{"id":3959,"date":"2026-10-31T07:33:16","date_gmt":"2026-10-31T07:33:16","guid":{"rendered":"https:\/\/www.zkprintpack.com\/?p=3959"},"modified":"2026-10-31T08:15:33","modified_gmt":"2026-10-31T08:15:33","slug":"custom-packaging-samples","status":"publish","type":"post","link":"https:\/\/www.zkprintpack.com\/vi\/custom-packaging-samples\/","title":{"rendered":"How to Test Custom Packaging Samples Before Bulk Production?"},"content":{"rendered":"<p class=\"wp-block-paragraph\">Testing custom packaging samples before bulk production is essential for verifying dimensions, print quality, sealing performance, material suitability, and packaging functionality. Buyers should compare samples against approved specifications, conduct application-based tests, and document acceptance criteria before authorizing mass production. <\/p>\n\n\n\n<p class=\"wp-block-paragraph\">V\u1edbi t\u01b0 c\u00e1ch l\u00e0 m\u1ed9t <strong><a href=\"https:\/\/www.zkprintpack.com\/vi\/\">nh\u00e0 s\u1ea3n xu\u1ea5t bao b\u00ec d\u1ebbo s\u1eed d\u1ee5ng m\u1ef1c in g\u1ed1c n\u01b0\u1edbc<\/a><\/strong> serving 40+ well-known companies in over 20 countries, <strong><a href=\"https:\/\/www.zkprintpack.com\/vi\/about-packaging-manufacturer\/\"><mark style=\"background-color:rgba(0, 0, 0, 0);color:#2f9144\" class=\"has-inline-color\">Zhongjia Bao b\u00ec<\/mark><\/a><\/strong> helps buyers make informed packaging decisions through professional production management and laboratory testing.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This guide explains how to test custom packaging samples, determine whether they meet quality requirements, and establish a reliable approval process before mass production.<\/p>\n\n\n\n<div id=\"ez-toc-container\" class=\"ez-toc-v2_0_88 counter-hierarchy ez-toc-counter ez-toc-grey ez-toc-container-direction\">\n<div class=\"ez-toc-title-container\">\n<p class=\"ez-toc-title\" style=\"cursor:inherit\">M\u1ee5c l\u1ee5c<\/p>\n<span class=\"ez-toc-title-toggle\"><a href=\"#\" class=\"ez-toc-pull-right ez-toc-btn ez-toc-btn-xs ez-toc-btn-default ez-toc-toggle\" aria-label=\"B\u1eadt\/t\u1eaft M\u1ee5c l\u1ee5c\"><span class=\"ez-toc-js-icon-con\"><span class=\"\"><span class=\"eztoc-hide\" style=\"display:none;\">Chuy\u1ec3n \u0111\u1ed5i<\/span><span class=\"ez-toc-icon-toggle-span\"><svg style=\"fill: #999;color:#999\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" class=\"list-377408\" width=\"20px\" height=\"20px\" viewbox=\"0 0 24 24\" fill=\"none\"><path d=\"M6 6H4v2h2V6zm14 0H8v2h12V6zM4 11h2v2H4v-2zm16 0H8v2h12v-2zM4 16h2v2H4v-2zm16 0H8v2h12v-2z\" fill=\"currentColor\"><\/path><\/svg><svg style=\"fill: #999;color:#999\" class=\"arrow-unsorted-368013\" xmlns=\"http:\/\/www.w3.org\/2000\/svg\" width=\"10px\" height=\"10px\" viewbox=\"0 0 24 24\" version=\"1.2\" baseprofile=\"tiny\"><path d=\"M18.2 9.3l-6.2-6.3-6.2 6.3c-.2.2-.3.4-.3.7s.1.5.3.7c.2.2.4.3.7.3h11c.3 0 .5-.1.7-.3.2-.2.3-.5.3-.7s-.1-.5-.3-.7zM5.8 14.7l6.2 6.3 6.2-6.3c.2-.2.3-.5.3-.7s-.1-.5-.3-.7c-.2-.2-.4-.3-.7-.3h-11c-.3 0-.5.1-.7.3-.2.2-.3.5-.3.7s.1.5.3.7z\"\/><\/svg><\/span><\/span><\/span><\/a><\/span><\/div>\n<nav><ul class='ez-toc-list ez-toc-list-level-1' ><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-1\" href=\"https:\/\/www.zkprintpack.com\/vi\/custom-packaging-samples\/#Why_Should_You_Test_Custom_Packaging_Samples_Before_Bulk_Production\" >Why Should You Test Custom Packaging Samples Before Bulk Production?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-2\" href=\"https:\/\/www.zkprintpack.com\/vi\/custom-packaging-samples\/#What_Types_of_Packaging_Samples_Should_You_Request\" >What Types of Packaging Samples Should You Request?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-3\" href=\"https:\/\/www.zkprintpack.com\/vi\/custom-packaging-samples\/#How_to_Test_Custom_Packaging_Samples_Before_Approving_Them\" >How to Test Custom Packaging Samples Before Approving Them?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-4\" href=\"https:\/\/www.zkprintpack.com\/vi\/custom-packaging-samples\/#1_Check_Packaging_Dimensions_and_Structure\" >1. Check Packaging Dimensions and Structure<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-5\" href=\"https:\/\/www.zkprintpack.com\/vi\/custom-packaging-samples\/#2_Inspect_Printing_Quality_and_Color_Consistency\" >2. Inspect Printing Quality and Color Consistency<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-6\" href=\"https:\/\/www.zkprintpack.com\/vi\/custom-packaging-samples\/#3_Conduct_Packaging_Seal_Strength_Testing\" >3. Conduct Packaging Seal Strength Testing<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-7\" href=\"https:\/\/www.zkprintpack.com\/vi\/custom-packaging-samples\/#4_Test_Zippers_Spouts_and_Other_Functional_Features\" >4. Test Zippers, Spouts, and Other Functional Features<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-8\" href=\"https:\/\/www.zkprintpack.com\/vi\/custom-packaging-samples\/#5_Evaluate_Material_and_Barrier_Performance\" >5. Evaluate Material and Barrier Performance<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-9\" href=\"https:\/\/www.zkprintpack.com\/vi\/custom-packaging-samples\/#6_Test_Packaging_with_the_Actual_Product\" >6. Test Packaging with the Actual Product<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-10\" href=\"https:\/\/www.zkprintpack.com\/vi\/custom-packaging-samples\/#How_Do_You_Determine_Whether_Packaging_Samples_Pass_Quality_Inspection\" >How Do You Determine Whether Packaging Samples Pass Quality Inspection?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-11\" href=\"https:\/\/www.zkprintpack.com\/vi\/custom-packaging-samples\/#How_Should_You_Approve_Packaging_Samples_Before_Bulk_Production\" >How Should You Approve Packaging Samples Before Bulk Production?<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-12\" href=\"https:\/\/www.zkprintpack.com\/vi\/custom-packaging-samples\/#What_Should_a_Packaging_Sample_Approval_Checklist_Include\" >What Should a Packaging Sample Approval Checklist Include?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-13\" href=\"https:\/\/www.zkprintpack.com\/vi\/custom-packaging-samples\/#Practical_recommendation\" >Practical recommendation<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-14\" href=\"https:\/\/www.zkprintpack.com\/vi\/custom-packaging-samples\/#What_Common_Mistakes_Should_Buyers_Avoid_When_Testing_Packaging_Samples\" >What Common Mistakes Should Buyers Avoid When Testing Packaging Samples?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-15\" href=\"https:\/\/www.zkprintpack.com\/vi\/custom-packaging-samples\/#FAQ\" >C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<\/a><ul class='ez-toc-list-level-3' ><li class='ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-16\" href=\"https:\/\/www.zkprintpack.com\/vi\/custom-packaging-samples\/#1_How_many_packaging_samples_should_you_test_before_bulk_production\" >1. How many packaging samples should you test before bulk production?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-17\" href=\"https:\/\/www.zkprintpack.com\/vi\/custom-packaging-samples\/#2_What_is_the_most_important_test_for_flexible_packaging_samples\" >2. What is the most important test for flexible packaging samples?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-18\" href=\"https:\/\/www.zkprintpack.com\/vi\/custom-packaging-samples\/#3_How_do_you_test_the_seal_strength_of_a_packaging_pouch\" >3. How do you test the seal strength of a packaging pouch?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-19\" href=\"https:\/\/www.zkprintpack.com\/vi\/custom-packaging-samples\/#4_Can_you_approve_packaging_samples_based_on_appearance_alone\" >4. Can you approve packaging samples based on appearance alone?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-20\" href=\"https:\/\/www.zkprintpack.com\/vi\/custom-packaging-samples\/#5_What_happens_if_packaging_samples_fail_testing\" >5. What happens if packaging samples fail testing?<\/a><\/li><li class='ez-toc-page-1 ez-toc-heading-level-3'><a class=\"ez-toc-link ez-toc-heading-21\" href=\"https:\/\/www.zkprintpack.com\/vi\/custom-packaging-samples\/#6_Why_is_water-based_ink_printing_important_for_custom_packaging\" >6. Why is water-based ink printing important for custom packaging?<\/a><\/li><\/ul><\/li><li class='ez-toc-page-1 ez-toc-heading-level-2'><a class=\"ez-toc-link ez-toc-heading-22\" href=\"https:\/\/www.zkprintpack.com\/vi\/custom-packaging-samples\/#Conclusion\" >K\u1ebft lu\u1eadn<\/a><\/li><\/ul><\/nav><\/div>\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Why_Should_You_Test_Custom_Packaging_Samples_Before_Bulk_Production\"><\/span>Why Should You Test Custom Packaging Samples Before Bulk Production?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Testing custom packaging samples allows buyers to verify that the packaging meets product requirements and agreed manufacturing specifications before a large order begins. <strong>It reduces the risk of printing errors, sealing defects, material incompatibility, and inconsistent finished products.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For flexible packaging, even a small specification mismatch can affect production efficiency and product protection.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Consider these common purchasing risks:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Incorrect dimensions: <\/strong>Bags may not fit filling equipment or hold the intended product volume.<\/li>\n\n\n\n<li><strong>Printing defects: <\/strong>Colors, logos, text, or barcodes may differ from the approved artwork.<\/li>\n\n\n\n<li><strong>Weak seals:<\/strong> Poor heat sealing can cause leakage, contamination, or product loss.<\/li>\n\n\n\n<li><strong>Unsuitable materials:<\/strong> Inadequate moisture or oxygen barriers can shorten product shelf life.<\/li>\n\n\n\n<li><strong>Functional problems:<\/strong> Zippers, spouts, and tear notches may not work as expected.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">A sample approval process gives both the buyer and manufacturer a shared quality reference. It also creates clear expectations for subsequent production inspections.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Types_of_Packaging_Samples_Should_You_Request\"><\/span>What Types of Packaging Samples Should You Request?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Buyers should understand the differences between structural samples, printed samples, and production-representative samples before arranging tests. Each sample type verifies different aspects of packaging performance.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th>Sample type<\/th><th>What it verifies<\/th><th>Main limitation<\/th><\/tr><tr><td>Structural sample<\/td><td>Dimensions, bag shape, capacity, and opening design<\/td><td>May not represent final printing or materials<\/td><\/tr><tr><td>Printed sample<\/td><td>Artwork, colors, text, and layout<\/td><td>May not reproduce every production condition<\/td><\/tr><tr><td>Production-representative sample<\/td><td>Material structure, printing, sealing, and functionality<\/td><td>Requires agreement on how closely it represents the final production process<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">For example, a <strong><a href=\"https:\/\/www.zkprintpack.com\/vi\/custom-stand-up-pouch\/\">stand-up pouch<\/a><\/strong> sample may confirm its dimensions and bottom-gusset structure, while a printed sample helps evaluate brand presentation.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.zkprintpack.com\/vi\/san-pham\/custom-solid-beverage-stand-up-bag\/\"><img decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/09\/Custom-Solid-Beverage-Stand-Up-Bag-wholesale.webp\" alt=\"Custom Solid Beverage Stand-Up Bag wholesale\" class=\"wp-image-3871\" srcset=\"https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/09\/Custom-Solid-Beverage-Stand-Up-Bag-wholesale.webp 800w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/09\/Custom-Solid-Beverage-Stand-Up-Bag-wholesale-150x150.webp 150w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/09\/Custom-Solid-Beverage-Stand-Up-Bag-wholesale-768x768.webp 768w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/09\/Custom-Solid-Beverage-Stand-Up-Bag-wholesale-12x12.webp 12w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/09\/Custom-Solid-Beverage-Stand-Up-Bag-wholesale-600x600.webp 600w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/09\/Custom-Solid-Beverage-Stand-Up-Bag-wholesale-300x300.webp 300w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/09\/Custom-Solid-Beverage-Stand-Up-Bag-wholesale-100x100.webp 100w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">However, neither guarantees that the final pouch will withstand actual filling and sealing conditions.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">When evaluating packaging samples before bulk production, request samples that represent the intended material structure, printing process, and manufacturing method as closely as possible. Confirm any differences between the sample-making process and the planned mass-production process.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_to_Test_Custom_Packaging_Samples_Before_Approving_Them\"><\/span>How to Test Custom Packaging Samples Before Approving Them?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">A reliable testing process should cover six essential areas: <strong>dimensions, printing, sealing, functional components, material performance, and actual product compatibility.<\/strong> Buyers should evaluate each area against written specifications rather than relying on appearance alone.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_Check_Packaging_Dimensions_and_Structure\"><\/span>1. Check Packaging Dimensions and Structure<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Measure the sample against the approved technical drawing to confirm that its dimensions, shape, and construction meet the order requirements.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Check the following:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Measure bag width and height.<\/li>\n\n\n\n<li>Check gusset depth for stand-up and flat-bottom pouches.<\/li>\n\n\n\n<li>Inspect side seals, bottom seals, and edge alignment.<\/li>\n\n\n\n<li>Confirm zipper, spout, and tear-notch positions.<\/li>\n\n\n\n<li>Compare the measurements with the approved specifications.<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">Pay particular attention to the differences between nominal dimensions and actual measurements. The buyer and manufacturer should agree on acceptable tolerances before testing begins.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For example, a <strong><a href=\"https:\/\/www.zkprintpack.com\/vi\/custom-flat-bottom-pouch\/\">flat-bottom pouch<\/a><\/strong> must have a stable bottom structure to stand upright when filled. A <strong><a href=\"https:\/\/www.zkprintpack.com\/vi\/custom-stand-up-pouch\/\">stand-up pouch<\/a><\/strong> must maintain its intended shape without excessive deformation.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.zkprintpack.com\/vi\/san-pham\/custom-printed-flat-bottom-pouches\/\"><img decoding=\"async\" width=\"700\" height=\"700\" src=\"https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/07\/Custom-Printed-Flat-Bottom-Pouches.webp\" alt=\"T\u00fai \u0111\u00e1y ph\u1eb3ng in theo y\u00eau c\u1ea7u\" class=\"wp-image-3465\" srcset=\"https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/07\/Custom-Printed-Flat-Bottom-Pouches.webp 700w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/07\/Custom-Printed-Flat-Bottom-Pouches-150x150.webp 150w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/07\/Custom-Printed-Flat-Bottom-Pouches-12x12.webp 12w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/07\/Custom-Printed-Flat-Bottom-Pouches-600x600.webp 600w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/07\/Custom-Printed-Flat-Bottom-Pouches-300x300.webp 300w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/07\/Custom-Printed-Flat-Bottom-Pouches-100x100.webp 100w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><\/a><figcaption class=\"wp-element-caption\"><strong><a href=\"https:\/\/www.zkprintpack.com\/vi\/custom-flat-bottom-pouch\/\">flat-bottom pouch<\/a><\/strong><\/figcaption><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.zkprintpack.com\/vi\/san-pham\/custom-beef-jerky-packaging-bag-pouch\/\"><img decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/06\/Custom-Beef-Jerky-Packaging-Manufacturer-.webp\" alt=\"Nh\u00e0 s\u1ea3n xu\u1ea5t bao b\u00ec th\u1ecbt b\u00f2 kh\u00f4 theo y\u00eau c\u1ea7u \u2013 Zhongjia Packaging\" class=\"wp-image-3351\" srcset=\"https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/06\/Custom-Beef-Jerky-Packaging-Manufacturer-.webp 800w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/06\/Custom-Beef-Jerky-Packaging-Manufacturer--150x150.webp 150w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/06\/Custom-Beef-Jerky-Packaging-Manufacturer--768x768.webp 768w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/06\/Custom-Beef-Jerky-Packaging-Manufacturer--12x12.webp 12w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/06\/Custom-Beef-Jerky-Packaging-Manufacturer--600x600.webp 600w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/06\/Custom-Beef-Jerky-Packaging-Manufacturer--300x300.webp 300w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/06\/Custom-Beef-Jerky-Packaging-Manufacturer--100x100.webp 100w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/a><figcaption class=\"wp-element-caption\"><strong><a href=\"https:\/\/www.zkprintpack.com\/vi\/custom-stand-up-pouch\/\">stand-up pouch<\/a><\/strong> <\/figcaption><\/figure>\n<\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Acceptance criteria: All critical dimensions, structural details, and component positions must meet the agreed specifications. Samples with incorrect dimensions or visibly defective seals should not receive approval.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_Inspect_Printing_Quality_and_Color_Consistency\"><\/span>2. Inspect Printing Quality and Color Consistency<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Printed packaging sample approval requires checking whether the printed design matches the approved artwork in color, layout, text, and visual quality.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For brands, packaging is part of product identity. Printing defects can affect shelf presentation and create problems with product information.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Use this inspection checklist:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Color accuracy: Compare printed colors with the approved color reference or agreed proof under consistent lighting.<\/li>\n\n\n\n<li>Registration: Check whether different printing colors align correctly.<\/li>\n\n\n\n<li>Text readability: Inspect product names, ingredient information, instructions, and other essential details.<\/li>\n\n\n\n<li>Artwork positioning: Verify logos, graphics, and text placement.<\/li>\n\n\n\n<li>Surface quality: Look for scratches, smudges, ink transfer, and uneven printing.<\/li>\n\n\n\n<li>Barcode readability: Scan the printed barcode using an appropriate reader.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><a href=\"https:\/\/www.zkprintpack.com\/vi\/about-packaging-manufacturer\/\"><mark style=\"background-color:rgba(0, 0, 0, 0);color:#2f9144\" class=\"has-inline-color\">Zhongjia Bao b\u00ec<\/mark><\/a><\/strong> chuy\u00ean v\u1ec1 <strong><a href=\"https:\/\/www.zkprintpack.com\/vi\/water-based-ink-printing\/\">in b\u1eb1ng m\u1ef1c g\u1ed1c n\u01b0\u1edbc<\/a><\/strong> for flexible packaging. Water-based inks use water as a major carrier and can help reduce reliance on conventional solvent-based ink systems.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:50%\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.zkprintpack.com\/vi\/water-based-ink-printing\/\"><img decoding=\"async\" width=\"768\" height=\"1154\" src=\"https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/09\/Environmentally-Friendly-Flexible-Packaging-Water-Based-Ink-Printing-2.webp\" alt=\"Environmentally Friendly Flexible Packaging-Water-Based Ink Printing 2\" class=\"wp-image-3841\" srcset=\"https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/09\/Environmentally-Friendly-Flexible-Packaging-Water-Based-Ink-Printing-2.webp 768w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/09\/Environmentally-Friendly-Flexible-Packaging-Water-Based-Ink-Printing-2-8x12.webp 8w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/09\/Environmentally-Friendly-Flexible-Packaging-Water-Based-Ink-Printing-2-600x902.webp 600w\" sizes=\"(max-width: 768px) 100vw, 768px\" \/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\" style=\"flex-basis:25%\"><\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">According to the <a href=\"https:\/\/www.epa.gov\/air-emissions-monitoring-knowledge-base\/monitoring-control-technique-compliant-lowno-vochap-inks?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noopener\">U.S. Environmental Protection Agency (EPA)<\/a>, waterborne inks are among the coating and printing technologies used in low- or no-VOC\/HAP formulations. However, actual environmental performance depends on the complete ink formulation and applicable requirements.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For this reason, buyers should also evaluate the printed surface for ink adhesion, drying quality, and resistance to rubbing.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>Acceptance criteria:<\/strong> Printed samples must match the approved artwork, meet agreed color tolerances, and show no unacceptable printing defects. Essential text and barcodes must remain clear and usable.<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_Conduct_Packaging_Seal_Strength_Testing\"><\/span>3. Conduct Packaging Seal Strength Testing<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Packaging seal strength testing measures how well flexible packaging seals resist separation. It is essential for <strong><a href=\"https:\/\/www.zkprintpack.com\/vi\/custom-stand-up-pouch\/\">t\u00fai \u0111\u1ee9ng<\/a><\/strong>, <strong><a href=\"https:\/\/www.zkprintpack.com\/vi\/custom-flat-bottom-pouch\/\">flat-bottom bags<\/a><\/strong>, <strong><a href=\"https:\/\/www.zkprintpack.com\/vi\/custom-three-side-seal-pouch\/\">three-side seal bags<\/a><\/strong>, and other heat-sealed packaging.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.zkprintpack.com\/vi\/san-pham\/wholsale-dog-food-packaging-pouches\/\"><img decoding=\"async\" width=\"700\" height=\"700\" src=\"https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/07\/Wholsale-Dog-Food-Packaging.webp\" alt=\"Bao b\u00ec th\u1ee9c \u0103n cho ch\u00f3 b\u00e1n bu\u00f4n\" class=\"wp-image-3444\" srcset=\"https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/07\/Wholsale-Dog-Food-Packaging.webp 700w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/07\/Wholsale-Dog-Food-Packaging-150x150.webp 150w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/07\/Wholsale-Dog-Food-Packaging-12x12.webp 12w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/07\/Wholsale-Dog-Food-Packaging-600x600.webp 600w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/07\/Wholsale-Dog-Food-Packaging-300x300.webp 300w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/07\/Wholsale-Dog-Food-Packaging-100x100.webp 100w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.zkprintpack.com\/vi\/san-pham\/oem-cat-food-bag-factory-wholesale\/\"><img decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/07\/OEM-Cat-Food-Bag-Factory-Supply-Wholesale-Packaging.webp\" alt=\"Nh\u00e0 m\u00e1y s\u1ea3n xu\u1ea5t t\u00fai \u0111\u1ef1ng th\u1ee9c \u0103n cho m\u00e8o OEM cung c\u1ea5p bao b\u00ec b\u00e1n bu\u00f4n\" class=\"wp-image-3480\" srcset=\"https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/07\/OEM-Cat-Food-Bag-Factory-Supply-Wholesale-Packaging.webp 800w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/07\/OEM-Cat-Food-Bag-Factory-Supply-Wholesale-Packaging-150x150.webp 150w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/07\/OEM-Cat-Food-Bag-Factory-Supply-Wholesale-Packaging-768x768.webp 768w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/07\/OEM-Cat-Food-Bag-Factory-Supply-Wholesale-Packaging-12x12.webp 12w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/07\/OEM-Cat-Food-Bag-Factory-Supply-Wholesale-Packaging-600x600.webp 600w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/07\/OEM-Cat-Food-Bag-Factory-Supply-Wholesale-Packaging-300x300.webp 300w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/07\/OEM-Cat-Food-Bag-Factory-Supply-Wholesale-Packaging-100x100.webp 100w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.zkprintpack.com\/vi\/san-pham\/custom-pepper-powder-packaging-bag\/\"><img decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/10\/Custom-Pepper-Powder-Packaging-Bag-3-Side-Seal-Bag-Wholesale.webp\" alt=\"Custom Pepper Powder Packaging Bag-3 Side Seal Bag Wholesale\" class=\"wp-image-3951\" srcset=\"https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/10\/Custom-Pepper-Powder-Packaging-Bag-3-Side-Seal-Bag-Wholesale.webp 800w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/10\/Custom-Pepper-Powder-Packaging-Bag-3-Side-Seal-Bag-Wholesale-150x150.webp 150w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/10\/Custom-Pepper-Powder-Packaging-Bag-3-Side-Seal-Bag-Wholesale-768x768.webp 768w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/10\/Custom-Pepper-Powder-Packaging-Bag-3-Side-Seal-Bag-Wholesale-12x12.webp 12w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/10\/Custom-Pepper-Powder-Packaging-Bag-3-Side-Seal-Bag-Wholesale-600x600.webp 600w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/10\/Custom-Pepper-Powder-Packaging-Bag-3-Side-Seal-Bag-Wholesale-300x300.webp 300w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/10\/Custom-Pepper-Powder-Packaging-Bag-3-Side-Seal-Bag-Wholesale-100x100.webp 100w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/a><\/figure>\n<\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">A weak seal can cause leakage during filling, transportation, and storage, even when the packaging material itself is suitable.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Buyers should evaluate:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Visual seal inspection: <\/strong>Check for wrinkles, channels, contamination, incomplete sealing, and uneven seal areas.<\/li>\n\n\n\n<li><strong>Manual opening test:<\/strong> Open the pouch carefully to identify obvious weak points or inconsistent sealing.<\/li>\n\n\n\n<li><strong>Seal strength measurement:<\/strong> Use a suitable tensile testing method to measure the force required to separate the sealed area.<\/li>\n\n\n\n<li><strong>Leakage inspection: <\/strong>Use an appropriate package integrity test to identify leaks or seal defects.<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">C\u00e1i <a href=\"https:\/\/store.astm.org\/f0088_f0088m-23.html?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noopener\">ASTM F88\/F88M standard<\/a>, published by ASTM International, describes a method for measuring the strength of seals in flexible barrier materials. It also identifies the failure mode.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">For gross leak detection, <a href=\"https:\/\/store.astm.org\/standards\/f2096?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noopener\">ASTM F2096<\/a> describes an internal pressurization bubble test. Its published scope reports detection sensitivity down to 250 \u03bcm with an 81% probability under the specified test conditions. This is a method-specific result, not a universal guarantee for every pouch or defect.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>Acceptance criteria:<\/strong> Seals must be continuous, free from visible channels, and capable of meeting the agreed minimum seal strength and package integrity requirements. The target should account for both transportation protection and consumer opening needs.<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_Test_Zippers_Spouts_and_Other_Functional_Features\"><\/span>4. Test Zippers, Spouts, and Other Functional Features<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Functional components must operate correctly under realistic conditions. A packaging sample is not acceptable simply because its zipper or spout looks properly installed.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"360\" height=\"360\" src=\"https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2024\/12\/custom-pouches-T-zipper.webp\" alt=\"T\u00fai \u0111\u1ef1ng t\u00f9y ch\u1ec9nh - T-zipper\" class=\"wp-image-540\" srcset=\"https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2024\/12\/custom-pouches-T-zipper.webp 360w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2024\/12\/custom-pouches-T-zipper-150x150.webp 150w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2024\/12\/custom-pouches-T-zipper-300x300.webp 300w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2024\/12\/custom-pouches-T-zipper-100x100.webp 100w\" sizes=\"(max-width: 360px) 100vw, 360px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"1500\" height=\"1500\" src=\"https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2024\/12\/custom-pouches-Spout.webp\" alt=\"T\u00fai \u0111\u1ef1ng t\u00f9y ch\u1ec9nh - V\u00f2i r\u00f3t\" class=\"wp-image-538\" srcset=\"https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2024\/12\/custom-pouches-Spout.webp 1500w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2024\/12\/custom-pouches-Spout-150x150.webp 150w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2024\/12\/custom-pouches-Spout-768x768.webp 768w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2024\/12\/custom-pouches-Spout-1200x1200.webp 1200w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2024\/12\/custom-pouches-Spout-600x600.webp 600w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2024\/12\/custom-pouches-Spout-300x300.webp 300w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2024\/12\/custom-pouches-Spout-100x100.webp 100w\" sizes=\"(max-width: 1500px) 100vw, 1500px\" \/><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><img decoding=\"async\" width=\"521\" height=\"521\" src=\"https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2024\/12\/custom-pouches-Degassing-Valve.webp\" alt=\"T\u00fai \u0111\u1ef1ng t\u00f9y ch\u1ec9nh - Van x\u1ea3 kh\u00ed\" class=\"wp-image-532\" srcset=\"https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2024\/12\/custom-pouches-Degassing-Valve.webp 521w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2024\/12\/custom-pouches-Degassing-Valve-150x150.webp 150w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2024\/12\/custom-pouches-Degassing-Valve-300x300.webp 300w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2024\/12\/custom-pouches-Degassing-Valve-100x100.webp 100w\" sizes=\"(max-width: 521px) 100vw, 521px\" \/><\/figure>\n<\/div>\n<\/div>\n\n\n\n<p class=\"wp-block-paragraph\">Different packaging structures require different checks.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th>Packaging feature<\/th><th>Recommended test<\/th><th>What to check<\/th><\/tr><tr><td>Kh\u00f3a k\u00e9o<\/td><td>Repeated opening and closing<\/td><td>Smooth operation and reliable closure<\/td><\/tr><tr><td>V\u00f2i<\/td><td>Filling, dispensing, and leakage test<\/td><td>Secure attachment and leak resistance<\/td><\/tr><tr><td>Tear notch<\/td><td>Manual opening test<\/td><td>Easy and controlled opening<\/td><\/tr><tr><td>Stand-up bottom<\/td><td>Filled-pouch stability test<\/td><td>Upright position and structural support<\/td><\/tr><tr><td>Valve<\/td><td>Functional airflow test, where applicable<\/td><td>Correct operation and sealing<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">For example, a liquid packaging pouch should be filled with a suitable test liquid to check dispensing performance and leakage around the spout.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A resealable food pouch should be opened and closed repeatedly to verify that the zipper remains functional.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>Acceptance criteria:<\/strong> Every functional component must perform as specified without detachment, obstruction, unexpected leakage, or unacceptable operating difficulty.<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5_Evaluate_Material_and_Barrier_Performance\"><\/span>5. Evaluate Material and Barrier Performance<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Material testing determines whether the packaging structure provides adequate protection for the intended product. Buyers should select tests according to product sensitivity, storage conditions, and required shelf life.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Common performance indicators include:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th>Performance indicator<\/th><th>What it measures<\/th><th>Relevant application<\/th><\/tr><tr><td>OTR<\/td><td>Oxygen transmission rate<\/td><td>Food and products sensitive to oxidation<\/td><\/tr><tr><td>WVTR<\/td><td>Water vapor transmission rate<\/td><td>Moisture-sensitive food and powders<\/td><\/tr><tr><td>Kh\u1ea3 n\u0103ng ch\u1ed1ng th\u1ee7ng<\/td><td>Resistance to penetration<\/td><td>Packaging exposed to handling stress<\/td><\/tr><tr><td>Lamination bond strength<\/td><td>Adhesion between material layers<\/td><td>Laminated flexible packaging<\/td><\/tr><tr><td>Abrasion resistance<\/td><td>Resistance to surface rubbing<\/td><td>Printed packaging during transportation<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Two useful reference methods are:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><a href=\"https:\/\/store.astm.org\/d3985-95.html?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noopener\">ASTM D3985<\/a>: Measures oxygen gas transmission through plastic films and related materials.<\/li>\n\n\n\n<li><a href=\"https:\/\/store.astm.org\/standards\/f1249?utm_source=chatgpt.com\" target=\"_blank\" rel=\"noopener\">ASTM F1249<\/a>: Measures water vapor transmission through plastic films and sheeting.<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">ASTM F1249-25 specifically identifies water vapor transmission rate as a property that can relate to product shelf life and packaged product stability.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">These tests are especially relevant to food packaging, where moisture and oxygen exposure can affect product quality.<\/p>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>Acceptance criteria:<\/strong> OTR, WVTR, and other material performance values must meet the agreed technical targets under specified test conditions. A visual inspection cannot replace laboratory barrier testing.<\/p>\n<\/blockquote>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"6_Test_Packaging_with_the_Actual_Product\"><\/span>6. Test Packaging with the Actual Product<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Testing a pouch with the actual product or a representative filling material provides a more realistic assessment than examining an empty sample.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This step is particularly important because packaging performance depends on the interaction between the package, filling process, and product characteristics.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Follow these steps:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li>Fill the sample with the intended product or a suitable substitute.<\/li>\n\n\n\n<li>Check whether the pouch can accommodate the required filling volume.<\/li>\n\n\n\n<li>Inspect the packaging during filling and sealing.<\/li>\n\n\n\n<li>Observe whether the filled package maintains its shape.<\/li>\n\n\n\n<li>Check for leakage, deformation, or material damage.<\/li>\n\n\n\n<li>Evaluate handling, stacking, and transportation conditions relevant to the product.<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">For liquid products, inspect spouts and seals carefully. For powders, check the opening, filling area, and sealing zone for contamination. For snacks and dry food, evaluate whether the packaging structure provides the required barrier protection.<\/p>\n\n\n\n<div class=\"wp-block-columns is-layout-flex wp-container-core-columns-is-layout-8f761849 wp-block-columns-is-layout-flex\">\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.zkprintpack.com\/vi\/san-pham\/liquid-hand-soap-refill-shaped-pouch\/\"><img decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/06\/Liquid-Hand-Soap-Refill-Shaped-Pouch-Manufacturer-Zhongjia-Packaging.webp\" alt=\"Nh\u00e0 s\u1ea3n xu\u1ea5t t\u00fai \u0111\u1ef1ng dung d\u1ecbch x\u00e0 ph\u00f2ng r\u1eeda tay d\u1ea1ng l\u1ecfng Zhongjia Packaging\" class=\"wp-image-3355\" srcset=\"https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/06\/Liquid-Hand-Soap-Refill-Shaped-Pouch-Manufacturer-Zhongjia-Packaging.webp 800w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/06\/Liquid-Hand-Soap-Refill-Shaped-Pouch-Manufacturer-Zhongjia-Packaging-150x150.webp 150w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/06\/Liquid-Hand-Soap-Refill-Shaped-Pouch-Manufacturer-Zhongjia-Packaging-768x768.webp 768w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/06\/Liquid-Hand-Soap-Refill-Shaped-Pouch-Manufacturer-Zhongjia-Packaging-12x12.webp 12w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/06\/Liquid-Hand-Soap-Refill-Shaped-Pouch-Manufacturer-Zhongjia-Packaging-600x600.webp 600w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/06\/Liquid-Hand-Soap-Refill-Shaped-Pouch-Manufacturer-Zhongjia-Packaging-300x300.webp 300w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/06\/Liquid-Hand-Soap-Refill-Shaped-Pouch-Manufacturer-Zhongjia-Packaging-100x100.webp 100w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.zkprintpack.com\/vi\/san-pham\/wholesale-grain-powder-packaging\/\"><img decoding=\"async\" width=\"800\" height=\"800\" src=\"https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/09\/Wholesale-Grain-Powder-Packaging-Stand-Up-Zipper-Pouch-Supplier.webp\" alt=\"Wholesale Grain Powder Packaging-Stand-Up Zipper Pouch Supplier\" class=\"wp-image-3876\" srcset=\"https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/09\/Wholesale-Grain-Powder-Packaging-Stand-Up-Zipper-Pouch-Supplier.webp 800w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/09\/Wholesale-Grain-Powder-Packaging-Stand-Up-Zipper-Pouch-Supplier-150x150.webp 150w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/09\/Wholesale-Grain-Powder-Packaging-Stand-Up-Zipper-Pouch-Supplier-768x768.webp 768w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/09\/Wholesale-Grain-Powder-Packaging-Stand-Up-Zipper-Pouch-Supplier-12x12.webp 12w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/09\/Wholesale-Grain-Powder-Packaging-Stand-Up-Zipper-Pouch-Supplier-600x600.webp 600w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/09\/Wholesale-Grain-Powder-Packaging-Stand-Up-Zipper-Pouch-Supplier-300x300.webp 300w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/09\/Wholesale-Grain-Powder-Packaging-Stand-Up-Zipper-Pouch-Supplier-100x100.webp 100w\" sizes=\"(max-width: 800px) 100vw, 800px\" \/><\/a><\/figure>\n<\/div>\n\n\n\n<div class=\"wp-block-column is-layout-flow wp-block-column-is-layout-flow\">\n<figure class=\"wp-block-image size-full\"><a href=\"https:\/\/www.zkprintpack.com\/vi\/san-pham\/custom-snack-packaging-bags-supplier\/\"><img decoding=\"async\" width=\"700\" height=\"700\" src=\"https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/07\/Custom-Snack-Packaging-Bags.webp\" alt=\"T\u00fai \u0111\u00f3ng g\u00f3i \u0111\u1ed3 \u0103n v\u1eb7t theo y\u00eau c\u1ea7u\" class=\"wp-image-3479\" srcset=\"https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/07\/Custom-Snack-Packaging-Bags.webp 700w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/07\/Custom-Snack-Packaging-Bags-150x150.webp 150w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/07\/Custom-Snack-Packaging-Bags-12x12.webp 12w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/07\/Custom-Snack-Packaging-Bags-600x600.webp 600w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/07\/Custom-Snack-Packaging-Bags-300x300.webp 300w, https:\/\/www.zkprintpack.com\/wp-content\/uploads\/2026\/07\/Custom-Snack-Packaging-Bags-100x100.webp 100w\" sizes=\"(max-width: 700px) 100vw, 700px\" \/><\/a><\/figure>\n<\/div>\n<\/div>\n\n\n\n<blockquote class=\"wp-block-quote is-layout-flow wp-block-quote-is-layout-flow\">\n<p class=\"wp-block-paragraph\"><strong>Acceptance criteria:<\/strong> The packaging must work with the intended filling process, maintain its structure, and protect the product according to the agreed application requirements.<\/p>\n<\/blockquote>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_Do_You_Determine_Whether_Packaging_Samples_Pass_Quality_Inspection\"><\/span>How Do You Determine Whether Packaging Samples Pass Quality Inspection?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Packaging samples pass inspection only when they meet all agreed critical specifications and functional requirements. Buyers should use documented acceptance criteria to make approval decisions instead of relying on personal opinions or visual impressions.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A practical quality evaluation should divide requirements into three categories:<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th>Inspection category<\/th><th>Key requirements<\/th><th>Decision<\/th><\/tr><tr><td>Critical requirements<\/td><td>Seal integrity, material suitability, essential product information, and functional safety<\/td><td>Any critical failure requires rejection<\/td><\/tr><tr><td>Major requirements<\/td><td>Incorrect dimensions, printing defects, zipper failure, and visible structural problems<\/td><td>Correct before approval<\/td><\/tr><tr><td>Minor requirements<\/td><td>Small cosmetic variations within agreed tolerances<\/td><td>Accept only if they do not affect usability or agreed appearance standards<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Buyers should also establish measurable requirements before testing. For example, specify acceptable dimensions, color references, minimum seal strength, and required OTR or WVTR values where applicable.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">One important principle is that passing one test does not automatically mean the entire package is acceptable. A pouch may have excellent printing but poor sealing performance. Each critical requirement must pass independently.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"How_Should_You_Approve_Packaging_Samples_Before_Bulk_Production\"><\/span>How Should You Approve Packaging Samples Before Bulk Production?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Packaging sample approval should follow a documented process that connects the approved design, material specifications, test results, and final production requirements. Both parties must confirm the same reference version before bulk manufacturing begins.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Follow these five steps:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Step 1: Create a Sample Inspection Record<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Record the sample identification number, product type, material structure, dimensions, printing requirements, and test results.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Step 2: Compare Results Against Specifications<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Review all inspection results and identify any deviations from the approved technical requirements.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Step 3: Request Corrections if Necessary<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">If a sample fails, provide specific feedback, such as incorrect pouch dimensions, poor color registration, weak seals, or an unsuitable zipper.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Step 4: Approve the Final Reference Sample<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Once all critical requirements pass, approve the final sample in writing. Keep a physical reference sample or clearly identified digital records for future comparison.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Step 5: Lock the Production Specifications<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Confirm that the approved sample, artwork version, material structure, printing requirements, and quality standards will be used for bulk production.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Should_a_Packaging_Sample_Approval_Checklist_Include\"><\/span>What Should a Packaging Sample Approval Checklist Include?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The following checklist provides a practical reference for buyers and manufacturers.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><tbody><tr><th>Inspection item<\/th><th>Acceptance requirement<\/th><th>Status<\/th><\/tr><tr><td>Dimensions<\/td><td>Match approved measurements and tolerances<\/td><td>Pass \/ Fail<\/td><\/tr><tr><td>Bag structure<\/td><td>Correct shape, gusset, and construction<\/td><td>Pass \/ Fail<\/td><\/tr><tr><td>Printing<\/td><td>Approved colors, artwork, and text<\/td><td>Pass \/ Fail<\/td><\/tr><tr><td>Ink adhesion<\/td><td>Meets agreed rub and adhesion requirements<\/td><td>Pass \/ Fail<\/td><\/tr><tr><td>Seal strength<\/td><td>Meets agreed minimum requirements<\/td><td>Pass \/ Fail<\/td><\/tr><tr><td>Leakage resistance<\/td><td>No unacceptable leakage<\/td><td>Pass \/ Fail<\/td><\/tr><tr><td>Functional components<\/td><td>Zippers, spouts, and tear notches work correctly<\/td><td>Pass \/ Fail<\/td><\/tr><tr><td>Material performance<\/td><td>Meets specified barrier requirements<\/td><td>Pass \/ Fail<\/td><\/tr><tr><td>Actual product compatibility<\/td><td>Suitable for filling, storage, and handling<\/td><td>Pass \/ Fail<\/td><\/tr><tr><td>Final approval<\/td><td>Written approval and reference sample retained<\/td><td>Pass \/ Fail<\/td><\/tr><\/tbody><\/table><\/figure>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Practical_recommendation\"><\/span>Practical recommendation<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Use a three-part approval record: <strong>Approved Artwork + Approved Material Structure + Approved Performance Results.<\/strong><\/p>\n\n\n\n<p class=\"wp-block-paragraph\">This is an important but frequently overlooked aspect of sample management. Buyers often approve a printed appearance without formally locking the material structure or functional requirements. That creates room for misunderstandings when production specifications are transferred between departments.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">A complete approval record connects what the buyer sees, what the manufacturer produces, and what the final packaging must achieve.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"What_Common_Mistakes_Should_Buyers_Avoid_When_Testing_Packaging_Samples\"><\/span>What Common Mistakes Should Buyers Avoid When Testing Packaging Samples?<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Buyers should avoid approving samples based only on appearance, skipping functional tests, or failing to document final specifications. These mistakes can lead to quality disputes, production delays, and additional costs.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Here are five common mistakes:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Approving samples from photographs only. <\/strong>Photographs cannot verify seal strength, material thickness, leakage resistance, or actual product compatibility.<\/li>\n\n\n\n<li><strong>Ignoring actual filling conditions.<\/strong> An empty pouch may look perfect but fail when filled or sealed on production equipment.<\/li>\n\n\n\n<li><strong>Overlooking printing and artwork details.<\/strong> Incorrect text, colors, or barcode positioning can create problems after distribution.<\/li>\n\n\n\n<li><strong>Failing to define acceptance standards. <\/strong>Without agreed tolerances and performance targets, buyers and manufacturers may interpret quality differently.<\/li>\n\n\n\n<li><strong>Changing specifications after approval. <\/strong>Material, artwork, or structural changes should trigger a new review and approval when they affect product performance.<\/li>\n<\/ol>\n\n\n\n<p class=\"wp-block-paragraph\">The best approach is to treat sample approval as a formal quality-control milestone rather than a simple purchasing formality.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"FAQ\"><\/span>C\u00e2u h\u1ecfi th\u01b0\u1eddng g\u1eb7p<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"1_How_many_packaging_samples_should_you_test_before_bulk_production\"><\/span>1. How many packaging samples should you test before bulk production?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The number depends on packaging complexity, order volume, product risk, and the agreed sampling plan. Test enough representative samples to evaluate critical dimensions, printing consistency, sealing performance, and functional reliability. Destructive tests should use separate samples.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"2_What_is_the_most_important_test_for_flexible_packaging_samples\"><\/span>2. What is the most important test for flexible packaging samples?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">There is no single test that applies to every package. Seal strength and leakage resistance are essential for heat-sealed pouches, while OTR and WVTR are important for products requiring oxygen and moisture protection. Actual product compatibility is also critical.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"3_How_do_you_test_the_seal_strength_of_a_packaging_pouch\"><\/span>3. How do you test the seal strength of a packaging pouch?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Use a suitable tensile testing method, such as ASTM F88\/F88M, to measure the force required to separate a sealed specimen. Establish the testing procedure, specimen preparation, and minimum acceptance value before inspection.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"4_Can_you_approve_packaging_samples_based_on_appearance_alone\"><\/span>4. Can you approve packaging samples based on appearance alone?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">No. Visual inspection can identify printing, structural, and cosmetic defects, but it cannot confirm sealing strength, barrier performance, or leakage resistance. Functional and laboratory testing are necessary when required by the packaging application.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"5_What_happens_if_packaging_samples_fail_testing\"><\/span>5. What happens if packaging samples fail testing?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">The manufacturer should identify the defect, determine its cause, and make the necessary corrections. A revised sample must be tested again against the original requirements. Bulk production should not proceed until critical issues are resolved and the final sample receives written approval.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"6_Why_is_water-based_ink_printing_important_for_custom_packaging\"><\/span>6. Why is water-based ink printing important for custom packaging?<span class=\"ez-toc-section-end\"><\/span><\/h3>\n\n\n\n<p class=\"wp-block-paragraph\">Water-based inks use water as a major carrier and can reduce reliance on conventional solvent-based printing systems. They support packaging manufacturers seeking lower-VOC printing approaches. However, buyers should still verify ink adhesion, drying performance, print quality, and applicable food-contact requirements for the intended application.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\"><span class=\"ez-toc-section\" id=\"Conclusion\"><\/span>K\u1ebft lu\u1eadn<span class=\"ez-toc-section-end\"><\/span><\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Testing custom packaging samples before bulk production is essential for ensuring product quality, preventing manufacturing defects, and avoiding unnecessary costs. By checking dimensions, printing quality, seal strength, material performance, and functional features, buyers can identify potential problems early and make informed approval decisions. A documented sample approval process also ensures that the final production specifications meet expectations for both the buyer and manufacturer.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Choosing an <strong><a href=\"https:\/\/www.zkprintpack.com\/vi\/\">experienced manufacturing partner<\/a><\/strong> is equally important. <strong><a href=\"https:\/\/www.zkprintpack.com\/vi\/about-packaging-manufacturer\/\"><mark style=\"background-color:rgba(0, 0, 0, 0);color:#2f9144\" class=\"has-inline-color\">Zhongjia Bao b\u00ec<\/mark><\/a><\/strong> chuy\u00ean v\u1ec1 <strong><a href=\"https:\/\/www.zkprintpack.com\/vi\/water-based-ink-printing\/\">bao b\u00ec d\u1ebbo in b\u1eb1ng m\u1ef1c g\u1ed1c n\u01b0\u1edbc<\/a><\/strong>, offering customized <strong><a href=\"https:\/\/www.zkprintpack.com\/vi\/custom-stand-up-pouch\/\">t\u00fai \u0111\u1ee9ng<\/a><\/strong>, <strong><a href=\"https:\/\/www.zkprintpack.com\/vi\/custom-flat-bottom-pouch\/\" data-type=\"page\" data-id=\"834\">flat-bottom pouches<\/a><\/strong>, <strong><a href=\"https:\/\/www.zkprintpack.com\/vi\/custom-spout-pouch\/\" data-type=\"page\" data-id=\"868\">t\u00fai c\u00f3 v\u00f2i r\u00f3t<\/a><\/strong>, and <strong><a href=\"https:\/\/www.zkprintpack.com\/vi\/custom-gusset-pouch-manufacturer\/\" data-type=\"page\" data-id=\"1958\">side gusset bags<\/a><\/strong> for food, daily-use products, and toys. With four high-speed production lines, professional production management, and laboratory testing, we are committed to delivering reliable packaging solutions.<\/p>\n\n\n\n<figure class=\"wp-block-embed is-type-video is-provider-youtube wp-block-embed-youtube wp-embed-aspect-16-9 wp-has-aspect-ratio\"><div class=\"wp-block-embed__wrapper\">\n<iframe title=\"D\u00e2y chuy\u1ec1n s\u1ea3n xu\u1ea5t bao b\u00ec d\u1ebbo Zhongjia\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/GgO-piEsd3s?feature=oembed\" frameborder=\"0\" allow=\"accelerometer; autoplay; clipboard-write; encrypted-media; gyroscope; picture-in-picture; web-share\" referrerpolicy=\"strict-origin-when-cross-origin\" allowfullscreen><\/iframe>\n<\/div><\/figure>\n\n\n\n<p class=\"wp-block-paragraph\">Ready to move from sample testing to bulk production? Contact <strong><a href=\"https:\/\/www.zkprintpack.com\/vi\/about-packaging-manufacturer\/\"><mark style=\"background-color:rgba(0, 0, 0, 0);color:#2f9144\" class=\"has-inline-color\">Zhongjia Bao b\u00ec<\/mark><\/a><\/strong> today to discuss your packaging requirements and request a customized solution for your business.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>","protected":false},"excerpt":{"rendered":"<p>Testing custom packaging samples before bulk production is essential for verifying dimensions, print quality, sealing performance, material suitability, and packaging functionality. Buyers should compare samples against approved specifications, conduct application-based tests, and document acceptance criteria before authorizing mass production. As a water-based ink flexible packaging manufacturer serving 40+ well-known companies in over 20 countries, Zhongjia [&hellip;]<\/p>\n","protected":false},"author":1,"featured_media":3983,"comment_status":"closed","ping_status":"closed","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":"","_members_access_role":[],"_members_access_error":""},"categories":[17],"tags":[28,34],"class_list":["post-3959","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-blogs-news","tag-packaging-production-process","tag-sustainable-packaging-solutions"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.zkprintpack.com\/vi\/wp-json\/wp\/v2\/posts\/3959","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.zkprintpack.com\/vi\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.zkprintpack.com\/vi\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.zkprintpack.com\/vi\/wp-json\/wp\/v2\/users\/1"}],"replies":[{"embeddable":true,"href":"https:\/\/www.zkprintpack.com\/vi\/wp-json\/wp\/v2\/comments?post=3959"}],"version-history":[{"count":8,"href":"https:\/\/www.zkprintpack.com\/vi\/wp-json\/wp\/v2\/posts\/3959\/revisions"}],"predecessor-version":[{"id":3982,"href":"https:\/\/www.zkprintpack.com\/vi\/wp-json\/wp\/v2\/posts\/3959\/revisions\/3982"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.zkprintpack.com\/vi\/wp-json\/wp\/v2\/media\/3983"}],"wp:attachment":[{"href":"https:\/\/www.zkprintpack.com\/vi\/wp-json\/wp\/v2\/media?parent=3959"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.zkprintpack.com\/vi\/wp-json\/wp\/v2\/categories?post=3959"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.zkprintpack.com\/vi\/wp-json\/wp\/v2\/tags?post=3959"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}