{"id":722,"date":"2025-12-11T07:53:43","date_gmt":"2025-12-11T07:53:43","guid":{"rendered":"https:\/\/www.materialstests.com\/?p=722"},"modified":"2025-12-11T07:53:47","modified_gmt":"2025-12-11T07:53:47","slug":"leading-the-way-in-hot-tack-testing-with-astm-f1921-standards","status":"publish","type":"post","link":"https:\/\/www.materialstests.com\/cs\/news\/leading-the-way-in-hot-tack-testing-with-astm-f1921-standards.html","title":{"rendered":"Vedouc\u00ed postaven\u00ed v oblasti testov\u00e1n\u00ed za horka s normami ASTM F1921"},"content":{"rendered":"
Spole\u010dnost Cell Instruments, inov\u00e1tor v oblasti \u0159e\u0161en\u00ed pro testov\u00e1n\u00ed materi\u00e1l\u016f, hrd\u011b oznamuje sv\u016fj z\u00e1vazek k dokonalosti v oblasti testov\u00e1n\u00ed lepivosti za tepla p\u0159ijet\u00edm norem ASTM F1921. To p\u0159edstavuje v\u00fdznamn\u00fd krok v zaji\u0161t\u011bn\u00ed spolehlivosti a integrity obal\u016f, zejm\u00e9na v rychl\u00fdch v\u00fdrobn\u00edch link\u00e1ch.<\/p>\n\n\n\n
Porozum\u011bn\u00ed norm\u011b ASTM F1921 Zkou\u0161ka p\u0159ilnavosti za tepla:<\/strong><\/h2>\n\n\n\n
Norma ASTM F1921 se zam\u011b\u0159uje na hodnocen\u00ed pevnosti tepeln\u00fdch t\u011bsn\u011bn\u00ed vytvo\u0159en\u00fdch mezi termoplastick\u00fdmi povrchy na pru\u017en\u00fdch p\u00e1sc\u00edch. Toto hodnocen\u00ed prob\u00edh\u00e1 bezprost\u0159edn\u011b po vytvo\u0159en\u00ed t\u011bsn\u011bn\u00ed, p\u0159i\u010dem\u017e se zd\u016fraz\u0148uje jeho v\u00fdznam p\u0159ed ochlazen\u00edm na pokojovou teplotu.<\/p>\n\n\n\n
V\u00fdznam v obalech VFFS (Vertical Form-Fill-Seal):<\/strong><\/h2>\n\n\n\n<\/figure>\n\n\n\n
Vlastnost lepivosti za horka nab\u00fdv\u00e1 na v\u00fdznamu v procesech balen\u00ed s vertik\u00e1ln\u00edm tvarov\u00e1n\u00edm a uzav\u00edr\u00e1n\u00edm (VFFS), kde je k dispozici minim\u00e1ln\u00ed doba chlazen\u00ed. P\u0159i balen\u00ed VFFS se v\u00fdrobky rychle ukl\u00e1daj\u00ed do s\u00e1\u010dku ihned po otev\u0159en\u00ed t\u011bsnic\u00edch ty\u010d\u00ed. Schopnost hork\u00e9ho t\u011bsn\u011bn\u00ed vydr\u017eet zna\u010dn\u00e9 zat\u00ed\u017een\u00ed se st\u00e1v\u00e1 kritickou, co\u017e zaji\u0161\u0165uje jeho pevnost a bezpe\u010dnost. To je nezbytn\u011b nutn\u00e9, aby se p\u0159ede\u0161lo mo\u017en\u00e9mu rozlit\u00ed v\u00fdrobku nebo selh\u00e1n\u00ed obalu. Posouzen\u00ed a optimalizace vlastnost\u00ed hork\u00e9 pe\u010deti je proto kl\u00ed\u010dov\u00fdm krokem k zachov\u00e1n\u00ed spolehlivosti a integrity balen\u00ed ve vysokorychlostn\u00edch v\u00fdrobn\u00edch link\u00e1ch.<\/p>\n\n\n\n
Zku\u0161ebn\u00ed postup podle normy ASTM F1921 pro zkou\u0161ku p\u0159ilnavosti za tepla:<\/strong><\/h2>\n\n\n\n<\/figure>\n\n\n\n
Prou\u017eek vzorku se zatav\u00ed tlakem pomoc\u00ed dvou ploch\u00fdch vyh\u0159\u00edvan\u00fdch \u010delist\u00ed, p\u0159i\u010dem\u017e se dodr\u017euj\u00ed specifick\u00e9 podm\u00ednky teploty, doby kontaktu a tlaku.<\/p>\n\n\n\n
Jakmile se \u010delisti t\u011bsnic\u00ed jednotky otev\u0159ou, ut\u011bsn\u011bn\u00fd p\u00e1sek se automaticky vysune mezi \u010delisti a vysune se po uplynut\u00ed definovan\u00e9 doby zpo\u017ed\u011bn\u00ed, kterou lze nastavit, a to i na nulu. K vyjmut\u00ed doch\u00e1z\u00ed zasunut\u00edm rukojet\u00ed.<\/p>\n\n\n\n<\/figure>\n\n\n\n
Jak se uchopova\u010de pohybuj\u00ed od sebe p\u0159edem stanovenou rychlost\u00ed, doch\u00e1z\u00ed k prodlu\u017eov\u00e1n\u00ed zataven\u00e9ho vzorku, a\u017e nakonec dojde k jeho poru\u0161en\u00ed. B\u011bhem tohoto procesu prodlu\u017eov\u00e1n\u00ed m\u011b\u0159\u00ed tester lepivosti za tepla s\u00edlu pot\u0159ebnou k udr\u017een\u00ed t\u011bsn\u011bn\u00ed, dokud nedos\u00e1hne bodu poru\u0161en\u00ed.<\/p>\n\n\n\n
P\u0159esn\u00e9 a spolehliv\u00e9 testov\u00e1n\u00ed podle normy ASTM F1921 s testerem Cell Instruments\u2019 HTT-02 Hot Tack Tester:<\/strong><\/h2>\n\n\n\n<\/figure>\n\n\n\n
Firm\u00e1m, kter\u00e9 hledaj\u00ed p\u0159esnost a spolehlivost p\u0159i zkou\u0161en\u00ed lepivosti za tepla, doporu\u010dujeme tester Cell Instruments HTT-02, kter\u00fd poskytuje komplexn\u00ed \u0159e\u0161en\u00ed pro hodnocen\u00ed a optimalizaci lepivosti za tepla u termoplastick\u00fdch povrch\u016f.<\/p>\n\n\n\n
Z\u016fsta\u0148te v obalov\u00e9m pr\u016fmyslu na \u0161pici s Cell Instruments - va\u0161\u00edm d\u016fv\u011bryhodn\u00fdm partnerem pro inovativn\u00ed \u0159e\u0161en\u00ed testov\u00e1n\u00ed materi\u00e1l\u016f v souladu s normami.<\/p>","protected":false},"excerpt":{"rendered":"
Cell Instruments, an innovator in materials testing solutions, proudly announces its commitment to excellence in hot tack testing with the adoption of the ASTM F1921 standards. This marks a significant stride in ensuring the reliability and integrity of packaging, particularly in fast-paced production lines. Understanding ASTM F1921 Hot Tack Testing: The ASTM F1921 standard focuses […]<\/p>","protected":false},"author":3,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-722","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.materialstests.com\/cs\/wp-json\/wp\/v2\/posts\/722","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.materialstests.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.materialstests.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.materialstests.com\/cs\/wp-json\/wp\/v2\/users\/3"}],"replies":[{"embeddable":true,"href":"https:\/\/www.materialstests.com\/cs\/wp-json\/wp\/v2\/comments?post=722"}],"version-history":[{"count":0,"href":"https:\/\/www.materialstests.com\/cs\/wp-json\/wp\/v2\/posts\/722\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.materialstests.com\/cs\/wp-json\/wp\/v2\/media?parent=722"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.materialstests.com\/cs\/wp-json\/wp\/v2\/categories?post=722"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.materialstests.com\/cs\/wp-json\/wp\/v2\/tags?post=722"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}
![\"Vedouc\u00ed](\"https:\/\/www.materialstests.com\/wp-content\/uploads\/2025\/12\/Leading-the-Way-in-Hot-Tack-Testing-with-ASTM-F1921-Standards.png\" "\\"Vedouc\u00ed")
<\/figure>\n\n\n\n![\"Vedouc\u00ed](\"https:\/\/www.materialstests.com\/wp-content\/uploads\/2025\/12\/Leading-the-Way-in-Hot-Tack-Testing-with-ASTM-F1921-Standards2.png\" "\\"Vedouc\u00ed")
<\/figure>\n\n\n\n![\"Vedouc\u00ed](\"https:\/\/www.materialstests.com\/wp-content\/uploads\/2025\/12\/Leading-the-Way-in-Hot-Tack-Testing-with-ASTM-F1921-Standards3.jpg\" "\\"Vedouc\u00ed")
<\/figure>\n\n\n\n![\"Vedouc\u00ed](\"https:\/\/www.materialstests.com\/wp-content\/uploads\/2025\/12\/Leading-the-Way-in-Hot-Tack-Testing-with-ASTM-F1921-Standards4.png\" "\\"Vedouc\u00ed")
<\/figure>\n\n\n\n