{"id":1066,"date":"2025-12-12T01:10:36","date_gmt":"2025-12-12T01:10:36","guid":{"rendered":"https:\/\/www.materialstests.com\/?p=1066"},"modified":"2025-12-12T01:10:39","modified_gmt":"2025-12-12T01:10:39","slug":"difference-between-hot-tack-and-seal-strength","status":"publish","type":"post","link":"https:\/\/www.materialstests.com\/cs\/news\/difference-between-hot-tack-and-seal-strength.html","title":{"rendered":"Rozd\u00edl mezi pevnost\u00ed za tepla a pevnost\u00ed t\u011bsn\u011bn\u00ed"},"content":{"rendered":"

\u00davod<\/h2>\n\n\n\n

V oblasti testov\u00e1n\u00ed obalov\u00fdch materi\u00e1l\u016f je z\u00e1sadn\u00ed porozum\u011bt vlastnostem a v\u00fdkonnosti t\u011bsn\u011bn\u00ed. Dva \u010dasto diskutovan\u00e9 kritick\u00e9 parametry jsou p\u0159ilnavost za tepla a pevnost t\u011bsn\u011bn\u00ed. A\u010dkoli se mohou zd\u00e1t podobn\u00e9, li\u0161\u00ed se sv\u00fdm pou\u017eit\u00edm a poznatky, kter\u00e9 poskytuj\u00ed o v\u00fdkonnosti obalov\u00fdch materi\u00e1l\u016f. Tento \u010dl\u00e1nek se zab\u00fdv\u00e1 rozd\u00edly mezi lepivost\u00ed za tepla a pevnost\u00ed t\u011bsn\u011bn\u00ed s odkazem na normy ASTM F1921 a F2029 a zd\u016fraz\u0148uje v\u00fdhody pou\u017eit\u00ed testeru lepivosti za tepla Cell Instruments pro p\u0159esn\u00e9 a spolehliv\u00e9 testov\u00e1n\u00ed.<\/p>\n\n\n\n

Co je Hot Tack?<\/h2>\n\n\n\n

Hot tack<\/strong><\/a> ozna\u010duje schopnost tepeln\u011b ut\u011bsn\u011bn\u00e9ho spoje odolat tahov\u00e9 s\u00edle je\u0161t\u011b za tepla, bezprost\u0159edn\u011b po ut\u011bsn\u011bn\u00ed. Tato vlastnost je rozhoduj\u00edc\u00ed p\u0159i vysokorychlostn\u00edm balen\u00ed, kdy jsou zataven\u00e9 obaly vystaveny nam\u00e1h\u00e1n\u00ed d\u0159\u00edve, ne\u017e vychladnou a vyvinou plnou pevnost t\u011bsn\u011bn\u00ed. Zkou\u0161ka p\u0159ilnavosti za tepla m\u011b\u0159\u00ed okam\u017eitou p\u0159\u00eddr\u017enou s\u00edlu t\u011bsn\u011bn\u00ed a pom\u00e1h\u00e1 p\u0159i optimalizaci balic\u00edch proces\u016f, aby se zabr\u00e1nilo p\u0159ed\u010dasn\u00e9mu otev\u0159en\u00ed t\u011bsn\u011bn\u00ed.<\/p>\n\n\n\n

Co je to pevnost t\u011bsn\u011bn\u00ed?<\/h2>\n\n\n\n

Pevnost t\u011bsn\u011bn\u00ed<\/strong><\/a>, na druh\u00e9 stran\u011b m\u011b\u0159\u00ed maxim\u00e1ln\u00ed s\u00edlu pot\u0159ebnou k odd\u011blen\u00ed ut\u011bsn\u011bn\u00e9ho spoje po jeho ochlazen\u00ed na pokojovou teplotu. Tento parametr hodnot\u00ed dlouhodobou integritu t\u011bsn\u011bn\u00ed za r\u016fzn\u00fdch podm\u00ednek a zaji\u0161\u0165uje, \u017ee obal vydr\u017e\u00ed manipulaci, p\u0159epravu a skladov\u00e1n\u00ed, ani\u017e by byl ohro\u017een obsah.<\/p>\n\n\n\n

Normy ASTM pro pevnost v tahu za tepla a pevnost t\u011bsn\u011bn\u00ed<\/h2>\n\n\n\n

ASTM F1921 a ASTM F2029 jsou z\u00e1kladn\u00ed normy, kter\u00e9 popisuj\u00ed postupy pro zkou\u0161en\u00ed pevnosti za tepla a pevnosti t\u011bsn\u011bn\u00ed.<\/p>\n\n\n\n

ASTM F1921<\/strong>: Tato norma poskytuje pokyny pro stanoven\u00ed s\u00edly lepivosti za tepla u tepeln\u00fdch t\u011bsn\u011bn\u00ed pomoc\u00ed zkou\u0161e\u010dky lepivosti za tepla. Specifikuje zku\u0161ebn\u00ed metoda<\/a>, v\u010detn\u011b p\u0159\u00edpravy zku\u0161ebn\u00edch vzork\u016f, procesu ut\u011bs\u0148ov\u00e1n\u00ed a m\u011b\u0159en\u00ed s\u00edly lepen\u00ed za tepla.<\/p>\n\n\n\n

ASTM F2029<\/strong>: Tato norma popisuje metodiku m\u011b\u0159en\u00ed t\u011bsnosti pru\u017en\u00fdch bari\u00e9rov\u00fdch materi\u00e1l\u016f. Obsahuje podrobnosti o p\u0159\u00edprav\u011b vzork\u016f, procesu t\u011bsn\u011bn\u00ed a podm\u00ednk\u00e1ch, za kter\u00fdch se m\u011b\u0159\u00ed pevnost t\u011bsn\u011bn\u00ed.<\/p>\n\n\n\n

Hlavn\u00ed rozd\u00edly mezi pevnost\u00ed za tepla a pevnost\u00ed t\u011bsn\u011bn\u00ed<\/h2>\n\n\n\n
\"Rozd\u00edl<\/figure>\n\n\n\n

Na\u010dasov\u00e1n\u00ed m\u011b\u0159en\u00ed:<\/h3>\n\n\n\n

Hork\u00e1 stopa: M\u011b\u0159eno bezprost\u0159edn\u011b po procesu tmelen\u00ed, dokud je materi\u00e1l je\u0161t\u011b hork\u00fd.
Pevnost t\u011bsn\u011bn\u00ed: M\u011b\u0159eno po ochlazen\u00ed ut\u011bsn\u011bn\u00e9ho materi\u00e1lu na pokojovou teplotu.<\/p>\n\n\n\n

Zam\u011b\u0159en\u00ed aplikace:<\/h3>\n\n\n\n

Hork\u00e1 stopa: V p\u0159\u00edpad\u011b vysokorychlostn\u00edch balic\u00edch operac\u00ed, kde je t\u0159eba, aby t\u011bsn\u011bn\u00ed dr\u017eelo ihned po vytvo\u0159en\u00ed.
Pevnost t\u011bsn\u011bn\u00ed: D\u016fle\u017eit\u00e9 pro posouzen\u00ed dlouhodob\u00e9 \u017eivotnosti a spolehlivosti t\u011bsn\u011bn\u00ed.<\/p>\n\n\n\n

Podm\u00ednky testov\u00e1n\u00ed:<\/h3>\n\n\n\n

Hork\u00e1 stopa: Zahrnuje okam\u017eit\u00e9 testov\u00e1n\u00ed po ut\u011bsn\u011bn\u00ed, \u010dasto b\u011bhem milisekund.
Pevnost t\u011bsn\u011bn\u00ed: Zkou\u0161\u00ed se po ochlazen\u00ed a \u00faprav\u011b.<\/p>\n\n\n\n

Pro\u010d si vybrat tester Cell Instruments\u2019 Hot Tack Tester?<\/h2>\n\n\n\n

Cell Instruments<\/strong><\/a>\u2018 Zkou\u0161e\u010dka lepivosti za horka je navr\u017eena tak, aby poskytovala p\u0159esn\u00e1 a spolehliv\u00e1 m\u011b\u0159en\u00ed pevnosti za horka a zaji\u0161\u0165ovala, \u017ee obalov\u00e9 materi\u00e1ly spl\u0148uj\u00ed p\u0159\u00edsn\u00e9 po\u017eadavky vysokorychlostn\u00edho v\u00fdrobn\u00edho prost\u0159ed\u00ed. Na\u0161e p\u0159\u00edstroje nab\u00edzej\u00ed n\u00e1sleduj\u00edc\u00ed v\u00fdhody:<\/p>\n\n\n\n

P\u0159esnost<\/strong>: Pokro\u010dil\u00e9 senzory a p\u0159esn\u00e9 kontroln\u00ed mechanismy zaji\u0161\u0165uj\u00ed p\u0159esn\u00e9 m\u011b\u0159en\u00ed s\u00edly lepen\u00ed za tepla.
V\u0161estrannost<\/strong>: Vhodn\u00e9 pro \u0161irokou \u0161k\u00e1lu materi\u00e1l\u016f, v\u010detn\u011b f\u00f3li\u00ed, lamin\u00e1t\u016f a f\u00f3li\u00ed.
Snadn\u00e9 pou\u017e\u00edv\u00e1n\u00ed<\/strong>: U\u017eivatelsky p\u0159\u00edv\u011btiv\u00e9 rozhran\u00ed a robustn\u00ed konstrukce usnad\u0148uj\u00ed obsluhu a \u00fadr\u017ebu.
P\u0159izp\u016fsoben\u00ed<\/strong>: Nab\u00edz\u00edme \u0159e\u0161en\u00ed na m\u00edru, kter\u00e1 spl\u0148uj\u00ed specifick\u00e9 po\u017eadavky na testov\u00e1n\u00ed a pr\u016fmyslov\u00e9 normy.<\/p>\n\n\n\n

Z\u00e1v\u011br<\/h2>\n\n\n\n

Pochopen\u00ed rozd\u00edlu mezi lepivost za tepla a pevnost t\u011bsn\u011bn\u00ed<\/strong><\/a> je z\u00e1sadn\u00ed pro optimalizaci obalov\u00fdch materi\u00e1l\u016f a proces\u016f. P\u0159ilnavost za tepla poskytuje informace o okam\u017eit\u00e9 p\u0159\u00eddr\u017en\u00e9 s\u00edle t\u011bsn\u011bn\u00ed p\u0159i vysokorychlostn\u00edch operac\u00edch, zat\u00edmco pevnost t\u011bsn\u011bn\u00ed hodnot\u00ed dlouhodobou integritu t\u011bsn\u011bn\u00ed. Dodr\u017eov\u00e1n\u00edm norem ASTM F1921 a F2029 mohou v\u00fdrobci zajistit, aby jejich obalov\u00e9 materi\u00e1ly spl\u0148ovaly pr\u016fmyslov\u00e9 po\u017eadavky.<\/p>\n\n\n\n

Pro p\u0159esn\u00e9 a spolehliv\u00e9 testov\u00e1n\u00ed je vynikaj\u00edc\u00ed volbou tester lepivosti za tepla Cell Instruments, kter\u00fd poskytuje p\u0159esnost a v\u0161estrannost pot\u0159ebnou pro r\u016fzn\u00e9 materi\u00e1ly a aplikace.<\/p>\n\n\n\n

\u010cASTO KLADEN\u00c9 DOTAZY<\/h2>\n\n\n\n

K \u010demu slou\u017e\u00ed zkou\u0161e\u010dka lepivosti za tepla?<\/strong><\/p>\n\n\n\n

Zkou\u0161e\u010dka lepivosti za tepla m\u011b\u0159\u00ed okam\u017eitou p\u0159\u00eddr\u017enou s\u00edlu tepeln\u011b zataven\u00e9ho spoje je\u0161t\u011b za tepla, \u010d\u00edm\u017e zaji\u0161\u0165uje, \u017ee t\u011bsn\u011bn\u00ed vydr\u017e\u00ed nam\u00e1h\u00e1n\u00ed p\u0159i vysokorychlostn\u00edch balic\u00edch operac\u00edch.<\/p>\n\n\n\n

Jak se li\u0161\u00ed lepen\u00ed za tepla od pevnosti tmelu?<\/strong><\/p>\n\n\n\n

P\u0159ilnavost za tepla se m\u011b\u0159\u00ed bezprost\u0159edn\u011b po ut\u011bsn\u011bn\u00ed, kdy\u017e je materi\u00e1l hork\u00fd, zat\u00edmco pevnost ut\u011bsn\u011bn\u00ed se m\u011b\u0159\u00ed po ochlazen\u00ed materi\u00e1lu na pokojovou teplotu.<\/p>\n\n\n\n

Pro\u010d je v obalech d\u016fle\u017eit\u00e1 hork\u00e1 lepic\u00ed p\u00e1ska?<\/strong><\/p>\n\n\n\n

Lepen\u00ed za horka m\u00e1 z\u00e1sadn\u00ed v\u00fdznam pro vysokorychlostn\u00ed balic\u00ed linky, kde mus\u00ed t\u011bsn\u011bn\u00ed dr\u017eet ihned po vytvo\u0159en\u00ed, aby se zabr\u00e1nilo p\u0159ed\u010dasn\u00e9mu otev\u0159en\u00ed a zajistila se neporu\u0161enost obalu.<\/p>\n\n\n\n

Jak\u00e9 normy upravuj\u00ed zkou\u0161en\u00ed pevnosti lepen\u00ed za tepla a pevnosti t\u011bsn\u011bn\u00ed?<\/strong><\/p>\n\n\n\n

Norma ASTM F1921 upravuje zkou\u0161en\u00ed lepivosti za tepla a norma ASTM F2029 popisuje postupy pro m\u011b\u0159en\u00ed pevnosti t\u011bsn\u011bn\u00ed pru\u017en\u00fdch bari\u00e9rov\u00fdch materi\u00e1l\u016f.<\/p>\n\n\n\n

Lze tester lepivosti Cell Instruments\u2019 p\u0159izp\u016fsobit?<\/strong><\/p>\n\n\n\n

Ano, Cell Instruments nab\u00edz\u00ed \u0159e\u0161en\u00ed na m\u00edru, kter\u00e1 spl\u0148uj\u00ed specifick\u00e9 po\u017eadavky na testov\u00e1n\u00ed a pr\u016fmyslov\u00e9 normy, a poskytuje tak v\u0161estrannost a p\u0159esnost pro r\u016fzn\u00e9 materi\u00e1ly a aplikace.<\/p>\n\n\n\n

\"{hot<\/a><\/figure>\n\n\n\n

Pokud m\u00e1te z\u00e1jem o dal\u0161\u00ed informace o tomto produktu, nev\u00e1hejte n\u00e1s kontaktovat. Doporu\u010dujeme v\u00e1m dal\u0161\u00ed obl\u00edben\u00e9 produkty: Tester tlou\u0161\u0165ky tk\u00e1n\u011b<\/a>, Testov\u00e1n\u00ed p\u0159ilnavosti<\/a>, Za\u0159\u00edzen\u00ed pro testov\u00e1n\u00ed hrub\u00fdch \u00fanik\u016f<\/a>, V\u00fdrobce gradientn\u00edho tepeln\u00e9ho t\u011bsn\u011bn\u00ed<\/a>, Tester tepeln\u00e9ho sp\u00e1du<\/a>, tester smr\u0161\u0165ovac\u00ed f\u00f3lie<\/a>, tester smr\u0161\u0165ov\u00e1n\u00ed bez f\u00f3lie<\/a>, Tester gradientn\u00edho tepeln\u00e9ho t\u011bsn\u011bn\u00ed<\/a>, Kombinovan\u00e1 zkou\u0161e\u010dka s\u00edly otev\u0159en\u00ed v\u00ed\u010dka z hlin\u00edku a plastu<\/a>, Tester t\u0159ec\u00ed s\u00edly mopu<\/a>, zkou\u0161ka s\u00edly p\u0159etr\u017een\u00ed ampule<\/a>, tov\u00e1rny na testov\u00e1n\u00ed tepeln\u00e9ho t\u011bsn\u011bn\u00ed<\/a>, tov\u00e1rny na testov\u00e1n\u00ed tepeln\u00e9ho t\u011bsn\u011bn\u00ed<\/a>, \u0158e\u0161en\u00ed pro testov\u00e1n\u00ed zdravotnick\u00fdch obal\u016f<\/a>, \u0158e\u0161en\u00ed pro testov\u00e1n\u00ed t\u011bsnosti a t\u011bsnosti<\/a>, V\u00fdrobce motorizovan\u00e9ho testeru kroutic\u00edho momentu<\/a>, Tester tlou\u0161\u0165ky tk\u00e1n\u011b v\u00fdrobce<\/a>, Tester tlou\u0161\u0165ky tk\u00e1n\u011b dodavatel<\/a><\/p>","protected":false},"excerpt":{"rendered":"

Introduction In the realm of packaging materials testing, understanding the properties and performance of seals is crucial. Two critical parameters often discussed are hot tack and seal strength. While they may seem similar, they are distinct in their applications and the insights they provide into the performance of packaging materials. This article delves into the […]<\/p>","protected":false},"author":2,"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-1066","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.materialstests.com\/cs\/wp-json\/wp\/v2\/posts\/1066","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\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.materialstests.com\/cs\/wp-json\/wp\/v2\/comments?post=1066"}],"version-history":[{"count":0,"href":"https:\/\/www.materialstests.com\/cs\/wp-json\/wp\/v2\/posts\/1066\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.materialstests.com\/cs\/wp-json\/wp\/v2\/media?parent=1066"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.materialstests.com\/cs\/wp-json\/wp\/v2\/categories?post=1066"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.materialstests.com\/cs\/wp-json\/wp\/v2\/tags?post=1066"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}