{"id":10317,"date":"2026-05-12T13:50:26","date_gmt":"2026-05-12T05:50:26","guid":{"rendered":"https:\/\/www.packqc.com\/?post_type=standard&#038;p=10317"},"modified":"2026-05-12T13:50:27","modified_gmt":"2026-05-12T05:50:27","slug":"astm-f1921","status":"publish","type":"standard","link":"https:\/\/www.packqc.com\/sk\/standard\/astm-f1921\/","title":{"rendered":"ASTM F1921"},"content":{"rendered":"<h2 class=\"wp-block-heading\">\u010co je ASTM F1921 a pre\u010do je d\u00f4le\u017eit\u00e1<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>ASTM F1921<\/strong> definuje \u0161tandardizovan\u00e9 postupy na meranie <strong>pevnos\u0165 termoplastick\u00fdch materi\u00e1lov pri lepen\u00ed za tepla<\/strong> bezprostredne po tepelnom zataven\u00ed a pred vychladnut\u00edm. Tento parameter je kritick\u00fd v prostred\u00ed vysokor\u00fdchlostn\u00e9ho balenia, najm\u00e4 <strong>Form-fill-seal (FFS)<\/strong> procesy, pri ktor\u00fdch musia tesnenia odol\u00e1va\u0165 nam\u00e1haniu e\u0161te za tepla.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\">Na rozdiel od be\u017en\u00fdch sk\u00fa\u0161ok pevnosti tesnenia sa v norme ASTM F1921 hodnot\u00ed <strong>integrita tesnenia v re\u00e1lnom \u010dase vo v\u00fdrobn\u00fdch podmienkach<\/strong>, \u010do pom\u00e1ha v\u00fdrobcom predch\u00e1dza\u0165 zlyhaniu tesnenia, \u00faniku a strate v\u00fdrobku.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>K\u013e\u00fa\u010dov\u00e1 hodnota:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Simuluje skuto\u010dn\u00e9 podmienky balenia<\/li>\n\n\n\n<li>Hodnot\u00ed v\u00fdkonnos\u0165 tesnenia po\u010das kritickej f\u00e1zy chladenia<\/li>\n\n\n\n<li>Podporuje v\u00fdber materi\u00e1lu a optimaliz\u00e1ciu procesov<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Sk\u00fa\u0161ka hor\u00facim lepidlom: Princ\u00edpy a priemyseln\u00fd v\u00fdznam<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">The <strong>sk\u00fa\u0161ka lepivosti za tepla<\/strong> meria silu potrebn\u00fa na oddelenie dvoch utesnen\u00fdch termoplastick\u00fdch povrchov bezprostredne po utesnen\u00ed. Po\u010das sk\u00fa\u0161ky:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Dva filmov\u00e9 p\u00e1sy s\u00fa zape\u010daten\u00e9 pod kontrolovan\u00fdm <strong>teplota, tlak a \u010das zdr\u017eania<\/strong><\/li>\n\n\n\n<li>Tesnenie sa roz\u0165ahuje definovanou r\u00fdchlos\u0165ou<\/li>\n\n\n\n<li>The <strong>maxim\u00e1lna sila pri odde\u013eovan\u00ed<\/strong> sa zaznamen\u00e1va ako pevnos\u0165 pri\u013enavosti za tepla<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Pre\u010do je to d\u00f4le\u017eit\u00e9 pri balen\u00ed filmov:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Zabra\u0148uje zlyhaniu tesnenia po\u010das plnenia a prepravy<\/li>\n\n\n\n<li>Zabezpe\u010duje konzistentn\u00fa kvalitu tesnenia vo vysokor\u00fdchlostn\u00fdch link\u00e1ch<\/li>\n\n\n\n<li>Podporuje optimaliz\u00e1ciu parametrov tesnenia<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\">Odvetvia, ako s\u00fa potravin\u00e1rsky, farmaceutick\u00fd a lek\u00e1rsky priemysel, sa pri zachovan\u00ed bezpe\u010dnosti a zhody v\u00fdrobkov vo ve\u013ekej miere spoliehaj\u00fa na presn\u00e9 vyhodnotenie lepivosti za tepla.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Met\u00f3da testovania pri\u013enavosti za tepla pre obalov\u00e9 f\u00f3lie<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Norma ASTM F1921 stanovuje <strong>dve odli\u0161n\u00e9 testovacie met\u00f3dy<\/strong>, z ktor\u00fdch ka\u017ed\u00e1 je vhodn\u00e1 na in\u00e9 analytick\u00e9 ciele:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">Met\u00f3da A (pevn\u00e9 oneskorenie)<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Meria pevnos\u0165 za tepla pri <strong>\u0161pecifick\u00e9 \u010dasy chladenia<\/strong><\/li>\n\n\n\n<li>Generuje <strong>krivka chladnutia pevnosti tesnenia v z\u00e1vislosti od \u010dasu<\/strong><\/li>\n\n\n\n<li>Typick\u00e1 r\u00fdchlos\u0165 separ\u00e1cie: <strong>200 mm\/min<\/strong><\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Najlep\u0161ie pre:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u0160t\u00fadium v\u00fdvoja pevnosti tesnenia<\/li>\n\n\n\n<li>Porovnanie spr\u00e1vania sa materi\u00e1lu pri chladen\u00ed<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Met\u00f3da B (premenliv\u00e9 oneskorenie)<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Opatrenia <strong>maxim\u00e1lna sila po definovanom oneskoren\u00ed<\/strong><\/li>\n\n\n\n<li>Zameriava sa na maxim\u00e1lny v\u00fdkon v konkr\u00e9tnom okamihu<\/li>\n\n\n\n<li>Vhodn\u00e9 pre vysokor\u00fdchlostn\u00e9 testovacie syst\u00e9my<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Najlep\u0161ie pre:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>R\u00fdchla kontrola kvality<\/li>\n\n\n\n<li>Simul\u00e1cia v\u00fdrobnej linky<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Ako mera\u0165 pevnos\u0165 za tepla<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Ak chcete presne ur\u010di\u0165 pevnos\u0165 za tepla pod\u013ea normy ASTM F1921, postupujte pod\u013ea t\u00fdchto \u0161trukt\u00farovan\u00fdch krokov:<\/p>\n\n\n\n<h3 class=\"wp-block-heading\">1. Nastavenie parametrov tesnenia<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>teplota:<\/strong> Postupn\u00e9 kroky (zvy\u010dajne 5-10 \u00b0C)<\/li>\n\n\n\n<li><strong>tlak:<\/strong> 15-30 N\/cm\u00b2<\/li>\n\n\n\n<li><strong>\u010cas zdr\u017eania:<\/strong>\n<ul class=\"wp-block-list\">\n<li>Filmy \u226425 \u03bcm: 0,5 s<\/li>\n\n\n\n<li>25-64 \u03bcm filmy: 1,0 s<\/li>\n\n\n\n<li>64 \u03bcm filmy: 2,5 s<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">2. Pr\u00edprava vzoriek<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Pou\u017e\u00edvanie jednotn\u00fdch p\u00e1sov f\u00f3lie<\/li>\n\n\n\n<li>Zabezpe\u010dte spr\u00e1vne zarovnanie a orient\u00e1ciu tesniaceho povrchu<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">3. Vykonanie testovacieho cyklu<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Pr\u00edstroj automaticky vykon\u00e1va:\n<ul class=\"wp-block-list\">\n<li>Utesnenie<\/li>\n\n\n\n<li>Oneskorenie<\/li>\n\n\n\n<li>Oddelenie \u00fachopu<\/li>\n\n\n\n<li>Meranie sily<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">4. Zaznamen\u00e1vanie a anal\u00fdza \u00fadajov<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Zachytenie <strong>maxim\u00e1lna sila alebo sila z\u00e1visl\u00e1 od \u010dasu<\/strong><\/li>\n\n\n\n<li>Pozemok <strong>krivka z\u00e1vislosti lepivosti od teploty<\/strong><\/li>\n\n\n\n<li>Vyhodno\u0165te <strong>sp\u00f4soby por\u00fach<\/strong>vr\u00e1tane:\n<ul class=\"wp-block-list\">\n<li>Zlyhanie lepidla<\/li>\n\n\n\n<li>Zlyhanie s\u00fadr\u017enosti<\/li>\n\n\n\n<li>Odlupovanie<\/li>\n\n\n\n<li>Preru\u0161enie materi\u00e1lu<\/li>\n<\/ul>\n<\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">5. Opakujte a overte<\/h3>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Vykonajte aspo\u0148 <strong>tri opakovania<\/strong><\/li>\n\n\n\n<li>Vypo\u010d\u00edtajte priemer a \u0161tandardn\u00fa odch\u00fdlku<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Hot Tack Tester: Zariadenia a krit\u00e9ri\u00e1 v\u00fdberu<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Spo\u013eahliv\u00fd <strong>tester hor\u00facich lepidiel<\/strong> je nevyhnutn\u00fd pre presn\u00e9 testovanie pod\u013ea normy ASTM F1921. Pokro\u010dil\u00e9 syst\u00e9my poskytuj\u00fa:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Presn\u00e1 regul\u00e1cia teploty (syst\u00e9m PID)<\/strong><\/li>\n\n\n\n<li><strong>Programovate\u013en\u00fd \u010das zdr\u017eania a tlak<\/strong><\/li>\n\n\n\n<li><strong>Automatizovan\u00e9 testovacie cykly<\/strong><\/li>\n\n\n\n<li><strong>Meranie sily s vysok\u00fdm rozl\u00ed\u0161en\u00edm<\/strong><\/li>\n<\/ul>\n\n\n\n<h3 class=\"wp-block-heading\">Odpor\u00fa\u010dan\u00e9 rie\u0161enie: Cell Instruments Hot Tack Tester<\/h3>\n\n\n\n<p class=\"wp-block-paragraph\"><a href=\"https:\/\/www.packqc.com\/sk\/\" target=\"_blank\" rel=\"noreferrer noopener\">Cell Instruments<\/a> pon\u00faka \u0161pecializovan\u00e9 rie\u0161enia navrhnut\u00e9 na dodr\u017eiavanie normy ASTM F1921:<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><a href=\"https:\/\/www.packqc.com\/sk\/products\/sale-astm-f1921-hot-tack-tester-plastic-film\/\" target=\"_blank\" rel=\"noreferrer noopener\">HTT-02 Hot Tack Tester<\/a><\/strong> <strong>V\u00fdhody:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Podporuje <strong>Met\u00f3da A a met\u00f3da B<\/strong><\/li>\n\n\n\n<li>Vysokor\u00fdchlostn\u00e9 testovanie a\u017e do <strong>12000 mm\/min<\/strong><\/li>\n\n\n\n<li>Presn\u00e1 regul\u00e1cia teploty (\u00b10,2 \u00b0C)<\/li>\n\n\n\n<li>Automatiz\u00e1cia na b\u00e1ze PLC pre opakovate\u013enos\u0165<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong><a href=\"https:\/\/www.packqc.com\/sk\/products\/htt-01-hot-tack-tester\/\" target=\"_blank\" rel=\"noreferrer noopener\">HTT-01 Hot Tack Tester<\/a><\/strong> <strong>Najd\u00f4le\u017eitej\u0161ie inform\u00e1cie:<\/strong><\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Multifunk\u010dn\u00e9: lepenie za tepla, tepeln\u00e9 tesnenie, odlupovanie, \u0165ahanie<\/li>\n\n\n\n<li>Flexibiln\u00fd rozsah r\u00fdchlost\u00ed pre aplik\u00e1cie v\u00fdskumu a v\u00fdvoja<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>In\u017einierska perspekt\u00edva:<\/strong><br>V\u00fdber spr\u00e1vneho testera z\u00e1vis\u00ed od toho, \u010di je va\u0161ou prioritou <strong>simul\u00e1cia procesov (HTT-02)<\/strong> alebo <strong>univerz\u00e1lnos\u0165 viacer\u00fdch testov (HTT-01)<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">K\u013e\u00fa\u010dov\u00e9 faktory ovplyv\u0148uj\u00face v\u00fdsledky ASTM F1921<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\">Pochopenie premenn\u00fdch zlep\u0161uje spo\u013eahlivos\u0165 testu a interpret\u00e1ciu \u00fadajov:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Teplota tesnenia:<\/strong> Ur\u010duje za\u010diatok a pevnos\u0165 tesnenia<\/li>\n\n\n\n<li><strong>\u010cas chladenia:<\/strong> Kritick\u00e9 pri anal\u00fdze met\u00f3dou A<\/li>\n\n\n\n<li><strong>\u0160trukt\u00fara materi\u00e1lu:<\/strong> Viacvrstvov\u00e9 filmy sa spr\u00e1vaj\u00fa odli\u0161ne<\/li>\n\n\n\n<li><strong>Sp\u00f4sob poruchy:<\/strong> Ozna\u010duje probl\u00e9my s mechanizmom lepenia<\/li>\n<\/ul>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>Preh\u013ead:<\/strong><br>Kompletn\u00fd <strong>krivka lepenia za tepla<\/strong> poskytuje viac vyu\u017eite\u013en\u00fdch inform\u00e1ci\u00ed ako jednobodov\u00e9 meranie.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u010dasto kladen\u00e9 ot\u00e1zky<\/h2>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>1. Ak\u00fd je rozdiel medzi lepivos\u0165ou za tepla a pevnos\u0165ou tesnenia?<\/strong><br>Pri\u013enavos\u0165 za tepla meria pevnos\u0165 tesnenia bezprostredne po utesnen\u00ed, zatia\u013e \u010do pevnos\u0165 tesnenia sa meria po ochladen\u00ed na teplotu okolia.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>2. Pre\u010do je norma ASTM F1921 rozhoduj\u00faca pre obaly FFS?<\/strong><br>Preto\u017ee tesnenia s\u00fa pred ochladen\u00edm nam\u00e1han\u00e9 a slab\u00e1 pri\u013enavos\u0165 za tepla m\u00f4\u017ee sp\u00f4sobi\u0165 poruchu po\u010das v\u00fdroby.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>3. Ktor\u00fa met\u00f3du si m\u00e1m vybra\u0165, met\u00f3du A alebo B?<\/strong><br>Na podrobn\u00fa anal\u00fdzu pou\u017eite met\u00f3du A a na r\u00fdchlu kontrolu kvality met\u00f3du B.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>4. Ak\u00e1 je typick\u00e1 krivka pri\u013enavosti za tepla?<\/strong><br>Zobrazuje pevnos\u0165 tesnenia v z\u00e1vislosti od teploty alebo \u010dasu, \u010d\u00edm pom\u00e1ha ur\u010di\u0165 optim\u00e1lne podmienky tesnenia.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><strong>5. M\u00f4\u017eu sa viacvrstvov\u00e9 filmy testova\u0165 pomocou <a href=\"https:\/\/store.astm.org\/f1921_f1921m-12r23.html\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">ASTM F1921<\/a>?<\/strong><br>\u00c1no, t\u00e1to met\u00f3da sa vz\u0165ahuje na jednovrstvov\u00e9 aj viacvrstvov\u00e9 termoplastick\u00e9 \u0161trukt\u00fary.<\/p>\n\n\n\n<p class=\"wp-block-paragraph\"><\/p>","protected":false},"excerpt":{"rendered":"<p>Norma ASTM F1921 definuje \u0161tandardizovan\u00e9 met\u00f3dy na meranie pevnosti termoplastick\u00fdch materi\u00e1lov pri lepen\u00ed za tepla bezprostredne po utesnen\u00ed. Poskytuje dva pr\u00edstupy - met\u00f3du A na anal\u00fdzu v z\u00e1vislosti od \u010dasu a met\u00f3du B na meranie \u0161pi\u010dkovej sily - ktor\u00e9 umo\u017e\u0148uj\u00fa presn\u00e9 hodnotenie v\u00fdkonu tesnenia po\u010das kritickej f\u00e1zy chladnutia.<\/p>","protected":false},"featured_media":10318,"parent":0,"template":"","meta":{"_acf_changed":true,"site-sidebar-layout":"default","site-content-layout":"","ast-site-content-layout":"default","site-content-style":"default","site-sidebar-style":"default","ast-global-header-display":"","ast-banner-title-visibility":"","ast-main-header-display":"","ast-hfb-above-header-display":"","ast-hfb-below-header-display":"","ast-hfb-mobile-header-display":"","site-post-title":"","ast-breadcrumbs-content":"","ast-featured-img":"disabled","footer-sml-layout":"","theme-transparent-header-meta":"","adv-header-id-meta":"","stick-header-meta":"","header-above-stick-meta":"","header-main-stick-meta":"","header-below-stick-meta":"","astra-migrate-meta-layouts":"set","ast-page-background-enabled":"default","ast-page-background-meta":{"desktop":{"background-color":"var(--ast-global-color-4)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}},"ast-content-background-meta":{"desktop":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"tablet":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""},"mobile":{"background-color":"var(--ast-global-color-5)","background-image":"","background-repeat":"repeat","background-position":"center center","background-size":"auto","background-attachment":"scroll","background-type":"","background-media":"","overlay-type":"","overlay-color":"","overlay-gradient":""}}},"standard-category":[611],"class_list":["post-10317","standard","type-standard","status-publish","has-post-thumbnail","hentry","standard-category-astm"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.packqc.com\/sk\/wp-json\/wp\/v2\/standard\/10317","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.packqc.com\/sk\/wp-json\/wp\/v2\/standard"}],"about":[{"href":"https:\/\/www.packqc.com\/sk\/wp-json\/wp\/v2\/types\/standard"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.packqc.com\/sk\/wp-json\/wp\/v2\/media\/10318"}],"wp:attachment":[{"href":"https:\/\/www.packqc.com\/sk\/wp-json\/wp\/v2\/media?parent=10317"}],"wp:term":[{"taxonomy":"standard-category","embeddable":true,"href":"https:\/\/www.packqc.com\/sk\/wp-json\/wp\/v2\/standard-category?post=10317"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}