{"id":9296,"date":"2026-02-02T11:23:36","date_gmt":"2026-02-02T03:23:36","guid":{"rendered":"https:\/\/www.packqc.com\/applications\/loop-tack-test-method\/"},"modified":"2026-03-11T15:40:25","modified_gmt":"2026-03-11T07:40:25","slug":"loop-tack-test-method","status":"publish","type":"applications","link":"https:\/\/www.packqc.com\/da\/applications\/loop-tack-test-method\/","title":{"rendered":"Loop Tack-testmetode"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Loop Tack-testmetode til evaluering af kl\u00e6bemidlers ydeevne<\/h2>\n\n\n\n<p>Trykf\u00f8lsomme kl\u00e6bemidler (PSA'er) spiller en afg\u00f8rende rolle i tape, etiketter, medicinske forbindinger og industrielle limningssystemer. Blandt de mange pr\u00e6stationsindikatorer, der bruges til at evaluere disse materialer, <strong>h\u00e6fteklammer<\/strong>- et kl\u00e6bemiddels evne til hurtigt at danne en binding med let tryk - er s\u00e6rlig vigtig.<\/p>\n\n\n\n<p>De <strong>Metode til test af l\u00f8kkekl\u00e6bning<\/strong> er bredt anerkendt som en af de mest p\u00e5lidelige teknikker til at m\u00e5le den \u00f8jeblikkelige vedh\u00e6ftning af trykf\u00f8lsomme materialer. Ved at kvantificere den maksimale kraft, der kr\u00e6ves for at l\u00f8sne en kl\u00e6bende sl\u00f8jfe fra en standardiseret overflade, giver testen en klar og gentagelig m\u00e5ling af kl\u00e6beevne.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Test af l\u00f8kkekl\u00e6bning: M\u00e5ling af \u00f8jeblikkelig vedh\u00e6ftningsevne<\/h2>\n\n\n\n<p><strong>Test af l\u00f8kkekl\u00e6bning<\/strong> evaluerer, hvor hurtigt og st\u00e6rkt et trykf\u00f8lsomt kl\u00e6bemiddel binder til et substrat, n\u00e5r der p\u00e5f\u00f8res et minimalt tryk. Testen indeb\u00e6rer, at der dannes en l\u00f8kke af kl\u00e6beb\u00e5nd med den kl\u00e6bende overflade vendt udad, og at den bringes i kontrolleret kontakt med en overflade af rustfrit st\u00e5l.<\/p>\n\n\n\n<p>N\u00e5r sl\u00f8jfen kommer i kontakt med underlaget, er det kun <strong>V\u00e6gten af selve pr\u00f8ven<\/strong> s\u00f8rger for limningstrykket. Testinstrumentet adskiller derefter l\u00f8kken fra underlaget, mens det registrerer <strong>maksimal kraft, der kr\u00e6ves til frig\u00f8relse<\/strong>.<\/p>\n\n\n\n<p>De vigtigste egenskaber m\u00e5lt under loop tack-test omfatter<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Indledende vedh\u00e6ftningsstyrke<\/strong><\/li>\n\n\n\n<li><strong>Kl\u00e6behastighed<\/strong><\/li>\n\n\n\n<li><strong>Konsistens af kl\u00e6bemiddelformulering<\/strong><\/li>\n\n\n\n<li><strong>Opf\u00f8rsel i fejltilstand<\/strong> (vedh\u00e6ftning, samh\u00f8righed eller overf\u00f8rsel)<\/li>\n<\/ul>\n\n\n\n<p>Fordi kontakttrykket forbliver minimalt og kontrolleret, giver loop tack-test en p\u00e5lidelig indikator for, hvordan et kl\u00e6bemiddel fungerer under p\u00e5f\u00f8ring i den virkelige verden.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Evaluering af trykf\u00f8lsom tape Loop Tack<\/h2>\n\n\n\n<p>De <strong>Trykf\u00f8lsom tape med l\u00f8begang<\/strong> testen er is\u00e6r vigtig for industrier, hvor der er behov for hurtig vedh\u00e6ftning. Disse omfatter:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Emballagetape<\/li>\n\n\n\n<li>Trykf\u00f8lsomme etiketter<\/li>\n\n\n\n<li>Medicinsk kl\u00e6bende tape<\/li>\n\n\n\n<li>Beskyttende film<\/li>\n\n\n\n<li>Industrielle limmaterialer<\/li>\n<\/ul>\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<div class=\"ast-oembed-container\" style=\"height: 100%;\"><iframe title=\"Loop tack test i henhold til ASTM D6195, PSTC-16, FINAT No 9.\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/L1HbDnq-LxQ?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><\/div>\n<\/div><\/figure>\n\n\n\n<h2 class=\"wp-block-heading\">Loop Tack Standard - PSTC-16 &amp; ASTM D6195 &amp; FINAT FTM 9<\/h2>\n\n\n\n<h3 class=\"wp-block-heading\"><a href=\"https:\/\/www.packqc.com\/da\/standard\/pstc-16\/\" target=\"_blank\" rel=\"noreferrer noopener\">PSTC-16<\/a> Loop Tack Standard<\/h3>\n\n\n\n<p><strong>PSTC-16<\/strong> er en testmetode, der er udviklet af Pressure Sensitive Tape Council til at evaluere <strong>kl\u00e6beevne for trykf\u00f8lsomme kl\u00e6bemidler<\/strong>. Metoden m\u00e5ler, hvor hurtigt et kl\u00e6bemiddel danner en binding umiddelbart efter kortvarig kontakt med en anden overflade.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Grundl\u00e6ggende testprincip<\/h4>\n\n\n\n<p>I testen foldes en selvkl\u00e6bende strimmel ind i en <strong>dr\u00e5beformet l\u00f8kke med kl\u00e6bemidlet vendt udad<\/strong>. Sl\u00f8jfen kommer let i kontakt med en <strong>1 kvadratcentimeter overflade i rustfrit st\u00e5l<\/strong>, hvor det eneste anvendte tryk kommer fra <strong>v\u00e6gten af selve den kl\u00e6bende pr\u00f8ve<\/strong>.<br>Testinstrumentet adskiller derefter sl\u00f8jfen fra overfladen og registrerer <strong>maksimal kraft, der kr\u00e6ves for at bryde bindingen<\/strong>, som repr\u00e6senterer v\u00e6rdien for l\u00f8kkekl\u00e6bning.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Vigtige testkonfigurationer<\/h4>\n\n\n\n<p>PSTC-16 specificerer to m\u00e5lemetoder:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Metode A:<\/strong> ved hj\u00e6lp af en tr\u00e6ktester med en <strong>175 mm pr\u00f8vestrimler<\/strong><\/li>\n\n\n\n<li><strong>Metode B:<\/strong> ved hj\u00e6lp af en <strong>dedikeret loop tack-tester<\/strong> med en <strong>125 mm pr\u00f8vestrimler<\/strong><\/li>\n<\/ul>\n\n\n\n<p>Denne standard er meget brugt til <strong>kvalitetskontrol og sammenligning af limens ydeevne<\/strong> inden for tape- og labelproduktion.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><a href=\"https:\/\/www.packqc.com\/da\/standard\/astm-d6195\/\" target=\"_blank\" rel=\"noreferrer noopener\">ASTM D6195<\/a> Loop Tack-testmetode<\/h3>\n\n\n\n<p><strong><a href=\"https:\/\/www.packqc.com\/da\/standard\/astm-d6195\/\">ASTM D6195<\/a><\/strong> giver standardiserede procedurer til m\u00e5ling af <strong>loop tack af trykf\u00f8lsomme kl\u00e6beprodukter<\/strong>, herunder b\u00e5nd, etiketter og laminater. Metoden kvantificerer <strong>\u00f8jeblikkelig vedh\u00e6ftningskraft<\/strong> der genereres, n\u00e5r kl\u00e6bemidlet kortvarigt kommer i kontakt med en testoverflade.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Test af koncept<\/h4>\n\n\n\n<p>En pr\u00f8vestrip med kl\u00e6bende bagside formes til en <strong>loop og bragt i kontrolleret kontakt med et rustfrit st\u00e5lpanel, der m\u00e5ler 25 mm \u00d7 25 mm<\/strong>.<br>N\u00e5r der opst\u00e5r kontakt, tr\u00e6kker testmaskinen straks l\u00f8kken v\u00e6k fra panelet og registrerer <strong>Den maksimale kraft, der kr\u00e6ves til adskillelse<\/strong>.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Valg af udstyr<\/h4>\n\n\n\n<p>ASTM D6195 tillader to testkonfigurationer:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Metode til tr\u00e6kpr\u00f8vning<\/strong> ved hj\u00e6lp af en universaltestmaskine og loop-fixtur<\/li>\n\n\n\n<li><strong>Loop tack tester-metoden<\/strong> ved hj\u00e6lp af et dedikeret instrument designet specielt til m\u00e5ling af kl\u00e6beevne<\/li>\n<\/ul>\n\n\n\n<p>Standarden giver en <strong>p\u00e5lidelig kvantitativ m\u00e5ling af kl\u00e6beevne<\/strong>, hvilket g\u00f8r den velegnet til forskning, produktudvikling og rutinem\u00e6ssig kvalitetskontrol.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><a href=\"https:\/\/www.packqc.com\/da\/standard\/finat-ftm-9\/\" target=\"_blank\" rel=\"noreferrer noopener\">FINAT FTM 9<\/a><\/h3>\n\n\n\n<p><strong>FINAT FTM 9<\/strong> er en del af FINAT's tekniske manual, der bruges i stor udstr\u00e6kning i <strong>Industrien for selvkl\u00e6bende etiketter<\/strong>. Metoden evaluerer den <strong>\u201cindledende greb\u201d eller p\u00e5f\u00f8ringstackling<\/strong> af trykf\u00f8lsomme laminater, hvilket er afg\u00f8rende for processer som f.eks. <strong>automatisk m\u00e6rkning<\/strong>.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Princip for m\u00e5ling<\/h4>\n\n\n\n<p>Den selvkl\u00e6bende strimmel er formet til en <strong>loop med den kl\u00e6bende overflade vendt udad<\/strong> og monteret p\u00e5 en tr\u00e6ktester. Sl\u00f8jfen kommer i kontakt med en <strong>Testplade af glas (ca. 25 mm \u00d7 25 mm)<\/strong> og bliver derefter adskilt ved en <strong>kontrolleret hastighed p\u00e5 300 mm\/min<\/strong>.<\/p>\n\n\n\n<p>De <strong>den kraft, der skal til for at l\u00f8sne l\u00f8kken fra overfladen<\/strong> repr\u00e6senterer loop-tack-v\u00e6rdien.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Testbetingelser og resultater<\/h4>\n\n\n\n<p>Typiske testbetingelser er <strong>23 \u00b0C \u00b12 \u00b0C og 50 % RH \u00b15 %<\/strong>. I det mindste <strong>fem eksemplarer<\/strong> testes, og den gennemsnitlige kraft i <strong>Newtons<\/strong> rapporteres.<br>Yderligere observationer som f.eks. <strong>kl\u00e6bende overf\u00f8rsel (AT)<\/strong> eller <strong>papirrivning (PT)<\/strong> kan ogs\u00e5 registreres for at beskrive fejltilstanden.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Standard<\/th><th>Loop-l\u00e6ngde<\/th><th>Overfladeareal<\/th><th>Vigtige bem\u00e6rkninger<\/th><\/tr><\/thead><tbody><tr><td><strong data-start=\"2088\" data-end=\"2099\">PSTC-16<\/strong><\/td><td>125 mm eller 175 mm<\/td><td>24 mm \u00d7 24 mm<\/td><td>To testmetoder (tr\u00e6ktester eller loop tack-tester)<\/td><\/tr><tr><td><strong data-start=\"2195\" data-end=\"2209\">ASTM D6195<\/strong><\/td><td>125 mm (metode B) eller 175 mm (metode A)<\/td><td>25 mm \u00d7 25 mm<\/td><td>Udbredt i amerikanske testlaboratorier<\/td><\/tr><tr><td><strong data-start=\"2306\" data-end=\"2321\">FINAT FTM 9<\/strong><\/td><td>175 mm<\/td><td>25 mm \u00d7 25 mm (glas)<\/td><td>Foretrukket i Europa til etiketkl\u00e6bemidler<\/td><\/tr><\/tbody><\/table><\/figure>","protected":false},"excerpt":{"rendered":"<p>Loop Tack Test Method for Adhesive Performance Evaluation Trykf\u00f8lsomme kl\u00e6bemidler (PSA'er) spiller en afg\u00f8rende rolle i tape, etiketter, medicinske forbindinger og industrielle limningssystemer. Blandt de mange pr\u00e6stationsindikatorer, der bruges til at evaluere disse materialer, er tack - et kl\u00e6bemiddels evne til hurtigt at danne en binding med let tryk - s\u00e6rlig vigtig. Testmetoden loop tack er [...]<\/p>","protected":false},"featured_media":9890,"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":"","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":""}}},"class_list":["post-9296","applications","type-applications","status-publish","has-post-thumbnail","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.packqc.com\/da\/wp-json\/wp\/v2\/applications\/9296","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.packqc.com\/da\/wp-json\/wp\/v2\/applications"}],"about":[{"href":"https:\/\/www.packqc.com\/da\/wp-json\/wp\/v2\/types\/applications"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.packqc.com\/da\/wp-json\/wp\/v2\/media\/9890"}],"wp:attachment":[{"href":"https:\/\/www.packqc.com\/da\/wp-json\/wp\/v2\/media?parent=9296"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}