{"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\/ro\/applications\/loop-tack-test-method\/","title":{"rendered":"Metoda de testare Loop Tack"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Metoda de testare Loop Tack pentru evaluarea performan\u021bei adezivului<\/h2>\n\n\n\n<p>Adezivii sensibili la presiune (PSA) joac\u0103 un rol esen\u021bial \u00een benzi, etichete, pansamente medicale \u0219i sisteme de lipire industriale. Printre numero\u0219ii indicatori de performan\u021b\u0103 utiliza\u021bi pentru evaluarea acestor materiale se num\u0103r\u0103, <strong>tack<\/strong>-capacitatea unui adeziv de a forma rapid o leg\u0103tur\u0103 cu o u\u0219oar\u0103 presiune- este deosebit de important\u0103.<\/p>\n\n\n\n<p>The <strong>Metoda de testare a aderen\u021bei la bucl\u0103<\/strong> este recunoscut pe scar\u0103 larg\u0103 ca fiind una dintre cele mai fiabile tehnici de m\u0103surare a aderen\u021bei instantanee a materialelor sensibile la presiune. Prin cuantificarea for\u021bei maxime necesare pentru desprinderea unei bucle adezive de pe o suprafa\u021b\u0103 standardizat\u0103, testul ofer\u0103 o m\u0103surare clar\u0103 \u0219i repetabil\u0103 a adezivit\u0103\u021bii.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Testarea lipirii \u00een bucl\u0103: M\u0103surarea performan\u021bei aderen\u021bei instantanee<\/h2>\n\n\n\n<p><strong>Testarea prinderii buclei<\/strong> evalueaz\u0103 c\u00e2t de rapid \u0219i puternic se lipe\u0219te un adeziv sensibil la presiune de un substrat atunci c\u00e2nd se aplic\u0103 o presiune minim\u0103. Testul presupune formarea unei bucle de band\u0103 adeziv\u0103 cu suprafa\u021ba adeziv\u0103 orientat\u0103 spre exterior \u0219i aducerea acesteia \u00een contact controlat cu o suprafa\u021b\u0103 din o\u021bel inoxidabil.<\/p>\n\n\n\n<p>Atunci c\u00e2nd bucla intr\u0103 \u00een contact cu substratul, numai <strong>greutatea specimenului \u00een sine<\/strong> asigur\u0103 presiunea de lipire. Instrumentul de testare separ\u0103 apoi bucla de substrat \u00een timp ce \u00eenregistreaz\u0103 <strong>for\u021ba maxim\u0103 necesar\u0103 pentru deta\u0219are<\/strong>.<\/p>\n\n\n\n<p>Caracteristicile cheie m\u0103surate \u00een timpul testului de fixare \u00een bucl\u0103 includ:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Puterea de aderen\u021b\u0103 ini\u021bial\u0103<\/strong><\/li>\n\n\n\n<li><strong>Viteza de lipire a adezivului<\/strong><\/li>\n\n\n\n<li><strong>Consisten\u021ba formulei adezive<\/strong><\/li>\n\n\n\n<li><strong>Comportamentul modului de e\u0219ec<\/strong> (adeziune, coeziune sau transfer)<\/li>\n<\/ul>\n\n\n\n<p>Deoarece presiunea de contact r\u0103m\u00e2ne minim\u0103 \u0219i controlat\u0103, testul de aderen\u021b\u0103 \u00een bucl\u0103 ofer\u0103 un indicator fiabil al modului \u00een care un adeziv se comport\u0103 \u00een timpul aplic\u0103rii reale.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Band\u0103 sensibil\u0103 la presiune Evaluare Loop Tack<\/h2>\n\n\n\n<p>The <strong>band\u0103 sensibil\u0103 la presiune<\/strong> testul este deosebit de important pentru industriile \u00een care este necesar\u0103 o aderen\u021b\u0103 rapid\u0103. Acestea includ:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Benzi de ambalare<\/li>\n\n\n\n<li>Etichete sensibile la presiune<\/li>\n\n\n\n<li>Benzi adezive medicale<\/li>\n\n\n\n<li>Folii protectoare<\/li>\n\n\n\n<li>Materiale de lipire industriale<\/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=\"Test de aderen\u021b\u0103 la bucl\u0103 \u00een conformitate cu ASTM D6195, PSTC-16, FINAT nr. 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\/ro\/standard\/pstc-16\/\" target=\"_blank\" rel=\"noreferrer noopener\">PSTC-16<\/a> Bucla Tack Standard<\/h3>\n\n\n\n<p><strong>PSTC-16<\/strong> este o metod\u0103 de testare dezvoltat\u0103 de Pressure Sensitive Tape Council pentru a evalua <strong>performan\u021ba de lipire a adezivilor sensibili la presiune<\/strong>. Metoda m\u0103soar\u0103 rapiditatea cu care un adeziv formeaz\u0103 o leg\u0103tur\u0103 imediat dup\u0103 un scurt contact cu o alt\u0103 suprafa\u021b\u0103.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Principiul test\u0103rii de baz\u0103<\/h4>\n\n\n\n<p>\u00cen cadrul testului, o band\u0103 adeziv\u0103 este pliat\u0103 \u00eentr-o <strong>bucl\u0103 \u00een form\u0103 de lacrim\u0103 cu adezivul orientat spre exterior<\/strong>. Bucla contacteaz\u0103 u\u0219or un <strong>1 inch p\u0103trat suprafa\u021b\u0103 din o\u021bel inoxidabil<\/strong>, unde singura presiune aplicat\u0103 provine de la <strong>greutatea specimenului adeziv \u00een sine<\/strong>.<br>Instrumentul de testare separ\u0103 apoi bucla de suprafa\u021b\u0103 \u0219i \u00eenregistreaz\u0103 <strong>for\u021ba maxim\u0103 necesar\u0103 pentru ruperea leg\u0103turii<\/strong>, care reprezint\u0103 valoarea de fixare a buclei.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Configura\u021bii cheie de testare<\/h4>\n\n\n\n<p>PSTC-16 specific\u0103 dou\u0103 metode de m\u0103surare:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Metoda A:<\/strong> folosind un tester de trac\u021biune cu un <strong>Band\u0103 de prob\u0103 de 175 mm<\/strong><\/li>\n\n\n\n<li><strong>Metoda B:<\/strong> folosind un <strong>tester dedicat de fixare a buclei<\/strong> cu un <strong>Band\u0103 de prob\u0103 de 125 mm<\/strong><\/li>\n<\/ul>\n\n\n\n<p>Acest standard este utilizat pe scar\u0103 larg\u0103 pentru <strong>controlul calit\u0103\u021bii \u0219i compararea performan\u021belor adezivului<\/strong> \u00een produc\u021bia de benzi \u0219i etichete.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><a href=\"https:\/\/www.packqc.com\/ro\/standard\/astm-d6195\/\" target=\"_blank\" rel=\"noreferrer noopener\">ASTM D6195<\/a> Metoda de testare Loop Tack<\/h3>\n\n\n\n<p><strong><a href=\"https:\/\/www.packqc.com\/ro\/standard\/astm-d6195\/\">ASTM D6195<\/a><\/strong> prevede proceduri standardizate de m\u0103surare a <strong>aderen\u021ba la bucl\u0103 a produselor adezive sensibile la presiune<\/strong>, inclusiv benzi, etichete \u0219i laminate. Metoda cuantific\u0103 <strong>for\u021b\u0103 de aderen\u021b\u0103 instantanee<\/strong> generate atunci c\u00e2nd adezivul intr\u0103 pentru scurt timp \u00een contact cu o suprafa\u021b\u0103 de testare.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Conceptul de testare<\/h4>\n\n\n\n<p>O band\u0103 de prob\u0103 cu suport adeziv este modelat\u0103 \u00een form\u0103 de <strong>\u0219i adus \u00een contact controlat cu un panou din o\u021bel inoxidabil de 25 mm \u00d7 25 mm<\/strong>.<br>Dup\u0103 contact, aparatul de testare \u00eendep\u0103rteaz\u0103 imediat bucla de panou \u0219i \u00eenregistreaz\u0103 <strong>for\u021ba maxim\u0103 necesar\u0103 pentru separare<\/strong>.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Op\u021biuni pentru echipamente<\/h4>\n\n\n\n<p>ASTM D6195 permite dou\u0103 configura\u021bii de testare:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong>Metoda testerului de trac\u021biune<\/strong> folosind o ma\u0219in\u0103 universal\u0103 de testare \u0219i un dispozitiv de fixare \u00een bucl\u0103<\/li>\n\n\n\n<li><strong>Metoda testerului de fixare a buclei<\/strong> utiliz\u00e2nd un instrument special conceput pentru m\u0103surarea aderen\u021bei<\/li>\n<\/ul>\n\n\n\n<p>Standardul prevede o <strong>m\u0103surare cantitativ\u0103 fiabil\u0103 a adezivit\u0103\u021bii<\/strong>, ceea ce \u00eel face potrivit pentru cercetare, dezvoltarea produselor \u0219i controlul de rutin\u0103 al calit\u0103\u021bii.<\/p>\n\n\n\n<h3 class=\"wp-block-heading\"><a href=\"https:\/\/www.packqc.com\/ro\/standard\/finat-ftm-9\/\" target=\"_blank\" rel=\"noreferrer noopener\">FINAT FTM 9<\/a><\/h3>\n\n\n\n<p><strong>FINAT FTM 9<\/strong> face parte din manualul tehnic FINAT utilizat pe scar\u0103 larg\u0103 \u00een <strong>industria etichetelor autoadezive<\/strong>. Metoda evalueaz\u0103 <strong>\u201capucare ini\u021bial\u0103\u201d sau aplicare<\/strong> a laminatelor sensibile la presiune, ceea ce este esen\u021bial pentru procese precum <strong>etichetare automat\u0103<\/strong>.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Principiul de m\u0103surare<\/h4>\n\n\n\n<p>Banda adeziv\u0103 este format\u0103 \u00eentr-o <strong>bucla cu suprafa\u021ba adeziv\u0103 orientat\u0103 spre exterior<\/strong> \u0219i montat\u0103 pe un tester de trac\u021biune. Bucla intr\u0103 \u00een contact cu un <strong>plac\u0103 de testare din sticl\u0103 (aproximativ 25 mm \u00d7 25 mm)<\/strong> \u0219i este apoi separat la o <strong>vitez\u0103 controlat\u0103 de 300 mm\/min<\/strong>.<\/p>\n\n\n\n<p>The <strong>for\u021ba necesar\u0103 pentru desprinderea buclei de la suprafa\u021b\u0103<\/strong> reprezint\u0103 valoarea de fixare a buclei.<\/p>\n\n\n\n<h4 class=\"wp-block-heading\">Condi\u021bii de testare \u0219i rezultate<\/h4>\n\n\n\n<p>Condi\u021biile tipice de testare sunt <strong>23 \u00b0C \u00b12 \u00b0C \u0219i 50 % RH \u00b15 %<\/strong>. Cel pu\u021bin <strong>cinci specimene<\/strong> sunt testate, iar for\u021ba medie \u00een <strong>Newtons<\/strong> este raportat\u0103.<br>Observa\u021bii suplimentare, cum ar fi <strong>transfer adeziv (AT)<\/strong> sau <strong>ruperea h\u00e2rtiei (PT)<\/strong> pot fi, de asemenea, \u00eenregistrate pentru a descrie modul de defectare.<\/p>\n\n\n\n<figure class=\"wp-block-table\"><table class=\"has-fixed-layout\"><thead><tr><th>Standard<\/th><th>Lungimea buclei<\/th><th>Suprafa\u021ba<\/th><th>Note cheie<\/th><\/tr><\/thead><tbody><tr><td><strong data-start=\"2088\" data-end=\"2099\">PSTC-16<\/strong><\/td><td>125 mm sau 175 mm<\/td><td>24 mm \u00d7 24 mm<\/td><td>Dou\u0103 metode de testare (tester de trac\u021biune sau tester de aderen\u021b\u0103 la bucl\u0103)<\/td><\/tr><tr><td><strong data-start=\"2195\" data-end=\"2209\">ASTM D6195<\/strong><\/td><td>125 mm (metoda B) sau 175 mm (metoda A)<\/td><td>25 mm \u00d7 25 mm<\/td><td>Utilizat pe scar\u0103 larg\u0103 \u00een laboratoarele de testare din SUA<\/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 (sticl\u0103)<\/td><td>Preferat \u00een Europa pentru adezivi pentru etichete<\/td><\/tr><\/tbody><\/table><\/figure>","protected":false},"excerpt":{"rendered":"<p>Metoda de testare a aderen\u021bei \u00een bucl\u0103 pentru evaluarea performan\u021bei adezivilor Adezivii sensibili la presiune (PSA) joac\u0103 un rol esen\u021bial \u00een benzi, etichete, pansamente medicale \u0219i sisteme industriale de lipire. Printre numero\u0219ii indicatori de performan\u021b\u0103 utiliza\u021bi pentru evaluarea acestor materiale, tack-ul - capacitatea unui adeziv de a forma rapid o leg\u0103tur\u0103 la o presiune u\u0219oar\u0103 - este deosebit de important. Metoda de testare a adezivului cu bucl\u0103 este [...]<\/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\/ro\/wp-json\/wp\/v2\/applications\/9296","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.packqc.com\/ro\/wp-json\/wp\/v2\/applications"}],"about":[{"href":"https:\/\/www.packqc.com\/ro\/wp-json\/wp\/v2\/types\/applications"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.packqc.com\/ro\/wp-json\/wp\/v2\/media\/9890"}],"wp:attachment":[{"href":"https:\/\/www.packqc.com\/ro\/wp-json\/wp\/v2\/media?parent=9296"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}