{"id":9848,"date":"2026-02-24T15:11:45","date_gmt":"2026-02-24T07:11:45","guid":{"rendered":"https:\/\/www.packqc.com\/standard\/tappi-t549-2\/"},"modified":"2026-04-16T09:59:50","modified_gmt":"2026-04-16T01:59:50","slug":"tappi-t549","status":"publish","type":"standard","link":"https:\/\/www.packqc.com\/ro\/standard\/tappi-t549\/","title":{"rendered":"TAPPI T549"},"content":{"rendered":"<h2 class=\"wp-block-heading\">De ce este important\u0103 m\u0103surarea coeficientului de frecare al h\u00e2rtiei<\/h2>\n\n\n\n<p>Suprafe\u021bele h\u00e2rtiei interac\u021bioneaz\u0103 dinamic \u00een timpul proceselor de produc\u021bie \u0219i aplicare. Modelul <strong data-start=\"1535\" data-end=\"1549\">COF static<\/strong> m\u0103soar\u0103 for\u021ba necesar\u0103 pentru ini\u021bierea alunec\u0103rii \u00eentre dou\u0103 foi, \u00een timp ce <strong data-start=\"1628\" data-end=\"1643\">COF cinetic<\/strong> se refer\u0103 la for\u021ba necesar\u0103 pentru a men\u021bine mi\u0219carea la o vitez\u0103 constant\u0103. O h\u00e2rtie prea alunecoas\u0103 poate duce la erori de alimentare, \u00een timp ce o suprafa\u021b\u0103 cu frecare excesiv\u0103 poate provoca ruperea sau blocarea.<\/p>\n\n\n\n<p>TAPPI T549 abordeaz\u0103 \u00een mod specific frecarea <strong data-start=\"1878\" data-end=\"1938\">\u00eentre dou\u0103 foi de h\u00e2rtie neacoperit\u0103 pentru scris sau tip\u0103rit<\/strong>, simul\u00e2nd condi\u021biile din timpul stivuirii, aliment\u0103rii sau transportului de coli prin imprimante \u0219i copiatoare. Precizie <strong data-start=\"2053\" data-end=\"2098\">m\u0103surarea coeficientului de frecare pe h\u00e2rtie<\/strong> ajut\u0103 la optimizarea formul\u0103rilor produselor, la evaluarea eficacit\u0103\u021bii acoperirii \u0219i la asigurarea consecven\u021bei calit\u0103\u021bii \u00eentre loturi.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Prezentare general\u0103 a metodei de testare standard conform TAPPI T549<\/h2>\n\n\n\n<p>Testul TAPPI T549 implic\u0103 o <strong data-start=\"2314\" data-end=\"2341\">metoda planului orizontal<\/strong>, \u00een care un specimen de h\u00e2rtie este tras peste o alt\u0103 foaie \u00een condi\u021bii controlate. Configura\u021bia include:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Un plan de testare neted, nivelat (metal, sticl\u0103 sau plastic)<\/li>\n\n\n\n<li>O <strong data-start=\"2509\" data-end=\"2530\">sanie standardizat\u0103<\/strong> cu un suport din neopren compresibil<\/li>\n\n\n\n<li>O <strong data-start=\"2574\" data-end=\"2600\">dispozitiv de m\u0103surare a for\u021bei<\/strong> (ca o celul\u0103 de sarcin\u0103)<\/li>\n\n\n\n<li>Un sistem de mi\u0219care cu vitez\u0103 constant\u0103 (de obicei 150 \u00b1 30 mm\/min)<\/li>\n<\/ul>\n\n\n\n<p>Testul este efectuat at\u00e2t \u00een <strong data-start=\"2714\" data-end=\"2740\">direc\u021bia ma\u0219inii (MD)<\/strong> \u015fi <strong data-start=\"2745\" data-end=\"2777\">direc\u021bia transversal\u0103 a ma\u0219inii (CD)<\/strong> folosind specimene atent preg\u0103tite. M\u0103sur\u0103torile surprind rezisten\u021ba ini\u021bial\u0103 (COF static) \u0219i mi\u0219carea sus\u021binut\u0103 (COF cinetic).<\/p>\n\n\n\n<p>TAPPI T549 difer\u0103 de alte metode precum TAPPI T815, care m\u0103soar\u0103 COF al materialelor de ambalare pe un plan \u00eenclinat. Concentr\u00e2ndu-se pe comportamentul foilor plate \u0219i pe alunec\u0103rile la primul contact, T549 ofer\u0103 date precise pentru <strong data-start=\"3124\" data-end=\"3150\">aplica\u021bii de tip sheet-fed<\/strong>.<\/p>\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=\"FPT-01 Tester de rezisten\u021b\u0103 la frecare \u0219i peeling cu func\u021bie de coeficient de frecare\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/QpwY4XRM9JI?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\">Preg\u0103tirea probelor \u0219i elementele esen\u021biale ale procedurii de testare<\/h2>\n\n\n\n<p>\u00cen conformitate cu TAPPI T549, preg\u0103tirea meticuloas\u0103 a probelor este esen\u021bial\u0103. Foile trebuie s\u0103 fie:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Precondi\u021bionate \u0219i condi\u021bionate conform TAPPI T402<\/li>\n\n\n\n<li>T\u0103ia\u021bi cu precizie pentru a evita deteriorarea marginilor (dimensiuni recomandate: 100\u00d7215 mm \u0219i 75\u00d7130 mm)<\/li>\n\n\n\n<li>Aliniate \u00een orient\u0103ri MD sau CD corecte \u00een timpul test\u0103rii<\/li>\n<\/ul>\n\n\n\n<p>\u00cen timpul test\u0103rii, dispozitivul <strong data-start=\"4357\" data-end=\"4387\">sania trebuie s\u0103 fie u\u0219or plasat\u0103<\/strong> f\u0103r\u0103 mi\u0219care lateral\u0103. For\u021ba de trac\u021biune este \u00eenregistrat\u0103 imediat dup\u0103 ini\u021bierea mi\u0219c\u0103rii (pentru COF static), iar apoi se calculeaz\u0103 media pe o curs\u0103 de 130 mm pentru COF cinetic.<\/p>\n\n\n\n<p>Trebuie s\u0103 se acorde aten\u021bie pentru a evita vibra\u021biile sau \u00eentinderea firului de conectare, care pot distorsiona rezultatele. Pentru <strong data-start=\"4659\" data-end=\"4669\">FPT-01<\/strong> abordeaz\u0103 aceste provoc\u0103ri cu ajutorul construc\u021biei stabilizate \u0219i a tehnologiei de detectare precis\u0103 a sarcinii.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Aplica\u021bii \u0219i valoare comercial\u0103<\/h2>\n\n\n\n<p>Datele COF fiabile asigur\u0103 coeren\u021ba <strong data-start=\"4846\" data-end=\"4863\">alimentarea foilor<\/strong>, mai bine <strong data-start=\"4872\" data-end=\"4892\">eficien\u021ba presei<\/strong>, \u0219i <strong data-start=\"4898\" data-end=\"4923\">reducerea risipei de produse<\/strong>. Pentru personalul QA \u0219i dezvoltatorii de produse din h\u00e2rtie, TAPPI T549 permite:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Compararea tratamentelor de suprafa\u021b\u0103 (de exemplu, calandrare, acoperire)<\/li>\n\n\n\n<li>Evaluarea uniformit\u0103\u021bii loturilor<\/li>\n\n\n\n<li>Compararea cu standardele din industrie<\/li>\n<\/ul>\n\n\n\n<h2 class=\"wp-block-heading\">Alegerea testerului de exfoliere prin frecare potrivit<\/h2>\n\n\n\n<p>Pentru a fi \u00een conformitate cu TAPPI T549 \u0219i pentru a asigura o reproductibilitate ridicat\u0103, un sistem de testare robust \u0219i sensibil este vital. Sistemul <a href=\"https:\/\/www.packqc.com\/ro\/product\/sale-friction-peel-tester-manufacturer\/\">FPT-01<\/a> Testerul Friction Peel de la Cell Instruments este conceput pentru a satisface aceste nevoi. Acesta ofer\u0103:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Senzori de for\u021b\u0103 de \u00eenalt\u0103 precizie cu viteze de r\u0103spuns rapide<\/li>\n\n\n\n<li>Op\u021biuni personalizabile privind masa \u0219i suprafa\u021ba saniei, \u00een conformitate cu TAPPI T549<\/li>\n\n\n\n<li>Control uniform al vitezei de alunecare cu vibra\u021bii minime<\/li>\n\n\n\n<li>Afi\u0219area datelor \u00een timp real \u0219i calcule COF integrate (statice \u0219i cinetice)<\/li>\n\n\n\n<li>Interfa\u021b\u0103 software u\u0219or de utilizat \u0219i func\u021bii op\u021bionale de export de date<\/li>\n<\/ul>\n\n\n\n<p>Prin utilizarea testerului FPT-01 cof, produc\u0103torii \u0219i transformatorii de h\u00e2rtie pot efectua cu \u00eencredere m\u0103surarea coeficientului de frecare al h\u00e2rtiei \u00een conformitate cu standardele TAPPI, minimiz\u00e2nd erorile manuale \u0219i \u00eembun\u0103t\u0103\u021bind randamentul laboratorului.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Contacta\u021bi-ne Ob\u021bine\u021bi solu\u021bia de testare TAPPI T549 D1709 <\/h2>\n\n\n\n<p><strong data-start=\"5424\" data-end=\"5438\">TAPPI T549<\/strong> ofer\u0103 un punct de referin\u021b\u0103 esen\u021bial pentru evaluarea <strong data-start=\"5488\" data-end=\"5519\">frecarea static\u0103 \u0219i cinetic\u0103<\/strong> a h\u00e2rtiei de tipar \u0219i de scris neacoperite. Aceasta permite produc\u0103torilor s\u0103 ajusteze performan\u021ba produselor, s\u0103 \u00eembun\u0103t\u0103\u021beasc\u0103 eficien\u021ba produc\u021biei \u0219i s\u0103 \u00eendeplineasc\u0103 a\u0219tept\u0103rile utilizatorilor finali. Cu Cell Instruments\u2019 <strong data-start=\"5705\" data-end=\"5726\">FPT-01 tester cof<\/strong>, organiza\u021biile ob\u021bin o solu\u021bie fiabil\u0103, conform\u0103 cu standardele pentru <strong data-start=\"5792\" data-end=\"5837\">m\u0103surarea coeficientului de frecare pe h\u00e2rtie<\/strong> care asigur\u0103 acurate\u021be \u0219i repetabilitate ridicat\u0103.<\/p>\n\n\n\n<p>Prin integrarea <strong data-start=\"5154\" data-end=\"5203\"><a href=\"https:\/\/www.packqc.com\/ro\/\">Instrumente celulare<\/a>\u2018 FPT-01 Tester de exfoliere prin frecare<\/strong>, laboratoarele ob\u021bin o platform\u0103 fiabil\u0103 pentru a implementa <a href=\"https:\/\/www.tappi.org\/\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">TAPPI <\/a>T549 cu acurate\u021be \u0219i eficien\u021b\u0103, ceea ce \u00eel face ideal pentru utilizarea \u00een <strong data-start=\"5324\" data-end=\"5399\">Laboratoare de cercetare \u0219i dezvoltare, departamente de control al calit\u0103\u021bii \u0219i agen\u021bii de testare ter\u021be<\/strong>.<\/p>","protected":false},"excerpt":{"rendered":"<p>De ce este important\u0103 m\u0103surarea coeficientului de frecare al h\u00e2rtiei Suprafe\u021bele h\u00e2rtiei interac\u021bioneaz\u0103 dinamic \u00een timpul proceselor de produc\u021bie \u0219i aplicare. COF static m\u0103soar\u0103 for\u021ba necesar\u0103 pentru a ini\u021bia alunecarea \u00eentre dou\u0103 foi, \u00een timp ce COF cinetic se refer\u0103 la for\u021ba necesar\u0103 pentru a men\u021bine mi\u0219carea la o vitez\u0103 constant\u0103. O h\u00e2rtie care este prea alunecoas\u0103 poate duce la erori de alimentare, [...]<\/p>","protected":false},"featured_media":6415,"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":""}}},"standard-category":[615],"class_list":["post-9848","standard","type-standard","status-publish","has-post-thumbnail","hentry","standard-category-tappi"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.packqc.com\/ro\/wp-json\/wp\/v2\/standard\/9848","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.packqc.com\/ro\/wp-json\/wp\/v2\/standard"}],"about":[{"href":"https:\/\/www.packqc.com\/ro\/wp-json\/wp\/v2\/types\/standard"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.packqc.com\/ro\/wp-json\/wp\/v2\/media\/6415"}],"wp:attachment":[{"href":"https:\/\/www.packqc.com\/ro\/wp-json\/wp\/v2\/media?parent=9848"}],"wp:term":[{"taxonomy":"standard-category","embeddable":true,"href":"https:\/\/www.packqc.com\/ro\/wp-json\/wp\/v2\/standard-category?post=9848"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}