{"id":9311,"date":"2026-02-02T11:23:36","date_gmt":"2026-02-02T03:23:36","guid":{"rendered":"https:\/\/www.packqc.com\/applications\/tear-resistance-test-of-paper\/"},"modified":"2026-03-16T15:14:50","modified_gmt":"2026-03-16T07:14:50","slug":"tear-resistance-test-of-paper","status":"publish","type":"applications","link":"https:\/\/www.packqc.com\/lt\/applications\/tear-resistance-test-of-paper\/","title":{"rendered":"Popieriaus atsparumo ply\u0161imui bandymas"},"content":{"rendered":"<p>The <strong data-start=\"398\" data-end=\"431\">popieriaus atsparumo ply\u0161imui bandymas<\/strong> atlieka labai svarb\u0173 vaidmen\u012f vertinant popieriaus med\u017eiag\u0173 atsparum\u0105 ply\u0161imo j\u0117goms perdirbimo, spausdinimo, pakavimo ir galutinio naudojimo metu. Popierius, kurio atsparumas ply\u0161imui yra nepakankamas, gali sugesti apdorojant ar tvarkant, o per didelis atsparumas ply\u0161imui gali reik\u0161ti prast\u0105 jo tinkamum\u0105 naudoti. <a href=\"https:\/\/www.packqc.com\/lt\/standard\/astm-d689\/\"><strong data-start=\"715\" data-end=\"728\">ASTM D689<\/strong><\/a> nustatomas standartizuotas ir pla\u010diai pripa\u017eintas metodas, skirtas \u012fvertinti <strong data-start=\"805\" data-end=\"836\">popieriaus atsparumas ply\u0161imui<\/strong>, tod\u0117l gamintojai, laboratorijos ir kokyb\u0117s specialistai gali gauti nuoseklius ir palyginamus rezultatus.<\/p>\n\n\n\n<p>Taikant <strong data-start=\"963\" data-end=\"997\">Elmendorfo ply\u0161imo stiprumo testeris<\/strong>, \u0161iuo metodu nustatoma j\u0117ga, kurios reikia, kad kontroliuojamomis s\u0105lygomis popierius b\u016bt\u0173 \u012fpl\u0117\u0161tas. Rezultatai padeda numatyti eksploatacines savybes, palyginti popieriaus r\u016b\u0161is ir optimizuoti med\u017eiagas.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Kod\u0117l svarbus popieriaus atsparumo ply\u0161imui testas<\/h2>\n\n\n\n<p>The <strong data-start=\"1260\" data-end=\"1293\">popieriaus atsparumo ply\u0161imui bandymas<\/strong> matuojamas vidinis pluo\u0161to sukibimo stipris, o ne pavir\u0161iaus savyb\u0117s. Skirtingai nuo tempimo bandym\u0173, kuri\u0173 metu vertinamas atsparumas tempimui, atsparumas ply\u0161imui parodo, kaip gerai pluo\u0161tai atsispiria ply\u0161io plitimui prasid\u0117jus ply\u0161imui. D\u0117l \u0161io skirtumo ASTM D689 standartas yra ypa\u010d vertingas, kai popierius patiria staig\u0173 \u012ftempim\u0105, pjaustym\u0105 ar \u012ftr\u016bkim\u0105.<\/p>\n\n\n\n<p>Pramon\u0117s sektoriai remiasi \u0161iuo testu:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>\u012evertinti patvarum\u0105 perdirbimo ir pakavimo metu<\/li>\n\n\n\n<li>Palyginkite popieriaus kokyb\u0119 \u012fvairiose gamybos partijose<\/li>\n\n\n\n<li>Pagalba kuriant gaminius ir renkantis med\u017eiagas<\/li>\n\n\n\n<li>Atitinka klient\u0173 ir reguliavimo specifikacijas<\/li>\n<\/ul>\n\n\n\n<p>D\u0117l savo \u012frodytos svarbos ASTM D689 glaud\u017eiai susij\u0119s su kitais pasauliniais standartais, tokiais kaip ISO 1974 ir TAPPI T414.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">ASTM D689 ir Elmendorfo ply\u0161imo matavimo principas<\/h2>\n\n\n\n<p><strong data-start=\"2090\" data-end=\"2103\">ASTM D689<\/strong> apibr\u0117\u017eia <strong data-start=\"2114\" data-end=\"2147\">popieriaus atsparumo ply\u0161imui bandymas<\/strong> remiantis Elmendorfo principu. Taikant \u0161\u012f metod\u0105 \u0161vytuokl\u0117 veikia staigia pl\u0117\u0161imo j\u0117ga, statmena popieriaus plok\u0161tumai. Kai \u0161vytuokl\u0117 pertraukia bandin\u012f per nustatyt\u0105 atstum\u0105, ji praranda potencin\u0119 energij\u0105. \u0160is energijos praradimas tiesiogiai susij\u0119s su <strong data-start=\"2410\" data-end=\"2441\">popieriaus atsparumas ply\u0161imui<\/strong>.<\/p>\n\n\n\n<p>An <strong data-start=\"2447\" data-end=\"2481\">Elmendorfo ply\u0161imo stiprumo testeris<\/strong> paver\u010dia \u0161i\u0105 energij\u0105 \u012f kalibruotoje skal\u0117je rodom\u0105 j\u0117gos vert\u0119. Kai kartu bandomi keli sluoksniai, rezultatas parodo vidutin\u0119 kiekvieno sluoksnio j\u0117g\u0105, tod\u0117l u\u017etikrinamas tikslumas net ir lengvo ar labai tvirto popieriaus atveju.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Elmendorfo ply\u0161imo stiprumo testeris ir atitiktis ASTM D689 standartui<\/h2>\n\n\n\n<p>An <strong data-start=\"2779\" data-end=\"2813\">elmendorf a\u0161ar\u0173 stiprumo testeris<\/strong> sukurta pagal ASTM D689 standart\u0105, turi u\u017etikrinti stabil\u0173 \u0161vytuokl\u0117s judes\u012f, tiksl\u0173 prispaudim\u0105 ir tiksl\u0173 skal\u0117s kalibravim\u0105. Tinkamas prietaiso nustatymas u\u017etikrina, kad rezultatai b\u016bt\u0173 pakartojami ir reik\u0161mingi. <strong data-start=\"2997\" data-end=\"3030\">popieriaus atsparumo ply\u0161imui bandymas<\/strong>.<\/p>\n\n\n\n<p>\u0160iuolaikin\u0117s sistemos, pvz. <strong data-start=\"3061\" data-end=\"3100\">Cell Instruments SLD-01 ply\u0161imo testeris<\/strong>, palaikykite ASTM D689 bandymus, si\u016blydami:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Didelis mechaninis stabilumas, u\u017etikrinantis pastov\u0173 ply\u0161im\u0105<\/li>\n\n\n\n<li>Ai\u0161kus skaitmeninis arba analoginis j\u0117gos rodmuo<\/li>\n\n\n\n<li>Lengvas reguliavimas skirtingoms popieriaus r\u016b\u0161ims ir sluoksni\u0173 skai\u010diui<\/li>\n\n\n\n<li>Patikimas veikimas kokyb\u0117s kontrol\u0117s ir mokslini\u0173 tyrim\u0173 bei pl\u0117tros aplinkoje<\/li>\n<\/ul>\n\n\n\n<p>Atitiktinio testerio pasirinkimas turi tiesiogin\u0119 \u012ftak\u0105 bandym\u0173 patikimumui ir ilgalaikiam duomen\u0173 patikimumui.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u017dingsnis po \u017eingsnio popieriaus atsparumo ply\u0161imui bandymo proced\u016bra<\/h2>\n\n\n\n<p>The <strong data-start=\"3534\" data-end=\"3567\">popieriaus atsparumo ply\u0161imui bandymas<\/strong> pagal ASTM D689 standart\u0105 laikomasi strukt\u016brizuotos darbo eigos, kuria siekiama suma\u017einti kintamum\u0105:<\/p>\n\n\n\n<ol class=\"wp-block-list\">\n<li><strong>Pavyzd\u017ei\u0173 kondicionavimas<br><\/strong>Popieriaus pavyzd\u017eiai kondicionuojami standartin\u0117mis atmosferos s\u0105lygomis, kad b\u016bt\u0173 suma\u017einta dr\u0117gm\u0117s ir temperat\u016bros \u012ftaka.<\/li>\n\n\n\n<li><strong>M\u0117ginio paruo\u0161imas<br><\/strong>Atsi\u017evelgiant \u012f popieriaus stiprum\u0105, parenkamas tinkamas sluoksni\u0173 skai\u010dius. Siekiama, kad rodmenys b\u016bt\u0173 artimi optimaliam Elmendorfo skal\u0117s diapazonui.<\/li>\n\n\n\n<li><strong>Priemon\u0117s s\u0105ranka<br><\/strong>\"Elmendorf\" ply\u0161imo stiprumo testeris i\u0161lyginamas, \u0161vytuokl\u0117 pakeliama \u012f pradin\u0119 pad\u0117t\u012f ir rodykl\u0117 nustatoma \u012f nul\u012f.<\/li>\n\n\n\n<li><strong>U\u017espaudimas ir ply\u0161i\u0173 paruo\u0161imas<br><\/strong>Bandinys centruojamas spaustuvuose ir tolygiai pritvirtinamas. Siekiant u\u017etikrinti nuosekl\u0173 \u012ftr\u016bkimo prad\u017ei\u0105, \u012fvedamas pradinis ply\u0161ys.<\/li>\n\n\n\n<li><strong>A\u0161aros vykdymas<br><\/strong>\u0160vytuokl\u0117 paleid\u017eiama ir per tam tikr\u0105 atstum\u0105 nupl\u0117\u0161ia popieri\u0173. Popieriaus atsparumas ply\u0161imui nustatomas pagal \u0161vytuokl\u0117s prarandam\u0105 energij\u0105.<\/li>\n\n\n\n<li><strong>Rezultat\u0173 registravimas<br><\/strong>U\u017era\u0161omi skal\u0117s rodmenys ir sluoksni\u0173 skai\u010dius. Kai taikoma, bandymai atliekami tiek ma\u0161inos, tiek skersine kryptimis.<\/li>\n\n\n\n<li><strong>Rezultat\u0173 patvirtinimas<br><\/strong>Neteisingos a\u0161aros, nukrypstan\u010dios nuo reikalaujamo a\u0161aros kelio, atmetamos, taip i\u0161saugant duomen\u0173 vientisum\u0105.<\/li>\n<\/ol>\n\n\n\n<p>\u0160is sistemingas procesas u\u017etikrina, kad ASTM D689 rezultatai tiksliai atspind\u0117t\u0173 vidin\u012f atsparum\u0105 ply\u0161imui.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">ASTM D689 bandym\u0173 rezultat\u0173 supratimas ir naudojimas<\/h2>\n\n\n\n<p>ASTM D689 rezultatai atspindi <strong data-start=\"4968\" data-end=\"4999\">popieriaus atsparumas ply\u0161imui<\/strong> j\u0117gos vienetais. Ataskaitose paprastai pateikiamos vidutin\u0117s, did\u017eiausios ir ma\u017eiausios kiekvienos i\u0161bandytos krypties vert\u0117s. \u0160ios vert\u0117s padeda naudotojams:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Objektyviai palyginkite popieriaus \u012fvertinimus<\/li>\n\n\n\n<li>Steb\u0117ti gamybos nuoseklum\u0105<\/li>\n\n\n\n<li>Galutinio naudojimo rezultat\u0173 prognozavimas<\/li>\n\n\n\n<li>Nustatyti pluo\u0161to orientacijos poveik\u012f<\/li>\n<\/ul>\n\n\n\n<p>Atliekant tempimo, ply\u0161imo ar lankstymo bandymus, galima <strong data-start=\"5336\" data-end=\"5369\">popieriaus atsparumo ply\u0161imui bandymas<\/strong> prisideda prie i\u0161samaus stiprumo profilio k\u016brimo.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">DUK<\/h2>\n\n\n\n<p>1 klausimas: Koks yra popieriaus atsparumo ply\u0161imui testas?<\/p>\n\n\n\n<p>The <strong data-start=\"206\" data-end=\"239\">popieriaus atsparumo ply\u0161imui bandymas<\/strong> kontroliuojamuoju metodu matuojama j\u0117ga, reikalinga popieriaus lapui supl\u0117\u0161yti. Atliekant \u0161\u012f bandym\u0105 \u012fvertinamas popieriaus patvarumas ir prognozuojamos jo eksploatacin\u0117s savyb\u0117s spausdinimo, pakavimo ir kitose srityse.<\/p>\n\n\n\n<p>2 klausimas: Kokius popieriaus tipus galima i\u0161bandyti naudojant <a href=\"https:\/\/store.astm.org\/d0689-17r24.html\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">ASTM D689<\/a>?<\/p>\n\n\n\n<p>Standartas tinka \u012fvairiam popieriui, \u012fskaitant spausdinimo ir ra\u0161ymo popieri\u0173, pakavimo med\u017eiagas, pramoninius lak\u0161tus ir padengt\u0105 arba nepadengt\u0105 popieri\u0173. Labai kryptingiems kartonams gali prireikti alternatyvi\u0173 bandym\u0173.<\/p>\n\n\n\n<p>3 klausimas: Kaip veikia \"Elmendorf\" ply\u0161imo stiprumo testeris?<\/p>\n\n\n\n<p>The <strong data-start=\"1039\" data-end=\"1073\">Elmendorfo ply\u0161imo stiprumo testeris<\/strong> \u0161vytuokle atpl\u0117\u0161ia popieri\u0173. \u0160vytuokl\u0117s prarandama energija paver\u010diama rodmeniu, atspindin\u010diu <strong data-start=\"1185\" data-end=\"1216\">popieriaus atsparumas ply\u0161imui<\/strong>. \u0160iuolaikiniai testeriai, tokie kaip Cell Instruments SLD-01, u\u017etikrina tikslius ir pakartojamus rezultatus.<\/p>\n\n\n\n<p>4 klausimas: Kaip reik\u0117t\u0173 paruo\u0161ti bandinius tyrimams?<\/p>\n\n\n\n<p>Bandiniai tur\u0117t\u0173 b\u016bti kondicionuojami standartin\u0117mis atmosferos s\u0105lygomis. Sluoksni\u0173 skai\u010dius parenkamas pagal gaminio specifikacijas, o sluoksniai turi b\u016bti nuosekliai orientuoti. Siekiant kontroliuoti ply\u0161imo prad\u017ei\u0105, \u012fvestas nedidelis ply\u0161ys.<\/p>\n\n\n\n<p><\/p>","protected":false},"excerpt":{"rendered":"<p>The tear resistance test of paper plays a critical role in evaluating how paper materials withstand tearing forces during converting, printing, packaging, and end use. Paper with insufficient tearing resistance may fail during processing or handling, while excessive tearing resistance can indicate poor runnability. ASTM D689 establishes a standardized and widely recognized approach for measuring [&hellip;]<\/p>","protected":false},"featured_media":8716,"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-9311","applications","type-applications","status-publish","has-post-thumbnail","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.packqc.com\/lt\/wp-json\/wp\/v2\/applications\/9311","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.packqc.com\/lt\/wp-json\/wp\/v2\/applications"}],"about":[{"href":"https:\/\/www.packqc.com\/lt\/wp-json\/wp\/v2\/types\/applications"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.packqc.com\/lt\/wp-json\/wp\/v2\/media\/8716"}],"wp:attachment":[{"href":"https:\/\/www.packqc.com\/lt\/wp-json\/wp\/v2\/media?parent=9311"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}