{"id":9841,"date":"2026-02-24T15:11:45","date_gmt":"2026-02-24T07:11:45","guid":{"rendered":"https:\/\/www.packqc.com\/standard\/iso-8295-2\/"},"modified":"2026-03-13T15:25:46","modified_gmt":"2026-03-13T07:25:46","slug":"iso-8295","status":"publish","type":"standard","link":"https:\/\/www.packqc.com\/cs\/standard\/iso-8295\/","title":{"rendered":"ISO 8295"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Norma ISO 8295 je d\u016fle\u017eit\u00e1 pro v\u00fdrobce plastov\u00fdch f\u00f3li\u00ed<\/h2>\n\n\n\n<p>Pro v\u00fdrobce f\u00f3li\u00ed a zpracovatele obal\u016f, <strong data-start=\"2773\" data-end=\"2785\">ISO 8295<\/strong> testov\u00e1n\u00ed je z\u00e1kladn\u00edm kamenem <strong data-start=\"2814\" data-end=\"2833\">kontrola kvality<\/strong>. Kluznost plastov\u00fdch f\u00f3li\u00ed - a\u0165 u\u017e se jedn\u00e1 o polyethylen, polypropylen, polyester nebo v\u00edcevrstv\u00e9 lamin\u00e1ty - se m\u016f\u017ee m\u011bnit v d\u016fsledku:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>migrace aditiv (nap\u0159. kluzn\u00fdch l\u00e1tek, jako je erukamid)<\/li>\n\n\n\n<li>Povrchov\u00e9 \u00fapravy (nap\u0159. kor\u00f3na, plazma)<\/li>\n\n\n\n<li>P\u016fsoben\u00ed prost\u0159ed\u00ed (st\u00e1rnut\u00ed nebo vlhkost)<\/li>\n\n\n\n<li>Podm\u00ednky manipulace b\u011bhem p\u0159epravy a zpracov\u00e1n\u00ed<\/li>\n<\/ul>\n\n\n\n<p>P\u0159esn\u00e9 m\u011b\u0159en\u00ed COF pom\u00e1h\u00e1 zajistit, aby f\u00f3lie dob\u0159e fungovala po celou dobu sv\u00e9ho \u017eivotn\u00edho cyklu - od zpracov\u00e1n\u00ed a tisku a\u017e po zataven\u00ed a kone\u010dnou aplikaci.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Koeficient t\u0159en\u00ed f\u00f3lie a COF plastov\u00e9 f\u00f3lie v obalech<\/h2>\n\n\n\n<p>The <strong data-start=\"944\" data-end=\"979\">sou\u010dinitel t\u0159en\u00ed filmu<\/strong>, \u010dasto ozna\u010dovan\u00e9 jako <strong data-start=\"1002\" data-end=\"1025\">COF plastov\u00e9 f\u00f3lie<\/strong>, m\u011b\u0159\u00ed, jak snadno jedna vrstva filmu klou\u017ee po druh\u00e9. Tato vlastnost v\u00fdznamn\u011b ovliv\u0148uje zpracovatelnost na za\u0159\u00edzen\u00edch pro formov\u00e1n\u00ed a uzav\u00edr\u00e1n\u00ed f\u00f3li\u00ed, na link\u00e1ch pro balen\u00ed do s\u00e1\u010dk\u016f a v automatizovan\u00fdch procesech stohov\u00e1n\u00ed. \u0160patn\u00e9 kluzn\u00e9 vlastnosti mohou v\u00e9st k zaseknut\u00ed za\u0159\u00edzen\u00ed nebo nespr\u00e1vn\u00e9mu pod\u00e1v\u00e1n\u00ed, zat\u00edmco p\u0159\u00edli\u0161 kluzk\u00e9 f\u00f3lie mohou zp\u016fsobit probl\u00e9my se zatavov\u00e1n\u00edm nebo \u0161patn\u00e9 vyrovn\u00e1n\u00ed v\u00fdrobk\u016f.<\/p>\n\n\n\n<p><strong data-start=\"1365\" data-end=\"1377\">ISO 8295<\/strong> poskytuje standardizovanou metodu testov\u00e1n\u00ed jak <strong data-start=\"1439\" data-end=\"1449\">statick\u00fd<\/strong> a <strong data-start=\"1454\" data-end=\"1490\">dynamick\u00e9 koeficienty t\u0159en\u00ed<\/strong>:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong data-start=\"1495\" data-end=\"1509\">Statick\u00fd COF<\/strong> (\u03bcs) m\u011b\u0159\u00ed odpor na za\u010d\u00e1tku pohybu.<\/li>\n\n\n\n<li><strong data-start=\"1565\" data-end=\"1580\">Dynamick\u00fd COF<\/strong> (\u03bcd) m\u011b\u0159\u00ed odpor p\u0159i pokra\u010duj\u00edc\u00edm klouz\u00e1n\u00ed.<\/li>\n<\/ul>\n\n\n\n<p>Toto rozli\u0161en\u00ed je z\u00e1sadn\u00ed pro aplikace, jako je vertik\u00e1ln\u00ed t\u011bsn\u011bn\u00ed (VFFS), kde obalov\u00e9 f\u00f3lie mus\u00ed zah\u00e1jit a udr\u017eet plynul\u00fd pohyb p\u0159i zat\u00ed\u017een\u00ed.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">P\u0159ehled zku\u0161ebn\u00ed metody ISO 8295<\/h2>\n\n\n\n<p>Norma ISO 8295 popisuje laboratorn\u00ed metodu hodnocen\u00ed kluzn\u00fdch vlastnost\u00ed posouv\u00e1n\u00edm san\u00ed po zku\u0161ebn\u00edm vzorku um\u00edst\u011bn\u00e9m na vodorovn\u00e9m zku\u0161ebn\u00edm povrchu. P\u0159\u00edstroj obecn\u011b zahrnuje:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A <strong data-start=\"2025\" data-end=\"2033\">s\u00e1n\u011b<\/strong> se standardizovanou hmotnost\u00ed (obvykle 200 g \u00b129 g) a kontaktn\u00ed plochou.<\/li>\n\n\n\n<li>A <strong data-start=\"2105\" data-end=\"2124\">motorizovan\u00e9 jevi\u0161t\u011b<\/strong> nebo na tahov\u00e9m zku\u0161ebn\u00edm stroji pro rovnom\u011brn\u00fd pohyb.<\/li>\n\n\n\n<li>A <strong data-start=\"2183\" data-end=\"2209\">za\u0159\u00edzen\u00ed pro m\u011b\u0159en\u00ed s\u00edly<\/strong> k zaznamen\u00e1n\u00ed t\u0159ec\u00edho odporu.<\/li>\n<\/ul>\n\n\n\n<p>Mezi kl\u00ed\u010dov\u00e9 parametry definovan\u00e9 v norm\u011b ISO 8295 pat\u0159\u00ed:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong data-start=\"2291\" data-end=\"2306\">Testovac\u00ed rychlost:<\/strong> Norm\u00e1ln\u011b 100 mm\/min \u00b110 mm\/min<\/li>\n\n\n\n<li><strong data-start=\"2340\" data-end=\"2372\">Doba kontaktu p\u0159ed sklouznut\u00edm:<\/strong> 15 sekund<\/li>\n\n\n\n<li><strong data-start=\"2386\" data-end=\"2410\">Uk\u00e1zka kondicionov\u00e1n\u00ed:<\/strong> 23 \u00b0C, 50% relativn\u00ed vlhkosti po dobu nejm\u00e9n\u011b 16 hodin podle ISO 291.<\/li>\n<\/ul>\n\n\n\n<p>M\u011b\u0159en\u00ed se obvykle prov\u00e1d\u00ed na v\u00edce p\u00e1rech film\u016f, aby byla zaji\u0161t\u011bna statistick\u00e1 p\u0159esnost. V\u00fdsledky pom\u00e1haj\u00ed posoudit rovnom\u011brnost v\u00fdrobn\u00ed \u0161ar\u017ee nebo porovnat p\u0159\u00edpravky s r\u016fzn\u00fdmi kluzn\u00fdmi l\u00e1tkami.<\/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=\"Jak\u00e1 je zku\u0161ebn\u00ed metoda pro stanoven\u00ed sou\u010dinitele t\u0159en\u00ed?\" width=\"500\" height=\"281\" src=\"https:\/\/www.youtube.com\/embed\/NUgXENOz8J0?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\">B\u011b\u017en\u00e9 aplikace testov\u00e1n\u00ed podle normy ISO 8295<\/h2>\n\n\n\n<p>Mezi odv\u011btv\u00ed, kter\u00e1 pou\u017e\u00edvaj\u00ed \u00fadaje ISO 8295 COF, pat\u0159\u00ed:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong data-start=\"3408\" data-end=\"3427\">Obaly na potraviny:<\/strong> Optimalizace vertik\u00e1ln\u00edch a horizont\u00e1ln\u00edch syst\u00e9m\u016f pytlov\u00e1n\u00ed<\/li>\n\n\n\n<li><strong data-start=\"3482\" data-end=\"3511\">Obaly pro zdravotnick\u00e9 prost\u0159edky:<\/strong> Zaji\u0161t\u011bn\u00ed toho, aby se steriln\u00ed bari\u00e9rov\u00e9 obaly nelepily nebo nadm\u011brn\u011b neposouvaly.<\/li>\n\n\n\n<li><strong data-start=\"3584\" data-end=\"3614\">Samolepic\u00ed \u0161t\u00edtky a p\u00e1sky:<\/strong> Kde v\u00fdkonnost separa\u010dn\u00ed vlo\u017eky z\u00e1vis\u00ed na t\u0159ec\u00edch vlastnostech<\/li>\n\n\n\n<li><strong data-start=\"3685\" data-end=\"3714\">Farmaceutick\u00e9 obaly:<\/strong> Zachov\u00e1n\u00ed rozm\u011brov\u00e9 stability p\u0159i balen\u00ed do blistr\u016f<\/li>\n<\/ul>\n\n\n\n<p>Pochopen\u00ed COF tak\u00e9 podporuje <strong data-start=\"3809\" data-end=\"3834\">dodr\u017eov\u00e1n\u00ed p\u0159edpis\u016f<\/strong>, zejm\u00e9na pokud jde o opracovatelnost a bezpe\u010dnost.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">V\u00fdb\u011br spr\u00e1vn\u00e9ho testeru sou\u010dinitele t\u0159en\u00ed<\/h2>\n\n\n\n<p>Chcete-li ve sv\u00e9 laborato\u0159i zav\u00e9st normu ISO 8295, pot\u0159ebujete p\u0159esn\u00e9 p\u0159\u00edstrojov\u00e9 vybaven\u00ed, kter\u00e9 spl\u0148uje po\u017eadavky normy. Na str\u00e1nk\u00e1ch <strong data-start=\"4086\" data-end=\"4137\"><a href=\"https:\/\/www.packqc.com\/cs\/\">Bun\u011b\u010dn\u00e9 n\u00e1stroje<\/a> Tester koeficientu t\u0159en\u00ed<\/strong> je navr\u017een tak, aby:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>P\u0159esn\u00e9 m\u011b\u0159en\u00ed statick\u00e9 i dynamick\u00e9 COF<\/li>\n\n\n\n<li>Podpora testov\u00e1n\u00ed t\u0159en\u00ed f\u00f3li\u00ed o f\u00f3lie, kovov\u00e9 nebo jin\u00e9 povrchy.<\/li>\n\n\n\n<li>Nab\u00eddka programovateln\u00fdch testovac\u00edch rychlost\u00ed a konfigurac\u00ed zat\u00ed\u017een\u00ed<\/li>\n\n\n\n<li>Digit\u00e1ln\u00ed v\u00fdstupy pro snadnou anal\u00fdzu dat a dokumentaci kvality<\/li>\n<\/ul>\n\n\n\n<p>A\u0165 u\u017e testujete polyethylenovou f\u00f3lii, BOPP, PET nebo v\u00edcevrstv\u00e9 lamin\u00e1ty, testery Cell Instruments zaji\u0161\u0165uj\u00ed. <strong data-start=\"4523\" data-end=\"4537\">opakovateln\u00e9<\/strong>, <strong data-start=\"4539\" data-end=\"4561\">v souladu se standardem<\/strong>a <strong data-start=\"4567\" data-end=\"4601\">vysoce p\u0159esn\u00e9 m\u011b\u0159en\u00ed COF<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\n\t\t\t\tKontaktujte n\u00e1s Z\u00edskejte \u0159e\u0161en\u00ed pro testov\u00e1n\u00ed koeficientu t\u0159en\u00ed\t\t\t\t<\/h2>\n\n\n\n<p>A\u0165 u\u017e jste v <strong data-start=\"5354\" data-end=\"5417\">v\u00fdroba plast\u016f, pap\u00edru, obal\u016f nebo zdravotnick\u00fdch prost\u0159edk\u016f.<\/strong>, pochopen\u00ed a uplat\u0148ov\u00e1n\u00ed normy ISO 8295 v\u00e1m poskytne konkuren\u010dn\u00ed v\u00fdhodu. Se spr\u00e1vn\u00fdm <strong data-start=\"5506\" data-end=\"5540\">tester sou\u010dinitele t\u0159en\u00ed<\/strong> jako je <a href=\"https:\/\/www.packqc.com\/cs\/product\/coefficient-of-friction-testing-equipment\/\"><strong>COF-01 <\/strong><\/a>od spole\u010dnosti Cell Instruments bude v\u00e1\u0161 provoz konzistentn\u011bj\u0161\u00ed, efektivn\u011bj\u0161\u00ed a v souladu s p\u0159edpisy.<\/p>\n\n\n\n<p>Kontakt <strong>Bun\u011b\u010dn\u00e9 n\u00e1stroje<\/strong> a dozv\u00edte se, jak mohou na\u0161e \u0159e\u0161en\u00ed zlep\u0161it va\u0161e mo\u017enosti testov\u00e1n\u00ed a kvalitu v\u00fdrobk\u016f.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Nej\u010dast\u011bj\u0161\u00ed dotazy<\/h2>\n\n\n\n<p>1. K \u010demu se pou\u017e\u00edv\u00e1 norma ISO 8295?<br>Norma ISO 8295 se pou\u017e\u00edv\u00e1 k m\u011b\u0159en\u00ed statick\u00fdch a dynamick\u00fdch koeficient\u016f t\u0159en\u00ed plastov\u00fdch f\u00f3li\u00ed a f\u00f3li\u00ed, co\u017e pom\u00e1h\u00e1 posoudit kluzn\u00e9 vlastnosti p\u0159i zpracov\u00e1n\u00ed a manipulaci.<\/p>\n\n\n\n<p>2. Pro\u010d je COF u obalov\u00fdch f\u00f3li\u00ed d\u016fle\u017eit\u00fd?<br>Koeficient t\u0159en\u00ed ovliv\u0148uje obrobitelnost, stohov\u00e1n\u00ed, t\u011bsn\u011bn\u00ed a p\u0159epravu f\u00f3li\u00ed. Spr\u00e1vn\u00fd koeficient soudr\u017enosti zaji\u0161\u0165uje bezprobl\u00e9mov\u00e9 zpracov\u00e1n\u00ed a zabra\u0148uje probl\u00e9m\u016fm, jako je lepen\u00ed nebo nespr\u00e1vn\u00e9 pod\u00e1v\u00e1n\u00ed.<\/p>\n\n\n\n<p>3. Jak ovliv\u0148uj\u00ed aditiva COF?<br>Kluzn\u00e9 p\u0159\u00edsady \u010dasem migruj\u00ed na povrch a sni\u017euj\u00ed t\u0159en\u00ed. Jejich \u00fa\u010dinek se v\u0161ak m\u016f\u017ee m\u011bnit v z\u00e1vislosti na st\u00e1\u0159\u00ed, vlhkosti a slo\u017een\u00ed, a proto je testov\u00e1n\u00ed COF kl\u00ed\u010dov\u00e9.<\/p>\n\n\n\n<p>4. M\u016f\u017ee <a href=\"https:\/\/www.iso.org\/standard\/20760.html\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">ISO 8295<\/a> be used for non-film materials?<br>Je prim\u00e1rn\u011b ur\u010den pro plastov\u00e9 f\u00f3lie o tlou\u0161\u0165ce do 0,5 mm, ale po \u00faprav\u00e1ch m\u016f\u017ee testovat i f\u00f3lie na kovu, pap\u00edru nebo jin\u00fdch podkladech.<\/p>\n\n\n\n<p><\/p>","protected":false},"featured_media":6059,"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-9841","standard","type-standard","status-publish","has-post-thumbnail","hentry"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.packqc.com\/cs\/wp-json\/wp\/v2\/standard\/9841","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.packqc.com\/cs\/wp-json\/wp\/v2\/standard"}],"about":[{"href":"https:\/\/www.packqc.com\/cs\/wp-json\/wp\/v2\/types\/standard"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.packqc.com\/cs\/wp-json\/wp\/v2\/media\/6059"}],"wp:attachment":[{"href":"https:\/\/www.packqc.com\/cs\/wp-json\/wp\/v2\/media?parent=9841"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}