{"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\/sk\/standard\/iso-8295\/","title":{"rendered":"ISO 8295"},"content":{"rendered":"<h2 class=\"wp-block-heading\">Norma ISO 8295 je d\u00f4le\u017eit\u00e1 pre v\u00fdrobcov plastov\u00fdch f\u00f3li\u00ed<\/h2>\n\n\n\n<p>Pre v\u00fdrobcov f\u00f3li\u00ed a spracovate\u013eov obalov, <strong data-start=\"2773\" data-end=\"2785\">ISO 8295<\/strong> testovanie je z\u00e1kladom <strong data-start=\"2814\" data-end=\"2833\">kontrola kvality<\/strong>. K\u013azavos\u0165 plastov\u00fdch f\u00f3li\u00ed - \u010di u\u017e ide o polyetyl\u00e9n, polypropyl\u00e9n, polyester alebo viacvrstvov\u00e9 lamin\u00e1ty - sa m\u00f4\u017ee meni\u0165 v d\u00f4sledku:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>migr\u00e1cia adit\u00edv (napr. klzn\u00e9 l\u00e1tky ako erukamid)<\/li>\n\n\n\n<li>Povrchov\u00e9 \u00fapravy (napr. kor\u00f3na, plazma)<\/li>\n\n\n\n<li>vystavenie vplyvu prostredia (starnutie alebo vlhkos\u0165)<\/li>\n\n\n\n<li>Podmienky manipul\u00e1cie po\u010das prepravy a spracovania<\/li>\n<\/ul>\n\n\n\n<p>Presn\u00e9 merania COF pom\u00e1haj\u00fa zabezpe\u010di\u0165 dobr\u00e9 fungovanie f\u00f3lie po\u010das cel\u00e9ho jej \u017eivotn\u00e9ho cyklu - od konverzie a tla\u010de a\u017e po tesnenie a kone\u010dn\u00fa aplik\u00e1ciu.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Koeficient trenia f\u00f3lie a COF plastovej f\u00f3lie v obaloch<\/h2>\n\n\n\n<p>The <strong data-start=\"944\" data-end=\"979\">koeficient trenia filmu<\/strong>, \u010dasto ozna\u010dovan\u00e9 ako <strong data-start=\"1002\" data-end=\"1025\">COF plastovej f\u00f3lie<\/strong>, meria, ako \u013eahko sa jedna vrstva filmu pos\u00fava po druhej. T\u00e1to vlastnos\u0165 v\u00fdznamne ovplyv\u0148uje spracovate\u013enos\u0165 na zariadeniach na uzatv\u00e1ranie tvarovan\u00fdch f\u00f3li\u00ed, na link\u00e1ch na v\u00fdrobu vreciek a pri automatizovan\u00fdch procesoch stohovania. Zl\u00e9 klzn\u00e9 vlastnosti m\u00f4\u017eu vies\u0165 k zaseknutiu zariadenia alebo nespr\u00e1vnemu pod\u00e1vaniu, zatia\u013e \u010do pr\u00edli\u0161 klzk\u00e9 f\u00f3lie m\u00f4\u017eu sp\u00f4sobi\u0165 probl\u00e9my so zatavovan\u00edm alebo nespr\u00e1vne nastavenie v\u00fdrobku.<\/p>\n\n\n\n<p><strong data-start=\"1365\" data-end=\"1377\">ISO 8295<\/strong> poskytuje \u0161tandardizovan\u00fa met\u00f3du na testovanie <strong data-start=\"1439\" data-end=\"1449\">statick\u00e9<\/strong> a <strong data-start=\"1454\" data-end=\"1490\">dynamick\u00e9 koeficienty trenia<\/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) meria odpor na za\u010diatku pohybu.<\/li>\n\n\n\n<li><strong data-start=\"1565\" data-end=\"1580\">Dynamick\u00e9 COF<\/strong> (\u03bcd) meria odpor po\u010das pokra\u010duj\u00faceho pos\u00favania.<\/li>\n<\/ul>\n\n\n\n<p>Toto rozl\u00ed\u0161enie je d\u00f4le\u017eit\u00e9 pre aplik\u00e1cie, ako je napr\u00edklad vertik\u00e1lne tesnenie (VFFS), kde sa obalov\u00e9 f\u00f3lie musia za\u010da\u0165 a udr\u017ea\u0165 plynul\u00fd pohyb pri za\u0165a\u017een\u00ed.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">Preh\u013ead sk\u00fa\u0161obnej met\u00f3dy ISO 8295<\/h2>\n\n\n\n<p>Norma ISO 8295 opisuje laborat\u00f3rnu met\u00f3du na hodnotenie klzn\u00fdch vlastnost\u00ed pos\u00favan\u00edm san\u00ed po sk\u00fa\u0161obnej vzorke umiestnenej na vodorovnom sk\u00fa\u0161obnom povrchu. Pr\u00edstroj vo v\u0161eobecnosti zah\u0155\u0148a:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>A <strong data-start=\"2025\" data-end=\"2033\">sane<\/strong> so \u0161tandardizovanou hmotnos\u0165ou (zvy\u010dajne 200 g \u00b129 g) a kontaktnou plochou.<\/li>\n\n\n\n<li>A <strong data-start=\"2105\" data-end=\"2124\">motorizovan\u00e9 javisko<\/strong> alebo stroj na sk\u00fa\u0161anie \u0165ahom, aby sa dosiahol rovnomern\u00fd pohyb.<\/li>\n\n\n\n<li>A <strong data-start=\"2183\" data-end=\"2209\">zariadenie na meranie sily<\/strong> na zaznamenanie trecieho odporu.<\/li>\n<\/ul>\n\n\n\n<p>K\u013e\u00fa\u010dov\u00e9 parametre definovan\u00e9 v norme ISO 8295 zah\u0155\u0148aj\u00fa:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong data-start=\"2291\" data-end=\"2306\">Testovacia r\u00fdchlos\u0165:<\/strong> Norm\u00e1lne 100 mm\/min \u00b110 mm\/min<\/li>\n\n\n\n<li><strong data-start=\"2340\" data-end=\"2372\">\u010cas kontaktu pred posunut\u00edm:<\/strong> 15 sek\u00fand<\/li>\n\n\n\n<li><strong data-start=\"2386\" data-end=\"2410\">Vzorka klimatiz\u00e1cie:<\/strong> 23 \u00b0C, 50% relat\u00edvna vlhkos\u0165 po\u010das najmenej 16 hod\u00edn pod\u013ea ISO 291<\/li>\n<\/ul>\n\n\n\n<p>Merania sa zvy\u010dajne vykon\u00e1vaj\u00fa na viacer\u00fdch p\u00e1roch filmov, aby sa zabezpe\u010dila \u0161tatistick\u00e1 presnos\u0165. V\u00fdsledky pom\u00e1haj\u00fa pos\u00fadi\u0165 rovnomernos\u0165 v r\u00e1mci v\u00fdrobnej d\u00e1vky alebo porovna\u0165 pr\u00edpravky s r\u00f4znymi klzn\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=\"Ak\u00e1 je sk\u00fa\u0161obn\u00e1 met\u00f3da pre koeficient trenia?\" 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\">Be\u017en\u00e9 aplik\u00e1cie testovania pod\u013ea normy ISO 8295<\/h2>\n\n\n\n<p>Medzi odvetvia, ktor\u00e9 pou\u017e\u00edvaj\u00fa \u00fadaje COF pod\u013ea normy ISO 8295, patria:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li><strong data-start=\"3408\" data-end=\"3427\">Obaly na potraviny:<\/strong> Optimaliz\u00e1cia vertik\u00e1lnych a horizont\u00e1lnych vrecov\u00fdch syst\u00e9mov<\/li>\n\n\n\n<li><strong data-start=\"3482\" data-end=\"3511\">Obaly na zdravotn\u00edcke pom\u00f4cky:<\/strong> Zabezpe\u010denie toho, aby sa steriln\u00e9 bari\u00e9rov\u00e9 obaly nadmerne nelepili alebo nepos\u00favali<\/li>\n\n\n\n<li><strong data-start=\"3584\" data-end=\"3614\">Lepiace \u0161t\u00edtky a p\u00e1sky:<\/strong> Ak v\u00fdkon uvo\u013e\u0148ovacej vlo\u017eky z\u00e1vis\u00ed od trec\u00edch vlastnost\u00ed<\/li>\n\n\n\n<li><strong data-start=\"3685\" data-end=\"3714\">Farmaceutick\u00e9 obaly:<\/strong> Zachovanie rozmerovej stability po\u010das balenia do blistrov<\/li>\n<\/ul>\n\n\n\n<p>Pochopenie COF podporuje aj <strong data-start=\"3809\" data-end=\"3834\">dodr\u017eiavanie pr\u00e1vnych predpisov<\/strong>, najm\u00e4 pokia\u013e ide o opracovate\u013enos\u0165 a bezpe\u010dnos\u0165.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">V\u00fdber spr\u00e1vneho testera koeficientu trenia<\/h2>\n\n\n\n<p>Na implement\u00e1ciu normy ISO 8295 vo va\u0161om laborat\u00f3riu potrebujete presn\u00e9 pr\u00edstroje, ktor\u00e9 sp\u013a\u0148aj\u00fa po\u017eiadavky normy. Na str\u00e1nke <strong data-start=\"4086\" data-end=\"4137\"><a href=\"https:\/\/www.packqc.com\/sk\/\">Cell Instruments<\/a> Tester koeficientu trenia<\/strong> je ur\u010den\u00fd na:<\/p>\n\n\n\n<ul class=\"wp-block-list\">\n<li>Presn\u00e9 meranie statickej aj dynamickej COF<\/li>\n\n\n\n<li>Podpora testovania trenia f\u00f3li\u00ed o f\u00f3liu, kov alebo in\u00e9 povrchy<\/li>\n\n\n\n<li>Ponuka programovate\u013en\u00fdch testovac\u00edch r\u00fdchlost\u00ed a konfigur\u00e1ci\u00ed za\u0165a\u017eenia<\/li>\n\n\n\n<li>Poskytovanie digit\u00e1lnych v\u00fdstupov na jednoduch\u00fa anal\u00fdzu \u00fadajov a kvalitn\u00fa dokument\u00e1ciu<\/li>\n<\/ul>\n\n\n\n<p>\u010ci u\u017e testujete polyetyl\u00e9nov\u00fa f\u00f3liu, BOPP, PET alebo viacvrstvov\u00e9 lamin\u00e1ty, testery Cell Instruments zaru\u010duj\u00fa <strong data-start=\"4523\" data-end=\"4537\">opakovate\u013en\u00e9<\/strong>, <strong data-start=\"4539\" data-end=\"4561\">v s\u00falade so \u0161tandardom<\/strong>, a <strong data-start=\"4567\" data-end=\"4601\">vysoko presn\u00e9 meranie COF<\/strong>.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\n\t\t\t\tKontaktujte n\u00e1s Z\u00edskajte rie\u0161enie na testovanie koeficientu trenia\t\t\t\t<\/h2>\n\n\n\n<p>\u010ci u\u017e ste v <strong data-start=\"5354\" data-end=\"5417\">v\u00fdroba plastov, papiera, obalov alebo zdravotn\u00edckych pom\u00f4cok<\/strong>, pochopenie a uplat\u0148ovanie normy ISO 8295 v\u00e1m poskytne konkuren\u010dn\u00fa v\u00fdhodu. So spr\u00e1vnym <strong data-start=\"5506\" data-end=\"5540\">tester koeficientu trenia<\/strong> ako je <a href=\"https:\/\/www.packqc.com\/sk\/product\/coefficient-of-friction-testing-equipment\/\"><strong>COF-01 <\/strong><\/a>od spolo\u010dnosti Cell Instruments bud\u00fa va\u0161e oper\u00e1cie konzistentnej\u0161ie, efekt\u00edvnej\u0161ie a v s\u00falade s predpismi.<\/p>\n\n\n\n<p>Kontakt <strong>Cell Instruments<\/strong> a dozviete sa, ako m\u00f4\u017eu na\u0161e rie\u0161enia zlep\u0161i\u0165 va\u0161e mo\u017enosti testovania a kvalitu v\u00fdrobkov.<\/p>\n\n\n\n<h2 class=\"wp-block-heading\">\u010dasto kladen\u00e9 ot\u00e1zky<\/h2>\n\n\n\n<p>1. Na \u010do sa pou\u017e\u00edva norma ISO 8295?<br>Norma ISO 8295 sa pou\u017e\u00edva na meranie statick\u00fdch a dynamick\u00fdch koeficientov trenia plastov\u00fdch f\u00f3li\u00ed a f\u00f3li\u00ed, ktor\u00e9 pom\u00e1haj\u00fa pos\u00fadi\u0165 klzn\u00e9 vlastnosti pri spracovan\u00ed a manipul\u00e1cii.<\/p>\n\n\n\n<p>2. Pre\u010do je COF d\u00f4le\u017eit\u00fd pri baliacich f\u00f3li\u00e1ch?<br>Koeficient trenia ovplyv\u0148uje obrobite\u013enos\u0165, stohovanie, tesnenie a prepravu f\u00f3li\u00ed. Spr\u00e1vne COF zabezpe\u010duje hladk\u00e9 spracovanie a zabra\u0148uje probl\u00e9mom, ako je lepenie alebo nespr\u00e1vne pod\u00e1vanie.<\/p>\n\n\n\n<p>3. Ako ovplyv\u0148uj\u00fa pr\u00edsady COF?<br>Proti\u0161mykov\u00e9 pr\u00edsady \u010dasom migruj\u00fa na povrch a zni\u017euj\u00fa trenie. Ich \u00fa\u010dinok sa v\u0161ak m\u00f4\u017ee meni\u0165 v z\u00e1vislosti od veku, vlhkosti a zlo\u017eenia, preto je testovanie COF ve\u013emi d\u00f4le\u017eit\u00e9.<\/p>\n\n\n\n<p>4. M\u00f4\u017ee <a href=\"https:\/\/www.iso.org\/standard\/20760.html\" target=\"_blank\" rel=\"noreferrer noopener nofollow\">ISO 8295<\/a> pou\u017ei\u0165 pre nef\u00f3liov\u00e9 materi\u00e1ly?<br>Prim\u00e1rne je ur\u010den\u00fd pre plastov\u00e9 f\u00f3lie s hr\u00fabkou do 0,5 mm, ale po \u00faprave m\u00f4\u017ee testova\u0165 aj f\u00f3lie na kov, papier alebo in\u00e9 podklady.<\/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\/sk\/wp-json\/wp\/v2\/standard\/9841","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.packqc.com\/sk\/wp-json\/wp\/v2\/standard"}],"about":[{"href":"https:\/\/www.packqc.com\/sk\/wp-json\/wp\/v2\/types\/standard"}],"wp:featuredmedia":[{"embeddable":true,"href":"https:\/\/www.packqc.com\/sk\/wp-json\/wp\/v2\/media\/6059"}],"wp:attachment":[{"href":"https:\/\/www.packqc.com\/sk\/wp-json\/wp\/v2\/media?parent=9841"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}