{"id":921,"date":"2025-12-11T13:58:58","date_gmt":"2025-12-11T13:58:58","guid":{"rendered":"https:\/\/www.materialstests.com\/?p=921"},"modified":"2025-12-11T13:58:59","modified_gmt":"2025-12-11T13:58:59","slug":"standard-test-method-for-peel-cling-of-stretch-wrap-film","status":"publish","type":"post","link":"https:\/\/www.materialstests.com\/cs\/news\/standard-test-method-for-peel-cling-of-stretch-wrap-film.html","title":{"rendered":"Standardn\u00ed zku\u0161ebn\u00ed metoda pro odlepov\u00e1n\u00ed stre\u010dov\u00e9 f\u00f3lie"},"content":{"rendered":"

Norma ASTM D5458 stanovuje standardizovan\u00e1 zkou\u0161ka odlupov\u00e1n\u00ed<\/a><\/strong> kvantifikovat adhezn\u00ed interakci mezi dv\u011bma vrstvami stretch f\u00f3lie v nata\u017een\u00e9m i nenata\u017een\u00e9m stavu. Metoda popisuje podrobn\u00e9 postupy pro p\u0159\u00edpravu vzork\u016f, nastaven\u00ed p\u0159\u00edstroje, proveden\u00ed zkou\u0161ky a anal\u00fdzu dat, aby byla zaji\u0161t\u011bna konzistence a srovnatelnost v\u00fdsledk\u016f v r\u016fzn\u00fdch laborato\u0159\u00edch a u r\u016fzn\u00fdch dodavatel\u016f. Kl\u00ed\u010dov\u00e9 vybaven\u00ed zahrnuje univerz\u00e1ln\u00ed zku\u0161ebn\u00ed stroj vybaven\u00fd specializovan\u00fdm p\u0159\u00edpravkem pro p\u0159ilnavost v naklon\u011bn\u00e9 rovin\u011b a sn\u00edma\u010dem zat\u00ed\u017een\u00ed o hmotnosti 500 g, kter\u00fd zaznamen\u00e1v\u00e1 s\u00edly odlupov\u00e1n\u00ed p\u0159i konstantn\u00ed rychlosti odd\u011blov\u00e1n\u00ed sev\u0159en\u00ed.<\/p>\n\n\n\n

\"Standardn\u00ed<\/figure>\n\n\n\n

\u00davod<\/h2>\n\n\n\n

Pozad\u00ed f\u00f3lie Stretch Wrap  <\/h3>\n\n\n\n

Stretch f\u00f3lie - obvykle vyroben\u00e1 z line\u00e1rn\u00edho polyethylenu s n\u00edzkou hustotou - se hojn\u011b pou\u017e\u00edv\u00e1 k sjednocen\u00ed a stabilizaci paletov\u00e9ho n\u00e1kladu t\u00edm, \u017ee se p\u0159i tahu pevn\u011b p\u0159izp\u016fsob\u00ed v\u00fdrobk\u016fm. P\u0159irozen\u00e1 elasticita a p\u0159ilnavost f\u00f3lie umo\u017e\u0148uj\u00ed p\u0159ilnut\u00ed v\u00edce vrstev a vytvo\u0159en\u00ed bezpe\u010dn\u00e9ho obalu, kter\u00fd odol\u00e1v\u00e1 posunu p\u0159i manipulaci a p\u0159eprav\u011b.<\/p>\n\n\n\n

V\u00fdznam lepen\u00ed v obalech  <\/h3>\n\n\n\n

Pevnost p\u0159ilnavosti je rozhoduj\u00edc\u00ed pro zachov\u00e1n\u00ed celistvosti n\u00e1kladu, proto\u017ee nedostate\u010dn\u00e1 p\u0159ilnavost m\u016f\u017ee v\u00e9st ke sklouznut\u00ed vrstvy, zhor\u0161en\u00ed stability a mo\u017en\u00e9mu po\u0161kozen\u00ed v\u00fdrobku b\u011bhem p\u0159epravy. D\u00edky kvantifikaci s\u00edly odlepen\u00ed mohou v\u00fdrobci a koncov\u00ed u\u017eivatel\u00e9 vybrat f\u00f3lie, kter\u00e9 poskytuj\u00ed konzistentn\u00ed v\u00fdkon, optimalizuj\u00ed vyu\u017eit\u00ed materi\u00e1lu a sni\u017euj\u00ed mno\u017estv\u00ed odpadu.<\/p>\n\n\n\n

Rozsah platnosti a v\u00fdznam normy ASTM D5458<\/h2>\n\n\n\n

Rozsah platnosti normy  <\/h3>\n\n\n\n

Norma ASTM D5458 plat\u00ed pro stretch f\u00f3lie v nata\u017een\u00e9m i nenata\u017een\u00e9m stavu a uv\u00e1d\u00ed postupy pro stanoven\u00ed s\u00edly pot\u0159ebn\u00e9 k odlepen\u00ed p\u00e1su f\u00f3lie o tlou\u0161\u0165ce 1 palec (25 mm) od rovn\u00e9ho povrchu f\u00f3lie. V\u00fdsledky jsou uv\u00e1d\u011bny v jednotk\u00e1ch palc\u016f na libru (pro informaci jsou uvedeny p\u0159evody na soustavu SI) a slou\u017e\u00ed jako m\u011b\u0159\u00edtko pro porovn\u00e1n\u00ed v\u00fdrobk\u016f.<\/p>\n\n\n\n

V\u00fdznam a pou\u017eit\u00ed  <\/h3>\n\n\n\n

Tento <\/a>Stretch Film Peeling Cling<\/a> zku\u0161ebn\u00ed metoda<\/strong> umo\u017e\u0148uje laborato\u0159\u00edm kontroly kvality ov\u011b\u0159it, zda f\u00f3lie spl\u0148uj\u00ed specifikace pro lepen\u00ed, a podporuje tak spolehliv\u00e9 zaji\u0161t\u011bn\u00ed n\u00e1kladu ve skladech a distribuci. Rovn\u011b\u017e usm\u011br\u0148uje v\u00fdzkumn\u00e9 a v\u00fdvojov\u00e9 \u00fasil\u00ed p\u0159i formulaci f\u00f3li\u00ed t\u00edm, \u017ee propojuje vlastnosti materi\u00e1lu - jako je typ prysky\u0159ice, p\u0159\u00edsady a tlou\u0161\u0165ka - s m\u011b\u0159iteln\u00fdmi vlastnostmi p\u0159ilnavosti.<\/p>\n\n\n\n

Zku\u0161ebn\u00ed postup<\/h2>\n\n\n\n

P\u0159\u00edprava vzorku  <\/h3>\n\n\n\n

Vzorky filmu zahrnuj\u00ed velk\u00fd \u201cz\u00e1kladn\u00ed\u201d vzorek p\u0159ipevn\u011bn\u00fd k naklon\u011bn\u00e9mu p\u0159\u00edpravku a men\u0161\u00ed vzorek o velikosti 1 palce. \u00d7 5 palc\u016f p\u0159ipevn\u011bn\u00e9 na klipech. Kondicionov\u00e1n\u00ed f\u00f3li\u00ed (nap\u0159. teplota a vlhkost) se \u0159\u00edd\u00ed prax\u00ed D4332, aby se minimalizovaly vlivy prost\u0159ed\u00ed na m\u011b\u0159en\u00ed p\u0159ilnavosti.<\/p>\n\n\n\n

Vybaven\u00ed a nastaven\u00ed  <\/h3>\n\n\n\n

Je zapot\u0159eb\u00ed univerz\u00e1ln\u00ed zku\u0161ebn\u00ed stroj s konstantn\u00ed rychlost\u00ed odd\u011blov\u00e1n\u00ed \u00fachopu a sn\u00edma\u010dem zat\u00ed\u017een\u00ed 500 g a:  <\/p>\n\n\n\n

- Lehk\u00e9 rukojeti s gumov\u00fdm povrchem (1 \u00d7 1,5 palce) .  <\/p>\n\n\n\n

- Upev\u0148ovac\u00ed a up\u00ednac\u00ed prvky (viz obr\u00e1zky ASTM).  <\/p>\n\n\n\n

- P\u0159esn\u00e1 \u0159eza\u010dka vzork\u016f a separa\u010dn\u00ed pap\u00edr pro \u010dist\u00e9 okraje.<\/p>\n\n\n\n

Postup testov\u00e1n\u00ed  <\/h3>\n\n\n\n

Z\u00e1kladn\u00ed f\u00f3lii upn\u011bte na \u0161ikmou plochu (vn\u011bj\u0161\u00ed stranou nahoru) a voln\u00fd konec zajist\u011bte ocelovou ty\u010d\u00ed, abyste dos\u00e1hli po\u017eadovan\u00e9ho p\u0159edp\u011bt\u00ed. Um\u00edst\u011bte p\u00e1s f\u00f3lie na naklon\u011bnou plochu, rovnom\u011brn\u00fdm tlakem vytvo\u0159te kontakt a pot\u00e9 p\u0159ipevn\u011bte voln\u00fd konec p\u00e1su ke spon\u011b zku\u0161ebn\u00edho stroje. Zahajte odd\u011blov\u00e1n\u00ed sev\u0159en\u00ed standardn\u00ed rychlost\u00ed (nap\u0159. 12 palc\u016f\/min) a zaznamenejte \u0161pi\u010dkovou s\u00edlu, kdy\u017e se p\u00e1s odlep\u00ed od z\u00e1kladny.<\/p>\n\n\n\n

V\u00fdpo\u010det p\u0159ilnavosti  <\/h3>\n\n\n\n

P\u0159ilnavost je definov\u00e1na jako maxim\u00e1ln\u00ed s\u00edla odlupov\u00e1n\u00ed na jednotku \u0161\u00ed\u0159ky (nap\u0159. N\/25 mm nebo lb\/in.). Pro v\u00fdpo\u010det pr\u016fm\u011bru a posouzen\u00ed variability se testuje v\u00edce opakov\u00e1n\u00ed (minim\u00e1ln\u011b p\u011bt).<\/p>\n\n\n\n

P\u0159esnost a reprodukovatelnost  <\/h3>\n\n\n\n

Mezilaboratorn\u00ed studie (nap\u0159. Practice E691) podporuj\u00ed prohl\u00e1\u0161en\u00ed o p\u0159esnosti normy a uv\u00e1d\u011bj\u00ed typick\u00e9 meze opakovatelnosti a reprodukovatelnosti pro m\u011b\u0159en\u00ed ulp\u00edv\u00e1n\u00ed. U\u017eivatel\u00e9 by m\u011bli p\u0159i interpretaci nejistoty m\u011b\u0159en\u00ed vych\u00e1zet z tabulek p\u0159esnosti v ofici\u00e1ln\u00edm dokumentu ASTM.<\/p>\n\n\n\n

Praktick\u00e9 \u00favahy a tipy  <\/h3>\n\n\n\n

Ujist\u011bte se, \u017ee na povrchu f\u00f3lie nen\u00ed prach, oleje nebo statick\u00fd n\u00e1boj, kter\u00fd by mohl zkreslit v\u00fdsledky ulp\u00edv\u00e1n\u00ed. Pravideln\u011b kalibrujte zku\u0161ebn\u00ed stroj a ov\u011b\u0159ujte p\u0159esnost sn\u00edma\u010d\u016f zat\u00ed\u017een\u00ed, aby byla zachov\u00e1na integrita dat. P\u0159i porovn\u00e1v\u00e1n\u00ed f\u00f3li\u00ed udr\u017eujte st\u00e1l\u00e9 podm\u00ednky prost\u0159ed\u00ed a orientaci vzork\u016f.<\/p>\n\n\n\n

Z\u00e1v\u011br  <\/h2>\n\n\n\n

Norma ASTM D5458 poskytuje spolehlivou a reprodukovatelnou metodu pro hodnocen\u00ed p\u0159ilnavosti stretch f\u00f3li\u00ed, kter\u00e1 usnad\u0148uje kontrolu kvality a v\u00fdvoj v\u00fdrobk\u016f v cel\u00e9m obalov\u00e9m pr\u016fmyslu. Dodr\u017eov\u00e1n\u00edm standardizovan\u00e9ho postupu a zohled\u0148ov\u00e1n\u00edm p\u0159esn\u00fdch metrik mohou v\u00fdrobci a koncov\u00ed u\u017eivatel\u00e9 spolehliv\u011b posoudit p\u0159ilnavost f\u00f3lie, optimalizovat materi\u00e1ly a zajistit bezpe\u010dnou stabilitu p\u0159i zat\u00ed\u017een\u00ed.<\/p>\n\n\n\n

Chcete-li z\u00edskat dal\u0161\u00ed technick\u00e9 pokyny nebo kalibrovan\u00e9 za\u0159\u00edzen\u00ed pro testov\u00e1n\u00ed p\u0159ilnavosti, kontaktujte n\u00e1s jako sv\u00e9ho d\u016fv\u011bryhodn\u00e9ho dodavatele, Cell Instruments<\/a> poskytujeme komplexn\u00ed testovac\u00ed \u0159e\u0161en\u00ed p\u0159izp\u016fsoben\u00e1 va\u0161im po\u017eadavk\u016fm na v\u00fdkonnost stretch f\u00f3li\u00ed.<\/p>\n\n\n\n

Pokud m\u00e1te z\u00e1jem o dal\u0161\u00ed informace o tomto produktu, nev\u00e1hejte n\u00e1s kontaktovat. Doporu\u010dujeme v\u00e1m dal\u0161\u00ed obl\u00edben\u00e9 produkty: Tester odlupov\u00e1n\u00ed<\/a>, Kombinovan\u00e1 zkou\u0161e\u010dka s\u00edly otev\u0159en\u00ed v\u00ed\u010dka z hlin\u00edku a plastu<\/a>, Tester l\u00e9ka\u0159sk\u00fdch st\u0159\u00edka\u010dek<\/a>, tester odlupov\u00e1n\u00ed n\u00e1dob<\/a>, \u010c\u00edna tepeln\u00e9 t\u011bsn\u011bn\u00ed tester tov\u00e1rna<\/a>, \u010d\u00ednsk\u00fd tester tepeln\u00e9ho t\u011bsn\u011bn\u00ed<\/a>, s\u00edly p\u016fsob\u00edc\u00ed na p\u00edst st\u0159\u00edka\u010dky<\/a>, \u0158e\u0161en\u00ed Flex Durability Tester<\/a>, Dodavatel testeru Cof<\/a>, \u0158e\u0161en\u00ed pro testov\u00e1n\u00ed zdravotnick\u00fdch obal\u016f<\/a>, Tester t\u011bsnosti a t\u011bsn\u011bn\u00ed \u010c\u00edna<\/a>, \u0158e\u0161en\u00ed pro testov\u00e1n\u00ed t\u011bsnosti a t\u011bsnosti<\/a>, V\u00fdrobce pap\u00edrov\u00fdch desek Tester<\/a>, V\u00fdrobce testeru na odlepov\u00e1n\u00ed stre\u010dov\u00fdch f\u00f3li\u00ed<\/a>, Tov\u00e1rna na testov\u00e1n\u00ed p\u0159ilnavosti stre\u010dov\u00e9ho filmu<\/a>, Tester na odlepov\u00e1n\u00ed stre\u010dov\u00fdch f\u00f3li\u00ed<\/a>, Tov\u00e1rna na gradientn\u00ed tepeln\u00e9 t\u011bsn\u011bn\u00ed<\/a>, Gradientn\u00ed tepeln\u00fd t\u011bsnic\u00ed tester velkoobchodn\u00edk<\/a>, Gradientn\u00ed tepeln\u00fd t\u011bsnic\u00ed tester \u010c\u00edna<\/a>, Tester plastov\u00fdch f\u00f3li\u00ed|\u3001Tov\u00e1rna na testov\u00e1n\u00ed plast\u016f<\/a>, Tester tlou\u0161\u0165ky pap\u00edru a lepenky velkoobchodn\u00edk<\/a>, V\u00fdrobce testeru odlupov\u00e1n\u00ed<\/a>, Tester odlupov\u00e1n\u00ed slupek \u010c\u00edna<\/a>, Slu\u017eby testeru odlupov\u00e1n\u00ed<\/a>, Roztok pro testov\u00e1n\u00ed odlupov\u00e1n\u00ed<\/a><\/p>","protected":false},"excerpt":{"rendered":"

ASTM D5458 specifies a standardized peel\u2010cling test to quantify the adhesive interaction between two layers of stretch wrap film under both stretched and unstretched conditions. The method outlines detailed procedures for sample preparation, apparatus setup, test execution, and data analysis to ensure consistency and comparability of results across laboratories and suppliers. Key equipment includes a universal testing […]<\/p>","protected":false},"author":2,"featured_media":0,"comment_status":"open","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"_acf_changed":false,"footnotes":""},"categories":[1],"tags":[],"class_list":["post-921","post","type-post","status-publish","format-standard","hentry","category-uncategorized"],"acf":[],"_links":{"self":[{"href":"https:\/\/www.materialstests.com\/cs\/wp-json\/wp\/v2\/posts\/921","targetHints":{"allow":["GET"]}}],"collection":[{"href":"https:\/\/www.materialstests.com\/cs\/wp-json\/wp\/v2\/posts"}],"about":[{"href":"https:\/\/www.materialstests.com\/cs\/wp-json\/wp\/v2\/types\/post"}],"author":[{"embeddable":true,"href":"https:\/\/www.materialstests.com\/cs\/wp-json\/wp\/v2\/users\/2"}],"replies":[{"embeddable":true,"href":"https:\/\/www.materialstests.com\/cs\/wp-json\/wp\/v2\/comments?post=921"}],"version-history":[{"count":0,"href":"https:\/\/www.materialstests.com\/cs\/wp-json\/wp\/v2\/posts\/921\/revisions"}],"wp:attachment":[{"href":"https:\/\/www.materialstests.com\/cs\/wp-json\/wp\/v2\/media?parent=921"}],"wp:term":[{"taxonomy":"category","embeddable":true,"href":"https:\/\/www.materialstests.com\/cs\/wp-json\/wp\/v2\/categories?post=921"},{"taxonomy":"post_tag","embeddable":true,"href":"https:\/\/www.materialstests.com\/cs\/wp-json\/wp\/v2\/tags?post=921"}],"curies":[{"name":"wp","href":"https:\/\/api.w.org\/{rel}","templated":true}]}}