{"id":1041,"date":"2024-02-04T14:07:04","date_gmt":"2024-02-04T06:07:04","guid":{"rendered":"https:\/\/joyforce-tech.com\/?p=1041"},"modified":"2024-08-25T13:42:31","modified_gmt":"2024-08-25T05:42:31","slug":"how-to-identify-the-quality-of-pva-water-soluble-film-products","status":"publish","type":"post","link":"https:\/\/joyforce-tech.com\/fr\/how-to-identify-the-quality-of-pva-water-soluble-film-products.html","title":{"rendered":"Comment identifier la qualit\u00e9 des films hydrosolubles en PVA ?"},"content":{"rendered":"<p style=\"font-weight: 400;\">1) Solubilit\u00e9 dans l'eau :<\/p>\n<p style=\"font-weight: 400;\">Les films solubles dans l'eau froide doivent pouvoir \u00eatre dissous dans de l'eau \u00e0 une temp\u00e9rature sup\u00e9rieure \u00e0 4 \u2103. Plus la dissolution est rapide, mieux c'est. Moins il reste de r\u00e9sidus apr\u00e8s la dissolution, mieux c'est. Plus l'eau dissoute est claire, mieux c'est.<\/p>\n<p style=\"font-weight: 400;\">2) Qualit\u00e9 de l'apparence :<\/p>\n<p style=\"font-weight: 400;\">Plus l'enroulement est lisse, mieux c'est. La surface ext\u00e9rieure de la bobine ne doit pas pr\u00e9senter d'irr\u00e9gularit\u00e9s ou de plis \u00e9vidents. Plus les deux extr\u00e9mit\u00e9s du film sont planes, mieux c'est, \u00e0 \u00b12 mm pr\u00e8s. La surface du film ne doit pas pr\u00e9senter de d\u00e9fauts tels que des bulles, des perforations, des inclusions de scories et des taches noires.<\/p>\n<p style=\"font-weight: 400;\">3) R\u00e9sistance m\u00e9canique :<\/p>\n<p style=\"font-weight: 400;\">La r\u00e9sistance \u00e0 la traction doit \u00eatre sup\u00e9rieure \u00e0 25Mpa. Si elle est insuffisante, il est facile de l'arracher. L'allongement \u00e0 la rupture doit \u00eatre sup\u00e9rieur \u00e0 180%. Moins n'est pas doux. La r\u00e9sistance \u00e0 la d\u00e9chirure \u00e0 angle droit doit \u00eatre d'environ 80KN\/m. Dans le cas contraire, le produit est fragile lorsqu'il est cass\u00e9.<\/p>\n<p style=\"font-weight: 400;\">4) Dur\u00e9e de stockage : Le film hydrosoluble de qualit\u00e9 stable peut \u00eatre stock\u00e9 pendant plus de 1 \u00e0 2 ans (sans humidit\u00e9).<\/p>\n<p><img fetchpriority=\"high\" decoding=\"async\" class=\"aligncenter size-full wp-image-1042\" src=\"https:\/\/joyforce-tech.com\/wp-content\/uploads\/2024\/02\/1-13.png\" alt=\"\" width=\"655\" height=\"435\" srcset=\"https:\/\/joyforce-tech.com\/wp-content\/uploads\/2024\/02\/1-13.png 655w, https:\/\/joyforce-tech.com\/wp-content\/uploads\/2024\/02\/1-13-300x199.png 300w, https:\/\/joyforce-tech.com\/wp-content\/uploads\/2024\/02\/1-13-18x12.png 18w, https:\/\/joyforce-tech.com\/wp-content\/uploads\/2024\/02\/1-13-600x398.png 600w\" sizes=\"(max-width: 655px) 100vw, 655px\" \/><\/p>","protected":false},"excerpt":{"rendered":"<p>1) Water solubility: Cold water soluble film requires that water can be dissolved in water above 4 \u2103. The faster it dissolves the better. The less residue remaining after dissolution, the better. The clearer the dissolved water, the better. 2) Appearance quality: The smoother the winding, the better. There should be no obvious unevenness and [&hellip;]<\/p>","protected":false},"author":2,"featured_media":1042,"comment_status":"closed","ping_status":"open","sticky":false,"template":"","format":"standard","meta":{"footnotes":""},"categories":[43],"tags":[],"class_list":["post-1041","post","type-post","status-publish","format-standard","has-post-thumbnail","hentry","category-bolg"],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v21.9.1 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<title>How to identify the quality of PVA water-soluble film products - Joyforce PVA Film and Bag<\/title>\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/joyforce-tech.com\/fr\/how-to-identify-the-quality-of-pva-water-soluble-film-products.html\/\" \/>\n<meta property=\"og:locale\" content=\"fr_FR\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"How to identify the quality of PVA water-soluble film products - Joyforce PVA Film and Bag\" \/>\n<meta property=\"og:description\" content=\"1) Water solubility: Cold water soluble film requires that water can be dissolved in water above 4 \u2103. The faster it dissolves the better. The less residue remaining after dissolution, the better. The clearer the dissolved water, the better. 2) Appearance quality: The smoother the winding, the better. 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