{"id":14020,"date":"2020-03-30T20:24:27","date_gmt":"2020-03-30T18:24:27","guid":{"rendered":"http:\/\/www.ntf.uni-lj.si\/toi\/?post_type=news&#038;p=14020"},"modified":"2020-04-02T19:40:48","modified_gmt":"2020-04-02T17:40:48","slug":"postopek-izdelave-zascitne-medicinske-maske","status":"publish","type":"news","link":"https:\/\/www.ntf.uni-lj.si\/toi\/news\/postopek-izdelave-zascitne-medicinske-maske\/","title":{"rendered":"Postopek izdelave za\u0161\u010ditne medicinske maske"},"content":{"rendered":"<p>Za\u0161\u010ditne medicinske maske so obi\u010dajno izdelane iz treh slojev, pri \u010demer sta zunanji in notranji sloj izdelana iz t.i. \u00bbspunbonding\u00ab netkane tekstilije (vlaknovine), filtrni sloj, ki se nahaja med zunanjim in notranjim slojem, pa je izdelan iz ti. \u00bbmelt-blowing\u00ab vlaknovine.<br \/>\nZunanji in notranji sloj iz \u00bbspunbonding\u00ab vlaknovine imata dobre mehanske in fizikalne lastnosti in sta vodoodbojna, vendar omogo\u010data dobro prepustnost vodne pare. Filtrni sloj, ki je izdelan iz ti. \u00bbmelt-blowing\u00ab vlaknovine pa ima dobro vpojnost, obenem pa deluje kot bariera oz. filter, saj onemogo\u010da prehod nanodelcev kot so bakterije in virusi (premer delcev od 20 do 500 nm) v ustno ali nosno votlino osebe, ki nosi za\u0161\u010ditno medicinsko masko. Sloje, ki sestavljajo medicinsko za\u0161\u010ditno masko spojijo skupaj strojno z ultrazvo\u010dno tehniko spajanja.<br \/>\nVsi sloji so obi\u010dajno izdelani iz polipropilenskih vlaken (PP vlaken), ki ne vpijajo vode, imajo nizko gostoto in so zaradi tega maske tudi lahke.<\/p>\n<p><em>Trislojna medicinska za\u0161\u010ditna maska in stroj z ultrazvo\u010dno tehniko spajanja:<\/em><br \/>\n<img loading=\"lazy\" width=\"543\" height=\"240\" class=\"aligncenter size-full wp-image-14023\" src=\"https:\/\/www.ntf.uni-lj.si\/toi\/wp-content\/uploads\/sites\/7\/2020\/03\/Za\u0161\u010ditna-medicinska-maska_trislojna.jpg\" alt=\"\" srcset=\"https:\/\/www.ntf.uni-lj.si\/toi\/wp-content\/uploads\/sites\/7\/2020\/03\/Za\u0161\u010ditna-medicinska-maska_trislojna.jpg 543w, https:\/\/www.ntf.uni-lj.si\/toi\/wp-content\/uploads\/sites\/7\/2020\/03\/Za\u0161\u010ditna-medicinska-maska_trislojna-300x133.jpg 300w\" sizes=\"(max-width: 543px) 100vw, 543px\" \/><br \/>\n<img loading=\"lazy\" width=\"510\" height=\"407\" class=\"aligncenter size-full wp-image-14024\" src=\"https:\/\/www.ntf.uni-lj.si\/toi\/wp-content\/uploads\/sites\/7\/2020\/03\/Stroj-za-izdelavo-medicinskih-za\u0161\u010ditnih-mask.jpg\" alt=\"\" srcset=\"https:\/\/www.ntf.uni-lj.si\/toi\/wp-content\/uploads\/sites\/7\/2020\/03\/Stroj-za-izdelavo-medicinskih-za\u0161\u010ditnih-mask.jpg 510w, https:\/\/www.ntf.uni-lj.si\/toi\/wp-content\/uploads\/sites\/7\/2020\/03\/Stroj-za-izdelavo-medicinskih-za\u0161\u010ditnih-mask-300x239.jpg 300w\" sizes=\"(max-width: 510px) 100vw, 510px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p><strong>Spunbonding netkane tekstilije za zunanji in notranji sloj za\u0161\u010ditne medicinske maske<\/strong><\/p>\n<p>Po spunbonding postopku se izdelujejo eno ali ve\u010dplastne vlaknovine s polaganjem, medsebojnim prepletanjem in zazankanjem mno\u017eice brezkon\u010dnih filamentov (vlaken) na sitastem transporterju. Spunbonding ekstrudirane vlaknovine imajo izotropne lastnosti in visoko pretr\u017eno napetost. Njihova plo\u0161\u010dinska masa se giblje od 10 do 200 g.m-2, debelina pa od 0,2 do 1,5 mm.<\/p>\n<p><em>Spunbonding netkana tekstilija:<\/em><br \/>\n<img loading=\"lazy\" width=\"306\" height=\"165\" class=\"aligncenter size-full wp-image-14021\" src=\"https:\/\/www.ntf.uni-lj.si\/toi\/wp-content\/uploads\/sites\/7\/2020\/03\/Spunbonding-netkana-tekstilija_zunanji-in-notranji-sloj.jpg\" alt=\"\" srcset=\"https:\/\/www.ntf.uni-lj.si\/toi\/wp-content\/uploads\/sites\/7\/2020\/03\/Spunbonding-netkana-tekstilija_zunanji-in-notranji-sloj.jpg 306w, https:\/\/www.ntf.uni-lj.si\/toi\/wp-content\/uploads\/sites\/7\/2020\/03\/Spunbonding-netkana-tekstilija_zunanji-in-notranji-sloj-300x162.jpg 300w\" sizes=\"(max-width: 306px) 100vw, 306px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p><strong>Melt &#8211; blowing netkane tekstilije za filtrni sloj za\u0161\u010ditne medicinske maske<\/strong><\/p>\n<p>Melt &#8211; blowing ekstrudirane vlaknovine nastajajo z brizganjem taline polimera in s pihanjem finih (mikro) vlaken dol\u017eine od nekaj milimetrov do nekaj metrov na sitasto povr\u0161ino. Melt &#8211; blowing ekstrudirane netkane tekstilije imajo dobre filtracijske in absorpcijske lastnosti, toda dosti slab\u0161e mehanske in fizikalne lastnosti v primerjavi s spunbonding ekstrudiranimi vlaknovinami. Njihova plo\u0161\u010dinska masa se giblje od 10 do 200 g.m-2.<\/p>\n<p><em>Melt-blowing netkana tekstilija:<\/em><br \/>\n<img loading=\"lazy\" width=\"315\" height=\"160\" class=\"aligncenter size-full wp-image-14022\" src=\"https:\/\/www.ntf.uni-lj.si\/toi\/wp-content\/uploads\/sites\/7\/2020\/03\/Melt-blowing-netkana-tekstilija_filtrni-sloj.jpg\" alt=\"\" srcset=\"https:\/\/www.ntf.uni-lj.si\/toi\/wp-content\/uploads\/sites\/7\/2020\/03\/Melt-blowing-netkana-tekstilija_filtrni-sloj.jpg 315w, https:\/\/www.ntf.uni-lj.si\/toi\/wp-content\/uploads\/sites\/7\/2020\/03\/Melt-blowing-netkana-tekstilija_filtrni-sloj-300x152.jpg 300w\" sizes=\"(max-width: 315px) 100vw, 315px\" \/><\/p>\n<p>&nbsp;<\/p>\n<p><em>NTF, OTGO, Katedra za tekstilno in obla\u010dilno in\u017eenirstvo<\/em><\/p>\n","protected":false},"excerpt":{"rendered":"Za\u0161\u010ditne medicinske maske so obi\u010dajno izdelane iz treh slojev, pri \u010demer sta zunanji in notranji sloj izdelana iz t.i. \u00bbspunbonding\u00ab netkane tekstilije (vlaknovine), filtrni sloj, ki se nahaja med zunanjim in notranjim slojem, pa je izdelan iz ti. \u00bbmelt-blowing\u00ab vlaknovine. Zunanji in notranji sloj iz \u00bbspunbonding\u00ab vlaknovine imata dobre mehanske in fizikalne lastnosti in sta &#8230; <a class=\"view-article\" href=\"https:\/\/www.ntf.uni-lj.si\/toi\/news\/postopek-izdelave-zascitne-medicinske-maske\/\">Read more<\/a>","protected":false},"author":26,"featured_media":0,"template":"","categories":[],"acf":[],"yoast_head":"<!-- This site is optimized with the Yoast SEO plugin v17.0 - https:\/\/yoast.com\/wordpress\/plugins\/seo\/ -->\n<meta name=\"robots\" content=\"index, follow, max-snippet:-1, max-image-preview:large, max-video-preview:-1\" \/>\n<link rel=\"canonical\" href=\"https:\/\/www.ntf.uni-lj.si\/toi\/news\/postopek-izdelave-zascitne-medicinske-maske\/\" \/>\n<meta property=\"og:locale\" content=\"en_US\" \/>\n<meta property=\"og:type\" content=\"article\" \/>\n<meta property=\"og:title\" content=\"Postopek izdelave za\u0161\u010ditne medicinske maske - TOI\" \/>\n<meta property=\"og:description\" content=\"Za\u0161\u010ditne medicinske maske so obi\u010dajno izdelane iz treh slojev, pri \u010demer sta zunanji in notranji sloj izdelana iz t.i. \u00bbspunbonding\u00ab netkane tekstilije (vlaknovine), filtrni sloj, ki se nahaja med zunanjim in notranjim slojem, pa je izdelan iz ti. \u00bbmelt-blowing\u00ab vlaknovine. Zunanji in notranji sloj iz \u00bbspunbonding\u00ab vlaknovine imata dobre mehanske in fizikalne lastnosti in sta ... 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