Kodi nsalu zosalukidwa zotentha ndi mpweya wotentha wopanda nsalu ndi zofanana?

Mpweya wotentha wopanda nsalu

Mpweya wotentha wopanda nsalu ndi wa mtundu wa mpweya wotentha womangika (wotentha-wotentha, mpweya wotentha) wosalukidwa. Mpweya wotentha wosalukidwa nsalu umapangidwa pogwiritsa ntchito mpweya wotentha kuchokera ku chipangizo chowumitsira kuti ulowe mu ukonde wa ulusi pambuyo poti ulusiwo utapekedwa, zomwe zimalola kuti zitenthedwe ndikugwirizanitsa pamodzi.

Njira yolumikizira mpweya yotentha

Kulumikizana kwa mpweya wotentha kumatanthawuza njira yopangira yogwiritsira ntchito mpweya wotentha kuti ulowe muzitsulo za fiber pazida zowumitsa ndikuzisungunula ndi kutentha kuti zigwirizane. Njira zotenthetsera zomwe zimagwiritsidwa ntchito ndizosiyana, ndipo machitidwe ndi kalembedwe kazinthu zopangidwa zimasiyananso. Nthawi zambiri, zinthu zopangidwa ndi mpweya wotentha zimakhala ndi mawonekedwe monga fluffiness, softness, elasticity yabwino, ndi kusunga kutentha kwakukulu, koma mphamvu zawo ndizochepa ndipo zimakhala zosavuta kusinthika.

Popanga kulumikiza mpweya wotentha, gawo lina la ulusi womangira wochepa wosungunuka kapena ulusi wa zigawo ziwiri nthawi zambiri umasakanizidwa mu ukonde wa ulusi, kapena chipangizo choyatsira ufa chimagwiritsidwa ntchito popaka ufa wochuluka womangira pa intaneti usanalowe mchipinda chowumitsira. Kusungunuka kwa ufa kumakhala kochepa kusiyana ndi ulusi, ndipo kumasungunuka mwamsanga pamene kutenthedwa, kumayambitsa kumamatira pakati pa ulusi.

Kutentha kwa kutentha kwa mpweya wotentha nthawi zambiri kumakhala kotsika kuposa kusungunuka kwa ulusi waukulu. Choncho, posankha ulusi, kufananiza kwa kutentha kwapakati pakati pa ulusi waukulu ndi chingwe chogwirizanitsa kuyenera kuganiziridwa, ndipo kusiyana pakati pa malo osungunuka a ulusi womangira ndi malo osungunuka a ulusi waukulu kuyenera kuwonjezeredwa kuti kuchepetsa kutentha kwa shrinkage kwa ulusi waukulu ndi kusunga zinthu zake zoyambirira.

Mphamvu ya ulusi womangira ndi yotsika kuposa ya ulusi wabwinobwino, kotero kuchuluka kwake sikuyenera kukhala kwakukulu, komwe kumayendetsedwa pakati pa 15% ndi 50%. Chifukwa cha kuchepa kwake kwamafuta ochepa, ulusi wa zigawo ziwiri ndi woyenera kwambiri kugwiritsidwa ntchito pawokha kapena ngati ulusi womangira popanga nsalu zomangika ndi mpweya wotentha, zomwe zimapanga zomangira zogwira mtima. Zopangidwa ndi njirayi zimakhala ndi mphamvu zambiri komanso zofewa zamanja.

Kugwiritsa ntchito mpweya wotentha wopanda nsalu

Ulusi wa ulusi wopangidwa ndi ulusi wopangira thermoplastic ukhoza kulimbikitsidwa ndi kugwirizana kwa kutentha, monga poliyesitala, nayiloni, polypropylene, ndi zina zomwe zimagwiritsidwa ntchito popanga nsalu zopanda nsalu. Chifukwa chosowa thermoplasticity ya ulusi monga thonje, ubweya, hemp, ndi viscose, ulusi wopangidwa ndi ulusi wokhawo sungathe kulimbikitsidwa ndi kugwirizana kwamafuta. Komabe, ulusi wocheperako monga thonje ndi ubweya ukhoza kuwonjezeredwa ku ulusi wa thermoplastic kuti upangitse zinthu zina za nsalu zosalukidwa, koma nthawi zambiri zisapitirire 50%. Mwachitsanzo, nsalu yotentha yopanda nsalu yopanda nsalu yopangidwa ndi thonje / poliyesitala mu 30/70 kusakaniza chiŵerengero cha 30/70 ikhoza kupititsa patsogolo kuyamwa kwa chinyezi, kumva kwa manja, ndi kufewa, zomwe zimapangitsa kuti zikhale zoyenera kwambiri kuti zigwiritsidwe ntchito mu mankhwala ndi zaumoyo. Pamene ulusi wa thonje ukuwonjezeka, mphamvu za nsalu zopanda nsalu zidzachepa. Zoonadi, pa ulusi wa ulusi wopangidwa ndi ulusi wosakhala wa thermoplastic, ndizothekanso kulingalira kugwiritsa ntchito njira zoyatsira ufa ndi njira zomangira zotentha zolimbitsa.

Hot adagulung'undisa sanali nsalu nsalu

Njira yopukutira yotentha komanso mpweya wotentha ndi njira zofunika kwambiri zopangira. Kugudubuza kotentha kumaphatikizapo kutenthetsa zinthu zopanda nsalu zopangira nsalu pa kutentha kwakukulu ndiyeno kuzikankhira mu makulidwe enaake a nsalu yopanda nsalu kupyolera mu njira yogubuduza. Nsalu zotentha zomangika zopanda nsalu zitha kupezedwa kudzera munjira zosiyanasiyana zotenthetsera. Njira yolumikizirana ndi njira, mtundu wa ulusi ndi njira yophatikizira, ndi kapangidwe ka intaneti pamapeto pake zidzakhudza magwiridwe antchito ndi mawonekedwe a nsalu zosalukidwa.

Hot anagubuduza zomatira njira

Pa ulusi wa ulusi wokhala ndi ulusi wochepa wosungunuka kapena ulusi wa zigawo ziwiri, zomangira zotentha kapena zomangira mpweya wotentha zitha kugwiritsidwa ntchito. Pa ulusi wamba wa thermoplastic ndi ulusi wa ulusi wosakanizidwa ndi ulusi wopanda thermoplastic, zomangira zotentha zitha kugwiritsidwa ntchito.

Njira yolumikizirana yotentha nthawi zambiri imakhala yoyenera pazinthu zoonda zokhala ndi ukonde wolemera kuchokera 20-200g/m, ndipo ukonde woyenera kwambiri kulemera kwake ndi pakati pa 20-80g/m. Ngati ukonde ndi wokhuthala kwambiri, kulumikizana kwapakati kumakhala koyipa, ndipo delamination imatha kuchitika.

Kumangirira kwa mpweya wotentha ndikoyenera pazinthu zokhala ndi kuchuluka kwa 16 ~ 2500g/m. M'zaka zaposachedwa, kupangidwa kwa nsalu zopyapyala zomangika ndi mpweya wotentha kwakhala kofulumira, ndipo kuchuluka kwake kumakhala pakati pa 16-100g/m.

Kuphatikiza apo, kulumikizana kwamafuta kumagwiritsidwanso ntchito kwambiri popanga nsalu zosapanga zophatikizika (mongaSungunulani nsalu za laminated nonwoven), kapena ngati njira yowonjezera ku njira zina zolimbikitsira. Mwachitsanzo, kusakaniza ulusi wochepa wosungunuka mu ukonde wa ulusi, kulimbikitsa ndi kukhomerera kwa singano, ndiyeno kugwirizana ndi mpweya wotentha kungathe kupititsa patsogolo mphamvu ndi kukhazikika kwazitsulo zokhomeredwa ndi singano.

Kugwiritsa ntchito nsalu yowotcha yopanda nsalu

Zopangira zomangira mpweya zotentha zimakhala ndi mawonekedwe a fluffiness yayikulu, kukhazikika bwino, kumva kwa manja kofewa, kusungirako kutentha kwamphamvu, kupuma bwino komanso kupumira, koma mphamvu zawo ndizochepa ndipo zimatha kupindika. Ndi chitukuko cha msika, zinthu zomangira mpweya wotentha zimagwiritsidwa ntchito kwambiri popanga zinthu zotayidwa ndi kalembedwe kake kapadera, monga matewera a ana, mapepala odziletsa achikulire, nsalu zaukhondo wa amayi, zopukutira, matawulo osambira, nsalu za tebulo zotayidwa, ndi zina zotero; Zinthu zokhuthala zimagwiritsidwa ntchito popangira zovala zoletsa kuzizira, zofunda, matumba ogona a ana, matiresi, makashini a sofa, ndi zina zambiri. Zomatira zomatira zotentha kwambiri zimatha kugwiritsidwa ntchito popanga zida zosefera, zotchingira mawu, zida zoyamwitsa, ndi zina zambiri.

Dongguan Liansheng Non Woven Technology Co., Ltd.idakhazikitsidwa mu Meyi 2020. Ndi bizinesi yayikulu yopanda nsalu yopanga nsalu kuphatikiza kafukufuku ndi chitukuko, kupanga, ndi malonda. Itha kupanga mitundu yosiyanasiyana ya nsalu za PP spunbond zosalukidwa ndi m'lifupi mwake osakwana 3.2 metres kuchokera ku 9 magalamu mpaka 300 magalamu.