Chikopa chopanga chomwe chimagwiritsidwa ntchito mkati mwagalimoto chimaphatikizapo PVC (ployvinyl chloride) chikopa chochita kupanga, PU (poly urethane) chikopa chopanga, suede ngati chikopa chopanga ndi mitundu ina.Ndi njira ina yachikopa ndipo imagwiritsidwa ntchito kwambiri m'zigawo zamkati monga mipando, mapepala a zitseko ndi zophimba za mpira.
1. PVC akamaumba
Zopangira zazikulu za PVC zopangira zikopa ndi PVC, ndipo pansi zimamangiriridwa ndi nsalu zoluka kapena nsalu.PVC ali ndi ubwino kupanga yosavuta, yunifolomu mankhwala khalidwe ndi otsika mtengo, koma permeability mpweya ndi permeability chinyezi si zabwino ngati chikopa.Njira yoyambira kupanga ndi iyi:
① Kusakaniza: PVC, retardant flame, stabilizer ndi mtundu zimasakanizidwa ndi vacuum pump.
② Kupaka: sankhani pepala loyenera lomasulidwa molingana ndi mawonekedwe osankhidwa ndi template yopangira, kapena panganinso chodzigudubuza cha pepala molingana ndi kapangidwe kake;Kupaka kusakaniza mu sitepe yapitayi pa pepala lomasulidwa, kuyanika ndi kuyanika nthawi zambiri kuti mufike makulidwe oyenera ndi ofanana;Pomaliza, nsalu yoyambira yokonzedwayo imalumikizidwa ndi PVC yokutira, ndipo itatha kuyanika, pepala lotulutsa ndi nsalu zimakulungidwa motsatana.
Mzere wopangira zikopa za PVC ukuwonetsedwa pachithunzichi.
2.Pu kupanga
Zopangira zazikulu za Pu chikopa chochita kupanga ndi polyurethane, yomwe ili ndi mawonekedwe odzaza, kukhazikika bwino, kutulutsa mpweya wina komanso kutulutsa chinyezi, ndipo ili pafupi ndi mawonekedwe a chikopa chachilengedwe.Chikopa chapamwamba cha Pu chopanga chimakhala chokwera mtengo kuposa chikopa chenicheni.Kapangidwe ka zikopa wamba za Pu ndi zofanana ndi za PVC.
Mtundu wina wa zikopa zopangira zomwe zimagwiritsidwa ntchito kwambiri pakadali pano ndi superfine fiber PU, yomwe imatchedwa superfine fiber PU mwachidule.Mosiyana ndi nsalu zoluka za Pu wamba, maziko a super fiber PU ndi nsalu yopanda nsalu yopangidwa ndi ulusi wa pachilumba cha nyanja.Ulusi wa Island ndi mtundu wa ulusi wophatikizika.Mu gawo lake la ulusi, zolimbitsa thupi zimabalalika mu gawo lapansi ngati zisumbu, motero zimatchedwa.Nsalu ya super fiber base italukidwa kukhala mawonekedwe, imapangidwa kukhala wosanjikiza wapamwamba kwambiri wa ulusi pomiza ndi njira zina, zomwe zimakhala ndi mawonekedwe apamwamba kuposa PU wamba.Njira yopangira nsalu yoyambira ikunena za ulalo:
Mzere wopangira zikopa wa PVC
①Kuluka: sankhani ulusi wophatikizika wa chilumba choyenera, upangireni ndi singano, spunlace ndi njira zina zosalukidwa, ndikuchiumba ndi njira zakuthupi.
②Impregnation: Nsalu yolukidwa imayikidwa mu utomoni, kulowetsedwa, kulimba, kutsukidwa, ndipo ndondomeko yomwe ili pamwambayi imabwerezedwa, kenako ndikukonzedwa ndikukulungidwa kuti apange nsalu yapamwamba kwambiri.
Super fiber PU imapezeka pambuyo poti Pu atakutidwa pamwamba pa nsalu yapamwamba kwambiri ya fiber.Kupaka pamwamba kumafanana ndi Pu ndi PVC wamba.
Imelo: jeff@cnpolytech.com
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Nthawi yotumiza: Sep-09-2022