4 Ntau txoj kev ntawm Artificial Leather Synthetic Leather
Aug 17, 2022
1. Direct txheej txheej, cov roj hmab yog ncaj qha coated rau ntawm pretreated puag daim ntaub nrog ib tug scraper, thiab ces mus rau hauv lub plasticizing lub thawv rau gelation thiab plasticization, thiab ces los ntawm embossing, txias thiab lwm yam txheej txheem, cov khoom tiav lawm. Txoj kev no tuaj yeem tsim tau txhua yam ntawm daim ntaub-raws li cov tawv nqaij zoo tib yam, zaj duab xis tawv tawv thiab ua npuas ncauj tawv tawv.
2. Hloov txheej txheej, tseem hu ua indirect txheej txheej. Cov tshuaj nplaum yog coated rau ntawm cov cab kuj (tso daim ntawv siv los yog stainless hlau siv) nrog ib tug rov qab cov menyuam los yog scraper. Tom qab gelation, daim ntaub hauv paus yog sib xyaw rau ntawm cov khoom siv gelated tsis muaj qhov nro, thiab tom qab ntawd plasticized, txias thiab tev tawm ntawm cov cab kuj, thiab tom qab ua tiav kom tau cov khoom tiav. Txoj kev no yog tsim rau zus tau tej cov knitted fabrics los yog non-woven ua npuas ncauj hluavtaws tawv thiab zoo tib yam tawv tawv.
3. Calendering thiab laminating txoj kev: raws li cov qauv yuav tsum tau, cov resin, plasticizer thiab lwm yam compounding agents raug ntsuas, muab tso rau hauv ib tug kneader rau uniform mixing, thiab ces xa mus rau ib tug peb-yob los yog plaub-yob calender tom qab tau plasticized los ntawm ib tug Internal tov khoom, ib tug qhib zeb los yog ib tug extruder, thiab ces bonded nrog ib tug pre-rhuab puag ntaub, thiab ces embossed thiab txias kom tau cov khoom tiav. Txoj kev no tuaj yeem tsim ntau yam tawv tawv nrog cov ntaub sib txawv. Txhawm rau txhim kho cov txiaj ntsig kev sib raug zoo ntawm daim ntaub hauv paus thiab zaj duab xis, ib txheej ntawm cov nplaum feem ntau siv rau hauv daim ntaub.
4. Extrusion thiab bonding txoj kev, cov resin, plasticizer thiab lwm yam compounding agents yog sib npaug zos rau hauv lub kneader. Tom qab ua plasticized, lub extruder yog extruded rau hauv ib zaj duab xis txheej ntawm ib tug tej thickness thiab dav, thiab ces lub peb-yob qhov chaw tshuab yog txuas mus rau lub preheated puag ntaub, thiab ces cov khoom tiav yog tau los ntawm preheating, zaj duab xis sticking, embossing, thiab cua txias. Txoj kev no yog siv los tsim cov khoom tuab, xws li hauv pem teb tawv, conveyor siv, thiab lwm yam.