Chikwama chopaka pulasitiki ndi chiyani

Chikwama cholongedza cha pulasitiki ndi mtundu wa chikwama choyikapo chomwe chimagwiritsa ntchito pulasitiki ngati zinthu zopangira kupanga zolemba zosiyanasiyana pamoyo watsiku ndi tsiku. Amagwiritsidwa ntchito kwambiri m'moyo watsiku ndi tsiku komanso kupanga mafakitale, koma kusavuta panthawiyi kumabweretsa kuvulaza kwanthawi yayitali. Matumba omwe amagwiritsidwa ntchito kawirikawiri amapangidwa ndi filimu ya polyethylene, yomwe ilibe poizoni ndipo ingagwiritsidwe ntchito kusunga chakudya. Palinso mtundu wa filimu yopangidwa ndi polyvinyl chloride, yomwe ilinso yopanda poizoni, koma zowonjezera zomwe zimawonjezeredwa malinga ndi cholinga cha filimuyo nthawi zambiri zimakhala zovulaza thupi la munthu ndipo zimakhala ndi kawopsedwe kake. Choncho, filimuyi ndi matumba apulasitiki opangidwa ndi filimuyi si oyenera kunyamula chakudya.

Matumba apulasitiki amatha kugawidwa mu OPP, CPP, PP, PE, PVA, EVA, matumba amagulu, matumba a co-extrusion, etc. malinga ndi zipangizo zawo.

Ubwino wake
CPP
Zopanda poizoni, zophatikizika, zowoneka bwino kuposa PE, komanso zotsika pang'ono pakuuma. Mapangidwe ake ndi ofewa, ndi kuwonekera kwa PP ndi kufewa kwa PE.
PP
Kuuma kumakhala kotsika kwa OPP, kumatha kutambasulidwa (kutambasula kwanjira ziwiri) mutatambasulidwa mu katatu, chisindikizo chapansi kapena chisindikizo chakumbali.
PE
Pali formalin, koma kuwonekera kumakhala koyipa pang'ono
PVA
Zofewa komanso zowonekera bwino. Ndi mtundu watsopano wa zinthu zachilengedwe wochezeka. Zimasungunuka m'madzi. Zopangirazo zimatumizidwa kuchokera ku Japan. Mtengo wake ndi wokwera mtengo. Amagwiritsidwa ntchito kwambiri kunja.
OPP
Kuwonekera bwino komanso kuuma kolimba
Chikwama cha kompositi
Chisindikizocho ndi champhamvu, chosindikizika, ndipo inki sichitha
Co-extrusion bag
Kuwonekera bwino, mawonekedwe ofewa, osindikizidwa

Matumba apulasitiki amatha kugawidwa m'magulu osiyanasiyana azinthu ndikugwiritsa ntchito: matumba apulasitiki oluka ndi matumba afilimu apulasitiki.
Chikwama choluka
Matumba opangidwa ndi pulasitiki amapangidwa ndi matumba a polypropylene ndi matumba a polyethylene malinga ndi zida zazikulu;
Malingana ndi njira yosoka, imagawidwa m'matumba apansi okhala ndi seams ndi matumba apansi okhala ndi seams.
Amagwiritsidwa ntchito kwambiri ngati zopangira zopangira feteleza, mankhwala ndi zinthu zina. Njira yayikulu yopangira ndikugwiritsa ntchito zida za pulasitiki kutulutsa filimuyo, kudula, ndikutambasulira mosasunthika kukhala ulusi wathyathyathya, kenako kuluka zinthuzo kudzera mu warp ndi weft, zomwe nthawi zambiri zimatchedwa matumba oluka.
Mawonekedwe: kulemera kopepuka, mphamvu yayikulu, kukana kwa dzimbiri, etc., mutatha kuwonjezera filimu ya pulasitiki, ikhoza kukhala chinyezi komanso chinyezi; thumba lopepuka la thumba lili pansi pa 2.5kg, thumba lapakati ndi 25-50kg, thumba lolemera ndi 50-100kg
Chikwama chamafilimu
Zopangira za matumba afilimu apulasitiki ndi polyethylene. Matumba apulasitiki abweretsadi kufewetsa m'miyoyo yathu, koma kumasuka pa nthawi ino kwabweretsa kuvulaza kwanthawi yayitali.
Zodziwika ndi zida zopangira: matumba apulasitiki apamwamba kwambiri a polyethylene, matumba apulasitiki a polyethylene otsika, matumba apulasitiki a polypropylene, matumba apulasitiki a polyvinyl chloride, etc.
Zodziwika ndi maonekedwe: Chikwama cha T-shirt, chikwama chowongoka. Matumba osindikizidwa, matumba a pulasitiki, matumba ooneka ngati apadera, etc.
Mawonekedwe: Matumba opepuka amanyamula kuposa 1kg; matumba apakati katundu 1-10kg; matumba olemera 10-30kg; matumba a chidebe amanyamula kuposa 1000kg.