Mbiri ya makapu a mapepala

Mbiri ya makapu a mapepala imadutsa mu magawo anayi: makapu a mapepala a conic / pleated makapu oyambirira a mapepala anali osakanikirana, opangidwa ndi manja, amamatira pamodzi, osavuta kupatukana, ndipo ankayenera kugwiritsidwa ntchito mwamsanga.Pambuyo pake, makapu opindika adawonjezedwa pamakoma am'mbali kuti awonjezere mphamvu ya makoma am'mbali ndi kukhazikika kwa chikhocho, koma zimakhala zovuta kusindikiza mawonekedwe pazipinda zopindikazi, ndipo zotsatira zake sizabwino kwambiri.Waxed Paper Cup mu 1932, kapu ya pepala yopaka phula ziwiri zoyambirira idatuluka, pamwamba pake yosalala imatha kusindikizidwa pamitundu yosiyanasiyana yosangalatsa, kupititsa patsogolo kukwezedwa.Kumbali imodzi, kupaka sera pa kapu ya pepala kungapewe kukhudzana kwachindunji pakati pa chakumwa ndi zinthu zamapepala, ndipo kumatha kuteteza zomatira ndikuwonjezera kulimba kwa kapu ya pepala;Kumbali inayi, imawonjezeranso makulidwe a khoma lakumbali, kotero kuti mphamvu ya kapu ya pepala imakulitsidwa kwambiri, motero, kugwiritsa ntchito mapepala kofunikira popanga makapu amphamvu a mapepala kumachepetsedwa, ndipo mtengo wopangira umachepetsedwa.Pamene makapu a mapepala opakidwa phula akukhala zotengeramo zakumwa zoziziritsa kukhosi, anthu amayembekezeranso kugwiritsa ntchito chidebe choyenera kupangiramo zakumwa zotentha.Komabe, zakumwa zotentha zidzasungunula sera mkati mwa chikho, zomatira pakamwa zidzalekanitsidwa, kotero kuti chikho cha pepala chophimbidwa ndi sera si choyenera kunyamula zakumwa zotentha.

Mpikisano wa Double-wall-wosanjikiza Cup, kuti muwonjezere kuchuluka kwa ntchito, mu 1940, Cup yamitundu iwiri yowongoka idayambitsidwa pamsika.Kapu ya pepala sikoyenera kunyamula, komanso ingagwiritsidwe ntchito kusunga zakumwa zotentha.Pambuyo pake, opanga makapu awa okutidwa ndi latex kuti aphimbe pepala ndi "fungo la makatoni" ndikulimbitsa kutayikira kwa kapu ya pepala.Makapu a sera amodzi omwe amakutidwa ndi latex amagwiritsidwa ntchito kwambiri pamakina ogulitsa khofi wotentha.TACHIMATA makapu pepala, ena chakudya makampani anayamba polyethylene TACHIMATA pa makatoni kuonjezera chotchinga ndi kusindikiza kusindikiza mapepala.Chifukwa chakuti malo osungunuka a polyethylene ndi okwera kwambiri kuposa sera, kapu ya pepala yachakumwa chatsopano yokutidwa ndi polyethylene itha kugwiritsidwa ntchito kusunga zakumwa zotentha.Pa nthawi yomweyo, polyethylene ❖ kuyanika kuposa choyambirira sera ❖ kuyanika yosalala, kusintha maonekedwe a mapepala makapu.Kuphatikiza apo, ukadaulo wake wowongolera kuposa kugwiritsa ntchito njira yokutira ya latex ndi yotsika mtengo komanso yachangu.