Chikwama cha pepala la Brown
Kraft paper bag ndi chidebe choyikamo chopangidwa ndi zinthu zophatikizika kapena pepala loyera la kraft.Ndiwopanda poizoni, wosakoma, wosaipitsa, wochepa mpweya komanso wokonda chilengedwe.Imakwaniritsa miyezo yadziko lonse yoteteza zachilengedwe.Lili ndi mphamvu zambiri komanso chitetezo chokwanira cha chilengedwe.Pakali pano ndi imodzi mwazinthu zodziwika bwino zosungirako zachilengedwe padziko lapansi.Matumba a Kraft amapangidwa ndi pepala lamatabwa ngati maziko.Mitunduyo imagawidwa kukhala pepala loyera la kraft ndi pepala lachikasu la kraft.Pepalali limatha kukutidwa ndi zinthu za PP kuti lizigwira ntchito yopanda madzi.Mphamvu ya thumba ikhoza kupangidwa kuchokera ku 1 mpaka 6 zigawo malinga ndi zofuna za makasitomala., Kusindikiza ndi kupanga matumba kumaphatikizidwa.Njira zotsegula ndi zophimba kumbuyo zimagawidwa kukhala kusindikiza kutentha, kusindikiza mapepala ndi phala pansi.
Mphamvu yothyoka ya thumba loluka ndi njira yolumikizira mphamvu ya thumba loluka.Njira yothanirana ndi kusweka kwa mphamvu yojambula ndikuwongolera kuchuluka kwa zinthu zopangira, kuzizira kupangika kwa diaphragm ndi mphamvu yojambulira.
Njira yopangira imagwirizana ndi chilengedwe komanso zinthu.Chodzaza ndi chimodzi mwazinthu zazikulu za gawo lazopangira, zomwe zimatha kusintha mawonekedwe a burashi ndikuchepetsa mtengo.Pamene mphamvu yamagetsi ya kapu yamagetsi ikuwonjezeka, mphamvu yowonongeka ya burashi idzachepa pang'onopang'ono.Ichi ndi chifukwa chigawo chachikulu cha kudzazidwa masterbatch ndi kashiamu carbonate, amene alibe mavuto, Omwazika mu kusiyana kwa polyolefin polima unyolo, palibe chikoka chachikulu pa kujambula mphamvu wamakokedwe, kuti kusintha stiffness kujambula.Pamene kuchuluka kowonjezera kupitirira 20% - 25%, masterbatch yolipiritsa idzatenga malo a unyolo wa polima ndikulepheretsa kusinthika kwapolymer, kotero kuti unyolo wa polima sungathe kuchulukitsidwa mokwanira ndi mphamvu yakunja yakutali.
