Pofuna kuteteza zomwe zili mu phukusi kuti zisawonongeke, thumba la envelopu limagwiritsa ntchito thumba lotetezedwa ndi thovu. Kawirikawiri limagawidwa m'mitundu iwiri, matumba a thovu a kraft paper ndi matumba a thovu a filimu ya ngale.
Ponena za matumba a thovu a kraft paper ndi matumba a thovu a filimu ya ngale, awiriwa ndi mawu wamba, ndipo gawo lililonse likhoza kuphimbidwa ndi makulidwe osiyanasiyana a thovu la filimu. Ponena za zinthu zakunja, pepala labwino la kraft ndi lolimba kwambiri ndipo lili ndi chitetezo chabwino komanso kukongola.
Envelopu ya thovu la pepala la Kraft, yomwe imadziwikanso kuti thumba la thovu la kraft paper composite, zinthu zake ndi izi: kraft paper ndi PE, kapangidwe kake: gawo lakunja ndi pepala la kraft (loyera, lachikasu kapena lachilengedwe), lokhala ndi filimu ya thovu.
Gawo lakunja ndi pepala la kraft (loyera, lachikasu kapena lachilengedwe), pamwamba pake ndi losalala komanso losavuta kulemba; mitundu yosiyanasiyana, zizindikiro zamalonda ndi zilembo zimatha kusindikizidwa malinga ndi zosowa za makasitomala popanda kuphwanya ufulu wa ena wa chidziwitso, ndipo zimatha kuwonongeka; zophimbidwa ndi filimu ya thovu, Buffer ndi zotsatira zoteteza kugwedezeka kuti zinthu zisawonongeke chifukwa cha kukakamizidwa, kukhudzidwa ndi kugwa; palibe guluu wogwiritsidwa ntchito pakati pa zipangizo za gawo lililonse, lopanda poizoni komanso loteteza chilengedwe; kapangidwe ka mzere wodzimatira wa pakamwa pa envelopu ndikosavuta kugwiritsa ntchito;
Mtundu wa pepala la kraft makamaka ndi wachikasu wagolide, ndipo palinso mitundu yachilengedwe ndi yoyera. Zambiri zina za kapangidwe kake zitha kusinthidwa malinga ndi zosowa za makasitomala. Mawonekedwe ake onse ndi okongola, gawo lakunja ndi losavuta kulemba, ndipo limatha kulembedwa. Ndipo poyerekeza ndi mtengo wachikhalidwe wopaka, chinthuchi ndi chopepuka, chomwe chingasunge 35% ya ndalama zopaka ndi kutumiza makalata; kuteteza chilengedwe - chobwezerezedwanso, chomwe chili chofunikira kwambiri pakuteteza chilengedwe.
Kutengera ndi makhalidwe omwe ali pamwambapa, matumba a envelopu a Kraft paper bubble amagwiritsidwa ntchito makamaka pa positi office express, logistics express, zinthu zamagalasi aluso, ma CD, matepi amakanema, matepi a maginito, ma DVD DVD, mphatso, zodzikongoletsera, zoyambira zinthu, mabuku, zida zamagetsi, nsalu, mapulogalamu amasewera, zoseweretsa, zida zamankhwala, mafelemu azithunzi, matebulo, ma CD drive, mankhwala, ndi zina zotero. Tetezani chitetezo cha zinthu zomwe zitumizidwe, ndikuletsa zinthuzo kuti zisawonongeke pokanikiza, kukhudza ndi kugwa panthawi yotumiza makalata.
Chikwangwani chodzitsekera chokha cha thumba la thovu
Chikwama chosalowa madzi choyezera thonje
Zinthu zonse zimayesedwa mokakamizidwa ndi labu yapamwamba kwambiri ya QA ndipo zimalandira satifiketi ya patent.