Kodi Zinthu za PP ndi chiyani? ?
Polypropylene (PP), yomwe imadziwikanso kuti polypropene, ndi polima ya thermoplastic yomwe imagwiritsidwa ntchito m'njira zosiyanasiyana kuphatikizapo kulongedza ndi kulemba zilembo, nsalu (monga zingwe, zovala zamkati zotentha ndi makapeti)
Ndi yosinthasintha komanso yolimba, makamaka ikapangidwa ndi ethylene.
Kupolera kumeneku kumalola pulasitiki iyi kugwiritsidwa ntchito ngati pulasitiki yaukadaulo yomwe ili muzinthu zosiyanasiyana komanso ntchito zosiyanasiyana. Kuthamanga kwa madzi ndi muyeso wa kulemera kwa mamolekyu ndipo izi zimatsimikiza momwe idzayendere mosavuta panthawi yokonza. Zina mwa zinthu zofunika kwambiri za polypropylene ndi izi: Kukana Mankhwala: Maziko ndi ma asidi osungunuka sagwira ntchito mosavuta ndi polypropylene, zomwe zimapangitsa kuti ikhale chisankho chabwino pamabotolo okhala ndi zakumwa zotere, monga zotsukira, zinthu zothandizira oyamba, ndi zina zambiri.
Kodi GSM imayimira chiyani?
Chimayimira makulidwe a thumba. Nthawi zambiri zimakhala zovuta kuti tigwiritse ntchito masentimita kufotokoza makulidwe a thumba, koma n'zosavuta kuti timvetse ndi kulemera kwa thumba. Ndipo GSM zomwe zikutanthauza kuti gramu ya thumba pa mita imodzi ya sikweya timaidziwa. GSM yachizolowezi yomwe timagwiritsa ntchito pa thumba lopangidwa ndi pp ndi kuyambira 42 gsm mpaka 120 gsm. Digito ndi yayikulu, makulidwe ake ndi akulu. Mungasankhe makulidwe kutengera zomwe mukufuna. Mwachitsanzo, kuchuluka kwa zinthuzo ndi kwakukulu ndipo kulemera kwake sikolemera, mungasankhe GSM osati yayikulu kwambiri ndipo mtengo wake ndi wotsika mtengo. Koma ngati mungasankhe kukweza zinthu ndi voliyumu yaying'ono koma yolemera kwambiri, GSM yayikulu imafunika.
Chifukwa chiyani Masaka Opangidwa ndi Pp ali ndi kulimba ndi mphamvu zosiyana?
Kulimba ndi mphamvu zake zonse zimadalira mphamvu ya thumba lopangidwa ndi nsalu ya pp. Mphamvu yake ingatanthauzidwe ngati mphamvu yokoka mukayitambasula pamwamba pake. Mphamvu yake ndi "N", yaikulu ya N, yamphamvu ya thumba. Chifukwa chake ngati mukukhulupirira N ya thumba, tikhozanso kukuwonetsani zotsatira za mayeso.
Kodi kusindikiza kwa offset ndi kusindikiza kwa mitundu n'chiyani?
Kusindikiza kwa offset ndi njira yosavuta yosindikizira logo yanu, tisanachite offset, tidzapanga chikombole cha logo yanu kenako n’kuika chikombolecho pa chidebe chozungulira cha utoto. Ubwino wa kusindikiza kwa offset ndi wakuti, ndikosavuta kugwiritsa ntchito, kotsika mtengo kupanga zitsanzo, zovuta zake: mitundu siingakhale yoposa 4 ndipo mtundu wake siwowala ngati kusindikiza kwa utoto. Koma kusindikiza kwa utoto kungakhale kochuluka momwe mukufunira. Kumagwiritsa ntchito opp laminated kuphimba pamwamba pa thumba lopangidwa ndi pp, kotero mitunduyo ikhoza kukhala yosinthasintha kwambiri, mtundu wake ndi wabwino kwambiri. N’kovuta kusindikiza zitsanzo, ndipo ndalama zogulira nkhungu ndi zokwera mtengo kuposa kusindikiza kwa offset.
Nchifukwa chiyani thumba lopangidwa ndi laminated pp lolukidwa sililowa madzi?
Ngati thumba lopangidwa ndi nsalu ya pp lili ndi laminated, zomwe zikutanthauza kuti pamwamba pa thumba la pp pali pulasitiki yopyapyala kwambiri ya opp. Opp ndi yosalowa madzi. Zachidziwikire, titha kuyika thumba la Pe liner m'matumba a pp, komanso lingakhale losalowa madzi.