Ndi zida ziti zonyamula khofi zomwe zili ndi chitukuko chokhazikika?

Mwachitsanzo, atsogoleri amakampani opanga khofi padziko lonse lapansi monga Nestlé asintha kapisozi wa khofi kuchokera pa jakisoni woyambira wamitundu yambiri kukhala chinthu chimodzi chopangidwa ndi aluminiyamu, ndipo adalimbikitsa gulu la ogula kuti agwiritsenso ntchito.Zogulitsa zomwe zimagulitsidwa m'dziko langa zitha kubwezedwanso ndi ogula m'njira yobwezeretsanso zinyalala kuti akwaniritse bwino chikhalidwe chawo pobwezeretsanso pakati.Kuchokera ku chikopa cha ng'ombe kupita ku polyethylene yotsika kwambiri (LDPE), zobwezerezedwanso komanso zogwiritsidwanso ntchito mukhofi phukusiakhala akugwiritsidwa ntchito kwambiri kwa zaka zambiri.Komabe, sizinthu zonse zomwe zimakhala zosavuta kuchira.Komabe ntchito zowonjezera, monga valve degassing ndi zigawo zowonjezera zingasinthe kwambiri njira yathu yopangirakhofi phukusi.

Zotchuka zobwezeretsedwansokhofi ndi phukusi la chakudyamuzophika zophika ndi LDPE single material soft mack.LDPE ndi pulasitiki yopyapyala, yopepuka komanso yosinthika ya thermoplastic yomwe imatha kupirira kutentha pamwamba pa 100 ° C. Zimapangidwa ndi zigawo ziwiri za mafilimu a LDPE.Wosanjikiza wakunja amasindikiza ndi malaya kuti akwaniritse matte / kuwala, kukhudza, ndi ntchito zina.PE single -zakuthupi recyclable pulasitiki chakudya ma CD akhoza kutsekereza madzi, mpweya ndi mpweya mpweya woipa kuti zikhale zothandiza kwambiri kusunga kutsitsimuka kwa khofi.Kuperewera kwake ndikuti zinthu za PE sizingakwaniritse zoyikapo zopangira zida zamtundu wa aluminiyamu (muyezo wa EU PE wobwezeretsanso umatsimikizira kuti PE yakuda singagwiritsidwe ntchito ngati PE yobwezeretsanso) zomwe sizosavuta kukwaniritsa mawonekedwe a PE single -material ma CD ndizovuta kwambiri. m'lifupi, flatness, transparency, ndi kung'ambika kukana kuposa ma CD miyambo gulu.