Itandukaniro riri hagati y'udufuka duhagaze n'udufuka duto two hasi.

PACK ya DQ yo gusobanura itandukaniro riri hagati y'udufuka duhagaze n'udufuka duto, mbere ya byose, reka dusobanukirwe imiterere y'ubwoko bubiri bw'udufuka.

Udupaki two guhagarara, mu by'ukuri, hari abantu benshi kuri interineti basobanurwa gutyo: ntushobora kwishingikiriza ku bintu byo hanze by'aho ushyigikira, hamwe na two ubwatwo dushobora guhagarara ku mifuka yo gupakira, ibi byitwa udupaki two guhagarara. Mu by'ukuri, ibisobanuro nk'ibi biroroshye cyane kwitiranya udupaki two guhagarara n'imifuka umunani yo ku ruhande. Niba hasi hari aho upfundika n'impande ebyiri, impande zo hejuru n'izo hepfo akenshi ziba zifite impande zipfunyitse, nyuma yuko hasi hafunguwe, agapaki gashobora guhagarara, kitwa udupaki two guhagarara. Imiterere isanzwe yo gupakira: NY/PE, PET/NV/PE, PET/NY/AL/PE, PET/VMPET/PE, impapuro zo gushushanya.

Imifuka yo hasi irambuye ishobora kandi kwitwa imifuka yo hasi ya Qual Seal, hasi yayo ni ndende, kandi impande umunani zipfunyitse, bityo byitwa imifuka umunani yo ku ruhande. Hari impande enye hepfo hamwe n'impande ebyiri ku mpande zo hasi, impande zose hamwe umunani. Ifite impande umunani zo ku ruhande ifite ubuso butanu bwo kwerekana: bumwe kuri buri ruhande rw'imbere n'inyuma, bumwe kuri buri ruhande rw'inyuma n'inyuma, hamwe n'ubundi hepfo. Ubushobozi bwo gupakira ni bwinshi mu buryo bwo gupakira: PET/AL/BOPA/PE, PET/AL/PE, BOPP/VMPET/PE, PET/VMPET/PE. Imifuka yo hasi irambuye nk'iyo ishobora gutwara amakuru menshi y'itangazamakuru n'itangazamakuru, bitewe n'ubushobozi bwo kwerekana neza ibiryo n'ikirango cyabyo imbere.