•Muna son kiran jakunkunan marufi masu sassauƙa na filastik.

•A zahiri, yana nufin cewa an haɗa kayan fim masu siffofi daban-daban tare kuma an haɗa su don taka rawar ɗaukar kaya, karewa da kuma ƙawata kayayyaki.

•Jakar marufi mai hadewa tana nufin wani yanki na kayan aiki daban-daban da aka haɗa tare.

•Manyan layukan jakunkunan marufi galibi ana bambanta su da layin waje, layin tsakiya, layin ciki, da kuma layin manne. Ana haɗa su zuwa layuka daban-daban bisa ga tsari daban-daban.

•Bari YPAK ya bayyana muku waɗannan matakan:

•1. Layin waje, wanda kuma ake kira layin bugawa da kuma layin tushe, yana buƙatar kayan aiki masu kyau na bugawa da kuma kyawawan halayen gani, kuma ba shakka kyakkyawan juriya ga zafi da ƙarfin injiniya, kamar BOPP (polypropylene mai shimfiɗa), BOPET, BOPA, MT, KOP, KPET, polyester (PET), nailan (NY), takarda da sauran kayan aiki.

•2. Ana kuma kiran matakin tsakiya da layin shinge. Wannan matakin galibi ana amfani da shi don ƙarfafa wani fasali na tsarin haɗin gwiwa. Yana buƙatar samun kyawawan halaye na shinge da kuma kyakkyawan aikin hana danshi. A halin yanzu, waɗanda aka fi sani a kasuwa sune aluminum foil (AL) da aluminum-plated film (VMCPP)., VMPET), polyester (PET), nailan (NY), polyvinylidene chloride film (KBOPP, KPET, KONY), EV, da sauransu.

•3. Layi na uku kuma shine kayan Layer na ciki, wanda kuma ake kira Layer sealing na zafi. Tsarin ciki gabaɗaya yana hulɗa kai tsaye da samfurin, don haka kayan yana buƙatar daidaitawa, juriya ga shiga, kyakkyawan rufe zafi, bayyananne, buɗewa da sauran ayyuka.

•Idan abincin da aka shirya ne, to yana buƙatar ya zama ba mai guba ba, mara ɗanɗano, mai jure ruwa, kuma mai jure mai. Kayan da aka saba amfani da su sun haɗa da LDPE, LLDPE, MLLDPE, CPP, VMCPP, EVA (ethylene-vinyl acetate copolymer), EAA, E-MAA, EMA, EBA, Polyethylene (PE) da kayan da aka gyara, da sauransu.