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Zulu Ejiri ya na nkwakọ nri na ihe ọṅụṅụ na njem. Nwere ike ịnye ndịiche ọrụ omenala.
N'ime ọha mmadụ nke oge a, site na mmụba na-aga n'ihu nke mmata ndị mmadụ banyere nchekwa nri na nchekwa gburugburu ebe obibi, nhọrọ nke ihe nkwakọ ngwaahịa na-aghọwanye ihe dị mkpa. Dị ka ihe oriri na-ebukarị ihe oriri, a na-eji karama plastik eme ihe n'ọtụtụ ebe n'akụkụ dị iche iche. Ụdị karama plastik a nwere ezigbo nkwụsi ike nke kemịkal, nke na-adịghị egbu egbu, nke na-adịghị njọ, na-enweghị ụtọ, iji hụ na nchekwa nke nri na nchekwa na usoro njem. Tụkwasị na nke ahụ, karama plastik nke ihe oriri na-enwekwa uru nke ìhè, nke na-adịgide adịgide, nhazi dị mfe na ịkpụzi, na-eme ka ọ bụrụ uru pụrụ iche n'ọhịa nke nkwakọ nri.
Enwere ike kewaa karama rọba nri n'ụdị ndị a:
1. Kalama PET: karama polyester, transperent ma ọ bụ translucent, nke a na-ejikarị eme ihe ọṅụṅụ, mmanụ oriri, jam, ihendori na nkwakọ nri ndị ọzọ. 2. karama HDPE: karama polyethylene dị elu, nke a na-ejikarị na mmiri ara ehi, yogọt, ihe ọṅụṅụ mkpụrụ osisi, condiments mmiri na ihe oriri ndị ọzọ. 3. Kalama PP: karama polypropylene, nke nwere ezigbo ikuku ikuku na nguzogide okpomọkụ, a na-ejikarị mmanụ esi nri, ngwa nri, sirop na nkwakọ ngwaahịa ndị ọzọ. Kalama 4.PS: karama polystyrene, transperent ma ọ bụ translucent, nke a na-ejikarị eme ihe maka ice cream, cheese, jam na nkwakọ nri ndị ọzọ.



1. Nkwakọ ngwaahịa ihe ọṅụṅụ: itinye karama rọba ihe oriri n'ọhịa nke ihe ọṅụṅụ na-aba ụba buru ibu, dị ka mmiri ịnweta mmiri, ihe ọṅụṅụ mkpụrụ osisi, ihe ọṅụṅụ tii, ihe ọṅụṅụ carbonated na ihe ndị ọzọ. Ekwesịrị ịchekwa ma bufee ihe ọṅụṅụ ndị a ogologo oge, na karama rọba nwere ike chebe ịdị mma nke ihe ọṅụṅụ ahụ ma gbochie mmetọ nke mpụga na oxidation. 2. Nkwakọ ngwaahịa condiment: soy sauce, mmanya mmanya, mmanụ esi nri na condiments ndị ọzọ dịkwa mkpa ka etinye ya na karama plastik ọkwa nri. Ngwaahịa ndị dị otú ahụ nwere ihe dị elu chọrọ maka ihe nkwakọba ihe, n'ihi na ihe ndị na-emepụta kemịkalụ dị na condiments nwere ike imeghachi omume na ihe nkwakọ ngwaahịa, na-emetụta àgwà na uto nke ngwaahịa ahụ. Karama plastik nwere ezigbo nkwụsi ike kemịkalụ iji hụ na ịdị mma na nchekwa nke condiments. Nkwakọ nri 3.Food: mmiri ara ehi, yogọt na ngwaahịa ndị ọzọ kwesịrị ịdị ọcha na ịdị ọcha n'oge nchekwa na njem. Karama plastik ọkwa nri nwere ezigbo akara na ihe mgbochi, nke nwere ike igbochi mwakpo nke oxygen na microorganisms nke ọma, si otú a na-agbatị ndụ ngwaahịa ahụ. 4.Health na-akwakọba ngwaahịa nlekọta ahụike: ahịa nke ngwaahịa nlekọta ahụike na-abawanye ụba, a na-etinyekwa ihe ndị dị elu maka ihe nkwakọ ngwaahịa. Site na arụmọrụ ya na nchekwa dị mma, karama rọba nri nri aghọwo nhọrọ mbụ maka nkwakọ ngwaahịa nlekọta ahụike. Ngwaahịa ahụike siri ike ma ọ bụ mmiri mmiri, dị ka mgbakwunye vitamin na ịnweta, na-akpakọkarị n'ime karama plastik ọkwa nri.