一, Mbipụta ihe nkwakọ ngwaahịa mgbanwe nri
①Usoro obibi akwụkwọ
Food mgbanwe nkwakọ obibi akwụkwọ bụ tumadi gravure obibi na flexographic obibi, sochiri iji flexographic igwe na-ebipụta plastic film (flexographic ebipụta igwe na akọrọ composite igwe na-etolitekarị a mmepụta ahịrị), ma e nwere ọtụtụ ndịiche tụnyere izugbe gravure obibi na flexographic obibi akwụkwọ eji na mbipụta na ngwa ahịa obibi akwụkwọ. Dịka ọmụmaatụ, a na-ebi akwụkwọ nkwakọ ngwaahịa na-agbanwe agbanwe n'elu mpempe akwụkwọ mpịakọta. Ọ bụrụ na ọ bụ ihe nkiri na-egbuke egbuke, a pụrụ ịhụ ụkpụrụ ahụ site n'azụ, na mgbe ụfọdụ a na-ebipụta akwa akwa akwa ọcha, ma ọ bụ a na-eji usoro mbipụta n'ime.
②Nkọwa nke usoro mbipụta n'ime
Mbipụta dị n'ime na-ezo aka na usoro mbipụta pụrụ iche nke na-eji efere mbipụta nke ihe oyiyi na-agbanwe agbanwe na-ebufe ink n'ime akụkụ nke ihe eji ebi akwụkwọ na-emepụta ihe, ka e wee gosipụta ihe oyiyi oyiyi dị mma n'ihu ihe a na-ebipụta.
③Uru nke India
E jiri ya tụnyere ngwaahịa ndị a na-ebipụta n'elu, ngwaahịa ndị a na-ebipụta n'ime ime nwere uru nke na-egbuke egbuke ma mara mma, agba na-egbuke egbuke / ngwa ngwa, mmiri na iyi mgbochi; Mgbe e bipụtachara n'ime, a na-agbanye akwa ink n'etiti ihe nkiri abụọ, nke na-agaghị emetọ nkwakọ ngwaahịa ahụ.
二, Ngwakọta ihe nkwakọ ngwaahịa na-agbanwe nri
①Usoro ngwakọta mmiri mmiri
A na-ekpuchi akwa akwa nke mmiri na-edozi mmiri n'elu ihe nkedo (ihe nkiri plastik, aluminom foil), nke a na-ejikọta ya na ihe ndị ọzọ (akwụkwọ, cellophane) site na nrụgide nrụgide, wee kpoo ya n'ime ihe nkiri mejupụtara site na ọkụ ọkụ. ihicha ọwa. Usoro a na-emetụta ịkwakọ nri akọrọ.
②Usoro ngwakọta akọrọ
Mbụ, evenly kootu na ihe mgbaze dabeere nrapado na mkpụrụ, wee zipu ya na-ekpo ọkụ ihicha ọwa ime ka mgbaze n'ụzọ zuru ezu volatilize, na mgbe ahụ ozugbo compound ọzọ oyi akwa nke ihe nkiri. Dịka ọmụmaatụ, ihe nkiri polypropylene agbatị (OPP) na-ejikọta ya na ihe ndị ọzọ site na usoro ihe mejupụtara akọrọ mgbe e bipụtachara n'ime. Ụdị ihe a na-ahụkarị bụ: ihe nkiri polypropylene na-adabere na ya (BOPP, 12μ m) Aluminom foil (AIU, 9μ m) Na ihe nkiri polypropylene gbatịpụrụ na-enweghị isi (CPP, 70μ m).Usoro bụ evenly kootu na ihe mgbaze-ụdị "akọrọ nrapado ntụ ntụ" na isi ihe na a rola mkpuchi ngwaọrụ, wee zipu ya na-ekpo ọkụ ihicha ọwa ka n'ụzọ zuru ezu volatilize ihe mgbaze, na mgbe ahụ compound ya ọzọ oyi akwa nke ihe nkiri na. rola ihe mejupụtara.
③Usoro ngwakọta nke extrusion
A na-agbanye ákwà mgbochi ahụ dị ka polyethylene a wụrụ awụ nke a na-esi na mgbape nke T ebu na-agbanye ya site na ihe na-ekpuchi ya ma tinye ya na mpempe akwụkwọ ma ọ bụ ihe nkiri maka mkpuchi polyethylene, ma ọ bụ ihe nkiri ndị ọzọ na-esi na akụkụ nke abụọ na-enye nri akwụkwọ, na polyethylene na-ejikọta ya dị ka a. bonding oyi akwa.
④Usoro ngwakọta ngwakọta na-ekpo ọkụ
Polyethylene-acrylate copolymer, vinyl acid-etylene copolymer na paraffin na-ekpo ọkụ ma gbazee ọnụ, wee kpuchie ya na isi ihe, ozugbo jikọtara ya na ihe ndị ọzọ mejupụtara wee mee ka ọ dị jụụ.
⑤Multi-layer extrusion mejupụtara usoro
A na-apịnye resins plastik dị iche iche nwere ihe dị iche iche n'ime ebu site na otutu extruders iji mepụta ihe nkiri mejupụtara. Usoro a anaghị eji adhesives na organic solvents n'etiti n'ígwé. Ihe nkiri ahụ enweghị isi dị iche na ọ nweghị ntinye ihe mgbaze na-emerụ ahụ. Ọ dabara maka nkwakọ nri nwere ogologo ndụ. Ọmụmaatụ, n'ozuzu Ọdịdị LLDPE/PP/LLDPE nwere ezi nghọta, na ọkpụrụkpụ bụ n'ozuzu 50-60.μ m. Ọ bụrụ na ndị shelf ndụ bụ ogologo, ọ dị mkpa iji ihe karịrị ise n'ígwé nke elu mgbochi co-extruded film, na n'etiti oyi akwa bụ akwa mgbochi ihe PA, PET na EVOH.
Oge nzipu: Mar-07-2023
