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one article 看懂15 type plastics packaging material material selection!
1. packaging bag
design structure: PET/PA/AL/CPP, PET/AL/PA/CPP design 理由: PET: high temperature resistance, rigid property good, printing property good, strong/high degree large. PA: high temperature resistance, strong/high degree large, flexibility property, retardant property good, resistant 穿刺. AL: most retardant property, high temperature resistance. CPP: is high temperature resistance grade, hot property good, 无毒无味. PVDC: high temperature resistance retardant material. GL-PET: 陶瓷蒸镀 film, retardant property good, micro 波. for/regarding specific product selection combined structure, transparent bag large more used for 蒸煮, AL箔 bag can used for ultra-high temperature 蒸煮.
图 true 空贴体 packaging （摄于 DuPont 展台）
2. 膨化休闲 food
3. large packaging bag
4. dry packaging
5. powder packaging
6.绿茶 packaging
设计 structure: BOPP/AL/PE, BOPP/VMPET/PE, KPET/PE design 理由: AL箔, VMPET, KPET均 is retardant property good material, for oxygen gas, water gas, retardant property good. AK箔, VMPET light property good. product price in.
7. use 油
design structure: PET/AD/PA/AD/PE, PET/PE, PE/EVA/PVDC/EVA/PE PE/PEPE design 理由: PA, PET, PVDC oil resistant property good, retardant property high. PA, PET, PE strong/high degree high, inner 层PE is 特殊PE, resistant 封口污染 property good, property high.
8. film
design structure: white PE/ white PE/ black PE design 理由: outer 层PE gloss good, machine strong/high degree high, in 间层PE is strong/high degree 承担者, inner is hot 封层, tool has light, retardant 隔, hot property.
9. abrasion packaging
design structure: PET/PE/AL/PE, PA/VMPET/PE design 理由: AL, PA, VMPET retardant property good, retardant water, retardant gas, PE hot property good.
10. force
design structure: pure force light 油/ ink /白BOPP/PVDC/ cold 封胶 design 理由: PVDC, VMPET均 is high retardant material, cold 封胶极 low temperature degree can combined, hot amount effect/influence force, due to in has relatively more 油脂, easy oxidation 变质, therefore structure in increase retardant oxygen 层.
11. material packaging bag
design structure: design 理由: for/regarding acid property material, PET, PA can provide good retardant property, resistant 巴氏杀菌, due to acid property long shelf life.
12. liquid 体清洁 agent bag
design structure: design 理由: upper structure retardant property good, material rigid property large, 适于立体 packaging bag, flexible good processing. inner is modified PE, resistant 封口污染 property good. strong/high 化BOPP increase material machine strong/high degree, add strong/high material retardant property can. PET improve/increase material resistant water property can and machine strong/high degree.
13. packaging cover/cap 材
design structure: coating /AL/剥离层/MDPE/LDPE/EVA/剥离层/PET. design 理由: PET is 无菌保护 film, can 剥离, in 进入无菌 packaging 区时, 揭开PET露出无菌 surface. AL箔剥离层 is 顾客饮 use 时揭开. in PE层 upper 事先冲 good use 孔, 揭开AL箔时即露出供饮 use 孔. AL箔 is high retardant use, MDPE rigid property relatively good, and AL箔 hot viscous property relatively good, LDPE价廉, inner 层EVA VA content 7%, VA>14%不允许直接接触 food, EVA low temperature hot resistant 封口污染 property good.
14. packaging
design structure: BOPA/VMPET/S-CPP design 理由: BOPA flexibility property 佳, resistant 刺穿, strong/high degree high, printing property good. VMPET strong/high degree high, retardant property good, can using/adopting increase type add thick plating material. S-CPP provide hot combined property, retardant property resistant property, using/adopting ternary copolymer PP. or using/adopting more 层共挤含 high retardant 隔EVOH, PA层 CPP.
15. heavy packaging bag
design structure: PE/ plastics material /PP, PE/纸/PE/ plastics material /PE, PE/PE design 理由: PE provide combined property, flexibility property good, resistant 跌落, plastics material strong/high degree high.
