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plastics bottle 底部 三角标告诉你 food grade plastics material property
Date: 2019-11-18 10:03
Views: 2749
Source: Internet
plastics products upper 三角标每 plastics device 皿, in 底部都 has 一 数字 (it is belt/tape 箭头 三角 type, type has 一 数字).
false 若数字 in "05" or above can ring again use. 而数字愈 large safety.
false small 于 "05", 即 "04" or below/following, 甚至没 has 数字, again utilizing or add hot use,
因 is it 会发放 has chemical material 质, 会致癌.
“1号”PET: water bottle, carbon acid material bottle
饮 material bottle ring use hot water
use: heat resistant 至70℃, combined 装暖饮 or 冻饮, high temperature liquid 体, or add hot easy deformation, has for has material melt 出. and, 科学家发现, 1号 plastics product use 10 month rear, can can 释放出致癌 material DEHP, for tool has property.
therefore, material bottle and other use 完 就丢掉, need again use is water 杯, or use material container other material product, 以免引发健康 issues 不偿失.
“2号”HDPE: use product, product
清洁不彻底建议不 need ring use
use: can in small 心清洁 rear heavy use, this container usually good 清洗, 残留原 has use product, formed fine temperature 床, most good need ring use.
“3号”PVC: currently very less used for food packaging
most good need 购买
use: this type of high temperature easy has has material generate, 甚至连 manufacturing process in it 都会释放, has material material 进入人体 rear, can can 引起乳癌, new 生儿先天 defect and other 疾病. currently, this type of material container already comparison less used for packaging food. if in use, 千万不 need let it hot.
“4号”LDPE: film, plastics film and other
保鲜 film in material surface 进 micro 波炉
use: heat resistant property strong/high, usually, combined PE保鲜 film in temperature degree ultra- 110℃时会出现 hot phenomenon, lower 一 人体无 method separation understanding plastics made agent. and, use film 包裹食 material add hot, material in very easy will film in has material solvent understanding 出. therefore, material micro 波炉, need lower 包裹 保鲜 film.
“5号”PP: micro 波炉餐 box/case
放入 micro 波炉时, cover/cap lower
use: can micro plastics box/case, can in small 心清洁 rear heavy use. need especially attention/notes, micro 波炉餐 box/case, box/case 体 确以5号PP manufacturing, box/case cover/cap 却以1号PE manufacturing, due to PE不 can high temperature, can and box/case 体一并放进 micro 波炉. is 保险起见, container micro front, cover/cap lower.
“6号”PS: 碗装泡面 box/case, fast box/case
别 use micro 波炉煮碗装方便面
use: also heat resistant also resistant 寒, can micro in, 以免因 temperature degree high 而释出 chemical material. and can used for strong/high acid (如柳橙汁), strong/high alkali property material 质, is separation understanding for 人体不 good polystyrene (PS), easy 致癌. therefore, need amount use fast box/case 打包滚烫 食 material.
PC胶遇 hot di 酚A
use: by a large amount of use types material, especially more used for bottle in, is has di 酚A而备受争议. 香港城市 large material and chemical 系副教授林汉华称, upper, need in made as PC process in, di 酚A百 separation 百转化 formed plastics structure, table/sheet products full has di 酚A, more upper 释出. is, has small amount di 酚A没 has formed PC plastics structure, can can 会释出而进入食 material or product in. therefore, small is upper, in use plastics container need outer attention/notes.
for di 酚A measures
PC in di 酚A, temperature degree high, 释放愈 more, speed degree fast. therefore, 不应以PC water bottle hot water, increase di 酚A(万一 has 话)释放 speed degree and concentrated degree. if water has is 7, lower methods can reduce 风险:
● use add hot.
●不 use 洗碗 machine , machine water 壶.
●不 let water in cationic light lower 直射.
●第 one-time use front, use small powder add temperature water 清洗, in room temperature in 自然烘 dry. is di 酚A会 in one-time use and long use 时释出 relatively more.
● if container has 任何摔伤 or loss, 建议停止 use, is plastics products surface if has fine micro 坑纹, easy fine 菌.
● 避免反复 use already aging plastics device tool.
plastics 名称--------代码 and for shrink 写代号如 lower 示:
polyester ——— 01—PET (宝特 bottle)
high density polyethylene (PE) —— 02—HDPE
polyvinyl chloride (PVC) ———— 03—PVC
low density polyethylene (PE) —— 04—LDPE
polypropylene (PP) ————— 05—PP (can resistant 100 degree above temperature degree)
polystyrene (PS) ———— 06—PS (heat resistant 60-70 degree, hot material generate 毒素, 燃烧时会释放 styrene)
other plastics 代码—— 07—Others
its in PP, PE, PVC is 英文名称 shrink 写. in 文名称 separation is polypropylene (PP), polyethylene (PE), polyvinyl chloride (PVC), full separation is: polypropylene, polyethylene, polyvinyl chloride
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人们 衣食住行都离不开 plastics products, upper in aviation device, lower to 人们脚 upper 穿 鞋, upper 穿 衣服, also has active in need for electrical 视, electrical 脑, machine and other use electrical appliances and other and other. 不, 人们天天 need is used for packaging food plastics bag, food plastics box/case, water use plastics bottle, use tool and other, this plastics products safety issues is large most 关心. has less 人一边 in use, in 脑海里打问号: plastics products to has has 毒?
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