T\u00fai zipper<\/a><\/span><\/span><\/p>\n1. C\u00e1c c\u1ea5u tr\u00fac h\u00f3a h\u1ecdc kh\u00e1c nhau:<\/strong><\/em><\/span><\/p>\nC\u1ea5u tr\u00fac h\u00f3a h\u1ecdc c\u1ee7a t\u00fai ch\u00e2n kh\u00f4ng PA \/ PE kh\u00e1c v\u1edbi t\u00fai ch\u00e2n kh\u00f4ng PET \/ PE. PE, l\u00e0 m\u1ed9t \u0111\u1ea1i ph\u00e2n t\u1eed \u0111\u01a1n gi\u1ea3n bao g\u1ed3m c\u00e1c \u0111\u01a1n v\u1ecb -CH2- l\u1eb7p l\u1ea1i. PE \u0111\u01b0\u1ee3c t\u1ea1o th\u00e0nh b\u1eb1ng ph\u1ea3n \u1ee9ng tr\u00f9ng h\u1ee3p th\u00eam etylen. PET \u0111\u1ec1 c\u1eadp \u0111\u1ebfn polypropylene, l\u00e0 m\u1ed9t lo\u1ea1i nh\u1ef1a nhi\u1ec7t d\u1ebbo b\u00e1n tinh th\u1ec3.<\/span><\/p>\n<\/span> Bao b\u00ec h\u00fat ch\u00e2n kh\u00f4ng th\u1ef1c ph\u1ea9m<\/span><\/figcaption><\/figure>\n2. C\u00e1c t\u00ednh n\u0103ng kh\u00e1c nhau c\u1ee7a t\u00fai h\u00fat ch\u00e2n kh\u00f4ng:<\/strong><\/em><\/span><\/p>\nT\u00fai h\u00fat ch\u00e2n kh\u00f4ng PA \/ PE kh\u00f4ng m\u00f9i, kh\u00f4ng \u0111\u1ed9c, d\u1ea1ng s\u00e1p v\u00e0 c\u00f3 kh\u1ea3 n\u0103ng ch\u1ecbu nhi\u1ec7t \u0111\u1ed9 th\u1ea5p tuy\u1ec7t v\u1eddi. Nhi\u1ec7t \u0111\u1ed9 ho\u1ea1t \u0111\u1ed9ng t\u1ed1i thi\u1ec3u c\u1ee7a t\u00fai ch\u00e2n kh\u00f4ng PA \/ PE c\u00f3 th\u1ec3 \u0111\u1ea1t -70-100 \u2103, polyethylene c\u00f3 t\u00ednh \u1ed5n \u0111\u1ecbnh h\u00f3a h\u1ecdc t\u1ed1t, c\u00f3 th\u1ec3 ch\u1ecbu \u0111\u01b0\u1ee3c s\u1ef1 \u0103n m\u00f2n c\u1ee7a h\u1ea7u h\u1ebft c\u00e1c axit v\u00e0 ki\u1ec1m, kh\u00f4ng h\u00f2a tan trong c\u00e1c dung m\u00f4i th\u00f4ng th\u01b0\u1eddng \u1edf nhi\u1ec7t \u0111\u1ed9 ph\u00f2ng, \u0111\u1ed9 h\u00fat n\u01b0\u1edbc th\u1ea5p, c\u00e1ch \u0111i\u1ec7n t\u1ed1t, nh\u01b0ng kh\u1ea3 n\u0103ng ch\u1ed1ng l\u00e3o h\u00f3a nhi\u1ec7t k\u00e9m. PET \/ PE c\u00f3 kh\u1ea3 n\u0103ng ch\u1ed1ng va \u0111\u1eadp cao, t\u00ednh ch\u1ea5t c\u01a1 h\u1ecdc m\u1ea1nh v\u00e0 dai, c\u00f3 th\u1ec3 ch\u1ed1ng l\u1ea1i c\u00e1c dung m\u00f4i h\u1eefu c\u01a1 kh\u00e1c nhau v\u00e0 s\u1ef1 \u0103n m\u00f2n c\u1ee7a axit v\u00e0 ki\u1ec1m.<\/span><\/p>\n<\/span> Bao b\u00ec h\u00fat ch\u00e2n kh\u00f4ng<\/span><\/figcaption><\/figure>\n<\/span>Ti\u00eau chu\u1ea9n ki\u1ec3m tra vi\u1ec7c s\u1ea3n xu\u1ea5t t\u00fai h\u00fat ch\u00e2n kh\u00f4ng \u0111\u1ef1ng th\u1ef1c ph\u1ea9m l\u00e0 g\u00ec?<\/strong><\/em><\/span><\/span><\/h2>\n1. C\u00e1c h\u1ea1ng m\u1ee5c ki\u1ec3m tra \u0111\u1ed1i v\u1edbi t\u00fai m\u00e0ng \u0111\u01a1n t\u00fai \u0111\u1ef1ng th\u1ef1c ph\u1ea9m ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c chia th\u00e0nh c\u00e1c lo\u1ea1i sau: Ti\u00eau chu\u1ea9n ki\u1ec3m tra s\u1ea3n xu\u1ea5t t\u00fai \u0111\u1ef1ng th\u1ef1c ph\u1ea9m l\u00e0 g\u00ec?<\/strong><\/em><\/span><\/p>\n\n- \u2713<\/strong>B\u1ec1 ngo\u00e0i kh\u00f4ng \u0111\u01b0\u1ee3c c\u00f3 b\u1ea5t k\u1ef3 khuy\u1ebft t\u1eadt n\u00e0o nh\u01b0 b\u1ecdt kh\u00ed, l\u1ed7 th\u1ee7ng, v\u1ebft n\u01b0\u1edbc, \u0111\u01b0\u1eddng g\u00e2n th\u00f4 b\u1ea1o, \u0111\u1ed9 d\u1ebbo k\u00e9m v\u00e0 \u0111\u1ed9 c\u1ee9ng m\u1eaft c\u00e1 g\u00e2y c\u1ea3n tr\u1edf vi\u1ec7c s\u1eed d\u1ee5ng.<\/span><\/li>\n
- \u2713<\/strong>Th\u00f4ng s\u1ed1 k\u1ef9 thu\u1eadt, chi\u1ec1u r\u1ed9ng, chi\u1ec1u d\u00e0i, \u0111\u1ed9 l\u1ec7ch \u0111\u1ed9 d\u00e0y ph\u1ea3i n\u1eb1m trong ph\u1ea1m vi quy \u0111\u1ecbnh.<\/span><\/li>\n
- \u2713<\/strong>C\u00e1c ch\u1ec9 ti\u00eau c\u01a1 l\u00fd bao g\u1ed3m \u0111\u1ed9 b\u1ec1n k\u00e9o v\u00e0 \u0111\u1ed9 gi\u00e3n d\u00e0i khi \u0111\u1ee9t, ph\u1ea3n \u00e1nh kh\u1ea3 n\u0103ng co gi\u00e3n c\u1ee7a s\u1ea3n ph\u1ea9m trong qu\u00e1 tr\u00ecnh s\u1eed d\u1ee5ng, n\u1ebfu kh\u00f4ng \u0111\u1ea1t ti\u00eau chu\u1ea9n th\u00ec t\u00fai bao b\u00ec th\u1ef1c ph\u1ea9m r\u1ea5t d\u1ec5 b\u1ecb \u0111\u1ee9t v\u00e0 h\u01b0 h\u1ecfng trong qu\u00e1 tr\u00ecnh s\u1eed d\u1ee5ng.<\/span><\/li>\n<\/ul>\n
\n\n\n<\/span><\/td>\n | <\/span><\/td>\n<\/tr>\n<\/tbody>\n<\/table>\n 2. \u0110\u1ed1i t\u01b0\u1ee3ng ki\u1ec3m tra c\u1ee7a t\u00fai m\u00e0ng gh\u00e9p bao b\u00ec \u0111\u1ef1ng th\u1ef1c ph\u1ea9m ch\u1ee7 y\u1ebfu \u0111\u01b0\u1ee3c chia th\u00e0nh c\u00e1c lo\u1ea1i sau:<\/strong><\/em><\/span><\/p>\n\n- \u2713<\/strong>B\u1ec1 ngo\u00e0i ph\u1ea3i nh\u1eb5n, kh\u00f4ng c\u00f3 v\u1ebft x\u01b0\u1edbc, v\u1ebft ch\u00e1y, b\u1ecdt kh\u00ed, d\u1ea7u b\u1ecb h\u1ecfng v\u00e0 n\u1ebfp nh\u0103n, \u0111\u1ed3ng th\u1eddi ni\u00eam phong nhi\u1ec7t ph\u1ea3i nh\u1eb5n v\u00e0 kh\u00f4ng c\u00f3 ni\u00eam phong gi\u1ea3. M\u00e0ng kh\u00f4ng \u0111\u01b0\u1ee3c c\u00f3 v\u1ebft n\u1ee9t, l\u1ed7 r\u1ed7ng v\u00e0 s\u1ef1 ph\u00e2n t\u00e1ch l\u1edbp h\u1ed7n h\u1ee3p. Kh\u00f4ng c\u00f3 t\u1ea1p ch\u1ea5t, v\u1eadt th\u1ec3 l\u1ea1 v\u00e0 v\u1ebft d\u1ea7u v\u00e0 \u00f4 nhi\u1ec5m kh\u00e1c.<\/span><\/li>\n
- \u2713<\/strong>Ch\u1ea5t l\u1ecfng ng\u00e2m trong t\u00fai kh\u00f4ng \u0111\u01b0\u1ee3c c\u00f3 m\u00f9i, m\u00f9i \u0111\u1eb7c bi\u1ec7t, kh\u00f4ng b\u1ecb \u0111\u1ee5c v\u00e0 bi\u1ebfn m\u00e0u.<\/span><\/li>\n<\/ul>\n
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