精品在线91 I 福利一区福利二区 I 国产精品夜夜嗨 I 亚洲五级片 I 色婷婷小说 I 椎名空在线观看 I 黄色一级大片免费版 I 久久久久久亚洲av毛片大全 I 国产日产欧洲无码视频 I 中文字幕视频免费在线观看 I 日本黄xxxxxxxxx100 I 亚洲精品天堂成人片av在线播放 I 快点cao我要被cao烂了 I 探花一区 I 亚洲不卡影院 I 亚洲在看 I 风流少妇 I 韩国黄色大片 I 国产一区二区电影在线观看 I 亚洲精品一区二 I av高清一区二区 I 特黄特色的大片观看免费视频 I 最新在线观看视频 I 国产一级揄自揄精品视频 I 午夜性一级视频 I 色综久久综合桃花网 I 你懂得中文字幕 I 日本在线观看天堂男亚洲 I 高清视频在线www色 I 巨爆乳无码视频在线观看 I 日本中文字幕一级 I 亚洲国产成人精品无码区宅男 I 久久精品国产99久久六动漫 I 久久狼人大香伊蕉国产 I 伊人久久大香线蕉综合bd高清 I 亚洲一级性 I 亚洲精品一区二区三区的 I 性欧美zozo另类娇小xxxx I 国产淫片免费看

The difference and advantage of POF heat shrinkable film and other shrinkable films

• 2018/4/25 13:04:20
• Industry dynamics

1. cost
The proportion of POF is 0.92, the thickness is 0.012mm, the actual unit cost is low. The proportion of PE is 0.92, the thickness is thinner than 0.03, the actual unit cost is higher. The proportion of PVC is 1.4, the thickness is 0.02mm, the actual unit cost is higher.
2. physical property
POF thin and toughened, moisture resistant, soft, high tensile strength, high tensile strength, high tear strength, adjustable shrinkage, better rubbing resistance because of the existence of LLDPE, PE thick and toughened, uniform thickness, good moisture resistance and soft texture. The tear strength is lower than POF, but far higher than PVC and poor in shrinkage. The resistance to rubbing is not as thick and brittle as POF. PVC and is not brittle and thick and thin. They all have poor moisture resistance, hard and brittle texture, low strength, low shrinkage and poor rubbing resistance.
3. cold resistance and other physical properties
POF cold resistance is very good, -50 C is not hard and brittle, not easy to break, can be used in frozen food packaging. After contraction packaging, -50 C --95 C is stored for a long time, stable and stable. Static and anti fogging treatment, not easy to pollute the dust, can keep the product clean and bright.PE cold resistance, in winter or after freezing, not hard, not brittle, so transportation is not easy to break Crack. It has electrostatic elimination treatment, not easy to dye dust, can keep the product clean. PVC cold resistance is very bad, in winter or after freezing, it will be brittle, so the transportation is easy to break. The longer the contract packaging, the tighter the contraction will be, the packaging is deformed. It is easy to stain the dust and make the product pollution blur.
4. processing performance
POF process does not produce water and will not stick to the seal. Maintenance and operation are easy. High toughness, smoothness and rubbing resistance make it suitable for automatic packaging of high speed production line. PE processing does not produce water, does not stick to sealing rod, easy maintenance and operation. High Toughening, low kneading, can be used for automatic packaging of high speed production line. PVC plus The process will produce volatile, easy to cause mechanical damage, and easy to stick on the sealing rod, the operation is inconvenient, maintenance is difficult.
5. security
After the POF contraction package, the four corners of the seal are soft and can not cut the hands and rub. After the contraction of PE, the seal is soft and can not cut the hands. After PVC contraction packaging, the four corners of the seal are hard and sharp, and it is easy to cut and bleed.
6. Environmental Hygiene
POF is non-toxic and does not produce toxic odor when processed. It is in line with the FDA and USDA standards of the United States. PE is non-toxic. It does not produce toxic gas when it is processed. It is in line with the FDA and USDA standards of the United States. PVC is toxic. Processing produces odors and toxic gases are gradually prohibited.