The role of cling film in cling film packaging machine
The
health of food is a topic that people have always cared about,
especially children, because resistance is weaker than adults. Therefore,
for the quality of food, people have invented the wrap film packaging
machine, as the name suggests is the machine for the production of
plastic wrap, then what is the use of cling film? Let's get to know it with Xiaobian.
The first is to isolate it from the air. This is not difficult to understand. It can keep the vegetables, fruits, cold meat and other fresh foods fresh and not polluted by external dust, bacteria and microbes. In everyone, you should know that plastic wrap can be used to moisturize. Some of these crushes also use plastic wrap to lose weight, while plastic wrap packaging machine uses cling film to prevent the evaporation of water in the food; the third is to maintain food nutrition is not destroyed.
To achieve these three functions, not all plastic films can be made. It can not be said that the agricultural mulch film and the relatively thick plastic film are used as plastic wrap, but if it is too thick, it will cause the food not to "breath", and it is easy to anaerobic fermentation, thereby decaying and decaying. “Even if it is a qualified plastic wrap, the wrap can be kept fresh, and the two layers are not preserved. The plastic wrap not only insists that the water is not volatilized, but also allows the carbon dioxide inside to come in. The oxygen outside can come in, just like a mask. If it is too thick, people can't breathe.
Look at the variety of wrap film on the market with Xiaobian:
The first type is polyethylene, referred to as PE. This material is mainly used for food packaging and has a high temperature resistance of about 110 degrees Celsius.
The second type is polyvinylidene chloride (PVDC), which is mainly used for the packaging of some cooked foods, meat products, raw fish and other products. It can be used for refrigerator fresh-keeping or microwave ovens. It is resistant to heat (resistant to 140 degrees Celsius). ).
The third type is polyvinyl chloride, referred to as PVC. The plastic wrap of this material contains a plasticizer, which is harmful to the human body and is not allowed to be used in meat. At present, the plastic wrap is not seen in the regular track supermarkets, but because of the low price, some people in the wholesale market and other areas with poor control, there will be people.
PVC cling film itself contains a certain amount of vinyl chloride monomer, vinyl chloride monomer will melt into the food when it is hot or oil, although the PVC content of most PVC cling film on the market is lower than the highest specification, but It is difficult for this chemical substance to be completely excreted from the body. When the residual amount of vinyl chloride in the human body is excessive, the human health will be severely damaged.
In addition, PVC cling film must participate in plasticizers (ie, plasticizers) during consumption to make the cling film thinner and more transparent. Plasticizers containing plasticizers are easily released when exposed to oil or high temperatures (beyond 100 degrees Celsius). When food enters the body, it may cause male endocrine disorders and reproductive decline. Children are more vulnerable than adults.
The first is to isolate it from the air. This is not difficult to understand. It can keep the vegetables, fruits, cold meat and other fresh foods fresh and not polluted by external dust, bacteria and microbes. In everyone, you should know that plastic wrap can be used to moisturize. Some of these crushes also use plastic wrap to lose weight, while plastic wrap packaging machine uses cling film to prevent the evaporation of water in the food; the third is to maintain food nutrition is not destroyed.
To achieve these three functions, not all plastic films can be made. It can not be said that the agricultural mulch film and the relatively thick plastic film are used as plastic wrap, but if it is too thick, it will cause the food not to "breath", and it is easy to anaerobic fermentation, thereby decaying and decaying. “Even if it is a qualified plastic wrap, the wrap can be kept fresh, and the two layers are not preserved. The plastic wrap not only insists that the water is not volatilized, but also allows the carbon dioxide inside to come in. The oxygen outside can come in, just like a mask. If it is too thick, people can't breathe.
Look at the variety of wrap film on the market with Xiaobian:
The first type is polyethylene, referred to as PE. This material is mainly used for food packaging and has a high temperature resistance of about 110 degrees Celsius.
The second type is polyvinylidene chloride (PVDC), which is mainly used for the packaging of some cooked foods, meat products, raw fish and other products. It can be used for refrigerator fresh-keeping or microwave ovens. It is resistant to heat (resistant to 140 degrees Celsius). ).
The third type is polyvinyl chloride, referred to as PVC. The plastic wrap of this material contains a plasticizer, which is harmful to the human body and is not allowed to be used in meat. At present, the plastic wrap is not seen in the regular track supermarkets, but because of the low price, some people in the wholesale market and other areas with poor control, there will be people.
PVC cling film itself contains a certain amount of vinyl chloride monomer, vinyl chloride monomer will melt into the food when it is hot or oil, although the PVC content of most PVC cling film on the market is lower than the highest specification, but It is difficult for this chemical substance to be completely excreted from the body. When the residual amount of vinyl chloride in the human body is excessive, the human health will be severely damaged.
In addition, PVC cling film must participate in plasticizers (ie, plasticizers) during consumption to make the cling film thinner and more transparent. Plasticizers containing plasticizers are easily released when exposed to oil or high temperatures (beyond 100 degrees Celsius). When food enters the body, it may cause male endocrine disorders and reproductive decline. Children are more vulnerable than adults.
郑重声明：资讯 【The role of cling film in cling film packaging machine】由 Zhongshan Masen Hardware Technology Co., Ltd. 发布，版权归原作者及其所在单位，其原创性以及文中陈述文字和内容未经(企业库qiyeku.cn)证实，请读者仅作参考，并请自行核实相关内容。若本文有侵犯到您的版权， 请你提供相关证明及申请并与我们联系（qiyeku # qq.com）或【在线投诉】，我们审核后将会尽快处理。
—— 相关资讯 ——
