As everyone knows, medicines and food are clos […]
As everyone knows, medicines and food are closely related to the national economy and people's livelihood, so the packaging needs of medicines and food are very large. High demand stimulates high supply, but with it comes safety issues in food packaging. Through the survey data of the relevant food safety regulatory agencies, it is not difficult to see that some data indicators of food packaging products are far from those required by food safety, environmental protection and other aspects. This not only has an impact on the health of consumers. , And even make it difficult for the national food industry to develop healthily.
At present, the materials used in the production of food packaging in the world mainly include: metal, ceramics, plastics, paper, glass, composite films and so on. Plastic occupies a very large proportion of it. From street vendors, fast food restaurants to supermarkets, you can see plastic.
Food packaging plastics are basically thermoplastics, made of the following plastic films:
Thermoplastic polyester (PET) is the most widely used. The plastic that is in contact every day has low tensile strength and can be used outdoors for a long time, but it has low heat resistance, such as mineral water bottles and carbonated beverage bottles. It is only used for cold drinks. And warm drinks, when used to heat or hold high-temperature liquids, it is very easy to deform and release substances harmful to human health. Therefore, plastic bottles, etc. should be thrown away immediately after use. Do not use them as storage containers or water cups to avoid damage to the human body and cause small losses. Polyethylene (PE), polypropylene (PP) such as fresh-keeping boxes, microwave oven lunch boxes, etc., microwave lunch boxes are made of microwave special PP (high-temperature resistance 120 °C, low-temperature resistance -20 °C), but due to the cost The reason is that the lid is almost not a special PP, so the lid must be removed when heating in the microwave. Plastic materials such as polyvinyl chloride (PVC) are easy to release harmful substances when used at high temperatures, while polystyrene (PS) is heat-resistant at 60-70°C. Hot beverages will produce toxins and will release styrene when burned.
According to relevant data, plastic bags made of polyethylene, polypropylene, polyvinyl chloride and other materials are convenient to manufacture, low in price, and very versatile. However, because the recycling rate is less than a few percent, and there is no recycling. Plastic bags are everywhere, polluting the soil, rivers, air, etc., but also causing great pollution and damage to the environment.
Taizhou Jinfu Packaging Technology Co., Ltd. has two of our own PET factories and HDPE processing factories. We have design and processing services for Food Packaging bottles. Welcome to the official website to learn：https://www.jinfupack.com/