Now our daily life, plastic packaging bags have been involved in all aspects of our life, often used, especially common is the clothing packaging bags, supermarket shopping bags, PVC bags, gift bags, etc., so how in the end the correct use of plastic packaging bags it. First of all, we need to know that plastic bags can not be mixed, because the packaging of different items should be purchased by the corresponding plastic bags. Like food packaging bags are produced specifically for packaging food, its materials, and processes, etc. are high requirements for environmental safety; and chemical, clothing, and cosmetics and other plastic bags, they are different because of the different needs of the production process will also be different, and such plastic bags are not able to be used for packaging food, otherwise it will cause harm to human health.
When we buy plastic packaging bags, many people will habitually choose thick and sturdy bags, and we usually think that the thicker the better the quality of the bags, but in fact, not the thicker and stronger the better the bags. Because the national requirements for the production of plastic bags are very strict standards, especially for use in food packaging plastic bags, it is necessary to use the regular manufacturers produced by the relevant departments for approval of qualified products. Plastic bags for food must be marked with "food special" and "QS logo" such word mark. In addition, you can also see whether the plastic bag is clean against the light. Because qualified plastic bags are very clean, no impurities, however, poor quality plastic bags will see dirty spots, impurities. This is also a good way to visually judge the quality of plastic bags when we buy and sell them on a daily basis.
I believe that there are many people will be habitually based on the appearance, color to choose a good-looking plastic packaging bags, but in fact, this is a very unscientific approach. Because although there are many types of plastic packaging bags color, but we must be very careful when choosing, especially when used in plastic packaging bags containing edible items, from the color should be well considered, must choose the color of the more simple plastic bags to use, so at least its additives are not so much, the threat to food safety want more will also be less. These are plastic packaging bags in use to be clear, in addition to these aspects, the choice of formal plastic packaging bag manufacturers production is also very important. Only formal manufacturers, to ensure that the plastic packaging bags we use is safe.
The choice of materials is not arbitrary, the first should be combined with the characteristics of the goods, such as the form of goods (solid, liquid, etc.), whether it is corrosive and volatile and whether it needs to be stored away from light; powder products need to consider moisture resistance, so usually in the selection of bag material, will consider adding aluminum foil to increase the moisture resistance of the bag. Composite material is the most suitable choice for powder products. Composite material is through a certain method and technical means, two or more materials through a certain method of processing composite, so that it has the characteristics of a variety of materials to make up for the shortcomings of a single material to form a more perfect packaging material with comprehensive properties. Compared with traditional materials, composite materials have the advantages of saving resources, easy recycling, reducing production costs and reducing the weight of packaging, so they are increasingly valued and advocated.
Post time: Nov-17-2022