Nowadays, people's living standards are constantly improving, and people's requirements for the quality of life have become higher, which also makes the use of vacuum packaging bag
s more extensive, but how to protect the vacuum packaging bags so that they can be used for a long time Longer? How do we choose a vacuum bag? Four protection methods for vacuum packaging bags: 1. Since vacuum packaging bags are greatly affected by temperature, remember to try not to put them in places where the sun can reach directly, because strong ultraviolet radiation will accelerate the aging of vacuum packaging bags. 2. The vacuum packaging bag must avoid extreme heat and extreme cold as much as possible, so as to prevent the vacuum packaging bag from expanding and contracting and shortening its life. 3. Remember not to place the vacuum packaging bag in a humid and airless place, which will easily rot the packaging bag and affect its use. 4. For some vacuum bags that have not been used for a long time, be sure to check them carefully for cracks before starting to use them. The above are the four protection methods of vacuum packaging bags. We must remember this method in normal use, so that your packaging bags can have a better service life. Selection method of food vacuum packaging bags There are many types of vacuum bags, which are divided into two categories: industrial packaging and food packaging. The product standard required for food vacuum bags is significantly higher than that of ordinary industrial products. What aspects should be paid attention to when choosing food vacuum bags correctly? 1. The outer packaging of vacuum packaging bags for food must be marked in Chinese, with the name of the factory, the address of the factory, and the name of the product, and the words 'for food' should be clearly marked. Products are accompanied by a product inspection certificate after leaving the factory. 2. Vacuum packaging bags for food are odorless and odorless when leaving the factory, and vacuum packaging bags with special odor cannot be used for food packaging. 3. Colored vacuum bags (such as dark red or black currently on the market) cannot be used for food packaging. Because these vacuum bags are often made of recycled plastic. 4. Try to use materials that are not coated or plated. In modern packaging design, in order to make the packaging more beautiful and corrosion-resistant, a large number of materials with plating are used. This not only brings difficulties to the recycling and reuse of materials after the products are scrapped, but most of the coatings themselves are toxic. If people eat these packaged foods, it will cause great harm to people's bodies. In addition, the coating and plating process also brings great pollution to the environment. For example, the paint volatilizes toxic solvent gas, and the waste liquid and waste residue pollution containing heavy metals such as chromium are generated during electroplating. Therefore, packaging materials that are not coated or plated should be selected as far as possible. 5. It is best to buy food in big shopping malls instead of street stalls. 6. Due to the non-degradable characteristics of food vacuum packaging bags, it will cause environmental pollution. Therefore, when purchasing food, it is best to use green packaging materials. Paper is currently the most widely used green packaging material. Therefore, it is best to choose original paper packaging when purchasing food, and biodegradable plastics are also acceptable.
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