Dongguan mask bag factory tutor, how do you tell whether the food packaging bag is safe?
Water detection method: put the plastic bag into the water, the non-toxic plastic bag can surface after being put into the water, while the toxic plastic bag does not float upward.
Hand touch detection method: touch the plastic bag with hand, which is non-toxic if there is a sense of lubrication; otherwise, it is toxic.
Shaking detection method: hold one end of the plastic bag by hand and pat it hard. If it makes a crisp sound, it is non-toxic; otherwise, it is toxic.
Fire detection method: a plastic bag can be cut to one side and burned with fire. Toxic ones are not easy to burn; non-toxic ones are easy to burn in case of fire.
The following points should be paid attention to when choosing and using qualified plastic packaging bags for food
1. the food packaging with plastic bags should be marked in Chinese, with the name of the factory, the address and the product name marked. The words "food" are clearly marked. All products are attached with product inspection certificate after delivery.
2. The plastic packaging bag for food is odorless and odorless when it leaves the factory. The plastic packaging bag with special smell cannot be used for food packaging.
3. Colored plastic packaging bags (dark red or black colors currently used in the market) cannot be used for food packaging. Because this kind of plastic packaging bags are often made of recycled plastic.
4. Materials without coating and coating shall be selected as far as possible. In modern packaging design, in order to make the package more beautiful and corrosion-resistant, a large number of materials with coating are used. This not only makes it difficult to recycle and reuse the discarded materials, but also most of the coatings are toxic. If people eat these packaged foods, it will cause great harm to people's health. In addition, the process of coating and plating also brings great pollution to the environment. Such as coating volatile toxic solvent gas, electroplating produced chromium and other heavy metal waste liquid, waste residue pollution. Therefore, we should try to choose the packaging materials without coating and coating.
5. The best choice of food is to buy in the big market, not to the street stalls.
6. due to the characteristics that food plastic bags are not easy to degrade, it will cause environmental pollution. Therefore, when the facial mask bag manufacturer purchases food, it is best to use green packaging materials. Paper is the most widely used green packaging material. Therefore, it is better to choose the original paper packaging when choosing food, and biodegradable plastic can also be used. http://www.ycritai.cn/
Dongguan Beite packaging materials Co., Ltd
Aluminum foil packaging bags, mask bags, self-supporting zipper bags, eight side sealing bags, red wine bags, dog food bags, beverage bags, bags in boxes, wrapped films, perforated fruit bags.