Dongguan Beite packaging materials Co., Ltd. said food bags will explode, do you know?
In our daily life, there is always a package of desiccant in the food packaging bag we buy. So, is a small package of desiccant really "explode in case of water" as the news said?
Desiccant, as the name suggests, is placed in food bags to keep dry and moisture-proof items. It includes physical drying and chemical drying. Generally, it includes quicklime desiccant, montmorillonite desiccant, calcium chloride desiccant, silica gel desiccant and fiber desiccant.
For a long time, quicklime desiccant is widely used in food desiccant because of its strong water absorption and low cost. Calcium oxide, the scientific name of quicklime, will produce a rapid chemical reaction with water to become an alkaline chemical substance calcium hydroxide, which will generate a large amount of heat instantly and turn water into steam. If such reaction occurs in a sealed plastic bottle, water vapor will cause the bottle to expand rapidly, and the pressure will eventually lead to the explosion of the plastic bottle. Even if the quicklime desiccant does not react in the sealed space when encountering water, the heat generated in an instant is likely to burn human skin. At the same time, the calcium hydroxide formed after calcium oxide meets water has strong corrosivity, and alkali liquor can corrode human body.
In fact, in the desiccant family, quicklime desiccant is the most dangerous one. In contrast, silica gel desiccant is safer and the only desiccant recognized by the European Union. It is a kind of water containing silica with high microporous structure. It is non-toxic, tasteless and odorless. It has stable chemical properties and strong hygroscopicity. Therefore, it is widely used in the storage and transportation of instruments, instruments, equipment, leather, bags, shoes, textiles, food, medicine, etc.
Another kind of desiccant is called discoloration silica gel. Dongguan Beite packaging material Co., Ltd. is made of pure natural bentonite, which is green, non-toxic and tasteless, and has no harm to human body. It has good adsorption performance at room temperature and general humidity, with adsorption activity, static dehumidification and odor removal. It not only has fast adsorption speed, high adsorption capacity, but also is non-toxic, tasteless, non-contact corrosive, no environmental pollution, especially for food packaging.
The fiber desiccant is made of pure natural plant fiber by special process. Especially the film coated fiber desiccant sheet, convenient and practical, does not take up space. Its moisture absorption capacity reaches 100% of its own weight, which is incomparable with ordinary desiccant. In addition, the product is safe and healthy, and the price is moderate. It is an ideal choice for many biological, health food and medicine.
Although the desiccant bags are marked with warning words, it is useless for the ignorant children and the illiterate elderly. Therefore, Dongguan Beite packaging materials Co., Ltd. proposes that the desiccant in children's food should be replaced with non-toxic and harmless materials. If the raw materials are harmful, strong and hard to break packaging paper must be used. If there is a package to separate the food from the desiccant in the food bag, parents must remove the desiccant at the same time when distributing the food to children. http://www.dgbpk.com/
Dongguan Beite packaging materials Co., Ltd
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