The status of the Brief Analysis on food packaging

As the economy develops, it is now commonly used by white plastic bags to solve the problem easily damaged. Plastic bags plastic film (polyethylene, polypropylene, nylon film) made of a certain width of the narrow-band, or by hot stretching high strength, elongation of plastic webbing, and then the weaving of these sling percent. Plastic woven bag is much higher than the strength of the plastic film bags, and difficult to deformation, resistance to impact, or the woven surface Weave improved slip resistance, easy storage when stacking. However, pest control, moisture-proof performance, and environmental pollution. The composite plastic bags is a composite high barrier packaging materials, EVOH, PVDC, PET, PA and the PE, PP and other layers of plastic food packaging mold, pest control, shelf-life problem is basically solved, with a certain promotion applies to the value of However, due to environmental issues are increasingly being focused upon, and plastic products toxic to hinder its further development. With the progress of science and technology, microbiologists, clinicians further development of the thin films of many improved plastic (rubber, plastic tensile testing machine optional), will allow plastic bags for recycling, reduce environmental pollution. With the continuous development of packaging technology, an emerging paper bags, such as kraft paper packaging market, and packaging enterprises of all ages. Trapezoidal arrangement of the paste on each independent adhesion, making it a more solid compared with ordinary paper bag, and its strength increased by 1.5 times due to the bag at the end. Weight 25kg flour loaded four layers of kraft paper bag, free fall from 1.2m height, and still not break the package. As the paper itself is hygroscopic and can absorb the excess moisture in the food, but also effectively prevent the grain moisture due to environmental moisture leaving at the same time, the bag tightness than sacks, under the same conditions the shelf life may be extended 2 to 3 months. Use paper bags highlight the advantages of non-toxic, tasteless, in line with national food hygiene standards. And paper printing performance, according to the user's requirements, printing, graphics, text. The valve port of paper into a paper bag, the flour in the filling process is very convenient, rapidly filling speed can be increased by three times, and there is no dust flying, to improve the working environment. In addition, the valve mouth bag filling rectangular, easy palletizing, should not slip package. There are still a titanium alloy, carbon dioxide and other semiconductor as a catalyst mixed with polyethylene film, the catalyst can occur in the catalytic reaction and photochemical reactions in photosynthesis, as a result of incorporation of metal objects. The Photocatalyst polyethylene bags Sheng m, due to the semiconductor electronics is activated in a fever of non-equilibrium state, the formation of the temperature rising trends in the bag, prompting the rice water molecules decomposition to achieve the mold, fresh effect. Another is the use of packaging materials --- bulk Now the size of the grain bulk transport and bulk storage is expanding, mainly for food import and export. Transported in bulk can save the cost of food packaging, and can fit more food in the same unit of storage capacity, to facilitate the use of mechanized operations in the handling aspects of reach to reduce labor intensity, saving handling costs, etc..