What do you know about composite packaging?

【Chinese Packaging Network News】Compound packaging is a packaging product that combines all kinds of packaging advantages in one, lower cost, beautifully printed; this product has: anti-static, anti-ultraviolet, moisture and oxygen barrier, cold and oil resistant, high temperature, preservation Oxygen-easily sealed and other characteristics, what are the commonly used composite packaging materials?


1 Anti-corrosion composite packaging material is a composite of preservatives as a coating to the middle of the material, the substrate is kraft paper, a layer of wax, the other two layers containing wax or asphalt, and add a preservative, the preservative can be slowly released. This kind of material is made into packaging bags and metal products. The preservatives can be filled in this confined space. A very thin protective film is deposited on the metal surface to protect the contents from corrosion.


2 oil-resistant composite packaging material This material is composed of two plastic films, the outer layer is a high-density polyethylene film with a special structure and properties, the inner layer is a thin and tough, non-toxic translucent plastic film. Packaging meat with this material will not leak oil, blood, and will not stick, the surface will not crust, and can maintain the original color, smell and taste of meat.


3 Fresh-keeping compound packaging material This is a compound made of gelatin, potato starch and edible salt. It is known as artificial “peel” and is used to store vegetables, fruits, eggs and other foods. It can extend its shelf life by more than 4 times. .


The 4th generation paper composite packaging material is made of 40% talcum powder and 60% polypropylene as a raw material to process a composite material like paper or cardboard. It has the feel of paper, but it is much more solid, heat sealable, excellent moisture resistance, dimensional stability, foldable, easy to print a variety of patterns.


5 Calcium-plastic material Calcium-plastic material is a kind of composite material that is made of synthetic resin as the main body and then filled with filler. It is mainly used in the manufacture of calcium plastic corrugated boxes and calcium plastic containers. The former is much better than corrugated cardboard boxes in terms of mechanical strength and moisture resistance. The appearance is beautiful, white, and the printing is eye-catching; the latter is generally processed by a blow molding process. Its strength High corrosion resistance and low cost. They are widely used for the packaging of various items.


6 FRP FRP is a polymer composite material, also known as reinforced plastic. FRP has high specific strength, impact resistance, resistance to cracking, good toughness, light weight, corrosion resistance, and easy processing. It can control performance and lower cost as required. It is mainly used in the manufacture of various packaging boxes, industrial transfer trays, boxes, containers, etc. It can also be used as high pressure liquefied gas, such as oxygen, nitrogen, acetylene, etc., packaging cartridges; also be used as chemicals, fertilizers, etc. Packaging barrels, storage tanks, etc.


7 Wood Plastic Wood plastic is a kind of composite material made of waste wood. It uses half of each sawdust and waste plastic as raw material. 'The plastic is melted and then the sawdust is extruded to make a sheet, and it is machined. Good performance, can punch, nail, saw, paint, mechanical strength is better than wood, and the same longitudinal and transverse properties; water resistance, corrosion resistance, easy to crack, and low cost. In the packaging can be used instead of wooden box packing.


8 Plastic Nonwovens Plastic nonwovens are composite new materials that are not made by a textile process. Also known as non-woven fabrics. It first processed the plastic raw material into a filamentous shape, and was formed by laminating hot and pressed composite latitude and longitude lines. It has a vertical cross-latitude composite structure, vertical and horizontal strength is high and uniform, the fiber is a combination of heat and dry, no misalignment, good stereotypes; light and soft, smooth surface; water resistance, corrosion resistance, chemical stability; safety, no Poison, in line with food hygiene requirements; processing performance is good, can be complex, sewing can also be processed, saving raw materials. However, due to raw material properties, it has poor heat resistance. Plastic non-woven fabrics are widely used in packaging and are mainly used in various packaging bags, such as important packaging for cement, pesticides, fertilizers, feed, food, etc., and can also be used for fresh packaging of vegetables, fruits, and other fresh foods. Commodity packaging.


The editor of China Packaging Network believes that although there are various kinds of composite packaging materials, the packaging can still be used according to the basic scope of application, and the composite packaging materials will also contribute to the packaging market.

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