PET/PE/EVOH/PE coated film

EVOH can be regarded as EVA (ethyleneacetic acid ethylene ester copolymer) modified material. Its most remarkable characteristic is that it has excellent gas obstruct ability, which is 10000 times higher than polyethylene. To the gas and the solvent, it also has good barrier properties. It has both ethylene polymers good process capability and vinyl alcohol polymers high gas obstruct ability. It is a new colorless, transparent obstruct material, and the PVDC, PA, the three material are the best barrier resin in the world. It also has excellent oil resistance and the resistance of organic solvents, excellent antistatic properties, it can regenerate, doesnt contain Chlorine and Dioxin, is green product. In dry and relative humidity(RH60% condition its permeability is extremely low, but the gas barrier property is 10 to 50 times or even more times higher than Nylon, is only behind the aluminum foil. According to the use of soft packaging, you must considered the materials process capability and physical property, to choose EVOH as the barrier layer, can prevent oxygen and water vapor infiltrating into the content and also can chain up the aroma, fluid juice and the solvent of the content. Thus it solved the problem that the contents (liquid, gas) dissolved the compound water glue. In some areas, the EVOH has gradually replace the metallic film, foil and rigid container. EVOH has excellent oil resistance, organic solvent resistance and aroma protection. It can maintain the fragrance for a long time, also can prevent the exterior bad gas infiltrating into the content. At the same time, it is easy to recycling. After burning, it doesnt cause any harmful gas. Because of these excellent abilities, it has called green environment protection material, is being received various countries attention and show the best growth trend in the market. After many years' research, we discovered that if we select the international import raw materials, use the latest co-extruded process flow, the production which contains the EVOH high obstruct ability. Then compound many kinds of base materials like PE, PP, PVC, polystyrene, PET, PA and so on. The Oxygen transmission rate can be reduced to a small percentage even one thousandth. According the requirement of the obstruct effect, it can be coated on single side or double sides or even multilayer coated. The production of multilayer coated film for the automatic liquid filling machine, not only solved the moisture absorption problem, but also allows the material has a good economical efficiency. To each kind of active ingredient, the low adsorbability, high obstruct ability, can prevent the loss of effective component; the excellent oxygen resistance, can prevent the oxidation and metamorphism of the effective component; the excellent transparent ability, can be applied to the oxygen sensitive goods. The packaging content can be solid granulespowdery productsfluid products. Chemical oil resistance EVOH compound film has excellent oil resistance and organic liquor resistance. Put it in the liquor and oil in the 68 degree F. A year later, the increased percentage of the weight is : to the cyclohexane, xylene, petroleum ether, benzene and acetone is 0% ; to the glycol is 2.3% ; to the methanol is 12.2%; to the salad oil is 0.1%. Thermal/ Mechanical Properties EVOH compound film has high mechanical strength, the flexibility, the skin hardness, the friction-resistant ability and the weatherability, it also has strong antistatic property. The material has high gloss and the low fog density, so it has a high degree of transparency.