The characteristics and development of plastic packing
Plastic density is small, higher than strength, can obtain a higher rate of packed, namely "the quality of unit packing volume or packing size. Most of the plastic good chemical resistance, good acid resistance, alkali resistance, resistance to all kinds of organic rong agent, placed for a long time, not an oxidation. Forming easily, the energy consumption is lower than metal materials such as steel. Has the good transparency, easy coloring. Plastic packaging is one of the four materials in the packaging industry, paper and paperboard (30%), plastic (25%), metal (25%), glass (15%). The above two 25% fully illustrate the importance of the plastic packaging industry. Plastic packaging industry although it is the second packaging materials, actually with surface than paper and cardboard packaging. But the plastic packaging industry according to the rate of 5% a year in the development of plastic packaging industry will be one day more than paper and paperboard and became the first packing material.