Label class

summary:Plastic packaging bags mainly use low density and high specific strength, and can obtain high packaging yield of high-frequency machines, that is, "unit mass packaging volume or packaging area". Most plastics have good chemical resistance, good acid resistance, alkali resistance and various organic solvents, and will not oxidize when placed for a long time.

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Plastic packaging bags mainly use low density and high specific strength, and can obtain high packaging yield of high-frequency machines, that is, "unit mass packaging volume or packaging area". Most plastics have good chemical resistance, good acid resistance, alkali resistance and various organic solvents, and will not oxidize when placed for a long time. It is easy to form, and the energy consumption of forming is lower than that of metal materials such as steel. Good transparency, easy to color. Good strength, high strength performance per unit weight, impact resistance, easy to modify. The packaging strength of the high-frequency machine is high. Low processing cost. Excellent insulation properties. In synthesis, 25% is used in the packaging industry, which is an important sector of the plastic packaging bag industry. Plastic packaging bags are one of the four major materials in the packaging industry: paper and cardboard account for 30%, plastic accounts for 25%, metal accounts for 25%, and glass accounts for 15%. The above two 25% fully illustrate the importance of the plastic packaging industry. Although the plastic packaging industry is now the second packaging material, its surface is not as good as paper and glass.

key words: Label class

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