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热词
    • 2. 发明授权
    • Method and apparatus for embossing plastic film
    • 压花塑料膜的方法和装置
    • US3894827A
    • 1975-07-15
    • US34548673
    • 1973-03-28
    • ETHYL CORP
    • RALEY GARLAND ERUTHERFOORD JAMES K
    • B29C69/00B29B9/00B29B13/00B29B13/02B29C33/00B29C35/04B29C35/06B29C43/00B29C59/00B29C59/04B29D1/00B29C15/00B29D7/22
    • B29B13/023B29C35/045B29C35/06B29C59/04
    • A method and apparatus for embossing thermoplastic material, particularly thin, flexible, thermoplastic film. A length of preformed thermoplastic film is fed through a zone of heated air to raise the temperature of the film above its softening point. The zone of heated air is provided by two opposed hot air ovens having external means for heating and recirculating air through the ovens. After the film exits from the hot air ovens, it is fed between opposed, counter-rotating, embossing rolls thereby embossing a pattern onto the film. The rolls are cooled to fix the embossed pattern onto the film. The embossed film has little or no tendency to curl, has good moduli, low surface gloss or light reflectance, deep embossed pattern, high tensile strength and high impact strength.
    • 用于压花热塑性材料,特别是薄的柔性热塑性薄膜的方法和装置。 一段长度的预成型热塑性薄膜通过加热空气区域进料,将薄膜的温度提高到其软化点以上。 加热空气区域由具有用于加热和再循环空气通过烤箱的外部装置的两个相对的热风炉提供。 在薄膜从热风炉出来之后,在相对的反向旋转的压花辊之间进给,从而将图案压印到薄膜上。 将辊冷却以将压花图案固定在膜上。 压纹膜几乎没有或没有卷曲倾向,具有良好的模量,低的表面光泽或光反射率,深刻的压花图案,高的拉伸强度和高的冲击强度。