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第二章 覆 膜 - PowerPoint PPT Presentation


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第二章 覆 膜. 定义. 将涂有粘合剂的塑料薄膜覆盖在印刷品的表面,再经加热、加压处理,使塑料薄膜与印刷品粘合在一起,成为纸 / 塑合一成品的加工技术。. 1- 塑料薄膜  2- 粘合剂  3- 印刷品. 覆膜的作用和特点. 经覆膜的印刷品,由于表面多了一层薄而透明的塑料薄膜,表面更加平滑光亮,从而提高了印刷品的光泽度和牢度,图文颜色更鲜艳,富有立体感同时还起到防水、防污、耐磨、耐折、耐化学腐蚀等作用。但薄膜不是 100% 透明,影响色彩。

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第二章 覆 膜

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1-2-3-


  • 100%


    • 60%-70%





3.

5.

2.

1.

6.

4.



    • 60%-70%

    • 18-23



    • 60-8010-18MPa







  • (BOPP)

    • 8595

    • 1015MPa

    • 8-12m/s




    • /







    • 6-20h



    • 48


    • ()


    • NCO


    • 99.5%



















  • (BOPP)

  • (PP)

  • (PVC)

  • (PET)

  • (CA)


    • 0.010.02mm

    • 0.04N/m(40dyn/cm2)

    • 90%


    • ()




  • .

    • dyn





  • GB225g/m^20.1mm225g/m^20.1mm


    • 457nmMgO



    • 6.5%-7.5%

    • 202h









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