Sandiness drawing material and its making method

Sandiness drawing material and its making method

CN
  • CN 101,007,488 A
  • Filed: 02/01/2007
  • Published: 08/01/2007
  • Est. Priority Date: 02/01/2007
  • Status: Active Application
First Claim
Patent Images

1. , the preparation method of Sandiness drawing material is characterized in that:

  • adopt following processing step;

    1) scribbles glue (2) on the top layer with end liner (1);

    2) scribble on the end liner (1) of glue (2) and spread sand (3), the granularity of sand (3) is 100 orders-250 orders;

    3) roll;

    4) oven dry, temperature;

    100 ℃

    -300 ℃

    ;

    5) will dry on good sand (3) top layer and be coated with one deck glue (4) again;

    6) secondary drying, temperature;

    100 ℃

    -300 ℃

    .

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