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Drawing and writing paperboard

A technology for painting and cardboard, which is applied in papermaking, paper coating, textiles and papermaking, etc. It can solve the problems of impermeability to wet rubbing, easy color change, color difference and powder removal, etc., and achieve strong color fixation of finished products, economical and convenient, Wide range of effects

Inactive Publication Date: 2010-02-03
刘金亮 +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] In the prior art, the method of coating is used to change the hardness and friction coefficient of the paper surface, so as to achieve the purpose of repeatedly erasing and writing with stone pens, chalks and erasers. According to retrieval, there is Chinese patent ZL01133654.4 (a kind of coated paper) , which discloses that an "organic coating containing mineral powder of silicon element" is directly coated on the base paper, with plant fiber paper as the base material, rather than the surface of the post-press paper as the base material. Practice has shown that, Because the color graphics on the surface of this paper are printed on the surface, it is prone to color change, color difference and powder removal, and it is not resistant to wet rubbing and other problems.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0013] Embodiment 1: Coating substrate---the surface is printed with 120g / m of color picture and text Double offset paper; Coating material---it is easy to remove transparent PVC resin and 1000 mesh silica powder, wherein silica powder and PVC The content ratio of the resin is 0.4:1, and it is fully blended and stirred; Coating——Using a screen scraping method, after coating evenly, it can be cured at room temperature.

Embodiment 2

[0014] Embodiment 2: Coating substrate--the surface is printed with 210g / m2 coated paper with color pictures and texts; The content ratio of powder and UV resin is 0.5:1, and it is made by blending and fully stirring and dispersing; Coating - use a roller coater and an ultraviolet light source device to coat and cure.

Embodiment 3

[0015] Embodiment 3: Coating substrate---the surface is printed with 300g / m white board paper with colored pictures and texts, coating material---water-soluble alkyd resin varnish plus particle size is the silicon dioxide powder of 1200 objects, wherein silicon dioxide powder The ratio of resin content to water-soluble alkyd resin varnish is 0.3:1, and it is fully blended and stirred to disperse; coating——by roller coating and drying.

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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PUM

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Abstract

The invention relates to a post-printing process for paper printing, particularly a method for forming a coating on the surface of paper after printing. The technical proposal is that the method comprises using a piece of paper with colored patterns as substrate, printing and coating an organic paint containing silicon dioxide powder on the surface of paper. The coating has high transparency and moderate roughness and serves as a sub-gloss surface. The invention has the advantages of easily-accessible raw material, good color fastness of final products, no stripping and fading, application aswriting tool, suitability for dry or wet cleaning, and uniformity of writing effect. The paper is widely used in teaching, business and advertisement with low cost and good convenience.

Description

technical field [0001] The invention relates to a post-press processing technology of printed paper, in particular to a method for recoating the surface of printed paper. Background technique [0002] In the prior art, the method of coating is used to change the hardness and friction coefficient of the paper surface, so as to achieve the purpose of repeatedly erasing and writing with stone pens, chalks and erasers. According to retrieval, there is Chinese patent ZL01133654.4 (a kind of coated paper) , which discloses that an "organic coating containing mineral powder of silicon element" is directly coated on the base paper, with plant fiber paper as the base material, rather than the surface of the post-press paper as the base material. Practice has shown that, Because the color graphics on the surface of this paper are printed on the surface, it is prone to color change, color difference and powder removal, and it is not resistant to wet rubbing. Contents of the invention...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D21H19/10
Inventor 刘金亮
Owner 刘金亮
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