Stoving varnish writing board and preparing method for stoving varnish writing board

A technology of writing board and baking varnish, which is applied in the field of teaching equipment, can solve the problems of physical and mental health threats to teachers and students, excessive dust, and short life, and achieve the effects of reducing eye damage, low gloss, and high hardness

Active Publication Date: 2014-11-12
SHIJIAZHUANG KEDA STATIONERY
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] More than 90% of the teachers in the school are still using writing boards. The writing boards have evolved from cement writing boards, wooden writing boards, frosted glass writing boards, and metal writing boards. Now the metal writing boards on the market generally h...

Method used

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  • Stoving varnish writing board and preparing method for stoving varnish writing board
  • Stoving varnish writing board and preparing method for stoving varnish writing board
  • Stoving varnish writing board and preparing method for stoving varnish writing board

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0054] A lacquered writing board, see figure 1 As shown, it includes a substrate 2, and the upper surface of the substrate 2 is sequentially provided with a passivation layer 3, a baking paint layer 4 and an impermeable layer 5.

[0055]The material of the impermeable layer 5 is acrylic resin. The material of the baking paint layer 4 is baking paint, and the baking paint is composed of the following raw materials by mass percentage: acrylic resin 30%, dispersant 1%, coloring pigment 2%, anti-settling agent 8%, water 22%, urea-melamine-formaldehyde resin 13% %, catalyst 1%, wear-resistant filler 16%, matting agent 2%, auxiliary agent 5%, made by mixing, grinding and filtering. Among them, the dispersant is PAA-402 dispersant; the anti-settling agent is FP-88 anti-settling agent; the coloring pigment is dark green coloring pigment; the matting agent is white carbon black; the wear-resistant filler is a mixture of ceramic powder and graphite powder, wherein The mass ratio of ce...

Embodiment 2

[0065] A lacquered writing board, see figure 2 As shown, it includes a substrate 2, and the upper surface of the substrate 2 is sequentially provided with a passivation layer 3, a baking paint layer 4, an impermeable layer 5 and a coating layer 6.

[0066] The material of the impermeable layer 5 is acrylic resin. The material of the baking paint layer 4 is baking paint, and the baking paint is composed of the following raw materials by mass percentage: acrylic resin 34%, dispersant 0.5%, color pigment 1.5%, anti-settling agent 8%, water 24%, urea-melamine-formaldehyde resin 10% %, catalyst 1%, wear-resistant filler 14%, matting agent 2%, auxiliary agent 5%, made by mixing, grinding and filtering. Among them, the dispersant is PAA-402 dispersant; the anti-settling agent is FP-88 anti-settling agent; the coloring pigment is dark green coloring pigment; the matting agent is white carbon black; the wear-resistant filler is a mixture of ceramic powder and graphite powder, wherein...

Embodiment 3

[0077] A lacquered writing board, see image 3 As shown, it includes a substrate 2, the upper surface of the substrate 2 is provided with a passivation layer 3, a baking paint layer 4 and an impermeable layer 5 in sequence; the backside of the substrate 2 is provided with a back paint layer 1.

[0078] The material of the impermeable layer 5 is acrylic resin. The material of the baking paint layer 4 is baking paint, and the baking paint is composed of the following raw materials by mass percentage: acrylic resin 35%, dispersant 0.5%, color pigment 1.5%, anti-settling agent 10%, water 22%, urea-melamine-formaldehyde resin 10% %, catalyst 1.5%, wear-resistant filler 11%, matting agent 2.5%, auxiliary agent 6%, made by mixing, grinding and filtering. Among them, the dispersant is PAA-402 dispersant; the anti-settling agent is FP-88 anti-settling agent; the coloring pigment is dark green coloring pigment; the matting agent is white carbon black; the wear-resistant filler is a mix...

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Abstract

The invention discloses a stoving varnish writing board and a preparing method for the stoving varnish writing board, and relates to the technical field of teaching tools. The stoving varnish writing board comprises a substrate, the upper surface of the substrate is sequentially provided with a passivation layer and a stoving varnish layer, the upper surface of the stoving varnish layer is provided with an impervious layer, the stoving varnish layer is made of stoving varnish, and the stoving varnish is formed by mixing, grinding and filtering, by mass, 30-40% of acrylic resin, 0.5-1% of dispersing agents, 1.5-3% of coloring pigments, 8-15% of anti-settling agents, 20-32% of water, 10-15% of urea, melamine and formaldehyde resin, 1-2% of catalysts, 10-18% of wear-resistant filler, 2-5% of flatting agents and 5-10% of auxiliaries. The stoving varnish writing board has the advantages that hardness is high, glossiness is low, the surface of the stoving varnish writing board is uniform, coarseness is moderate and character strokes can be prevented from permeating the writing board, chalk and fountain pens can be used for writing, vision of teachers and students can be effectively protected, the service life of the writing board is prolonged, the preparation process is good and environment protection is achieved.

Description

technical field [0001] The present invention relates to the technical field of teaching appliances. Background technique [0002] At present, more than 90% of teachers in schools are still using writing boards. The writing boards have evolved from cement writing boards, wooden writing boards, frosted glass writing boards, and metal writing boards. The metal writing boards on the market generally have quality problems, including raw materials. Rust, paint peeling, discoloration, dust, reflection, short life, etc.; some need to be replaced after one year of use; and the use of low-quality writing boards will pose a threat to the physical and mental health of teachers and students. SUMMARY OF THE INVENTION [0003] The technical problem to be solved by the present invention is to provide a baking varnish writing board and a preparation method thereof. The baking varnish board has the characteristics of high hardness, low gloss, uniform surface, moderate roughness, easy prepar...

Claims

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Application Information

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IPC IPC(8): B43L1/00C09D133/00C09D161/28C09D7/12
Inventor 何玉良
Owner SHIJIAZHUANG KEDA STATIONERY
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