Dust-free writing liquid for teaching black board

A technology for writing liquid and blackboard, applied in the field of dust-free writing liquid, can solve problems such as complex composition, and achieve the effects of strong erasability, good chemical stability and smooth writing

Inactive Publication Date: 2007-04-11
邵毅军
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] The present invention aims to solve the technical problem that the composition of the above-mentioned blackboard writing liquid is relatively complex except for the pigment components, and discloses a dust-free writing liquid for teaching blackboards with a relatively simple composition.

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0010] In terms of 50g per part by weight, take: 450g of titanium dioxide, 25g of glycerin, 1.25g of leveling agent NP-10, 0.4g of sodium hexametaphosphate, 50g of dioctyl sebacate, 5g of Pingpingjia-15, polyethylene glycol bis Stearate 5g, titanate coupling agent 5g, ammonia water 3.25g, polyoxyethylene alcohol resin 17-88 180g, polyoxyethylene alcohol resin 17-99 (S) 270g, water (deionized water) 1050g for later use.

[0011] First, under the stirring condition of 70-100 rpm, slowly add polyoxyethylene alcohol resin 17-88180g, 17-99(S) 270g into 1050g water at about 20℃ to fully swell and disperse, and then directly heat with water vapor The method is to raise the temperature to 95° C., keep it warm for 2 to 2.5 hours, and then filter impurities through 28-mesh stainless steel to obtain 1500 g of emulsion for later use.

[0012] Mix 450g of pigment titanium dioxide with 25g of active agent glycerin, 1.25g of leveling agent NP-10, 0.4g of diffusing agent sodium hexametaphosph...

Embodiment 2

[0016] In terms of 50g per part by weight, take: 500g of titanium dioxide, 30g of glycerin, 1.4g of leveling agent NP-10, 0.5g of sodium hexametaphosphate, 50g of dioctyl sebacate, 5g of Pingpingjia-15, polyethylene glycol bis Stearate 6g, titanate coupling agent 6g, ammonia water 3.25g, polyoxyethylene alcohol resin 17-88 160g, polyoxyethylene alcohol resin 17-99 (S) 320g, water (deionized water) 1120g for later use.

[0017] First, under the condition of stirring at 70-100 rpm, slowly add 17-88160g and 17-99(S)320g of polyoxyethylene alcohol resin into 1120g of water at about 20°C to fully swell and disperse, and then directly heat with water vapor Raise the temperature to 95° C., keep it warm for 2 to 2.5 hours, and then filter impurities through 28-mesh stainless steel to obtain 1600 g of emulsion for later use.

[0018] Mix 500g of pigment titanium dioxide with 30g of active agent glycerin, 1.4g of leveling agent NP-10, 0.5g of diffusing agent sodium hexametaphosphate, 50...

Embodiment 3

[0022] In terms of 50g per part by weight, take: 600g of titanium dioxide, 31.5g of glycerin, 1.5g of leveling agent NP-10, 0.55g of sodium hexametaphosphate, 62.5g of dioctyl sebacate, 6.25g of Pingpingjia-15, polyethylene Diol distearate 6.25g, titanate coupling agent 6.25g, ammonia 3.5g, polyoxyethylene alcohol resin 17-88 165g, polyoxyethylene alcohol resin 17-99 (S) 330g, water (deionized water) 1155g for subsequent use.

[0023] First, under the condition of stirring at 70-100 rpm, slowly add 17-88165g of polyoxyethylene alcohol resin, 17-99(S)330g of water to 1155g of water at about 20°C to fully swell and disperse, and then directly heat with water vapor Raise the temperature to 95° C., keep it warm for 2 to 2.5 hours, and filter impurities through 28-mesh stainless steel to obtain 1650 g of emulsion for later use.

[0024] Mix 600g of pigment titanium dioxide with 31.5g of active agent glycerin, 1.5g of leveling agent NP-10, 0.55g of diffusing agent sodium hexametaph...

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PUM

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Abstract

The dust-free writing liquid for teaching black board consists of titanium white powder, glycerin, NP-10, sodium hexametaphosphate, dioctyl sebacate, peregal-15, polyglycol distearate, titanate coupler, ammonia water, PVA resin 17-88 and 17-99 (S) emulsion. The present invention has high chemical stability, no bad smell, fluent writing, easy drying, easy erasing out, and other advantages.

Description

technical field [0001] The invention relates to a dust-free writing liquid for teaching blackboards, Background technique [0002] The invention patent application of application number 03119046.4 "Preparation method of blackboard writing liquid" discloses a composition of blackboard writing liquid, including pigment components titanium dioxide, super white powder, molybdenum chrome red, surfactant components glycerol, Propylene glycol, polyethylene glycol, dioctyl sebacate, polyoxyethylene castor oil, polyoxyethylene nonylphenol ether, polyethylene glycol distearate, propylene monomer, polyoxyethylene fatty alcohol ether, spit Wen-20, Tween-80, Span-80 and titanate coupling agent, emulsion stabilizer PVA17-88, 17-99 aqueous solution. The composition of the above-mentioned blackboard writing liquid is relatively complicated except for the pigment components. Contents of the invention [0003] The present invention aims to solve the technical problem that the blackboard w...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C09D11/16
Inventor 邵毅军
Owner 邵毅军
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