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Butyl acetate-polyvinyl alcohol copolymer emulsion color coating canvas and its producing process

A polyvinyl alcohol and butyl acetate technology, applied in the field of painting supplies, can solve the problems of oil absorption, coating cracking, back seepage, etc., and achieve the effects of tight coating film, good light resistance and stable performance

Inactive Publication Date: 2008-02-13
无锡康野传媒有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The defect of this white-coated art canvas is that the compactness of the coating film is not ideal, and back seepage and oil absorption are often prone to occur during painting; because it contains more solid powder without fillers, it is prone to cracking and cracking of the coating and flaking; white coating tends to yellow
These defects affect the performance and shelf life of the product

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] The production process steps of the butyl acetate-polyvinyl alcohol copolymer emulsion of the present invention compounded color coated canvas are as follows:

[0032] 1. Preparation of coating materials for bottom, middle and overcoat coatings:

[0033](1) Undercoat material: take styrene-acrylic ester copolymer emulsion: 15%, butyl acetate-polyvinyl alcohol copolymer emulsion: 28%, pigment paste: 0.06%, titanium dioxide: 4 %, lithopone: 8%, calcium carbonate: 18%, talcum powder: 10%, ethanol: 0.2%, sodium hexametaphosphate: 0.01%, sodium polyacrylate: 0.02%, sodium benzoate: : 0.1%, hydroxypropyl cellulose: 0.18%, glycerin: 0.1%, emulsifying wax: 0.1%, water: 16.23%; take half of the total amount of hydroxypropyl cellulose to fully swell and heat it for 75 ℃, add emulsified wax and mix evenly; add styrene-acrylate copolymer emulsion, butyl acetate-polyvinyl alcohol copolymer emulsion; titanium dioxide (titanium dioxide), lithopone, calcium carbonate, talcum powder an...

Embodiment 2

[0041] The production process steps of the butyl acetate-polyvinyl alcohol copolymer emulsion of the present invention compounded color coated canvas are as follows:

[0042] 1. Preparation of coating materials for bottom, middle and overcoat coatings:

[0043] (1), primer coating material: take styrene-acrylic acid ester copolymer emulsion: 8%, butyl acetate-polyvinyl alcohol copolymer emulsion: 35%, pigment paste: 0.08%, titanium dioxide: : 6%, lithopone: 9%, calcium carbonate: 15%, talcum powder: 11%, ethanol: 0.25%, sodium hexametaphosphate: 0.02%, sodium polyacrylate: 0.01%, benzene Sodium formate: 0.15%, hydroxypropyl cellulose: 0.15%, glycerin: 0.12%, emulsifying wax: 0.12%, water: 15.1%; half of the total amount of water used for hydroxypropyl cellulose is fully swollen Heat at 80°C, add emulsified wax and mix well; add styrene-acrylate copolymer emulsion, butyl acetate-polyvinyl alcohol copolymer emulsion; titanium dioxide (titanium dioxide), lithopone, calcium carbo...

Embodiment 3

[0051] The production process steps of the butyl acetate-polyvinyl alcohol copolymer emulsion of the embodiment of the present invention compounded color coated oil canvas are as follows:

[0052] 1. Preparation of coating materials for bottom, middle and overcoat coatings:

[0053] (1) Undercoat material: take styrene-acrylate copolymer emulsion: 5%, butyl acetate-polyvinyl alcohol copolymer emulsion: 36.5%, pigment paste: 0.1%, titanium dioxide: 5% %, lithopone: 10%, calcium carbonate: 20%, talcum powder: 7%, ethanol: 0.15%, sodium hexametaphosphate: 0.15%, sodium polyacrylate: 0.15%, sodium benzoate: : 0.2%, hydroxypropyl cellulose: 0.12%, glycerin: 0.15%, emulsifying wax: 0.15%, water: 15.33%; take half of the total amount of water used for hydroxypropyl cellulose and fully swell and heat 85 ℃, add emulsified wax and mix evenly; add styrene-acrylate copolymer emulsion, butyl acetate-polyvinyl alcohol copolymer emulsion; titanium dioxide (titanium dioxide), lithopone, calc...

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Abstract

The present invention belongs to the field of drawing article technology, and is especially one kind of artists' canvas with color coating of butyl acetate-vinyl alcohol copolymer and its production process. The artists' canvas producing process includes compounding the coating materials with butyl acetate-vinyl alcohol copolymer as main material, styrene-ethylene copolymer emulsion, pigment slurry, titanium white powder, etc. for the bottom layer, the middle layer and facing layer; painting the bottom coating and stoving; painting 1-3 middle coating and stoving; and painting 1 or 2 facing coating and stoving to obtain the product. The artists' canvas has stable and high strength coating, improved use performance, no oil permeation, and other advantages.

Description

technical field [0001] The present invention relates to a kind of butyl acetate-polyvinyl alcohol copolymer emulsion compound color coated oil painting cloth and its production process, specifically for painting artist painting, suitable for oil painting, acrylic painting, gouache painting, also can be used for decoration , decoration, belonging to the technical field of painting supplies. Background technique [0002] Before the present invention was made, in prior art, artist's painting usually adopts traditional white coated canvas. It is mainly to apply white coating material directly on the base fabric. The white coating material adopts polymer emulsion such as polyvinyl alcohol, ethylene acetic acid homopolymer emulsion, styrene-acrylic ester copolymer emulsion and pure acrylate copolymer emulsion as one-component or two-component emulsion as the coating base. Made with a larger quantity of fillings mixed. Then apply the coating material on the base cloth to make ar...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06N3/08B44D2/00
Inventor 宋健宋奇宋磊
Owner 无锡康野传媒有限公司
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