Improved canvas with butyl acetate-polyvinyl copolymer emusion compound white coating and its production process

A technology of polyvinyl alcohol and butyl acetate, which is applied in the painting field of painters and artists, can solve the problems of affecting product performance and shelf life, unsatisfactory coating film compactness, easy yellowing of white coating, etc., and achieves no color migration , good color and wide application

Inactive Publication Date: 2008-02-13
宋健 +2
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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 embodiment of the present invention compounding the white coating improved oil canvas are as follows:

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

[0033](1), base coat material: get styrene-acrylic acid ester copolymer emulsion: 18%, butyl acetate-polyvinyl alcohol copolymer emulsion: 20%, titanium dioxide: 8%, lithopone: 12%, calcium carbonate: 18%, talcum powder: 7%, ethanol: 0.3%, sodium hexametaphosphate: 0.02%, sodium polyacrylate: 0.01%, sodium benzoate: 0.05%, hydroxypropyl Cellulose: 0.15%, glycerin: 0.1%, emulsifying wax: 0.15%, water: 16.22%; take half of the total amount of water used for hydroxypropyl cellulose and fully swell it, heat it to 75°C, add emulsifying wax and mix well Add styrene-acrylic ester copolymer emulsion, butyl acetate-polyvinyl alcohol copolymer emulsion; titanium dioxide (titanium dioxide), lithopone...

Embodiment 2

[0041] The production process steps of the butyl acetate-polyvinyl alcohol copolymer emulsion of the embodiment of the present invention compounding the white coating improved oil canvas are as follows:

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

[0043] (1), base coat material: take styrene-acrylic ester copolymer emulsion: 14%, butyl acetate-polyvinyl alcohol copolymer emulsion: 25%, titanium dioxide: 10%, lithopone: 10%, calcium carbonate: 15%, talcum powder: 10%, ethanol: 0.2%, sodium hexametaphosphate: 0.01%, sodium polyacrylate: 0.02%, sodium benzoate: 0.1%, hydroxypropyl Cellulose: 0.1%, glycerin: 0.2%, emulsifying wax: 0.1%, water: 15.17%; take half of the total amount of water used for hydroxypropyl cellulose and fully swell it, heat it to 80°C, add emulsifying wax and mix well Add styrene-acrylic ester copolymer emulsion, butyl acetate-polyvinyl alcohol copolymer emulsion; titanium dioxide (titanium dioxide), lithopone, ca...

Embodiment 3

[0051] The production process steps of the butyl acetate-polyvinyl alcohol copolymer emulsion of the embodiment of the present invention compounding the white coating improved oil canvas are as follows:

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

[0053] (1), base coat material: get styrene-acrylic ester copolymer emulsion: 16%, butyl acetate-polyvinyl alcohol copolymer emulsion: 24%, titanium dioxide: 10%, lithopone: 8%, calcium carbonate: 18%, talc: 5%, ethanol: 0.25%, sodium hexametaphosphate: 0.03%, sodium polyacrylate: 0.01%, sodium benzoate: 0.15%, hydroxypropyl Cellulose: 0.2%, glycerin: 0.15%, emulsifying wax: 0.2%, water: 18.01%; take half of the total amount of water used for hydroxypropyl cellulose and heat it to 85°C, add emulsifying wax and mix Uniform; add styrene-acrylic ester copolymer emulsion, butyl acetate polyvinyl alcohol copolymer emulsion; titanium dioxide (titanium dioxide), lithopone, calcium carbonate, talc...

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Abstract

The invention relates to a butyl acetate-polyvinyl alcohol copolymer emulsion compound white coating layer improved canvas and the producing technology. It uses butyl acetate-polyvinyl alcohol copolymer emulsion, cinnamene-acrylate copolymer or pure acrylate copolymer, hydroxypropyl cellulose and water as main raw material to make bottom, middle and covering coating material. Coating bottom layer on the bottom canvas, drying; coating middle coating layers, drying; coating covering layers, drying; and the product would be gain. The invention improves the softness, compactness and mechanical strength of the coating film, and would not cause loose by the alteration of temperature and humidity.

Description

technical field [0001] The invention relates to an improved oil painting cloth compounded with butyl acetate-polyvinyl alcohol copolymer emulsion and a white coating and its production process. Specifically, it is used for painting by painters, suitable for oil painting, acrylic painting, and gouache painting, and can also be used for Decoration and decoration belong 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...

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 宋健
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