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Water polyurethane latex composite compounding coat art canvas and producing technique thereof

A water-based polyurethane, production technology, applied in the field of painting supplies, can solve the problems of loss, hardening, etc., achieve the effect of eliminating elasticity, soft and dense coating, and increasing softness

Inactive Publication Date: 2008-07-09
宋健
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the plasticizer in the product coating will escape during shelf placement and lose its original softness and harden
In addition, many countries gradually restrict the use of plasticizers, a toxic chemical

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Embodiment one: the production process of the water-based polyurethane emulsion composite coating art canvas of the present invention adopts the following process steps: its composition formula is in parts by mass:

[0034] 1. Preparation of coating slurry:

[0035] Take 0.5 parts of hydroxypropyl cellulose and fully swell with 6 parts of pure water (12 parts of pure water in total) for 7 hours, then heat to 90°C and stir until completely dissolved, and mix with 10 parts of water-based polyurethane emulsion (APU), styrene-acrylate 30 parts of copolymer emulsion, 0.15 parts of glycerin, 0.2 parts of ethanol, and 0.25 parts of sodium benzoate were mixed and stirred evenly to form a glue; take 35 parts of lithopone, 12 parts of titanium dioxide and wet them with the remaining 6 parts of pure water, then add them to the above glue, Stir and mix evenly to form a coating slurry for later use.

[0036] During the above ingredients, a high-speed mixer was used to mix the mater...

Embodiment 2

[0040] Embodiment two: the production process of the water-based polyurethane emulsion composite coating art canvas of the present invention adopts the following process steps: its composition formula is in parts by mass:

[0041] 1. Preparation of coating slurry:

[0042] Take 0.4 parts of hydroxypropyl cellulose and fully swell with 6.5 parts of pure water (13 parts of pure water in total) for 8 hours, heat to 85°C and stir until completely dissolved, and mix with 12 parts of water-based polyurethane emulsion (APU), styrene-acrylate 28 parts of copolymer emulsion, 0.2 parts of glycerin, 0.25 parts of ethanol, and 0.3 parts of sodium benzoate were mixed and stirred evenly to form a glue; take 38 parts of lithopone, 10 parts of titanium dioxide and wet them with the remaining 6.5 parts of pure water, then add them to the above glue, Stir and mix evenly to form a coating slurry for later use.

[0043] For the above ingredients, use a high-speed mixer to mix the materials evenl...

Embodiment 3

[0047]Embodiment three: the production process of the water-based polyurethane emulsion compound coating art canvas of the present invention adopts the following process steps: its composition formula is measured in parts by mass:

[0048] 1. Preparation of coating slurry:

[0049] Take 0.5 parts of hydroxypropyl cellulose and fully swell with 7 parts of pure water (14 parts of pure water in total) for 7.5 hours, then heat to 95°C and stir until completely dissolved, and mix with 15 parts of water-based polyurethane emulsion (APU), styrene-acrylate 32 parts of copolymer emulsion, 0.25 parts of glycerin, 0.3 parts of ethanol, and 0.25 parts of sodium benzoate are mixed and stirred evenly to form a glue; take 40 parts of lithopone, 9 parts of titanium dioxide and add them to the above glue after wetting with the remaining 7 parts of pure water. Stir and mix evenly at room temperature to form a coating slurry for later use.

[0050] During the above batching, a high-speed mixer ...

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Abstract

The invention relates to a water-based polyurethane emulsion compounded coating art canvas and a manufacturing technique, which belongs to the technical field of painting articles. The invention is characterized in that the process for manufacturing comprises getting hydroxypropyl cellulose to swell, heat up, stir and dissolve with half purified water of the formula ratio, and mixing and evenly stirring water-based polyurethane emulsion, styrene monomer- acrylate copolymer emulsion, glycerin, alcohol and sodium benzoate, getting lithopone powder and titania to mix with the upper glue solution after wetting with the residual water of the formula ratio, evenly stirring to be coating slurry in normal temperature, and then applying three to five layers of coating slurry on primary backing, drying and baking to be end products. The invention obviously increases suppleness, abradability, impact endurance test resistance and weatherability of products. The invention has elasticity which is similar to epithelial membrane, which eliminates the phenomenon of adhering of the skin layer of coating, and the coating of product is led to be flexible, fine and close, jackknifing and peeling of coating is not easy happen, diffusion and back infiltration of oil painting are avoided when in painting, and the invention optimizes the employment property and goods shelf state of products.

Description

technical field [0001] The invention relates to a water-based polyurethane emulsion compound coated art oil canvas and a production process thereof, in particular to be used for painting by painting artists and lovers. The utility model is suitable for oil painting, acrylic painting and gouache painting, and belongs to the technical field of painting supplies. Background technique [0002] In the prior art, the artist's painting usually adopts to be coated with more than 3 layers of white coating materials on the base substrate and dry to make art oil canvas. The white coating material is made of polymer solution or emulsion, such as polyvinyl alcohol, ethylene acetic acid homopolymer emulsion, polyacrylate copolymer emulsion, one-component or two-component or more emulsion compound, as the coating gum base, add a large amount Fillers such as titanium dioxide, lithopone, talcum powder, calcium carbonate, zinc oxide, etc. are mixed. Then apply the coating material to the ba...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06N3/00B05D1/38B05D3/02C09D101/00C09D125/00C09D175/04
Inventor 宋健
Owner 宋健
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