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

A water-based polyurethane and production process technology, applied in the field of painting supplies, can solve the problems of hardening and loss, and achieve the effect of soft and dense coating, eliminating elasticity, and not easy to crack the coating

Inactive Publication Date: 2009-10-21
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, 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 was u...

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Abstract

The invention relates to a water-based polyurethane emulsion compound coated art oil canvas and a production process thereof, belonging to the technical field of painting supplies. It is characterized in that hydroxypropyl cellulose is swollen with half of the formula amount of pure water, heated, stirred and dissolved; mixed with water-based polyurethane emulsion, styrene-acrylate copolymer emulsion, glycerin, ethanol, sodium benzoate and stirred evenly to form a gel; The powder and titanium dioxide are wetted with the remaining amount of purified water in the formula, mixed with the above glue, stirred evenly at room temperature to form a coating slurry; then coated with three to five layers of the coating slurry on the base cloth, dried and dried as finished product. The invention obviously increases the softness, abrasion resistance, impact resistance and weather resistance of the product. And it has the elasticity similar to the skin film and eliminates the adhesion phenomenon of the surface layer of the coating, making the product coating soft and dense, not easy to crack and peel off the coating, preventing the diffusion and back seepage of oil paint during painting, and optimizing the performance of the product and shelf status.

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 Patents(China)
IPC IPC(8): D06N3/00B05D1/38B05D3/02C09D101/00C09D125/00C09D175/04
Inventor 宋健
Owner 宋健
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