Anti-bleeding water-borne wood coating structure and application thereof

Abstract

The invention relates to the technical field of woodware coating structures, and discloses an anti-bleeding water-based woodware coating structure. The structure comprises a closed coating, a polishing coating and a finish paint coating; raw materials of the sealing coating comprise a main agent I and a curing agent; the main agent I comprises a high-hydroxyl-value acrylic acid dispersion, a coalescing agent, a wetting agent, a defoaming agent, a thickening agent and deionized water; the polishing coating is prepared from the following raw materials: a main agent II and a curing agent; the main agent II comprises a water-based acrylic emulsion, an antifoaming agent, a coalescing agent, a dispersing agent, a leveling agent, a mildew preventive, a thickener and deionized water; the finish paint coating is prepared from the following raw materials: a main agent III and a curing agent; and the main agent III comprises a water-based acrylic emulsion, an antifoaming agent, a coalescing agent, a dispersing agent, a leveling agent, a mildew preventive, a thickener and deionized water. The invention further discloses application of the water-based woodware coating structure. The water-based woodware coating structure has the advantages of color seepage prevention, high adhesive force, high hardness, high stain resistance, low water permeability and the like.

Description

technical field

[0001] The invention relates to the technical field of wood coating structures, in particular to an anti-bleeding water-based wood coating structure and its application. Background technique

[0002] Water-based wood coatings use water as the dispersion medium and are healthy and environmentally friendly, so they have attracted much attention in recent years. The wooden substrate contains colored substances, and pine scars contain tannic acid. Since the molecules of colored substances and tannic acid contain a large number of hydroxyl groups, they are easily soluble in water, ethanol and glycerin, etc., so they are hydrophilic. However, water-based wood coatings use water as the dispersion medium, which makes the above-mentioned colored substances or tannic acid quickly dissolve into the water when the water-based wood coating is applied to the surface of a wooden substrate, resulting in discoloration and adhesion of the coating. Variation and other problems...

Examples

Embodiment 1

[0032] 1. A water-based wood coating structure for anti-bleeding, comprising a seal coat, a sanding coat and a finish coat;

[0033] The raw materials of the seal coat include the main agent I and the curing agent in a weight ratio of 100:10; by weight, the main agent I includes 65 parts of high-hydroxyl value acrylic dispersion, 4 parts of film-forming aids, and 0.4 parts of wetting agent , 0.2 parts of defoaming agent, 5 parts of thickener and 15 parts of deionized water; in the curing agent, the molar ratio of isocyanate group to hydroxyl group is 1:1;

[0034] The raw materials of the grinding coating include main agent II and curing agent in a weight ratio of 100:10; in parts by weight, main agent II includes 80 parts of water-based acrylic emulsion, 0.3 part of defoamer, 2 parts of film-forming aid, dispersant 0.3 parts, 0.1 parts of leveling agent, 0.1 parts of antifungal agent, 0.8 parts of thickener and 4 parts of deionized water; in the curing agent, the molar ratio ...

Embodiment 2

[0043] 1. A water-based wood coating structure for anti-bleeding, comprising a seal coat, a sanding coat and a finish coat;

[0044] The raw materials of the seal coat include main agent I and curing agent with a weight ratio of 100:15; in parts by weight, main agent I includes 75 parts of high-hydroxyl value acrylic dispersion, 5 parts of film-forming aid, and 0.5 part of wetting agent , 0.3 parts of defoamer, 7 parts of thickener and 30 parts of deionized water; in the curing agent, the molar ratio of isocyanate group to hydroxyl group is 1:1;

[0045] The raw materials of the grinding coating include main agent II and curing agent with a weight ratio of 100:15; in parts by weight, main agent II includes 85 parts of water-based acrylic emulsion, 0.6 part of defoamer, 5 parts of film-forming aid, dispersant 0.6 parts, 0.3 parts of leveling agent, 0.3 parts of fungicide, 1.0 parts of thickener and 6 parts of deionized water; in the curing agent, the molar ratio of isocyanate g...

Embodiment 3

[0054] 1. A water-based wood coating structure for anti-bleeding, comprising a seal coat, a sanding coat and a finish coat;

[0055] The raw materials of the seal coat include the main agent I and the curing agent with a weight ratio of 100:12; by weight, the main agent I includes 70 parts of high-hydroxyl value acrylic dispersion, 4.5 parts of film-forming aids, and 0.4 parts of wetting agent , 0.2 parts of defoamer, 6 parts of thickener and 20 parts of deionized water; in the curing agent, the molar ratio of isocyanate group to hydroxyl group is 1:1;

[0056] The raw materials of the grinding coating include main agent II and curing agent with a weight ratio of 100:12; in parts by weight, main agent II includes 82 parts of water-based acrylic emulsion, 0.5 part of defoamer, 4 parts of film-forming aid, dispersant 0.5 parts, 0.2 parts of leveling agent, 0.2 parts of antifungal agent, 1.0 parts of thickener and 5 parts of deionized water; in the curing agent, the molar ratio o...

technical field

[0001] The invention relates to the technical field of wood coating structures, in particular to an anti-bleeding water-based wood coating structure and its application. Background technique

[0002] Water-based wood coatings use water as the dispersion medium and are healthy and environmentally friendly, so they have attracted much attention in recent years. The wooden substrate contains colored substances, and pine scars contain tannic acid. Since the molecules of colored substances and tannic acid contain a large number of hydroxyl groups, they are easily soluble in water, ethanol and glycerin, etc., so they are hydrophilic. However, water-based wood coatings use water as the dispersion medium, which makes the above-mentioned colored substances or tannic acid quickly dissolve into the water when the water-based wood coating is applied to the surface of a wooden substrate, resulting in discoloration and adhesion of the coating. Variation and other problems...

Examples

Embodiment 1

[0032] 1. A water-based wood coating structure for anti-bleeding, comprising a seal coat, a sanding coat and a finish coat;

[0033] The raw materials of the seal coat include the main agent I and the curing agent in a weight ratio of 100:10; by weight, the main agent I includes 65 parts of high-hydroxyl value acrylic dispersion, 4 parts of film-forming aids, and 0.4 parts of wetting agent , 0.2 parts of defoaming agent, 5 parts of thickener and 15 parts of deionized water; in the curing agent, the molar ratio of isocyanate group to hydroxyl group is 1:1;

[0034] The raw materials of the grinding coating include main agent II and curing agent in a weight ratio of 100:10; in parts by weight, main agent II includes 80 parts of water-based acrylic emulsion, 0.3 part of defoamer, 2 parts of film-forming aid, dispersant 0.3 parts, 0.1 parts of leveling agent, 0.1 parts of antifungal agent, 0.8 parts of thickener and 4 parts of deionized water; in the curing agent, the molar ratio ...

Embodiment 2

[0043] 1. A water-based wood coating structure for anti-bleeding, comprising a seal coat, a sanding coat and a finish coat;

[0044] The raw materials of the seal coat include main agent I and curing agent with a weight ratio of 100:15; in parts by weight, main agent I includes 75 parts of high-hydroxyl value acrylic dispersion, 5 parts of film-forming aid, and 0.5 part of wetting agent , 0.3 parts of defoamer, 7 parts of thickener and 30 parts of deionized water; in the curing agent, the molar ratio of isocyanate group to hydroxyl group is 1:1;

[0045] The raw materials of the grinding coating include main agent II and curing agent with a weight ratio of 100:15; in parts by weight, main agent II includes 85 parts of water-based acrylic emulsion, 0.6 part of defoamer, 5 parts of film-forming aid, dispersant 0.6 parts, 0.3 parts of leveling agent, 0.3 parts of fungicide, 1.0 parts of thickener and 6 parts of deionized water; in the curing agent, the molar ratio of isocyanate g...

Embodiment 3

[0054] 1. A water-based wood coating structure for anti-bleeding, comprising a seal coat, a sanding coat and a finish coat;

[0055] The raw materials of the seal coat include the main agent I and the curing agent with a weight ratio of 100:12; by weight, the main agent I includes 70 parts of high-hydroxyl value acrylic dispersion, 4.5 parts of film-forming aids, and 0.4 parts of wetting agent , 0.2 parts of defoamer, 6 parts of thickener and 20 parts of deionized water; in the curing agent, the molar ratio of isocyanate group to hydroxyl group is 1:1;

[0056] The raw materials of the grinding coating include main agent II and curing agent with a weight ratio of 100:12; in parts by weight, main agent II includes 82 parts of water-based acrylic emulsion, 0.5 part of defoamer, 4 parts of film-forming aid, dispersant 0.5 parts, 0.2 parts of leveling agent, 0.2 parts of antifungal agent, 1.0 parts of thickener and 5 parts of deionized water; in the curing agent, the molar ratio o...

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