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KR-20260063824-A - Eco-friendly water-based paint composition

KR20260063824AKR 20260063824 AKR20260063824 AKR 20260063824AKR-20260063824-A

Abstract

The present invention relates to an eco-friendly water-based paint composition comprising 20 to 50 weight% of an acrylic binder, 20 to 35 weight% of diatomaceous earth, 3 to 20 weight% of a functional substance, 5 to 25 weight% of a water-based additive, 10 to 25 weight% of a pigment, 20 to 35 weight% of diatomaceous earth, 0.1 to 1.0 weight% of an antibacterial agent, 0.1 to 10 weight% of a harmful substance remover, and the remainder being water.

Inventors

  • 김진영
  • 선다해

Assignees

  • 한진케미칼 주식회사

Dates

Publication Date
20260507
Application Date
20241031

Claims (5)

  1. An eco-friendly water-based paint composition comprising 20 to 50 wt% acrylic binder, 20 to 35 wt% diatomaceous earth, 3 to 20 wt% functional material, 5 to 25 wt% water-based additive, 10 to 25 wt% pigment, 20 to 35 wt% diatomaceous earth, 0.1 to 1.0 wt% antibacterial agent, 0.1 to 10 wt% harmful substance remover, and the remainder being water.
  2. In claim 1, An eco-friendly water-based paint composition in which the above-mentioned water-based additive is an additive formed solely of inorganic materials, and the additive comprises one or more of an antibacterial agent, an antifungal agent, a dispersant, a thickener, an antifoaming agent, and a pH adjuster.
  3. In claim 1, An eco-friendly water-based paint composition characterized in that the above functional material is one or more selected from the group consisting of illite, zeolite, maifan stone, jade, red clay, calcium carbonate, and cinnamon.
  4. In claim 1, An eco-friendly water-based paint composition characterized by containing 0.1 to 5 weight% of urea, 0.1 to 2 weight% of adipic acid dihydrazide, and 0.1 to 1 weight% of a photocatalyst based on the total weight of the paint composition as the harmful substance remover.
  5. In claim 1, An eco-friendly water-based paint composition characterized in that the above acrylic binder is a water-dispersible acrylic ester copolymer having a viscosity of 3,000 to 4,000 cps (25℃).

Description

Eco-friendly water-based paint composition The present invention relates to an eco-friendly water-based paint composition. Generally, interior and finishing materials made of chemical products used as building materials include styrofoam, asbestos, and urethane foam, and are bonded and attached using adhesives. In addition, they are finished using coatings such as lacquer and paint, which generate a large amount of harmful gases such as formalin that are harmful to the human body, causing sick building syndrome which leads to atopic dermatitis, allergic rhinitis, headaches, and respiratory diseases. Volatile organic compounds, which are identified as a cause of indoor environmental pollution within buildings and triggers sick building syndrome, asthma, and atopic diseases, are released from household items that use adhesives, such as wall paint, wallpaper, flooring, sofas, and furniture. Among volatile organic compounds, formaldehyde is emitted from building materials such as insulation, furniture adhesives, and paints; in particular, paint is recognized as a major culprit of indoor environmental pollution because it is composed of various organic compounds and is highly volatile. Hereinafter, an eco-friendly water-based paint composition according to an embodiment of the present invention will be described in detail with reference to the attached drawings. The eco-friendly water-based paint composition according to the example consists of 20 to 50 wt% acrylic binder, 20 to 35 wt% diatomaceous earth, 3 to 20 wt% functional material, 5 to 25 wt% water-based additive, 10 to 25 wt% pigment, 20 to 35 wt% diatomaceous earth, 0.1 to 1.0 wt% antibacterial agent, 0.1 to 10 wt% harmful substance remover, and the remainder being water. The acrylic binder may be a water-soluble acrylic binder, preferably a water-dispersible acrylic ester copolymer (solid content 47-49% by weight). The acrylic binder may have a viscosity of 3,000 to 4,000 cps (at 25°C). Acrylic binders have a very low content of volatile organic compounds, so they emit almost no harmful substances and are nearly odorless. It is preferable that such a binder be present in an amount of 20 to 50 weight percent relative to the total weight of the paint composition. If the amount is less than 20 weight percent, the viscosity is low, resulting in low adhesion during application, and if the amount exceeds 50 weight percent, the viscosity is excessively high, leading to reduced workability. The functional material may be one or more selected from the group consisting of illite, zeolite, maifan stone, jade, red clay, calcium carbonate, and cinnamon. The functional material may be included in an amount of 3 to 20 weight percent relative to the total weight of the paint composition. If the functional material is less than 3 weight percent, it is difficult to exhibit the desired function, and if it exceeds 20 weight percent, it affects the viscosity of the paint itself, thereby reducing workability. Water-based additives are intended to improve the physical properties of the paint, such as antibacterial, antifungal, dispersible, antifoaming, leveling, and washability, and may use one or more of antibacterial agents, antifungal agents, dispersants, thickeners, antifoaming agents, and pH adjusters. The pigment may be a pigment commonly used in paint compositions. Preferably, titanium may be used. The pigment may be included in an amount of 10 to 25 weight percent relative to the total weight of the paint composition. It is preferable that diatomaceous earth be included in an amount of 20 to 35 weight percent relative to the total weight of the paint composition. Diatomaceous earth imparts adsorption performance for harmful substances and deodorization performance, and improves moisture absorption and release. If the amount of diatomaceous earth is less than 20 weight percent, the adsorption and deodorization performance are low, and if it exceeds 35 weight percent, the adhesion performance with the wall surface may be reduced. Any antimicrobial agent commonly used in paint compositions may be used without special restrictions. Preferably, the antimicrobial agent may be used in an amount of 0.1 to 10 weight percent relative to the total weight of the paint composition. The hazardous substance remover may be a composition comprising urea, adipic acid dihydrazide, and a photocatalyst. The hazardous substance remover may be included in an amount of 0.1 to 10 weight percent relative to the total weight of the paint composition. If the hazardous substance remover is included in an amount less than 0.1 weight percent, it is difficult to remove volatile organic chemicals, and if it exceeds 10 weight percent, the manufacturing cost increases. More preferably, the hazardous substance remover is preferably 0.1 to 5 weight percent urea, 0.1 to 2 weight percent adipic acid dihydrazide, and 0.1 to 1 weight percent photocatalyst. By using a hazardous substance removal agent with s