KR-102965362-B1 - Nano lacquer method of craftwork and nano lacquer craftwork manufactured by it

Abstract

The present invention relates to a nano-lacquer method for crafts and a nano-lacquer craft product manufactured thereby. More specifically, the invention relates to an improved nano-lacquer method for crafts and a nano-lacquer craft product manufactured thereby, which prevents deformation such as warping or cracking of the craft product by preventing moisture penetration while maintaining the natural texture of the wood by lacquering the surface of the wood constituting the craft product to increase the glossiness of the color, transparency, and strength of the lacquer layer.

Inventors

• 석희숙

Dates

Publication Date

20260513

Application Date

20230330

Claims (5)

1. A method for nano-lacquering a craft product, comprising: a craft product manufacturing stage; a curved lacquer application stage in which the surface of a decorative element constituting the manufactured craft product is inspected to find and fill or correct defects or impurities; a wood grain filling stage in which the wood grain is filled with mortar to reduce the unevenness of the wood grain after the curved lacquer is applied; a cloth application stage in which glue is applied to the surface where the wood grain is filled to form a glued surface, and plain cotton or fine cotton is attached to this glued surface; a sanding polishing stage in which the surface is smoothed with sandpaper after the cloth application stage; a middle lacquer application stage in which middle lacquer liquid is applied to the smooth surface processed with sandpaper; a middle lacquer surface polishing stage in which the middle lacquer surface is polished with a polishing cloth soaked in a polishing liquid; a design stage in which a design or picture/character is expressed on the polished middle lacquer surface; a top lacquer application stage in which the designed surface is lacquered with top lacquer liquid; and a finishing stage in which the top lacquer surface is polished with a cotton cloth soaked in clay oil after the top lacquer application to produce a gloss. The above-mentioned medium-stretching solution comprises, based on 100 parts by weight of purified liquid, 5 parts by weight of glycidyl neodecanoate, 5 parts by weight of 2-hydroxyethyl methacrylic acid (2-HEMA), 10 parts by weight of nonylphenol ethoxylated, 5 parts by weight of a mixture of MgO, MgCl₂ and acetic acid, 5 parts by weight of polyoxyethylene, 5 parts by weight of ethylene bis stearamide, and 5 parts by weight of urushiol; The above-mentioned enamel solution comprises, based on 100 parts by weight of purified liquid, 20 parts by weight of tin-antimony reaction powder, 10 parts by weight of palmitic acid, 5 parts by weight of sodium benzoate, 3 parts by weight of sodium pyrophosphate anhydrous, and 4.5 parts by weight of kaolin; The grout used in the above wood grain filling step is prepared by adding 5 parts by weight of red clay, 10 parts by weight of roof tile powder, 5 parts by weight of methyl salicylate, 5 parts by weight of boron nitride, 5 parts by weight of dihydroxybutanoic acid, and 3 parts by weight of sodium bicarbonate to 100 parts by weight of raw lacquer liquid; A nano-lacquer method for a craft product, characterized in that the paste forming the paste surface in the above-mentioned pasting step is a mixture prepared by adding 50 parts by weight of rice paste, 5 parts by weight of polyvinyl acetate, 5 parts by weight of glutaryl concentrate, 3 parts by weight of anhydrous dichloromethane, 3 parts by weight of antimony pentoxide, and 5 parts by weight of wood vinegar to 100 parts by weight of raw lacquer liquid.
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3. In paragraph 1, A method for nano-lacquering of a craft product, characterized by preparing a tin-antimony reaction powder constituting the above-mentioned lacquer solution by mixing 30% by weight of distilled water and 30% by weight of 1,4-butanediol, adding sodium hydroxide (NaOH) to adjust the pH to 11, adding 37% by weight of tin tetrachloride ( SnCl₄ · 5H₂O ) and 3% by weight of antimony trichloride ( SbCl₃ ), dispersing the mixture using ultrasound, placing the ultrasonically dispersed mixture into an autoclave, heating it to 300°C at a rate of 5°C/min under a nitrogen atmosphere, and maintaining the temperature for 4 hours to produce a powder of 20 nanometers in size.
4. In paragraph 1, The grain paste used in the above grain paste application step is made by mixing 40% by weight of wood powder, 45% by weight of raw lacquer liquid, and 15% by weight of cooked rice paste, and then crushing the mixture; A method for nano-lacquering a craft product, characterized in that the polishing solution used in the above-mentioned middle polishing step is composed by adding 8.5 parts by weight of sodium pyrosulfite ( NaS₂O₅ ) and 5.5 parts by weight of cyclomethicone to 100 parts by weight of a mixture in which refined liquid and pine oil are mixed in a weight ratio of 1:1; and the above-mentioned finishing step is a step of polishing the upper polished surface with a cotton cloth, applying clay oil to the cotton cloth to create a gloss, wherein the clay oil is made by mixing 30% by weight of 10㎛ yellow clay powder and 70% by weight of soybean oil.
5. A wooden ornament (2); a wire (1) fixed to the upper surface of the ornament (2); a connecting string (3) fixed to the lower surface of the ornament (2); a loop (5) fixed to the end of the connecting string (3); and a bell (4) fixed to the loop (5). A nano-lacquer craft product characterized in that the surface of the ornament (2) is lacquered using the nano-lacquer method described in any one of claims 1, 3, and 4.

Description

Nano lacquer method of craftwork and nano lacquer craftwork manufactured by it The present invention relates to a nano-lacquer method for crafts and a nano-lacquer craft product manufactured thereby. More specifically, the invention relates to an improved nano-lacquer method for crafts and a nano-lacquer craft product manufactured thereby, which prevents deformation such as warping or cracking of the craft product by preventing moisture penetration while maintaining the natural texture of the wood by lacquering the surface of the wood constituting the craft product to increase the glossiness of the color, transparency, and strength of the lacquer layer. Generally, among the various methods of utilizing solid wood in crafts, there are techniques such as carving pictures or patterns onto the surface; typically, these involve directly carving the wood surface, combining carved pieces, incorporating motifs like landscapes, or drawing directly onto the wood surface. However, since these crafts use expensive solid wood, management and maintenance are crucial; yet, due to the nature of wood, they are susceptible to moisture and prone to problems such as deformation or cracking, so improvements are needed in this regard. Meanwhile, traditionally, lacquer is made by obtaining lacquer tree sap from nature and completing it through multiple processes to produce refined lacquer and transparent lacquer. This type of lacquer is widely used in high-end products because it is superior to petrochemical-based paints in terms of oil resistance and eco-friendliness. Nevertheless, traditional lacquerware has the disadvantage of requiring a long production time due to the large number of processes, production time, and issues related to defect repair. However, if the process is shortened, the gloss and transparency of the color will decrease, and furthermore, the strength of the lacquered film may decrease, which may reduce durability, so it is necessary to make improvements. FIG. 1 is an exemplary illustration of a craft product according to the present invention. Hereinafter, preferred embodiments according to the present invention will be described in more detail. The nano-lacquer method for a craft product according to the present invention relates to a method of lacquering a decorative item constituting a craft product such as the example in FIG. 1 to enhance aesthetic sense, decorative beauty, and natural beauty. In this case, the wood constituting the above craft item is preferably cypress, but it is not necessary to limit it to cypress. In addition, the present invention also uses raw lacquer liquid, which refers to lacquer liquid that has not been boiled over a fire. In addition, the nano lacquer according to the present invention uses a purified liquid made by further refining lacquer extracted from a lacquer tree, which has an average particle size of 10㎛, and processing it to have a particle size of 180-650 nanometers. More specifically, the nano-lacquer method for a craft product according to the present invention comprises: a craft product manufacturing step; a curved lacquer application step in which the surface of a decorative item constituting the manufactured craft product is inspected to find scratches or impurities, and then filled in or corrected; a sandpaper polishing step in which the surface is smoothed with sandpaper after the curved lacquer application step; a middle lacquer application step in which a middle lacquer liquid is applied to the smooth surface processed with sandpaper; a middle lacquer surface polishing step in which the middle lacquer surface is polished with a polishing cloth soaked in a polishing liquid; a design step in which a design or picture is expressed on the polished middle lacquer surface; a top lacquer application step in which the designed surface is lacquered with a top lacquer liquid; and a finishing step in which the top lacquer surface is polished with a cotton cloth soaked in clay oil after the top lacquer application to produce a shine. Here, the above-mentioned liquid comprises, for every 100 parts by weight of purified liquid, 5 parts by weight of glycidyl neodecanoate, 5 parts by weight of 2-hydroxyethyl methacrylic acid (2-HEMA), 10 parts by weight of nonylphenol ethoxylated, 5 parts by weight of a mixture of MgO, MgCl₂ and acetic acid, 5 parts by weight of polyoxyethylene, 5 parts by weight of ethylene bis stearamide, and 5 parts by weight of urushiol. At this time, glycidyl neodecanoate functions to maintain transparency by suppressing color development as a transparent water-white liquid. In addition, 2-hydroxyethyl methacrylic acid (2-HEMA) is sensitive to light and moisture, and the monomer is hydrophilic, so it is added to enhance adhesion. In addition, nonylphenol ethoxylated inhibits aggregation, preventing precipitation. In addition, a mixture of MgO, MgCl₂ , and acetic acid is formed by adding acetic acid to MgO and MgCl₂ while maintaining a weight ratio of