KR20060014896A - A new silverware manufacture which is omtibacteria used chemicol compound of silver and brom - Google Patents

Abstract

100 g of photoinitiator which is at least one compound selected from the group consisting of benzophenone, 1-hydroxycyclohexyl acetophenone, alpha, alpha-dimethyl-alpha hydroxyacetophenone, acrylated benzophenone, and benzyl ketal; UV coating composition composed of 200 g of isopropyl alcohol, 30 g of isopropyl alcohol, 10 g of toluene, 10 g of silver salt solution, and any one compound selected from the group consisting of latex, N-vinyl-2-pinyridone, 2-hydroxypropyl acrylate, and It relates to a manufacturing method.

UV coating composition. Photoinitiator. Silver Salt Solution, Isopropyl Alcohol

Description

UV coating composition and its manufacturing method {A New Silverware Manufacture Which is Omtibacteria Used Chemicol Compound of Silver and Brom}

The present invention relates to a UV coating composition having a UV-blocking effect composed of silver salt, toluene, isopropyl alcohol, acrylic resin, and other additives to be coated on various synthetic resin product surfaces, and a manufacturing method thereof.

In general, in order to prevent deterioration under ultraviolet light such as artificial lighting including sunlight or ultraviolet rays in synthetic resin products, UV coating composition has been used to prevent direct irradiation with ultraviolet rays.

In the case of film reinforcement, it is used by coating with a coating composition according to various other uses, UV coating agent has been used a lot because it has the strength of strength.

For example, Korean Laid-Open Patent Publication No. 2001-0084405 discloses a solution in which a spiropyran-based photochromic compound is dissolved in a toluene / alcohol mixed solvent in a resin granium at 0.05 to 38 hours at 20 to 50 ° C. , UV-blocking film formed by heating to 160 ~ 300 ℃ is described,

Korean Patent Publication No. 10-2002-0030474 discloses a microgel solution in which an electrically conductive polymer is adsorbed on the surface, a colloidal silica solution obtained by reacting tetraalkoxy silane and silyl acrylate in the presence of a water-soluble alcohol, and qxj in monofunctional. Although UV-curable hard coating agents containing polyfunctional acrylic monomers or vinyl ether monomers and electrically conductive microgels including photoinitiators have been described and their use,

Such conventional techniques have been problematic in that the UV blocking function is inadequate, degrades too quickly, the UV blocking effect is not homogeneous, and lacks antimicrobial properties.

The present invention is to provide a UV coating composition composed of silver salt, toluene, isopropyl alcohol, acrylic resin and other additives and a method for producing the same to solve the problems as described above. It is a technical problem.

The present invention for achieving the above object is one selected from the group consisting of benzophenone, 1-hydroxycyclohexyl acetophenone, alpha, alpha-dimethyl-alpha hydroxyacetophenone, acrylated benzophenone, benzyl ketal 100 g of photoinitiators which are the above compounds, 200 g of acrylic resins, 30 g of isopropyl alcohol, 10 g of toluene, silver salt which are any compound selected from phenoxyethyl acrylate, N-vinyl-2-pinyridone and 2-hydroxypropyl acrylate The present invention relates to a UV coating composition composed of 10 g of a solution and a method of manufacturing the same.

Photoinitiators increase the reactivity and increase the curing rate for various curing by absorbing ultraviolet light of a wide range of wavelengths, benzophenone, 1-hydroxycyclohexylacetophenone, alpha, alpha-dimethyl-alphahydroxyacetophenone, acrylated One or more mixtures selected from the group consisting of benzophenone and benzyl ketal are preferred, and it is preferable to include silicone acrylate as an additive.

It is preferable to include isopropyl alcohol and toluene in the ratio of 1.5-3: 1 as a non-reactive solvent, and acrylic resin was added and used.

The acrylic resin used in the present invention is to use any one compound selected from phenoxyethyl acrylate, N-vinyl-2-pinyridone, 2-hydroxypropyl acrylate.

If you look at the production of silver salt, crushed 300g of silver in the dissolving tank, add nitric acid while heating and dissolving silver consumes 280ml of nitric acid. In addition, 100 g of stannous chloride is dissolved in 100 ml of hydrochloric acid, and then synthetically stirred with the silver solution. In order to adjust the silver solution to neutral pH, 150 g of zinc oxide was dissolved in 500 ml of caustic soda solution (PH13) to synthesize PH with silver solution to make PH7.5 to evaporate water to obtain silver salt of powder powder. Dissolve 300 g of the silver salt in 1000 ml of water, add 100 g of bromine soda, stir, add 3 ml of hydrogen peroxide, stir for 30 minutes, evaporate the hydrogen peroxide while oxidizing the silver solution, and put it in a glass bottle for 1 hour in the sun. The particles precipitate and light brown or liquid translucent liquid silver antibacterial agents are formed. The silver antibacterial agent is diluted to 500 ~ 1000 times of water and immersed in the fabric to be used as an antibacterial or inorganic disinfectant, so it is harmless to the factor and also has the antimicrobial power as well as the Korea Consumer Science Institute and the Korea Yarn Textile Research Institute. Antimicrobial and test test methods and toxicity test methods have also demonstrated that the inorganic antimicrobial agent of the present invention is harmless to factors in the antibacterial activity and biotoxicity test of 99.9%.

The present invention will be described in detail by way of examples.

Example

1st process

300 g of pulverized silver powder was put in a dissolution tank and slowly added 280 ml of 1N nitric acid while heating to prepare a silver solution. 100 g of stannous chloride and 100 ml of hydrochloric acid were synthesized and stirred in the silver solution, followed by dissolving 150 g of zinc oxide in 500 ml of 1N caustic soda solution (PH13) and mixing it with the first step silver solution. While stirring to keep the temperature at 100 ℃ while evaporating the water for 3 to 5 hours in a drier to prepare a powder powder, 300 g of the powder powder is added by mixing 100 g of bromine soda to prepare a silver salt of the present invention After dissolving 300 g of the silver salt in 1000 ml of water, it becomes a silver salt solution of a light brown liquid. In order to decolorize and oxidize the silver salt solution, 3 ml of hydrogen peroxide was added and stirred for 30 minutes to evaporate hydrogen peroxide and put in a transparent glass bottle. A small amount of brown precipitate produced by exposure to 1 hour was filtered to prepare a translucent silver salt solution.

2nd process

1,500 ~ After stirring at a rate of 2500 RPM to prepare a UV coating

3rd process

Sprayed in a UV coating liquid storage tank in which the UV coating liquid prepared in the second process is stored on the upper portion of the film introduced by the conveyor belt, coated on the upper portion of the film, and then transferred to a drying chamber at 10 ° C. to 10 ° C. It dried for 20 minutes and coated the UV coating solution on the surface of the film.

Experimental Example

When Example 1 and the conventional UV coating (UV) coating solution was exposed to room and sunlight, the discoloration rate and the degree of discoloration were determined by the sensory test and the results are shown in Table 1 below. In addition, using a daylight fastness measuring instrument, the conditions of 40 ℃, relative humidity 40% and using a UV lamp as a light source to determine the speed of change and the degree of discoloration by UV irradiation and irradiation time by sensory necrosis and the results are shown in Table 1 It was.

Table 1

division Example 1 Conventional UV coating liquid Drying time 3 to 4 hours More than 6 hours Curing time 6-7 hours at 20 ℃ 22 hours at 20 ℃ Drying temperature 75 ℃ ~ 80 ℃ 80 ℃ UV protection 97% 66% decolorization Good usually

The present invention as described above is coated on the surface of the synthetic resin, a high-strength thin film is formed, it has the advantage of excellent flexibility and UV protection.

Claims (2)

In the manufacturing method of UV coating composition, 1st process 300 g of pulverized silver powder was added to a dissolution tank, and 280 ml of 1N nitric acid was gradually added to dissolve while heating to prepare a silver solution. Then, a solution obtained by dissolving 100 g of stannous chloride and 100 ml of hydrochloric acid was dissolved in the silver solution. Synthetic agitation and then dissolve 150 g of zinc oxide in 500 ml of 1N caustic soda solution (PH13) and stir at pH 7.5 while mixing with silver solution in the first step. After evaporating the water and putting it in a drier to prepare a powder powder, 300 g of powder powder is added by mixing 100 g of bromine soda to prepare a silver salt of the present invention. Then, 300 g of the silver salt is dissolved in 1000 ml of water to obtain a pale brown liquid. It becomes a silver salt solution. In order to decolorize and oxidize the silver salt solution, 3 ml of hydrogen peroxide is added and stirred for 30 minutes to evaporate hydrogen peroxide, which is placed in a transparent glass bottle and exposed to the sun for 1 hour. By filtering the small amount of brown precipitate to prepare a silver salt solution, and then the semi-transparent, 2nd process 100 g of benzophenone, 30 g of isopropyl alcohol, 10 g of toluene, 200 g of phenoxyethyl acrylate, 5 g of silicon acrylate, and 10 g of the silver salt solution prepared in the first step were put into a stirrer and heated at 50 ° C. for 30 minutes, 1,500 to 2,500 Method for producing a UV (UV) coating composition characterized in that it is prepared by stirring at a rate of RPM. In UV coating composition, 100 g of photoinitiator, which is at least one compound selected from the group consisting of benzophenone, 1-hydroxycyclohexylacetophenone, alpha, alpha-dimethyl-alphahydroxyacetophenone, acrylated benzophenone, and benzyl ketal; 200 g of acrylic resin which is any compound selected from phenoxyethyl acrylate, N-vinyl-2-pinyridone and 2-hydroxypropyl acrylate; A UV coating composition comprising 5 g of silicone acrylate, 30 g of isopropyl alcohol, 10 g of toluene, and 10 g of silver salt solution.