KR101057499B1 - Sheets for surface antifouling and preventing an adhering material applying uv paint and thereof manufacturing method - Google Patents

Abstract

PURPOSE: A sheet for preventing illegal advertisement adhesion and surface contamination is provided to semi-permanently keep the performance for preventing the adhesion to the surface of the sheet and to prevent the contamination of the surface of the sheet. CONSTITUTION: A sheet for preventing illegal advertisement adhesion and surface contamination using UV paints are coated with UV paints for preventing the adhesion. The UV paints for preventing the adhesion includes: 20~50 weight% of an oligomer mixture in which an urethane acrylate oligomer and an epoxy acrylate oligomer are mixed in a ratio of 6:4; 5~30 weight% of an acrylic monomer; 5~30 weight% of a petroleum-based organic solvent; 5~30 weight% of polyethylene or polystyrene having the particle size of 30~300 micrometer; 2~10 weight% of organic modifide polysiloxane; and 1~5 weight% of a dispersing agent.

Description

Sheets for surface antifouling and preventing an adhering material applying UV paint and description manufacturing method}

The present invention relates to an anti-adhesion and surface contamination prevention sheet and a manufacturing method using UV coating, and more particularly, the anti-adhesion performance of the sheet surface is maintained semi-permanently, and the surface of the sheet is not easily contaminated. In addition, the present invention relates to a sheet having an anti-sticking function and an anti-contamination function, and a method of manufacturing the same, in which the release layer of the surface is preserved without being damaged even when washed by an industrial cleaning agent.

In general, as an early technique for blocking illegal advertisements such as leaflets, viaducts, bridges, public facilities, traffic lights, street lamps, poles, etc. Soft synthetic resin plates were used a lot.

However, the anti-adhesion plate has a weak point to prevent adhesion, the leaflet is easily attached with a blue tape, etc., there was a limit that can be easily attached to the leaflet with a stamper. In addition, most of the dark gray soft plastic products have been replaced by new technologies because they have a bad effect on the streetscape by decorating the urban landscape.

On the other hand, the advertised anti-adhesion sheet appeared as an alternative technology to the anti-sticking plate has a relatively flat surface, provides the anti-adhesive performance of the ad, and can be delivered a variety of images are in the spotlight.

Advertisement prevention sheet known in the art is generally applied to the anti-sticking coating having a release property on the printed fabric to impart anti-sticking performance.

In particular, since the conventional anti-stick coating is manufactured based on the general industrial synthetic resin paint, the physical properties and disadvantages of the anti-stick coating surface of the surface also does not deviate from the scope of the general industrial synthetic paint.

Conventional anti-stick sheets have used a technique of additionally coating a silicone compound on the surface to form a release property on the surface, but a large number of silicone compounds are applied in liquid or semi-solid form on the target surface, and the release layer is easily damaged by external factors. There was a limit to become dirty by making it easily stick to the fine dust of the city. That is, when exposed to the polluted environment of the city there was a problem that the surface is easily dirty with fine dust and muddy water.

In addition, when surface cleaning using an industrial cleaner, etc., there was a disadvantage that additional maintenance is required due to deterioration of adhesion preventing performance due to damage to the release layer of the surface.

On the other hand, the anti-adhesive paint applied to the existing anti-stick sheet is generally a one-component natural dry or two-component hard-drying paint, etc., and has a limitation of low productivity because it takes a long time to dry the painted surface. there was.

Therefore, not only the durability of the anti-sticking function against illegal advertisements, but also the surface can be easily cleaned even if the contamination is not contaminated, and the demand for more productive anti-stick sheet is increasing.

The present invention has been made to solve the above problems, the first object of the present invention is not only excellent anti-sticking performance of the surface of the sheet, but also semi-permanently maintained, the surface of the sheet is not easily contaminated, water or industrial cleaning agent The present invention provides a sheet and a method for producing the sheet which do not deteriorate the release layer on the surface even when washed by the surface or the like.

In addition, the second object of the present invention, the coating is completed by applying a paint on the printing fabric once, the adhesion prevention function that the productivity is dramatically increased because the applied paint is completely cured in a short time by the UV light source (UV) And a sheet having a surface contamination prevention function.

The composition of the coating applied to the anti-adhesion and surface contamination prevention sheet of the present invention according to the above object is 20 to 50% by weight of the urethane acrylate oligomer and epoxy acrylate oligomer in a ratio of 6: 4, acrylic monomer 5-30 It is composed of 5% by weight, 5-30% by weight of petroleum-based organic solvent, 5-30% by weight of polyethylene or polystyrene having a particle size of 30-300 micrometers, 2-10% by weight of organic modified polysiloxane, and 1-5% by weight of dispersant. In the manufacture of sheets, a design desired by a consumer is printed on a printing fabric, and a map or a map indicating emergency tourism and address numbers, an emergency rescue signal, and a unique identification number of a facility are printed in the margin of the printing fabric on which the design is printed. A printing step of printing a QR code (Quick Response Code) for delivery to the information required by the consumer, and after the printing step by using an air spray on the sheet printed design The coating step of uniformly applying UV-resistant coating and the curing of UV coating by exposing the UV coated sheet to the metal lamp for 2 to 10 seconds through the coating step. And a post-treatment step of removing edge margins of the cured sheet through the curing step.

As described above, the anti-adhesion anti-adhesion and surface contamination prevention sheet to which the UV coating according to the present invention is applied has excellent effects of maintaining the anti-adhesion performance of the surface semi-permanently because the weather resistance and the coating film properties are superior to the general paint. .

In addition, since the paint on the surface of the sheet is completely cured by using UV light sources, it forms a solid coating film, which is not easily contaminated and preserved without damaging the release layer on the surface even when washed with an industrial cleaner. It is an economical invention that has the advantage of reducing maintenance costs.

Furthermore, the coating is completed by applying the paint on the printed fabric once, and the coated paint is a very useful invention in which productivity is dramatically increased due to complete curing in a short time by a UV light source.

1 is a block diagram showing a method of manufacturing an anti-sticking and surface contamination prevention sheet to which UV coating is applied according to an embodiment of the present invention.
Figure 2 is an actual picture showing the coating step of the production method of the anti-sticking and surface contamination prevention sheet to which the UV coating (UV) coating according to an embodiment of the present invention
Figure 3 is an actual picture showing the curing step of the manufacturing method of the anti-sticking and surface contamination prevention sheet applying UV coating according to an embodiment of the present invention
4a to 4b is a comparative test report for the surface adhesion strength of the anti-sticking and surface contamination prevention sheet applying the UV coating of the present invention, commissioned by Korea Institute of Construction and Environmental Testing (KCL)
5a to 5b is a comparative test report of fouling resistance of the anti-sticking and surface contamination prevention sheet applying the UV coating of the present invention commissioned by Korea Institute of Construction and Environmental Testing (KCL)

In order to achieve the above object, the present invention is a composition of the coating applied to the sheet is a urethane acrylate oligomer (Urethane Acrylate Oligomer) and epoxy acrylate oligomer (Epoxy Acrylate Oligomer) in a ratio of 6: 4 to 20 to 50% by weight, 5-30% by weight of acrylic monomer, 5-30% by weight of petroleum organic solvent, 5-30% by weight of polyethylene or polystyrene having particle size of 30-300 micrometer 30 wt%, organic modified polysiloxane (Organic Modifide Polysiloxane) 2 to 10% by weight, dispersing agent (Dispersing agent) is composed of 1 to 5% by weight, the manufacture of the sheet is printed on the fabric for printing the design desired by the consumer, the design is QR code (Quick Re) to deliver tourist information and address number in the margin of printed printing fabric, map or emergency rescue signal, and unique identification number of facility as required information a printing step of printing a sponse code), an application step of uniformly applying an anti-sticking UV coating on the sheet on which the design is printed after the printing step by using an air spray, and the application step The UV coated coating sheet is exposed to a metal lamp having a central wavelength of 365 nm for 2 to 10 seconds to cure the UV coating, and the curing step is performed through the UV coating. UV) paint consists of a post-treatment step to remove edge margins of the cured sheet.

Hereinafter, the present invention will be described in detail.

The composition used in the anti-sticking and surface contamination prevention sheet to which UV coating is applied according to an embodiment of the present invention is a polyurethane acrylate oligomer (Urethane Acrylate Oligomer) and epoxy acrylate oligomer (Epoxy Acrylate Oligomer) of 6: 4 Polyethylene having a particle size of 20 to 50% by weight, 5 to 30% by weight of acrylic monomer, 5 to 30% by weight of petroleum organic solvent, and 30 to 300 micrometers ) Or 5 to 30% by weight of polystyrene, 2 to 10% by weight of organic modified polysiloxane (Organic Modifide Polysiloxane), and 1 to 5% by weight of dispersing agent.

The printing fabric used in the present invention generally uses a PVC Flex fabric for outdoor advertising, and in the production of UV coatings, the adhesion performance to the base resin and the target surface constituting the base of UV coatings It is composed of a functional resin for improving the viscosity, an organic solvent for viscosity adjustment, and other functional additives for imparting releasability (easily falling property).

The base resin constituting the base of the UV (UV) paint contains 20 to 50 wt% of a urethane acrylate oligomer (Urethane Acrylate Oligomer) and epoxy acrylate oligomer (Epoxy Acrylate Oligomer) in a ratio of 6: 4.

In addition, 5-30% by weight of an acrylic monomer is included as a functional resin for improving adhesion to a printing fabric to which UV coating is applied, and an organic solvent for controlling viscosity of the paint is a petroleum-based organic solvent. (Organic Solvent) is contained 5 to 30% by weight.

In addition, 5 to 30% by weight of polyethylene or polystyrene having a particle size of 30 to 300 microns is included as a component for preventing irregularities from adhering by forming irregularities on the surface of the printing fabric.

However, in order to improve the transparency for the consumer to see the desired design in the process of printing a design desired by the customer on the printing fabric and then applying UV coating on it, the polyethylene or polystyrene is not included in the paint. Configuration is also possible.

In other words, the composition of UV (UV) coating is 25 to 65% by weight of the urethane acrylate oligomer (Urethane Acrylate Oligomer) and epoxy acrylate oligomer (Epoxy Acrylate Oligomer) 6: 4, acrylic monomer (Acrylic monomer) 5 ~ 30% by weight, 5% to 45% by weight of organic solvent (Organic Solvent), 2 to 10% by weight of organic modified polysiloxane (Organic Modifide Polysiloxane), 1 to 5% by weight of dispersing agent (Dispersing agent).

Meanwhile, polypropylene or acrylic beads or glass beads may be used instead of polyethylene or polystyrene to form irregularities on the surface of the printing fabric through the fine particles.

In addition, it is also possible to be used in place of the mixture of the polypropylene, acrylic beads and glass beads, the mixing ratio of the mixture of the polypropylene, acrylic beads and glass beads can be selected arbitrarily by the manufacturer of the paint, the mixing ratio is not determined .

In addition, the composition contained in the UV coating of the present invention, as a functional additive for imparting releasability includes 2 to 10% by weight of an organic modified polysiloxane (Organic Modifide Polysiloxane), in addition to the dispersing agent (Dispersing agent) 1 ~ 5% by weight is included.

The production method of the UV (UV) paint is as follows.

First, adjust the viscosity by mixing the basic resin and the organic solvent in the reaction tank maintained at a temperature between 100 ~ 200 ℃, while stirring at a rate of 50 ~ 100RPM added functional resin and fine particles and then mixed with the functional additives Add a dispersant and mix.

At this time, while maintaining the temperature and stirring speed for 15 to 20 minutes, the heating is stopped and naturally cooled at room temperature. During natural cooling, store at room temperature for 4-6 hours, and stir at a speed of 20-50 RPM to allow fine bubbles in the paint to escape.

1 is a block diagram illustrating a method for manufacturing an anti-sticking and surface contamination prevention sheet applying UV coating according to an embodiment of the present invention. Referring to FIG. 1, a design desired by a consumer is printed on a fabric for printing. A printing step and an application step of uniformly applying an anti-sticking UV coating on the sheet on which the design is printed after the printing step, and a UV coating coating through the applying step. Is exposed to a metal lamp having a central wavelength of 365 nm for 2 to 10 seconds to cure UV coating, and after the curing step, to remove the edge margin of the UV cured sheet. It consists of processing steps.

FIG. 2 is an actual photograph showing an application step of applying UV coating with an air spray in a method of manufacturing an anti-sticking and surface contamination prevention sheet using UV coating according to an embodiment of the present invention. FIG. It is a real picture showing the curing step of curing the product surface with a curing dryer using a UV (UV) lamp in the production method of the anti-sticking and surface contamination prevention sheet applied UV coating according to an embodiment of the present invention.

In particular, in the curing step, a light source for UV curing is mainly used a metal lamp, but in addition to the mercury lamp, gallium lamp may be selected according to the characteristics of the paint. In addition, in the curing step, the sheet coated with UV coating (UV) is exposed to the metal lamp for 2 to 10 seconds to cure, but preferably 4 to 6 seconds.

In addition, it is also possible to print a QR code (Quick Response Code) for a variety of information transmission in the margin of the printing fabric, the design is printed in the printing step, the map or the public information to the tourism publicity and address number Functionality can be further improved through the insertion of QR codes that deliver a variety of information required by the consumer, such as maps, emergency rescue signals, and unique identification numbers of facilities.

Figures 4a to 4b is a comparative test report for the surface adhesion strength of the anti-sticking and surface contamination prevention sheet applying the UV coating of the present invention commissioned by the Korea Institute of Construction and Environmental Testing (KCL), see Figs. 4a to 4b To sum up is as follows.

       Surface adhesion strength comparison data division Advertisement prevention and contamination prevention sheet with UV coating Existing Advertisement Prevention Sheet Surface Adhesion Strength (Releasability) 0 N / cm 0.04 N / cm (0.004 kgf / cm)

Surface adhesive strength test is a test to measure the force to remove the blue tape by pressing and applying the strong adhesive blue tape firmly to the target surface, pressing it with a roller, biting the tensioner, and then using 180 ° peeling.

· The lower the surface adhesive strength value, the better the release property (easily falling property).

Adhesive strength comparative example: adhesive strength 2 ~ 4 N / cm when blue tape is attached to steel plate

                    Adhesion strength 0.2 ~ 0.4 N / cm when post-it is attached to iron plate

Based on the data of the above experiment, the existing anti-stick sheet exhibits excellent anti-sticking performance such that the normal blue tape or adhesive does not adhere to about 0.04 N / cm, and the anti-sticking material and surface using UV coating (UV) paint. The anti-fouling sheet is less than the minimum value that can be measured by the measuring tensioner to confirm the excellent performance of the adhesive is not attached at all.

Therefore, the anti-fouling and surface antifouling sheets to which the UV coating is applied according to the present invention have excellent physical properties of the surface coating film, but are relatively expensive and have difficulty in implementing anti-sticking performances. By applying the anti-sticking function to UV coatings, the anti-sticking function is better than the conventional anti-sticking sheet which can block illegal advertisements at the source.

Furthermore, UV-coated and anti-fouling sheets are resistant to UV, which degrades and weakens conventional paints and synthetic resins. In addition, the UV coating mechanism, which has a strong energy of UV light and hardens to produce a sheet having excellent weather resistance and film properties superior to general coatings.

5a to 5b is a comparative test report of fouling resistance of the anti-sticking and surface contamination prevention sheet applying the UV coating of the present invention, commissioned by Korea Institute of Construction and Environmental Testing (KCL), see FIGS. 5a to 5b. To sum up is as follows.

       Pollution Resistance Experimental Data division Advertisement prevention and contamination prevention sheet with UV coating Existing Advertisement Prevention Sheet Color difference after carbon black pollution resistance 10 28 Color difference after soil water resistance 0.8 0.9

Carbon black stain resistance: Apply a solution of 10% diluted carbon black pigment to water once on the sample surface, dry at 80 ℃ for 2 hours, and wipe off with a sponge in running water to remove contaminants.

Muddy water contamination resistance: Soak in muddy water for 1 hour, dry it and wipe it with a sponge in running water to remove contaminants

Color difference measurement after pollution resistance test: The color difference is measured by using a color difference meter to measure the degree of darkening of color due to the contamination on the surface, and the larger the color difference means that more dirt remains. Means removed.

Although the pollution resistance by general muddy water was not significantly different through the data from the above experiment, UV coatings were compared in the carbon black pollution resistance evaluation similar in appearance to the fine dust discharged from cars and buses, which are major pollutant emission sources in the city. Adsorption prevention sheet applying the ad can be confirmed that the contamination resistance is excellent about 2.8 times or more than the existing anti-sticking sheet.

This means that even with simple rain, pollutants can be washed down about 3 times more easily than existing sheets, and public facilities that have installed UV-coated and anti-fouling sheets have a long time without additional cleaning. It is an experimental result that can be discharged that it can be kept clean.

In addition, the conventional anti-sticking coating is mostly used when various organic solvents are removed to contaminate oily graffiti, such as oily magic or lacquer spray, the surface of the coating film is damaged, but according to the embodiment of the present invention Anti-sticking and surface contamination prevention sheet with UV coating is not damaged by general organic solvents, so only oily graffiti on the surface can be selectively removed, which greatly reduces maintenance costs.

In addition, in the case of conventional anti-stick paint, it takes several hours to dry after applying the paint, and it is time-consuming and labor-intensive because it is divided into the primary paint and the secondary paint together with the low workability. Although there are disadvantages, the coating prevention coating using UV coating according to the present invention is completed in one application, and the coating is completely cured within seconds through the UV coating, which significantly increases productivity. It has the advantage of

Claims (5)

Urethane Acrylate Oligomer and Epoxy Acrylate Oligomer are 20 to 50% by weight in a ratio of 6: 4, 5 to 30% by weight of acrylic monomer, and petroleum organic solvent Solvent) 5-30% by weight, 5-30% by weight of polyethylene or polystyrene having a particle size of 30-300 micrometers, 2-10% by weight of organic modified polysiloxane, Dispersing agent Anti-adhesive UV coating applied to the fabric, characterized in that the UV coating (UV) coating is composed of 1 to 5% by weight of the coating material to prevent adhesion and surface contamination prevention sheet Prints the design desired by the consumer on the printing fabric, and the user requests the map or map, the emergency rescue signal, and the unique identification number of the facility, which can know the tourism promotion and the address number, in the margin of the printing fabric on which the design is printed. A printing step of printing a QR code (Quick Response Code) for delivery to; and
An application step of uniformly applying the anti-stick UV coating of claim 1 using an air spray on a sheet on which a design is printed after the printing step; and
A curing step of curing the UV coating of claim 1 by exposing the sheet coated with UV coating through the coating step to a metal lamp having a center wavelength of 365 nm for 2 to 10 seconds.
The post-treatment step of removing the edge margin of the sheet cured UV coating (UV) through the curing step; Anti-sticking and applying a surface contamination prevention sheet applied to the UV coating (UV), characterized in that consisting of delete delete The method of claim 1,
Adherence prevention and surface contamination prevention sheet applying UV coating, characterized in that used by replacing the polyethylene or polystyrene with a mixture of polypropylene, acrylic beads, glass beads, polypropylene and acrylic beads and glass beads

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