KR100955237B1 - Light sensitive fabric materials and light sensitive adhesive film and method of preparing thereof - Google Patents

Abstract

PURPOSE: A light sensitive fabric material, a light sensitive adhesive film therefor, and a manufacturing method thereof are provided to effectively support and protect a body by shielding ultraviolet rays and sunlight by rapidly discoloring the material according to light strength directly penetrated into micro-pores. CONSTITUTION: A light sensitive fabric material comprises the following: a fabric base layer selected from fabric, knitting fabric, or non-woven fabric. An adhesive layer(12) is formed on the surfaced of the fabric base layer. A bead type sense discoloration polyurethane resin layer(14) is laminated on the surface of the adhesive layer after dispersing ultraviolet ray sense discoloration microcapsules(13,15) on bead type polyurethane resin.

Description

PHOTOSENSITIVE FABRIC MATERIALS AND LIGHT SENSITIVE ADHESIVE FILM AND METHOD OF PREPARING THEREOF}

The present invention relates to a fabric material that detects ultraviolet rays and discolors according to the detected intensity of ultraviolet rays and shields them from ultraviolet rays. Specifically, fine pores are formed in the bead type photochromic polyurethane resin layer to facilitate air and moisture. At the same time, UV-sensitive discoloration microcapsules rapidly change color in proportion to the intensity of light penetrating directly into the micropores, and thus, a photosensitive fabric material capable of effectively protecting the human body by shading and shielding ultraviolet rays, and a photosensitive adhesive film for manufacturing the same; The manufacturing method is related.

In recent years, sports leisure activities and outdoor activities have increased significantly according to changes in industrial activities and lifestyles, income growth, and leisure atmosphere.

However, during such sports leisure activities or outdoor activities are exposed to UV changes harmful to the temperature and human body, even if you do not recognize or recognize such changes in temperature and ultraviolet rays if you have to continue sports leisure activities or outdoor activities, etc. Frequently, if the person or others in the thermal environment fail to notice rapid changes in temperature and ultraviolet radiation, the body's temperature changes, and the ultraviolet rays, have serious adverse health effects.

Therefore, in order to prevent or minimize such health problems, it is a first priority for people in the thermal environment to recognize sudden temperature and climate change, and to block rapidly changing temperature and ultraviolet rays, but in the past, the rapidly changing temperature And the means for blocking ultraviolet rays are inevitably exposed to sudden changes in temperature and ultraviolet rays, thereby causing a problem that adversely affects people's health and faces various risks.

In order to solve this problem, research and development of a composite bag or composite material that detects the temperature in the thermal environment system associated with the human body and discolors according to the detected temperature is being actively progressed. For example, Korean Laid-Open Patent Publication No. 1992-482 (name of the invention: a method of manufacturing a discolorable forge) applies a mixture of thermochromic microcapsules and thick arc to one surface of a fiber cloth to form a thermochromic layer. The color changeable forge comprising a protective resin layer formed by coating a protective resin on the surface of the thermochromic layer is disclosed. The discolorable forge is composed of a thermochromic layer formed on one surface of the fiber cloth and a protective resin layer to protect the thermochromic layer, the structure is complicated and the manufacturing cost rises, and the thermochromic layer is not breathable due to the protective resin layer The thermochromic microcapsules of the layer are blocked from the outside air and thus do not detect the temperature quickly and accurately in the thermal environment, but also do not block ultraviolet rays harmful to the human body at all.

In addition, Korean Laid-Open Patent Publication No. 2002-59049 (name of the invention: a method for manufacturing a thermochromic coating fabric having excellent washing resistance and a thermochromic coating fabric prepared by the method) includes a microparticle into which a thermochromic material is incorporated. Disclosed is a thermochromic coating fabric obtained by applying a mixed solution of a capsule emulsion and a foaming composition to a bubble paper and foaming the applied mixed solution mechanically or chemically. The thermochromic coating fabric is damaged by microcapsules contained in the mixed solution during the foaming process, so that the thermochromic function of the coating fabric is greatly degraded or, in the worst case, is lost, and ultraviolet rays harmful to the human body are not blocked at all. Since the mixed solution applied to the surface of the fabric is foamed, there is a problem that it is very difficult to use for applications other than clothing materials.

In addition, Korean Patent Application No. 2008-86728 (name of the invention: a composite for temperature sensing in a thermal environment and a textile product manufactured therefrom) discloses thermochromic microcapsules on a substrate and a polyurethane resin laminated on one surface of the substrate. The composite for temperature sensing in the thermal environment system containing this dispersed thermochromic resin layer is disclosed. The temperature sensing composite in the thermal environment system may support the recognition of the temperature of the thermal environment system related to the human body by changing the color of the thermochromic microcapsules dispersed in the thermochromic resin layer according to the ambient temperature change. However, the temperature sensing composite material does not penetrate air and moisture because micropores are not formed in the thermochromic resin layer, and ultraviolet rays do not easily discolor due to sunlight not penetrating into the thermochromic resin layer. In addition, ultraviolet light does not block at all, there is a problem that does not sufficiently protect the human body from sunlight.

Accordingly, an object of the present invention is that micropores are formed in the bead-type chromic polyurethane resin layer to easily permeate air and moisture, and at the same time, UV-sensitive chromic microcapsules rapidly discolor by light penetrating directly into the micropores. The present invention provides a photosensitive fabric material that can effectively protect a human body by shielding light from ultraviolet rays.

Another object of the present invention is to provide a photosensitive adhesive film used to produce the photosensitive fabric material, and a method of manufacturing the photosensitive adhesive film.

In order to achieve the above object, in the present invention, a woven layer of a material selected solely from the group consisting of woven, knitted, non-woven fabric; An adhesive layer formed by laminating on a surface of the forge layer; Ultraviolet-sensitive discoloration microcapsules are dispersed in the bead-type polyurethane resin and comprises a bead-type discoloring polyurethane resin layer formed by laminating on the surface of the adhesive layer, wherein the bead-type discoloring polyurethane resin layer is a hydrophilic polyurethane resin. In addition, by applying a polyurethane composition consisting of a solvent mixture of two or more selected from the group consisting of UV-sensitive discoloration microcapsules, methyl ethyl ketone, toluene and dimethyl formamide and water and evaporate the solvents are evaporated. There is provided a photosensitive fabric material, characterized in that the ultraviolet-sensitive discoloration microcapsules are dispersed and supported in a bead-type polyurethane resin formed by performing a multi-stage heat treatment to evaporate in order from a low solvent to a higher boiling point solvent.

In the present invention, the release paper; UV-sensitive discoloration-colored polyurethane resin layer is dispersed in the bead-type polyurethane resin and laminated on the surface of the release paper; And it is provided with an adhesive film for producing a photosensitive textile material comprising an adhesive layer formed by laminating on the surface of the bead-type photochromic polyurethane resin layer dispersed in the ultraviolet-sensitive discoloration microcapsules.

In the present invention, a step of forming a hydrophilic polyurethane composition by mixing a solvent and water mixed solvent selected from the group consisting of hydrophilic polyurethane resin, UV-sensitive microcapsules, methyl ethyl ketone, toluene and dimethylformamide ; Applying the hydrophilic polyurethane composition to a surface of a release paper to form a laminate; Heat treating the laminate to evaporate solvents contained in the hydrophilic polyurethane composition, and performing a multi-stage heat treatment to evaporate solvents having the highest boiling point from the lowest boiling solvent to form a bead type resin laminate; Forming an adhesive film laminate by applying a synthetic resin melt in which UV-sensitive microcapsules are mixed to the surface of the bead-type photochromic polyurethane resin layer of the bead-type resin laminate; And it provides a method for producing an adhesive film for producing a photosensitive fabric material comprising the step of slowly cooling the adhesive film laminate at room temperature.

In the photosensitive fabric material according to the present invention, micropores are formed in the bead-type photochromic polyurethane resin layer to easily transmit air and moisture, and UV-sensitive microcapsules in proportion to the intensity of light penetrating directly into the micropores. This rapidly discoloration, shading and ultraviolet shielding has the effect of supporting the effective protection of the human body.

The present invention is an improved invention of Korean Patent Application No. 2008-86728 filed previously by the applicant of the present invention, wherein micropores are formed to allow air and moisture to be easily transmitted, and at the same time, it is rapid in proportion to the intensity of light easily penetrating. It is a technical idea that the bead-type photochromic polyurethane resin layer in which the ultraviolet-sensitive discoloration microcapsules which can be discolored, light-shielded, and ultraviolet-shielded is dispersed is formed by adhering to a substrate as a substrate.

The photosensitive textile material of the present invention will be described in detail with reference to the drawings and examples.

1 shows a cross-sectional structure of a photosensitive fabric material according to the present invention, Figure 2 shows a cross-sectional structure of an adhesive film for producing a photosensitive fabric material according to the present invention.

Referring to Figure 1, the photosensitive fabric material of the present invention includes a forge layer of a material selected solely from the group consisting of woven, knitted, nonwoven fabric.

The forge layer 11, which is a substrate of a photosensitive fabric material that can be used for a wide range of applications such as various textile products and daily necessities, includes a group of natural fibers, synthetic fibers, knitted fabrics, and nonwoven fabrics depending on the use of the photosensitive fabric material. Fabrics selected solely from are used.

Micropores are formed on at least one surface of the forge layer 11 of the material as described above, and air and moisture are easily transmitted, and are rapidly discolored by light that easily penetrates, and thus ultraviolet rays are sensitive. The bead type photochromic polyurethane resin layer 14 in which the discoloration microcapsules 13 are dispersed is bonded by an adhesive to form the photosensitive fabric material of the present invention.

In addition, the photosensitive fabric material of the present invention includes an adhesive layer formed by laminating on the surface of the forge layer.

Since the bead-type photochromic polyurethane resin layer 14 in which the ultraviolet-sensitive discoloration microcapsules are dispersed is a microporous structure made of micropores, and lacks self-adhesive power, the bead-type photochromic polyurethane resin layer 14 having the microporous structure is formed. There is a problem that it is very difficult to directly adhere to the surface of the forge layer 11 that is a woven material, a knitted material, a nonwoven material.

In order to solve this problem, in the present invention, an adhesive layer 12 for adhering the bead-type photochromic polyurethane resin layer 14 to at least one surface of the forge layer 11 serving as the substrate is formed.

The adhesive layer 12 for adhering the bead-type photochromic polyurethane resin layer 14 to the surface of the forge layer 11 may be formed using an adhesive of a known composition, but may be a synthetic resin such as polyurethane having an adhesive force. Melting and applying to form the adhesive layer 12 is preferable in terms of minimizing the impact on the health and environment of the operator.

In addition, the dispersion of the ultraviolet-sensitive discoloration microcapsules 15 in the adhesive layer 12 formed on the surface of the paper layer 11 may further improve the shading and ultraviolet shielding effect of the photosensitive fabric material. desirable.

By the adhesive force of the adhesive layer 12 as described above, the forge layer 11 and the bead-type color fading polyurethane resin layer 14 are bonded to each other.

In addition, the photosensitive fabric material of the present invention is a bead-type photochromic polyurethane resin layer is formed by dispersing the ultraviolet-sensitive discoloration microcapsules in the bead-type polyurethane resin and laminated on the surface of the adhesive layer.

The microporous is adhered to the forge layer 11, and the air and moisture are easily transmitted, and at the same time, it is rapidly discolored by the light easily penetrating into the pores, and the ultraviolet-sensitive discoloration microcapsules can be shielded and UV-shielded. A bead type photochromic polyurethane resin layer 14 in which 13) is dispersed is formed.

UV-sensitive discoloration microcapsules 13 dispersed in the bead-type photochromic polyurethane resin layer 14 are formed by incorporating a photosensitive photochromic material that provides a color change effect by visible light and ultraviolet rays. It is configured to change color in proportion.

The bead type photochromic polyurethane resin layer 14 is a polyurethane composed of a solvent and water mixed solvent selected from two or more selected from the group consisting of hydrophilic polyurethane resins, ultraviolet photochromic microcapsules, methyl ethyl ketone, toluene and dimethylformamide. The UV-sensitive photochromic microcapsules 13 are formed on a bead-type polyurethane resin formed by applying a composition and heat-treating the solvents contained therein to evaporate the evaporated solvents in the order of evaporating solvents from the lowest boiling point. It is distributed and supported.

Specifically, polyurethane resins are classified into hydrophilic polyurethane resins that are soluble in water and hydrophobic polyurethane resins that are not soluble in water, depending on the type of other bonding groups bonded to the urethane bond group (-NH-CO-O-). In order to form a bead structure by combining the urethane beads, hydrophilic polyurethane resin, UV-sensitive microcapsules and three or more solvents capable of dissolving the hydrophilic polyurethane resin are used. Water is necessarily used to form a polyurethane composition. Then, the polyurethane composition is applied and heat-treated to evaporate the solvents contained therein, but only if all of a series of processes and working conditions are performed to evaporate in order from the lowest boiling point solvent to the highest boiling point. Beads of a hydrophilic polyurethane material are generated and bonded to each other to form a bead-type structure in which micropores are formed, and the ultraviolet-sensitive discoloration microcapsules 13 are dispersed in the bead-type structure, thereby forming the bead-type insensitive discoloration polyurethane resin layer 14. This is what constitutes.

Among the polyurethane resins, a polyurethane composition is formed by using a hydrophobic polyurethane resin, UV-sensitive microcapsules and a solvent, and when the polyurethane composition is coated and subjected to multi-stage heat treatment, beads are bonded to each other to form a bead-type structure in which micropores are formed. The bead-type photochromic polyurethane resin layer is not constituted, but a polyurethane resin layer having a monolithic structure in which both surfaces are very dense without micropores is formed.

In addition, when the hydrophilic polyurethane composition is coated and heat treated once in a single temperature condition to simultaneously evaporate the solvent, the agglomeration of the hydrophilic polyurethane resin particles does not occur. The polyurethane resin layer is not constituted, but a polyurethane resin layer is formed which does not form micropores and forms a monolithic structure in which both surfaces are very dense. Therefore, in order to form the dispersed bead-type photochromic polyurethane resin layer 14, a hydrophilic polyurethane composition containing UV-sensitive photochromic microcapsules 13 is applied, and a multi-stage heat treatment is performed at different temperature conditions to sequentially dissolve the solvent. It is essential to evaporate. In order to perform the multi-stage heat treatment under different temperature conditions as described above, a solvent and a mixed solvent of water and two or more selected from the group consisting of hydrophilic polyurethane resins, UV-sensitive microcapsules and methyl ethyl ketone, toluene and dimethylformamide Should be used to construct a hydrophilic polyurethane composition, and the bead-type photochromic polyurethane resin layer 14 in which the UV-sensitive microcapsules 13 are dispersed may be constituted only when the hydrophilic polyurethane composition of the composition is used. have.

For example, hydrophilic polyurethane resins, ultraviolet ray-sensitive discoloration microcapsules, methyl ethyl ketone (MEK) having a boiling point of 80 ° C., water having a boiling point of 100 ° C., toluene having a boiling point of 110 ° C., and dimethylformamide (DMF) having a boiling point of 153 ° C. are uniform. The content is mixed and uniformly stirred to form a hydrophilic polyurethane composition.

The hydrophilic polyurethane composition is applied to a substrate having a low surface tension, that is, the surface of the release paper 21 to form a laminate, and methyl ethyl ketone, water, toluene and dimethylform contained in the hydrophilic polyurethane composition of the laminate. In order to prevent evaporation of the amide at the same time, the multi-stage heat treatment is performed in order from the solvent having the lowest boiling point among the solvents. That is, the laminate is first heat treated at 90 ° C. slightly higher than the boiling point of methyl ethyl ketone to evaporate the methyl ethyl ketone, and the second heat treatment is performed at 105 ° C. slightly higher than the boiling point of water to evaporate the water, After the third heat treatment to slightly higher 120 ℃ to evaporate the toluene, the fourth heat treatment to 163 ℃ slightly higher than the boiling point of dimethylformamide to evaporate the dimethylformamide, it is made of a bead-like structure formed with micropores, The ultraviolet-sensitive discoloration microcapsules 13 are dispersed in the bead-type structure to form the bead-type photochromic polyurethane resin layer 14.

Bead-type insensitive discoloration polyurethane resin layer 14 is configured as described above is fine pores are formed, moisture and air are effectively transmitted at the same time light is easily penetrated, UV ultraviolet ray discoloration in proportion to the intensity of the light penetrated The color of the microcapsules 13 may be rapidly changed to shield visible and ultraviolet rays.

With reference to the drawings and examples will be described in detail with respect to the adhesive film for producing a photosensitive fabric material of the present invention.

2, the adhesive film for producing a photosensitive textile material of the present invention includes a release paper.

The bead-type photochromic polyurethane resin layer 14 and the adhesive layer 12 are sequentially formed on one surface of the release paper 21 to form an adhesive film used to manufacture a photosensitive fabric material.

In addition, the adhesive film for producing a photosensitive textile material of the present invention includes a bead-type photochromic polyurethane resin layer is formed by dispersing ultraviolet-sensitive discoloration microcapsules in the bead-type polyurethane resin and laminated on the surface of the release paper.

Laminated on one surface of the release paper 21, micropores are formed to easily penetrate air and moisture, and at the same time rapidly discolored by light easily penetrating into the pores, UV-sensitive discoloration micro that can shield A bead type photochromic polyurethane resin layer 14 in which the capsule 13 is dispersed is formed.

UV-sensitive discoloration microcapsules 13 dispersed in the bead-type photochromic polyurethane resin layer 14 are formed by incorporating a photosensitive photochromic material that provides a color change effect by visible light and ultraviolet rays. It is configured to change color in proportion.

The bead type photochromic polyurethane resin layer 14 is a polyurethane composed of a solvent and water mixed solvent selected from two or more selected from the group consisting of hydrophilic polyurethane resins, ultraviolet photochromic microcapsules, methyl ethyl ketone, toluene and dimethylformamide. The UV-sensitive photochromic microcapsules 13 are formed on a bead-type polyurethane resin formed by applying a composition and heat-treating the solvents contained therein to evaporate the evaporated solvents in the order of evaporating solvents from the lowest boiling point. It is distributed and supported.

The bead-type photochromic polyurethane resin layer 14 is formed of fine pores, moisture and air are effectively transmitted at the same time, light is penetrated, and ultraviolet ultraviolet sensitive photochromic microcapsules 13 in proportion to the intensity of the penetrated light (13). ) Color changes quickly to shield visible and UV light.

In addition, the adhesive film for producing a photosensitive textile material of the present invention includes an adhesive layer formed by dispersing ultraviolet-sensitive discoloration microcapsules and laminating the surface of the bead-type photochromic polyurethane resin layer.

In order to adhere the bead-type photochromic polyurethane resin layer 14, which is a microporous structure, to the surface of the fabric layer 11, which is a fabric material, a knitted fabric material, and a nonwoven fabric material, in the present invention, the bead-type photochromic polyurethane resin layer ( The adhesive layer 12 is formed on the surface of 14).

Although the adhesive layer 12 may be configured using an adhesive of a known composition, the effect of constituting the adhesive layer 12 by melting and applying a synthetic resin such as polyurethane having adhesive strength to the health and environment of the worker It is preferable in that it can minimize.

Further, in order to further improve the light shielding and ultraviolet shielding effects of the photosensitive fabric material, the ultraviolet-sensitive discoloration microcapsules 15 are also dispersed in the adhesive layer 12 formed on the surface of the paper layer 11.

By the adhesive force of the adhesive layer 12 as described above, the bead-type photochromic polyurethane resin layer 14 is bonded to the paper layer 11 to form a photosensitive fabric material.

With reference to Examples, the manufacturing method of the adhesive film for photosensitive textile material manufacture of this invention is demonstrated in detail.

First, the production method of the adhesive film for producing a photosensitive textile material of the present invention is a mixed solvent of a solvent and water selected from two or more selected from the group consisting of hydrophilic polyurethane resins, UV-sensitive microcapsules, methyl ethyl ketone, toluene and dimethylformamide. Mixing to form a hydrophilic polyurethane composition.

Hydrophilic polyurethane resin among the polyurethane resins to form a bead-type photochromic polyurethane resin layer, which is a microporous structure in which beads made of hydrophilic polyurethane are bonded to each other to form a bead structure and UV-sensitive microcapsules are dispersed. The hydrophilic polyurethane composition is selected, and the hydrophilic polyurethane composition is formed by using UV-sensitive microcapsules and a solvent capable of dispersing the hydrophilic polyurethane resin, and the hydrophilic polyurethane composition is subjected to a multi-stage heat treatment under different temperature conditions. In order to form a urethane resin layer, the hydrophilic polyurethane composition is comprised by mixing three or more types of solvents from which the boiling point containing water essentially differs.

In addition, the manufacturing method of the adhesive film for producing a photosensitive textile material of the present invention includes the step of applying the hydrophilic polyurethane composition to the surface of the release paper to form a laminate.

Hydrophilic poly-resin comprising three or more solvents having different boiling points, including hydrophilic polyurethane resins, ultraviolet-sensitive discoloration microcapsules, essential water, and optionally various additives such as moisture permeability regulators, dispersants, thickeners and reaction catalysts as described above. A urethane composition is apply | coated to the surface of a release paper with fixed thickness, and a laminated body is formed.

In addition, the manufacturing method of the adhesive film for producing a photosensitive textile material of the present invention is a multi-stage to evaporate the solvent contained in the hydrophilic polyurethane composition by heat-treating the laminate, in order of evaporating solvent from the lowest boiling point solvent Performing heat treatment to form a bead type resin laminate.

The hydrophilic polyurethane resin and UV-sensitive microcapsules are used to form a bead-type photochromic polyurethane resin layer, which is a microporous structure in which beads of hydrophilic polyurethane are bonded to each other to form a bead structure and UV-sensitive microcapsules are dispersed. The polyurethane composition comprising a mixture of a solvent, water and water should be applied to the surface of the release paper and subjected to multi-stage heat treatment at different temperature conditions to evaporate the solvent sequentially.

Specifically, a hydrophilic polyurethane resin and UV-sensitive microcapsules are mixed with a mixture of at least two solvents selected from methyl ethyl ketone, toluene and dimethyl formamide, and a water solvent to form a hydrophilic polyurethane composition by uniformly stirring. The hydrophilic polyurethane composition is applied to the surface of the release paper rather than the solvents, and heat-treated at the boiling point temperature of the solvents contained in the hydrophilic polyurethane composition, in the order of the solvent having a higher boiling point from the solvent having the lowest boiling point among the solvents. By performing a multi-stage heat treatment, a bead-type color fading polyurethane resin layer having a microporous structure is formed on the surface of the release paper.

In addition, the manufacturing method of the adhesive film for producing a photosensitive textile material of the present invention is coated with an adhesive film laminated by applying a synthetic resin melt mixed with ultraviolet-sensitive discoloration microcapsules on the surface of the bead-type color fading polyurethane resin layer of the bead-type resin laminate Forming a sieve is included.

Adhesive layer on the surface of the bead type photochromic polyurethane resin layer of the bead type resin laminate in order to adhere the bead type photochromic polyurethane resin layer, which is a microporous structure, to the surface of the fabric layer, the fabric material, and the non-woven fabric layer. To form.

That is, the synthetic resin such as polyurethane is melted, and the ultraviolet-sensitive discoloration microcapsules are mixed to form a synthetic resin melt, and the synthetic resin melt is coated on the surface of the bead-type photochromic polyurethane resin layer of the bead-type resin laminate to form an adhesive layer. To form the included adhesive film laminate.

In addition, the manufacturing method of the adhesive film for producing a photosensitive fabric material of the present invention includes the step of slowly cooling the adhesive film laminate at room temperature.

The adhesive film laminated body having the bead-type color fading polyurethane resin layer and the adhesive layer is gradually cooled to room temperature to prepare an adhesive film for producing a photosensitive fabric material of the present invention.

After the adhesive layer of the adhesive film for photosensitive fabric material manufacturing is faced to the surface of the forge and bonded by heat pressing with a calender or the like, the release paper of the adhesive film for photosensitive fabric material manufacturing is detached to prepare a photosensitive fabric.

The manufacturing method of the adhesive film for photosensitive textile material manufacture by this invention is demonstrated in detail with reference to a specific Example. However, the following examples are only for illustrating the present invention in detail, and do not limit the present invention in detail.

<Example>

1. 100 parts by weight of hydrophilic polyurethane resin powder (manufactured by Cytec), 13 parts by weight of UV-sensitive microcapsules (product made by Polychrome), 40 parts by weight of purified water, 10 parts by weight of methyl ethyl ketone, and 10 parts by weight of toluene are mixed and stirred. A hydrophilic polyurethane composition was formed.

2. The hydrophilic polyurethane composition was applied to the surface of the polypropylene resin-coated release paper as a substrate, and applied with a gamma knife coater to form a laminate in which the thickness of the hydrophilic polyurethane composition was adjusted to 20 μm.

3. The laminate was first heat-treated at 90 ° C. for 10 seconds, slightly above the boiling point of methyl ethyl ketone, to evaporate the methyl ethyl ketone, and secondly heat-treated at 105 ° C. for 30 seconds, slightly above the boiling point of water, to evaporate the water. , Toluene was evaporated by tertiary heat treatment at 120 ° C. for 30 seconds, slightly higher than the boiling point of toluene, thereby forming a bead-type resin laminate in which the bead-sensitive color-sensitive polyurethane resin layer was laminated on the surface of the release paper.

4. Applying a synthetic resin melt composed of 100 parts by weight of polyurethane (manufactured by Cytec) and 4.25 parts by weight of ultraviolet-sensitive discoloration microcapsules (manufactured by Polychrome) on the surface of the bead-type discolored polyurethane resin layer of the bead-type resin laminate. To form an adhesive film laminate.

5. The adhesive film laminate was slowly cooled to room temperature to prepare an adhesive film for producing a photosensitive fabric material.

6. After the adhesive layer of the adhesive film for photosensitive fabric material manufacturing was faced to the surface of the forge and bonded by heat pressing with a calender, the release paper of the adhesive film for photosensitive fabric material manufacturing was detached to prepare a photosensitive fabric.

The photosensitive fabric manufactured as described above is easily transmitted through air and moisture to the micropores of the polyurethane resin layer, and the UV-sensitive discoloration microcapsules rapidly discolor in proportion to the intensity of light penetrating directly into the micropores. UV protection can effectively protect the human body.

1 is a cross-sectional view of the photosensitive fabric material according to the present invention

Figure 2 is a cross-sectional view of the adhesive film for producing a photosensitive fabric material according to the present invention

* Explanation of symbols for the main parts of the drawings

11: Forge layer 12: Adhesive layer

13: UV-sensitive discoloration microcapsules 14: polyurethane resin layer

15: UV-sensitive discoloration microcapsules 21: Release paper

Claims (4)

Forge layer of a material selected solely from the group consisting of woven, knitted, non-woven fabrics; An adhesive layer formed by laminating on a surface of the forge layer; UV-sensitive discoloration microcapsules are dispersed in the bead-type polyurethane resin and comprises a bead-type photochromic polyurethane resin layer formed by laminating on the surface of the adhesive layer, The bead-type photochromic polyurethane resin layer comprises a polyurethane composition comprising a solvent and water mixed solvent selected from the group consisting of hydrophilic polyurethane resin, ultraviolet photochromic microcapsules, methyl ethyl ketone, toluene, and dimethylformamide. The UV-sensitive photochromic microcapsules are dispersed and supported in a bead-type polyurethane resin formed by evaporating the solvents by coating and heat-treating, and evaporating the contained solvents in order from the lowest boiling solvent to the highest boiling solvent. Photosensitive fabric material characterized in that. The photosensitive fabric material according to claim 1, wherein the ultraviolet-sensitive discoloration microcapsules are dispersed in the adhesive layer. Release paper; UV-sensitive discoloration-colored polyurethane resin layer is dispersed in the bead-type polyurethane resin and laminated on the surface of the release paper; A photosensitive adhesive film for producing a photosensitive textile material comprising an adhesive layer formed by laminating a surface of the bead-type photochromic polyurethane resin layer in which ultraviolet-sensitive discoloration microcapsules are dispersed. Forming a hydrophilic polyurethane composition by mixing a mixture of at least two solvents selected from the group consisting of hydrophilic polyurethane resins, UV-sensitive microcapsules, methyl ethyl ketone, toluene, and dimethyl formamide and a solvent; Applying the hydrophilic polyurethane composition to a surface of a release paper to form a laminate; Heat treating the laminate to evaporate solvents contained in the hydrophilic polyurethane composition, and performing a multi-stage heat treatment to evaporate solvents having the highest boiling point from the lowest boiling solvent to form a bead type resin laminate; Forming an adhesive film laminate by applying a synthetic resin melt in which UV-sensitive microcapsules are mixed to the surface of the bead-type photochromic polyurethane resin layer of the bead-type resin laminate; And The method of manufacturing a photosensitive adhesive film for producing a photosensitive fabric material comprising the step of slowly cooling the adhesive film laminate at room temperature.

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