KR20150046401A - Reflective fabric and method for preparing same - Google Patents

Abstract

In addition to excellent light reflection effect, the present invention exhibits an excellent fastness to a substrate without a separate adhesive layer, and can be patterned and dyed by a sublimation transfer at a high temperature, without fear of discoloration or combustion due to increase in heat resistance. A reflective fabric having a remarkably improved sense of touch and a method of manufacturing the same are provided.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a reflective fabric,

The present invention, together with an excellent light reflection effect, exhibits an excellent fastness to a substrate without a separate adhesive layer, and an increase in heat resistance enables a printing process for pattern formation and dyeing, particularly a high temperature sublimation transfer process, The present invention relates to a reflective fabric having a remarkably improved touch feeling and a manufacturing method thereof.

Various reflectors having a light reflection function are used for a part where visibility is required, such as a sign of specific information or an indication of design, in a safety garment, a fire suit, a safety article, a sports garment, a shoe or other decorative article.

Conventionally, a reflector for reflecting light is directly attached to a part of clothes. However, such a light reflector itself is expensive, and it is difficult to exert a sufficient recognition function because it is partially used and attached. In addition, the clothes themselves become too heavy, causing inconveniences in the work.

In order to solve such a problem, a method of applying a light-emitting paint has been proposed. However, in this case, since the light emitting paint is partially applied, a rectangular area can be visually formed, and as a result, it is difficult to exhibit sufficient visibility. Since the luminescent material to be used is a dolomite material or contains a phosphorescent material or the like, a high luminous effect can be obtained at a distance close to the light source. However, visibility at a certain distance or more, There is a problem that it is degraded.

As another method, a method of using a retroreflective function of a glass bead or a microprism has been proposed. Retroreflective reflects the light in the direction of the light source regardless of the direction from which the light enters in any direction, so it has the advantage of showing excellent visibility even at night or in the dark. Accordingly, the method has been mainly used for sign boards for roads with severe bending, nighttime road sign boards, nighttime work clothes, safety garments, and firefighter uniforms. Glass beads are used in various ways because of their excellent retroreflective properties and excellent workability.

However, since the surface of the glass bead or the microprism is directly exposed to the outside, the method using the glass bead or the micro prism lacks physical durability and is liable to be damaged or detached when friction or impact occurs. There is a problem that the retroreflective function and the aesthetic property are deteriorated.

The reflection portion or the reflection layer using glass beads or micro prisms may be formed by attaching a glass bead or a microprism using a resin adhesive or by using a reflection sheet in which glass beads or micro prisms are formed in a predetermined pattern, And then thermally transferring the substrate to be formed. However, in the case of the method using an adhesive, there is a concern that harmful substances are generated due to the use of the adhesive, and the light reflection function is deteriorated due to discoloration of the adhesive itself. Further, in the case of a thermal transfer method, heat treatment is performed at a high temperature of 100 ° C or more. However, there is a problem that when the substrate on which the reflective portion or the reflective layer is formed is cotton, nylon, silk or mille, the fabric is burned or discolored. Further, in the case of a method of forming a reflective portion or a reflective layer by using glass beads or microprisms, it is difficult to perform a subsequent dyeing step or pattern forming step due to low workability of glass beads or microprisms, and there is a problem that the fastness is low .

Korean Patent Publication No. 2002-0096570 (published on December 31, 2002)

The present invention, together with an excellent light reflection effect, exhibits an excellent fastness to a substrate without a separate adhesive layer, and an increase in heat resistance enables a printing process for pattern formation or dyeing, particularly a sublimation transfer process at high temperature The present invention also provides a reflective fabric having a significantly improved touch feeling and a method of manufacturing the same.

According to an aspect of the present invention, there is provided a reflective fabric comprising a substrate, a reflective layer formed on at least one side of the substrate, and a print layer disposed on the reflective layer, Wherein the reflective layer comprises at least one kind of reflector selected from the group consisting of glass beads and micro prisms and a water-soluble anionic polymer.

In the above-described reflective fabric, the reflector may have a refractive index of 1.9 to 2.2 and a transparency of 98% or more.

The glass beads may be spherical particles having an average particle diameter of 30 to 70 mu m.

The reflector may include 0.01 to 10 parts by weight of microprism with respect to 100 parts by weight of glass beads.

The water-soluble anionic polymer may be a water-soluble polyacrylic resin containing a molecular anionic functional group, a polyurethane resin, a polyvinyl alcohol resin, a polyvinyl acetate resin, a polyethylene oxide resin, a polypropylene oxide resin, A polymer composed of a silicon-containing polymer including polyethyleneglycol-based resin, polyacrylamide-based resin, ethylcellulose-based resin, chitosan, chitin, polyamide-based resin, polycarbonate-based resin, polydimethylsiloxane, derivatives thereof, And the anionic functional group may be selected from the group consisting of a hydroxyl group, a carboxylic acid group and a sulfonic acid group.

The water-soluble anionic polymer may be contained in an amount of 30 to 100 parts by weight based on 100 parts by weight of the reflector.

The reflective layer may have a thickness not less than the maximum particle diameter of the reflector and not more than three times the reflector average particle diameter.

The reflective layer may further contain 0.001 part by weight or less of carbon component based on 100 parts by weight of the reflector.

The reflective fabric may have a wash fastness of 4 to 5, a dry cleaning fastness of 4 to 5, and a fastness to rubbing of 4 to 5.

According to another embodiment of the present invention, there is provided a method of producing a reflective layer, comprising: preparing a composition for forming a reflective layer by mixing at least one kind of reflector selected from the group consisting of glass beads and micro prisms, a water-soluble anionic polymer and a thickener; Forming a coating film of a composition for forming a reflective layer by coating the composition for forming a reflective layer on at least one side of the substrate; Drying the coating film to form a reflective layer; Forming a print layer on the reflective layer by printing a color or pattern printed print sheet with a dye and then printing a dye or dye on the reflective layer, And separating and removing the printed sheet.

The composition for forming a reflective layer may comprise 30 to 100 parts by weight of a water-soluble anionic polymer and 0.1 to 20 parts by weight of a thickener based on 100 parts by weight of the reflector.

The composition for forming a reflective layer may further contain 0.001 part by weight or less of carbon component based on 100 parts by weight of the reflector.

The composition for forming a reflective layer may include a solvent selected from the group consisting of water, a lower alcohol having 1 to 5 carbon atoms, and a mixture thereof.

The composition for forming a reflective layer may further include an additive selected from the group consisting of a dispersing agent, a curing agent, an ultraviolet absorber, a yellowing inhibitor, a light diffusing agent, a surfactant, an antistatic agent, a precipitation inhibitor and a mixture thereof.

The composition for forming a reflective layer may have a viscosity of 4200 to 4800 cps.

The drying may be carried out in three stages: a primary drying step at 60 to 130 ° C, a secondary drying step at 40 to 120 ° C, and a tertiary low temperature drying step at a temperature of 40 ° C or lower. Further, a fourth high temperature drying process at a temperature of 160 to 210 DEG C can be further carried out.

The printing can be carried out by a transfer process applying a pressure of 3 to 6 kgf at a temperature of 160 to 230 ° C.

Other details of the embodiments of the present invention are included in the following detailed description.

The reflective fabric according to the present invention includes a reflective layer containing glass beads and a water-soluble anionic polymer, and exhibits excellent light reflection effect, exhibits an excellent fastness to a substrate without a separate adhesive layer, The present invention enables a printing process for pattern formation or dyeing, in particular, a high temperature sublimation transfer process, without any concern about the occurrence of the problem, and also has a significantly improved feeling of touch. Accordingly, the reflective fabric is useful as a variety of articles requiring visibility or design due to the light reflection effect of the reflective layer, specifically, a display panel, a safety garment, and a fabric for night work.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a conceptual diagram schematically showing a composite processing apparatus according to an embodiment of the present invention; FIG.
Fig. 2 is a schematic view showing the pretreatment unit shown in Fig. 1; Fig.
3 is a schematic view showing the first coupling unit shown in Fig.
Fig. 4 is a schematic view showing the drying unit shown in Fig. 1; Fig.
5 is a schematic view showing the second coupling unit shown in Fig.
6 is a schematic view showing the transfer unit shown in Fig.

Hereinafter, embodiments of the present invention will be described in detail. However, the present invention is not limited thereto, and the present invention is only defined by the scope of the following claims.

According to an embodiment of the present invention, there is provided a reflective fabric comprising a base material, a reflective layer formed on at least one side of the base material, and a print layer disposed on the reflective layer and including a dye exhibiting a pattern or hue, And at least one kind of a reflector and a water-soluble anionic polymer selected from the group consisting of micro-prisms.

The substrate may be a natural woven or knitted fabric such as cotton, hemp, dog, wool, etc., or may be a synthetic fabric or knitted fabric with nylon, polyurethane, polyester, rayon and the like.

The thickness of the base material is not particularly limited and can be suitably adjusted according to the use of the fabric.

On at least one side of the substrate is a reflective layer comprising a reflector and a water-soluble anionic polymer. Further, the reflective layer may contain a carbon component.

Specifically, the reflective layer is prepared by applying a composition for forming a reflective layer including a reflector and a water-soluble anionic polymer to a substrate, followed by drying to remove the solvent. In the case of a conventional reflective layer forming method in which a coating film of a composition for forming a reflective layer is subjected to heat treatment at a high temperature, the resin component is removed from the finally prepared reflective layer. However, in the embodiment of the present invention, The polymer will remain. In addition, crosslinking between the water-soluble anionic polymer is formed along with removal of the solvent to form a network structure. As a result, the glass beads are dispersed in the network structure. The network structure of the water-soluble anionic polymer thus formed not only exhibits an excellent adhesion to the substrate and the glass bead due to the interaction between the anionic functional group and the substrate and the glass bead but also stably fixes the glass bead in the reticulated structure, The dropout of the glass beads can be remarkably reduced during the production of the glass beads.

In such a reflective layer, a reflector such as a glass bead serves to retroreflect the light incident from the outside in the reflective layer. Accordingly, it is preferable that the reflector has a high refractive index and a high transparency so as to exhibit excellent retroreflective efficiency.

Specifically, the reflector preferably has a refractive index of 1.9 or more, and more preferably has a refractive index of 1.9 to 2.2. When the refractive index of the reflector is within the above range, a focus is formed at the inner wall of the reflector to exhibit a high focus reflectance, and as a result, the retroreflectivity is high. However, when the refractive index is out of the above range and is less than 1.9, the focus reflectance is lowered, and as a result, the retroreflectivity is lowered.

It is also preferable that the reflector has a light transmittance of 98% or more. When the light transmittance is as described above, the light reflectance increases. However, when the light transmittance is less than 98%, the amount of absorbed light increases and the retroreflectivity may be lowered.

The refractive index and the light transmittance of the reflector are determined according to the composition, shape or grain size of the glass bead, and the above characteristics also affect the adhesion of the reflector to the substrate and the durability of the reflector itself.

Accordingly, the glass bead satisfies the above-mentioned refractive index and light transmittance, and considering the adhesive force to the substrate and the durability of the glass bead itself, the glass bead preferably has a spherical shape, Lt; / RTI >

Also, the glass beads having an average particle diameter of 30 to 70 占 퐉 may be preferable because they exhibit an excellent refractive index, exhibit a low degree of desalination to the substrate, and exhibit excellent durability against external physical and chemical stimuli. If the average particle diameter of the glass beads is less than 30 占 퐉, the refractive index may be lowered. If the average particle diameter of the glass beads exceeds 70 占 퐉, the coating workability and adhesion to the substrate may decrease. The glass beads may also be a mixture of two or more kinds of glass wines having different average particle diameters within the above-mentioned average particle diameter range.

Normally, glass beads are made of an oxide of an alkali metal such as NaO, K ₂ O, an oxide of an alkaline earth metal such as MgO, CaO and the like, an aluminum oxide such as Al ₂ O ₃ , etc., in addition to a silica (Al ₂ O ₃ ) And an inorganic metal oxide component as a remaining amount. While the dual inorganic metal oxide component increases the durability of the glass beads, the transparency and the refractive index of the glass beads may be lowered when contained in a large amount because of inherent color. Accordingly, in order to ensure proper self-durability of the glass beads while satisfying the refractive index and transparency described above, it is preferable that the glass beads include the inorganic metal oxide component in an amount of 20 to 25% by weight based on the total weight of the glass beads have.

Micro-prisms have better light reflection efficiency than glass beads, but have low adhesion to substrates due to their unique shape. On the other hand, the glass bead has a lower light reflection efficiency than the microprism, but has a spherical shape and can exhibit more stable adhesion to the substrate than glass beads. Accordingly, glass beads or microprisms may be used alone or in combination as the reflector. In addition, when glass beads and micro prisms are mixed and used, it is possible to simultaneously improve the light reflection efficiency and the adhesive force by adjusting the mixing ratio. Specifically, the micro-prism may be used in an amount of 0.01 to 10 parts by weight based on the total weight of the glass beads. If the content of the microprism to the glass bead is too high, that is, if it exceeds 10 parts by weight, the content of the microprism desorbed from the reflective layer increases, and the light reflection efficiency may be lowered compared with the amount of use of the microprism. May be deteriorated. On the other hand, when the amount of microprism to be used is too small, specifically less than 0.01 part by weight, the effect of improving the reflection of light due to the use of microprisms may be insignificant.

The reflector may be a surface treated with a compound containing a silane group or an amino group for the purpose of increasing the refractive index, enhancing the durability, and improving the adhesion to the substrate. Specific examples thereof include silane compounds such as 3-aminopropyltriethoxysilane, aminoethylaminopropyltriethoxysilane, aminoethylaminopropyltrimethoxysilane, butanol-preaminoethylaminopropyltrimethoxysilane, and the like, or amine compounds Or the like, it may be preferable to increase the adhesive force to the substrate. At this time, the surface treatment method for the glass beads can be carried out according to a conventional method.

The reflective layer may be formed by patterning the reflector in an arbitrary form. When the patterned reflector is included, the pattern of the glass bead itself is projected irrespective of the pattern or color in the print layer located on the upper surface during the flash irradiation, thereby achieving a dual visibility effect.

In addition, the water-soluble anionic polymer in the above-mentioned reflective layer increases the adhesive force of the reflector to the substrate and increases the heat resistance of the reflective layer, so that the transfer efficiency at the high temperature for subsequent dyeing and pattern formation, To enable dyeing and pattern formation. Accordingly, as the water-soluble anionic polymer usable in the present invention, it is preferable that the water-soluble anionic polymer having transparency, excellent bonding force with the reflector, and strong physical and chemical durability.

The water-soluble anionic polymer specifically includes water-soluble polyacrylic resin (polyacrylic acid, polymethyl methacrylate, polyhydroxyethyl methacrylic acid, etc.) containing a molecular anionic functional group, polyurethane Based resin, polyvinyl alcohol-based resin, polyvinylacetate-based resin, polyethylene oxide-based resin, polypropyleneoxide-based resin, polyethylene glycol resin, polyacrylamide resin Based resin, polyacrylamide-based resin, ethylcellulose-based resin, chitosan, chitin, polyamide-based resin, polycarbonate-based resin, polydimethylsiloxane (PDMS) Containing polymer, and derivatives thereof, but are not limited thereto. The water-soluble anionic polymer may be used singly or in combination of two or more.

The anionic functional group may specifically be a hydroxyl group, a carboxylic acid or a salt thereof, a sulfonic acid or a salt thereof, and the like.

The water-soluble anionic polymer may be contained in the reflective layer in an amount of 30 to 100 parts by weight based on 100 parts by weight of the reflector. When the content of the polymer to the reflector is too low, specifically less than 30 parts by weight, the adhesive strength of the glass bead to the substrate is reduced and the effect of improving the heat resistance of the reflective layer is insignificant. There is a possibility of damage. On the other hand, when the content of the polymer to the reflector is excessively high, specifically, when it exceeds 100 parts by weight, the refractive index may be lowered due to the relatively low reflector content.

Further, the reflective layer may further include a residual carbon component used in forming the reflective layer.

In forming the reflective layer, the carbon component may be selectively mixed with the composition for forming a reflective layer after being dissolved in a solvent, and may be present in a trace amount in the reflective layer. The residual carbon component can act as a light absorber that blocks diffused light in the reflective layer and transmits only light in a specific direction. In addition, the carbon component can suppress the generation of static electricity and prevent the reflector from being damaged or dropped off due to static electricity or friction, thereby improving the fastness. However, it is preferable that the residual amount is less than 0.001 part by weight based on 100 parts by weight of the reflector, because it can reduce the light reflection effect of the reflector when remaining excessively.

The carbon component may be carbon black, acetylene black, denka black, super-P, Ketjen black, or the like.

The size and shape of the carbon component are not particularly limited, but it may be preferable to have a spherical particle shape in view of adhesion to a substrate, and more specifically, a spherical particle having an average particle diameter of 30 to 70 탆 May be more preferable.

The thickness of the reflective layer having the above-described structure may vary depending on the kind of the substrate and the use of the fabric, but it may be more preferably not more than the maximum particle diameter of the reflector and not more than three times the reflector average particle diameter. When the thickness of the reflective layer is smaller than the maximum particle diameter of the reflector beyond the above-mentioned range, the coating process is difficult. On the other hand, when the thickness exceeds 3 times the reflector average particle diameter, the refractive index may decrease.

Also, the content of the reflector included in the reflective layer can be appropriately adjusted depending on the use of the reflective fabric. Specifically, considering the physical properties of the reflector and the adhesive strength to the substrate, the composition for forming a reflective layer is applied in an amount such that the reflector is contained in an amount of 30 to 85 g / m ² to the substrate after the final production desirable. When the content of the reflector is less than 30 g / m ² , the content of the reflector is too low to obtain a sufficient reflection effect. On the other hand, when the content of the reflector exceeds 85 g / m ² , the dropout rate of the reflector becomes high.

A print layer is located on the reflective layer.

The print layer may comprise dyes which are formed by a conventional printing process, in particular by transfer, from a printed sheet comprising a printable layer of a sublimable dye which exhibits a pattern or color, and which exhibit a pattern or color.

The dye can be used without any particular limitation as long as it is usually used in a printing process, but a sublimable dye may be more preferable considering the characteristics of the fabric according to the present invention, which exhibits excellent effects on sublimation transfer. Specifically, the sublimable dye may be a disperse dye or an oil-soluble dye having sublimation properties, and more specifically, a disperse dye or an oil-soluble dye that sublimates or evaporates under atmospheric pressure at 70 to 260 ° C.

Examples of the disperse dye include azo, anthraquinone, quinophthalone, styryl, di or triphenylmethane, oxazine, triazine, xanthene, methine, azomethine, acridine and diazine. Examples of the yellow disperse dye include CI Disperse Yelow 51, 54, 60, 64, 65, 82, 98, 119, 160 and 211. Examples of the red based disperse dyes include C.I. Disperse Red 4, 22, 55, 59, 60, 146, 152, 191, 302, Vat Red 41 and the like. Examples of the blue disperse dye include CI Disperse Blue 14, 28, 56, 60, 72, 73, 77, 334, 359, 366 and the like. Other color components include Violet 27, 28 and the like. Examples of the usable dyes include C.I. Solvent Orange 25, 60, Red 155, Blue 35, 36, 97, 104 and the like. They may be used alone or in combination of two or more.

The reflective fabric having the above-described structure may be prepared by mixing at least one kind of reflector selected from the group consisting of glass beads and micro prisms, a water-soluble anionic polymer and a thickener to prepare a composition for forming a reflective layer (step 1); Forming a coating film of a composition for forming a reflective layer by coating the composition for forming a reflective layer on at least one side of the substrate (step 2); Drying the coating film to form a reflective layer (step 3); Forming a print layer (step 4) by printing a color or a pattern printed print sheet on the reflective layer with a dye and then printing a dye or a dye showing the pattern or color of the print sheet on the reflective layer; And separating and removing the printed sheet (step 5). At this time, the mechanical devices of FIGS. 1 to 6 may be used to fabricate the fabric using the composition for forming a reflective layer.

Fig. 1 is a schematic view of a composite processing apparatus capable of successively fabricating a fabric and simultaneously performing sublimation transfer onto a reflective article, Fig. 2 is a schematic diagram showing the preprocessing unit shown in Fig. 1, Fig. 4 is a schematic view showing the first coupling unit shown in Fig. 1, Fig. 4 is a schematic view showing the drying unit shown in Fig. 1, Fig. 5 is a schematic view showing the second coupling unit shown in Fig. Fig. 2 is a schematic view showing the transfer unit shown in Fig. 1 to 6, the composite processing apparatus 1 includes a reflection layer forming unit 20, a first coupling unit 30, a drying unit 40, a second coupling unit 50, and a transfer unit 60 ). Each of the units 20, 30, 40, 50 and 60 is installed and connected to the frame 3. However, each of the units 20, 30, 40, and 50 including the transfer unit 60 may be installed in a separate housing separate from the frame 3 and connected through a medium. The composite processing apparatus 1 can process a composite (such as paper, fiber, leather, and industrial film) with processes such as pre- and post-treatment coating, laminating, laminating, drying, flame retarding,

Referring to FIGS. 1 to 6, each step will be described in detail. Step 1 is a step for preparing a composition for forming a reflective layer.

Specifically, the composition for forming a reflective layer can be prepared by mixing a thickener with a solvent together with the above-described reflector and a water-soluble anionic polymer. At this time, the mixing order of the above materials is not particularly limited.

The reflector is the same as described above.

As described above, the water-soluble anionic polymer may also be a water-soluble polyacrylic resin (polyacrylic acid, polymethyl methacrylate, polyhydroxyethyl methacrylic acid, etc.) containing an anionic functional group in the molecule, Based resin, a polyurethane resin, a polyvinyl alcohol resin, a polyvinylacetate resin, a polyethylene oxide resin, a polypropylene oxide resin, a polyethyleneglycol resin, a poly (ethylene glycol) A resin such as a polyacrylamide resin, an ethylcellulose resin, a chitosan, a chitin, a polyamide resin, a polycarbonate resin, and a polydimethylsiloxane (PDMS) Containing polymer, and a derivative thereof, and at least one member selected from the group consisting of .

The water-soluble anionic polymer is used in a form dispersed in an aqueous dispersion medium such as water. The dispersion of the water-soluble anionic polymer may be commercially available or may be obtained by mixing anionic monomer with other anionic comonomers or non- By copolymerization with a comonomer, or by charging with an anionic functional group after polymerization.

The polymerization of the monomers may be carried out according to conventional polymerization methods including solutions, bulk, precipitates, dispersions, suspensions, emulsions, microemulsions and the like.

As the anionic monomer, acrylic acid, methacrylic acid, or a vinyl compound may be used. Examples of the anionic functional group include a hydroxy group, a carboxylic acid or a salt thereof, a sulfonic acid or a salt thereof, and the like.

For example, an anionic polyvinyl alcohol-based or polyvinyl acetate-based resin can be obtained by dispersing an anionic water-soluble vinyl monomer and a non-ionic water-soluble vinyl monomer in a salt aqueous solution in the presence of a stabilizer of an anionized water- ≪ / RTI > can be prepared.

When used in the form of a dispersion, it may be desirable to use a dispersion of a water-soluble anionic polymer in an amount such that the water-soluble anionic polymer is included in an amount of 30 to 100 parts by weight based on 100 parts by weight of the reflector, based on the weight of the solid.

Further, the thickener improves the coating property of the substrate by controlling the viscosity characteristics of the composition for forming a reflective layer, and improves the dispersibility of the glass beads in the formed reflective layer and the uniformity of the reflective layer thickness.

Specific examples of the thickening agent include hydroxypropylmethyl cellulose (HPMC), hydroxyethylmethyl cellulose (HEMC), ethylhydroxyethyl cellulose (EHEC) and carboxymethyl cellulose (CMC). ), But the present invention is not limited thereto. These may be used singly or in combination of two or more.

The thickener may be included in an amount of 0.1 to 20 parts by weight based on 100 parts by weight of the reflector. Concretely, when the content of the thickener for the reflector is less than 0.1 part by weight, the composition for forming a reflective layer becomes high in viscosity, and the coating process is not easy, and the processability of forming the reflective layer is lowered and the thickness uniformity of the reflective layer is lowered On the other hand, if the content of the thickener for the reflector is excessively high, specifically more than 20 parts by weight, the flowability of the composition for forming a reflective layer will be excessively increased, resulting in a decrease in the fairness.

In the production of the composition for forming a reflective layer, a carbon component may be further added. The carbon component may be included in an amount of 0.1 to 10 parts by weight based on 100 parts by weight of the reflector. If the content of the carbon component with respect to the reflector is too low, specifically, if it is less than 0.1 part by weight, it is difficult to suppress the diffuse reflection and the light absorption effect according to the use of the carbon component and to suppress the generation of static electricity. If the amount is more than 10 parts by weight, the content of the reflector is relatively decreased, and the light reflecting effect may be deteriorated.

The above-mentioned carbon component can be used by dissolving in a solvent. Accordingly, the content of the carbon component may be 0.1 to 10 parts by weight based on 100 parts by weight of the reflector based on the weight of the solid content.

The composition for forming a reflective layer is prepared by dispersing or dissolving the above components in a solvent. Examples of the solvent usable herein include water; For example, a lower alcohol having 1 to 5 carbon atoms such as methanol, ethanol and the like.

The solvent may be included in an amount such that the composition for forming a reflective layer has an appropriate viscosity in consideration of the refractive index of the reflective layer and the processability in forming the reflective layer. Specifically, in consideration of the refractive index and transparency of the reflector, the composition for forming a reflective layer preferably has a viscosity of 4200 to 4800 cps. For this purpose, the solvent may be included in an amount of 30 to 60 parts by weight based on 100 parts by weight of the reflector.

In addition to the above-mentioned components, the composition for forming a reflective layer may further include conventional additives for the purpose of enhancing the effect of the microprism and the reflective layer described above. Concretely, a dispersant, a curing agent, an ultraviolet absorber (for example, a triazine-based ultraviolet absorber, a benzotriazole-based ultraviolet absorber and the like) for increasing the dispersibility of the reflector or the carbon component in the composition for forming a reflective layer, (For example, calcium carbonate, calcium phosphite, etc.), a surfactant, an antistatic agent, or an anti-settling agent for glass beads. Among these, one kind or two kinds Or mixtures thereof.

Examples of the dispersing agent include, but are not limited to, tricalcium phosphate, trisodium phosphate, magnesium phosphate, magnesium pyrophosphate, and the like. Commercially available dispersants may also be used. Specific examples thereof include BYK-JET (TM) 9170 (manufactured by BYK).

Also among the above dispersing agents, wetting and dispersing agents may be preferred.

The dispersing agent may be included in an amount of 0.1 to 10 parts by weight based on 100 parts by weight of the glass beads. When the content of the dispersant in the glass beads is too low, the effect of the addition of the dispersant is small. On the other hand, when the content of the dispersant in the glass beads is excessively high, the residual dispersant in the finally prepared reflective layer acts as an impurity, It is not preferable.

The composition for forming a reflective layer according to the present invention may further comprise a composition for forming a one-pack type reflective layer, and optionally a curing agent.

As the curing agent, various curing agents having an isocyanate group, an epoxy group and an aziridine group may be used depending on the kind of the polymer. These reactive groups react with the hydroxyl group, amino group, carboxyl group and the like contained in the polymer to cure into a crosslinked structure. Accordingly, when a polyacrylic resin is used as the polymer, it is preferable that an isocyanate free from yellowing is used as a curing agent.

As the surfactant, an anionic surfactant, a nonionic surfactant, a high-molecular surfactant, etc. may be used alone or in combination of one or more. Examples of the anionic surfactant include formalin condensates of naphthalenesulfonic acid salts, ligninsulfonic acid salts, formalin condensates of special aromatic sulfonic acid salts (formalin condensates of sodium alkylnaphthalenesulfonate and sodium naphthalenesulfonate such as butylnaphthalene, sodium cresylsulfonate and 2-naphthol -6-sodium sulfonate, formalin condensate of sodium cresyl sulfonate, etc.), polyoxyethylene alkyl ether sulfate, and the like. Examples of the nonionic surfactant include polyoxyethylene sorbitan fatty acid esters, polyoxyethylene alkyl ethers, polyoxyethylene alkyl phenyl ethers, polyoxyethylene acetylene glycols, polyoxyethylene derivatives, and oxyethylene / oxypropylene block copolymers. have.

Examples of the polymeric surfactant include polyacrylic acid partial alkyl ester, polyalkylene polyamine, polyacrylic acid salt, styrene-acrylic acid copolymer, vinylnaphthalene-maleic acid copolymer and the like.

In order to increase the dispersion of the water-soluble anionic polymer and the reflector after mixing the above materials, a step of adjusting the pH to a range of 6 to 8 by further adding a small amount of an acidic or basic solution to the composition for forming a reflective layer is further carried out .

Further, in order to increase the solubility in the solvent and increase the dispersion of the reflector, a homogeneous mixing process using an ultrasonic machine, a homogenous mixer, or the like may be selectively performed after mixing of each component or after pH adjustment.

Step 2 is a step of forming a coating film of the composition for forming a reflective layer by coating the composition for forming a reflective layer prepared in the step 1 on at least one side of the substrate.

At this time, the above description is the same as described above.

The application step of the composition for forming a reflective layer on the substrate may be carried out according to a conventional method. Specifically, a coating method such as reverse, gravure, comma coater, spray, slit coating, bar coating, or knife coating, roll coating, Lt; / RTI >

The thickness of the reflective layer formed according to the coating process varies depending on the particle diameter of the reflector. The thickness of the reflective layer after drying is not less than the maximum particle diameter of the reflector used, Or less by weight.

Specifically, in the composite processing apparatus for fabricating the raw fabric shown in FIG. 1, the composition for forming a reflective layer prepared in step 1 is placed in a container 22, and a substrate to which a composition for forming a reflective layer is to be applied is placed on the first substrate supply unit 10, And supplies it to the mesh roller 21a and the first pressure roller 21b.

The reflective layer forming unit 20 is provided on the frame 3 and includes a first substrate supplying portion 10, a mesh roller 21a, a first pressing roller 21b, a container 22, a first knife 23, A second pressure roller 25 and a cleaning knife 27. [

The first substrate supplying portion 10 supplies the first substrate 2a with a mesh roller 21a and a first pressing roller 21b, for example, paper, fiber, leather, or industrial film. The mesh roller 21a and the first pressure roller 21b rotate with the first medium 2a interposed therebetween. When either one of the mesh roller 21a and the first pressure roller 21b receives the power and is rotated, the remaining mesh roller 21a and the first pressure roller 21b may rotate together or the two rollers 21a and 21b may receive power respectively .

The mesh roller 21a may be made of metal such as copper, aluminum, or chrome, and a pattern (not shown) may be formed on the surface of the mesh roller 21a. The first pressure roller 21b may also be made of a metal such as copper or a nonmetal such as rubber or urethane.

A portion of the mesh roller 21a is contained in a container, and the composition for forming a reflection layer is embedded in the first base material 2a. A pattern portion may be formed on the mesh roller 21a, and a pattern or an emboss may be formed on the first medium 2a. On the other hand, the composition for forming a reflective layer may be supplied to the first base material 2a by spraying or the like without being accommodated in the container 22.

The first knife 23 is rotatably disposed in front of the mesh roller 21a. The first knife 23 can be brought into contact with the surface of the mesh roller 21a or fall from the surface of the mesh roller 21a depending on the rotating state. When the end of the first knife 23 comes into contact with the surface of the mesh roller 21a, a composition for forming a reflective layer irregularly formed on the mesh roller 21a can be uniformly formed on the surface of the mesh roller 21a. Therefore, a composition having a uniform thickness can be formed on the first base material 2a.

The second pressure roller 25 is disposed adjacent to the first pressure roller 21b. The first base material 2a coated with the composition for forming a reflective layer can pass between the first pressure roller 21b and the second pressure roller 25. [ The second pressure roller 25 and the first pressure roller 21b can press the composition for forming a reflective layer on the first base 2a to firmly adhere the composition for forming the reflective layer to the surface of the first base 2a .

Step 3 is a step of drying the coating film of the composition for forming a reflective layer formed in the step 2 to form a reflective layer.

The drying step is a step for removing the solvent contained in the coated film and for curing the coated film, and may be carried out by a conventional method such as hot air drying or heat drying. Concretely, it may be carried out in one step or in multiple stages. More specifically, it may be carried out by a primary drying step at 60 to 130 ° C, a secondary drying step at 40 to 120 ° C, Lt; 0 > C to 40 < 0 > C. Further, after the above three steps, a fourth drying step of 160 to 210 ° C may be performed. During the fourth high temperature drying process, a pressure greater than atmospheric pressure may be applied at the same time. The fourth drying step may be performed by the drying step alone, or may be carried out simultaneously with the drying step and the print layer forming step.

When the drying process is performed according to this method, the reflector can be adhered to the substrate with excellent adhesion and fastness.

In addition, the organic components having a low boiling point such as the thickening agent contained in the composition for forming a reflective layer are removed by the above drying step, and a reflective layer containing the reflector and the water-soluble anionic polymer is formed. At this time, a small amount of carbon component may remain in the reflection layer.

More specifically, referring to Fig. 1, the first base material 2a coated with the composition for forming a reflective layer is transferred to the first coupling unit 30. Fig. The first coupling unit 30 includes a first coupling roller 31 and a second coupling roller 32. When the second base material 2b is joined to the first base material 2a, (33). The first engaging roller 31 and the second engaging roller 32 may be made of metal, rubber, urethane or the like. The first joining roller 31 guides the first base material 2a with the composition for forming a reflective layer to the drying unit 40. In this case, the second substrate supply portion 33 is arranged so as not to supply the second base material 2b and to raise the second engaging roller 25 so as not to contact the first engaging roller 31. However, the second engaging roller 25 may be in contact with the first engaging roller 31. [

 A heating portion (not shown) is formed on the first engagement roller 31 (and / or the second engagement roller 32). The heating part primarily dries by applying heat to the first base material 2a coated with the composition for forming a reflective layer. The drying temperature may be 60-120 < 0 > C.

The first joining unit 30 may also proceed with joining (joining or joining) the second base material 2b to the first base material 2a. In this case, the second base material 2b may be supplied through the second base material supply part 33. [

The first base material 2a, which is primarily dried in the first combining unit 30, is supplied to the drying unit 40 for secondary drying.

Referring to FIG. 4, the drying unit 40 includes a body 41, a guide roller 42, and a heating unit (not shown).

The body 41 is formed with an inlet through which the base material having passed through the first coupling unit 30 flows and an outlet through which the base material is discharged. In the body internal space 411, a plurality of guide rollers 42 are arranged in the lateral and longitudinal directions. The arrangement of the guide rollers 42 can be changed according to the time that the substrate to be dried should stay in the internal space 411 of the body.

The heating unit applies heat to the internal space 411 of the body. The heating unit can burn fuel such as electricity, gas, oil and the like, and can supply the heat generated during the fuel combustion to the internal space 411 of the body by a fan (not shown). In addition, the heat supply can be carried out by all known heating methods. The heat supplied to the inside of the body 41 may be 40 ° C to 120 ° C. The heat supplied into the body 41 dries and ages the substrate coated with the composition for forming a reflective layer. The composition for forming a reflective layer can be deodorized by heat. Further, the drying unit 40 may further include equipment for deodorization, and may further include equipment for enhancing the function of discharging water or organic solvent by evaporating it.

The secondary dried substrate in the drying unit 30 is supplied to the second combining unit 50 for the tertiary drying.

Referring to FIG. 5, the second engaging unit 50 includes a third engaging roller 51 and a fourth engaging roller 52. And may include a third medium supply part 53 when the third base material 2c is bonded to the base material.

The third engaging roller 51 (and / or the fourth engaging roller 52) is provided with a heating portion (not shown). The heating unit applies heat to the base material that has passed through the drying unit 40 and dries it in a third order. The drying temperature is set to be lower than 40 캜 and lower than the drying unit 40.

The base material that has passed through the drying unit 40 passes through the third and the fourth joining rollers 51 and 52 without laminating and joining or is fed from the third medium supply unit 53 to the third base material 2c, Lt; / RTI >

Meanwhile, the composition for forming a reflective layer may further be subjected to a tertiary drying, followed by a fourth drying step at 160 to 210 ° C. At this time, pressure higher than atmospheric pressure may be applied at the same time. However, in the case where a print layer forming step to be described later is performed on the reflection layer, the fourth drying step may be omitted.

The composition for forming a reflective layer is coated on a substrate with excellent adhesion and fastness as a result of a multi-step drying process.

Step 4 is a step of forming a print layer on the reflective layer prepared in step 3 above.

A printed layer showing a pattern or dyeing can be formed on a substrate having a reflective layer formed by a composition for forming a reflective layer through a normal printing process. Specifically, high temperature sublimation transfer can be performed. More specifically, a printing sheet printed with a color and a pattern made of a sublimable dye is brought into contact with the reflective layer, and a pressure of 3 to 6 kgf is applied at a temperature of 160 to 230 캜 while the printing sheet and the reflective layer are in contact with each other And pressurized for 30 to 60 seconds to transfer the sublimable dye to the reflective layer. The printed sheet is then removed.

By forming the print layer by the sublimation transfer method as described above, it is possible to form various colors and patterns on the reflective layer without forming a separate print layer on the reflective layer including glass beads as in the conventional art. In addition, the reflection layer formed with such a pattern is the same as a general printed matter under natural light, and various colors and patterns can be reflected by the light transmitted at night, so that various patterns and colors can be expressed in accordance with the use of each reflection sheet.

More specifically, referring to FIG. 1, the sublimation transfer proceeds by supplying the substrate passed through the second coupling unit 50 to the transfer unit 60.

Referring to Fig. 6, the transfer unit 60 can perform heat transfer or sublimation transfer. The transfer unit 60 includes a housing 61, a first transfer roller 62, a second transfer roller 63 (or a belt 64), a transfer paper supply unit 65, and a protective paper supply unit 66.

The first transfer roller 62 and the second transfer roller 63 are used for the heat transfer without heat and the first transfer roller 62 and the second transfer roller 63 ) Is used.

The first transfer roller 62 and the second transfer roller 63 are rotatably coupled to each other in the housing 61. The first transfer roller 62 and the second transfer roller 63 are arranged in the vertical direction. The first transfer roller 62 or the second transfer roller 63 may be installed so that both the rollers 62 and 63 can move up and down. When the first transfer roller 62 and the second transfer roller 63 are in contact with each other, they can rotate in association with each other. However, the first transfer roller 62 and the second transfer roller 63 may receive rotational force from the power source, respectively.

The first transfer roller 62 may be made of a metal component such as copper, aluminum, nickel, or chromium. For example, when made of stainless steel for mechanical structure, it may contain 12-30% of chromium and 5-13% of nickel, and may comprise 17-33% of chromium and 15-18% of nickel when made of a heat resistant alloy.

The first transfer roller 62 is provided with a heater unit (not shown). The heater portion is formed of a stainless heater rod. The first transfer roller 62 may generate heat of 160 to 250 占 폚 by the heater unit. When a sublimation transfer requiring heat is performed, the heater unit operates to transfer heat to the first transfer roller 62. However, when the heat transfer unit that does not use heat is used, the heater unit is controlled not to operate.

The second transfer roller 63 abuts against the first transfer roller 62 and rotates to minimize deformation and transfer failure of the material. The second transfer roller 63 may be made of a synthetic rubber containing a metal component such as copper, aluminum, nickel, or chromium, or a prepolymer having a hydroxy group called a urethane elastomer.

Between the first transfer roller 62 and the second transfer roller 63, a substrate to be heat-transferred and a transfer sheet having a pattern can pass through.

A printing composition is added between the above-mentioned industrial plastic medium and transfer paper in order to carry out heat treatment at room temperature (heat-transfer) without applying heat. The printing composition for heat-transfer printing is selected from the group consisting of a low-boiling hydrocarbon solvent, an oleophilic composite resin, an ultraviolet absorber having anti-saturation function, a pequatite, an antistatic agent, an instant adhesive, a harmful gas removing agent, trichloromethane, Any one of the materials may be included.

In the case of sublimation transfer using heat, the belt 64 and the first transfer roller 62 are used. The second transfer roller 63 is separated from the first transfer roller 62 and the belt 64 is connected to the first transfer roller 62. In this case, The belt 64 is formed in the form of a belt having both ends connected to each other. The belt 64 can be installed in the housing 61 or stored separately.

In the sublimation transfer, the base material having passed through the second coupling unit 50 is introduced between the first transfer roller 62 and the belt 64. The transfer sheet feeding portion 65 is rotatably disposed in front of the first transfer roller 62. [ The transfer sheet supply unit 65 supplies a transfer sheet having the pattern formed therebetween between the first transfer roller 62 and the medium. The pattern of the transfer paper can be transferred to the base material while passing through the first transfer roller 62. [

The protective paper supply unit 66 is rotatably disposed below the transfer paper supply unit 65. [ A protective paper for protecting the medium is wound around the protective paper supply part 66. [ Here, a protective cloth or the like may be used. The protective paper is supplied between the medium and the belt (64).

The transfer unit 60 according to the present embodiment may further include an unfolding portion 68 for allowing the base material to be fed between the belt 64 and the transfer paper in a state without being creased.

The above-described manufacturing method can form a reflective layer having high light reflection efficiency by a simple manufacturing process. In addition, the reflective material produced by the above-described manufacturing method can exhibit an excellent light reflection effect by including a reflective layer containing glass beads on at least one surface of the substrate. Also, when the glass beads are patterned and included in the reflection layer, the patterns of the glass beads themselves can be observed through the print layer during the flash irradiation, so that the double visibility effect can be exhibited. In addition, since the reflective layer includes a water-soluble anionic polymer together with the glass beads, the adhesion of the glass beads to the substrate can be increased without forming a separate adhesive layer, and as a result, the reflective material can exhibit remarkably improved fastness.

Because of the excellent adhesive strength, the reflective fabric may have a wash fastness of 4 to 5, a dry cleaning fastness of 4 to 5, and a friction fastness of 4 to 5.

In addition, the water-soluble anionic polymer contained in the reflective layer may increase the glass transition temperature of the reflective layer, specifically increase by about 20 to 40 ° C or more, thereby increasing the heat resistance of the reflective fabric so that sublimation transfer It is possible to prevent the occurrence of discoloration and combustion of the base material during the process, minimize the thickness of the reflective layer, and exhibit a significantly improved touch feeling.

Because of the excellent physical properties of the composition for forming a reflective layer as described above, the fabric of the article requiring visibility or design due to the light reflection effect of the reflective layer, specifically, the display panel, the reflective fiber, the safety cloth, .

Hereinafter, embodiments of the present invention will be described in detail so that those skilled in the art can easily carry out the present invention. The present invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein.

Production Example 1

50 parts by weight of a dispersion of a polyacrylic resin having an intramolecular hydroxy group as a water-soluble anionic polymer, 10 parts by weight of carboxymethylcellulose as a thickener, and 5 parts by weight of BYK-JET (TM) 9170 (2: 1 mixed volume ratio) of water and methyl alcohol, and the resultant solution was mixed with a glass bead having an average particle diameter of 40 占 퐉 (refractive index: 2.2, transparency: 98%, content of metal oxide component in glass beads 15%) and 10 parts by weight of microprisms were dispersed and stirred to prepare a composition for forming a reflective layer. At this time, the amount of the solvent used was adjusted so that the viscosity of the composition for forming a reflective layer was 4500 cps.

Production Example 2

50 parts by weight of a dispersion of a polyacrylic resin having an intramolecular hydroxy group as a water-soluble anionic polymer, 10 parts by weight of carboxymethyl cellulose as a thickener, and carbon black having an average particle diameter of 30 占 퐉 as a carbon component were dissolved in a solid content 10 parts by weight on the basis of weight and 5 parts by weight of BYK-JET (TM) 9170 (manufactured by BYK) as a dispersant were respectively measured and mixed in a mixed solution of water and methyl alcohol (2: 1 by volume mixing ratio) 100 parts by weight of a glass bead having an average particle diameter of 40 占 퐉 (refractive index: 2.2, transparency: 98%, content of metal oxide component in glass beads: 15%) and 10 parts by weight of microprisms were dispersed and stirred to prepare a composition for forming a reflective layer. At this time, the amount of the solvent used was adjusted so that the viscosity of the composition for forming a reflective layer was 4500 cps.

Production Example 3

A composition for forming a reflective layer was prepared in the same manner as in Preparation Example 1, except that microprism was used instead of glass beads in Production Example 1. [

Production Example 4

A composition for forming a reflective layer was prepared in the same manner as in Preparation Example 1, except that a mixture of 100 parts by weight of glass beads and 0.1 parts by weight of microprisms was used in place of glass beads.

Examples 1 to 4

The composition for forming a reflective layer prepared in Preparation Examples 1 to 4 was repeatedly coated on a nylon fabric having a size of 0.7 m X 0.7 m by a slit coating method so as to have a thickness of 50 탆 after drying. The coating film of the composition for forming a reflective layer formed on the nylon fabric was subjected to first high temperature drying by hot air at 120 ° C, second middle temperature drying by hot air at 90 ° C and third low temperature drying by dry air at 50 ° C A nylon-reflective layer fabric with a reflective layer on a nylon fabric was prepared. At this time, the content of the glass beads in the reflective layer in the fabricated nylon-reflective layer fabric was 70 g / cm ² .

Subsequently, a printing sheet on which a sublimable dye (CI Disperse Blue 14) was printed was placed on the reflective layer of the nylon-reflective layer fabric, and then pressed for 60 seconds while applying a pressure of 4 kgf at a temperature of 220 ° C, The dye was transferred onto the reflective layer to form a print layer, and a reflective fabric was produced in which a substrate, a reflective layer and a printed layer were sequentially laminated.

Test Example

The fabric specimens prepared by cutting the reflective fabric prepared in Example 1 to a size of 30 cm x 30 cm were evaluated for wash fastness, dry fastness, and fastness to rubbing, respectively. Fabrics 1 and 2, which were produced by heat-transferring a reflective sheet on which a glass bead layer was formed by heat treatment at 250 ° C onto nylon or a woven fabric, were used as Comparative Examples 1 and 2, respectively.

The washing fastness evaluation was carried out according to KS K ISO 105-C06: 2012 A2S ((40 ± 2) ° C, 30 minutes, ECE detergent) and the discoloration (nylon) and contamination And the results were evaluated according to the following criteria.

The dry cleaning fastness was evaluated according to KS K ISO 105-001: 2010 (solvent: perchlorethylene), and the discoloration and solvent contamination were observed after the test, and the results were evaluated according to the following criteria.

The rubbing fastness was evaluated according to the KS K 0650: 2011 croquette method, and the rubbing fastness under the respective conditions during drying and wetting was evaluated according to the following evaluation criteria.

The results of each evaluation are classified into five grades of 1 to 5, which means that the higher the grade, the better. The results are shown in Table 1 below.

Evaluation items Example 1 Comparative Example 1 Comparative Example 2 Wash fastness Fading color 4-5 3 2-3 Contamination (nylon) 4-5 3 3 Pollution 4-5 3 3 Dry cleaning fastness Fading color 4-5 3 2-3 Solvent pollution 4-5 3 3 Friction fastness dry 4-5 3 3 Wet 4-5 3 3

As shown in Table 1, the fabric of Example 1 produced using the composition for forming a reflective layer of Production Example 1 according to the present invention exhibited grades of 4 to 5 in terms of wash fastness, dry cleaning fastness and rubbing fastness, 3 < tb > < tb > < TABLE > In the case of the fabrics of Comparative Examples 1 and 2, yellowing was observed on the surface of nylon as the base material.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed exemplary embodiments, Of the right.

1: compound processing apparatus 2a: first medium
2b: second medium 2c: third medium
10: first medium supply unit 20: preprocessing unit
21a: mesh roller 21b: first pressure roller
22: container 23: uniform knife
24: feed knife 25: second pressure roller
26: Spray 27: Cleaning Knife
30: first coupling unit 31: first coupling roller
32: second coupling roller 33: second medium supply part
40: drying unit 41: body
411: chamber 42: guide roller
50: second coupling unit 51: third coupling roller
52: Fourth coupling roller 53: Third medium supply part
60: transfer unit 61: body
62: first transfer roller 63: second transfer roller
64: Belt 65: Transfer sheet feeding part
66: Protective paper supply unit 67: Clean member
68: unfolding portion 681: drum
681a: insertion hole 682: tension member
683: swash plate 684: cap
70: Return roller

Claims (13)

materials,
A reflective layer formed on at least one side of the substrate, and
A print layer disposed on the reflective layer and comprising a dye that exhibits a pattern or color,
Wherein the reflective layer comprises at least one reflector selected from the group consisting of glass beads and micro prisms and a water-soluble anionic polymer. The method according to claim 1,
Wherein the reflector comprises from 0.01 to 10 parts by weight of microprism with respect to 100 parts by weight of glass beads. The method according to claim 1,
Wherein the water-soluble anionic polymer is at least one selected from the group consisting of a water-soluble polyacrylic resin containing an anionic functional group in a molecule, a polyurethane resin, a polyvinyl alcohol resin, a polyvinyl acetate resin, a polyethylene oxide resin, a polypropylene oxide resin, Selected from the group consisting of silicon-containing polymers, silicon-containing polymers, polyacrylamide resins, ethylcellulose resins, chitosan, chitin, polyamide resins, polycarbonate resins, silicon-containing polymers including polydimethylsiloxane, Wherein the anionic functional group is selected from the group consisting of a hydroxy group, a carboxylic acid group and a sulfonic acid group. The method according to claim 1,
Wherein the water-soluble anionic polymer is contained in an amount of 30 to 100 parts by weight based on 100 parts by weight of the glass beads. The method according to claim 1,
Wherein the reflective layer has a thickness greater than or equal to the maximum particle diameter of the reflector and no greater than three times the reflector average particle diameter. The method according to claim 1,
Wherein the reflective layer further comprises 0.001 parts by weight or less of a carbon component based on 100 parts by weight of the reflector. The method according to claim 1,
A wash fastness of 4 to 5, a dry cleaning fastness of 4 to 5, and a fastness to rubbing of 4 to 5. Preparing a composition for forming a reflective layer by mixing at least one kind of a reflector selected from the group consisting of glass beads and micro prisms, a water-soluble anionic polymer, and a thickener;
Forming a coating film of a composition for forming a reflective layer by coating the composition for forming a reflective layer on at least one side of the substrate;
Drying the coating film to form a reflective layer;
Forming a print layer on the reflective layer by printing a color or pattern printed print sheet with a dye and then printing a dye or dye on the reflective layer, And
Steps to detach and remove the print sheet
Wherein the reflective fabric has a thickness of less than about 10 microns. 9. The method of claim 8,
Wherein the composition for forming a reflective layer comprises:
With respect to 100 parts by weight of the reflector,
30 to 100 parts by weight of the water-soluble anionic polymer and
And 0.1 to 20 parts by weight of a thickener. 9. The method of claim 8,
Wherein the composition for forming a reflective layer further comprises 0.001 parts by weight or less of a carbon component based on 100 parts by weight of the reflector. 9. The method of claim 8,
Wherein the composition for forming a reflective layer comprises a solvent selected from the group consisting of water, a lower alcohol having 1 to 5 carbon atoms, and a mixture thereof. 9. The method of claim 8,
Wherein the drying step comprises a primary drying step at 60 to 130 占 폚, a secondary drying step at 40 to 120 占 폚, and a third low-temperature drying step at a temperature of 40 占 폚 or lower. 9. The method of claim 8,
Wherein the printing is carried out by a transfer process applying a pressure of 3 to 6 kgf at a temperature of 160 to 230 ° C.

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