KR20170140865A - Back-light textile for advertising and apparatus of advertising using the textile - Google Patents

Abstract

The present invention provides a backlight fabric for an advertisement and an advertising device using the same, which improves flame retardancy and heat resistance, and can be manufactured at a simple and low cost. The fabric and the device are applied on one surface of a base material fabric. A coating layer of a single layer on which a printing layer printed with an image includes a binder, a curing resin, a pigment, and a flame retardant, wherein the flame retardant is a compound of one selected from a urethane group or a phosphorous group. The fabric is fixed to a fastening groove by a U shape fixing portion to which an end portion of a corner thereof is inserted.

Description

BACKGROUND OF THE INVENTION Field of the Invention [0001] The present invention relates to a backlight fabric for advertising,

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a backlight fabric and an advertising apparatus using the backlight fabric, and more particularly, to a fabric for displaying an image for advertisement printed by a backlight such as an LED module and an advertising apparatus using the fabric.

BACKGROUND ART [0002] Textiles in which various images are printed are used as outdoor and indoor advertising means using backlight illumination. Such a fabric is actually printed by ink-jet printing or the like, and this image is also referred to as a backlit fabric. Backlit fabrics are excellent in image quality and lightness, and can deliver clearer images. Most of the conventional backlight illumination sources use fluorescent lamps. However, a fluorescent lamp is bulky, has a large amount of heat, and various components for maintaining a light source are required, which is not economical due to a relatively high price. On the other hand, LEDs are small in volume, high in brightness, and easy to construct, making them suitable as backlight illumination sources. Accordingly, an advertising apparatus using a backlight illumination combining a LED light source and a backlight fabric has been proposed.

On the other hand, it is preferable that the backlit fabric is made by crossing the warp and wefts on the lower side and composed of a flat chain cloth having a constant width. In the case of the film type as disclosed in Korean Patent No. 10-1598191, the light diffusing effect is lower than that of the fabric, and the flexibility is low, which makes it difficult to apply. In addition, Korean Patent No. 10-1443975 discloses a method of coating the cloth three times for waterproof, light diffusion and printing suitability. However, since the process is complicated and the thickness of the coating layer is thicker than necessary It is costly and time consuming. Furthermore, the backlight fabric is required to have heat resistance to withstand the heat emitted from the LED light source, and flame resistance to prevent safety accidents caused by unexpected heat sources.

An object of the present invention is to provide a backlight fabric for advertisement which is improved in flame resistance and heat resistance, and can be manufactured with a simple and low cost, and an advertising device using the backlight fabric.

SUMMARY OF THE INVENTION One aspect of the present invention is to provide a backlit fabric for advertising, which comprises a base fabric, a single layer of a coating layer on which a printing layer is printed on which an image is printed, and a printing layer on which the image is printed. At this time, the coating layer comprises a binder, a curing resin, a pigment and a flame retardant, and the flame retardant is any one selected from urethane and phosphorous.

In the fabric of the present invention, the fabric may have warps and wefts made of synthetic resin or natural resin or a combination thereof. Some of the warp and weft yarns may be made of cellulose.

In the preferred fabric of the present invention, the flame retardant may include a monomer having a structure represented by the following formula (1).

Here, X and W are reactive functional groups, and Y and Z are elements such as carbon, phosphorus, silicon, and boron, or flame retardant functional groups. Each of R 1, R 2 and R 3 is an aromatic functional group.

In the woven fabric of the present invention, the flame retardant may form an end functionalized structure in which the monomer is condensed and bound by a functional group in a chain form, and the flame retardant is a polymer in which the monomer is linked in a chain The functional group may form a functional group pendant structure. The monomer may partially bind to the oligomer in the form of a chain by a functional group to form an oligomer. The oligomer is cross-linked by an aromatic functional group, Structure.

In the woven fabric of the present invention, the base fabric may further include a water-repellent layer on the opposite side of one surface on which the coating layer is formed.

 According to another aspect of the present invention, there is provided an advertisement apparatus using a backlit fabric for advertising, the advertising apparatus including a case having one side opened to receive the LED module, a coupling groove formed in the case, and a fabric fixed to the coupling groove. At this time, the fabric sheet is fixed to the engaging groove by a U-shaped fixing part having an end of an edge inserted therein, and the fabric sheet includes a single layer coating layer on which a printing layer on which an image is printed is laminated And the coating layer comprises a binder, a cured resin, a pigment and a flame retardant, and the flame retardant is any one selected from urethane and phosphorus.

In the apparatus of the present invention, the fixing portions may be integrally connected to each other at the edges without being separated from each other or separated from each other. The base fabric may further include a water-repellent layer on the opposite surface of the one surface on which the coating layer is formed.

In the preferred apparatus of the present invention, the flame retardant may include a monomer having a structure represented by the following formula (1).

Here, X and W are reactive functional groups, and Y and Z are elements such as carbon, phosphorus, silicon, and boron, or flame retardant functional groups. Each of R 1, R 2 and R 3 is an aromatic functional group.

INDUSTRIAL APPLICABILITY According to the advertisement backing fabric for advertising and the advertising device using the backing fabric of the present invention, by forming a single-layer coating layer containing a flame retardant, flame retardancy and heat resistance characteristics can be improved, and simple and low cost fabrication can be achieved.

1 is a perspective view illustrating an advertising device using a backlight fabric for advertisement according to the present invention.
2 is a cross-sectional view taken along line II-II in FIG.
3 is a cross-sectional view illustrating a first backing fabric for advertisement according to the present invention.
4 is a cross-sectional view showing a second backing fabric for advertising according to the present invention.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the accompanying drawings. The embodiments described below can be modified into various other forms, and the scope of the present invention is not limited to the embodiments described below. The embodiments of the present invention are provided to enable those skilled in the art to more fully understand the present invention.

Embodiments of the present invention provide a backlit fabric and an advertising device which are improved in flame resistance and heat resistance by forming a coating layer of a single layer containing a flame retardant, and can be manufactured with simple and low cost. To this end, a composition of a single-layer coating layer will be described in detail, and an advertising apparatus to which the coating layer is applied will be described in detail. Here, the monolayer refers to a coating composition applied in a single layer.

FIG. 1 is a perspective view for explaining an advertising apparatus using a backlight fabric for advertisement according to an embodiment of the present invention, and FIG. 2 is a sectional view taken along the line II-II in FIG.

1 and 2, the advertising device of the present invention includes a case 10, an LED module 12, a fixing portion 20, and a backlit first fabric 100. The case 10 is opened at one side to receive the LED module 12. Although not shown, the case 10 may further include a device for performing additional functions such as a control device for operating the LED module 20, a power supply device, and the like. The LED module 12 has a plurality of LED lamps 13 mounted on the LED substrate 14. The LED lamp 13 is excellent in light efficiency because it irradiates light having a directivity at a predetermined angle, It is possible to obtain equal or better illumination compared to the case of FIG. Since the power consumed by the LED lamp 13 is about 20 to 30% of a fluorescent lamp, the advertisement device of the present invention has an advantage of lowering power consumption. The backlit woven fabric 100 will be described in detail with reference to FIGS. 3 and 4. FIG.

The fixing portion 20 presses and fixes a corner end of the backlit first fabric 100 with a metal plate, a synthetic resin plate or the like in the form of a U-shaped band. That is, the edge end of the backlit first fabric 100 is inserted into the fixing portion 20. The fixing portions 20 may be in the form of being separated from each other at each of the corners as shown, and may be in the form of being integrally connected without being detached. The fixing portion 20 is inserted and fixed in the coupling groove 11 formed in the case 10. The fixing part 20 essentially retains the shape of the U-shaped band, but the fixing part 20 can be easily and firmly fastened to the fastening groove 11 and can be variously modified in consideration of aesthetics or the like.

The advertisement device proposed in the present invention can automatically turn on / off the lighting device of the advertisement device at a desired time by the added control device or the like and add wireless RF devices to the control device to remotely control the advertisement devices individually or group by group . Also, the LED lighting unit combined with the LED module can be applied to facilitate detachment and attachment, and the advertising effect by the light rays can be enhanced through the condensing and spectroscopic lens. As such, the advertisement apparatus of the present invention can add a device that performs various functions within the scope of the present invention.

3 is a cross-sectional view showing a first backlight fabric 100 according to an embodiment of the present invention. Here, an advertising apparatus using a backlight fabric for advertising will be described with reference to FIGS. 1 and 2. FIG.

Referring to FIG. 3, the first fabric 100 comprises a fabric fabric 101 made of a fabric, a coating layer 102 of the present invention, and a printing layer 103. The base fabric (101) is a fabric which is formed into a flat body such that warp and weft, which are in the form of fibers, cross each other over and under. The warp and weft of the base fabric 101 can be synthetic resin or natural resin or a combination thereof, and the synthetic resin is not necessarily limited to polyolefin, polyethylene terephthalate, polyamide and the like. Natural resins include natural silk and cellulose. The warp and weft spacing, the warp and the thickness of the weft can be appropriately adjusted in consideration of the size of the advertising apparatus of the present invention, the heat generation amount of the LED module, and the like.

On the other hand, the base fabric 101 may be woven by blending the fibers to improve heat resistance. Cellulosic fibers are preferred as the fibers that increase the heat resistance. Cellulose is a molecular formula (C ₆ H ₁₀ O ₅ ) _n , which is a saccharide that constitutes a major component of cell walls of higher plants, and is also called fibrin. The physical properties of cellulose are mainly crystalline, and the flexibility and swelling properties are mainly due to the amorphous region. In the crystal region, glucose residues in the form of isoform CI were supported in hydrogen bonds, glucoside bonds and van der Waals forces in the directions of a-axis, b-axis and C-axis respectively so that a = 8.35 Å, b = 10.3 Å, c = 7.9 A unit cell exists. The proper properties of the cellulose, such as strength, elongation, elasticity and wettability, are determined by the appropriate arrangement of the crystal region and the amorphous region.

The cellulose used in the present invention is less likely to shrink due to heat and is excellent in heat resistance. In addition, since the coating layer is well coated with high wettability and high mechanical strength, the base fabric 101 can be firmly supported. Accordingly, when the cellulose fiber is used as a part of the warp and weft, the dimensional stability, heat resistance, ease of coating, and mechanical strength are improved. Since cellulose is highly elastic, it is better to apply all of the warp and weft yarns to some warp and weft yarns rather than to cellulose.

A monolayer coating layer 102 is applied to one side of the substrate fabric 101 and a printing layer 103 on which a commercial image is printed is laminated on the coating layer 102. The image may be combined with a flat or three-dimensional shape, color, etc., and a logo, a name, a product specification, etc. may be added to characters or figures. The type of image, typeface, size, etc., depends on the purpose of the advertisement. The printing layer 103 can be any known printing method, and for example, solvent printing, latex printing, UV printing, and the like can be applied. Accordingly, a detailed description of the printing method will not be given.

The coating layer 102 includes a binder, a curing resin, a pigment, and a solvent, and a flame retardant is added to the flame retardant to enhance flame resistance. The coating layer 102 may inevitably contain components such as a crosslinking agent, a surfactant, an antistatic agent, a catalyst, and the like. The coating layer 102 comprises 35 to 45% by weight of binder, 1.5 to 2.0% by weight of a curing resin, 3 to 10% by weight of pigment and 38 to 58.5% by weight of solvent, based on the total weight of the flame retardant, By weight. The coating method of the coating layer 102 is not particularly limited, and for example, spray, roll-to-roll, dip coating, bar coating, flow coating, gravure coating and the like may be used within the scope of the present invention. After the coating layer 102 is formed, it is dried in a noncontact manner at a temperature of 100 ° C to 180 ° C for a certain period of time. At this time, the thickness of the coating layer 102 is preferably 5 占 퐉 to 40 占 퐉.

The binder may be at least one selected from the group consisting of urethane, siloxane, epoxy, polyurethane, polyester, polyether, polyvinyl chloride, polyvinyl alcohol (PVA), ethylene vinyl acetate (EVA), polyethylenimine (PEI), polydiallyldimethylammonium chloride Or a homopolymer or copolymer thereof. The acrylic system is a component for printability of the print layer 103. The thermosetting resin may be a condensation polymerization type or an addition polymerization type, and the condensation polymerization type may include a phenol resin, a urea resin, a melamine resin, and an addition polymerization type. Epoxy resin, and polyester resin.

The ultraviolet ray hardening resin is prepared by blending various kinds of acrylic units and an ultraviolet ray curing catalyst into, for example, a polyurethane resin, an epoxy resin or a polyester resin. As a specific example of the ultraviolet curing material, urethane or acrylate oligomer, reactive monomer, photoinitiator and leveling agent are mixed as an ultraviolet reactive coating material. The urethane acrylate oligomer has a formula containing an aliphatic, cyclic aliphatic, aromatic compound or an oligomer of these compounds, and polyester polyol or polyether polyol is included in the molecular structure.

As the reactive monomer, trimethylpropane triacrylate, hexane diol diacrylate, pentaerythritol triacrylate and dipentaerythritol hexaacrylate are mixed and adjusted at a suitable ratio in consideration of hardness and adhesive force. As the photoinitiator, a usual polymerization initiator which is activated by ultraviolet rays is used, and in particular, hydroxycyclohexyl phenyl ketone, benzophenol, and phenyl-2-hydroxy-2-phenylketone are mainly used.

The pigment is for controlling opacity and includes at least one selected from silica, titanium dioxide, alumina, zinc oxide, calcined clay, zirconia, and talc. The solvent may be selected from the group consisting of alcohols, glycol ethers, esters, ketones, toluene, and mixtures thereof. Solvent means a single solvent or solvent mixture according to the present invention. Especially preferred solvents are toluene, i-propanol, ethanol, butanol, diisobutyl ketone, butyl glycol, butyl glycol acetate.

Generally, the flame retardant is broadly divided into an additive type which imparts flame retardancy by blending with a polymer, and a reactive type which includes a flame retardant in the polymer itself. The flame retardant is a substance having a function of reacting at a decomposition temperature or lower of the base fabric 101 to prevent contact between the base fabric 101 and oxygen, and to release incombustible gas to interfere with combustion. The combustion of the substrate fabric 101 to which the flame retardant is applied proceeds in the order of heating, softening of the compound, decomposition, ignition of the decomposed gas, and combustion of the substrate fabric 101 is inhibited.

The flame retardant retards the chain reaction by free radicals and generates steam, carbon dioxide, and ammonia gas, which are incombustible gases, to maintain the flash point of the gas decomposed in the substrate at a high level, Function. It is also decomposed by endotherm and endothermic reaction to reduce heat of combustion and inhibit the progress of flame. Typical flame retardants are addition type, and addition type flame retardants are classified into organic flame retardant and inorganic flame retardant. Organic flame retardants include halogen-based flame retardants, urethane-based flame retardants, and phosphorus-based flame retardants. Antimony oxide and aluminum hydroxide are inorganic flame retardants mainly used as secondary flame retardants.

Halogen-based flame retardants can be largely divided into chlorine-based and bromine-based ones. At this time, the brominated flame retardants are tetrabrombisphenol A (TBBA), decabromodiphenyloxide (DBDPO) and decabromodiphenylethane (DBDPE), and chlorine is TCP (chlorinated paraffin). The halogen-based flame retardant is advantageous in terms of economy and flame retardancy, and has been widely used. In particular, a brominated flame retardant is used in many cases, and it can be used in combination with antimony trioxide to increase the flame retarding effect. Recently, the use of halogen or antimony flame retardants has been regulated by the Dioxin Regulation Act, and as environmental issues become an international issue, the industry is regulating its use autonomously.

The flame retardant applied to the present invention is either urethane or phosphorus. Phosphorous flame retardants are preferred, and phosphorus flame retardants are non-halogen based flame retardants having their own digestibility. More preferably, the embodiment of the present invention provides a phosphorus-based flame retardant of the formula (1) which can satisfy both environmental problems and flame retardancy efficiency. Formula 1 is an example of a structural formula of a flame retardant monomer according to an embodiment of the present invention.

Here, X and W are reactive functional groups, and Y and Z are carbon and phosphorus-based functional groups. R 1, R 2, and R 3 can be easily combined with hydrogen (H), an alkyl group, a phenyl group, and the like to form a three-dimensional network structure. Y and Z are each a functional group imparting flame retardancy and may be the same or different functional groups.

In the case of the phosphorus flame retardant, Y or Z of the monomer includes carbon (C) or phosphorus (P), and in the case of the halogen flame retardant, Y or Z of the monomer may include silicon (Si) or boron .

The monomer of Formula 1 has a multi-ring aromatic structure. The monomers decompose during combustion to form radicals such as HPO _{2 and} PO. The thus formed phosphorus radicals trap H radicals or OH radicals which are active in the vapor phase, and by the dehydration reaction of the phosphorus-containing functional groups It forms high-quality vitreous or dense carbon chunks to block oxygen supplied from the outside. At this time, the formation of a porous carbon ingot increases the flame retarding effect, and the porous form of the carbon ingot varies depending on the characteristics of the chemical structure of the flame retardant.

The flame retardant of formula (I) may form an end functionalized structure in which the monomer is condensed in a chain form by functional groups to form a condensed structure. The flame retardant may form a functional group pendant structure by linking the monomer with a functional group. The flame retardant may partially bind to the monomer in the form of a chain by a functional group to form an oligomer, and the oligomer may have a network structure by crosslinking by an aromatic functional group.

Hereinafter, modified examples of the phosphorus-based flame retardant of the above-described formula (1) will be described.

The modified strain functional groups represented by the following formulas (2), (3) and (4) are bonded at the position of Y or Z in formula (1). Combining the different elements can improve the flame retarding effect compared to the use of the phosphorus flame retardant alone. The synergistic effect of the combination of phosphorus and halogen is already well known, and the chlorine-containing phosphoric ester is used as a flame retardant such as urethane. The flame retardant containing the modified phosphorus functional group has a smaller amount of smoke and volatile matter than the conventional phosphorus flame retardant, and the generation of carbon clusters can be achieved well.

(2) is a structural formula showing a modified phosphorus compound containing a nitrogen (N) compound. The nitrogen compound facilitates the dehydration effect, thereby facilitating the formation of a carbon ingot. Here, Ph represents a phosphate-based functional group.

(3) is a structural formula showing a modified phosphorus compound containing a sulfur (S) compound. The sulfur compound also promotes the dehydration effect like the nitrogen compound, thereby facilitating the formation of carbon lumps. Here, Ph represents a phosphate functional group.

(4) is a structural formula showing a modified phosphorus compound containing a silicon (Si) compound. Silicone compounds have the role of stably maintaining the crosslinking as in the action of carbon in organic materials.

The modified phosphorus compounds are more environmentally friendly than the halogen-based compounds, and the capturing power of the vapor-phase free radicals is twice or more. The higher trapping power is due to the fact that the outer energy of phosphorus atoms is higher than the outer energy of halogen atoms such as bromine and fluorine.

4 is a cross-sectional view illustrating a backlight second fabric 200 according to an embodiment of the present invention. Here, the second fabric sheet 200 is the same as the first fabric sheet 100 except that the water repellent layer 104 is further added. Accordingly, detailed description of the same reference numerals will be omitted.

4, the reason why the water repellent layer 104 is provided is that the advertisement device of the present invention may cause moisture to cloud the image due to refraction, dust adsorption, etc., and may damage the operation of the LED module 12 . The water-repellent layer 104 includes any one of a silicon-based material and a fluorine-based material or a mixture thereof. The silicon-based material exhibits a contact angle of 65 ° to 103 ° and the fluorine-based material exhibits a contact angle of 103 ° to 121 °. The material of the typical water-repellent layer 104 is a perfluoro compound. The coating method of the water-repellent layer 104 is a wet coating method, and a known method is applied.

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, but many variations and modifications may be made without departing from the spirit and scope of the invention. It is possible.

10; Case 11; Fastening groove
12; LED module 13; LED lamp
14; LED substrate 20; [0035]
100, 200; The first and second backlit fabrics
101; A substrate fabric 102; Coating layer
103; A printing layer 104; Water-repellent layer

Claims (15)

Base fabric;
A single-layer coating layer applied to one side of the substrate fabric and laminated with a printing layer on which an image is printed; And
And a printing layer on which the image is printed,
Wherein the coating layer comprises a binder, a hardening resin, a pigment, and a flame retardant, and the flame retardant is any one selected from urethane-based and phosphorous-based compounds. The backlight fabric of claim 1, wherein the substrate fabric has warp and weft yarns made of synthetic resin, natural resin, or a combination thereof. 3. The backlit fabric of claim 2, wherein the warp and weft yarns are made of cellulose. The backlit fabric for advertising according to claim 1, wherein the flame retardant comprises a monomer having a structure represented by the following formula (1).

Here, X and W are reactive functional groups, and Y and Z are elements such as carbon, phosphorus, silicon, and boron, or flame retardant functional groups. Each of R 1, R 2 and R 3 is an aromatic functional group. 5. The backlight fabric of claim 4, wherein the flame retardant forms an end functionalized structure in which the monomer is condensed to form a condensed chain by functional groups.       The backlit fabric for advertising according to claim 4, wherein the flame retardant is formed by combining the monomers with a functional group to form a functional group pendant structure. [5] The backlight fabric for advertisement according to claim 4, wherein the flame retardant has a net-like structure by crosslinking the oligomer by an aromatic functional group, and the oligomer is partially crosslinked by a functional group to form an oligomer, . 5. The backlit fabric for advertising according to claim 4, wherein the flame retardant comprises a modified phosphorus compound including a nitrogen compound represented by the following formula (2) at the Y and Z positions of the formula (1).

Here, Ph is a phosphate functional group. 5. The backlit fabric for advertising according to claim 4, wherein the flame retardant comprises a modified phosphorus compound containing a sulfur compound represented by the following formula (3) in the Y and Z positions of the formula (1).

Here, Ph is a phosphate functional group. 5. The backlit fabric for advertising according to claim 4, wherein the flame retardant comprises a modified phosphorus compound at the Y and Z positions,

The backlit fabric for advertising according to claim 1, wherein the base fabric further comprises a water repellent layer on the opposite side of the one surface on which the coating layer is formed. A case having one side opened to receive the LED module;
A fastening groove formed in the case; And
And a fabric fixed to the engaging groove,
The fabric sheet is fixed to the fastening groove by a U-shaped fixing part into which an end of the edge is inserted,
Wherein the fabric comprises a single layer coating layer applied to one side of the substrate fabric and laminated with a printing layer on which an image is printed, the coating layer comprising a binder, a curing resin, a pigment and a flame retardant, Wherein the compound is selected from any one of the compounds. 13. The advertising device according to claim 12, wherein the fixing portions are integrally connected to each other at the edges without being separated or separated from each other. [12] The advertising device using the backlit fabric according to claim 12, wherein the flame retardant comprises a monomer having a structure represented by the following formula (1).

Here, X and W are reactive functional groups, and Y and Z are elements such as carbon, phosphorus, silicon, and boron, or flame retardant functional groups. Each of R 1, R 2 and R 3 is an aromatic functional group. 13. The advertising device as claimed in claim 12, wherein the base fabric further comprises a water repellent layer on the opposite side of the one surface on which the coating layer is formed.

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