KR20150117395A - Superior See-Through and Energy Saving Sunscreen Fabrics with Coated Yarn Containing Organic/Inorganic Hybrid Coating Layer and The Preparation Method Thereof - Google Patents

Abstract

The present invention is to solve problems of a sunscreen fabric using a conventional aluminum deposition method such as high-priced equipment, width restriction, a low preparation speed and damage to a coating layer caused by an external shock like a scratch. The present invention provides a sunscreen fabric which has high tenacity yarn of polyester as the core, and coats a mixture of a dye or a pigment and a binder on the back side of the fabric prepared by weaving coated yarn with a coating layer wrapped around the core in a sheath type, and a preparing method thereof. The present invention relates to a method for providing the sunscreen fabric having one side of the fabric, facing the sun, with excellent heat reflectivity and the other side of the fabric with an excellent see-through characteristic, and to an energy saving sunscreen fabric prepared via the method.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an energy saving type sunscreen fabric having excellent visibility using a coating yarn having an organic / inorganic composite coating layer and a method of manufacturing the same.

In order to solve problems such as high cost and low productivity of a sunscreen product using an aluminum deposition method as an energy saving product, it is desirable to use polyester high-strength yarn as a core and to surround the core with a sheath The present invention relates to a sunscreen fabric having a back surface of a fabric prepared by using a coating yarn having a coating layer having a coating layer formed thereon and a coating layer covering the coating layer, Inorganic composite coating layer in which fine particles containing at least one or more particles selected from the group consisting of silica particles, silica airgel and bubble beads are mixed with a thermoplastic resin, the one side of the fabric has a high see-through property, To a sunscreen fabric to which an energy saving type fabric is applied.

As the quality of life in modern people increases, the interior space that provides a more comfortable and comfortable atmosphere is becoming more advanced and westernized. Accordingly, the demand for the products that make up the interior decoration is continuously increasing, and the market is growing steadily due to the shortening of the replacement cycle of the interior according to the taste of the person. Therefore, interest in interior lighting for interior decorations, basic interior products such as blinds and curtains, carpets and wallpaper, and wood interiors panels, which are responsible for blocking lights or adjusting the amount of light, are rising.

In recent years, domestic and foreign textile companies have been struggling with increasing competition due to improvement in quantity and quality of textile materials and machinery, mainly in apparel. In order to realize this reality, the industry has specialized in various functional and environment-friendly cutting-edge materials mainly in industrial fields in each field, enabling more diversified value creation through linkage among industries.

In advanced countries, there is an urgent need to develop products that respond to such environment, as they are not only harmful to human health, but also are increasingly interested in and demanding energy-saving products with high efficiency.

In order to weave a fabric used as a material such as a sunscreen or a vertical, existing techniques include a core portion 1 made of polyethylene terephthalate as shown in Fig. 1, and a core portion 1 made of polyethylene terephthalate A circular cross-section coating yarn including a sheath 2 made of a polyvinyl chloride material having a bushing-shaped cross section has been developed to embrace the deep portion 1 of the material.

However, since such a conventional circular cross-section coating yarn is formed into an isotropic structure in which the outer side of the outer surface of the outer shell 2 is circular, irregular luster according to the observation angle is not observed because the surface of the circular cross- Is not shiny and thus not only the merchantability is lowered but also there is a problem that the fabric is woven using the circular cross-section coated yarn and the use thereof is limited.

For example, Japanese Patent No. 10-0666482 (titled polyvinyl chloride coated yarn) discloses a polyvinyl chloride coated yarn comprising a polyester monofilament yarn as a core and an outer surface coated with PVC. Such a polyvinyl chloride coated yarn can form a fabric neatly due to a circular core material and improve the durability and strength of the product. However, since the outer surface of the outer shell is formed into an isotropic structure having a circular shape, The irregular gloss according to the viewing angle is not observed and the appearance does not shine because of the irregular reflection, the merchantability is lowered and the feeling of the fabric woven using the circular cross-section coated yarn is not only insufficient, but also lacks in durability, strength and flame retardancy So that the use thereof is limited.

Further, in the case of the disclosure of Japanese Patent Laid-Open No. 2006-14110 (entitled "Fourfold cross-section artificial intelligent high performance composite fiber)", the first polymer melt and the second polymer melt are simultaneously radiated from the cis- Core type conjugate fiber is formed not by extruding polymer melt into a yarn to be fed but by simultaneously spinning two kinds of polymer melts from a cis-core type composite spinning nozzle, Durability and strength are severely shortened, and there is a problem that the fabric can not be formed neatly when the fabric is manufactured by using the composite fiber because the fabric is flattened or flattened.

Though these existing composite yarns or coating yarns are presented, much attention has been paid to energy saving materials as well as environmentally friendly, safety, and sunscreen products. The demand for interior products is increasing. Sunscreen products that achieve high thermal reflectance for energy saving are mainly developed based on aluminum deposition method. However, in the case of vapor deposition method, by using high purity aluminum metal, the metal is ionized in a high vacuum environment, Coating on the surface, and a process such as post-coating is again required in order to improve the adhesion and adhesion between the fabric and the metal particles, and the equipment to be used is also expensive, and the width of the product to be produced is limited , There is still a problem that production speed is slow.

Patent No. 10-0666482 (entitled " Polyvinyl chloride coated yarn) Japanese Patent Laid-Open No. 2006-14110 (entitled "Fourfold Section Artificial Intelligent High Performance Composite Fiber)

It is an object of the present invention to solve the problems of the prior art as described above and it is therefore an object of the present invention to provide a method of manufacturing a semiconductor device by limiting the height and width of equipment, In which a polyester yarn is used as a core and a coating layer having a coating layer surrounding the core in the form of a sheath is woven on the back surface of a fabric, and a dye or pigment and a binder By providing a sunscreen fabric with a mixture applied thereto and a method for producing the same, it is intended to provide a sunscreen fabric excellent in heat reflectance and excellent in see-through on the other side of the fabric.

The present invention relates to a method for producing a polyester yarn comprising the steps of applying a dye or a mixture of a pigment and a binder to a back surface of a fabric produced by weaving a coating yarn having a coating layer that surrounds the core in the form of a sheath, Wherein the coating layer is an organic / inorganic composite coating layer in which fine particles containing at least one or more of thermally decomposed silica, silica airgel and bubble beads are mixed with a thermoplastic resin, And is an acrylic or urethane binder having a high bonding property with a thermoplastic resin of a coating layer of a thermosetting resin.

The total thickness of the coated yarn is preferably 200 to 800 micrometers, the thickness of the organic / inorganic composite coating layer is preferably 100 to 500 micrometers, and the thermoplastic resin used for the organic / inorganic composite coating layer may be polyvinyl chloride (PVC) ), Polyolefin (PO) and thermoplastic polyolefin (TPO), and the difference in melting point between the core of the coated yarn and the thermoplastic resin used in the coating layer is preferably at least 20 ° C or more.

The coating layer of the coated yarn may further include a phosphorus-based flame retardant or an inorganic flame retardant, and the coated yarn has a tensile strength of 10 N or more and an elongation percentage of less than 30%.

Another embodiment of the present invention is a method of manufacturing an energy saving sunscreen fabric comprising mixing fine particles and a plasticizer comprising at least one or more of thermoplastic resin, pyrolytic silica, silica airgel and bubble beads A compounding step of preparing a dispersion and extruding it into a chip form; A coating step of forming an organic / inorganic composite coating layer by coating a coated coating material compounded in a chip form around the core yarn; Weaving a coated yarn with an organic / inorganic composite coating layer to produce a fabric; And applying a dye or a mixture of a pigment and a binder to the back surface of the fabric.

In this case, the binder is preferably an acrylic or urethane binder having a high bonding property with the thermoplastic resin of the coating layer of the coating yarn, and a phosphorus flame retardant or an inorganic flame retardant may be added in the step of preparing the dispersion.

In addition, it is preferable that the dye or the mixture of the pigment and the binder is applied by a spray method, and a thermal processing step may be added before the spray application step.

The energy-saving sunscreen fabrics according to the present invention are excellent in aesthetic sensibility while having excellent see-through properties. Especially, the heat-reflecting fine particles contained in the coating layer of the coating yarn are effective in solar and tropical radiant heat (Cooling) energy saving function because it has heat reflection characteristic. The present invention also relates to a functional sunscreen fabric having high price competitiveness and a manufacturing method thereof, since it can be manufactured without using expensive metal deposition methods such as aluminum.

In addition, the functional sunscreen fabric according to the present invention and its manufacturing method are superior to the conventional silverscreen products of the Verosol company, which is an excellent energy saving sunscreen fabric, It is possible to give a fashionable aesthetic sensibility to the sunscreen, and it has an advantage of having high visibility characteristics.

Figure 1 schematically illustrates the structure of a conventional coated yarn.
Fig. 2 schematically shows the coating yarn structure of the present invention.
Figure 3 is a flow chart illustrating the steps of fabricating the sunscreen fabric of the present invention.
FIG. 4 schematically shows a method of spraying a dye or a mixture of a pigment and a binder on the back surface of a sunscreen fabric produced using the coating yarn of the present invention.

Hereinafter, the energy-saving functional sunscreen fabric of the present invention will be described in more detail with reference to specific examples.

In the production of the energy saving functional sunscreen fabric of the present invention, as shown in FIG. 2, a coating yarn having an organic / inorganic composite coating layer distinguishable from the conventional coating yarn is used. As the raw material of the core portion positioned at the center of the coated yarn, polyester high strength yarn is employed, and the core yarn preferably has a diameter of 100 to 500 denier.

The coating composition for forming the organic / inorganic composite coating layer coated on the outer surface of the core yarn includes a thermoplastic resin as a main component, and the melting point of the thermoplastic resin is preferably in the range of 80 to 220 ° C. Specific examples of the thermoplastic resin may include at least one of polyvinyl chloride (PVC), polyolefin (PO), and thermoplastic polyolefin (TPO).

In particular, when a PVC resin is used as the thermoplastic resin, it is preferable to use a PVC resin having a polymerization degree of 800 to 2000. If the degree of polymerization of the PVC resin is larger than 2000, there is a problem that the weather resistance is decreased.

The content of the thermoplastic resin in the coating composition for forming the organic / inorganic composite coating layer is preferably in the range of 40 to 90% by weight, more preferably in the range of 50 to 70% by weight based on the total weight of the entire coating composition Can be used.

The coating composition may further include a flame retardant to improve the flame retardancy of the coated yarn. Examples of the flame retardant include halogen-based, phosphorus-based or nitrogen-based flame retardants and inorganic flame retardants such as metal oxides and metal hydroxides. However, since the halogen-containing flame retardant is regulated in terms of environment friendliness, it is preferable to use a phosphorus-based or inorganic flame retardant. More specifically, examples of the inorganic flame retardant include magnesium dihydroxide, aluminum trihydrate, Zinc borate and antimony trioxide. It is also possible to use phosphorus flame retardants such as melamine phosphate, melamine polyphosphate, ammonium phosphate, isopropylphenyldiphenylphosphate, triphenylphosphate, triethylphosphate, resorcinol diphosphate, tricresylphosphate, magnesium dihydroxide, Side or the like can be used.

The flame retardant used in the present invention may be a mixture of one or more of the above materials. The flame retardant may be used in an amount of 5 to 50% by weight based on the total weight of the coating composition, 10 to 40% by weight can be used.

The coating composition according to the present invention may further contain various other functional additives in order to further improve the functionality of the coating yarn. Examples thereof include a lubricant, an ultraviolet stabilizer, and a functional filler for smooth mixing. Based on the total weight of the total coating composition. As the ultraviolet stabilizer, a benzophenone-based compound or titanium oxide (TiO 2) may be used. Examples of the functional filler include heat-reflecting type such as calcium carbonate, antimicrobial agent, fumed silica, silica airgel, and glass bubble Functional fillers can be used as fine particles.

The coating yarn used in the present invention may be coated to a thickness of about 100 to 500 micrometers in a form such that the coating composition is applied to the outside of the core yarn so that the coating yarn is coated on the entire surface of the core yarn, May be in the range of 200 to 800 micrometers. The coating yarn should have a melting point difference of at least 20 ° C between the core yarn and the coating material and has a proper elasticity so that the wrinkle is not easily generated and the form stability, antibacterial property and color applicability are excellent.

Also, the coating yarn has a tensile strength of 10 N or more on the basis of 300 micrometer coating yarn and an elongation of less than 30%. The fabrics produced by weaving the coating yarns of the present invention are excellent in flame retardance and color development, more specifically, the fabric has an oxygen index value of 27 or more and a light fastness of 7 or more on a blue scale basis.

The fabric manufactured by weaving the coating yarn of the present invention can be further immobilized by inducing thermal fusion between the core yarn and the organic / inorganic composite coating in the tenter and the drying process during the manufacturing process, Can maintain high rigidity when used as a blind or sunscreen fabric material.

Preparation of coating compositions

The flame retardant is added to the coating composition in an amount of 40 to 90% by weight based on the total coating composition at room temperature and dispersed for about 20 minutes in a raw material resin (thermoplastic resin, etc.) By weight and further dispersed for about 10 minutes.

In addition, it is possible to add additives capable of imparting other functions such as lubricants, pigments, ultraviolet stabilizers, antibacterial agents, functional fillers, etc. As the functional fillers, heat-resisting functional fine particles, such as fumed silica, Silica airgel, and Glass Bubble (3M). In the case of the functional filler, it may be masterbatched and mixed in an extrusion compounding step to be described later. When the amount of the functional filler added is less than 10 wt% based on the total coating composition, dispersion of the raw resin such as a thermoplastic resin It is also possible to proceed directly to the dispersion step.

After finishing the final dispersion, the extrusion compounding process is carried out using the above-mentioned coating composition. The compounding extruder to be used at this time uses an extruder equipped with a twin screw (double screw) so as to maximize the dispersibility of the coating composition do. The temperature of the extruder is controlled in the range of 100 to 200 ° C. The dispersed coating composition is fed into a hopper of a twin screw extruder to perform an extrusion process. In the case where the thermoplastic resin as the raw resin of the coating composition is PVC It is preferable to carry out the extrusion process in a temperature range of 150 to 210 ° C.

as I mentioned before. The functional additive (lubricant, pigment, ultraviolet stabilizer, antibacterial agent, functional filler, etc.) used in addition to the above coating composition is subjected to an extrusion compounding process by adding a specific ratio to the extruder hopper using the master batch. Optionally, flame retardants and additives may be first mixed and dispersed in the coating composition and then recycled. In the case of a flame retardant that is sensitive to moisture and gas, an extruder equipped with a twin screw An extrusion compounding process may be carried out to realize an eco-friendly process.

In order to produce a coating yarn having an organic / inorganic composite coating layer, a general high strength yarn such as polyester yarn is used in the present invention, and the high strength yarn is passed through a die nozzle of an extruder, The coating composition thus obtained is applied in a quantitative manner and then wound. As the extrusion coating machine, an extruder equipped with a single screw is used. The coating temperature range is adjustable from 100 to 210 DEG C, and from 150 to 180, in consideration of the melting properties of the thermoplastic resin as the raw material of the yarn and the coating composition, Lt; 0 > C. When the coating temperature is higher than 210 ° C., the core yarn may be melted and carbonized, which is undesirable, and the coating speed can be controlled within the range of 300 to 1000 m / min.

Fabrication of fabrics

The fabric of the present invention is manufactured through a conventional weaving, weaving and tentering process using the coating yarn manufactured by the above-mentioned method.

The regularizing process is a process of winding a warp yarn (longitudinal yarn) on a beam to fit the designed fabric length, density, width and the like. The weaving step is carried out using the lightweight coatings and the above-mentioned coatings.

The term " weaving process " refers to a process of forming a fabric by crossing one or two strands of an upper and lower strands of the above-mentioned coating yarn at right angles to the above-mentioned light use coating yarn according to a predetermined rule. And a tenter stage, which is a process of fixing the width to a constant level.

In the tentering step, the temperature of the tenter may be elevated to 130 to 210 ° C while holding a certain width in the weft direction by holding both sides of the fabric in a tenter unit with a pin or a clip. In this case, The phosphor coating layer is partially melted and adhered firmly to each other and immobilized.

The fabric thus prepared is subjected to a primary heat treatment, followed by a spraying step and a resin fixing heat treatment step. The spraying step is performed on the back surface of the fabric in the same manner as in Fig. 3, wherein the spray coating solution used is a dye or an emulsion liquid which is a mixture of a pigment and a binder, and the dye or pigment may be black or white By using the resin fixing heat treatment step, it is possible to induce adhesion of the fabric as a covering material with an emulsion liquid including a pigment, a dye, a binder and the like, The fabric is completed.

The colors of dyes or pigments contained in the emulsion liquid coated on the back surface of the fabric for sunscreen according to the present invention can be selected from a single color of high color and the irregular mixed color is realized by controlling the arrangement of the nozzles and the quantity of the coating liquid , And it is more preferable to select emulsions of the hyperchromic series in terms of see-through.

In this manufacturing method, the fabrics of Example 1, in which a fabric was produced using a coated yarn in the case of containing the heat-reflecting nanoparticles as shown in Table 1 below, and Comparative Example 1, The energy reflectance, the absorptivity, the transmittance and the g-value were measured for each fabric, and the results are summarized in Table 2. UV-Visible Spectroscopy was used to measure reflectance, absorption and transmittance.

A specific fabric manufacturing step of the present invention was performed as shown in FIG. 3, and briefly described below.

First, the coating composition having the composition as shown in Table 1 was uniformly dispersed and mixed, and then the mixture was transferred to a hopper and extruded (including a transferring, plasticizing, kneading and drawing step at a temperature of about 120 to 130 ° C) And a coating step (SlO) in which the polyester core yarn is thinly coated around the polyester core yarn after a compounding step (S10) of producing chips by cutting. In the coating step, the compound prepared in the form of chips in the compounding step is transferred to a hopper, kneaded and discharged, and is coated and coated on the core yarn which is supplied by a coating device at the end of the extruder and is extruded. And the core yarn has a marine speed of about 700 m / min.

Thereafter, the cloth is subjected to a squeezing step (S30) in which the cloth is subjected to a coating operation in an oblique direction, and then a weaving step (S40) is performed in which the yarns are crossed in an oblique direction and a weft direction. The weaving speed is adjusted to about 280 RPM.

In order to impart shape stability of the woven fabric, after the thermal processing step (S50) is performed at a temperature of about 130 to 150 DEG C at a speed of about 3 to 6 m / min taking into consideration the intersection of the left and right warp and weft yarns, 4, spray coating is performed on the back surface of the fabric by optimizing the nozzle type, the number of nozzles, the fabric speed, the pumping amount, the nozzle-to-nozzle distance, and the distance between the nozzle and the fabric to be coated. Such a spray coating preferably proceeds at a rate of about 2 to 4 m / min at a temperature range of about 80-100 < 0 > C.

Core yarn Organic / inorganic composite coating layer Spray coating solution Thermoplastic resin Heat-reflective fine particles Dyes or pigments bookbinder Example 1 Polyester strong yarn PVC Pyrolysis silica, Car airgel and 3M Glass Bubble White pigment Acrylic / Urethane Comparative Example 1 Polyester strong yarn PVC - White pigment Acrylic / Urethane

100 parts by weight of a PVC resin (LS-100, LG Chem) as a thermoplastic resin, 8 parts by weight of a mixture of pyrolytic silica as a heat-reflecting fine particle, a car aerogel and a glass bubble (3M), and a plasticizer NEO-T, Ake Kyung Oil) 39 parts by weight; 2 parts by weight of a pigment, 2 parts by weight of a functional additive such as a lubricant, an antibacterial agent, a UV stabilizer and a heat stabilizer, 5 parts by weight of a heat stabilizer (RUP-110, Adeka Korea), 15 parts by weight of a composite flame retardant (FRP- And in Comparative Example 1, the same composition was used except for the heat-reflecting fine particles.

In the spray coating solution, a mixture of 22 wt% of acrylic resin / urethane resin binder, 2-propanol and distilled water was used in common for both Example 1 and Comparative Example 1, and as a white pigment, a mixture of R- Were all used in the same amount of 3% by weight.

R _S (Solar reflectance) T _S (Solar transmittance) A _S (Solar absorbance) Total visible light tansmittance (T _V ) g-value Example 1 75.6 8 16.4 7.6 12.1 Comparative Example 1 67 16 21 18 22

In Table 2, Rs (Solar reflectance) denotes the heat reflectance, Ts (Solar transmittance) denotes the heat transmittance, and As (Solar absorptance) denotes the heat absorption rate. The sum of these values is theoretically 100% Total Visible light transmittance refers to the total visible light transmittance. When the Tv value is smaller, the sunlight is less transmitted, the glare phenomenon is less, and the outward sight-through is excellent.

 The g-value indicates the degree to which the heat from the sun is transmitted through the fabric to the backside of the fabric. A lower g-value indicates that the sunlight can be well shielded from external sunlight. For example, Assuming that light (heat) is 100, it means that 10 is transmitted in the form of heat.

This g-value can be obtained as the sum of the secondary conversion values of TS (heat transmission rate) and AS (heat absorption rate). In the case of Ts, it can be obtained by measuring the energy value of the wavelength region in which the sun penetrates directly through the fabric , As means the heat absorbed by pure sunlight (or solar heat) into the fabric, and its quadratic conversion value means the conversion rate that is transmitted to the back side after the heat is accumulated in the one-phase phase.

In comparison of the experimental results of Example 1 and Comparative Example 1, in the case of a fabric produced using a composite yarn including heat-reflecting fine particles, the total visible light transmittance (Tv) was low and the glare phenomenon was small, , And low g-value showed effective blocking effect of outside solar heat.

In addition, Example 2 was prepared by spray coating using the spray coating solution containing a black pigment on the back surface of the fabric of the present invention, which was manufactured in the same manner as in Example 1. Comparative Example 2-1 and Comparative Example 2-2, which were compared with Example 2, were all manufactured by the same manufacturing method except that the heat-reflecting nanoparticles were not included. In Comparative Example 2-1, white pigment, In Comparative Example 2-2, spray coating was carried out using a black pigment.

The composition of the spray coating solution of Example 1 and Comparative Examples 2-1 and 2-2 was the same as that of Example 1 except for the pigment, the R-103 pigment of DuPont was used for the white pigment, For black pigments, K0095 pigment from BASF was used.

The energy reflectance, the absorptivity, the transmittance and the g-value were measured for each of the fabrics thus manufactured in the same manner as in Table 2, and the results are summarized in Table 3.

division Rs Ts As TV g-value Example 2 75.6 8 16.4 4.6 12.1 Comparative Example 2-1 (WHITE) 67 16 21 18 22 Comparative Example 2-2 (BLACK) 3.2 2.2 94.6 2.2 26.6

The result of Table 3 shows that the fabric of Example 2 including the heat-reflecting fine particles, as compared with Comparative Examples 2-1 and 2-2 which do not include the heat-reflecting fine particles, It was confirmed that the total visible light transmission amount (Tv) was low regardless of the color of the pigment coated on the back side, so that the glare phenomenon was small, the visibility was excellent, and the g-value was low, there was.

Lastly, the sunscreen fabric product of Example 2 of the present invention, the product of the conventional aluminum vapor deposition process of VEROSOL Co. (Comparative Example 3-1) and the product of Ferarri Co. (screening of aluminum particles) (Comparative Example 3-2) Comparative performance experiments were conducted under the same conditions. The basic physical properties of the sunscreen fabric product (Example 3) produced by the present invention are shown in Table 4 below.

In the case of the product of VEROSOL of the comparative example 3-1, aluminum was vapor-deposited on a plain glass fiber fabric, and a screen-coated product of Ferarri (comparative example 3-2) Table 5 shows the results of the test for each screen coated product.

Weight (g / ㎡) 500 g / ㎡ ± 5%
Application of 125tex coating paper

Density (/ inch) Slope = 52 x weft = 48 group 2 by 2 (Basket) Porosity (%) About 4%

division Rs Ts As TV g-value Example 3 75.6 8 16.4 4.6 12.1 Comparative Example 3-1 75 5 20 5 14 Comparative Example 3-2 55 10 35 9 18

As can be seen from the results of the comparative experiments of Example 3 and Comparative Examples 3-1 and 3-2 in Table 5, a compound using fine particles (pyrolytic silica, silica airgel, and / or glass bubble) In the case of a sunscreen fabric (Example 3) in which a pigment and a binder are uniformly applied by spraying on the back surface of a fabric to which the method of manufacturing a coating yarn of the present invention is applied, the primary heat reflection or heat It is possible to reduce the diffusion of heat by increasing the absorption rate, and it is also excellent in reflection performance compared with a single color aluminum vapor deposition product, and is excellent also in terms of perspective of the back color.

In addition, the method of producing a sunscreen fabric of the present invention is excellent in price competitiveness compared with existing aluminum vapor deposition products, and is superior in terms of durability against scratch and peeling of a surface due to impact, sunlight, and moisture.

1: deep part 2: sheath
10: core yarn 20: organic / inorganic composite coating layer
30: thermoplastic resin 40: heat-reflecting fine particles
50: spray coating liquid stirring tank 60: spray nozzle
70: Spray coating device

Claims (10)

A backing of a fabric prepared by weaving a coating yarn comprising a polyester strong yarn as a core and a coating layer surrounding the core in a sheath form around the core is coated with a dye or a mixture of a pigment and a binder, In this case,
Wherein the coating layer is an organic / inorganic composite coating layer in which fine particles containing at least one or more of thermally decomposed silica, silica airgel and bubble beads are mixed with a thermoplastic resin,
Characterized in that the binder is an acrylic or urethane binder having a high bonding property with the thermoplastic resin of the coating layer of the coating yarn. The method according to claim 1,
Wherein the total thickness of the coated yarn is 200-800 micrometers and the thickness of the organic / inorganic composite coating layer is 100-500 micrometers. The method according to claim 1,
Wherein the thermoplastic resin used in the organic / inorganic composite coating layer is at least one or more selected from the group consisting of polyvinyl chloride (PVC), polyolefin (PO) and thermoplastic polyolefin (TPO). The method of claim 3,
Wherein the difference in melting point between the core of the coated yarn and the thermoplastic resin used in the coating layer is at least 20 DEG C or more. The method according to claim 1,
Wherein the coating layer of the coated yarn further comprises a phosphorus flame retardant or an inorganic flame retardant. The method according to claim 1,
Wherein said coated yarn has a tensile strength of at least 10 N and an elongation of less than 30%. A compounding step of preparing a dispersion by mixing fine particles comprising at least one of a thermoplastic resin, pyrolytic silica, silica airgel and bubble beads and a plasticizer, and extruding the dispersion to form a chip;
A coating step of forming an organic / inorganic composite coating layer by coating a coated coating material compounded in a chip form around the core yarn;
Weaving a coated yarn with an organic / inorganic composite coating layer to produce a fabric; And
And applying a dye or a mixture of a pigment and a binder to the back surface of the fabric, wherein the binder is an acrylic or urethane binder having a high bonding property with the thermoplastic resin of the coating layer of the coating yarn, ≪ / RTI > 8. The method of claim 7,
Wherein the phosphorus-based flame retardant or the inorganic flame retardant is added in the step of producing the dispersion. 9. The method of claim 8,
Characterized in that the application of a dye or a mixture of a pigment and a binder is carried out in a spraying manner. 8. The method of claim 7,
Wherein a thermal processing step is added prior to the spray application step.

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