KR102564493B1 - Combination black-out blind fabric to realize pure white color improved shading ratio - Google Patents

Abstract

In the present invention, in a combi-type blackout blind fabric in which light-shielding parts and light-transmitting parts are formed alternately, the light-shielding part has a triple fabric structure of an intermediate layer between the outer layers of both sides exposed to the outside, and the outer layer warp is between polyester LM (Low Melt) , The weft yarn is polyester FD (full dull) yarn, and the middle layer is formed by interlacing the middle yarn with the warp or weft yarn of the outer layer. By forming a double covering yarn that is wound crosswise in a spiral form along the longitudinal direction of the yarn yarn, the light reflectance on the surface of the light-shielding part is reduced, and while the light-shielding function is expressed, the color of the light-shielding part is not deteriorated, and it is beautifully recognized from the outside. It is a combination blind fabric that can be.

Description

Combination black-out blind fabric to realize pure white color improved shading ratio}

The present invention relates to a combi-type blind fabric, and more particularly, to a combi-type blackout blind fabric that realizes a pure white color by improving the light-shielding rate in a light-shielding fabric made of multiple weaves to block external light.

Blinds are installed in a glass window or a glass wall space such as a living room, room, office, etc. to block external light or line of sight incident into the room or to adjust the amount of sunlight. Depending on the structure or material, there are various types of blinds such as roll blinds, wood blinds, and vertical blinds. Combi blinds, which are double roll blinds, are widely used.

A typical combination blind is shown in FIG. 5, and is composed of a combination blind fabric (1) wound in two layers on the front and back sides between the winding rod (2) at the top and the weight rod (3) at the bottom. The combination blind fabric 1 is formed by alternating a light transmitting portion 1a made of a mesh material and capable of transmitting light and a light blocking portion 1b made of multiple weave and capable of blocking light in a vertical direction. Therefore, when the winding bar 2 is rotated forward or backward to place the light emitting part 1a on the front side and the light emitting part 1a on the back side of the fabric 1 in a straight line, light from the outside is introduced into the inside, External light can be blocked by placing the light transmitting part 1a and the light blocking part 1b on the rear side in a straight line.

Such a light-shielding portion (1b), as disclosed in "Uncoated lightweight shade fabric" of Korean Patent Registration No. 10-1564528, has a color that can beautifully decorate the interior through an intermediate layer that can block external light. The surface layers on both sides formed by are formed in a triple weave. The light blocking portion 1b blocks light by forming an intermediate layer of do-dyed yarn mixed with carbon black and interposing it between the surface layers on both sides so that external light does not pass through a plurality of fine gaps between the fibers constituting the surface layer.

The black intermediate layer mixed with carbon black can effectively block light by absorbing light, but there is a problem in that the visual perception of the observer is deteriorated due to the difference between the light reflected from the surface and the inside of the light-shielding portion 1b formed of multiple weave. . In other words, most of the light incident through the blind is absorbed by the middle layer, but is reflected by the surface layer. In particular, when the surface layer is made of bright colors such as ivory, beige, or white, the difference in reflectance with the middle layer is large, so the color of the surface layer appears to the observer. may be perceived distortedly.

In particular, as the blinds are required to play a role as an interior material that improves the aesthetics of the room together with the indoor light control function, the aesthetic sense recognized from the outside together with the light control is important.

In addition, Korean Registered Patent No. 10-2269933 discloses that a diffuse reflection layer is formed inside the light-shielding portion made of multiple weave to block external light, thereby reducing the difference in light reflectance on the surface of the light-shielding portion, thereby exhibiting the light-shielding function and improving the color of the light-shielding portion. We provide a combination blind fabric that can be recognized beautifully from the outside without deterioration, but when white color is implemented by placing black dyed yarn on the inner layer and white dyed yarn on the outer layer, the inner layer yarns are seen through and the outer layer white yarn saturation problem. There is a tendency for the whiteness of the image to drop slightly.

Republic of Korea Patent Registration No. 10-1564528 (Title of Invention: Uncoated lightweight shade fabric) Republic of Korea Patent Registration No. 10-2269933 (Title of Invention: Combi blind fabric capable of realizing pure white color on the surface by reducing the difference in reflectance of the surface of the multi-weave light-shielding part)

The present invention was invented to solve the above-mentioned problems of the conventional combination blind fabric, and an object of the present invention is to provide a combination blind fabric that can be beautifully recognized without color distortion from the outside together with indoor lighting control.

Therefore, the present inventors weave the blackout blind fabric in multi-layer, but the black color color is reflected on the surface by using black dye yarn in the inner layer, so if the outer layer yarn is colored white, the surface color looks distorted It is to improve the disadvantages of existing blackout blinds such as phenomenon to implement pure white and to provide a combination blackout blind fabric that can replace relatively expensive and heavy dyed yarn materials.

In order to solve the above technical problem, the present invention is a combination-type blackout blind fabric in which light-shielding parts and light-transmitting parts are formed alternately, wherein the light-shielding part is a three-layer fabric structure of an intermediate layer between the outer layers on both sides exposed to the outside, and the outer layer The silver warp yarn is made of polyester LM (low melt) yarn, the weft yarn is made of polyester FD (full dull) yarn, and the middle layer is formed by interlacing the middle yarn with the warp or weft yarn of the outer layer. An ester black dope yarn is used and the covering yarn surrounding the outer circumference is a polyester FD yarn, which is a double covering yarn wound crosswise in a spiral form along the length direction of the yarn to form a composite yarn (y).

In the present invention, the dope yarn is preferably a 300de dope yarn, the covering yarn is preferably polyester 75de FD, and the outer layer yarn and the intermediate yarn are preferably of a flat cross section that increases the yarn area on the fabric surface.

In the present invention, the covering yarn contains 2.5 to 3% of TiO ₂ . It is preferable that it is a composite processed yarn containing or wound with 300 ~ 800TM on the outer circumference of the dyed yarn.

The combi-type blackout blind fabric of the present invention uses polyester LM yarns for the outer layer ramp, so that the LM yarns are partially melted and bound to the weft yarns during tenter processing after weaving, maintaining shape stability and filling the gap between the warp and weft yarns, thereby reducing light It prevents penetration and see-through of the light-shielding part, and by using polyester FD yarn as weft and covering yarn, the ratio of outer layer dyed yarn and middle layer dyed yarn can be lowered, reducing the thickness and weight of the job, and the light blocking rate (99 %↑) maintenance, whiteness, and saturation are improved to express pure white (L value 88↑), so bright colors such as pastel tones are possible through diversification of expression colors.

1 is a cross-sectional view showing the structure of a blind fabric according to the present invention.
2 is a front view of a composite yarn constituting an intermediate layer according to an embodiment of the present invention.
3 is a comparison between flat cross-section yarns and general circular cross-section yarns used in the present invention.
4 is a photograph comparing an embodiment of the present invention with Comparative Examples 1 and 2.
5 is a perspective view of a general combination blind.

Hereinafter, embodiments of the present invention will be described in detail with reference to the accompanying drawings.

This embodiment is provided to more completely explain the present invention to those with average knowledge in the art, and the shape of the elements in the drawings, the size of the elements, the spacing between elements, etc. are emphasized for clearer explanation. It can be exaggerated or reduced to express.

In addition, in the description of the embodiments, if it is determined that the technical features of the present invention may be unnecessarily obscured as matters already obvious to those skilled in the art, such as known functions or known configurations related in principle, the detailed I will omit the explanation.

The term 'fiber' in the present invention refers to a natural or artificial linear polymer object that is long, thin, and softly bendable, and the term 'covering' refers to wrapping (covering) a core yarn with another yarn. it means.

1 is a cross-sectional view showing the structure of a blind fabric according to the present invention. Referring to this, the light blocking portion of the combi blind fabric is formed by interposing an intermediate layer 200 between the surface layers 100 on both sides exposed to the outside.

The middle yarn uses polyester black dyed yarn as a yarn, and the covering yarn that wraps the outer circumference is a polyester FD yarn, which is a double covering yarn that is wound crosswise in a spiral form in a double cross along the length direction of the yarn, forming a composite yarn (y).

The surface layer 100 is woven in plain weave with weft and warp yarns, and the middle layer 200 is composed of a single composite yarn (Y) arranged in warp or weft yarns and is interwoven with the weft yarn 110 or warp yarn 120 of the surface layer 100. As it is, the surface layer 100 and the middle layer 200 on both sides are formed in a triple weave. As such, the surface layer 100 of the combination blind fabric 10 formed in a triple weave creates a beautiful indoor atmosphere exposed to the outside, and the intermediate layer 200 interposed therebetween blocks incident external light.

In addition, by using polyester LM yarns for the outer layer warp, the LM yarns are partially melted and bound to the weft yarns during tenter processing after weaving to maintain shape stability, and to fill the gap between the warp and weft yarns to prevent light transmission and light blocking phenomenon, and by using polyester FD yarn as weft and covering yarn, even though the ratio of outer layer dyed yarn and middle layer dyed yarn is lowered, it contains a large amount of TiO ₂ (2.5~3%) compared to bright or semi-dull yarn, so it does not reflect light. And non-invasiveness can be minimized.

2 is a cross-sectional view of a composite yarn (Y) used as an intermediate layer 200 according to an embodiment of the present invention. Referring to this, composite yarn (Y) forming the intermediate layer 200 is a black dope yarn as an intermediate yarn. When used, it is possible to obtain a light blocking rate of over 90%, so it is possible to realize sufficient blackout, but the color of the dyed yarn affects the surface of the blind and the whiteness deteriorates. To solve this problem, the surface of the black dyed yarn is double covered with polyester FD Thus, the decrease in whiteness can be minimized while maintaining the blackness.

The covering yarn must be wound with an appropriate number of twists around the outer periphery of the light absorbing layer. If the number of twists is low, the ratio of light reflected from the middle layer is high, so the color of the surface layer cannot be expressed from the outside. As the strength is weakened, it is appropriate for the covering yarn 221 to be wound with a twist number of 300 to 800TM, preferably 500 to 700TM.

Figure 3 is a comparison between the flat cross-section yarn and general circular cross-section yarn used in the present invention, and the light reflectance on the fabric surface is increased by the flat cross-section.

Examples and comparative examples of the present invention constituted as described above will be described below.

<Example>

Polyester LM yarn 50/24de for the outer layer ramp 9620 warp yarn, polyester DTY 150/48de for the outer layer yarn for the weft yarn, polyester DTY 300/96de for the middle yarn, polyester 75de for the dope yarn containing 2.5% by weight of carbon black As a result of weaving in a triple weave plain weave using a composite yarn double-covered with FD, the thickness was 0.5 mm and the weight was 150 g/m ² .

<Comparative Example 1>

250 denier polyester draw-twist yarn mixed with a beige colorant is used as the warp and weft yarns of the surface layer, and a polyester dope-dyed yarn mixed with 2.5% by weight of carbon black is used as the center yarn to weave in warp and plain weave of the surface layer. Thus, a triple-weave light-shielding part was woven.

<Comparative Example 2>

The middle layer was woven as in Comparative Example 1 by arranging a composite yarn in which a beige-colored covering yarn was wound with 450TM twist on the outer circumference of a polyester dyed yarn in which 2.5% by weight of carbon black was mixed.

<Experimental Example> Measurement of reflectance and saturation of the light-shielding part

<1-1> Visual measurement

Figure 4 is an enlarged photograph of the surfaces of the prepared example and Comparative Examples 1 and 2, as shown in Figure 4, comparing the Example and Comparative Examples 1 and 2, the beige color of the surface layer is more vivid and beautiful It was confirmed that it was recognized. This is assumed to be that the difference between the light reflected from the surface layer and the middle layer is small in the examples, but in Comparative Examples 1 and 2, the whiteness visible to the naked eye tends to drop somewhat due to the problem of the black dyed yarn of the middle layer being seen through.

<1-2> CCM (Computer color matching) measurement

Table 1 shows the results of measuring reflectance and chroma of Examples and Comparative Examples 1 and 2 using CCM (computer color matching, color i5, x-rite).

Shading rate (%) saturation Example Comparative Example 1 Comparative Example 2 Example Comparative Example 1 Comparative Example 2 99↑ 82.64 94.99 1.2 13.58 1.29

As shown in Table 1 above, it was confirmed that Example was perceived as a clearer and brighter color than Comparative Examples 1 and 2.

The present invention described above is not limited to the described embodiments, and it is obvious to those skilled in the art that various modifications and variations can be made without departing from the spirit and scope of the present invention. Therefore, such variations or modifications should fall within the scope of the claims of the present invention.

100: surface layer 110: weft
120: slope 200: middle layer

Claims (5)

In the combi-type blackout blind fabric in which light-shielding parts and light-transmitting parts are formed alternately,
The light blocking portion is a triple fabric structure of an intermediate layer between outer layers on both sides exposed to the outside,
The outer layer is made of polyester LM yarn for the warp yarn and polyester FD yarn for the weft yarn,
The middle layer uses a polyester dyeing yarn as a screening, and the covering yarn surrounding the outer periphery is a polyester FD yarn, which is made of a double covering yarn wound in a spiral shape in a double cross along the longitudinal direction of the screening,
The outer layer and the middle layer are formed by interlacing the intermediate yarn with the warp or weft yarn of the outer layer,
Combination-type blackout blind fabric, characterized in that the outer layer yarn and the intermediate yarn are flat cross-section yarns that increase the yarn area of the fabric surface.
The combi-type blackout blind fabric according to claim 1, wherein the dope yarn uses a 300de dope yarn, and the double covering uses a 75de FD.
delete The method of claim 1, wherein the covering yarn contains 2.5 to 3% by weight of TiO ₂ . Combi-type blackout blind fabric, characterized in that it is a composite processing yarn containing.
The combi-type blackout blind fabric according to claim 1, wherein the covering yarn is 300 to 800TM.