JP7291544B2 - See-through suppressing fabric and clothing using the same - Google Patents

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a see-through suppressing fabric and clothing using the same. More specifically, the present invention relates to clothing fabrics that can be comfortably worn even when perspiring and that are less see-through, and clothing using the same.

For sports involving perspiration, it is comfortable to wear anti-perspiration clothing. In conventional clothing, in a wet state such as when perspiring, a film of water (sweat) is formed on the surface of the cloth, reducing breathability and impeding the evaporation of sweat on the skin. This state leads to problems such as increased ineffective perspiration, decreased exercise performance due to increased core body temperature, and increased discomfort. As conventional techniques, Patent Document 1 proposes a knitted fabric having a mesh, and Patent Document 2 proposes attaching a water repellent agent to a mesh knitted fabric. Patent Documents 3 and 4 propose forming a pattern with a color difference ΔE of 10 or more on the surface of a knitted or woven fabric having holes to improve the visual see-through property.

JP 2006-169648 A Japanese Patent Application Laid-Open No. 2006-249610 JP 2017-226948 A Japanese Patent No. 6162858

However, conventional clothing fabrics require formation of through-holes in order to increase breathability, but there is a problem that the through-holes are easily visible. If the through-holes are easily visible, the skin and the inner garment can be seen through, leading to an unattractive appearance.

In order to solve the above conventional problems, the present invention provides a see-through suppressing fabric having through-holes and high air permeability, but in which the through-holes are difficult to see, and clothing using the same.

The see-through suppressing fabric of the present invention is a see-through suppressing fabric containing through holes penetrating in the thickness direction of the fabric, wherein the fabric has a multi-layered structure including a surface layer and a back layer, and both the surface layer and the back layer. There are holes in the fabric, and the portions where the holes in the two layers overlap are through holes, and around the through holes in the fabric, two or more types of threads having a luminance difference of 0.5 or more are arranged. It is characterized by having an evaluation of grade 3.5 or higher according to JIS L 1923:2017 "Method A for evaluating anti-see-through properties of textile products (visual method)".

The clothing of the present invention is characterized by including the above-described see-through suppressing fabric.

The see-through suppressing fabric of the present invention and the clothing using the same have a multi-layered structure including a surface layer and a back layer, holes are present in both the surface layer and the back layer, and a portion where the holes of the two layers are overlapped penetrates. Due to the presence of holes, it is possible to provide a fabric with high air permeability, but with through-holes that are difficult to see, and clothes using the same. That is, since the through-holes deeper than the threads forming the surface layer are partially hidden, the through-holes are hardly visible. As a result, the evaluation according to JIS L 1923:2017 "Method A method for evaluating anti-see-through properties of textile products (visual method)" can be made to grade 3.5 or higher. As a result, it is possible to provide a fabric for clothing that ensures breathability of the fabric, provides coolness to the skin, does not reduce exercise performance, and is comfortable to wear even when perspiring, and clothing using the same.

FIG. 1A is a schematic plan view of a cloth according to one embodiment of the present invention, and FIG. 1B is a schematic cross-sectional view taken along line II of FIG. 1A. FIG. 2 is a surface photograph (magnification 3) of the cloth for clothing in one embodiment of the present invention. FIG. 3 is a back side photograph (magnification 3) of the same. Fig. 4A is a front view showing a measuring device for JIS L 1923:2017 "Method for evaluating anti-see-through properties of textile products A method (visual method)" used in the examples of the present invention, Fig. 4B is a side view of the same, Fig. 4C is an explanatory side view of the same sample table. FIG. 5 shows the fabric of Example 1 of the present invention. FIG. 6 shows fabrics of Comparative Examples 1 and 2. FIG.

The present invention relates to a fabric having through-holes penetrating in the thickness direction of the fabric, and the fabric has a multi-layer structure including a surface layer and a back layer. Multi-layered fabrics include single circular or tricot warp knits, double warp knits, double weft knits, double weaves (warp double fabric, weft double fabric, weft double fabric) including), etc. The fabric has holes (mesh) in both the surface layer and the back layer (hereinafter referred to as "double-sided mesh fabric"). The part where the holes (mesh) of the surface layer and the back layer of the double-sided mesh fabric overlap is a through hole, and this through hole ensures the breathability of the fabric, gives coolness to the skin, and reduces exercise performance. It is possible to provide a cloth for clothing that can be comfortably worn even when perspiring, and clothing using the same.

The holes (mesh) in both layers are preferably arranged in a staggered manner, whereby the holes (mesh) in the back layer are partially hidden by the threads constituting the surface layer, so that the through holes are difficult to see. Become. The partially hidden is preferably 10 to 90%, more preferably 50 to 90%, of the holes (mesh) of the back layer. The surface layer and the back layer may each have grooves in crossing directions, and the crossing points of the grooves on the surface layer and the grooves on the back layer may form through-holes. As a result, the evaluation according to JIS L 1923:2017 "Method A for evaluating anti-see-through properties of textile products (visual method)" can be made 3.5 or higher, and the quality of the fabric can be kept high.

The through-holes can be visually recognized on the white or black back surface, and the presence of the through-holes can be confirmed. The planar shape of the through-hole may be any shape such as a circle, an ellipse, a square, a rhombus, a triangle, a polygon, and an irregular shape. The size of the through-hole is preferably 0.3 mm or more and 25 mm or less, more preferably 0.3 mm or more and 20 mm or less, in the vertical and horizontal directions. Further, the area ratio (opening ratio) of the through holes in the fabric is preferably 3 to 15%, more preferably 5 to 12%. This makes it possible to improve the air permeability of the fabric.

Preferably, the fabric is a double raschel warp knit or a double circular knit. A double raschel warp knitted fabric or a double circular knitted fabric is easy to knit a double-sided mesh fabric. As for the double raschel warp knitted fabric or the double circular knitted fabric, both the surface layer and the back layer are preferably mesh knitted fabrics. When both the surface layer and the back layer of the fabric are knitted mesh, the air permeability is high and the through holes are difficult to see.

The binding yarn of the double raschel warp knitted fabric is preferably a light-reflective yarn. When a light reflective thread is used as the binding thread, the reflection of the light reflective thread gives a flickering feeling, but this flickering feeling has the effect of making the through-holes difficult to see, resulting in a structure in which the through-holes are hard to see.

The light-reflecting yarn is preferably raw silk, bright yarn containing no titanium oxide, core-sheath composite fiber yarn, or the like. The raw silk (Namaito) is a straight yarn that is not a temporary twisted yarn of synthetic fiber filament yarn. In addition, most synthetic fiber filament yarns are semi-dull yarns containing 0.5% by weight of titanium oxide to prevent see-through, and there are also full-dull yarns containing a large amount of titanium oxide to prevent see-through. Bright yarns that do not contain are preferred. The core-sheath composite fiber yarn includes a composite fiber having a core component of polypropylene and a sheath component of polyester (for example, JP-A-2015-232192).

The clothing of the present invention includes the above-described see-through suppressing fabric. As for clothing, it is useful for upper garments such as shirts, lower garments such as pants, hats, arm covers, gloves, and the like. It is especially useful for clothing in hot weather. Also suitable for sports clothing.

In the present invention, the fiber yarn constituting the fabric includes polyester (PET, etc.) fiber yarn, nylon yarn, polyolefin (PP, PE, etc.) yarn, acrylic fiber, cotton spun yarn, cellulose fiber spun yarn such as rayon, and these fibers. mixed yarns, composite spun yarns of short fibers and multifilament yarns (including spun and twisted yarns), and the like.

In the present invention, the fabric preferably has a basis weight of 40 g/m ² or more and less than 300 g/m ² . Thin fabrics are preferred, as they will be used in areas of clothing that perspire a lot. The fabrics of the present invention may be one-way or two-way and may contain elastic yarns such as polyurethane.

It is preferable that two or more types of threads having a brightness difference of 0.5 or more are arranged around the through-hole of the fabric. Here, the periphery of the through-hole of the fabric means 7 mm from the edge of the through-hole. A luminance difference of 0.5 or more is the same as a luminance difference of 50% or more. More preferably, the luminance difference is 0.5 or more and 0.8 or less. The maximum u' chromaticity value can also be measured with the three-dimensional gonio-distribution measuring apparatus. The u' chromaticity maximum value in the present invention is preferably in the range of 0.16 to 0.2. If both the luminance difference and the u' chromaticity maximum value are within the above ranges, the through-hole is less visible. Both the luminance difference and the u' maximum chromaticity can be measured by a commercially available three-dimensional deformation angle distribution measuring device. Proceedings of the Federation Council, pp. 445-448, November 25-26, 2005, Hiroki Maru et al., "Proposal of measurement method and characterization method to replace the brightness evaluation of black textiles", Journal of Textile Engineering (2017) ), Vol 63, No. 2, pages 55-62.

The above-mentioned two or more types of yarns with a luminance difference of 0.5 or more are yarns with different light reflection characteristics due to differences in titanium oxide content, dyeability, filament count number, twist number, etc. realized in combination. Since titanium oxide absorbs light, the light reflection characteristics differ depending on the content. Taking polyester as an example, cationic dyeable polyester and regular polyester differ in dyeability due to the difference in polymer, resulting in different light reflection properties. In addition, the degree of unevenness on the surface of the yarn changes due to the difference in the filament count and the number of twists, resulting in different light reflection characteristics. A combination of bright yarn or semi-dull yarn and cationic crosslinking is preferred. Furthermore, a combination of low-count bright yarn or semi-dull yarn and cationic crosslinking is more preferable. The brightness difference referred to here is a value calculated by the following formula.
Luminance difference (%) = (maximum luminance value of threads composing fabric - minimum luminance value of threads composing fabric)/maximum brightness value of threads composing fabric x 100

The fabric preferably has an air permeability of 100 cm ³ /cm ² ·s or more as measured by JIS L 1096:2010 "Frazier method". A more preferable air permeability is 150 to 300 cm ³ /cm ² ·s. Within the above range, the fabric is breathable, cool to the skin, does not impair exercise performance, and is comfortable to wear even when perspiring.

The thickness of the fabric is preferably 0.3 mm or more, more preferably 0.3 to 1.5 mm, still more preferably 0.5 to 1.1 mm. With the above thickness, the transparency is reduced or eliminated. The thickness was measured according to JIS L 1096 A method.

A cloth for clothing according to a preferred embodiment of the present invention will be described below with reference to the drawings. In the following drawings, the same symbols indicate the same items.
FIG. 1A is a schematic plan view of a cloth according to one embodiment of the present invention, and FIG. 1B is a schematic cross-sectional view taken along line II of FIG. 1A. FIG. 1A is a trace drawing of FIG. The see-through suppressing fabric 1 is a double-sided mesh fabric of double raschel warp knitting. This fabric 1 is formed of a surface layer mesh fabric 2, a back layer mesh fabric 3, and a binding thread 7 connecting the front layer and the back layer. The holes in the back layer are partially hidden by the threads that make up the surface layer. Also, the holes 4 in the surface layer and the holes 5 in the back layer are arranged to be offset, and the portion where the holes 4 and 5 in the two layers overlap serves as a through hole 6 .

FIG. 2 is a photograph of the front side (magnification 3) of the cloth for clothing in one embodiment of the present invention, and FIG. 3 is a photograph of the back side (magnification 3) of the same. The honeycomb (hexagonal) holes in FIGS. 2 and 3 are 4.5 mm long and 2.2 mm wide, and the rhombic holes are 2.2 mm long and 1.5 mm wide. The through-holes are diamond-shaped and each has a length of 1 mm and a width of 1 mm.

Fig. 4A is a front view showing a measuring device for JIS L 1923:2017 "Method for evaluating anti-see-through properties of textile products A method (visual method)" used in the examples of the present invention, Fig. 4B is a side view of the same, Fig. 4C is an explanatory side view of the same sample table. It is described in FIG. 2 in the JIS standard. This transparency measuring apparatus 10 has a white backing 12 and a black backing 13 on the left side and right side of a central sample table 11 having a triangular cross section, and a test piece 14 is placed thereon. A switch operation panel 15 and a common light source (D65) 16 are provided on the upper part, and the illuminance around the test piece 14 is maintained at 1000 to 1500 lux. Reference numeral 17 indicates the line-of-sight direction of the observer. The numerical units of the dimension lines in FIGS. 4A-C are mm.

It is preferable that a water-repellent or hydrophobic region is arranged on at least a portion of the fabric that contacts the through-hole, and a hydrophilic region is arranged on the other portion. As a result, even in a wet state due to perspiration, air permeability of the through-holes is ensured, the effective amount of perspiration is increased, exercise performance is not lowered, and comfortable wear even when perspiration is provided, and clothing using the same is provided. can.

A more specific description will be given below using examples. The present invention should not be construed as being limited to the following examples.
<Measurement of transparency>
It was measured and evaluated according to JIS L 1923:2017 "Method A for evaluating anti-see-through property of textile products (visual method)". This measurement is performed by backing the test piece (white backing: lightness (L ^* ) of 90 or more when measured with a common light source D65 at a field of view of 10°. Black backing: lightness (L ^* ) of 10 or less.) and grade the magnitude of the visual color difference relative to the evaluation gray scale (stain gray scale). Specifically, it is performed as follows.
(1) Place the white backing 12 on the left side of the center of the sample table 11 in FIG. The test piece 14 used was in a dry state.
(2) Place a mask (specified in JIS L 0801) on each of the test piece and the evaluation gray scale (contamination gray scale), and visually observe the size of the difference in color between the left and right backings through the test piece. , graded according to the number of the gray scale for evaluation (grey scale for contamination) that is closest to the difference between the left and right colors. Graded from 1 to 5, with 5 being the best. The grade evaluated as opaque was 3.5 or higher.
(3) The grades of the three test pieces are averaged, and one decimal place is set to 0 or 5 for grade evaluation.
<Measurement of luminance difference and maximum u'chromaticity>
This measurement was performed using a three-dimensional goniodistribution measurement system consisting of a metal halide illumination device (Sigma Koki Co., Ltd.) as a light source, a rod homogenizer (Sigma Koki Co., Ltd.) as a light source, and a 2D Color Analyzer CA-2000 as a camera. used and measured only at an angle of 45°.
<Measurement of structural characteristics of fabric>
A: The length and width of the through-hole were measured using a microscope.
B: The area of through-holes and the total area of through-holes were measured using a microscope (the region where the background color was visible was defined as the area of through-holes).
C: The thickness was measured using a thickness gauge.
<Ventilation volume>
Measured according to JIS L 1096:2010, 8.26.1A "Fragile method".

(Example 1)
A double circular knit mesh fabric was prepared using the polyester (PET) multifilament yarn shown below (FD below is full dull yarn, FLAT is raw silk, and % is mass %. Same below). A photograph of the fabric sample is shown in FIG. This cloth has grooves in the directions intersecting each other in the surface layer and the back layer, and the intersections of the grooves in the surface layer and the grooves in the back layer form through-holes.
FD 40d/36f FLAT 5%
FD 75d/36f 75%
FD 100d/72f 20%
The measurement results of this fabric are summarized in Table 1 below. same as below.

(Example 2)
A double circular knitted mesh fabric was made using the polyester (PET) multifilament yarn shown below (FCD below is a mixed yarn of cationic dyeable polyester and regular polyester, SD is a semi-dull yarn).
FD 40d/36f FLAT 5%
FCD 60d/72f 45%
SD 75d/36f 30%
SD 100d/72f 20%

(Examples 3-6)
A double raschel knitted mesh fabric was made using the polyester (PET) multifilament yarn shown below (CD below is cationic dyeable yarn). Photographs of the fabric samples are shown in Figures 2-3. In this fabric, the holes (mesh) in the surface layer and the back layer are arranged in a staggered manner.
CD 50d/24F 28%
SD 30d/12F FLAT 33%
SD 75d/36F 22%
SD 60d/48F 18%

(Comparative Examples 1 and 2)
Single circular knit mesh fabrics were made using the polyester (PET) multifilament yarns shown below (DTY below is false twisted yarn). A photograph of the fabric sample is shown in FIG.
75D/72F SD DTY 89%
30D/18F SD FLAT 11%

(Comparative Example 3)
A double circular knit mesh fabric was made using the polyester (PET) multifilament yarn shown below.
FD 40d/36f FLAT 5%
FD 75d/36f 75%
FD 100d/72f 20%

(Comparative Example 4)
A double circular knit mesh fabric was made using the polyester (PET) multifilament yarn shown below.
FD44T/36F 8%
SD56T/36F 75%
FD56T/36F 8%
SD66T/48F (water repellent thread) 10%

(Comparative Example 5)
Single warp knitted mesh fabrics were made using the polyester (PET) multifilament yarns shown below.
FD84T/72F 46%
CD84T/36F 54%

(Comparative Example 6)
A double circular knit mesh fabric was made using the polyester (PET) multifilament yarn shown below.
SD 150D/96F 83%
SD 30D/12F 17%

As shown in Table 1, the fabric of Example 1-6 has a relatively high through-hole area ratio, a relatively high air permeability, and a transparency of grade 3.5 or higher, and the through-holes are difficult to see. I was able to confirm that. As a result, it was possible to obtain a fabric for clothing that ensures the breathability of the fabric, gives coolness to the skin, does not deteriorate exercise performance, and is comfortable to wear even when perspiring, and clothing using the same.

The fabric of the present invention may be used for all of sports shirts, T-shirts, inner shirts, briefs, pants, tights, general shirts, briefs, etc., or may be used for part of the sides, back, etc. good.

1 Transparency suppression fabric 2 Surface layer mesh fabric 3 Back layer mesh fabric 4 Surface layer hole 5 Back layer hole 6 Through hole 7 Coupling thread 10 Transparency measuring device 11 Sample table 12 White backing 13 Black backing 14 Test piece 15 Switch operation panel 16 Regular light source (D65)
17 Observer's line of sight

Claims (12)

A see-through suppressing fabric including through holes penetrating in the thickness direction of the fabric,
The fabric has a multi-layered structure including a surface layer and a back layer, and holes are present in both the surface layer and the back layer,
A portion where the holes of the two layers overlap is a through hole,
Two or more types of threads having a luminance difference of 0.5 or more are arranged around the through-hole of the fabric,
JIS L 1923: 2017 "Method for evaluating the anti-transparency of textile products Method A (perceptual method)" is rated at grade 3.5 or higher. The see-through suppressing fabric according to claim 1, wherein the through-holes are visible on a white or black back surface. The see-through suppressing fabric according to claim 1 or 2, wherein the size of the through-holes is 0.3 mm or more and 25 mm or less in the vertical and horizontal directions. The see-through suppressing fabric according to any one of claims 1 to 3, wherein an area ratio of the through-holes in the fabric is 3 to 15%. The see-through suppressing fabric according to any one of claims 1 to 4 , wherein the fabric is a single circular knitting or tricot warp knitting, a double raschel warp knitting fabric, or a double circular knitting fabric including a portion where yarns are aligned. The see-through suppressing fabric according to any one of claims 1 to 5 , wherein both the surface layer and the back layer of the fabric are mesh knitted fabrics. The see-through suppressing fabric according to any one of claims 1 to 6 , wherein the fabric has an air permeability of 100 cm ³ /cm ² ·s or more as measured by JIS L 1096:2010 "Fragile method". The see-through suppressing fabric according to any one of claims 1 to 7 , wherein the fabric has a thickness of 0.3 mm or more measured according to JIS L 1096 A method. The see-through suppressing fabric according to any one of claims 1 to 8 , wherein the holes of the two layers are arranged so as to be offset so that the holes of the back layer are partially hidden by the threads forming the surface layer. The transparency suppression according to any one of claims 1 to 9 , wherein the surface layer and the back layer have grooves in directions that intersect each other, and intersections of the grooves on the surface layer and the grooves on the back layer form through holes. material. Clothing comprising the see-through suppressing fabric according to any one of claims 1 to 10 . 12. The garment according to claim 11 , wherein said garment is a sports garment.

Images