Clothing fabric and clothing including the same

Abstract

To provide a clothing fabric for which wearing comfort is improved by moistening and cooling air that passes through a fabric and is taken into a clothing in a state of much perspiration, and a clothing including the same.SOLUTION: A clothing fabric 1 of the present invention includes a surface layer 2, a rear surface layer 3, and an intermediate layer 4. The intermediate layer 4 consists of a connection part in which a connection yarn 5 for connecting the surface layer 2 and the rear surface layer 3 exists and a space part in which the connection yarn does not exist. A fabric through hole 8 penetrating the fabric in a thickness direction is formed of a surface through hole 6 penetrating the surface layer 2 in a thickness direction and a rear surface through hole 7 penetrating the rear surface layer in a thickness direction and the space part of the intermediate layer. At least one fiber yarn (I) selected from a group consisting of a hydrophobic fiber yarn and a water-repellent fiber yarn is disposed on a portion of the connection yarn 5 in the surface layer 2, the rear surface layer 3, and the intermediate layer, while a hydrophilic fiber yarn (II) is disposed in the other portion. A ratio of an area at which the air passing through the through hole comes in contact with the hydrophilic fiber yarn (II) in terms of clothing unit area is 20% or more.SELECTED DRAWING: Figure 3

Description

[Technical Field]

[0001] The present invention relates to a clothing fabric that provides improved comfort when worn under conditions of heavy sweating, and to clothing including the same. [Background technology]

[0002] Heavy sweating in hot weather or during exercise can cause discomfort, such as stickiness and wetness. To improve comfort during heavy sweating, efforts have been made to improve the sweat absorption and quick-drying properties of clothing fabrics and their breathability in wet conditions. For example, Patent Document 1 describes a knitted fabric made of polyester-based synthetic fibers, with normal pressure cationic dyeable polyester fibers used on at least part or all of the skin-facing surface, that has been subjected to a water absorption treatment. When subjected to a wind speed of 2 m / sec at a water absorption rate of 100% by weight, the temperature at a position 10 mm downwind from the knitted fabric on the opposite side from the air blowing side is reduced by 4.0°C or more compared to the ambient air temperature. Patent Document 2 describes an evaporative cooling fabric with one or more convex portions on the periphery, a crimp rate of substantially 0%, and synthetic fibers with a flat cross-section arranged on the skin-facing side. Patent Document 3 describes a fabric having through holes, with water-repellent or hydrophobic regions arranged in at least a portion of the area in contact with the through holes, and hydrophilic regions arranged in other areas, and when the fabric is moistened with 300% water relative to 100% of its weight and hung with the through holes oriented vertically, the through holes maintain voids. [Prior art documents] [Patent documents]

[0003] [Patent Document 1] Japanese Patent Application Laid-Open No. 2015-124459 [Patent Document 2] Japanese Patent Application Publication No. 2019-81981 [Patent Document 3] Patent No. 6404507 Summary of the Invention [Problem to be solved by the invention]

[0004] However, although the fabrics described in Patent Documents 1 and 2 have the effect of cooling the heat of vaporization caused by the evaporation of sweat, they have low breathability when sweating heavily, making it difficult for outside air to pass through the fabric when sweating heavily.The fabric described in Patent Document 3 has high breathability when sweating heavily, but it does not absorb much sweat, so it may have poor evaporative cooling performance.

[0005] In order to solve the above-mentioned conventional problems, the present invention provides a clothing fabric and clothing including the same, which improves wearing comfort by moistening and cooling the air that passes through the fabric and is taken into the clothing when heavy sweating occurs. [Means for solving the problem]

[0006] The present invention relates to a clothing fabric comprising a surface layer, a back layer, and an intermediate layer, wherein the intermediate layer is composed of connecting portions where connecting yarns connecting the surface layer and the back layer are present and space portions where the connecting yarns are not present, the surface layer has surface through-holes that penetrate in the thickness direction, the back layer has back through-holes that penetrate in the thickness direction, the surface through-holes, the back through-holes, and the space portions form fabric through-holes with a three-dimensional structure that penetrate in the thickness direction of the fabric, and one or more fiber yarns (I) selected from the group consisting of hydrophobic fiber yarns and water-repellent fiber yarns are arranged in some of the connecting yarns of the surface layer, the back layer, and the intermediate layer, and hydrophilic fiber yarns (II) are arranged in other parts, and the ratio of the area where air passing through the fabric through-holes comes into contact with the hydrophilic fiber yarns (II) is 20% or more, calculated per unit area of ​​the fabric.

[0007] The present invention also relates to clothing comprising the clothing fabric. [Effects of the Invention]

[0008] The present invention can provide a clothing fabric and clothing including the same that improve wearing comfort by moistening and cooling air that passes through the fabric and is taken into the clothing when heavy sweating occurs. [Brief explanation of the drawings]

[0009] [Figure 1] 1 is a schematic plan view of a clothing fabric according to an embodiment of the present invention. FIG. [Figure 2] FIG. 2 is a schematic back view of the clothing fabric of one embodiment of the present invention. [Figure 3] 1 is a schematic cross-sectional view of a clothing fabric according to one embodiment of the present invention. [Figure 4] 1 is a schematic cross-sectional view of a clothing fabric according to one embodiment of the present invention. [Figure 5] FIG. 10 is a schematic cross-sectional view of a fabric through-hole having a three-dimensional structure. [Figure 6] FIG. 10 is a schematic cross-sectional view of a fabric through-hole having a two-dimensional structure. [Figure 7] 10 is a schematic cross-sectional view illustrating the area of ​​contact between air passing through a fabric through-hole of a three-dimensional structure and fiber yarns around the fabric through-hole. FIG. [Figure 8] 10 is a schematic cross-sectional view illustrating the area of ​​contact between air passing through a fabric through-hole of a two-dimensional structure and fiber yarns around the fabric through-hole. FIG. [Figure 9] 10 is a schematic explanatory diagram of the area of ​​contact between air passing through a fabric-through hole and hydrophilic fiber yarns around the fabric-through hole. FIG. [Figure 10] FIG. 1 is a schematic explanatory diagram of an evaluation device for evaluating the cooling effect of dough. [Figure 11] 1 is a plan photograph (magnification: 20 times) of the knitted fabric of Example 1. [Figure 12] 1 is a photograph (magnification 20 times) of the back surface of the knitted fabric of Example 1. [Figure 13] 1 is a plan photograph (magnification: 20 times) of the knitted fabric of Example 2. [Figure 14] 1 is a photograph (magnification: 20x) of the back of the knitted fabric of Example 2. [Figure 15] 1 is a plan photograph (magnification: 20 times) of the knitted fabric of Comparative Example 1. [Figure 16] 1 is a photograph (magnification 20 times) of the back surface of the knitted fabric of Comparative Example 1. [Figure 17] 1 is a plan photograph (magnification: 20 times) of the knitted fabric of Comparative Example 2. [Figure 18] 1 is a photograph (magnification 20x) of the back surface of the knitted fabric of Comparative Example 2. [Figure 19] 1 is a plan photograph (magnification: 20 times) of the knitted fabric of Comparative Example 3. [Figure 20] 1 is a photograph (magnification: 20 times) of the back surface of the knitted fabric of Comparative Example 3. [Figure 21] 1 is a plan photograph (magnification: 20 times) of the knitted fabric of Comparative Example 4. [Figure 22] 1 is a photograph (magnification 20 times) of the back surface of the knitted fabric of Comparative Example 4. [Figure 23] 1 is a plan photograph (magnification: 20 times) of the knitted fabric of Comparative Example 5. [Figure 24] 1 is a photograph (magnification 20x) of the back surface of the knitted fabric of Comparative Example 5. [Figure 25] 1 is a cross-sectional photograph (magnification: 20 times) of the knitted fabric of Example 1. [Figure 26] 1 is a cross-sectional photograph (magnification: 20 times) of the knitted fabric of Comparative Example 2. [Figure 27] This is a photograph (top photo magnification: 30x; bottom photo enlarged: 150x) showing how the area of ​​contact between air passing through a fabric hole and the hydrophilic fiber yarn surrounding the fabric hole is measured using a microwatcher. DETAILED DESCRIPTION OF THE INVENTION

[0010] The inventors of the present invention have conducted extensive research into improving the cooling performance of air taken into clothing when heavy sweating occurs. As a result, they found that by (1) making the fabric a three-layer structure consisting of a surface layer, a back layer, and an intermediate layer composed of connecting sections where connecting threads connecting the surface layer and the back layer are present and spaces where the connecting threads are not present, and by forming a three-dimensional structure of fabric through-holes that penetrate the thickness direction of the fabric at the surface through-holes, back through-holes, and spaces, and (2) arranging one or more fiber threads (I) selected from the group consisting of hydrophobic fiber threads and water-repellent fiber threads in some of the connecting threads of the surface layer, back layer, and intermediate layer, and arranging hydrophilic fiber threads (II) in other parts of the connecting threads of the surface layer, back layer, and intermediate layer, and setting the area of ​​contact between the air passing through the fabric through-holes and the hydrophilic fiber threads (II) around the fabric through-holes within a predetermined range, converted per unit area of ​​the fabric, the breathability of the fabric can be maintained in heavy sweating conditions, the area of ​​contact between the air passing through the fabric and the sweat moisture absorbed by the fabric can be increased, and the performance of moist-cooling the air taken into the garment can be improved.

[0011] Specifically, in the case of clothing made from the fabric of one or more embodiments of the present invention, when the fabric (clothing) is wet due to heavy sweating during exercise, air outside the clothing (outside air) can be drawn into the clothing through the fabric, lowering the air temperature. The principle is that sweat moisture absorbed by the fabric evaporates when it comes into contact with air drawn into the clothing from outside the clothing (external environment) through the fabric during exercise. The air drawn in from outside the clothing absorbs heat and becomes cooler. This cooler air circulates within the clothing, lowering the temperature of the air inside the clothing, improving the ability of heat on the body surface to be dissipated into the environment within the clothing, improving the cooling effect and providing excellent wearing comfort during heavy sweating. To maximize the use of evaporative heat and enhance the cooling effect, it is necessary to increase the amount of contact between the air passing through the fabric and sweat. Therefore, it is necessary to retain a large amount of sweat in the fabric through-holes, which act as vents for introducing air from outside the garment into the garment. If a water film forms around the fabric through-holes, air cannot be introduced. Therefore, to prevent this, hydrophobic and / or water-repellent regions are arranged around the fabric through-holes, while the area of ​​the hydrophilic regions around the fabric through-holes is maximized. This increases the area where the air introduced into the garment comes into contact with the sweat absorbed in the hydrophilic regions, thereby enhancing the cooling effect. For example, it is possible to achieve a cooling effect of 2°C or more even at a distance of 5 cm or more from the fabric. By forming a space between the front and back layers of the fabric and connecting the front layer through-holes and the back layer through-holes to form a three-dimensional fabric through-hole structure, the area through which air can pass is secured. Furthermore, by arranging hydrophilic fiber yarns around the fabric through-holes, the amount of contact between the air passing through the fabric and sweat can be increased, thereby enhancing the cooling effect during heavy sweating.

[0012] One or more fiber yarns (I) selected from the group consisting of hydrophobic fiber yarns and water-repellent fiber yarns are arranged in some of the connecting yarns in the front layer, back layer, and intermediate layer. In this way, the clothing fabric includes one or more fiber yarns (I) selected from the group consisting of hydrophobic fiber yarns and water-repellent fiber yarns, and the fiber yarns (I) are arranged in at least a part of the clothing fabric, such as at least a part around the fabric-through holes, which makes it easier for moisture to move in the fabric and makes it easier to maintain the fabric-through holes even when the clothing fabric is hung vertically from the ground in a wet state, thereby maintaining breathability.

[0013] The fiber yarn (I) can be any type, including spun yarn, multifilament yarn, and crimped multifilament yarn. Examples of hydrophobic fiber yarns include fiber yarns made of hydrophobic fibers such as polypropylene, polyethylene, and polyester. Examples of water-repellent fiber yarns include water-repellent yarns made of organic fiber yarns. Examples of organic fiber yarns include fiber yarns containing natural and / or synthetic fibers. From the viewpoint of quick-drying properties, water-repellent yarns made of hydrophobic fiber yarns are preferred. Specifically, the fiber yarn (I) is preferably at least one selected from polypropylene fiber yarns, polyester (PET, etc.) water-repellent yarns, acrylic water-repellent yarns, nylon water-repellent yarns, acetate water-repellent yarns, and ethylene vinyl alcohol water-repellent yarns. The water-repellent yarns may be treated as fibers or threads, or as fabrics.

[0014] The water-repellent treatment can be carried out as follows, without any particular limitation: for example, a method in which the yarn is rewound into a cheese shape and immersed in a water-repellent treatment agent, followed by a dry cure to cause a crosslinking reaction; a method in which a false twisting machine or twisting machine equipped with a water-repellent treatment agent application device is used to repeatedly apply the water-repellent treatment agent to the yarn on these machines, followed by a dry cure to cause a crosslinking reaction; a method in which a water-repellent treatment agent application device is installed on a spinning / drawing machine in the raw yarn production stage, the water-repellent treatment agent is applied to the yarn on these machines, followed by a dry cure to cause a crosslinking reaction;

[0015] The water repellent may be any of those commonly used as water repellents for synthetic fibers, such as silicone-based water repellents and fluorine-based water repellents. Among these, fluorine-based water repellents are preferred from the viewpoint of durability. Furthermore, from the viewpoint of durability, aminoplast resins, polyfunctional blocked isocyanate group-containing urethane resins, ethylene carbonate, and the like may be added to the water repellent.

[0016] Hydrophilic fiber yarns (II) are arranged in the other parts of the connecting yarns in the front layer, back layer, and intermediate layer. The inclusion of hydrophilic fiber yarns (II) in the clothing fabric allows it to absorb sweat excreted from the body surface. Furthermore, by arranging the hydrophilic fiber yarns (II) in at least a part of the periphery of the fabric through-holes to form hydrophilic regions, air passing through the through-holes can come into contact with sweat moisture absorbed in the hydrophilic regions of the fabric in a wet state, thereby moistening and cooling the air.

[0017] The hydrophilic fiber yarn (II) can be any type of spun yarn, multifilament yarn, or crimped multifilament yarn. Examples of hydrophilic fiber yarn include, but are not limited to, cellulose fiber spun yarns such as cotton, rayon, acetate, and triacetate; nylon fiber yarns; blended yarns of these fibers with polyester fibers; composite spun yarns (including spun and twisted yarns) of these fibers with polyester (PET, etc.) multifilament yarns; polyester hydrophilically treated yarns obtained by hydrophilizing polyester fiber yarns; acrylic hydrophilically treated acrylic fiber yarns; and polyurethane hydrophilically treated polyurethane fiber yarns. The hydrophilically treated yarns may be made using a hydrophilized resin, may be hydrophilized in the form of fibers or yarns, or may be hydrophilized in the form of fabric. The fiber yarn (II) may be a single hydrophilic fiber yarn, or two or more hydrophilic fiber yarns may be used in combination.

[0018] The hydrophilization treatment of fiber yarns or fabrics is not particularly limited, and can be carried out as follows. For example, there are methods in which the fabric is hydrophilized in a bath simultaneously with dyeing in the dyeing process, or after dyeing, the fabric is immersed in a bath containing a hydrophilic substance and then dry-cured to cause a crosslinking reaction; a method in which a yarn is rewound into a cheese shape and immersed in a hydrophilic substance and then dry-cured to cause a crosslinking reaction; a method in which a false twisting machine or twisting machine equipped with a hydrophilic substance application device is used to repeatedly apply a hydrophilic substance to the yarn on these machines and then dry-cured to cause a crosslinking reaction; a method in which a hydrophilic substance application device is installed on a spinning / drawing machine in the raw yarn production stage and a hydrophilic substance is applied to the yarn on these machines and then dry-cured to cause a crosslinking reaction. When a fabric knitted with fiber yarns (I) and (II) is hydrophilized in a bath simultaneously with dyeing in the dyeing process, only fiber yarn (II) can be made hydrophilic while fiber yarn (I) maintains its hydrophobic and water-repellent properties.

[0019] The hydrophilic substance is not particularly limited, but for example, when used in a hydrophilization treatment of polyester fibers, polyethylene glycol, which is a water-absorbing agent having affinity with polyester fibers, or a block copolymer obtained by block polymerization of terephthalic acid and polyethylene glycol can be used.

[0020] When the total amount of the fiber thread (I) and the hydrophilic fiber thread (II) in the clothing fabric is taken as 100 parts by weight, the weight ratio of the fiber thread (I) to the hydrophilic fiber thread (II) is preferably (I):(II)=1:99 to 30:70, more preferably 4:96 to 25:75, and even more preferably 5:95 to 20:80. When the weight ratio of the fiber thread (I) to the fiber thread (II) is within the above range, sweat can be easily absorbed and retained, and the voids of the through-holes can be maintained when wet.

[0021] The clothing fabric has a three-layer structure consisting of a surface layer having surface through-holes, a back layer having back through-holes, and an intermediate layer composed of connecting portions where connecting threads connecting the surface layer and the back layer are present and spaces where no connecting threads are present, and the surface through-holes, back through-holes, and spaces form three-dimensional fabric through-holes. As the fabric through-holes include spaces formed between the surface layer and the back layer of the fabric, the area of ​​contact between the air passing through the fabric through-holes and the hydrophilic fiber yarns (II) increases, and the contact efficiency between the air passing through the fabric through-holes and sweat moisture absorbed by the fabric increases, improving the moist cooling effect of the air. It is also preferable to use multiple connecting yarns in the intermediate layer. Using multiple connecting yarns allows for more efficient formation of connecting portions that improve the dimensional stability of the fabric and voids that improve the moist cooling effect. Connecting yarns that are not positioned at the same positions in the thickness direction as the front and back through-holes can improve the dimensional stability of the fabric by continuously knitting the portions connecting the front and back layers. Connecting yarns that are positioned at the same positions in the thickness direction as the front and back through-holes can form voids by intentionally skipping the yarn (for example, by making a mistake or tucking) between the knitted portions connecting the front and back layers. In this way, using multiple connecting yarns allows for efficient formation of both connecting portions and voids, effectively achieving the dimensional stability of the fabric and the moist cooling effect of the air.

[0022] The clothing fabric may be any fabric that forms a space between the front and back layers of the fabric through an intermediate layer, allowing for the formation of three-dimensional through-holes. From the standpoint of breathability, knitted fabrics are preferred, with double raschel being particularly preferred. Among double raschel fabrics, those that are made thicker by increasing the distance between the hooks under knitting conditions are even more preferred, as they facilitate an increase in the cross-sectional area of ​​the fabric through-holes through which air passes. Furthermore, it is preferable to arrange the front and back through-holes offset in a direction perpendicular to the thickness direction. By offsetting the front and back through-holes in a direction perpendicular to the thickness direction, the cross-sectional length of the three-dimensional through-holes in the thickness direction increases compared to fabrics with the same fabric thickness in which the front and back through-holes are not offset. This increase in length component increases the cross-sectional area of ​​the through-holes, thereby enhancing the cooling effect. Additionally, suppressing transparency can broaden the range of uses for clothing.

[0023] The clothing fabric has a thickness of preferably 0.80 mm or more, more preferably 0.85 mm or more, even more preferably 0.90 mm or more, and particularly preferably 0.95 mm or more, from the viewpoint of increasing the cross-sectional surface area of ​​the through holes and absorbing and retaining sweat. Also, from the viewpoint of the cool feeling required when worn in a hot environment, the clothing fabric has a thickness of preferably 2.00 mm or less, more preferably 1.95 mm or less, and even more preferably 1.90 mm or less.

[0024] In this specification, a through-hole means a hole having a vertical length (the maximum value of a line segment connecting any two points on the periphery of the hole parallel to the vertical direction of the fabric) of 0.3 mm or more and a horizontal length (the maximum value of a line segment connecting any two points on the periphery of the hole parallel to the horizontal direction of the fabric) of 0.3 mm or more. The vertical and horizontal lengths of all of the surface through-hole, back surface through-hole, and fabric through-hole are 0.3 mm or more.

[0025] The ratio of the area where the air passing through the fabric through-holes comes into contact with the hydrophilic fiber yarns (II), converted to a unit area of ​​the clothing fabric (hereinafter also referred to as the ratio of hydrophilic regions where the air comes into contact per unit area), is 20% or more. The provision of fabric through-holes with a three-dimensional structure ensures a range through which the air can pass, and the air passing through the fabric through-holes comes into contact with the hydrophilic fiber yarns (II), thereby increasing the amount of contact between the air passing through the fabric and sweat moisture, thereby enhancing the cooling effect. In particular, when the ratio of hydrophilic regions where the air comes into contact per unit area is 20% or more, the surface area where the air passing through the fabric comes into contact with the sweat moisture absorbed by the fabric increases, thereby effectively moistening and cooling the air, improving the cooling effect. The ratio of hydrophilic regions where the air comes into contact per unit area is more preferably 25% or more, even more preferably 30% or more, even more preferably 35% or more, even more preferably 40% or more, and particularly preferably 45% or more. By maintaining the voids of the through-holes when wet, while increasing the ratio of the hydrophilic regions per unit area that come into contact with air as much as possible, the area where the air taken into the garment comes into contact with moisture can be increased, making it possible to enhance the cooling effect and achieve a cooling effect of 2°C or more. Furthermore, from the viewpoint of maintaining the voids of the through-holes when wet, it is preferable that the ratio of the hydrophilic regions per unit area that come into contact with air is 99% or less. The ratio of the hydrophilic regions per unit area that come into contact with air can be measured as described in the Examples.

[0026] The opening rate of the fabric for the garment is preferably 5% to 65%, more preferably 10% to 60%, and even more preferably 15% to 55%. In this specification, "opening rate of fabric" means the ratio of the area of ​​through holes to the area of ​​the fabric. The opening rate of fabric can be measured as described in the Examples.

[0027] In the clothing fabric, the fabric through-holes preferably maintain voids when the fabric is wetted with 450% or more (e.g., 470%) of water relative to 100% of the fabric weight, i.e., when the fabric has a water absorption rate of 450% or more (e.g., 470%), and the fabric is hung with the fabric through-holes oriented vertically. This allows breathability to be maintained in a humid state, especially when heavy sweating occurs. The fabric through-holes may be arranged in one or more directions, such as the vertical, horizontal, or diagonal direction of the fabric. Preferably, fiber threads (I) are arranged in a portion around the fabric through-holes, and hydrophilic fiber threads (II) are arranged in the other portion. This structure allows moisture to easily move through the fiber threads (I), and in a humid state, especially when heavy sweating occurs, the fabric through-holes retain the voids while retaining the large amount of sweat absorbed by the hydrophilic fiber threads (II). This facilitates contact between the air passing through the fabric through-holes and the sweat absorbed by the hydrophilic fiber threads (II), effectively cooling the air by moistening it. The planar shape of each of the rear surface through-holes, the front surface through-holes, and the fabric through-holes may be any shape such as a circle, an ellipse, a square, a diamond, a triangle, a polygon, or an irregular shape.

[0028] The clothing fabric has a water retention capacity of 450 g / m after being allowed to absorb water for 10 seconds and then hung vertically from the ground for 30 seconds. 2 It is preferable that the content is at least 500 g / m 2 More preferably, it is 550 g / m or more. 2 That's all. "The amount of water retention after the clothing fabric is allowed to absorb water for 10 seconds and then hung vertically from the ground for 30 seconds" corresponds to the saturated water retention capacity of the clothing fabric. By increasing the proportion of the area where the air passing through the fabric through-holes comes into contact with the hydrophilic fiber yarns (II), sweat moisture is easily retained within the through-holes at all times, and the cooling effect can be maintained. In addition, the sweat moisture retained within the through-holes evaporates when air is taken into the clothing from outside, so the amount of sweat moisture that evaporates is greater than in areas other than the through-holes, but the saturated water retention capacity is 450 g / m 2With this, even if the amount of sweat moisture held in the areas other than the through-holes is high and the amount of sweat moisture inside the through-holes decreases due to evaporation, the amount of sweat moisture outside the through-holes moves into the through-holes through the yarn at the same time as the decrease, making it easier to maintain the amount of moisture inside the through-holes and therefore easier to maintain the cooling effect. On the other hand, from the perspective of the burden on the wearer due to the increase in weight of the garment caused by water retention, the saturated water retention capacity of the clothing fabric is set to 800 g / m 2 It is preferable that the weight is not more than 750 g / m 2 The saturated water retention capacity of the clothing fabric can be adjusted based on the ratio of the fiber yarn (I) and the hydrophilic fiber yarn (II), the amount of gap between the fiber yarns, etc. For example, a higher ratio of the hydrophilic fiber yarn (II) increases the saturated water retention capacity of the clothing fabric. In this specification, the "saturated water retention capacity" can be measured as described in the Examples.

[0029] The clothing fabric preferably has a water absorption time measured in accordance with JIS L 1907 Method A (drop method) of 180 seconds or less, more preferably 60 seconds or less, even more preferably 40 seconds or less, even more preferably 20 seconds or less, even more preferably 10 seconds or less, and particularly preferably 5 seconds or less. This facilitates rapid absorption of sweat when sweating heavily in a hot environment or during exercise, and the improved sweat management also enhances the cooling effect using latent heat of vaporization.

[0030] The basis weight of the clothing fabric is not particularly limited, but is, for example, 180 g / m 2 It is preferable that the weight is 170 g / m or less, and more preferably 170 g / m 2 or less, and more preferably 160 g / m 2 If the basis weight is within the above range, a cool feeling can be felt even when playing sports in a hot environment. From the viewpoint of durability, the fabric for the clothing has a basis weight of 60 g / m or less. 2 It is preferable that the content is at least 70 g / m 2 More preferably, it is 80 g / m or more. 2 That's all.

[0031] The breathability of the clothing fabric is not particularly limited. For example, from the viewpoint of enhancing breathability, the breathability measured by JIS L 1096 A method (Fragile type method) is 200 cm 3 / (cm 2 s) or more, and more preferably 230 cm 3 / (cm 2 The standard and wet air permeabilities of the clothing fabric can be measured as described in the Examples.

[0032] The air resistance of the clothing fabric when wet is not particularly limited, but is preferably 0.3 kPa·s / m or less, and more preferably 0.2 kPa·s / m or less, from the viewpoint of allowing sweat moisture to easily pass from the inside of the clothing to the outside of the clothing. The air resistance of the clothing fabric when wet can be measured as described in the Examples.

[0033] The cooling temperature of the wetted clothing fabric is preferably 2.0°C or higher, more preferably 2.2°C or higher, even more preferably 2.4°C or higher, and particularly preferably 2.5°C or higher. The cooling temperature of the wetted clothing fabric is expressed as the difference (T0-T1) between the temperature T0 of the air before passing through the wetted clothing fabric and the temperature T1 of the air after passing through the wetted clothing fabric and at a position 5 cm or more (e.g., 25 cm) away from the clothing fabric. That is, the temperature T1 of the air after passing through the wetted clothing fabric and at a position 5 cm or more (e.g., 25 cm) away from the clothing fabric is preferably 2°C or more lower than the temperature T0 of the air before passing through the clothing fabric, more preferably 2.2°C or more lower, even more preferably 2.4°C or more lower, and particularly preferably 2.5°C or more lower. The cooling temperature of the wetted clothing fabric can be measured as described in the Examples.

[0034] The clothing of the present invention includes the clothing fabric. The clothing is not particularly limited and may be worn on the upper body, the lower body, or the entire body. Examples include shirts, T-shirts, inner shirts, training warmers, briefs, tights, etc. The clothing is particularly suitable for use as sports clothing worn during hot seasons when sweating is common. In the clothing of the present invention, the clothing fabric may be used all over or partially. For example, it may be used partially on areas such as the armpits and back where sweating is likely to occur.

[0035] Hereinafter, a clothing fabric according to one embodiment of the present invention will be described with reference to the drawings. Hereinafter, the same reference numerals in the drawings represent the same components. FIG. 1 is a schematic plan view of a clothing fabric according to one embodiment of the present invention, FIG. 2 is a schematic back view of the same, FIG. 3 is a schematic cross-sectional view in the I-I' direction of the same, and FIG. 4 is a schematic cross-sectional view in the II-II' direction of the same. Clothing fabric 1 of this embodiment includes a surface layer 2, a back layer 3, and an intermediate layer 4. The surface layer 2 has surface through-holes 6 penetrating in the thickness direction, and the back layer 3 has back through-holes 7 penetrating in the thickness direction. The intermediate layer 4 has connecting portions where connecting yarns 5 connecting the surface layer 2 and the back layer 3 are present and void portions where no connecting yarns are present, and fabric through-holes 8 have a three-dimensional structure formed by the surface through-holes 6, the back through-holes 7, and the void portions.

[0036] FIG. 5 is a schematic cross-sectional view of a three-dimensional fabric through hole. As shown in FIG. 5, fabric through hole 8 has a three-dimensional structure. When observed from directly above the front and back surfaces, the area visible as a through hole is the area sandwiched between dashed lines III and III'. However, air can pass through the three-dimensional fabric through hole sandwiched between dashed lines IV and IV', and the area through which air passes is significantly larger than the visible area. FIG. 6 is a schematic cross-sectional view of a two-dimensional fabric through hole. As shown in FIG. 6, in a fabric without an intermediate layer (space portion), through hole 16 penetrating in the thickness direction of front layer 12 and through hole 17 penetrating in the thickness direction of back layer 13 form two-dimensional through hole 18. The area visible as a through hole and the area through which air passes are both the area sandwiched between V and V', and the area visible as a through hole and the area through which air passes are the same. In this specification, "through holes with a three-dimensional structure" means through holes that penetrate in the thickness direction of a fabric having a three-layer structure consisting of a surface layer, a back layer, and an intermediate layer (space portion) connecting the surface layer and the back layer, and "through holes with a two-dimensional structure" means through holes that penetrate in the thickness direction of a fabric having a two-layer structure consisting of a surface layer and a back layer, without an intermediate layer (space portion).

[0037] Fig. 7 is a schematic cross-sectional view illustrating the proportion of the area where air passing through a fabric through hole comes into contact with the fiber yarns surrounding the fabric through hole in a cross section of a fabric through hole with a three-dimensional structure. Fig. 8 is a schematic cross-sectional view illustrating the proportion of the area where air passing through a fabric through hole comes into contact with the fiber yarns surrounding the fabric through hole in a cross section of a fabric through hole with a two-dimensional structure. In both the cross sections of a fabric through hole with a three-dimensional structure and a fabric through hole with a two-dimensional structure, the area where air 10 passing through the fabric through hole comes into contact with the fiber yarns 9 can be defined as approximately 50% of the surface area of ​​the fiber yarns 9. However, since the cross section of a fabric through hole with a three-dimensional structure has a larger range through which air passes than the cross section of a fabric through hole with a two-dimensional structure, the proportion of the area where air passing through the through hole comes into contact with the fiber yarns is larger in the fabric through hole with a three-dimensional structure. [Example]

[0038] The present invention will be explained in more detail below using examples, but it should be understood that the present invention is not limited to the following examples.

[0039] The evaluation and measurement methods used in the examples and comparative examples will be described below.

[0040] (Thickness) The thickness was measured using a test piece thickness measuring instrument FS-60N (manufactured by Kobunshi Keiki Co., Ltd.) under a load of 60 g.

[0041] (Opening ratio) In the complete structure, which is the smallest unit of the structure that makes up the fabric, the area of ​​the surface through holes or back surface through holes that form fabric through holes and the area of ​​the complete structure, which is the smallest unit of the structure that makes up the fabric, were measured using a microwatcher (model number VHX8000, manufactured by Keyence Corporation), and the opening rate was calculated using the following formula. When the area of ​​the surface through holes that form fabric through holes and the area of ​​the back surface through holes that form fabric through holes differ significantly depending on the fabric structure, the surface opening rate and the back surface opening rate were calculated separately and averaged. When there are surface through holes or back surface through holes but no fabric through holes are formed, the opening rate of the fabric is 0%. Opening rate (%) = total area of ​​surface through holes or back through holes that form fabric through holes in a complete structure / area of ​​complete structure × 100

[0042] (Ratio of hydrophilic area exposed to air per unit area) (1) Definition of the area where air passing through fabric holes comes into contact with hydrophilic fiber yarns Assuming that the fiber yarn is a cylinder, the proportion of the area where the air passing through the through hole comes into contact with the hydrophilic fiber yarn on the periphery of the through hole can be assumed to be 50% of the surface area of ​​the hydrophilic fiber yarn in the cross section of the fabric through hole, as shown in Figure 7 or Figure 8. Therefore, as shown in Figure 9, the area where the air comes into contact with the hydrophilic fiber yarn 11 is considered to be the lateral area S of the semicylinder. Furthermore, if the fabric through hole is cut in half in the warp direction of the fabric and the area S where the air comes into contact with the hydrophilic fiber yarn is measured from the cut surface direction using a microwatcher, the measurement can only be performed two-dimensionally, so the measurement value is equal to that measured from the top surface of the semicylinder, and the base area A of the semicylinder is calculated as the measurement value, but the base area A corresponds to the formula A = D (diameter) × h. Therefore, h = A ÷ D. From the above, the area S where the air passing through the through hole comes into contact with the hydrophilic fiber yarn can be calculated using the following formula 1. 27 shows how the knitted fabric of Example 1 is cut in half in the warp direction of the fabric to form through-holes, and the area of ​​contact between the air and the hydrophilic fiber yarn is measured and calculated as the base area A using a microwatcher from the cut surface direction. The observation area 40 can be enlarged using the microwatcher to measure the base area A.

number

number

[0043] (Saturated water retention amount) The fabric was cut into a 100 mm x 100 mm sample, and the weight of the sample was measured and recorded as Wa (g). The sample was then immersed in water in a tank for 10 seconds, and then hung vertically from the ground for 30 seconds, after which the weight was measured and recorded as Wb (g). The saturated water retention capacity was calculated using the following formula. Saturated water retention capacity (g / m 2 )=(Wb-Wa)×100

[0044] (Water absorption time) The water absorption time was measured according to JIS L 1907 Method A (drop method).

[0045] (Airflow resistance) The airflow resistance was measured using an airflow resistance tester KES-F8 (manufactured by Kato Tech Co., Ltd.) by detecting the pressure during air release and suction and calculating the airflow resistance R. Airflow: 4cc / cm 2 / sec. (constant ventilation rate method), ventilation hole area: 2πcm 2 The measurements were carried out under conditions of a temperature of 20°C and a relative humidity of 65%RH. The air resistance when wet was measured by wetting the fabric with water and with the direction of air release and intake parallel to the ground. The temperature and humidity were the same as above. The measurement method was as follows. (1) The fabric was placed perpendicular to the ground. (2) The fabric immersed in the water in the water tank was removed and placed in the testing machine. (3) Measurements were started in accordance with the KES test manual.

[0046] (breathability) Standard air permeability (cm2) according to JIS L 1096 A method (Fragile method) 3 / cm 2 / s) was measured at a pressure of 125 Pa.

[0047] (cooling effect) (1) The fabric was moistened in the same manner as in measuring the saturated water retention capacity. The saturated water retention capacity and water absorption rate of the moistened fabric were as shown in Table 4 below. The water absorption rate was calculated as follows. Water absorption rate (%) = amount of water absorbed by fabric (g) / weight of fabric (g) x 100 (2) In a room stabilized at 20° C. and 40% RH, the wet fabric 30 was placed in the holder 21 of the cooling effect measuring device 20 as shown in FIG. The cooling effect measuring device 20 is fixed with double-sided tape to an acrylic resin plate 21 that holds the measurement sample, and is equipped with a blower 22 that takes in air, a cylindrical front flow path pipe 23 (inner diameter 60.0 cm, length 10 cm) through which air flows before passing through the measurement sample, a cylindrical rear flow path pipe 24 (inner diameter 4.0 cm, length 25 cm) through which air flows after passing through the measurement sample, and a temperature sensor 25 installed at the outlet of the rear flow path pipe 24. (3) The blower 22 was operated to blow air in the direction indicated by the arrow at a wind speed of 5 m / s, and the temperature (T1) of the air after passing through the wet fabric 30 was measured by the temperature sensor 25. The temperature T0 of the air before passing through the wet fabric 30 was 20°C, the same as the room temperature. (4) The cooling temperature of the clothing fabric when wet was calculated using the following formula. Cooling temperature (℃)=T0-T1

[0048] (Examples 1 to 2, Comparative Examples 1 to 5) Knitted fabrics were produced using the fiber yarns (I) and hydrophilic fiber yarns (II) shown in Tables 1 and 2 below under the conditions shown in Table 3 below. Figures 11 to 24 show plan photographs (20x magnification) and back photographs (20x magnification) of fabric samples of Examples 1 and 2 and Comparative Examples 1 to 5, respectively. Figure 25 is a cross-sectional photograph (20x magnification) in the warp direction of the knitted fabric of Example 1, and Figure 26 is a cross-sectional photograph (20x magnification) in the warp direction of the knitted fabric of Comparative Example 2. The polyester hydrophilic yarn is a polyester fiber yarn that has been hydrophilically treated with a hydrophilic polyester resin finishing agent, and the polyester water-repellent yarn is a polyester fiber yarn that has been water-repellent treated with a fluorine-based water-repellent agent.

[0049] The thickness, opening ratio, ratio of hydrophilic regions exposed to air per unit area HaR (%), saturated water retention capacity, water absorption time, air resistance, breathability and cooling effect of the knitted fabrics obtained in Examples 1 and 2 and Comparative Examples 1 to 5 were measured and evaluated as described above, and the results are shown in Tables 3 and 4 below.

[0050] [Table 1]

[0051] [Table 2]

[0052] [Table 3]

[0053] [Table 4]

[0054] Figures 11 and 12 are plan and back photographs, respectively, of the double Russell fabric of Example 1. Figure 25 is a cross-sectional photograph of the double Russell fabric of Example 1 cut along the longitudinal direction. As can be seen from Figures 11, 12, 25, and Table 3, the double Russell fabric of Example 1 includes a surface layer, a back layer, and an intermediate layer connecting the surface layer and the back layer, and the intermediate layer 4 has a space. Figures 13 and 14 are plan and back photographs, respectively, of the double Russell fabric of Example 2. As can be seen from Figures 13 and 14, the double Russell fabric of Example 2 includes a surface layer, a back layer, and an intermediate layer connecting the surface layer and the back layer, and the intermediate layer 4 has a space.

[0055] As can be seen from Table 3 above, in the case of the knitted fabric of the example, in a wet state with a water absorption rate of 450% or more, which corresponds to a state of heavy sweating, the air passing through the fabric could be wet-cooled by 2°C or more.

[0056] On the other hand, the knitted fabric of Comparative Example 1, which did not contain water-repellent yarn and did not have fabric-through holes or an intermediate layer, was unable to wet-cool the air. Furthermore, the knitted fabrics of Comparative Examples 2 and 3, which had fabric-through holes but no intermediate layer with spaces and had a low HaR, were able to wet-cool the air passing through the fabric, but the cooling effect was insufficient. Figure 26 is a cross-sectional photograph of the knitted fabric of Comparative Example 2 cut along the warp direction, and it can be seen that there are no spaces between the front layer and the back layer. Furthermore, the knitted fabrics of Comparative Examples 4 and 5, which had an intermediate layer but no fabric-through holes and did not contain water-repellent yarn, were unable to wet-cool the air. [Explanation of symbols]

[0057] 1 Clothing fabric 2, 12 Surface layer 3, 13 Back layer 4. Middle class 5 Connecting thread 6, 16 surface through hole 7, 17 Back through holes 8 Fabric through holes 9 Fiber Yarn 10. Air 11 Hydrophilic fiber yarn 20 Cooling effect measuring device 21 Holder 22 Blower 23 Front channel pipe 24 Afterflow pipe 25 Temperature Sensor 30 Wet Dough 40 Microwatcher observation area

Claims

1. A clothing fabric including a surface layer, a back layer, and an intermediate layer, the intermediate layer is composed of a connecting portion where a connecting thread that connects the front layer and the back layer is present, and a space portion where the connecting thread is not present, The surface layer has a surface through-hole penetrating in a thickness direction, and the back surface layer has a back surface through-hole penetrating in a thickness direction, The front surface through hole, the back surface through hole, and the space portion form a fabric through hole having a three-dimensional structure penetrating in a thickness direction of the fabric, One or more fiber yarns (I) selected from the group consisting of hydrophobic fiber yarns and water-repellent fiber yarns are arranged in a part of the connecting yarns of the surface layer, the back layer, and the intermediate layer, and hydrophilic fiber yarns (II) are arranged in the other parts, A clothing fabric in which the ratio of the area of ​​air passing through the fabric through holes in contact with the hydrophilic fiber yarn (II) is 20% or more, calculated per unit area of ​​the fabric.

2. The clothing fabric according to claim 1 , wherein the positions of the front through-holes and the positions of the back through-holes are offset in a direction perpendicular to the thickness direction.

3. After absorbing water for 10 seconds and hanging vertically from the ground for 30 seconds, the water retention was 450g / m 2 The clothing fabric according to claim 1 .

4. The clothing fabric according to claim 1, wherein the weight ratio of the fiber yarn (I):hydrophilic fiber yarn (II) is I:II=20:80 to 1:99, when the total of the fiber yarn (I) and the hydrophilic fiber yarn (II) is 100 parts by weight.

5. 2. The clothing fabric according to claim 1, wherein the clothing fabric has a water absorption time of 180 seconds or less as measured in accordance with JIS L 1907 A method (drop method).

6. The clothing fabric according to claim 1, having a thickness of 0.8 to 2.0 mm.

7. The clothing fabric according to claim 1, wherein the fabric through-holes maintain gaps when the clothing fabric is hung vertically from the ground in a state where the clothing fabric is moistened with 450% or more water relative to 100% of the fabric weight.

8. 2. The clothing fabric according to claim 1, which is a knitted fabric.

9. The clothing fabric according to claim 8, wherein the knit is a double raschel.

10. A garment comprising the garment fabric according to any one of claims 1 to 9.

11. The garment according to claim 10, wherein the garment is a sports garment.

Images