EP3520639B1 - Article of clothing comprising a clothing fabric - Google Patents
Article of clothing comprising a clothing fabric Download PDFInfo
- Publication number
- EP3520639B1 EP3520639B1 EP18199391.6A EP18199391A EP3520639B1 EP 3520639 B1 EP3520639 B1 EP 3520639B1 EP 18199391 A EP18199391 A EP 18199391A EP 3520639 B1 EP3520639 B1 EP 3520639B1
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- EP
- European Patent Office
- Prior art keywords
- fabric
- article
- holes
- yarn
- repellent
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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- 239000004744 fabric Substances 0.000 title claims description 136
- 239000000835 fiber Substances 0.000 claims description 60
- 239000005871 repellent Substances 0.000 claims description 54
- 230000002209 hydrophobic effect Effects 0.000 claims description 49
- 210000004243 sweat Anatomy 0.000 description 38
- 208000008454 Hyperhidrosis Diseases 0.000 description 24
- 230000000052 comparative effect Effects 0.000 description 23
- 230000035900 sweating Effects 0.000 description 23
- 239000007788 liquid Substances 0.000 description 22
- 229920000139 polyethylene terephthalate Polymers 0.000 description 19
- 239000005020 polyethylene terephthalate Substances 0.000 description 19
- 238000010586 diagram Methods 0.000 description 16
- 238000011161 development Methods 0.000 description 15
- 230000035699 permeability Effects 0.000 description 12
- 238000009423 ventilation Methods 0.000 description 12
- 238000005259 measurement Methods 0.000 description 11
- 238000000034 method Methods 0.000 description 9
- 238000012360 testing method Methods 0.000 description 9
- 238000012546 transfer Methods 0.000 description 9
- 239000004743 Polypropylene Substances 0.000 description 6
- 238000009940 knitting Methods 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 238000011156 evaluation Methods 0.000 description 4
- 229920000728 polyester Polymers 0.000 description 4
- -1 polypropylene Polymers 0.000 description 4
- 239000004814 polyurethane Substances 0.000 description 4
- 239000011347 resin Substances 0.000 description 4
- 229920005989 resin Polymers 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 230000036757 core body temperature Effects 0.000 description 3
- 230000017525 heat dissipation Effects 0.000 description 3
- 229920000058 polyacrylate Polymers 0.000 description 3
- 239000011800 void material Substances 0.000 description 3
- 238000002788 crimping Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- 230000007613 environmental effect Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 230000002401 inhibitory effect Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920001155 polypropylene Polymers 0.000 description 2
- 230000000717 retained effect Effects 0.000 description 2
- 229920003043 Cellulose fiber Polymers 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 229920000297 Rayon Polymers 0.000 description 1
- 241000168254 Siro Species 0.000 description 1
- 238000010521 absorption reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 239000000470 constituent Substances 0.000 description 1
- 238000007796 conventional method Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 229920001971 elastomer Polymers 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 238000005342 ion exchange Methods 0.000 description 1
- 230000001788 irregular Effects 0.000 description 1
- 238000012544 monitoring process Methods 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 229920006306 polyurethane fiber Polymers 0.000 description 1
- 239000002964 rayon Substances 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 230000035807 sensation Effects 0.000 description 1
- 230000001953 sensory effect Effects 0.000 description 1
- 208000013460 sweaty Diseases 0.000 description 1
- 230000002195 synergetic effect Effects 0.000 description 1
- 238000012549 training Methods 0.000 description 1
Images
Classifications
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/04—Materials specially adapted for outerwear characterised by special function or use
- A41D31/12—Hygroscopic; Water retaining
- A41D31/125—Moisture handling or wicking function through layered materials
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D31/00—Materials specially adapted for outerwear
- A41D31/04—Materials specially adapted for outerwear characterised by special function or use
- A41D31/14—Air permeable, i.e. capable of being penetrated by gases
-
- A—HUMAN NECESSITIES
- A41—WEARING APPAREL
- A41D—OUTERWEAR; PROTECTIVE GARMENTS; ACCESSORIES
- A41D2500/00—Materials for garments
- A41D2500/10—Knitted
Definitions
- the present invention relates to a clothing fabric and clothes using the same. More specifically, the invention relates to a clothing fabric and clothes using the same that can be worn with comfort even when sweating.
- Document US 2014/0109282 A1 discloses a fabric having a defined pattern of hydrophobic and hydrophilic regions that extend entirely through the thickness of the fabric so that the defined patterns is identical on the inner and outer surfaces of the fabric.
- the defined pattern is configured so that the hydrophilic regions are all in communication or interconnected so that moisture can wick not only from the inner to the outer surface of the fabric but also throughout the surface of the fabric and in several directions of the fabric so that the surface area of the wetted hydrophilic regions increases.
- Document WO 2007/091023 A1 discloses a fabric comprising a plurality of first areas and a plurality of second areas, wherein the first areas have a surface of a first yarn and the second areas have a surface of a second, different yarn.
- the present invention provides a clothing fabric and clothes using the same that can, while being water-absorbing, suppress formation of a film of a liquid even when the fabric is wet, ensure air permeability of the fabric, and always allow sweat on the skin to be evaporated on the body surface, thereby increasing the effective sweat amount, preventing exercise performance from being lowered, and allowing a person to wear the clothes with comfort even when sweating.
- the present invention is directed to an article of clothing according to claim 1.
- the present invention is directed to clothes including a clothing fabric, wherein through holes that pass through a portion of the fabric in a thickness direction are arranged along a direction of a wearer' height.
- a water-repellent or hydrophobic region is arranged at least at part of the fabric in contact with the through holes, and a hydrophilic region is arranged at the other portions. Accordingly, moisture is likely to be transferred from the vicinity of the through holes to the hydrophilic region, and a film of a liquid is not formed in the vicinity of the through holes.
- the present invention is directed to a clothing fabric including: through holes that pass through the fabric in the thickness direction, wherein the through holes are arranged along one direction of the fabric.
- the term "one direction" refers to a warp direction of the fabric and the through holes are arranged along a warp direction. The reason for this is that, when the fabric is formed into clothes, the through holes are preferably arranged along a warp direction.
- the performance of the present invention can be ensured by arranging the through holes so as to appear at constant intervals in a warp direction.
- the fabric is a knitted fabric.
- a water-repellent or hydrophobic region is arranged at least at part of the fabric in contact with the through holes, and a hydrophilic region is arranged at the other portions.
- the fabric in contact with the through holes refers to 10% or more, preferably 20% or more, and more preferably 30% or more.
- moisture is likely to be transferred from the vicinity of the through holes to the hydrophilic region, and a film of a liquid is not formed in the vicinity of the through holes.
- the through holes may have any planar shape, such as a circle, an oval, a quadrangle, a rhombus, a triangle, a polygon, or an irregular shape.
- a water-repellent or hydrophobic region is arranged at part of the through holes, and thus the surface tension increases due to capillary action of the through holes. Accordingly, moisture on the fabric surface is likely to be transferred, and a film of a liquid is not formed at the through holes. Furthermore, even when moisture is filled into the through hole, its surface tension differs from portion to portion because a hydrophilic region is arranged at a portion thereof and a water-repellent or hydrophobic region is arranged at another portion, and forces that are applied to the liquid at the through hole are not balanced, and thus a film of a liquid is not formed at the through hole.
- a water-repellent or hydrophobic region is preferably arranged around the through holes, and at least in contact with part of the through holes.
- a hydrophilic region is arranged at part of the fabric so as to absorb sweat excreted from the body surface.
- the hydrophilic region is preferably arranged in an area of at least 10% or more.
- the water-repellent or hydrophobic region can be formed through knitting with a water-repellent or hydrophobic yarn, or by applying a water-repellent or hydrophobic resin to the fabric.
- the hydrophilic region can be formed through knitting with a hydrophilic yarn, or by applying a hydrophilic resin to the fabric.
- a water-repellent or hydrophobic yarn is arranged at part of the through holes, and thus the surface tension increases due to capillary action of the through holes. Accordingly, moisture on the fabric surface is likely to be transferred, and a film of a liquid is not formed at the through holes.
- a water-repellent or hydrophobic yarn is preferably arranged around the through holes, and at least in contact with part of the through holes.
- a hydrophilic yarn is preferably arranged at part of the fabric so as to absorb sweat excreted from the body surface. The hydrophilic yarn is preferably arranged in an amount of at least 10% or more.
- Lines for facilitating flow of a liquid in the vertical direction when the fabric is positioned vertical to the ground are provided.
- the lines in the vertical direction are formed by continuously arranging the yarn density pattern, or water-repellent or hydrophobic region.
- the yarn density pattern is formed through methods such as the stitch density of the fabric, the number of twists of the yarn, the percentage of crimp, knitting techniques, embossing, or the like.
- examples of at least one fiber yarn (I) selected from water-repellent fiber yarns and hydrophobic fiber yarns include: hydrophobic fiber yarns such as polypropylene fiber yarns, polyethylene fiber yarns, and polyester (PET, etc.) yarns; yarns obtained by subjecting organic fiber yarns (e.g., the above-described hydrophobic fiber yarn) to water-repellent treatment; and yarn portions obtained by subjecting yarns in a fabric state to water-repellent treatment through printing.
- hydrophilic fiber yarn (II) examples include: cellulose fiber spun yarns such as cotton spun yarns and rayons; highly crosslinked polyacrylate-based fiber spun yarns; mixed spun yarns of these fibers and polyester (PET, etc.) fibers; composite spun yarns (including siro spun yarns) of these fibers and polyester (PET, etc.) multifilament yarns; nylon yarns; polyester (PET, etc.) fiber yarns and the like subjected to hydrophilic treatment; and yarn portions obtained by subjecting yarns in a fabric state to hydrophilic treatment through printing.
- the at least one fiber yarn (I) selected from water-repellent fiber yarns and hydrophobic fiber yarns is used as a fiber constituting the through holes, and the hydrophilic fiber yarn (II) is used for the base portions.
- the portion using the hydrophilic fiber yarn preferably absorbs a liquid within 180 seconds as defined in the Dropping Test (JIS L 1907 A). It is more preferable to absorb a liquid within 60 seconds.
- the fabric of the present invention is preferably such that the portion using the water-repellent or hydrophobic fiber yarn has higher water-retaining properties than the portion using the hydrophilic fiber yarn.
- the area of the water-repellent or hydrophobic region (A), in continuous arrangement of a water-repellent or hydrophobic yarn such as when a continuous yarn that is a water-repellent or hydrophobic yarn is knitted in warp knitting refers to an area obtained by multiplying the thickness of the yarn in a fabric state without load as measured using a digital microscope (product number VH-Z25, manufactured by Keyence Corporation) by the number of yarns constituting the fabric per unit area.
- the area refers to an area of the resin applied per unit area.
- the region other than the water-repellent or hydrophobic region (A) is taken as the hydrophilic region (B), based on which the area ratio between the water-repellent or hydrophobic region (A) and the hydrophilic region (B) is calculated.
- the through holes When the clothing fabric of the present invention is suspended such that the through holes are arranged along the vertical direction in a state where the fabric whose weight is taken as 100% is wet with 300% of moisture, the through holes have voids therein.
- the clothing fabric of the present invention is preferably such that grooves (lines) are formed in the same direction as the one direction along which the through holes are arranged. Accordingly, when the sweat amount increases, a liquid is likely to flow along the grooves (lines).
- the direction of the grooves (lines) preferably matches the direction of the wearer' height.
- the width of each of the grooves is preferably 0.1 to 30 mm, and more preferably 0.3 to 20 mm.
- the groove portions (lines) are preferably formed at fabric portions using at least one fiber yarn (I) selected from water-repellent fiber yarns and hydrophobic fiber yarns. The reason for this is for facilitating flowing of a liquid.
- the groove portions may be formed at knitted fabric portions using the water-repellent or hydrophobic fiber yarn by forming the knitted fabric portions using the hydrophilic fiber yarn relatively thick and the knitted fabric portions using the water-repellent or hydrophobic fiber yarn relatively thin.
- each of the through holes is such that the average length in both the warp and weft directions is preferably 0.3 to 25 mm, and more preferably 0.3 to 20 mm. Accordingly, it is possible to provide a clothing fabric and clothes using the same that can further increase the effective sweat amount, prevent exercise performance from being lowered, and allow a person to wear the clothes with comfort even when sweating.
- the opening percentage of the clothing fabric is preferably 1 to 50%, and more preferably 2 to 40%. Accordingly, it is possible to provide a clothing fabric and clothes using the same that can further increase the effective sweat amount, prevent exercise performance from being lowered, and allow a person to wear the clothes with comfort even when sweating.
- the opening percentage refers to a proportion of the through holes occupying the fabric.
- the fiber yarn used in the clothing fabric of the present invention may be any yarn such as a spun yarn, a multifilament yarn, a crimping yarn obtained by treating a multifilament yarn, or the like.
- a crimping yarn yarns with different percentages of crimp are preferably arranged on the upper and lower sides. A high percentage of crimp increases the amount of water that can be retained, and a low percentage of crimp decreases the amount of water that can be retained. If these yarns are arranged on the upper and lower sides, liquid droplets become large, and transfer of the liquid droplets is repeatedly accelerated, and thus voids are ensured.
- yarns of two or more types with numbers of twists that are different from each other by 100 times/m or more are preferably used.
- the fabric of the present invention is a knitted fabric.
- the knitted fabric include a circular knit, a weft knit, a warp knit (including a tricot knit and a raschel knit), a pile knit, and the like, and basically include a plain knit, a jersey knit, a rib knit, a smooth knit (interlock knit), a rubber knit, a pearl knit, a denbigh structure, a cord structure, an atlas structure, a chain structure, and an inlay structure, wherein through holes are formed along one of the warp, weft, and diagonal directions.
- woven stitches or knitted stitches stretch in planar directions when the fabric is wet, and the air permeability increases.
- a knitted fabric is suited to be used in a portion of clothes in which the amount of sweat is large.
- a knitted fabric knitted fabrics such as a warp knit (including a tricot knit and a raschel knit), a weft knit, a circular knit, and the like are preferable.
- the basis weight of the fabric is preferably 40 g/m 2 or more and less than 300 g/m 2 . Since the fabric is used in a portion of clothes in which the amount of sweat is large, the fabric is preferably thin.
- the fabric of the present invention may be a one-way or two-way stretch fabric, and may include an elastic yarn made of polyurethane or the like.
- the clothes of the present invention contain the above-described fabric, wherein through holes that pass through a portion of the fabric in the thickness direction are arranged along the wearer' height or diagonal direction. Accordingly, moisture of sweat is likely to flow in the warp direction, and the air permeability of the through holes is ensured.
- the clothes are preferably used as sportswear.
- the clothes are preferably used particularly as sportswear that is used in a hot season when the amount of sweat is large.
- the fabric is arranged at least corresponding to a portion of a human body where the amount of sweat is large, and is formed into clothes.
- the fabric may be used in the whole or part (corresponding to the underarms or the back, etc.) of a sport shirt, a T-shirt, an inner shirt, a training warmer, briefs, an ordinary shirt, or the like.
- FIG. 1A is a schematic explanatory diagram showing transfer of sweat in a normal state of conventional clothes. Sweat 13a and 13b excreted from skin 11 is diffused toward the outside air via void portions of clothes 12a. 14 denotes an air flow.
- FIG. 1B is a schematic explanatory diagram showing transfer of sweat in a heavily sweating state of the conventional clothes. In a heavily sweating state, the clothes are wetter, a film of a liquid is formed, and the void portions of clothes 12b disappear or decrease. Accordingly, the sweat 13 and the air 14 remain on the surface of the skin 11, ineffective sweating increases, exercise performance is lowered due to an increase in the core body temperature, and the clothes become more uncomfortable.
- FIG. 1C is a schematic explanatory diagram showing transfer of sweat in a heavily sweating state of clothes according to an embodiment of the present invention. Even when the clothes are wetter in a heavily sweating state, the voids of the through holes are maintained, and thus formation of a film of a liquid is suppressed. Accordingly, the air permeability of a fabric 12C is ensured, and sweat 13a and 13b excreted from the skin 11 is diffused toward the outside air via void portions of clothes 12c. Furthermore, since sweat on the skin is always allowed to be evaporated on the body surface, the effective sweat amount increases, the exercise performance is prevented from being lowered, and the clothes are worn with comfort even when sweating.
- FIG. 2 is a photo showing a spread state of a clothing fabric according to the embodiment of the present invention (magnified by 2 times).
- FIG. 3A is a plan diagram illustrating FIG. 2
- FIG. 3B is a schematic cross-sectional view thereof.
- a fabric 1 has through holes 2 that pass through the fabric in the thickness direction, and the through holes 2 are arranged along the warp direction of the fabric 1.
- a water-repellent or hydrophobic fiber yarn 3 is arranged at least at part of the fabric in contact with the through holes 2, and a hydrophilic fiber yarn 4 is arranged at the other portions.
- the knitted fabric portions using the hydrophilic fiber yarn 4 are thick, and the knitted fabric portions using the water-repellent or hydrophobic fiber yarn 3 are thin, and thus groove portions (lines) 5 are formed in the warp direction.
- the portions in which the water-repellent or hydrophobic fiber yarn 3 is arranged form water-repellent or hydrophobic regions, and the portions in which the hydrophilic fiber yarn 4 is arranged form hydrophilic regions.
- FIG. 4A is a photo showing a spread state of a clothing fabric according to another embodiment (magnified by 2 times), and FIG. 4B is a photo showing a back face thereof (magnified by 2 times).
- FIG. 5A is a diagram illustrating FIG. 4A
- FIG. 5B is a diagram illustrating FIG. 4B .
- a fabric 6 has through holes 2 that pass through the fabric in the thickness direction, and the through holes 2 are arranged along the warp direction of the fabric 6.
- a water-repellent or hydrophobic fiber yarn 3 is arranged at least at part of the fabric in contact with the through holes 2, and a hydrophilic fiber yarn 4 is arranged at the other portions.
- FIG. 4A is a photo showing a spread state of a clothing fabric according to another embodiment (magnified by 2 times)
- FIG. 4B is a photo showing a back face thereof (magnified by 2 times).
- FIG. 5A is a diagram illustrating FIG. 4A
- FIG. 5B is a diagram
- FIG. 6 is a photo showing a spread state of a clothing fabric according to another embodiment (magnified by 2 times).
- FIG. 7 is a diagram illustrating FIG. 6 .
- a fabric 7 has through holes 2 that pass through the fabric in the thickness direction, and the through holes 2 are arranged along the warp direction of the fabric 7.
- a water-repellent or hydrophobic fiber yarn 3 is arranged at least at part of the fabric in contact with the through holes 2, and a hydrophilic fiber yarn 4 is arranged at the other portions.
- the knitted fabric portions using the hydrophilic fiber yarn 4 are thick, and the knitted fabric portions using the water-repellent or hydrophobic fiber yarn 3 are thin, and thus the groove portions (lines) 5 are formed in the warp direction.
- Fabrics with compositions as shown in Table 1 were produced.
- a water-repellent or hydrophobic yarn I was used to form fabric portions including through holes, and a hydrophilic yarn II was used to form the other portions.
- Example 1 (development article A), Example 2 (development article B), Comparative Example 1 (comparative article a), Comparative Example 3 (comparative article c), and Comparative Example 4 (comparative article d) were for shirts, and Example 3 (development article C), Example 5 (development article E), and Comparative Example 2 (comparative article b) were for inner shirts.
- PET denotes a polyethylene terephthalate fiber yarn
- PP denotes a polypropylene fiber yarn
- PU denotes a polyurethane fiber yarn.
- Example 1 Example 2, Example 3, Example 5, and Comparative Example 4
- a water-repellent yarn obtained by subjecting the surface of a PET fiber yarn to water-repellent treatment was used.
- Example 4 a hydrophobic PP fiber yarn, and a mixed spun yarn of PET fibers and highly crosslinked polyacrylate-based fibers as a hydrophilic yarn were used.
- Example 1 II area ratio Basis weight (g/m 2 ) Thickness (mm) (I: water-repellent or hydrophobic yarn) (II: hydrophilic yarn)
- Example 1 (dev.article A) Circular (double) PET 100% I: 66T/48f (water-repellent yarn) I: 10% 136 0.80 II: 44T/36f, SD83d/36f (hydrophilic yarn) II: 90%
- Example 2 (dev.article B) Warp (tricot) PET 100% I: 84T/72f (water-repellent yarn) I: 46% II: 54% 131 0.65 II: 84T/36f (hydrophilic yarn)
- Example 3 (dev.article C) Warp (tricot) PET 95% PU 5% I: 33T/36f (PET water-repellent yarn) I: 2% 183 0.99 II: 110T/144f, 44T/84f (hydrophilic yarn) II: 98%
- Example 4 (dev.article D) Circular (sing of:
- Example 1 (com.article a) Circular (double) PET 100% II: 84T/72F, 84T/48F (only hydrophilic yarn) II: 100% 125 0.74 Com.
- Example 2 (com.article b) Warp (tricot) PET 84% PU 16% II: 56T/48F, 33T/36F, 22T (only hydrophilic yarn) II: 100% 184 0.57 Com.
- Example 3 (com.article c) Circular (double) PET 100% II: 84T/72F (only hydrophilic yarn) II: 100% 129 0.75 Com.
- Example 4 (com.article d) Circular (double) PET 100% I: 84T/72f (only water-repellent yarn) I: 100% 127 0.74
- the opening percentages of the articles according to Examples 1 to 5 and Comparative Examples 1 and 2 were measured. The opening percentages were measured as follows.
- Table 2 shows the opening percentages of the fabrics.
- the ventilation resistances in a dry state and a wet state were measured.
- the measurement was performed using an Air Permeability Tester KES-F8 (manufactured by Kato Tech Co., Ltd.).
- the measurement was performed by releasing and sucking air into and from the atmosphere, detecting the pressures during the release and suction, and calculating a ventilation resistance R.
- the ventilation resistance in a dry state was measured at a temperature of 20°C and a relative humidity of 65%R.H. in a state where each fabric was dried.
- the ventilation resistance in a wet was measured while air was released and sucked parallel to the ground in a state where each fabric whose weight was taken as 100% was wet with 300% of moisture.
- the temperature and the humidity were as described above.
- the measuring method was as follows.
- Table 3 shows the ventilation resistance values of the fabrics. Table 3 Example 1 (dev.article A) Example 2 (dev.article B) Example 3 (dev.article C) Example 4 (dev.article D) Example 5 (dev.article E) Com.Example 1 (com.article a) Com.Example 2 (com.article b) Com.Example 3 (com.article c) Com.Example 4 (com.article d) Dry ventilation resistance (kPa ⁇ s/m 2 ) 0.017 0.026 0.001 0.0008 0.021 0.035 0.092 0.019 0.020 Wet ventilation resistance (kPa ⁇ s/m 2 ) 0.073 0.03 0.002 0.0014 0.072 15.5 21.34 0.17 0.19
- the articles according to the examples had lower ventilation resistance values in both the dry state and the wet state than those according to the comparative examples, and had significantly low ventilation resistance values especially in the wet state. If the ventilation resistance value in a wet state is 0.1 kPa ⁇ s/m 2 or less, the wearer feels moisture escaping from the inside of the clothes to the outside of the clothes.
- the heat dissipations from the clothes in a sweating state were measured as measurement of the amounts of heat transferred into the outside air in a wet state.
- the conditions were set such that constant temperature and humidity vessel: 80°C, relative humidity: 95%R.H., and apparatus used: heat flow sensor Z (product number: 2015TC, manufactured by Hioki E.E. Corporation).
- the measuring apparatus was as shown in FIGS. 9A to 9C , and the measuring method was as follows.
- Table 4 (shirt fabrics) and Table 5 (inner shirt fabrics) show the heat flow values of the fabrics.
- Table 4 Example 1 (dev.article A) Example 2 (dev.article B) Example 4 (dev.article D) Example 5 (dev.article E) Com.
- Example 1 Com.article a) Com.
- Example 3 Com.article c) Com.
- Example 4 Com.article d) Heat flow (Wm 2 ) 395.04 426.67 481.5 393.98 297.39 317.3 308.1
- Example 3 (dev.article C) Com.
- Example 2 Com.article b) Heat flow (Wm 2 ) 438.21 300.13
- Table 6 shows the results. Table 6 Addition of transfer averages in periods Comparative article a Development article A Comparative article a Development article B Comparative article b Development article C Integral value (w/m 2 ) -1302.87 2648.56 -4908 6197.96 -801.78 4135.99
- each fabric was sewn into a shirt, and the wear test was performed.
- the wear test was performed by causing a subject who was wearing the development articles and the comparative articles to perform exercise in the Kansai district in August.
- the comfort in a heavily sweating state was evaluated by a sensory evaluation (SD method, bipolar scale, five grades).
- FIGS. 11 and 12 are graphs showing wear test results of shirts according to the examples and comparative examples. It is seen from FIGS. 11 and 12 that the development articles outperformed the comparative articles in terms of the air permeability when the wear was wet with sweat, and the wearer of the development articles actually felt the concept of the articles according to the present invention.
- the fabric of the present invention may be used, for example, in the whole or part (corresponding to the underarms or the back, etc.) of a sport shirt, a T-shirt, an inner shirt, briefs, tights, an ordinary shirt, or the like.
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Description
- The present invention relates to a clothing fabric and clothes using the same. More specifically, the invention relates to a clothing fabric and clothes using the same that can be worn with comfort even when sweating.
- It is comfortable to wear clothes with countermeasures against sweating while participating in sweaty sports. In conventional clothes, a film of a liquid (sweat) is formed on a fabric surface in a wet state such as when a wearer is sweating, thereby lowering the air permeability, and inhibiting evaporation of sweat on the skin. This state leads to problems in which ineffective sweating increases, exercise performance is lowered due to an increase in the core body temperature, and the clothes become more uncomfortable. Conventional techniques are proposed such as those in
Patent Documents Patent Documents -
- Patent Document 1:
JP 2001-200452A - Patent Document 2:
JP 2003-096648A - Patent Document 3:
JP 2006-169648A - Patent Document 4:
JP 2006-249610A - Document
US 2014/0109282 A1 discloses a fabric having a defined pattern of hydrophobic and hydrophilic regions that extend entirely through the thickness of the fabric so that the defined patterns is identical on the inner and outer surfaces of the fabric. The defined pattern is configured so that the hydrophilic regions are all in communication or interconnected so that moisture can wick not only from the inner to the outer surface of the fabric but also throughout the surface of the fabric and in several directions of the fabric so that the surface area of the wetted hydrophilic regions increases. - Document
WO 2007/091023 A1 discloses a fabric comprising a plurality of first areas and a plurality of second areas, wherein the first areas have a surface of a first yarn and the second areas have a surface of a second, different yarn. - In conventional clothes, when the amount of sweat is large, a film of a liquid (sweat) is formed on a fabric surface, thereby lowering the air permeability, and inhibiting evaporation of sweat on the skin. This state leads to problems in which ineffective sweating increases, exercise performance is lowered due to an increase in the core body temperature, and the clothes become more uncomfortable.
- In order to address these conventional problems, the present invention provides a clothing fabric and clothes using the same that can, while being water-absorbing, suppress formation of a film of a liquid even when the fabric is wet, ensure air permeability of the fabric, and always allow sweat on the skin to be evaporated on the body surface, thereby increasing the effective sweat amount, preventing exercise performance from being lowered, and allowing a person to wear the clothes with comfort even when sweating.
- The present invention is directed to an article of clothing according to
claim 1. - In particular, the present invention is directed to clothes including a clothing fabric, wherein through holes that pass through a portion of the fabric in a thickness direction are arranged along a direction of a wearer' height.
- According to the clothing fabric and the clothes using the same of the present invention, a water-repellent or hydrophobic region is arranged at least at part of the fabric in contact with the through holes, and a hydrophilic region is arranged at the other portions. Accordingly, moisture is likely to be transferred from the vicinity of the through holes to the hydrophilic region, and a film of a liquid is not formed in the vicinity of the through holes. That is to say, due to the synergistic effect of (1) a water-repellent or hydrophobic region being arranged at least at part of the fabric in contact with the through holes and (2) a hydrophilic region being arranged at the other portions, it is possible to provide a clothing fabric and clothes using the same that can suppress formation of a film of a liquid even when the fabric is wet, ensure air permeability of the fabric, and always allow sweat on the skin to be evaporated on the body surface, thereby increasing the effective sweat amount, preventing exercise performance from being lowered, and allowing a person to wear the clothes with comfort even when sweating.
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FIG. 1] FIG. 1A is a schematic explanatory diagram showing transfer of sweat in a normal state of conventional clothes,FIG. 1B is a schematic explanatory diagram showing transfer of sweat in a heavily sweating state thereof, andFIG. 1C is a schematic explanatory diagram showing transfer of sweat in a heavily sweating state of clothes according to an embodiment of the present invention. - [
FIG. 2] FIG. 2 is a photo showing a spread state of a clothing fabric according to the embodiment of the present invention (magnified by 2 times). - [
FIG. 3] FIG. 3A is a diagram illustratingFIG. 2 , andFIG. 3B is a schematic cross-sectional view thereof. - [
FIG. 4] FIG. 4A is a photo showing a spread state of a clothing fabric according to another embodiment (magnified by 2 times), andFIG. 4B is a photo showing a back face thereof (magnified by 2 times). - [
FIG. 5] FIG. 5A is a diagram illustratingFIG. 4A , andFIG. 5B is a diagram illustratingFIG. 4B . - [
FIG. 6] FIG. 6 is a photo showing a spread state of a clothing fabric according to another embodiment (magnified by 2 times). - [
FIG. 7] FIG. 7 is a diagram illustratingFIG. 6 . - [
FIG. 8] FIG. 8 shows clothing fabric samples according to examples and comparative examples of the present invention. - [
FIG. 9] FIG. 9A is a schematic explanatory diagram illustrating a method for measuring the amount of heat transferred into the outside air in a wet state according to the examples of the present invention, andFIGS. 9B and 9C are photos showing a measuring apparatus therefor. - [
FIG. 10] FIGS. 10A and 10B are explanatory diagrams illustrating a method for measuring the heat dissipation from clothes in a sweating state, as a measurement of the amount of heat transferred into the outside air in a wet state. - [
FIG. 11] FIG. 11 is a graph showing wear test results of shirts according to the examples and comparative examples. - [
FIG. 12] FIG. 12 is a graph showing wear test results of shirts according to the examples and comparative examples. - The present invention is directed to a clothing fabric including: through holes that pass through the fabric in the thickness direction, wherein the through holes are arranged along one direction of the fabric. The term "one direction" refers to a warp direction of the fabric and the through holes are arranged along a warp direction. The reason for this is that, when the fabric is formed into clothes, the through holes are preferably arranged along a warp direction. The performance of the present invention can be ensured by arranging the through holes so as to appear at constant intervals in a warp direction. The fabric is a knitted fabric. A water-repellent or hydrophobic region is arranged at least at part of the fabric in contact with the through holes, and a hydrophilic region is arranged at the other portions. In this description, "at least part of the fabric in contact with the through holes" refers to 10% or more, preferably 20% or more, and more preferably 30% or more. With this structure, moisture is likely to be transferred from the vicinity of the through holes to the hydrophilic region, and a film of a liquid is not formed in the vicinity of the through holes. As a result, it is possible to provide a clothing fabric and clothes using the same that can ensure air permeability of the through holes even when the clothing fabric is wet with sweat, thereby increasing the effective sweat amount, preventing exercise performance from being lowered, and allowing a person to wear the clothes with comfort even when sweating. The through holes may have any planar shape, such as a circle, an oval, a quadrangle, a rhombus, a triangle, a polygon, or an irregular shape.
- According to the fabric of the present invention, a water-repellent or hydrophobic region is arranged at part of the through holes, and thus the surface tension increases due to capillary action of the through holes. Accordingly, moisture on the fabric surface is likely to be transferred, and a film of a liquid is not formed at the through holes. Furthermore, even when moisture is filled into the through hole, its surface tension differs from portion to portion because a hydrophilic region is arranged at a portion thereof and a water-repellent or hydrophobic region is arranged at another portion, and forces that are applied to the liquid at the through hole are not balanced, and thus a film of a liquid is not formed at the through hole. A water-repellent or hydrophobic region is preferably arranged around the through holes, and at least in contact with part of the through holes. A hydrophilic region is arranged at part of the fabric so as to absorb sweat excreted from the body surface. The hydrophilic region is preferably arranged in an area of at least 10% or more. The water-repellent or hydrophobic region can be formed through knitting with a water-repellent or hydrophobic yarn, or by applying a water-repellent or hydrophobic resin to the fabric. The hydrophilic region can be formed through knitting with a hydrophilic yarn, or by applying a hydrophilic resin to the fabric.
- According to the fabric of the present invention, a water-repellent or hydrophobic yarn is arranged at part of the through holes, and thus the surface tension increases due to capillary action of the through holes. Accordingly, moisture on the fabric surface is likely to be transferred, and a film of a liquid is not formed at the through holes. A water-repellent or hydrophobic yarn is preferably arranged around the through holes, and at least in contact with part of the through holes. A hydrophilic yarn is preferably arranged at part of the fabric so as to absorb sweat excreted from the body surface. The hydrophilic yarn is preferably arranged in an amount of at least 10% or more.
- Lines for facilitating flow of a liquid in the vertical direction when the fabric is positioned vertical to the ground are provided. The lines in the vertical direction are formed by continuously arranging the yarn density pattern, or water-repellent or hydrophobic region. The yarn density pattern is formed through methods such as the stitch density of the fabric, the number of twists of the yarn, the percentage of crimp, knitting techniques, embossing, or the like. In order to continuously arrange the water-repellent or hydrophobic region, it is necessary to realize a continuous arrangement of a water-repellent or hydrophobic yarn, such as a state in which a continuous yarn that is a water-repellent or hydrophobic yarn is knitted in warp knitting, or a state in which water-repellent or hydrophobic printing is performed in a stripe pattern or the like, for example. Lines in which lines with a constant length may regularly and repeatedly appear are not limited to straight lines, and may include curved lines in the shape of waves.
- In the present invention, examples of at least one fiber yarn (I) selected from water-repellent fiber yarns and hydrophobic fiber yarns include: hydrophobic fiber yarns such as polypropylene fiber yarns, polyethylene fiber yarns, and polyester (PET, etc.) yarns; yarns obtained by subjecting organic fiber yarns (e.g., the above-described hydrophobic fiber yarn) to water-repellent treatment; and yarn portions obtained by subjecting yarns in a fabric state to water-repellent treatment through printing. Examples of a hydrophilic fiber yarn (II) include: cellulose fiber spun yarns such as cotton spun yarns and rayons; highly crosslinked polyacrylate-based fiber spun yarns; mixed spun yarns of these fibers and polyester (PET, etc.) fibers; composite spun yarns (including siro spun yarns) of these fibers and polyester (PET, etc.) multifilament yarns; nylon yarns; polyester (PET, etc.) fiber yarns and the like subjected to hydrophilic treatment; and yarn portions obtained by subjecting yarns in a fabric state to hydrophilic treatment through printing. For example, it is possible that the at least one fiber yarn (I) selected from water-repellent fiber yarns and hydrophobic fiber yarns is used as a fiber constituting the through holes, and the hydrophilic fiber yarn (II) is used for the base portions.
- The portion using the hydrophilic fiber yarn preferably absorbs a liquid within 180 seconds as defined in the Dropping Test (JIS L 1907 A). It is more preferable to absorb a liquid within 60 seconds. When the Dropping Test (JIS L 1907 A) is performed, the fabric of the present invention is preferably such that the portion using the water-repellent or hydrophobic fiber yarn has higher water-retaining properties than the portion using the hydrophilic fiber yarn.
- According to the fabric of the present invention, the ratio between the areas of the water-repellent or hydrophobic region (A) and the hydrophilic region (B) occupying the clothing fabric is preferably A: B = 1 : 99 to 90 : 10, more preferably 2 : 98 to 85 : 15, and even more preferably 2 : 98 to 80 : 20. In this case, the area of the water-repellent or hydrophobic region (A), in continuous arrangement of a water-repellent or hydrophobic yarn such as when a continuous yarn that is a water-repellent or hydrophobic yarn is knitted in warp knitting, refers to an area obtained by multiplying the thickness of the yarn in a fabric state without load as measured using a digital microscope (product number VH-Z25, manufactured by Keyence Corporation) by the number of yarns constituting the fabric per unit area. Furthermore, in the case where the water-repellent or hydrophobic region (A) is formed by applying a resin, the area refers to an area of the resin applied per unit area. The region other than the water-repellent or hydrophobic region (A) is taken as the hydrophilic region (B), based on which the area ratio between the water-repellent or hydrophobic region (A) and the hydrophilic region (B) is calculated. Furthermore, the mass ratio between the at least one fiber yarn (I) selected from water-repellent fiber yarns and hydrophobic fiber yarns and the hydrophilic fiber yarn (II) is preferably A:B = 1 : 99 to 90 : 10, more preferably 2 : 98 to 85 : 15, and even more preferably 2 : 98 to 80 : 20, when the clothing fabric is taken as 100 mass%. Accordingly, moisture is more likely to be transferred, and a film of a liquid is not formed in the vicinity of the through holes.
- When the clothing fabric of the present invention is suspended such that the through holes are arranged along the vertical direction in a state where the fabric whose weight is taken as 100% is wet with 300% of moisture, the through holes have voids therein.
- The clothing fabric of the present invention is preferably such that grooves (lines) are formed in the same direction as the one direction along which the through holes are arranged. Accordingly, when the sweat amount increases, a liquid is likely to flow along the grooves (lines). The direction of the grooves (lines) preferably matches the direction of the wearer' height. Furthermore, the width of each of the grooves is preferably 0.1 to 30 mm, and more preferably 0.3 to 20 mm. The groove portions (lines) are preferably formed at fabric portions using at least one fiber yarn (I) selected from water-repellent fiber yarns and hydrophobic fiber yarns. The reason for this is for facilitating flowing of a liquid. The groove portions may be formed at knitted fabric portions using the water-repellent or hydrophobic fiber yarn by forming the knitted fabric portions using the hydrophilic fiber yarn relatively thick and the knitted fabric portions using the water-repellent or hydrophobic fiber yarn relatively thin.
- The size of each of the through holes is such that the average length in both the warp and weft directions is preferably 0.3 to 25 mm, and more preferably 0.3 to 20 mm. Accordingly, it is possible to provide a clothing fabric and clothes using the same that can further increase the effective sweat amount, prevent exercise performance from being lowered, and allow a person to wear the clothes with comfort even when sweating.
- The opening percentage of the clothing fabric is preferably 1 to 50%, and more preferably 2 to 40%. Accordingly, it is possible to provide a clothing fabric and clothes using the same that can further increase the effective sweat amount, prevent exercise performance from being lowered, and allow a person to wear the clothes with comfort even when sweating. The opening percentage refers to a proportion of the through holes occupying the fabric.
- The fiber yarn used in the clothing fabric of the present invention may be any yarn such as a spun yarn, a multifilament yarn, a crimping yarn obtained by treating a multifilament yarn, or the like. When a crimping yarn is used, yarns with different percentages of crimp are preferably arranged on the upper and lower sides. A high percentage of crimp increases the amount of water that can be retained, and a low percentage of crimp decreases the amount of water that can be retained. If these yarns are arranged on the upper and lower sides, liquid droplets become large, and transfer of the liquid droplets is repeatedly accelerated, and thus voids are ensured. When a twisted yarn is used, yarns of two or more types with numbers of twists that are different from each other by 100 times/m or more are preferably used.
- The fabric of the present invention is a knitted fabric. Examples of the knitted fabric include a circular knit, a weft knit, a warp knit (including a tricot knit and a raschel knit), a pile knit, and the like, and basically include a plain knit, a jersey knit, a rib knit, a smooth knit (interlock knit), a rubber knit, a pearl knit, a denbigh structure, a cord structure, an atlas structure, a chain structure, and an inlay structure, wherein through holes are formed along one of the warp, weft, and diagonal directions. In the case of a knitted fabric, woven stitches or knitted stitches stretch in planar directions when the fabric is wet, and the air permeability increases. Moreover, since the basis weight (weight per unit area) is small, a knitted fabric is suited to be used in a portion of clothes in which the amount of sweat is large. As a knitted fabric, knitted fabrics such as a warp knit (including a tricot knit and a raschel knit), a weft knit, a circular knit, and the like are preferable. In the present invention, the basis weight of the fabric is preferably 40 g/m2 or more and less than 300 g/m2. Since the fabric is used in a portion of clothes in which the amount of sweat is large, the fabric is preferably thin. The fabric of the present invention may be a one-way or two-way stretch fabric, and may include an elastic yarn made of polyurethane or the like.
- The clothes of the present invention contain the above-described fabric, wherein through holes that pass through a portion of the fabric in the thickness direction are arranged along the wearer' height or diagonal direction. Accordingly, moisture of sweat is likely to flow in the warp direction, and the air permeability of the through holes is ensured. The clothes are preferably used as sportswear. The clothes are preferably used particularly as sportswear that is used in a hot season when the amount of sweat is large. The fabric is arranged at least corresponding to a portion of a human body where the amount of sweat is large, and is formed into clothes. For example, the fabric may be used in the whole or part (corresponding to the underarms or the back, etc.) of a sport shirt, a T-shirt, an inner shirt, a training warmer, briefs, an ordinary shirt, or the like.
- Hereinafter, a clothing fabric according to a preferred embodiment of the present invention will be described with reference to the drawings. In the following drawings, the same reference numerals denote the same constituent elements.
FIG. 1A is a schematic explanatory diagram showing transfer of sweat in a normal state of conventional clothes.Sweat skin 11 is diffused toward the outside air via void portions of clothes 12a. 14 denotes an air flow.FIG. 1B is a schematic explanatory diagram showing transfer of sweat in a heavily sweating state of the conventional clothes. In a heavily sweating state, the clothes are wetter, a film of a liquid is formed, and the void portions ofclothes 12b disappear or decrease. Accordingly, thesweat 13 and theair 14 remain on the surface of theskin 11, ineffective sweating increases, exercise performance is lowered due to an increase in the core body temperature, and the clothes become more uncomfortable. - On the other hand,
FIG. 1C is a schematic explanatory diagram showing transfer of sweat in a heavily sweating state of clothes according to an embodiment of the present invention. Even when the clothes are wetter in a heavily sweating state, the voids of the through holes are maintained, and thus formation of a film of a liquid is suppressed. Accordingly, the air permeability of a fabric 12C is ensured, andsweat skin 11 is diffused toward the outside air via void portions ofclothes 12c. Furthermore, since sweat on the skin is always allowed to be evaporated on the body surface, the effective sweat amount increases, the exercise performance is prevented from being lowered, and the clothes are worn with comfort even when sweating. -
FIG. 2 is a photo showing a spread state of a clothing fabric according to the embodiment of the present invention (magnified by 2 times).FIG. 3A is a plan diagram illustratingFIG. 2 , andFIG. 3B is a schematic cross-sectional view thereof. Afabric 1 has throughholes 2 that pass through the fabric in the thickness direction, and the throughholes 2 are arranged along the warp direction of thefabric 1. A water-repellent orhydrophobic fiber yarn 3 is arranged at least at part of the fabric in contact with the throughholes 2, and ahydrophilic fiber yarn 4 is arranged at the other portions. The knitted fabric portions using thehydrophilic fiber yarn 4 are thick, and the knitted fabric portions using the water-repellent orhydrophobic fiber yarn 3 are thin, and thus groove portions (lines) 5 are formed in the warp direction. The portions in which the water-repellent orhydrophobic fiber yarn 3 is arranged form water-repellent or hydrophobic regions, and the portions in which thehydrophilic fiber yarn 4 is arranged form hydrophilic regions. -
FIG. 4A is a photo showing a spread state of a clothing fabric according to another embodiment (magnified by 2 times), andFIG. 4B is a photo showing a back face thereof (magnified by 2 times).FIG. 5A is a diagram illustratingFIG. 4A , andFIG. 5B is a diagram illustratingFIG. 4B . Afabric 6 has throughholes 2 that pass through the fabric in the thickness direction, and the throughholes 2 are arranged along the warp direction of thefabric 6. A water-repellent orhydrophobic fiber yarn 3 is arranged at least at part of the fabric in contact with the throughholes 2, and ahydrophilic fiber yarn 4 is arranged at the other portions.FIG. 6 is a photo showing a spread state of a clothing fabric according to another embodiment (magnified by 2 times).FIG. 7 is a diagram illustratingFIG. 6 . Afabric 7 has throughholes 2 that pass through the fabric in the thickness direction, and the throughholes 2 are arranged along the warp direction of thefabric 7. A water-repellent orhydrophobic fiber yarn 3 is arranged at least at part of the fabric in contact with the throughholes 2, and ahydrophilic fiber yarn 4 is arranged at the other portions. The knitted fabric portions using thehydrophilic fiber yarn 4 are thick, and the knitted fabric portions using the water-repellent orhydrophobic fiber yarn 3 are thin, and thus the groove portions (lines) 5 are formed in the warp direction. - Hereinafter, a more specific description will be given by way of examples. Note that the present invention is not to be interpreted as being limited to the following examples.
- Fabrics with compositions as shown in Table 1 were produced. A water-repellent or hydrophobic yarn I was used to form fabric portions including through holes, and a hydrophilic yarn II was used to form the other portions. Example 1 (development article A), Example 2 (development article B), Comparative Example 1 (comparative article a), Comparative Example 3 (comparative article c), and Comparative Example 4 (comparative article d) were for shirts, and Example 3 (development article C), Example 5 (development article E), and Comparative Example 2 (comparative article b) were for inner shirts. In Table 1, PET denotes a polyethylene terephthalate fiber yarn, PP denotes a polypropylene fiber yarn, and PU denotes a polyurethane fiber yarn. Furthermore, T denotes dicitex, f denotes the number of filaments, Count denotes the metric count, SD denotes semidull. The front faces and back faces of the fabrics according to development articles A to E of Examples 1 to 5 were as shown in
FIG. 8 . In Example 1, Example 2, Example 3, Example 5, and Comparative Example 4, a water-repellent yarn obtained by subjecting the surface of a PET fiber yarn to water-repellent treatment was used. Furthermore, in Example 4, a hydrophobic PP fiber yarn, and a mixed spun yarn of PET fibers and highly crosslinked polyacrylate-based fibers as a hydrophilic yarn were used.Table 1 Type Composition Yarns used I : II area ratio Basis weight (g/m2) Thickness (mm) (I: water-repellent or hydrophobic yarn) (II: hydrophilic yarn) Example 1 (dev.article A) Circular (double) PET 100% I: 66T/48f (water-repellent yarn) I: 10% 136 0.80 II: 44T/36f, SD83d/36f (hydrophilic yarn) II: 90% Example 2 (dev.article B) Warp (tricot) PET 100% I: 84T/72f (water-repellent yarn) I: 46% II: 54% 131 0.65 II: 84T/36f (hydrophilic yarn) Example 3 (dev.article C) Warp (tricot) PET 95 % PU 5%I: 33T/36f (PET water-repellent yarn) I: 2% 183 0.99 II: 110T/144f, 44T/84f (hydrophilic yarn) II: 98% Example 4 (dev.article D) Circular (single) PP 75% PET 20% Highly crosslinked polyacrylate-based fiber 5%I: 84T paralleled (PP: hydrophobic yarn) I: 75% 72 0.80 II: 25% II: 40 count (spun yarn: hydrophilic yarn) Example 5 (dev.article E) Circular (double) PET 100% I: 66T/48f (PET water-repellent yarn) I: 10% 80 0.63 II: 48T/36f, 56T/72f (hydrophilic yarn) II: 90% Com. Example 1 (com.article a) Circular (double) PET 100% II: 84T/72F, 84T/48F (only hydrophilic yarn) II: 100% 125 0.74 Com. Example 2 (com.article b) Warp (tricot) PET 84% PU 16% II: 56T/48F, 33T/36F, 22T (only hydrophilic yarn) II: 100% 184 0.57 Com. Example 3 (com.article c) Circular (double) PET 100% II: 84T/72F (only hydrophilic yarn) II: 100% 129 0.75 Com. Example 4 (com.article d) Circular (double) PET 100% I: 84T/72f (only water-repellent yarn) I: 100% 127 0.74 - The opening percentages of the articles according to Examples 1 to 5 and Comparative Examples 1 and 2 were measured. The opening percentages were measured as follows.
- (1) An image of a fabric is printed, and a quadrangular region defined by segments linking the centers of four through holes is cut.
- (2) A paper weight W1 of the cut quadrangular portion is measured.
- (3) Through holes contained in the cut quadrangular portion are cut, and their paper weight W2 is measured.
- (4) Opening percentage = (1-W2/W1)×100 is calculated.
- Table 2 shows the opening percentages of the fabrics.
Table 2 Example 1, 5 (dev.article A, E) Example 2 (dev.article B) Example 3 (dev.article C) Example 4 (dev.article D) Com.Example 1 (com.article a) Com.Example 2 (com.article b) Com.Example 3 (com.article c) Com.Example 4 (com.article d) Opening percentage (%) 6 5 17 30 0 0 7 7 - The ventilation resistances in a dry state and a wet state were measured. The measurement was performed using an Air Permeability Tester KES-F8 (manufactured by Kato Tech Co., Ltd.). The measurement was performed by releasing and sucking air into and from the atmosphere, detecting the pressures during the release and suction, and calculating a ventilation resistance R.
- Ventilation: 4 cc/cm2/sec. (constant ventilation method)
- Vent area: 2 πcm2
- The ventilation resistance in a dry state was measured at a temperature of 20°C and a relative humidity of 65%R.H. in a state where each fabric was dried.
- The ventilation resistance in a wet was measured while air was released and sucked parallel to the ground in a state where each fabric whose weight was taken as 100% was wet with 300% of moisture. The temperature and the humidity were as described above. The measuring method was as follows.
- (1) A fabric is held vertical to the ground.
- (2) The sample immersed in a water tank is taken out and the fabric is set in the tester.
- (3) Measurement is performed using the method as defined in the KES test manual.
- Table 3 shows the ventilation resistance values of the fabrics.
Table 3 Example 1 (dev.article A) Example 2 (dev.article B) Example 3 (dev.article C) Example 4 (dev.article D) Example 5 (dev.article E) Com.Example 1 (com.article a) Com.Example 2 (com.article b) Com.Example 3 (com.article c) Com.Example 4 (com.article d) Dry ventilation resistance (kPa·s/m2) 0.017 0.026 0.001 0.0008 0.021 0.035 0.092 0.019 0.020 Wet ventilation resistance (kPa·s/m2) 0.073 0.03 0.002 0.0014 0.072 15.5 21.34 0.17 0.19 - As is clear from Table 3, the articles according to the examples had lower ventilation resistance values in both the dry state and the wet state than those according to the comparative examples, and had significantly low ventilation resistance values especially in the wet state. If the ventilation resistance value in a wet state is 0.1 kPa·s/m2 or less, the wearer feels moisture escaping from the inside of the clothes to the outside of the clothes.
- The heat dissipations from the clothes in a sweating state were measured as measurement of the amounts of heat transferred into the outside air in a wet state. The conditions were set such that constant temperature and humidity vessel: 80°C, relative humidity: 95%R.H., and apparatus used: heat flow sensor Z (product number: 2015TC, manufactured by Hioki E.E. Corporation). The measuring apparatus was as shown in
FIGS. 9A to 9C , and the measuring method was as follows. - (1) A sample is placed over the edge of a cup such that the back face of the fabric is on the constant temperature and humidity vessel side.
- (2) The sample is immersed in ion exchange water for 1 minute or more.
- (3) The sample is taken out of the liquid such that the warp direction of the fabric matches the vertical direction, and is set within 5 seconds at an air outlet of the constant temperature and humidity vessel.
- (4) Measurement is started 5 seconds after the sample is taken out of the liquid.
- (5) Measurement is ended in 1 minute and 30 seconds in total.
- (6) Analysis is performed by calculating integral values from 1 to 15 seconds after the start of the measurement.
- Table 4 (shirt fabrics) and Table 5 (inner shirt fabrics) show the heat flow values of the fabrics.
Table 4 Example 1 (dev.article A) Example 2 (dev.article B) Example 4 (dev.article D) Example 5 (dev.article E) Com. Example 1 (com.article a) Com. Example 3 (com.article c) Com. Example 4 (com.article d) Heat flow (Wm2) 395.04 426.67 481.5 393.98 297.39 317.3 308.1 Table 5 Example 3 (dev.article C) Com. Example 2 (com.article b) Heat flow (Wm2) 438.21 300.13 - As shown in Tables 4 and 5, the articles according to Examples 1 to 5 (development articles A to E) had high heat flow values, and thus it seems that they can be worn with comfort.
- Next, the heat dissipations from the clothes in a sweating state were measured as measurement of the amounts of heat transferred into the outside air in a wet state. In the measurement, a heat flow sensor Z (product number: 2015TC, manufactured by Hioki E.E. Corporation) was used.
- (1) A sample in which a comparative article and a development article are respectively arranged on the left and right sides is produced, and the heat flow sensors are attached thereto as shown in
FIG. 10 . At that time, the heat flow sensors are spaced away from the clothes by 3 mm, and the direction in which heat is transferred from the inside of the clothes to the outside is taken as +. - (2) The wearer runs for 30 minutes on a treadmill set to a speed of 5 min/km, in an environmental test lab set to an environmental temperature of 28°C and 80%RH. Wind at a speed of 2.5 m/s is blown against the wearer from the front relative to the running.
- (3) Analysis is performed by calculating integral values of the amounts of heat transferred in 5 minutes in total from 25 to 30 minutes after the start of the measurement.
- Table 6 shows the results.
Table 6 Addition of transfer averages in periods Comparative article a Development article A Comparative article a Development article B Comparative article b Development article C Integral value (w/m2) -1302.87 2648.56 -4908 6197.96 -801.78 4135.99 - In the case of the comparative articles, transfer of heat from the inside of the clothes to the outside air stopped 15 to 20 minutes after the start of the running when the article was wet with the sweat of a subject, and thus these articles showed minus values. On the other hand, in the case of the articles according to the examples (development articles), even when the article was wet with sweat, the air permeability was maintained, and thus the sweat was allowed to evaporate. Accordingly, heat was dissipated to the outside, and thus these articles always showed plus values.
- Next, each fabric was sewn into a shirt, and the wear test was performed. The wear test was performed by causing a subject who was wearing the development articles and the comparative articles to perform exercise in the Kansai district in August. The comfort in a heavily sweating state was evaluated by a sensory evaluation (SD method, bipolar scale, five grades).
- The subject was a Japanese healthy male in his 20s to 40s.
- Monitoring was performed during running at 5 min/km for 30 minutes.
- Evaluation was performed while taking the sensation during an ordinary exercise as a reference (Fair).
- The subject wore nothing on the skin side under the development articles.
- Evaluation was performed in terms of (1) Wet area of fabric (a larger area means a poorer result), (2) Sweat absorption and quick dry, (3) Stickiness, (4) Air permeability, (5) Sweating timing (an earlier timing means a poorer result), and (6) Wear comfortability. The evaluation criteria were set to -2 (Poor), -1 (Slightly poor), 0 (Fair), 1 (Slightly good), and 2 (Good).
-
FIGS. 11 and 12 are graphs showing wear test results of shirts according to the examples and comparative examples. It is seen fromFIGS. 11 and 12 that the development articles outperformed the comparative articles in terms of the air permeability when the wear was wet with sweat, and the wearer of the development articles actually felt the concept of the articles according to the present invention. - The fabric of the present invention may be used, for example, in the whole or part (corresponding to the underarms or the back, etc.) of a sport shirt, a T-shirt, an inner shirt, briefs, tights, an ordinary shirt, or the like.
-
- 1, 6, 7
- Clothing fabric
- 2
- Through hole
- 3
- Water-repellent or hydrophobic fiber yarn
- 4
- Hydrophilic fiber yarn
- 5
- Groove portion (line)
- 11
- Skin
- 12a, 12b, 12c
- Clothes
- 13a and 13b
- Sweat
- 14
- Air flow
Claims (7)
- An article of clothing comprising a knitted clothing fabric (1) comprising throughholes (2) that pass through the fabric (1) in a thickness direction and arranged along a direction of a wearer's height,wherein a water-repellent or hydrophobic region is arranged at least at part of the fabric (1) in contact with the through holes (2), and a hydrophilic region isarranged at the other portions, whereinthe through holes (2) are arrayed along a warp direction of the fabric (1), knitted fabric portions using hydrophilic fiber yarn (4) are thick and knitted fabric portions using water-repellent or hydrophobic fiber yarn (3) are thin, so that groove portions (5) are formed in the direction along which the through holes (2) are arrayed,
- The article of clothing according to claim 1, wherein a ratio between areas of the water-repellent or hydrophobic region, A, and the hydrophilic region, B,occupying the clothing fabric is A : B = 1 : 99 to 90 : 10.
- The article of clothing according to claim 1 or 2, wherein a mass ratio between the at least one fiber yarn, I, selected from water-repellent fiber yarns and hydrophobic fiber yarns (3) and the hydrophilic fiber yarn (4), II, is I: II = 1 : 99 to 90 : 10, when the clothing fabric is taken as 100 mass%.
- The article of clothing according to any one of claims 1 to 3, wherein a size of each of the through holes (2) is such that an average length in both warp and weft directions is 0.3 to 25 mm.
- The article of clothing according to any one of claims 1 to 4, wherein an opening area percentage of the through holes (2) of the clothing fabric is 1 to 50%.
- The article of clothing according to any one of claims 1 to 5, wherein the groove portions each have a width of 0.1 to 30 mm.
- The article of clothing according to one of claims 1 to 6, wherein the article is sportswear.
Applications Claiming Priority (2)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP2018014466A JP6404507B1 (en) | 2018-01-31 | 2018-01-31 | Clothing fabric and clothing using the same |
PCT/JP2018/012152 WO2019150592A1 (en) | 2018-01-31 | 2018-03-26 | Clothing material and clothing using same |
Publications (2)
Publication Number | Publication Date |
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EP3520639A1 EP3520639A1 (en) | 2019-08-07 |
EP3520639B1 true EP3520639B1 (en) | 2021-12-01 |
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Application Number | Title | Priority Date | Filing Date |
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EP18199391.6A Active EP3520639B1 (en) | 2018-01-31 | 2018-10-09 | Article of clothing comprising a clothing fabric |
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EP (1) | EP3520639B1 (en) |
Families Citing this family (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
CN115135190A (en) * | 2020-02-26 | 2022-09-30 | 澳大利亚黑尼斯内衣有限公司 | Protective clothing |
EP4393337A1 (en) * | 2022-12-26 | 2024-07-03 | ASICS Corporation | Shirt |
Family Cites Families (6)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2001200452A (en) | 2000-01-19 | 2001-07-27 | Unitika Ltd | Fabric for running shirt |
JP2003096648A (en) | 2001-09-27 | 2003-04-03 | Unitica Fibers Ltd | Comfortable shirt fabric |
JP2006169648A (en) | 2004-12-13 | 2006-06-29 | Wacoal Corp | Method for knitting knitted fabric and clothes composed of knitted fabric |
JP4575199B2 (en) | 2005-03-10 | 2010-11-04 | 帝人ファイバー株式会社 | Woven knitted fabrics and textile products with little wetting |
GB2435048B (en) * | 2006-02-08 | 2011-01-26 | Umbro Internat Ltd | Fabric |
US8806663B2 (en) * | 2012-10-19 | 2014-08-19 | Under Armour, Inc. | Fabric having improved diffusion moisture capability and garments made therefrom |
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2018
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