TWI841761B - Cool Clothes - Google Patents

Abstract

The invention provides excellent contact coolness, continuous contact coolness, and can suppress the feeling of heat, and is suitable for wearing in offices, homes, etc. A kind of clothing is provided with one or more fans for sucking in external air between the clothing and the body, and the fabric of the clothing has a contact cold and hot sensation value Q-max of more than 0.30W/ ^cm2 and a gram weight of less than 250g/ ^m2 .

Description

Cool Clothes

The present invention relates to a cool garment which has excellent touch coolness, can provide a continuous touch coolness, can suppress the feeling of heat, and is suitable for wearing in offices, homes, and other wearing occasions.

In recent years, for the purpose of environmental protection, it is required to reduce carbon dioxide emissions into the atmosphere and save energy. In general households and offices, the main approach is to reduce the air conditioning load by appropriately setting the temperature of the heating and cooling machine, thereby achieving the purpose of energy saving. On the other hand, if the temperature setting of the heating and cooling machine is simply changed, it will deviate from the temperature and humidity area that the human body feels comfortable. Especially in summer, there will be a problem of feeling uncomfortable due to the rising temperature inside the clothes. Here, for fiber products such as bedding and underwear that directly touch the skin, contact cooling materials are used. These materials are designed to improve the thermal conductivity of the skin by using fibers with good thermal conductivity, increase the water absorption of fibers, and reduce the unevenness of the fiber surface to increase the contact area.

For example, the composite knitted fabric for cooling material proposed in Patent Document 1 uses a nanofiber nonwoven fabric composed of fibers with a diameter of more than 50 nm and less than 2.5 μm and made of polyurethane and elastic system polymer to obtain a cooling feeling. By layering with a woven fabric, the strength and air permeability of the composite knitted fabric can be maintained.

Furthermore, the fleece knitted fabric proposed in Patent Document 2 improves heat transfer in contact with the skin to suppress the temperature rise in the fiber product, and can effectively absorb moisture from transepidermal moisture loss to suppress humidity rise. Even when there is liquid sweat, it will not be sticky and can maintain the feeling of comfort for as long as possible. It is an excellent comfortable fabric using a composite yarn composed of long filaments with high thermal conductivity and cellulose staple fibers.

In addition to the above-mentioned technologies, there are also clothes that use fans installed in clothes to send outside air into the clothes to deal with the discomfort caused by the summer heat. There are proposals for such clothes: using the air sent from the fan to evaporate the sweat from the body, taking the evaporation heat from the surroundings when the sweat evaporates, and cooling the body, or using air circulation to increase the temperature slope near the body surface to cool the body. For example, the clothes proposed in Patent Document 3 are installed with a lining to force air flow between the outer surface and the lining, and the outside air sucked by the fan is sent to the outer surface and the lining of the clothes to cool the body.

Furthermore, the clothing proposed in Patent Document 4 cools the body by allowing air to flow into a flow path formed by a spacer inside the clothing. [Prior Technical Document] [Patent Document]

Patent document 1: Japanese Patent Publication No. 2011-68011 Patent document 2: Japanese Patent Publication No. 6454437 Patent document 3: Japanese Patent Publication No. 2018-168485 Patent document 4: International Publication No. 2003/103424

(Invent the problem you want to solve)

When wearing clothes made of fabrics using the techniques disclosed in Patent Documents 1 and 2, excellent contact coolness can be obtained at the moment of wearing. However, if the clothes are worn for a long time, for example, the fabric and the body are in a state of thermal equilibrium, and the heat conduction from the body to the fabric disappears or becomes weak, so that the coolness cannot be felt, and instead there is a problem of feeling extremely hot.

Furthermore, according to the technology disclosed in Patent Document 3, although air flow can be forced to be generated in the space between the outer surface and the lining to cool the body, in order to create a space inside the clothes, the fabric must be set as a double-layer structure of the outer surface and the lining. Because the outside air sucked into the clothes through the fan will cause the clothes to swell, and the lining will continue to contact the skin, there will be a problem of losing the cool feeling. In addition, when the fan stops, there will be a problem of strong feeling of heat due to the double-layer structure of the outer surface and the lining.

Similarly, according to the technology disclosed in Patent Document 4, the sweat can be vaporized and the body can be cooled by circulating air in the air flow path inside the clothes, but the outside air sucked into the clothes by the fan will cause the clothes to swell, and the coolness of the fabric cannot be felt. In addition, a partition is provided to ensure the air flow path, so the fabric does not touch the body even when the fan stops, so there is a problem that the body cannot feel the coolness. In addition, because a high-density fabric is used, there is also a problem of high heat sensation.

Therefore, the present invention is completed to solve the above problems. The subject is to provide: cool clothing with excellent touch coolness, continuous touch coolness, and can suppress the feeling of heat, and is still suitable for wearing even in offices, homes, etc. (Technical means to solve the problem)

To solve the above problems, the cool clothing of the present invention has the following structure. That is, a kind of clothing is equipped with one or more fans between the clothing and the body for sucking in external air, and the fabric of the above clothing has a gram weight of less than 250g/ ^m2 and a contact thermal sensation value Q-max of more than 0.30W/ ^cm2 .

The cool clothing of the present invention is preferably made of fabric having a total fiber density of 100 dtex or less.

The cool clothing of the present invention is preferably one in which the moisture absorption and release parameter ΔMR of the fabric of the clothing is greater than 3.0%.

The cool clothing of the present invention is preferably such that at least a portion of the fibers constituting the fabric of the clothing contain a polyamide component.

The cooling clothing of the present invention preferably has the fan composed of air supply blades, a motor, and a battery, and the total weight of the fan is less than 200g. (Compared with the efficacy of the prior art)

According to the present invention, a cool clothing is provided which has excellent touch coolness, continuous touch coolness, and can suppress the feeling of heat. In particular, the cool clothing of the present invention is suitable for wearing in offices, homes, and other occasions.

The cool clothing of the present invention is a structure that draws outside air between the clothing and the body. The key point is that it has one or more fans for drawing outside air between the clothing and the body. By drawing outside air through the fans, air flow is forcibly generated between the clothing and the body, causing the clothing to flutter, and the number of times the body and the clothing come into contact with each other can be made to be a better frequency. If the number of times the body and the clothing come into contact with each other is made to be a better frequency, heat conduction from the body to the clothing can be suppressed, and the body can repeatedly feel a cool touch when the clothing flutters and the like and touches the body. In addition, by drawing outside air into the clothing and generating air circulation inside the clothing, ventilation can be achieved, and the feeling of heat can be reduced. There is no particular limit to the number of fans that a garment can have. From the perspective of reducing the total weight of the fans and ensuring wearing comfort, it is preferably 5 or less.

The fabric used in the cool clothing of the present invention must have a gram weight of less than 250g/ ^m2 . If the gram weight exceeds 250g/ ^m2 , the fabric will be stiff and difficult to move. Even if the external air is sucked in from the fan, it is still difficult to form space in the clothing, so the number of contacts between the body and the clothing cannot be optimized. In addition, the air cannot be circulated efficiently in the clothing. The gram weight of the fabric is preferably less than 230g/ ^m2 , and more preferably less than 200g/ ^m2 . There is no special restriction on the lower limit of the relevant gram weight. From the perspective of improving the operability, wearability and durability of the fabric, it is preferably more than 50g/ ^m2 .

The fabric used in the cool clothing of the present invention must have a contact cold and hot sensation value Q-max of 0.30W/ ^cm2 or more as measured by the method described later in the embodiment. The contact cold and hot sensation value Q-max is the maximum heat absorption rate when the fabric is instantly transferred. If the fabric with a larger Q-max touches the human body, the human body will feel cool, and if the fabric with a smaller Q-max touches the human body, the human body will feel warm. If the fabric with a Q-max of less than 0.30W/ ^cm2 is used in clothing, the user will not feel the contact coolness when wearing it. It is preferably 0.35W/ ^cm2 or more, and more preferably 0.40W/ ^cm2 or more.

The moisture absorption and release parameter ΔMR of the fabric used in the cool clothing of the present invention is preferably 3.0% or more. ΔMR is the difference in moisture absorption rate of the fabric under the temperature and humidity state represented by 30℃×90%RH at high temperature and high humidity and the standard state represented by 20℃×65%RH at temperature and humidity, that is, when the temperature and humidity change occurs, it indicates the moisture regulating ability of the fabric to absorb and/or desorb water. The higher the ΔMR, the more it can reduce the stuffiness and stickiness during sweating, and the more it can improve the wearing comfort of the clothing. If ΔMR reaches 3.0% or more, the fabric has a high moisture regulating ability and can achieve moderate comfort. The better ΔMR range is 3.5% or more, and the particularly good range is 4.0% or more. There is no particular upper limit to the ΔMR range. The level that can usually be achieved with technology is around 17%, which becomes the actual upper limit.

The fabric used in the cool clothing of the present invention preferably has an air permeability of 10cc/ ^cm2 /sec or more. By setting it within this range, the evaporation of sweat is excellent, which can not only reduce the feeling of stuffiness, stickiness, and heat during sweating, but also prevent the clothes from over-expanding due to the external air sucked in by the fan, and can make the clothes flutter appropriately, so that the number of times of contact between the body and the clothes can be set to a better frequency. More preferably, it is 50cc/ ^cm2 /sec or more, particularly preferably, it is 100cc/ ^cm2 /sec or more, and the best is 150cc/ ^cm2 /sec or more. There is no particular upper limit on air permeability. From the perspective of obtaining good mechanical properties of fabrics, improving the smoothness and operability of fabric and clothing manufacturing, and ensuring that the fabric is not too thin, does not cause discomfort when worn, and can become durable clothing, the best practical value is 250cc/ ^cm2 /sec or less.

The fiber material used in the fabric of the cool clothing of the present invention can be any material such as synthetic fiber, semi-synthetic fiber, natural fiber, etc., for example: polyester fiber, polyamide fiber, polyacrylic fiber, rayon fiber, acetate fiber, polyolefin fiber, polyurethane fiber, cotton, linen, silk, wool, etc., but not limited to them. In addition, the fabric can be composed of only one kind of fiber material, or it can be composed of a plurality of fibers combined into a twisted yarn. In particular, from the perspective of excellent mechanical properties, durability, and excellent fiber moisture absorption and release performance, it is better to use polyamide fiber as part of the fabric.

The fiber used in the cool clothing fabric of the present invention can be in any form, such as long fiber (filament) or short fiber (staple). In the case of long fiber, it can be a single filament composed of one single fiber, or a multifilament composed of a plurality of single fibers. In the case of short fiber, there is no limitation on the cut length and the number of curling. In addition, it can also be subjected to post-processing such as false twisting and twisting.

The total fiber density of the fiber used in the cool clothing fabric of the present invention in the form of filaments is not particularly limited, and can be appropriately selected according to the purpose and required characteristics, preferably below 100 dtex. By setting it within this range, the softness of the clothes will not be damaged, and the external air sucked from the fan can produce a moderate flutter of the clothes, which can make the number of contacts between the body and the clothes become the best frequency. It is more preferably below 90 dtex, and particularly preferably below 80 dtex. There is no special lower limit for the total fiber density. The level that can be achieved by the usual technology is about 4 dtex, which becomes the actual lower limit.

The single fiber density of the fiber used in the fabric of the cool clothing of the present invention is not particularly limited and can be appropriately selected according to the purpose and required characteristics, preferably below 5.0 dtex. The so-called "single fiber density" in the present invention refers to the quotient of the total fiber density of the fiber used in the fabric divided by the single fiber number of the constituent fibers. By setting it within this range, the softness of the clothes will not be damaged, and the external air sucked from the fan can produce a moderate fluttering of the clothes, which can make the number of contacts between the body and the clothes become the best frequency. It is more preferably below 2.5 dtex, and particularly preferably below 1.5 dtex. The lower limit of the single fiber density is preferably above 0.3dtex from the perspective of smoothness and good operability during the manufacturing of fibers, fabrics, and clothing, and less pilling during use, making it a durable cool garment.

The fiber used in the cool clothing fabric of the present invention preferably has a strength of 1.5 cN/dtex or more, but by taking countermeasures such as using other fibers in combination when making the fabric, it can be used without problems even if it is below 1.5 cN/dtex. The elongation can be appropriately set according to the purpose, but from the perspective of processability when processing into fabric, it is preferably 25% or more and 60% or less.

The cross-sectional shape of the fiber used in the cool clothing fabric of the present invention is not limited to a circular cross-sectional shape, but can also adopt various cross-sectional shapes such as flat, Y-shaped, T-shaped, hollow, field-shaped, well-shaped, etc.

The fabric of the cool clothing fabric of the present invention can be knitted fabric, woven fabric, velvet fabric, non-woven fabric, etc. It can be any knitted fabric or woven fabric, preferably, for example, plain weave, woven weave, satin weave, double weave or their variations; warp knitting, weft knitting, circular knitting, lace knitting or their variations.

The shape of the cool clothing of the present invention is not particularly limited, and it can be either a top or a bottom. The top can be long-sleeved or short-sleeved, and the bottom can be a long skirt or a short skirt. In the present invention, "top" refers to the clothes worn on the upper body, and "bottom" refers to the clothes worn on the lower body. Specific examples of the top of the present invention include: inner wear, sports vest, camisole and other inner wear; T-shirts, POLO shirts, slit knitwear, pajamas, women's short cover, short jacket, work clothes and other general clothes; sports inner wear, sports T-shirts and other sportswear, etc., but it is not limited to them. Furthermore, specific examples of the bottoms of the present invention include, for example, inner wear such as leggings, suit pants, underwear, skirts, pajamas, work clothes and other general clothes; sportswear such as sports underwear, etc., but are not limited to them.

The fan used in the cool clothing of the present invention is composed of: air supply blades, motors and batteries. The total weight of the fan is preferably less than 200g. By setting it within this range, the clothes are not easy to fall down due to the weight of the air supply blades, motors and batteries, and the external air sucked by the fan is easy to form space in the clothes, so the number of contacts between the body and the clothes can be set to a better frequency, and the air can be efficiently circulated in the clothes. The total weight of the fan is more preferably less than 150g, and particularly preferably less than 100g.

The fan used in the cool clothing of the present invention preferably has an outer diameter of 10 to 60 mm for the air supply blades constituting the fan. By setting the outer diameter of the air supply blades within this range, a sufficient air volume can be obtained to supply the outside air into the clothing, and the noise when the fan is driven is reduced, which can reduce the discomfort caused by the fan, so that the clothing can be made to be excellent in wearing comfort. More preferably, it is 15 to 50 mm, and particularly preferably, it is 20 to 40 mm.

The fans used in the cool clothing of the present invention preferably have a total flow rate of outside air sucked in by all fans of the clothing of less than 5L/sec. By setting it within this range, the noise when the fans are driven becomes smaller, and the clothing will not be over-expanded by the outside air sucked in by the fans, and the clothing can be appropriately fluttered, so that the number of times of contact between the body and the clothing can be set to a better frequency. More preferably, it is less than 3L/sec, and particularly preferably, it is less than 1L/sec.

The fan used in the cooling clothing of the present invention is preferably a centrifugal fan or a cross-flow fan. Because both centrifugal fans and cross-flow fans can blow air in a direction slightly perpendicular to the fan's rotation axis, by using a centrifugal fan or a cross-flow fan, it is easy to blow directional external air in a direction slightly parallel to the body. By blowing air in a direction slightly parallel to the body, the clothes are less likely to expand than when the air is blown in a direction slightly perpendicular to the body, so appropriate clothing fluttering can be generated, and the number of contacts between the body and the clothes can be set to a preferred frequency. The motor of the fan used in the cooling clothing of the present invention is preferably a DC motor. By setting the motor as a DC motor, it can operate stably even at a low voltage.

The battery for supplying power to the motor of the fan used in the cooling clothing of the present invention is not limited, and examples thereof include: lead storage battery, alkaline storage battery, nickel-cadmium battery, nickel-hydrogen battery, and lithium-ion battery. In particular, from the perspective of miniaturization and high capacity, lithium-ion batteries are preferably used. [Example]

The present invention is described in detail using the embodiments, but the present invention is not limited to the embodiments. In addition, each characteristic value in the embodiments is measured using the following method.

A.Total fiber density The total fiber density of the fabric sample is measured according to the method described in JIS L1096:2010 "Test methods for knitted and woven fabrics".

B. Weight The weight of fabric (g/m ² ) is calculated by measuring the weight of the fabric cut into four sides of 10 cm and dividing it by the fabric area (100 cm ² ).

CQ-max (W/cm ² ) Place the fabric to be measured and the device (KES-F7 THERMO LABO II TYPE (manufactured by KATO TECH Co., Ltd.)) in a room adjusted to a temperature of 20°C and a relative humidity of 60% for more than 12 hours. In order to make the heat transfer measured by the T-BOX in contact with the fabric to be 10°C higher than the room temperature, the heat-storing hot plate BT is set to 30°C, and the hot plate G-BT protecting the hot plate BT is set to 20.3°C to stabilize it in order to heat the hot plate BT. Place the back of the fabric to be measured (the side facing the skin when worn) facing up, place the T-BOX on the fabric to be measured as soon as possible, and measure Q-max. The gram weight of the fabric to be measured is the value measured according to the method B above. D.ΔMR Weigh about 1~2g of the fabric sample into a weighing bottle, dry it at 110℃ for 2 hours, measure the mass, and set the mass as _w0 . Then, keep the dried fiber sample at 20℃ and relative humidity 65% for 24 hours, measure its mass, and set the mass as w65 _% . Then, adjust the temperature to 30℃ and relative humidity 90%, keep the fiber sample for 24 hours, measure the mass, and set the mass as w90 _% . Calculate ΔMR according to the following formula.

MR ₁ =[(w _65% -w ₀ )/w ₀ ]×100 MR ₂ =[(w _90% -w ₀ )/w ₀ ]×100 ΔMR=MR ₂ -MR ₁

E. Air permeability Measured according to JIS L1096 (2010) 8.26.1 Air permeability A method (Frazier method).

F. Durability of contact coolness Twenty subjects were asked to sit quietly on a chair in a room with an indoor temperature of 28°C and a relative humidity of 65% in the summer when the air conditioner was turned on. The subjects were asked to wear the cool clothing made in the embodiment. The fabric contact coolness evaluation standard for the moment of wearing the clothing was 5 points for "strongly feeling cool", 4 points for "feeling cool", 3 points for "slightly feeling cool", 2 points for "almost no feeling cool", and 1 point for "no feeling cool at all". The average of all the evaluation scores of the 20 subjects was calculated. Then, the same evaluation of the coolness of the fabric was performed every 10 minutes until 1 hour had passed, a total of 6 times, and the average of all evaluation scores of the 20 subjects at each time was calculated. If the average of the evaluation scores at the moment of wearing and every 10 minutes thereafter, a total of 7 times, was 3.0 points or more, it was rated as "passed", and if it was 4.0 points or more, it was rated as "excellent". G. Heat sensation Twenty subjects were asked to wear the cool clothes made in the embodiment. Next, assuming that the indoor temperature is 30℃ and the relative humidity is 60% in the summer without turning on the air conditioner, after sitting quietly on a chair for 1 hour, the evaluation standard for the feeling of heat inside the clothes at this time is "no feeling of heat at all" is rated as 5 points, "almost no feeling of heat" is rated as 4 points, "slightly feel heat" is rated as 3 points, "feel heat" is rated as 2 points, and "strongly feel heat" is rated as 1 point. The average of all evaluation scores of the 20 test subjects was calculated, and the case with an average value of 3.0 points or more was rated as "pass", and the case with an average value of 4.0 points or more was rated as "excellent".

H. Wearing feeling Twenty subjects were asked to wear the cooling clothes made in the embodiment. The evaluation criteria for wearing feeling were as follows: "no discomfort caused by weight, wearing, or fan noise" was rated as 5 points, "almost no discomfort caused by weight, wearing, or fan noise" was rated as 4 points, "slightly any discomfort caused by weight, wearing, or fan noise" was rated as 3 points for "feeling uncomfortable due to weight, wearing discomfort, or fan noise", 2 points for "feeling any discomfort due to weight, wearing discomfort, or fan noise", 1 point for "feeling any discomfort due to weight, wearing discomfort, or fan noise", and the average of all evaluation scores of the 20 subjects was calculated. An average score of 3.0 or above was rated as "acceptable", and an average score of 4.0 or above was rated as "excellent".

I. A characteristic sound pressure level of the fan In a room with an ambient noise of 40 dB or less, a human model was made to wear the cooling clothing made in the above embodiment, and the fan was rotated at an air volume of 1 m ³ /min. Then, the A characteristic sound pressure level was measured using a noise meter (SoundTest-Master manufactured by Umarex) arranged at a position 50 cm away from the fan mounting port of the clothing in the direction of the fan rotation axis, and the average value for 5 seconds was calculated. (Example 1) A pique-textured yarn composed of 56 dtex-36 filament polyamide long fibers formed by polycaprolactam with a polyvinyl pyrrolidone addition rate of 5.0 wt% was used to produce a knitted fabric with a concave-convex structure (pique) according to a known method, and the obtained knitted fabric was sewn to produce a POLO shirt-style clothing. The Q-max of the knitted fabric is 0.35W/cm ² , the gram weight is 185g/m ² , the ΔMR is 4.0%, and the air permeability is 154cc/cm ² /sec. Two openings are set 20cm upward from the lower part of the back of the POLO shirt. A centrifugal fan with a total weight of 98g and an outer diameter of 30mm is installed in each opening. The total flow rate of external air sucked from the fan is set to 0.7L/sec, and a cooling garment that blows air upward in a direction slightly parallel to the body is produced and worn. The evaluation results are shown in Table 1. (Example 2) Cool clothing was produced in the same manner as in Example 1, except that the Q-max of the knitted fabric was set to 0.37 W/cm ² and the grammage was set to 235 g/m ^2. The wear test was conducted. The evaluation results are shown in Table 1. (Example 3) Cool clothing was produced in the same manner as in Example 1, except that the Q-max of the knitted fabric was set to 0.30 W/cm ² and the ΔMR was set to 3.0%. The wear test was conducted. The evaluation results are shown in Table 1. (Example 4) Except for using a centrifugal fan with a total weight of 172g of fan, motor and battery and an outer diameter of 50mm, the rest of the cooling clothes were made in the same way as in Example 1 and the wearing test was carried out. The evaluation results obtained are shown in Table 1. (Example 5) Except for setting the total flow rate of external air sucked by the fan to 3.5L/sec, the rest of the cooling clothes were made in the same way as in Example 1 and the wearing test was carried out. The evaluation results obtained are shown in Table 1. (Example 6) Except for using a false twisted yarn composed of 84dtex-36 filaments of polyamide long fibers formed by polycaprolactam with a polyvinyl pyrrolidone addition rate of 5.0% by weight, and setting the air permeability to 70cc/ ^cm2 /sec, the same method as in Example 2 was used to produce cool clothing and a wearing test was carried out. The evaluation results obtained are shown in Table 1. (Example 7) Polo shirt-style clothing was produced in the same manner as in Example 1, and an opening was provided at a position 30cm upward from the lower part of the clothing on the back of the polo shirt, and a pocket-shaped storage portion composed of a knitted fabric forming the polo shirt was provided near the inner side of the clothing. A centrifugal fan with a total weight of 98g and an outer diameter of 30mm, including the fan, motor, and battery, was placed in the pocket, and the total flow rate of external air sucked from the fan was set to 0.7L/sec, and a cooling garment that blows air upward in a direction slightly parallel to the body was made, and a wearing test was carried out. The evaluation results obtained are shown in Table 1. (Comparative Example 1) The POLO shirt made in Example 1 was worn without the centrifugal fan installed. The evaluation results obtained are shown in Table 1. Because there is no air supply from the fan, the clothes will not flutter, and the contact coolness lacks continuity. (Comparative Example 2) Except for using a fake twisted yarn composed of 56dtex-144 filaments of polyamide long fibers formed by polycaprolactam with a polyvinyl pyrrolidone addition rate of 5.0 weight%, and setting the gram weight to 255g/ ^m2 , the rest of the cool clothes were made in the same way as in Example 1, and a wearing test was carried out. The evaluation results obtained are shown in Table 1. The fabric gram weight is heavy, the clothes do not flutter, and the contact coolness is lacking in sustainability. (Comparative Example 3) A non-breathable moisture-permeable film was installed on the lining of the cool clothes made in Example 1, and a cool clothes with a gram weight of 300g/ ^m2 and an air permeability of 8cc/ ^cm2 /sec was made, and a wearing test was carried out. The evaluation results are shown in Table 1. Because the fabric has a heavy grammage and low air permeability, the clothes do not flutter and lack continuous coolness. The test subjects feel hot and uncomfortable when wearing them. (Comparative Example 4) A woven fabric with a concave-convex structure is made according to a known method using a polyester filament of 84dtex-36 filament formed by polyethylene terephthalate without additives. The obtained woven fabric is sewn to make a POLO shirt-style garment. The Q-max of the garment is 0.23W/ ^cm2 , the grammage is 185g/ ^m2 , the ΔMR is 0.0%, and the air flow is 154cc/ ^cm2 /sec. Two openings were set 20cm upward from the lower part of the back of the POLO shirt. A centrifugal fan with a total weight of 98g and an outer diameter of 30mm was installed in each opening. The total flow rate of external air sucked from the fan was set to 0.7L/sec. A cooling garment that blows air upward in a direction roughly parallel to the body was produced and worn. The evaluation results are shown in Table 1, showing that the Q-max of the fabric is low, there is a lack of coolness from the beginning of wearing, and a feeling of heat is felt.

[Table 1] [Table 1] Embodiment 1 Embodiment 2 Embodiment 3 Embodiment 4 Embodiment 5 Embodiment 6 Embodiment 7 Comparison Example 1 Comparison Example 2 Comparison Example 3 Comparison Example 4 Fan Total weight of fan and battery (g) 98 98 98 172 98 98 98 - 98 98 98 Number of fans 2 2 2 2 2 2 1 0 2 2 2 Fan outer diameter (mm) 30 30 30 50 30 30 30 - 30 30 30 Total flow rate of external air sucked in by the fan (L/sec) 0.7 0.7 0.7 0.7 3.5 0.7 0.7 - 0.7 0.7 0.7 The direction of air flow from the fan to the body Slightly parallel + upward Slightly parallel + upward Slightly parallel + upward Slightly parallel + upward Slightly parallel + upward Slightly parallel + upward Slightly parallel + upward - Slightly parallel + upward Slightly parallel + upward Slightly parallel + upward Fabric properties Q-max(W/cm ² ) 0.35 0.37 0.30 0.35 0.35 0.37 0.35 0.35 0.35 0.35 0.23 Weight (g/m ² ) 185 235 185 185 185 235 185 185 255 300 185 ΔMR(%) 4.0 4.0 3.0 4.0 4.0 4.0 4.0 4.0 4.0 4.0 0.0 Air permeability (cc/cm ² /sec) 154 154 154 154 154 70 154 154 154 8 154 Fiber properties Polymer species Polyamide + PVP Polyamide + PVP Polyamide Polyamide + PVP Polyamide + PVP Polyamide 4-PVP Polyamide + PVP Polyamide + PVP Polyamide + PVP Polyamide + PVP Polyester Total fiber density(dtex) 56 56 56 56 56 84 56 56 56 56 84 Single fiber density (dtex) 1.6 1.6 1.6 1.6 1.6 2.3 1.6 1.6 0.4 1.6 2.3 Reviews Coolness to touch (score) When wearing 4.2 4.2 3.4 4.1 4.4 4.1 4.2 4.1 4.1 3.5 3.2 10 minutes later 4.1 4.0 3.4 3.7 4.2 4.0 4.0 3.0 3.5 3.2 2.0 20 minutes later 4.0 4.0 3.3 3.5 4.1 4.1 4.1 2.2 3.0 2.9 1.7 30 minutes later 4.0 3.7 3.2 3.2 4.0 3.7 4.0 1.8 2.8 2.5 1.2 40 minutes later 4.0 3.6 3.3 3.3 4.1 3.6 4.0 1.9 2.6 2.1 1.3 50 minutes later 4.1 3.6 3.1 3.1 3.9 3.4 4.1 1.7 2.6 2.0 1.3 60 minutes later 4.0 3.4 3.0 3.2 3.8 3.3 4.0 1.7 2.5 1.7 1.2 Heat sensation (score) 4.1 3.8 3.4 4.0 4.0 3.1 4.0 3.4 3.8 1.7 2.8 Wearing feeling (score) 4.0 4.0 4.0 3.4 3.0 3.3 4.1 5.0 4.1 2.5 4.0 A characteristic sound pressure level of fan (dB) 45 45 45 47 50 45 43 - 45 45 45 PVP: Polyvinylpyrrolidone (Industrial Availability)

The cool clothing of the present invention has excellent touch coolness, and can provide continuous touch coolness, and can suppress the feeling of heat, and is suitable for wearing in offices, homes, and other occasions.

Claims (9)

A kind of clothing is provided with one or more fans for sucking in external air between the clothing and the body, and the fabric of the clothing has a gram weight of less than 250g/ ^m2 and a contact thermal sensation value Q-max of more than 0.30W/ ^cm2 . As for the clothing of claim 1, wherein the total fiber fineness of the fiber constituting the above-mentioned clothing fabric is less than 100 dtex. As for the clothing of claim 1, wherein the moisture absorption and release parameter ΔMR of the clothing fabric is greater than 3.0%. As for the clothing of claim 2, wherein the moisture absorption and release parameter ΔMR of the clothing fabric is greater than 3.0%. As for the clothing of claim 1, at least a part of the fibers constituting the fabric of the clothing contains a polyamide component. As for the clothing of claim 2, wherein at least a part of the fibers constituting the fabric of the clothing contains a polyamide component. As for the clothing of claim 3, wherein at least a part of the fibers constituting the fabric of the clothing contains a polyamide component. As for the clothing of claim 4, wherein at least a part of the fibers constituting the fabric of the clothing contains a polyamide component. As for the clothing of any one of claims 1 to 8, the above-mentioned fan is composed of air supply blades, a motor and a battery, and the total weight of the fan is less than 200g.