JP2021055247A - Garment - Google Patents

Abstract

To provide a garment capable of keeping an environment inside a garment comfortable by suppressing hot feeling, being excellent in silence and designability, and being comfortably worn even in a wearing scene such as an office and a household.SOLUTION: A garment is made of a single fabric having an air permeability of 55 to 500 cc/cm2/sec, and comprises a power supply unit and a blower fan unit. The blower fan unit is arranged at the back part of the garment.SELECTED DRAWING: Figure 1

Description

The present invention relates to an air-conditioned garment having good wearing comfort even in a wearing scene such as an office or a home.

In recent years, there has been a demand for reducing carbon dioxide emissions to the atmosphere and thus saving energy for the purpose of environmental protection.In general households and offices, the load is reduced mainly by adjusting the set temperature of heating and cooling equipment. Efforts are being made to save energy. On the other hand, simply changing the set temperature of the heating / cooling equipment deviates from the temperature / humidity range that humans feel comfortable with. Especially in the summer, it becomes a problem to feel discomfort such as a feeling of heat due to an increase in the temperature inside clothes. Therefore, clothes for maintaining comfort by taking in outside air into clothes by using a fan have been proposed.

For example, Patent Document 1 proposes a garment that promotes the vaporization of sweat and cools the body by flowing a flow rate of air into the garment according to individual differences such as the weight of the wearer and the purpose of use.

Further, in Patent Document 2 and Patent Document 3, it is possible to forcibly generate an air flow between the outer material and the lining by attaching the lining, and the outside air taken in by the fan is taken between the outer material and the lining of the clothes. Clothes that cool the body by blowing air into the body have been proposed.

International Publication No. 2005/063065 Japanese Unexamined Patent Publication No. 2018-168485 JP-A-2019-127675

According to the technique disclosed in Patent Document 1, it is possible to promote the vaporization of sweat by setting the flow rate of air to an appropriate flow rate according to individual differences such as the weight of the wearer and the purpose of use. However, because the material is practically impervious to air, the clothes are inflated by the outside air taken into the clothes through the fan, which impairs the design in everyday wearing scenes such as offices and homes, and is small. When using a fan, a spacer for securing an air flow path is required, and there is a problem that the comfort when worn is inferior.

According to the techniques disclosed in Patent Documents 2 and 3, it is possible to forcibly generate an air flow in the space between the outer material and the lining to cool the body by having the outer material and the lining on the garment. Is. However, in order to create an air flow space in the clothes, it is essential that the fabric has a double structure of outer material and lining, and it is necessary to supply a constant amount of air to form the air flow space in the clothes. Therefore, in order to obtain the air volume, it is necessary to take measures such as increasing the size of the fan and increasing the rotation speed. Since these measures increase the noise of the rotating shaft of the fan, there is a problem that the wearing comfort is impaired in daily wearing scenes such as offices and homes. Furthermore, when outside air is taken into the space between the outer material and the lining, the lining swells and comes into contact with the body, but the lining absorbs sweat, causing sweat chilling, which is a problem. In addition, when the fan is stopped, there is a problem that the feeling of heat is high due to the double structure of the outer material and the lining.

Therefore, the present invention is intended to solve the above-mentioned problems, and is worn in offices, homes, etc., which suppresses the feeling of heat, keeps the environment inside clothes comfortable, and is excellent in quietness and design. It is an object of the present invention to provide clothes having good wearing comfort.

As a result of diligent studies, the present inventors have completed an invention having any of the following configurations in order to solve the above problems.
(1) A garment having a breathability of 55 to 500 cc / cm ² / sec, which is provided with a power supply unit and a blower fan unit, and the blower fan unit is provided on the back of the garment. Clothes characterized by that.
(2) The garment according to (1) above, wherein the outer diameter of the blower fan unit is 80 mm or less.
(3) The garment according to (1) or (2) above, wherein the blower fan unit blows air in a direction substantially perpendicular to the fan axis direction.
(4) The garment according to any one of (1) to (3) above, wherein the garment is made of a fabric using at least a part of hygroscopic fibers.
(5) The garment according to (4) above, wherein the moisture absorption / desorption parameter ΔMR of the hygroscopic fiber is 2.0% or more.

According to the present invention, since the feeling of heat is suppressed, the environment inside the garment can be kept comfortable, and the garment is excellent in quietness and design, so that the garment has good wearing comfort. Therefore, the garment of the present invention can be suitably used not only in the work site but also in the wearing scene such as an office or a home.

It is the schematic explanatory drawing of the garment which shows one Embodiment of this invention. FIG. 1a is a schematic explanatory view of the back surface of the garment, and FIG. 1b is a schematic explanatory view of the side surface of the garment. It is the schematic explanatory drawing of the pocket-shaped blower fan unit attachment part which shows one Embodiment of this invention. FIG. 2a is a schematic explanatory view when the air is blown substantially parallel upward to the body, FIG. 2b is a schematic explanatory view when the air is blown substantially parallel downward to the body, and FIG. 2c is a schematic explanatory view when the air is blown substantially parallel to the body. It is a schematic explanatory drawing at the time of blowing air. It is the schematic explanatory drawing of the rubber string-shaped blower fan unit attachment part which shows one Embodiment of this invention. FIG. 3a is a schematic explanatory view of the inside of the garment, and FIG. 3b is a schematic explanatory view of the side surface of the mounting portion.

The garment of the present invention has a structure for taking in outside air between the garment and the body, and more specifically, for supplying electric power to the blast fan unit for taking in the outside air between the garment and the body and the blast fan unit. It is important to have a power supply unit of. The body can be efficiently cooled by applying the outside air taken in through the blower fan unit to, for example, the point where the blood vessels of the body are concentrated. In addition, by forcibly creating an air flow between the clothes and the body by the taken-in outside air and circulating the air inside the clothes, ventilation inside the clothes becomes possible and the feeling of heat can be reduced. .. The blower fan unit may be in any form as long as it is provided with a fan and a motor for rotating the fan. For example, the blower fan unit may be in a form integrated with wiring connected to the power supply unit. , Or the power supply unit may also be integrated. The power supply unit may be any as long as it supplies electric power to the blower fan unit, and is connected to the blower fan unit via wiring such as a power cable having connection terminals at both ends (not shown). Further, as the power supply unit, a battery such as a primary battery, a secondary battery, or a solar cell may be used, or a commercial power supply via a power adapter may be used. Examples include lead-acid batteries, alkaline batteries, nickel-cadmium batteries, nickel-metal hydride batteries, and lithium-ion batteries. In particular, it is preferable to use a lithium ion battery because it can be miniaturized and has a large capacity.

In the clothes of the present invention, as shown in FIG. 1, it is important that the blower fan unit 1 is provided on the back of the clothes. The back of the garment is a portion of the garment that covers the back side of the body, and is a portion of the portion corresponding to the back body 2 excluding the side portion of the garment. The side portion is a portion from the sewn portion 5 connecting the back body 2 and the front body 4 of the garment to 60 mm toward the back surface side of the garment. In a garment made of circular knitted fabric without a sewn portion 5, the portion up to 60 mm from the crease on the side surface of the garment to the back side of the garment that occurs when the garment is placed on a flat surface with the back surface of the garment facing down is the side of the garment. It is a department. By providing the blower fan unit on the back of the clothes, the outside air taken in by the blower fan unit can be circulated over the entire back surface of the body. On the back of the body, the whole body sweats due to thermal stimulation, and the eccrine sweat glands involved in thermoregulation are large, and the amount of sweating is large, so that the feeling of stuffiness and stickiness due to sweat is likely to occur. In addition, the back of the body can be divided into the scapular part, the spinal column, and the lumbar region. Especially, the scapular region and the lumbar region have many cold spots related to human cooling sensation, and these parts should be cooled. And humans tend to feel cold. Therefore, by blowing air from the blower fan unit to the back of the body, it is possible to promote the vaporization of sweat, suppress the feeling of stuffiness and stickiness, and cool the body by the heat of vaporization of sweat. In addition, by blowing outside air lower than the body temperature, the cold point of the body can be stimulated and the body can be cooled efficiently.

The blower fan unit used for the clothes of the present invention preferably has an outer diameter of 80 mm or less. By setting the outer diameter of the fan provided in the blower fan unit to such a range, it is possible to reduce the discomfort when wearing the blower fan unit provided on the back of the garment, and the garment is excellent in wearing comfort. .. In addition, a sufficient amount of air can be obtained to send the outside air into the clothes, and the noise when the blower fan unit is driven is reduced. It is more preferably 60 mm or less, still more preferably 40 mm or less. The lower limit of the outer diameter of the fan provided in the blower fan unit is preferably 20 mm from the viewpoint of obtaining a sufficient air volume for sending the outside air into the clothes.

The blower fan unit used for the clothes of the present invention preferably blows air in a direction substantially perpendicular to the fan axis direction. By blowing air in a direction substantially perpendicular to the fan axis direction, it becomes easy to blow outside air having directivity in a direction substantially parallel to the body. By blowing air in a direction substantially parallel to the body, turbulence is less likely to occur in the space inside the clothes compared to the case where air is blown in a direction substantially perpendicular to the body, and the back surface of the body can be cooled efficiently. It can be done, and clothes are less likely to swell. The substantially vertical direction referred to here means that the blowing direction of the outside air taken in by the fan intersects the fan axis, for example, an angle of 90 ° ± 30 ° with respect to the fan axis. A state that forms.

The fan provided in the blower fan unit used for the clothes of the present invention is preferably a centrifugal fan or a cross flow fan. Since the centrifugal fan or the cross flow fan can blow air in a direction substantially perpendicular to the rotation axis of the fan, as described above, it is easy to blow outside air having directivity in a direction substantially parallel to the body. It becomes.

The blower fan unit used for the clothes of the present invention preferably has a total flow rate of outside air taken in from all the blower fan units provided in the clothes of 5 L / sec or less. Within this range, the noise when the fan is driven is reduced, and the clothes are not excessively swelled by the outside air taken in from the fan, so that the wearing comfort is improved. It is more preferably 3 L / sec or less, still more preferably 1 L / sec or less.

The total weight of the blower fan unit used for the clothes of the present invention is preferably 200 g or less. Within this range, the weight of the blower fan unit makes it difficult for clothes to hang down, and the outside air taken in from the fan makes it easier to form a space inside the clothes, so air can be efficiently circulated inside the clothes. It becomes. It is more preferably 150 g or less, still more preferably 100 g or less.

The method of equipping the garment with the blower fan unit used for the garment of the present invention is not limited, but for example, a bag-shaped pocket made of a fabric having the same composition as the garment fabric is provided inside the garment, and the pocket is provided with a bag-shaped pocket. Examples include a method of inserting a blower fan unit and a method of sewing an elastic material such as a rubber cord inside clothes and fixing the blower fan unit with the elastic material such as a rubber cord. The above method is preferable because the blower fan unit can be easily removed when washing clothes.

The air permeability of the fabric used for the garment of the present invention needs to be ^{55 to 500 cc / cm 2 / sec.} The air permeability of the fabric in the present invention refers to a value calculated according to JIS L1096: 2010 (fabric test method for woven fabrics and knitted fabrics) 8.26.1 (method A). As described above, the clothes of the present invention are provided with a blower fan unit on the back of the clothes, and can blow air to the back of the body. In order to maximize the effect of suppressing stuffiness and stickiness and the effect of cooling the body, it is necessary to increase the distance that the outside air flows through the clothes. For example, a blower fan unit is attached to the hem of the clothes to cover the clothes. It is preferable to blow air to the entire back surface of the body by a method of blowing air in a direction or a method of attaching a blower fan unit to the collar of the clothes and blowing the air downwards of the clothes. However, when trying to blow air over the entire back surface of the body, the distance from the blower fan unit to the collar, sleeves, and hem, which are the openings of the garment, becomes longer, but generally to create airflow in the straight pipe. Since the required pressure increases in proportion to the length of the straight pipe, the pressure required to create an air flow in the space inside the garment, which is a minute space between the garment and the body, is also from the blower fan unit into the garment. It increases in proportion to the distance to the part where the air escapes. Further, when the distance from the blower fan unit to the portion where the air in the clothes escapes becomes long, turbulence tends to occur in the space inside the clothes, and the effect of suppressing the feeling of stuffiness and stickiness and the effect of cooling the body tend to decrease.

However, if the air permeability of the fabric is 55 cc / cm ² / sec or more, the airflow in the space inside the clothes easily passes through the fabric, so that the pressure required to blow air to the entire back surface of the body increases and the space inside the clothes is disturbed. The generation of flow can be suppressed. In addition, it has excellent transpiration of sweat, and can reduce the feeling of stuffiness, stickiness, and heat when sweating. Further, the clothes do not swell too much due to the outside air taken in from the blower fan unit, and the aesthetics are excellent. When the air permeability of the fabric is ^{less than 55 cc / cm 2} / sec, the blast pressure rises from the blast fan unit required to generate airflow in the space inside the garment, causing the garment to swell, which is suitable for wearing scenes such as offices and homes. Cannot be worn on. Further, since turbulence is generated in the space inside the clothes, a feeling of heat is generated. The air permeability of the dough is preferably 100 cc / cm ² / sec or more, more preferably 150 cc / cm ² / sec or more.

Further, when the air permeability of the fabric is 500 cc / cm ² / sec or less, good mechanical properties of the fabric can be obtained, the process passability and handleability at the time of manufacturing the fabric and clothes are improved, and the fabric becomes thin. In spite of the fact that the garment is made of a single piece of fabric without lining, the garment has excellent durability without any discomfort when worn. If the air permeability of the fabric is made ^{larger than 500 cc / cm 2} / sec, the airflow in the space inside the clothes can easily remove the fabric, which can reduce the feeling of stuffiness, stickiness, and heat. The garment is inferior in aesthetics because it is not durable when worn and the fabric is thin. The air permeability of the dough is preferably 400 cc / cm ² / sec or less, more preferably 300 cc / cm ² / sec or less.

The fabric used for the garment of the present invention ^{preferably has a basis weight of 250 g / m 2} or less. By setting the basis weight to 250 g / m ² or less, the fabric becomes soft and easy to move, and the outside air taken in from the blower fan unit makes it easier to form a space inside the clothes, so it is possible to efficiently distribute air inside the clothes. Become. Further, since the appropriate flexibility of the clothes is obtained, the clothes do not hang down due to the weight of the blower fan unit, and the wearing comfort is improved. The basis weight of the dough is more preferably 230 g / m ² or less, still more preferably 200 g / m ² or less. The lower limit of the basis weight is not particularly limited, but it is preferably ^{50 g / m 2 or more in order to improve the handleability, wearability and durability of the fabric.}

It is important that the garment of the present invention is made of a single piece of fabric. By making it from a single piece of fabric, it is possible to reduce the pressure required to create an air flow in the space between the clothes and the body with the outside air taken in from the blower fan unit, and it has excellent sweat transpiration and when sweating. You can reduce the feeling of stuffiness, stickiness, and heat. For clothes that are made of two or more fabrics and have an outer material and a lining, if the outside air taken in from the blower fan unit is blown into the space between the body and the lining, the outer material and the lining will be made even if the air permeability of the outer material and the lining is increased. The air in the space between them becomes the retention layer. Therefore, even if an attempt is made to blow air over the entire back surface of the body, the distance from the blower fan unit to the collar, sleeves, and hem, which are the openings of the clothes, becomes long, and the air flows into the space inside the clothes, which is a minute space between the clothes and the body. The pressure required to generate is increased. In addition, when the outside air taken in from the blower fan unit is blown into the space between the outer material and the lining, the airflow escapes from the highly ventilated outer material, and the airflow is less likely to occur in the space between the body and the lining, cooling the body. The effect of doing is inferior. Furthermore, if the garment is made of two or more fabrics and has an outer material and a lining, it is unpleasant to feel a strong feeling of heat, especially when the fan is stopped. In the present invention, since the garment is made of a single piece of cloth, it is difficult to feel the heat even when the fan is stopped, and the comfort can be improved. In the present invention, the term "single fabric" refers to a state in which the garment is substantially unlined, and has pockets or the like partially or double sleeves or collar edges. It is not an exclusion. However, such a portion is preferably 30% or less of the surface area of the entire garment.

Further, as the fabric constituting the garment of the present invention, a woven fabric, a knitted fabric, a pile fabric, a non-woven fabric and the like can be used, and any woven structure or knitted structure may be used. For example, plain weave, twill weave, satin weave, double weave or a variation of these, warp knitting, weft knitting, circular knitting, lace knitting or a variation of these can be preferably adopted.

The garment of the present invention is preferably made of a fabric using at least a part of hygroscopic fibers. By using hygroscopic fibers as part of the fabric, the humidity in the space inside the clothes, that is, the relative humidity in the space inside the clothes can be reduced by absorbing or adsorbing water vapor, so that the feeling of stuffiness, stickiness, and heat during sweating can be reduced. The feeling can be reduced.

Specific examples of the hygroscopic fiber may be any fiber material such as synthetic fiber, semi-synthetic fiber, and natural fiber. For example, polyester fiber, polyamide fiber, polyacrylic fiber, rayon fiber, acetate fiber, and polyolefin. Examples include, but are not limited to, fiber, polyurethane fiber, cotton, linen, silk, wool and the like. Further, the dough may be composed of one kind of fibers, the dough may be formed by combining a plurality of fibers, or the dough may be formed by combining a plurality of fibers as a composite yarn. Among these fibers, polyamide fibers or polyester fibers are preferable because they are excellent in mechanical properties and durability.

The hygroscopic fiber preferably has a moisture absorption / desorption parameter ΔMR of 2.0% or more. ΔMR is the difference in the moisture absorption rate of the fabric at high temperature and high humidity represented by 30 ° C. × 90% RH and at the standard temperature and humidity represented by 20 ° C. × 65% RH, that is, a change in temperature and humidity occurs. It shows the high humidity control ability of the fabric that adsorbs and / or desorbs water at the time, and the higher the ΔMR, the less stuffy and sticky feeling when sweating, and the more comfortable it is to wear clothes. improves. When ΔMR is 2.0% or more, the humidity control ability of the fabric is high and appropriate comfort can be obtained. The more preferable range of ΔMR is 2.5% or more, and the more preferable range is 3.0% or more. There is no particular upper limit to the range of ΔMR, but the level that can be achieved by ordinary technology is about 17%, which is a practical upper limit.

The form of the fiber used for the cloth of the garment of the present invention may be any form such as long fiber (filament) and short fiber (staple). In the case of long fibers, it may be a monofilament composed of one single yarn or a multifilament composed of a plurality of single yarns. In the case of short fibers, there are no restrictions on the cut length and the number of crimps. Further, post-processing such as false twisting or twisting may be performed.

The fiber used for the garment fabric of the present invention is not particularly limited in the total fineness in the filament form, and can be appropriately selected depending on the application and required characteristics, but is preferably 100 dtex or less. Within this range, not only is it possible to obtain appropriate flexibility of the garment, the shape of the garment is well maintained and the handleability is improved, but also the weight of the blower fan unit prevents the garment from hanging down, which makes it comfortable to wear. improves. It is more preferably 90 dtex or less, still more preferably 80 dtex or less. The lower limit of the total fineness is not particularly limited, but the level that can be achieved by ordinary techniques is about 4 dtex, which is a practical lower limit.

The fiber used for the garment fabric of the present invention is not particularly limited in single yarn fineness and can be appropriately selected depending on the application and required characteristics, but is preferably 5.0 dtex or less. The single yarn fineness in the present invention indicates a value obtained by dividing the total fineness of the fibers used in the fabric by the number of single yarns constituting the fibers. Within this range, appropriate flexibility of the garment can be obtained, the shape of the garment is well maintained and the handleability is improved, and the garment does not hang down due to the weight of the blower fan unit, and the wearability is improved. To do. It is more preferably 3.5 dtex or less, still more preferably 2.0 dtex or less. The lower limit of the single yarn fineness is 0. Since the garment has good process passability and handleability during manufacturing of fibers, fabrics and garments, and has less fluffing during use and has excellent durability. It is preferably 3 dtex or more.

The fibers used for the garment fabric of the present invention preferably have a strength of 1.5 cN / dtex or more, but by taking measures such as using them in combination with other fibers when producing the fabric, 1 It can be used without problems even at 5.5 cN / dtex or less. The elongation may be appropriately set according to the intended use, but is preferably 25% or more and 60% or less from the viewpoint of processability when processing the dough.

As the cross-sectional shape of the fiber used for the cloth of the garment of the present invention, not only a round cross-sectional shape but also a wide variety of cross-sectional shapes such as flat, Y-shaped, T-shaped, hollow-shaped, paddy-shaped, and well-shaped can be adopted.

The form of the garment of the present invention is not particularly limited as long as it is a top, and may be long-sleeved, short-sleeved, or sleeveless. In the present invention, the upper garment is garment worn on the upper body, and specific examples thereof include underwear such as inner shirts, tank tops, and camisole, vests, T-shirts, polo shirts, cut-and-sew, pajamas, blouses, bruzon, and work clothes. Examples include, but are not limited to, general clothing, sports inner shirts, sports clothing such as sports shirts, and the like.

The present invention will be described in detail with reference to Examples, but the present invention is not limited to these Examples. In addition, each characteristic value in an Example was measured by using the following method.

A. Total Fineness JIS L1096: 2010 “Fabric test method for woven fabrics and knitted fabrics” The total fineness of the fibers constituting the fabric sample was measured according to the method described in 8.9.1. When the fabric sample was a woven fabric, the warp and weft were each measured three times based on the B method, and the average value was calculated. When the dough sample was a knitted fabric, the measurement was performed 5 times and the average value was calculated. The average value calculated for each was taken as the total fineness.

B. Number of single fibers The fiber sample extracted from the fabric in order to measure the total fineness in item A was calculated by loosening the sample so as to be divided into single fibers and counting the number of separated single fibers. The measurement was performed 5 times, and the average value was taken as the number of single fibers.

C. Tensile strength and elongation Using the fiber sample extracted from the fabric to measure the total fineness in item A, "TENSILON" (registered trademark) UCT-100 manufactured by Orientec Co., Ltd. was used as a measuring device, and a chemical fiber filament was used. The measurement was carried out under the constant speed elongation condition shown in the yarn test method (JIS L1013 (2010)). The elongation was determined from the elongation of the point showing the maximum strength on the tensile strength-elongation curve. The tensile strength was defined as the value obtained by dividing the maximum strength by the fineness. The measurement was performed 10 times, and the average value was taken as the tensile strength and the elongation.

D. Metsuke JIS L1096: 2010 “Fabric test method for woven fabrics and knitted fabrics” The basis weight (g / m ² ) of the fabric was calculated according to the method described in 8.3.2 (Method B). The measurement was performed on two dough samples, and the average value was used as a basis weight.

E. Moisture absorption and desorption parameters (ΔMR)
Fibers Samples 1~2g about weighed in a weighing bottle, and measuring the mass after drying for 2 hours at 110 ° C., the mass was w _0. Next, the dried fiber sample was held at a temperature of 20 ° C. and a relative humidity of 65% for 24 hours, and then the mass was measured, and this mass was defined as w _65% . Subsequently, the temperature was adjusted to 30 ° C. and the relative humidity was 90%, the fiber sample was held for 24 hours, and then the mass was measured, and this mass was set to w _90% . ΔMR was calculated by the following formula.
MR ₁ = [(w _65% -w ₀ ) / w ₀ ] x 100
MR ₂ = [(w _90% -w ₀ ) / w ₀ ] x 100
ΔMR = MR _2- MR ₁
The measurement was performed 5 times per sample, and the average value was defined as ΔMR.

F. Air permeability JIS L1096 (2010) 8.26.1 Measured according to the air permeability A method (Frazier type method). The measurement was performed 5 times, and the average value was calculated and used as the air permeability.

G. Feeling of heat Twenty subjects were made to wear air-conditioned clothes prepared according to Examples and Comparative Examples. Next, regarding the situation inside the clothes after sitting in a chair for 1 hour and resting in a room with a temperature of 30 ° C and a relative humidity of 60%, assuming an indoor environment in the summer when air conditioning is not effective, "I feel no heat. 5 points for "I don't feel the heat", 4 points for "I hardly feel the heat", 3 points for "I feel the heat slightly", 2 points for "I feel the heat", and 1 point for "I feel the heat strongly". As points, the average score given by each of the 20 subjects was calculated, and a pass was given when the average score was 3.0 points or higher, and an excellent score was given when the average score was 4.0 points or higher.

H. Wearing feeling Twenty subjects were made to wear the air-conditioned clothes prepared according to the examples and comparative examples, and 5 points were given as "no feeling of weight, no discomfort due to wearing, no discomfort due to fan noise", "feeling of weight," 4 points for "almost no discomfort due to wearing or discomfort due to fan noise", 3 points for "slightly any discomfort due to weight, discomfort due to wearing, or discomfort due to fan noise", "heavy feeling, Twenty subjects scored 2 points for "there is discomfort due to wearing or discomfort due to the sound of the fan" and 1 point for "there is a strong feeling of weight, discomfort due to wearing, or discomfort due to the sound of the fan". The average score of each score was calculated, and a pass was given when the average score was 3.0 points or higher, and an excellent score was given when the average score was 4.0 points or higher.

I. In a room where the A characteristic sound pressure level of the fan was 40 dB or less, the air-conditioned clothes prepared according to Examples and Comparative Examples were worn on the mannequin, and the fan was rotated so ^{that the air volume was 1 m 3 / min.} Subsequently, the A-characteristic sound pressure level was measured with a sound level meter (SoundTest-Master manufactured by Umarex) placed 50 cm away from the fan attachment port of the clothes in the fan rotation axis direction, and the average value for 5 seconds was obtained. ..

(Example 1)
A knitted fabric made of Kanoko structure was prepared by a known method using a false twisted yarn made of polyamide filaments of 56dtex-36 filaments made of polycaprolactam having a polyvinylpyrrolidone addition rate of 5.0% by weight, and the obtained knitting was obtained. By sewing the ground, a polo shirt-like garment made of a single piece of fabric was produced. The ΔMR of the fiber was 4.0%, the basis weight of the knitted fabric was 185 g / m ² , and the air permeability was 175 cc / cm ² / sec. The back of the polo shirt is provided with two openings 20 cm above the lower part of the garment and 10 cm from the sewn portions on the left and right sides of the garment, and covers the openings as shown in FIG. 2a. A pocket was provided on the inside of the garment with a fabric made of a knitted fabric having the same structure as the garment fabric. Then, a blower fan unit (including a power supply unit), which consists of a centrifugal fan that blows air in a direction substantially perpendicular to a fan shaft having an outer diameter of 30 mm and has a total weight of 75 g, is attached to clothes by putting it in the pocket of each opening. Assuming that the total flow rate of the outside air taken in from the fan was 0.7 L / sec, an air-conditioned garment that blows air upward in a direction substantially parallel to the body was prepared and a wearing test was conducted. The obtained evaluation results are shown in Table 1.

(Example 2)
An air-conditioned garment was prepared in the same manner as in Example 1 except that the basis weight of the knitted fabric was 220 g / m ² and the air permeability was 110 cc / cm ^{2 / sec, and a wearing test was carried out.} The obtained evaluation results are shown in Table 1.

(Example 3)
Air-conditioned garments were prepared in the same manner as in Example 1 except that the basis weight of the knitted fabric was 245 g / m ² and the air permeability was 70 cc / cm ^{2 / sec, and a wearing test was carried out.} The obtained evaluation results are shown in Table 1.

(Example 4)
Using a blower fan unit consisting of a centrifugal fan with an outer diameter of 80 mm, air-conditioned clothing was prepared in the same manner as in Example 1 except that the total flow rate of the outside air taken in from the fan was 3.5 L / sec, and a wearing test was conducted. did. The obtained evaluation results are shown in Table 1.

(Example 5)
Examples except that a blower fan unit composed of an axial flow fan that blows air in a direction substantially parallel to the fan shaft is attached to clothes as shown in FIG. 2c and blown so as to take in outside air in a direction substantially perpendicular to the body. An air-conditioned garment was prepared in the same manner as in 1, and a wearing test was carried out. The obtained evaluation results are shown in Table 1.

(Example 6)
84dtex-36 filament composite polyester with a sea-island composite cross section containing polyethylene terephthalate obtained by copolymerizing 30% by weight of polyethylene glycol (PEG6000S manufactured by Sanyo Kasei Kogyo Co., Ltd.) having a number average molecular weight of 8300 g / mol as an island component and polyethylene terephthalate as a sea component. A knitted fabric made of a Kanoko structure was prepared by a known method using a false twisted yarn made of long fibers, and the obtained knitted fabric was sewn to prepare a polo shirt-shaped garment made of a single piece of fabric. The ΔMR of the fiber was 4.0%, the basis weight of the knitted fabric was 177 g / m ² , and the air permeability was 154 ^{cc / cm 2} / sec. Other than that, air-conditioned clothes were prepared by the same method as in Example 1, and a wearing test was carried out. The obtained evaluation results are shown in Table 2.

(Example 7)
Using a false twisted yarn made of 56dtex-36 filament polyamide filaments made of polycaprolactam without additives, a knitted fabric made of Kanoko structure is prepared by a known method, and the obtained knitted fabric is sewn. I made a polo shirt-like garment made of a single piece of fabric. The ΔMR of the fiber was 2.5%, the basis weight of the knitted fabric was 169 g / m ² , and the air permeability was 164 cc / cm ² / sec. Other than that, air-conditioned clothes were prepared by the same method as in Example 1, and a wearing test was carried out. The obtained evaluation results are shown in Table 2.

(Example 8)
Using a false twisted yarn made of 56dtex-36 filament polyester filaments made of polyethylene terephthalate containing no additives, a knitted fabric made of Kanoko structure is prepared by a known method, and the obtained knitted fabric is sewn. As a result, a polo shirt-like garment made of a single piece of fabric was produced. The ΔMR of the fiber was 0.1%, the basis weight of the knitted fabric was 195 g / m ² , and the air permeability was 155 cc / cm ² / sec. Other than that, air-conditioned clothes were prepared by the same method as in Example 1, and a wearing test was carried out. The obtained evaluation results are shown in Table 2.

(Example 9)
Two openings are provided on the back of the polo shirt 10 cm below the upper part of the garment and 10 cm from the sewn parts on the left and right sides of the garment, and as shown in FIG. 2b, the garment covers the openings. Inside, pockets were provided with a fabric made of knitted fabric with the same structure as the fabric of the garment. Then, a blower fan unit consisting of a centrifugal fan that blows air in a direction substantially perpendicular to a fan shaft having an outer diameter of 30 mm is attached to clothes by putting it in the pocket of each opening, and the direction of air blown from the blower fan unit is applied to the body. On the other hand, air-conditioned garments were prepared in the same manner as in Example 1 except that they were oriented downward in a substantially parallel direction, and a wearing test was carried out. The obtained evaluation results are shown in Table 2.

(Example 10)
An air-conditioned garment was prepared in the same manner as in Example 1 except that the basis weight of the knitted fabric was 120 g / m ² and the air permeability was 295 cc / cm ^{2 / sec, and a wearing test was carried out.} The obtained evaluation results are shown in Table 2.

(Example 11)
An air-conditioned garment was prepared in the same manner as in Example 1 except that the basis weight of the knitted fabric was 103 g / m ² and the air permeability was 385 cc / cm ^{2 / sec, and a wearing test was carried out.} The obtained evaluation results are shown in Table 2.

(Example 12)
Air-conditioned garments were prepared in the same manner as in Example 1 except that the basis weight of the knitted fabric was 65 g / m ² and the air permeability was 490 cc / cm ^{2 / sec, and a wearing test was carried out.} The obtained evaluation results are shown in Table 2.

(Example 13)
A polyether ester amide copolymer (manufactured by Alchema Co., Ltd.) in which polycaprolactam containing 1.85% by weight of titanium oxide is used as an additive and polyethylene glycol having a number average molecular weight of 1500 g / mol is copolymerized at a molar ratio of 76%. Using a false twisted yarn made of a composite polyamide long fiber of 78dtex-24 filaments having a core-sheath composite cross section containing MH1657) as a core component, a knitted fabric made of a plain structure containing 10% by weight of polyurethane fiber was prepared by a known method. Then, the obtained knitted fabric was sewn to produce a tank top shirt-like garment made of a single piece of fabric. The ΔMR of the fiber was 7.5%, the basis weight of the knitted fabric was 160 g / m ² , and the air permeability was 83 cc / cm ² / sec. A rubber cord was sewn attached to the back of the tank top shirt at a position 40 cm above the lower part of the garment, at the same distance from the sewn portions on the left and right sides of the garment, at the center of the back, and inside the garment. Then, a blower fan unit (including a power supply unit), which is composed of a centrifugal fan that blows air in a direction substantially perpendicular to a fan shaft having an outer diameter of 50 mm and has a total weight of 85 g, is attached with the rubber cord as shown in FIGS. 3a and 3b. An air-conditioned garment that was attached to the garment and blown upward in a direction substantially parallel to the body was prepared with the total flow rate of the outside air taken in from the fan being 1.2 L / sec, and a wearing test was carried out. The obtained evaluation results are shown in Table 3.

(Example 14)
1.5 mol% of 5-sulfoisophthalic acid sodium salt and 1.0% by weight of polyethylene glycol (PEG1000 manufactured by Sanyo Kasei Kogyo Co., Ltd.) having a number average molecular weight of 1000 g / mol are copolymerized, and 1.5% by weight of titanium oxide is contained as an additive. Using false-twisted yarn made of 56dtex-24 filament polyester filaments made of polyethylene terephthalate, a knitted fabric containing 10% by weight of polyurethane fibers was prepared by a known method, and the obtained knitted fabric was prepared. By sewing, a tank top shirt-like garment made of a single piece of fabric was produced. The ΔMR of the fiber was 0.1%, the basis weight of the knitted fabric was 174 g / m ² , and the air permeability was 205 cc / cm ² / sec. Other than that, air-conditioned clothes were prepared in the same manner as in Example 13, and a wearing test was carried out. The obtained evaluation results are shown in Table 3.

(Example 15)
A wearing test was carried out by wearing the air-conditioned garment produced in Example 13 and wearing a commercially available polo shirt made of 100% cotton. The obtained evaluation results are shown in Table 3.

(Example 16)
A wearing test was carried out by wearing the air-conditioned garment prepared in Example 14 and wearing a commercially available polo shirt made of 100% cotton. The obtained evaluation results are shown in Table 3.

(Comparative Example 1)
A wearing test was carried out on the polo shirt produced in Example 1 without attaching a centrifugal fan. As shown in Table 4 of the obtained evaluation results, the wearer felt a feeling of heat because there was no air blown from the fan, resulting in poor wearing comfort.

(Comparative Example 2)
Air-conditioned garments were prepared in the same manner as in Example 1 except that the basis weight of the knitted fabric was 280 g / m ² and the air permeability was 10 cc / cm ^{2 / sec, and a wearing test was carried out.} As shown in Table 4 of the obtained evaluation results, the air permeability of the fabric is low, the pressure required to generate an air flow inside the clothes is high, and even if the outside air is taken in from the blower fan unit, the air flow is stagnant inside the clothes. The result was a feeling of heat and poor wearing comfort.

(Comparative Example 3)
In Comparative Example 2, the fan of the blower fan unit was a centrifugal fan with an outer diameter of 100 mm, the total weight of the blower fan unit was 185 g, and the total flow rate of the outside air taken in from the fan was 5.5 L / sec. The test was carried out. As shown in Table 4 of the obtained evaluation results, the air permeability of the fabric was low and exceeded the pressure required to generate an air flow in the clothes, so that an air flow was generated in the clothes and the subject's feeling of heat was reduced. However, the amount of air blown was large, the clothes swelled, and the fan unit was also large, resulting in a feeling of discomfort when worn.

(Comparative Example 4)
An air-conditioned garment was produced in the same manner as in Example 1 except that the basis weight of the knitted fabric was 30 g / m ² and the air permeability was 550 cc / cm ² / sec, but the fabric was too thin and the strength of the garment was low. , The wearing test could not be carried out.

(Comparative Example 5)
The front part of the polo shirt is located 20 cm above the lower part of the garment, and two openings are provided at a position 10 cm from the sewn parts on the left and right sides of the garment, and as shown in FIG. 2, the garment covers the openings. A pocket was provided on the inside of the fabric with a fabric made of a knitted fabric having the same structure as the fabric of the garment. Then, an air-conditioned garment was produced by the same method as in Example 1 except that a blower fan unit composed of a centrifugal fan having an outer diameter of 30 mm was put in the pocket of each opening and attached to the garment, and a wearing test was carried out. did. As shown in Table 4 of the obtained evaluation results, the entire back surface of the body could not be cooled, resulting in a feeling of heat, and the abdomen of the body had a fan, which resulted in inferior wearing feeling.

(Comparative Example 6)
A knitted fabric made of Kanoko tissue was produced in the same manner as in Example 1, and the obtained knitted fabric was sewn as an outer material and a lining to produce a polo shirt-like garment made of two pieces of fabric. Two openings are provided in the outer material and the lining at a position 20 cm above the lower part of the garment on the back of the polo shirt and 10 cm from the sewn parts on the left and right sides of the garment, and the openings are provided as shown in FIG. 2a. A pocket was provided on the inside of the garment so as to cover it with a fabric made of a knitted fabric having the same structure as the garment fabric. Then, a blower fan unit consisting of a centrifugal fan that blows air in a direction substantially perpendicular to a fan shaft having an outer diameter of 30 mm is attached to clothes by putting it in the pocket of each opening, and the total flow rate of the outside air taken in from the fan is set to 0. At 7 L / sec, an air-conditioned garment that blows air into the space between the body and the lining in a direction substantially parallel to the body and upward was prepared, and a wearing test was conducted. As shown in Table 4 of the obtained evaluation results, the air permeability of the fabric is high, but the airflow stays in the space between the outer material and the lining, and the pressure required to generate the airflow in the clothes increases. Even if the outside air was taken in from the blower fan unit, the airflow was stagnant in the clothes, and the feeling of heat was felt, resulting in poor wearing comfort.

(Comparative Example 7)
Two openings are provided only on the outer material at a position 20 cm above the lower part of the back of the polo shirt-shaped garment produced by the same method as in Comparative Example 6 and 10 cm from the sewn parts on the left and right sides of the garment. As shown in FIG. 2a, pockets are provided inside the outer material (between the outer material and the lining) so as to cover the opening with a fabric made of a knitted fabric having the same structure as the fabric of the garment. Then, a blower fan unit consisting of a centrifugal fan that blows air in a direction substantially perpendicular to a fan shaft having an outer diameter of 30 mm is attached to clothes by putting it in the pocket of each opening, and the total flow rate of the outside air taken in from the fan is 0.7 L. At / sec, an air-conditioned garment that blows air into the space between the outer material and the lining in a direction substantially parallel to the body and upward was prepared, and a wearing test was conducted. As shown in Table 4 of the obtained evaluation results, the airflow generated in the space between the outer material and the lining does not flow into the space between the body and the clothes, but escapes from the outer material to the outside of the clothes, and the blower fan unit. Even if the outside air was taken in from the clothes, the airflow inside the clothes was poor, and the feeling of heat was felt, resulting in poor wearing comfort.

Since the garment of the present invention suppresses the feeling of heat, the environment inside the garment can be kept comfortable, and since it is excellent in quietness and design, it can be suitably worn even in a wearing scene such as an office or a home. ..

1: Blower fan unit 2: Back view 3: Clothes hem 4: Front body
5: Sewing part (or crease)
6: Opening provided at the back
7: Blower fan unit mounting part (pocket shape)
8: Blower direction
9: Blower opening provided in the mounting part 10: Inner surface of the fabric constituting the clothes 11: Blower fan unit mounting part (rubber string shape)

Claims (5)

It is a garment made of a single piece of cloth having a breathability of 55 to 500 cc / cm ² / sec, and is characterized by having a power supply unit and a blower fan unit, and having the above blower fan unit on the back of the garment. Clothes to be. The garment according to claim 1, wherein the outer diameter of the blower fan unit is 80 mm or less. The garment according to claim 1 or 2, wherein the blower fan unit blows air in a direction substantially perpendicular to the fan axis direction. The garment according to any one of claims 1 to 3, wherein the garment is made of a fabric using at least a part of hygroscopic fibers. The garment according to claim 4, wherein the moisture absorption / desorption parameter ΔMR of the hygroscopic fiber is 2.0% or more.

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