JP2013072155A - Exothermic supporter - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a supporter including an elastic yarn, increasing temperature instantly when extending, and persistently generating heat when extending by repeating expansion and contraction of a knitted fabric.SOLUTION: This supporter is such that at least one part is arranged with a knitted fabric which comprises a nonelastic yarn and an elastic yarn and whose instant exothermic temperature is ≥1°C when extending it by 80%.

Description

  The present invention provides an exothermic supporter in which the temperature rises instantaneously when extended in a supporter containing elastic yarn.

Conventionally, as a supporter that increases the temperature when worn, such as heat-resistant clothing, a garment manufactured with a fabric mixed with moisture-absorbing heat-generating fibers such as cellulose, and heated by insensitive excretion or sweating from the human body when worn, and garment However, in these moisture-absorbing heat-generating fibers, if the moisture absorption amount of the fiber reaches saturation, no further heat is generated, and not only the heat generation time is short but also the moisture absorption amount is low. After reaching saturation, the sensation of coldness was even felt due to moisture in the fiber.
Furthermore, as heat-generating fabrics and heat-generating clothes other than moisture-absorbing heat generation, it is known that heaters such as sheet heat generation and heat-generating fibers are incorporated into clothes, but all of them generate heat by electricity, and when used as supporters It becomes a supporter that is heavier, requires electrodes, and is difficult to move.

  In this way, there is currently no support other than hygroscopic heat generation as a supporter that rises in temperature when it is worn and is easy to move, but there is a limit to hygroscopic heat generation because the fabric that absorbs heat absorbs moisture. I don't see any supporters who wear it as a permanent heat and are light and easy to move.

JP 2003-227043 A

  An object of the present invention is to provide a supporter for protecting a joint of a body containing an elastic yarn, wherein the temperature rises instantaneously when stretched and generates heat when stretched permanently even if the knitted fabric is repeatedly expanded and contracted. It is to provide a product that can be expected to have heat retention and prevent injury by warming the muscles and joints of the stretched part and the effect of burning muscles and fats.

As a result of intensive studies to achieve the above object, the present inventor has been knitted with a knitted fabric composed of an inelastic yarn and an elastic yarn, and an instantaneous heat generation temperature at 80% elongation of 1 ° C. or more. The present inventors have found that the above object can be achieved by a supporter, and have reached the present invention.
That is, the present invention is as follows.

(1) A supporter comprising a knitted fabric composed of an inelastic yarn and an elastic yarn, wherein a knitted fabric having an instantaneous heat generation temperature of 1 ° C. or higher at 80% elongation is at least partially arranged.
(2) The above (1) is characterized in that the knitted fabric contains an elastic yarn of 60 g / m ² or more and the sum of the knitted fabric weft and elongation under a load of 9.8 N is 70 to 200%. The supporter described.
(3) The supporter according to (1) or (2) above, wherein at least one elastic yarn contained in the knitted fabric is inserted and knitted.
(4) The above (1) to (1), wherein an elastic yarn of 500 to 1900 dt is inserted and knitted in the warp direction of the knitted fabric, and the meandering of the elastic yarn in the knitted fabric is 1.0 mm or less. The supporter as described in any one of 3).

  The supporter of the present invention is a cylindrical or L-shaped supporter that firmly protects the joint centering on the elbow and knee joints. If it is mounted for the purpose of improving motor function, preventing injury, and keeping warm, As a result of bending and stretching of the joints of the arms and the knitted fabric, the knitted fabric generates heat of 1 ° C. or more and is warm, and a supporter that can also be expected to have a fat burning effect is obtained.

It is a figure explaining the meandering state and meandering measuring method of the elastic yarn of the elastic knitted fabric used for the supporter of this invention.

Hereinafter, the present invention will be described in detail.
The supporter of the present invention includes a knitted fabric composed of an inelastic yarn and an elastic yarn and having an instantaneous heat generation temperature of 1 ° C. or higher when the knitted fabric is stretched 80% (hereinafter simply referred to as an instantaneous heat generating knitted fabric). May be noted) at least partially.
The instantaneous heat generation temperature in the present invention is a process in which the process of stretching the knitted fabric by 80% and then returning it to its original length is repeated once under the condition of not receiving external energy supply other than expansion and contraction. This is a value calculated from the difference from the knitted fabric temperature before the start of the test by measuring the knitted fabric temperature at the 100th 80% elongation by thermography after stretching 100 times.

  If the knitted fabric temperature at 80% elongation for the 100th time is higher than the knitted fabric temperature before the start of the test, it indicates that instantaneous heat generation has occurred, and the knitted fabric used for the supporter of the present invention has an instantaneous heat generation temperature measured by this method. It must be 1 ° C. or higher. At an instantaneous heat generation temperature of less than 1 ° C., almost no heat generation is felt and the object of the invention cannot be achieved. Therefore, the instantaneous heat generation temperature at 80% elongation is 1 ° C. or higher, preferably 1.5 ° C. or higher. The upper limit is not particularly limited as long as the instantaneous heat generation temperature is high, and the upper limit is not particularly limited as long as it does not adversely affect the human body.However, if the elastic fiber content increases excessively to increase the instantaneous heat generation temperature, the knitted fabric has high power. Since it becomes difficult to move as a supporter, the temperature is preferably 15 ° C. or lower. In addition, about the measurement of exothermic temperature, it shows concretely in an Example.

The instantaneous exothermic knitted fabric used for the supporter of the present invention preferably contains 60 g / m ² or more of elastic yarn in the knitted fabric. The more the elastic yarn is contained, the higher the exothermic temperature becomes, more preferably 65 g / m ² or more, still more preferably 70 g / m ² or more. If the elastic yarn content is too high, the weight of the knitted fabric will increase, and the knitted fabric will become high power and difficult to move as a garment, so 200 g / m ² or less is preferred.

  The instant exothermic knitted fabric used in the present invention cannot exhibit the effects of the invention only by the elastic yarn content described above, and at least one kind of elastic yarn is inserted and knitted. The object can be suitably achieved. The insertion knitting referred to in the present invention is an insertion knitting by a warp knitting machine, and a tack or welt structure by a circular knitting machine, and in any case, elastic yarn is knitted without forming a knit loop. In the case of insertion knitting with a warp knitting machine, the insertion knitting is performed by swinging between the wales of the knitted fabric to the left and right. For example, a method in which insertion knitting is performed for three courses and then only one course is knit is possible.

  Furthermore, it is preferable that at least part of an elastic yarn of 500 to 1900 dt (decitex, hereinafter using the same symbol) is included as an elastic yarn to be inserted, more preferably 600 to 1800 dt, and still more preferably. , 700 to 1700 dt of elastic yarn is included. The thicker the elastic yarn to be inserted and knitted, the more heat generation effect can be exerted when it is stretched. The heat generation effect is small if it is thinner than 500 dt, and the elastic force becomes too large if it is thicker than 1900 dt. Become a supporter. When a plurality of elastic yarns having different finenesses are inserted, it is preferable that the fineness of the elastic yarn having the larger fineness is in the above range, and the elastic yarn having the smaller fineness may be less than 500 dt. A fiber of about 30 to 160 dt is preferable.

  The instant exothermic knitted fabric used for the supporter of the present invention is preferably used in a warp knitting machine as the elastic yarn to be inserted becomes thicker, and when an elastic yarn thicker than 150 dt is used, the use of a Russell warp knitting machine is preferred.

  The fineness of the elastic yarn can be measured from the length and weight of the elastic yarn in the knitted fabric. Specifically, the elastic yarn may be extracted from the knitted fabric, or the non-elastic yarn of the knitted fabric may be dissolved to unwind the elastic yarn only as an elastic yarn, and the length and weight may be measured. However, if it is difficult to measure the length and weight of the elastic yarn by the method described above, the diameter of the elastic yarn in the knitted fabric is measured arbitrarily at 10 locations with an electron microscope or the like, and is determined from the average value. You may go. The knitted fabric observed by this method is measured without stretching the knitted fabric, and when the elastic yarn is covered with the inelastic yarn, the inelastic yarn is partially cut and removed so that it can be observed. Measure the diameter of the elastic yarn. Further, the fineness of the elastic yarn before knitting is different from the fineness of the elastic yarn after finishing, and usually the fineness after finishing is small. However, in the present invention, the fineness after finishing is preferably 500 dt or more.

Further, the effect of the invention can be most exerted if the elastic yarn on which insertion knitting is performed meanders of 1.0 mm or less, preferably 0.8 mm or less.
In a normal raschel knitted fabric with an elastic yarn inserted, in order to suppress the “laughing” of the knitted fabric due to the displacement of the elastic yarn, the amount of squeezing is often increased during heat setting. There are many knitted fabrics of 5 mm or more, but this generates a small amount of heat. In the knitted fabric of the present invention, it is necessary to make the meandering of the elastic yarn as small as possible in order to increase the calorific value. In order to set the meandering of the inserted elastic yarn to 1.0 mm or less, the swing width at the time of knitting the elastic yarn is set to 1 to 2 wales, the preset temperature at the dyeing process is lowered, the width of the knitted fabric is reduced, etc. It can be manufactured by adjusting. Note that “laughing” tends to occur when the meandering of the elastic yarn is small. Therefore, “laughing” can be prevented by adjusting the feed amount of the inelastic yarn and tightening the elastic yarn. In addition, about the measurement of the meandering of an elastic yarn, it shows concretely in an Example.

  When a plurality of elastic yarns are inserted, if any elastic yarn has the same fineness, any elastic yarn, and if an elastic yarn with different fineness is inserted and knitted, the elastic yarn has a high fineness. Is preferably 1.0 mm or less. At this time, if the other elastic yarn is meandering 1.3 mm or more, preferably 1.5 mm or more, it is an elastic knitted fabric having good elasticity in the warp direction and the weft direction after securing the heat generation amount, More preferred.

  As a result of further investigation on the heat generation effect of the instantaneous exothermic knitted fabric used in the supporter of the present invention, the influence of the knitted fabric elongation is also large, that is, the sum of the knitted fabric weft elongation under a 9.8 N load is 70 to 200. %, And when the sum of the knitted fabric weft and elongation is less than 70% under a load of 9.8 N, the stretchability is poor, and unpleasant clothing that feels tense when worn. When the knitted fabric does not generate enough heat. The elongation of the knitted fabric can be adjusted by adjusting the density of the knitted fabric, selecting the knitted structure, and adjusting the fineness of the elastic yarn. In addition, the knitted fabric elongation needs to be 30% or more in one direction of the knitted fabric under a load of 9.8 N, and is not particularly limited at the time of manufacturing the supporter. If the supporter is manufactured according to the direction in which the knitted fabric is stretched well when the supporter is worn, the supporter can easily exhibit a heat generation effect when stretched. In addition, the elongation measurement of the knitted fabric is performed by the method described in the examples.

  Furthermore, the elongation recovery rate of the instantaneous exothermic knitted fabric is also important, and the elongation recovery rate is preferably 85% or more in both the warp direction and the weft direction. An elongation recovery rate of less than 85% is not preferable because it causes a decrease in the amount of heat generated during repeated expansion and contraction. In addition, the measuring method of elongation and an elongation recovery rate is shown concretely in an Example.

The instantaneous exothermic knitted fabric used for the supporter of the present invention is not particularly limited, but the elongation ratio in the warp direction and the weft direction is preferably 0.6 to 2.5, and the knitted fabric having this elongation ratio is desirable. When the supporter is sewed, there is a feeling of moderate tightening and the joint can be bent and stretched easily. When the elongation ratio is less than 0.6, there is a feeling of tension when the body is bent and stretched, and it becomes a supporter with poor wearing feeling. When the elongation ratio is larger than 2.5, it is not preferable because wrinkles are generated at the time of bending and stretching of the joint, and the knitted fabric is loosened. Therefore, the elongation ratio between the warp direction and the weft direction of the knitted fabric is preferably 0.6 to 2.5, more preferably 0.8 to 2.3. The elongation ratio referred to in the present invention is determined by the following equation from the elongation measured in the warp direction and the weft direction.
Elongation ratio = (elongation in warp direction) / (elongation in latitude direction)

  Any method can be used for producing a knitted fabric having these elongations, a method of knit knitting elastic yarn over the entire surface of the knitted fabric, an insertion knitting with a plurality of types of elastic yarns, or a method of combining insertion knitting properties and knitting. When dyeing a knitted fabric containing elastic yarn, it can be manufactured by a chasing set or a width setting set at the time of heat setting.

  The elastic yarn used for the instant exothermic knitted fabric used in the supporter of the present invention is a polyurethane-based or polyether ester-based elastic yarn. For example, a polyurethane-based elastic yarn can be used by dry spinning or melt spinning. The spinning method is not particularly limited. It is preferable that the elastic yarn has a breaking elongation of about 400% to 1000%, is excellent in stretchability, and does not impair the stretchability around a normal processing temperature of 180 ° C. in the presetting process during dyeing. In addition, an elastic yarn provided with functionality such as high setting property, antibacterial property, moisture absorption and water absorption by adding a special polymer or powder to the elastic yarn can also be used.

  Regarding the fineness of the elastic yarn, when forming a knit loop, fibers of about 30 to 170 dt can be used. In the insertion knitting, the thick elastic yarn is 500 to 1900 dt, and the thin elastic yarn is not particularly limited. These elastic yarns can be used. Further, a covering yarn obtained by winding an inelastic yarn around an elastic yarn, a twisted yarn, a mixed yarn obtained by mixing an inelastic yarn and an elastic yarn by air injection, and the like can also be used. Of course, the use of natural rubber is also possible.

  Furthermore, the instantaneous exothermic knitted fabric used in the supporter of the present invention can contain an inorganic substance in the elastic yarn, and can be made into a knitted fabric that takes into consideration the performance of the contained inorganic substance. When contained, the heat generated by the elastic knitted fabric is stored in titanium oxide, and heat retention due to the far-infrared effect can be imparted. As for the method of containing an inorganic substance, the method of spinning an elastic yarn containing an inorganic substance in a spinning stock solution of elastic yarn can be most easily contained. The inorganic substance referred to in the present invention is ceramics such as titanium oxide, inorganic substances such as carbon and carbon black, and inorganic compounds, and is preferably in a fine powder form so as not to hinder spinning of elastic yarn. These inorganic substances are preferably contained in the elastic yarn in an amount of 1 to 10% by weight. By containing the inorganic substance, the heat retention effect can be more effectively exhibited when the elastic knitted fabric generates heat. In addition, if there is little inorganic substance, the heat retention effect is small, and if it is too much, the yarn may break during spinning or stretching, so the content is preferably 1 to 10% by weight, more preferably 2 to 5% by weight. .

  Examples of the inelastic yarn used in the present invention include polyester fibers such as polyethylene terephthalate and polytrimethylene terephthalate, polyamide fibers, polyolefin fibers such as polypropylene, and cellulose fibers such as cupra, rayon, cotton, and bamboo fibers. All kinds of fibers such as animal fibers such as wool can be used. Also, these bright yarns, semi-dal yarns, full-dal yarns and the like can be used arbitrarily, and fibers having an arbitrary cross-sectional shape such as a round shape, an elliptical shape, a W shape, a saddle shape, and a hollow fiber can be used. . Further, the form of the fiber is not particularly limited, and a crimped yarn such as an original yarn and false twist can be used. Further, a long fiber, a spun yarn, two or more types of fibers are twisted, covered, air mixed fiber, etc. It is also possible to use as a composite yarn mixed by the above. Furthermore, it is possible to mix two or more types of fibers on a knitting machine instead of mixing with fibers, and in a warp knitting machine, two or more types of fibers may be prepared and knitted corresponding to each. .

  Regarding the thickness of the fiber, it is possible to use a fiber of about 40 to 220 dt, and it is preferable to use a fiber of about 50 to 170 dt in view of the burst strength and thickness of the knitted fabric. In addition, when using cotton or wool, the thickness of the fiber used may be determined by a conversion formula.

  The inelastic yarn used in the present invention, particularly polyester fiber, polyamide fiber, cellulosic fiber, and the like preferably contain 0.3 to 5% by weight of an inorganic substance, and by containing an inorganic substance, When the elastic knitted fabric generates heat, the heat retention effect can be more effectively exhibited. If the inorganic substance is small, the heat retention effect is small, and if it is too large, the yarn may break during spinning or stretching. Therefore, the content is preferably 0.5 to 5% by weight, and more preferably 0.4 to 3%. It is contained by weight%.

  In the instant exothermic knitted fabric used for the supporter of the present invention, if a material that absorbs moisture such as cellulose is used for the non-elastic yarn, it generates heat when absorbed and also generates heat when exercised. It is possible to exert the effect of. Furthermore, the use of spun yarn and raising can make it difficult for heat generated to escape and enhance the heat retaining effect.

  The instantaneous exothermic knitted fabric used for the supporter of the present invention can be produced by a warp knitting machine or a circular knitting machine, and the use of a warp knitting machine is particularly preferable. As an example of a method for producing a knitted fabric with a warp knitting machine, using a Russell knitting machine, a thick elastic yarn is used as an insertion structure with a small swing width on a back heel, and a thin elastic yarn is used as an insertion structure with a large swing width on a middle heel The knitted fabric that is manufactured by knitting with non-elastic yarn on the front collar has a thick elastic yarn inserted almost linearly and a thin elastic yarn that connects the weft direction. Can be produced using a single warp knitting machine or a double warp knitting machine. As for the gauge of the knitting machine, a knitting machine of any gauge can be used, but it is preferable to use a knitting machine of about 18 to 36 gauge. If the gauge is rough, the aesthetics of the knitted fabric is not good. The higher the gauge, the poorer the stretchability and the less effective the effects of the present invention.

The dyeing finish method of the instant exothermic knitted fabric used for the supporter of the present invention can use the usual dyeing finishing process, and the dyeing conditions according to the fiber material to be used are also used. A processing agent that improves water absorption and flexibility can be used as desired.
The supporter of the present invention only needs to be provided with at least a part of the instantaneous exothermic knitted fabric described above, and the entire supporter may be composed of the instantaneous exothermic knitted fabric. A plurality of instantaneous exothermic knitted fabrics may be combined, or may be used in combination with a knitted fabric that does not have instantaneous exothermic properties. For example, when it is difficult to stretch when worn only with a low extensibility instantaneous exothermic knitted fabric, it can be combined with a high extensibility instantaneous exothermic knitted fabric or a knitted fabric with no high extensibility. Wearability can be improved. It is preferable that an instantaneous exothermic knitted fabric is disposed in a portion of the supporter that expands and contracts when worn, and 50 wt% or more of the supporter is preferably an instantaneous exothermic knitted fabric. More preferably, it is 70 wt% or more, More preferably, it is 90 wt% or more.

  EXAMPLES Hereinafter, although an Example demonstrates this invention in detail, this invention is not limited only to these Examples. In addition, the knitted fabric used for the expansion-contraction supporter of this invention in an Example and the evaluation of the sewing expansion-contraction supporter were performed with the following method. In addition, when multiple knitted fabrics are used for the supporter, measure each knitted fabric, but if the sample size described in the following method cannot be secured, change the sample size within the measurable range. Also good.

(1) Instantaneous exothermic temperature The instantaneous exothermic temperature was measured by using a demacher tester, repeating elongation and relaxation (returning), and then measuring the calorific value by thermography.
Repeating expansion and contraction machine: Dematcher testing machine (manufactured by Daiei Scientific Instruments)
Sample size: 10cm in length (excluding gripping part), 6cm in width
Measurement environment: Measured in a constant temperature and humidity condition of a temperature of 20 ° C. and a humidity of 65% RH without receiving external energy supply other than expansion and contraction.
Elongation: 80% in the length direction
Repeated expansion / contraction cycle: 1 time / second Exothermic temperature measurement: Sample surface temperature at 80% elongation at the 100th repetition elongation was measured by thermography. The emissivity of the thermography is set to 0.9.
Exothermic temperature evaluation: The maximum surface temperature of the sample to be measured is read, and the number of times the temperature rises compared to before the expansion / contraction is defined as the exothermic temperature.

(2) Elastic yarn content The elastic yarn content (g / m ² ) in the knitted fabric is obtained by the following method and rounded to one decimal place. The inelastic yarn in the knitted fabric is removed by dissolution or the like, and the weight of only the elastic yarn is measured and converted to the weight per unit area. If it is difficult to remove the non-elastic yarn, the elastic yarn is removed from the knitted fabric after the weight measurement by dissolving, etc., and the weight of only the non-elastic yarn is measured. To do.

(3) Sum of knitted fabric weft elongation The knitted fabric elongation is measured by the following method.
Sample size: length 100 mm (excluding gripping part), width 25 mm
Tensile tester: Tensilon tensile tester Initial load: 0.1N
Tensile speed: 300 mm / min Tensile length: Elongates to 9.8 N load.
Measurement: Elongation under the above conditions, the respective elongations in the warp direction and the weft direction at a load of 9.8 N are obtained, and the sum of the warp elongation and the weft elongation is taken as the sum of the knitted fabric weft elongation.

(4) Extension recovery rate The extension recovery rate is measured by the following method.
Sample size: length 100 mm (excluding gripping part), width 25 mm
Tensile tester: Tensilon tensile tester Initial load: 0.1N
Tensile speed: 300 mm / min Tensile length: 80 mm (80% elongation)
Tensile times: Repeated expansion and contraction three times.
Measurement: The elongation recovery rate at the third repetitive expansion / contraction of the knitted fabric under the above conditions is obtained by the following equation.
Elongation recovery rate (%) = [(180−a) / 80] × 100
a: Sample length when the stress at the third repetition of elongation becomes zero (100 mm + residual strain)

(5) The meandering of the inserted elastic yarn The meandering of the elastic yarn inserted into the knitted fabric is measured by the following method.
Remove the non-elastic yarn of the knitted fabric by melting and take out only the elastic yarn, or pull out the elastic yarn from the knitted fabric and observe with a microscope, and check the height difference between the concave and convex portions on the side of the meandering elastic yarn Measure and calculate by rounding up the second digit of the decimal point of the average value of 10 portions with as high a height difference as possible. In many cases, the elastic yarn meanders to the left and right. In this case, the measurement may be performed on either the left or right side, but the height difference portion of the large unevenness is measured. In addition, a concave portion of a trace of the inelastic yarn in the elastic yarn is also measured as a concave portion. More specifically, with reference to FIG. 1, the elastic yarn 1 meandering and having a convex portion 2 and a concave portion 3 is photographed, and a tangent line 4 connecting the most valley-like portions of the concave portion. The distance 6 between the tangent 5 and the tangent 5 connecting the most apex portions of the convex portions is measured, and this is defined as meandering of the elastic yarn.

(6) Wear feeling The supporters obtained in the examples were worn in an environmental test room at 10 ° C., and the lower body supporters such as legs were evaluated for warmth after walking for 10 minutes at a speed of 4 km / min on a treadmill. The upper body supporters such as the arms were subjected to bending and stretching of the joint for 10 minutes, and the warmth and ease of movement were evaluated according to the following criteria.
○: The entire supporter is warm and easy to move around the joint.
(Triangle | delta): The part which repeats expansion / contraction of a joint part is warm, and it is easy to move.
×: I do not feel warmth. Or it is difficult to move and uncomfortable.

[Example 1]
Using a 20 gauge (inch) Russell warp knitting machine, elastic yarn 940dt (trade name Roika CR: manufactured by Asahi Kasei Fibers Co., Ltd.) for the back bag, elastic yarn 78dt (trade name Roica SF: Asahi Kasei Fibers Co., Ltd.) for the middle bag )), A nylon yarn 56dt / 34f was prepared on the front ridge and knitted with the following structure.
Front 筬 46/42/24/20/24/42
Middle coffee 00/22/00/66/44/66
Back bag 00/22/00/22/00/22
The knitted fabric that had been knitted was relaxed and scoured with a continuous scouring machine, then pre-set at 185 ° C. for 1 minute, and dyed with nylon by a liquid dyeing machine. After dyeing, the fabric was padded with a soft finish and finished with a finish at 160 ° C. for 1 minute to obtain an elastic knitted fabric.
The performance of the obtained knitted fabric and the sewn supporter was evaluated, and the results are shown in Table 1.

[Examples 2-5 and Comparative Examples 1-2]
In Example 1, the fineness of the thick elastic yarn and the thin elastic yarn to be inserted is changed, and the runner at the time of knitting, the swing width of the thin elastic yarn, the amount of knitting fabric driven at the time of dyeing and the knitted fabric Various knitted fabrics were manufactured by changing the dyeing processing conditions such as the tentering set conditions of the fabrics, and the supporters were sewn using them.
The performance of the obtained knitted fabric and the sewn supporter was evaluated, and the results are shown in Table 1.

[Example 6]
Using a 28-gauge tricot warp knitting machine, elastic yarn 78dt (trade name Roika SF: manufactured by Asahi Kasei Fibers Co., Ltd.) on the back bag, elastic yarn 78dt (trade name Roika SF: product manufactured by Asahi Kasei Fibers Co., Ltd.) on the middle bag A nylon yarn 78dt / 48f was prepared on the front ridge and knitted with the following structure.
Front 筬 10/23
Middle rice cake 12/10
Back bag 10/12
The knitted fabric that had been knitted was relaxed and scoured with a continuous scouring machine, then pre-set at 185 ° C. for 1 minute, and dyed with nylon by a liquid dyeing machine. After dyeing, the fabric was padded with a soft finish and finished with a finish at 160 ° C. for 1 minute to obtain an elastic knitted fabric.
The performance of the obtained knitted fabric and the sewn supporter was evaluated, and the results are shown in Table 1. The elastic knitted fabric of the present invention has an instantaneous exothermic temperature of 1 ° C. or more and becomes a target knitted fabric. It was.

  The supporter of the present invention is a supporter that instantaneously generates heat when stretched, and it is possible to obtain a supporter that can be expected to have heat retention and prevent injury by warming the muscles and joints of the stretched part and the effect of burning muscles and fats. It can also be used for corsets that fix joints, muscles or fats.

DESCRIPTION OF SYMBOLS 1 Elastic thread 2 The part which is the top of the convex part of the meandering elastic thread 3 The part which is the valley of the concave part of the meandering elastic thread 4 The tangent of the valley part of the concave part 5 The convex part Tangent line of the top part 6 Distance between the tangent line of the convex part top part and the tangent line of the concave valley part = meandering amount

Claims (4)

  A supporter comprising a knitted fabric comprising inelastic yarns and elastic yarns, wherein a knitted fabric having an instantaneous heat generation temperature of 1 ° C or higher at 80% elongation is at least partially arranged. The supporter according to claim 1, wherein the knitted fabric contains 60 g / m ² or more of an elastic yarn, and the sum of the knitted fabric weft and elongation under a load of 9.8 N is 70 to 200%.   The supporter according to claim 1 or 2, wherein at least one kind of elastic yarn contained in the knitted fabric is inserted and knitted.   The elastic yarn of 500 to 1900 dt is inserted and knitted in the warp direction of the knitted fabric, and the meandering of the elastic yarn in the knitted fabric is 1.0 mm or less. The supporter according to item.

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