JP2017082361A - Clothing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide clothing which can detect biological information with high accuracy and is also excellent in wearing comfortableness.SOLUTION: The clothing is acquired which uses a fabric whose stretchability is 60 to 100% in at least one of a horizontal direction and a vertical direction, and includes a biological information detection sensor.SELECTED DRAWING: None

Description

  The present invention relates to a garment including a biometric information detection sensor, capable of detecting biometric information with high accuracy, and excellent in wear comfort.

In recent years, clothing comprising a biological information detection sensor has been proposed (see, for example, Patent Document 1 and Patent Document 2).
However, there have not been many proposals so far for clothing that can detect biological information with high accuracy and is excellent in wearing comfort.

JP 2014-74258 A JP2015-83728A

  The present invention has been made in view of the above background, and an object of the present invention is to provide a garment capable of detecting biological information with high accuracy and having excellent wearing comfort.

  As a result of intensive studies to achieve the above-mentioned problems, the inventor obtained a fabric having a stretch property of at least one of the horizontal direction and the vertical direction of 60 to 100%, and then used the biological information detection sensor with the fabric. It has been found that, when the provided clothing is configured, the change in the adhesion between the sensor and the body is small even when the body is moved, the biological information can be detected with high accuracy, and the clothing excellent in wearing comfort can be obtained. The present invention has been completed through intensive studies.

Thus, according to the present invention, “a garment comprising a living body information detection sensor, wherein the garment includes a fabric having a stretchability of at least one of the horizontal direction and the vertical direction of 60 to 100%. Is provided.
In that case, it is preferable that the said fabric contains the crimped fiber which has a torque of 30 T / m or less. Further, a composite yarn including a false twist crimped yarn having a torque in the S direction and a false twist crimped yarn having a torque in the Z direction is preferable. Moreover, it is preferable that the composite yarn is an entangled yarn subjected to interlace processing. Moreover, it is preferable that the torque of the composite yarn is non-torque. In the crimped fiber, the single fiber fineness is preferably 2.3 dtex or less. Moreover, it is preferable that the said crimped fiber consists of polyester fibers. Moreover, it is preferable that clothing contains a knitted fabric and this knitted fabric contains the said crimped fiber. At that time, in the knitted fabric, the knitted fabric density is preferably 40 to 100 / 2.54 cm in the number of courses and 30 to 60 / 2.54 cm in the wales. The knitted fabric preferably has a weft knitted structure. Moreover, it is preferable that the knitted fabric is subjected to water absorption processing. Moreover, it is preferable that the fabric weight of the said knitted fabric exists in the range of 70-250 g / m < ² >. The biological information detection sensor is preferably a heart rate sensor.

  ADVANTAGE OF THE INVENTION According to this invention, the biological information which can detect biometric information accurately and was excellent in wearing comfort is obtained.

Hereinafter, embodiments of the present invention will be described in detail. First, the present invention includes a garment including a biological information notification sensor, and includes a fabric having a stretch property of 60% to 100% in at least one of a horizontal direction and a vertical direction.
Here, the fabric preferably includes crimped fibers having a torque of 30 T / m or less. A crimped fiber having a torque of 30 T / m or less (hereinafter sometimes simply referred to as “crimped fiber”) is a composite composed of two or more types of false twisted crimped yarns that differ from each other in production conditions or fineness. A yarn is preferred.

  Torque is reduced by setting the false twist in the first heater zone to the false twist crimped yarn, so-called one heater false twist crimped yarn, and further introducing the yarn into the second heater zone and subjecting it to relaxation heat treatment. In addition, there is a so-called second heater false twist crimped yarn. Further, depending on the direction of twisting, there are a false twist crimped yarn having a torque in the S direction and a false twist crimped yarn having a torque in the Z direction. In the present invention, these false twist crimped yarns can be used. In particular, it is preferable to form a composite yarn with a false twist crimped yarn having a torque in the S direction and a false twist crimped yarn having a torque in the Z direction because a low torque composite yarn can be obtained.

Such a composite yarn can be produced, for example, by the following method. That is, a one-heater false twisted crimped yarn is obtained by twisting the yarn with a twisting device via a first roller and a heat treatment heater having a set temperature of 90 to 220 ° C. (more preferably 100 to 190 ° C.). It may be obtained, or a second heater false twisted crimped yarn may be obtained by introducing it into the second heater zone and subjecting it to a relaxation heat treatment if necessary. The draw ratio during false twisting is preferably in the range of 0.8 to 1.5, and the false twist number is the formula of false twist number (T / m) = (32500 / (Dtex) ^1/2 ) × α. α = 0.5 to 1.5 is preferable, and usually 0.8 to 1.2. However, Dtex is the total fineness of the yarn. As the twisting device to be used, a disk-type or belt-type friction type twisting device is suitable because it is easy to thread and there is little yarn breakage, but a pin-type twisting device may also be used. Further, depending on the direction of twisting, the torque of the false twist crimped yarn can be selected from the S direction or the Z direction. Next, the composite yarn is obtained by combining two or more types of false twist crimped yarn.

  It is preferable that the composite yarn is entangled by interlace processing. The number of entanglements (interlaces) is preferably in the range of 30 to 90 / m in order not to impair the soft texture and stretchability. If the number is greater than 90 / m, the soft texture and stretchability may be impaired. On the other hand, when the number is less than 30 / m, the converging property of the composite yarn becomes insufficient, and the knitting property may be impaired. In addition, the entanglement process (interlace process) may be performed using a normal interlace nozzle.

The torque of the composite yarn thus obtained is preferably 30 T / m or less (preferably 18 T / m or less, more preferably 10 T / m or less, particularly preferably non-torque (0 T / m)). The torque is preferably as small as possible, and most preferably non-torque (0 T / m). In order to achieve non-torque in this way, when the false twisted crimped yarn having the torque in the S direction and the false twisted crimped yarn in the Z direction are combined, they have the same torque except that the direction of the torque is different. Two types of false twist crimped yarn may be used.
In the composite yarn (crimped fiber), the crimp rate is preferably 2% or more (more preferably 10 to 20%). If the crimp ratio is less than 2%, there is a possibility that sufficient soft texture and stretchability cannot be obtained.

  The composite yarn (crimped fibers) preferably has a single fiber fineness of 2.3 dtex or less (preferably 0.00002 to 2.0 dtex, particularly preferably 0.1 to 2.0 dtex). The smaller the fiber yarn fineness, the better, and the single yarn fiber diameter called nanofiber may be 1000 nm or less. When the single fiber fineness is larger than 2.3 dtex, the water absorption is lowered, and there is a possibility that the rate of change in air permeability when wet is lowered. The total fineness of the composite yarn is preferably in the range of 33 to 220 dtex. Furthermore, the number of filaments of the composite yarn is preferably in the range of 50 to 300 (more preferably 100 to 300).

  In addition, the single yarn cross-sectional shape of the composite yarn (crimped fiber) may be a normal round cross-section, or may be an irregular cross-sectional shape other than the round cross-section. Examples of such irregular cross-sectional shapes include triangles, squares, crosses, flats, flats with constrictions, H-types, and W-types. At that time, the cross-sectional flatness expressed by the ratio B / C1 of the flat cross-sectional shape with the length B in the longitudinal centerline direction to the maximum width C1 in the direction perpendicular to the longitudinal centerline direction is 2 It is preferable in terms of the softness of the fabric to be in the range of ˜6 (more preferably 3.1 to 5.0). In addition, the water absorption of the fabric is such that the ratio C1 / C2 of the maximum value C1 of the width to the minimum value C2 is in the range of 1.05 to 4.00 (more preferably 1.1 to 1.5). From the viewpoint of sex.

  The fibers constituting the crimped fibers are not particularly limited, and polyester fibers, acrylic fibers, nylon fibers, rayon fibers, acetate fibers, and natural fibers such as cotton, wool, silk, and composites thereof are used. Is possible. Polyester fibers are particularly preferable. As such polyester, terephthalic acid is the main acid component, and alkylene glycol having 2 to 6 carbon atoms, that is, at least one selected from the group consisting of ethylene glycol, trimethylene glycol, tetramethylene glycol, pentamethylene glycol and hexamethylene glycol. Polyesters with seeds as the main glycol component are preferred. Of these, polyester (polyethylene terephthalate) containing ethylene glycol as the main glycol component or polyester (polytrimethylene terephthalate) containing trimethylene glycol as the main glycol component is particularly preferable.

  Such a polyester may have a small amount (usually 30 mol% or less) of a copolymer component as required. In this case, examples of the bifunctional carboxylic acid other than terephthalic acid used include isophthalic acid, naphthalene dicarboxylic acid, diphenyldicarboxylic acid, diphenoxyethanedicarboxylic acid, β-hydroxyethoxybenzoic acid, p-oxybenzoic acid, 5 -Aromatic, aliphatic, and alicyclic bifunctional carboxylic acids such as sodium sulfoisophthalic acid, adipic acid, sebacic acid, and 1,4-cyclohexanedicarboxylic acid. Examples of the diol compound other than the glycol include aliphatic, alicyclic and aromatic diol compounds such as cyclohexane-1,4-dimethanol, neopentyl glycol, bisphenol A and bisphenol S, and polyoxyalkylene glycol. Can give.

  The polyester may be synthesized by any method. For example, in the case of polyethylene terephthalate, terephthalic acid and ethylene glycol are directly esterified, or a lower alkyl ester of terephthalic acid such as dimethyl terephthalate is transesterified with ethylene glycol, or terephthalic acid and ethylene oxide are used. And the first stage reaction to produce a glycol ester of terephthalic acid and / or its low polymer, and the first stage reaction product is heated under reduced pressure until the desired degree of polymerization is reached. It may be produced by a second stage reaction for condensation reaction. The polyester is a material-recycled or chemical-recycled polyester, or a catalyst containing a specific phosphorus compound and a titanium compound as described in JP-A-2004-270097 and JP-A-2004-212268. Polyester obtained by using may be used. Further, it may be a biodegradable polyester such as polylactic acid or stereocomplex polylactic acid.

  When the ultraviolet absorbent is contained in the polyester in an amount of 0.1% by weight or more (preferably 0.1 to 5.0% by weight) relative to the weight of the polyester, it is preferable because ultraviolet shielding is added to the fabric. Examples of such UV absorbers include benzoxazine-based organic UV absorbers, benzophenone-based organic UV absorbers, benzotriazole-based organic UV absorbers, and salicylic acid-based organic UV absorbers. Of these, benzoxazine-based organic ultraviolet absorbers are particularly preferred because they do not decompose at the spinning stage.

  Suitable examples of such benzoxazine-based organic ultraviolet absorbers are those disclosed in JP-A-62-1744. That is, 2-methyl-3,1-benzoxazin-4-one, 2-butyl-3,1-benzoxazin-4-one, 2-phenyl-3,1-benzoxazin-4-one, 2,2 '-Ethylenebis (3,1-benzoxazin-4-one), 2,2'-tetramethylenebis (3,1-benzoxazin-4-one), 2,2'-p-phenylenebis (3 1-benzoxazin-4-one), 1,3,5-tri (3,1-benzoxazin-4-one-2-yl) benzene, 1,3,5-tri (3,1-benzoxazine- 4-on-2-yl) naphthalene and the like.

Further, when the matting agent (titanium dioxide) is contained in the polyester in an amount of 0.2% by weight or more (preferably 0.3 to 2.0% by weight) relative to the weight of the polyester, it is preferable because the cloth has anti-permeability. .
In addition, the polyester may contain fine pore forming agents (organic sulfonic acid metal salts), anti-coloring agents, heat stabilizers, flame retardants (antimony trioxide), fluorescent whitening agents, coloring pigments, antistatic agents, if necessary. One or more of an agent (metal sulfonate), a hygroscopic agent (polyoxyalkylene glycol), an antibacterial agent, and other inorganic particles may be included.

  In the garment of the present invention, the garment preferably includes a fabric, and the fabric preferably includes the crimped fiber. It is important that the stretch property of at least one of the horizontal direction and the vertical direction of the fabric is 60 to 100% (preferably 70 to 100%, more preferably 80 to 100%). If the stretchability is smaller than 60% in both the horizontal direction and the vertical direction, when the body is moved, the change in the adhesion between the sensor and the body becomes large, and the detection accuracy of the biological information may be lowered.

  In that case, the structure of the fabric is not particularly limited, and may be a knitted fabric, a woven fabric, or a nonwoven fabric. For example, woven fabrics having a woven structure such as plain weave, twill weave, satin, knitted fabrics having a knitted structure such as tengu, smooth, milling, kanoko, knitting yarn, denby, half, and non-woven fabric are preferably exemplified. It is not limited to. The number of layers may be a single layer or a multilayer of two or more layers. Of these, a knitted fabric is preferable. In particular, a knitted fabric having a weft knitted (round knitted) structure is preferable.

At that time, in the knitted fabric, the knitted fabric density is preferably 40 to 100 / 2.54 cm in the number of courses and 30 to 60 / 2.54 cm in the wales. Moreover, it is preferable that the knitted fabric is subjected to water absorption processing. By subjecting the fabric to water absorption, the sweat-absorbing property of the garment containing the fabric is improved, and excellent wearing comfort is obtained. Moreover, it is preferable that the fabric weight of the said knitted fabric exists in the range of 70-250 g / m < ² >. If the basis weight is less than 70 g / m ² , the water absorption may be lowered. On the other hand, if the basis weight is larger than 250 g / m ² , the weight of the garment becomes heavy and the wearing comfort may be reduced.

The garment of the present invention can be obtained by knitting and knitting cloth using the crimped fibers according to a conventional method, sewing the garment using the cloth, and then attaching a biological information detection sensor.
Here, the fabric may contain fibers other than the crimped fibers. In addition, various functions for imparting functions such as dyeing, raising, ultraviolet shielding or antibacterial agents, deodorants, insect repellents, phosphorescent agents, retroreflective agents, negative ion generators, water repellents, and the like to the fabrics. Processing may be additionally applied.

Examples of the biological information detection sensor include a heart rate sensor, a temperature sensor, a humidity sensor, a blood flow sensor, and a respiration sensor.
Further, data obtained by the sensor may be analyzed and used as an evaluation index for fatigue, emotion, concentration, sleep, and the like. Such data may be used as a judgment standard in the medical field when judgment is necessary in sports competitions, etc., or watching.

  Also, a composite product may be developed by combining data obtained by the sensor and other electronic terminals. Complex services include services that can make announcements in secondary media such as light and sound in response to data obtained from sensors, and other vital data (human body motion, blood pressure, breathing, body temperature, skin And services to be used by investigating the correlation with drying.

  Here, the IT service may be implemented using data obtained by the sensor. Examples of the IT service include a service for buying and selling the data and providing an application developed using the data. In addition, the service may be used for a service that is monitored at a hospital, a nursing facility, on-site work, or the like, and may be used for support that can provide the service from a remote location.

Since the garment of the present invention includes the fabric, the garment has a small change in adhesion between the sensor and the body even when the body is moved, can detect biological information with high accuracy, and has excellent wear comfort. In particular, when a crimped fiber having a torque of 30 T / m or less is included, the fabric surface is flat and has water absorption, and as a result, biometric information can be detected with higher accuracy and comfortable to wear. It becomes clothing excellent in nature.
Such clothing includes sports clothing, men's clothing, women's clothing, outerwear, innerwear, nightclothes, vests, stomachbands, hats, gloves, socks and the like.

  EXAMPLES Hereinafter, although an Example is given and this invention is demonstrated in detail, this invention is not limited at all by these. In addition, each physical property in an Example is measured with the following method.

(1) Torque A sample (crimped yarn) of about 70 cm is stretched horizontally, an initial load of 0.18 mN × display tex (2 mg / de) is hung at the center, and both ends are aligned. The yarn begins to rotate due to the residual torque, but keeps the initial load until the initial load stops to obtain a twisted yarn. The twisted yarn having a length of 25 cm is measured with a tester under a load of 17.64 mN × display tex (0.2 g / de). The obtained twist number (T / 25 cm) is quadrupled to obtain the torque (T / m).

(2) Degree of interlacing Take the length of 1m under the load of 8.82mN x display tex (0.1g / de) for the entangled yarn, read the number of knots after 24 hours of shrinkage at room temperature , Pieces / m.

(3) Crimp rate The test yarn was wound around a measuring machine having a circumference of 1.125 m to prepare a skein with a dryness of 3333 dtex. The skein is suspended from a hanging nail of the scale plate, an initial load of 6 g is applied to the lower part thereof, and a length L0 of the skein when a load of 600 g is further applied is measured. Immediately thereafter, the load is removed from the skein, the scale plate is removed from the hanging nail, and the skein is immersed in boiling water for 30 minutes to develop crimps. The skein after the boiling water treatment is taken out from the boiling water, the moisture contained in the skein is absorbed and removed by a filter paper, and air-dried at room temperature for 24 hours. The air-dried skein is hung on a hanging nail of the scale plate, a load of 600 g is applied to the lower part, the skein length L1a is measured after 1 minute, the load is removed from the skein, and the skein after 1 minute. The length L2a is measured. The crimp rate (CP) of the test filament yarn is calculated by the following formula.
CP (%) = ((L1a−L2a) / L0) × 100

(4) Stretchability and stretch recovery properties Two test pieces having a width of 5 cm and a length of 20 cm are collected from the fabric in either the horizontal direction or the vertical direction to obtain test pieces. Using a constant speed extension type tensile tester with a self-recording device, an initial load of 196.1 mN (20 gf) is applied to the test piece, and a constant load of 14.7 N (1.5 kgf) at a gripping interval of 10 cm and a tensile speed of 30 cm / min. Stretching up to 1%, calculate the stretch rate, that is, stretchability (%) by rounding off to one decimal place.
Subsequently, it is left for 1 minute and then returned to its original position at the same speed. After standing for 3 minutes, the residual elongation (up to 0.01 cm) is measured with a scale. From the drawn load-elongation curve, the elongation recovery rate, that is, the stretch recovery property (%) is calculated by rounding off one decimal place.
E (%) = ((L−L1) / L) × 100
Here, E: Elongation recovery rate, L = constant elongation (mm), and L1 = residual elongation (mm).
The above operation is repeated three times for the same test piece, and the operation is performed for each of the two test pieces under each condition. About stretch property and stretch recovery property, the average value of the measured value of a total of 6 points | pieces is calculated.

(5) Texture Based on the sensory evaluation of three testers, the texture is evaluated in four levels: “especially soft”, “soft”, “normal”, and “hard”.

(6) Ultraviolet shielding rate The ultraviolet shielding rate in the wavelength range of 280 to 400 nm is calculated with a spectrophotometer MPC-3100 manufactured by Shimadzu Corporation.

(7) Visible light shielding rate As a substitute characteristic of permeation resistance, a visible light shielding rate in a wavelength range of 400 to 700 nm is calculated with a spectrophotometer MPC-3100 manufactured by Shimadzu Corporation.

(8) Content of matting agent Calculated by the following formula.
Matting agent content (%) = Massing agent mass (gr) to be added / Polymer mass before adding matting agent (gr) × 100

(9) Heart rate standard deviation
Two minutes after wearing a garment equipped with a heart rate sensor as a biological information detection sensor, raising both hands straight up while sitting quietly on the chair, and slowly lowering the hand and placing it on the knee Subsequently, the operation of recording the heart rate (bpm) displayed first was continued four times, and the standard deviation value (bpm) was calculated from the heart rate values. It can be said that the smaller the standard deviation value, the more accurately the biological information can be detected.

[Example 1]
Using ordinary polyethylene terephthalate (matting agent content: 0.3% by weight), melt spinning at 280 ° C. from a normal spinning machine, taking up at a speed of 2800 m / min, winding without drawing, and semi-drawing A polyester yarn of 145 dtex / 72 fil (single yarn fiber cross-sectional shape: round cross section) was obtained.
Next, using the polyester yarn, simultaneous drawing false twist crimping is performed under the conditions of a draw ratio of 1.6 times, a false twist number of 2500 T / m (S direction), a heater temperature of 180 ° C., and a yarn speed of 350 m / min. It was.
Further, using the polyester yarn, simultaneous drawing false twist crimping was performed under the conditions of a draw ratio of 1.6 times, a false twist number of 2500 T / m (Z direction), a heater temperature of 180 ° C., and a yarn speed of 350 m / min. .
Subsequently, the false twisted crimped yarn having the torque in the S direction and the false twisted crimped yarn having the torque in the Z direction were combined to perform an air entanglement treatment, and a composite yarn (167 dtex / 144 fil, crimp rate) 12%, torque 0 T / m). At that time, the air entanglement process was an interlace process using an interlace nozzle, and an entanglement of 50 pieces / m was applied at an overfeed rate of 1.0% and a pneumatic pressure of 0.3 MPa (3 kgf / cm ² ).

Next, using the composite yarn, a circular knitted fabric with a tengu structure was knitted using a 28G single circular knitting machine. And the normal dyeing finishing process was performed to this knitted fabric, and the water absorption process was performed in the final setting process. In addition, as this water absorption process, the hydrophilizing agent (polyethylene terephthalate-polyethylene glycol copolymer) was made to adhere to a knitted fabric 0.30 weight% with respect to the knitted fabric weight.
In the knitted fabric thus obtained, the basis weight is 135 g / m ² , the density is 43 courses / 2.54 cm, 41 wales / 2.54 cm, the stretchability in the horizontal direction is 85%, the stretchability recovery rate in the horizontal direction is 95%, the texture “soft It was excellent in soft texture, stretchability and anti-snugging properties. Further, in the knitted fabric, the visible light shielding rate in the wavelength range of 400 to 700 nm was 68%, which was excellent in permeability.
After sewing a T-shirt (sports clothing) using such a knitted fabric, a heart rate sensor was attached, and a clothing was obtained with a biological information detection sensor. Such a garment is a garment having a standard deviation of the heart rate at the time of wearing of 1.12 bpm and capable of detecting biological information with high accuracy and having excellent wearing comfort.

[Example 2]
In Example 1, a composite yarn (167 dtex / 144 fil, crimp rate 8%, torque 10 T / m) was obtained by changing the number of false twists of only the Z direction false twist to 1800 T / M. The rest was the same as in Example 1.
In the knitted fabric thus obtained, the basis weight is 140 g / m ² , the density is 50 course / 2.54 cm, 45 wales / 2.54 cm, the stretchability in the horizontal direction is 80%, the stretchability recovery rate in the horizontal direction is 92%, the texture “soft” It was excellent in soft texture and stretchability.
After sewing a T-shirt (sports clothing) using such a knitted fabric, a heart rate sensor was attached, and a clothing was obtained with a biological information detection sensor. Such clothing is a clothing that is capable of detecting biological information with a high standard deviation of 1.10 bpm in heart rate at the time of wearing and excellent in wearing comfort.

[Example 3]
Using ordinary polyethylene terephthalate (matting agent content: 0.3% by weight), melt spinning at 280 ° C. from a normal spinning machine, taking up at a speed of 2800 m / min, winding without drawing, and semi-drawing The obtained polyester yarn 90 dtex / 48 fil (single yarn fiber cross section: round cross section) was obtained.
Next, using the polyester yarn, simultaneous drawing false twist crimping is performed under the conditions of a draw ratio of 1.6 times, a false twist number of 2500 T / m (S direction), a heater temperature of 180 ° C., and a yarn speed of 350 m / min. It was.
Further, using the polyester yarn, simultaneous drawing false twist crimping is performed under the conditions of a draw ratio of 1.6 times, a false twist number of 2500 T / m (Z direction), a heater temperature of 180 ° C., and a yarn speed of 350 m / min. It was.
Subsequently, the false twisted crimped yarn having the torque in the S direction and the false twisted crimped yarn having the torque in the Z direction were combined to perform an air entanglement treatment, and a composite yarn (110 dtex / 96 fill, crimp rate 7) %, Torque 0 T / m). In the air entanglement treatment, an interlace nozzle was used, and an entanglement of 60 pieces / m was imparted at an overfeed rate of 1.0% and a pneumatic pressure of 0.3 MPa (3 kgf / cm ² ).

Subsequently, the composite yarn was used as a front side yarn, while a false twisted crimped yarn (56 dtex / 72 fil, a crimp rate of 13%, a torque of 40 T made of polyethylene terephthalate (matting agent content: 0.3% by weight). / M) was used as the back yarn, and a 28K double circular knitting machine was used to knit a circular knitted fabric of one side connected structure. And the normal dyeing finishing process was performed to this knitted fabric, and the same water absorption process as Example 1 was performed in the final setting process.
In the knitted fabric thus obtained, the basis weight is 175 g / m ² , the density is 43 courses / 2.54 cm, 32 wales / 2.54 cm, the stretchability in the horizontal direction is 90%, the stretchability recovery rate in the horizontal direction is 96%, the texture “soft It was excellent in soft texture and stretchability.
After sewing a T-shirt (sports clothing) using such a knitted fabric, a heart rate sensor was attached, and a clothing was obtained with a biological information detection sensor. Such a garment is a garment having a standard deviation of the heart rate at the time of wearing of 1.12 bpm and capable of detecting biological information with high accuracy and having excellent wearing comfort.

[Example 4]
In Example 1, the polyethylene terephthalate contains 1.0% by weight of 2,2′-p-phenylenebis (3,1-benzoxazin-4-one) organic ultraviolet absorber with respect to the weight of polyethylene terephthalate. Except for this, the procedure was the same as in Example 1. In the obtained knitted fabric, the ultraviolet shielding rate was 94% in the wavelength range of 280 to 400 nm and the ultraviolet shielding property was excellent.
After sewing a T-shirt (sports clothing) using such a knitted fabric, a heart rate sensor was attached, and a clothing was obtained with a biological information detection sensor. Such clothing is a clothing that can detect biological information with a high standard deviation of 1.30 bpm in heart rate when worn and has excellent wearing comfort.

[Example 5]
In Example 1, the cross-sectional shape of the single yarn fiber has three constricted portions per side as shown in FIG. 1 of Japanese Patent No. 5155162, and the cross-sectional flatness B / C1 is 3. The same procedure as in Example 1 was performed except that the flat cross-sectional shape was 2 and the ratio C1 / C2 was 1.2.
In the obtained knitted fabric, the texture was “particularly soft”. The knitted fabric was also excellent in water absorption.
After sewing a T-shirt (sports clothing) using such a knitted fabric, a heart rate sensor was attached, and a clothing was obtained with a biological information detection sensor. Such a garment is a garment having a standard deviation of the heart rate at the time of wearing of 0.83 bpm and capable of detecting biological information with high accuracy and having excellent wearing comfort.

[Example 6]
Example 1 was the same as Example 1 except that the cross-sectional shape of the single yarn fiber was changed to a cross-sectional shape.
In the obtained knitted fabric, the texture was “soft”. The knitted fabric was also excellent in water absorption.
After sewing a T-shirt (sports clothing) using such a knitted fabric, a heart rate sensor was attached, and a clothing was obtained with a biological information detection sensor. Such clothing is a clothing capable of detecting biometric information with a high standard deviation of 1.48 bpm in heart rate when worn and having excellent wearing comfort.

[Example 7]
In Example 1, instead of ordinary polyethylene terephthalate (matting agent content: 0.3% by weight), ordinary polytrimethylene terephthalate (matting agent content: 0.3% by weight) was used. Same as Example 1.
In the obtained knitted fabric, the texture was “particularly soft”.
After sewing a T-shirt (sports clothing) using such a knitted fabric, a heart rate sensor was attached, and a clothing was obtained with a biological information detection sensor. Such a garment is a garment having a standard deviation of the heart rate at the time of wearing of 1.22 bpm and capable of detecting biological information with high accuracy and excellent wear comfort.

[Comparative Example 1]
Using a 28G single circular knitting machine, a round knitted fabric with a tentacle structure was knitted using a false twist crimped yarn (167 dtex / 144 fil, 14% crimp, torque 45 T / m) made of polyethylene terephthalate. And the normal dyeing finishing process was performed to this knitted fabric, and the same water absorption process as Example 1 was performed in the final setting process.
In the knitted fabric thus obtained, the basis weight is 130 g / m ² , the density is 42 courses / 2.54 cm, 41 wales / 2.54 cm, the stretchability in the horizontal direction is 50%, the stretchability recovery rate in the horizontal direction is 85%, the texture “soft” "Met. The stretchability in the vertical direction was less than 60%.
After sewing a T-shirt (sports clothing) using such a knitted fabric, a heart rate sensor was attached, and a clothing was obtained with a biological information detection sensor. Such clothing has a standard deviation of the heart rate at the time of wearing of 6.32 bpm, which is insufficient in accuracy for detecting biological information and inferior in wearing comfort. It was.

[Comparative Example 2]
A false twist crimped yarn made of polyethylene terephthalate (110 dtex / 96 fil, a crimp rate of 10%, a torque of 35 T / m) was used as the front yarn, while a false twist crimped yarn made of polyethylene terephthalate (56 dtex / 72 fil, Using a 28G double circular knitting machine, a circular knitted fabric of one side connected structure was knitted using a crimp rate of 13% and a torque of 40 T / m) as the back yarn. And the normal dyeing finishing process was performed to this knitted fabric, and the same water absorption process as Example 1 was performed in the final setting process.
In the knitted fabric thus obtained, the basis weight is 130 g / m ² , the density is 42 courses / 2.54 cm, 41 wales / 2.54 cm, the anti-snugging property is second grade, the horizontal stretch property is 55%, and the horizontal stretch property recovery rate. 88%, the texture was “soft”. The stretchability in the vertical direction was less than 60%.
After sewing a T-shirt (sports clothing) using such a knitted fabric, a heart rate sensor was attached, and a clothing was obtained with a biological information detection sensor. Such clothing has a standard deviation of the heart rate when worn of 4.97 bpm, which is insufficient in accuracy for detecting biological information and inferior in wearing comfort. It was.

  ADVANTAGE OF THE INVENTION According to this invention, the clothing which can detect biometric information accurately and was excellent in wearing comfort is provided, and the industrial value is very large.

Claims (13)

  A garment comprising a biometric information notification sensor, comprising a fabric having a stretchability of at least one of a horizontal direction and a vertical direction in a range of 60 to 100%.   The garment according to claim 1, comprising crimped fibers having a torque of 30 T / m or less.   The garment according to claim 2, wherein the crimped fiber is a composite yarn including a false twist crimped yarn having a torque in the S direction and a false twist crimped yarn having a torque in the Z direction.   The garment according to claim 3, wherein the composite yarn is an entangled yarn subjected to an interlace process.   The clothing according to claim 3 or 4, wherein the torque of the composite yarn is non-torque.   The clothing according to any one of claims 2 to 5, wherein the crimped fiber has a single fiber fineness of 2.3 dtex or less.   The clothing according to any one of claims 2 to 6, wherein the crimped fibers are made of polyester fibers.   The garment according to any one of claims 2 to 7, wherein the garment includes a knitted fabric, and the knitted fabric includes the crimped fibers.   The knitted fabric according to claim 8, wherein the knitted fabric has a knitted fabric density of 40 to 100 / 2.54 cm of course and 30 to 60 / 2.54 cm of wales.   The garment according to claim 8 or 9, wherein the knitted fabric has a weft knitting structure.   The clothing according to any one of claims 8 to 10, wherein the knitted fabric is subjected to water absorption processing. Basis weight of the knitted fabric is in the range of 70~250g / ^{m 2,} garment according to any one of claims 8-11.   The clothing according to any one of claims 1 to 12, wherein the biological information detection sensor is a heart rate sensor.