JP2024018079A - fabric - Google Patents

Abstract

[Problem] The present invention provides a fabric that has both body correction power and ability to follow movement, and is comfortable against the skin. SOLUTION: The woven fabric of the present invention is a woven fabric in which yarns parallel to the longitudinal direction contain a polyester elastomer, and yarns parallel to the width direction are folded back at at least one width end of the woven fabric, and The fabric has an elongation rate in the load direction of 1.0% or more and 20.0% or less when a load of 100N/50mm is applied in the longitudinal direction of the fabric, and a width of 30mm or more and 200mm or less. [Selection diagram] None

Description

The present invention relates to textiles.

Proposals for fixing and correcting the body using textile products are already known; Patent Document 1 discloses a lumbar pain band using a stretchable fabric, and Patent Document 2 discloses a lumbar pain band using a monofilament for the weft. A seat belt webbing has been disclosed that improves lateral rigidity and suppresses weft breakage due to the impact of an accident. Patent Document 3 describes an invention related to a correction tool, and describes the use of a belt-shaped textile structure that has a function of exerting a correction force on a correction site when worn in the correction tool. In this way, by using fiber fabrics that are more flexible than metal or plastic materials, it is possible to follow the movement and form of the body and fix it, but it is possible to fix parts of the body, especially the lower limbs, that require high correction force. The development of materials with appropriate elongation properties under high stress is desired for the correction of these areas.

Japanese Patent Application Publication No. 2005-95508 Japanese Patent Application Publication No. 2003-41431 International Publication No. 2021/029325

However, although conventionally known elastic materials such as rubber bands can follow the movement of the foot to a certain extent, they do not have sufficient fixation force to fix the corrected area and cannot provide the necessary forcing force. Further, although the material disclosed in Patent Document 2 has a certain degree of rigidity and flexibility, it has poor elasticity in the longitudinal direction, and cannot follow the movement of the body during correction, causing pain due to friction with the skin. Further, the woven structure specifically described in Patent Document 3 uses the weft direction of the woven structure as the longitudinal direction of the belt, and it is necessary to process the woven fabric into a belt. When fabrics are processed into strips for use, if you attempt to cut wide fabrics using heat for productivity reasons, there is a risk that the melted resin of the fibers will form burrs and rub against the skin, causing pain. , there was room for improvement.

SUMMARY OF THE INVENTION An object of the present invention is to provide a fabric that has both the ability to correct the body and the ability to follow movement, and is comfortable against the skin.

The present invention aims to achieve the above object and has the following configuration.

(1) A fabric in which threads parallel to the longitudinal direction contain a polyester elastomer, and threads parallel to the width direction are folded back at at least one width end of the fabric, and the threads parallel to the longitudinal direction of the fabric are 100N/ A woven fabric having an elongation rate in the load direction at a load of 50 mm of 1.0% or more and 20.0% or less, and a width of 30 mm or more and 200 mm or less.

(2) The woven fabric according to (1) above, wherein the threads parallel to the width direction are folded back at one width end of the woven fabric, and the other width end includes a twining thread.

(3) The fabric according to (1) or (2) above, wherein the yarn containing the polyester elastomer has a fineness of 2000 dtex or more and 2500 dtex or less.

(4) The woven fabric according to any one of (1) to (3) above, wherein the threads parallel to the width direction have a length of 1500 dtex or more and 2000 dtex or less.

(5) The woven fabric according to any one of (2) to (4) above, wherein the entangled yarn has a length of 150 dtex or more and 350 dtex or less.

(6) The woven fabric according to any one of (1) to (5) above, wherein the threads parallel to the width direction include inelastic threads.

(7) Any of (1) to (6) above, wherein the yarn parallel to the longitudinal direction is a core-sheath type yarn, the sheath component is mainly composed of a polyester elastomer, and the core component is mainly composed of polyethylene terephthalate. Fabric described in Crab.

(8) The woven fabric according to any one of (1) to (7) above, which has an elongation recovery rate of 60% or more and 100% or less after being stretched 50 times under a load of 100 N/50 mm in the longitudinal direction.

The present invention has made it possible to provide a fabric that has elongation characteristics suitable for body correction, has both body correction power and ability to follow movement, and is comfortable against the skin.

The fabric of the present invention is particularly suitable for fiber orthotics and orthotic belts, and is suitable for use in treatment and rehabilitation of upper limb orthotics and torso for the purpose of preventing body deformation, improving function, and improving movement in daily life. Although it can be suitably used for orthoses such as orthoses and lower limb orthoses, the scope of application is not limited thereto.

FIG. 1 is a conceptual diagram showing a clubfoot correction device made of fiber produced in an example.

In the fabric of the present invention, threads parallel to the longitudinal direction contain a polyester elastomer. By including the polyester elastomer, appropriate extensibility and recovery properties can be imparted to the fabric when it is stretched in the longitudinal direction.

In the above case, the proportion of the yarn parallel to the longitudinal direction containing the polyester elastomer is appropriately determined within a range that provides the desired properties, but the proportion of the yarn parallel to the longitudinal direction of the fabric as a whole is 50% by mass or more, It is preferably 100% by mass or less.

Polyester elastomers are made by combining aromatic polyester and polyoxyalkylene glycol, which are made from aromatic dicarboxylic acid and glycol, as the main raw materials, in order to obtain the strength necessary for body correction as a stretch fabric and recovery properties after stretching. Block copolymers are preferred. Furthermore, a copolymer of polybutylene terephthalate and polytetramethylene glycol is more preferably used because it has good recovery properties after elongation.

As such a polyester elastomer, commercially available products such as "Hytrel" (registered trademark) manufactured by DuPont-Toray can be used.

Further, in the present invention, it is preferable that the yarn parallel to the longitudinal direction is a core-sheath type yarn containing a polyester elastomer, in particular, the sheath component is mainly composed of a polyester elastomer, and the core component is mainly composed of polyethylene terephthalate. It is preferable to use it as a component.

By including polyethylene terephthalate, which does not have rubber elasticity, as a core component, the rubber elasticity in the longitudinal direction of the fabric can be intentionally lowered, and as a result, it is possible to impart elastic properties that are more suitable for body correction. In addition, in the above, the "main component" refers to the most abundant component among the constituent components, and from the viewpoint of controlling the rubber elasticity in the longitudinal direction of the fabric, it is preferably 50% by mass or more, more preferably 80% by mass or more, and most preferably is 100% by mass.

Among the area ratios of the core and sheath in the cross section of the yarn, the ratio of the core component is preferably 3% or more and 50% or less, more preferably 5% or more and 20% or less. Further, it is preferable that the yarn parallel to the longitudinal direction has a small number of filaments, and is more preferably a monofilament. By using a monofilament, the contact area between the threads at the intersection points of the fabric is reduced, and the recovery property of expansion and contraction, that is, the followability is improved.

Further, in the woven fabric of the present invention, it is preferable that the threads parallel to the width direction include inelastic threads. By including the inelastic threads in the threads parallel to the width direction, the rubber elasticity of the fabric in the longitudinal direction and the bias direction can be deliberately reduced, and as a result, it is possible to impart stretch characteristics more suitable for body correction. The "inelastic yarn" here refers to a yarn other than an elastic yarn, and is preferably a yarn made of polyethylene terephthalate, polybutylene terephthalate, polypropylene terephthalate, a copolymer thereof, polyamide, etc., or a metal fiber, etc. However, threads that can be set by heat are preferably used. Note that the term "consisting" here means that the polymer is contained as a main component, but other components such as various additives may also be contained.

In the above case, the proportion of the inelastic yarn to be used is determined as appropriate within a range that provides the desired properties, but it is preferably 50% by mass or more and 100% by mass or less for the entire yarn parallel to the width direction of the fabric. preferable.

In the woven fabric of the present invention, threads parallel to the width direction are folded back at at least one width end of the woven fabric. Threads parallel to the width direction may be folded back at both width ends of the fabric. Here, "folding back" refers to the edges where threads parallel to the width direction, such as weft threads, are interwoven with threads parallel to the longitudinal direction when weaving, and are cut at the width end and knitted using entangled threads, etc. It is simply folded back as a weft without any processing. When the fabric is folded back at only one width end, it is preferable that the other width edge is knitted using entanglement threads so that the threads parallel to the width direction do not protrude outside the weave structure of the fabric. By adopting the above aspect, there is no need to melt and cut the width end of the fabric using heat, ultrasonic waves, etc., and when the fabric is used for body correction, etc., it is possible to reduce fraying of the threads and scratches on the body due to burrs. In order to achieve the above aspect, it is preferable to weave using a shuttle loom or a needle loom.

Among these, it is more preferable to create a woven fabric in which threads parallel to the width direction are folded back at one end and entwined threads are included at the other end of the width, as this increases the weaving speed and improves productivity. Further, the yarn used for the entangled yarn may be either a spun yarn composed of short fibers or a long fiber as long as it satisfies the range specified in the present invention. The material of the thread is not limited to natural fibers, synthetic fibers, etc. as long as it satisfies the range specified in the present invention, and various fibers can be used. It is preferable to use from the viewpoint of appearance, dyeability, etc.

In the woven fabric of the present invention, the fineness of the yarn containing the polyester elastomer is preferably 2000 dtex or more and 2500 dtex or less. When the fineness of the yarn containing the polyester elastomer is 2000 dtex or more, the strength of the woven fabric is excellent, and the woven fabric has an appropriate thickness and firmness, resulting in excellent straightening power and application comfort. By setting the woven fabric to 2,500 dtex or less, the fabric has excellent flexibility, does not become stiff when used for body correction, has excellent wearing comfort, or has a more preferable range of extensibility under a desired load. The fineness of the yarn containing the polyester elastomer is more preferably 2100 dtex or more and 2400 dtex or less.

In the woven fabric of the present invention, it is preferable that the threads parallel to the width direction have a length of 1500 dtex or more and 2000 dtex or less. When the threads parallel to the width direction are 1500 dtex or more, the fabric has excellent strength similar to the polyester elastomer, and the fabric has an appropriate thickness and firmness, resulting in excellent straightening power and application comfort. By setting the woven fabric to 2000 dtex or less, the fabric has excellent flexibility, and when used for body correction, etc., it does not feel stiff and is comfortable to wear. The fineness of the yarn parallel to the width direction is more preferably 1,600 dtex or more and 1,900 dtex or less.

When using entangled yarns in the fabric of the present invention, it is preferable that the entangled yarns have a length of 150 dtex or more and 350 dtex or less. When the entanglement yarn is 150 dtex or more, the strength of the woven fabric is excellent, and when it is 350 dtex or less, the yarn binding force at the end is in a more appropriate range, and when it is made into a woven fabric, there is no appearance defect such as puckering. , excellent appearance. The fineness of the entangled yarn is more preferably 180 dtex or more and 300 dtex or less.

Further, the elongation rate in the load direction when a load of 100 N/50 mm is applied in the longitudinal direction of the fabric is 1.0% or more and 20.0% or less. More preferably, it is 1.5% or more and 10.0% or less. By setting the elongation rate to 1.0% or more, when used for body correction, etc., the corrected area will not be fixed excessively and will be stretched appropriately, reducing friction between the corrected area and the correction tool. . This improves the ability to follow the swinging of the correction site during operation and the pressure on the body that occurs when correction force is applied, and suppresses pain and discomfort when worn. In addition, the fabric absorbs the force applied by the wearer during movement, making it easier to move muscles, which is effective in restoring function and improving daily movement. Furthermore, by setting the elongation rate to 20.0% or less, the elongation is appropriately stopped and the body can be corrected.

The weave structure of the fabric is not particularly limited as long as it satisfies the range specified in the present invention, but plain weave, twill weave, satin weave, and double weave that is a combination of these structures may be used depending on the purpose. It can be selected as appropriate.

Further, in the fabric of the present invention, the cover factor of threads parallel to the longitudinal direction is preferably 800 or more and 2000 or less. When the cover factor is 800 or more, the strength of the woven fabric is excellent, and when it is 2000 or less, the productivity in the weaving process is excellent. More preferably, it is 1200 or more and 1800 or less. Moreover, it is preferable that the cover factor of the yarn parallel to the width direction is 1400 or more and 3000 or less. When the cover factor is 1400 or more, the strength of the woven fabric is excellent, and when it is 3000 or less, the extensibility in the longitudinal direction of the woven fabric is in a more appropriate range. More preferably, it is 1500 or more and 2100 or less.

Here, the cover factor is a value calculated as follows. In addition, the cover factor of the above-mentioned fabric is calculated based on the weaving density and fineness of the constituent yarns of the fabric as a finished product obtained by post-processing the greige fabric, but for convenience, it may be calculated based on the fineness of the raw yarn used (however, depending on the technology As a matter of common sense, if it is not clear that the fineness of either the raw yarn or the constituent yarns before weaving is within the above range, measurements should be made in accordance with the principles.) In addition, the Examples and Comparative Examples described below were calculated based on the weaving density and yarn fineness of the finished product.

(Cover factor) = (density: book/2.54cm) x (fineness: (9/10) x fineness (dtex)) ^1/2 .

Further, the width of the woven fabric of the present invention is 30 mm or more and 200 mm or less. If the width is less than 30 mm, the strength of the fabric will be insufficient. Alternatively, when used for body correction, etc., the contact surface with the body is reduced, and since the woven fabric has a relatively low elongation rate in the longitudinal direction, it tends to dig in, which tends to reduce wearing comfort. Furthermore, if the width is larger than 200 mm, the fabric has a relatively low elongation rate in the longitudinal direction, so when used for body correction, etc., the fabric tends to become stiff and wear comfort decreases. It is more preferable that the woven fabric of the present invention has a width of 40 mm or more and 100 mm or less.

The woven fabric of the present invention preferably has an elongation recovery rate of 60% or more and 100% or less, more preferably 80% or more and 100% or less after being stretched 50 times in the longitudinal direction under a load of 100 N/50 mm. By setting the extension recovery rate after 50 extensions within the above range, when used for body correction, etc., the force to return to the original correction position acts appropriately against the force applied by the wearer. This method is preferable because it maintains the proper corrected position and is effective in restoring function and improving daily movement. In addition, by maintaining appropriate fixing force and corrective force for a long period of time, the orthodontic device of the present invention can be used continuously, and is even more effective in recovering function and improving daily movement. Examples of the method for setting the elongation recovery rate to 60% or more and 100% or less include a method of creating a woven fabric using yarn containing a polyester elastomer in the longitudinal direction of the woven fabric.

The fabric of the present invention obtained in this way has both the corrective force of the body and the ability to follow movement, and is good against the skin, so it can be used for corrective devices made of fibers and corrective belts for orthotics (particularly those that exert corrective force in the corrective direction). It can be suitably used for an anchor member (for example, a member serving as a fulcrum for imparting a correction force in the correction direction for a correction member) and a correction member used for this purpose. Among these, it can be suitably used for therapeutic and rehabilitation equipment such as upper limb orthosis, trunk orthosis, and lower limb orthosis for the purpose of preventing body deformation, improving function, and improving movement in daily life. The range is not limited to these.

Next, the woven fabric of the present invention will be explained based on Examples. The method of measuring characteristics used in the examples is as follows.

(1) Fineness Fineness was measured based on JIS L 1013:2010 8.3.1 Positive Fineness (Method B).

(2) Fabric Width Using a ruler, measurements were taken at five arbitrary points in the width direction of the fabric, and the average was expressed.

(3) Elongation rate when load is 100 N/50 mm Five test pieces measuring 50 mm in the width direction and 300 mm in the longitudinal direction were taken from the fabric. Using a constant speed extension type tensile testing machine with an automatic recording device, the grip interval was set to 200 mm, and the test piece was fixed to the grips to remove slack and tension. Stretch at a tensile speed of 200 mm/min until a load of 150 N is reached, measure the displacement at 100 N based on the load deformation curve obtained, and calculate the elongation rate L (%) using the following formula. Expressed as the average of

Elongation rate L (%) = (L1/L) x 100
L: Gripping interval (mm)
L1: Displacement when extended to 100N (mm)
In addition, when the width of the woven fabric was less than 50 mm, the load was measured and calculated based on the width of the woven fabric so that the load was 100 N/50 mm.

(4) Elongation recovery rate Five test pieces measuring 50 mm in the width direction and 300 mm in the longitudinal direction were taken. Using a constant speed extension type tensile testing machine with an automatic recording device, the grip interval was marked as 200 m (Ld), and the test piece was fixed to the grips to remove slack and tension. It was stretched to 100 N at a tensile speed of 200 mm/min, left for 1 minute, returned to its original position at the same speed, and left for 3 minutes. After repeating this operation 50 times, remove the load, leave it for 3 minutes, remove the slack and tension of the test piece, measure the length between the marks (Ld1), and use the following formula to measure the elongation recovery rate LD (% ) was calculated and expressed as the average of 5 sheets.
Elongation recovery rate LD (%) = [Ld-(Ld1-Ld)/Ld] x 100
In addition, when the width of the woven fabric was less than 50 mm, the load was measured and calculated based on the width of the woven fabric so that the load was 100 N/50 mm.

(5) Weave density Measured based on JIS L 1096:2010 8.6.1 (Method A). The sample was placed on a flat table, and the number of warp and weft yarns present in 1 inch (2.54 cm) at five different locations was counted, excluding unnatural wrinkles and tension, and the average value of each was calculated.

(6) Wearing Evaluation A fiber clubfoot correction device shown in FIG. 1 was produced using the fabric of the present invention. FIG. 1 is a conceptual diagram showing a clubfoot correction device made of fiber produced in an example. Unless otherwise specified, the width ends in the width direction (perpendicular to the longitudinal direction) are not cut, and the anchor member A1 and the anchor member B3 are used as the correction member 2 as shown in FIG. The structure aims to apply corrective force in the direction of. At that time, the longitudinal direction of the fabric was used as the longitudinal direction of each member. This clubfoot correction device was worn on one leg of a clubfoot patient who needed correction, and the patient walked for one hour, and evaluated three items: clubfoot correction power, wearing comfort, and followability. The varus correcting power was evaluated by observing the wearer's walking condition by a professional third party, and the wearing comfort and followability were evaluated by the wearer's sensory evaluation. , × was used for evaluation.

A. Inversion correction power ◎: Inversion is corrected more fully than when no corrective device is worn, and when walking, both the outer and inner edges of the sole of the foot touch the ground.

○: There is a slight inversion of the foot while walking, but the inversion is corrected better than when the orthotics were not worn, and the patient walks so that both the outer and inner edges of the sole touch the ground when landing.

△: There is a certain amount of inversion in the foot while walking, but the inversion has been improved compared to when the orthotics were not worn, and the walking is stabilized.

×: There is no difference in the inversion state compared to when the corrector was not worn, the inversion of the foot cannot be corrected, and when the foot lands, the outer edge of the sole touches the ground, making walking unstable.

B. Wearing comfort ◎: No discomfort while walking.

○: Slight discomfort while walking.

△: There is some discomfort while walking, but it is possible to continue wearing it.

×: Uncomfortable feeling while walking, unable to continue wearing.

In addition, in cases of △ or below, details of the discomfort are also listed.

C. Trackability ◎: Tracks walking motion sufficiently.

○: Approximately follows walking motion.

△: The movement of walking is followed, but there are times when it is not possible to follow it to some extent.

×: Unable to follow walking motion.

(Example 1)
Polyethylene terephthalate is used as the core component, and poly(butylene glycol/polytetramethylene ether glycol) terephthalate ("Hytrel" (registered trademark) manufactured by DuPont Toray) is used as the sheath component, and the cross-sectional area ratio is core:sheath = 10:90. A 2200 dtex core-sheath type monofilament was used as the warp, and a 1670 dtex-144 filament polyethylene terephthalate (high tenacity polyester fiber manufactured by Toray Industries, Ltd.) was lightly twisted at 70 T/m as the inelastic weft. Furthermore, using a 220 dtex-72 filament polyethylene terephthalate fiber as a twining thread, one end of the weft was folded back and the other end was folded back on a needle loom with a warp density of 30 threads/2.54 cm and a weft density of 42 threads/2.54 cm. A 2/2 twill fabric was produced in which the ends of the twill fabric were woven with twine threads. The obtained woven fabrics were heat-treated for 2 minutes at a temperature of 170° C. under conditions such that the threads do not fuse together, and then scoured using a continuous scouring machine to obtain woven fabrics with properties shown in Table 1. In addition, Table 1 shows the physical properties and wearing evaluation results of the obtained fabric. It was suitable for use in body correction.

(Example 2)
A woven fabric was obtained in the same manner as in Example 1, except that the settings of the loom were changed and the finished width of the woven fabric was changed from 50 mm to 30 mm. Table 1 shows the properties, physical properties, and wearing evaluation results of the obtained fabric. Although it was somewhat less comfortable to wear, it was suitable for use in body correction.

(Example 3)
A woven fabric was obtained in the same manner as in Example 1, except that the settings of the loom were changed and the finished width of the woven fabric was changed from 50 mm to 200 mm. Table 1 shows the properties, physical properties, and wearing evaluation results of the obtained fabric. Although it was somewhat less comfortable to wear, it was suitable for use in body correction.

(Example 4)
A woven fabric was obtained in the same manner as in Example 1, except that 360 dtex-72 filament polyethylene terephthalate fibers were used as entangled threads. Table 1 shows the properties, physical properties, and wearing evaluation results of the obtained fabric. Although puckering was observed at the ends, it was suitable for use in body correction.

(Example 5)
A woven fabric was obtained in the same manner as in Example 1 except that the warp in Example 1 was a core-sheath type multifilament of 2200 dtex-72 filaments. Table 1 shows the properties, physical properties, and wearing evaluation results of the obtained fabric. It was suitable for use in body correction.

(Example 6)
A woven fabric was produced in the same manner as in Example 1, except that the warp in Example 1 was a 2200 dtex monofilament made only of poly(butylene glycol/polytetramethylene ether glycol) terephthalate (“Hytrel” (registered trademark) manufactured by DuPont-Toray). I got it. Table 1 shows the properties, physical properties, and wearing evaluation results of the obtained fabric. Although its corrective power was somewhat inferior, it was suitable for use in correcting the body.

(Example 7)
The same procedure was carried out except that the weft yarn of Example 1 was changed to a multifilament of 1670 dtex-144 filament made only of poly(butylene glycol/polytetramethylene ether glycol) terephthalate ("Hytrel" (registered trademark) manufactured by DuPont-Toray) (elastic yarn). A fabric was obtained in the same manner as in Example 1. Table 1 shows the properties, physical properties, and wearing evaluation results of the obtained fabric. Although its corrective power was somewhat inferior, it was suitable for use in correcting the body.

(Example 8)
A woven fabric was obtained in the same manner as in Example 1, except that a shuttle loom was used to weave without using entangled yarns, and both ends of the weft yarns were folded back. Table 1 shows the properties, physical properties, and wearing evaluation results of the obtained fabric. Although the weaving speed was slow and productivity was poor, it was suitable for use in body correction.

(Example 9)
The warp of Example 1 was changed to a core-sheath type multifilament of 1670 dtex-72 filament, and the weft was changed to a yarn made of polyethylene terephthalate (high strength polyester made by Toray) fiber of 350 dtex-144 filament with a gentle twist of 150 T/m. A woven fabric was obtained in the same manner as in Example 1 except that the greige density was 34 threads/2.54 cm in warp density and 92 threads/2.54 cm in weft density. Table 1 shows the properties, physical properties, and wearing evaluation results of the obtained fabric. It was suitable for use in body correction, although its corrective power and wearing comfort were somewhat inferior.

(Example 10)
The warp in Example 1 was changed to a 3000 dtex core-sheath type multifilament, and the weft was changed to a 2500 dtex-144 filament polyethylene terephthalate (Toray high strength polyester) fiber with a 57 T/m soft twist. A woven fabric was obtained in the same manner as in Example 1 except that the warp density was 26 threads/2.54 cm and the weft density was 34 threads/2.54 cm. Table 1 shows the properties, physical properties, and wearing evaluation results of the obtained fabric. Although it was stiff and somewhat less comfortable to wear, it was suitable for use in body correction.

(Comparative example 1)
Polyethylene terephthalate is used as the core component, and poly(butylene glycol/polytetramethylene ether glycol) terephthalate ("Hytrel" (registered trademark) manufactured by DuPont Toray) is used as the sheath component, and the cross-sectional area ratio is core:sheath = 10:90. Using a core-sheath type monofilament of 2200 dtex, a knitted fabric with a jersey texture was produced using a circular knitting machine. Processing was carried out in the same manner as in Example 1 to obtain a knitted fabric. Table 2 shows the properties, physical properties, and wearing evaluation results of the obtained knitted fabric. The elongation rate of the fabric was high and the straightening power was poor.

(Comparative example 2)
A woven fabric was obtained in the same manner as in Example 1 except that polyethylene terephthalate monofilament of 2200 dtex was used for the warp. Table 2 shows the properties, physical properties, and wearing evaluation results of the obtained fabric. The elongation properties of the fabric were low, resulting in poor wearing comfort and conformability.

(Comparative example 3)
A woven fabric was obtained in the same manner as in Example 1, except that the width was adjusted by thermally cutting both ends of the finished product using a rapier loom. Table 2 shows the properties, physical properties, and wearing evaluation results of the obtained fabric. Burrs were generated at the edges of the fabric, which caused pain when rubbed against the skin, resulting in poor wearing comfort.

(Comparative example 4)
A woven fabric was obtained in the same manner as in Example 1, except that the settings of the loom were changed and the finished width of the woven fabric was changed from 50 mm to 25 mm. Table 2 shows the properties, physical properties, and wearing evaluation results of the obtained fabric. The fabric dug into the skin, making it less comfortable to wear.

(Comparative example 5)
A woven fabric was obtained in the same manner as in Example 1, except that the settings of the loom were changed and the finished width of the woven fabric was changed from 50 mm to 205 mm. Table 2 shows the properties, physical properties, and wearing evaluation results of the obtained fabric. The fabric was stiff and was not comfortable to wear.

(Comparative example 6)
A woven fabric was obtained in the same manner as in Example 1 except that a multifilament consisting of 2200 dtex-14 filament polyurethane alone was used as the warp. Table 2 shows the properties, physical properties, and wearing evaluation results of the obtained fabric. The elongation rate of the fabric was high and the straightening power was poor.

1 Anchor member A
2 Correction member 3 Anchor member B
4 Orthodontic direction

Claims (8)

A woven fabric in which threads parallel to the longitudinal direction contain a polyester elastomer, and threads parallel to the width direction are folded back at at least one width end of the woven fabric, and when a load of 100 N/50 mm is applied in the longitudinal direction of the woven fabric. The woven fabric has an elongation rate in the load direction of 1.0% or more and 20.0% or less, and a width of 30 mm or more and 200 mm or less. The woven fabric according to claim 1, wherein the threads parallel to the width direction are folded back at one width end of the woven fabric, and include a twining thread at the other width end. The woven fabric according to claim 1 or 2, wherein the yarn containing the polyester elastomer has a fineness of 2000 dtex or more and 2500 dtex or less. The woven fabric according to claim 1 or 2, wherein the threads parallel to the width direction have a thickness of 1500 dtex or more and 2000 dtex or less. The woven fabric according to claim 2, wherein the entangled yarn has a length of 150 dtex or more and 350 dtex or less. The woven fabric according to claim 1 or 2, wherein the threads parallel to the width direction include inelastic threads. The woven fabric according to claim 1 or 2, wherein the yarn parallel to the longitudinal direction is a core-sheath type yarn, the sheath component has a polyester elastomer as a main component, and the core component has a polyethylene terephthalate as a main component. The woven fabric according to claim 1 or 2, wherein the woven fabric has an elongation recovery rate of 60% or more and 100% or less after being stretched 50 times under a load of 100 N/50 mm in the longitudinal direction.

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