clothing

By employing a multi-row adhesive design in the elastic part of the garment, combined with the use of linear and dot matrix adhesives, the problems of durability and comfort in high-temperature washing have been solved, thus improving both durability and comfort.

CN122476978APending Publication Date: 2026-07-28TORAY INDUSTRIES INC
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Applications(China)
Current Assignee / Owner
TORAY INDUSTRIES INC
Filing Date
2025-01-09
Publication Date
2026-07-28

AI Technical Summary

Technical Problem

Existing garments using thermoplastic resin to bond tight parts suffer from poor durability during high-temperature washing and unpleasant wearing comfort, especially at dot-matrix or strip-shaped bonding areas where they are prone to peeling. Excessive or insufficient stress can also lead to weakened stress or a poorer wearing comfort.

Method used

The adhesive employs a multi-row adhesive with three or more rows at the overlap between the garment body fabric and the overlapping fabric. The linear adhesive is attached within 2.0 mm of the fabric ends, while the central part is attached in a dot matrix pattern. This ensures a heat peel strength of 5.0 N/2.54 cm or higher when heated to 100°C. The elongation and elongation recovery of the adhesive are also controlled. Reactive resins such as polyurethane resin and thermoplastic resin are used to improve the bonding strength and elasticity.

Benefits of technology

It achieves excellent durability and comfortable wear even after high-temperature washing, ensuring that the bonded parts are not easily peeled off under high-temperature washing conditions, and maintaining good elasticity and ease of wearing and taking off.

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Abstract

To provide clothing with excellent durability and comfortable wear during high-temperature washing, the present invention provides clothing with a fastening portion that holds the wearer in place. The fastening portion has an overlapping portion comprising at least a body fabric and an overlapping fabric. The overlapping fabric is fixed to the body fabric by an adhesive applied in multiple rows of three or more rows parallel to the direction of the fastening force. Among the rows of adhesive applied to the overlapping fabric, the rows of adhesive closest to the ends of the fabric parallel to the direction of the fastening force are applied within 2.0 mm from the ends of the fabric. The rows of adhesive in the central portion are applied in a dot matrix pattern. The heat peel strength of the overlapping portion when heated at 100°C is 5.0 N / 2.54 cm or more. In the portions where the adhesive is applied in a linear pattern, the elongation in the direction parallel to the linear direction is 50% or more, and the elongation recovery rate is 85% or more. The difference in elongation recovery rate between the portions where the adhesive is applied in a linear pattern and the portions where it is applied in a dot matrix pattern in the direction parallel to the linear direction is within 10%.
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Description

Technical Field

[0001] This invention relates to clothing. Background Technology

[0002] Various methods have been studied for constructing the fastening part of clothing using adhesive bonding: methods of bonding strips of rubber; methods of bonding two pieces of fabric in a dot matrix, strip, or film pattern; and methods of using fabric that does not require end treatment without any joining.

[0003] For example, Patent Document 1 proposes a type of clothing that uses dot matrix adhesives to reduce the stress difference between the joint and its parallel portion when it is 50% elongated.

[0004] Furthermore, Patent Document 2 proposes a type of clothing that uses thermoplastic resin adhesive film, i.e., hot melt tape, etc., to bond a stretchable knitted strip to the clothing, thereby making the cutting process easier.

[0005] Furthermore, Patent Document 3 proposes a related technology that, for stretchable fabrics, can be bonded using a non-continuous adhesive such as a serrated one, allowing the fabric to be tracked even when using a resin that lacks stretchability.

[0006] Existing technical documents

[0007] [Patent Literature]

[0008] Patent Document 1: International Publication No. 2021 / 177172

[0009] Patent Document 2: Japanese Patent Application Publication No. 2010-65337

[0010] Patent Document 3: International Publication No. 2014 / 109318 Summary of the Invention

[0011] The problem that the invention aims to solve

[0012] However, in garments using thermoplastic resins, specifically hot-melt resins, to bond the fastening parts, it was found that areas bonded with dot-matrix, strip, or film-like adhesives are prone to peeling during use. After investigating the causes, it was discovered that the problem particularly exists in wash durability, and especially in high-temperature wash durability.

[0013] Furthermore, in the case of dot-matrix bonding, the stress in the tightening area is weakened, while in the case of strip or film bonding, the stress is too strong, which also leads to a decrease in wearing comfort. In the case of serrated bonding, although the elongation characteristics of the fabric can be adjusted to remain as unchanged as possible, it is more difficult to impart elasticity to the tightening area. When the stress is increased, it is difficult to wear clothes, and if the stress is reduced, the tightness becomes worse.

[0014] The present invention was made in view of the above, and its object is to provide clothing with excellent high-temperature washing durability and good wearing comfort.

[0015] (Technical means to solve the problem)

[0016] In order to solve the above-mentioned problems, the clothing of the present invention has the following structure.

[0017] (1) A type of garment having a constricting portion that holds the wearer in place at a part of their body; wherein,

[0018] The aforementioned fastening portion has at least an overlapping portion containing both the garment body fabric and the overlapping fabric;

[0019] The aforementioned overlapping fabric is fixed to the garment fabric using an adhesive that is attached in multiple rows of three or more rows parallel to the direction of the tightening force;

[0020] Among the rows of adhesives attached to the aforementioned overlapping fabrics, the row of adhesives closest to each end of the fabric parallel to the direction of the tightening force is attached in a linear fashion within 2.0 mm of the end of the aforementioned fabric.

[0021] In the aforementioned columns of adhesives applied to the overlapping fabric, the columns of adhesives in the central part are applied in a dot matrix pattern.

[0022] The thermal peel strength of the aforementioned overlapping portion when heated to 100°C is 5.0 N / 2.54 cm or higher;

[0023] In the portion where the adhesive is attached in a linear pattern, the elongation rate in the direction parallel to the linear direction is 50% or more and the elongation recovery rate is 85% or more. The difference in elongation recovery rate between the portion where the adhesive is attached in a linear pattern and the portion where it is attached in a dot matrix pattern is within 10%.

[0024] (2) As described in (1), in the above-mentioned adhesives that are attached in multiple rows of three or more rows, the adhesives in the linear portion are reactive resins.

[0025] (3) The clothing as described in (1) or (2), wherein the stress when the above-mentioned tightening part is stretched by 30% is 3.5~6.0N / 2.54cm.

[0026] (4) The type of clothing described in any of (1) to (3), wherein at least one of the body fabric or overlapping fabric of the aforementioned overlapping portion has a unit area mass of 80 to 140 g / m². 2 ;

[0027] In the cross-section of the aforementioned overlapping portion, the thickness (A) of the resin-permeable layer A on the side of the body fabric and the overlapping fabric with a relatively lower unit area mass or the same unit area mass belonging to the body fabric is... t The thickness of the resin-permeable layer B on side b of fabrics with relatively high unit area mass or fabrics of the same unit area mass belonging to overlapping fabrics (B) t ), and the thickness of the resin layer C formed by the adhesive (C t When the total of ) is set to 100%, A t It is 20%~30%, B t It is 20%~40%, C t It is 30%~60%;

[0028] The thickness of the above-mentioned resin permeation layer A (A) t ) relative to the thickness of fabric a (a t The ratio of (A) t / a t The value is 0.2~0.6.

[0029] Invention Effects

[0030] This invention enables the provision of clothing with excellent high-temperature washing durability and a comfortable wearing experience. Attached Figure Description

[0031] Figure 1 This is a diagram showing the appearance of clothing according to Embodiment 1.

[0032] Figure 2 It is a schematic display Figure 1 The diagram shows the overlapping part of the garment's binding section and the appearance of the adhesive attachment.

[0033] Figure 3 yes Figure 1 The cross-sectional view of the overlapping part of the garment's tightening section is shown.

[0034] Figure 4 A diagram showing the appearance of clothing according to Embodiment 2.

[0035] Figure 5 A diagram showing the appearance of clothing according to Embodiment 3.

[0036] Figure 6 This is a schematic diagram showing the overlap of the garment's drawstring portion and the appearance of the adhesive attachment in Comparative Example 1. Detailed Implementation

[0037] The embodiments for carrying out the present invention (hereinafter referred to as "implementations") will be described below with reference to the accompanying drawings. Furthermore, the drawings are merely illustrative and are not intended to limit the scope of the invention.

[0038] (Implementation Method 1)

[0039] The garment of the present invention has a fastening portion that holds the wearer in place at a part of the body, wherein the fastening portion has at least an overlap portion comprising the body fabric and an overlay fabric.

[0040] Figure 1 This diagram illustrates the structure of clothing according to Embodiment 1. The clothing 1 shown is an example of men's underwear, having a drawstring portion 2 that holds the waist in place. Alternatively, it may have a drawstring portion 3 that holds the legs in place.

[0041] In this invention, the term "tightening part" refers to the part with a strong tightening force. In this invention, the term "tightening force" refers to the elongation stress when worn or assumed to stretch.

[0042] The body fabric 4 of garment 1 is made of a stretchable fabric. There are no particular limitations provided that the garment as defined in this invention can be obtained. For example, there are no limitations as long as the fabric is a knitted material suitable for general clothing use; however, circular knit and warp-knitted materials are preferred because they possess stretchability particularly suitable for the implementation of this invention. Furthermore, even woven fabrics with stretchability for clothing use are suitable for this invention. In addition to general underwear, lingerie, and bras, fabrics suitable for outerwear such as T-shirts or knitted sweaters are also applicable; there are no limitations.

[0043] The overlapping fabric 5 of garment 1 is made of a stretchable fabric. There are no particular limitations, provided that the garment as defined in this invention can be obtained. For example, there are no limitations as long as a knitted material that can be provided as a general clothing material is available; however, circular knitted or warp-knitted materials have stretchability particularly suitable for the implementation of this invention and are therefore preferred. Furthermore, even woven fabrics with stretchability for clothing are suitable for this invention. In addition to general underwear or lingerie, bra cups, fabrics used for outerwear such as T-shirts or knitted sweaters are also applicable and are not limited.

[0044] In this invention, the yarn material used for the stretchable fabrics used in the garment body fabric 4 and the overlapping fabric 5 is not particularly limited. Examples include: polyester synthetic fibers such as polyethylene terephthalate, polypropylene terephthalate, and polybutylene terephthalate; polyamide synthetic fibers such as nylon; synthetic fibers such as polyacrylonitrile and polypropylene; regenerated fibers such as rayon, polynosic fiber, and cuprammonium fiber; semi-synthetic fibers such as acetate and triacetate; natural fibers such as cotton, linen, wool, and silk; polyurethane elastic fibers, polyether-ester elastic fibers, polyamide elastic fibers, and polyolefin elastic fibers; or linear so-called rubber filaments composed of natural rubber, synthetic rubber, or semi-synthetic rubber; and special elastic fibers such as those made by coating synthetic fibers with rubber. Depending on the desired properties, one or more of these can be used. Furthermore, fibers containing additives such as titanium dioxide in the aforementioned fibers can also be used, as well as fibers that have been polymerically modified to impart functionality. For example, by combining the above-mentioned polyester synthetic fibers, polyamide synthetic fibers such as nylon, or elastic fibers with the above-mentioned synthetic fibers such as polyacrylonitrile and polypropylene, regenerated fibers, semi-synthetic fibers, and natural fibers, the properties of different fibers can be exhibited in a composite manner, which is therefore preferred.

[0045] Furthermore, there are no restrictions on the cross-sectional shape of the single fiber unit; various irregular cross-section yarns, such as circular, triangular, octagonal, flat, and Y-shaped yarns, can be used. In addition, core-sheath type or parallel type composite yarns composed of polymers of different viscosities can also be used.

[0046] Furthermore, false-twisted yarn made from these fibers as raw materials can also be used.

[0047] In addition, the most preferred material can be selected appropriately according to the intended use.

[0048] In this invention, the aforementioned overlapping fabric is fixed to the garment fabric by an adhesive that is attached in multiple rows of three or more rows parallel to the direction of the tightening force.

[0049] Figure 2 It is shown schematically. Figure 1 The diagram illustrates the overlapping portion of the garment's fastening part and the attachment of the adhesive. More specifically, it schematically shows the fastening part 2 and the attachment of the adhesive 10 to the garment 1 of Embodiment 1, with a generally strip-shaped overlapping fabric 5 overlapping from above in the same shape as the fastening part 2 that holds the waist of the garment. To show the attachment of the adhesive, a portion of the overlapping fabric 5 is removed. Figure 2In the process, the adhesive 10 is attached in a multi-column arrangement of 5 rows. One column (hereinafter referred to as one column at each end of the overlapping fabric 5) is an adhesive 10A attached in a linear arrangement, while three columns of adhesive 10B are attached in a dot matrix arrangement in the central part. The number of linear columns, the number of columns attached in a dot matrix arrangement, and the arrangement of the linear and dot matrix arrangements are not particularly limited, provided that they satisfy the scope defined by the present invention. Preferably, the arrangement is as shown in the pattern of the adhesive 10 described later.

[0050] In this invention, the width of the overlapping portion is preferably 10 to 100 mm, more preferably 30 to 40 mm, in order to distribute or prevent the pressure of the tightening portion from concentrating. Figure 2 In this configuration, the width of the overlapping portion is 30mm. Furthermore, the width of the overlapping portion refers to the dimension perpendicular to the direction of the applied tension force, for example... Figure 1 The dimension of the trouser length of the mid-tightening part 2, in other words, refers to the dimension in the direction perpendicular to the waist.

[0051] In this invention, "overlapping" can refer to folding the body fabric of a garment in half, or it can be achieved by overlapping other parts onto the tightening part. When overlapping other parts, the same fabric as the body fabric can be used, or other fabrics can be used. In this invention, "overlapping part" refers to the overlapping portion mentioned above. The term "end" refers to the end of the overlapping portion when the body fabric is folded in half to form the overlapping portion; one end corresponds to the end forming the weft line, and the other end is the folded-back end, corresponding to the end of the overlapping portion. Furthermore, when overlapping fabric belonging to other parts, the overlapping of these overlapping fabrics corresponds to the direction of the tightening force (…). Figure 1 The two ends of the middle tightening part 2 (in the waist direction). Additionally, Figure 2 Although the upper end of the garment fabric 4 and the end of the overlapping fabric are offset, they can still be aligned. As long as they are positioned where the tightening force is desired.

[0052] In this invention, among the columns of adhesives attached to the overlapping fabric 5, the columns of adhesives closest to each end of the fabric parallel to the direction of the tightening force are attached in a linear fashion within a range of 2.0 mm from the end of the fabric. Among the columns of adhesives attached to the overlapping fabric, the columns of adhesives in the central part are attached in a dot matrix pattern.

[0053] In this invention, the number of linear columns is one or more on both the top and bottom, and more preferably two or more to distribute the pressure. From the viewpoint of balancing the tightening force, the number of linear columns on the top and bottom is preferably the same, but it can be appropriately changed according to the required tightening force pattern.

[0054] The width (dimension relative to the right angle of the direction of the applied tightening force) of the linearly attached adhesive (hereinafter referred to as linear adhesive) is preferably 0.5 to 10.0 mm, and preferably 0.7 to 2.0 mm in order to maintain adhesion and control the tightening force to avoid excessive force. For example Figure 2 In the middle, the linear adhesive 10A in one column at the top and one column at the bottom consists of a width of 1.0 mm.

[0055] like Figure 2 As shown, in the tightening part 2, the adhesive 10 along the ends of the overlapping fabric 5 is arranged in a linear pattern with one or more rows above and below, and the central row is arranged in a dot matrix pattern. If the distance d1 between the ends of the overlapping fabric 5 and the topmost and bottommost adhesive 10s increases, the fabric ends become free ends during overlapping, which can easily lead to warping. Therefore, the distance d1 from the fabric ends to the rows of adhesives is within 2.0 mm, preferably within 0.5 to 1.0 mm.

[0056] As previously described, the adhesive 10 of the tightening portion 2 has a pattern that, relative to the length direction of the tightening portion 2 (the direction of the tightening force), is linear at the top and linear in the center. "Linear" means excluding dotted lines and solid lines connecting the adhesive 10A. The line shape can also be straight, wavy, serrated, etc., provided it meets the requirements of this invention. To effectively impart elasticity to the adhesive 10A, it is preferable that the line shape is along the length direction of the tightening portion 2 (along the direction of the overlapping fabric end, for example...). Figure 1 The columns are arranged in a straight line (in the direction of the waist). In addition, there is no limit to the number of columns above and below, as long as each column is more than one. For example, in a total of 12 columns, the top 6 columns and the bottom 5 columns can be arranged in a straight line, and the 6th column from the bottom can be arranged in a dot matrix.

[0057] In this invention, the term "central portion" does not necessarily refer strictly to the central portion between the upper and lower linear adhesives. Rather, it refers to the area sandwiched between the uppermost and lower linear adhesives, or between one or more rows of linear adhesives adjacent to them. If there are adhesives attached in a dot-matrix pattern within this area, it can also be considered that there are adhesives attached in a dot-matrix pattern in the central portion. As long as the scope defined by this invention is satisfied, there is no limitation on the number of rows, as long as it is appropriately determined according to the required tightening force.

[0058] Furthermore, the column spacing d3 of the adhesive 10 is preferably equal. More specifically, it is not necessary to be strictly equal; as long as the difference between the minimum spacing d3 of the columns in the tightening part 2 where the adhesive is attached is within 10% relative to the maximum spacing, it is considered equal.

[0059] In this invention, the adhesive (hereinafter referred to as matrix adhesive) column with a dot matrix attached in the central part can be irregularly attached in a strip column or the dot matrix can be regularly arranged in a dot-line column. From the viewpoint of production efficiency, it is preferable to arrange it in a dot-line column.

[0060] The dot-matrix adhesive in the central part preferably has a diameter of 0.5 to 10.0 mm. From the viewpoint of maximizing fabric elongation, a diameter of 2.0 mm or less is preferred, and more preferably 1.0 mm or less. Furthermore, the term "diameter" here, when the dot-matrix shape is not circular, refers to the diameter converted from a circle. For example... Figure 2 In the middle, the dot matrix adhesive 10B consists of a diameter of 1.0 mm.

[0061] When the dot-matrix adhesive is in a single column, the spacing d2 between the dots is preferably 0.1 to 50.0 mm, and preferably equal in the length direction, i.e., the direction of the line and the parallel direction. More specifically, it is not necessary to be strictly equal; as long as the difference between the minimum spacing and the maximum spacing in the spacing d2 between adjacent dots is within 10%, it is considered equal. The spacing between dots refers to the distance from the center of one dot to the center of the adjacent dot. For example... Figure 2 In this configuration, the interval between two adjacent dot-shaped adhesives 10B in the same column is 2.0 mm. Furthermore, if the interval d2 is too wide relative to the diameter of the dot-shaped adhesives 10B, the unevenness will be more noticeable when wearing the garment, which may reduce the wearing comfort or appearance. Therefore, when the diameter R of the dot-shaped adhesives 10B is large, it is preferable that 1.5 × R ≤ d2 < 4 × R.

[0062] In Embodiment 1, the adhesive 10B, which is attached in a dot matrix pattern, is circular in shape, but is not limited to this shape provided that the scope defined by the present invention is satisfied. Any shape that allows the adhesive spacing to be changed and can be repeatedly attached in the state of adhesive separation is acceptable; it can be a dotted line shape, a geometric shape, or a combination of these shapes.

[0063] In this invention, the thermal peel strength of the overlapping portion when heated to 100°C is 5.0 N / 2.54 cm or higher.

[0064] Regarding the resin constituting adhesive 10, it has been found that peeling problems encountered by consumers during use, a problem consistent with previous research, are mainly caused by rubbing and peeling forces during repeated high-temperature treatments such as washing or tumble drying. Therefore, the solution is to ensure that the heat peel strength of the overlapping portion at 100°C is 5.0 N / 2.54 cm or higher. When the peel strength is less than 5.0 N / 2.54 cm, peeling problems occur during high-temperature washing or tumble drying at around 90°C, as practiced in Europe and other regions. If the strength is 5.0 N / 2.54 cm or higher, peeling can be suppressed even during high-temperature treatment at around 90°C. Increasing the resin hardness can be considered to improve peel strength, but excessively increasing the hardness will affect the elongation. Therefore, a hardness of 6.0 to 40.0 N / 2.54 cm is preferred.

[0065] The method for determining hot peel strength (hot peel strength) involves using a tensile testing machine and a constant temperature bath, such as the Shimadzu AGS-5kNX benchtop precision universal testing machine and the TCE-N300A constant temperature bath. The test is conducted according to the method described in "JIS L1086:2020 Test Methods for Adhesive Interlinings and Adhesive Fabrics" while heating at 100°C. The method of measuring while heating at 100°C involves stabilizing the temperature in the constant temperature bath at 100°C, installing the test piece in the tensile testing machine within the constant temperature bath, closing the constant temperature bath, and then stabilizing it again at 100°C (approximately 2 minutes after the test piece is installed) before conducting the measurement. Furthermore, since the portion of the object being evaluated in this invention is linear and dot-matrix bonded, the conversion width for peel strength is calculated based on the actual bond width. For example, if the test piece has a width of 2.54 cm, with two rows of linear adhesives (0.1 cm wide) and eight rows of dot matrix adhesives (0.1 cm in diameter), and the measured hot peel strength is 10 N, then the measured hot peel strength of the test piece is 10 N / 2.54 cm. However, the actual adhesive width is 1.0 cm, so the conversion is 10 N / 1.0 cm = 25.4 N / 2.54 cm. When the multi-dot matrix is ​​irregularly attached into strips, the actual adhesive width is determined by randomly selecting five locations, measuring the actual width occupied by the adhesive in the width direction of the test piece, calculating the average, and then converting accordingly.

[0066] The aforementioned high-temperature washing method at approximately 90°C was performed using the 9N (liquid temperature 92°C) conditions of "JIS L1930:2014 Type A Test Method (Drum Type)" for five washes. After five washes, the fabrics were dried under the high-temperature drum drying conditions described in "JIS L 1096:2020 Test Methods for Woven and Knitted Fabrics 8.39.6 Drying Method" to confirm the presence or absence of peeling.

[0067] In this invention, the elongation rate of the portion where the adhesive is attached in a linear manner in the direction parallel to the linear direction is 50% or more, and the elongation recovery rate is 85% or more. Furthermore, the difference in elongation recovery rate between the portion where the adhesive is attached in a linear manner and the portion where it is attached in a dot matrix manner in the direction parallel to the linear direction is within 10%.

[0068] By ensuring that the elongation rate of the portion where the adhesive is attached in a linear fashion is 50% or more and the elongation recovery rate is 85% or more, excellent wearability and comfort are achieved. From the viewpoint of particularly excellent wearability, an elongation rate of 70% or more for the portion where the adhesive is attached in a linear fashion is preferred. Taking into account ease of wear, an upper limit of 200% is preferably preferred.

[0069] Furthermore, the elongation recovery rate of the parts where the adhesive is attached in a linear fashion is 85% or higher, but preferably 90% or higher. This ensures that it will not stretch or sag even with repeated wear, maintaining excellent wearing comfort. The upper limit is 100%, but in practice it is below 99%.

[0070] The method for determining the elongation and elongation recovery of the linearly attached adhesive portion is based on the B-1 method for testing the elongation modulus of elasticity and residual strain rate of woven and knitted fabrics as described in "JIS L 1096:2020 Test Methods for Woven and Knitted Fabrics". The elongation is determined by creating a hysteresis curve showing the fabric recovering at the same rate after one elongation. The elongation at a maximum stress of 14.7 N and the elongation recovery at a minimum stress of 0 N are calculated as "elongation recovery rate = 1 - residual strain / elongation at maximum stress of 14.7 N". The width of the test piece is not a specified width; only the width of the linearly attached adhesive portion is used for the test. When the numbers in the columns above and below are different, the values ​​in the columns above and below are measured separately, and their average values ​​are referred to as the elongation and elongation recovery rate, respectively. Regarding the method of taking test pieces, in the part where the adhesive is attached in a linear pattern, the linear adhesive on the end side is attached at a distance d1 from the end of the overlapping fabric. Therefore, regarding the end side, the test piece is cut in the same way as the distance d1 between the end of the overlapping fabric and the end of the other test piece. When the part where the linear adhesive is attached in a linear pattern is too close to ensure the distance, the test piece is taken by cutting the middle of the adjacent linear column of the linear adhesive.

[0071] Since the fastening part 2 is composed of portions of the adhesive 10 attached linearly and portions attached in a dot matrix pattern, if the difference in elongation recovery rate in the length direction is large, repeated wearing and removing will cause wrinkles and other aesthetic defects or a deterioration in wearing comfort in the fastening part 2. Therefore, the difference in elongation recovery rate between the portions of the adhesive 10 attached linearly and the portions attached in a dot matrix pattern should be within 10%, preferably within 5%. The preferred lower limit is 0%, but in practice it is more than 2%.

[0072] The method for determining the difference in elongation recovery between the linear and lattice-attached portions of adhesive 10 is based on Test Method A for elongation modulus of elasticity and residual strain rate of woven and knitted fabrics as described in "JIS L1096:2020 Test Methods for Woven and Knitted Fabrics", with a repetition count of no more than 3 times. Since the width of the test piece differs from the specified width, the test is conducted according to the width of the test piece for both the linear and lattice-attached portions of adhesive 10. For example, when the linear attachment portion is 10 mm wide, the lattice-attached portion is also set to a test piece with a width of 10 mm. The elongation recovery rate B1 (%) of the linear attachment portion and the elongation recovery rate B2 (%) of the lattice-attached portion are measured. Then, using the formula B2 - B1 = B0, the difference in elongation recovery rate B0 (%) between the linear and lattice-attached portions is calculated.

[0073] In this invention, among the adhesives attached in multiple rows of three or more columns as described above, the adhesive 10A, which constitutes a linear portion of the adhesive, uses a resin that achieves the elongation or elongation recovery rate specified in this invention, satisfies the aforementioned heat peel strength, and possesses elasticity and heat resistance. The elasticity of the adhesive imparts stretchability to the fixed fabric. Regarding the type of resin, synthetic resins are preferred over natural resins, with reactive resins being more preferred. Particularly preferred are elastic reactive polyurethane resins (reactive PU) or reactive silicone rubbers. Such reactive resins can be selected from commercially available products, such as ND5011 manufactured by Shinfayuan Automation Technology Co., Ltd.

[0074] Furthermore, the resin constituting adhesive 10B is a resin that achieves the aforementioned heat peel strength and has heat resistance. As for the type of resin, synthetic resins are preferred over natural resins, with reactive resins or thermoplastic resins with a softening point temperature of 110°C or higher being more preferred, and reactive resins being even more desirable. Examples include: polyethylene, polypropylene, polytetrafluoroethylene, polyamide, polyacetal, polycarbonate, polyphenylene ether, polyester, polyphenylene sulfide, polysulfone, polyethersulfone, polyetheretherketone, polyimide, polyamide-imide, silicone, etc. Other examples include: resins composed of polymeric compounds, or silicone rubber, butadiene rubber, isoprene rubber, vulcanized rubber, styrene-butadiene rubber, butyl rubber, chlorosulfonated polyethylene rubber, ethylene propylene rubber, vinylidene fluoride copolymer, etc. The same adhesive as adhesive 10A can also be used. The reactive resin preferred for adhesive 10A is also the preferred adhesive for adhesive 10B. In addition, thermoplastic polyurethane resins (thermoplastic PU) that are typically used as hot melt adhesives may have poor heat resistance, but as long as they have heat resistance that meets the hot peel strength requirements of the present invention, they can be used as adhesives 10A and 10B.

[0075] To reduce the shift of the tightening part 2 during wear, it is preferable that the size of the tightening part 2 is about 30% smaller than the human body size, and preferably controlled in such a way that the stress of the tightening part 2 when it stretches by 30% during wear is 3.5 to 6.0 N / 2.54 cm. By keeping the elongation stress at 30% stretch below 6.0 N / 2.54 cm, discomfort caused by strong pressure will not be felt when wearing it, and by setting it above 3.5 N / 2.54 cm, the problem of shifting during wear is less likely to occur. Therefore, it is preferable to suppress the elongation stress within the above range.

[0076] Regarding the method for determining elongation stress, the test method described in "JIS L1096:2020 Test Methods for Woven and Knitted Fabrics" (Test Method A) for elongation modulus of elasticity and residual strain rate of woven and knitted fabrics was used. The elongation rate was measured, and a hysteresis curve with only one elongation / recovery was constructed. The elongation stress at the point where the load was reduced to 30% was then measured. Since the width of the test piece differed from the specified value, the test was conducted with the overlap width of the tightening section in mind. Then, the calculation was performed as follows: "Stress at 30% elongation ÷ Test piece width (cm) × 2.54 (cm)" to calculate the stress at a width of 2.54 cm.

[0077] In this invention, the unit area mass of at least one of the above-mentioned overlapping fabrics or the body fabric of the garment is preferably 80~140 g / m². 2 .

[0078] The method for determining the mass per unit area of ​​fabric is based on the method in "JIS L 1096:2020 Test methods for woven and knitted fabrics 8.3.2 Mass per unit area under standard conditions".

[0079] Regarding the mass per unit area of ​​the aforementioned body fabric or overlapping fabric, for men's underwear, especially in summer when the feeling of stuffiness is a major concern, it is preferable to use a lower mass per unit area to alleviate this feeling, and more preferably, at least one of them should have a mass per unit area of ​​80~140g / m². 2 Fabrics with a unit area mass of 90~130g / m² are particularly preferred. 2 The mass per unit area. A more preferred form is that either the body fabric or the overlapping fabric has the aforementioned mass per unit area.

[0080] When using the aforementioned fabric with a lower mass per unit area as the body fabric or overlapping fabric, in order to further improve the tightening force of the binding part, the mass per unit area of ​​the other fabric is preferably set to be at least equal, or can be set to have 80~180g / m². 2 Fabric mass per unit area.

[0081] To further improve heat peel strength, the degree of adhesive penetration is preferably set as follows. That is, in the cross-section of the overlapping portion, the thickness of the resin-permeable layer A on the side of the "body fabric and the overlapping fabric with relatively lower unit area mass, or the same unit area mass belonging to the body fabric" (A...) is... t The thickness of the resin-permeable layer B on side b of fabrics with relatively high unit area mass or the same unit area mass that are overlapping fabrics (B) t "), and "the thickness of the resin layer C formed by the adhesive (C)" t When the total of ") is set to 100%, option A is preferred. t For 20%~30%, B t 20%~40%, C t The content is 30%~60%. A is particularly preferred. t For 25%~30%, B t 30%~35%, C t It ranges from 35% to 45%.

[0082] Furthermore, the thickness of the resin-permeable layer A (A t ) relative to the thickness of fabric a (a t The ratio of (A) t / a t Preferably, the ratio of the thickness of the resin-permeable layer A to the thickness of the fabric a is 0.2 to 0.6, and more preferably, it is the ratio of A's thickness to the thickness of the fabric a. t / a t The value is 0.4~0.6.

[0083] Regarding the method for measuring the aforementioned thickness, a cross-section of the overlapping portion is cut out, and photographs are taken at 100x magnification using a digital microscope (e.g., the KEYENCE VHX-F series digital microscope). The thickness (length) of each layer is measured and calculated. For the thickness measurement method, the average thickness of the portion of resin penetrating the fabric (the average of the deepest and shallowest penetrations) is defined as the resin penetration layer thickness. For the resin layer, the average thickness of the thickest and thinnest portions is defined as the resin layer thickness. Additionally, when taking samples, portions joined to other components are removed.

[0084] Figure 3 yes Figure 1 The diagram shows a cross-sectional view of the overlapping portion of the garment's tightening section. Fabric a, with a relatively low unit area mass, or garment body fabric a, with the same unit area mass, and overlapping fabric b, with a relatively high unit area mass, or overlapping fabric b, are bonded together using an adhesive. At their interface, a resin layer C formed by the adhesive can be observed between the resin-permeable layer A on the fabric a side and the resin-permeable layer B on the fabric b side.

[0085] The bonding process can be performed using either a pneumatic press or a roller press, with no limitation on the method. Pressure control methods include, but are not limited to, methods using air control, methods using gap control, and methods controlling the pressure applied to the object by changing the material of the roller.

[0086] As described above, by using an adhesive that can achieve the heat peel strength, elongation and elongation recovery rate specified in the present invention, at least the overlap of the garment fabric 4 and the overlapping fabric 5 in the tightening part 2, linear adhesive 10A and dot matrix adhesive 10B are combined, so that even when using materials such as mesh with low mass per unit area, a comfortable and aesthetically pleasing garment can still be provided.

[0087] (Implementation Method 2)

[0088] Figure 4 This is a diagram showing the clothing structure of Embodiment 2. The clothing 11 shown in the same figure is an example of an overcoat, having a constricting portion 12 for holding the wrists and / or a constricting portion 13 for holding the waist. Embodiment 2 can, of course, also achieve the effects of the present invention according to the same idea as Embodiment 1.

[0089] (Implementation Method 3)

[0090] Figure 5 This is a diagram showing the clothing structure of Embodiment 3. The clothing 21 shown in the same figure is an example of trousers, having a waist-cinching portion 22 and / or an ankle-cinching portion 23. Embodiment 3 can, of course, achieve the effects of the present invention by following the same concept as Embodiment 1.

[0091] [Example]

[0092] (Example 1)

[0093] Example 1 is as follows Figure 1 The design shown is for typical men's underwear, using stretchable fabric with a warp count of 55 / 2.54cm, a weft count of 55 / 2.54cm, and a unit area weight of 130g / m². 2 The warp-knitted mesh fabric (nylon 6: 87% by mass, polyurethane: 13% by mass) is used as an overlay fabric with a warp count of 75 / 2.54cm, a weft count of 65 / 2.54cm, and a unit area mass of 150g / m². 2The single-comb warp-knitted fabric (nylon 6: 71% by mass, polyurethane: 29% by mass) is used. Both the body fabric and overlapping fabric are cut longitudinally (warp-wise) to the width of the finished product. The overlapping fabric is positioned as a 3.5cm wide waist section along the waist shape. An elastic, reactive hot-melt polyurethane resin (ND5011 manufactured by Xinfayuan Automation Technology Co., Ltd.) is used. Two rows of adhesive are applied vertically, 0.1cm wide, along the waist circumference. The adhesive closest to the fabric ends is applied at a distance of 2.0mm from each fabric end. The central portion is bonded with 20 rows of 0.1cm diameter dots spaced 0.2cm apart, evenly spaced. The thickness of the resin-penetrated layer A (A...) is relatively low per unit area for the body fabric. t The thickness of the resin-permeable layer B on the side of the overlapping fabric, which has a relatively high mass per unit area (B) t ), and the thickness of the resin layer C formed by the adhesive (C t The ratio of ) becomes A t B t :C t The resin is bonded and pressed using a ratio of 30%:30%:40%. The thickness of the resin-permeable layer A is then determined. t ) and the thickness of the garment fabric (a t The ratio of (A) t / a t The garment of Example 1 was evaluated as 0.4. The evaluation results of Example 1 showed that the stress at the waist, which is part of the binding section, was 4.0 N / 2.54 cm when the waist elongation was 30%; the difference in elongation recovery between the two rows of linear adhesive portions with a width of 0.3 cm and the two rows of dot-matrix adhesive portions with a width of 0.3 cm was 5.0%; and the heat peel strength at 100°C was 7.0 N / 2.54 cm. The composition and evaluation of Example 1 are shown in Table 1.

[0094] (Example 2)

[0095] Example 2 is as follows Figure 1 The design shown is for typical men's underwear, using stretchable fabric with a warp count of 55 / 2.54cm, a weft count of 55 / 2.54cm, and a unit area weight of 130g / m². 2The fabric used is a warp-knitted mesh fabric (Nylon 6: 87% by mass, Polyurethane: 13% by mass). The overlapping fabric uses the same warp-knitted mesh fabric as the garment body. The fabric is cut longitudinally to the width of the finished product. The waist area has a 3.5cm fold width. Elastic reactive hot-melt polyurethane resin (ND5011 manufactured by Xinfayuan Automation Technology Co., Ltd.) is used. Three columns on each side are arranged as straight lines 0.1cm wide along the waist circumference. The adhesive closest to the fabric ends is applied at a distance of 2.0mm from each fabric end. The central portion is bonded with 18 columns spaced 0.2cm apart, with a diameter of 0.1cm, and the columns are evenly spaced. The thickness of the resin penetration layer A of the garment body fabric (A...) t ), the thickness of the resin-permeable layer B on the overlapping fabric side (B t ), and the thickness of the resin layer C formed by the adhesive (C t The ratio of ) becomes A t B t :C t The resin is bonded and pressed using a ratio of 30%:40%:30%. The thickness of the resin-permeable layer A is then determined. t ) and the thickness of the garment fabric (a t The ratio of (A) t / a t The clothing of Example 2 is 0.4. Similarly to Example 1, the composition and evaluation are shown in Table 1.

[0096] (Example 3)

[0097] Example 3 is as follows Figure 4 The design shown is a typical outerwear jacket. The fabric used for the body is stretchy, with a warp count of 65 / 2.54cm, a weft count of 65 / 2.54cm, and a unit area weight of 105g / m². 2 The weft-knitted plain weave fabric (nylon 6: 88% by mass, polyurethane: 12% by mass), with overlapping fabric using 75 / 2.54cm warp loops, 65 / 2.54cm weft loops, and a unit area weight of 150g / m². 2The fabric is a single-comb warp-knitted fabric (nylon 6: 71% by mass, polyurethane: 29% by mass). Both the body fabric and the overlapping fabric are cut longitudinally to the width of the finished product. The overlapping fabric is positioned along the cuff shape, with a width of 1.0 cm. An elastic, reactive hot-melt polyurethane resin (ND5011 manufactured by Xinfayuan Automation Technology Co., Ltd.) is used. One column at the top and one at the bottom are arranged in a straight line 0.1 cm wide around the cuff. The adhesive is applied at a distance of 2.0 mm from each fabric end, and the central portion is bonded with dots spaced 0.2 cm apart in two columns, evenly spaced between columns. The thickness of the resin-penetrated layer A (A...) is relatively low per unit area for the body fabric. t The thickness of the resin-permeable layer B on the side of the overlapping fabric, which has a relatively high mass per unit area (B) t ), and the thickness of the resin layer C formed by the adhesive (C t The ratio of ) becomes A t B t :C t The resin is bonded and pressed using a ratio of 30%:40%:30%. The thickness of the resin-permeable layer A is then determined. t ) and the thickness of the garment fabric (a t The ratio of (A) t / a t The clothing of Example 3 is 0.5. Similar to Example 1, the composition and evaluation are shown in Table 1.

[0098] (Comparative Example 1)

[0099] Comparative Example 1 is as follows Figure 1 The design shown is for typical men's underwear, using stretchable fabric with a warp count of 55 / 2.54cm, a weft count of 55 / 2.54cm, and a unit area weight of 130g / m². 2 The warp-knitted mesh fabric (nylon 6: 87% by mass, polyurethane: 13% by mass) uses an overlapping fabric with 75 warp loops / 2.54cm, 65 weft loops / 2.54cm, and a unit area mass of 150g / m². 2 The fabric is a single-comb warp-knitted fabric (nylon 6: 71% by mass, polyurethane: 29% by mass). Both the body fabric and the overlapping fabric are cut longitudinally to fit the width of the garment. The overlapping fabric is positioned at the waist, 3.5cm wide, following the waistline shape. It uses an elastic, reactive hot-melt polyurethane resin (ND5011 manufactured by Xinfayuan Automation Technology Co., Ltd.) to achieve the desired effect. Figure 6The dot matrix arrangement shown has all 22 columns bonded together along the waistline, with a diameter of 0.1 cm, a dot spacing of 0.2 cm, and adhesive applied to the outermost edge of the fabric at a distance of 4 mm from the fabric edge, with each column evenly spaced. The thickness of the resin-permeable layer A (A) is considered to be relatively low in weight per unit area for the garment fabric. t The thickness of the resin-permeable layer B on the side of the overlapping fabric, which has a relatively high mass per unit area (B) t ), and the thickness of the resin layer C formed by the adhesive (C t The ratio of ) becomes A t B t :C t The resin is bonded and pressed using a ratio of 30%:30%:40%. The thickness of the resin-permeable layer A is then determined. t ) and the thickness of the garment fabric (a t The ratio of (A) t / a t The garment of Comparative Example 1 had a stress of 0.4. Based on the evaluation results of Comparative Example 1, the stress at the waist (the constricting part) with a 30% elongation was 3.0 N / 2.54 cm, and the heat peel strength at 100°C was 7.0 N / 2.54 cm. The composition and evaluation of Comparative Example 1 are shown in Table 1.

[0100] (Comparative Example 2)

[0101] Comparative Example 2 is as follows Figure 1 The design shown is for typical men's underwear, using stretchable fabric with a warp count of 55 / 2.54cm, a weft count of 55 / 2.54cm, and a unit area weight of 130g / m². 2 The warp-knitted mesh fabric (nylon 6: 87% by mass, polyurethane: 13% by mass) uses an overlapping fabric with 75 warp loops / 2.54cm, 65 weft loops / 2.54cm, and a unit area mass of 150g / m². 2 The fabric is a single-comb warp-knitted fabric (nylon 6: 71% by mass, polyurethane: 29% by mass). Both the body fabric and the overlapping fabric are cut longitudinally to fit the width of the garment. The overlapping fabric is positioned at the waist, 3.5cm wide, following the waistline shape. An elastic, reactive hot-melt polyurethane resin (ND5011 manufactured by Xinfayuan Automation Technology Co., Ltd.) is used to form... Figure 6 The dot matrix arrangement shown has all 22 columns arranged along the waistline, in straight lines 0.1 cm wide. The adhesive is applied to the fabric end at a distance of 2.0 mm from the fabric end, and the columns are evenly spaced. The thickness of the resin-permeable layer A (A...) is considered relatively low in weight per unit area for the garment fabric. t The thickness of the resin-permeable layer B on the side of the overlapping fabric, which has a relatively high mass per unit area (B)t ), and the thickness of the resin layer C formed by the adhesive (C t The ratio of ) becomes A t B t :C t The resin is bonded and pressed using a ratio of 30%:30%:40%. The thickness of the resin-permeable layer A is then determined. t ) and the thickness of the garment fabric (a t The ratio of (A) t / a t The clothing of Comparative Example 2 had a stress of 0.4. Based on the evaluation results of Comparative Example 2, the stress at the waist (the constricting part) with a 30% elongation was 7.0 N / 2.54 cm, and the heat peel strength at 100°C was also 7.0 N / 2.54 cm. The composition and evaluation of Comparative Example 2 are shown in Table 1.

[0102] (Comparative Example 3)

[0103] Comparative Example 3 is as follows Figure 1 The design shown is for typical men's underwear, using stretchable fabric with a warp count of 55 / 2.54cm, a weft count of 55 / 2.54cm, and a unit area weight of 130g / m². 2 The warp-knitted mesh fabric (nylon 6: 87% by mass, polyurethane: 13% by mass) uses an overlapping fabric with 75 warp loops / 2.54cm, 65 weft loops / 2.54cm, and a unit area mass of 150g / m². 2 The fabric is a single-comb warp-knitted fabric (nylon 6: 71% by mass, polyurethane: 29% by mass). Both the body fabric and overlapping fabric are cut longitudinally to the width of the finished product. The overlapping fabric is positioned at the waist, 3.5cm wide, following the waistline shape. Thermoplastic hot-melt polyurethane resin (HBFuller EH2000) is used. Two rows of adhesive are applied vertically, 0.1cm wide, along the waistline. The adhesive is applied to the closest vertically to the fabric ends at a distance of 2.0mm from each end. The central portion is bonded using 20 rows with a diameter of 0.1cm, spaced 0.2cm apart, and evenly spaced rows. The thickness of the resin-penetrated layer A (A...) is relatively low in mass per unit area for the body fabric. t The thickness of the resin-permeable layer B on the side of the overlapping fabric, which has a relatively high mass per unit area (B) t ), and the thickness of the resin layer C formed by the adhesive (C t The ratio of ) becomes A t B t :C t The adhesive bonding is performed using a ratio of 30%:30%:40%. The thickness of the resin-permeable layer A is then determined (A...). t ) and the thickness of the garment fabric (at The ratio of (A) t / a t The garment of Comparative Example 3 had a strength of 0.4. Based on the evaluation results of Comparative Example 3, the stress at the waist (part of the constricting section) when elongated by 30% was 5.5 N / 2.54 cm; the difference in elongation recovery between the two rows of linear adhesive portions (0.3 cm wide) and the two rows of dot-matrix adhesive portions (0.3 cm wide) was 11.0%; and the heat peel strength at 100°C was 4.0 N / 2.54 cm. The composition and evaluation of Comparative Example 3 are shown in Table 1.

[0104] (Comparative Example 4)

[0105] Comparative Example 4 is as follows Figure 1 The design shown is for typical men's underwear, using stretchable fabric with a warp count of 55 / 2.54cm, a weft count of 55 / 2.54cm, and a unit area weight of 130g / m². 2 The warp-knitted mesh fabric (nylon 6: 87% by mass, polyurethane: 13% by mass) uses an overlapping fabric with 75 warp loops / 2.54cm, 65 weft loops / 2.54cm, and a unit area mass of 150g / m². 2 The fabric is a single-comb warp-knitted fabric (nylon 6: 71% by mass, polyurethane: 29% by mass). Both the body fabric and overlapping fabric are cut longitudinally to the width of the finished product. The overlapping fabric is positioned at the waist, 3.5cm wide, following the waistline shape. An elastic, reactive hot-melt polyurethane resin (ND5011 manufactured by Xinfayuan Automation Technology Co., Ltd.) is used. Two rows on each side are arranged as straight lines 0.1cm wide along the waist circumference. The adhesive is applied to the straight lines closest to the fabric ends at a distance of 2.0mm from each fabric end. The central portion is bonded using 20 rows with a diameter of 0.1cm, 0.2cm intervals, and evenly spaced rows. The thickness of the resin-penetrated layer A (A...) is relatively low in mass per unit area for the body fabric. t The thickness of the resin-permeable layer B on the side of the overlapping fabric, which has a relatively high mass per unit area (B) t ), and the thickness of the resin layer C formed by the adhesive (C t The ratio of ) becomes A t B t :C t The adhesive bonding is performed using a ratio of 40%:10%:50%. The thickness of the resin-permeable layer A is then determined (A...). t ) and the thickness of the garment fabric (a t The ratio of (A) t / a tThe garment of Comparative Example 4 had a strength of 0.7. Based on the evaluation results of Comparative Example 4, the stress at the waist (part of the constricting section) when elongated by 30% was 4.0 N / 2.54 cm; the difference in elongation recovery between the two rows of linear adhesive portions (0.3 cm wide) and the two rows of dot-matrix adhesive portions (0.3 cm wide) was 4.0%; and the heat peel strength at 100°C was 3.5 N / 2.54 cm. The composition and evaluation of Comparative Example 4 are shown in Table 1.

[0106]

[0107] Explanation of symbols in attached drawings

[0108] 1: Clothing

[0109] 2: Tightening part

[0110] 3: Tightening part

[0111] 4: Clothing fabric

[0112] 5: Overlapping fabric

[0113] 10: Adhesive

[0114] 10A: Adhesive

[0115] 10B: Adhesive

[0116] d1: Distance

[0117] d2: Interval

[0118] d3: Interval

[0119] R: Diameter

[0120] A: Resin-permeable layer on side a of the fabric

[0121] B: Resin-permeable layer on side b of the fabric

[0122] C: Resin layer formed by adhesive

[0123] a: Fabric with relatively low mass per unit area or garment fabric with the same mass per unit area

[0124] b: Fabric with relatively high mass per unit area or overlapping fabric with the same mass per unit area

[0125] 11: Clothing

[0126] 12: Tightening part

[0127] 13: Tightening part

[0128] 21: Clothing

[0129] 22: Tightening part

[0130] 23: Tightening part

Claims

1. A type of garment having a constricting portion that holds the wearer in place at a part of their body. The fastening portion has at least an overlapping portion containing both the garment body fabric and the overlapping fabric. The overlapping fabric is fixed to the garment fabric by an adhesive that is attached in multiple rows of three or more rows parallel to the direction of the tightening force. In the rows of adhesives attached to the overlapping fabric, the rows of adhesives closest to the ends of the fabric parallel to the direction of the tightening force are attached in a linear fashion within 2.0 mm of the ends of the fabric. Of the columns of adhesive attached to the overlapping fabric, the central column of adhesive is attached in a dot matrix pattern. The thermal peel strength of the overlapping portion when heated at 100°C is 5.0 N / 2.54 cm or higher. In the portion where the adhesive is attached in a linear pattern, the elongation rate in the direction parallel to the linear direction is 50% or more and the elongation recovery rate is 85% or more. The difference in elongation recovery rate between the portion where the adhesive is attached in a linear pattern and the portion where it is attached in a dot matrix pattern in the direction parallel to the linear direction is within 10%.

2. The clothing as claimed in claim 1, wherein the adhesive attached in three or more rows is a reactive resin in the linear portion.

3. In the garment as described in claim 1 or 2, the stress at which the tightening part elongates by 30% is 3.5~6.0 N / 2.54 cm.

4. The garment as described in claim 1 or 2, wherein at least one of the body fabric and the overlapping fabric of the overlapping portion has a unit area mass of 80~140g / m². 2 , In the cross-section of the overlapping portion, the thickness A of the resin-permeable layer A on the side of the fabric a belonging to the body fabric (either the fabric with a relatively lower unit area mass or the fabric with the same unit area mass) is... t The thickness of the resin-permeable layer B on side b of fabrics with relatively high unit area mass or fabrics of the same unit area mass that are overlapping fabrics. t The thickness C of the resin layer C formed by the adhesive. t When the total is set to 100%, A t For 20%~30%, B t 20%~40%, C t It ranges from 30% to 60%. The thickness A of the resin permeation layer A t relative to the thickness a of fabric a t The ratio, i.e., A t / a t The value is 0.2~0.6.