Clothing
A multi-row adhesive pattern with reactive resins addresses peeling and comfort issues in clothing fastening parts, ensuring high-temperature durability and comfort through controlled elongation and recovery rates.
Patent Information
- Application Number
- PCT/JP2025/000475
- Authority / Receiving Office
- WO · WO
- Patent Type
- Applications
- Current Assignee / Owner
- Priority Date
- 2024-01-25
- Filing Date
- 2025-01-09
- Publication Date
- 2025-07-31
AI Technical Summary
Clothing fastening parts using thermoplastic resin adhesion face issues with peeling during high-temperature washing, weak stress leading to poor wearing comfort, and difficulty in adjusting elongation characteristics for elasticity.
A multi-row adhesive pattern is applied to clothing, with linear adhesives near the ends and dot-shaped adhesives in the center, using reactive resins with specific thickness ratios and peel strengths to ensure high-temperature durability and comfort.
The solution provides clothing with excellent high-temperature washing durability and improved wearing comfort by maintaining consistent elongation and recovery rates, reducing peeling, and distributing pressure effectively.
Smart Images

Figure JP2025000475_31072025_PF_FP_ABST
Abstract
Description
clothing
[0001] The present invention relates to clothing.
[0002] Conventionally, various techniques have been considered for constructing the tightening parts of clothing that have tightening parts that utilize adhesion, such as a method of adhering a band-shaped rubber, a method of joining two pieces of fabric together and adhering them in the form of dots, tape, or film, and a method of using fabric that does not require edge processing and not joining anything at all.
[0003] For example, Patent Document 1 proposes a garment in which the difference in stress between the joint and the portion parallel to it at 50% elongation is reduced by using dot-shaped adhesive or the like.
[0004] Furthermore, Patent Document 2 proposes a garment in which a stretchable warp knitted belt-like body is adhered to the garment with a thermoplastic resin adhesive film, i.e., hot melt tape, etc., thereby facilitating cutting operations.
[0005] Furthermore, Patent Document 3 proposes a related technology in which stretchable fabric is bonded with adhesive in a discontinuous pattern, such as a zigzag pattern, so that even if a resin with poor stretchability is used, it can conform to the fabric.
[0006] International Publication No. 2021 / 177172 Japanese Patent Application Laid-Open No. 2010-65337 International Publication No. 2014 / 109318
[0007] However, it has been found that clothing with tightening parts bonded with thermoplastic resin, i.e., hot melt resin, has a problem in that the parts bonded in dots, tape, or film form tend to peel off easily during use. When the cause of this problem was investigated, it was found that there was a problem with washing durability, especially high-temperature washing durability.
[0008] Furthermore, in the case of dot-shaped adhesion, the stress on the tightening parts is weak, while in the case of tape or film-type adhesion, the stress is too strong, which causes the garment to be uncomfortable to wear. In the case of zigzag adhesion, it is possible to adjust the fabric's elongation characteristics so as not to change them as much as possible, but it is difficult to impart elasticity to the tightening parts, and if the stress is too strong, the garment is difficult to wear, while if the stress is weak, the tightness becomes poor.
[0009] The present invention has been made in view of the above, and an object of the present invention is to provide clothing that is durable to high-temperature washing and comfortable to wear.
[0010] In order to solve the above-mentioned problems, the garment according to the present invention has the following configuration.
[0011] (1) A garment having tightening parts that are held to a body part of a wearer, wherein the tightening parts have an overlapping part that includes at least a body fabric and an overlapping fabric, the overlapping fabric is fixed to the body fabric with adhesive applied in three or more rows parallel to the direction in which the tightening force is applied, of the rows of adhesive applied to the overlapping fabric, the rows of adhesive closest to each edge of the fabric parallel to the direction in which the tightening force is applied are applied in a line within 2.0 mm from the edge of the fabric, of the rows of adhesive applied to the overlapping fabric, the row of adhesive in the center is applied in a dot pattern, and the hot peel strength when the overlapping part is heated at 100°C is 5.0 N / 2.54 cm or more, (2) A garment in which the area where the adhesive is applied linearly has an elongation rate of 50% or more and an elongation recovery rate of 85% or more in a direction parallel to the linear direction of the adhesive, and the difference in elongation recovery rate in a direction parallel to the linear direction of the area where the adhesive is applied linearly and the area where the adhesive is applied in a dot pattern is within 10%. (3) A garment as set forth in (1) or (2), in which the adhesive in the linear portion of the adhesive applied in three or more multiple rows is a reactive resin. (4) A garment as set forth in (1) or (2), in which the stress at 30% elongation in the tightening portion is 3.5 to 6.0 N / 2.54 cm. (4) The basis weight of at least one of the body fabric and the overlapping fabric of the overlapping portion is 80 to 140 g / m 2 In the cross section of the overlapping portion, the thickness (A) of the resin-impregnated layer A on the fabric a side, which is the fabric with a relatively low basis weight or the body fabric with the same basis weight, of the body fabric and the overlapping fabric t ) and the thickness of the resin impregnated layer B on the fabric b side, which is a relatively high basis weight fabric or a laminated fabric of the same basis weight (B t ) and the thickness of the resin layer C by the adhesive (C t ) is 100%, A t 20% to 30%, B t is 20% to 40%, C tis 30% to 60%, and the thickness of the resin-impregnated layer A (A t ) Fabric thickness (a t ) to the ratio (A t / a t ) is 0.2 to 0.6.
[0012] The present invention makes it possible to provide clothing that is durable to high-temperature washing and comfortable to wear.
[0013] Fig. 1 is a diagram showing the appearance of a garment according to embodiment 1. Fig. 2 is a diagram showing, in schematic form, the overlapping portions of the tightening parts of the garment shown in Fig. 1 and the state in which adhesive has been applied. Fig. 3 is a cross-sectional view of the overlapping portions of the tightening parts of the garment shown in Fig. 1. Fig. 4 is a diagram showing the appearance of a garment according to embodiment 2. Fig. 5 is a diagram showing the appearance of a garment according to embodiment 3. Fig. 6 is a diagram showing, in schematic form, the overlapping portions of the tightening parts of the garment of comparative example 1 and the state in which adhesive has been applied.
[0014] Hereinafter, embodiments of the present invention (hereinafter referred to as "embodiments") will be described with reference to the accompanying drawings. Note that the drawings are merely schematic and are not intended to be limiting.
[0015] (Embodiment 1) The garment of the present invention is a garment having tightening parts that are held to parts of the wearer's body, and the tightening parts have overlapping parts that include at least a body fabric and an overlapping fabric.
[0016] Fig. 1 is a diagram showing the configuration of a garment pertaining to embodiment 1. The garment 1 shown in the figure is an example of men's underwear, and has tightening parts 2 that hold the waist in place. It may also have tightening parts 3 that hold the legs in place.
[0017] In the present invention, the tightening portion refers to a portion with a strong tightening force. In the present invention, the tightening force refers to the elongation stress when worn or when stretched as expected when worn.
[0018] The body fabric 4 of the garment 1 is made of a stretchable fabric. There are no particular limitations on the fabric, as long as the garment defined in the present invention can be obtained. For example, knitted fabrics provided as general clothing materials are not limited, but circular knit and warp knitted materials are preferred because they have stretchability particularly suited to the implementation of the present invention. Furthermore, even among woven fabrics, materials with stretchability for clothing are suitable for the present invention. Furthermore, fabrics used for general underwear, undergarments, cupped innerwear, and outerwear such as T-shirts and cut-and-sewn garments can also be applied, and are not limited thereto.
[0019] The overlapping fabric 5 of the garment 1 is made of a stretchable fabric. There are no particular limitations on the type of fabric used, as long as the garment defined in the present invention can be obtained. For example, while there are no limitations on the type of knitted material provided as a general clothing material, circular knitting and warp knitting materials are preferred because they have stretchability that is particularly suited to the implementation of the present invention. Woven fabrics that are stretchable for clothing are also suitable for the present invention. Furthermore, fabrics used for general underwear, undergarments, cupped innerwear, and outerwear such as T-shirts and cut-and-sewn garments can also be used, and are not limited to these.
[0020] In the present invention, the material of the yarns used for the stretchable fabrics used in the body fabric 4 and the overlapping fabric 5 is not particularly limited, and examples include polyester synthetic fibers such as polyethylene terephthalate, polytrimethylene terephthalate, and polybutylene terephthalate; polyamide synthetic fibers such as nylon; synthetic fibers such as polyacrylonitrile and polypropylene; regenerated fibers such as rayon, polynosic, and cupra; 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; so-called rubber threads made from natural, synthetic, or semi-synthetic rubber; and special fibers made from rubber-covered synthetic fibers. These may be used alone or in combination to suit the required characteristics. Furthermore, the aforementioned fibers may contain additives such as titanium oxide, or polymer-modified fibers may be used to impart functionality. For example, it is preferable to use the above-mentioned polyester synthetic fibers, polyamide synthetic fibers such as nylon, elastic fibers, etc. in combination with the above-mentioned synthetic fibers such as polyacrylonitrile and polypropylene, regenerated fibers, semi-synthetic fibers, natural fibers, etc., in order to combine the properties of different fibers.
[0021] The cross-sectional shape of the single fiber unit is not limited, and various irregular cross-section yarns such as round, triangular, octapous, flat, and Y-shaped yarns can be used. Furthermore, core-sheath or side-by-side composite yarns made of polymers with different viscosities can also be used.
[0022] Furthermore, false twisted yarns obtained by subjecting these fibers to false twisting as raw yarns may also be used.
[0023] Furthermore, the most suitable material can be selected depending on the application.
[0024] In the present invention, the overlapping fabric is fixed to the body fabric by adhesive applied in three or more rows parallel to the direction in which the tightening force acts.
[0025] FIG. 2 is a diagram that schematically shows the overlapping portions of the tightening parts of the garment shown in FIG. 1 and the state in which the adhesive has been applied. More specifically, it is a diagram that schematically shows the state in which the tightening parts 2 and adhesive 10 have been applied to the garment 1 according to embodiment 1, in which a roughly belt-shaped overlapping fabric 5 is overlapped from above in the same shape as the tightening parts 2 that constitute the garment and hold the waist in place. In order to show the state in which the adhesive has been applied, part of the overlapping fabric 5 is omitted. In FIG. 2, the adhesive 10 is applied in five double rows, with each row along the edge of the overlapping fabric 5 (hereinafter referred to as the upper and lower rows) being linearly applied adhesive 10A, and three rows in the center being dot-likely applied adhesive 10B. There are no particular restrictions on the number of linear rows, the number of dot-like rows, or the arrangement of the linear and dot-like rows as long as they satisfy the ranges specified in the present invention, but it is preferable that they be in a form such as the structural pattern of the adhesive 10 described below.
[0026] In the present invention, the width of the overlapping portion is preferably 10 to 100 mm, more preferably in the range of 30 mm to 40 mm, in order to avoid dispersing or concentrating the pressure of the tightening portion. In Figure 2, the width of the overlapping portion is configured to be 30 mm. Note that the width of the overlapping portion refers to the dimension in the direction perpendicular to the direction in which the tightening force is applied, for example, the dimension in the length direction of the tightening portion 2 in Figure 1, in other words, the dimension in the direction perpendicular to the circumference of the waist.
[0027] In the present invention, "overlapping" may refer to a state in which the body fabric constituting the garment is folded in half, or may refer to a state in which another part is overlapped on the tightening portion. When other parts are overlapped, the same fabric as the body may be used, or a different fabric may be used. In the present invention, the overlapping portion refers to the above-mentioned overlapping portion, and its end portion, when the body fabric is folded in half to form the overlapping portion, corresponds to the end portion where one end forms the fold peak, and the end portion where the other end is folded back corresponds to the end portion of the overlapping portion. Furthermore, when overlapping fabric, which is another part, is overlapped, when this overlapping fabric is overlapped, it corresponds to two end portions along the direction in which the tightening force is applied (the circumferential direction of the waist in the tightening portion 2 in Figure 1). Note that in Figure 2, the upper end of the body fabric 4 and the end portion of the overlapping fabric are offset, but they may also be aligned. It is sufficient to provide them in the position where the tightening force is desired to be applied.
[0028] In the present invention, of the rows of adhesive applied to the overlapping fabric 5, the rows of adhesive closest to each end of the fabric parallel to the direction in which the tightening force acts are applied in a linear fashion within 2.0 mm from the end of the fabric, and of the rows of adhesive applied to the overlapping fabric, the rows of adhesive in the center are applied in a dotted fashion.
[0029] In the present invention, the number of linear rows is one or more on the top and bottom, and more preferably two or more in order to distribute the pressure. From the viewpoint of the balance of the tightening force, it is preferable that the number of linear rows on the top and bottom be the same, but this may be changed as appropriate depending on the type of tightening force required.
[0030] The width (the dimension perpendicular to the direction in which the tightening force is applied) of the adhesive applied in a line (hereinafter referred to as the linear adhesive) is preferably 0.5 to 10.0 mm, and more preferably 0.7 to 2.0 mm in order to control the tightening force so that it is not too strong while maintaining adhesive strength. For example, in Figure 2, the linear adhesive 10A in one row at the top and bottom is configured with a width of 1.0 mm.
[0031] As shown in Figure 2, adhesive 10 is arranged in one or more linear rows at the top and bottom, and in a dotted row in the center, along the edge of the overlapping fabric 5 of the tightening portion 2. If the distance d1 between the edge of the overlapping fabric 5 and the top and bottom rows of adhesive 10 becomes large, the edge of the fabric becomes a free edge when overlapped, which is likely to cause problems such as curling. Therefore, the distance d1 from the edge of the fabric to the row of adhesive is within 2.0 mm, and preferably within 0.5 to 1.0 mm.
[0032] As described above, the structural pattern of the adhesive 10 in the tightening portions 2 is linear in the longitudinal direction of the tightening portions 2 (the direction in which the tightening force is applied), with the top and bottom rows being linear and the central portion being dotted. A linear shape indicates that the adhesive 10A is connected in a solid line, excluding dashed and dotted lines. The linear shape may be straight, wavy, zigzag, or other shapes as long as it satisfies the range specified in the present invention, but in order to efficiently impart the elasticity of the adhesive 10A, a linear shape that runs along the longitudinal direction of the tightening portions 2 (the direction along the fabric edges of the overlapping portions; for example, the circumferential direction of the waist portion in FIG. 1) is preferred. Furthermore, the number of upper and lower rows is not limited as long as there is at least one row for each; for example, of a total of 12 rows, the top six rows and the bottom five rows may be linear, with the sixth row from the bottom being dotted.
[0033] In the present invention, the central portion does not necessarily have to be the exact center between the upper and lower linear adhesives, but refers to the region sandwiched between the uppermost and lowermost rows of linear adhesives or between the uppermost and lowermost rows and one or more adjacent rows of linear adhesives, and if adhesive is applied in dot form within that region, it can be considered that adhesive is applied in dot form in the central portion. As long as the range specified in the present invention is satisfied, there is no restriction on the number of each row, and it can be determined appropriately depending on the desired fastening force.
[0034] Furthermore, it is preferable that the spacing d3 between the rows is uniform as a configuration pattern of the adhesive 10. More specifically, it does not need to be strictly uniform, and it is considered uniform if the difference between the largest spacing d3 between the rows to which the adhesive is applied in the tightening portion 2 and the smallest spacing is within 10%.
[0035] In the present invention, the row of adhesive applied in dots in the center (hereinafter referred to as dot adhesive) may be a strip-like row formed by applying a plurality of dots irregularly, or the dots may be regularly arranged in a single dotted row, although from the viewpoint of production efficiency, it is preferable to arrange the dots regularly in a single dotted row.
[0036] The diameter of the central adhesive dots is preferably 0.5 to 10.0 mm. In particular, from the viewpoint of fully utilizing the extensibility of the fabric, a diameter of 2.0 mm or less is preferable, and 1.0 mm or less is even more preferable. Note that the diameter here refers to the equivalent circle diameter when the dot shape is non-circular. For example, in Figure 2, the adhesive dots 10B are configured with a diameter of 1.0 mm.
[0037] In the case of a single row of dot-shaped adhesives, the spacing d2 between dots is preferably 0.1 to 50.0 mm, and is preferably uniform in the longitudinal direction, i.e., the direction parallel to the linear direction of the dots. More specifically, it does not need to be strictly uniform; the spacing d2 between adjacent dots is considered uniform if the difference between the largest spacing and the smallest spacing d2 is within 10%. The spacing between dots refers to the distance from the center of a dot to the center of the adjacent dot. For example, in Figure 2, the spacing between two adjacent dot-shaped adhesives 10B in the same row is 2.0 mm. Furthermore, if the spacing d2 is too wide compared to the diameter of the dot-shaped adhesives 10B, the unevenness of the garment when worn becomes more pronounced, potentially reducing comfort and appearance. Therefore, when the diameter R of the dot-shaped adhesives 10B is concerned, it is preferable that 1.5 x R ≦ d2 < 4 x R.
[0038] In the first embodiment, the adhesive 10B applied in a dot pattern is circular, but is not limited to this as long as it satisfies the range defined by the present invention. Any shape may be used as long as it allows the adhesive to be repeatedly applied in a separated state so that the spacing between the adhesives can be changed, and it may be a dashed line shape, a geometric shape, or a combination of these shapes.
[0039] In the present invention, the hot peel strength when the overlapping portion is heated at 100° C. is 5.0 N / 2.54 cm or more.
[0040] The resin that makes up the adhesive 10 has a hot peel strength of 5.0 N / 2.54 cm or more when the overlapping portion is heated to 100°C. It was discovered that the problem of peeling during consumer use, a conventional issue, is primarily caused by the kneading and peeling forces during repeated high-temperature treatments such as washing and tumble drying. To solve this problem, the resin has a hot peel strength of 5.0 N / 2.54 cm or more when the overlapping portion is heated to 100°C. If the peel strength is less than 5.0 N / 2.54 cm, peeling occurs during high-temperature washing and tumble drying at around 90°C, as is common in Europe and elsewhere. If the peel strength is 5.0 N / 2.54 cm or more, peeling can be prevented even when high-temperature treatment at around 90°C is performed. One way to increase the peel strength is to increase the hardness of the resin, but because increasing the hardness too much can affect the elongation rate, a hardness of 6.0 to 40.0 N / 2.54 cm is preferred.
[0041] The hot peel strength is measured using a tensile tester and a thermostatic chamber, such as Shimadzu Corporation's AGS-5kNX tabletop precision universal testing machine and TCE-N300A thermostatic chamber, while heating at 100°C. The test is performed in accordance with the method described in "JIS L1086:2020 Test Method for Adhesive Interlinings and Adhesive Fabrics." The method of measuring while heating at 100°C involves setting the test piece in the tensile tester inside the thermostatic chamber after the temperature in the thermostatic chamber has stabilized at 100°C, closing the thermostatic chamber, and then stabilizing the temperature at 100°C again (approximately 2 minutes after setting the test piece). Note that, since the portions to be evaluated in this invention are linear and dot-shaped adhesives, the converted width of the peel strength is converted to the actual adhesive width. For example, if a test piece has a width of 2.54 cm, two rows of 0.1 cm wide linear bonds, and eight rows of 0.1 cm diameter dot bonds, and the measured hot peel strength is 10 N, the measured hot peel strength of the test piece is 10 N / 2.54 cm, but since the actual bond width is 1.0 cm, it is converted to 10 N / 1.0 cm = 25.4 N / 2.54 cm. When multiple dots are attached irregularly to form band-like rows, the actual bond width is measured by measuring the actual width of the adhesive in the width direction of the test piece at five random locations, calculating the average, and using this as the basis for conversion.
[0042] The high-temperature washing method of about 90°C is performed using the 9N (liquid temperature 92°C) conditions of "JIS L1930:2014 Type A Test Method (Drum Type)" and washing is carried out five times. After five washes, the garment is dried under the high-temperature tumble drying conditions described in "JIS L 1096:2020 Fabric Test Method for Woven and Knit Fabrics 8.39.6 Drying Method" and the presence or absence of peeling is checked.
[0043] In the present invention, the elongation rate in the direction parallel to the linear direction of the area where the adhesive is applied linearly is 50% or more, and the elongation recovery rate is 85% or more, and the difference in the elongation recovery rate in the direction parallel to the linear direction of the area where the adhesive is applied linearly and the area where the adhesive is applied in a dot pattern is within 10%.
[0044] The stretch rate of the linearly applied adhesive portion is 50% or more, and the stretch recovery rate is 85% or more, which results in excellent ease of putting on and taking off, and excellent comfort. It is particularly preferable that the stretch rate of the linearly applied adhesive portion is 70% or more, as this provides particularly excellent ease of putting on and taking off. The upper limit is preferably 200% or less, taking into consideration ease of putting on and taking off.
[0045] The stretch recovery rate of the area where the adhesive is applied linearly is 85% or more, preferably 90% or more. This prevents the garment from stretching and sagging even after repeated wearing, ensuring excellent comfort. The upper limit is 100%, but in reality it is 99% or less.
[0046] The elongation rate and elongation recovery rate of the area where the adhesive is applied linearly are measured in accordance with the test method for the elongation modulus and residual strain rate test B-1 for woven and knitted fabrics described in "JIS L1096:2020 Fabric Testing Methods for Woven and Knit Fabrics." After one elongation, a hysteresis curve is created by recovering at the same speed, and the elongation rate at a maximum stress of 14.7 N and the minimum stress of 0 N are measured as "elongation recovery rate = 1 - residual strain amount / elongation amount at a maximum stress of 14.7 N." The test is performed using only the width of the test piece where the adhesive is applied linearly, rather than the specified width. If the number of rows in the upper and lower rows is different, the upper and lower rows are measured separately, and the average values are called the elongation rate and elongation recovery rate, respectively. The method for collecting test pieces is such that, in the area where the adhesive is applied in a line, the linear adhesive on the end side is applied at a position the distance d1 from the end of the overlapping fabric, so that the end side of the test piece is the end of the overlapping fabric, and the other end of the test piece is the same distance d1 from the linear adhesive adjacent to the dot; if the area where the adhesive is applied in a dot pattern is too close and this distance cannot be secured, the test piece is collected by cutting so that the middle of the adjacent dot row is the end of the test piece.
[0047] Since the tightening portions 2 are made up of areas where the adhesive 10 is applied linearly and areas where it is applied in a dot pattern, if there is a large difference in the stretch recovery rate in the longitudinal direction, repeated putting on and taking off will lead to poor appearance such as waving in the tightening portions 2 and a worse wearing comfort, so the difference in stretch recovery rate between the areas where the adhesive 10 is applied linearly and the areas where it is applied in a dot pattern is within 10%, and preferably within 5%. The preferred lower limit is 0%, but in reality it is 2% or more.
[0048] The difference in elongation recovery rate between the area where the adhesive 10 is applied linearly and the area where it is applied dot-like is measured by conducting a test in accordance with Method A of the Elongation Modulus and Residual Strain Rate Test for Woven and Knit Fabrics, as described in "JIS L1096:2020 Fabric Test Methods for Woven and Knit Fabrics," with the number of repetitions limited to three. Because the width of the test specimen differs from the standard, the test is conducted by matching the width of the test specimens where the adhesive 10 is applied linearly and where it is applied dot-like. For example, if the area where the adhesive 10 is applied linearly is 10 mm, the area where the adhesive is applied dot-like is also made into a 10 mm-wide test specimen, and the elongation recovery rate B1 (%) of the area where the adhesive is applied linearly and the elongation recovery rate B2 (%) of the area where the adhesive is applied dot-like are measured. The difference in elongation recovery rate B0 (%) between the area where the adhesive is applied linearly and the area where the adhesive is applied dot-like is calculated using the formula B2 - B1 = B0.
[0049] In the present invention, the adhesive constituting the linear portion of the adhesive 10A, which is the adhesive applied in three or more rows, is an elastic and heat-resistant resin that can achieve the elongation rate and elongation recovery rate specified in the present invention and the hot peel strength described above. The elasticity of the adhesive allows the fabric to be stretched after bonding. Synthetic resins are preferred over natural resins, and reactive resins are more preferred. Among these, it is preferable to use elastic reactive polyurethane resins (reactive PU) or reactive silicone rubber. Such reactive resins can be selected from commercially available products, such as ND5011 manufactured by Xinhuayuan Automation Technology Co., Ltd.
[0050] Furthermore, the resin constituting adhesive 10B is a heat-resistant resin capable of achieving the above-mentioned hot peel strength. As for the type of resin, synthetic resins are preferable to natural resins. Among them, reactive resins or thermoplastic resins with a high softening point temperature of 110°C or higher are more preferable, and reactive resins are even more preferable. Examples include polyethylene, polypropylene, polytetrafluoroethylene, polyamide, polyacetal, polycarbonate, polyphenylene ether, polyester, polyphenylene sulfide, polysulfone, polyethersulfone, polyetheretherketone, polyimide, polyamideimide, and silicone, as well as polymer compounds, silicone rubber, butadiene rubber, isoprene rubber, vulcanized rubber, styrene-butadiene rubber, butyl rubber, chlorosulfonated polyethylene rubber, ethylene-propylene rubber, and vinylidene fluoride copolymer. The same adhesive as adhesive 10A may be used. The reactive resins preferably used as adhesive 10A are also preferably used as adhesive 10B. Although thermoplastic polyurethane resin (thermoplastic PU) used as a typical hot melt adhesive has poor heat resistance, it can be used for adhesives 10A and 10B as long as it has heat resistance that satisfies the hot peel strength of the present invention.
[0051] In order to reduce slippage when worn, it is preferable that the dimensions of the tightening portions 2 are approximately 30% smaller than the dimensions of the human body, and it is also preferable to control the stress of the tightening portions 2 at 30% elongation, which is equivalent to when worn, to be 3.5 to 6.0 N / 2.54 cm. By making the elongation stress at 30% elongation 6.0 N / 2.54 cm or less, discomfort caused by a strong feeling of pressure when worn will not be caused, and by making it 3.5 N / 2.54 cm or more, the problem of slippage when worn will be less likely to occur, so it is preferable to keep the elongation stress within the above range.
[0052] The method for measuring the tensile stress was to measure the elongation rate in accordance with the test method based on Test Method A for Elongation Modulus and Residual Strain Rate for woven and knitted fabrics described in "JIS L1096:2020 Fabric Testing Methods for Woven and Knit Fabrics," to generate a hysteresis curve for only one extension / recovery, and then measure the tensile stress at 30% elongation upon unloading. Because the width of the test piece was different from the standard, the test was conducted according to the width of the overlapping part of the tightening part, and then the stress at a width of 2.54 cm was calculated by "measured stress at 30% elongation ÷ test piece width (cm) × 2.54 (cm)."
[0053] In the present invention, the basis weight of at least one of the body fabric and the overlapping fabric of the overlapping portion is 80 to 140 g / m 2 It is preferable that:
[0054] The method for measuring the basis weight of the fabric shall be in accordance with "JIS L 1096:2020 Fabric test methods for woven and knitted fabrics 8.3.2 Mass per unit area under standard conditions."
[0055] Regarding the basis weight of the body fabric or the overlapping fabric, in men's underwear, stuffiness can be a concern especially in the summer, so it is preferable to use a fabric with a lower basis weight to eliminate the stuffiness, and at least one of them should have a basis weight of 80 to 140 g / m 2 It is more preferable to use a fabric having a basis weight of 90 to 130 g / m 2 It is particularly preferable that both the body fabric and the overlapping fabric have the above-mentioned basis weight.
[0056] When a fabric with a lower basis weight is used as the body fabric or the overlapping fabric, the basis weight of the other fabric is preferably equal to or higher than the body fabric in order to further increase the tightening force in the tightening portion, and is preferably 80 to 180 g / m 2 It is also acceptable to use a fabric having a basis weight of 1000 or more.
[0057] In order to further increase the hot peel strength, it is preferable to make the penetration of the adhesive as follows. That is, in the cross section of the overlapping portion, the thickness of the resin-impregnated layer A on the fabric a side, which is the fabric with a relatively low basis weight or the body fabric with the same basis weight as the overlapping fabric (A t ) and the thickness of the resin impregnated layer B on the fabric b side, which is a relatively high basis weight fabric or a laminated fabric of the same basis weight (B t ) and the thickness of the resin layer C by the adhesive (C t ) is 100%, A t 20% to 30%, B t is 20% to 40%, C t It is preferable that A is 30% to 60%. t 25% to 30%, B t is 30% to 35%, C t It is more preferable that the ratio is 35% to 45%.
[0058] In addition, the thickness of the resin permeation layer A (A t ) Fabric thickness (a t ) to the ratio (A t / a t ) is preferably 0.2 to 0.6, and more preferably, the ratio of the thickness of the resin-impregnated layer A to the thickness of the fabric a (A t / a t ) is 0.4 to 0.6.
[0059] To measure the thickness, a cross section of the overlapping portion is cut and imaged at 100x magnification using a digital microscope (for example, a KEYENCE VHX-F series digital microscope), and the thickness (length) of each layer is measured and calculated. The thickness is measured by taking the average thickness of the portion where the resin has permeated the fabric (the average of the most permeated portion and the least permeated portion), and the resin layer thickness is the average of the thickest and thinnest portions of the resin layer. When taking samples, exclude the portions joined to other members.
[0060] Figure 3 is a cross-sectional view of the overlapping portion of the tightening portion of the garment shown in Figure 1. A body fabric a having a relatively low basis weight or the same basis weight and a body fabric b having a relatively high basis weight or the same basis weight are bonded together with an adhesive, and at the interface between them, a resin layer C formed by the adhesive can be observed between the resin permeation layer A on the fabric a side and the resin permeation layer B on the fabric b side.
[0061] The bonding method may be, but is not limited to, a method of applying heat and pressure using a cylinder press or a method of applying heat and pressure using a mangle roller. Methods of controlling pressure include, but are not limited to, air control, clearance control, and even a method of controlling the pressure applied to the object by changing the material of the mangle.
[0062] As described above, by using an adhesive that can achieve the hot peel strength, elongation rate, and elongation recovery rate specified in the present invention for the overlapping portion of the tightening portion 2 that includes at least the body fabric 4 and the overlapping fabric 5, and by combining linear adhesion 10A and dot-like adhesion 10B, it is possible to provide clothing that is comfortable to wear and looks good, even when using a material such as mesh with a low basis weight, for example.
[0063] (Embodiment 2) Fig. 4 is a diagram showing the configuration of a garment according to embodiment 2. The garment 11 shown in the figure is an example of an upper garment, and has tightening portions 12 that hold the wrists and / or tightening portions 13 that hold the waist. It goes without saying that the effects of the present invention can be obtained in embodiment 2 using the same concept as in embodiment 1. (Embodiment 3) Fig. 5 is a diagram showing the configuration of a garment according to embodiment 3. The garment 21 shown in the figure is an example of a lower garment, and has tightening portions 22 that hold the waist and / or tightening portions 23 that hold the ankles. It goes without saying that the effects of the present invention can be obtained in embodiment 3 using the same concept as in embodiment 1.
[0064] Example 1 In Example 1, a typical men's underwear design as shown in FIG. 1 is used, and the body fabric has a stretchable wale count of 55 / 2.54 cm, a course count of 55 / 2.54 cm, and a basis weight of 130 g / m 2The warp knitted mesh fabric (nylon 6 87% by mass, polyurethane 13% by mass) is used, and the overlapping fabric has a wale count of 75 / 2.54 cm, a course count of 65 / 2.54 cm, and a basis weight of 150 g / m 2 A warp knit Denbigh fabric (71% by mass of nylon 6, 29% by mass of polyurethane) was used, and both the body fabric and the overlapping fabric were cut with the warp direction of the fabric as the width direction of the product. The overlapping fabric was made into a 3.5 cm wide waist part that followed the waist shape. Elastic reactive hot melt polyurethane resin (ND5011 manufactured by Xinhua Gen Automation Technology Co., Ltd.) was used, and two rows on the top and bottom were made into 0.1 cm wide straight lines that followed the circumferential direction of the waist. The linear adhesive closest to the fabric edge was applied so that it was positioned 2.0 mm from each fabric edge. The central part was bonded in 20 rows of 0.1 cm diameter dots spaced 0.2 cm apart and evenly spaced between each row. The thickness (A t ) and the thickness of the resin impregnated layer B on the overlapping fabric side, which has a relatively high basis weight (B t ) and the thickness of the resin layer C by the adhesive (C t ) ratio is A t : B t : C t The adhesive pressing was performed so that the thickness of the resin permeated layer A (A t ) and body fabric thickness (a t ) ratio (A t / a t A garment of Example 1 was obtained in which the stress at 30% elongation in the waist, which is the tightening portion, was 4.0 N / 2.54 cm, the difference in elongation recovery rate between the 0.3 cm wide two-row linear bonded portion and the 0.3 cm wide two-row dot-pattern bonded portion was 5.0%, and the hot peel strength when heated to 100°C was 7.0 N / 2.54 cm. The configuration and evaluation of Example 1 are shown in Table 1.
[0065] (Example 2) In Example 2, in a general men's underwear design as shown in FIG. 1, the body fabric has a stretchable wale count of 55 / 2.54 cm, a course count of 55 / 2.54 cm, and a basis weight of 130 g / m 2The overlapping fabric was the same warp knitted mesh fabric as the body fabric, with the warp direction of the fabric cut to the width direction of the product, and the waist area had a 3.5 cm wide folded-back structure. Elastic reactive hot melt polyurethane resin (ND5011 manufactured by Xinhua Gen Automation Technology Co., Ltd.) was used, with three rows on each of the top and bottom in straight lines of 0.1 cm width along the circumferential direction of the waist, and the linear adhesive closest to the edge of the fabric was applied so as to be positioned 2.0 mm from each edge of the fabric. The central area was bonded in 18 rows of 0.1 cm diameter dots spaced 0.2 cm apart and evenly spaced between each row. The thickness of the resin penetration layer A of the body fabric (A t ) and the thickness of the resin impregnated layer B on the overlapping fabric side (B t ) and the thickness of the resin layer C by the adhesive (C t ) ratio is A t : B t : C t The adhesive pressing was performed so that the thickness of the resin permeation layer A (A t ) and body fabric thickness (a t ) ratio (A t / a t As in Example 1, the composition and evaluation are shown in Table 1.
[0066] (Example 3) In Example 3, in a general jacket design as shown in FIG. 4, the body fabric has a stretchable wale count of 65 / 2.54 cm, a course count of 65 / 2.54 cm, and a basis weight of 105 g / m 2 The weft knitted jersey fabric (nylon 6 88% by mass, polyurethane 12% by mass) is used, and the layered fabric has a wale count of 75 / 2.54 cm, a course count of 65 / 2.54 cm, and a basis weight of 150 g / m 2A warp knit Denbigh fabric (71% by mass of nylon 6, 29% by mass of polyurethane) was used, and both the body fabric and the overlapping fabric were cut with the vertical direction of the fabric as the length direction of the product. The overlapping fabric was made into 1.0 cm wide cuff parts that followed the shape of the cuff. Elastic reactive hot melt polyurethane resin (ND5011 manufactured by Xinhua Gen Automation Technology Co., Ltd.) was used, and one row on each of the top and bottom was made into a 0.1 cm wide straight line that ran along the circumferential direction of the cuff. The linear adhesive was applied so that it was positioned 2.0 mm from each edge of the fabric, and the center part was bonded in two rows of 0.1 cm diameter dots spaced 0.2 cm apart, with each row evenly spaced. The thickness (A t ) and the thickness of the resin impregnated layer B on the overlapping fabric side, which has a relatively high basis weight (B t ) and the thickness of the resin layer C by the adhesive (C t ) ratio is A t : B t : C t The adhesive pressing was performed so that the thickness of the resin permeation layer A (A t ) and body fabric thickness (a t ) ratio (A t / a t As in Example 1, the composition and evaluation are shown in Table 1.
[0067] Comparative Example 1 Comparative Example 1 is a typical men's underwear design as shown in FIG. 1, in which the body fabric has a stretchable wale count of 55 / 2.54 cm, a course count of 55 / 2.54 cm, and a basis weight of 130 g / m 2 The warp knitted mesh fabric (nylon 6 87% by mass, polyurethane 13% by mass) is used, and the overlapping fabric has a wale count of 75 / 2.54 cm, a course count of 65 / 2.54 cm, and a basis weight of 150 g / m 2A warp knit Denbigh fabric (71% by mass of nylon 6, 29% by mass of polyurethane) was used, and both the body fabric and the overlapping fabric were cut with the warp direction of the fabric as the width direction of the product. The overlapping fabric was cut into a 3.5 cm wide waist part that followed the waist shape. Elastic reactive hot melt polyurethane resin (ND5011 manufactured by Xinhua Gen Automation Technology Co., Ltd.) was used, and the dots were arranged as shown in Figure 6, with a total of 22 rows of 0.1 cm diameter dots spaced 0.2 cm along the circumferential direction of the waist, with the adhesive applied 4 mm from the edge of the fabric, and the rows were evenly spaced apart. The thickness (A t ) and the thickness of the resin impregnated layer B on the overlapping fabric side, which has a relatively high basis weight (B t ) and a resin layer C (C t ) thickness ratio is A t : B t : C t The adhesive pressing was performed so that the thickness of the resin permeated layer A (A t ) and body fabric thickness (a t ) ratio (A t / a t A garment of Comparative Example 1 was obtained in which the stress at 30% elongation in the waist, which is the tightening portion, was 3.0 N / 2.54 cm, and the hot peel strength at 100°C was 7.0 N / 2.54 cm. The configuration and evaluation of Comparative Example 1 are shown in Table 1.
[0068] Comparative Example 2 Comparative Example 2 is a typical men's underwear design as shown in FIG. 1, in which the body fabric has a stretchable wale count of 55 / 2.54 cm, a course count of 55 / 2.54 cm, and a basis weight of 130 g / m 2 The warp knitted mesh fabric (nylon 6 87% by mass, polyurethane 13% by mass) is used, and the overlapping fabric has a wale count of 75 / 2.54 cm, a course count of 65 / 2.54 cm, and a basis weight of 150 g / m 2A warp knit Denbigh fabric (71% by mass of nylon 6, 29% by mass of polyurethane) was used, and both the body fabric and the overlapping fabric were cut with the warp direction of the fabric as the width direction of the product. The overlapping fabric was cut into a 3.5 cm wide waist part that conformed to the waist shape. Elastic reactive hot melt polyurethane resin (ND5011 manufactured by Xinhua Gen Automation Technology Co., Ltd.) was used, and adhesive was applied in a dot arrangement as shown in Figure 6 in a total of 22 rows along the circumferential direction of the waist, in straight lines of 0.1 cm width, with the adhesive on the outermost edge of the fabric positioned 2.0 mm from the edge of the fabric, and the rows were bonded in an even arrangement. The thickness (A t ) and the thickness of the resin impregnated layer B on the overlapping fabric side, which has a relatively high basis weight (B t ) and the thickness of the resin layer C by the adhesive (C t ) ratio is A t : B t : C t The adhesive pressing was performed so that the thickness of the resin permeated layer A (A t ) and body fabric thickness (a t ) ratio (A t / a t A garment of Comparative Example 2 was obtained in which the stress at 30% elongation in the waist, which is the tightening portion, was 7.0 N / 2.54 cm, and the hot peel strength when heated to 100°C was 7.0 N / 2.54 cm. The configuration and evaluation of Comparative Example 2 are shown in Table 1.
[0069] Comparative Example 3 Comparative Example 3 is a typical men's underwear design as shown in FIG. 1, in which the body fabric has a stretchable wale count of 55 / 2.54 cm, a course count of 55 / 2.54 cm, and a basis weight of 130 g / m 2 The warp knitted mesh fabric (nylon 6 87% by mass, polyurethane 13% by mass) is used, and the overlapping fabric has a wale count of 75 / 2.54 cm, a course count of 65 / 2.54 cm, and a basis weight of 150 g / m 2A warp knit Denbigh fabric (71% by mass of nylon 6, 29% by mass of polyurethane) was used, and both the body fabric and the overlapping fabric were cut with the warp direction of the fabric as the width direction of the product. The overlapping fabric was made into a 3.5 cm wide waist part that followed the waist shape. Thermoplastic hot melt polyurethane resin (EH2000 manufactured by H.B. Fuller) was used, and two rows, top and bottom, were made into 0.1 cm wide straight lines along the circumferential direction of the waist. The linear adhesive closest to the fabric edge was applied 2.0 mm from each fabric edge, and the central part was bonded with 20 rows of 0.1 cm diameter dots spaced 0.2 cm apart and evenly spaced between each row. The thickness (A t ) and the thickness of the resin impregnated layer B on the overlapping fabric side, which has a relatively high basis weight (B t ) and the thickness of the resin layer C by the adhesive (C t ) ratio is A t : B t : C t The adhesive pressing was performed so that the thickness of the resin permeated layer A (A t ) and body fabric thickness (a t ) ratio (A t / a t A garment of Comparative Example 3 was obtained in which the stress at 30% elongation in the waist, which is the tightening portion, was 5.5 N / 2.54 cm, the difference in elongation recovery rate between the 0.3 cm wide two-row linear bonded portion and the 0.3 cm wide two-row dot-pattern bonded portion was 11.0%, and the hot peel strength when heated to 100°C was 4.0 N / 2.54 cm. The configuration and evaluation of Comparative Example 3 are shown in Table 1.
[0070] Comparative Example 4 Comparative Example 4 is a typical men's underwear design as shown in FIG. 1, in which the body fabric has a stretchable wale count of 55 / 2.54 cm, a course count of 55 / 2.54 cm, and a basis weight of 130 g / m 2 The warp knitted mesh fabric (nylon 6 87% by mass, polyurethane 13% by mass) is used, and the overlapping fabric has a wale count of 75 / 2.54 cm, a course count of 65 / 2.54 cm, and a basis weight of 150 g / m 2A warp knit Denbigh fabric (71% by mass of nylon 6, 29% by mass of polyurethane) was used, and both the body fabric and the overlapping fabric were cut with the warp direction of the fabric as the width direction of the product. The overlapping fabric was made into a 3.5 cm wide waist part that followed the waist shape. Elastic reactive hot melt polyurethane resin (ND5011 manufactured by Xinhua Gen Automation Technology Co., Ltd.) was used, and two rows on the top and bottom were made into 0.1 cm wide straight lines that ran along the circumferential direction of the waist. The linear adhesive closest to the fabric edge was applied 2.0 mm from each fabric edge, and the central part was bonded in 20 rows of 0.1 cm diameter dots spaced 0.2 cm apart and evenly spaced between each row. The thickness (A t ) and the thickness of the resin impregnated layer B on the overlapping fabric side, which has a relatively high basis weight (B t ) and the thickness of the resin layer C by the adhesive (C t ) ratio is A t : B t : C t The adhesive pressing was performed so that the thickness of the resin permeated layer A (A t ) and body fabric thickness (a t ) ratio (A t / a t A garment of Comparative Example 4 was obtained in which the stress at 30% elongation in the waist, which is the tightening portion, was 4.0 N / 2.54 cm, the difference in elongation recovery rate between the 0.3 cm wide two-row linear bonded portion and the 0.3 cm wide two-row dot-pattern bonded portion was 4.0%, and the hot peel strength when heated to 100°C was 3.5 N / 2.54 cm. The configuration and evaluation of Comparative Example 4 are shown in Table 1.
[0071]
[0072] DESCRIPTION OF SYMBOLS 1 Clothing 2 Tightening portion 3 Tightening portion 4 Body fabric 5 Overlapping fabric 10 Adhesive 10A Adhesive 10B Adhesive d1 Distance d2 Spacing d3 Spacing R Diameter A Resin impregnated layer on fabric a side B Resin impregnated layer on fabric b side C Resin layer by adhesive a Fabric with a relatively low basis weight or body fabric with the same basis weight b Fabric with a relatively high basis weight or overlapping fabric with the same basis weight 11 Clothing 12 Tightening portion 13 Tightening portion 21 Clothing 22 Tightening portion 23 Tightening portion
Claims
1. A garment having a tightening portion to be held on a body part of a wearer, wherein the tightening portion has a superimposed portion including at least a body fabric and a superimposed fabric, the superimposed fabric is fixed to the body fabric by an adhesive attached in a multi-row pattern of three or more rows parallel to the direction in which the tightening force acts, among the rows of the adhesive attached to the superimposed fabric, the row of the adhesive closest to each end of the fabric parallel to the direction in which the tightening force acts is linearly attached within 2.0 mm from the fabric end, among the rows of the adhesive attached to the superimposed fabric, the row of the adhesive in the central portion is attached in a dot shape, the hot peel strength when the superimposed portion is heated at 100° C. is 5.0 N / 2.54 cm or more, the elongation rate in the direction parallel to the linear direction of the linear portion of the adhesive is 50% or more and the elongation recovery rate is 85% or more, and the difference in the elongation recovery rate in the direction parallel to the linear direction between the portion where the adhesive is linearly attached and the portion where the adhesive is dot-attached is within 10%.
2. The garment according to claim 1, wherein the adhesive in the linear portion among the adhesives attached in the multi-row pattern of three or more rows is a reactive resin.
3. The garment according to claim 1 or 2, wherein the stress at 30% elongation in the tightening portion is 3.5 to 6.0 N / 2.54 cm.
4. The basis weight of at least one of the body fabric or the overlapping fabric of the overlapping part is 80 to 140 g / m 2 and in the cross-section of the overlapping part, when the total of the thickness (A t ) of the resin penetration layer A on the side of the fabric a, which is the fabric with a relatively low basis weight or the body fabric with the same basis weight, among the body fabric and the overlapping fabric, the thickness (B t ) of the resin penetration layer B on the side of the fabric b, which is the fabric with a relatively high basis weight or the overlapping fabric with the same basis weight, and the thickness (C t ) of the resin layer C by the adhesive is taken as 100%, A t is 20% to 30%, B t is 20% to 40%, C t is 30% to 60%, and the ratio (A t / a t ) of the thickness (A t ) of the resin penetration layer A to the thickness (a t ) of the fabric a is 0.2 to 0.
6. The clothing according to claim 1 or 2.
Citation Information
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