Cotton cup and garment

Abstract

The invention relates to the technical field of chest circumference, and discloses a cotton cup. Comprising a cotton cup body, the cotton cup body comprises a surface layer and a bottom layer, a middle layer is arranged in the cotton cup body, the middle layer comprises polyurethane, and the polyurethane has the performance of being easy to stretch and extend at a slow speed and tightening and protecting at a fast speed. Due to the arrangement of the polyurethane middle layer, the cotton cup has the performance that the cotton cup is easy to stretch and extend at a low speed and is tightened and protected at a high speed; in addition, the middle layer and the cotton cup are integrated, and the appearance is simple and traceless; therefore, the cotton cup can meet the requirements of working scenes and sports scenes at the same time. The invention further provides a garment comprising the cotton cup.

Description

Technical Field

[0001] The present invention relates to the technical field of bra girth, and in particular to a cotton cup and a garment. Background Art

[0002] In the prior art, bras and sports bras on the market add fabrics, films, steel rings, and resin materials in the middle or on the surface of the cotton cups to increase their functions, so that the cotton cups can partially enhance support and play a role in shaping and gathering the breasts. However, it is impossible to achieve the required comfort and fit effect for daily wear, and at the same time, protect the breasts during exercise and meet the function of not shaking violently during exercise in the same product.

[0003] Therefore, how to provide a cotton cup and clothing that are suitable for both work and sports scenes has become a technical problem that needs to be solved urgently. Summary of the invention

[0004] [Technical issues]

[0005] The technical problem to be solved by the present disclosure is how to provide a cotton cup and clothing that are suitable for both work and sports scenarios.

[0006] [Technical solution]

[0007] According to the first aspect, an embodiment of the present disclosure discloses a cotton cup, comprising: a cotton cup body, the cotton cup body comprising a surface layer and a bottom layer, an intermediate layer is arranged in the cotton cup body, the intermediate layer comprises polyurethane, and the polyurethane has the properties of being easy to stretch and extend at a slow speed and tighten and protect at a fast speed.

[0008] The present disclosure is further configured such that the polyurethane is bonded and fixed to the surface layer and the bottom layer respectively.

[0009] The present disclosure is further configured that the surface layer, the bottom layer and the polyurethane are hot-pressed and integrally formed.

[0010] The present disclosure is further configured that the middle layer also includes a fabric for locally supporting the cotton cup body, and the fabric is a knitted fabric, a mesh fabric, a woven fabric or a non-woven fabric.

[0011] The present disclosure is further configured such that the fabric is bonded and fixed to the surface layer and the bottom layer respectively.

[0012] The present disclosure is further configured that the surface layer, the bottom layer, the polyurethane and the fabric are hot-pressed and integrally formed.

[0013] The present disclosure is further configured such that the surface layer is made of a single layer of cloth; or the surface layer is a composite of a single layer of cloth and sponge; or the surface layer is a composite of a single layer of cloth and a single layer of cloth.

[0014] The present disclosure is further configured such that the bottom layer is made of a single layer of cloth; or the bottom layer is a composite of a single layer of cloth and a sponge; or the bottom layer is a composite of a single layer of cloth and a single layer of cloth.

[0015] The present disclosure is further configured such that there is a nonlinear relationship between the shear stress and the shear strain of the polyurethane.

[0016] The present disclosure is further configured that the rebound force of the polyurethane is no more than 20%.

[0017] The present disclosure further provides that the rebound force of the polyurethane is 12-14%.

[0018] The present disclosure is further configured that the polyurethane includes a plurality of uniformly distributed through holes, and the plurality of through holes are polygonal or circular.

[0019] The present disclosure is further provided that the components of the polyurethane include polyol, isocyanate and chain extender, wherein the weight content ratio of the polyol, the isocyanate and the chain extender is 80.00-100.00:70.00-90.00:10.00-20.00, the average functionality of the polyol is greater than or equal to 2, and the average functionality of the chain extender is greater than 2.

[0020] The present disclosure further provides that the molecular weight of the polyol is 300-2000, the molecular weight of the isocyanate is 320-400, and the molecular weight of the chain extender is 90-400.

[0021] The present disclosure further provides that the molecular weight of the polyol is 500-1200, the molecular weight of the isocyanate is 350-370, and the molecular weight of the chain extender is 200-300.

[0022] The present disclosure further provides that the weight content ratio of the polyol, the isocyanate and the chain extender is 85.00-95.00:75.00-85.00:13.00-17.00.

[0023] The present disclosure is further provided that the polyol is a polyether polyol or a polyester polyol, the chain extender is 1,4-butanediol, 1,6-hexanediol, diethylene glycol, dipropylene glycol, 1,2,3-propanetriol or trimethylolpropane, and the polyol and the chain extender are different.

[0024] According to a second aspect, an embodiment of the present disclosure discloses a garment, comprising a garment body and a cotton cup as described in the first aspect above, wherein the cotton cup is sewn or bonded to a local position of the garment body, and the local position is a joint position or a muscle protection position of the garment body.

[0025] The present disclosure is further configured such that the garment body is a chest circumference.

[0026] [Beneficial Effects]

[0027] The cotton cup body includes a surface layer and a bottom layer, and an intermediate layer is arranged in the cotton cup body, and the intermediate layer includes polyurethane, thereby providing a cotton cup. The polyurethane is arranged so that the cotton cup has the performance of being easy to stretch and extend at a slow speed and tighten and protect at a fast speed; in addition, the intermediate layer is integrated with the cotton cup, and the appearance is simple and seamless; therefore, it can be applied to the needs of both work scenes and sports scenes. BRIEF DESCRIPTION OF THE DRAWINGS

[0028] In order to more clearly illustrate the specific embodiments of the present disclosure or the technical solutions in the prior art, the drawings required for use in the specific embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of the present disclosure. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0029] Figure 1 This is one of the three-dimensional structural schematic diagrams of a cotton cup disclosed in this embodiment;

[0030] Figure 2 yes Figure 1 A schematic diagram of the cross-sectional structure of;

[0031] Figure 3 This is the second schematic diagram of the three-dimensional structure of a cotton cup disclosed in this embodiment;

[0032] Figure 4 yes Figure 3 A schematic cross-sectional structure diagram of ; and

[0033] Figure 5 It is a comparison chart of tensile test results of conventional TPU and the polyurethane material disclosed in the present invention.

[0034] Figure numerals: 1, surface layer; 2, bottom layer; 3, polyurethane; 4, fabric. DETAILED DESCRIPTION

[0035] In order to make the purpose, technical solution and advantages of the present disclosure more clear, the present disclosure is further described in detail below in conjunction with the accompanying drawings and implementation methods. It should be understood that the specific implementation methods described here are only used to explain the present disclosure and are not used to limit the present disclosure.

[0036] In the description of the present disclosure, it should be noted that, unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be indirectly connected through an intermediate medium, it can also be the internal connection of two elements, it can be a wireless connection, or it can be a wired connection. For ordinary technicians in this field, the specific meanings of the above terms in the present disclosure can be understood according to specific circumstances.

[0037] In the description of the present disclosure, it should be noted that the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer", etc., indicating the orientation or positional relationship, are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the present disclosure and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation of the present disclosure. In addition, the terms "first", "second", and "third" are used for descriptive purposes only, and cannot be understood as indicating or implying relative importance.

[0038] In addition, the technical features involved in the different embodiments of the present disclosure described below can be combined with each other as long as they do not conflict with each other.

[0039] The present disclosure discloses a cotton cup, which will be referred to below Figures 1 to 4 The specific structure of the cotton cup according to the embodiment of the present disclosure is described in detail.

[0040] According to one embodiment of the present disclosure, Figure 1 and Figure 2 As shown, the cotton cup includes: a cotton cup body, the cotton cup body includes a surface layer 1 and a bottom layer 2, an intermediate layer is provided in the cotton cup body, and the intermediate layer includes polyurethane 3, such as thermosetting polyurethane. In the present disclosure, the polyurethane 3 as the intermediate layer has the following properties: it is easy to stretch and extend at a slow speed, but not easy to stretch but tightened and protected at a fast speed. According to the cotton cup of the present disclosure, through the setting of the polyurethane 3, the cotton cup has the properties of being easy to stretch and extend at a slow speed and tightened and protected at a fast speed. In addition, the intermediate layer is integrated with the cotton cup, and the appearance is simple and seamless; it is suitable for both work and sports scene requirements.

[0041] like Figure 2 As shown, the polyurethane 3 is bonded and fixed to the surface layer 1 and the bottom layer 2 respectively.

[0042] like Figure 1 and Figure 2As shown, the surface layer 1, the bottom layer 2 and the polyurethane 3 are integrally formed by hot pressing. In a specific embodiment, the surface of the surface layer 1, the bottom layer 2 and the polyurethane 3 are covered with glue, and after stacking, they are formed by a mold at high temperature (160-195° C.), and the glue bonding is not easy to fall off.

[0043] like Figure 1 and Figure 2 As shown, the middle layer also includes a fabric 4 for locally supporting the cotton cup body. It should be noted that the fabric 4 can be a knitted fabric, a mesh fabric, a woven fabric or a non-woven fabric. Figure 1 and Figure 2 , the fabric 4 can be located at the lower part of the cotton cup body. Further, as Figure 2 As shown, the fabric 4 may be located above the polyurethane 3 and at least partially overlap the lower portion of the polyurethane 3 .

[0044] In addition, the present disclosure does not limit the shapes of the polyurethane 3 and the fabric 4. The shapes of the polyurethane 3 and the fabric 4 can be smaller than the cotton cup, or the shapes of the polyurethane 3 and the fabric 4 can be as large as the cotton cup.

[0045] like Figure 1 and Figure 2 As shown, the fabric 4 is bonded and fixed to the surface layer 1 and the bottom layer 2 respectively.

[0046] like Figure 1 and Figure 2 As shown, the surface layer 1, the bottom layer 2, the polyurethane 3 and the fabric 4 are integrally formed by hot pressing. In a specific embodiment, the surface of the surface layer 1, the bottom layer 2, the polyurethane 3 and the fabric 4 are covered with glue, and after stacking, they are formed by a mold at high temperature (160-195° C.), and the glue is not easy to fall off.

[0047] like Figure 1 and Figure 2 As shown, the surface layer 1 is made of a single layer of cloth; or the surface layer 1 is a composite of a single layer of cloth and a sponge; or the surface layer 1 is a composite of a single layer of cloth and a single layer of cloth. In a specific embodiment, the surface layer 1 can be a traditional cotton cup cloth and a sponge, or the surface layer 1 can also be a multi-layer cloth structure.

[0048] like Figure 1 and Figure 2 As shown, the bottom layer 2 is made of a single layer of cloth; or the bottom layer 2 is a composite of a single layer of cloth and a sponge; or the bottom layer 2 is a composite of a single layer of cloth and a single layer of cloth. In a specific embodiment, the bottom layer 2 can be a traditional cotton cup cloth and a sponge, and the surface layer 1 can also be a multi-layer cloth structure.

[0049] According to another embodiment of the present disclosure, Figure 3 and Figure 4As shown, the cotton cup disclosed in the present invention comprises: a cotton cup body, the cotton cup body comprises a surface layer 1 and a bottom layer 2, an intermediate layer is arranged in the cotton cup body, and the intermediate layer comprises polyurethane 3, such as thermosetting polyurethane.

[0050] like Figure 4 As shown, the polyurethane 3 is bonded and fixed to the surface layer 1 and the bottom layer 2 respectively.

[0051] like Figure 3 and Figure 4 As shown, the surface layer 1, the bottom layer 2 and the polyurethane 3 are integrally formed by hot pressing. In a specific embodiment, the surface of the surface layer 1, the bottom layer 2 and the polyurethane 3 are covered with glue, and after stacking, they are formed by a mold at high temperature (160-195° C.), and the glue bonding is not easy to fall off.

[0052] like Figure 3 and Figure 4 As shown, the middle layer also includes a fabric 4 for locally supporting the cotton cup body. It should be noted that the fabric 4 can be a knitted fabric, a mesh fabric, a woven fabric or a non-woven fabric. Figure 3 and Figure 4 , the fabric 4 can be located on the upper part of the cotton cup body. Further, as Figure 4 As shown, the fabric 4 may be located below the polyurethane 3 and not overlap the polyurethane 3 .

[0053] like Figure 3 and Figure 4 As shown, the fabric 4 is bonded and fixed to the surface layer 1 and the bottom layer 2 respectively.

[0054] like Figure 3 and Figure 4 As shown, the surface layer 1, the bottom layer 2, the polyurethane 3 and the fabric 4 are integrally formed by hot pressing. In a specific embodiment, the surface of the surface layer 1, the bottom layer 2, the polyurethane 3 and the fabric 4 are covered with glue, and after stacking, they are formed by a mold at high temperature (160-195° C.), and the glue is not easy to fall off.

[0055] like Figure 3 and Figure 4 As shown, the surface layer 1 is made of a single layer of cloth; or the surface layer 1 is a composite of a single layer of cloth and a sponge; or the surface layer 1 is a composite of a single layer of cloth and a single layer of cloth. In a specific embodiment, the surface layer 1 can be a traditional cotton cup cloth and a sponge, or the surface layer 1 can also be a multi-layer cloth structure.

[0056] like Figure 3 and Figure 4 As shown, the bottom layer 2 is made of a single layer of cloth; or the bottom layer 2 is a composite of a single layer of cloth and a sponge; or the bottom layer 2 is a composite of a single layer of cloth and a single layer of cloth. In a specific embodiment, the bottom layer 2 can be a traditional cotton cup cloth and a sponge, and the surface layer 1 can also be a multi-layer cloth structure.

[0057] It should be noted that, although the above specific embodiments provide examples of the relative positions and shapes of the polyurethane 3 and the fabric 4, they are only illustrative and restrictive. For example, the polyurethane 3 may be above, below, or on the side of the fabric 4, and the two may even overlap, partially overlap, or not overlap at all. In addition, the present disclosure does not limit the shapes of the polyurethane 3 and the fabric 4. The shapes of the polyurethane 3 and the fabric 4 may be smaller than the cotton cup, or they may be as large as the cotton cup.

[0058] As described above, the polyurethane 3 as the middle layer in the present disclosure has the following properties: it is easy to stretch and extend at a slow speed, but is not easy to stretch but tightens and protects at a fast speed. The polyurethane 3 as the middle layer in the cotton cup of the present disclosure is further described below.

[0059] According to an embodiment of the present disclosure, the components of the polyurethane 3 may include a polyol, an isocyanate and a chain extender, wherein the weight ratio of the polyol, the isocyanate and the chain extender is 80.00-100.00:70.00-90.00:10.00-20.00, and the average functionality of the polyol is greater than or equal to 2, and the average functionality of the chain extender is greater than 2.

[0060] Molecules with a functionality of 1 can only generate dimers, molecules with a functionality of 2 can generate linear polymers, and molecules with a functionality greater than 2 can generate three-dimensional polymers with higher strength than linear polymers. Since in the polyurethane 3 used in the present disclosure, the average functionality of the polyol is greater than or equal to 2 and the average functionality of the chain extender is greater than 2, a three-dimensional polymer can be formed, which has better structural strength and good shock absorption and buffering capabilities in multiple dimensions.

[0061] As an example, the molecular weight of the polyol may be 300-2000, the molecular weight of the isocyanate may be 320-400, and the molecular weight of the chain extender may be 90-400.

[0062] Furthermore, the molecular weight of the polyol may be 500 to 1200, the molecular weight of the isocyanate may be 350 to 370, and the molecular weight of the chain extender may be 200 to 300. For example, the isocyanate may be hexamethylene diisocyanate (Isocyanate) with a molecular weight of about 361.

[0063] As an example, the weight ratio of polyol, isocyanate and chain extender can be 85.00-95.00:75.00-85.00:13.00-17.00. Preferably, the weight ratio of polyol, isocyanate and chain extender can be 90.00:79.00:15.00. For example, the weight ratio of polyol, isocyanate and chain extender can be 52:40:8.

[0064] As an example, the polyol can be a polyether polyol or a polyester polyol, the chain extender can be 1,4-butanediol, 1,6-hexanediol, diethylene glycol, dipropylene glycol, 1,2,3-propanetriol or trimethylolpropane, and the polyol and the chain extender are different.

[0065] According to the embodiments of the present disclosure, as an example, the shear stress and shear strain of the polyurethane 3 may be nonlinearly related. Therefore, when subjected to external force impact, a large amount of energy can be absorbed quickly, and the polyurethane 3 can reduce the rebound effect, further improving the shock-absorbing and buffering effect.

[0066] As an example, the rebound force of the polyurethane 3 used in the present disclosure may be no greater than 20%. Furthermore, the rebound force of the polyurethane 3 may be, for example, 12-14%. The rebound force is a percentage of the rebound height relative to the drop height, wherein the drop height is the height of the object from the polyurethane 3, and the rebound height is the height of the object from the polyurethane 3 after rebounding from the polyurethane 3.

[0067] According to an embodiment of the present disclosure, as an example, the polyurethane 3 may include a plurality of through holes evenly distributed thereon. Using these through holes can achieve material saving, light weight, and low cost, and can also provide good physical permeability (e.g., air permeability, liquid permeability, etc.) effects. Furthermore, the shape of these multiple through holes can be polygonal (such as hexagonal) or circular.

[0068] As another example, the polyurethane 3 may not have any through holes, thereby having a sufficient shock-absorbing and buffering effect.

[0069] In order to better illustrate the performance of the polyurethane used in the present disclosure, the tensile test results of the polyurethane are given in Table 1 below.

[0070] Table 1 Tensile test results of polyurethane materials

[0071]

[0072] The method of tensile testing is as follows: Step 1: Take out the standard sample, fix it on the upper and lower clamps of the tensile machine, and stretch it to 2kg at a constant speed, referring to the modulus during the stretching process (the force value received at 20%, 40%, 60%, 80% and the change in total elongation); Step 2: After the test is completed, take out the sample and measure the length of the sample after 1 minute and 30 minutes to calculate the recovery rate. This method can monitor the modulus change and recovery rate of the sample under the tensile force of a fixed force value.

[0073] Two different stretching speeds were used in the stretching test, i.e., slow stretching speed (such as 100 mm / min) and fast stretching speed (such as 1000 mm / min), and then the above-mentioned stretching test method was used to simulate the two scenarios of slow stretching and fast stretching, and the experimental results such as recovery rate were recorded. The experimental results show that under the same stretching force, the recovery rate is significantly lower in fast stretching than in slow stretching (23.5<75.1).

[0074] It can be seen from the above table that if a faster stretching speed is set, the protective effect of the polyurethane material will be further improved. It can be seen that, as shown in the above test results, the polyurethane 3 used in the present disclosure only undergoes a slight deformation when subjected to an instantaneous external force impact.

[0075] In addition, in another tensile test, a conventional thermoplastic polyurethane (TPU) material and the polyurethane material of the present invention were subjected to a tensile test at a lower tensile speed such as 25 mm / min. The test results are as follows: Figure 5 As shown. Figure 5 According to the tensile test results, the force required to pull the TPU film at a low speed is large, and the required tensile force increases sharply with the greater deformation, and the tensile force increases sharply to about 2.200 kgf when the tensile deformation is 12 cm. However, the force required to pull the polyurethane material of the present disclosure at a low speed is relatively very small, and the required tensile force is only about 0.400 kgf when the tensile deformation is 12 cm, so it is suitable for the requirements of wearable objects for mobility and comfort.

[0076] Since the prior art generally uses thermoplastic polyurethane with low heat resistance, it will stretch and deform along the direction of the force when subjected to instantaneous external force impact, so the protective power is weak. In order to solve the above problem, a new polyurethane is used in the embodiment of the present disclosure, which is easy to stretch and extend at a slow speed and tighten and protect at a fast speed, thereby improving the protective performance of the cotton cup and clothing using it as the middle layer.

[0077] The embodiment of the present disclosure discloses a garment, comprising a garment body and a cotton cup as described in the first aspect above, wherein the cotton cup is sewn or bonded to a local position of the garment body, and the local position is located at a joint position or a muscle protection position of the garment body. For example, the cotton cup can be applied to a bra, sportswear or sports shoes, or knee pads. When a user performs high-frequency and intense exercise, it can provide comfortable wrapping performance and at the same time play a protective role to avoid joint or muscle injuries.

[0078] In a specific embodiment, the clothing body is a bra. When a user wears the bra containing the cotton cup, the cotton cup will be naturally pulled open according to the user's body shape, making it more fit. When the user is doing strenuous exercise, the cotton cup will automatically tighten to protect the user's chest, preventing the user's chest from shaking violently and causing injury.

[0079] Obviously, the above embodiments are merely examples for clear explanation, and are not intended to limit the embodiments. For those skilled in the art, other different forms of changes or modifications can be made based on the above description. It is not necessary and impossible to list all the embodiments here, so the obvious changes or modifications derived therefrom are still within the scope of protection of the present disclosure.

Claims

1. A cotton cup, characterized in that: include: The cotton cup body comprises a surface layer (1) and a bottom layer (2). An intermediate layer is arranged inside the cotton cup body. The intermediate layer comprises polyurethane (3). The polyurethane (3) has the properties of being easy to stretch and extend at a slow speed and being tightened and protected at a fast speed.

2. The cotton cup according to claim 1, characterized in that: The polyurethane (3) is bonded and fixed to the surface layer (1) and the bottom layer (2) respectively.

3. The cotton cup according to claim 1, characterized in that: The surface layer (1), the bottom layer (2) and the polyurethane (3) are integrally formed by hot pressing.

4. The cotton cup according to claim 1, characterized in that: The middle layer also includes a fabric (4) for locally supporting the cotton cup body, and the fabric (4) is a knitted fabric, a mesh fabric, a woven fabric or a non-woven fabric.

5. The cotton cup according to claim 4, characterized in that: The fabric (4) is bonded and fixed to the surface layer (1) and the bottom layer (2) respectively.

6. The cotton cup according to claim 4, characterized in that: The surface layer (1), the bottom layer (2), the polyurethane (3) and the fabric (4) are integrally formed by hot pressing.

7. The cotton cup according to any one of claims 1 to 6, characterized in that: The surface layer (1) is made of a single layer of cloth; or the surface layer (1) is a composite of a single layer of cloth and sponge; or the surface layer (1) is a composite of a single layer of cloth and a single layer of cloth.

8. The cotton cup according to any one of claims 1 to 6, characterized in that: The bottom layer (2) is made of a single layer of cloth; or the bottom layer (2) is a composite of a single layer of cloth and sponge; or the bottom layer (2) is a composite of a single layer of cloth and a single layer of cloth.

9. The cotton cup according to claim 1, characterized in that: The shear stress and shear strain of the polyurethane (3) are in a nonlinear relationship.

10. The cotton cup according to claim 1, characterized in that: The rebound force of the polyurethane (3) is no greater than 20%.

11. The cotton cup according to claim 10, characterized in that: The repulsion force of the polyurethane (3) is 12-14%.

12. The cotton cup according to claim 1, characterized in that: The polyurethane (3) comprises a plurality of evenly distributed through holes, and the plurality of through holes are polygonal or circular.

13. The cotton cup according to claim 1, characterized in that: The components of the polyurethane (3) include polyol, isocyanate and chain extender, wherein the weight ratio of the polyol, the isocyanate and the chain extender is 80.00-100.00:70.00-90.00:10.00-20.00, the average functionality of the polyol is greater than or equal to 2, and the average functionality of the chain extender is greater than 2.

14. The cotton cup according to claim 13, characterized in that: The molecular weight of the polyol is 300-2000, the molecular weight of the isocyanate is 320-400, and the molecular weight of the chain extender is 90-400.

15. The cotton cup according to claim 14, characterized in that: The molecular weight of the polyol is 500-1200, the molecular weight of the isocyanate is 350-370, and the molecular weight of the chain extender is 200-300.

16. The cotton cup according to claim 13, characterized in that: The weight ratio of the polyol, the isocyanate and the chain extender is 85.00-95.00:75.00-85.00:13.00-17.

00.

17. The cotton cup according to claim 13, characterized in that: The polyol is a polyether polyol or a polyester polyol, the chain extender is 1,4-butanediol, 1,6-hexanediol, diethylene glycol, dipropylene glycol, 1,2,3-propanetriol or trimethylolpropane, and the polyol and the chain extender are different.

18. A garment, characterized in that: The garment comprises a garment body and a cotton cup according to any one of claims 1-17, wherein the cotton cup is sewn or bonded to a local position of the garment body, and the local position is a joint position or a muscle protection position of the garment body. The garment according to claim 18 , wherein the garment body is a chest circumference.

Images