Gradient breathable soft underwear fabric

Abstract

The utility model relates to gradient breathable soft underwear fabric which sequentially comprises a skin attaching layer, a gradient breathable layer and a windproof surface layer, a moisture guiding structure is formed between the skin attaching layer and the gradient breathable layer, one end of the moisture guiding structure and the skin attaching layer are integrally woven and formed, and a breathable cavity is formed in the gradient breathable layer. The end, away from the skin attaching layer, of the moisture guiding structure is communicated with the breathable cavity, first breathable holes matched with the windproof surface layer are formed in the bottom of the breathable cavity, elastic fibers are interwoven in the gradient breathable layer, the breathable cavity and the elastic fibers are linked to form a dynamic exhaust structure, and the opening degree of the first breathable holes is adjusted in a self-adaptive mode along with fabric deformation. And the skin-attaching layer is formed by special-shaped modified fibers. The utility model has the beneficial effects that the problem of skin moisture accumulation caused by diffusion of a traditional fabric depending on interlaminar gaps is reduced through a continuous moisture guide path of the skin-attaching layer, the moisture guide structure and the breathable cavity.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of fabric, specifically is a gradient breathable light soft underwear fabric. BACKGROUND

[0002] With the improvement of people's health consciousness and the upgrading of underwear wearing demand to "comfort, functional", the traditional underwear fabric gradually exposes many problems. At present, most underwear fabrics rely on interlayer gap to diffuse moisture, although this design can help to reduce the accumulation of moisture to a certain extent, but it cannot effectively prevent the long-term accumulation of moisture on the skin surface. Long-term accumulation of moisture not only makes people feel hot and sticky, but also may cause skin problems, affecting the comfort and health of wearing. Especially in the humid summer or during physical activity, this problem is more prominent, causing the long-wearing underwear to become more prone to odor, affecting the overall experience of the user.

[0003] In view of this situation, domestic and foreign researchers have made many attempts and improvements. Some manufacturers begin to use skin-friendly, moisture-absorbing and quick-drying new materials, such as graphene fiber and polytetrafluoroethylene (PTFE) fiber, in order to improve the air permeability and moisture absorption of underwear. However, the existing technology has not completely solved the problem of rapid diffusion of moisture in the inner layer of underwear, especially after forming a moisture isolation zone between the fabric and the skin, even if using moisture-absorbing materials, moisture may still accumulate on the skin surface, affecting the wearing experience and health. SUMMARY

[0004] In view of the above-mentioned deficiencies of the prior art, the purpose of the utility model is to provide a gradient breathable light soft underwear fabric to solve the problems raised in the background art.

[0005] To solve the above technical problems, the utility model adopts the following technical scheme:

[0006] The utility model provides a gradient breathable light soft underwear fabric, which comprises a skin layer, a gradient breathable layer and a windproof surface layer in sequence, a moisture guide structure is formed between the skin layer and the gradient breathable layer, one end of the moisture guide structure is integrally formed with the skin layer, a breathable cavity is arranged in the gradient breathable layer, the end of the moisture guide structure away from the skin layer is communicated with the breathable cavity, a first breathable hole matched with the windproof surface layer is formed in the bottom of the breathable cavity, elastic fibers are interwoven in the gradient breathable layer, the breathable cavity and the elastic fibers form a dynamic exhaust structure, the opening and closing degree of the first breathable hole is self-adaptively adjusted with the deformation of the fabric, the skin layer is composed of profiled modified fibers, the cross-sectional shape of the profiled modified fibers is matched with the cross-sectional shape of the moisture guide structure, and a continuous moisture guide path is formed.

[0007] In one or more embodiments of the utility model, the special-shaped modified fiber is cross-section polyester fiber, the special-shaped modified fiber is introduced with hydrophilic group through plasma treatment, the filament fineness of special-shaped modified fiber is 0.8~1.2dtex, and the fabric organization of skin layer is leno weave.

[0008] In one or more embodiments of the utility model, the groove shape of air-permeable chamber is matched with the end of moisture guide column, the second air-permeable hole is arranged on the side wall of air-permeable chamber, the pore size of second air-permeable hole gradually changes from 3~5 microns on the side of skin-friendly layer to 10~15 microns on the side of windproof surface layer, and the distribution density of second air-permeable hole is positively correlated with the array spacing of moisture guide column.

[0009] In one or more embodiments of the utility model, in the dynamic exhaust structure, the elastic fiber is distributed along the circumference of air-permeable chamber, when the fabric is subjected to tensile force, the elastic fiber is deformed to drive the bottom of air-permeable chamber to protrude towards the windproof surface layer, so as to increase the effective area of first air-permeable hole.

[0010] In one or more embodiments of the utility model, the array spacing of moisture guide structure is 8~10mm, and the moisture guide structure is distributed in a regular hexagon, the height of moisture guide structure is consistent with the spacing between skin-friendly layer and gradient air-permeable layer, and is 0.2~0.3mm.

[0011] In one or more embodiments of the utility model, the windproof surface layer is a base fabric interwoven by nylon and polyurethane, the surface of windproof surface layer is coated with an ultrathin hydrophobic coating, the porosity of the area of windproof surface layer corresponding to first air-permeable hole is 40%~45%, and the porosity of the remaining area is ≤20%.

[0012] In one or more embodiments of the utility model, the fabric grammage of skin layer is 80~100g / m 2 , and the friction coefficient of the skin contact side of skin layer is ≤0.15.

[0013] In one or more embodiments of the utility model, the gradient air-permeable layer is formed by interweaving octagonal hollow polyester fiber and elastic fiber, the hollow rate of octagonal hollow polyester fiber is 35%~40%, and the fabric grammage of gradient air-permeable layer is 60~80g / m 2 .

[0014] In one or more embodiments of the utility model, the cross-section of moisture guide structure has four axial grooves, the depth of groove is 0.05~0.1mm, the groove is in one-to-one communication with the groove of special-shaped modified fiber of skin layer, and constitutes a continuous capillary moisture guide channel.

[0015] In one or more embodiments of the utility model, the total thickness of the fabric is 0.8~1.2mm, and the total grammage is not more than 250g / m 2 In the dynamic exhaust structure, the elastic fiber is polyurethane elastic filament with linear density of 40~70D, the elastic fiber is integrally woven with the framework of the air permeable chamber, and the elastic fiber is spirally wound and distributed along the circumference of the air permeable chamber, and the chamber side wall of the air permeable chamber adopts elastic warp knitting jacquard organization.

[0016] The utility model discloses the beneficial effect lies in: through the continuous wet path of skin layer, wet structure, air permeable chamber, reduce the skin moisture accumulation problem caused by the interlayer gap diffusion of traditional fabric, avoid the risk of stuffiness and sticky as far as possible with skin problem, make moisture as far as possible away from the skin surface, be favorable to the promotion of wearing experience and keep healthy. DRAWINGS

[0017] In order to more clearly illustrate the technical scheme in the embodiments of the utility model or the prior art, the following will briefly introduce the drawings needed to be used in the embodiment or the prior art description, and obviously, the drawings in the following description are only some embodiments of the utility model, and for those skilled in the art, other drawings can also be obtained without creative labor on the basis of these drawings.

[0018] Figure 1 It is the structural schematic diagram of a gradient air-permeable light and soft underwear fabric in an embodiment of the utility model;

[0019] Figure 2 It is Figure 1 The structural schematic diagram in A place.

[0020] Mark explanation:

[0021] 1, skin layer;2, gradient air-permeate layer;201, wet structure;3, windproof surface layer;4, air permeable chamber;401, first air permeable hole. SPECIFIC IMPLEMENTATION

[0022] In order to further illustrate the technical means and effects adopted by the utility model to achieve the predetermined utility model purposes, the following will be combined with the drawings and preferred embodiments, and the specific implementation, structure, features and effects of the utility model will be described in detail as follows.

[0023] As Figures 1-2 Indicated, a gradient air-permeable light and soft underwear fabric in an embodiment of the utility model, the fabric is sequentially from inside to outside along the thickness direction skin layer 1, gradient air-permeate layer 2 and windproof surface layer 3, and the three are fixed through point, line combination compound technology, form integrated structure.

[0024] The arrayed wet guide structure 201 is between the skin layer 1 and the gradient air permeable layer 2, one end of the arrayed wet guide structure 201 is integrally woven with the skin layer 1 to avoid the separation between the layers and the interruption of the wet guide, and the other end is inserted into the air permeable chamber 4 in the gradient air permeable layer 2 and communicates with the inside of the air permeable chamber 4. The air permeable chamber 4 is in the form of a groove, and the first air permeable hole 401 is opened at the bottom and is accurately positioned with the air exhaust area of the windproof surface layer 3. The elastic fiber is interwoven in the gradient air permeable layer 2, and the elastic fiber is linked with the chamber framework of the air permeable chamber 4 to form a dynamic air exhaust structure. The cross section of the modified fiber of the skin layer 1 is consistent with the cross section of the wet guide structure 201, which ensures the continuity of the wet guide path.

[0025] The modified fiber of the skin layer 1 is a cross section polyester fiber, the fiber surface is treated by plasma to introduce hydrophilic groups such as hydroxyl and carboxyl, the single fiber fineness is controlled in 0.8-1.2 dtex, and the fabric organization adopts leno organization.

[0026] The fabric weight of the skin layer 1 is 80-100 g / m 2 The fiber fineness and organization density are optimized to make the friction coefficient of the skin layer 1 on the skin contact side ≤0.15.

[0027] The cross section of the wet guide structure 201 is provided with four axial grooves (not shown in the figure), the groove depth is 0.05-0.1 mm, and the groove is one-to-one corresponding and completely communicated with the groove of the cross section fiber of the skin layer 1, forming a continuous capillary wet guide channel.

[0028] The four grooves of the cross section fiber greatly increase the specific surface area, cooperate with the hydrophilic groups introduced by the plasma treatment, and the capillary adsorption capacity is increased by more than 40% compared with the round fiber, which can quickly adsorb the trace sweat on the skin surface and avoid the sticky feeling. The fine denier fiber of 0.8-1.2 dtex is combined with the leno organization to reduce the rigidity of the skin layer 1, the friction coefficient is ≤0.15, the soft experience is improved, and the skin friction damage is reduced.

[0029] In addition, the groove of the wet guide structure 201 is one-to-one communicated with the groove of the skin layer 1, which eliminates the breakpoint of the wet guide path, and the moisture can directly enter the wet guide structure 201 from the fiber groove, the wet guide rate is greatly improved compared with the conventional fabric, which is beneficial to reduce the accumulation of moisture between the layers.

[0030] The moisture guide structure 201 is arranged in a regular hexagonal array with an array spacing of 8-10 mm. The height of the moisture guide structure 201 is consistent with the spacing between the skin layer 1 and the gradient air permeable layer 2, which is 0.2-0.3 mm. The regular hexagonal array ensures that the moisture guide structure 201 is evenly distributed on the surface of the fabric, and as much as possible to avoid local moisture guide blind area, which is conducive to realizing uniform moisture guide in the whole area. The array spacing of 8-10 mm balances the moisture guide efficiency and the softness of the fabric. If the spacing is too small, the weight of the fabric will increase, and if the spacing is too large, the local moisture guide will not be timely. The height of 0.2-0.3 mm is designed to fill the gap between the skin layer 1 and the gradient air permeable layer 2, which ensures the linearity of the moisture guide channel and does not increase the overall thickness of the fabric, and balances the lightness and moisture guide efficiency

[0031] In the above embodiment, the integrated structure design avoids interlayer slip and ensures the stability of the moisture guide and air permeable structure, solving the problem of functional failure caused by the separation of the existing fabric layers. At the same time, the direct communication between the moisture guide structure 201 and the air permeable chamber 4 constructs a continuous channel of the skin layer 1, the moisture guide structure 201, the gradient air permeable layer 2, the air permeable chamber 4 and the windproof surface layer 3, which is conducive to solving the pain point of discontinuous moisture diffusion path. The dynamic exhaust structure cooperates with the gradient air permeable layer 2 design to realize the self-adaptive adjustment of static stable air permeability and dynamic efficient exhaust, and balances the comfort in different activity states.

[0032] As a further improvement of the present embodiment, as shown in Figures 1-2 , the groove shape of the air permeable chamber 4 is adapted to the end of the moisture guide structure 201, and the sidewall of the air permeable chamber 4 is provided with a second air permeable hole (not shown in the figure). The aperture of the second air permeable hole gradually changes from 3-5 microns on the skin layer 1 side to 10-15 microns on the windproof surface layer 3 side. The distribution density of the second air permeable hole is positively correlated with the array spacing of the moisture guide structure 201. For example, when the array spacing of the moisture guide structure 201 is 8 mm, the density of the second air permeable hole is 120-150 per cm 2 , and when the array spacing is 10 mm, the density of the second air permeable hole is 80-100 per cm 2 . The density of the second air permeable hole is positively correlated with the array spacing of the moisture guide structure 201, which ensures that the first air permeable hole 401 is more sufficient in the area with large moisture guide, and avoids the accumulation of moisture in the chamber.

[0033] The gradient air permeable layer 2 is formed by interweaving octagonal hollow polyester fibers and elastic fibers. The hollow rate of the octagonal hollow polyester fibers is 35%-40%, and the fabric grammage of the gradient air permeable layer 2 is 60-80 g / m 2 .

[0034] In the above embodiment, the end of the air permeable chamber 4 is adapted to the moisture guide structure 201, which ensures that the moisture can directly enter the chamber after being discharged from the moisture guide structure 201, avoiding moisture leakage or diffusion loss.

[0035] The gradient aperture design utilizes the capillary effect to form a directional driving force for internal absorption and external discharge. The inner small hole matches the size of the groove of the moisture guide structure 201, and absorbs moisture through capillary force. The outer large hole reduces the resistance of moisture discharge and blocks the reverse infiltration of external airflow. External airflow is difficult to enter the small hole from the large hole, achieving directional air guidance and air tightness.

[0036] The hollow rate of the octagonal hollow polyester fiber is 35%-40%, and the density is only 0.95 g / cm 3 , which is 25% lighter than conventional polyester fibers. Combined with a low grammage design of 60-80 g / m 2 , the weight of the gradient air-permeable layer 2 is greatly reduced, balancing air permeability and softness. Compared with a circular cross-section, the larger space between fibers in an octagonal cross-section further improves air permeability efficiency.

[0037] As a further improvement of the embodiment, in the dynamic exhaust structure, the elastic fibers are distributed along the circumference of the air-permeable chamber 4. When the fabric is subjected to radial or weft tension generated by human activity, the elastic fibers deform to drive the bottom of the air-permeable chamber 4 to protrude towards the windproof surface layer 3, increasing the effective area of the first air-permeable hole 401 by 30-50%.

[0038] The total thickness of the fabric is 0.8-1.2 mm, and the total grammage does not exceed 250 g / m 2 . The elastic fibers in the dynamic exhaust structure are polyurethane elastic filaments with a linear density of 40-70D. The elastic fibers are integrally woven with the skeleton of the air-permeable chamber 4, and are spirally wound along the circumference of the air-permeable chamber 4. The chamber side wall of the air-permeable chamber 4 adopts elastic warp-knitted jacquard organization.

[0039] In the above embodiment, the elastic fibers are spirally wound along the circumference of the air-permeable chamber 4 and integrally woven with the chamber skeleton, ensuring the linkage of the elastic fibers and the chamber, and avoiding structural separation during deformation. The 40-70D polyurethane elastic filaments have excellent elastic recovery performance, and combined with the elastic warp-knitted jacquard organization, the air-permeable chamber 4 can quickly reset after stretching, with strong structural stability and less deformation during long-term use

[0040] When the human body is active, the protrusion of the bottom of the air-permeable chamber 4 increases the effective area of the first and second air-permeable holes by 30-50%, and the exhaust volume is simultaneously increased, quickly discharging a large amount of moisture generated during exercise; when stationary, the air-permeable chamber 4 resets, and the first and second air-permeable holes return to the initial aperture, maintaining a stable air-permeable state, achieving adaptive matching of activity amplitude and exhaust volume.

[0041] Finally, the total thickness of the fabric is controlled to be 0.8-1.2 mm, and the total grammage does not exceed 250 g / m². Combined with the low grammage design of each layer, the overall fabric is light and thin, with no weight feeling when worn, balancing functionality and softness experience.

[0042] As a further improvement of the embodiment, the windproof surface layer 3 is a base fabric interwoven with nylon and polyurethane, and the interweaving ratio of the two is 7:3. The interwoven base fabric of nylon and polyurethane has both strength and elasticity, can stretch and contract synchronously with the deformation of the gradient air-permeable layer 2, and does not affect the function realization of the dynamic air exhaust structure.

[0043] The base fabric surface is coated with an ultra-thin hydrophobic coating with a thickness of 0.01-0.02 mm. The ultra-thin hydrophobic coating not only blocks external water vapor from penetrating in, but also does not block the first and second air-permeable holes, while enhancing the windproof performance and avoiding the contradiction between air permeability and wind leakage. The porosity of the base fabric in the areas corresponding to the first and second air-permeable holes is 40%-45%, and the porosity of the remaining areas is ≤20%, realizing precise functional zoning of air-permeable exhaust area and windproof non-exhaust area.

[0044] The working principle of the gradient air-permeable light and soft underwear fabric is as follows:

[0045] When the human body is still: the cross-shaped profiled fiber of the skin-adhesive layer 1 absorbs the trace of moisture on the skin surface through the capillary effect of the groove, the moisture directly enters the air-permeable chamber 4 through the connecting groove of the moisture-conducting structure 201, the second air-permeable hole with a gradually changing aperture on the side wall of the air-permeable chamber 4 generates a directional driving force to conduct the moisture to the windproof surface layer 3, and the hydrophobic coating and the zoned porosity design of the windproof surface layer 3 make the moisture discharged from the exhaust area with a porosity of 40%-45% while blocking the external airflow from penetrating in the opposite direction, keeping the inside of the fabric dry and warm.

[0046] When the human body is active: the polyurethane elastic yarn spirally distributed along the circumference of the chamber in the gradient air-permeable layer 2 deforms under the action of the stretching force, drives the bottom of the air-permeable chamber 4 to protrude towards the windproof surface layer 3, and increases the effective area of the first air-permeable hole 401 by 30-50%, so that the moisture in the air-permeable chamber 4 is quickly discharged. After the activity stops, the elastic fiber resets the air-permeable chamber 4, the first air-permeable hole 401 returns to the original aperture, and the fabric returns to the stable air-permeable state, realizing dynamic self-adaptive adjustment of the exhaust volume.

[0047] The above is only a preferred embodiment of the present application, and does not limit the present application in any form. Although the present application has been disclosed as above with a preferred embodiment, it is not intended to limit the present application. Any person skilled in the art can make some changes or modifications to the above-mentioned technical content without departing from the technical solution of the present application, and any equivalent embodiments with equivalent changes and modifications made to the above embodiments based on the technical essence of the present application are still within the scope of the technical solution of the present application.

Claims

1. A gradient air-permeable light soft underwear fabric, characterized by, It sequentially comprises a skin layer (1), a gradient air-permeable layer (2) and a windproof surface layer (3); A moisture guide structure (201) is formed between the skin layer (1) and the gradient air-permeable layer (2), one end of the moisture guide structure (201) is integrally formed with the skin layer (1); The gradient air-permeable layer (2) is provided with an air-permeable chamber (4), one end of the moisture guide structure (201) away from the skin layer (1) is communicated with the air-permeable chamber (4), and the bottom of the air-permeable chamber (4) is provided with a first air-permeable hole (401) matched with the windproof surface layer (3); The gradient air-permeable layer (2) is interwoven with elastic fibers, the air-permeable chamber (4) and the elastic fibers form a dynamic exhaust structure, and the air-permeable chamber (4) is self-adaptively adjusted according to the deformation of the fabric to adjust the opening degree of the first air-permeable hole (401); The skin layer (1) is composed of profiled modified fibers, the cross-sectional shape of the profiled modified fibers is matched with the cross-sectional shape of the moisture guide structure (201), and a continuous moisture guide path is formed.

2. A gradient air-through light soft type underwear fabric according to claim 1, characterized in that, The profiled modified fibers are cross-section polyester fibers, the profiled modified fibers are treated by plasma to introduce hydrophilic groups, the fineness of the profiled modified fibers is 0.8-1.2 dtex, and the fabric organization of the skin layer (1) is leno organization.

3. A gradient air-through light and soft underwear fabric according to claim 1, characterized in that, The groove shape of the air-permeable chamber (4) is matched with the end of the moisture guide column; The sidewall of the air-permeable chamber (4) is provided with a second air-permeable hole, the aperture of the second air-permeable hole gradually changes from 3-5 microns on the skin layer side to 10-15 microns on the windproof surface layer (3) side, and the distribution density of the second air-permeable hole is positively correlated with the array spacing of the moisture guide column.

4. The gradient breathable light soft underwear fabric according to claim 1, characterized in that, In the dynamic exhaust structure, the elastic fibers are distributed along the circumference of the air-permeable chamber (4), when the fabric is subjected to a stretching force, the elastic fibers are deformed to drive the bottom of the air-permeable chamber (4) to protrude towards the windproof surface layer (3) to increase the effective area of the first air-permeable hole (401).

5. A gradient breathable light soft type underwear fabric according to claim 1, characterized in that, The array spacing of the moisture guide structure (201) is 8-10 mm and is distributed in a regular hexagon, the height of the moisture guide structure (201) is consistent with the spacing between the skin layer and the gradient air-permeable layer (2), and is 0.2-0.3 mm.

6. A gradient breathable light soft type underwear fabric according to Claim 1, wherein The windproof surface layer (3) is a base fabric interwoven by nylon and polyurethane, the surface of the windproof surface layer (3) is coated with an ultrathin hydrophobic coating, the porosity of the windproof surface layer (3) corresponding to the first air-permeable hole (401) is 40%-45%, and the porosity of the remaining area is ≤20%.

7. A gradient breathable light soft type underwear fabric according to Claim 1, wherein The fabric of the skin contact layer (1) has a weight of 80-100 g / m 2 The friction coefficient of the skin contact side of the skin contact layer (1) is ≤ 0.

15.

8. A gradient breathable light soft type underwear fabric according to claim 1, characterized in that, The gradient air-permeable layer (2) is formed by interweaving octagonal hollow polyester fibers and elastic fibers, the hollow rate of the octagonal hollow polyester fibers is 35%~40%, the fabric gram weight of the gradient air-permeable layer (2) is 60~80g / m 2 .

9. A gradient breathable light soft type underwear fabric according to claim 1, characterized in that, The cross-section of the moisture guide structure (201) has four axial grooves, the depth of the grooves is 0.05-0.1 mm, the grooves are in one-to-one communication with the grooves of the profiled modified fibers of the skin layer (1), and a continuous capillary moisture guide channel is formed.

10. A gradient breathable light soft type underwear fabric as claimed in claim 1, wherein, The total thickness of the fabric is 0.8-1.2 mm, and the total gram weight is not more than 250 g / m 2 ; In the dynamic exhaust structure, the elastic fibers are polyurethane elastic filaments with a linear density of 40-70D, the elastic fibers are integrally knitted with the skeleton of the air-permeable chamber (4), and the elastic fibers are spirally wound and distributed along the circumference of the air-permeable chamber (4), and the chamber sidewall of the air-permeable chamber (4) adopts elastic warp knitting jacquard organization.

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