Non-liner down-proof breathable chinlon elastic fabric
By using irregularly shaped hollow nylon 66 yarn and nylon 6,10 blended fibers combined with a water-based polyurethane foam layer, the problems of poor breathability and monotonous texture of liningless downproof fabrics are solved, achieving a comprehensive improvement in high breathability, warmth and fashion sense.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-03-27
- Publication Date
- 2026-04-10
AI Technical Summary
Existing downproof fabrics without linings struggle to balance breathability and downproof performance. Conventional coatings result in poor breathability, limited texture variation, and a lack of fashion sense.
Using nylon 66 yarn with irregular hollow cross section and nylon 6,10 blended fiber as warp and weft yarns, combined with water-based polyurethane foam layer, to form the main fabric layer and foam layer, improving the fabric's downproof, breathable, warm and elastic properties.
It achieves a lining-free, down-proof, and breathable effect, while also possessing excellent warmth retention and a fashionable look. It overcomes the shortcomings of traditional fabrics in terms of breathability and down-proof performance, thus improving the overall performance of the fabric.
Smart Images
Figure CN224106158U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of textile fabric, especially to a no-belly anti-down breathable polyamide elastic fabric. BACKGROUND
[0002] Down products are comprehensive practical products which are made of the down of domestic ducks and geese as filling material, constructed by down fabric, and sewn together. The down fabric, as a key component of the down products, plays a decisive role in the stability of the overall quality of the down products.
[0003] With the continuous improvement of living standards, consumers' requirements for wearing are no longer limited to simple warmth, but have risen to functional needs in many aspects such as environmental protection, fashion, comfort, and warmth. At the same time, the tide of national movement is rising, and products with elasticity, lightness, and low weight are widely concerned.
[0004] At present, in order to achieve the no-belly anti-down effect of the fabric, most of the fabrics are treated by using plain weave. However, the texture of such products is single and the fashion sense is poor. If the fabric is to have a certain texture, it is difficult to ensure its anti-down performance by relying only on the pressing method, and therefore it is often necessary to use coating or other processes to ensure the anti-down effect. However, the conventional coating has too high density, resulting in poor air permeability of the fabric.
[0005] Therefore, the utility model is developed through in-depth thinking and active research and improvement. SUMMARY
[0006] The utility model aims at overcoming the defects of the prior art and providing a no-belly anti-down breathable polyamide elastic fabric.
[0007] In order to achieve the above purpose, the solution of the utility model is as follows:
[0008] A no-belly anti-down breathable polyamide elastic fabric has a fabric main layer, which is woven from warp yarns and weft yarns according to a certain weave style, the warp yarns are selected from polyamide 66 yarns with a special-shaped hollow section, and the weft yarns are a mixture of polyamide 6, 10 and polyamide 6, the back of the fabric main layer is provided with an underlayer, which is a foaming layer, and the foaming layer is attached to the fabric main layer by foaming process of water-based polyurethane.
[0009] Further, the weave style of the fabric main layer is any weave style other than plain weave.
[0010] Further, the hollow part of the polyamide 66 yarn with a special-shaped hollow section is a regular triangle.
[0011] Further, the hollow section of the shaped hollow section of the nylon 66 yarn has a hollow rate of 25%-30%.
[0012] Further, the warp density is 210T-230T, and the weft density is 160T-175T.
[0013] Further, the surface of the fabric main layer is provided with an upper layer, and the upper layer is a polyester film.
[0014] Further, the thickness of the foaming layer is 0.01mm-0.015mm, and the void size is 10 -9 m-10 -7 m.
[0015] After adopting the above structure, in the fabric main layer of the no-chest down-proof and breathable nylon elastic fabric, the warp yarn selects the shaped hollow section of the nylon 66 yarn, the yarn strength of the shaped hollow section is relatively low, but it has good air permeability and warmth retention performance, and the nylon 66 has high strength, wear resistance and cold resistance, etc. The structure of the shaped hollow section can effectively improve the tear strength and breaking strength of the finished fabric, and improve the wear resistance, especially in cold winter, the effect is more obvious. The weft yarn selects the mixed fiber synthesized by nylon 6, 10 and nylon 6. Because the boiling shrinkage of nylon 6, 10 and nylon 6 is inconsistent, the shrinkage degree is different, so the elastic effect is generated. The foaming layer can improve the warmth retention performance and down-proof effect of the fabric main layer, so that the fabric has the effects of no-chest down-proof, warmth retention, air permeability, elasticity and fashion sense. BRIEF DESCRIPTION OF DRAWINGS
[0016] Figure 1 It is a structural schematic diagram of the utility model.
[0017] Figure 2 It is a schematic diagram of the fabric main layer of the utility model.
[0018] Figure 3 It is an enlarged schematic diagram of the warp yarn section of the fabric main layer of the utility model. DETAILED DESCRIPTION
[0019] In order to further explain the technical scheme of the utility model, the utility model will be described in detail through specific embodiments.
[0020] As Figure 1 shown, the preferred embodiment of the utility model discloses a no-chest down-proof and breathable nylon elastic fabric, which comprises an upper layer 1, a middle layer 2 and a lower layer 3.
[0021] The upper layer 1 is a layer of polyester film, mainly for the water-repellent effect, to ensure the waterproof effect of the down jacket.
[0022] The middle layer 2 is a fabric main layer, as shown in the drawings Figure 2 The fabric main layer is woven by warp yarns 21 and weft yarns 22 according to a certain weave style, which can be any weave style other than plain weave, to improve the fashion of the fabric. As shown in the drawings Figure 3 The warp yarns 21 are preferably selected from yarns with a special hollow cross-section, and the yarns are preferably selected from polyamide 66. Since the yarns with a special hollow cross-section have relatively low strength, if conventional polyamide 6 is used in combination with the yarns with a special hollow cross-section, the strength of the finished product will be poor and the quality will be unqualified. Polyamide 66 has high strength, wear resistance and cold resistance, and therefore, when used in combination with the yarns with a special hollow cross-section, the tear strength and breaking strength of the finished fabric can be effectively improved, and the wear resistance can be improved, especially in cold winter, the effect is more obvious.
[0023] As shown in the drawings Figure 3 In this embodiment, the hollow part 23 of the yarns with a special hollow cross-section is preferably a regular triangle. Since the structure of the triangle is relatively stable, the shrinkage ratio of the hollow part is not large after the fabric is washed for many times, and the hollow rate changes little, thereby ensuring the warmth retention performance of the fabric.
[0024] The hollow rate of the hollow part of the yarns with a special hollow cross-section is 25%-30%. Within this range, the use of polyamide 66 can maximize the reduction of the fabric weight on the basis of ensuring the strength of the yarns, reduce the weight of the consumer, and maximize the storage of still air, thereby improving the warmth retention performance of the fabric.
[0025] The weft yarns 22 are a hybrid fiber composed of polyamide 6, 10 and polyamide 6. This hybrid fiber is a conventional material, and the polyamide 6, 10 is derived from castor oil and is a bio-based and environmentally friendly material. When it is subjected to high temperature, the shrinkage degree of the polyamide 6, 10 is different from that of the polyamide 6, and therefore, an elastic effect is generated.
[0026] The density of the warp yarns 21 is 210T-230T, and the density of the weft yarns is 160T-175T. Within this range of warp density and weft density, the fabric can have good anti-pilling effect, elasticity and soft hand feeling under the subsequent foaming coating.
[0027] The lower layer 3 is a foaming layer. The foaming layer is attached to the fabric by a foaming process of water-based polyurethane. The foaming layer 3 can improve the warmth retention performance and anti-pilling effect of the fabric main layer. The thickness of the foaming layer 3 is 0.01mm-0.015mm, and the size of the voids is about 10 -9 m-10 -7m (i.e. 1 nanometer-1 micrometer), the foamed layer in this range can effectively fill the pores of the fabric main body layer, form an additional physical barrier to prevent down from the pores of the fabric main body layer, improve the effect of down-proof without down, and the elastic performance of the fabric main body layer is unchanged, and the fabric main body layer can achieve almost no glue feeling, soft hand feeling and good air permeability.
[0028] The above embodiments and drawings are not limited to the product form and style of the utility model, and any appropriate changes or modifications made by any ordinary skilled person in the art shall be considered as not departing from the patent category of the utility model.
Claims
1. A non-cotton, non-pilling, breathable, and stretchable nylon fabric having a fabric body layer, the fabric body layer being woven from warp and weft yarns according to a certain weave style, characterized in that: The warp yarn is selected from a special-shaped hollow section of nylon 66 yarn, the weft yarn is a mixed fiber synthesized by nylon 6, 10 and nylon 6, the back of the fabric main layer is provided with a foaming layer, and the foaming layer is attached on the fabric main layer by foaming process of water-based polyurethane.
2. A non-cotton, non-pilling, breathable, spandex fabric as claimed in claim 1, wherein: The fabric main layer is any one of the organization styles except plain weave.
3. The lining-free, down-proof, and breathable nylon elastic fabric as described in claim 1, characterized in that: The hollow part of the special-shaped hollow section of nylon 66 yarn is a "regular triangle".
4. A non-cotton, non-wool, breathable, spandex-containing fabric as claimed in any one of claims 1 to 3, wherein: The hollow rate of the hollow part of the special-shaped hollow section of nylon 66 yarn is 25%-30%.
5. The lining-free, down-proof, and breathable nylon elastic fabric as described in claim 1, characterized in that: The warp yarn density is 210T-230T, and the weft yarn density is 160T-175T.
6. The lining-free, down-proof, and breathable nylon elastic fabric as described in claim 1, characterized in that: The surface of the fabric main layer is provided with an upper layer, and the upper layer is a polyester film.
7. The lining-free, down-proof, and breathable nylon elastic fabric as described in claim 1, characterized in that: The thickness of the foamed layer is 0.01-0.015 mm, and the size of the voids is 10 -9 m-10 -7 m.