Degradable fabric

Abstract

The utility model discloses a degradable fabric which comprises a plurality of warps and a plurality of wefts which are interwoven, the warps are wrapped yarns and comprise core yarns and skin yarns wrapped outside the core yarns, the core yarns are first elastic composite filaments, the skin yarns are formed by twisting cotton yarns and regenerated cellulose fiber yarns, the wefts are blended yarns, and the skin yarns are formed by twisting cotton yarns and regenerated cellulose fiber yarns. The first elastic composite yarn is formed by twisting degradable polyamide yarn and second elastic composite yarn. The environmental protection problem of a traditional chemical fiber fabric is solved, the warp yarn is endowed with excellent moisture absorption and air permeability through the cotton fibers and the regenerated cellulose fibers, generated high temperature and moisture can be effectively diffused in the degradation process, and the fabric is not prone to falling off in the middle stage of degradation. The temperature and moisture generated locally can be quickly transferred to the whole fabric through the warp yarns, so that the overall degradation rate of the fabric is increased, the mechanical property of the yarns can be improved through the composite stretch yarns and the degradable chinlon, and the tensile strength and the dimensional stability of the fabric are improved.

Description

Technical Field

[0001] This utility model relates to the field of textile fabric technology, and in particular to a biodegradable fabric. Background Technology

[0002] Most fabrics on the market are made of synthetic fibers, such as polyester and nylon. These fabrics are characterized by high strength, durability, and low cost, making them widely used in clothing and home textiles. However, these synthetic fabrics are difficult to degrade in nature, resulting in poor environmental friendliness and microplastic pollution after use, causing significant harm to the environment. While traditional natural fibers (such as cotton, linen, and silk) are biodegradable, their strength, durability, and functionality are limited, making it difficult to meet the high-performance demands of modern clothing and textiles. Utility Model Content

[0003] The purpose of this invention is to provide a biodegradable fabric that combines excellent performance with environmentally friendly characteristics.

[0004] To achieve the above objectives, the technical solution proposed by this utility model is as follows:

[0005] A biodegradable fabric comprises several interwoven warp yarns and several weft yarns, wherein the warp yarns are wrapped yarns, the wrapped yarns include a core yarn and a sheath yarn covering the core yarn, the core yarn is a first composite elastic yarn, the sheath yarn is formed by twisting cotton yarn and regenerated cellulose fiber yarn, and the weft yarns are blended yarns, the blended yarns being formed by twisting biodegradable nylon yarn and a second composite elastic yarn.

[0006] Preferably, the cotton yarn and the regenerated cellulose fiber yarn are twisted together in a spiral, and the biodegradable nylon yarn and the second composite elastic yarn are twisted together in a spiral.

[0007] Preferably, the first composite elastic yarn and the second composite elastic yarn are PTT / PET composite elastic yarn or PBT / PET composite elastic yarn.

[0008] Preferably, the PTT / PET composite elastic yarn is T400.

[0009] Preferably, the regenerated cellulose fiber yarn is made by twisting eucalyptus fiber.

[0010] Preferably, the cotton yarn is made by twisting long-staple cotton.

[0011] Preferably, the fabric is formed by weaving several warp yarns and several weft yarns in a composite twill weave.

[0012] Preferably, the composite twill weave is... .

[0013] Preferably, the twill weave of the composite twill weave is skewed to the right.

[0014] Preferably, the warp and weft fly numbers of the composite twill weave are both 1.

[0015] The beneficial effects of this utility model using the above technical solution are as follows: The warp yarn of the biodegradable fabric of this utility model is a wrapped yarn, including a core yarn and a sheath yarn covering the core yarn. The core yarn is a first composite elastic yarn, and the sheath yarn is formed by twisting cotton yarn and regenerated cellulose fiber yarn. The weft yarn is a blended yarn, formed by twisting biodegradable nylon yarn and a second composite elastic yarn. The warp and weft yarns combine the characteristics of different fibers. By using biodegradable cotton yarn, regenerated cellulose fiber yarn, and biodegradable nylon yarn, the environmental protection problem of traditional chemical fiber fabrics is solved. These yarns release heat and moisture during the degradation process, which increases the local temperature and humidity, thus helping to accelerate the degradation process. At the same time, the cotton yarn and regenerated cellulose fiber yarn give the warp yarn excellent moisture absorption and breathability, which can effectively diffuse the high temperature and moisture generated during the degradation process. This allows the local temperature and moisture generated in the middle of the fabric degradation to be quickly transferred to the entire fabric through the warp yarn, thereby improving the overall degradation rate of the fabric. The composite elastic yarn and biodegradable nylon yarn can improve the mechanical properties of the warp and weft yarns, and improve the tensile strength and dimensional stability of the fabric. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the warp yarn structure of this utility model.

[0017] Figure 2 for Figure 1 A schematic diagram of the structure of the inner bark yarn.

[0018] Figure 3 This is a schematic diagram of the weft yarn structure of this utility model.

[0019] Figure 4 This is an organizational diagram of a preferred embodiment of the present invention.

[0020] Among them: 1. Warp yarn; 11. Core yarn; 12. Leather yarn; 121. Cotton yarn; 122. Regenerated cellulose yarn; 2. Weft yarn; 21. Biodegradable nylon yarn; 22. Second composite elastic yarn. Detailed Implementation

[0021] The present invention will be further described below with reference to the accompanying drawings and specific embodiments.

[0022] The biodegradable fabric of this invention comprises several interwoven warp yarns 1 and several weft yarns 2. Combined with... Figure 1 and Figure 2The warp yarn 1 is a wrapped yarn, comprising a core yarn 11 and a sheath yarn 12 covering the core yarn 11. The core yarn 11 is a first composite elastic yarn, and the sheath yarn 12 is formed by twisting cotton yarn 121 and regenerated cellulose fiber yarn 122. Figure 3 The weft yarn 2 is a blended yarn, which is formed by twisting biodegradable nylon yarn 21 and second composite elastic yarn 22.

[0023] Twisting is the process of bringing together an aggregate of fibers to form yarn. The object of twisting is an aggregate of fibers, which can be of many types, including loose fiber slivers, single yarns, or single filaments. Through twisting: loose fiber slivers are twisted into single yarns; bundles of filaments are twisted into twisted yarns; two or more single yarns or twisted yarns are twisted into plied yarns. Different twisting methods result in different fiber arrangements in the yarn; bundling filaments or short fibers around the main fiber or twisting them with an adhesive can create yarns with unique styles; twisting single yarns of different varieties, colors, or feed rates can create fancy yarns with special appearances; and intertwining or curling bundles of filaments fed at different rates can produce textured yarns. In short, twisting can give yarn a specific structural form and even cause significant differences in its appearance.

[0024] Combination Figure 2 and Figure 3 In some embodiments of this utility model, cotton yarn 121 and regenerated cellulose fiber yarn 122 are twisted together and spirally wound together, and biodegradable nylon yarn 21 and second composite elastic yarn 22 are twisted together and spirally wound together.

[0025] In some embodiments of this utility model, the first composite elastic yarn and the second composite elastic yarn 22 are PTT / PET composite elastic yarn or PBT / PET composite elastic yarn, wherein the PTT / PET composite elastic yarn is preferably T400. The regenerated cellulose fiber yarn 122 is made by twisting eucalyptus fiber. The cotton yarn 121 is made by twisting long-staple cotton.

[0026] Cotton fibers are fine, long, and soft, with good moisture absorption, resistance to strong alkalis, organic solvents, bleach, and heat insulation. Based on fiber fineness, length, and strength, they are generally classified into three types: fine-staple cotton, long-staple cotton, and coarse-staple cotton. Among them, long-staple cotton is fine and long, with a silky sheen, high strength, and fiber lengths reaching 60mm to 70mm. It is of excellent quality and the highest grade of cotton fiber, suitable for making particularly lightweight, fine, or strong cotton fabrics.

[0027] Regenerated cellulose fiber refers to fiber derived from cellulose and its derivatives in plants through dissolution spinning. Many of its physicochemical properties are similar to cotton and linen, but its moisture absorption and breathability are superior to cotton, making it arguably the best among all chemical fibers in this regard. It also possesses some advantages of silk that cotton lacks, resulting in greater comfort, a soft, full, and smooth feel, excellent drape, and a silk-like luster. Yocosil is a wood-derived fiber, its creation process involving everything from plantation to wood chips, dissolution pulp, and finally, Yocosil fiber. Yocosil is a fully biodegradable and recyclable fiber, with a fineness one-third that of silk, making it softer and more comfortable. Its breathability is 20% higher than cotton, with excellent moisture absorption, preventing sweat from feeling stuffy and providing a comfortable feel against the skin. Yocosil fiber has a moisture content of 12%, close to that of human skin, further enhancing its comfort.

[0028] PTT / PET composite elastic yarn is an elastic yarn produced by composite spinning of polypropylene terephthalate and polyethylene terephthalate. Its fiber structure has permanent helical crimp characteristics, good bulkiness, softness and moisture-wicking properties, its color fastness is better than spandex, and it has outstanding memory function, that is, the fiber can maintain its assigned state after being set.

[0029] PBT / PET composite elastic yarn is made from polybutylene terephthalate / polyethylene terephthalate composite pre-oriented yarn through a stretching and deformation process. Its cross-section contains two components with different properties and microstructures, forming a three-dimensional spiral curl structure that gives the fiber excellent elasticity and resilience. PBT / PET composite elastic yarn is an improvement on PTT / PET composite elastic yarn technology, offering better elasticity and a 10% higher elastic recovery rate compared to PTT / PET composite elastic yarn. It also possesses excellent properties such as low static electricity, good abrasion resistance, and low water absorption.

[0030] Biodegradable nylon, also known as bio-based biodegradable polyamide, is a novel type of bio-based fiber made from crops, trees, and other plants and their residues and contents through biological, chemical, and physical methods. It possesses excellent mechanical properties and biodegradability. Examples include a biodegradable antibacterial and antiviral nylon fiber and its preparation method disclosed in invention patent CN117248291A, and a naturally degradable environmentally friendly nylon fiber process disclosed in invention patent CN115125625B.

[0031] This invention combines the characteristics of different fibers in its warp and weft yarns. By utilizing the biodegradability of cotton yarn 121, regenerated cellulose fiber yarn 122, and biodegradable nylon yarn 21, it solves the environmental problems of traditional chemical fiber fabrics. These yarns release heat and moisture during degradation, increasing local temperature and humidity, which helps accelerate the degradation process. At the same time, cotton yarn 121 and regenerated cellulose fiber yarn 122 give the warp yarn 1 excellent moisture absorption and breathability, effectively dissipating the high temperature and moisture generated during degradation. This allows the locally generated temperature and moisture to be quickly transferred to the entire fabric through the warp yarn 1 during the middle stage of fabric degradation, thereby improving the overall degradation rate of the fabric. The first composite elastic yarn, the second composite elastic yarn 22, and the biodegradable nylon yarn 21 can improve the mechanical properties of the warp yarn 1 and weft yarn 2, increasing the tensile strength and dimensional stability of the fabric.

[0032] In some embodiments of this utility model, the fabric is woven from warp yarns 1 and weft yarns 2 in a composite twill weave. The composite twill weave has a rich texture, stable structure, and high strength. The warp yarns 1 and weft yarns 2 are tightly interwoven, which makes it less prone to problems such as tearing, and can further improve the stability of the fabric structure.

[0033] Combination Figure 4 The vertical grid represents warp yarn 1, and the horizontal grid represents weft yarn 2. Black filled grids indicate the interlacing points of warp yarn 1 and weft yarn 2, with warp yarn 1 floating above weft yarn 2. White filled grids indicate that weft yarn 2 floats above warp yarn 1. This composite twill weave can be... The composite twill weave has a right-hand twill direction and a radial and weft count of 1.

[0034] Although the present invention has been specifically shown and described in conjunction with preferred embodiments, those skilled in the art should understand that various changes in form and detail to the present invention without departing from the spirit and scope of the present invention as defined in the appended claims are within the scope of protection of the present invention.

Claims

1. A biodegradable fabric, characterized in that, It includes several interwoven warp yarns (1) and several weft yarns (2); The warp yarn (1) is a wrapped yarn, which includes a core yarn (11) and a sheath yarn (12) covering the core yarn (11). The core yarn (11) is a first composite elastic yarn, and the sheath yarn (12) is formed by twisting cotton yarn (121) and regenerated cellulose fiber yarn (122). The weft yarn (2) is a blended yarn, which is formed by twisting biodegradable nylon yarn (21) and a second composite elastic yarn (22).

2. The biodegradable fabric according to claim 1, characterized in that, The cotton yarn (121) and the regenerated cellulose fiber yarn (122) are twisted together and spirally intertwined; The biodegradable nylon yarn (21) and the second composite elastic yarn (22) are twisted together and spirally intertwined.

3. The biodegradable fabric according to claim 1, characterized in that, The first composite elastic yarn and the second composite elastic yarn (22) are PTT / PET composite elastic yarn or PBT / PET composite elastic yarn.

4. The biodegradable fabric according to claim 3, characterized in that, The PTT / PET composite elastic yarn is T400.

5. The biodegradable fabric according to claim 1, characterized in that, The regenerated cellulose fiber yarn (122) is made by twisting eucalyptus fiber.

6. The biodegradable fabric according to claim 1, characterized in that, The cotton yarn (121) is made by twisting long-staple cotton.

7. The biodegradable fabric according to any one of claims 1 to 6, characterized in that, The fabric is formed by weaving several warp yarns (1) and several weft yarns (2) in a composite twill weave.

8. The biodegradable fabric according to claim 7, characterized in that, The composite twill weave structure is .

9. The biodegradable fabric according to claim 8, characterized in that, The twill weave of the composite twill weave is skewed to the right.

10. The biodegradable fabric according to claim 8, characterized in that, The warp and weft fly numbers of the composite twill weave are both 1.

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