A double core structure elastic yarn and fabric thereof

Abstract

The utility model discloses a kind of ocean regenerated chinlon and cotton blended double-core structure elastic yarn and its fabric, belong to textile industry technical field.The utility model uses ocean regenerated chinlon fiber and cotton fiber mixed spinning composition outer short fiber, is wrapped in the outer layer of parallel arrangement first yarn core and second yarn core.In outer short fiber, the mass ratio of ocean regenerated chinlon fiber is 30-50%, and the used ocean regenerated chinlon fiber is 100% recycled in the regenerated chinlon short fiber made of ocean abandoned fishing net;Further, using double-core structure elastic yarn as weft, inelastic yarn as warp, adopt 3 / 1 twill weave interweave, and the textile structure fabric interwoven according to specific process parameter, both have elasticity and durability, can keep softness, can satisfy the high standard requirement of textile industry.

Description

Technical Field

[0001] This utility model belongs to the field of textile industry technology, specifically relating to a marine recycled nylon and cotton blended double-core elastic yarn and its fabric. Background Technology

[0002] With increasing global awareness of environmental protection, the textile industry faces unprecedented challenges and opportunities. Traditional textile production methods rely heavily on primary resources and generate substantial amounts of waste and pollutants during the production process. This is particularly true for synthetic fibers such as polyester and nylon, where energy consumption and chemical pollution are especially prominent. Furthermore, marine debris, such as discarded fishing nets, not only threatens marine ecosystems but also causes severe environmental pollution.

[0003] Transforming marine waste into recycled fibers can not only reduce marine pollution but also decrease dependence on virgin resources. However, achieving large-scale application of these recycled fibers requires overcoming a series of technical and process challenges to ensure their performance meets the high standards of the textile industry. Therefore, how to effectively utilize these wastes and develop textile materials that meet the needs of comfort and aesthetics while embodying environmental protection has become an urgent problem for the textile industry. Utility Model Content

[0004] The purpose of this utility model is to provide a marine recycled nylon and cotton blended double-core elastic yarn and its fabric. Based on the marine recycled nylon and cotton blended double-core elastic yarn, this utility model further improves the fabric by designing the weaving structure and adding the interlacing of warp and weft yarns, which not only meets people's needs for comfort and aesthetics, but also reflects the concept of environmental protection.

[0005] To achieve the above objectives, the technical solution adopted by this utility model is as follows: In a first aspect, this utility model provides a double-core elastic yarn made of marine recycled nylon and cotton fibers, comprising: an outer short fiber composed of a blend of marine recycled nylon and cotton fibers, wherein the outer short fiber is wrapped with a first yarn core and a second yarn core arranged in parallel.

[0006] As an optimization, the mass ratio of marine recycled nylon fiber in the outer short fiber is 30-50%, the first yarn core is ZT800 polyester filament, and the second yarn core is spandex filament.

[0007] This preferred solution uses a blend of marine recycled nylon and cotton fibers to form an outer layer of short fibers, which encases the yarn, increasing the softness and comfort of the dual-core elastic yarn. The marine recycled nylon fiber accounts for 30-50% of the outer layer's composition, ensuring the yarn's durability and elasticity. The marine recycled nylon fiber used is 100% recycled from discarded marine fishing nets, providing new ideas and technical support for the sustainable development of the textile industry.

[0008] The marine recycled nylon fiber needs to undergo a conditioning pretreatment before use, which includes the following steps: Prepare a conditioning emulsion by mixing soft water and nylon staple filament spinning aid NL-0618 at a mass ratio of 12.5:1. Spray the conditioning emulsion evenly onto the marine recycled nylon fiber at a mass ratio of 12.5:1. After spraying, seal the emulsion with plastic sheeting and leave it for 24 hours.

[0009] This preferred solution involves pre-treatment of the marine recycled nylon fiber before use, which improves the spinning performance of the marine recycled nylon fiber and enables it to maintain stability during spinning.

[0010] As a preferred option, the spinning process of healthy marine recycled nylon fiber and cotton fiber includes: mixing and feeding → cleaning the steel frame → three-stage drawing → roving → spinning → winding. Carding speed: 80 meters / minute, basis weight 22 grams / 5 meters; Drawing process: using a three-stage drawing process to ensure a tighter and more uniform fiber arrangement; Winding splicer cleaning: cleaned at least twice per shift, total yarn defects not exceeding 400 particles; Splice strength: average exceeding 75%, single spindle exceeding 70%, appearance requirement smaller than the original yarn diameter; Self-winding and electro-cleaning parameters: nipple N value 3.2, short and thick S value 1.80, length 1.1 cm; Yarn blackboard nipple: average less than 10 particles, yarn blackboard nipple impurities less than 20 particles.

[0011] This preferred design ensures the quality of the final double-core elastic yarn, laying the foundation for high-quality fabric production.

[0012] The second aspect of this invention provides a fabric woven from a double-core elastic yarn blended with marine recycled nylon and cotton fibers. The fabric is a textile structure formed by the interlacing of warp and weft yarns in a 3 / 1 twill weave. The warp yarns are 8s-21s non-elastic yarns, and the weft yarns are 10s-21s double-core elastic yarns. The non-elastic yarn is formed by spinning a mixture of marine recycled nylon fiber and cotton fiber, with cotton fiber accounting for 70% of the mass and marine recycled nylon accounting for 30% of the mass; the mass ratio of marine recycled nylon fiber to cotton fiber in the weft yarn is the same as that in the warp yarn.

[0013] The complete weaving process of the fabric includes: winding → warping → sizing → reed threading → weaving → grey fabric → inspection → singeing → pre-shrinking → finished product inspection and grading → roll fabric warehousing.

[0014] Winding: Winding the initially spun yarn into a shape suitable for subsequent use; Warping: Arranging multiple yarns in parallel and fixing them on the warp beam in preparation for subsequent processes; Sizing: A process of coating yarn with a sizing agent to enhance its strength and smoothness. Threading the reed: Threading the sized yarn through the reed teeth to ensure the precise position of each yarn; Weaving: Using a loom to weave yarn into greige fabric; Greige fabric inspection: Conduct a quality inspection on the woven greige fabric to ensure that there are no obvious defects or flaws; Singeing: Removing the fuzz from the surface of the fabric by flame treatment, making it smoother; Pre-shrinking: The fabric is pre-shrinked by washing or steam treatment to prevent deformation during subsequent use; Finished product inspection and grading: The finished fabric is inspected and classified in detail to ensure that the product quality meets the standards; Cloth rolls are then stored in warehouses for sale. Finally, qualified products are rolled into rolls of cloth.

[0015] The 3 / 1 twill weave is either a 3 / 1 right twill or a 3 / 1 left twill, with a width of 144.8–147.3 cm and a shrinkage range of -3% to 0% in the warp direction and -12% to 0% in the weft direction. The weft skew variation rate is ±2.5 cm, and the defect score per 100 meters is 16.

[0016] The preferred embodiment produces a fabric that is woven from warp and weft yarns in a 3 / 1 twill weave structure according to specific process parameters. This fabric possesses both elasticity and durability while maintaining softness.

[0017] The beneficial effects of this utility model by adopting the above technical solution are: 1. A blend of marine-recycled nylon and cotton fibers is used to create an outer layer of short fibers, which are then wrapped around the parallel first and second yarn cores. This increases the softness and comfort of the double-core elastic yarn. The marine-recycled nylon fiber accounts for 30-50% of the outer layer, ensuring the yarn's durability and elasticity. The marine-recycled nylon fiber used is 100% recycled from discarded marine fishing nets, providing new ideas and technological support for the sustainable development of the textile industry.

[0018] 2. Furthermore, using double-core elastic yarn as the weft and non-elastic yarn as the warp, and employing a 3 / 1 twill weave according to specific process parameters, this textile fabric possesses both elasticity and durability while maintaining softness. This fabric can be used to produce undyed white denim, coated white denim, or cold transfer printed fabric, satisfying people's needs for comfort and aesthetics while also embodying environmental protection principles. Attached Figure Description

[0019] Figure 1 This is a cross-sectional view of the double-core elastic yarn of marine recycled nylon and cotton fiber blend in this utility model.

[0020] Figure 2 This is a fabric structure made of double-core elastic yarn 3 / 1 right twill (Z twill); the gray area indicates that the warp yarns float on the weft yarns, and the white area indicates that the warp yarns sink below the weft yarns.

[0021] Figure 3 This is a fabric structure made of double-core elastic yarn 3 / 1 left twill (S twill); the gray area indicates that the warp yarns float on the weft yarns, and the white area indicates that the warp yarns sink below the weft yarns.

[0022] In the diagram: 1. Outer short fiber; 2. First yarn core; 3. Second yarn core. Detailed Implementation

[0023] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0024] Please see Figure 1-3 This utility model provides a technical solution: a double-core elastic yarn and its fabric made of marine recycled nylon and cotton blend; the double-core elastic yarn made of marine recycled nylon and cotton blend comprises: an outer short fiber 1 composed of a blend of marine recycled nylon fiber and cotton fiber, the outer short fiber 1 being wrapped with a first yarn core 2 and a second yarn core 3 arranged in parallel. The mass ratio of marine recycled nylon fiber in the outer short fiber 1 is 30-50%, the first yarn core 2 is ZT800 polyester filament, and the second yarn core 3 is spandex filament.

[0025] Specifically, the warp yarn is made by blending 70% Cyclopyllium Fiber with 30% marine recycled nylon that has undergone conditioning pretreatment to form an 8s non-elastic yarn. Weft yarn: 70% of Cyclone C is blended with 30% of marine recycled nylon that has undergone curing pretreatment to form outer short fiber 1. Outer short fiber 1 is wrapped around a 75D ZT800 polyester filament and a 40D spandex filament (with tensile strength of 2.8 times) to form a 12s double core structure elastic yarn.

[0026] The production of the aforementioned warp and weft yarns follows the sequence of coaxial feeding → steel cleaning → three-stage drawing → roving → spinning → winding. Production parameters are strictly set according to the predetermined carding speed, drawing process, winding splicer cleaning frequency, and self-winding electro-cleaning parameters. Specific production parameter settings are as follows: The carding speed is 80 m / min, the basis weight is 22 g / 5 m, and the drawing process involves three drawing steps; the winding twister is cleaned ≥2 times / shift, and the total yarn defects are ≤400; the average twist strength is >75%, and the single spindle strength is >70%, and the twist appearance is smaller than the original yarn diameter; the self-winding and electro-cleaning parameters are set as follows: nipple N value is 3.2, short and thick S value is 1.80, and the length is 1.1 cm; the average number of nipples on the yarn blackboard is <10, and the number of impurities on the yarn blackboard is <20.

[0027] The warp yarn is produced using a normal spinning machine, while the weft yarn is produced using a spinning machine with a double-core structure.

[0028] Results evaluation: The quality of the final warp and weft yarns met the expected standards, the blackboard knots and impurities of the yarn were within the specified range, and the twist strength and appearance also met the design requirements.

[0029] Table 1: Performance Testing of Warp and Weft Yarns Fabrics are produced by weaving warp and weft yarns in a 3 / 1 twill weave according to specific process parameters. These fabrics specifically include the following two structures: The fabric uses a 3 / 1 right-hand twill (Z-twill) weave, with a width of 144.8–147.3 cm. Shrinkage ranges from -3% to 0% in the warp and -12% to 0% in the weft. The weft skew variation is ±2.0 cm, the elastic elongation is 30%, and defects per 100 meters are categorized into 16 points. The 3 / 1 weave diagram of the fabric is shown below. Figure 2 As shown.

[0030] The fabric uses a 3 / 1 left twill weave (S-twill), with a width of 144.8–147.3 cm. Shrinkage ranges from -3% to 0% in the warp and -12% to 0% in the weft. The weft skew variation is ±2.0 cm, the elastic elongation is 30%, and defects per 100 meters are categorized into 16 points. The 3 / 1 weave diagram of the fabric is shown below. Figure 3 As shown.

[0031] The aforementioned fabric combines elasticity and durability with softness. It can be used to produce undyed white denim, coated white denim, or cold transfer printed fabric, satisfying both comfort and aesthetic needs while embodying environmental protection principles.

[0032] Of course, the above description is not limited to the examples above. Technical features of this utility model not described can be implemented by or using existing technology, and will not be repeated here. The above embodiments and drawings are only used to illustrate the technical solution of this utility model and are not intended to limit this utility model. This utility model has been described in detail with reference to preferred embodiments. Those skilled in the art should understand that any changes, modifications, additions or substitutions made by those skilled in the art within the scope of this utility model do not depart from the spirit of this utility model and should also fall within the protection scope of the claims of this utility model.

Claims

1. A double-core elastic yarn, characterized in that, It includes an outer short fiber (1), a first yarn core (2), and a second yarn core (3); The first yarn core (2) and the second yarn core (3) are arranged in parallel to each other, and the outer short fibers (1) are wrapped around the outer periphery of the first yarn core (2) and the second yarn core (3); The outer short fiber (1) is formed by spinning a mixture of marine recycled nylon fiber and cotton fiber. The marine recycled nylon fiber is a nylon short fiber, the first yarn core (2) is ZT800 polyester filament, and the second yarn core (3) is spandex filament.

2. A fabric woven from the double-core elastic yarn of claim 1, characterized in that, It includes warp yarns and weft yarns, which are interwoven in a 3 / 1 twill weave. The warp yarns are 8s-21s non-elastic yarns, and the weft yarns are 10s-21s double-core elastic yarns.

3. The fabric according to claim 2, characterized in that, The 3 / 1 twill weave is either a 3 / 1 right twill weave or a 3 / 1 left twill weave, and the fabric width is 144.8–147.3 cm.

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