Multifunctional four-way stretch fabric

Abstract

This invention relates to a multifunctional four-way stretch fabric, comprising an ultraviolet-protective layer and a skin-friendly antibacterial layer; the ultraviolet-protective layer and the skin-friendly antibacterial layer are woven together by a pique mesh structure; the pique mesh structure includes an eight-way loop system; wherein, the first, second, fifth, and sixth loop systems are woven to form the skin-friendly antibacterial layer, and the third, fourth, seventh, and eighth loop systems are woven to form the ultraviolet-protective layer; the ultraviolet-protective layer is woven from core-spun yarn (1), and the skin-friendly antibacterial layer is woven from a blended yarn composed of SORONA fiber and modified nylon fiber; the fabric has the properties of breathability, moisture permeability, ultraviolet protection, antibacterial properties, and four-way stretch.

Description

Technical Field

[0001] This invention relates to the field of four-way stretch fabric manufacturing technology, specifically to a four-way stretch fabric with breathable, moisture-wicking, UV-protective, and antibacterial properties. Background Technology

[0002] Four-way stretch fabric, as the name suggests, is a fabric that is elastic in all directions. It adapts to the body's movements, stretching and contracting as needed, providing lightness and comfort, while also maintaining the garment's shape. Areas such as the knees and elbows will not deform or bulge after prolonged wear. With the improvement of people's living standards and increased emphasis on their health and safety, antibacterial properties have been defined as an essential characteristic of textiles.

[0003] Breathability and moisture permeability, as two important indicators for improving the performance of clothing, have always been considered by consumers as crucial performance factors for enhancing the comfort of clothing products. Patent CN216100806U discloses a plain weave four-way stretch fabric with good breathability, comprising a breathable layer, a protective layer, and a skin-friendly layer. The breathable layer is composed of multiple breathable threads woven in a cross shape; the protective layer is composed of multiple protective threads woven in an X shape; and the skin-friendly layer is composed of multiple skin-friendly threads woven in a cross shape. The breathable threads are composed of superspun cotton fibers, polyester fibers, and pure cotton fibers; the protective threads are composed of metal fibers and silver ion fibers; and the skin-friendly threads are composed of silk fibers and plant fibers. Superspun cotton fibers, polyester fibers, and pure cotton fibers are interwoven to form the breathable threads. Although the above four-way stretch fabric has a certain degree of breathability, the overall breathability of the fabric, both internally and externally, is insufficient. Furthermore, the overall stability and tensile strength of the fabric are also inadequate.

[0004] Ultraviolet rays can not only cause textiles to fade and become brittle, but also cause sunburn and aging of human skin, producing melanin and age spots. In severe cases, they can even induce cancer. Therefore, UV protection has been increasingly valued by consumers, and fabrics with UV protection and other functions have emerged.

[0005] In conclusion, the market urgently needs a multifunctional four-way stretch fabric to bring people a more complete and comfortable experience and meet their growing demand for a higher quality of life. Summary of the Invention

[0006] The purpose of this invention is to provide a four-way stretch fabric with breathable, moisture-wicking, UV-protective, and antibacterial properties.

[0007] The technical solution adopted in this invention is as follows: a multifunctional four-way stretch fabric, comprising a UV-protective layer and a skin-friendly antibacterial layer; the UV-protective layer and the skin-friendly antibacterial layer are woven together by a pique knit structure; the pique knit structure includes an eight-way loop system; wherein, the first, second, fifth, and sixth loop systems form the skin-friendly antibacterial layer, and the third, fourth, seventh, and eighth loop systems form the UV-protective layer; the UV-protective layer is woven from core-spun yarn, with an elastic core in the middle of the core-spun yarn, and UV-interference yarn and UV-absorbing yarn spirally wound around the outer side of the elastic core, the UV-interference yarn and UV-absorbing yarn interlacing and spirally wound on the elastic core; the elastic core is a composite fiber with a core-sheath structure, the outer layer being an ethylene-vinyl alcohol copolymer compound and the core layer being polyamide; wherein, when the composite fiber is texturized by a texturing machine, the temperature of the hot air drying oven is controlled to give it high elasticity; the skin-friendly antibacterial layer is woven from a blended yarn composed of SORONA fiber and modified nylon fiber.

[0008] The fabric of this invention is woven with a pique mesh structure, giving it excellent breathability and moisture permeability. The UV protection layer of the fabric is woven with core-spun yarn. The elastic core of the core-spun yarn not only has good elasticity, but the core-sheath structure also gives the core excellent moisture absorption and wicking properties. The outer layer of the core-spun yarn consists of UV-interference yarn and UV-absorbing yarn, which can provide dual UV protection.

[0009] Furthermore, the modified nylon is prepared by the following method:

[0010] ① Preparation of modified nylon chips: 85 parts by weight of caprolactam, 15 parts by weight of polyethylene oxide, 0.3-0.45 parts by weight of antioxidant, 2.2-2.8 parts by weight of metal salt catalyst, 2-5 parts by weight of dehydrating agent, 0.3-0.5 parts by weight of matting agent, 0.5-0.8 parts by weight of dispersant, 0.5-0.8 parts by weight of defoamer and 1-3 parts by weight of silane coupling agent are stirred and mixed evenly, and then extruded and granulated to produce modified nylon chips.

[0011] ② Preparation of antibacterial masterbatch: Ⅰ. ZnO is ground into ZnO powder with a particle size of 0.1μm < D95 < 0.3μm using micro-friction wear technology; Ⅱ. The ZnO powder prepared in step Ⅰ is uniformly dispersed in deionized water, and then sodium polyacrylate is added to obtain a dispersion containing ZnO powder; Ⅲ. 20-25 parts by weight of the dispersion obtained in step Ⅱ is mixed with 70-75 parts by weight of polyamide, 1-3 parts by weight of dispersant, and 1-2 parts by weight of antioxidant, and a nylon-based antibacterial masterbatch containing ZnO powder is produced by a single-screw mixing mechanism.

[0012] ③ Preparation of modified nylon: The nylon-based antibacterial masterbatch containing ZnO powder prepared in step ② and the modified nylon chips prepared in step ① are dried separately and then added to the feed hopper in a weight ratio of 1:9. The raw materials in the feed hopper are melted by a screw extruder and mixed in the spinning box to obtain modified nylon spinning melt containing ZnO powder. The modified nylon spinning melt containing ZnO powder is passed through a metering pump and then through a cross-section spinneret to form modified nylon short fibers with a cross-section structure.

[0013] Modified nylon not only alters the molecular structure of nylon to give the resulting fibers high moisture absorption and a soft, cotton-like feel, but also adds ZnO powder to impart antibacterial properties. During spinning, the cross-section spinneret design further enhances the fiber's moisture-wicking properties. Blending this fiber with the highly elastic SORONA fiber not only imparts good elasticity, high moisture absorption, and good antibacterial properties to the yarn, but also improves its bulkiness and softness.

[0014] Furthermore, the antioxidant is N,N'-1,6-hexylene-bis-[3,5-di-tert-butyl-4-hydroxyphenylpropionamide], the metal salt catalyst is tetraphenylporphyrin metal salt, and the dehydrating agent is an oxazolidine compound.

[0015] Furthermore, the ultraviolet interference yarn is a silver-plated polyester filament with a film thickness of 0.2 mm.

[0016] Furthermore, the ultraviolet-absorbing yarn is a polyester filament treated with an ultraviolet finishing agent.

[0017] Furthermore, the UV-protective finishing agent is UV-protective finishing agent JV-812.

[0018] Compared with the prior art, the ski suit fabric of the present invention has the following advantages:

[0019] (1) The fabric of the present invention is woven with a pique mesh structure, which gives the fabric excellent breathability and moisture permeability. The UV protection layer of the fabric is woven with core-spun yarn. The elastic core of the core-spun yarn not only has good elasticity, but the core-spun yarn structure also gives the core of the yarn excellent moisture absorption and wicking properties. The outer layer of the core-spun yarn contains UV interference yarn and UV absorption yarn, which can play a dual role in UV protection.

[0020] (2) In preparing modified nylon, this invention not only alters the molecular structure of nylon itself to give the prepared fiber high moisture absorption and a soft, cottony feel, but also adds ZnO powder to give it antibacterial properties. During spinning, the cross-section spinneret design gives the fiber moisture-wicking properties. When this fiber is blended with SORONA fiber, which has good elasticity, it not only gives the yarn good elasticity, high moisture absorption, and good antibacterial properties, but also gives the yarn better bulk and softness.

[0021] (3) The fabric of the present invention has antibacterial properties, skin-friendly comfort, UV protection and breathability through the combination of various yarns and the design of the structure. Attached Figure Description

[0022] Figure 1 This is a cross-sectional schematic diagram of the core-spun yarn in a specific embodiment of the present invention;

[0023] Figure 2 This is a weaving diagram of the pique mesh structure in a specific embodiment of the present invention;

[0024] Wherein, 1—core-spun yarn; 11—elastic yarn core; 12—ultraviolet interference yarn; 13—ultraviolet absorption yarn; Detailed Implementation

[0025] The present invention will be further described in detail below with reference to the accompanying drawings and embodiments. Example

[0026] like Figure 1As shown, a multifunctional four-way stretch fabric includes a UV-protective layer and a skin-friendly antibacterial layer. The UV-protective layer and the skin-friendly antibacterial layer are woven together using a pique knit structure. The pique knit structure includes an eight-way loop system. The first, second, fifth, and sixth loop systems form the skin-friendly antibacterial layer, while the third, fourth, seventh, and eighth loop systems form the UV-protective layer. The UV-protective layer is woven from core-spun yarn 1, with an elastic core 11 in the center. UV-interference yarn 12 and UV-absorbing yarn 13 are spirally wound around the outer side of the elastic core 11, and the UV-interference yarn 12 and UV-absorbing yarn 13 are interwoven. The elastic yarn core 11 is spirally wound onto the elastic yarn core 11. The elastic yarn core 11 is a composite fiber with a core-sheath structure, where the sheath layer is an ethylene-vinyl alcohol copolymer and the core layer is polyamide. The composite fiber is given high elasticity by controlling the temperature of the hot air oven during texturing. The UV interference yarn 12 is a silver-plated polyester filament with a fineness of 150D and a film thickness of 0.2mm. The UV absorption yarn 13 is a 150D polyester filament treated with a UV-resistant finishing agent, namely, UV-resistant finishing agent JV-812. The skin-friendly antibacterial layer is woven from a blended yarn with a fineness of 32S, composed of SORONA fiber and modified nylon fiber.

[0027] The fabric of this invention is woven with a pique mesh structure, giving it excellent breathability and moisture permeability. The UV protection layer of the fabric is woven with core-spun yarn. The elastic core of the core-spun yarn not only has good elasticity, but the core-sheath structure also gives the core excellent moisture absorption and wicking properties. The outer layer of the core-spun yarn consists of UV-interference yarn and UV-absorbing yarn, which can provide dual UV protection.

[0028] Furthermore, the modified nylon is prepared by the following method:

[0029] ① Preparation of modified nylon chips: 85 parts by weight of caprolactam, 15 parts by weight of polyethylene oxide, 0.3-0.45 parts by weight of antioxidant, 2.2-2.8 parts by weight of metal salt catalyst, 2-5 parts by weight of dehydrating agent, 0.3-0.5 parts by weight of matting agent, 0.5-0.8 parts by weight of dispersant, 0.5-0.8 parts by weight of defoamer and 1-3 parts by weight of silane coupling agent are stirred and mixed evenly, and then extruded and granulated to produce modified nylon chips.

[0030] ② Preparation of antibacterial masterbatch: Ⅰ. ZnO is ground into powder with a particle size of 0.1 μm < D95 < 0.3 μm using micro-friction abrasion technology; Ⅱ. The ZnO powder prepared in step Ⅰ is uniformly dispersed in deionized water, and then sodium polyacrylate is added to obtain a dispersion containing ZnO powder; Ⅲ. 20-25 parts by weight of the dispersion obtained in step Ⅱ is mixed with 70-75 parts by weight of polyamide, 1-3 parts by weight of dispersant, and 1-2 parts by weight of antioxidant, and mixed using a single-screw compounding mechanism to produce nylon-based antibacterial masterbatch containing ZnO powder. The antioxidant is N,N'-1,6-hexanediol-bis-[3,5-di-tert-butyl-4-hydroxyphenylpropionamide], the metal salt catalyst is tetraphenylporphyrin metal salt, and the dehydrating agent is an oxazolidine compound.

[0031] ③ Preparation of modified nylon: The nylon-based antibacterial masterbatch containing ZnO powder prepared in step ② and the modified nylon chips prepared in step ① are dried separately and then added to the feed hopper in a weight ratio of 1:9. The raw materials in the feed hopper are melted by a screw extruder and mixed in the spinning box to obtain modified nylon spinning melt containing ZnO powder. The modified nylon spinning melt containing ZnO powder is passed through a metering pump and then through a cross-section spinneret to form modified nylon short fibers with a cross-section structure.

[0032] Modified nylon not only alters the molecular structure of nylon to give the resulting fibers high moisture absorption and a soft, cotton-like feel, but also adds ZnO powder to impart antibacterial properties. During spinning, the cross-section spinneret design further enhances the fiber's moisture-wicking properties. Blending this fiber with the highly elastic SORONA fiber not only imparts good elasticity, high moisture absorption, and good antibacterial properties to the yarn, but also improves its bulkiness and softness.

[0033] In addition to the above embodiments, the present invention also includes other embodiments. All technical solutions formed by equivalent transformation or equivalent substitution should fall within the protection scope of the claims of the present invention.

Claims

1. A multifunctional four-way stretch fabric, comprising an ultraviolet-proof layer and a skin-friendly antibacterial layer; characterized in that, The anti-ultraviolet layer and the skin-friendly antibacterial layer are connected by a pearl ground net structure; the pearl ground net structure comprises eight circle forming systems; wherein, the first, second, fifth and sixth circle forming systems are woven to form the skin-friendly antibacterial layer, and the third, fourth, seventh and eighth circle forming systems are woven to form the anti-ultraviolet layer; the anti-ultraviolet layer is woven by a core-spun yarn (1), the core-spun yarn (1) is provided with an elastic yarn core (11) in the middle, the outer side of the elastic yarn core (11) is spirally wound with ultraviolet interference yarn (12) and ultraviolet absorbing yarn (13), the ultraviolet interference yarn (12) and the ultraviolet absorbing yarn (13) are spirally wound on the elastic yarn core (11) and are interlaced with each other; the elastic yarn core (11) is a composite fiber with a skin-core structure, the skin layer is an ethylene-vinyl alcohol copolymer compound, and the core layer is polyamide; wherein, when the composite fiber is subjected to elasticizing by an elasticizer, a higher elasticity is given to the composite fiber by controlling the temperature of a hot air oven; the skin-friendly antibacterial layer is woven by a blended yarn composed of SORONA fiber and modified nylon fiber; the modified nylon is prepared by the following method: ①Preparation of modified nylon chip: 85 parts by weight of caprolactam, 15 parts by weight of polyoxyethylene, 0.3-0.45 parts by weight of antioxidant, 2.2-2.8 parts by weight of metal salt catalyst, 2-5 parts by weight of water removal agent, 0.3-0.5 parts by weight of matting agent, 0.5-0.8 parts by weight of dispersing agent, 0.5-0.8 parts by weight of defoaming agent and 1-3 parts by weight of silane coupling agent are uniformly stirred and mixed, then extruded and granulated to prepare the modified nylon chip; ②Preparation of antibacterial masterbatch: I, ZnO is ground into ZnO powder with a particle size of 0.1 μm < D95 < 0.3 μm by using micro friction and wear technology; II, the ZnO powder prepared in step I is uniformly dispersed in deionized water, and then polyacrylic acid sodium is added to obtain a dispersion liquid containing ZnO powder; III, 20-25 parts by weight of the dispersion liquid obtained in step II, 70-75 parts by weight of polyamide, 1-3 parts by weight of dispersing agent and 1-2 parts by weight of antioxidant are mixed to prepare a nylon-based antibacterial masterbatch containing ZnO powder by using a single screw mixer; ③Preparation of modified nylon: the nylon-based antibacterial masterbatch containing ZnO powder prepared in step ② and the modified nylon chip prepared in step ① are dried respectively, and then added into a feeding bin at a weight ratio of 1:9; the raw materials in the feeding bin are melted by a screw extruder, mixed by a spinning box body to obtain a modified nylon spinning melt containing ZnO powder; the modified nylon spinning melt containing ZnO powder is passed through a cross-section structure spinneret after passing through a metering pump to form a modified nylon short fiber with a cross-section structure.

2. The multifunctional four-way stretch fabric of claim 1, wherein, The antioxidant is N,N'-1,6-hexylene-di- [3,5-di-tert-butyl-4-hydroxyphenylpropionamide], the metal salt catalyst is a tetraphenylporphyrin metal salt, and the water removal agent is an oxazolidine compound.

3. The multi-functional four-way stretch fabric of claim 1, wherein, The ultraviolet interference yarn (12) is a silver-plated polyester filament with a film layer thickness of 0.2 mm.

4. The multi-functional four-way stretch fabric of claim 1, wherein, The ultraviolet absorbing yarn (13) is a polyester filament treated with an ultraviolet finishing agent.

5. The multifunctional four-way stretch fabric of claim 4, wherein, The ultraviolet finishing agent is an anti-ultraviolet finishing agent JV-812. The ultraviolet finishing agent is an anti-ultraviolet finishing agent JV-812.

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