Skin-friendly warm-keeping wool fabric and manufacturing method thereof

Abstract

The invention relates to a skin-friendly warm-keeping wool fabric which comprises a fabric body (1), and the fabric body (1) sequentially comprises a skin-friendly antibacterial layer (11), a fluffy warm-keeping layer (12) and a flexible water repellent layer (13) from inside to outside; a windproof breathable layer (2) is arranged on the outer side of the flexible water repellent layer (13); the fabric main body (1) is formed by vertically interweaving warp yarns and weft yarns in a weft backed weave; the inner layer of the weft backed weave forms a skin-friendly antibacterial layer (11), the middle layer of the weft backed weave forms a fluffy warm-keeping layer (12), and the surface layer of the weft backed weave forms a flexible water-repellent layer (13); the skin-friendly antibacterial layer (11) comprises skin-friendly antibacterial yarns, and the skin-friendly antibacterial yarns are formed by uniformly mixing and spinning 30% by weight of modified wool fibers, 10% by weight of chitosan fibers, 40% by weight of tencel fibers and 20% by weight of superfine bamboo fibers; the fluffy warm-keeping layer (12) comprises wrapping yarn, a core layer of the wrapping yarn is pure wool yarn, and a wrapping layer of the wrapping yarn is SORONA filament; the flexible water-repellent layer (13) comprises flexible water-repellent filaments; the fabric not only has skin-friendly performance and soft and comfortable performance, but also is excellent in warm-keeping performance and high in cost performance.

Description

Technical Field

[0001] The invention belongs to the technical field of textile fabrics, and in particular relates to a wool fabric with skin-friendly and warmth-keeping properties and a manufacturing method thereof. Background Art

[0002] As people's living standards continue to improve, their pursuit of quality of life is getting higher and higher. Many comfortable fabrics that can bring new wearing experiences are sought after by people, and functional comfortable fabrics have a broad market and are favored by consumers.

[0003] According to existing consumer requirements, as the competition pressure in the wool spinning and clothing industries is increasing and profits are getting thinner, customers hope to pursue low costs and develop a new generation of wool fabrics that are cost-effective, more comfortable and warm, and highly functional.

[0004] Therefore, the market is in urgent need of a fabric that has skin-friendly properties, the fluffy warmth retention properties of pure wool, and health properties. This fabric will play a great role in opening up the wool fabric market and improving the cost-effectiveness of wool fabrics. Summary of the invention

[0005] The purpose of the present invention is to provide a skin-friendly and warm wool fabric with skin-friendly and warm-keeping properties, soft and comfortable properties and high cost-effectiveness, provide a production process for producing the fabric, and completely form a production route for a wool fabric with strong functionality and high cost-effectiveness.

[0006] The technical scheme adopted by the present invention is: a skin-friendly and warm wool fabric, comprising a fabric body, wherein the fabric body comprises a skin-friendly and antibacterial layer, a fluffy and warm-keeping layer and a flexible water-repellent layer in order from the inside to the outside; a windproof and breathable layer is arranged on the outside of the flexible water-repellent layer; the fabric body is vertically interwoven by warp and weft yarns in a double weft structure; the inner layer of the double weft structure constitutes a skin-friendly and antibacterial layer, the middle layer constitutes a fluffy and warm-keeping layer, and the surface layer constitutes a flexible water-repellent layer; the skin-friendly and antibacterial layer comprises a skin-friendly and antibacterial yarn, and the skin-friendly and antibacterial yarn is spun by uniformly mixing 30% by weight of modified wool fiber, 10% by weight of chitosan fiber, 40% by weight of Tencel fiber, and 20% by weight of ultrafine bamboo fiber; the fluffy and warm-keeping layer comprises a coated yarn, the core layer of the coated yarn is pure wool yarn, and the coating layer is SORONA filament; the flexible water-repellent layer comprises flexible water-repellent filament; The combination of yarns with different properties and double weft structure makes the fabric not only lower in cost than pure wool fabric, but also better in performance than pure wool fabric; for example, the skin-friendly and antibacterial layer adopts modified wool fiber, chitosan fiber, Tencel fiber, and ultra-fine bamboo fiber, so that the fabric has the fluffy touch of wool, the antibacterial effect of chitosan, and the skin-friendliness of Tencel and bamboo fiber; it overcomes the problem of insufficient skin-friendliness of wool fabric.

[0007] The fluffy and soft layer uses pure wool yarn as the core layer and SORONA filament covered yarn as the covering layer. The SORONA filament covering not only improves the strength of the yarn and the weaving efficiency, but also the elasticity of SORONA makes the wool fibers in the core layer have better fluffy performance after shrinking.

[0008] Furthermore, the surface weft of the double weft structure is 1 / 3 twill, the inner weft is 3 / 1 twill, and the arrangement ratio of the surface weft to the inner weft is 1:1.

[0009] Furthermore, the pure wool yarn is mercerized wool or shrink-proof wool.

[0010] Furthermore, the preparation method of the modified wool fiber comprises the following steps: I. Wool pretreatment: The wool fiber is immersed in a wool detergent under the action of ultrasound for 20 minutes; the weight ratio of each component in the wool detergent to the wool is: 3.5% urea peroxide, 1.2% sodium polyphosphate, 2% sodium carbonate, 2% sodium sulfate, 1% sodium ethylenediaminetetraacetic acid, 0.4% sodium carboxymethyl cellulose, 0.25% fatty alcohol polyoxyethylene ether, and 0.15% sodium fatty acid methyl ester sulfonate; the wool fiber after being washed with the detergent is immersed in distilled water under the action of ultrasound for repeated washing for 10 minutes to remove impurities and detergent on the surface of the wool fiber; the oscillation frequency of the ultrasonic wave is 30KHz; II. Wool scale removal: Immerse the pretreated wool in a 98% formic acid solution, heat the solution to 100°C and keep it warm for 10 minutes; then take out the wool and place it in an ultrasonic oscillation tank filled with distilled water for 5 minutes; the weight ratio of formic acid in the formic acid solution to wool is 90:1, and the oscillation frequency of the ultrasonic wave is 19KHz; III. Preparation of chitosan solution: dissolving chitosan in an acetic acid aqueous solution having a mass concentration of 2% to 5% to prepare a chitosan acetic acid solution having a mass concentration of 40 g to 50 g / L; IV. Preparation of modified wool fiber containing chitosan and silver ions: soak the scaled wool fiber in a treatment solution, bombard the wool fiber with a low-temperature plasma device for 30 minutes and then take it out, then pre-bake the treated wool fiber at 70°C for 10 minutes, and then bake it at 110°C for 3 minutes; in the treatment solution, the weight ratio of each component to the wool fiber is: 20% chitosan acetic acid solution with a concentration of 40g~50g / L, 2% 0.03mol / L~0.04mol / L silver nitrate aqueous solution, and 0.5% sodium hypophosphite; the low-temperature plasma treatment conditions are: argon gas, pressure 20Pa, power 100W, time 100s.

[0011] In the preparation process of modified wool fiber, firstly, during the pretreatment of wool, a multi-component cleaning agent is combined with ultrasonic vibration to fully clean the wool, which is not only beneficial for spinning, but also beneficial for the subsequent processing of wool. Secondly, the wool is descaled, which is not only beneficial for improving the anti-felting performance of the fabric, but also beneficial for improving the effect of the subsequent plasma treatment, thereby facilitating the penetration of chitosan and the grafting of silver ions. Thirdly, after the plasma treatment, the wool surface has better permeability, which is beneficial for the penetration and adhesion of chitosan; after the plasma treatment, the wool fiber surface has many negatively charged groups, which can be grafted with silver ions, so that the wool surface has silver ions. The modified wool fiber prepared by the above means has the fluffy nature of wool and the antibacterial properties of silver ions and chitosan.

[0012] The second aspect of the present invention is to provide a method for manufacturing the skin-friendly and warm wool fabric as described above, comprising the following steps: A) Weaving: The warp yarn is made of covered yarn, the surface weft is made of flexible water-repellent filament, and the lining weft is made of skin-friendly antibacterial yarn with a fineness of 32S, which are interwoven on an air-jet loom to form a wool fabric. The fineness of the core layer of the covered yarn is 120 / 2Nm, and the fineness of the SORONA filament of the covering layer is 50D; the flexible water-repellent filament is a colored SORONA filament that has been subjected to water-repellent modification treatment, and the fineness is 150D; B) Pretreatment: The grey fabric woven on the air jet loom is subjected to singeing, heat setting, padding treatment liquid, cold stacking, water washing, dehydration and opening, and heat setting in sequence to obtain the semi-finished fabric after pretreatment; C) Windproof finishing: Coat the flexible water-repellent surface of the semi-finished fabric with a windproof finishing agent to obtain a windproof and breathable layer.

[0013] Furthermore, in the step A), the preparation method of the flexible water-repellent filament is: first, glycerol and glucose are used as raw materials, and 1,3-propylene glycol is produced using a bio-based enzyme as a catalyst; then, fluoroacrylamide is added to 1,3-propylene glycol, and 2,2-difluoro-1,3-propylene glycol is prepared by ultrasonic vibration and ultraviolet irradiation; then, purified terephthalic acid is added to 2,2-difluoro-1,3-propylene glycol, and after copolymerization and spinning, SORONA flexible water-repellent filaments containing fluorine are formed.

[0014] The SORONA filaments with fluorine element formed by copolymerization not only have the elasticity of SORONA, but also have the water-repellent property of fluorine element. The prepared flexible water-repellent layer makes the fabric softer and has excellent water-repellency.

[0015] Furthermore, in the step C), the windproof finishing agent comprises: 30-40 g / L of methyl methacrylate-modified waterborne polyurethane and 10-20 g / L of monomer silicone oil emulsion.

[0016] Furthermore, the windproof finishing in step C) is to evenly apply the windproof finishing agent on the surface of the flexible water-repellent layer, and then form a dense windproof film after drying in a setting machine; the temperature of the setting machine is 160°C and the speed is 28m / min.

[0017] The windproof film formed by coating with methyl methacrylate modified waterborne polyurethane and monomer silicone oil emulsion has softness and low air permeability; however, in order to prevent the fabric from being too stuffy, the composite solution of the concentration of the present invention is used for coating to ensure that the fabric has a certain air permeability.

[0018] The combination of the warmth retention of wool fibers and the windproof membrane gives the fabric better warmth retention; coating the windproof membrane on the flexible water-repellent layer will not cause damage to the wool fibers and will provide better protection for the fabric.

[0019] Compared with the prior art, the advantages of the present invention are: (1) The fabric of the present invention combines yarns with different properties with a double weft structure, so that the fabric is not only lower in cost than pure wool fabric, but also has better performance than pure wool fabric; the skin-friendly and antibacterial layer adopts modified wool fiber, chitosan fiber, Tencel fiber, and ultrafine bamboo fiber, so that the fabric has the fluffy touch of wool, the antibacterial effect of chitosan, and the skin-friendly properties of Tencel and bamboo fiber, thus overcoming the problem that wool fabric is not sufficiently skin-friendly.

[0020] (2) In the preparation process of the modified wool fiber in the fabric of the present invention, a multi-component cleaning agent is used in combination with ultrasonic vibration to fully clean the wool, which is not only beneficial to spinning, but also beneficial to the subsequent treatment of the wool. The wool is subjected to a scale removal treatment, which is not only beneficial to improving the anti-felting performance of the fabric, but also beneficial to improving the effect of the subsequent plasma treatment, thereby facilitating the penetration of chitosan and the grafting of silver ions.

[0021] (3) After the plasma treatment of the present invention, the wool surface has better permeability, which is conducive to the penetration and adhesion of chitosan; after the plasma treatment, the wool fiber surface has many negatively charged groups, which can be grafted with silver ions, so that the wool surface has silver ions. The modified wool fiber prepared by the above means has the fluffy nature of wool and also has the antibacterial properties of silver ions and chitosan.

[0022] (4) The fabric of the present invention combines the warmth retention of wool fibers with the windproof film, so that the fabric has better warmth retention; the windproof film is coated on the flexible water-repellent layer without causing damage to the wool fibers, thereby providing better protection for the fabric. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] Figure 1 This is a schematic diagram of the fabric structure of Example 1 of the present invention.

[0024] Figure 2 This is the organization diagram of the fabric body of Example 1 of the present invention.

[0025] In the figure: 1. Fabric body; 2. Windproof and breathable layer; 11. Skin-friendly and antibacterial layer; 12. Fluffy and warm layer; 13. Flexible water-repellent layer; DETAILED DESCRIPTION

[0026] The present invention is further described in detail below with reference to the accompanying drawings. Example

[0027] like Figure 1-2 As shown, a skin-friendly and warm wool fabric comprises a fabric body 1, wherein the fabric body 1 comprises a skin-friendly and antibacterial layer 11, a fluffy and warm layer 12 and a flexible water-repellent layer 13 from the inside to the outside; a windproof and breathable layer 2 is arranged on the outside of the flexible water-repellent layer 13; the fabric body 1 is formed by vertically interweaving warp and weft yarns in a double weft structure, wherein the surface structure of the double weft structure is 1 / 3 twill, the lining structure is 3 / 1 twill, and the arrangement ratio of the surface weft to the lining weft is 1:1. The inner layer of the double-weft structure constitutes a skin-friendly antibacterial layer 11, the middle layer constitutes a fluffy thermal insulation layer 12, and the surface layer constitutes a flexible water-repellent layer 13; the skin-friendly antibacterial layer 11 comprises skin-friendly antibacterial yarn, which is spun after uniformly mixing 30% by weight of modified wool fiber, 10% by weight of chitosan fiber, 40% by weight of Tencel fiber, and 20% by weight of ultra-fine bamboo fiber; the fluffy thermal insulation layer 12 comprises coated yarn, the core layer of the coated yarn is pure wool yarn, and the pure wool yarn is made of mercerized wool or shrink-proof wool; the coating layer is SORONA filament; the flexible water-repellent layer 13 comprises flexible water-repellent filament; The preparation method of the modified wool fiber comprises the following steps: I. Wool pretreatment: The wool fiber is immersed in a wool detergent under the action of ultrasound for 20 minutes; the weight ratio of each component in the wool detergent to the wool is: 3.5% urea peroxide, 1.2% sodium polyphosphate, 2% sodium carbonate, 2% sodium sulfate, 1% sodium ethylenediaminetetraacetic acid, 0.4% sodium carboxymethyl cellulose, 0.25% fatty alcohol polyoxyethylene ether, and 0.15% sodium fatty acid methyl ester sulfonate; the wool fiber after being washed with the detergent is immersed in distilled water under the action of ultrasound for repeated washing for 10 minutes to remove impurities and detergent on the surface of the wool fiber; the oscillation frequency of the ultrasonic wave is 30KHz; II. Wool scale removal: Immerse the pretreated wool in a 98% formic acid solution, heat the solution to 100°C and keep it warm for 10 minutes; then take out the wool and place it in an ultrasonic oscillation tank filled with distilled water for 5 minutes; the weight ratio of formic acid in the formic acid solution to wool is 90:1, and the oscillation frequency of the ultrasonic wave is 19KHz; III. Preparation of chitosan solution: dissolving chitosan in an acetic acid aqueous solution having a mass concentration of 2% to 5% to prepare a chitosan acetic acid solution having a mass concentration of 40 g to 50 g / L; IV. Preparation of modified wool fibers containing chitosan and silver ions: soaking the scaled wool fibers in a treatment solution, bombarding the wool fibers with a low-temperature plasma device for 30 minutes and then taking them out, then pre-baking the treated wool fibers at 70°C for 10 minutes, and then baking them at 110°C for 3 minutes; in the treatment solution, the weight ratio of each component to the wool fiber is: 20% of 40g~50g / L chitosan acetic acid solution, 2% of 0.03mol / L~0.04mol / L silver nitrate aqueous solution, and 0.5% of sodium hypophosphite; the low-temperature plasma treatment conditions are: argon gas, pressure 20Pa, power 100W, time 100s.

[0028] A method for manufacturing a skin-friendly and warm wool fabric comprises the following steps: A) Weaving: the warp yarn is made of covered yarn, the surface weft is made of flexible water-repellent filament, and the lining weft is made of skin-friendly and antibacterial yarn with a fineness of 32S, which are interwoven on an air-jet loom to form a wool fabric grey cloth; the fineness of the pure wool yarn of the core layer of the covered yarn is 120 / 2Nm, and the fineness of the SORONA filament of the covering layer is 50D; the flexible water-repellent filament is a colored SORONA filament that has been subjected to water-repellent modification and has a fineness of 150D; the preparation method of the flexible water-repellent filament is as follows: first, glycerol and glucose are used as raw materials, and bio-based enzymes are used as catalysts to produce 1,3-propylene glycol; then, fluoroacrylamide is added to 1,3-propylene glycol, and 2,2-difluoro-1,3-propylene glycol is prepared by ultrasonic vibration and ultraviolet irradiation; then, purified terephthalic acid is added to 2,2-difluoro-1,3-propylene glycol, and SORONA flexible water-repellent filaments containing fluorine elements are formed after copolymerization and spinning.

[0029] B) Pretreatment: The grey fabric woven on the air jet loom is subjected to singeing, heat setting, padding treatment liquid, cold stacking, water washing, dehydration and opening, and heat setting in sequence to obtain the semi-finished fabric after pretreatment; C) Windproof finishing: A windproof finishing agent is applied to the surface of the flexible water-repellent layer 13 of the semi-finished fabric to obtain a windproof and breathable layer 2; the windproof finishing is to evenly apply the windproof finishing agent to the surface of the flexible water-repellent layer 13, and then form a dense windproof film after drying in a setting machine; the setting machine temperature is 160°C and the vehicle speed is 28m / min. The windproof finishing agent includes: 30-40g / L of methyl methacrylate modified waterborne polyurethane and 10-20g / L of monomer silicone oil emulsion.

[0030] In addition to the above embodiments, the present invention also includes other implementation modes. Any technical solutions formed by equivalent transformation or equivalent replacement should fall within the protection scope of the claims of the present invention.

Claims

1. A skin-friendly and warm wool fabric, characterized in that: It comprises a fabric body (1), wherein the fabric body (1) The fabric comprises, from the inside to the outside, a skin-friendly antibacterial layer (11), a fluffy thermal insulation layer (12) and a flexible water-repellent layer (13); a windproof and breathable layer (2) is arranged outside the flexible water-repellent layer (13); the fabric body (1) is formed by vertically interweaving warp and weft yarns in a double weft structure; the inner layer of the double weft structure constitutes the skin-friendly antibacterial layer (11), the middle layer constitutes the fluffy thermal insulation layer (12), and the surface layer constitutes the flexible water-repellent layer (13); the skin-friendly antibacterial layer (11) comprises skin-friendly antibacterial yarn, which is spun after uniformly mixing 30% by weight of modified wool fiber, 10% by weight of chitosan fiber, 40% by weight of Tencel fiber, and 20% by weight of ultra-fine bamboo fiber; the fluffy thermal insulation layer (12) comprises a coated yarn, the core layer of the coated yarn is pure wool yarn, and the coating layer is SORONA filament; the flexible water-repellent layer (13) comprises flexible water-repellent filament.

2. The skin-friendly and warm wool fabric according to claim 1, characterized in that: The surface weft of the double weft structure is 1 / 3 twill, the inner weft is 3 / 1 twill, and the arrangement ratio of the surface weft to the inner weft is 1:

1.

3. The skin-friendly and warm wool fabric according to claim 1, characterized in that: The pure wool yarn is mercerized wool or shrink-proof wool.

4. The skin-friendly and warm wool fabric according to claim 1, characterized in that: The preparation method of the modified wool fiber comprises the following steps: I. Wool pretreatment: The wool fiber is immersed in a wool detergent under the action of ultrasound for 20 minutes; the weight ratio of each component in the wool detergent to the wool is: 3.5% urea peroxide, 1.2% sodium polyphosphate, 2% sodium carbonate, 2% sodium sulfate, 1% sodium ethylenediaminetetraacetic acid, 0.4% sodium carboxymethyl cellulose, 0.25% fatty alcohol polyoxyethylene ether, and 0.15% sodium fatty acid methyl ester sulfonate; the wool fiber after being washed with the detergent is immersed in distilled water under the action of ultrasound for repeated washing for 10 minutes to remove impurities and detergent on the surface of the wool fiber; the oscillation frequency of the ultrasonic wave is 30KHz; II. Wool scale removal: Immerse the pretreated wool in a 98% formic acid solution, heat the solution to 100°C and keep it warm for 10 minutes; then take out the wool and place it in an ultrasonic oscillation tank filled with distilled water for 5 minutes; the weight ratio of formic acid in the formic acid solution to wool is 90:1, and the oscillation frequency of the ultrasonic wave is 19KHz; III. Preparation of chitosan solution: dissolving chitosan in an acetic acid aqueous solution having a mass concentration of 2% to 5% to prepare a chitosan acetic acid solution having a mass concentration of 40 g to 50 g / L; IV. Preparation of modified wool fibers containing chitosan and silver ions: soaking the scaled wool fibers in a treatment solution, bombarding the wool fibers with a low-temperature plasma device for 30 minutes and then taking them out, then pre-baking the treated wool fibers at 70°C for 10 minutes, and then baking them at 110°C for 3 minutes; in the treatment solution, the weight ratio of each component to the wool fiber is: 20% of 40g~50g / L chitosan acetic acid solution, 2% of 0.03mol / L~0.04mol / L silver nitrate aqueous solution, and 0.5% of sodium hypophosphite; the low-temperature plasma treatment conditions are: argon gas, pressure 20Pa, power 100W, time 100s.

5. A method for manufacturing a skin-friendly and warm wool fabric, comprising the following steps: A) Weaving: The warp yarn is made of covered yarn, the surface weft is made of flexible water-repellent filament, and the lining weft is made of skin-friendly antibacterial yarn with a fineness of 32S, which are interwoven on an air-jet loom to form a wool fabric. The fineness of the core layer of the covered yarn is 120 / 2Nm, and the fineness of the SORONA filament of the covering layer is 50D; the flexible water-repellent filament is a colored SORONA filament that has been subjected to water-repellent modification treatment, and the fineness is 150D; B) Pretreatment: The grey fabric woven on the air jet loom is subjected to singeing, heat setting, padding treatment liquid, cold stacking, water washing, dehydration and opening, and heat setting in sequence to obtain the semi-finished fabric after pretreatment; C) Windproof finishing: A windproof finishing agent is applied to the surface of the flexible water-repellent layer (13) of the semi-finished fabric to obtain a windproof and breathable layer (2).

6. The method for manufacturing a skin-friendly and warm wool fabric according to claim 5, characterized in that: Said In step A), the preparation method of the flexible water-repellent filament is as follows: first, glycerol and glucose are used as raw materials, and 1,3-propylene glycol is produced using a bio-based enzyme as a catalyst; then, fluoroacrylamide is added to 1,3-propylene glycol, and 2,2-difluoro-1,3-propylene glycol is prepared by ultrasonic vibration and ultraviolet irradiation; then, purified terephthalic acid is added to 2,2-difluoro-1,3-propylene glycol, and after copolymerization and spinning, SORONA flexible water-repellent filaments containing fluorine elements are formed.

7. The method for manufacturing a skin-friendly and warm wool fabric according to claim 5, characterized in that: In the step C), the windproof finishing agent comprises: 30-40 g / L of methyl methacrylate modified waterborne polyurethane and 10-20 g / L of monomer silicone oil emulsion.

8. The method for manufacturing a skin-friendly and warm wool fabric according to claim 5, characterized in that: The windproof finishing in step C) is to evenly apply the windproof finishing agent on the surface of the flexible water-repellent layer (13), and then form a dense windproof film after drying in a setting machine; the temperature of the setting machine is 160°C and the speed is 28m / min.

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