Self-heating wool flock flocculus based on multi-component and multi-dimensional design and preparation method of self-heating wool flock flocculus

Abstract

The invention discloses a self-heating wool flock flocculus based on multi-component and multi-dimensional design. The structure of the flock flocculus comprises a one-way moisture guiding functional layer, a self-adaptive damp and hot heat insulation layer and a far infrared nano heating layer from bottom to top. The invention also discloses a preparation method of the self-heating wool down flocculus, which comprises the following steps: carrying out unidirectional hydrophilic gradient finishing on the wool down fibers by using hydrophilic amino silicon oil to design hydrophilic wool down fibers, then blending the hydrophilic wool down fibers with the superfine denier anti-pilling acrylic fibers and the water-soluble vinylon fibers, and carrying out extrusion molding to obtain the self-heating wool down flocculus. And then removing the water-soluble vinylon fibers through water washing treatment to obtain the ultra-light loose wool wool flocculus. Through the innovative multi-component and multi-dimensional design, not only is the moisture absorption and heat preservation performance of the wool wool flocculus improved, but also the gram weight of the material is reduced. The design is suitable for heat preservation requirements in various environments and has wide application prospects and market value.

Description

Technical Field

[0001] This invention belongs to the field of textile materials technology, specifically relating to self-heating wool wadding based on multi-component and multi-dimensional design, and also to a method for preparing self-heating wool wadding based on multi-component and multi-dimensional design. Background Technology

[0002] Wool wadding refers to a soft, sheet-like material made from fine wool fibers through specific processing techniques. It possesses high warmth retention, excellent elasticity, and moisture absorption. However, due to its considerable thickness, it easily absorbs moisture and increases in weight in high-humidity environments, potentially leading to bacterial growth and odor. Furthermore, its substantial weight increases the burden on the wearer during use.

[0003] With the advancement of technology, various functional heat-generating fibers, such as moisture-wicking heat-generating fibers and far-infrared heat-generating fibers, have been developed. However, using these fibers alone is insufficient to meet the needs of clothing in both cold external environments and the damp and cold internal environment of the human body.

[0004] In view of the above problems, the present invention provides a self-heating wool wadding with multi-component and multi-dimensional design and its manufacturing process based on the principle of multi-mechanism heating. It aims to reduce the weight and improve the comfort and durability of wool wadding while maintaining the original advantages of wool wadding. Summary of the Invention

[0005] The purpose of this invention is to provide a self-heating wool wadding sheet based on a multi-component, multi-dimensional design.

[0006] The present invention also aims to provide a method for preparing self-heating wool wadding based on multi-component and multi-dimensional design, which solves the problems of existing wool wadding being prone to moisture absorption and weight gain, and having a high gram weight.

[0007] The first technical solution adopted in this invention is: a self-heating wool wadding based on a multi-component, multi-dimensional design. The structure of the wool wadding, from bottom to top, includes: a one-way moisture-wicking functional layer, an adaptive moisture and heat insulation layer, and a far-infrared nano heating layer. The one-way moisture-wicking functional layer realizes the function of moisture absorption, which can effectively remove sweat from the human body's internal environment and keep the skin surface dry; The adaptive moisture and heat insulation layer completes the function of moisture absorption and heat generation, and has the ability to absorb sweat and generate heat adaptively. The far-infrared nano heating layer realizes the function of far-infrared heating, effectively absorbing far-infrared rays from solar radiation and converting them into heat energy.

[0008] The invention is further characterized in that, Furthermore, the mass ratio of wool, water-soluble vinylon fiber, and fine denier anti-pilling acrylic fiber in the unidirectional moisture-wicking functional layer is 1.2~1.8:1:0.8~0.2; the mass ratio of wool, water-soluble vinylon fiber, and fine denier anti-pilling acrylic fiber in the adaptive moisture-heat insulation layer is 1.8~2:0.5:0.7~0.5; the far-infrared nano heating layer is entirely composed of wool; the mass ratio of wool in the far-infrared nano heating layer to the wool in the unidirectional moisture-wicking functional layer and the adaptive moisture-heat insulation layer is 1.2~1.8:1.8-2:3.

[0009] The multi-dimensional design of this invention is based on two heating mechanisms: moisture absorption and heat generation, and far-infrared heating. The three-layer structure of the wool wadding in this invention is divided into three functional dimensions: (1) Moisture-absorbing dimension, used to remove moisture from the human body's internal environment and prevent sweat from accumulating in the inner layer of the wool wadding; (2) Moisture absorption and heat generation dimension: converting the moisture from the moisture absorption dimension into heat energy; (3) Far-infrared heating dimension, converting the far-infrared energy of solar radiation in the external environment into heat energy.

[0010] The multi-component design is achieved by selecting wool, water-soluble vinylon fiber, and ultra-fine denier anti-pilling acrylic fiber. Each layer has a different material composition and manufacturing process, and the synergistic effect of each layer enhances the functionality of the wool wadding.

[0011] The second technical solution adopted in this invention is a method for preparing self-heating wool wadding based on multi-component, multi-dimensional design. Wool fibers are treated with a hydrophilic amino silicone oil using a unidirectional hydrophilic gradient to create hydrophilic wool fibers. These hydrophilic wool fibers are then blended with ultrafine denier anti-pilling acrylic fibers and water-soluble vinylon fibers. The water-soluble vinylon fibers are then removed through a washing process to obtain an ultralightweight, loose wool wadding. The specific operation steps are as follows: Step 1: Prepare solution A with a wool anti-shrinkage cleaning agent at a mass concentration of 1%-2%; prepare solution B with a moisture-absorbing and softening finishing agent at a mass concentration of 3%-6%; prepare solution C with a moisture-absorbing and heat-generating finishing agent at a mass concentration of 3%-6%; prepare solution D with a far-infrared heat-generating finishing agent at a mass concentration of 3%-6%. Step 2: Treat the wool substrate with solution A at a water temperature of 55-60℃ for 25-30 minutes, then raise the temperature to 75-80℃ and wash for 8-10 minutes to remove odors, and finally dry at 100-110℃ to obtain the pretreated wool substrate. The wool substrate is selected from high-quality wool fibers with a length of 19-24 mm, an average fiber fineness of ≤16.5 μm, and a coarse wool content of ≤2%. The water-soluble vinylon fiber has a length of 38-40 mm and a fiber fineness of 1.5-2.2 dtex, and can be completely hydrolyzed under water temperature conditions of 20-40°C. The fine denier anti-pilling acrylic fiber has a length of 38-40 mm and a fiber fineness of 1.1-1.5 dtex, exhibits an irregular helical shape, and has no obvious crystalline regions, which can provide effective structural support in the material system and make the wadding resistant to water washing and does not deform.

[0012] Step 3: Immerse the pretreated wool substrate and fine denier anti-pilling acrylic fiber in solution B at a temperature of 15-30°C for 10-30 minutes, and finally dry at 100-120°C for 1 hour to obtain unidirectional moisture-wicking pretreated substrate A. Step 4: Immerse the pretreated wool substrate and fine denier anti-pilling acrylic fiber in solution C at a temperature of 15-30℃ for 10-30 minutes; finally, dry at 100-120℃ for 1 hour to obtain adaptive moisture and heat insulation pretreated substrate B. Step 5: Immerse the pretreated wool substrate completely in solution D, set the temperature to 15-30℃, and the time to 10-30 min; finally, dry it at 100-120℃ for 1 hour to obtain far-infrared nano-heating pretreated substrate C. Step 6: Select unidirectional moisture-wicking pretreatment substrate A and water-soluble vinylon fiber. After mixing the materials 3-4 times with a wool-making machine, let them sit for 10-12 hours to obtain unidirectional moisture-wicking functional layer substrate A. Step 7: Select adaptive damp heat insulation pretreatment substrate B, and after the water-soluble vinylon fiber is mixed 3-4 times in a wool-making machine, let it stand for 10-12 hours to obtain adaptive damp heat insulation layer substrate B. Step 8: Select far-infrared nano-heating pretreatment substrate C, add deionized water evenly, and mix it 2-3 times in a mixing machine. After mixing, let it stand for 10-12 hours to obtain far-infrared nano-heating layer substrate C. Step 9: Place the unidirectional moisture-wicking functional layer substrate A, the adaptive moisture-heat insulation layer substrate B, and the far-infrared nano heating layer substrate C into the opening machine for combing to obtain unidirectional moisture-wicking functional flocs A, adaptive moisture-heat insulation flocs B, and far-infrared nano heating insulation flocs C respectively. Step 10: Place the one-way moisture-wicking wadding A, the adaptive moisture-heat insulation wadding B, and the far-infrared nano-heat-generating insulation wadding C into the web-laying machine in sequence for web-laying, and then send them into the needle punching machine. After passing through the needle punching machine, a multi-component, multi-dimensional self-heating wool wadding with fluffy and tightly structured wadding is obtained. Step 11: Place the multi-component, multi-dimensional self-heating wool wadding into a 70-80℃ water bath for 30-40 minutes to dissolve the water-soluble vinylon, rinse for 10-20 minutes, and dry at 100-110℃ to obtain the finished wadding product.

[0013] The invention is further characterized in that, Furthermore, in step 9, the main process parameters of the opening machine are: feed rate: 350-400 g / min; speed difference between the cylinder and the work roll maintained at 10%-20%; roller spacing set at 0.3-0.5 mm; and output flake density of 9-10 g / m³. 2 .

[0014] Furthermore, the net laying speed described in step 10 is controlled at 20-50 m / min, the reciprocating motion frequency is maintained at 2-3 times / second, and the net laying tension is maintained at 5-10 N / m.

[0015] Furthermore, the main process parameters of the acupuncture machine described in step 10 are: acupuncture depth: 8-10 mm, acupuncture density: 40-70 needles / cm². 2 .

[0016] Furthermore, in the unidirectional moisture-wicking functional layer, the ratio of wool, water-soluble vinylon fiber, and fine denier anti-pilling acrylic fiber is 1.2~1.8:1:0.8~0.2; in the adaptive moisture-heat insulation layer, the ratio of wool, water-soluble vinylon fiber, and fine denier anti-pilling acrylic fiber is 1.8~2:0.5:0.7~0.5. Furthermore, to ensure the uniformity of the web formation, the unidirectional moisture-wicking functional wadding A, the adaptive moisture-heat insulation wadding B, and the far-infrared nano-heat-generating insulation wadding C need to be laid in cross-layers. The laying order is: unidirectional moisture-wicking functional wadding A → adaptive moisture-heat insulation wadding B → far-infrared nano-heat-generating insulation wadding C. The ratio of wool fibers in the unidirectional moisture-wicking functional layer and the far-infrared nano-heat-generating layer is maintained at 1.2~1.8:1.8-2:3. Among them, the ratio of fine denier anti-pilling acrylic fibers in unidirectional moisture-wicking functional wadding A and adaptive moisture-heat insulation wadding B is 0.8~0.2:0.7~0.5 to ensure the excellent resilience of the wadding.

[0017] Furthermore, the main component of solution B is a hydrophilic amino silicone oil solution, which is prepared as follows: glacial acetic acid is gradually added to the hydrophilic amino silicone oil, stirred evenly, and then deionized water is added in batches. After filtration, the hydrophilic amino silicone oil solution is obtained. Wherein: the purity of the hydrophilic amino silicone oil is ≥98%; the purity of the glacial acetic acid is ≥98%; the mass ratio of the hydrophilic amino silicone oil to the glacial acetic acid is 1:0.015~0.020; The main component of solution C is a cage-like polyacrylic resin solution, which is prepared as follows: ethylene oxide resin is added to deionized water for dispersion, and then polyacrylic resin solution, hydrophilic fatty acid sulfate and fatty alcohol polyoxyethylene ether are added in sequence and stirred thoroughly to form a uniform cage-like polyacrylic resin mixed solution. Among them, the mass concentration of polyacrylic acid resin solution, ethylene oxide resin, hydrophilic fatty acid sulfate and fatty alcohol polyoxyethylene ether is ≥65%, and their purity is ≥98%; The mass ratio of the polyacrylic acid resin solution, ethylene oxide resin, hydrophilic fatty acid sulfate, and fatty alcohol polyoxyethylene ether is 1~1.2:1 / 6:2:2 / 3; The main component of solution D is a nano-ceramic powder solution, and the specific preparation method is as follows: A solution of nano-ceramic powder with a particle size of 20-30 nm, a far-infrared emissivity of 90%-95%, and a solid content of 20%-30% is dispersed in 3 / 4 of deionized water, and then another 1 / 4 of deionized water is added for thorough dispersion.

[0018] Furthermore, to ensure the uniform mixing of the three components—wool, water-soluble vinylon fiber, and fine denier anti-pilling acrylic fiber—in the unidirectional moisture-wicking functional layer substrate A and the adaptive moisture-heat insulation layer substrate B, it is necessary to process them 3 to 4 times using a wool mixing machine to ensure uniform mixing and prevent uneven distribution of wool flakes during the finishing process.

[0019] Furthermore, the self-heating wool wadding needs to be placed in a 70-80℃ water bath for 30-40 minutes. During the water bath treatment, the level of deionized water should be higher than the wool wadding. Then, rinse with 20-30℃ cold water for 10-20 minutes until the vinylon fibers no longer stick to the wool fibers. Ensure that the wool wadding does not deform during the dissolution of water-soluble vinylon. After that, dry at 100-110℃.

[0020] Compared with the prior art, the beneficial effects of the present invention are: This invention, based on a multi-mechanism heating principle, utilizes a multi-component, multi-dimensional design to construct a self-heating wool wadding with an innovative structure, exhibiting significant positive effects. The wadding consists of three layers: an inner unidirectional moisture-wicking layer that efficiently guides moisture generated during wear outwards; a middle adaptive moisture-heat insulation layer that absorbs moisture and converts it into heat energy, significantly improving the problem of a damp and cold internal environment caused by sweating; and an outer far-infrared nano-heating layer that effectively absorbs and utilizes solar energy, transferring heat to the body through heat conduction and convection, significantly enhancing warmth retention and solving the problem of heat loss caused by a dry and cold external environment. The raw materials used in this invention are all non-toxic, the production process is simple, the investment cost is low, and the materials are readily available, making it suitable for large-scale production. This innovative multi-component, multi-dimensional design not only improves the moisture absorption and warmth retention performance of the wool wadding but also reduces the material's weight. This design is suitable for warmth requirements in various environments and has broad application prospects and market value. Attached Figure Description

[0021] Figure 1 This is a design diagram of the interlayer structure of the self-heating wool wadding sheet based on the multi-component, multi-dimensional design of the present invention; Figure 2 This is a schematic diagram of the longitudinal section of the self-heating wool wadding sheet based on the multi-component, multi-dimensional design of the present invention; Figure 3 This is a schematic diagram of the cage-like polyacrylic resin structure of the present invention.

[0022] In the figure: 1. One-way moisture-wicking functional layer, 2. Adaptive moisture and heat insulation layer, 3. Far-infrared nano heating layer, 4. Longitudinal section of one-way moisture-wicking functional layer, 5. Longitudinal section of adaptive moisture and heat insulation layer. Detailed Implementation

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

[0024] Example 1 The structure of fluffy floss is as follows Figure 1 As shown, from bottom to top, it includes a one-way moisture-wicking functional layer 1, an adaptive moisture and heat insulation layer 2, and a far-infrared nano heating layer 3. The one-way moisture-wicking functional layer 1 realizes the function of moisture absorption, which can effectively remove sweat from the human body's internal environment and keep the skin surface dry. The adaptive moisture and heat insulation layer 2 completes the function of moisture absorption and heat generation, and has the ability to absorb sweat and generate heat adaptively. The far-infrared nano heating layer 3 realizes the function of far-infrared heating, effectively absorbing far-infrared rays from solar radiation and converting them into heat energy.

[0025] The mass ratio of wool, water-soluble vinylon fiber, and fine denier anti-pilling acrylic fiber in the unidirectional moisture-wicking functional layer is 1.5:1:0.5; the mass ratio of wool, water-soluble vinylon fiber, and fine denier anti-pilling acrylic fiber in the adaptive moisture-heat insulation layer is 2:0.5:0.5; the far-infrared nano heating layer is entirely made of wool, and the mass ratio of wool in the far-infrared nano heating layer, the unidirectional moisture-wicking functional layer, and the adaptive moisture-heat insulation layer is 3:1.5:2.

[0026] Example 2 This invention relates to a method for preparing a self-heating wool wadding based on a multi-component, multi-dimensional design. Wool fibers are treated with a hydrophilic amino silicone oil using a unidirectional hydrophilic gradient to design them as hydrophilic wool fibers. Then, the hydrophilic wool fibers are blended with ultra-fine denier anti-pilling acrylic fibers and water-soluble vinylon fibers. Finally, the water-soluble vinylon fibers are removed by water washing to obtain an ultra-lightweight, loose wool wadding.

[0027] Example 3 This invention relates to a method for preparing self-heating wool wadding based on a multi-component, multi-dimensional design. The specific steps are as follows: (1) Material selection: 6500g of wool fiber with an average fiber fineness of ≤16.5μm, coarse wool content of ≤2%, and fiber length of 16-24mm; 1500g of water-soluble vinylon fiber with a fiber fineness of 1.5dtex and a length of 38mm; and 1000g of fine denier anti-pilling acrylic fiber with a fiber fineness of 1.1dtex and a length of 38mm. (2) Preparation of the preparative solution: 217 grams of Yiye 127 cashmere cleaning agent and 6.28 L of water were selected to prepare solution A; the content of RO-SO3Na surface active groups of natural fatty alcohol polyoxyethylene ether in the cashmere cleaning agent reached 60%; Solution B is prepared by mixing 120g of hydrophilic amino silicone oil with 1.88L of deionized water; solution B is prepared by mixing 150g of cage-like polyacrylic resin with 2.85L of deionized water as follows: Figure 3 The uniform cage-like structure of polyacrylic acid resin solution C is shown; 500 g of 30% solid content nano-ceramic powder solution and 2.5 L of deionized water are used to prepare solution D; (3) Substrate pretreatment: 6500g of wool was treated with solution A for 30min at 60℃ water temperature, then heated to 75℃, washed for 10min to remove odor, and dried at 100℃. This was named pretreated wool substrate. 1500g of pretreated wool substrate and 500g of fine denier anti-pilling acrylic fiber were completely immersed in solution B at a temperature of 30℃ for 30 minutes; then dried at 100℃ for 1 hour, and named as unidirectional moisture-guided pretreated substrate A. 2000g of pretreated wool substrate and 500g of fine denier anti-pilling acrylic fiber were completely immersed in solution C at a temperature of 30℃ for 30 minutes and dried at 100℃ for 1 hour. This was named adaptive humid heat insulation pretreated substrate B. 3000g of pretreated wool substrate was completely immersed in solution D at 30℃ for 30 minutes; then dried at 100℃ for 1 hour, and named far-infrared nano-heating pretreated substrate C. (4) After mixing the unidirectional moisture-wicking pretreated substrate A and water-soluble vinylon fiber four times with a wool machine, let it sit for 12 hours to obtain the unidirectional moisture-wicking functional layer substrate A. After the adaptive humid heat insulation pretreatment substrate B and water-soluble vinylon fiber are mixed four times in a wool-making machine, they are left to stand for 12 hours to obtain the adaptive humid heat insulation layer substrate B. The far-infrared nano-heating pretreatment substrate C was uniformly added to deionized water and mixed three times in a wool machine. After being left to stand for 12 hours, the far-infrared nano-heating layer substrate C was obtained. (5) Pre-fabricated single-layer wadding: The unidirectional moisture-wicking functional layer substrate A, the adaptive moisture-heat insulation layer substrate B, and the far-infrared nano-heating layer substrate C are respectively placed into the opening machine for combing; the main process parameters are: feed rate: 380g / min, the speed difference between the cylinder and the working roller is maintained within 10%, and the roller spacing is set to 0.3mm. The output is 10g / m2 of unidirectional moisture-wicking functional wadding A, adaptive moisture-heat insulation wadding B, and far-infrared nano-heating insulation wadding C; (6) Web Formation: Place the unidirectional moisture-wicking wadding A, the adaptive moisture-heat insulation wadding B, and the far-infrared nano-heat-generating insulation wadding C into the web-laying machine for web formation. The web-laying speed is controlled at 40 m / min, the reciprocating motion frequency is maintained at 2-3 times / second, and a suitable web-laying tension of 8 N / m is maintained. Output: 90 g / m 2 Multi-component, multi-dimensional self-heating wool wadding sheet; (7) Needle punching: The carded material is fed into the needle punching machine. The main process parameters of the needle punching machine are: needle punching depth: 9mm, needle punching density: 60 needles / cm. 2 After being needled, a multi-component, multi-dimensional self-heating wool wadding with a fluffy and tightly structured wadding is obtained. (8) Finishing: Place the multi-component, multi-dimensional self-heating wool wadding into an 80°C water bath for 30 minutes to dissolve the water-soluble vinylon, rinse for 15 minutes, and dry at 100°C. (9) Rolling: The multi-component, multi-dimensional self-heating wool wadding is rolled into a finished product with a width of 2 meters.

[0028] Example 4 Based on Example 3, Solution B is mainly composed of a hydrophilic aminosilicone oil solution, and its preparation method is as follows: 1) Hydrophilic amino silicone oil, purity ≥98%; glacial acetic acid, purity ≥98%; deionized water; 2) The ratio of hydrophilic amino silicone oil to glacial acetic acid is 1:(0.015-0.020); 3) Gradually add glacial acetic acid to the hydrophilic amino silicone oil, stir evenly, then add deionized water in batches, filter and obtain a hydrophilic amino silicone oil solution.

[0029] The main component of solution C is a cage-like polyacrylic acid resin solution, and its preparation method is as follows: 1) Use polyacrylic acid resin solution with a concentration ≥65%, ethylene oxide resin, hydrophilic fatty acid sulfate and fatty alcohol polyoxyethylene ether, and their purity ≥98%; deionized water; 2) The mass ratio of polyacrylic acid resin solution, ethylene oxide resin, hydrophilic fatty acid sulfate, and fatty alcohol polyoxyethylene ether is 1~1.2:1 / 6:2:2 / 3; 3) Disperse the ethylene oxide resin in deionized water, then sequentially add a special polyacrylic acid resin solution, hydrophilic fatty acid sulfate, and fatty alcohol polyoxyethylene ether, stirring thoroughly to form a mixture as shown in the image. Figure 3 A uniform cage-like structure of polyacrylic acid resin mixture.

[0030] The main component of solution D is a nano-ceramic powder solution, and the specific preparation method is as follows: 1) Select a nano-ceramic powder solution with a particle size of 20-30 nm, a far-infrared emissivity of 90%-95%, and a solid content of 20%-30%; deionized water; 2) First, add 3 / 4 of the deionized water, then add a nano-ceramic powder solution with a solid content of 20%~30%, and finally add another 1 / 4 of the deionized water to ensure good dispersibility of the solution.

[0031] Example 5 This invention relates to a method for preparing self-heating wool wadding based on a multi-component, multi-dimensional design. The specific steps are as follows: (1) Material selection: 6500g of wool fiber with an average fiber fineness of ≤16.5μm, coarse wool content of ≤2%, and fiber length of 16-24mm; 1500g of water-soluble vinylon fiber with a fiber fineness of 1.5dtex and a length of 38mm; and 1000g of fine denier anti-pilling acrylic fiber with a fiber fineness of 1.1dtex and a length of 38mm. (2) Preparation of the preparatory solution: Select 217 grams of Yiye 127 cashmere cleaning agent, in which the content of RO-SO3Na surface active groups of natural fatty alcohol polyoxyethylene ether reaches 60%, and 6.28L of water to prepare solution A; Solution B is prepared by mixing 120g of hydrophilic amino silicone oil with 1.88L of deionized water; solution C is prepared by mixing 150g of cage-like polyacrylic resin with 2.85L of deionized water; solution D is prepared by mixing 500g of 30% solid content nano-ceramic powder solution with 2.5L of deionized water. (3) Substrate pretreatment: 6500g of wool was treated with solution A for 30min at 60℃ water temperature, then heated to 75℃, washed for 10min to remove odor, and dried at 110℃. This was named pretreated wool substrate. 1500g of pretreated wool substrate and 500g of fine denier anti-pilling acrylic fiber were completely immersed in solution B at a temperature of 20℃ for 20 minutes; then dried at 120℃ for 1 hour, and named as unidirectional moisture-guided pretreated substrate A.

[0032] 2000g of pretreated wool substrate and 500g of fine denier anti-pilling acrylic fiber were completely immersed in solution C at a temperature of 30℃ for 30 minutes and dried at 120℃ for 1 hour. This was named adaptive damp heat insulation pretreated substrate B. 3000g of pretreated wool substrate was completely immersed in solution D at 25℃ for 30 minutes; then dried at 110℃ for 1 hour, and named far-infrared nano-heating pretreated substrate C. (4) After mixing the unidirectional moisture-wicking pretreated substrate A and water-soluble vinylon fiber three times with a wool machine, let it sit for 10 hours to obtain the unidirectional moisture-wicking functional layer substrate A. After the adaptive humid heat insulation pretreatment substrate B and water-soluble vinylon fiber are mixed three times with a wool machine, they are left to stand for 10 hours to obtain the adaptive humid heat insulation layer substrate B. After the far-infrared nano-heating pretreatment substrate C is uniformly added to deionized water and mixed twice in a wool machine, it is left to stand for 10 hours to obtain the far-infrared nano-heating layer substrate C. (5) Pre-fabricated single-layer wadding: The unidirectional moisture-guiding functional layer substrate A, the adaptive moisture-heat insulation layer substrate B, and the far-infrared nano-heating layer substrate C are respectively placed into an opening machine for combing; the main process parameters are: feed rate: 350g / min, the speed difference between the cylinder and the working roller is maintained within 20%, and the roller spacing is set to 0.5mm. Output 9g / m 2 One-way moisture-wicking wadding A, adaptive moisture-heat insulation wadding B, and far-infrared nano-heat-generating insulation wadding C; (6) Web Formation: Place the unidirectional moisture-wicking wadding A, the adaptive moisture-heat insulation wadding B, and the far-infrared nano-heat-generating insulation wadding C into the web-laying machine for web formation. The web-laying speed is controlled at 30 m / min, the reciprocating motion frequency is maintained at 2-3 times / second, and a suitable web-laying tension of 10 N / m is maintained. Output: 100 g / m 2 Multi-component, multi-dimensional self-heating wool wadding sheet; (7) Needle punching: The carded material is fed into the needle punching machine. The main process parameters of the needle punching machine are: needle punching depth: 10mm, needle punching density: 50 needles / cm. 2 After being needled, a multi-component, multi-dimensional self-heating wool wadding with a fluffy and tightly structured wadding is obtained. (8) Finishing: Place the multi-component, multi-dimensional self-heating wool wadding into a 70°C water bath for 30 minutes to dissolve the water-soluble vinylon, rinse for 20 minutes, and dry at 110°C. (9) Rolling: The multi-component, multi-dimensional self-heating wool wadding is rolled into a finished product with a width of 1 meter.

[0033] Example 6 The key innovation of this invention regarding the preparation method of a self-heating wool wadding based on a multi-component, multi-dimensional design lies in the fact that the self-heating wool wadding is designed based on a dual mechanism of moisture absorption and far-infrared heating. Through the synergistic effect of multi-component materials and functional layer structure design, its self-heating performance is improved, thereby achieving efficient warmth retention in various environments. Specifically, as... Figure 1 As shown, the self-heating wool wadding consists of three functional layers: a unidirectional moisture-wicking layer, an adaptive moisture-heat insulation layer, and a far-infrared nano-heating layer. Each layer works in concert to achieve the functions of moisture absorption and wicking, adaptive moisture absorption and heat generation, and far-infrared heat generation, respectively. Specifically, the unidirectional moisture-wicking layer expels body moisture, preventing sweat buildup and subsequent hypothermia, and conducts the sweat to the adaptive moisture-heat insulation layer, converting moisture into heat energy. The outermost far-infrared nano-heating layer absorbs far-infrared rays from external solar energy and converts them into heat energy, further enhancing warmth retention.

[0034] The heating mechanism of self-heating wool wadding is based on a dual mechanism of moisture absorption heating and far-infrared heating: Moisture absorption and heat generation mechanism: The inner unidirectional moisture-wicking layer conducts moisture emitted by the human body and transfers it to the middle adaptive moisture and heat insulation layer. The cage-like polyacrylic resin used in this adaptive moisture and heat insulation layer has a cross-linked network structure and water-absorbing functional groups, which can effectively capture and fix water molecules, converting the kinetic energy of water molecules into internal energy, thereby achieving a heat release effect.

[0035] Far-infrared heating mechanism: The far-infrared heating mechanism is achieved by applying far-infrared nano-ceramic powder in the outermost far-infrared nano-heating layer. This nano-ceramic powder can absorb infrared rays from the external environment, especially far-infrared light waves from solar radiation, and convert them into heat energy. At the same time, the far-infrared wavelength radiation emitted by the nano-ceramic powder matches the vibration frequency of water molecules in the human body, further stimulating molecular vibration, improving heat generation and conduction, and achieving a significant warming effect.

[0036] The self-heating wool wadding achieves its unidirectional moisture-wicking function through the synergistic effect of a unidirectional moisture-wicking layer and an adaptive moisture-heat insulation layer. Due to its multi-dimensional, multi-component design, it forms a... Figure 1 The layered structure is shown. Specifically, the water-soluble vinylon in the unidirectional moisture-wicking functional layer and the adaptive moisture-heat insulation layer undergoes complete hydrolysis after finishing treatment. The unidirectional moisture-wicking functional layer forms larger pores, while the adaptive moisture-heat insulation layer forms smaller pores. Due to the layering effect, the pore size between the unidirectional moisture-wicking functional layer and the adaptive moisture-heat insulation layer gradually decreases, forming a humidity gradient. (The longitudinal section 4 of the unidirectional moisture-wicking functional layer and the longitudinal section 5 of the adaptive moisture-heat insulation layer after needle punching are shown in the figure.) Figure 2 (As shown) This effectively increases the positive moisture transport index inside the wool wadding, thereby significantly improving the moisture transport efficiency of the fabric.

[0037] Through testing and comprehensive analysis, it was found that compared with the wadding prepared by existing traditional methods, the weight of the present invention is reduced by more than 5%, the warmth retention is improved by more than 10%, and the moisture permeability and breathability are improved by more than 3%, showing a significant improvement in overall performance.

[0038] The preferred embodiments of the present invention disclosed above are merely illustrative of the invention. These preferred embodiments do not exhaustively describe all details, nor do they limit the invention to any specific implementation. Clearly, many modifications and variations can be made based on the content of this specification. This specification selects and specifically describes these embodiments to better explain the principles and practical applications of the invention, thereby enabling those skilled in the art to better understand and utilize the invention. The invention is limited only by the claims and their full scope and equivalents.

Claims

1. A self-heating wool flannel based on a multi-component and multi-dimensional design, characterized in that: The structure of the plush flakes comprises, from bottom to top, a unidirectional moisture-conducting functional layer (1), an adaptive moisture-heat insulation layer (2) and a far-infrared nano-heat-generating layer (3). The one-way moisture conducting functional layer (1) realizes the function of moisture absorption, and can effectively conduct sweat from the human body environment to keep the skin surface dry; The self-adaptive heat-insulating layer (2) performs the functions of moisture absorption and heat generation, and has the ability to absorb sweat and perform self-adaptive heat generation; The far-infrared nano heating layer (3) realizes the function of far-infrared heating dimension, effectively absorbs far-infrared radiation from the sun and converts it into thermal energy.

2. The self-heating wool flannel based on multi-component and multi-dimensional design according to claim 1 is characterized in that: The mass ratio of wool fleece, water-soluble vinylon fiber and fine-denier anti-pilling acrylic fiber in the one-way moisture-conducting functional layer (1) is 1.2-1.8:1:0.8-0.2; the mass ratio of wool fleece, water-soluble vinylon fiber and fine-denier anti-pilling acrylic fiber in the self-adaptive moisture-heat insulation layer (2) is 1.8-2:0.5:0.7-0.5; the far-infrared nano heating layer (3) is entirely wool fleece, and the mass ratio of wool fleece in the far-infrared nano heating layer, the one-way moisture-conducting functional layer and the self-adaptive moisture-heat insulation layer is 1.2-1.8:1.8-2:

3.

3. The method for preparing the self-heating wool flannel based on multi-component and multi-dimensional design according to claim 1, characterized in that: The specific steps are as follows: Step 1: Prepare a wool fleece shrink-proof cleaning agent with a mass concentration of 1%-2% as solution A, a hygroscopic softening finishing agent with a mass concentration of 3%-6% as solution B; prepare a hygroscopic heating finishing agent with a mass concentration of 3%-6% as solution C; prepare a far-infrared heating finishing agent with a mass concentration of 3%-6% as solution D; Step 2: Treat the wool with solution A for 25-30 minutes at 55-60°C, then heat to 75-80°C, wash for 8-10 minutes to remove odor, and finally dry at 100-110°C to obtain a pretreated wool substrate; Step 3: Immersing the pretreated wool fleece substrate and fine-denier anti-pilling acrylic fiber in solution B at a temperature of 15-30° C. for 10-30 min, and finally drying at 100-120° C. for 1 hour to obtain a unidirectional moisture-conducting pretreated substrate A; Step 4: Immersing the pretreated woolen fleece substrate and fine-denier anti-pilling acrylic fiber in solution C at a temperature of 15-30° C. for 10-30 min; finally drying at 100-120° C. for 1 hour to obtain an adaptive wet heat insulation pretreated substrate B; Step 5: completely immerse the pretreated wool velvet substrate in solution D, set the temperature to 15-30°C, and the time to 10-30min; finally, dry at 100-120°C for 1 hour to obtain a far-infrared nano-heat pretreated substrate C; Step 6: Select a unidirectional moisture-conducting pretreated substrate A and a water-soluble vinylon fiber, mix them in a wool mixing machine for 3 to 4 times, and then place them in a sealed container for 10 to 12 hours to obtain a unidirectional moisture-conducting functional layer substrate A; Step 7: After selecting the self-adaptive heat and moisture insulation pretreatment substrate B and mixing the water-soluble vinylon fiber 3-4 times in a wool mixing machine, the mixture is placed in a simmering machine for 10-12 hours to obtain the self-adaptive heat and moisture insulation layer substrate B; Step 8: select far-infrared nano heating pretreatment substrate C, add deionized water evenly, mix it in a kneading machine 2-3 times, and then place it in a sealed container for 10-12 hours to obtain far-infrared nano heating layer substrate C; Step 9: Put the unidirectional moisture conduction functional layer substrate A, the self-adaptive moisture heat insulation layer substrate B, and the far-infrared nano heating layer substrate C into an opening machine for combing, respectively, to obtain the unidirectional moisture conduction functional flakes A, the self-adaptive moisture heat insulation flakes B, and the far-infrared nano heating insulation flakes C; Step 10: Put the one-way moisture-conducting functional floccules A, the self-adaptive moisture-heat insulation floccules B and the far-infrared nano-heat insulation floccules C into a web laying machine in turn for cross-layered web laying, and then send them into a needle punching machine to obtain a multi-component and multi-dimensional self-heating wool floccules with fluffy floccules and a compact structure; Step 11: Place the multi-component and multi-dimensional self-heating wool flannel into a 70-80°C water bath for constant temperature treatment for 30-40 minutes, then rinse with cold water for 10-20 minutes, and dry at 100-110°C to make the finished product.

4. The method for preparing the self-heating wool flannel based on multi-component and multi-dimensional design according to claim 3 is characterized in that: In step 2, the wool fleece substrate is selected from high-quality wool fleece with a length of 19-24 mm, an average fiber fineness of ≤16.5 μm, and a coarse hair content of ≤2%; the water-soluble vinylon fiber has a length of 38-40 mm, a fiber fineness of 1.5-2.2 dtex, and can be completely hydrolyzed at a water temperature of 20-40°C; the fine denier anti-pilling acrylic fiber has a length of 38-40 mm, and a fiber fineness of 1.1-1.5 dtex.

5. The method for preparing the self-heating wool flannel based on multi-component and multi-dimensional design according to claim 3 is characterized in that: The main process parameters of the opener in step 9 are: feed rate: 350-400g / min, speed difference between cylinder and working roller is kept at 10%-20%, roller spacing is set to 0.3-0.5 mm; output flake density is 9-10g / m 2 .

6. The method for preparing the self-heating wool flannel based on multi-component and multi-dimensional design according to claim 4, characterized in that: In step 10, the web laying speed is controlled at 20-50 m / min, the reciprocating motion frequency is maintained at 2-3 times / second, and the web laying tension is maintained at 5-10 N / m.

7. The method for preparing the self-heating wool flannel based on multi-component and multi-dimensional design according to claim 4, characterized in that: The main process parameters of the acupuncture machine in step 10 are: acupuncture depth: 8-10mm, acupuncture density: 40-70 punctures / cm 2 .

8. The method for preparing the self-heating wool flannel based on multi-component and multi-dimensional design according to claim 4, characterized in that: The ratio of wool fleece, water-soluble vinyl fiber and fine-denier anti-pilling acrylic fiber in the one-way moisture-conducting functional layer is 1.2~1.8:1:0.8~0.2; The ratio of wool fleece, water-soluble vinyl fiber and fine denier anti-pilling acrylic fiber in the adaptive moisture-heat insulation layer is 1.8~2:0.5:0.7~0.5; the ratio of wool fleece in the unidirectional moisture-conducting functional layer and the far-infrared nano heating layer is maintained at 1.2~1.8:1.8-2:

3.

9. The method for preparing the self-heating wool flannel based on multi-component and multi-dimensional design according to claim 4, characterized in that: The mass ratio of the fine-denier anti-pilling acrylic fiber in the unidirectional moisture-conducting functional flocculent sheet A and the self-adaptive moisture-heat insulation flocculent sheet B is 0.8-0.2:0.7-0.

5.

10. The method for preparing the self-heating wool flannel based on multi-component and multi-dimensional design according to claim 4, characterized in that: The main component of solution B in step 1 is a hydrophilic amino silicone grease solution, and the preparation method thereof is as follows: gradually adding glacial acetic acid to the hydrophilic amino silicone oil, stirring evenly, and then adding deionized water in batches, filtering to obtain a hydrophilic amino silicone grease solution; Wherein: the purity of the hydrophilic amino silicone oil is ≥98%; the purity of the glacial acetic acid is ≥98%; the mass ratio of the hydrophilic amino silicone oil to the glacial acetic acid is 1:0.015~0.020; The solution C is mainly composed of a cage-structured polyacrylic acid resin solution, and the preparation method thereof is as follows: ethylene oxide resin is added to deionized water for dispersion, and then the polyacrylic acid resin solution, hydrophilic fatty acid sulfate and fatty alcohol polyoxyethylene ether are added in sequence, and stirred sufficiently to form a uniform cage-structured polyacrylic acid resin mixed solution; Among them; the mass concentration of polyacrylic acid resin solution, ethylene oxide resin, hydrophilic fatty acid sulfate and fatty alcohol polyoxyethylene ether is ≥ 65%, and the purity is ≥ 98%; The mass ratio of the polyacrylic acid resin solution, ethylene oxide resin, hydrophilic fatty acid sulfate and fatty alcohol polyoxyethylene ether is 1-1.2:1 / 6:2:2 / 3; The main component of the solution D is a nano-ceramic powder solution, and the specific preparation method is as follows: Disperse a nano-ceramic powder solution with a particle size of 20-30 nm, a far-infrared emissivity of 90%-95%, and a solid content of 20%-30% in 3 / 4 deionized water, and then continue to add 1 / 4 deionized water for full dispersion.

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