Preparation method of water-washing-resistant cool-feeling soft fabric

Abstract

The present application relates to the field of textile fabric processing, and particularly relates to a preparation method of a washing-resistant cool-feeling soft fabric, comprising the following steps: step 1: base cloth pretreatment: removing oil and impurities, softening and pre-finishing the textile base cloth, and drying to obtain clean pretreated base cloth; step 2: padding loading: immersing the pretreated base cloth into a composite cool-feeling finishing liquid, and carrying out room temperature padding treatment, with the padding rate controlled at 70%-85%; step 3: gradient pre-drying: adopting low-temperature step-by-step pre-drying, and sequentially drying at 65-75 DEG C for 3-6 min and at 85-95 DEG C for 2-4 min to remove free water on the surface of the fabric; step 4: cross-linking fixation: sending the pre-dried fabric into a 110-130 DEG C baking atmosphere, and keeping warm for 4-8 min to fix the composite cool-feeling finishing liquid in the fabric; and step 5: softening post-setting: carrying out tensionless soft setting on the fixed fabric, and cooling and dropping the fabric to obtain the washing-resistant cool-feeling fabric. The cool-feeling fabric prepared by the method has better washing resistance and softness.

Description

Technical Field

[0001] This invention relates to the field of textile fabric processing technology, specifically to a method for preparing a water-resistant, cool-feeling, and soft fabric. Background Technology

[0002] Cooling fabrics, with their instant cooling and comfort upon contact, are widely used in underwear, loungewear, bedding, sportswear, and summer garments, and represent a core research and development direction for high-end functional textile fabrics.

[0003] Existing cooling fabric production technologies mainly fall into two categories: The first category is the spinning melt blending method: cooling powder is directly added to the spinning melt to prepare cooling fibers before weaving the fabric. This method provides good durability of the cooling sensation, but the cooling powder is an inorganic hard particle that disrupts the continuity of fiber macromolecules, leading to increased fiber brittleness, a rough and stiff fabric feel, decreased elasticity, a strong foreign body sensation when worn close to the skin, and extremely poor softness, making it unsuitable for high-end close-fitting fabrics.

[0004] The second type is the conventional finishing coating method: the cooling powder is mixed with ordinary adhesive and directly coated onto the fabric surface. This method is simple and low-cost, but it has fatal flaws: ordinary adhesives can only achieve physical coating of the powder, without chemical bonding between the adhesive and the fiber or powder, resulting in extremely low wash fastness; after a small amount of washing, a large amount of surface powder falls off, and the cooling function quickly fails; at the same time, after the ordinary adhesive forms a film, it forms a continuous hard film layer on the fiber surface, clogging the fabric pores, resulting in stiff, non-breathable, rough-feeling fabric, and a significant reduction in comfort.

[0005] Therefore, it is necessary to provide a new technical solution to overcome the above-mentioned defects. Summary of the Invention

[0006] The purpose of this invention is to provide a method for preparing a water-resistant, cool-feeling, and soft fabric that can effectively solve the above-mentioned technical problems.

[0007] To achieve the objectives of this invention, the following technical solution is adopted: A method for preparing a water-resistant, washable, and cool-feeling soft fabric includes the following steps: Step 1: Base fabric pretreatment: The textile base fabric is degreased, impurities removed, softened and pre-treated, and then dried to obtain a clean pre-treated base fabric; Step 2: Padding Loading: Immerse the pretreated base fabric in the composite cooling finishing solution and pad it at room temperature, controlling the padding rate to 70%-85%; Step 3: Gradient pre-drying: Use low-temperature step-by-step pre-drying, drying at 65-75℃ for 3-6 minutes and at 85-95℃ for 2-4 minutes in sequence to remove free moisture from the surface of the fabric. Step 4: Cross-linking and fixation: Place the pre-dried fabric into a baking atmosphere of 110-130℃ and keep it at that temperature for 4-8 minutes to fix the composite cooling finishing liquid into the fabric. Step 5: Softening and shaping: After fixing, the fabric is softened and shaped without tension, cooled and dropped to obtain a washable and cool-feeling fabric.

[0008] Preferably, the textile base fabric is one of pure cotton fabric, polyester-cotton blended fabric, modal fabric, Tencel fabric, or nylon-spandex elastic fabric.

[0009] Preferably, in step 2, the composite cooling finishing liquid is prepared in the following weight proportions: The mixture consists of 30-55 parts of modified composite cooling powder, 12-25 parts of flexible waterborne polyurethane emulsion, 3-8 parts of silane coupling agent, 2-5 parts of hydroxyl crosslinking agent, 1-3 parts of polyether modified softener, 0.5-2 parts of nonionic penetrant, 0.2-1 parts of antiflocculation dispersant, and the balance being deionized water.

[0010] Preferably, the preparation method of the composite cooling finishing liquid is as follows: Modified composite cooling powder, flexible waterborne polyurethane emulsion, silane coupling agent, hydroxyl crosslinking agent, polyether modified softener, nonionic penetrant, anti-flocculation dispersant, and deionized water are sequentially added to a dispersion tank and dispersed at 3000-5000 r / min for 25-40 min at 25-35℃. After homogenization, a composite cooling finishing liquid is obtained.

[0011] Preferably, the modified composite cooling powder is obtained by combining jade cooling powder, mica cooling powder, and menthol microcapsule cooling powder, and then modifying it by aluminate-silane double coating.

[0012] Preferably, the mass ratio of the jade cooling powder, mica cooling powder, and menthol microcapsule cooling powder is (4-6):(2-3):(1-2).

[0013] Preferably, the particle size of the modified composite cooling powder is 200-800 nm.

[0014] Preferably, in step 2, the flexible waterborne polyurethane emulsion is a hydroxyl-terminated aliphatic waterborne polyurethane with a solid content of 30%-40%.

[0015] Preferably, the silane coupling agent is one or both of γ-aminopropyltriethoxysilane and γ-glycidoxypropyltrimethoxysilane.

[0016] Preferably, the hydroxyl crosslinking agent is one of aziridine crosslinking agents and polyisocyanate blocked crosslinking agents.

[0017] Compared with the prior art, the present invention has the following beneficial effects: 1. This invention discloses a method for preparing a water-washable, cool-feeling, and soft fabric. By employing a dual coupling agent and a dual crosslinking system, chemical anchoring bonds are constructed between the cool-feeling powder and the fiber, significantly improving the bonding strength between the cool-feeling powder and the fabric fiber, effectively solving the problem of easy powder shedding. Simultaneously, by selecting a polyether-modified softener and flexible polyurethane for synergistic effects, and combining it with a smoothing and shaping process, the fabric's softness is not compromised while loading the cool-feeling powder; instead, the fabric's stiffness is reduced, achieving a dual effect of high coolness and ultra-softness.

[0018] 2. This invention discloses a method for preparing a water-washable, cool-feeling, and soft fabric. The fabric prepared using this method exhibits excellent cooling properties, with a contact cooling coefficient Q-max ≥ 0.35 W / (cm²). 2 •K), with a significant cooling effect upon contact; and after 50 washes, the cooling coefficient retention rate is still as high as 92%, with no powder shedding or functional degradation; in addition, the fabric is softer, without clumping or roughness, and has good stability. After multiple washes, there is no yellowing, deformation, or loss of strength, and the strength retention rate is ≥95%. Detailed Implementation

[0019] To make the objectives, technical solutions, and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below. Obviously, the described embodiments are some embodiments of the present invention, but not all embodiments.

[0020] This invention addresses the problems of poor powder adhesion, severe cooling effect attenuation after washing, and poor fabric softness in existing cooling fabrics. By modifying the cooling powder and compounding it with other components, a composite cooling finishing liquid is obtained. The composite cooling finishing liquid is then immersed in the fabric. After processes such as padding, gradient pre-drying, and cross-linking fixation, the cooling powder can be firmly adhered to the fabric, allowing the fabric to maintain its cooling effect and soft hand feel even after multiple washes.

[0021] A method for preparing a water-resistant, washable, and cool-feeling soft fabric includes the following steps: Step 1: Base fabric pretreatment: The textile base fabric is degreased, impurities removed, softened and pre-treated, and then dried to obtain a clean pretreated base fabric.

[0022] Specifically, select one of the following as the textile base fabric: pure cotton fabric, polyester-cotton blended fabric, modal fabric, Tencel fabric, or nylon-spandex elastic fabric. Use 2-5g / L of nonionic degreasing agent and 1-3g / L of chelating dispersant, immerse in water at 55-65℃ for 15-25 minutes, rinse thoroughly with running water until the fabric pH is neutral, and dry at 80-90℃. Control the moisture regain of the base fabric to 2%-4% to obtain a clean, fluffy pretreated base fabric with sufficient surface activity.

[0023] Step 2: Padding load: Immerse the pretreated base fabric in the composite cooling finishing liquid and paddle at room temperature, controlling the padding rate to 70%-85%.

[0024] Specifically, the pretreated base fabric is immersed in the composite cooling finishing solution using a one-dip-one-pinch or two-dip-two-pinch process. The fabric is padded at room temperature for 30-60 seconds, with the padding pressure controlled at 0.3-0.5 MPa. The padding rate is kept stable at 70%-85%, ensuring that the cooling finishing solution penetrates evenly into the fiber interior, rather than just remaining on the surface of the fabric.

[0025] The composite cooling finishing liquid is prepared in the following proportions by weight: The mixture consists of 30-55 parts of modified composite cooling powder, 12-25 parts of flexible waterborne polyurethane emulsion, 3-8 parts of silane coupling agent, 2-5 parts of hydroxyl crosslinking agent, 1-3 parts of polyether modified softener, 0.5-2 parts of nonionic penetrant, 0.2-1 parts of antiflocculation dispersant, and the balance being deionized water.

[0026] The preparation method of the composite cooling finishing liquid is as follows: Modified composite cooling powder, flexible waterborne polyurethane emulsion, silane coupling agent, hydroxyl crosslinking agent, polyether modified softener, nonionic penetrant, anti-flocculation dispersant, and deionized water are sequentially added to a dispersion tank and dispersed at 3000-5000 r / min for 25-40 min at 25-35℃. After homogenization, a composite cooling finishing liquid is obtained.

[0027] It should be further noted that the modified composite cooling powder is obtained by combining jade cooling powder, mica cooling powder, and menthol microcapsule cooling powder, and then modifying it with aluminate-silane double coating; the mass ratio of the jade cooling powder, mica cooling powder, and menthol microcapsule cooling powder is (4-6):(2-3):(1-2); and the particle size of the modified composite cooling powder is 200-800nm.

[0028] This application uses high thermal conductivity jade powder, flake mica cooling powder, and menthol microcapsule powder. The jade powder and flake mica cooling powder can provide an instant cooling sensation upon contact, while the menthol microcapsule powder provides a long-lasting cooling sensation, thus achieving a dual effect of "instant cooling and long-lasting cooling". At the same time, after the powder is modified by aluminate-silane double coating, the particle size is precisely controlled at 200-800nm, which can effectively improve the dispersibility and interfacial bonding activity of the powder, and avoid the problems of powder agglomeration and rough fabric feel.

[0029] The specific steps for aluminate-silane double-coating modification are as follows: Step S1: Weigh out the jade cooling powder, mica cooling powder, and menthol microcapsule powder according to the proportions, and put them all into a high-speed mixing device. Stir at medium to high speed (900~1100r / min) for 8~12 minutes under normal temperature conditions.

[0030] Step S2: Keep the mixed powder in the stirring equipment and slowly heat it to 60~65℃. Stir at a constant temperature for 15~20 minutes to remove free adsorbed water from the powder surface and retain the hydroxyl groups on the particle surface.

[0031] Step S3: Prepare an ethanol-water mixture: Take 8 parts anhydrous ethanol and 2 parts deionized water, stir evenly at room temperature, and then add glacial acetic acid dropwise to adjust the pH of the system to 3.0~4. Weigh the silane coupling agent according to the total mass of the powder, slowly add it to the above solvent, and stir magnetically at room temperature for 20~25 minutes until the silane is completely hydrolyzed and the system is uniformly light milky white, to obtain the hydrolyzed silane solution, and let it stand for later use.

[0032] Step S4: Keep the powder in the mixing equipment at 60~65℃ and 900~1100r / min for high-speed stirring. Add the hydrolyzed silane liquid into the mixing equipment by low-pressure atomization spraying. Spray at a uniform speed for 12~18 minutes. After spraying, continue to stir at a constant temperature of 60~65℃ for 25~30 minutes.

[0033] Step S5: Take a small amount of anhydrous ethanol as a diluent to prepare a 15%~20% ethanol dispersion of aluminate coupling agent. Stir at room temperature until completely homogeneous and free of precipitation. Prepare and use immediately. Then, slightly raise the temperature of the stirring equipment to 75~80℃, maintain high-speed stirring, and atomize and spray the aluminate ethanol dispersion. Add the dispersion within 8~12 minutes, maintain a constant temperature of 75~80℃, and continue stirring for 30~35 minutes.

[0034] Step S6: Heat the stirring equipment to 85~90℃, reduce the speed to 400~600r / min, and stir at a constant temperature for 20~25min to fully remove ethanol and residual water from the system and promote the cross-linking and curing of the silane-aluminate bilayer film; then stop heating, maintain low-speed stirring, and allow it to cool naturally to below 40℃. Use a sieve with a mesh size of 2000 or higher to lightly sieve and break up any small amount of slightly agglomerated particles to obtain the modified composite cooling powder.

[0035] Additionally, it should be noted that in step 2, the flexible waterborne polyurethane emulsion is a hydroxyl-terminated aliphatic waterborne polyurethane with a solid content of 30%-40% and an elongation at break of ≥600%. Its film-forming properties are flexible and non-brittle, without a hard film layer. It can both bear the bonding effect of powder and not damage the softness of the fabric, effectively avoiding the caking defects of traditional adhesives.

[0036] The silane coupling agent is one or both of γ-aminopropyltriethoxysilane and γ-glycidoxypropyltrimethoxysilane; the hydroxyl crosslinking agent is one of aziridine crosslinking agent and polyisocyanate blocked crosslinking agent. By selecting a dual crosslinking system, one end binds to the hydroxyl groups on the surface of the modified cooling powder, and the other end chemically bonds to the hydroxyl and amino groups on the fiber surface, constructing a chemical anchoring bridging layer between the powder and fiber. This transforms physical adhesion into chemical bonding, significantly improving powder adhesion and effectively preventing powder from falling off during washing.

[0037] In addition, the addition of polyether-modified softener can effectively improve the long-lasting softness of the fabric. Through synergistic effect with flexible polyurethane, it can further reduce the stiffness of the fabric and improve the fluffy and skin-friendly feel.

[0038] Step 3: Gradient pre-drying: Low-temperature step-by-step pre-drying is adopted, followed by drying at 65-75℃ for 3-6 minutes and drying at 85-95℃ for 2-4 minutes. The first drying can remove free moisture from the surface of the fabric, and the second drying can allow the finishing solution to initially spread on the fiber surface, achieving uniform powder distribution.

[0039] Step 4: Cross-linking and fixing: Place the pre-dried fabric into a baking atmosphere of 110-130℃ and keep it at that temperature for 4-8 minutes. During this process, the silane coupling agent, cross-linking agent, flexible polyurethane, cooling powder, and fiber macromolecules undergo a simultaneous cross-linking reaction, forming a flexible three-dimensional cross-linking network on the fiber surface. The cooling powder is firmly anchored in the network structure and forms a high-strength chemical bond with the fiber, effectively solving the problem of powder falling off during washing.

[0040] Step 5: Post-softening and setting: After fixing, the fabric undergoes tension-free softening and setting, followed by cooling and removal from the fabric to obtain a washable, cool-feeling fabric. Specifically, a tension-free, low-temperature softening and setting process is used, with a setting temperature of 90-105℃ and a setting speed of 18-25m / min, to further release the internal stress of the fabric and improve its fluffiness and softness; after cooling to room temperature, the fabric is removed from the fabric to obtain a finished product of highly washable, long-lasting, cool-feeling, and soft fabric.

[0041] Example 1

[0042] Step 1: Base fabric pretreatment: Select Tencel textile base fabric, use 2g / L nonionic degreasing agent and 1g / L chelating dispersant, immerse at 55℃ for 15min, rinse with water until neutral, dry at 80℃, moisture regain 2%.

[0043] Step 2: Padding Loading: The pretreated base fabric is immersed in the composite cooling finishing solution and padded at room temperature using a two-dip, two-padded method. The padded condition is 35 seconds at room temperature, with a padded pressure of 0.3 MPa and a padded rate of 75%. 38 parts of modified composite cooling powder, 17 parts of flexible waterborne polyurethane emulsion, 4 parts of γ-aminopropyltriethoxysilane, 2 parts of blocked polyisocyanate crosslinking agent, 1 part of polyether modified softener, 0.5 parts of nonionic penetrant, 0.3 parts of antiflocculation dispersant, and 37.2 parts of deionized water were sequentially added to a dispersion tank and dispersed at 3500 r / min for 25 min at 28℃. After homogenization, a composite cooling finishing liquid was obtained.

[0044] The mass ratio of the jade cooling powder, mica cooling powder, and menthol microcapsule cooling powder is 4:2.3:1.8, and the particle size is 300nm.

[0045] Step 3: Gradient pre-drying: Low-temperature step-by-step pre-drying is adopted, followed by drying at 65℃ for 4 min and drying at 85℃ for 2 min in sequence; Step 4: Cross-linking and fixation: Place the pre-dried fabric into a baking atmosphere at 110℃ and keep it at that temperature for 4 minutes to fix the composite cooling finishing liquid into the fabric. Step 5: Softening and shaping: After fixing, the fabric is subjected to tension-free soft shaping at a shaping temperature of 90℃ and a shaping speed of 18m / min. After cooling, the fabric is removed to obtain a washable and cool-feeling fabric.

[0046] Example 2

[0047] Step 1: Pretreatment of base fabric: Select combed pure cotton plain weave base fabric, use 3g / L nonionic degreasing agent and 2g / L chelating dispersant, soak at 60℃ for 20min, rinse with water until neutral, dry at 85℃, moisture regain 3%.

[0048] Step 2: Padding Loading: The pretreated base fabric is immersed in the composite cooling finishing solution and padded at room temperature using a two-dip, two-padded method. The padded condition is 45 seconds at room temperature, the padded pressure is 0.4 MPa, and the padded rate is 80%. 45 parts of modified composite cooling powder, 20 parts of flexible waterborne polyurethane emulsion, 5 parts of γ-aminopropyltriethoxysilane, 3 parts of blocked polyisocyanate crosslinking agent, 2 parts of polyether modified softener, 1 part of nonionic penetrant, 0.5 parts of antiflocculation dispersant, and 23.5 parts of deionized water were sequentially added to a dispersion tank and dispersed at 4000 r / min for 30 min at 30℃. After homogenization, a composite cooling finishing liquid was obtained.

[0049] The mass ratio of the jade cooling powder, mica cooling powder, and menthol microcapsule cooling powder is 5:2.5:1.5, and the particle size is 500nm.

[0050] Step 3: Gradient pre-drying: Low-temperature step-by-step pre-drying is adopted, followed by drying at 70℃ for 5 minutes and drying at 90℃ for 3 minutes in sequence; Step 4: Cross-linking and fixing: Place the pre-dried fabric into a baking atmosphere at 120℃ and keep it at that temperature for 6 minutes to fix the composite cooling finishing liquid into the fabric. Step 5: Softening and shaping: After fixing, the fabric is subjected to tension-free soft shaping at a shaping temperature of 100℃ and a shaping speed of 22m / min. After cooling, the fabric is removed to obtain a washable and cool-feeling fabric.

[0051] Example 3

[0052] Step 1: Pretreatment of base fabric: Modal / spandex elastic knitted base fabric is selected, and 4g / L nonionic degreasing agent and 2.5g / L chelating dispersant are used. The fabric is immersed at 62℃ for 18min, rinsed to neutral, and dried at 88℃ with a moisture regain of 2.5%.

[0053] Step 2: Padding Loading: Immerse the pretreated base fabric in the composite cooling finishing solution and pad it at room temperature, using a one-dip-one-pinch method, padding for 50 seconds, with a padding rate of 82%; 50 parts of modified composite cooling powder, 22 parts of flexible waterborne polyurethane emulsion, 6 parts of γ-glycidyl etheroxypropyltrimethoxysilane, 3.5 parts of aziridine crosslinking agent, 2.5 parts of polyether modified softener, 1.2 parts of nonionic penetrant, 0.6 parts of antiflocculation dispersant, and 14.2 parts of deionized water were sequentially added to a dispersion tank and dispersed at 4500 r / min for 35 min at 32℃. After homogenization, a composite cooling finishing liquid was obtained.

[0054] The mass ratio of the jade cooling powder, mica cooling powder, and menthol microcapsule cooling powder is 6:3:1, and the particle size is 400nm.

[0055] Step 3: Gradient pre-drying: Low-temperature step-by-step pre-drying is adopted, followed by drying at 72℃ for 4 min and drying at 92℃ for 2.5 min in sequence; Step 4: Cross-linking and fixation: Place the pre-dried fabric into a baking atmosphere at 125℃ and keep it warm for 5 minutes to fix the composite cooling finishing liquid in the fabric. Step 5: Softening and shaping: After fixing, the fabric is subjected to tension-free soft shaping at a shaping temperature of 98℃ and a shaping speed of 20m / min. After cooling, the fabric is removed to obtain a washable and cool-feeling fabric.

[0056] Comparative Example 1 Compared with Example 2, no silane coupling agent or crosslinking agent was added, and ordinary acrylic adhesive was used instead of flexible polyurethane, while the other raw materials and process parameters remained unchanged.

[0057] Comparative Example 2 Compared with Example 2, unmodified ordinary cooling powder was used, while the other raw materials and process parameters remained unchanged.

[0058] The fabrics prepared in Examples 1-3 and Comparative Examples 1-2 were tested for contact cooling coefficient, washability, fabric stiffness, and tensile strength, among which: Contact cooling coefficient Q-max: based on GB / T 35263-2017 "Test methods for cooling properties of textiles"; Wash resistance: According to AATCC 61-2020 "Rapid Wash Resistance Test for Textiles"; Fabric stiffness: According to GB / T 18318.1-2009 "Determination of bending properties of textiles"; Tensile strength: According to GB / T 3923.1-2013 "Textiles - Tensile Properties of Fabrics".

[0059] The results are shown in the table below: As can be seen from the data in the table above, the cooling fabric prepared by the method of the present invention has better washability and softness, and can be used in all scenarios such as high-end underwear, loungewear, bedding, sportswear, and summer clothing.

[0060] It should be understood that those skilled in the art can make improvements or modifications based on the above description, and all such improvements and modifications should fall within the protection scope of the appended claims.

Claims

1. A method for preparing a water-resistant, washable, and cool-feeling soft fabric, characterized in that: Includes the following steps: Step 1: Base fabric pretreatment: The textile base fabric is degreased, impurities removed, softened and pre-treated, and then dried to obtain a clean pre-treated base fabric; Step 2: Padding Loading: Immerse the pretreated base fabric in the composite cooling finishing solution and pad it at room temperature, controlling the padding rate to 70%-85%; Step 3: Gradient pre-drying: Use low-temperature step-by-step pre-drying, drying at 65-75℃ for 3-6 minutes and at 85-95℃ for 2-4 minutes in sequence to remove free moisture from the surface of the fabric. Step 4: Cross-linking and fixation: Place the pre-dried fabric into a baking atmosphere of 110-130℃ and keep it at that temperature for 4-8 minutes to fix the composite cooling finishing liquid into the fabric. Step 5: Softening and shaping: After fixing, the fabric is softened and shaped without tension, cooled and dropped to obtain a washable and cool-feeling fabric.

2. The method for preparing a water-resistant, cool-feeling, and soft fabric as described in claim 1, characterized in that: The textile base fabric is one of the following: pure cotton fabric, polyester-cotton blended fabric, modal fabric, Tencel fabric, and nylon-spandex elastic fabric.

3. The method for preparing a water-resistant, cool-feeling, and soft fabric as described in claim 1, characterized in that: In step 2, the composite cooling finishing liquid is prepared according to the following weight parts: The mixture consists of 30-55 parts of modified composite cooling powder, 12-25 parts of flexible waterborne polyurethane emulsion, 3-8 parts of silane coupling agent, 2-5 parts of hydroxyl crosslinking agent, 1-3 parts of polyether modified softener, 0.5-2 parts of nonionic penetrant, 0.2-1 parts of antiflocculation dispersant, and the balance being deionized water.

4. The method for preparing a water-resistant, cool-feeling, and soft fabric as described in claim 2, characterized in that: The preparation method of the composite cooling finishing liquid is as follows: Modified composite cooling powder, flexible waterborne polyurethane emulsion, silane coupling agent, hydroxyl crosslinking agent, polyether modified softener, nonionic penetrant, anti-flocculation dispersant, and deionized water are sequentially added to a dispersion tank and dispersed at 3000-5000 r / min for 25-40 min at 25-35℃. After homogenization, a composite cooling finishing liquid is obtained.

5. The method for preparing a water-resistant, cool-feeling, and soft fabric as described in claim 4, characterized in that: The modified composite cooling powder is obtained by combining jade cooling powder, mica cooling powder, and menthol microcapsule cooling powder, and then modifying it by double coating with aluminate-silane.

6. The method for preparing a water-resistant, cool-feeling, and soft fabric as described in claim 5, characterized in that: The mass ratio of the jade cooling powder, mica cooling powder, and menthol microcapsule cooling powder is (4-6):(2-3):(1-2).

7. The method for preparing a water-resistant, cool-feeling, and soft fabric as described in claim 6, characterized in that: The particle size of the modified composite cooling powder is 200-800 nm.

8. The method for preparing a water-resistant, cool-feeling, and soft fabric as described in claim 3, characterized in that: In step 2, the flexible waterborne polyurethane emulsion is a hydroxyl-terminated aliphatic waterborne polyurethane with a solid content of 30%-40%.

9. The method for preparing a water-resistant, cool-feeling, and soft fabric as described in claim 3, characterized in that: The silane coupling agent is one or both of γ-aminopropyltriethoxysilane and γ-glycidoxypropyltrimethoxysilane.

10. The method for preparing a water-resistant, cool-feeling, and soft fabric as described in claim 3, characterized in that: The hydroxyl crosslinking agent is one of aziridine crosslinking agents or polyisocyanate blocked crosslinking agents.

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