Polyester cotton single-absorption single-prevention fabric and preparation method thereof

Abstract

The invention discloses a polyester-cotton single-absorption single-prevention fabric and a preparation method thereof, and relates to the field of textile manufacturing, the preparation method comprises the following steps: S1, turning, singeing, boiling off, mercerizing and shaping a gray fabric to obtain a white gray fabric; s2, the grey cloth is dyed, dried and then baked, and dyed cloth is obtained; s3, carrying out reduction cleaning on the dyed cloth; preferably, soaping can be carried out firstly, and then reduction cleaning treatment is carried out; s4, gluing the front side of the cleaned dyed cloth to obtain a coated fabric; s5, tentering the coated fabric to obtain a fixed-width coated fabric; s6, performing moisture absorption and sweat releasing finishing on the fixed-width coated cloth to obtain moisture absorption and sweat releasing coated cloth; in the step S4, the cloth is subjected to stepped temperature drying through a drying oven. By optimizing the gluing process, the waterproof and oil-proof performance is improved, the wicking height is increased, the adhesive force of the coating is improved, and the overall performance of the fabric is improved.

Description

Technical Field

[0001] This invention relates to the field of textile manufacturing, specifically to a polyester-cotton single-absorbent and single-protective fabric and its preparation method. Background Technology

[0002] Polyester-cotton fabrics are widely used in the apparel and home textile industries due to their excellent abrasion resistance, crispness, and quick-drying properties. The demand for polyester-cotton fabrics is particularly increasing in sportswear and outdoor clothing. With rising living standards and the growing popularity of outdoor activities, consumers are placing higher demands on the comfort and functionality of fabrics. In addition to basic abrasion resistance and easy washing, fabrics also need to possess multi-functional properties such as moisture wicking and waterproofing to meet the needs of different usage scenarios.

[0003] In existing technologies, the coating process for polyester-cotton fabrics suffers from problems such as uneven coating and insufficient adhesion, leading to issues like coating peeling and functional failure during use. Furthermore, current coating technologies struggle to achieve a waterproof and oil-resistant rating of 5 on the front side of the fabric, and the long water diffusion time and insufficient wicking height on the back side negatively impact the fabric's moisture-wicking properties. These issues not only affect the fabric's lifespan but also limit the application of polyester-cotton fabrics in high-performance, multi-functional fields.

[0004] In view of the above, this application is hereby submitted. Summary of the Invention

[0005] The purpose of this invention is to provide a polyester-cotton single-absorbent and single-protective fabric and its preparation method. By optimizing the coating process, the invention solves the problem that the coating in the prior art is difficult to achieve high waterproof and oil-proof properties on the front side of the fabric and insufficient wicking height on the back side.

[0006] Firstly, this invention provides a method for preparing a polyester-cotton single-absorbent and single-protective fabric, comprising the following steps: S1: The greige fabric is turned, singed, boiled, mercerized and set to obtain white greige fabric; S2: The raw white fabric is dyed, dried, and then baked to obtain dyed fabric; S3: Perform a reduction cleaning on the dyed fabric; preferably, soap washing can be performed first, followed by a reduction cleaning process. S4: Apply adhesive to the front side of the washed and dyed fabric to obtain a coated fabric; S5: Stretching the coated fabric to obtain a fixed-width coated fabric; S6: The fixed-width coated fabric is subjected to moisture-wicking finishing to obtain a moisture-wicking coated fabric; The adhesive application described in S4 includes drying the fabric in a stepped temperature oven.

[0007] In this embodiment of the invention, the front coating process employs a stepped temperature drying method, ensuring the adhesive is evenly distributed and firmly adhered to the fabric surface. This effectively improves the uniformity and adhesion of the coating, achieving high waterproof and oil-resistant properties on the front of the fabric while preventing issues such as coating peeling and functional failure. The subsequent stretching process sets the width of the coated fabric, ensuring dimensional stability. The final moisture-wicking finishing further enhances the fabric's moisture-wicking performance, achieving an ideal wicking height on the back, meeting consumers' high demands for fabric comfort and functionality, and expanding the application range of polyester-cotton fabrics in high-performance, multi-functional fields.

[0008] As an optional implementation, the singeing in S1 includes a two-stage singeing process, with a speed of 80-100 m / min and a singeing flame temperature of 800-900°C. The boiling process involves five soakings, one rolling, and then steaming. The steam temperature was 80±2℃, and the time was 30±2min.

[0009] Specifically, this singeing process effectively removes lint and impurities from the surface of the greige fabric, resulting in a smoother and more even surface. This reduces fuzziness during subsequent processing, improving the fabric's appearance and abrasion resistance. Simultaneously, the scouring process involves five immersions and one padding, followed by steaming at 70-90℃ for 25-35 minutes. This scouring process thoroughly removes natural impurities and oils from the greige fabric, making the fibers purer, enhancing their hydrophilicity and dyeability, and providing better conditions for subsequent dyeing and finishing processes, further improving the quality and performance of the polyester-cotton fabric.

[0010] As an optional implementation, in the five-immersion and one-rolling process, the additives in the immersion and rolling solution include low-temperature scouring agent MJ-206, refining agent JG-130, caustic soda and hydrogen peroxide. The concentration of the low-temperature smelting agent MJ-206 is 4~6 g / L, the concentration of the refining agent JG-130 is 2.5~3.5 g / L, the concentration of caustic soda is 18~20 g / L, the concentration of hydrogen peroxide is 15~16 g / L, and the liquid carry-over rate of the immersion liquid is 80~90%.

[0011] Specifically, during the scouring process, a specific padding liquor formula is used. Through optimization of the formula and process parameters, the padding liquor can effectively remove natural impurities and oils from the greige fabric at a lower temperature. The low-temperature scouring agent MJ-206 and the refining agent JG-130 work synergistically to improve scouring efficiency and reduce fiber damage. Caustic soda and hydrogen peroxide further enhance the detergency and bleaching effects, making the fibers purer and whiter. By precisely controlling the concentration of each auxiliary agent and the liquor carryover rate, the uniformity and stability of the scouring effect are ensured, providing high-quality greige fabric for subsequent processing and improving the overall quality and performance of the polyester-cotton fabric.

[0012] As an optional implementation, the mercerizing parameters in S1 include: caustic soda concentration of 210~230g / L, machine speed of 85~95m / min, and alkali steaming chamber temperature of room temperature; The parameters for the shaping include: machine speed of 85~95m / min, temperature of 210~215℃, expansion width of 150~160cm, fabric width of 150~160cm, and overfeed speed difference of -2.5~-1.5m / min.

[0013] Specifically, this mercerizing treatment method enables sufficient expansion and setting of fibers at lower temperatures, resulting in a smoother fiber surface, improved fabric luster and dimensional stability, while reducing fiber damage caused by high-temperature treatment. The setting process ensures uniform fabric setting at high temperatures by controlling the machine speed to 85-95 m / min, the temperature to 210-215℃, the fabric width to 150-160 cm, the fabric drop width to 150-160 cm, and the overfeed speed difference to -2.5 to -1.5 m / min. In this embodiment of the invention, precise parameter control effectively reduces fabric shrinkage during subsequent processing and use, ensuring dimensional stability and appearance quality, further enhancing the quality and functionality of the polyester-cotton fabric.

[0014] As an optional implementation, the dyeing in S2 includes preparing a dye liquor using disperse dye, vat dye, anti-migration agent and defoamer, and sequentially padding the shaped white fabric with the dye liquor and pre-drying it. The liquid retention rate after padding with the dye liquor is 48±1%, and the pre-drying temperature is 120~160℃. The concentration of the anti-migratory agent in the dye solution is 8–12 g / L, and the concentration of the defoamer is 0.8–1.2 g / L. The baking temperature described in S2 is 200-220℃, and the vehicle speed is 60-70m / min; The reduction cleaning described in S3 includes spraying cold water to cool the fabric surface to room temperature, followed by a one-dip and one-roll reduction solution treatment; finally, the fabric is passed through a reduction steaming chamber at a temperature of 101-103°C and a speed of 60-70 m / min.

[0015] Specifically, the embodiments of the present invention, through optimization of dye liquor formulation and process parameters, can effectively prevent dye migration on fabrics, ensuring uniform dyeing and vibrant color. Simultaneously, by controlling the liquor carryover rate and pre-drying temperature, dyeing efficiency and quality are further improved. Parameter optimization in the baking stage ensures sufficient dye fixation, enhancing the colorfastness of the fabric. Parameter optimization in the reduction washing process effectively removes floating dye and residual chemicals from the fabric surface, further improving the colorfastness and hand feel of the fabric, ensuring the quality and performance of the fabric in subsequent processing and use.

[0016] For example, the disperse dyes and their addition amounts are: Disperse Blue 2BLN: 0.52 g / L, Disperse Orange S-4RL: 0.48 g / L, Disperse Red H-BGL: 0.15 g / L; the vat dyes and their addition amounts are: Vat Olive T: 1.8 g / L, Vat Brown BR: 0.32 g / L, Vat Yellow 3RT: 0.06 g / L, the addition amount of anti-migrating agent AM-103 is 10 g / L, and the addition amount of defoamer DM-8302 is 1 g / L.

[0017] As an optional implementation, the coating in S4 includes mixing C6 waterproof and oil-repellent agent 6080GX-01 with reinforcing agent DJ-3913, and then using thickener DM-5288 to adjust the viscosity of the mixture to 80-130 dPa•s.

[0018] Specifically, the optimized formulation and process enhance the waterproof and oil-repellent properties and adhesion of the coating. C6 waterproof and oil-repellent agent 6080GX-01 itself possesses excellent waterproof and oil-repellent effects, while the addition of reinforcing agent DJ-3913 further improves the mechanical strength and durability of the coating, enabling it to form a uniform and robust protective layer on the fabric surface. The viscosity is adjusted using thickener DM-5288, ensuring the uniformity and stability of the coating process and preventing the coating from being too thick or too thin. This achieves high waterproof and oil-repellent performance on the fabric's front side while maintaining the fabric's breathability and comfort. This coating process not only solves the problems of insufficient coating uniformity and adhesion in existing technologies but also improves the overall performance of the fabric, meeting the needs of high-performance, multi-functional polyester-cotton fabrics.

[0019] For example, the formulation of the coating adhesive is: C6 three-proof agent 6080GX-01: 20g / L, reinforcing agent HF-30B: 10g / L, thickener DM-5288: 1%, deionized water: 69%.

[0020] As an optional implementation, the stepped temperature setting includes three levels of gradients: 160–180°C, 170–190°C, and 180–200°C.

[0021] The principle behind this stepped temperature setting is to gradually increase the temperature, allowing the adhesive to cure progressively at different temperature stages, thereby ensuring the uniformity and adhesion of the coating. At lower temperatures (168–172°C), the coating begins to cure initially, forming a preliminary protective layer. As the temperature rises to 178–182°C, the coating further cures, enhancing its mechanical properties. Finally, at the high temperature stage of 188–192°C, the coating is fully cured, forming a uniform and robust waterproof and oil-repellent layer. This gradual temperature increase process effectively prevents cracking or peeling of the coating caused by rapid temperature changes, while ensuring a uniform distribution of the coating on the fabric surface, thus improving the fabric's waterproof, oil-repellent properties and durability.

[0022] As an optional implementation, the parameters of the doctor blade used for applying the adhesive include: doctor blade size 1.5-2.5mm, blade distance between the doctor blade and the idler roller 5-7mm, doctor blade downward pressure distance 5-7mm, fabric feeding tension pressure 25-30KPa, and machine speed 28-35m / min.

[0023] Optimizing these parameters ensures the precision and uniformity of the coating process. Precise control of the squeegee specifications and blade spacing results in a uniform coating thickness, preventing it from being too thick or too thin. Optimal squeegee tip pressure further guarantees the smoothness of the coating. Precise control of fabric tension and pressure prevents wrinkles or stretching deformation during coating, ensuring uniform adhesion. Optimal machine speed ensures the continuity and stability of the coating process, improving production efficiency. Through comprehensive optimization of these parameters, not only is the uniformity and adhesion of the coating improved, but the waterproof and oil-resistant properties and overall quality of the fabric are also enhanced.

[0024] As an optional implementation, the resin machine used for stretching in S5 is set to a temperature of 170-190°C and a speed of 55-65 m / min; The moisture-wicking finishing described in S6 uses a padding moisture-wicking agent DH, with a dosage of 45-55 g / L.

[0025] Optimized setup of the tenter frame effectively controls the fabric width and dimensional stability, ensuring the coated fabric maintains good flatness and consistency during subsequent processing and use. By precisely controlling temperature and speed, the resin press can uniformly perform width setting on the fabric, reducing shrinkage and deformation, and improving the overall quality of the fabric.

[0026] Optimized moisture-wicking finishing processes enhance the fabric's moisture-wicking properties. The moisture-wicking agent (DH) forms a unique microstructure on the fabric surface, promoting rapid absorption and diffusion of moisture. This allows the fabric to quickly transfer and evaporate sweat, maintaining comfort and a dry feel. Precise control of the DH dosage ensures uniformity and stability of the finishing effect, further improving the functionality and comfort of the polyester-cotton fabric.

[0027] Secondly, this embodiment of the invention also provides a polyester-cotton single-absorbent and single-protective fabric, which is prepared by the above-described preparation method.

[0028] Compared with the prior art, the embodiments of the present invention have the following advantages and beneficial effects: 1. This invention effectively solves the problems of insufficient uniformity and adhesion in existing polyester-cotton fabric coatings by optimizing the coating process. In the preparation process, the greige fabric is first subjected to turning, singeing, scouring, mercerizing, and setting treatments to obtain a white greige fabric, providing a good foundation for subsequent processing. Next, the white greige fabric is dyed, dried, and baked to obtain the desired color. A reduction cleaning step removes impurities and chemicals remaining from the dyeing process, ensuring a clean fabric surface. In the crucial front-side coating stage, a stepped temperature drying process is used to ensure the adhesive is evenly distributed and firmly adhered to the fabric surface, effectively improving the uniformity and adhesion of the coating. This achieves high waterproof and oil-resistant properties on the front side of the fabric, while avoiding problems such as coating peeling and functional failure. The subsequent stretching process fixes the width of the coated fabric, ensuring dimensional stability. The final moisture-wicking finishing process further enhances the fabric's moisture-wicking performance, achieving an ideal wicking height. This not only ensures that the waterproof adhesive does not penetrate to the back of the fabric during coating, but also keeps the front of the fabric smooth and non-sticky. The front is waterproof to level 5 and oil-resistant to level 5. Water droplets on the back spread within 2 seconds, and the warp and weft wicking height exceeds 9cm.

[0029] 2. In the adhesive coating process of this invention, specific doctor blade parameters are employed: doctor blade size 1.5–2.5 mm, doctor blade-to-roller distance 5–7 mm, doctor blade tip downward pressure distance 5–7 mm, fabric feeding tension pressure 25–30 kPa, and machine speed 28–35 m / min. This ensures the precision and uniformity of the adhesive coating process. Precise control of the doctor blade size and distance ensures a uniform coating thickness, avoiding excessively thick or thin coatings. The appropriate doctor blade tip downward pressure distance further guarantees the smoothness of the coating. Precise control of the fabric feeding tension pressure prevents wrinkles or stretching deformation of the fabric during adhesive coating, ensuring uniform coating adhesion. The appropriate machine speed ensures the continuity and stability of the adhesive coating process, improving production efficiency. Through the comprehensive optimization of these parameters, not only is the uniformity and adhesion of the coating improved, but the waterproof and oil-resistant properties and overall quality of the fabric are also enhanced.

[0030] 3. In this embodiment of the invention, the C6 waterproof and oil-repellent agent 6080GX-01 itself has excellent waterproof and oil-repellent effects, while the addition of the reinforcing agent DJ-3913 further improves the mechanical strength and durability of the coating, enabling it to form a uniform and firm protective layer on the fabric surface. The viscosity is adjusted by the thickener DM-5288 to ensure the uniformity and stability of the coating process, avoiding an excessively thick or thin coating. This achieves high waterproof and oil-repellent performance on the fabric's front side while maintaining the fabric's breathability and comfort. This not only solves the problems of insufficient coating uniformity and adhesion in existing technologies but also improves the overall performance of the fabric, meeting the needs of high-performance, multi-functional polyester-cotton fabrics.

[0031] 4. The fabric prepared by this invention is very suitable for "dynamic" usage scenarios, that is, when the human body is exercising and sweating, but the external environment may be rainy or windy. It is commonly used in the inner or middle layer of outdoor sportswear, windproof jackets, high-end casual jackets, protective workwear, etc.

[0032] In general, the embodiments of the present invention provide a polyester-cotton single absorbent and single waterproof fabric and its preparation method. By optimizing the coating process, the aim is to improve the waterproof and oil-repellent properties, enhance the wicking height, improve the coating adhesion, and improve the overall performance of the fabric. Detailed Implementation

[0034] Therefore, the detailed description of the embodiments of the present invention provided below is not intended to limit the scope of the claimed invention, but merely to illustrate selected embodiments of the invention. All other embodiments obtained by those skilled in the art based on the embodiments of the present invention without inventive effort are within the scope of protection of the present invention.

[0036] In the description of this invention, it should be noted that the terms "first," "second," "third," etc., are used only for distinguishing descriptions and should not be construed as indicating or implying relative importance.

[0037] It should be noted that the following explanations are provided regarding the above-mentioned adjuvants: 1. Moisture-wicking agent DH, manufacturer: Angco Chemical (China) Co., Ltd., product number: CNAA093142; 2. Anti-migratory agent ST200A, manufacturer: Sichuan Yixin Technology Co., Ltd., product number: 25092215; 3. Defoamer 8302, Manufacturer: Chengdu Shuangjiacheng Technology Co., Ltd., Product No.: 20250412; 4. C6 Waterproof and Oil Repellent Agent 6080GX-01, Manufacturer: Zhuhai Huada Haohong New Materials Co., Ltd., Item No.: B2216061018y2501; 5. Enhancer DJ-3913, Manufacturer: Guangdong Demei Fine Chemical Group Co., Ltd., Product No.: 20250626; 6. MJ-206, Manufacturer: Mianyang Jialide Textile Technology Co., Ltd., Item No.: 2510030; 7. JG-130, Manufacturer: Wuxi Lianda Chemical Co., Ltd., Item No.: 20251016; 8. Disperse Blue 2BLN, Manufacturer: Fuyingmei (Shaoxing) Dyestuff Co., Ltd., Product No.: 25031001; 9. Disperse Orange S-4RL, Manufacturer: Zhejiang Longsheng Group Co., Ltd., Item No.: N-DDK70S91; 10. Disperse Red H-BGL, Manufacturer: Yorkshire (Zhejiang) Dyeing & Chemical Co., Ltd., Product No.: 20250442; 11. Vapor Olive T, Manufacturer: Jiangsu Yabang Dyestuff Co., Ltd., Product No.: 20259102A; 12. Vat Brown (BR), Manufacturer: Jiangsu Yabang Dyestuff Co., Ltd., Product No.: 20252119X; 13. Vat Yellow 3RT, Manufacturer: Jiangsu Yabang Dyestuff Co., Ltd., Product No.: 20255125A. Example

[0038] This invention provides a method for preparing a polyester-cotton single-absorbent and single-protective fabric, comprising the following steps: S1: The greige fabric is turned, singed, boiled, mercerized and set to obtain white greige fabric; The singeing process includes two singeing methods, one forward and one reverse, with a machine speed of 80~100m / min and a singeing flame temperature of 800~900℃; The boiling process involves five soakings, one rolling, and then steaming. The steam temperature was 80±2℃, and the time was 30±2min.

[0039] In the process of five impregnations and one rolling, the additives in the impregnation and rolling solution include low-temperature scouring agent MJ-206, refining agent JG-130, caustic soda and hydrogen peroxide; The concentration of the low-temperature smelting agent MJ-206 is 4~6 g / L, the concentration of the refining agent JG-130 is 2.5~3.5 g / L, the concentration of caustic soda is 18~20 g / L, the concentration of hydrogen peroxide is 15~16 g / L, and the liquid carry-over rate of the immersion liquid is 80~90%.

[0040] The parameters for mercerizing include: caustic soda concentration of 210~230g / L, machine speed of 85~95m / min, and alkali steaming chamber temperature of room temperature; The parameters for the shaping include: machine speed of 85~95m / min, temperature of 210~215℃, expansion width of 150~160cm, fabric width of 150~160cm, and overfeed speed difference of -2.5~-1.5m / min.

[0041] S2: The raw white fabric is dyed, dried, and then baked to obtain dyed fabric; The dyeing process involves preparing a dye liquor using disperse dyes, vat dyes, anti-migration agents, and defoamers, and then sequentially padding and pre-drying the shaped white fabric with the dye liquor. The liquid retention rate after padding is 48±1%, and the pre-drying temperature is 120~160℃. The concentration of the anti-migratory agent in the dye solution is 8–12 g / L, and the concentration of the defoamer is 0.8–1.2 g / L. The baking temperature is 200-220℃, and the vehicle speed is 60-70m / min.

[0042] S3: Perform a reduction cleaning on the dyed fabric; The reduction cleaning process includes spraying the fabric with cold water to cool it to room temperature, followed by a dip-and-roll treatment with a reduction solution; finally, the fabric is passed through a reduction steaming chamber at a temperature of 101-103°C and a speed of 60-70 m / min.

[0043] S4: Apply adhesive to the front side of the washed and dyed fabric to obtain a coated fabric; The coating process involves mixing C6 waterproof and oil-repellent agent 6080GX-01 with reinforcing agent DJ-3913, then adding deionized water to the specified amount, and finally using thickener DM-5288 to adjust the viscosity of the mixture to 80-130 dPa•s. The coating process includes drying the fabric in a stepped temperature oven, wherein the stepped temperature setting includes three levels of gradient: 160-180℃, 170-190℃ and 180-200℃. The parameters of the scraper used for applying the adhesive include: scraper size 1.5-2.5mm, scraper distance between the scraper and the roller 5-7mm, scraper mouth downward pressure distance 5-7mm, fabric feeding tension pressure 25-30KPa, and machine speed 28-35m / min.

[0044] S5: Stretching the coated fabric to obtain a fixed-width coated fabric; The resin machine used for the stretching process is set to a temperature of 170–190°C and a speed of 55–65 m / min. S6: The fixed-width coated fabric is subjected to moisture-wicking finishing to obtain a moisture-wicking coated fabric. The moisture-wicking finishing process uses a padding moisture-wicking agent DH, with a dosage of 45-55 g / L.

[0045] Example 1: This embodiment of the invention provides a method for preparing a polyester-cotton single-absorbent and single-protective fabric, comprising the following steps: S1: The greige fabric is turned, singed, boiled, mercerized and set to obtain white greige fabric; The singeing process includes two singeing methods, one forward and one reverse, with a machine speed of 90m / min and a singeing flame temperature of 850℃. The boiling process involves five soakings, one rolling, and then steaming. The steam temperature was 80±2℃, and the time was 30±2min.

[0046] In the process of five impregnations and one rolling, the additives in the impregnation and rolling solution include low-temperature scouring agent MJ-206, refining agent JG-130, caustic soda and hydrogen peroxide; The concentration of the low-temperature smelting agent MJ-206 is 5 g / L, the concentration of the refining agent JG-130 is 3 g / L, the concentration of caustic soda is 19 g / L, the concentration of hydrogen peroxide is 15.5 g / L, and the liquid carryover rate of the immersion liquid is 85%.

[0047] The parameters for mercerizing include: caustic soda concentration of 220 g / L, machine speed of 90 m / min, and alkali steaming chamber temperature of room temperature; The parameters for the finalization include: a machine speed of 90 m / min, a temperature of 212℃, an expansion width of 155 cm, a fabric drop width of 155 cm, and an overfeed speed difference of -2 m / min.

[0048] S2: The raw white fabric is dyed, dried, and then baked to obtain dyed fabric; The dyeing process involves preparing a dye liquor using disperse dyes, vat dyes, anti-migration agent AM-103, and defoamer DM-8302. The shaped white fabric is then sequentially impregnated with the dye liquor and pre-dried. The liquid retention rate after impregnation is 48%, and the pre-drying temperature is 140°C. The concentration of anti-migration agent AM-103 in the dye solution is 10 g / L, and the concentration of defoamer DM-8302 is 1 g / L; The baking temperature was 210℃, and the vehicle speed was 65m / min; The disperse dyes and their addition amounts are as follows: Disperse Blue 2BLN: 0.52 g / L, Disperse Orange S-4RL: 0.48 g / L, and Disperse Red H-BGL: 0.15 g / L; The vat dyes and their addition amounts are as follows: Vat Olive T: 1.8 g / L, Vat Brown BR: 0.32 g / L, Vat Yellow 3RT: 0.06 g / L.

[0049] S3: Perform a reduction cleaning on the dyed fabric; The reduction cleaning process includes spraying the fabric with cold water to cool it to room temperature, followed by a dip-and-roll reduction solution treatment; finally, the fabric is passed through a reduction steaming chamber at a temperature of 102°C and a speed of 65 m / min.

[0050] S4: Apply adhesive to the front side of the washed and dyed fabric to obtain a coated fabric; The coating process involves mixing C6 waterproof and oil-repellent agent 6080GX-01 with reinforcing agent DJ-3913, then adding deionized water to the specified amount, and finally using thickener DM-5288 to adjust the viscosity of the mixture to 120 dPa•s. The coating adhesive formula is as follows: C6 three-proof agent 6080GX-01: 20g / L, reinforcing agent HF-30B: 10g / L, thickener DM-5288: 1%, deionized water: 69%; The coating process includes drying the fabric in an oven at a stepped temperature, wherein the stepped temperature setting includes three levels of gradient, namely 170℃, 180℃ and 190℃. The parameters of the scraper used for applying the adhesive include: scraper size 2mm, scraper distance between the scraper and the roller 6mm, scraper opening downward pressure distance 6mm, fabric feeding tension pressure 28KPa, and machine speed 30m / min.

[0051] S5: Stretching the coated fabric to obtain a fixed-width coated fabric; The resin machine used for the stretching process is set to a temperature of 180℃ and a speed of 60m / min. S6: The fixed-width coated fabric is subjected to moisture-wicking finishing to obtain a moisture-wicking coated fabric. The moisture-wicking finishing process uses a padding moisture-wicking agent DH at a dosage of 50g / L.

[0052] Example 4: This embodiment of the invention provides a method for preparing a polyester-cotton single-absorbent and single-protective fabric. The difference from Example 1 is that the viscosity of the waterproof adhesive is adjusted, while the other steps remain the same. The adhesive formula is as follows: C6 three-proof agent 6080GX-01: 20g / L, reinforcing agent HF-30B: 10g / L, thickener DM-5288: 0.6%, deionized water: 69.4%, and the adhesive viscosity is 80dPa•s.

[0053] Example 5: This embodiment of the invention provides a method for preparing a polyester-cotton single-absorbent and single-protective fabric. The difference from Example 1 is that the viscosity of the waterproof adhesive is adjusted, while the other steps remain the same. The adhesive formula is as follows: C6 three-proof agent 6080GX-01: 20g / L, reinforcing agent HF-30B: 10g / L, thickener DM-5288: 1.4%, deionized water: 68.6%, and the adhesive viscosity is 130dPa•s.

[0054] Example 6: This embodiment of the invention provides a method for preparing a polyester-cotton single-absorbent and single-protective fabric. The difference from Example 1 is that the stepped temperature setting includes three levels of gradient, namely 180℃, 190℃ and 200℃, while the other steps remain the same.

[0055] Example 7: This embodiment of the invention provides a method for preparing a polyester-cotton single absorbent and single protective fabric. The difference from Example 1 is that the stepped temperature setting includes three levels of gradient, namely 160℃, 170℃ and 180℃, while the other steps remain the same.

[0056] Example 8: This embodiment of the invention provides a method for preparing a polyester-cotton single absorbent and single protective fabric. The difference from Example 1 is that the speed of the scraper used for coating is 45m / min, while the other steps remain unchanged.

[0057] Example 9: This embodiment of the invention provides a method for preparing a polyester-cotton single absorbent and single protective fabric. The difference from Example 1 is that the speed of the scraper used for coating is 25m / min, while the other steps remain unchanged.

[0058] Example 10: This embodiment of the invention provides a method for preparing a polyester-cotton single-absorbent and single-protective fabric. The difference from Example 1 is that the waterproof adhesive formulation is changed, the viscosity remains unchanged, and the other steps are the same. The waterproof adhesive formulation is: C6 waterproof and oil-repellent agent CTA-566: 20g / L, reinforcing agent HF-30B: 10g / L, thickener DM-5288: 1%, deionized water: 69%, and the adhesive viscosity is 120dPa•s.

[0059] Example 11: This embodiment of the invention provides a method for preparing a polyester-cotton single-absorbent and single-protective fabric. The difference from Example 1 is that the stepped temperature setting includes three levels of gradient, namely 155℃, 165℃ and 175℃, while the other steps remain the same.

[0060] Example 12: This embodiment of the invention provides a method for preparing a polyester-cotton single-absorbent and single-protective fabric. The difference from Example 1 is that the stepped temperature setting includes three levels of gradient, namely 185℃, 195℃ and 205℃, while the other steps remain the same.

[0061] Example 13: This embodiment of the invention provides a method for preparing a polyester-cotton single absorbent and single protective fabric. The difference from Example 1 is that the coating speed used in the adhesive application is 35m / min, while the other steps remain unchanged.

[0062] Example 14: This embodiment of the invention provides a method for preparing a polyester-cotton single absorbent and single protective fabric. The difference from Example 1 is that the speed of the scraper used for coating is 28m / min, while the other steps remain unchanged.

[0063] Example 15: This embodiment of the invention provides a method for preparing a polyester-cotton single-absorbent and single-protective fabric. The difference from Example 1 is that the viscosity of the waterproof adhesive is adjusted, while the other steps remain the same. The adhesive formula is as follows: C6 three-proof agent 6080GX-01: 20g / L, reinforcing agent HF-30B: 10g / L, thickener DM-5288: 1.5%, deionized water: 68.5%, and the adhesive viscosity is 150dPa•s.

[0064] Example 16: This embodiment of the invention provides a method for preparing a polyester-cotton single-absorbent and single-protective fabric. The difference from Example 1 is that the viscosity of the waterproof adhesive is adjusted, while the other steps remain the same. The adhesive formula is as follows: C6 three-proof agent 6080GX-01: 20g / L, reinforcing agent HF-30B: 10g / L, thickener DM-5288: 0.5%, deionized water: 69.5%, and the adhesive viscosity is 70dPa•s.

[0065] Comparative Example 1: A method for preparing polyester-cotton fabric is provided. The difference from Example 1 is that the adhesive coating does not involve drying the fabric in a stepped temperature oven, but directly sets the temperature to 190°C. The remaining steps remain the same.

[0066] The fabrics prepared in Examples 1-16 and Comparative Example 1 were subjected to performance tests. The test results are shown in Tables 1, 2, and 3 below: Table 1

[0067] Table 2

[0068] Table 3

[0069] As can be seen from Tables 1-3, the embodiments of the present invention optimize the coating process, including the stepped baking temperature, the selection of the scraper and the distance between the scrapers, the final confirmation of the machine speed, and the selection of C6 waterproof and oil-repellent agent. This not only avoids glue penetration, but also ensures that the front of the fabric is waterproof and oil-repellent to level 5, the back water droplet spread is less than 2 seconds, the warp and weft wicking height exceeds 9cm, and the coating surface is dry and not rough, resulting in better comfort.

[0070] Specifically, as can be seen from the comparison between Example 1 and Comparative Example 1, when the adhesive is applied without using a stepped temperature drying process in an oven, but instead using a single temperature, the surface of the adhesive on the fabric dries quickly, while the adhesive inside the fabric remains slightly moist. This results in a situation where the outside is dry and the inside is moist, and the drying process is incomplete. After the fabric has completely cooled down after the coating, the waterproof and oil-proof effect and color fastness will decrease.

[0071] As can be seen from the comparison between Example 1 and Example 4, the viscosity of the waterproof adhesive is too low, and the adhesive will quickly penetrate from the surface of the fabric to the reverse side, thus affecting the moisture absorption and perspiration function.

[0072] As can be seen from the comparison between Example 1 and Example 5, when the viscosity of the waterproof adhesive is too high, the difficulty of filtering the adhesive increases, and the adhesive particles that cannot be evenly dispersed in the adhesive will adhere to the fabric and form white spots directly on the fabric surface after drying.

[0073] As can be seen from the comparison between Example 1 and Example 6, after the overall temperature is increased in a stepped manner, there will be over-baking, which will affect the color fastness, dry friction decreases, and wet friction decreases.

[0074] As can be seen from the comparison between Example 1 and Example 7, after the overall temperature is reduced in a stepwise manner, the baking will be insufficient, resulting in the waterproofing agent on the fabric surface not being fully cross-linked, thus affecting the waterproof and oil-proof effect of color fastness.

[0075] A comparison of Examples 1 and 8 shows that when the vehicle speed is too high during the coating process, the amount of waterproof adhesive applied decreases, which directly results in a decrease in the amount of waterproofing agent used on the fabric surface, a decrease in the overall weight of the fabric, and a decrease in the waterproof and oil-proof effect.

[0076] As can be seen from the comparison between Example 1 and Example 9, when the speed of the machine is low during the coating process, the amount of waterproof adhesive applied increases, which directly results in an increase in the amount of waterproofing agent used on the fabric surface and a longer time for the waterproof adhesive to penetrate the fabric, affecting the overall weight and moisture absorption and wicking effect.

[0077] A comparison of Example 1 and Example 10 shows that when the coating adhesive formula is: C6 three-proof agent CTA-566: 20g / L, reinforcing agent HF-30B: 10g / L, thickener DM-5288: 1%, and deionized water: 69%, the waterproof and oil-proof properties decrease.

[0078] A comparison of Example 1 with Examples 11 and 12 shows that when the three temperature gradients of the stepped temperature setting are in the ranges of 160-180℃, 170-190℃, and 180-200℃ respectively, the effect is better. If the temperature is too low, the cross-linking of the waterproofing agent is insufficient, and the waterproof and oil-proof effect is significantly reduced; if the temperature is too high, the baking is excessive, and the color fastness is seriously reduced.

[0079] A comparison of Examples 1, 15, and 16 shows that when the viscosity of the coating adhesive is adjusted to the range of 80–130 dPa•s using a thickener, the effect is better. When the viscosity is too low, the waterproofing agent will quickly penetrate to the back of the fabric, thus seriously affecting the moisture absorption and wicking effect. When the viscosity is too high, the waterproofing adhesive cannot be filtered, resulting in the adhesive particles acting directly on the fabric surface, forming serious white spots.

Claims

1. A preparation method of a polyester-cotton single-side absorbing and single-side protective fabric, characterized in that, The method comprises the following steps: S1: the grey cloth is subjected to turning, singeing, scouring, mercerizing and setting to obtain white grey cloth; S2: the white grey cloth is subjected to dyeing and then drying, and then baking to obtain dyed cloth; S3: the dyed cloth is subjected to reduction cleaning; S4: the cleaned dyed cloth is subjected to front gluing to obtain coated fabric; S5: the coated fabric is subjected to tentering to obtain fixed-width coated fabric; S6: the fixed-width coated fabric is subjected to moisture absorption and sweat releasing finishing to obtain moisture absorption and sweat releasing coated fabric; The gluing in S4 comprises stepwise temperature drying of the fabric through an oven.

2. The preparation method of the polyester cotton single suction single protection fabric according to claim 1, characterized in that, The singeing in S1 comprises positive and reverse singeing, the speed is 80-100 m / min, and the singeing flame temperature is 800-900 DEG C; The scouring comprises five times of impregnation and one time of pressing, and then steaming; The steaming temperature is 80±2 DEG C, and the time is 30±2 min.

3. The preparation method of the polyester cotton single suction and single protection fabric according to claim 2, characterized in that, In the five times of impregnation and one time of pressing, the additives of the impregnation liquor comprise low-temperature scouring agent MJ-206, refining agent JG-130, caustic soda and hydrogen peroxide; The concentration of the low-temperature scouring agent MJ-206 is 4-6 g / L, the concentration of the refining agent JG-130 is 2.5-3.5 g / L, the concentration of the caustic soda is 18-20 g / L, the concentration of the hydrogen peroxide is 15-16 g / L, and the liquid rate of the impregnation liquor is 80-90%.

4. The preparation method of the polyester cotton single suction and single protection fabric according to claim 3, characterized in that, The parameters of the mercerizing in S1 comprise: the caustic soda concentration is 210-230 g / L, the speed is 85-95 m / min, and the alkali steaming box temperature is room temperature; The parameters of the setting comprise: the speed is 85-95 m / min, the temperature is 210-215 DEG C, the width of the expansion is 150-160 cm, the width of the fabric after falling is 150-160 cm, and the speed difference of the overfeed is -2.5--1.5 m / min.

5. The method for preparing a polyester-cotton single-absorbent and single-protective fabric according to claim 1, characterized in that, The dyeing in S2 comprises preparing dye liquor by using disperse dye, vat dye, anti-swing agent and defoaming agent, and then impregnating and pre-drying the white grey cloth after setting; The concentration of the anti-swing agent in the dye liquor is 8-12 g / L, and the concentration of the defoaming agent is 0.8-1.2 g / L; The baking temperature in S2 is 200-220 DEG C, and the speed is 60-70 m / min; The reduction cleaning in S3 comprises spraying the fabric with cold water to room temperature, and then treating the fabric with one impregnation and one pressing of reduction liquor; finally, the fabric is passed through a reduction steaming box at a temperature of 101-103 DEG C and a speed of 60-70 m / min.

6. The method for preparing a polyester-cotton single-absorbent and single-protective fabric according to claim 1, characterized in that, The gluing in S4 comprises mixing C6 waterproof and oil-proof agent 6080GX-01 with reinforcing agent DJ-3913, then adding deionized water to a specified amount, and finally adjusting the viscosity of the mixture to 80-130 dPa·s by using thickening agent DM-5288.

7. The method for preparing a polyester-cotton single-absorbent and single-protective fabric according to claim 6, characterized in that, The stepwise temperature setting comprises three levels of gradients, which are 160-180 DEG C, 170-190 DEG C and 180-200 DEG C respectively.

8. The preparation method of the polyester cotton single suction and single protection fabric according to claim 7, characterized in that, The glue coating uses the scraper parameters including scraper specification 1.5-2.5mm, scraper and the knife distance of the supporting roller 5-7mm, scraper mouth down pressure distance 5-7mm, cloth tension pressure 25-30KPa and the speed 28-35m / min.

9. The method for preparing a polyester-cotton single-absorbent and single-protective fabric according to claim 1, characterized in that, The resin machine setting temperature of the tentering in S5 is 170-190℃, and the speed is 55-65m / min; The moisture absorption and sweat releasing finishing in S6 uses the dip padding moisture absorption and sweat releasing agent DH, and the dosage is 45-55g / L.

10. A single-side absorbing and single-side repellent polyester-cotton fabric, characterized in that, Prepared by the preparation method in any one of claims 1-9. Prepared by the preparation method in any one of claims 1-9.

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