All-cotton cool-feeling anti-sticking wool fabric based on double singeing synergistic functional finishing and preparation method of all-cotton cool-feeling anti-sticking wool fabric

Abstract

The invention relates to the technical field of textile, in particular to an all-cotton cool-feeling anti-hair-sticking fabric based on dual singeing synergistic function finishing and a preparation method thereof, and the preparation method comprises the steps of first double-sided singeing, desizing-scouring-bleaching, tentering, second double-sided singeing, mercerizing, biological polishing, dyeing, finishing liquid padding, drying and baking, softening, preshrinking and calendaring; a finishing liquid used in the finishing liquid padding step comprises 30-50g / L of an ice feeling finishing agent, 15-30g / L of an anti-hair-sticking finishing agent and 15-30g / L of an antistatic agent, and the pH value is adjusted to 4.0-5.0 by using acetic acid. Through two-time double-sided singeing and synergistic compounding of multiple finishing agents, and in combination with biological polishing and calendaring treatment, the obtained fabric has excellent and lasting anti-hair-sticking performance, remarkable contact cool feeling, smooth appearance and soft hand feeling, is stable in size and good in washability, perfectly solves the problem that all-cotton fabric is prone to hair sticking, and is worthy of popularization and application. The fabric is suitable for high-grade shirts, summer clothes and home textile products.

Description

Technical Field

[0001] This invention relates to the field of textile technology, specifically to a cool-feeling, non-sticky cotton fabric based on a dual singeing synergistic finishing process and its preparation method. Background Technology

[0002] Cotton fabrics are widely used in clothing and home textiles due to their excellent moisture absorption, breathability, and comfort. However, the problem of lint adhesion in cotton fabrics is particularly prominent, becoming a key factor affecting the appearance and comfort of the product. The natural fuzz on the surface of cotton fibers, along with the static electricity and surface roughness of the fibers themselves, makes the fabric highly susceptible to absorbing hair, dust, and other impurities from the environment during wearing, use, and washing. This absorbed hair is difficult to remove completely through conventional cleaning methods, not only ruining the fabric's clean appearance but also potentially causing itching upon skin contact. This problem is particularly pronounced in home textiles and clothing, which come into direct contact with the skin, significantly impacting the user experience. The lint adhesion problem limits the application of cotton fabrics in scenarios requiring high cleanliness, necessitating effective technological improvements. Physical finishing and chemical finishing are currently the most widely used techniques for improving lint adhesion.

[0003] In physical finishing techniques, common processes include singeing, brushing, and washing / beating. These methods remove loose fuzz and fibers from the fabric surface through mechanical friction and high-temperature burning, resulting in a smoother, more even surface and reduced fuzz adhesion. Singeing, in particular, involves controlling the flame temperature and fabric speed to burn off surface fuzz. While simple to operate, this method requires precise control of process parameters; otherwise, it can lead to a decrease in fabric strength or surface damage. Washing / beating removes surface fuzz through a combination of water jet impact and mechanical beating, improving the fabric's feel. However, its effectiveness is limited, and fuzz can regrow after repeated washing.

[0004] Chemical finishing techniques primarily involve applying functional finishing agents to the fabric surface to alter its physicochemical properties and reduce its ability to attract lint. Commonly used chemical finishing agents include antistatic agents and silicone softeners. Antistatic agents reduce static electricity buildup on the fabric surface, minimizing lint adhesion caused by static electricity. Silicone finishing agents form a smooth film on the fabric surface, improving surface lubrication and reducing friction and adhesion between lint and the fabric. Some solutions also employ chemical modification methods such as graft copolymerization to introduce functional groups onto the cotton fiber surface, altering the fiber's hydrophilicity / hydrophobicity and charge properties to fundamentally improve lint adhesion. However, existing chemical finishing techniques have certain limitations. Some finishing agents may affect the fabric's natural breathability and skin-friendliness, and the finishing effect lacks durability, easily becoming ineffective after multiple washes. Furthermore, the use of some chemical reagents may raise environmental concerns. Some technologies use a combination of multiple finishing agents to enhance lint resistance, but most solutions do not consider the synergy between the finishing agents and the process, and lack a comprehensive balance of the fabric's multiple properties. In particular, how to fully leverage the synergistic effect of various finishing agents through meticulous process design while maintaining the inherent advantages of cotton fabrics remains a technical challenge that existing technologies have not yet fully resolved.

[0005] Chinese invention patent application CN 120099786 A discloses a method for preparing a lint-resistant fabric based on cellulose fibers. This method improves the smoothness of the fabric through mercerizing, reducing the possibility of hair mechanically embedding and adhering to the fabric; it imparts antistatic properties to the fabric through blending, reducing electrostatic adsorption; and it reduces the van der Waals forces of the fabric through hydrophobic finishing, thereby reducing adhesion and giving the fabric a lint-resistant effect. However, hydrophobic finishing creates a hydrophobic layer on the fabric surface, which, while reducing adhesion, also makes the fabric feel stiff, sacrificing the inherent skin-friendly softness of cotton fabric and affecting wearing comfort. Secondly, the problem of functional limitation is prominent. This technology only focuses on improving lint-resistant performance, without considering the multiple functional requirements of the fabric, and cannot meet the market's pursuit of comprehensive performance such as coolness, lasting softness, and high washability. Third, the anti-lint mechanism is relatively simple, mainly relying on surface hydrophobic modification and antistatic effect. It does not completely remove the adsorption sites of hair and other particles from the physical level, resulting in limited durability of the anti-lint effect. It is easy for the performance to degrade after long-term use or multiple washes.

[0006] Chinese invention patent application CN 103603155 A proposes a processing method for a pure cotton cooling knitted fabric, which achieves the cooling function of pure cotton fabric, but there are obvious shortcomings in terms of overall performance optimization. First, no targeted solution is designed for the core problem of lint adhesion in pure cotton fabrics. The bio-polishing enzyme treatment can only remove some surface lint, and it lacks the synergy of subsequent physical calendering or antistatic finishing. There are still certain adsorption sites on the fabric surface, which easily adsorb hair and impurities in the environment.

[0007] Chinese invention patent application CN 115559135 A discloses a method for manufacturing a cotton fabric with continuous cooling and dryness. In the printing process, a printing liquid containing cooling phase change microcapsules and a water-repellent agent is applied to the skin-friendly side of the fabric. The continuous cooling effect is achieved through the endothermic phase change of the phase change microcapsules, and the water-repellent treatment on the skin-friendly side further enhances the dryness. However, this technical solution has limitations in improving lint resistance. The issues of surface charge accumulation and friction on the fabric are not fundamentally resolved, and a certain tendency for lint to adhere remains.

[0008] In summary, existing technologies have failed to achieve a comprehensive balance of multiple properties, including lint resistance, cooling sensation, and softness against the skin. Therefore, developing a preparation technology that can synergistically address the multiple defects of all-cotton fabrics while taking into account both functionality and natural advantages remains a pressing technical challenge in the textile dyeing and finishing industry. Summary of the Invention

[0009] To address the shortcomings of existing technologies in comprehensively balancing the multiple properties of cotton fabrics, such as lint resistance, cooling sensation, and softness against the skin, this paper proposes a method for preparing a cool-feeling, lint-resistant cotton fabric based on a dual singeing synergistic finishing process. Through a process involving two double-sided singeing and a composite finishing agent, utilizing a combination of physical lint removal, bio-polishing, chemical modification, and mechanical calendering techniques, the resulting fabric possesses excellent and durable lint resistance, a significant cooling sensation upon contact, a smooth appearance, and a soft hand feel. It also exhibits dimensional stability and good washability, perfectly solving the problem of lint adhesion in cotton fabrics. This fabric is suitable for high-end shirts, summer clothing, and home textile products.

[0010] The technical solution of the present invention is as follows: In a first aspect, the present invention provides a method for preparing a cool-feeling, non-sticky cotton fabric based on a dual singeing synergistic finishing process, comprising the following steps performed sequentially: First double-sided singeing, descaling and bleaching, stretching, second double-sided singeing, mercerizing, biopolishing, dyeing, finishing solution padding, drying and baking, softening, pre-shrinking and calendering; The temperature of the first double-sided singeing is 900~1100℃, and the speed of the vehicle is 90~100m / min. The temperature of the second double-sided singeing is 850~950℃, and the speed of the vehicle is 100~120m / min; Biopolishing uses cellulase to polish the fabric. The concentration of cellulase in the polishing solution is 1~3g / L. The pH of the polishing solution is adjusted to 4.5~5.5 with acetic acid. The polishing temperature is 55~60℃, the treatment time is 1~2h, and the liquor ratio is 1:10~15. After completion, the temperature is raised to 80~85℃ to inactivate the enzyme for 5~30min. The fabric is then thoroughly washed with water to further remove surface fuzz and make the fabric smooth. The finishing solution used in the finishing solution padding step includes 30~50g / L of ice-feeling finishing agent, 15~30g / L of anti-lint finishing agent, and 15~30g / L of antistatic agent, and the pH value is adjusted to 4.0~5.0 with acetic acid; The calendering step uses an electro-optical calender to compact the fibers. The roller temperature is 170~190℃, the pressure is 130~150N, and the speed is 40~50m / min. This gives the fabric an aurora surface and a smooth feel, ultimately producing a cool-feeling, non-sticky cotton fabric.

[0011] Furthermore, the first and second double-sided singeing processes are performed on the cotton fabric using a gas singeing machine. The first double-sided singeing effectively removes surface lint, while the second double-sided singeing further removes any fuzz that may have been generated in the previous process, resulting in a smoother fabric surface.

[0012] Furthermore, the desizing, scouring and bleaching steps employ a cold-pile stacking method for desizing, scouring and bleaching in a single bath to remove impurities, sizing agents and natural pigments from the cotton fibers. The cold-pile stacking time is 20-24 hours, followed by hot washing at a high temperature of over 95℃ and thorough washing until neutral. After the desizing, scouring and bleaching steps, the capillary effect is ≥10cm / 30min.

[0013] Furthermore, the stretching step involves placing the descaled and bleached fabric on a stretching machine at 100~120℃ for preliminary shaping, with the width controlled to 98%~99% of the finished product width.

[0014] Furthermore, mercerizing is performed using a fabric mercerizing machine. Under process conditions of 50~60m / min, the greige fabric is expanded to the original width under tension. After that, it is rinsed, dealkali removed, steamed, and neutralized to stabilize the fabric size and increase the fiber luster and chemical activity.

[0015] Furthermore, the finishing solution used in the finishing solution padding step also includes 1~3 g / L of penetrant.

[0016] Furthermore, the finishing liquid immersion and rolling step adopts a one-immersion-one-roll method, with a roll residue rate of 65%~75%.

[0017] Furthermore, the drying and baking process involves drying the impregnated fabric at 100-110°C for 2-3 minutes, followed by baking at 160-170°C for 1-2 minutes.

[0018] Furthermore, the softening step involves applying silicone oil softener on a setting machine via a rolling mill. The amount of silicone oil softener is 10~30g / L, the speed is 50~60m / min, and the temperature is 120~130℃, giving the fabric a soft and smooth feel.

[0019] Furthermore, a rubber blanket pre-shrinking machine is used for pre-shrinking treatment, with the rubber blanket temperature at 110~120℃, the felt temperature at 90~100℃, and the machine speed at 40~50m / min, to improve the dimensional stability of the fabric.

[0020] Secondly, the present invention also provides a cotton cool-feeling non-sticky fabric obtained by the above preparation method.

[0021] The beneficial effects of this invention are as follows: (1) Synergistic effect of multiple anti-sticking mechanisms: The surface hair is completely removed by double-sided singeing and biopolishing, which fundamentally reduces the adsorption points from a physical perspective; the friction coefficient is reduced by anti-sticking finishing agent and antistatic agent to eliminate static electricity; and finally, a smooth surface is formed by calendering. The synergistic effect of multiple mechanisms makes the anti-sticking effect significant and water-resistant.

[0022] (2) The addition of cooling finishing agent gives the fabric a significant cool touch, making it particularly suitable for summer clothing; subsequent softening and pre-shrinking treatments ensure the final soft and full feel and flat dimensions of the fabric, achieving a perfect combination of functionality and comfort.

[0023] (3) The first double-sided singeing removes the original fuzz, and the second double-sided singeing removes the secondary fuzz generated in the pretreatment. Combined with the stretching step, the fabric surface is stabilized, providing a uniform substrate for subsequent finishing. The process is reasonably connected and the synergistic effect is significant.

[0024] (4) The process flow design of the preparation method of the present invention is reasonable, can be adapted to the conventional equipment of modern dyeing and finishing plants, and is easy to promote and mass-produce. Detailed Implementation

[0025] To enable those skilled in the art to better understand the technical solutions of this invention, the technical solutions in the embodiments of this invention will be clearly and completely described below. Obviously, the described embodiments are only some embodiments of this invention, and not all embodiments. Based on the embodiments of this invention, all other embodiments obtained by those skilled in the art without creative effort should fall within the scope of protection of this invention.

[0026] This invention provides a method for preparing a cool-feeling, non-sticky cotton fabric based on a dual singeing synergistic finishing process. Through a series of refined processes implemented sequentially, the core defects of cotton fabrics are addressed collaboratively. The beneficial effects of each process and technical means are as follows: S1. First double-sided singeing: Using a gas singeing machine, under the conditions of a flame temperature of 900~1100℃ and a machine speed of 90~100m / min, the original fibers on the surface of the cotton fabric are quickly and powerfully removed, reducing the physical sites for hair adsorption from the source, and laying a smooth fabric surface foundation for subsequent processes.

[0027] S2, Desizing, Scouring and Bleaching: The cold stacking method is used to achieve desizing, scouring and bleaching in one bath. The full stacking for 20 to 24 hours combined with high-temperature washing above 95℃ can thoroughly remove sizing impurities and natural pigments from cotton fibers, giving the fabric an excellent wicking effect of ≥10cm / 30min. This not only improves the uniformity of subsequent finishing solutions but also ensures the purity of the fabric color and avoids interference from impurities on the functional finishing effect.

[0028] S3. Tensioning: On the tenter frame, the fabric after scouring and bleaching is initially shaped at 100~120℃, and the width is strictly controlled to 98%~99% of the finished width. This effectively stabilizes the width of the fabric, reduces the risk of deformation in subsequent processing, and provides a uniform processing substrate for each functional finishing process.

[0029] S4. Second Double-Sided Singeing: Using a gas singeing machine, the flame temperature is adjusted to 850~950℃ and the machine speed is increased to 100~120m / min. This precisely removes secondary fuzz that may be generated in the previous processes such as scalding, bleaching, and stretching, further optimizing the fabric surface smoothness and improving the smoothness of the fabric surface in a step-by-step manner, effectively reducing the contact adhesion between hair and the fabric.

[0030] S5. Mercerizing: Using a mercerizing machine with clips, the fabric is expanded to its original width under tension at a speed of 50~60m / min. After rinsing, alkali removal, steaming, and neutralization, the crystalline structure of the cotton fibers is optimized, which not only significantly improves the fiber luster and chemical activity and enhances the binding fastness of subsequent dyes and finishing agents, but also further stabilizes the fabric size, reduces shrinkage and deformation during use, and gives the fabric a high-end texture.

[0031] S6. Biopolishing: A polishing solution containing 1-3 g / L of cellulase is selected and treated for 1-2 hours under optimal reaction conditions of pH 4.5-5.5 and 55-60℃. The liquor ratio is controlled at 1:10-15. This can accurately degrade loose hairs and fiber tip impurities on the fabric surface. After enzyme inactivation at 80-85℃ for 5-30 minutes and thorough washing, the smoothness and fineness of the fabric surface are greatly improved. At the same time, it reduces secondary lint adhesion caused by hair regeneration. Combined with the previous singeing process, it forms multiple physical hair removal guarantees.

[0032] S7. Dyeing: The dyeing process is carried out on a clean fabric surface after bio-polishing. Thanks to the improved fiber activity and fabric uniformity of the previous process, the dye can quickly and evenly penetrate and firmly bind, making the fabric color full and uniform, and significantly improving the color fastness, thus avoiding fading and color loss problems during subsequent use.

[0033] S8. Finishing Solution Padding: A one-dip-one-padding method is adopted, with the padding rate controlled at 65%~75%, ensuring that the finishing solution can be evenly and sufficiently adhered to the fabric fiber surface. The finishing solution contains a compound of 30~50g / L cooling agent, 15~30g / L anti-lint agent, and 15~30g / L antistatic agent. After adjusting the pH value to a suitable range of 4.0~5.0 with acetic acid, the three types of auxiliaries work synergistically. The cooling agent gives the fabric a significant cooling sensation upon contact, the anti-lint agent reduces the adhesion of the fabric surface, and the antistatic agent effectively inhibits the generation of static electricity, chemically blocking multiple pathways for hair adsorption. The addition of 1~3g / L penetrant further enhances the penetration depth of the finishing solution into the fiber, ensuring that the functional auxiliaries are evenly distributed inside and outside the fiber, avoiding the shedding of the surface functional layer. Combined with the efficient one-dip-one-padding process, the finishing effect is guaranteed while reducing auxiliary waste.

[0034] S9. Drying and Baking: Functional fixation is achieved through segmented temperature control. Drying at 100~110℃ for 2~3 minutes can quickly remove moisture from the fabric surface, providing a dry environment for subsequent baking. Baking at 160~170℃ for 1~2 minutes can promote the cross-linking reaction between the functional additives in the finishing solution and the cotton fibers, forming a strong functional film. This significantly improves the washability of functions such as cooling, anti-lint, and antistatic properties, ensuring that the fabric can maintain excellent functional effects after multiple washes, thus solving the problem of insufficient functional durability in existing technologies.

[0035] S10, Softening: Apply 10~30g / L of silicone oil softener on the setting machine through a rolling mill. Under process conditions of 120~130℃ and 50~60m / min, the silicone oil softener can form a smooth and lubricating film on the fiber surface. This not only effectively improves the stiff hand feel of traditional functional finished fabrics and gives the fabric a soft and smooth feel, but also further reduces the surface friction coefficient of the fabric, helps to improve the anti-lint performance, and achieves a perfect balance between functionality and comfort.

[0036] S11. Pre-shrinkage: Using a rubber blanket pre-shrinking machine, under the conditions of rubber blanket temperature of 110~120℃, blanket temperature of 90~100℃, and machine speed of 40~50m / min, the elastic shrinkage of the rubber blanket drives the fabric to pre-shrink, so that the residual stress inside the fabric is fully released, which significantly improves the dimensional stability of the fabric, effectively controls the shrinkage rate of the finished product within a reasonable range, avoids dimensional deformation after wearing and washing, and ensures the durability of the product's appearance.

[0037] S12. Calendering: Using an electro-optic calender, at a high temperature of 170~190℃, a pressure of 130~150N, and a speed of 40~50m / min, the fabric fibers are further compacted, giving the fabric an aurora effect and a smooth touch. This not only enhances the visual quality and tactile experience of the fabric, but also further reduces surface gaps and fuzz protrusions, physically blocking hair adsorption. This works synergistically with the previous singeing, biopolishing, and chemical finishing, significantly improving the durability and stability of the anti-lint effect.

[0038] The process parameters of each of the above steps have been precisely matched and synergistically optimized, forming a comprehensive technical system from physical de-hairing, biological polishing, chemical modification and functional imparting to mechanical calendering and setting. This system not only completely solves the problem of lint sticking caused by excessive lint and static electricity in cotton fabrics, but also overcomes the shortcomings of existing technologies such as single function, stiff hand feel, and poor washability. The resulting cotton fabric has excellent anti-lint properties, significant cooling sensation upon contact, soft and smooth hand feel, stable dimensions, and excellent washability. It can meet the high-quality requirements of high-end shirts, summer clothing, and home textile products, and has broad industrial application prospects.

[0039] This invention also provides a cotton cool-feeling, non-sticky fabric prepared by combining the above-mentioned multi-process synergistic techniques, which has the following advantages: After undergoing a triple physical dehairing process involving a first double-sided singeing, a second double-sided singeing, and bio-polishing, combined with the chemical modification of the anti-pilling agent and antistatic agent in the finishing solution, and the physical compaction of the calendering process, the fabric's hair adhesion is reduced to as low as 14 hairs / cm. 2 Even after 20 washes, the amount of hair adhering to the surface remains at 9 hairs / cm. 2 The anti-lint effect meets the qualified standard, completely solving the core problem of cotton fabrics being prone to lint adhesion.

[0040] The cooling agent in the finishing solution, at a concentration of 30-50 g / L, binds firmly to the fibers after baking, resulting in a cooling coefficient of 0.19 J / (cm·s) for the fabric, which meets the cooling performance testing standards and provides a continuous and comfortable cooling experience for summer use.

[0041] The biopolishing process effectively removes loose fuzz from the surface. The application of 10~30g / L silicone oil softener in the softening process results in warp and weft bending lengths of 1.904cm and 1.578cm, respectively, and bending stiffnesses of 0.894mN·cm and 0.411mN·cm, respectively, demonstrating excellent softness. At the same time, the synergistic effect of the calendering process and finishing agent reduces the static friction coefficient of the fabric to as low as 0.234 / 0.137 and the dynamic friction coefficient to 0.134 / 0.066, resulting in excellent surface smoothness and a smooth and delicate touch.

[0042] Through multiple processes of stretching, mercerizing, and pre-shrinking, the fabric undergoes dimensional calibration and stress release, with the pre-shrinkage rate controlled at 3%~5%. This prevents shrinkage and deformation during subsequent use, ensuring consistent product appearance. The various functional finishing agents are baked at 160~170℃ and cross-linked with fibers. Combined with precise matching of process parameters throughout the entire process, the fabric maintains stable performance after multiple washes, and its washability meets the requirements for high-end textiles.

[0043] In summary, through a comprehensive and synergistic technical system of physical, biological, and chemical finishing and mechanical processing, the fabric of this invention achieves a balance of multiple properties such as lint resistance, coolness, softness, smoothness, dimensional stability, and washability. All key performance indicators meet the expected standards and satisfy the high-quality requirements of high-end clothing and home textile products.

[0044] The cellulase used in the following embodiments of the present invention was manufactured by Genentech (China) Biotechnology Co., Ltd. The cooling finishing agent is cooling silicone oil CMA, manufactured by Shanghai Gusang Chemical Co., Ltd. It is mainly used to improve the cooling sensation of the fabric, enhance its softness and hydrophilicity, and increase the smoothness and flatness of the fabric. The anti-sticking finishing agent is FNB, manufactured by Shanghai Gusang Chemical Co., Ltd. The antistatic agent is KJ-4, manufactured by Shanghai Gusang Chemical Co., Ltd. The penetrant is penetrant S-015, manufactured by Zibo Fengjiayi Textile Trading Co., Ltd.

[0045] Example 1 A type of all-cotton cooling and lint-resistant fabric is produced using 60s all-cotton yarn for both warp and weft, with a warp density of 173 threads / inch and a weft density of 125 threads / inch. The fabric has a 4 / 1 left twill weave. The all-cotton cooling and lint-resistant fabric is produced according to the following preparation method: S1. First double-sided singeing: The fabric is singeed on both sides using a gas singeing machine. The air pressure is 18Pa, the flame temperature is 1000℃, and the machine speed is 90m / min. S2. De-scalding and bleaching: Use cold stacking method for 22 hours, then hot wash at 98℃, wash thoroughly until neutral, and the fabric wicking effect is 12cm / 30min. S3. Tensile Stirring: The fabric after scalding and bleaching is initially shaped on a tenter frame at 120℃, with the width controlled to 98%~99% of the finished width; S4. Second double-sided singeing: A gas singeing machine is used for double-sided singeing with one front and one back. The air pressure is 18Pa, the nozzle temperature is 900℃, and the machine speed is 100m / min. S5. Mercerizing: The fabric is mercerized using a fabric mercerizing machine with a solution containing 185g / L ion-exchange membrane liquid alkali (32%) and 4g / L glacial acetic acid at a speed of 50m / min. S6. Biopolishing: The mercerized fabric was polished for 2 hours at 60℃ using a solution of 1.2 g / L cellulase, 0.2 g / L acetic acid, and pH 4.5 with a bath ratio of 1:10. Then, the enzyme was inactivated at 80℃ for 30 minutes and thoroughly washed with water. S7. Dyeing: The fabric after biopolishing is dyed with a reactive dye solution at 60℃, with a liquor ratio of 15:1, and then dried at 100℃. S8. Finishing solution padding: The finishing solution includes a compound of 40 g / L cooling finishing agent, 30 g / L anti-pilling finishing agent, 30 g / L antistatic agent and 2 g / L penetrant. The pH of the finishing solution is adjusted to 4.5 with acetic acid. One dip and one padding method is adopted, and the padding rate is 70%. S9. Drying and baking: First, dry at 100℃ for 3 minutes, then bake at 170℃ for 1 minute; S10, Softening: Apply 20g / L silicone oil softener and 2g / L penetrant on the stenter by rolling on the stenter, and perform softening treatment at 120℃ and 50m / min. S11. Pre-shrinkage: A rubber blanket pre-shrinkage machine is used, with the rubber blanket temperature at 110℃, the felt temperature at 90℃, the machine speed at 40m / min, and the pre-shrinkage rate of the fabric controlled at 4%.

[0046] S12. Calendering: An electro-optical calendering machine is used with a calendering temperature of 170℃, a pressure of 150N, and a machine speed of 40m / min to further compact the fibers.

[0047] Comparative Example 1 The main difference between Comparative Example 1 and Example 1 is that after step S3, stretching treatment, step S5, mercerizing treatment is performed directly, and step S4, second double-sided singeing is no longer performed.

[0048] Example 2 A type of all-cotton cooling and lint-resistant fabric is produced using 60s all-cotton yarn for both warp and weft, with a warp density of 200 threads / inch and a weft density of 98 threads / inch. The fabric has a 4 / 1 left twill weave. The all-cotton cooling and lint-resistant fabric is produced according to the following preparation method: S1. First double-sided singeing: Use a gas singeing machine to singe on both sides, one front and one back, with a wind pressure of 18Pa, a flame temperature of 1100℃, and a machine speed of 100m / min. S2. De-scalding and bleaching: Use cold piling method for 20 hours, then hot wash at 96℃, wash thoroughly until neutral, and the fabric wicking effect is 11cm / 30min. S3. Tensioning: The fabric after scalding and bleaching is initially shaped on a tenter frame at 100℃, with the width controlled to 98%~99% of the finished width; S4. Second double-sided singeing: A gas singeing machine is used for double-sided singeing with one front and one back. The air pressure is 18Pa, the nozzle temperature is 850℃, and the machine speed is 120m / min. S5. Mercerizing: The fabric is mercerized using a fabric mercerizing machine with a solution containing 185g / L ion-exchange membrane liquid alkali (32%) and 4g / L glacial acetic acid at a speed of 60m / min. S6. Biopolishing: The mercerized fabric was polished for 1 hour at 55℃ using a solution of 2.5 g / L cellulase, 0.2 g / L acetic acid, and pH 5.5 with a bath ratio of 1:15. Then, the enzyme was inactivated at 85℃ for 30 minutes and thoroughly washed with water. S7. Dyeing: The fabric after biopolishing is dyed with a reactive dye solution at 60℃, with a liquor ratio of 15:1, and then dried at 100℃. S8. Finishing solution padding: The finishing solution includes a compound of 50 g / L ice-feeling finishing agent, 20 g / L anti-pilling finishing agent, 20 g / L antistatic agent and 1 g / L penetrant. The pH of the finishing solution is adjusted to 5.0 with acetic acid. One dip and one padding method is adopted, and the padding rate is 65%. S9. Drying and baking: First, dry at 110℃ for 2 minutes, then bake at 160℃ for 2 minutes; S10, Softening: Apply 30g / L silicone oil softener on the setting machine by rolling, and perform softening treatment at 130℃ and 60m / min. S11. Pre-shrinkage: A rubber blanket pre-shrinkage machine is used, with the rubber blanket temperature at 120℃, the felt temperature at 100℃, the machine speed at 50m / min, and the pre-shrinkage rate of the fabric controlled at 3%.

[0049] S12. Calendering: An electro-optical calendering machine is used with a calendering temperature of 190℃, a pressure of 130N, and a machine speed of 50m / min to further compact the fibers.

[0050] Comparative Example 2 The main difference between Comparative Example 2 and Example 2 is that after step S3, stretching treatment, step S5, mercerizing treatment is performed directly, and step S4, second double-sided singeing is no longer performed.

[0051] The performance of the all-cotton cooling and non-sticky fabrics prepared in Examples 1-2 and Comparative Examples 1-2 was tested, and all tests were performed according to the corresponding standards: The amount of hair adhesion was tested according to the standard "Anti-sticking Pet Hair Fabrics for Home Textiles" (T / HOMETEX 45-2024), the contact cooling coefficient was tested according to the standard "Test and Evaluation of Instantaneous Cooling Performance of Textiles" (GB / T 35263-2017), the fabric softness was tested according to the standard "Determination of Bending Properties of Textiles Part 1: Inclined Plane Method" (GB / T 18318.1-2009), and the surface smoothness was tested according to the standard "Test Method for Friction Properties of Fabric Surfaces" (FZ / T 01054-2012). The test results are detailed in Table 1.

[0052] Table 1. Fabric performance test results

[0053] As shown in Table 1, the fabrics of Examples 1 and 2 have satisfactory anti-lint effects, and these effects remain satisfactory even after 20 washes. Furthermore, Example 2 exhibits better anti-lint effects and a higher cooling coefficient than Example 1. Comparative Examples 1 and 2 also have relatively high cooling coefficients, but are slightly inferior to Examples 1 and 2. More importantly, the fabrics of Comparative Examples 1 and 2 fail to meet the anti-lint effect requirements.

[0054] Meanwhile, Table 1 also shows that the test values ​​of warp and weft bending length, bending stiffness, static friction coefficient, dynamic friction coefficient and coefficient of variation of Examples 1 and 2 are all small, indicating that the fabric has good softness and surface smoothness, confirming that the use of softener has played a role. The good fabric smoothness is due to the dual effect of singeing process and functional additives.

[0055] Although the present invention has been described in detail by way of preferred embodiments, the present invention is not limited thereto. Various equivalent modifications or substitutions can be made to the embodiments of the present invention by those skilled in the art without departing from the spirit and essence of the invention, and such modifications or substitutions should all be within the scope of the present invention. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present invention should also be covered within the protection scope of the present invention.

Claims

1. A method for preparing a cool-feeling, non-sticky cotton fabric based on a dual singeing synergistic finishing process, characterized in that, This includes the following steps performed sequentially on the greige fabric: First double-sided singeing, descaling and bleaching, stretching, second double-sided singeing, mercerizing, biopolishing, dyeing, finishing solution padding, drying and baking, softening, pre-shrinking and calendering; The temperature of the first double-sided singeing is 900~1100℃, and the speed of the vehicle is 90~100m / min. The temperature of the second double-sided singeing is 850~950℃, and the speed of the vehicle is 100~120m / min; Biopolishing uses cellulase to polish the fabric. The concentration of cellulase in the polishing solution is 1~3g / L. The pH of the polishing solution is adjusted to 4.5~5.5 with acetic acid. The polishing temperature is 55~60℃, the treatment time is 1~2h, and the bath ratio is 1:10~15. After completion, the temperature is raised to 80~85℃ to inactivate the enzyme for 5~30min, followed by thorough washing with water. The finishing solution used in the finishing solution padding step includes 30~50g / L of ice-feeling finishing agent, 15~30g / L of anti-lint finishing agent, and 15~30g / L of antistatic agent, and the pH value is adjusted to 4.0~5.0 with acetic acid; The calendering process uses an electro-optical calender to compact the fibers. The roller temperature is 170~190℃, the pressure is 130~150N, and the speed is 40~50m / min, ultimately producing a cool-feeling, non-sticky cotton fabric.

2. The preparation method according to claim 1, characterized in that, The first and second double-sided singeing were performed on the cotton fabric using a gas singeing machine.

3. The preparation method according to claim 1, characterized in that, The desizing, scouring and bleaching steps adopt the cold pile method for desizing, scouring and bleaching in one bath. The cold pile time is 20~24 hours, followed by hot washing at a high temperature of above 95℃ and water washing until neutral. After the desizing, scouring and bleaching steps, the capillary effect is ≥10cm / 30min.

4. The preparation method according to claim 1, characterized in that, The stretching step involves placing the descaling and bleaching fabric on a stretching machine at 100-120℃ for initial shaping, with the width controlled to be 98%-99% of the finished product width.

5. The preparation method according to claim 1, characterized in that, Mercerizing is performed using a fabric mercerizing machine. Under a process speed of 50~60m / min, the fabric is expanded to the original width under tension. After that, it is rinsed, dealkali removed, steamed, and neutralized.

6. The preparation method according to claim 1, characterized in that, The finishing solution used in the finishing solution padding step also includes 1~3g / L of penetrant; the finishing solution padding step adopts a one-dip-one-pinch method, with a padding rate of 65%~75%.

7. The preparation method according to claim 1, characterized in that, Drying and baking involve drying the impregnated fabric at 100-110℃ for 2-3 minutes, followed by baking at 160-170℃ for 1-2 minutes.

8. The preparation method according to claim 1, characterized in that, The softening step involves applying silicone oil softener on a setting machine using a rolling mill. The amount of silicone oil softener is 10~30g / L, the rolling speed is 50~60m / min, and the temperature is 120~130℃.

9. The preparation method according to claim 1, characterized in that, The pre-shrinking process is carried out using a rubber blanket pre-shrinking machine. The temperature of the rubber blanket is 110~120℃, the temperature of the felt is 90~100℃, and the machine speed is 40~50m / min.

10. A cotton cool-feeling non-sticky fabric obtained by the preparation method according to any one of claims 1-9.

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