Strong-sunscreen, high-air-permeability, moisture-absorption and quick-drying wrinkled fabric and preparation method thereof

Abstract

The invention relates to the technical field of fabrics, in particular to a highly sunscreen, highly breathable, moisture-absorbing and quick-drying wrinkled fabric and a preparation method thereof.The preparation method includes the steps that modified carboxylated carbon nanotubes and dull or semi-dull PET slices are blended and subjected to melt spinning to prepare modified polyester fibers; the modified polyester fibers are used as raw materials, and double-faced knitted base cloth is woven through a double-faced knitting machine; the inner layer of the double-sided knitted base cloth is formed by weaving modified polyester fibers; the surface layer of the double-sided knitted base cloth is formed by interweaving modified polyester fibers or polyamide fibers, the base cloth is subjected to two-dipping and two-rolling treatment, pre-drying and baking by using a dialdehyde carboxymethyl chitosan solution, and then dip dyeing treatment is performed by using a dye; preparing a finishing agent from gelatin, dialdehyde carboxymethyl chitosan, modified carboxylated carbon nanotubes and deionized water, treating the pretreated base cloth, and then performing crumpling treatment.

Description

Technical Field

[0001] The invention relates to the technical field of fabrics, in particular to a highly sun-proof, highly breathable, moisture-absorbing and quick-drying wrinkled fabric and a preparation method thereof. Background Art

[0002] With the improvement of people's material living standards, the demand for textiles is moving towards diversification, fashion and functionality. Multifunctional textiles with UV resistance, comfort and breathability have become the focus of industry research and development.

[0003] Traditional sunscreen fabrics often use coatings or blends of UV-blocking additives to improve UV resistance. While these offer basic protection, they often suffer from issues like UV-blocking additives fading and impaired breathability, making them difficult to wear for extended periods. Furthermore, traditional polyester fabrics have poor flame retardancy and antibacterial properties, and they don't absorb moisture quickly or dry quickly in hot summer weather, failing to meet growing consumer demand. Summary of the Invention

[0004] The purpose of the present invention is to provide a strong sun-proof, highly breathable, moisture-absorbing and quick-drying pleated fabric and a preparation method thereof, so as to solve the problems in the prior art.

[0005] In order to solve the above technical problems, the present invention provides the following technical solutions: A method for preparing a strong sun-proof, highly breathable, moisture-absorbing and quick-drying wrinkled fabric comprises the following steps: S1: drying, blending, melt-spinning, cooling, and winding the modified carboxylated carbon nanotubes, antioxidant, and PET chips to obtain modified polyester fibers; S2: using modified polyester fiber as raw material, weaving a double-sided knitted base fabric on a double-sided knitting machine; the inner layer of the double-sided knitted base fabric is woven from modified polyester fiber; the surface layer of the double-sided knitted base fabric is formed by interweaving modified polyester fiber or nylon fiber; S3: firstly, the double-sided knitted base fabric is subjected to a double-dipping and double-padding treatment with a dialdehyde carboxymethyl chitosan solution, pre-baked and baked, and then subjected to an impregnation dyeing treatment with a dye, soaped, washed, and dried to obtain a pretreated base fabric; S4: preparing a finishing solution using gelatin, polyether epoxy co-modified silicone oil emulsion, dialdehyde carboxymethyl chitosan, modified carboxylated carbon nanotubes, and deionized water; S5: placing the pretreated base fabric into the finishing liquid, performing padding treatment, wrinkle treatment, shaping, and drying to obtain a highly sun-proof, highly breathable, moisture-absorbing, and quick-drying wrinkle fabric.

[0006] Furthermore, the PET slice is one of a semi-matt PET slice and a fully matt PET slice.

[0007] Furthermore, in the preparation of the modified polyester fiber, the mass ratio of the antioxidant, the modified carboxylated carbon nanotubes, and the PET chips is 0.1:1:99.

[0008] Furthermore, the working conditions of the crumpling treatment are: temperature 180-200℃, pressure 5-15kg / cm 2 , time 10-30s, the wrinkling direction is one of the longitudinal and transverse directions.

[0009] When the dye is black dye, the UPF value of the fabric is higher than 2000.

[0010] During the wrinkle treatment, the fabric is laid on the backing paper and then covered with another layer of backing paper to form a sandwich structure. This prevents the fabric from directly contacting the mold, which may cause excessive indentations or damage, and at the same time protects the surface gloss of the fabric.

[0011] Furthermore, the mass ratio of nylon fiber to modified polyester fiber in the surface layer is 4:6.

[0012] Furthermore, the double-sided knitted base fabric has a gram weight of 108-112 g / m 2 .

[0013] Furthermore, the working conditions of the double-dipping and double-rolling treatment are: dipping time is 60s, rolling rate is 100%, pre-baking working conditions are: keeping warm at 78-82℃ for 4-6min; baking working conditions are: keeping warm at 120-130℃ for 2-4min; working conditions of the dyeing treatment are: keeping warm at 85-90℃ for 50-60min, bath ratio is 1:(40-55), and pH is 5.5.

[0014] Furthermore, the working conditions of the padding treatment are: three-dipping and three-rolling treatment, the dipping time is 90-100s, and the rolling rate is 80%.

[0015] Furthermore, in the finishing liquid, the mass ratio of gelatin, polyether epoxy co-modified silicone oil emulsion, dialdehyde carboxymethyl chitosan, and modified carboxylated carbon nanotubes is 3:0.5:12:1, and the usage ratio of dialdehyde carboxymethyl chitosan to deionized water is 1 g: (40-50) mL.

[0016] Furthermore, the polyether epoxy co-modified silicone oil emulsion is prepared by compounding polyether epoxy co-modified silicone oil, emulsifier, and deionized water in a mass ratio of 5:1:10.

[0017] Further, the preparation of dialdehyde carboxymethyl chitosan comprises the following steps: Mix carboxymethyl chitosan and deionized water, add sodium periodate, adjust the pH to 3.5, stir at 38-42°C in the dark for 3-4 hours, add ethylene glycol, stir at 18-25°C for 20-30 minutes, wash with tert-butanol by centrifugation 3-5 times, freeze-dry and grind to obtain dialdehyde carboxymethyl chitosan.

[0018] Furthermore, the preparation of modified carboxylated carbon nanotubes includes the following steps: (1) Zinc acetate dihydrate and methanol were mixed, carboxylated carbon nanotubes and polyvinyl pyrrolidone were added, ultrasonicated for 8-10 minutes, heated to 58-60°C, a mixture of potassium hydroxide and methanol was added, stirred for 1-2 hours, transferred to a reactor, kept warm at 178-180°C for 11-12 hours, filtered, washed, and dried to obtain composite carboxylated carbon nanotubes; (2) Under a nitrogen atmosphere, the composite carboxylated carbon nanotubes, thionyl chloride, and N,N-dimethylformamide were mixed, stirred at 68-72°C for 22-24 hours, decompressed, dried, transferred to N,N-dimethylformamide, heated to 58-62°C and ultrasonically dispersed for 25-30 minutes, and a mixed solution of pyridine, N,N-dimethylformamide, and hyperbranched polyamide was added, stirred at 18-25°C for 22-24 hours, filtered, washed until neutral, dried, and ground to obtain polyamino-modified composite carboxylated carbon nanotubes; (3) The polyamino-modified composite carboxylated carbon nanotubes, epoxy POSS containing DOPO, triethanolamine, and N,N-dimethylformamide were mixed, ultrasonically stirred for 10-20 minutes, kept at 60-70°C for 3-5 hours, washed, and dried to obtain modified carboxylated carbon nanotubes.

[0019] Furthermore, the preparation of epoxy POSS containing DOPO comprises the following steps: 1) Tetramethylammonium hydroxide pentahydrate, isopropyl alcohol, and deionized water were mixed, and a mixture of γ-(2,3-epoxypropoxy)propyltrimethoxysilane and isopropyl alcohol was added. The mixture was stirred at 28-32°C for 6 hours, and then rotary evaporated. Toluene was added and the temperature was raised to 88-90°C and kept warm for 3-4 hours to obtain polyepoxy POSS. 2) Mix polyepoxy POSS, DOPO, triphenylphosphine, and toluene, heat to 118-120°C and maintain for 110-130 minutes, and perform vacuum distillation and drying to obtain epoxy POSS containing DOPO.

[0020] Compared with the prior art, the present invention has the following beneficial effects: The present invention provides a strong sun-proof, highly breathable, moisture-absorbing and quick-drying pleated fabric and a preparation method thereof. Through process and component design, a green, flame-retardant, antibacterial and antistatic strong sun-proof, highly breathable, moisture-absorbing and quick-drying pleated fabric is prepared.

[0021] In order to improve the mechanical strength and antistatic property of the dull or semi-dull polyester fiber, carboxylated carbon nanotubes are blended with the dull or semi-dull PET chips to prepare the dull or semi-dull polyester fiber by melt spinning; in order to improve the ultraviolet resistance and antibacterial property of the polyester fiber, carboxylated carbon nanotubes are used as a substrate to prepare nano-zinc oxide composite carboxylated carbon nanotubes as composite nanoparticles by a solution method; in order to improve the uniformity of the dispersion of the composite nanoparticles in the polyester fiber, the composite nanoparticles are first subjected to acyl chloride treatment, and then grafted with hyperbranched polyamide to obtain multi-amino modified composite carboxylated carbon nanotubes; in order to further improve the flame retardance of the polyester fiber, the multi-amino modified composite carboxylated carbon nanotubes are grafted with epoxy POSS containing DOPO to obtain modified carboxylated carbon nanotubes; The epoxy POSS containing DOPO is first prepared into multi-epoxy POSS using gamma-(2,3-epoxypropoxy) propyl trimethoxysilane as a raw material, and then grafted with DOPO to obtain POSS containing both DOPO and epoxy groups; the POSS is grafted onto the multi-amino modified composite carboxylated carbon nanotubes through epoxy-amino reaction, and high-efficiency halogen-free flame retardance is realized through the triple synergy of phosphorus-nitrogen-silicon, and meanwhile the multi-active sites on the modified carboxylated carbon nanotubes are modified to improve the compatibility with the polyester fiber base material, so as to achieve the effect of persistent flame retardance and antibacterial property.

[0022] The modified polyester fiber is used as a raw material to weave a double-sided knitted base fabric by a double-sided knitting machine; the inner layer of the double-sided knitted base fabric is knitted by the modified polyester fiber; the surface layer of the double-sided knitted base fabric is formed by the interweaving of the modified polyester fiber or the polyamide fiber; in order to improve the dye uptake of the base fabric, the base fabric is subjected to two-dip-two-pad treatment with dialdehyde carboxymethyl chitosan solution, pre-drying, curing, and then dyeing treatment with dyes, so as to realize dyeing deepening and improve dyeing fastness; the carboxymethyl chitosan is a water-soluble chitosan derivative, and the dialdehyde carboxymethyl chitosan is obtained by oxidizing carboxymethyl chitosan with sodium periodate.

[0023] In order to further improve the antibacterial property, flame retardance, ultraviolet resistance and moisture permeability of the fabric, and to perform fixing treatment on the pretreated base fabric after dyeing, a finishing agent is prepared from gelatin, polyether epoxy co-modified silicone oil emulsion, dialdehyde carboxymethyl chitosan, modified carboxylated carbon nanotubes and deionized water, and the pretreated base fabric is treated; by controlling the mass ratio of gelatin, polyether epoxy co-modified silicone oil emulsion, dialdehyde carboxymethyl chitosan and modified carboxylated carbon nanotubes, a complex crosslinking network is constructed, and the modified carbon nanotubes are beneficial to the improvement of air permeability and moisture absorption and quick drying through the construction of multi-level pores; the introduction of the polyether epoxy co-modified silicone oil emulsion keeps the fabric soft and comfortable, so as to effectively balance the demand for protection (flame retardance, antibacterial property, ultraviolet resistance, antistatic property, etc.) and comfort.

[0024] The wrinkling treatment makes the fabric have wrinkled corners, which can reflect more ultraviolet rays, further improving the fabric's own UV protection, thereby achieving a strong sun protection effect. At the same time, the wrinkling treatment gives the fabric an elegant luster and improves the fabric's aesthetics. DETAILED DESCRIPTION

[0025] The following will provide a clear and complete description of the technical solutions of the present invention in conjunction with the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of them. All other embodiments obtained by ordinary technicians in this field based on the embodiments of the present invention without making any creative efforts shall fall within the scope of protection of the present invention.

[0026] It should be noted that if the embodiments of the present invention involve directional indications such as up, down, left, right, front, and back, such directional indications are only used to explain a specific posture, such as the relative position relationship between components, the movement status, etc. If the specific posture changes, the directional indication will also change accordingly. In addition, the technical solutions between the various embodiments may be combined with each other, but they must be based on the premise that they can be implemented by ordinary technicians in this field. If the combination of technical solutions is mutually inconsistent or cannot be implemented, it should be deemed that such combination of technical solutions does not exist and is not within the scope of protection claimed by the present invention.

[0027] The technical solutions of the present invention are further described in detail below with reference to specific embodiments. It should be understood that the following embodiments are merely used to explain the present invention and are not intended to limit the present invention.

[0028] Example 1: A method for preparing a highly sun-proof, highly breathable, moisture-absorbing, and quick-drying wrinkled fabric, comprising the following steps: S1: drying, blending, melt-spinning, cooling, and winding the modified carboxylated carbon nanotubes, antioxidant, and PET chips to obtain modified polyester fibers; In the preparation of the modified polyester fiber, the mass ratio of the antioxidant, the modified carboxylated carbon nanotubes, and the PET chips is 0.1:1:99; the PET chips are semi-matt PET chips; The working conditions of melt spinning were as follows: screw zone temperatures were 250°C, 270°C, and 280°C, respectively; spinning temperature was 280°C; draft ratio was 4; winding speed was 600 m / min; The preparation of modified carboxylated carbon nanotubes comprises the following steps: (1) 0.5 g zinc acetate dihydrate and 30 mL methanol were mixed, 0.2 g carboxylated carbon nanotubes and 0.1 g polyvinyl pyrrolidone were added, ultrasonicated for 8 min, heated to 58 °C, 0.2 g potassium hydroxide and 27 mL methanol were added, stirred for 1 h, transferred to a reactor, kept at 178 °C for 12 h, filtered, washed and dried to obtain composite carboxylated carbon nanotubes; (2) Under nitrogen atmosphere, 1 g of composite carboxylated carbon nanotubes, 2 mL of thionyl chloride, and 20 mL of N,N-dimethylformamide were mixed, stirred at 68 ° C for 24 h, decompressed, dried, transferred to 30 mL of N,N-dimethylformamide, heated to 58 ° C and ultrasonically dispersed for 30 min, and a mixed solution of 30 mg of pyridine, 10 mL of N,N-dimethylformamide, and 0.5 g of hyperbranched polyamide was added, stirred at 18 ° C for 24 h, filtered, washed until neutral, dried, and ground to obtain polyamino-modified composite carboxylated carbon nanotubes; (3) 1.5 g of polyamino-modified composite carboxylated carbon nanotubes, 1.2 g of epoxy POSS containing DOPO, 80 mg of triethanolamine, and 5 mL of N,N-dimethylformamide were mixed, ultrasonically stirred for 10 min, kept at 60 °C for 5 h, washed, and dried to obtain modified carboxylated carbon nanotubes; The preparation of epoxy POSS containing DOPO includes the following steps: 1) Mix 1 mmol of tetramethylammonium hydroxide pentahydrate, 5 mL of isopropanol, and 90 mmol of deionized water, add a mixture of 30 mmol of γ-(2,3-epoxypropoxy)propyltrimethoxysilane and 7 mL of isopropanol, stir at 28°C for 6 h, rotary evaporate, add 40 mL of toluene, and heat to 88°C for 4 h to obtain polyepoxy POSS; 2) Mix 50 mmol of polyepoxy POSS, 200 mmol of DOPO, 5 mmol of triphenylphosphine, and 50 mL of toluene, heat to 118°C, and maintain for 130 min. Distill under reduced pressure and dry to obtain epoxy POSS containing DOPO. S2: using modified polyester fiber as raw material, weaving a double-sided knitted base fabric on a double-sided knitting machine; the inner layer of the double-sided knitted base fabric is woven from the modified polyester fiber; the surface layer of the double-sided knitted base fabric is formed by interweaving modified polyester fiber and nylon fiber; The mass ratio of nylon fiber and modified polyester fiber in the surface layer is 4:6; the weight of the double-sided knitted base fabric is 110g / m 2 ; S3: firstly, the double-sided knitted base fabric is subjected to a double-dipping and double-padding treatment with a dialdehyde carboxymethyl chitosan solution, pre-baked and baked, and then subjected to an impregnation dyeing treatment with a dye, soaped, washed, and dried to obtain a pretreated base fabric; The preparation of the dialdehyde carboxymethyl chitosan solution comprises the following steps: mixing acetic acid solution with a mass concentration of 2% with dialdehyde carboxymethyl chitosan to prepare a dialdehyde carboxymethyl chitosan solution with a mass concentration of 1%; S4: preparing a finishing solution using gelatin, polyether epoxy co-modified silicone oil emulsion, dialdehyde carboxymethyl chitosan, modified carboxylated carbon nanotubes, and deionized water; In the finishing solution, the mass ratio of gelatin, polyether epoxy co-modified silicone oil emulsion, dialdehyde carboxymethyl chitosan, and modified carboxylated carbon nanotubes is 3:0.5:12:1, and the amount ratio of dialdehyde carboxymethyl chitosan to deionized water is 1g:50mL; The preparation of dialdehyde carboxymethyl chitosan comprises the following steps: 5 g of carboxymethyl chitosan and 100 mL of deionized water were mixed, 5 g of sodium periodate was added, the pH was adjusted to 3.5, and the mixture was stirred at 38 °C in the dark for 4 h. 1 mL of ethylene glycol was added and the mixture was stirred at 18 °C for 30 min. The mixture was washed three times by centrifugation with tert-butanol, freeze-dried, and ground to obtain dialdehyde carboxymethyl chitosan. The working conditions of the double dip and double pad treatment are: dipping time 60s, padding rate 100%, pre-baking working conditions: keeping at 78℃ for 6min; baking working conditions: keeping at 120℃ for 4min; working conditions of the exhaust dyeing treatment: keeping at 85℃ for 60min, bath ratio 1:50, pH 5.5; S5: placing the pretreated base fabric into the finishing liquid, performing padding treatment, wrinkling treatment, shaping, and drying to obtain a highly sun-proof, highly breathable, moisture-absorbing, and quick-drying wrinkle fabric; The working conditions of padding treatment are: three dips and three rolls, dipping time is 90s, and roll ratio is 80%; the working conditions of wrinkling treatment are: temperature 190℃, pressure 10kg / cm 2 , time 20s, the wrinkling direction is longitudinal.

[0029] Example 2: A method for preparing a highly sun-proof, highly breathable, moisture-absorbing, and quick-drying wrinkled fabric, comprising the following steps: S1: drying, blending, melt-spinning, cooling, and winding the modified carboxylated carbon nanotubes, antioxidant, and PET chips to obtain modified polyester fibers; In the preparation of the modified polyester fiber, the mass ratio of the antioxidant, the modified carboxylated carbon nanotubes, and the PET chips is 0.1:1:99; the PET chips are semi-matt PET chips; The working conditions of melt spinning were as follows: screw zone temperatures were 250°C, 270°C, and 280°C, respectively; spinning temperature was 280°C; draft ratio was 4; winding speed was 600 m / min; The preparation of modified carboxylated carbon nanotubes comprises the following steps: (1) 0.5 g zinc acetate dihydrate, 30 mL methanol were mixed, 0.2 g carboxylated carbon nanotubes, 0.1 g polyvinylpyrrolidone were added, ultrasonic was conducted for 9 min, the temperature was raised to 59℃, 0.2 g potassium hydroxide, 27 mL methanol were added, stirring was conducted for 1.5 h, then it was transferred into a reaction kettle, it was kept at 179℃ for 11.5 h, filtration, washing, drying were conducted, then the composite carboxylated carbon nanotubes were obtained; (2) 1 g composite carboxylated carbon nanotubes, 2 mL thionyl chloride, 20 mL N,N-dimethylformamide were mixed, stirring was conducted at 70℃ for 23 h, it was dried under reduced pressure, then it was transferred into 30 mL N,N-dimethylformamide, the temperature was raised to 60℃, ultrasonic dispersion was conducted for 28 min, 30 mg pyridine, 10 mL N,N-dimethylformamide, 0.5 g hyperbranched polyamide were added, stirring was conducted at 20℃ for 23 h, suction filtration was conducted, washing was conducted until neutral, drying, grinding were conducted, then the multi-amino modified composite carboxylated carbon nanotubes were obtained; (3) 1.5 g multi-amino modified composite carboxylated carbon nanotubes, 1.2 g epoxy POSS containing DOPO, 80 mg triethanolamine, 5 mL N,N-dimethylformamide were mixed, ultrasonic stirring was conducted for 15 min, the temperature was kept at 65℃ for 4 h, washing, drying were conducted, then the modified carboxylated carbon nanotubes were obtained; 1) 1 mmol tetramethylammonium hydroxide pentahydrate, 5 mL isopropanol, 90 mmol deionized water were mixed, 30 mmol γ-(2,3-epoxypropoxy) propyl trimethoxysilane, 7 mL isopropanol were added, stirring was conducted at 30℃ for 6 h, rotary evaporation was conducted, 40 mL toluene was added, the temperature was raised to 89℃ and kept for 3.5 h, then the multi-epoxy POSS was obtained; 2) the preparation of epoxy POSS containing DOPO comprises the following steps: 50 mmol multi-epoxy POSS, 200 mmol DOPO, 5 mmol triphenylphosphine, 50 mL toluene were mixed, the temperature was raised to 119℃ and kept for 120 min, drying was conducted under reduced pressure, then the epoxy POSS containing DOPO was obtained; S2: using modified polyester fiber as raw material, a double-sided knitted base fabric was knitted by a double-sided knitting machine; the inner layer of the double-sided knitted base fabric was knitted by modified polyester fiber; the surface layer of the double-sided knitted base fabric was formed by interweaving modified polyester fiber and nylon fiber; The mass ratio of nylon fiber to modified polyester fiber in the surface layer was 4:6; the gram weight of the double-sided knitted base fabric was 110 g / m 2 ; S3: first, the double-sided knitted base fabric was treated by double-dip-double-nip with dialdehyde carboxymethyl chitosan solution, pre-drying, baking, then it was dyed by dyeing, soaping, washing, drying, then the pretreated base fabric was obtained; The preparation of the dialdehyde carboxymethyl chitosan solution comprises the following steps: mixing acetic acid solution with a mass concentration of 2% with dialdehyde carboxymethyl chitosan to prepare a dialdehyde carboxymethyl chitosan solution with a mass concentration of 1%; S4: preparing a finishing solution using gelatin, polyether epoxy co-modified silicone oil emulsion, dialdehyde carboxymethyl chitosan, modified carboxylated carbon nanotubes, and deionized water; In the finishing solution, the mass ratio of gelatin, polyether epoxy co-modified silicone oil emulsion, dialdehyde carboxymethyl chitosan, and modified carboxylated carbon nanotubes is 3:0.5:12:1, and the amount ratio of dialdehyde carboxymethyl chitosan to deionized water is 1g:45mL; The preparation of dialdehyde carboxymethyl chitosan comprises the following steps: 5 g of carboxymethyl chitosan and 100 mL of deionized water were mixed, 5 g of sodium periodate was added, the pH was adjusted to 3.5, and the mixture was stirred at 40 °C in the dark for 3.5 h. 1 mL of ethylene glycol was added and the mixture was stirred at 20 °C for 25 min. The mixture was washed four times by centrifugation with tert-butanol, freeze-dried, and ground to obtain dialdehyde carboxymethyl chitosan. The working conditions of the double dip and double padding treatment are: dipping time 60s, padding rate 100%, pre-baking working conditions: keeping at 80℃ for 5min; baking working conditions: keeping at 125℃ for 3min; working conditions of the exhaust dyeing treatment: keeping at 88℃ for 55min, bath ratio 1:50, pH 5.5; S5: placing the pretreated base fabric into the finishing liquid, performing padding treatment, wrinkling treatment, shaping, and drying to obtain a highly sun-proof, highly breathable, moisture-absorbing, and quick-drying wrinkle fabric; The working conditions of padding treatment are: three dips and three rolls, dipping time is 95s, and roll ratio is 80%; the working conditions of wrinkling treatment are: temperature 190℃, pressure 10kg / cm 2 , time 20s, the wrinkling direction is longitudinal.

[0030] Example 3: A method for preparing a highly sun-proof, highly breathable, moisture-absorbing, and quick-drying wrinkled fabric, comprising the following steps: S1: drying, blending, melt-spinning, cooling, and winding the modified carboxylated carbon nanotubes, antioxidant, and PET chips to obtain modified polyester fibers; In the preparation of the modified polyester fiber, the mass ratio of the antioxidant, the modified carboxylated carbon nanotubes, and the PET chips is 0.1:1:99; the PET chips are semi-matt PET chips; The working conditions of melt spinning were as follows: screw zone temperatures were 250°C, 270°C, and 280°C, respectively; spinning temperature was 280°C; draft ratio was 4; winding speed was 600 m / min; The preparation of modified carboxylated carbon nanotubes comprises the following steps: (1) 0.5 g zinc acetate dihydrate and 30 mL methanol were mixed, 0.2 g carboxylated carbon nanotubes and 0.1 g polyvinyl pyrrolidone were added, ultrasonicated for 10 min, heated to 60 ° C, 0.2 g potassium hydroxide and 27 mL methanol were added, stirred for 2 h, transferred to a reactor, kept at 180 ° C for 11 h, filtered, washed and dried to obtain composite carboxylated carbon nanotubes; (2) Under nitrogen atmosphere, 1 g of composite carboxylated carbon nanotubes, 2 mL of thionyl chloride, and 20 mL of N,N-dimethylformamide were mixed, stirred at 72 °C for 22 h, decompressed, dried, transferred to 30 mL of N,N-dimethylformamide, heated to 62 °C and ultrasonically dispersed for 25 min, and a mixed solution of 30 mg of pyridine, 10 mL of N,N-dimethylformamide, and 0.5 g of hyperbranched polyamide was added, stirred at 25 °C for 22 h, filtered, washed until neutral, dried, and ground to obtain polyamino-modified composite carboxylated carbon nanotubes; (3) 1.5 g of polyamino-modified composite carboxylated carbon nanotubes, 1.2 g of epoxy POSS containing DOPO, 80 mg of triethanolamine, and 5 mL of N,N-dimethylformamide were mixed, ultrasonically stirred for 20 min, kept at 70 °C for 3 h, washed, and dried to obtain modified carboxylated carbon nanotubes; The preparation of epoxy POSS containing DOPO includes the following steps: 1) Mix 1 mmol of tetramethylammonium hydroxide pentahydrate, 5 mL of isopropanol, and 90 mmol of deionized water, add a mixture of 30 mmol of γ-(2,3-epoxypropoxy)propyltrimethoxysilane and 7 mL of isopropanol, stir at 32°C for 6 h, rotary evaporate, add 40 mL of toluene, and heat to 90°C for 3 h to obtain polyepoxy POSS; 2) Mix 50 mmol of polyepoxy POSS, 200 mmol of DOPO, 5 mmol of triphenylphosphine, and 50 mL of toluene, heat to 120°C, and maintain for 110 min. Distill under reduced pressure and dry to obtain epoxy POSS containing DOPO. S2: using modified polyester fiber as raw material, weaving a double-sided knitted base fabric on a double-sided knitting machine; the inner layer of the double-sided knitted base fabric is woven from the modified polyester fiber; the surface layer of the double-sided knitted base fabric is formed by interweaving modified polyester fiber and nylon fiber; The mass ratio of nylon fiber and modified polyester fiber in the surface layer is 4:6; the weight of the double-sided knitted base fabric is 110g / m 2 ; S3: firstly, the double-sided knitted base fabric is subjected to a double-dipping and double-padding treatment with a dialdehyde carboxymethyl chitosan solution, pre-baked and baked, and then subjected to an impregnation dyeing treatment with a dye, soaped, washed, and dried to obtain a pretreated base fabric; The preparation of the dialdehyde carboxymethyl chitosan solution comprises the following steps: mixing acetic acid solution with a mass concentration of 2% with dialdehyde carboxymethyl chitosan to prepare a dialdehyde carboxymethyl chitosan solution with a mass concentration of 1%; S4: preparing a finishing solution using gelatin, polyether epoxy co-modified silicone oil emulsion, dialdehyde carboxymethyl chitosan, modified carboxylated carbon nanotubes, and deionized water; In the finishing solution, the mass ratio of gelatin, polyether epoxy co-modified silicone oil emulsion, dialdehyde carboxymethyl chitosan, and modified carboxylated carbon nanotubes is 3:0.5:12:1, and the amount ratio of dialdehyde carboxymethyl chitosan to deionized water is 1 g:40 mL; The preparation of dialdehyde carboxymethyl chitosan comprises the following steps: 5 g of carboxymethyl chitosan and 100 mL of deionized water were mixed, 5 g of sodium periodate was added, the pH was adjusted to 3.5, and the mixture was stirred in the dark at 42 °C for 3 h. 1 mL of ethylene glycol was added and the mixture was stirred at 25 °C for 20 min. The mixture was washed with tert-butanol by centrifugation 5 times, freeze-dried, and ground to obtain dialdehyde carboxymethyl chitosan. The working conditions of the double dip and double pad treatment are: dipping time 60s, padding rate 100%, pre-baking working conditions: keeping at 82℃ for 4min; baking working conditions: keeping at 130℃ for 2min, and the working conditions of the exhaust dyeing treatment are: keeping at 90℃ for 50min, bath ratio 1:50, pH 5.5. S5: placing the pretreated base fabric into the finishing liquid, performing padding treatment, wrinkling treatment, shaping, and drying to obtain a highly sun-proof, highly breathable, moisture-absorbing, and quick-drying wrinkle fabric; The working conditions of padding treatment are: three dips and three rolls, dipping time is 100s, and roll ratio is 80%; the working conditions of wrinkling treatment are: temperature 190℃, pressure 10kg / cm 2 , time 20s, the wrinkling direction is longitudinal.

[0031] Comparative Example 1: Taking Example 3 as the control group, the modified carboxylated carbon nanotubes were replaced with composite carboxylated carbon nanotubes, and the other processes were normal.

[0032] Comparative Example 2: Taking Example 3 as the control group, the mass ratio of gelatin, polyether epoxy co-modified silicone oil emulsion, dialdehyde carboxymethyl chitosan, and modified carboxylated carbon nanotubes is 3:0.5:10:1, and other processes are normal.

[0033] In the examples and comparative examples, the polyether epoxy co-modified silicone oil emulsion is a compound of polyether epoxy co-modified silicone oil, emulsifier, and deionized water in a mass ratio of 5:1:10; the emulsifier is a compound of emulsifier OP-10 and APG1214 in a mass ratio of 2:1; the thickness of the inner layer and the surface layer in the examples and comparative examples are both 1 mm.

[0034] Sources of raw materials used (for demonstration purposes only): Polyamide fiber 40D / 24F-FDY (moisture-absorbing and sweat-releasing fiber): Yiwu Huading Polyamide Co., Ltd.; Emulsifier OP-10 (industrial grade): Yitie; APG1214 (99%): Condiss Chemical Industry (Hubei) Co., Ltd.; Antioxidant 3114: Hangzhou Jingyou Chemical Co., Ltd.; Semi-dull PET chip BR8040: SK, Korea; Dye S19049: Shanghai Yuanye Bio-technology Co., Ltd.; Polyether epoxy co-modified silicone oil emulsion ETE301: Shandong Dayi Chemical Co., Ltd.; Carboxylated carbon nanotube C493314, polyvinylpyrrolidone P434439, pyridine P111511, hyperbranched polyamide HyperN103: Wuhan Hyperbranched Resin Technology Co., Ltd.; Triethanolamine T108151, tetramethylammonium hydroxide pentahydrate T105041, gamma-(2,3-epoxypropoxy) propyl trimethoxysilane G134407, DOPO (9,10-dihydro-9-oxa-10-phospha-phenanthrene-10-oxide) D102416, triphenylphosphine T104475, gelatin G108394, carboxymethyl chitosan C304738, ethylene glycol E103319: Aladdin Reagent; Zinc acetate dihydrate, methanol, potassium hydroxide, thionyl chloride, N,N-dimethylformamide, toluene, sodium periodate, acetic acid, isopropanol, tert-butyl alcohol, analytical pure: commercially available.

[0035] Performance test: the fabric prepared in the examples and comparative examples was tested. Flame retardance: the limiting oxygen index was determined according to GB / T 5454-1997; antibacterial property: Staphylococcus aureus was used as the test strain, and the test was carried out according to GB / T 20944.3-2008, the sample was washed for 30 times according to the standard, and then the antibacterial rate was tested; ultraviolet resistance: a 4cm*4cm sample was cut, and the UPF test was carried out according to GB / T 18830-2009; air permeability: the air permeability test was carried out according to GB / T 5453, and the pressure difference was 100Pa; dry rubbing fastness: the test was carried out according to GB / T 3920-2008, and the effect was indicated by grading, and 5 was the best; moisture absorption and quick drying property: the test was carried out according to GB / T 21655.1-2023, and III was the best, and the results are shown in Table 1. Table 1

[0036] The application provides a strong-sunscreen high-air-permeability moisture-absorption and quick-drying wrinkle fabric and a preparation method thereof. Through process and component design, a green, flame-retardant, antibacterial and antistatic strong-sunscreen high-air-permeability moisture-absorption and quick-drying wrinkle fabric is prepared, and / in Table 1 indicates that the test is not carried out.

[0037] Comparing Example 3 with Comparative Example 1, it can be seen that in order to improve the mechanical strength and antistatic properties of matt or semi-matt polyester fibers, carboxylated carbon nanotubes are blended with matt or semi-matt PET chips, and melt spinning is used to prepare matt or semi-matt polyester fibers. In order to improve the UV resistance and antibacterial properties of polyester fibers, carboxylated carbon nanotubes are used as a matrix and a solution method is adopted to prepare nano-zinc oxide composite carboxylated carbon nanotubes as composite nanoparticles. In order to improve the uniformity of dispersion of the composite nanoparticles in the polyester fibers, the composite nanoparticles are first chlorinated and then grafted with hyperbranched polyamide to obtain polyamino-modified composite carboxylated carbon nanotubes. In order to further improve the flame retardancy of the polyester fibers, polyamino-modified composite carboxylated carbon nanotubes are grafted with epoxy POSS containing DOPO to obtain modified carboxylated carbon nanotubes. The epoxy POSS containing DOPO was first prepared from γ-(2,3-epoxypropoxy)propyltrimethoxysilane as raw material to prepare polyepoxy POSS, and then grafted with DOPO to obtain POSS containing both DOPO and epoxy groups. It was grafted onto polyamino-modified composite carboxylated carbon nanotubes through epoxy-amino reaction. Through the triple synergy of phosphorus-nitrogen-silicon, high-efficiency halogen-free flame retardancy was achieved. At the same time, the multiple active sites on the carboxylated carbon nanotubes were modified to improve the compatibility with the polyester fiber base material, thereby achieving a long-lasting flame retardant and antibacterial effect.

[0038] The double-sided knitted base fabric is woven using modified polyester fiber as raw material on a double-sided knitting machine; the inner layer of the double-sided knitted base fabric is woven from modified polyester fiber; the surface layer of the double-sided knitted base fabric is formed by interweaving modified polyester fiber or nylon fiber. In order to improve the dye uptake rate of the base fabric, the base fabric is subjected to a double-immersion and double-rolling treatment with a dialdehyde carboxymethyl chitosan solution, pre-baked and baked, and then impregnated with a dye, thereby achieving dye deepening and improving color fastness. Carboxymethyl chitosan is a water-soluble chitosan derivative, wherein the dialdehyde carboxymethyl chitosan is obtained by oxidizing carboxymethyl chitosan with sodium periodate.

[0039] By comparing Example 3 with Comparative Example 2, it can be seen that in order to further improve the antibacterial, flame retardant, UV resistance and moisture absorption and breathability of the fabric, the pretreated base fabric after dyeing is subjected to a color fixation treatment, and a finishing agent is prepared with gelatin, polyether epoxy co-modified silicone oil emulsion, dialdehyde carboxymethyl chitosan, modified carboxylated carbon nanotubes, and deionized water. The pretreated base fabric is treated, and a complex cross-linked network is constructed by controlling the mass ratio of gelatin, polyether epoxy co-modified silicone oil emulsion, dialdehyde carboxymethyl chitosan, and modified carboxylated carbon nanotubes. At the same time, the modified carbon nanotubes are constructed through multi-level pores, which is beneficial to the improvement of air permeability and moisture absorption and quick-drying properties. The introduction of polyether epoxy co-modified silicone oil emulsion maintains the soft touch of the fabric, thereby effectively balancing the requirements of protection (flame retardancy, antibacterial, UV resistance, antistatic properties, etc.) and comfort.

[0040] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent structural transformations made using the present invention specification under the inventive concept of the present invention, or any direct / indirect application in other related technical fields, are included in the patent protection scope of the present invention.

Claims

1. A method for preparing a strong sun-proof, highly breathable, moisture-absorbing and quick-drying wrinkled fabric, characterized in that: The following steps are involved: S1: drying, blending, melt-spinning, cooling, and winding the modified carboxylated carbon nanotubes, antioxidant, and PET chips to obtain modified polyester fibers; S2: using modified polyester fiber as raw material, weaving a double-sided knitted base fabric on a double-sided knitting machine; the inner layer of the double-sided knitted base fabric is woven from modified polyester fiber; the surface layer of the double-sided knitted base fabric is formed by interweaving modified polyester fiber or nylon fiber; S3: firstly, the double-sided knitted base fabric is subjected to a double-dipping and double-padding treatment with a dialdehyde carboxymethyl chitosan solution, pre-baked and baked, and then subjected to an impregnation dyeing treatment with a dye, soaped, washed, and dried to obtain a pretreated base fabric; S4: preparing a finishing solution using gelatin, polyether epoxy co-modified silicone oil emulsion, dialdehyde carboxymethyl chitosan, modified carboxylated carbon nanotubes, and deionized water; S5: placing the pretreated base fabric into the finishing liquid, performing padding treatment, wrinkle treatment, shaping, and drying to obtain a highly sun-proof, highly breathable, moisture-absorbing, and quick-drying wrinkle fabric.

2. The method for preparing a strong sun-proof, highly breathable, moisture-absorbing and quick-drying pleated fabric according to claim 1, characterized in that: The PET slice is one of semi-matt PET slice and fully matt PET slice.

3. The method for preparing a strong sun-proof, highly breathable, moisture-absorbing and quick-drying pleated fabric according to claim 1, characterized in that: In the preparation of modified polyester fibers, the mass ratio of antioxidant, modified carboxylated carbon nanotubes, and PET chips is 0.1:1:

99.

4. The method for preparing a strong sun-proof, highly breathable, moisture-absorbing and quick-drying pleated fabric according to claim 1, characterized in that: The weight of the double-sided knitted base fabric is 108-112g / m 2 .

5. The method for preparing a strong sun-proof, highly breathable, moisture-absorbing and quick-drying pleated fabric according to claim 1, characterized in that: In step S4, the working conditions for the two-dip and two-pad treatment are: dipping time 60 seconds, roll-off rate 100%; the working conditions for the pre-drying are: heat preservation at 78-82°C for 4-6 minutes; the working conditions for the baking are: heat preservation at 120-130°C for 2-4 minutes; the working conditions for the dyeing treatment are: heat preservation at 85-90°C for 50-60 minutes, bath ratio 1: (40-55), pH 5.5; in step S6, the working conditions for the padding treatment are: three-dip and three-pad treatment, dipping time 90-100 seconds, roll-off rate 80%; the working conditions for the wrinkling treatment are: temperature 180-200°C, pressure 5-15 kg / cm 2 , time 10-30s, the wrinkling direction is one of the longitudinal and transverse directions.

6. The method for preparing a strong sun-proof, highly breathable, moisture-absorbing and quick-drying pleated fabric according to claim 1, characterized in that: In the finishing liquid, the mass ratio of gelatin, polyether epoxy co-modified silicone oil emulsion, dialdehyde carboxymethyl chitosan, and modified carboxylated carbon nanotubes is 3:0.5:12:1, and the dosage ratio of dialdehyde carboxymethyl chitosan to deionized water is 1 g: (40-50) mL.

7. The method for preparing a strong sun-proof, highly breathable, moisture-absorbing and quick-drying pleated fabric according to claim 1, characterized in that: The preparation of dialdehyde carboxymethyl chitosan comprises the following steps: Mix carboxymethyl chitosan and deionized water, add sodium periodate, adjust the pH to 3.5, stir at 38-42°C in the dark for 3-4 hours, add ethylene glycol, stir at 18-25°C for 20-30 minutes, wash with tert-butanol by centrifugation 3-5 times, freeze-dry and grind to obtain dialdehyde carboxymethyl chitosan.

8. The method for preparing a strong sun-proof, highly breathable, moisture-absorbing and quick-drying pleated fabric according to claim 1, characterized in that: The preparation of modified carboxylated carbon nanotubes comprises the following steps: (1) Zinc acetate dihydrate and methanol were mixed, carboxylated carbon nanotubes and polyvinyl pyrrolidone were added, ultrasonicated for 8-10 minutes, heated to 58-60°C, a mixture of potassium hydroxide and methanol was added, stirred for 1-2 hours, transferred to a reactor, kept warm at 178-180°C for 11-12 hours, filtered, washed, and dried to obtain composite carboxylated carbon nanotubes; (2) Under a nitrogen atmosphere, the composite carboxylated carbon nanotubes, thionyl chloride, and N,N-dimethylformamide were mixed, stirred at 68-72°C for 22-24 hours, decompressed, dried, transferred to N,N-dimethylformamide, heated to 58-62°C and ultrasonically dispersed for 25-30 minutes, and a mixed solution of pyridine, N,N-dimethylformamide, and hyperbranched polyamide was added, stirred at 18-25°C for 22-24 hours, filtered, washed until neutral, dried, and ground to obtain polyamino-modified composite carboxylated carbon nanotubes; (3) The polyamino-modified composite carboxylated carbon nanotubes, epoxy POSS containing DOPO, triethanolamine, and N,N-dimethylformamide were mixed, ultrasonically stirred for 10-20 minutes, kept at 60-70°C for 3-5 hours, washed, and dried to obtain modified carboxylated carbon nanotubes.

9. The method for preparing a strong sun-proof, highly breathable, moisture-absorbing and quick-drying pleated fabric according to claim 8, characterized in that: The preparation of epoxy POSS containing DOPO includes the following steps: 1) Tetramethylammonium hydroxide pentahydrate, isopropyl alcohol, and deionized water were mixed, and a mixture of γ-(2,3-epoxypropoxy)propyltrimethoxysilane and isopropyl alcohol was added. The mixture was stirred at 28-32°C for 6 hours, and then rotary evaporated. Toluene was added and the temperature was raised to 88-90°C and kept warm for 3-4 hours to obtain polyepoxy POSS. 2) Mix polyepoxy POSS, DOPO, triphenylphosphine, and toluene, heat to 118-120°C and maintain for 110-130 minutes, and distill under reduced pressure and dry to obtain epoxy POSS containing DOPO.

10. A strong sun-proof, highly breathable, moisture-absorbing and quick-drying wrinkled fabric, characterized in that: The compound is prepared by the preparation method according to any one of claims 1 to 9.

Images