Production method of ultraviolet-proof moisture-absorbing sweat-guiding clothing fabric

Abstract

The invention relates to the technical field of functional fabrics, in particular to a production method of an anti-ultraviolet moisture-absorbing sweat-guiding clothing fabric, which comprises the following steps: firstly, carrying out silane coupling agent modification treatment on nanoscale titanium dioxide; then carrying out melt blending and granulation on the modified titanium dioxide and a polyester base material to prepare functional master batches; then, through melt spinning, cross-shaped spinneret orifices are used for preparing cross-shaped cross-section superfine denier fibers containing titanium dioxide; finally, spandex is used as a core, the fiber is used as an outer layer, covering yarn with the spandex content being 6-10% is prepared through ring spinning, and then the finished fabric is obtained through weaving. Functional components are internally fused in the fibers, and a unique cross-section fiber and spandex core-spun yarn structure is combined, so that efficient moisture absorption and sweat guiding, lasting ultraviolet-proof and light-transmitting-resistant functions of the fabric are synergistically realized, and meanwhile, the fabric has excellent elasticity, skin-friendly property and durability, and is particularly suitable for outdoor sports and high-frequency wearing clothes.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of functional fabric, in particular to a production method of an anti-ultraviolet moisture-absorbing and sweat-conducting clothing fabric. BACKGROUND

[0002] In the technical field of clothing fabric, with the popularization of outdoor leisure, sports fitness and other activities, the market demand for functional fabric is increasing, especially the fabric with the functions of moisture absorption, sweat conduction, anti-ultraviolet and non-transparency, which becomes the core selection direction of outdoor clothing, sports clothing, summer sun protection clothing and outdoor work clothes.

[0003] In the prior art, moisture-absorbing and sweat-conducting fabric is mostly achieved by changing the surface morphology of fibers (such as increasing micropores) or adjusting the fabric structure, but the traditional structure design has limited contact area with sweat, resulting in slow moisture absorption speed, low sweat conduction efficiency and difficulty in quickly solving the feeling of stuffiness of the wearer; the anti-ultraviolet and non-transparency fabric mostly uses surface coating technology to attach functional components to the surface layer of the fabric, but the coating is easy to fall off in the process of daily washing and rubbing, resulting in rapid decay of the function with the increase of the use frequency, which cannot meet the needs of long-term outdoor or high-frequency use scenarios.

[0004] At the same time, it is difficult to realize the synergistic and durable functions of "moisture absorption and sweat conduction" and "anti-ultraviolet and non-transparency" in the prior art, most of the fabrics only focus on single function, or although multiple functions are considered, the core performance stability is insufficient, which cannot meet the dual needs of users for comfortable experience and durable function.

[0005] Therefore, a production method of an anti-ultraviolet moisture-absorbing and sweat-conducting clothing fabric is proposed. SUMMARY

[0006] The purpose of the present application is to provide a production method of an anti-ultraviolet moisture-absorbing and sweat-conducting clothing fabric to solve the problems in the background art.

[0007] In order to solve the above technical problems, the present application provides the following technical scheme: a production method of an anti-ultraviolet moisture-absorbing and sweat-conducting clothing fabric, comprising the following steps: Step 1: titanium dioxide modification treatment, dispersing nano-sized titanium dioxide particles in an ethanol-water mixed solvent, ultrasonic dispersion, then heating and adding a silane coupling agent, stirring and reacting, and then centrifugal separation, water washing and drying after cooling to obtain modified titanium dioxide; Step 2: functional master batch preparation, taking polyester as a base material, adding the modified titanium dioxide obtained in step 1, melt blending through a double screw extruder, extruding and granulating to obtain a functional polyester master batch; Step 3: Cross-shaped fiber melt spinning, the functional polyester master batch obtained in step 2 is put into a spinning device, the spinning temperature and speed are controlled, melt spinning is carried out using an asymmetric hyperbolic cross-shaped spinneret, and after cooling, oiling and winding, the cross-section ultrafine denier fiber containing titanium dioxide is prepared; Step 4: Core-spun yarn weaving, using spandex yarn as the core layer, and the cross-section ultrafine denier fiber prepared in step 3 as the outer layer wrapped yarn, the core-spun yarn is prepared by ring spinning, and then the core-spun yarn is woven into cloth by weaving or knitting process.

[0008] According to the above technical scheme, the average particle size of the nano-sized titanium dioxide particles in step 1 is 0.3-0.5 μm.

[0009] According to the above technical scheme, the ratio of the ethanol-water mixed solvent in step 1 is 1:1, and the ultrasonic dispersion time is 15-20 min.

[0010] According to the above technical scheme, in step 1, the temperature is raised to 60-80℃, the silane coupling agent is KH550, the amount is 3-5% of the mass of titanium dioxide, and the stirring reaction time is 40-60 min.

[0011] According to the above technical scheme, in step 1, the vacuum drying temperature is 80-100℃, and the time is 2-3h.

[0012] According to the above technical scheme, in step 2, the amount of the modified titanium dioxide added is 5-8% of the mass of the base material.

[0013] According to the above technical scheme, in step 2, the temperature of the twin-screw extruder is 260-280℃, the rotation speed is 300-350 r / min, and the melt blending time is 10-15 min.

[0014] According to the above technical scheme, in step 3, the spinning temperature is 270-290℃, and the speed is 2800-3200 m / min.

[0015] According to the above technical scheme, in step 4, the spandex content of the core-spun yarn is 6-10%.

[0016] Compared with the prior art, the beneficial effects achieved by the present application are: (1) High moisture absorption and sweat guiding efficiency: the cross-section fiber increases the contact area of sweat, and the elastic fit provided by the spandex core layer ensures that the sweat is quickly absorbed and guided out, effectively reducing the stuffy feeling of the wearer.

[0017] (2) The anti-ultraviolet function is durable: the titanium dioxide is fused in the fiber after modification, instead of surface coating, and is protected by the outer layer of the core yarn, effectively preventing the loss of functional components due to washing and friction, so that the anti-ultraviolet and non-transmittance functions have durable durability (UPF≥45+, transmittance≤10%).

[0018] (3) Multifunctional synergy and excellent comprehensive performance: the fabric produced by the application has the functions of efficient moisture absorption and sweat conduction, durable anti-ultraviolet and elastic fitting, and has strong durability, good skin friendliness, good air permeability and excellent color fastness, which meets the dual needs of comfort experience and functional durability in outdoor sports and high-frequency wearing scenes.

[0019] (4) Strong process innovation: through the step-by-step process design of "titanium dioxide modification treatment-function master batch preparation-cross-shaped fiber melt spinning-core yarn weaving", the synergistic innovation of fiber structure, functional components and yarn structure is realized, and the problem that function and comfort cannot be considered in traditional technology is solved. BRIEF DESCRIPTION OF DRAWINGS

[0020] The accompanying drawings are used to provide a further understanding of the present application, and constitute a part of the specification, together with the embodiments of the present application, to explain the present application, and do not constitute a limitation on the present application. In the drawings: Fig. 1 is a cross-sectional view of the modified titanium dioxide of the present application; Fig. 2 is a cross-sectional view of the cross-shaped fiber melt spinning of the present application. DETAILED DESCRIPTION

[0021] The technical solutions in the embodiments of the present application will be described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, not all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor are within the scope of protection of the present application.

[0022] Please refer to Figs. 1-2 The present application provides a technical solution: a production method of an anti-ultraviolet moisture absorption and sweat conduction clothing fabric, comprising the following steps: Step 1: titanium dioxide modification treatment, dispersing 1:1 of nano-sized titanium dioxide particles with an average particle size of 0.3-0.5 μm in an ethanol-water mixed solvent, ultrasonic dispersion for 15-20 min, then heating to 60-80℃ and adding silane coupling agent KH550, the amount is 3-5% of the mass of titanium dioxide, stirring for 40-60 min, cooling, centrifugal separation, washing 3-4 times, vacuum drying at 80-100℃ for 2-3h, to obtain modified titanium dioxide; Step 2: Functional master batch preparation, taking polyester as the base material, adding 5-8% of the modified titanium dioxide obtained in step 1 by mass of the base material, melt blending through a twin-screw extruder, the temperature of the twin-screw extruder being 260-280℃, the rotation speed being 300-350r / min, the melt blending time being 10-15min, extruding and granulating to obtain functional polyester master batch; Step 3: Cross-shaped fiber melt spinning, putting the functional polyester master batch obtained in step 2 into a spinning device, controlling the spinning temperature to be 270-290℃ and the speed to be 2800-3200m / min, using an asymmetric hyperbolic cross-shaped spinneret for melt spinning, cooling, oiling and winding to obtain cross-section ultrafine denier fiber containing titanium dioxide; Step 4: Core-spun yarn weaving, taking nylon filament as the core layer and the cross-section ultrafine denier fiber obtained in step 3 as the outer layer wrapping yarn, spinning the core-spun yarn through a ring spinning machine, the nylon content of the core-spun yarn being 6-10%, and then weaving the core-spun yarn into cloth through a weaving or knitting process.

[0023] Example 1 Step 1: Modification of titanium dioxide Take nano-sized titanium dioxide particles with an average particle size of 0.3μm, disperse them in an ethanol-water mixed solvent (1:1) and ultrasonically disperse for 15min; heat to 60℃, add 3% of KH550 silane coupling agent by mass of the titanium dioxide, stir for 40min; after cooling, centrifugal separation, water washing for 3 times and vacuum drying at 80℃ for 2h, modified titanium dioxide is obtained.

[0024] Step 2: Functional master batch preparation Take conventional polyester as the base material, add 5% of the modified titanium dioxide by mass of the base material into a twin-screw extruder; control the temperature to be 260℃ and the rotation speed to be 300r / min, melt blend for 10min and then extrude and granulate to obtain functional polyester master batch.

[0025] Step 3: Cross-shaped fiber melt spinning Put the functional polyester master batch into a spinning device, control the spinning temperature to be 270℃ and the spinning speed to be 2800m / min; select an asymmetric hyperbolic cross-shaped spinneret, melt spin, cool, oil, wind to obtain cross-section ultrafine denier fiber containing titanium dioxide.

[0026] Step 4: Core-spun yarn weaving Take 40D nylon as the core layer, take the fiber obtained in step 3 as the outer layer wrapping yarn (32S), spin the core-spun yarn (nylon content 8%) through a ring spinning machine; then weave the core-spun yarn into cloth through a weaving process (120x80 roots / inch).

[0027] The obtained fabric test results: moisture absorption and sweat conduction rate 0.8 g / h (GB / T 21655.1), anti-ultraviolet UPF 50+ (GB / T 18830), light transmittance 8%, elongation at break 25%. Applied to a lady's sunscreen shirt, UPF 48+ after 50 times of washing, light transmittance 9%.

[0028] Example 2 Step 1: Modification treatment of titanium dioxide Parameters: titanium dioxide particle size 0.4 μm, ultrasonic 18 min, 70 ℃ plus 4% KH550 reaction 50 min, washing and drying.

[0029] Step 2: Preparation of functional master batch Add 6.5% modified titanium dioxide, extrusion temperature 270 ℃, speed 320 r / min, time 12 min, and prepare functional polyester master batch.

[0030] Step 3: Cross-shaped fiber melt spinning Spinning temperature 280 ℃, speed 3000 m / min, spinneret hole parameters e=32, f=45.

[0031] Step 4: Core-spun yarn weaving Take 30D spandex as the core, and blend the cross-sectional fiber and conventional polyester at 7:3 as the outer layer (40S), ring spinning (spandex 6%), and knit into cloth.

[0032] Effect: moisture absorption and sweat conduction rate 0.95 g / h, UPF 45+, light transmittance 10%, skin-friendly and non-irritating. Applied to children's sports T-shirts.

[0033] Example 3 Step 1: Modification treatment of titanium dioxide Parameters: titanium dioxide particle size 0.5 μm, ultrasonic 20 min, 80 ℃ plus 5% KH550 reaction 60 min, washing and drying.

[0034] Step 2: Preparation of functional master batch Add 8% modified titanium dioxide, extrusion temperature 280 ℃, speed 350 r / min, time 15 min.

[0035] Step 3: Cross-shaped fiber melt spinning Spinning temperature 290 ℃, speed 3200 m / min, spinneret hole parameters e=49, f=81.

[0036] Step 4: Core-spun yarn weaving Take 50D high-elastic spandex as the core, and the cross-sectional fiber as the outer layer (28S), ring spinning (spandex 10%), heavy-duty weaving (140x100 roots / inch) into cloth.

[0037] Effect: moisture absorption and sweat guide rate 0.75g / h, UPF 55+, light transmittance 6%, strong durability. Applied to outdoor work jacket, UPF 53+ and light transmittance 7% after 50 times of washing.

[0038] Finally, it should be noted that: the above only for the preferred embodiments of the present application, and not for the purpose of limiting the present application, although the foregoing embodiments of the present invention are described in detail, for those skilled in the art, it still can be modified, or part of the technical features of the equivalent replacement of the technical solutions described in the foregoing embodiments. Any modification, equivalent replacement, improvement, etc. within the spirit and principles of the present application shall be included within the scope of the present application.

Claims

1. A method of producing an ultraviolet protective moisture-wicking apparel fabric, characterized by, Includes the following steps: Step 1: Titanium dioxide modification treatment. Nano-sized titanium dioxide particles are dispersed in an ethanol-water mixed solvent, ultrasonically dispersed, then heated and a silane coupling agent is added. The mixture is stirred and reacted, then cooled, centrifuged, washed with water, and dried to obtain modified titanium dioxide. Step 2: Preparation of functional masterbatch: Using polyester as the base material, the modified titanium dioxide obtained in Step 1 is added, and the mixture is melt-blended and extruded into granules using a twin-screw extruder to obtain functional polyester masterbatch. Step 3: Melt spinning of cross-shaped fibers. The functional polyester masterbatch obtained in step 2 is fed into the spinning equipment. The spinning temperature and speed are controlled. Melt spinning is performed using an asymmetric hyperbolic cross-shaped spinneret. After cooling, oiling, and winding, ultrafine denier fibers with a cross-shaped cross section containing titanium dioxide are obtained. Step 4: Core-spun yarn weaving. Using spandex yarn as the core layer and the cross-section ultrafine denier fiber obtained in Step 3 as the outer wrapping yarn, the core-spun yarn is spun by ring spinning. Then, the core-spun yarn is woven into fabric by machine weaving or knitting.

2. The method for producing a UV-resistant, moisture-wicking clothing fabric according to claim 1, characterized in that: The average particle size of the nano-sized titanium dioxide particles mentioned in step 1 is 0.3 to 0.5 μm.

3. The method for producing a UV-resistant, moisture-wicking clothing fabric according to claim 1, characterized in that: The ratio of the ethanol-water mixed solvent in step 1 is 1:1, and the ultrasonic dispersion time is 15-20 min.

4. The method for producing a UV-resistant, moisture-wicking clothing fabric according to claim 1, characterized in that: In step 1, the temperature is raised to 60-80°C, the silane coupling agent is KH550, the amount is 3-5% of the mass of titanium dioxide, and the stirring reaction time is 40-60 min.

5. The method for producing a UV-resistant, moisture-wicking clothing fabric according to claim 1, characterized in that: In step 1, the vacuum drying temperature is 80-100℃ and the time is 2-3 hours.

6. The method for producing a UV-resistant, moisture-wicking clothing fabric according to claim 1, characterized in that: The amount of modified titanium dioxide added in step 2 is 5-8% of the mass of the substrate.

7. The method for producing a UV-resistant, moisture-wicking clothing fabric according to claim 1, characterized in that: In step 2, the temperature of the twin-screw extruder is 260–280℃, the rotation speed is 300–350 r / min, and the melt blending time is 10–15 min.

8. The method for producing a UV-resistant, moisture-wicking clothing fabric according to claim 1, characterized in that: In step 3, the spinning temperature is 270–290℃ and the speed is 2800–3200 m / min.

9. A method for producing a UV-resistant, moisture-wicking clothing fabric according to claim 1, characterized in that: The spandex content of the core-spun yarn mentioned in step 4 is 6-10%.

Images