Preparation method of high-breathability anti-ultraviolet fabric and fabric

Abstract

The invention discloses a preparation method of a high-breathability anti-ultraviolet fabric and the fabric, relates to the technical field of functional fabrics, and provides the preparation method of the high-breathability anti-ultraviolet fabric which is high in breathability, light, thin and comfortable and has a high ultraviolet protection coefficient and the fabric. The invention discloses a preparation method of a high-breathability anti-ultraviolet fabric. The preparation method comprises the following steps: S1, weaving; alkali-soluble yarn is mixed into the yarn according to the proportion of 15%-50%, and after the yarn is subjected to warping, sizing and re-beaming, the yarn is woven through a weaving machine; s2, desizing; adding sodium carbonate, a scouring agent and a chelating agent into a desizing machine for treatment to remove an oiling agent in the fabric; s3, yarn dissolving treatment; a NaOH solution is added into the dissolving solution according to the proportion of 10 g / L, and alkali-soluble yarn in the fabric is dissolved away; s4, carrying out anti-ultraviolet treatment; soaking the fabric in an acidic anti-ultraviolet agent solution for dyeing, and then carrying out color fixation and cleaning treatment; s5, shaping and finishing.

Description

Technical Field

[0001] The invention relates to the technical field of functional fabrics, and in particular to a preparation method of a highly breathable and UV-resistant fabric and the fabric. Background Art

[0002] Strong ultraviolet rays in sunlight are harmful to the human body, especially in summer, excessive sun exposure can cause photoaging, causing dark spots, freckles, etc. When people are outdoors, they usually need to wear clothes with sun protection function. Most sun protection fabrics in the prior art are made by impregnating high-density fabrics with anti-ultraviolet agents, and then calendering at high temperature in the post-finishing process to reduce the porosity between fibers to achieve the anti-ultraviolet effect.

[0003] However, the sun-protection fabrics made with this technology have poor air permeability. Especially in hot spring and summer weather, wearing clothes made of this fabric for a long time will cause excessive sweating and cause stuffiness and discomfort, affecting wearing comfort.

[0004] Therefore, how to improve the production process of anti-UV functional fabrics so that the fabrics can not only achieve sun protection effects, but also have the characteristics of lightweight and high breathability, and improve wearing comfort, has become a technical problem that needs to be solved urgently. Summary of the invention

[0005] In view of the above technical problems, the present invention provides a method for preparing a highly breathable, anti-ultraviolet fabric which is light, comfortable and has a high ultraviolet protection factor.

[0006] The technical solution of the present invention is: A method for preparing a highly breathable and UV-resistant fabric comprises the following steps: S1: Weaving: Alkaline soluble yarn is mixed into the yarn at a ratio of 15-50%, the yarn is warped, sizing, and beamed, and then the yarn is weaved on a loom; S2: Desizing: adding soda ash, scouring agent and chelating agent in the desizing machine to remove the oil in the fabric; S3: Dissolving yarn treatment: adding NaOH solution at a ratio of 10 g / L to the dissolving solution to dissolve the alkali-soluble yarn in the fabric; S4: Anti-ultraviolet treatment: the fabric is immersed in an acidic anti-ultraviolet agent solution for dyeing, and then fixed and washed; S5: shaping and finishing.

[0007] The alkali-soluble yarn is mixed into the warp yarn and / or the weft yarn of the yarn.

[0008] The concentration of the NaOH solution in step S3 is 32%.

[0009] The treatment temperature of step S3 is 120° C. and the treatment time is 60 min.

[0010] The pH value of the anti-ultraviolet agent solution in step S4 is 3.5-4.5, and the amount of the anti-ultraviolet agent is 3-6% owf.

[0011] The treatment temperature in step S2 is 85-95° C., and the treatment time is 3-5 min.

[0012] After the step S4, the fabric is subjected to a water-repellent treatment; the fabric is dipped into a water-repellent solution and then dried at a temperature of 110-120°C.

[0013] The processing temperature of step S5 is 140-160° C., and the processing speed is 40-50 m / min.

[0014] A highly breathable and anti-ultraviolet fabric is made according to the preparation method of the highly breathable and anti-ultraviolet fabric.

[0015] The warp density of the yarn is 200-300 yarns / inch, and the weft density is 150-200 yarns / inch.

[0016] The invention discloses a method for preparing a highly breathable and anti-ultraviolet resistant fabric, which comprises mixing alkali-soluble yarn into the weaving of the fabric, dissolving the yarn with alkali solution to form tiny pores on the fabric, and then subjecting the fabric after the soluble yarn treatment to anti-ultraviolet treatment, so that the fabric has both anti-ultraviolet function and lightweight and highly breathable characteristics.

[0017] The highly breathable and UV-resistant fabric of the present invention has an air permeability of 30 ml / cm 2 / sec or more, while the air permeability of ordinary sunscreen fabrics on the market is usually 1-7ml / cm 2 / sec; the ultraviolet protection factor (UPF) of the fabric of the present invention reaches 50+, and the transmittance of UVA and UVB is less than 3%. The highly breathable and anti-ultraviolet fabric of the present invention has uniform pores on the surface of the fabric, which can block ultraviolet rays while also having excellent breathability and lightness and softness. Even if worn outdoors for a long time, it can quickly dissipate heat and sweat, and is not stuffy and sticky, providing an excellent wearing experience. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] Figure 1 The experimental data of air permeability and water repellency level of the embodiment of the present invention in the initial state and after washing 10 times are shown. Figure 2 The experimental data of the UV protection factor of the embodiment of the present invention in the initial state and after washing 10 times are shown. Figure 3It is a structural schematic diagram of a highly breathable and UV-resistant fabric of the present invention.

[0019] In the figure: 1- fabric, 11- pores, 12- anti-ultraviolet agent layer; L0- initial state; L10- state after washing 10 times. DETAILED DESCRIPTION

[0020] The following is combined with Figure 1-3 , further illustrating the present invention.

[0021] The invention discloses a method for preparing a highly breathable and UV-resistant fabric, comprising the following steps: S1: weaving; alkali-soluble yarn is mixed into yarn at a ratio of 15-50%, the yarn is warped, sized, and beamed, and then weaved on a loom; the yarn adopts a composite yarn of 15-50D, preferably nylon-spandex composite yarn or polyester-spandex composite yarn; S2: desizing; soda ash, a scouring agent, and a chelating agent are added in a desizing machine for treatment to remove the oil in the fabric; S3: yarn dissolving treatment; NaOH solution is added in a dissolving solution at a ratio of 10 g / L to dissolve the alkali-soluble yarn in the fabric, so that a plurality of tiny pores are formed in the fabric; S4: Anti-ultraviolet treatment: the fabric is immersed in an acidic anti-ultraviolet agent solution for dyeing, and then fixed and washed; S5: shaping and finishing: the shape, size and stability of the fabric are adjusted by heat setting to eliminate the stress and strain accumulated in the fabric, so that the fibers in the fabric can be in a more appropriate natural arrangement state, thereby reducing the deformation of the fabric during subsequent processing and use.

[0022] Alkali-soluble yarn is mixed into the warp and / or weft of the yarn; when alkali-soluble yarn is mixed into the warp or weft of the yarn, the pores in the fabric are arranged in strips; when alkali-soluble yarn is mixed into both the warp and weft of the yarn, the pores in the fabric are arranged in a grid.

[0023] The concentration of the NaOH solution in step S3 is 32%.

[0024] The treatment temperature of step S3 is 120° C. and the treatment time is 60 min.

[0025] In step S4, the pH value of the anti-ultraviolet agent solution is 3.5-4.5, and the amount of the anti-ultraviolet agent used is 3-6% owf.

[0026] The treatment temperature in step S2 is 85-95° C., and the treatment time is 3-5 min.

[0027] After step S4, the fabric is subjected to water-repellent treatment; the fabric is dipped into the water-repellent solution and then dried at a temperature of 110-120° C. without calendering treatment to avoid affecting the air permeability of the fabric.

[0028] The processing temperature of step S5 is 140-160° C., and the processing speed is 40-50 m / min.

[0029] The highly breathable and anti-ultraviolet fabric of the present invention is made according to the preparation method of the highly breathable and anti-ultraviolet fabric. Figure 3 The fabric 1 has evenly distributed tiny pores 11, which has excellent air permeability, and is comfortable to wear even when worn for a long time without feeling stuffy. The anti-ultraviolet agent layer 12 attached to the fabric 1 reflects a small amount of ultraviolet rays on the one hand, and absorbs a large amount of ultraviolet rays on the other hand, which can effectively prevent ultraviolet rays from damaging human skin.

[0030] The warp yarn density is 200 to 300 yarns / inch, and the weft yarn density is 150 to 200 yarns / inch.

[0031] Embodiment 1: A method for preparing a highly breathable and UV-resistant fabric, comprising the following steps: S1: Weaving; the yarn is made of nylon fine denier coated spandex composite yarn, and alkali-soluble yarn is mixed into the yarn at a ratio of 25%. The yarn is warped, sizing, and beamed before weaving on a loom; the warp density of the yarn is 220 strands / inch, and the weft density is 160 strands / inch; S2: desizing; adding soda ash, scouring agent and chelating agent in the desizing machine to remove the oil in the fabric; the treatment temperature is 88°C and the treatment time is 3.9 minutes; S3: Dissolving yarn treatment: NaOH solution was added to the dissolving liquid at a ratio of 10 g / L to dissolve the alkali-soluble yarn in the fabric; the concentration of NaOH solution was 32%, the treatment temperature was 120°C, and the treatment time was 60 min S4: Anti-ultraviolet treatment: the fabric is dyed by immersing it in an acidic solution containing white dye and anti-ultraviolet agent, and then fixing and washing it; the pH value of the anti-ultraviolet agent solution is 4.2, and the amount of the anti-ultraviolet agent is 5% owf; the fabric is then treated with water repellent: the fabric is dipped in a water repellent solution composed of a fluorine-free water repellent agent, a bridging agent, a penetrant, an organic acid, etc., and then dried at 114°C; S5: shaping and finishing, processing temperature is 145℃, processing speed is 48m / min.

[0032] Embodiment 2: A method for preparing a highly breathable and UV-resistant fabric, comprising the following steps: S1: Weaving; the yarn is polyester-spandex composite yarn, 15% of which is mixed with alkali-soluble yarn. The yarn is warped, sizing, and beamed before weaving on a loom; the warp density of the yarn is 200 yarns / inch, and the weft density is 150 yarns / inch; S2: Desizing: adding soda ash, scouring agent and chelating agent in the desizing machine to remove the oil in the fabric; the treatment temperature is 95°C and the treatment time is 5 minutes; S3: Dissolving yarn treatment: NaOH solution was added to the dissolving liquid at a ratio of 10 g / L to dissolve the alkali-soluble yarn in the fabric; the concentration of NaOH solution was 32%, the treatment temperature was 120°C, and the treatment time was 60 min S4: Anti-ultraviolet treatment: the fabric is immersed in an acidic solution containing blue dye and anti-ultraviolet agent for dyeing, and then fixed and washed; the pH value of the anti-ultraviolet agent solution is 3.5, and the amount of the anti-ultraviolet agent is 3% owf; the fabric is then treated with water repellent: the fabric is dipped in a water repellent solution composed of a fluorine-free water repellent agent, a bridging agent, a penetrant, glacial acetic acid, etc., and then dried at 120°C; S5: shaping and finishing, processing temperature is 160℃, processing speed is 44m / min.

[0033] Embodiment 3: A method for preparing a highly breathable and UV-resistant fabric, comprising the following steps: S1: Weaving; the yarn is made of nylon fine denier coated spandex composite yarn, 50% of the alkali-soluble yarn is mixed into the yarn, the yarn is warped, sizing, and beamed, and then woven on a loom; the warp density of the yarn is 300 strands / inch, and the weft density is 200 strands / inch; S2: Desizing: adding soda ash, scouring agent and chelating agent in the desizing machine to remove the oil in the fabric; the treatment temperature is 85°C and the treatment time is 3 minutes; S3: Dissolving yarn treatment: NaOH solution was added to the dissolving liquid at a ratio of 10 g / L to dissolve the alkali-soluble yarn in the fabric; the concentration of NaOH solution was 32%, the treatment temperature was 120°C, and the treatment time was 60 min S4: Anti-ultraviolet treatment: the fabric is dyed by immersing it in an acidic solution containing pink dye and anti-ultraviolet agent, and then undergoing color fixing and washing treatment; the pH value of the anti-ultraviolet agent solution is 4.5, and the amount of the anti-ultraviolet agent is 6% owf; the fabric is then subjected to water-repellent treatment: the fabric is dipped into a water-repellent solution composed of a fluorine-free water-repellent agent, a bridging agent, a penetrant, citric acid, etc., and then dried at 110°C; S5: shaping and finishing, processing temperature is 140℃, processing speed is 40m / min.

[0034] Embodiment 4: A method for preparing a highly breathable and UV-resistant fabric, comprising the following steps: S1: Weaving; the yarn is polyester-spandex composite yarn, 40% of which is mixed with alkali-soluble yarn. The yarn is warped, sizing, and beamed before weaving on a loom; the warp density of the yarn is 270 strands / inch, and the weft density is 180 strands / inch; S2: Desizing: adding soda ash, scouring agent and chelating agent in the desizing machine to remove the oil in the fabric; the treatment temperature is 92°C and the treatment time is 4.2 minutes; S3: Dissolving yarn treatment: NaOH solution was added to the dissolving liquid at a ratio of 10 g / L to dissolve the alkali-soluble yarn in the fabric; the concentration of NaOH solution was 32%, the treatment temperature was 120°C, and the treatment time was 60 min S4: Anti-ultraviolet treatment: the fabric is dyed by immersing it in an acidic solution containing dark blue dye and anti-ultraviolet agent, and then undergoing color fixing and washing treatment; the pH value of the anti-ultraviolet agent solution is 3.9, and the amount of the anti-ultraviolet agent used is 4% owf; the fabric is then subjected to water-repellent treatment: the fabric is dipped into a water-repellent solution composed of a fluorine-free water-repellent agent, a bridging agent, a penetrant, oxalic acid, etc., and then dried at 118°C; S5: shaping and finishing, processing temperature is 152℃, processing speed is 50m / min.

[0035] See attached Figure 1-2 The air permeability of the fabrics made in the embodiments of the present invention in the initial state L0 and the state L10 after washing 10 times is 30ml / cm 2 / sec, which is much higher than the 1-7ml / cm2 of common sunscreen fabrics on the market. 2 / sec air permeability level; the fabric still has a high UPF value and low UVA, UVB transmittance, as well as a high water-repellent level after 10 washes.

[0036] Regarding the contents disclosed in the present invention, there are still the following points to be explained: (1) The embodiments disclosed in the present invention are only examples, and the technical solutions implemented by other equivalent alternative technical means shall fall within the protection scope of the present invention; (2) In the absence of conflict, the technical features disclosed in the present invention may be combined with each other to obtain new embodiments; The above are only specific implementation methods disclosed in the present invention, but the protection scope of the present invention is not limited thereto. Technical solutions obtained after modifications and transformations of certain technical features by those skilled in the art based on the contents disclosed in the present invention should all be within the protection scope of the present invention.

Claims

1. A method for preparing a highly breathable and UV-resistant fabric, characterized in that: The following steps are involved: S1: Weaving: Alkaline soluble yarn is mixed into the yarn at a ratio of 15-50%, the yarn is warped, sizing, and beamed, and then the yarn is weaved on a loom; S2: Desizing: adding soda ash, scouring agent and chelating agent in the desizing machine to remove the oil in the fabric; S3: Dissolving yarn treatment: adding NaOH solution at a ratio of 10 g / L to the dissolving solution to dissolve the alkali-soluble yarn in the fabric; S4: Anti-ultraviolet treatment: the fabric is immersed in an acidic anti-ultraviolet agent solution for dyeing, and then fixed and washed; S5: shaping and finishing.

2. The method for preparing a highly breathable and UV-resistant fabric according to claim 1, characterized in that: The alkali-soluble yarn is mixed into the warp yarn and / or the weft yarn of the yarn.

3. The method for preparing a highly breathable and UV-resistant fabric according to claim 1, characterized in that: The concentration of the NaOH solution in step S3 is 32%.

4. The method for preparing a highly breathable and UV-resistant fabric according to claim 1, characterized in that: The treatment temperature of step S3 is 120° C. and the treatment time is 60 min.

5. The method for preparing a highly breathable and UV-resistant fabric according to claim 1, characterized in that: The pH value of the anti-ultraviolet agent solution in step S4 is 3.5-4.5, and the amount of the anti-ultraviolet agent is 3-6% owf.

6. The method for preparing a highly breathable and UV-resistant fabric according to claim 1, characterized in that: The treatment temperature in step S2 is 85-95° C., and the treatment time is 3-5 min.

7. The method for preparing a highly breathable and UV-resistant fabric according to claim 1, characterized in that: After the step S4, the fabric is subjected to a water-repellent treatment; the fabric is dipped into a water-repellent solution and then dried at a temperature of 110-120°C.

8. The method for preparing a highly breathable and UV-resistant fabric according to claim 1, characterized in that: The processing temperature of step S5 is 140-160° C., and the processing speed is 40-50 m / min.

9. A highly breathable and UV-resistant fabric, characterized in that: The highly breathable and UV-resistant fabric is made according to the preparation method of any one of claims 1 to 8.

10. A highly breathable and UV-resistant fabric according to claim 9, characterized in that: The warp density of the yarn is 200-300 yarns / inch, and the weft density is 150-200 yarns / inch.

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