Production method of fluoride-free waterproof woven fabric

Abstract

The invention relates to a production method of a fluoride-free waterproof woven fabric. The production method comprises the following processes in sequence: (a) pre-treatment process; (b) dyeing process; (c) cleaning process; (d) plasma process; and (e) fluoride-free waterproof heat setting process. The production method is characterized in that plasma beams emitted by a plasma generator are utilized to irradiate the woven fabric to ensure that a concave-convex coarse structure is formed on the surface of the treated fabric and then fluoride-free finishing liquid is padded on the coarse surface of the fabric. The coarse structure on the surface of the plasma irradiated fabric can form a lotus effect so as to enhance the water repellency of the fabric. Meanwhile, after the plasma irradiation, reactive free radicals can be generated on the fiber surface so that the combination of the subsequent fluoride-free waterproof finishing agent and the fiber surface is steady and the fabric still has water repellency after repeated washing. According to the production method, the technical problems of low water repellency and washing intolerance in present fluoride-free waterproof finishing are solved.

Description

technical field

[0001] The invention relates to a production method of a fluorine-free waterproof woven fabric technical background

[0002] With the continuous advancement of science and technology, people's demand for textile functionality is getting higher and higher. When textiles are worn or used, they will inevitably encounter water and oil stains. Therefore, water-repellent textiles have entered people's lives.

[0003] The current woven waterproof fabrics use fluorine-containing water-repellent agents for water-repellent finishing, and the fluorine-containing water-repellent agents have high bond energy due to the C-F bond. It can significantly reduce the surface free energy of textiles, and show excellent water-repellent performance in water-repellent finishing. However, problems such as physiological toxicity and environmental refractory of fluorinated water-repellent agents have gradually emerged. These fluorinated substances basically contain PFOA. , PFOS, etc. ...

Examples

Embodiment example 1

[0024] 50D polyester plain weave production method flow:

[0025] (1) Pretreatment process: NaOH is 6g / L; penetrating agent JFC is 1g / L; degreasing agent AP is 7g / L; metal chelating dispersant FE is 1g / L; liquor ratio is 1:10; time is 40min; temperature 80°C.

[0026] (2) Dyeing process: place the woven fabric in a high-temperature and high-pressure jet dyeing machine, feed water to the same water level as the pre-treatment process, run at room temperature for 3 minutes, add metal chelating agent FE, leveling agent OB, glacial acetic acid, Sodium acetate and disperse dye 3B, the addition of described metal chelating agent FE is 0.2g / L, the addition of described leveling agent OB is 0.5% (o.w.f), the addition 0.5g / L of described glacial acetic acid, The addition amount of the sodium acetate is 0.5g / L, the addition amount of the disperse dye 3B is 1.0 (o.w.f), then the temperature is raised to 40°C, and the temperature is raised to 120°C at a rate of 0.7°C / min after 5 minutes o...

Embodiment example 2

[0035] 20D polyester woven plain weave production method flow:

[0036] (1) Pretreatment process: NaOH is 7g / L; penetrating agent JFC is 2g / L; degreasing agent AP is 8g / L; metal chelating dispersant FE is 2g / L; bath ratio is 1:15; time is 50min; temperature is 90 ℃.

[0037] (2) Dyeing process: place the woven fabric in a high-temperature and high-pressure jet dyeing machine, feed water to the same water level as the pre-treatment process, run at room temperature for 4 minutes, add metal chelating agent FE, leveling agent OB, glacial acetic acid, Sodium acetate and disperse dye 3B, the addition of described metal chelating agent FE is 0.4g / L, the addition of described leveling agent OB is 1.0% (o.w.f), the addition 1.5g / L of described glacial acetic acid, The addition amount of the sodium acetate is 1.5g / L, the disperse dye 3B is 2.0% (o.w.f), then the temperature is raised to 50°C, and the temperature is raised to 130°C at a rate of 1.0°C / min after 10 minutes of operation, a...

Embodiment example 3

[0046] 20D nylon woven plain weave production method flow:

[0047] (1) Pretreatment process: NaOH is 9g / L; penetrating agent JFC is 3g / L; degreasing agent AP is 10g / L; metal chelating dispersant FE is 4g / L; liquor ratio is 1:17; time is 60min; temperature is 110 ℃.

[0048] (2) Dyeing process: place the woven fabric in a high-temperature and high-pressure jet dyeing machine, feed water to the same water level as the pre-treatment process, run at room temperature for 5 minutes, add metal chelating agent FE, leveling agent OB, glacial acetic acid, Sodium acetate and disperse dye 3B, the addition of described metal chelating agent FE is 0.6g / L, the addition of described leveling agent OB is 2.0% (o.w.f), the addition 2.5g / L of described glacial acetic acid, The addition amount of the sodium acetate is 2.5g / L, the addition amount of the disperse dye 3B is 3.0% (o.w.f), and then the temperature is raised to 60°C, and the temperature is raised to 140°C at a rate of 1.5°C / min after...

technical field

[0001] The invention relates to a production method of a fluorine-free waterproof woven fabric technical background

[0002] With the continuous advancement of science and technology, people's demand for textile functionality is getting higher and higher. When textiles are worn or used, they will inevitably encounter water and oil stains. Therefore, water-repellent textiles have entered people's lives.

[0003] The current woven waterproof fabrics use fluorine-containing water-repellent agents for water-repellent finishing, and the fluorine-containing water-repellent agents have high bond energy due to the C-F bond. It can significantly reduce the surface free energy of textiles, and show excellent water-repellent performance in water-repellent finishing. However, problems such as physiological toxicity and environmental refractory of fluorinated water-repellent agents have gradually emerged. These fluorinated substances basically contain PFOA. , PFOS, etc. ...

Examples

Embodiment example 1

[0024] 50D polyester plain weave production method flow:

[0025] (1) Pretreatment process: NaOH is 6g / L; penetrating agent JFC is 1g / L; degreasing agent AP is 7g / L; metal chelating dispersant FE is 1g / L; liquor ratio is 1:10; time is 40min; temperature 80°C.

[0026] (2) Dyeing process: place the woven fabric in a high-temperature and high-pressure jet dyeing machine, feed water to the same water level as the pre-treatment process, run at room temperature for 3 minutes, add metal chelating agent FE, leveling agent OB, glacial acetic acid, Sodium acetate and disperse dye 3B, the addition of described metal chelating agent FE is 0.2g / L, the addition of described leveling agent OB is 0.5% (o.w.f), the addition 0.5g / L of described glacial acetic acid, The addition amount of the sodium acetate is 0.5g / L, the addition amount of the disperse dye 3B is 1.0 (o.w.f), then the temperature is raised to 40°C, and the temperature is raised to 120°C at a rate of 0.7°C / min after 5 minutes o...

Embodiment example 2

[0035] 20D polyester woven plain weave production method flow:

[0036] (1) Pretreatment process: NaOH is 7g / L; penetrating agent JFC is 2g / L; degreasing agent AP is 8g / L; metal chelating dispersant FE is 2g / L; bath ratio is 1:15; time is 50min; temperature is 90 ℃.

[0037] (2) Dyeing process: place the woven fabric in a high-temperature and high-pressure jet dyeing machine, feed water to the same water level as the pre-treatment process, run at room temperature for 4 minutes, add metal chelating agent FE, leveling agent OB, glacial acetic acid, Sodium acetate and disperse dye 3B, the addition of described metal chelating agent FE is 0.4g / L, the addition of described leveling agent OB is 1.0% (o.w.f), the addition 1.5g / L of described glacial acetic acid, The addition amount of the sodium acetate is 1.5g / L, the disperse dye 3B is 2.0% (o.w.f), then the temperature is raised to 50°C, and the temperature is raised to 130°C at a rate of 1.0°C / min after 10 minutes of operation, a...

Embodiment example 3

[0046] 20D nylon woven plain weave production method flow:

[0047] (1) Pretreatment process: NaOH is 9g / L; penetrating agent JFC is 3g / L; degreasing agent AP is 10g / L; metal chelating dispersant FE is 4g / L; liquor ratio is 1:17; time is 60min; temperature is 110 ℃.

[0048] (2) Dyeing process: place the woven fabric in a high-temperature and high-pressure jet dyeing machine, feed water to the same water level as the pre-treatment process, run at room temperature for 5 minutes, add metal chelating agent FE, leveling agent OB, glacial acetic acid, Sodium acetate and disperse dye 3B, the addition of described metal chelating agent FE is 0.6g / L, the addition of described leveling agent OB is 2.0% (o.w.f), the addition 2.5g / L of described glacial acetic acid, The addition amount of the sodium acetate is 2.5g / L, the addition amount of the disperse dye 3B is 3.0% (o.w.f), and then the temperature is raised to 60°C, and the temperature is raised to 140°C at a rate of 1.5°C / min after...