阅读说明：本技术 一种环保黑色棉面料及在服装的应用 (Environment-friendly black cotton fabric and application thereof to clothes ) 是由 陈丽玉 于 2020-12-24 设计创作，主要内容包括：本发明公开了一种环保黑色棉面料及在服装的应用,棉纤维经过质量浓度为0.1～5.0％的碱性溶液处理,50～65℃浸泡30～40min,取出；天然染料的干燥染材研磨至80～100目,加入有机溶剂A,浸提4～8h,过滤,得到的滤渣重新加入有机溶剂B,浸提4～8h,过滤,两次过滤得到的滤液混合,浓缩；经过处理的棉纤维放入含有天然染料的染液中,在100℃下染色45min,取出染色纤维40℃烘干,烘干后的染色纤维80℃预热后经过140℃高温定型,冷却卷曲。本发明方法得到的黑色棉面料耐摩擦色牢度、耐汗渍色牢度和耐水色牢度都比较高。(The invention discloses an environment-friendly black cotton fabric and application thereof to clothing, wherein cotton fibers are treated by an alkaline solution with the mass concentration of 0.1-5.0%, soaked for 30-40 min at the temperature of 50-65 ℃ and taken out; grinding a dried dye material of a natural dye to 80-100 meshes, adding an organic solvent A, leaching for 4-8 h, filtering, adding an organic solvent B into the obtained filter residue again, leaching for 4-8 h, filtering, mixing the filtrates obtained by the two times of filtering, and concentrating; placing the treated cotton fiber into a dye solution containing natural dye, dyeing for 45min at 100 ℃, taking out the dyed fiber, drying at 40 ℃, preheating the dried dyed fiber at 80 ℃, shaping at 140 ℃, cooling and curling. The black cotton fabric obtained by the method has high color fastness to rubbing, perspiration and water.)

1. The utility model provides an environmental protection black cotton fabric which characterized in that: the fabric raw materials comprise cotton fibers and natural dyes.

2. The environment-friendly black cotton fabric according to claim 1, wherein: the cotton fibers are treated by an alkaline solution with the mass concentration of 0.1-5.0% and soaked for 30-40 min at the temperature of 50-65 ℃.

3. The environment-friendly black cotton fabric according to claim 2, wherein: the alkaline solution is inorganic alkali liquor.

4. The environment-friendly black cotton fabric according to claim 1, wherein: the natural dye is a plant dye.

5. The environment-friendly black cotton fabric according to claim 4, wherein: the plant can be used for extracting black pigment.

6. The environment-friendly black cotton fabric according to claim 4, wherein: the vegetable dye extraction steps are as follows: grinding the dried dye to 80-100 meshes, adding an organic solvent A, leaching for 4-8 h, filtering, adding an organic solvent B into the obtained filter residue again, leaching for 4-8 h, filtering, mixing the filtrates obtained by filtering twice, and concentrating to obtain a dye solution.

7. The environment-friendly black cotton fabric according to claim 6, wherein: the organic solvent A is organic alcohol.

8. The environment-friendly black cotton fabric according to claim 6, wherein: the organic solvent B is a mixture of organic alcohol and organic acid.

9. The environment-friendly black cotton fabric according to claim 8, wherein: the mass concentration ratio of the organic alcohol to the organic acid in the organic solvent B is 1: 1-1: 3.

10. The application of the environment-friendly black cotton fabric is characterized in that: the fabric of any one of claims 1 to 9 applied to clothing.

Technical Field

The invention relates to the technical field of garment materials, in particular to an environment-friendly black cotton fabric and application thereof to garments.

Background

The fabric for clothes is various in types, wherein the cotton fabric takes cotton fibers as raw materials and has the advantages of moisture absorption, heat preservation, heat resistance, alkali resistance, sanitation, skin friendliness and the like, and the black cotton fabric needs to be dyed by black dye. Most of common black dyes are synthetic dyes, and the main component is azo compounds, which are harmful to human health and ecological environment.

Compared with synthetic dyes, the black natural dyes are extracted from organisms, little or no chemical processing is carried out, and compared with the synthetic dyes, the black natural dyes have the advantages of environmental friendliness, safety, no stimulation, biodegradability and the like, but the dyeing color fastness of the natural dyes is weaker.

In order to solve the problems, the fabric is usually subjected to mordant treatment after being dyed by natural dye to improve the color fastness, in a patent with the authorization number of CN201410603731.5 and the name of a processing method of wool fabric dyed by high-color-fastness natural dye, metal salt ions are used as a mordant to improve the color fastness of the natural dye, however, the mordant treatment is carried out after the fabric is dyed, so that the dyeing process is increased, and the treatment difficulty of dyeing waste liquid is increased.

Disclosure of Invention

In order to solve the technical problem that the color fastness of the fabric is weak after the fabric is dyed by the natural dye, the invention provides the environment-friendly black cotton fabric in a first aspect, wherein the raw materials comprise cotton fibers and the natural dye.

In a preferable embodiment, the cotton fiber is treated by an alkaline solution with the mass concentration of 0.1-5.0% and soaked for 30-40 min at the temperature of 50-65 ℃.

Further, the alkaline solution is an inorganic alkali solution.

As a preferred embodiment, the natural dye is a vegetable dye.

Further, the plant is a plant capable of extracting a black pigment.

Further, the plant dye extraction step is as follows: grinding the dried dye to 80-100 meshes, adding an organic solvent A, leaching for 4-8 h, filtering, adding an organic solvent B into the obtained filter residue again, leaching for 4-8 h, filtering, mixing the filtrates obtained by filtering twice, and concentrating to obtain a dye solution.

Further, the organic solvent A is an organic alcohol.

Further, the organic solvent B is a mixture of an organic alcohol and an organic acid.

Further, the mass concentration ratio of the organic alcohol to the organic acid in the organic solvent B is 1: 1-1: 3.

The second aspect of the invention provides application of the environment-friendly black cotton fabric, and any fabric is applied to clothes.

Compared with the prior art, the invention has the following beneficial effects:

(1) the cotton fiber is treated by alkaline solution at a certain temperature, so that cotton wax in the cotton fiber is removed, the cotton fiber deflection degree is changed, and the coloring capacity of the cotton fiber is improved.

(2) The method adopts a natural dye extraction mode, and the added organic solvent not only improves the leaching of the pigment, but also can be used as a color fixing agent to improve the dyeing color fastness of the natural dye and reduce the dyeing process procedures.

(3) The organic solvent adopted by the invention can be recycled, the pressure of subsequent waste liquid treatment is reduced, and the environment-friendly requirement is met.

(4) The environment-friendly black cotton fabric provided by the invention has the characteristics of skin friendliness, safety, no stimulation and high color fastness, and is widely applied to clothing production.

Detailed Description

In order to solve the problems, the invention provides an environment-friendly black cotton fabric which comprises raw materials of cotton fibers and natural dye; treating the cotton fibers with an alkaline solution with the mass concentration of 0.1-5.0%, and soaking for 30-40 min at 50-65 ℃; the alkaline solution is inorganic alkali liquor; the natural dye is a plant dye; the plant is capable of extracting black pigment; the vegetable dye extraction steps are as follows: grinding the dried dye to 80-100 meshes, adding an organic solvent A, extracting for 4-8 h, filtering, adding an organic solvent B into the obtained filter residue again, extracting for 4-8 h, filtering, mixing the filtrates obtained by the two times of filtering, and concentrating; the organic solvent A is organic alcohol; the organic solvent B is a mixture of organic alcohol and organic acid; the mass concentration ratio of the organic alcohol to the organic acid in the organic solvent B is 1: 1-1: 3.

The inorganic alkali liquor is usually alkali metal hydroxide, and cotton fibers expand after alkali liquor treatment, natural inflection disappears, and the cotton fibers are converted into smooth silk threads.

To reduce the damage of the alkali metal hydroxide to the cotton fibers, in a preferred embodiment, the alkali metal hydroxide selected is one or a combination of sodium hydroxide, potassium hydroxide.

The plant capable of extracting black series pigment comprises but is not limited to one or more of walnut, oak, acorn, Chinese gall, sapanwood, Chinese ilex leaf, chestnut shell, lotus seed shell, rat tail leaf, Chinese tallow tree leaf and Chinese mugwort leaf, and the Chinese mugwort leaf is selected as dyeing material in the invention.

Folium Vaccinii Bracteati refers to folium Vaccinii Bracteati, Vaccinium bracteatum Thunb, radix Seu folium Vaccinii Bracteati, stigma croci Sativi leaf, steamed rice, cowberry fruit, SHASHASHA flour, fructus Setariae, and GUZHENGSHUSHU, and is plant of Vaccinium of Ericaceae.

In order to improve the leaching rate of the plant pigment, in a preferred embodiment, the organic alcohol is one or more of methanol, ethanol, isopropanol and n-butanol.

In a preferred embodiment, the organic acid is one or more of acetic acid, propionic acid, citric acid.

The invention provides an environment-friendly black cotton fabric which is washable, sweat-resistant, dry-resistant and friction-resistant, can decompose carcinogenic aromatic amine dye to be less than or equal to 20mg/kg, can be used for manufacturing blouses, cardigan, vests, shirts, skirts and trousers, is skin-friendly, safe, non-irritant, does not have carcinogenic and teratogenic effects, and meets the requirements of ecological clothes.

The present invention will be specifically described below by way of examples. It should be noted that the following examples are only for illustrating the present invention and should not be construed as limiting the scope of the present invention, and that the insubstantial modifications and adaptations of the present invention by those skilled in the art based on the above disclosure are still within the scope of the present invention.

In addition, the starting materials used are all commercially available, unless otherwise specified.

Example 1

Embodiment 1 provides an environment-friendly black cotton fabric, which comprises cotton fibers and oriental blueberry leaves.

Adding cotton fiber into 5.0% sodium hydroxide water solution, heating to 50 deg.C, soaking for 30min, taking out, and washing with water to neutrality.

Weighing 20g of air-dried vaccinium bracteatum leaves, grinding the powder, sieving the powder by a solid sieve of 100 meshes, adding 200ml of ethanol water solution with the mass concentration of 70%, uniformly stirring, carrying out sealed leaching for 6h, filtering to obtain pigment leaching solution and filter residue, and adding 200ml of mixed water solution of ethanol and acetic acid with the mass concentration of 70% into the filter residue again, wherein the mass concentration ratio of the mixed solution of ethanol and acetic acid to water is 0.7: 0.3, the mass concentration ratio of the ethanol to the acetic acid in the mixed solution of the ethanol and the acetic acid is 1:1, sealing and leaching for 6 hours, filtering, mixing the filtrates obtained by filtering twice, and concentrating to obtain a dye solution.

Mixing the treated cotton fiber with the dye solution, dyeing for 45min at 100 ℃, taking out the dyed fiber, drying at 40 ℃, preheating the dried dyed fiber at 80 ℃, shaping at 140 ℃, and cooling and curling.

If the fabric needs to be dyed deeply, the dyeing is repeated.

Example 2

Embodiment 2 provides an environment-friendly black cotton fabric, which comprises cotton fibers and oriental blueberry leaves.

Adding cotton fiber into 5.0% sodium hydroxide water solution, heating to 50 deg.C, soaking for 30min, taking out, and washing with water to neutrality.

Weighing 20g of air-dried vaccinium bracteatum leaves, grinding the powder, sieving the powder by a solid sieve of 100 meshes, adding 200ml of ethanol water solution with the mass concentration of 70%, uniformly stirring, carrying out sealed leaching for 6h, filtering to obtain pigment leaching solution and filter residue, and adding 200ml of mixed water solution of ethanol and acetic acid with the mass concentration of 70% into the filter residue again, wherein the mass concentration ratio of the mixed solution of ethanol and acetic acid to water is 0.7: 0.3, the mass concentration ratio of the ethanol to the acetic acid in the mixed solution of the ethanol and the acetic acid is 1:3, sealing and leaching for 6 hours, filtering, mixing the filtrates obtained by filtering twice, and concentrating to obtain a dye solution.

Mixing the treated cotton fiber with the dye solution, dyeing for 45min at 100 ℃, taking out the dyed fiber, drying at 40 ℃, preheating the dried dyed fiber at 80 ℃, shaping at 140 ℃, and cooling and curling.

Comparative example 1

Comparative example 1 provides an environment-friendly black cotton fabric, which comprises cotton fibers and vaccinium bracteatum thunb leaves.

The cotton fibers were not treated.

Weighing 20g of air-dried vaccinium bracteatum leaves, grinding the powder, sieving the powder by a solid sieve of 100 meshes, adding 200ml of ethanol water solution with the mass concentration of 70%, uniformly stirring, carrying out sealed leaching for 6h, filtering to obtain pigment leaching solution and filter residue, and adding 200ml of mixed water solution of ethanol and acetic acid with the mass concentration of 70% into the filter residue again, wherein the mass concentration ratio of the mixed solution of ethanol and acetic acid to water is 0.7: 0.3, the mass concentration ratio of the ethanol to the acetic acid in the mixed solution of the ethanol and the acetic acid is 1:1, sealing and leaching for 6 hours, filtering, mixing the filtrates obtained by filtering twice, and concentrating to obtain a dye solution.

Mixing untreated cotton fiber with dye solution, dyeing at 100 deg.C for 45min, taking out the dyed fiber, oven drying at 40 deg.C, preheating the dried dyed fiber at 80 deg.C, shaping at 140 deg.C, cooling, and crimping.

Comparative example 2

Comparative example 2 provides an environment-friendly black cotton fabric, which comprises cotton fibers and vaccinium bracteatum thunb leaves.

Adding pure cotton fiber into 5% sodium hydroxide water solution, heating to 50 deg.C, soaking for 30min, taking out, and washing with water to neutrality.

Weighing 20g of air-dried vaccinium bracteatum leaves, grinding the powder, sieving the powder by a solid sieve of 100 meshes, adding 200ml of ethanol water solution with the mass concentration of 70%, uniformly stirring, carrying out sealed leaching for 6h, filtering to obtain pigment leaching solution and filter residues, adding 200ml of ethanol water solution with the mass concentration of 70% into the filter residues again, carrying out sealed leaching for 6h, filtering, mixing the filtrates obtained by twice filtering, and concentrating to obtain dye liquor.

Mixing the treated cotton fiber with the dye solution, dyeing for 45min at 100 ℃, taking out the dyed fiber, drying at 40 ℃, preheating the dried dyed fiber at 80 ℃, shaping at 140 ℃, and cooling and curling.

Comparative example 3

Comparative example 3 provides an environment-friendly black cotton fabric, which comprises cotton fibers and vaccinium bracteatum thunb leaves.

Adding cotton fiber into 5% sodium hydroxide water solution, heating to 50 deg.C, soaking for 30min, taking out, and washing with water to neutral.

Weighing 20g of air-dried vaccinium bracteatum leaves, grinding the powder, sieving the powder by a solid sieve of 100 meshes, adding 200ml of ethanol water solution with the mass concentration of 70%, uniformly stirring, carrying out sealed leaching for 6h, filtering to obtain pigment leaching solution and filter residue, and adding 200ml of mixed water solution of ethanol and acetic acid with the mass concentration of 70% into the filter residue again, wherein the mass concentration ratio of the mixed solution of ethanol and acetic acid to water is 0.7: 0.3, the mass concentration ratio of the ethanol to the acetic acid in the mixed solution of the ethanol and the acetic acid is 1: and 5, hermetically leaching for 6 hours, filtering, mixing filtrates obtained by filtering twice, and concentrating to obtain a dye solution.

Mixing the treated cotton fiber with the dye solution, dyeing for 45min at 100 ℃, taking out the dyed fiber, drying at 40 ℃, preheating the dried dyed fiber at 80 ℃, shaping at 140 ℃, and cooling and curling.

Performance testing

The color fastness test is carried out on the fabrics of the examples and the comparative examples by referring to the standard methods of GB/T3920-2008, GB/T3922-2013 and GB/T5713-2013, and the results are shown in Table 1.

TABLE 1

Examples	Colour fastness to dry rubbing (grade)	Colour fastness to perspiration (grade)	Fastness to water (grade)
				Example 1	5	5	5
Example 2	5	5	5
				Comparative example 1	3	3	3
Comparative example 2	3	3	3
				Comparative example 3	3	3	3

The above description is only a preferred embodiment of the present invention, and is not intended to limit the present invention in other forms, and any person skilled in the art may modify or change the technical content of the above disclosure into equivalent embodiments with equivalent changes, but all those simple modifications, equivalent changes and modifications made to the above embodiments according to the technical spirit of the present invention still belong to the protection scope of the present invention.