CN110540677B

CN110540677B - Preparation method of carrier for attaching dye

Info

Publication number: CN110540677B
Application number: CN201810519460.3A
Authority: CN
Inventors: 笪俊杰
Original assignee: Puning Lianfa Clothing Washing And Dyeing Co ltd
Current assignee: Puning Lianfa clothing washing and dyeing Co.,Ltd.
Priority date: 2018-05-28
Filing date: 2018-05-28
Publication date: 2021-11-26
Anticipated expiration: 2038-05-28
Also published as: CN110540677A

Abstract

The invention discloses a preparation method of a carrier for attaching dye, which comprises the following steps: (1) immersing the kaolinite in 0.01-0.1mol/L sodium hydroxide aqueous solution, washing with clear water after 2-3h, and airing to obtain modified kaolinite for later use; (2) selecting a second component containing one or more of sodium alginate, chitosan or polyvinyl alcohol, preparing into an aqueous solution with the concentration of 0.01-0.1g/ml, carrying out ultrasonic treatment, and freeze-drying; (3) mixing the second component obtained in the step (2) with the modified kaolinite obtained in the step (1) according to the mass ratio of 1: 20-50, and mixing to obtain the finished product. The carrier of the invention can be simultaneously attached with inorganic dye and organic dye, and the dye has washing fastness and light fastness.

Description

Preparation method of carrier for attaching dye

Technical Field

The invention relates to a preparation method of a carrier composite material, in particular to a preparation method of a carrier for attaching a dye.

Background

Dyes are organic compounds that give other materials a vivid and strong hue, and are also called synthetic dyes because pigments used at present are artificially synthesized. Dyes and pigments are generally compounds which are inherently coloured and which are capable of giving other substances a vivid and strong shade in the molecular or dispersed state. At present, the most used dye in textile industry is direct dye, and the dye can be directly dyed on various fibers such as cotton, hemp, silk, wool and the like without depending on other medicaments. However, the dyeing method is simple, complete in color spectrum, low in cost and poor in washing fastness and light fastness.

Disclosure of Invention

The purpose of the invention is as follows: the invention solves the problems of washability and poor light fastness of the textile in the dyeing process, and provides the preparation method for the dye carrier, and the prepared carrier can be simultaneously attached with inorganic dye and organic dye and has wide application range.

The technical scheme is as follows: the carrier for attaching the dye comprises a first component and a second component, wherein the first component at least comprises one or more of modified kaolinite, alumina and talcum powder; the second component comprises one or more of sodium alginate, chitosan and polyvinyl alcohol; the mass ratio of the first component to the second component is 20-50: 1.

Further, the first component also comprises alumina and talcum powder.

Further, the first component comprises modified kaolinite, alumina and talcum powder in a mass ratio of 10:1: 2-3.

Further, the second component comprises sodium alginate, chitosan and polyvinyl alcohol in a mass ratio of 2:2: 1.

Further, the modified kaolinite is obtained by mixing kaolinite and 0.01-0.1mol/L sodium hydroxide aqueous solution for 2-3h, washing with clear water and drying.

Further, the particle diameter of the alumina is 10-50 nm.

The preparation method of the carrier for attaching the dye comprises the following steps: (1) immersing the kaolinite in 0.01-0.1mol/L sodium hydroxide aqueous solution, washing with clear water after 2-3h, and airing to obtain modified kaolinite for later use; (2) selecting one or more of sodium alginate, chitosan or polyvinyl alcohol, preparing into water solution with concentration of 0.01-0.1g/ml, performing ultrasonic treatment, and freeze drying; (3) mixing the second component obtained in the step (2) with the modified kaolinite obtained in the step (1) according to the mass ratio of 1: 20-50, and mixing to obtain the finished product.

Further, in the step (3), the second component and the first component are mixed according to the mass ratio of 1: 20-50 mixing; the first component comprises modified kaolinite, alumina and talc.

Further, the mass ratio of the modified kaolinite to the alumina to the talcum powder is 10:1: 2-3.

Further, in the step (2), the second component comprises sodium alginate, chitosan and polyvinyl alcohol in a mass ratio of 2:2: 1.

Further, in the step (2), the molecular weight of sodium alginate, chitosan or polyvinyl alcohol is 10000-.

Further, in the step (2), the ultrasonic treatment is performed under the conditions that the ultrasonic power is 20-50Kw and the ultrasonic time is 10-20 min.

Further, the particle size of the alumina is 10-50 nm.

Has the advantages that: (1) the invention changes the surface property of the kaolinite by modifying the kaolinite, and has better adhesiveness to dyes; (2) the invention provides a carrier capable of loading inorganic dye and organic dye by screening the carrier of the dye.

Detailed Description

Preparation of a vector

Example 1: the preparation method of the carrier for attaching the dye comprises the following steps: (1) immersing the kaolinite in 0.01mol/L sodium hydroxide aqueous solution, washing with clear water after 2h, and airing to obtain modified kaolinite for later use; (2) mixing sodium alginate, chitosan and polyvinyl alcohol in a mass ratio of 2:2:1 to prepare an aqueous solution with the concentration of 0.01g/ml, carrying out ultrasonic treatment with the ultrasonic power of 20Kw and the ultrasonic time of 10min, and freeze-drying; (3) mixing the second component obtained in the step (2) with the first component according to the mass ratio of 1: 20, mixing the components, wherein the first component is prepared by mixing modified kaolinite, 10nm aluminum oxide and talcum powder according to the mass ratio of 10:1:2, and obtaining a finished carrier product.

Example 2: the preparation method of the carrier for attaching the dye comprises the following steps: (1) immersing the kaolinite in 0.1mol/L sodium hydroxide aqueous solution, washing with clear water after 3h, and airing to obtain modified kaolinite for later use; (2) mixing sodium alginate, chitosan and polyvinyl alcohol in a mass ratio of 2:2:1 to prepare an aqueous solution with the concentration of 0.1g/ml, carrying out ultrasonic treatment with the ultrasonic power of 50Kw and the ultrasonic time of 20min, and freeze-drying; (3) mixing the second component obtained in the step (2) with the first component according to the mass ratio of 1: 50, and the first component is formed by mixing modified kaolinite, 50nm aluminum oxide and talcum powder according to the mass ratio of 10:1:3 to obtain a finished carrier product.

Example 3: the preparation method of the carrier for attaching the dye comprises the following steps: (1) immersing the kaolinite in 0.05mol/L sodium hydroxide aqueous solution, washing with clear water after 2h, and airing to obtain modified kaolinite for later use; (2) mixing sodium alginate, chitosan and polyvinyl alcohol in a mass ratio of 2:2:1 to prepare an aqueous solution with the concentration of 0.05g/ml, carrying out ultrasonic treatment with the ultrasonic power of 30Kw and the ultrasonic time of 15min, and freeze-drying; (3) mixing the second component obtained in the step (2) with the first component according to the mass ratio of 1: 30, and the first component is prepared by mixing modified kaolinite, 30nm alumina and talcum powder according to the mass ratio of 10:1:2 to obtain a finished carrier product.

Secondly, measuring the dye adhesion performance

The carriers prepared in examples 1 to 3 were subjected to dye attachment experiments: selecting a commercially available nonionic azo dye and a commercially available chemical fiber cloth, and carrying out washing fastness determination:

washing fastness: washing powder without chlorine is used, the addition amount of the washing powder is 4 g/L, 150 g of water solution dissolved with the washing powder is taken, a sample cloth with the size of 10X4cm is put into the solution, the solution is set at 20 ℃, and the solution is shaken and washed for 30 minutes. The swatch must be washed with a piece of white cloth to detect if there is any color washed.

Light fastness: the light fastness was determined using commercially available nonionic azo dyes, commercially available cotton cloth: the results of the color fastness measurements, measured according to the method of GB/T8426-1998, are shown in Table 1, based on the color change of the test specimen before and after the test, compared with the standard sample card.

TABLE 1 Effect of dye Carriers prepared under different conditions on the Wash and light fastness of dyes

Sample (I)	Fastness to washing	Light fastness
			Example 1	Five stages	Five stages
Example 2	Five stages	Five stages
			Example 3	Five stages	Five stages

From the results shown in table 1, it is understood that the present invention has good adhesion to dyes, and the presence of a carrier in the dye which is liable to undergo discoloration provides excellent light fastness and is less liable to undergo discoloration.

The main purpose of modifying the kaolinite in the invention is to remove ions on the surface of the kaolinite so that the kaolinite has better adhesiveness, and the addition of the alumina and the talcum powder can enlarge the adhesiveness of the kaolinite to dyes with different properties.

In addition, the polysaccharide solution is subjected to ultrasonic treatment, so that the obtained particles can realize multiple effects, firstly, the dye is directly mixed with the particles, the attachment is realized by utilizing the charges on the surfaces of the particles, the charged organic dye is well adsorbed, secondly, the dye and the polysaccharide can be mixed firstly, and then, the ultrasonic preparation is carried out, and the method is suitable for unstable dyes.

Claims

1. A preparation method of a carrier for attaching dyes is characterized by comprising the following steps:

(1) immersing the kaolinite in 0.01-0.1mol/L sodium hydroxide aqueous solution, washing with clear water after 2-3h, and airing to obtain modified kaolinite for later use;

(2) selecting a second component containing one or more of sodium alginate, chitosan or polyvinyl alcohol, preparing into an aqueous solution with the concentration of 0.01-0.1g/ml, carrying out ultrasonic treatment, and freeze-drying;

(3) mixing the second component obtained in the step (2) with the modified kaolinite obtained in the step (1) according to the mass ratio of 1: 20-50, and mixing to obtain the finished product.

2. The method for preparing a carrier for attaching a dye according to claim 1, wherein in the step (3), the second component is mixed with the first component in a mass ratio of 1: 20-50 mixing; the first component comprises modified kaolinite, alumina and talc.

3. The method for preparing the carrier for attaching the dye according to claim 2, wherein the mass ratio of the modified kaolinite to the alumina to the talc is 10:1: 2-3.

4. The method for preparing a carrier for attaching a dye, as recited in claim 1, wherein in the step (2), the second component comprises sodium alginate, chitosan and polyvinyl alcohol in a mass ratio of 2:2: 1.

5. The method for preparing a carrier for attaching a dye as set forth in claim 1, wherein the molecular weight of sodium alginate, chitosan or polyvinyl alcohol in the step (2) is 10000-20000 kDa.

6. The method for preparing a support for attaching a dye according to claim 1, wherein in the step (2), the ultrasonic treatment is performed under conditions of an ultrasonic power of 20 to 50kW and an ultrasonic time of 10 to 20 min.

7. The method for preparing a carrier for attaching a dye according to claim 1, wherein the particle size of the alumina is 10 to 50 nm.