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Organic perovskite paste for vat dye printing of cotton fabric and preparation method and application of organic perovskite paste

A cotton fabric and organic calcium technology, applied in the field of organic perovskite paste and its preparation, can solve the problems of inability to uniformly disperse chemical additives and dyes, limit the application of perovskite materials, and weak ability to transfer dyes, etc., to achieve High color fastness to dry rubbing and color fastness to soaping, small change in viscosity and high permeability

Active Publication Date: 2021-04-30
WUHAN TEXTILE UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Conventional perovskite materials cannot uniformly disperse chemical additives and dyes in the colloid system, and their viscosity changes greatly when diluted; in addition, their ability to transfer dyes is weak
Due to these unfavorable factors, the application of perovskite materials in the field of printing paste is limited, and these unfavorable factors must be overcome technically

Method used

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  • Organic perovskite paste for vat dye printing of cotton fabric and preparation method and application of organic perovskite paste

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] The preparation method of the organic perovskite paste that is used for vat dye printing of cotton fabric, concrete method comprises the following steps:

[0030] (1) Preparation of perovskite organic precursor: Add 10mL of dichloromethane and 11mL of trimethylamine to 30mL of acetonitrile solution, and react at room temperature for 30h. After the reaction, distill under reduced pressure to obtain a white solid, which is perovskite organic precursor. Precursor.

[0031] (2) Preparation of aluminum sol: 10g aluminum trichloride (AlCl 3 ) and 150mL isopropanol were mixed evenly, stirred for 2 hours, and passed into ammonia gas for reaction, the feed rate of ammonia gas was: 2mL / min, and the reaction time was 3 hours; A mixed solution of aluminum alkoxide-isopropanol; 100mL aluminum isopropoxide-isopropanol mixed solution was dissolved in 200mL propanol to make mixed solution a, 10mL 5% hydrochloric acid was dissolved in 150mL deionized water to make mixed solution b, Ad...

Embodiment 2

[0036] The preparation method of the organic perovskite paste that is used for vat dye printing of cotton fabric, concrete method comprises the following steps:

[0037] (1) Preparation of perovskite organic precursor: Add 10mL dichloromethane and 10mL trimethylamine to 20mL acetonitrile solution, react at room temperature for 24 hours, after the reaction, distill under reduced pressure to obtain a white solid, which is the perovskite organic precursor. Precursor.

[0038] (2) Preparation of aluminum sol: 10g aluminum trichloride (AlCl 3 ) and 100mL isopropanol were mixed evenly, stirred for 1 hour, and passed into ammonia gas for reaction, the feed rate of ammonia gas was: 1mL / min, and the reaction time was 2 hours; A mixed solution of aluminum alkoxide-isopropanol; 100mL aluminum isopropoxide-isopropanol mixed solution was dissolved in 100mL propanol to make mixed solution a, 10mL5% hydrochloric acid was dissolved in 100mL deionized water to make mixed solution b, and The ...

Embodiment 3

[0043] The preparation method of the organic perovskite paste that is used for vat dye printing of cotton fabric, concrete method comprises the following steps:

[0044] (1) Preparation of perovskite organic precursor: Add 10mL dichloromethane and 12mL trimethylamine to 40mL acetonitrile solution, react at room temperature for 36h, after the reaction, distill under reduced pressure to obtain a white solid, which is the perovskite organic precursor. Precursor.

[0045] (2) Preparation of aluminum sol: 10g aluminum trichloride (AlCl 3 ) and 200mL isopropanol were mixed evenly, stirred for 3 hours, and passed into ammonia gas for reaction. The feed rate of ammonia gas was: 3mL / min, and the reaction time was 4 hours; A mixed solution of aluminum alkoxide-isopropanol; 100mL aluminum isopropoxide-isopropanol mixed solution was dissolved in 300mL propanol to make mixed solution a, 10mL5% hydrochloric acid was dissolved in 200mL deionized water to make mixed solution b, and The mixe...

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Abstract

The invention relates to organic perovskite paste for vat dye printing of cotton fabric and a preparation method and application of the organic perovskite paste. The paste is prepared by the following preparation method: firstly, preparing a perovskite organic precursor from dichloromethane and trimethylamine, and preparing alumina sol from aluminum trichloride, isopropanol and the like; then, enabling the perovskite organic precursor to react with the aluminum sol to prepare perovskite sol; and finally, dropwise adding a polyethylene glycol aqueous solution into a perovskite sol aqueous solution for reaction to prepare polyethylene glycol modified perovskite, namely the organic perovskite paste for vat dye printing of the cotton fabric. The organic perovskite paste prepared according to the method is used for vat dye printing of the cotton fabric, and the prepared printed fabric shows that a paste removal rate is higher than 90%; the softness is good; the contour definition is high; the permeability is higher than 92%; the color fastness to dry rubbing and the color fastness to soaping are high in grade, and the application prospect is good.

Description

technical field [0001] The invention belongs to the technical field of paste preparation and application, and in particular relates to an organic perovskite paste for vat dye printing on cotton fabrics, a preparation method and application thereof. Background technique [0002] Printing paste is a polymer compound that thickens and transfers dyes in textile printing pastes. It can be dissolved in water or fully swelled and dispersed in water to form a thick colloidal solution. As an essential component of printing paste, its properties such as rheology, water retention, reactivity with reactive dyes, and ease of washing off directly affect the printing effect, such as the color shade and surface color yield of printed fabrics , Pattern outline clarity, printing uniformity and hand feeling, etc. [0003] Cotton fabrics are often dyed with reactive dyes and vat dyes. Because vat dyes are expensive, cotton textiles are mostly dyed with cheap direct and reactive dyes. Especial...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/673D06P1/613D06P3/60D06P1/22
CPCD06P1/67341D06P1/6138D06P3/6025D06P1/22Y02E10/549
Inventor 周凡雨彭雄义崔永明刘仰硕董雄伟李强蔡亚君
Owner WUHAN TEXTILE UNIV
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