Unlock instant, AI-driven research and patent intelligence for your innovation.

Preparation method and application of poly-aluminum chloride loaded tryptophan derivative

A technology of polyaluminum chloride and tryptophan, applied in the field of printing thickeners, can solve the problems of molecular chain degradation at paste making temperature, poor salt resistance, high price of sodium alginate, and achieve good thickening performance and salt resistance. Performance, strong hydrophilicity, good wash-off effect

Inactive Publication Date: 2020-07-03
陶方琴
View PDF0 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Printing thickeners mainly include organic thickeners and inorganic thickeners. The earliest used printing thickeners are natural starch and sodium alginate. However, due to the difficulty in making pulp from natural starch, the washability of the paste after printing is poor; and The price of sodium alginate is high, and the temperature of paste making is too high, which will easily cause the degradation of molecular chains
Inorganic thickeners are a kind of gel minerals that absorb water and swell to form thixotropy, but the thickening properties of inorganic thickeners cannot meet the requirements of textile printing technology, thus limiting their application in textile printing industry
[0004] At present, common printing thickeners on the market have poor salt resistance, and neutral salts are often added in reactive dye printing, so thickeners without salt resistance cannot meet the requirements of the printing process

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Preparation method and application of poly-aluminum chloride loaded tryptophan derivative
  • Preparation method and application of poly-aluminum chloride loaded tryptophan derivative
  • Preparation method and application of poly-aluminum chloride loaded tryptophan derivative

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0039] (1) Preparation of tryptophan derivatives: 2.48g 4-carboxytryptophan and 1.51g 4-hydroxybutyl acrylate were dissolved in 50mL of dilute sulfuric acid with a mass concentration of 2%, and 0.5mL of a mass concentration of 98% was added dropwise concentrated sulfuric acid, heated to 80°C for 3 hours, after the reaction was completed, 50 mL of ethyl acetate was added for extraction, the organic phase was taken, column chromatography (volume ratio of ethyl acetate and petroleum ether was 4:1), and dried at 70°C for 5 hours to obtain the color Amino acid derivatives; 1 H NMR (DMSO-d 6 ,400MHz),δ:13.26(s,1H),10.66(s,1H),9.02(s,2H),7.88-7.46(m,3H),7.23(s,1H),6.38-5.99(m,3H ), 3.98-3.23(m,7H), 1.65(m,4H); ESI-MS: m / z=375.15[M+1] + .

[0040] (2) Dewatering of white polyaluminum chloride: heat up to 80°C at a heating rate of 5°C / min to dewater 5g of white polyaluminum chloride for 3 hours;

[0041] (3) Preparation of polyaluminum chloride-loaded tryptophan derivatives: dissol...

Embodiment 2

[0043] The difference between embodiment 2 and embodiment 1 is that the consumption of polyaluminum chloride in step (3) is changed to 4g.

Embodiment 3

[0045] The difference between Example 3 and Example 1 is that 4-hydroxybutyl acrylate in step (1) is replaced by 1.39 g of 4-amino-5-hydroxypentanamide. 1 H NMR(DMSO-d6,400MHz),δ:13.26(s,1H),10.66(s,1H),8.76(s,2H),7.86-7.44(m,3H),7.15(s,1H),7.05 (s,2H),4.14-3.20(m,8H),2.12(s,2H),1.71(s,2H); ESI-MS: m / z=385.16[M+Na] + .

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

PUM

PropertyMeasurementUnit
viscosityaaaaaaaaaa
viscosityaaaaaaaaaa
quality scoreaaaaaaaaaa
Login to View More

Abstract

The invention discloses a preparation method and application of a poly-aluminum chloride loaded tryptophan derivative, and relates to the technical field of printing thickeners. The preparation methodcomprises the following preparation steps that (1) a tryptophan derivative is prepared; (2) water is removed from white poly-aluminum chloride; and (3) the poly-aluminum chloride loaded tryptophan derivative is prepared. According to the preparation method and the application of the poly-aluminum chloride loaded tryptophan derivative, the poly-aluminum chloride loaded tryptophan derivative is prepared by synthesizing a novel colored tryptophan derivative and by taking the white poly-aluminum chloride as a carrier; the new application of the prepared poly-aluminum chloride loaded tryptophan derivative as a printing thickener is realized, good thickening performance and salt resistance can be obtained, and the infiltration of salt-containing dyes is limited; and meanwhile, the prepared poly-aluminum chloride loaded tryptophan derivative is high in hydrophilicity, so that the paste material is good in washing removal performance after printing is finished, and the requirement of a textile printing process is met.

Description

Technical field: [0001] The invention relates to the technical field of printing thickeners, in particular to a preparation method and application of polyaluminum chloride-loaded tryptophan derivatives. Background technique: [0002] Printing thickener is the most commonly used thickener in the printing industry. Its main function is to provide good rheological properties, transfer the glue or color paste on the printing screen and printing roller to the fabric, and make the dye and The fibers bond together to ensure a defined print. [0003] Printing thickeners mainly include organic thickeners and inorganic thickeners. The earliest used printing thickeners are natural starch and sodium alginate. However, due to the difficulty in making pulp from natural starch, the washability of the paste after printing is poor; and The price of sodium alginate is high, and the temperature of paste making is too high, which will easily cause the degradation of molecular chains. Inorgani...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More

Application Information

Patent Timeline
no application Login to View More
Patent Type & Authority Applications(China)
IPC IPC(8): D06P1/649D06P1/673C07D209/20
CPCC07D209/20D06P1/6495D06P1/67341
Inventor 陶方琴
Owner 陶方琴