Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Red disperse dye composition, red disperse dye as well as preparation method and application of red disperse dye

A technology of disperse dyes and compositions, applied in the field of dyes, can solve the problems of long process time and excessive sewage, and achieve the effects of reducing dyeing sewage, high color quantity, and easy acquisition

Active Publication Date: 2021-04-23
ZHEJIANG RUNTU
View PDF2 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] Generally speaking, the best pH range for disperse dyeing is between 4.5 and 5.5, while the pretreatment of polyester fibers must be alkaline scouring and desizing, alkaline fiber opening, and alkaline alkali reduction, and a large amount of water must be used after pretreatment. Cleaning and acid neutralization, long process time and more sewage

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
  • Red disperse dye composition, red disperse dye as well as preparation method and application of red disperse dye
  • Red disperse dye composition, red disperse dye as well as preparation method and application of red disperse dye
  • Red disperse dye composition, red disperse dye as well as preparation method and application of red disperse dye

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0066] With 74 grams of component A shown in formula (1) and 26 grams of component B shown in formula (2-1), 100 grams of lignin 85A and 60 grams of dispersant MF, add 390 grams of water and stir well, grind Disperse and dry to obtain red disperse dyes.

[0067] The specific test method is as follows:

[0068] Take by weighing 2 grams of the red disperse dye of Example 1 and place in 500mL of water to make a disperse dye suspension. Take 5mL of disperse dye suspension and mix it with 95mL of water, adjust the pH of the dyeing bath to 4.5 with acetic acid as a standard sample, then mix 5mL of disperse dye suspension with 95mL of water, and adjust the pH value to 9, 10, 11 with NaOH solution And use 5mL of disperse dye suspension and 95mL of 0.4g / L NaOH solution to adjust the pH value to 12 as the test sample, and at the same time put 2g of polyester fiber into it for high temperature and high pressure dyeing, heat up to 130°C within 35 minutes, and keep it warm for 45 minutes....

Embodiment 2

[0079] Add 57 grams of formula (1) component A and 43 grams of formula (2-2) component B, 100 grams of lignin 85A and 85 grams of dispersant MF, add 428 grams of water, stir well, grind, disperse and dry to obtain red Disperse dyes.

[0080] The specific test method is as follows:

[0081] Take by weighing 2 grams of the red disperse dye of Example 2 and place in 500ml of water to make a disperse dye suspension. Take 5ml of disperse dye suspension and mix it with 95ml of water, adjust the pH of the dyeing bath to 4.5 with acetic acid as a standard sample, then mix 5ml of disperse dye suspension with 95ml of water, adjust the pH value to 9, 10, 11 with NaOH solution And use 5ml of disperse dye suspension and 95ml of 0.4g / L NaOH solution to adjust the pH value to 12 as the test sample. At the same time, put 2g of polyester fiber into it for high-temperature and high-pressure dyeing, heat up to 130°C within 35 minutes, and keep it warm for 45 minutes. Cool to 80°C for sampling....

Embodiment 3-15

[0092] Mix component A and component B additives with water according to Table 5, grind to make liquid dye or spray dry to make red disperse dye.

[0093] Table 5 Unit: Gram

[0094]

[0095] Note: The moisture content in Table 5 is the moisture content of the final dyestuff.

[0096] The red disperse dyes in Table 5 were taken by weighing 2 grams respectively and placed in 500ml of water to make a disperse dye suspension. Take 5ml of disperse dye suspension and 95ml of 0.4g / L NaOH solution to adjust the pH value to 12, and at the same time put 2g of polyester fiber into it for high temperature and high pressure dyeing, heat up to 130°C within 35 minutes, keep it warm for 45 minutes, and cool to 80°C sampling.

[0097] According to GB / T3920-2008, GB / T5718-1997, GB / T3922-2013, GB / T8427-2019 methods to measure its rubbing fastness, sublimation fastness, perspiration fastness, light fastness, the test results are shown in Table 6 Show:

[0098] Table 6: Unit: Grade

[009...

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

No PUM Login to View More

Abstract

The invention provides a red disperse dye composition, a red disperse dye as well as a preparation method and application of the red disperse dye. The red disperse dye composition comprises a component A as shown in a formula (1) in the specification and a component B as shown in a formula (2) in the specification. In the formula (2), R1 is H or C1-C4 alkyl, R2 is C1-C4 alkyl or substituted alkyl, and the substituent of the alkyl is selected from -Ph or -CN. The red disperse dye prepared from the red disperse dye composition is suitable for dyeing under an alkaline condition with the pH value of 9-12, is high in color yield and bright in color light, has various fastness properties basically consistent with those of dyeing under an acidic condition, can be used for dyeing with a polyester fiber pretreatment one-step one-bath method, saves the dyeing cost, reduces dyeing sewage, and greatly improves the production efficiency.

Description

technical field [0001] The invention relates to a red disperse dye composition, a red disperse dye and a preparation method and application thereof, belonging to the field of dyes. Background technique [0002] Generally speaking, the best pH range for disperse dyeing is between 4.5 and 5.5, while the pretreatment of polyester fibers must be alkaline scouring and desizing, alkaline fiber opening, and alkaline alkali reduction, and a large amount of water must be used after pretreatment. Cleaning and acid neutralization, long process time and more sewage. [0003] Therefore, to develop a disperse dye that can be dyed under alkaline conditions can save energy, reduce emissions, and improve work efficiency. At the same time, it can solve the problems of oligomers and stains under acid dyeing conditions. This is a technical problem to be solved urgently. . Contents of the invention [0004] The problem to be solved by the invention [0005] In view of the technical problem...

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): C09B67/22C09B67/38D06P1/18D06P1/19D06P3/54
CPCC09B67/0051C09B67/0079C09B67/008D06P1/18D06P1/19D06P3/54
Inventor 陶彬彬谢子平赵国生顾伟娣景小芳
Owner ZHEJIANG RUNTU
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic, Popular Technical Reports.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com