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

A kind of inorganic pigment dyeing method of cotton textile

A technology for cotton textiles and inorganic pigments, applied in the field of textile printing and dyeing, can solve the problems of low rubbing fastness, low dyeing rate, long time consumption, etc., and achieve the effects of enhancing interfacial bonding force, improving easy agglomeration and improving dispersibility.

Active Publication Date: 2022-05-17
WUHAN TEXTILE UNIV
View PDF7 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the disadvantages of this method are: the dyeing speed of natural mineral fuels is slow, and the dyeing rate is not high, and there are problems such as poor compatibility between inorganic mineral dyes and the surface of fabric fibers, and low rubbing fastness.
However, the disadvantages of this method are: the dyeing process is complicated and time-consuming, the dye utilization rate is low, and the dyeing rate is low and the color fastness of the dyed textile is not high.

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
  • A kind of inorganic pigment dyeing method of cotton textile
  • A kind of inorganic pigment dyeing method of cotton textile
  • A kind of inorganic pigment dyeing method of cotton textile

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A method for dyeing cotton textiles with inorganic pigments, comprising the steps of:

[0047] S1. Preprocessing:

[0048] S11. Preparation of washing solution: place the surfactant in the aqueous solution, mix it evenly and prepare the washing solution, wherein the concentration of the surfactant is 0.3g / L, and the stirring time is 25min;

[0049] S12, pretreatment of cotton fabrics: according to the bath ratio of 1:20, the cotton fabrics are placed in the washing liquid for washing treatment, and then dried to obtain the washed cotton fabrics, wherein the washing temperature is 60° C., and the washing time is 40 minutes. The drying temperature is 60°C, and the drying time is 40 minutes.

[0050] S2. Modification of inorganic pigment nanoparticles: Put 8g of cobalt blue nanoparticles into 80mL of acetone, stir for 5min, add 4mL of silane coupling agent KH570, stir for 12 hours, filter, wash with acetone for 5 times, and vacuum at 60°C Dry for 6 hours, take out and gr...

Embodiment 2-4

[0058] The difference from Example 1 is that in step S4, the setting of the dyeing temperature is different, and other steps are the same as in Example 1, and will not be repeated here.

[0059] Table 1 is the setting of the dyeing temperature and the performance parameters of the dyed cotton fabric in Examples 1-4

[0060] Example Dyeing temperature (℃) K / S value Example 1 200 6.6 Example 2 140 2.7 Example 3 180 4.5 Example 4 220 6.7

[0061] It can be seen from Table 1 that the higher the dyeing temperature of high boiling point solvent rapeseed oil, the higher the utilization rate of the dye and the larger the K / S value.

Embodiment 5-7

[0063] The difference from Embodiment 1 is that in step S4, the setting of the dyeing time is different, and other steps are the same as in Embodiment 1, and will not be repeated here.

[0064] Table 2 is the setting of dyeing time in embodiment 1 and embodiment 5-7 and the performance parameter of cotton fabric after dyeing

[0065]

[0066]

[0067] It can be seen from Table 2 that as the dyeing time increases, the K / S value presents a trend of first increasing and then decreasing. This is because when the modified cotton fabric is placed in a high-temperature oil bath for too long, the molecular structure of cellulose in the fiber will be destroyed to a certain extent, thereby affecting the dyeing performance.

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
concentrationaaaaaaaaaa
particle diameteraaaaaaaaaa
Login to View More

Abstract

The invention provides an inorganic pigment dyeing method for cotton textiles. First, the cotton textiles are placed in the washing liquid for washing and drying pretreatment; then, the silane coupling agent is added to the organic solvent dispersion of inorganic pigment nanoparticles for modification reaction to obtain modified inorganic pigment nanoparticles; then, The initiator ammonium persulfate is added to the modifier solution, and then the modified inorganic pigment nanoparticles and the pretreated cotton textiles are added for coloring treatment to obtain pre-dyed cotton textiles; finally, the pre-dyed cotton textiles are put into Dyeing in a high boiling point solvent, followed by washing and drying to obtain cotton textiles dyed with inorganic pigments. In the dyeing method provided by the invention, under the condition of high temperature, normal pressure and high boiling point solvent bath dyeing, the cotton fiber modified by inorganic pigment is dyed, so as to realize fast and efficient dyeing of cotton fabric with inorganic pigment and high color fastness, which improves the Dye utilization.

Description

technical field [0001] The invention relates to the field of textile printing and dyeing, in particular to an inorganic pigment dyeing method for cotton textiles. Background technique [0002] Cotton fabric has become one of the most commonly used fabrics due to its excellent wearing performance. It is widely used in clothing fabrics, decorative fabrics and industrial fabrics. It is widely favored by consumers and is the largest dyeing and finishing product for printing and dyeing enterprises. The most important dyes in cotton fabrics are reactive dyes. The active groups on the dye molecules react with the hydroxyl groups on the cotton cellulose to chemically bond with the cellulose, so the binding fastness is high. However, the hydroxyl groups on the side chains of the cellulose fiber macromolecules make the fabric fibers negatively charged in the solution, and the water-soluble groups contained in the reactive dyes exist in the dye solution in the form of anions. Therefore...

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 Patents(China)
IPC IPC(8): D06P1/00D06P1/92D06P3/60D06P5/04D06P5/20C08F292/00C08F220/14
CPCD06P1/00D06P1/928D06P1/0028D06P5/04D06P5/2066D06P3/60C08F292/00D06P2001/906C08F220/14
Inventor 夏良君周思婕付专张春华盛丹王运利徐卫林
Owner WUHAN TEXTILE UNIV
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