A kind of method of continuous heat-melt dyeing of polyester

A continuous, hot-melt technology, which is applied in the dyeing process and the field of continuous hot-melt dyeing of polyester, can solve problems such as poor color brightness, viscosity-reducing effect of dispersant MF, low dye transfer rate, and poor color fastness.

Active Publication Date: 2018-01-05
SUZHOU UNIV
View PDF15 Cites 4 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

2) The viscosity-reducing effect of dispersant MF and the dye transfer rate are low. Disperse dyes contain a large amount of dispersant MF. The lower the dye strength or strength, the higher the content of dispersant MF.
Compared with disperse dyes, paint has the advantage of non-swimming, but its less hue, poor color brightness and poor color fastness are still the bottlenecks restricting the development of this technology

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

Examples

Experimental program
Comparison scheme
Effect test

Synthetic example

[0062] Preparation of prepolymer

[0063]Mix 13.5g of butyl acrylate, 4.0g of styrene, 5.5g of propylene glycol block polyether L-64, 2.2g of isomeric tridecyl alcohol polyoxyethylene ether (8) and 64.8g of water, and fully stir to form an emulsion; The mass fraction is 1.0g of ammonium persulfate dissolved in 9.0g of water at room temperature, and fully stirred to form an initiator solution; take half of the mass of the emulsion and half of the mass of the initiator solution and add them to the reaction device of the three-mouth sesame cake, stir while heating, and heat up to 75°C. When the temperature reaches 75°C, slowly add the remaining emulsion and the initiator solution dropwise under stirring state, and the dropping time is 100min. After the dropwise addition was completed, the stirring was continued for 110 min to obtain prepolymer A1.

[0064] Mix 15.0g of butyl acrylate, 6.0g of styrene, 7.5g of propylene glycol block polyether L-64, 4.5g of isomeric tridecyl alco...

Embodiment 1

[0075] First mix 3.0g liquid disperse dye A, 0.5g prepolymer A1, 0.3g prepolymer B1, 0.3g prepolymer C1, 0.2g H90 synthetic thickener, 0.05g penetrant JFC and 95.65g water, stir well , to prepare a staining solution. Then the polyester fabric is dipped with the dyeing solution, two dips and two pads, the padding rate is 80%, and the padding temperature is room temperature. The padded polyester fabric is dried and cured on a heat setting machine, the curing temperature is 185° C., and the curing time is 90 seconds. Finally, the polyester fabric was washed in a washing machine at a temperature of 60° C. and a washing time of 10 minutes; after the washing was completed, it was dried on a drying device to obtain polyester dyed products.

Embodiment 2

[0077] Mix 3.0g liquid disperse dye C, 1.0g prepolymer A2, 0.5g prepolymer B2, 0.5g prepolymer C2, 0.4g PTF-A synthetic thickener, 0.2g penetrant JFC and 94.40g water, stir Homogenously, a staining solution is prepared. Then pad the polyester fabric with the dyeing solution, two dips and two pads, the liquid padding rate is 85%, and the padding temperature is room temperature. The padded polyester fabric is dried and cured on a heat setting machine, the curing temperature is 195° C., and the curing time is 50 seconds. Finally, the polyester fabric was washed in a washing machine at a temperature of 60° C. and a washing time of 10 minutes; after the washing was completed, it was dried on a drying device to obtain polyester dyed products.

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
particle diameteraaaaaaaaaa
glass transition temperatureaaaaaaaaaa
Login to view more

Abstract

The invention discloses a method for continuous heat-melt dyeing of polyester, which comprises the steps of padding the polyester with a dyeing solution, drying, baking and washing with water. The dyeing solution includes liquid disperse dye, prepolymer A, prepolymer B, prepolymer C, synthetic thickener and penetrant. The advantage of this method is that the uniformity of dyeing is good, the dye does not migrate during drying, the relative fixation rate of the dye is high, the color fastness is excellent, and there is almost no discharge of colored wastewater, and the processing equipment is all conventional equipment. Continuous dyeing processing technology for energy saving and emission reduction.

Description

technical field [0001] The invention belongs to the technical field of textile printing and dyeing, and in particular relates to a method for continuous hot-melt dyeing of polyester, which is used for the dyeing process of polyester fabric with low water consumption, energy saving and emission reduction. Background technique [0002] Generally speaking, polyester fabrics are mostly dyed in batches, continuous hot-melt dyeing is not suitable for dyeing pure polyester fabrics, and hot-melt dyeing of polyester / cotton blended or interwoven fabrics is a conventional dyeing technique. The main reasons why pure polyester fabrics do not use hot-melt dyeing are: 1) The dye is prone to migration and dyeing is uneven. The slightly water-soluble disperse dye is temporarily fixed on the surface of the fiber through continuous pad dyeing. During the drying process, due to The hydrophobic and smooth surface structure of polyester fiber lacks strong binding force with slightly water-soluble...

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): D06P3/54D06P1/16D06P1/52
CPCD06P1/16D06P1/525D06P3/54
Inventor 陈娟朱亚伟
Owner SUZHOU UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap