A kind of liquid coloring agent for polyester fiber dope coloring and preparation method thereof
A technology of dope dyeing and polyester fiber, applied in the chemical characteristics of fiber, single-component polyester rayon, adding pigment in spinning solution, etc. Reduce pigment tinting strength and other issues to achieve the effect of broadening the selection range, reducing production process links, and high pigment utilization.
Active Publication Date: 2019-03-08
SUZHOU SUNMUN TECH CO LTD
View PDF2 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, there are three disadvantages in using masterbatches to color polyester fibers: 1) During the production of masterbatches, the dispersion of pigments in the carrier is completely dispersed by mechanical shear between the screws. Therefore, on the one hand, polyester color The production of masterbatches has low processing precision for pigments. On the other hand, there are great requirements for the dispersibility of pigments themselves, which limits the selection range of pigments; 2) Color masterbatches for polyester fibers such as polyester are easy to absorb water and get wet Avoid hydrolysis, must be dried before use
However, since the boiling point of ethylene glycol is only 197°C under normal pressure, and the polyester polymerization reaction has a high temperature above 210°C, when ethylene glycol-based pigment paste is added during the polymerization process, ethylene glycol evaporates quickly, and the pigment May agglomerate momentarily, which can cause dispersion problems of the colorant in the polymer and reduce the tinting strength of the pigment
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 moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0028] The present invention will be further described below in conjunction with specific examples.
[0029] Preparation of liquid colorants:
[0030] According to the dosage of each component given in Table 1, a liquid colorant was prepared. Its preparation process is as follows: 1) Add the dispersant in the prescribed amount into the liquid dispersion medium, stir evenly on a high-speed mixer at a speed of 800-3000 rpm, then add the pigment, and pre-disperse for 15-120 minutes to obtain a pre-dispersion , wherein, Examples 1 to 4 and Comparative Examples 1 to 3 were stirred at a speed of 1500 rpm and pre-dispersed for 60 minutes, Example 5 was stirred at a speed of 800 rpm and pre-dispersed for 120 minutes, and Example 6 was used Stir at a speed of 3000 rpm, and pre-disperse for 15 minutes; 2) Grind the pre-dispersion obtained in step 1 through a horizontal sand mill for 5-10 times to obtain a liquid dispersion, wherein Examples 1-4 and Comparative Examples 1-3 grinding 8 ...
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
Login to View More Abstract
The invention discloses a liquid colorant for coloring polyester fiber stock solution. The liquid colorant comprises the following components by weight percent: 65 to 95% of liquid dispersion medium, 3 to 30% of colorant, 2 to 5% of dispersing agent and the like. According to the liquid colorant disclosed by the invention, a pigment or a dye and a liquid carrier are processed by dispersion equipment, such as grinding by a grinding machine and the like; a dispersion degree and a pigment utilization rate are high; the liquid colorant has the advantages of high storage stability, good coloring effect and the like.
Description
technical field [0001] The invention relates to the technical field of a liquid colorant and a preparation method thereof, in particular to a liquid colorant for polyester fiber stock solution coloring and a preparation method thereof. Background technique [0002] Polyester fiber is a polyester obtained by polycondensation of dibasic acid and dibasic alcohol, and then a synthetic fiber obtained by melt spinning. Polyester fiber is widely used in many fields such as clothing, decoration, toys, etc., and is the largest output of synthetic fibers. varieties. [0003] The coloring of polyester fibers can be divided into two categories: post-spinning coloring and pre-spinning coloring. Post-spinning dyeing generally uses dyes to dye polyester fibers in aqueous solution under high temperature conditions, which has the disadvantages of high energy consumption and large waste water discharge. Pre-spinning coloring is also called stock solution coloring. It is to add colorant to t...
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
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): D01F1/04D01F1/06D01F1/10D01F6/92
CPCD01F1/04D01F1/06D01F1/10D01F6/92
Inventor 吕仕铭杜长森徐利伟梅成国
Owner SUZHOU SUNMUN TECH CO LTD