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A kind of darkening agent for nylon fabric and preparation method thereof

A darkening agent and fabric technology, applied in dyeing, textiles and papermaking, etc., can solve the problems of low refractive index, high cost, and unsatisfactory darkening effect of fluororesin, so as to improve hand feeling, increase added value, improve affinity The effect of water performance

Active Publication Date: 2022-03-15
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Fluorine resin has a low refractive index and good darkening effect, but the cost is high; silicone resin is relatively low in cost, but the darkening effect is not ideal

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
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  • A kind of darkening agent for nylon fabric and preparation method thereof
  • A kind of darkening agent for nylon fabric and preparation method thereof
  • A kind of darkening agent for nylon fabric and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0025] This embodiment provides a deeper agent for a nylon fabric, and the preparation method thereof is as follows:

[0026] 1. Add 100 g of polyether amine ED400, 24.3 g of adipic acid to the first reaction vessel with a stirrer and a condensation reflow device, open the condensation reflow device and a stirrer, and 1.86 g of subcatehite, start Heating, the temperature was raised to 175 ° C, then 2.48 g of phosphite triphenyl ester was added, and the temperature was continued to 220 to 230 ° C, and after 1 to 2 hours of the insulation reaction, the intermediate product I was obtained.

[0027] 2. A 150 g of octylcryline tetra siloxane, 50 g of trifluoropropylcline trialoxane and 20 g of epoxy double head are added to a second reaction vessel with a stirrer, and the agitator is turned on. The temperature was raised to 70 ° C, adding 0.18 g of tetramethylammonium hydroxide, continued to heat up 95 ° C, after the insulation reaction for 5 h, resulting in an intermediate product II....

Embodiment 2

[0034] 1. A 150 g of polyether amine ED400, 70.5 g of polyether acid is added to the first reaction vessel with a stirrer and a condensate reflux device, open the condensation reflow device and a stirrer, add 4.41 g of subcateh with sodium, start Heating, the temperature was raised to 175 ° C, then 3.3 g of phosphite triphenyl ester was added, and the temperature was continued to 220 to 230 ° C, and after 1 to 2 hours of insulation reaction, the intermediate product I was obtained.

[0035] 2. 200 g of octylbarciomethyloxane, 100 g of trifluoropropylcline trialoxane and 29.8 g of epoxy double head are added to a second reaction vessel with a stirrer to open the stirrer. The temperature was raised to 70 ° C, 0.34 g of tetramethyl omodium hydroxide was added, and the temperature was warmed to 95 ° C, and the insulation reaction was allowed to obtain an intermediate product II.

[0036] 3. Add 300 g of intermediate II, 29.5 g of intermediates I and 141.2 g isopropyl alcohol to a thir...

Embodiment 3

[0042] 1. The 200 g of polyether amine ED600, 67.3 g of polyether acid is added to the first reaction vessel with a stirrer and a condensation reflow device, and the condensation reflow device and a stirrer are opened, and 4 g of sub-phosphite, start heating. The temperature rose to 175 ° C, then 4 g of triphenyl phosphite, continued to heat up to 220 to 230 ° C, after 1 to 2 hours of insulation reaction, resulting in an intermediate product I.

[0043] 2. 300 g of octylbarciomethiloxane, 300 g of trifluoropropylcyclo-trilate and 59.7 g of epoxy double head is added to a second reaction vessel with a stirrer to open the stirrer. The temperature rose to 70 ° C, 0.66 g of tetramethylammonium hydroxide, continued to heat up to 95 ° C, after the insulation reaction for 5 h, resulting in an intermediate product II.

[0044] 3. Add 400 g of intermediates II, 80.2 g of intermediates I and 320g isopropanol to a third reaction vessel equipped with a stirrer and condensate reflow device, op...

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
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Abstract

The invention discloses a darkening agent for nylon fabric and a preparation method thereof. The darkening agent was synthesized from organic dicarboxylic acid, epoxy double head, polyether amine, octamethylcyclotetrasiloxane and trifluoropropylmethylcyclotrisiloxane. The fluorine-containing polysiloxane segment in the molecular structure of the darkening agent provided by the invention can effectively reduce the amount of light reflection on the surface of the nylon fabric after finishing, thereby increasing its apparent depth. At the same time, the polyether segment in the molecular structure can Improve the hydrophilic property of nylon fabric after finishing. In addition, according to the principle of structural similarity, the polyamide segment in the molecular structure of the darkening agent can form a eutectic with the molecular segment of nylon (polyamide fiber) under high-temperature baking conditions, and the nylon fabric after finishing has a washable Enhanced effect.

Description

Technical field [0001] BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to the field of printing and dyeing aid, and more particularly to a deepens for a nylon fabric and a preparation method thereof. Background technique [0002] With the continuous improvement of living standards, people's requirements for dark fabrics are getting higher and higher, but are constrained by the balance of fiber dyeing and dyeing fastness, and the fabric has a lot of no The solid dye makes the fabric dark color, not enough color fastness, and has a large amount of printing and dyeing water after dyeing. With the continuous improvement of environmental protection requirements, the cost of printing and dyeing wastewater is also increasing. Therefore, it is very important to reduce the amount of dye amount and reduce production costs by using a deepens. [0003] Typically, a deepens is a low refractive index resin, which is filled with film formation in the fibers, ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06P5/08C08G77/24C08G65/332
CPCD06P5/08C08G77/24C08G65/3322
Inventor 周向东吴凤俣
Owner SUZHOU UNIV
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