Preparation method of leveling agent for one-bath dyeing of polyester-cotton fabric

A technology of one-bath dyeing and leveling agent, which is applied in the preparation of organic compounds, dyeing methods, preparation of aminohydroxy compounds, etc., can solve problems such as uneven dyeing, and achieve the effect of low foaming and good dyeing reproducibility

Active Publication Date: 2017-02-22
FOSHAN SANSHUI DACHANG PRINTING & DYEING WEAVING CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0007] Purpose of the invention: The present invention provides a preparation method of a leveling agent for polyester-cotton fabric dyeing in the same bath, aiming at the problem of uneven dyeing caused by inconsistent dyeing uptake rates of polyester-cotton fabrics in the same bath, it is specially used for the dyeing of polyester-cotton fabrics The disperse dyes and reactive dyes synthesized a leveling agent of the same structure type that can not only produce level dyeing on polyester dyed with disperse dyes, but also produce level dyeing effect on cotton fabrics dyed with reactive dyes

Method used

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  • Preparation method of leveling agent for one-bath dyeing of polyester-cotton fabric
  • Preparation method of leveling agent for one-bath dyeing of polyester-cotton fabric
  • Preparation method of leveling agent for one-bath dyeing of polyester-cotton fabric

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specific Embodiment 1

[0031] A preparation method of a leveling agent for polyester-cotton fabric dyeing in the same bath, comprising the steps of:

[0032] The first step, polyoxyethylene ether oleate hydroxypropyl dimethyl octadecyl ammonium chloride (N-EO 8 )Synthesis:

[0033] (1) Synthesis of 3-chloro-2-hydroxypropyl dimethyl octadecyl ammonium chloride:

[0034]

[0035] At a constant temperature of 40°C, add 50.0 g of octadecyl tertiary amine and 100 g of distilled water to a 1000 mL four-neck flask with a condenser tube placed in a water bath, slowly add 36% HCl dropwise under stirring, and control the pH value to 2.5. After the dropwise addition is completed, slowly add 44g of epichlorohydrin, continue to stir, and control the temperature at 80°C. After the dropwise addition is completed, perform a constant temperature reaction for 3 hours to completely react the epichlorohydrin, and the reaction ends;

[0036] (2) Synthesis of polyoxyethylene ether oleate hydroxypropyl dimethyl octad...

specific Embodiment 2

[0049] A preparation method of a leveling agent for polyester-cotton fabric dyeing in the same bath, comprising the steps of:

[0050] The first step, polyoxyethylene ether oleate hydroxypropyl dimethyl octadecyl ammonium chloride (N-EO 8 )Synthesis:

[0051] (1) Synthesis of 3-chloro-2-hydroxypropyl dimethyl octadecyl ammonium chloride:

[0052]

[0053] At a constant temperature of 40°C, add 50.0 g of octadecyl tertiary amine and 100 g of distilled water into a 1000 mL four-neck flask with a condenser placed in a water bath, slowly add 36% HCl dropwise under stirring, and control the pH value to 3. After the dropwise addition is completed, slowly add 44g of epichlorohydrin, continue to stir, and control the temperature at 85°C. After the dropwise addition, continue to react at a constant temperature for 3.5 hours to completely react the epichlorohydrin, and the reaction ends;

[0054] (2) Synthesis of polyoxyethylene ether oleate hydroxypropyl dimethyl octadecyl ammoniu...

specific Embodiment 3

[0066] A preparation method of a leveling agent for polyester-cotton fabric dyeing in the same bath, comprising the steps of:

[0067] The first step, polyoxyethylene ether oleate hydroxypropyl dimethyl octadecyl ammonium chloride (N-EO 8 )Synthesis:

[0068] (1) Synthesis of 3-chloro-2-hydroxypropyl dimethyl octadecyl ammonium chloride:

[0069]

[0070] At a constant temperature of 40°C, add 50.0 g of octadecyl tertiary amine and 100 g of distilled water into a 1000 mL four-neck flask with a condenser placed in a water bath, slowly add 36% HCl dropwise under stirring, and control the pH value to 3. After the dropwise addition is completed, slowly add 44g of epichlorohydrin, continue stirring, and control the temperature within the range of 83°C. After the dropwise addition, continue to react at a constant temperature for 3.2 hours to completely react the epichlorohydrin, and the reaction ends;

[0071] (2) Synthesis of polyoxyethylene ether oleate hydroxypropyl dimethyl...

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Abstract

The invention discloses a preparation method of a leveling agent for one-bath dyeing of a polyester-cotton fabric. The method comprises the first step of synthesis of polyoxyethylene ether oleate hydroxypropyl dimethyl octadecyl ammonium chloride (N-EO8) and the second step of mixing according to a formula. According to the prepared leveling agent for one-bath dyeing of the polyester-cotton fabric, a polyoxyethylene ether structure with 8 EOs is adopted, so that cotton dyed on reactive dyes and polyester dyed on disperse dyes both have a good level dyeing effect; the leveling agent has excellent dispersing performance, moderate retarding performance, extremely low foamability, dye bath conditioning performance such as scale inhibition and high stability to acid, alkali, electrolytes (anhydrous sodium sulphate), hard water and temperature, can prevent the situation that temperature change causes dye agglomeration and precipitation, can guarantee that the same hue is dyed gradually during color matching, and has extremely good dyeing reproducibility.

Description

technical field [0001] The invention belongs to the field of fabric treatment, and in particular relates to a preparation method of a leveling agent for polyester-cotton fabric dyeing in the same bath. Background technique [0002] Dyeing is a very old craft. Judging from the unearthed cultural relics, my country, India, and Egypt knew to use certain natural dyes for dyeing as early as prehistoric. People have successively studied the dyeing principle of dyes, but many more effective basic researches came out after the First World War, when cuprammonium fiber, viscose fiber and acetate fiber came out. After the Second World War, all kinds of synthetic fibers continued to appear. [0003] Reactive dyes are widely used in cellulose fiber dyeing due to their advantages of complete color spectrum, bright color and easy dyeing. Although the washing fastness of most reactive dyes is better, when dyeing extra-dark colors with an amount of more than 5%, its dry, wet fastness and ...

Claims

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Application Information

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IPC IPC(8): D06P1/66D06P1/16D06P1/38D06P3/85C07C213/00C07C217/28
CPCC07C213/00C07C213/04D06P1/16D06P1/38D06P1/66D06P3/8252C07C215/08C07C217/28
Inventor 唐菊马文静
Owner FOSHAN SANSHUI DACHANG PRINTING & DYEING WEAVING CO LTD
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