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Deepening agent and preparation method thereof

A technology of darkening agent and organic solvent, which is applied in the field of multifunctional darkening agent and its preparation, can solve the problems of complex application process and harsh conditions of pro-fiber darkening agent, and achieve improved dye utilization rate, good performance, The effect of simple synthesis process

Inactive Publication Date: 2013-04-17
BEIJING FANBO CHEM
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Fiber-friendly darkening agent is not suitable for dyeing darkening of acid dyes for fur due to complex application process and harsh conditions

Method used

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  • Deepening agent and preparation method thereof
  • Deepening agent and preparation method thereof
  • Deepening agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0018] The preparation of darkening agent comprises steps:

[0019] (1) Put 50 parts of urea and 50 parts of water in the enamel reaction kettle, start stirring, control the temperature at 25-30°C, then put 80 parts of glyoxylic acid into the reaction kettle, and control the temperature at 20-40°C °C and stirred for 30 minutes. Then add 2 parts of sulfuric acid and 3 parts of phosphoric acid, and stir for 3 hours.

[0020] (2) Heating was stopped, and after the temperature in the reactor was reduced to about room temperature, 20 parts of sodium lignosulfonate and 80 parts of ethylene glycol were added to the reactor, and after the addition was complete, stirring was continued for 30 minutes to obtain the target product.

Embodiment 2

[0022] The preparation of darkening agent comprises steps:

[0023] (1) Put 50 parts of urea and 60 parts of water in the reaction kettle, start stirring, control the temperature at 25-30°C, then put 80 parts of glyoxylic acid into the reaction kettle, control the temperature not higher than 35°C, and stir 30 minutes. Then add 2 parts of sulfuric acid and 3 parts of phosphoric acid, and stir for 3 hours.

[0024] (2) Stop heating, and after the temperature in the reactor is lowered to about room temperature, add 15 parts of ammonium lignosulfonate and 60 parts of dipropylene glycol methyl ether into the reactor, and continue stirring for 40 minutes to obtain the target product .

Embodiment 3

[0026] The preparation of darkening agent comprises steps:

[0027] (1) Put 100 parts of dimethyltriamine and 80 parts of water in a reaction kettle with a reflux condenser, start stirring, control the temperature at 25-30°C, then put 180 parts of glycolic acid into the reaction kettle, control The temperature is not higher than 35°C and stirred for 20 minutes. Then 2 parts of sulfuric acid and 4 parts of hydrochloric acid were added, and the reaction was stirred for 2 hours.

[0028] (2) Stop heating, and after the temperature in the reactor is lowered to about room temperature, add 20 parts of sodium lignosulfonate and 60 parts of dipropylene glycol methyl ether into the reactor, and continue stirring for 50 minutes to obtain the target product .

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Abstract

The invention provides a deepening agent which comprises the following components by weight: 10-200 parts of polyamino compounds, 5-200 parts of anionic surfactants, 10-100 parts of organic solvents, 5-100 parts of organic acids and / or inorganic acids, and 20-200 parts of water. The deepening agent of the invention has a simple synthetic process, is green and environment-friendly, and is low in price. The prepared multifunctional deepening agent has good performance, high storage stability, and no peculiar smell, can achieve dyeing effect of 1.15-1.3 times of that obtained by an original dye amount; various fastness is maintained unchanged; the absorption rate is high; and the dye utilization rate is increased. On the other hand, with the deepening agent, the processing difficulty of dyeing waste water is greatly reduced. The deepening agent of the invention is applicable to the deepening of acidic dyes for fur, and has wide market prospects.

Description

technical field [0001] The invention relates to a multifunctional darkening agent and a preparation method thereof. Background technique [0002] At present, the darkening agent products on the market can basically be divided into pro-fiber type and pro-dye type. The fiber-friendly darkening agent is mainly used to modify the surface of the fiber, thereby changing the surface properties of the fiber, improving the affinity of the fiber to the dye, and achieving the purpose of deepening. The dye-friendly darkening agent mainly increases the conjugated double bonds in the dye conjugated system, or connects with polar groups, thereby affecting the distribution of electron clouds in the system and causing the dye to produce a dark effect. [0003] The fiber-friendly darkening agent is not suitable for the dyeing darkening of acid dyes for fur due to the complicated application process and harsh conditions. Since the dye-friendly darkening agent is combined with dyes, the degre...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06P1/642D06P1/46D06P1/62D06P1/39D06P3/30D06P5/00
Inventor 郑超斌郑红超段郑军王启平
Owner BEIJING FANBO CHEM