Wet rubbing fastness promoting agent and preparation method thereof

A technology for wet rubbing fastness and improving agent, which is applied in the field of textile auxiliaries and their preparation, can solve the problems of affecting color index, poor hand feeling, increasing processing cost, etc. The effect of rubbing fastness

Active Publication Date: 2011-05-18
WUHU FUCHUN DYEING & WEAVING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The existing wet rubbing fastness improving agent can improve the fastness of the dyed object to a certain extent, but there are still a lot of problems in practical application, which are mainly reflected in: adding a small amount of improving agent in the dyeing process, the effect of improving the fastness is not obvious; If the amount of agent is used, it will affect the original color index of the dyed yarn or fabric, and bring more serious defects; adding a large amount of the existing wet rubbing fastness improving agent will increase the processing cost and cause the dyed yarn to lose its color. Or the hand feel of the fabric becomes worse. In the dyeing process of ultra-soft fibers such as soybean fiber and milk fiber, the hand feel worsens more prominently, which seriously affects the quality of dyed fabrics.
Furthermore, the existing wet rubbing fastness enhancers have poor degradability or are not degradable at all, and discharge into printing and dyeing wastewater will cause more serious environmental pollution problems, and the amount of free formaldehyde released from fabrics after color fixing treatment exceeds the standard

Method used

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  • Wet rubbing fastness promoting agent and preparation method thereof
  • Wet rubbing fastness promoting agent and preparation method thereof
  • Wet rubbing fastness promoting agent and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] The effect of the ratio on the appearance and performance of the synthetic enhancer:

[0024] Add ethylenediamine in the aqueous solution of cyclohexyl hexaphosphate (aqueous solution of cyclohexyl hexaphosphate with a concentration of 50% and a purity of 98%), heat up to 40°C, react for 30 minutes and then cool to room temperature (25 ℃), then,

[0025] The test results are shown in Table 1:

[0026] Table 1 Effect of raw material ratio on performance of synthetic enhancer

[0027]

[0028] It can be seen from Table 1 that with the increase of the proportion of the ethylenediamine component, the appearance of the synthetic enhancer gradually changes, from colorless to yellow, and at the same time gradually changes from transparent to opaque; the viscosity of the enhancer gradually increases; The pH of the synthetic enhancer transitions from acidic to weakly alkaline, and at the same time, the stability of the synthetic enhancer gradually decreases. In summary, th...

Embodiment 2

[0030] Influence of synthesis temperature on performance of enhancer

[0031] Add ethylenediamine to the aqueous solution of cyclohexyl hexaphosphate, raise the temperature, react for 30 minutes and then cool to room temperature (25°C). The molar ratio of cyclohexyl hexaphosphate to ethylenediamine is 1:3 .

[0032] The test results are shown in Table 2

[0033] Table 2 Effect of synthesis temperature on the performance of enhancer

[0034]

[0035]

[0036] It can be seen from Table 2 that under the conditions of determining the proportion and reaction time, the reaction temperature has little influence on the viscosity, pH value and stability of the synthetic enhancer, but has a greater impact on the appearance of the enhancer. As the temperature rises, the color of the enhancer gradually deepens. The color deepening of the lifting agent is not conducive to the fixation of dyed yarn or fabric, especially for light-colored fabrics, the color of the lifting agent will...

Embodiment 3

[0038] The effect of reaction time on the performance of synthetic enhancers.

[0039] Add ethylenediamine to the aqueous solution of cyclohexyl hexaphosphate, raise the temperature to 40°C, and after a period of reaction, cool to room temperature (25°C). The molar ratio of cyclohexanehexaphosphate to ethylenediamine It is 1:3.

[0040] The test results are shown in Table 3

[0041] Table 3 Effect of reaction time on performance of enhancer

[0042]

[0043] It can be seen from Table 3 that: under the determined proportioning and reaction temperature, only when the reaction time is 15min, the viscosity of the synthetic enhancer is low, indicating that the reaction is not sufficient; when the reaction time increases to 30min or longer, the synthetic enhancer The appearance, viscosity, pH value, and stability of the agent did not change much, indicating that the reaction time had little effect on the performance of the enhancer. From the perspective of energy saving, the r...

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 wet rubbing fastness promoting agent and a preparation method thereof. The promoting agent has a structural formula disclosed in the specification, wherein m is 100-5,000, n is 1-6, and R' is -CH2-CH2-. Compared with the prior art, the promoting agent structure is rich in active groups of phosphamide, and the like, shows weak cation properties and can combine and react with water soluble groups, so that hydrophilic groups of dye are closed so as to form infusible lakes on a fabric; meanwhile, the promoting agent also can react and combine with active groups of fabric macromolecules so as to improve the rubbing fastness; the promoting agent consists of meshed macromolecules, and the film forming property is strong; and after drying treatment, a flexible and tough film can be formed on the surface of the fabric.

Description

technical field [0001] The invention belongs to textile auxiliaries and a preparation method thereof, in particular to a wet rubbing fastness improving agent and a preparation method thereof. Background technique [0002] Wet rubbing fastness is an important index to measure the dyeing performance of yarns and fabrics. In conventional direct, reactive, acidic and other water-soluble dyeing processes, if no wet rubbing fastness enhancer is added, the dyed yarn or fabric The wet rubbing fastness is extremely poor, which is far from the requirements of the third-level fastness. The existing wet rubbing fastness improving agent can improve the fastness of the dyed object to a certain extent, but there are still a lot of problems in practical application, which are mainly reflected in: adding a small amount of improving agent in the dyeing process, the effect of improving the fastness is not obvious; If the amount of agent is used, it will affect the original color index of the ...

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
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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06P5/08C08G73/02
Inventor 王宗乾何培富孙瑞霞牧永权
Owner WUHU FUCHUN DYEING & WEAVING
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