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Anti-creasing agent used for cellulosic fiber fabric and its synthesizing method

A technology of cellulose fiber and anti-wrinkle agent, applied in the field of anti-wrinkle finishing agent and its synthesis, can solve the problems of reduced dye uptake rate of anionic dyes, easy environmental pollution, increased brittleness, etc., and achieves easy control of the reaction process and simple process. Effect

Inactive Publication Date: 2009-04-08
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Due to the existence of chemical bonds between the molecular chains of fabric fibers, the brittleness increases and the overall strength decreases;
[0005] (2) Anti-wrinkle finishing is carried out under acidic conditions, which degrades the fibers and reduces the strength of the fabric
This kind of anti-wrinkle finishing agent has no formaldehyde, but it also has some disadvantages, such as: high catalyst price, easy to pollute the environment, will cause some sulfur dyes and reactive dyes to change color; residual carboxyl groups on the finishing products make anionic dyes The dyeing rate is reduced, and the wet rubbing fastness of cationic dyeing is poor, etc.
The breaking strength of the fabric after finishing is seriously reduced

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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  • Anti-creasing agent used for cellulosic fiber fabric and its synthesizing method
  • Anti-creasing agent used for cellulosic fiber fabric and its synthesizing method
  • Anti-creasing agent used for cellulosic fiber fabric and its synthesizing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0051] Take by weighing 0.5 moles (i.e. 65 grams) of itaconic acid, and weigh itaconic acid, ethanol, diethanolamine according to the ratio of substances to be 1: 0.5: 0.5;

[0052]First, add 65 grams of itaconic acid into the reaction vessel, then add 195 grams of deionized water, stir, gradually raise the temperature to 75°C, add initiator ammonium persulfate accounting for 1% of the mass of itaconic acid, and react at 85°C for 2 hours , to obtain the intermediate product (i); add 0.25 moles (11.5 grams) of ethanol to the reaction vessel containing the intermediate product (i), stir, and slowly add dropwise the concentrated sulfuric acid that accounts for intermediate product (i) mass 3% after 85 ° C , turn on the condensing device, and keep warming up to 130°C, keep the heat for 3 hours, if the acid value of the product remains unchanged, it means that the reaction has reached the end point, and the intermediate product (ii) is obtained; then add 0.25 moles (26.25 grams) of...

Embodiment 2

[0061] Take by weighing 0.5 moles (i.e. 65 grams) of itaconic acid, and weigh itaconic acid, methyl alcohol, and dipropanolamine according to the ratio of substances to be 1: 0.5: 0.5;

[0062] First, 65 grams of itaconic acid were added to the reaction vessel, then 195 grams of deionized water was added, stirred, and the temperature was gradually raised to 75°C, and the initiator ammonium persulfate accounting for 2% of the mass of itaconic acid was added, and reacted at 82°C for 2.5 h, to obtain the intermediate product (i); add 0.25 moles (8 grams) of methyl alcohol in the reaction vessel that fills the intermediate product (i), stir, slowly add dropwise the concentrated product that accounts for intermediate product (i) mass 5% after 80 ℃ Sulfuric acid, turn on the condensing device, and continue to heat up to 120°C, then keep warm for 2.5 hours, if the acid value of the product remains unchanged, it means that the reaction has reached the end, and the intermediate product ...

Embodiment 3

[0071] Take by weighing 0.5 moles (i.e. 65 grams) of itaconic acid, and weigh itaconic acid, propanol, and diisopropanolamine according to the ratio of substances to be 1: 0.5: 0.5;

[0072] First, add 65 grams of itaconic acid into the reaction vessel, then add 195 grams of deionized water, stir, gradually raise the temperature to 75°C, add initiator ammonium persulfate accounting for 3% of the mass of itaconic acid, and react at 80°C for 3 hours , to obtain the intermediate product (i); add 0.25 moles (15.25 grams) propanol in the reaction vessel that fills the intermediate product (i), stir, slowly add dropwise the concentrated product that accounts for intermediate product (i) quality 4% after 90 ℃ Sulfuric acid, turn on the condensing device, and keep warming up to 140°C, keep the heat for 2 hours, if the acid value of the product remains unchanged, it means that the reaction has reached the end, and the intermediate product (ii) is obtained; then put it into the reaction ...

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 an anti-creasing agent used in cellulose fiber fabrics, the structural general formula is expressed as above, and in the formula, a is less than or equal to 20 and more than or equal to 5, b is less than or equal to 20 and more than or equal to 0, c is less than or equal to 20 and more than or equal to 0 and d is less than or equal to 10 and more than or equal to 0, a plus b plus c plus d is less than or equal to 40 and more than or equal to 10, and b ,c and d can not be 0 simultaneously; the average molecular weight Mn is more than or equal to 1300, and K is less than or equal to 3 and more than or equal to 1. The anti-creasing agent is obtained by adopting saturated fatty alcohol and saturated di-fatty alcohol amine for modification after itaconic acid is polymerized. The cellulose fiber fabrics that are finished by the anti-creasing agent have better durable anti-creasing effect, the anti-creasing agent can not release formaldehyde when in use, and the fabrics are less in original breaking strength change.

Description

technical field [0001] The invention relates to an organic polymer for anti-wrinkle finishing of cellulose fibers and a synthesis method thereof, in particular to an anti-wrinkle finishing agent for cellulose fiber fabrics such as cotton, linen, bamboo and viscose and a synthesis method thereof . Background technique [0002] The anti-wrinkle agent can reduce the slip and movement between fiber molecules by strengthening the lateral force between fibers, so that the fabric is not easy to deform. It is an additive that can make fibers return to their original shape after external forces such as extrusion. [0003] The anti-wrinkle agents previously used for cellulose fibers mainly include N-methylolamide compounds, such as 2D resins. Although this type of finishing agent has a good durable anti-wrinkle finishing effect on cellulose fiber fabrics, the fabric is still in the process of finishing. Formaldehyde that is harmful to the human body and the environment will be releas...

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): D06M15/263C08F122/02C08F8/14C08F8/32D06M101/06
Inventor 周向东陶敬泓蔡润之张俊锋
Owner SUZHOU UNIV
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