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Crease-resistant dressing liquid for cellulose fabric and its preparing method and use

A cellulose fiber, anti-wrinkle finishing technology, applied in fiber processing, plant fibers, textiles and papermaking, etc., can solve the problems of acid damage of cotton and other cellulose fibers, affecting wearability, large loss of strength, etc., to solve acid damage Problem, good elasticity, easy effect of preparation method

Inactive Publication Date: 2008-08-06
TIANJIN POLYTECHNIC UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, formaldehyde-free finishing agents are much different from traditional N-methylolamide finishing agents in terms of reactivity, price and source of raw materials, so it is difficult to replace such resins (such as 2D or modified 2D) in terms of comprehensive performance. resin, etc.)
[0005] Experiments have shown that after anti-wrinkle finishing with modified 2D resin finishing liquid, the strength of cotton and other cellulose fiber fabrics will be greatly lost, which seriously affects their wearability.
The study found that there are two main reasons for the decline in strength: one reason is that this type of finishing agent forms intramolecular and intermolecular crosslinks inside cotton and other cellulose fibers, which limits the strength of cellulose in cotton and other cellulose fibers. The mobility of macromolecular chain segments causes stress concentration; another reason is that most of the catalysts used in traditional finishing methods are acidic or latent acidic catalysts, and acidic catalysis will cause the degradation of cellulose macromolecular chains, causing cotton and other cellulose Acid damage to fibers
In order to improve the elastic properties of cotton and other cellulose fiber fabrics, the former is unavoidable because of the decrease in strength caused by wrinkle-resistant finishing; as for the latter, there are no literature reports with good solutions.

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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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0025] The preparation method of the finishing liquid of the present invention is as follows: according to the formula of the finishing liquid of the present invention, first slowly add the nano-titanium dioxide of the stated proportion into the water, and stir at a speed of 2000-20000r / min using a high-speed shear stirrer 10-30min, add the dispersant in the stated proportion and continue to stir to obtain a milky white dispersion; then add the resin, catalyst and penetrating agent in the stated proportion, and disperse at high speed for 3-10min to obtain the fiber Anti-wrinkle finishing solution for vegan fabrics.

[0026] The present invention also provides an application of the finishing solution, that is, a wrinkle-resistant finishing method for cellulose fiber fabrics. The wrinkle-resistant finishing method uses the finishing solution described in the present invention, and adopts a two-dipping and two-rolling finishing process to carry out wrinkle-resistant finishing on ...

Embodiment 1

[0032] First, slowly add 0.125g of nano-titanium dioxide (average particle size 80nm) into 230ml of water, use a high-speed shear stirrer, and stir for 30min at a speed of 2000r / min, then add 0.125g of dispersant sodium polyphosphate, continue Stir for 3 minutes to obtain a milky white dispersion; add 20g of non-ironing resin FK-700, 1.5g of catalyst magnesium chloride and 0.25g of penetrant JFC, and disperse for 5 minutes under high-speed shearing to obtain the finishing solution.

[0033]Use the obtained finishing liquid to carry out two dipping and two rolling anti-wrinkle finishing on pure cotton fabrics, the liquid rolling rate is 80%, pre-baking at 80°C for 3 minutes, and then baking at 180°C for 2 minutes.

[0034] In order to compare the experimental results, a blank sample was made in this embodiment at the same time. The blank sample is a 250ml conventional finishing solution prepared by adding the same amount of resin, catalyst and penetrating agent as in the exampl...

Embodiment 2

[0040] Slowly add 0.25g of nano-titanium dioxide (average particle size 20nm) into 220ml of water, use a high-speed shear mixer to stir for 20min at a speed of 10,000r / min, add 0.25g of dispersant SDS and continue stirring for 5min to obtain a milky white dispersion liquid. Then add 30g of no-ironing resin MT-6800, 2.5g of catalyst zinc nitrate and 0.5g of penetrant M, and disperse at high speed for 5 minutes to obtain the finishing solution.

[0041] Use the obtained finishing liquid to double-dip and double-roll anti-wrinkle finishing on linen fabrics, the rolling rate is 80%, pre-baking at 90°C for 2 minutes, then baking at 170°C for 3 minutes, washing with water, and drying. The results of the tests on the finished linen fabrics are shown in Table 2.

[0042] Table 2

[0043] Wrinkle recovery angle / °

[0044] The data in Table 2 shows that after finishing with this finishing solution, the wrinkle recovery angle and strength retention rate of the linen fabric ...

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Abstract

The invention relates to anti-crease finishing liquid of cellulose fiber fabrics, the method for preparing the finishing liquid and the use of the finishing liquid. A formula of the finishing liquid comprises: 2D derivant no-ironing resin 60-160g / l, catalyst 4-8g / l, nanometer titanium dioxide 0.05-2.0g / g, dispersant 0.05-2.0g / l and penetrating agent 1.0-2.0g / l, wherein the 2D derivant no-ironing resin is modified 2D or derivant no-ironing resin, the catalyst is one of magnesium chloride, zinc nitrate, ammonium chloride and aluminum sulfate, the average grain diameter of the nanometer titanium dioxide is 20-100nm, the dispersant is one of sodium polyphosphate, PEG-1000, sodium dodecyl benzene sulfonate, sodium dodecyl sulfonate and tween 80, the penetrating agent is one of penetrating agent JFC, penetrating agent M and penetrating agent T. The method for preparing is realized through mixing with high speed according to the formula of the finishing liquid. The use of the finishing liquid adopts a twice dipping twice rolling fishing technique to carry out anti-crease finishing for the cellulose fiber fabrics.

Description

technical field [0001] The invention relates to textile dyeing and finishing processing technology, specifically a wrinkle-resistant finishing solution for cellulose fiber fabrics and its preparation method, and a wrinkle-resistant finishing method for cellulose fiber fabrics using the wrinkle-resistant finishing solution. The international patent classification number is proposed to be Int.Cl .D06M 13 / 00 (2006.01). Background technique [0002] With the progress of human society, the development of science and technology and the improvement of living standards, people's clothing consumption concept and market demand have undergone significant changes. Judging from the domestic and foreign status quo of market fabric development and research, the focus is mainly on product comfort, health, safety protection and environmental protection. [0003] Natural fibers come from nature, meet people's needs for comfort, environmental protection and health, and are favored by consumer...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/423D06M11/46D06M11/11D06M11/65D06M11/55D06M13/165D06M13/256D06M101/06
Inventor 姚金波赵海洋王刚
Owner TIANJIN POLYTECHNIC UNIV
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