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Method for modifying and dyeing cotton fibers by adopting tetrabutyl titanate and reactive dyes

A technology of tetrabutyl titanate and reactive dyes, applied in the direction of dyeing, fiber treatment, plant fiber, etc., can solve the problem of poor affinity between nanoparticles and polymer materials, unable to exert the performance of nanoparticles well, and fabrics are resistant to washing. problems such as poor fastness, to achieve the effect of good color fastness to sunlight, saving raw materials, and high utilization of dyes

Active Publication Date: 2015-04-29
江苏唐盛纺织科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

There are two main methods for surface modification of textile materials: one is to prepare functional fibers containing nanoparticles, that is, the nanoparticles are dispersed in the spinning raw materials during the spinning process and spun into fibers. The advantages are long-lasting performance and the disadvantages are The reason is that the affinity between nanoparticles and polymer materials is poor, the dispersion of nanoparticles is uneven, and the agglomeration phenomenon is serious. Most of the nanoparticles are embedded in the fiber matrix, while there are very few nanoparticles on the surface of the fiber, so the properties of nanoparticles cannot be well exerted. performance, the functionality of the material is greatly reduced; the second is to use the post-finishing process to arrange the nanoparticles to the surface of the fiber or fabric, and usually use adhesives and auxiliaries to adhere the nanoparticles to the surface of the fiber or fabric. The problem of nanoparticle agglomeration, and the fabric after finishing is not fast to washing, the wearing performance is greatly affected, and the hand feeling is obviously deteriorated.

Method used

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  • Method for modifying and dyeing cotton fibers by adopting tetrabutyl titanate and reactive dyes
  • Method for modifying and dyeing cotton fibers by adopting tetrabutyl titanate and reactive dyes
  • Method for modifying and dyeing cotton fibers by adopting tetrabutyl titanate and reactive dyes

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0073] Soak 5g of cotton fiber in a sodium hydroxide solution with a mass concentration of 3.0g / L, treat it at 80°C for 50min, then wash it with absolute ethanol and deionized water at 60°C for 10min, and then wash it at 70°C Dry at ℃; weigh 0.05g of reactive Cuilan KN-G dye according to 1% of the cotton fiber mass, measure 150mL of deionized water according to the bath ratio of 1:30, and weigh 7.5g according to the volume of deionized water Sodium sulfate and 1.5g of sodium carbonate, Dissolve reactive Cuilan KN-G dye in deionized water at 40°C, put it into the pretreated cotton fiber for dyeing, add 3.75g of sodium sulfate and keep stirring, add after 10min Another 3.75g of sodium sulfate, continue to stir, after dyeing for 10min, the solution is heated up to 80°C at a rate of 1°C / min, after 10min, add 0.75g of sodium carbonate, after 15min, add another 0.75g of sodium carbonate, and keep stirring for 15min The post-dyeing is completed; according to the mass ratio of cotton ...

Embodiment 2

[0076] Soak 5g of cotton fiber in a sodium hydroxide solution with a mass concentration of 6.0g / L, treat it at 100°C for 30min, then wash it with absolute ethanol and deionized water at 60°C for 20min, and then wash it at 90°C Drying under dry conditions; Weigh 0.1g of reactive Cuilan KN-G dye according to 2% of the cotton fiber mass, measure 250mL of deionized water according to the bath ratio of 1:50, and weigh 17.5g of deionized water according to the volume of deionized water Sodium sulfate and 5g of sodium carbonate, dissolving active Cuilan KN-G dye in deionized water at 50°C, putting it into the pretreated cotton fiber for dyeing, adding 8.75g of sodium sulfate and stirring continuously, and adding another after 15min 8.75g of sodium sulfate, continue to stir, after dyeing for 15min, the solution is heated up to 90°C at a rate of 2°C / min, add 2.5g of sodium carbonate after 15min, add another 2.5g of sodium carbonate after 10min, and keep stirring, dyeing after 10min Com...

Embodiment 3

[0079] Soak 5g of cotton fiber in a sodium hydroxide solution with a mass concentration of 4g / L, treat it at 90°C for 40min, then wash it with absolute ethanol and deionized water at 60°C for 15min, and then wash it at 80°C Drying at the bottom; weigh 0.06g of reactive Cuilan KN-G dye according to 1.2% of the cotton fiber mass, measure 200mL of deionized water according to the bath ratio of 1:40, and weigh 12g of sodium sulfate according to the volume of deionized water and 3g of sodium carbonate, dissolve the active Cuilan KN-G dye in deionized water at 45°C, put it into the pretreated cotton fiber for dyeing, add 6g of sodium sulfate and keep stirring, add another 6g of sodium sulfate after 13min , continue to stir, after dyeing for 13 minutes, the solution is heated to 85°C at a rate of 1.5°C / min, 1.5g of sodium carbonate is added after 13 minutes, and another 1.5g of sodium carbonate is added after 20 minutes, and the dyeing is completed after 20 minutes; The mass ratio of...

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Abstract

The invention discloses a method for modifying and dyeing cotton fibers by adopting tetrabutyl titanate and reactive dyes. The method comprises the steps of preprocessing the cotton fibers, dyeing the preprocessed cotton fibers by using the reactive dyes, preparing a tetrabutyl titanate modified solution, modifying the dyed cotton fibers by adding the modified solution to the cotton fibers in a later period of dyeing, and post-processing the dyed and modified cotton fibers. The method can be used for implementing synchronization of cotton fiber dyeing and nanometer titania loading, and the dyed and modified cotton fibers are excellent in ultraviolet resistance, antibacterial property and sunlight-resistant color fastness.

Description

technical field [0001] The invention belongs to the technical field of functional textile materials, and relates to a method for dyeing and modifying cotton fibers, in particular to a method for modifying and dyeing cotton fibers by using tetrabutyl titanate and reactive dyes. Background technique [0002] Nano-titanium dioxide is a very important inorganic semiconductor material. Its unique ultraviolet shielding ability, photocatalytic activity and color effect make it popular as soon as it comes out. It has broad applications in sun protection, sterilization, wastewater treatment, environmental protection and automobile industry. application prospects. Using the properties of nano-titanium dioxide such as high temperature resistance, refractory decomposition, non-toxicity, long-lasting function and good compatibility with polymers, textile fibers and fabrics with multiple functions can be prepared. The preparation methods of nano titanium dioxide mainly include gas phase ...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M11/46D06P3/66D06P1/38D06P1/673D06M101/06
Inventor 张辉朱林林燕红雁
Owner 江苏唐盛纺织科技有限公司
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