Nanoscale foam dyeing and finishing functional solution and dyeing and finishing process

A functional liquid and nanobubble technology, applied in the field of textile dyeing, can solve the problems of fiber strength decline, medium base liquid pollution, resource consumption, etc., and achieve the effect of reducing the use of high-pressure steam, reducing the amount of use, and improving safety.

Inactive Publication Date: 2018-12-21
SUZHOU UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Long-term high-temperature treatment not only brings great energy consumption, alkali agent consumption and production safety problems, but also the pollution of the medium base liquid caused by sodium hydroxide and dyeing auxiliaries, and it is necessary to neutralize the printing and dyeing waste...

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0029] Use direct current to electrolyze water in the electrolyzer, and the electrolysis conditions are 6V, 25A. At the same time, a semipermeable ion exchange membrane is used to filter the electrolyzed water to produce alkaline ionized water with a pH value of 12.5 and a reduction potential of -900mV.

[0030] Add the above-mentioned alkaline ionized water into the dye of the fabric, and add oxygen nano bubbles at the same time. Oxygen nano-bubbles are prepared by a high-pressure generator, thereby preparing a nano-bubble dyeing and finishing functional liquid. The dyes are reactive dyes. The concentration of oxygen nanobubbles in the nanobubble dyeing and finishing functional liquid is 150 million / mL.

Embodiment 2

[0032] Use direct current to electrolyze water in the electrolyzer, and the electrolysis conditions are 6V, 25A. At the same time, a semipermeable ion exchange membrane is used to filter the electrolyzed water to produce acidic ionized water with a pH value of 2.6 and an oxidation potential of 550mV.

[0033] Add the above-mentioned alkaline ionized water into the dye of the fabric, and simultaneously add nano-bubbles mixed with nitrogen and oxygen. Oxygen nano-bubbles are prepared by a high-pressure generator, thereby preparing a nano-bubble dyeing and finishing functional liquid. The dyes are vat dyes. The concentration of oxygen nanobubbles in the nanobubble dyeing and finishing functional liquid is 260 million / mL.

Embodiment 3

[0035] Cotton fabric was dyed using the nanobubble dyeing and finishing functional solution in Example 1. The specific operation is as follows:

[0036] Weigh a cotton fabric with a weight of 3g, add a certain amount of water according to the bath ratio of 1:30, then add reactive yellow 3RS according to 2% (o.w.F), add salt after dissolving according to the concentration of 10g / L and shake evenly, according to 10g / L Calculate the required nano-functional water in L, weigh it, add it to the Erlenmeyer flask, and stopper the bottle. Place it in an oscillating dyeing machine, dye it at 50°C for 50 minutes, take out the dyed cotton fabric, wash it with water and soap it. After the soap is boiled, rinse it with water several times and dry it, and test the color depth K / S and other data.

[0037]From the test results, it can be seen that the K / S value of its color depth reaches 7.67, which is greatly improved compared with traditional dyeing and non-alkali dyeing, which shows that...

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Abstract

The invention relates to a preparation method for a nanoscale foam dyeing and finishing functional solution. Nanoscale bubbles are added into aqueous alkaline solution/acidic solution, and thereby thenanoscale foam dyeing and finishing functional solution is obtained; when alkaline ionized water is contained in the solution, the pH value is 9 to 13.5, and the reduction potential is negative 450 mV to negative 1300 mV; when acidic ionized water is contained, the pH value is 2.6 to 6.5, and the oxidation potential is 550 mV to 900 mV. The invention further provides a dyeing and finishing process: the nanoscale foam dyeing and finishing functional solution is used for dyeing a fabric, and the fabric is then rinsed once or three times; and naturally reclaimable nanoscale foam functional wateris adopted to carry out cellulose fiber pretreatment and dyeing treatment. The traditional processes (such as long-time high-temperature desizing, scouring and bleaching, mercerization and the like required by cellulose fibers) which use a great deal of caustic soda can be optimized, moreover, a great deal of acid and alkali used in traditional dyeing can be replaced, defects, such as easy fiberstrength reduction, silk injury and heavy pollution, are overcome, and a high-fidelity dyeing effect of alkali-free energy-saving emission-reducing production is achieved.

Description

technical field [0001] The invention relates to the technical field of textile dyeing, in particular to a nanobubble dyeing and finishing functional liquid and a dyeing and finishing process. Background technique [0002] Reactive dyes can be used not only for cellulose fibers such as cotton and linen, but also for dyeing protein fibers such as silk and wool. They are the most widely used dyes. In order to achieve good dyeing properties of the most widely used cellulose fibers such as cotton and hemp, the traditional technology usually uses water as the medium, and uses a large amount of caustic soda and surfactant compound solution to dye the dye at a temperature as high as 100°C or even under high temperature and high pressure. It carries out pretreatment and scouring processing to remove natural impurities such as waxy substances, pectin substances, nitrogenous substances, cottonseed hulls and natural pigments contained in cellulose fibers such as cotton and hemp, so that...

Claims

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Application Information

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IPC IPC(8): D06P1/00
CPCD06P1/0016
Inventor 王文利王岩王启明
Owner SUZHOU UNIV
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