New dyeing method of active dye taking methylsiloxane as medium

A technology of methyl siloxane and reactive dyes, which is applied in the fields of dyeing, textiles and papermaking, etc. It can solve the problems of toxicity and safety, high equipment requirements, and serious equipment pollution, so as to improve the adsorption rate, enhance the reaction ability, and improve The effect of fixation rate

A technology of methyl siloxane and reactive dyes, which is applied in the fields of dyeing, textiles and papermaking, etc. It can solve the problems of toxicity and safety, high equipment requirements, and serious equipment pollution, so as to improve the adsorption rate, enhance the reaction ability, and improve The effect of fixation rate

CN101922121BActive Publication Date: 2012-09-26ZHEJIANG SCI-TECH UNIV +1
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  • New dyeing method of active dye taking methylsiloxane as medium
  • New dyeing method of active dye taking methylsiloxane as medium
  • New dyeing method of active dye taking methylsiloxane as medium

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] 1. Fabric dyeing pretreatment

[0029] 1g pure cotton fabric with 60g / L Na 2 CO 3 After fully swollen, carry out one-dip and one-roll treatment, control the liquid-carrying rate of about 150%, and wait for dyeing;

[0030] 2. Preparation of reactive dye dispersion system

[0031] Add 0.02g of reactive red M3-BS to 10mlD5 (molecular structure as shown in II) and 0.1g of oleic acid, place in a ball mill and mill for 2-3h to complete surface modification and prepare a stable dye dispersion system for use ;

[0032]

[0033] (II) Molecular formula of D5

[0034] Take a certain amount of the above-mentioned modified reactive dyes and add them to the medium 20mlD5 and stir evenly, control the amount of pure dyes to be 2% of the weight of the fabric to be dyed according to the dyeing concentration requirements, and control the amount of dyeing medium so that the weight of the fabric to be dyed and the total amount of the medium The ratio (bath ratio) is 1:5, fully stir...

Embodiment 2

[0040] 1. Fabric dyeing pretreatment

[0041] 1g pure cotton fabric with 60g / L Na 2 CO 3 After fully swollen, carry out one-dip and one-roll treatment, control the liquid-carrying rate of about 150%, and wait for dyeing;

[0042] 2. Preparation of reactive dye dispersion system

[0043] Add 0.02g of reactive yellow M3-RE to 10ml of D5 and 0.1g of oleic acid, put it in a ball mill and mill it for 2-3 hours to complete the surface modification and prepare a stable dye dispersion system for use;

[0044] 3. Preparation of dye bath

[0045] Take a certain amount of the above-mentioned modified reactive dyes and add them to the medium 20mlD5 and stir evenly, control the amount of pure dyes to be 10% of the weight of the fabric to be dyed according to the dyeing concentration requirements, and control the amount of dyeing medium so that the weight of the fabric to be dyed and the total amount of the medium The ratio (bath ratio) is 1:20, fully stirred, the dye is uniformly dispe...

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 new dyeing method of an active dye taking methylsiloxane as a medium. In the invention, a non-aqueous medium is adopted, which can rapidly close to a fiber surface under the condition of not adding electrolyte for accelerating dye completely, thereby obviously improving adsorption rate and equilibrium adsorption capacity of the active dye, improving fixation rate of the dyeing, completely avoiding the problems of environment and zoology caused by using a large number of inorganic salts, and realizing salt-free dyeing of the active dye in a real meaning. The medium adopted by the invention can be used repeatedly, thereby reducing environmental pollution.

Description

technical field [0001] The invention relates to a method for anhydrous dyeing of textiles with reactive dyes, more specifically, the invention relates to an ecological dyeing method of cellulose fabrics with reactive dyes using methyl siloxane as a medium. Background technique [0002] When dyeing textiles, a large amount of water is consumed, and a large amount of dyeing wastewater is produced, causing some harmful chemical residues to enter the water body, causing serious damage to the ecological environment. For reactive dyes, due to the low dyeing rate in water medium, a large amount of electrolyte is required to promote the dyeing, and because the dye is hydrolyzed in water, the fixation rate is low, and strong soaping is required to remove the floating color, which makes the water more serious. Consumption and pollution of the environment. Today, with the increasing awareness of ecological and environmental protection, the anhydrous and water-less dyeing process with ...

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

Patent Timeline
26 Sep 2012
Publication
CN101922121B
IPC
D06P1/38; D06P1/92; D06P3/66
Inventors
刘今强; 鲁凤鸣