CN105177981A - Low-temperature bleaching pretreatment process of cotton and wool fabric - Google Patents

Abstract

The invention discloses a low-temperature bleaching pretreatment process of cotton and wool fabric. According to the low-temperature bleaching pretreatment process of the cotton and wool fabric, the dyeing time is short, the temperature requirement is low, and the bleaching effect is good. The low-temperature bleaching pretreatment process of the cotton and wool fabric comprises the steps that normal temperature water is added into a dye vat after yarn is put into the dye vat, a hydrogen peroxide activating agent and hydrogen peroxide are added simultaneously, and then the dye vat is heated to make the water temperature increased to 80 DEG C; the heated water is cooled to the normal temperature state, and a deoxygenization enzyme is added to the normal temperature water; the water is heated again, and the temperature is increased to range from 40 DEG C to 45 DEG C; the water is cooled to the normal temperature, and then anhydrous sodium sulphate, dye auxiliaries and dye are added to the water; heat preservation is conducted for 10 min after the water temperature is increased to 60 DEG C, then alkali is added to the water to make the PH value of the water kept between 11 and 12, and heat preservation is conducted for 30 min at the temperature of 60 DEG C after the alkali is added; the water is cooled to the normal temperature, and the yarn is taken out for sample comparison. The low-temperature bleaching pretreatment process of the cotton and wool fabric has the advantages of being rapid in dyeing, low in temperature requirement and the like.

Description

Cotton, hairs cold bleaching pre-treatment process

Technical field

The present invention relates to Colour Difference field, especially a kind of cotton for yarn dyeing, hairs cold bleaching pre-treatment process.

Background technology

The main production raw material cotton, woll fabrics is our ordinary clothing, go to toward needing to carry out bleaching to cotton, hairs making clothing, and existing bleaching is when using hydrogen peroxide, need temperature increase to 100 DEG C, the patent No. is the bleaching pre-processing process that patent discloses a kind of pure cotton padding cloth of 201010139779.7, it is characterized in that: adopt pH value at the mixed bleach solution containing scouring enzyme of 10-11, then at the temperature of 100-101 DEG C, lining cloth gas is steamed 65 minutes, and then to the lining cloth clear water of bleaching with the temperature open washing three times of 85-90 DEG C.Because needs rise to high temperature, therefore often need in process of production to consume the more energy, increase the production time.

Summary of the invention

The object of the invention is to overcome the deficiencies in the prior art, a kind of dyeing time is short, temperature requirement is low, bleaching effect is good cotton, hairs cold bleaching pre-treatment process are provided.

In order to achieve the above object, the one designed by the present invention is cotton, hairs cold bleaching pre-treatment process, and its processing process is:

(1) normal-temperature water is added dye vat after putting into dye vat by yarn, adds Activation of Hydrogen Peroxide Solution agent and hydrogen peroxide simultaneously, then heat to dye vat in dye vat, makes the water in dye vat be warming up to 80 DEG C and insulation 30-35min;

(2) by the water for cooling after heating to normal temperature state, add in normal-temperature water except oxygenase, eliminate hydrogen peroxide unnecessary in water;

(3) add except after oxygenase, again water is heated, intensification 40-45 DEG C, and be incubated 15min;

(4) by the water for cooling of 40-45 DEG C to normal temperature, then in water, add glauber salt, color additive, dyestuff successively;

(5) water temperature be warming up to 60 DEG C again and be incubated 10min, then in water, adding alkali, make the pH value of water remain on 11-12, after adding alkali, being incubated 30min at 60 DEG C again;

(6) water is down to normal temperature, takes out yarn and carry out sample.

Cotton provided by the invention, hairs cold bleaching pre-treatment process, use Activation of Hydrogen Peroxide Solution agent in process of production, make hydrogen peroxide 80 DEG C time, just can reach the oxidability of needs, bleaching is carried out to cotton, woll fabrics, 15-20 DEG C is reduced than original processing temperature, its process time can be reduced simultaneously, greatly enhance productivity; Therefore, it has the features such as dyeing is quick, temperature requirement is low.

Detailed description of the invention

The invention will be further described below.

Embodiment one:

The one that the present embodiment describes is cotton, hairs cold bleaching pre-treatment process, its processing process is: after first yarn being put into dye vat, water is added dye vat, in dye vat, add Activation of Hydrogen Peroxide Solution agent and hydrogen peroxide simultaneously, then dye vat is heated, make the water in dye vat be warming up to 80 DEG C and insulation 30min; Then by the water for cooling after heating to normal temperature state, add in normal-temperature water except oxygenase, eliminate hydrogen peroxide unnecessary in water; Adding after except oxygenase, again water being heated, heating up 43 DEG C, and being incubated 15min; By the water for cooling of 43 DEG C to normal temperature, then in water, add glauber salt, color additive, dyestuff successively; Water temperature is warming up to 60 DEG C again and insulation 10min, then in water, adds alkali, make the pH value of water remain on 11, after adding alkali, be incubated 30min at 60 DEG C again; Finally water is down to normal temperature, takes out yarn and carry out sample.

Embodiment two:

The one that the present embodiment describes is cotton, hairs cold bleaching pre-treatment process, its processing process is: after first yarn being put into dye vat, water is added dye vat, in dye vat, add Activation of Hydrogen Peroxide Solution agent and hydrogen peroxide simultaneously, then dye vat is heated, make the water in dye vat be warming up to 80 DEG C and insulation 32min; Then by the water for cooling after heating to normal temperature state, add in normal-temperature water except oxygenase, eliminate hydrogen peroxide unnecessary in water; Adding after except oxygenase, again water being heated, heating up 40 DEG C, and being incubated 15min; By the water for cooling of 40 DEG C to normal temperature, then in water, add glauber salt, color additive, dyestuff successively; Water temperature is warming up to 60 DEG C again and insulation 10min, then in water, adds alkali, make the pH value of water remain on 12, after adding alkali, be incubated 30min at 60 DEG C again; Finally water is down to normal temperature, takes out yarn and carry out sample.

Embodiment three:

The one that the present embodiment describes is cotton, hairs cold bleaching pre-treatment process, its processing process is: after first yarn being put into dye vat, water is added dye vat, in dye vat, add Activation of Hydrogen Peroxide Solution agent and hydrogen peroxide simultaneously, then dye vat is heated, make the water in dye vat be warming up to 80 DEG C and insulation 35min; Then by the water for cooling after heating to normal temperature state, add in normal-temperature water except oxygenase, eliminate hydrogen peroxide unnecessary in water; Adding after except oxygenase, again water being heated, heating up 45 DEG C, and being incubated 15min; By the water for cooling of 45 DEG C to normal temperature, then in water, add glauber salt, color additive, dyestuff successively; Water temperature is warming up to 60 DEG C again and insulation 10min, then in water, adds alkali, make the pH value of water remain on 12, after adding alkali, be incubated 30min at 60 DEG C again; Finally water is down to normal temperature, takes out yarn and carry out sample.

Claims (1)

1. cotton, a hairs cold bleaching pre-treatment process, its processing process is:

(1) normal-temperature water is added dye vat after putting into dye vat by yarn, adds Activation of Hydrogen Peroxide Solution agent and hydrogen peroxide simultaneously, then heat to dye vat in dye vat, makes the water in dye vat be warming up to 80 DEG C and insulation 30-35min;

(2) by the water for cooling after heating to normal temperature state, add in normal-temperature water except oxygenase, eliminate hydrogen peroxide unnecessary in water;

(3) add except after oxygenase, again water is heated, intensification 40-45 DEG C, and be incubated 15min;

(4) by the water for cooling of 40-45 DEG C to normal temperature, then in water, add glauber salt, color additive, dyestuff successively;

(5) water temperature be warming up to 60 DEG C again and be incubated 10min, then in water, adding alkali, make the pH value of water remain on 11-12, after adding alkali, being incubated 30min at 60 DEG C again;

(6) water is down to normal temperature, takes out yarn and carry out sample.