CN103821014A - Cotton fiber based non-reactive type modified natural dye staining method - Google Patents

Abstract

The invention relates to the field of textile dye staining technology, in particular to a cotton fiber based non-reactive type modified natural dye staining method. The staining method mainly comprises the steps of pretreatment of a cotton fabric, non-reactive type modified treatment of the cotton fabric and staining treatment of the modified cotton fabric, wherein cationic compound modifier is adopted to modify the cotton fabric in the step of the non-reactive type modified treatment of the cotton fabric, so that the modified cotton fabric can still have good whiteness, high strength and good moisture absorption performance; and the K/S value of the stained cotton fabric can be greatly improved, and good leveling property and color fastness are achieved.

Description

Based on the natural dye dying method of the non-response type modification of cotton fiber

Technical field

The present invention relates to textile dyestuff staining technique field, be specifically related to the natural dye dying method based on the non-response type modification of cotton fiber.

Background technology

At present, natural dye has higher dye-uptake and COLOR FASTNESS conventionally on the protein fibre such as silk, wool, and dye-uptake on cotton fiber is low, and COLOR FASTNESS is poor, also can only make it slightly be improved even if application mordant is processed.And traditional natural dye mordant is mostly heavy metallic salt, not only unfavorable to environment, and coloured light is difficult to stable control, is not suitable with large production lot application.

The cation modifying of existing COTTON FABRIC is that solution natural dye dye-uptake is low, one of effective ways that COLOR FASTNESS is poor.At present, most COTTON FABRIC cationic reagent molecular weight is larger, and mostly is reactive compounds, easily causes Modification of Cotton Fabric irregular, and whiteness, brute force and moisture pick-up properties etc. on fiber also have impact to a certain degree.

Summary of the invention

The object of this invention is to provide and a kind ofly make the dyeing of natural dye in COTTON FABRIC not need to add mordant just can reach the natural dye dying method based on the non-response type modification of cotton fiber of higher dye-uptake, preferably COLOR FASTNESS and level-dyeing property.

In order to solve the existing problem of background technology, the present invention is by the following technical solutions: based on the natural dye dying method of the non-response type modification of cotton fiber, comprise the following steps:

(1), cotton pretreatment, by the detergent of the bath raio preparation 1～2g/L of 1:50～60, described COTTON FABRIC is put into wherein, at room temperature clean with clear water, dry;

(2), the non-response type modification of COTTON FABRIC, premenstrual COTTON FABRIC after treatment in described step () is placed in to modifier 2～10% (o.w.f), be warming up to 60～90 ℃, temperature retention time 10～50 minutes; bath raio 1:30～50; then take out COTTON FABRIC and rinse through water, room temperature is dried;

(3), the dyeing processing of modified cotton fabric, the COTTON FABRIC after modification in described step (two) is put into 2～4%(o.w.f) natural dye dye bath dye, bath raio is 1:30～40, then be warming up to 60～70 ℃, be incubated 25～30 minutes, then washing at normal temperatures, fixation, dries.

Further, described modifier is cationic compound.

The present invention has following beneficial effect: the natural dye dying method based on the non-response type modification of cotton fiber of the present invention, mainly comprise the step such as non-response type modification and the dyeing processing of modified cotton fabric of cotton pretreatment, COTTON FABRIC, wherein, in the non-response type modification step of COTTON FABRIC, adopt cationic compound modifier to carry out modification to COTTON FABRIC, make the COTTON FABRIC after modification still can keep its good whiteness, brute force and moisture pick-up properties, the K/S value of dyed cotton fabric improves a lot, and has good level-dyeing property and dyefastness.

The specific embodiment

Below in conjunction with embodiment, the present invention will be further described in detail.

Embodiment mono-: select cotton combing double jersey, sodium copper chlorophyllin natural dye; Based on the natural dye dying method of the non-response type modification of cotton fiber, comprise the following steps:

(1), the pre-treatment of cotton combing double jersey, by the detergent of the bath raio preparation 1g/L of 1:50, wherein, the present embodiment adopts 209 detergents, and described cotton combing double jersey is put into wherein, at room temperature cleans with clear water, dries; In the present embodiment, can remove the impurity such as dirt, grease in COTTON FABRIC by washing;

(2), the non-response type modification of cotton combing double jersey, premenstrual cotton combing double jersey after treatment in described step () is placed in to modifier 2% (o.w.f), be warming up to 60 ℃, temperature retention time 10 minutes; bath raio 1:30; then take out cotton combing double jersey and rinse through water, room temperature is dried; Wherein, modifier is cationic compound, and its molecular weight is little, and dissolubility is good.In the time that cotton combing double jersey is processed, do not need to add bleeding agent and just can, equably to fibrous inside infiltration, can on fiber, move and dye well simultaneously.In addition, after modification, remove fabric face by washing and do not adsorbed firmly modifier, avoided the modifier coming off in dyeing course to produce absorption and precipitation to dyestuff, thereby avoided the waste of uneven dyeing and dyestuff.

(3), the dyeing processing of modification cotton combing double jersey, cotton combing double jersey after modification in described step (two) is put into 2%(o.w.f) natural dye dye bath dye, in the present embodiment, select sodium copper chlorophyllin natural dye, bath raio is 1:30, is then warming up to 60 ℃, be incubated 25 minutes, then washing at normal temperatures, fixation, dries; In the present embodiment, select natural dye to make the dyeing on modification cotton combing double jersey there is good level-dyeing property and COLOR FASTNESS.

Embodiment bis-: select cotton combing double jersey, Gardenia Yellow natural dye, based on the natural dye dying method of the non-response type modification of cotton fiber, comprises the following steps:

(1), the pre-treatment of cotton combing double jersey, by the detergent of the bath raio preparation 1.5g/L of 1:55, described cotton combing double jersey is put into wherein, at room temperature clean with clear water, dry; Wherein, the present embodiment adopts 209 detergents, can remove the impurity such as dirt, grease in COTTON FABRIC by washing;

(2), the non-response type modification of cotton combing double jersey, premenstrual cotton combing double jersey after treatment in described step () is placed in to modifier 6% (o.w.f), be warming up to 75 ℃, temperature retention time 30 minutes; bath raio 1:40; then take out COTTON FABRIC and rinse through water, room temperature is dried; Wherein, modifier is cationic compound, and its molecular weight is little, and dissolubility is good.In the time that cotton combing double jersey is processed, do not need to add bleeding agent and just can, equably to fibrous inside infiltration, can on fiber, move and dye well simultaneously.In addition, after modification, remove fabric face by washing and do not adsorbed firmly modifier, avoided the modifier coming off in dyeing course to produce absorption and precipitation to dyestuff, thereby avoided the waste of uneven dyeing and dyestuff;

(3), the dyeing processing of modified cotton fabric, the COTTON FABRIC after modification in described step (two) is put into 3%(o.w.f) natural dye dye bath dye, bath raio is 1:35, then be warming up to 65 ℃, be incubated 28 minutes, then washing at normal temperatures, fixation, dries; In the present embodiment, select Gardenia Yellow natural dye, make the dyeing on modification cotton combing double jersey there is good level-dyeing property and COLOR FASTNESS.

Embodiment tri-: select cotton combing double jersey, alkermes natural dye, based on the natural dye dying method of the non-response type modification of cotton fiber, comprises the following steps:

(1), the pre-treatment of cotton combing double jersey, by the detergent of the bath raio preparation 2g/L of 1:60, described cotton combing double jersey is put into wherein, at room temperature clean with clear water, dry; The present embodiment adopts 209 detergents, can remove the impurity such as dirt, grease in COTTON FABRIC by washing;

(2), the non-response type modification of cotton combing double jersey, premenstrual cotton combing double jersey after treatment in described step () is placed in to modifier 10% (o.w.f), be warming up to 90 ℃, temperature retention time 50 minutes; bath raio 1:50; then take out COTTON FABRIC and rinse through water, room temperature is dried; Wherein, modifier is cationic compound, and its molecular weight is little, and dissolubility is good.In the time that cotton combing double jersey is processed, do not need to add bleeding agent and just can, equably to fibrous inside infiltration, can on fiber, move and dye well simultaneously.In addition, after modification, remove fabric face by washing and do not adsorbed firmly modifier, avoided the modifier coming off in dyeing course to produce absorption and precipitation to dyestuff, thereby avoided the waste of uneven dyeing and dyestuff;

(3), the dyeing processing of modified cotton fabric, the COTTON FABRIC after modification in described step (two) is put into 4%(o.w.f) natural dye dye bath dye, bath raio is 1:40, then be warming up to 70 ℃, be incubated 30 minutes, then washing at normal temperatures, fixation, dries; In the present embodiment, alkermes natural dye, makes the dyeing on modification cotton combing double jersey have good level-dyeing property and COLOR FASTNESS.

Finally explanation is, above embodiment is only unrestricted in order to technical scheme of the present invention to be described, other modifications that those of ordinary skills make technical scheme of the present invention or be equal to replacement, only otherwise depart from the spirit and scope of technical solution of the present invention, all should be encompassed in the middle of claim scope of the present invention.

Claims (2)

1. the natural dye dying method based on the non-response type modification of cotton fiber, is characterized in that, comprises the following steps:

(1), cotton pretreatment, by the detergent of the bath raio preparation 1～2g/L of 1:50～60, described COTTON FABRIC is put into wherein, at room temperature clean with clear water, dry;

(2), the non-response type modification of COTTON FABRIC, premenstrual COTTON FABRIC after treatment in described step () is placed in to modifier 2～10% (o.w.f), be warming up to 60～90 ℃, temperature retention time 10～50 minutes; bath raio 1:30～50; then take out COTTON FABRIC and rinse through water, room temperature is dried;

(3), the dyeing processing of modified cotton fabric, the COTTON FABRIC after modification in described step (two) is put into 2～4%(o.w.f) natural dye dye bath dye, bath raio is 1:30～40, then be warming up to 60～70 ℃, be incubated 25～30 minutes, then washing at normal temperatures, fixation, dries.

2. the natural dye dying method based on the non-response type modification of cotton fiber according to claim 1, is characterized in that, described modifier is cationic compound.