CN112301768A

CN112301768A - Wool dyeing process for improving hair root and hair tip effect

Info

Publication number: CN112301768A
Application number: CN202011247384.9A
Authority: CN
Inventors: 季正英; 王锦鹏; 宋仁华; 钱东浩
Original assignee: Zhangjiagang Yangzi Dyeing And Finishing Co ltd
Current assignee: Zhangjiagang Yangzi Dyeing And Finishing Co ltd
Priority date: 2020-11-10
Filing date: 2020-11-10
Publication date: 2021-02-02

Abstract

The invention provides a wool dyeing process for improving the hair root and hair tip effect, which comprises the following steps: 1) dyeing wool tops: adding a penetration enhancer at room temperature, using an amphoteric leveling agent for wool, and running for 10 minutes; adding anhydrous sodium sulphate, and running for 10 minutes; quantitatively adding the cellulose reactive dye in 15-20 minutes, heating to 98 ℃ at the speed of 1-2 ℃/minute, preserving the temperature for 30-90 minutes according to the color depth, and draining after the heat preservation is finished; 2) soap washing treatment: adding soaping agent at room temperature, running for 5 minutes, heating to 60-70 ℃, keeping the temperature for 15-30min, overflowing and washing for 10 minutes, and draining water and entering the next procedure. According to the wool dyeing process for improving the hair root and hair tip effect, the wool fiber is dyed by using the cellulose reactive dye, and the reactive groups can be combined with hydroxyl, amino, imino and the like on the protein fiber through covalent bonds during dyeing, so that the dyeing fastness is high, and the phenomenon of hair tip and hair root after dyeing can be covered.

Description

Wool dyeing process for improving hair root and hair tip effect

Technical Field

The invention relates to the field of textiles, in particular to a wool dyeing process for improving the hair root and hair tip effect.

Background

Because the wool is natural protein fiber, the difference between the tip fiber of the wool and the fiber tufted at the root part of the wool is larger, the root part of the wool is thicker, and the hydrophobic scale layer coated outside is thicker and has stronger hydrophobicity; the wool tip part is thinner, and the scale layer coated outside is thinner. Meanwhile, in each stage of wool growth and development, the wool needs to be subjected to various weather conditions such as external light, heat, rainwater, grease, acid, alkali, mechanical friction and the like, so that the scale layer coated on the surface of the tip part outside the wool is greatly damaged, and the root part inside the wool is well protected. Therefore, the dyeing performance is shown in that the hair tip fiber has high hydrophilicity, the hair root part has high hydrophobicity, the hair tip fiber is easy to swell in water during dyeing, a large amount of dye liquor is adsorbed at the beginning of dyeing, the color of the hair tip is darker due to the combination of the dye liquor and the hair tip, and the color of the hair root is lighter, which is called 'hair tip dyeing'.

Traditionally, wool dyeing can be generally dyed with acid dyes, mordant dyes, metal complex dyes, reactive dyes. The acid dye has poor wet treatment fastness and is generally not suitable for the style of holding strips; heavy metals in mordant dye dyeing have great harm to the environment; the metal complex dye has incomplete color spectrum, insufficient brilliance and the like, and the heavy metals such as chromium, cobalt, copper and the like have considerable harm to the environment, and although some control measures are provided at present, the allowable concentration still has potential harm to the environment. Heavy metal contaminants are produced, whether in the synthesis or application of metal complex dyes. The traditional reactive dye for wool has a good dyeing effect as a reactive dye, but once the dye reacts with fibers, the dye loses the migration property, an ideal level-dyeing property is difficult to obtain, the operation difficulty during production is high, the dyeing cost is high, the phenomenon that hair tips and hair roots are easy to cause when some wool fibers which are specially treated are dyed with sensitive colors, the autumn wind is shaky and cool, the grass trees are shaken off and exposed to frost, a layer of white hair is produced on the surface of knitted fabrics like silver frost on a deep autumn plant, and the phenomenon can make the colors look white and dark, old, unsatisfied and not beautiful and impure. The acid dye has poor wet processing fastness and is not suitable for the style of holding strips. The medium dye and the metal complex dye contain heavy metals, and are not ecological and environment-friendly. The cost of the reactive dye for the hair is high, and the phenomenon of hair root and hair tip is difficult to cover when the reactive dye is used for dyeing sensitive colors.

Disclosure of Invention

The present invention is directed to a wool dyeing process for improving the effect of the hair root and the hair tip, which can improve the phenomenon of the hair tip and the hair root when dyeing sensitive colors on wool, and improve the transparency and the brilliance of the colors.

In order to solve the technical problems, the technical scheme provided by the invention is as follows:

a wool dyeing process for improving the hair root and hair tip effect comprises the following steps:

1) dyeing wool tops: adding a penetration enhancer at room temperature, using an amphoteric leveling agent for wool, and running for 10 minutes; adding anhydrous sodium sulphate, and running for 10 minutes; quantitatively adding the cellulose reactive dye in 15-20 minutes, heating to 98 ℃ at the speed of 1-2 ℃/minute, preserving the temperature for 30-90 minutes according to the color depth, and draining after the heat preservation is finished;

2) soap washing treatment: adding soaping agent at room temperature, running for 5 minutes, heating to 60-70 ℃, keeping the temperature for 15-30min, overflowing and washing for 10 minutes, and draining water and entering the next procedure.

As a refinement, the penetrating defoamer was ALBAFLOW FFW and was used in an amount of 0.5 mL/L.

As an improvement, the amphoteric leveling agent for wool is ALBEGAL B-LV and the dosage of the amphoteric leveling agent for wool is 2-4%.

As an improvement, the reactive dye for cellulose is REMAZOL/LEVAFIX reactive dye.

As an improvement, the soaping agent is VEROLAN NBO and the dosage of the soaping agent is 0.5-1 mL/L.

The invention has the beneficial effects that:

the invention uses the cellulose reactive dye to dye wool fiber, and the reactive group can be combined with the hydroxyl, amino, imino and the like on the protein fiber by covalent bonds during dyeing, so the dyeing fastness is higher, and the phenomenon of hair tip and hair root after dyeing can be covered. Meanwhile, compared with the traditional wool reactive dye, the price of the dye is much lower, and the dyeing cost can be saved.

Drawings

FIG. 1 is a comparison of conventional dyeing according to the present invention and dyeing according to the present method.

Detailed Description

The invention is illustrated below by means of specific examples, without being restricted thereto.

Example one

A reactive dyeing process for improving hair tip and hair root comprises the following steps:

1) dyeing wool tops, adding a penetration enhancer at room temperature, using an amphoteric leveling agent for wool, and running for 10 minutes; adding anhydrous sodium sulphate, and running for 10 minutes; and quantitatively adding the reactive dye for cellulose in the next 20 minutes, heating to 98 ℃ at the speed of 1 ℃/minute, preserving the temperature for 45 minutes, and draining after the heat preservation is finished. Wherein the penetrating antifoaming agent is ALBAFLOW FFW and the dosage of the penetrating antifoaming agent is 0.5 mL/L; the wool amphoteric leveling agent is ALBEGAL B-LV, and the dosage of the wool amphoteric leveling agent is 2%; the using amount of the anhydrous sodium sulphate is 20 g/L; the reactive dye for cellulose is REMAZOL/LEVAFIX reactive dye and the dosage of the reactive dye for cellulose is 0.729%.

2) And (3) soaping, adding a soaping agent at room temperature, running for 5 minutes, heating to 70 ℃, keeping the temperature for 15 minutes, overflowing and washing for 10 minutes, and draining. The soaping agent is VEROLAN NBO and the dosage of the soaping agent is 0.5 mL/L.

Example two

1) dyeing wool tops, adding a penetration enhancer at room temperature, using an amphoteric leveling agent for wool, and running for 10 minutes; adding anhydrous sodium sulphate, and running for 10 minutes; and quantitatively adding the cellulose reactive dye for 20 minutes, heating to 98 ℃ at the speed of 2 ℃/minute, preserving the temperature for 75 minutes, and draining after the heat preservation is finished. Wherein the penetrating antifoaming agent is ALBAFLOW FFW and the dosage of the penetrating antifoaming agent is 0.5 mL/L; the wool amphoteric leveling agent is ALBEGAL B-LV, and the dosage of the wool amphoteric leveling agent is 4%; the using amount of the anhydrous sodium sulphate is 40 g/L; the reactive dye for cellulose is REMAZOL/LEVAFIX reactive dye and the dosage of the reactive dye for cellulose is 3.33%.

2) And (3) soaping, adding a soaping agent at room temperature, running for 5 minutes, heating to 70 ℃, keeping the temperature for 20 minutes, overflowing and washing for 10 minutes, and draining. The soaping agent is VEROLAN NBO and the dosage of the soaping agent is 1 mL/L.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and the technical solutions and the inventive concepts thereof according to the present invention should be equivalent or changed within the scope of the present invention.

Claims

1. A wool dyeing process for improving the hair root and hair tip effect is characterized by comprising the following steps:

2. The wool dyeing process for improving the hair root and hair tip effect of claim 1, wherein the penetrating antifoaming agent is ALBAFLOW FFW and the dosage of the penetrating antifoaming agent is 0.5 mL/L.

3. The process of claim 1, wherein the amphoteric leveling agent used for dyeing wool is ALBEGAL B-LV and the amount of the amphoteric leveling agent used for dyeing wool is 2-4%.

4. A process for dyeing wool for improving the hair tip effect of hair root according to claim 1, wherein the reactive dye for cellulose is REMAZOL/LEVAFIX reactive dye.

5. A process for dyeing wool for improving the hair tip effect of hair roots according to claim 1, wherein said soaping agent is VEROLAN NBO and is used in an amount of 0.5-1 mL/L.