CN112981987A - Dyeing process of blue vegetable dye in cashmere fiber - Google Patents
Dyeing process of blue vegetable dye in cashmere fiber Download PDFInfo
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- CN112981987A CN112981987A CN202110231202.7A CN202110231202A CN112981987A CN 112981987 A CN112981987 A CN 112981987A CN 202110231202 A CN202110231202 A CN 202110231202A CN 112981987 A CN112981987 A CN 112981987A
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- dyeing
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- cashmere
- blue
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/34—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using natural dyestuffs
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/0032—Determining dye recipes and dyeing parameters; Colour matching or monitoring
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P1/00—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
- D06P1/44—General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
- D06P1/673—Inorganic compounds
- D06P1/67333—Salts or hydroxides
- D06P1/67341—Salts or hydroxides of elements different from the alkaline or alkaline-earth metals or with anions containing those elements
-
- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
- D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
- D06P3/02—Material containing basic nitrogen
- D06P3/04—Material containing basic nitrogen containing amide groups
- D06P3/14—Wool
Abstract
The invention discloses a dyeing process of blue vegetable dye in cashmere fiber, which comprises the following steps: A. pre-treating; fully soaking cashmere fibers to obtain a product A; B. dyeing; adding a mordant dyeing solution into a dye vat, pretreating the product A, adding a blue plant dye into the mordant dyeing solution for dissolving, heating the mordant dyeing solution mixed with the dye to 75-85 ℃ at the heating temperature of 0.8-1.2 ℃/min, dyeing for 50-60min at constant temperature, and discharging liquid to obtain dyed cashmere fiber, namely a product B; C. cleaning; adding hot water into a dye vat, carrying out alkali neutralization and multiple cleaning on the product B, and discharging liquid to obtain cleaned cashmere fiber, namely a product C; D. soaping; adding soap lotion into the dye vat, soaping the product C for 18-22min, discharging liquid, and taking out the soaped cashmere fiber to obtain a product D; E. dehydrating; and drying the product D to obtain a dyed cashmere fiber finished product. The invention has the characteristic of effectively improving the dyeing effect.
Description
Technical Field
The invention relates to a cashmere fiber dyeing process, in particular to a dyeing process of blue plant dye in cashmere fiber.
Background
Natural dyes refer to dyes obtained from plant, animal, mineral sources with little or no chemical processing. Among many natural dyes, natural blue pigment is rare in nature, and indigo can be extracted from various bluegrass such as Polygonum tinctorium, Isatis tinctorium, and Strobilanthes cusia for dyeing, or natural blue dye GL01 can be extracted from Gardenia jasminoides fruit as raw material. Indigo is a vat dye and is generally not suitable for cashmere dyeing; the natural blue dye GL01 is easily soluble in water, is bright blue and good in solubility, is suitable for natural protein fibers, but has low dyeing fastness and gray hue, so that the integral dyeing effect of dyed cashmere fibers is poor, and the subsequent weaving and wearing performance (performance in the process of wearing clothes) is also influenced correspondingly. Therefore, the conventional techniques have a problem of poor dyeing effect.
Disclosure of Invention
The invention aims to provide a dyeing process of a blue plant dye in cashmere fibers. The invention has the characteristic of effectively improving the dyeing effect.
The technical scheme of the invention is as follows: a dyeing process of blue vegetable dye in cashmere fiber comprises the following steps:
A. pre-treating; fully soaking cashmere fibers to obtain a product A;
B. dyeing; adding a mordant dyeing solution into a dye vat, pretreating the product A, adding a blue plant dye into the mordant dyeing solution for dissolving, heating the mordant dyeing solution mixed with the dye to 75-85 ℃ at the heating temperature of 0.8-1.2 ℃/min, dyeing for 50-60min at constant temperature, and discharging liquid to obtain dyed cashmere fiber, namely a product B;
C. cleaning; adding hot water into a dye vat, carrying out alkali neutralization and multiple cleaning on the product B, and discharging liquid to obtain cleaned cashmere fiber, namely a product C;
D. soaping; adding soap lotion into the dye vat, soaping the product C for 18-22min, discharging liquid, and taking out the soaped cashmere fiber to obtain a product D;
E. dehydrating; and drying the product D to obtain a dyed cashmere fiber finished product.
In the dyeing process of the blue plant dye in the cashmere fibers, the mordant solution is a metal cation solution, and the metal cation solution contains 6-10% of mordant by mass.
In the dyeing process of the blue vegetable dye in the cashmere fibers, the pH value of the metal cation solution is 4-5.
In the dyeing process of the blue vegetable dye in the cashmere fibers, the metal cation solution is copper salt or iron salt.
In the dyeing process of the blue vegetable dye in the cashmere fiber, the initial temperature of the mordant dyeing solution is 30-40 ℃.
In the dyeing process of the blue vegetable dye in the cashmere fibers, the hot water temperature in the step C is 55-65 ℃.
In the dyeing process of the blue vegetable dye in the cashmere fibers, the temperature of the soaping liquid in the step D is 55-65 ℃, and the pH value of the soaping liquid is 8-8.5.
In the dyeing process of the blue vegetable dye in the cashmere fiber, the soaping liquid comprises a soaping agent and clear water.
In the dyeing process of the blue vegetable dye in the cashmere fiber, the blue vegetable dye is gardenia blue pigment.
In the dyeing process of the blue vegetable dye in the cashmere fiber, the dehydration treatment comprises the following specific steps: and (5) putting the product D into an oven at the temperature of 95-105 ℃ for baking for 6-7 hours.
Compared with the prior art, the method has the advantages that the cashmere fibers are pretreated by the mordant solution consisting of the metal cation solution and the mordant, and dyeing conditions (such as the pH value of the metal cation solution, the using amount of the mordant, the dyeing temperature, the dyeing time and other process parameters) are strictly controlled, so that the target cashmere fibers can achieve good dyeing effect. Through tests (the methods for testing the color fastness are respectively used in the following standards, GB/T3921-; the color fastness to dry rubbing, wet rubbing and perspiration stain can reach more than 4 grades; simultaneously, excellent blue hue related color characteristic values are achieved: l value 38.49; a is value: -10.42; b is value: 1; c value: 11.44; K/S value: 5.86; and the blue cashmere plant dyeing product with better dyeing fastness can be obtained through spinning and weaving. In conclusion, the dyeing method has the characteristic of effectively improving the dyeing effect.
Detailed Description
The present invention is further illustrated by the following examples, which are not to be construed as limiting the invention.
Example 1. A dyeing process of blue vegetable dye in cashmere fiber comprises the following steps:
A. pre-treating; fully soaking cashmere fibers to obtain a product A;
B. dyeing; adding a mordant solution into a dye vat, pretreating the product A, adding a blue plant dye (with the dosage of 7-8% owf) into the mordant solution for dissolving, heating the mordant solution mixed with the dye to 75-85 ℃ at the heating temperature of 0.8-1.2 ℃/min, dyeing at the constant temperature for 50-60min, and discharging liquid to obtain dyed cashmere fiber, namely a product B;
C. cleaning; adding hot water into a dye vat, carrying out alkali neutralization and multiple cleaning on the product B, and discharging liquid to obtain cleaned cashmere fiber, namely a product C;
D. soaping; adding soap lotion into the dye vat, soaping the product C for 18-22min, discharging liquid, and taking out the soaped cashmere fiber to obtain a product D;
E. dehydrating; and drying the product D to obtain a dyed cashmere fiber finished product.
The mordant solution is a metal cation solution, and the metal cation solution contains a mordant with the mass fraction of 6-10%.
The pH value of the metal cation solution is 4-5.
The metal cation solution is copper salt or iron salt.
The initial temperature of the mordant solution is 30-40 ℃.
The temperature of the hot water in the step C is 55-65 ℃.
And D, controlling the temperature of the soap washing liquid to be 55-65 ℃ and the pH value of the soap washing liquid to be 8-8.5.
The soaping liquid comprises a soaping agent and clear water.
The blue plant dye is gardenia blue pigment.
The dehydration treatment comprises the following specific steps: and (5) putting the product D into an oven at the temperature of 95-105 ℃ for baking for 6-7 hours.
During dyeing, the bath ratio of the wool fibers to the mixed solution of the mordant dyeing solution and the blue plant dye is 1: 30; and during soaping, the bath ratio of the wool fibers to the soaping liquid is 1: 10.
The pretreatment method comprises soaking wool fiber in 50-60 deg.C water bath for 10 min.
The blue plant dye is gardenia blue pigment which is purchased from Dahengyuan biotechnology limited company in Henan and is extracted by using plant fruits or shells as raw materials through a plurality of working procedures of crushing, leaching, purifying, concentrating, drying and the like.
The mordant is ferrous sulfate.
The soaping agent is Z-101 which is a new material foamless soaping agent for Zhejiang Hanbang.
Example 2. A dyeing process of blue vegetable dye in cashmere fiber comprises the following steps:
A. pre-treating; fully soaking cashmere fibers to obtain a product A;
B. dyeing; adding a mordant dyeing solution into a dye vat, pretreating the product A, adding a blue plant dye (with the dosage of 7.5% owf) into the mordant dyeing solution for dissolving, heating the mordant dyeing solution mixed with the dye to 80 ℃ at the heating temperature of 1 ℃/min, dyeing at the constant temperature for 55min, and discharging liquid to obtain dyed cashmere fiber, namely a product B;
C. cleaning; adding hot water into a dye vat, carrying out alkali neutralization and multiple cleaning on the product B, and discharging liquid to obtain cleaned cashmere fiber, namely a product C;
D. soaping; adding soap lotion into the dye vat, soaping the product C for 20min, discharging liquid, and taking out the soaped cashmere fibers to obtain a product D;
E. dehydrating; and drying the product D to obtain a dyed cashmere fiber finished product.
The mordant solution is a metal cation solution, and the metal cation solution contains a mordant with the mass fraction of 8%.
The pH of the metal cation solution was 4.5.
The metal cation solution is copper salt or iron salt.
The initial temperature of the mordant solution was 35 ℃.
The hot water temperature in step C was 60 ℃.
And D, the temperature of the soap washing liquid in the step D is 60 ℃, and the pH value of the soap washing liquid is 8-8.5.
The soaping liquid comprises a soaping agent and clear water.
The blue plant dye is gardenia blue pigment.
The dehydration treatment comprises the following specific steps: and putting the product D into an oven at 100 ℃ for baking for 6.5 hours.
During dyeing, the bath ratio of the wool fibers to the mixed solution of the mordant dyeing solution and the blue plant dye is 1: 30; and during soaping, the bath ratio of the wool fibers to the soaping liquid is 1: 10.
The pretreatment method specifically comprises the step of immersing the wool fibers in a water bath at 55 ℃ for 10 min.
The blue plant dye is gardenia blue pigment which is purchased from Dahengyuan biotechnology limited company in Henan and is extracted by using plant fruits or shells as raw materials through a plurality of working procedures of crushing, leaching, purifying, concentrating, drying and the like.
The mordant is ferrous sulfate.
The soaping agent is Z-101 which is a new material foamless soaping agent for Zhejiang Hanbang.
Comparative example 1: the same steps as in example 2 were used for dyeing in the pretreatment, washing, soaping, and dewatering treatments, with the following differences: in the dyeing step, natural blue dye (gardenia blue pigment) is adopted for direct dyeing (namely, a mordant solution is not adopted, 55 ℃ clean water is used for directly pretreating the product A, the product A is soaked for 10 minutes, then blue plant dye is added, the mordant solution mixed with the dye is heated to 80 ℃ at the heating temperature of 1 ℃/min, constant-temperature dyeing is carried out for 55 minutes, and then liquid discharge is carried out, so as to obtain dyed cashmere fiber), the obtained cashmere fiber is compared with the cashmere fiber obtained in the embodiment 2, the dyeing fastness (soaping color fastness, dry friction resistance, wet friction resistance and sweat stain fastness) of the cashmere fiber obtained in the embodiment 2 is improved by 1-2 grade compared with that of the cashmere fiber obtained in the comparative example 1, and the weaving and wearing performances of subsequent cashmere plant dyeing products are met.
Claims (10)
1. A dyeing process of blue vegetable dye in cashmere fiber is characterized by comprising the following steps:
A. pre-treating; fully soaking cashmere fibers to obtain a product A;
B. dyeing; adding a mordant dyeing solution into a dye vat, pretreating the product A, adding a blue plant dye into the mordant dyeing solution for dissolving, heating the mordant dyeing solution mixed with the dye to 75-85 ℃ at the heating temperature of 0.8-1.2 ℃/min, dyeing for 50-60min at constant temperature, and discharging liquid to obtain dyed cashmere fiber, namely a product B;
C. cleaning; adding hot water into a dye vat, carrying out alkali neutralization and multiple cleaning on the product B, and discharging liquid to obtain cleaned cashmere fiber, namely a product C;
D. soaping; adding soap lotion into the dye vat, soaping the product C for 18-22min, discharging liquid, and taking out the soaped cashmere fiber to obtain a product D;
E. dehydrating; and drying the product D to obtain a dyed cashmere fiber finished product.
2. The process for dyeing cashmere fibers with blue plant dye according to claim 1, characterized in that: the mordant solution is a metal cation solution, and the metal cation solution contains a mordant with the mass fraction of 6-10%.
3. The process for dyeing cashmere fibers with blue plant dye according to claim 2, characterized in that: the pH value of the metal cation solution is 4-5.
4. The process for dyeing cashmere fibers with blue plant dye according to claim 2, characterized in that: the metal cation solution is copper salt or iron salt.
5. The process for dyeing cashmere fibers with blue plant dye according to claim 1, characterized in that: the initial temperature of the mordant solution is 30-40 ℃.
6. The process for dyeing cashmere fibers with blue plant dye according to claim 1, characterized in that: the temperature of the hot water in the step C is 55-65 ℃.
7. The process for dyeing cashmere fibers with blue plant dye according to claim 1, characterized in that: and D, controlling the temperature of the soap washing liquid to be 55-65 ℃ and the pH value of the soap washing liquid to be 8-8.5.
8. The process for dyeing cashmere fibers with blue plant dye according to claim 1, characterized in that: the soaping liquid comprises a soaping agent and clear water.
9. The process for dyeing cashmere fibers with blue plant dye according to claim 1, characterized in that: the blue plant dye is gardenia blue pigment.
10. The process for dyeing cashmere fibers with blue plant dye according to claim 1, characterized in that the dehydration treatment comprises the following steps: and (5) putting the product D into an oven at the temperature of 95-105 ℃ for baking for 6-7 hours.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110231202.7A CN112981987A (en) | 2021-03-02 | 2021-03-02 | Dyeing process of blue vegetable dye in cashmere fiber |
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| CN202110231202.7A CN112981987A (en) | 2021-03-02 | 2021-03-02 | Dyeing process of blue vegetable dye in cashmere fiber |
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Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105178061A (en) * | 2015-09-28 | 2015-12-23 | 江苏丹毛纺织股份有限公司 | Technological method for dyeing wool tops through plant indigo dye |
| CN110714341A (en) * | 2019-10-28 | 2020-01-21 | 宁波康赛妮纺织品有限公司 | Natural grass dye cashmere dyeing process and cashmere product |
| CN111793994A (en) * | 2020-08-20 | 2020-10-20 | 江苏阳光股份有限公司 | Mordant dyeing process of wool fabric |
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2021
- 2021-03-02 CN CN202110231202.7A patent/CN112981987A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105178061A (en) * | 2015-09-28 | 2015-12-23 | 江苏丹毛纺织股份有限公司 | Technological method for dyeing wool tops through plant indigo dye |
| CN110714341A (en) * | 2019-10-28 | 2020-01-21 | 宁波康赛妮纺织品有限公司 | Natural grass dye cashmere dyeing process and cashmere product |
| CN111793994A (en) * | 2020-08-20 | 2020-10-20 | 江苏阳光股份有限公司 | Mordant dyeing process of wool fabric |
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