WO2021189707A1

WO2021189707A1 - Method for dyeing bamboo fiber fabric on basis of mahonia bealei (fort.) carr. plant dye

Info

Publication number: WO2021189707A1
Application number: PCT/CN2020/100559
Authority: WO
Inventors: 朱莉娜
Original assignee: 德州学院
Priority date: 2020-03-23
Filing date: 2020-07-07
Publication date: 2021-09-30
Also published as: CN111235915A; CN111235915B

Abstract

The present invention belongs to the technical field of fabric dyeing methods, and specifically relates to a method for dyeing a bamboo fiber fabric on the basis of a Mahonia bealei (Fort.) Carr. plant dye. Mahonia, which is applied as a natural plant dye for dyeing a bamboo fiber fabric, can obtain a fabric having an antimicrobial property, and is more suitable for the production of homewear. The dyeing method provided by the present invention comprises the following steps: desizing and scouring a fabric by respectively using starch bio-enzymes and scouring enzymes, bleaching same by means of hydrogen peroxide and hydrogen peroxide enzymes; and by means of performing alcohol extraction, acquiring a Mahonia dyeing liquid, dyeing the fabric with a salt as a dyeing auxiliary, and then soaping same. The fabric dyed by the present invention has a soft and elegant color and uses a simple dyeing process, and the Mahonia dye acquired by means of alcohol extraction can be freeze-dried and stored, which is convenient to transport and use. The application of the method in practical production has a good economic significance.

Description

Dyeing method of bamboo fiber fabric based on broadleaf plant dyes

Technical field

The invention belongs to the technical field of fabric dyeing methods, and in particular relates to a method for dyeing bamboo fiber fabrics by using broad-leaf ten mahjong dyes.

Background technique

Disclosure of the background information is only intended to increase the understanding of the overall background of the present invention, and is not necessarily regarded as an acknowledgement or any form of suggestion that the information constitutes the prior art known to those of ordinary skill in the art.

Since the 1990s, my country's textile and garment production and export volume has ranked first in the world. While bringing economic and people's livelihood development, the pollution problem of the textile industry cannot be underestimated. Globally, second only to the petroleum industry, the textile and apparel industry has become the world's second most polluting industry. The traditional textile industry consumes huge amounts of water, and the production process is accompanied by a large amount of waste water. The production waste water discharged by printing and dyeing enterprises contains a large number of fibers, sizing agents, oils, dyes and chemical auxiliaries, which are harmful and difficult to treat. In addition, toxic dyes or processing aids in the production process will also adhere to the fabric, causing a direct impact on human health. For example, azo dyes, formaldehyde, fluorescent brighteners and softeners are allergenic; polyvinyl alcohol and Polypropylene slurry is not easily biodegradable; chlorine-containing bleaching agents are seriously polluted; some aromatic amine dyes are carcinogenic; dyes contain harmful heavy metals; various finishing agents and printing and dyeing auxiliaries containing formaldehyde have toxic effects on the human body.

In addition, in traditional printing and dyeing techniques, alkaline reagents are often used to pre-treat fabrics, and these treatment processes will also have a negative impact on the appearance and use experience of the fabric itself. In order to achieve environmentally friendly production and improve the comfort of fabrics, the application of biological enzymes to textile printing and dyeing has significant advantages, including cleaning the surface of the fabric, reducing surface fluff, and improving the feel, drape, and water absorption of the fabric. At the same time, the biological enzyme treatment process also has the characteristics of environmental protection, which can effectively reduce the oxygen demand of sewage treatment. Compared with strong alkalis and enhancers, biological enzymes are undoubtedly a pollution-free and environmentally friendly tool. Effectively treat the pre-dyeing bleaching waste liquid without causing secondary pollution.

Mahonia bealei (Fort.) Carr. is a plant belonging to the Dicotyledons, Berberiaceae, and Mahonia bealei (Fort.) Carr. It has a wide range of medicinal effects. Its main ingredients include berberine, as a broad-spectrum antibacterial drug, it is also a plant dye with a cationic chemical structure. Patent CN102604423B provides a dye extraction method using berberine plants as raw materials, which is applied to acrylic fiber Dyeing, while obtaining color, can also have certain antibacterial properties.

Bamboo fiber is a cellulose fiber extracted from naturally grown bamboo. It is the fifth largest natural fiber after cotton, hemp, wool, and silk. It has good air permeability, water absorption, abrasion resistance and good dyeing properties, etc. , It is more suitable for the production of underwear, household clothing and towels and other personal clothing.

Summary of the invention

Based on the above research background, the inventor believes that providing a fabric and printing and dyeing process that is more suitable for home furnishings has a good market prospect. The purpose of the present invention is to provide a fabric printing and dyeing process suitable for home furnishings. The research of the present invention shows that bamboo fiber fabrics can be dyed by using Ten Merit dyes to obtain fabrics with antibacterial properties. Furthermore, the present invention also provides a process for dyeing bamboo fiber fabrics with Ten Great Merits, and bamboo fiber fabrics with good color fixing effect and higher safety performance can be obtained by using the process.

Based on the above research results, the present invention provides the following technical solutions:

The first aspect of the present invention provides the application of Ten Great Merits in bamboo fiber fabric products.

Preferably, the bamboo fiber fabric products include household clothing, underwear, children's and elderly clothing, etc., as well as other antibacterial products, such as cleaning fabrics such as towels.

In a second aspect of the present invention, a method for dyeing bamboo fiber fabric is provided. The dyeing method includes the steps of pretreatment, dyeing and post-treatment on the bamboo fiber fabric;

Wherein, the pretreatment includes desizing, scouring and bleaching the bamboo fiber fabric;

The dyeing is to dye the pre-treated bamboo fiber fabric with the extract of Ten Great Merits;

The post-treatment is soaping.

Preferably, the said desizing adopts starch bioenzyme to steam the bamboo fiber fabric to desizing.

Further preferably, the desizing temperature is controlled at 85°C-90°C.

Further preferably, the pH range of the desizing system is controlled at 5.0-8.0.

Further preferably, the desizing time is 35 to 55 minutes.

Further preferably, the bath ratio of the bamboo fiber fabric and the starch bioenzyme solution is 1:30-40.

Further preferably, the concentration of the starch bio-enzyme is 1.3-1.7 g/L alpha-starch bio-enzyme.

Preferably, the scouring process includes heating and scouring with a scouring agent, and the active ingredients in the scouring agent are the scouring enzyme LS and a surfactant.

Further preferably, the concentration of the scouring enzyme LS is 1.8-2.2 g/L.

More preferably, the concentration of the surfactant is 0.7-0.9 g/L.

Further preferably, the bath ratio of the bamboo fiber fabric to the scouring reagent is 1:13-16.

Further preferably, the pH value of the scouring reagent is within 8-10.

More preferably, the scouring temperature is 55-65°C, or the scouring time is 28-32 min.

Further preferably, the surfactant is one or a mixture of the nonionic surfactant PEG4000 and the quaternary ammonium salt cationic surfactant 1227. In a more preferred solution, the nonionic surfactant PEG4000 is used.

Preferably, the bleaching treatment adopts hydrogen peroxide and hydrogen peroxide biological enzyme for treatment.

More preferably, an alkaline hydrogen peroxide buffer and hydrogen peroxide are used for heating and bleaching under the condition of a bath ratio of 1:28 to 32.

More preferably, the alkaline hydrogen peroxide buffer is _{a mixed solution of Na 2} CO ₃ , Na ₂ SiO ₃ , and NaOH, and the mass ratio of the three components is 2.8-3.2:4.8-5.2:1-1.4.

More preferably, the concentration of the hydrogen peroxide is 7-10 g/L.

More preferably, the bleaching temperature is 90-100°C, or the time is 75-85 min.

Further preferably, the hydrogen peroxide biological enzyme treatment step is as follows: after removing the residual hydrogen peroxide in the fabric, adding the hydrogen peroxide biological enzyme and heating and stirring under the condition of a bath ratio of 1:28-32.

More specifically, the concentration of the hydrogen peroxide biological enzyme is 1.8-2.2 g/L.

More specifically, the temperature is 70-80°C, or the time is 65-75 min.

Preferably, the preparation method of the ten mahoniaceae extract is as follows: using an alcohol solution with a concentration of 40-50% to heat and filter mahonia mahonia leaves to obtain the filtrate, repeat the above operation to combine multiple filtrates to obtain the ten mahoniaceae Credit extract.

Further preferably, the material-to-liquid ratio of the ten major fruits to the alcohol solution is 1:45-55.

Further preferably, the extraction temperature is 60-70°C, and the time is 40-50 minutes.

Preferably, the dyeing process uses salt as a dyeing aid, and further, the concentration of the salt is 1.8-2.2 g/L.

More preferably, the active ingredient in the salt is sodium chloride.

Preferably, the dyeing step parameters are as follows: bath ratio 1:43-47, temperature 52-57°C.

Preferably, the soaping step is as follows: soap powder 1.8-2.2g/L, temperature 43-47°C, bath ratio 1:22-27, soaping time 27-33min.

The beneficial effects of one or more of the above technical solutions are as follows:

(1) From the point of view of color, most of the colors dyed by plant dyeing are light and soft, and dark colors are more difficult to obtain. In the design of home clothes, soft colors are usually used, and the use rate of dark colors is relatively small, which is very consistent with the color characteristics of plant dyeing. The colors dyed by the mordant are yellow-white and green. The light-colored colors can better meet the needs of home wear design and bring great freedom to the design of home wear.

(2) In terms of technology, most plant dyeing processes are simple, using crushed dry dyeing materials and simple mordant technology for toning and fixing. Since the main dye materials are traditional Chinese medicines, they can be dried and stored for easy transportation. And use, these all provide a good foundation for the large-scale production of plant dyeing, and further improve the production efficiency.

(3) In terms of dye utilization, the excellent rate of vegetable dyes is low, and the dyeing cost is high. Although there are technologies such as crushing and ultrasonic extraction to improve efficiency, they are still not as economical as chemical dyeing. However, because plant dyeing is a high value-added process, the market value is high.

(4) From the point of view of the source of dyes, the top ten maisons of broadleaf belong to Chinese medicinal materials. The Chinese medicinal materials industry has good prospects and the prosperous cultivation of Chinese medicines has allowed the planting of plant dyes to be on a good development platform.

(5) From the perspective of environmental protection, plant dyeing is an effective means to reduce pollution in the most polluted textile industry, and the greenness of plant dyeing is more easily recognized and accepted by consumers.

Detailed ways

It should be noted that the following detailed descriptions are all illustrative and are intended to provide further descriptions of the present invention. Unless otherwise specified, all technical and scientific terms used herein have the same meaning as commonly understood by those of ordinary skill in the technical field to which the present invention belongs.

It should be noted that the terms used here are only for describing specific embodiments, and are not intended to limit the exemplary embodiments according to the present invention. As used herein, unless the context clearly indicates otherwise, the singular form is also intended to include the plural form. In addition, it should also be understood that when the terms "comprising" and/or "including" are used in this specification, they indicate There are features, steps, operations, devices, components, and/or combinations thereof.

As described in the background art, in view of the shortcomings in the prior art, in order to solve the above technical problems, the present invention proposes a method for dyeing bamboo fiber fabrics.

In order to enable those skilled in the art to understand the technical solutions of the present invention more clearly, the technical solutions of the present invention will be described in detail below in conjunction with specific embodiments and comparative examples.

Example 1

1. Fabric pretreatment:

①Desizing: the desizing process adopts α-starch bio-enzyme, the temperature is controlled above 90℃, the pH range is controlled at 5.0～8.0, the time is 45min, the liquor ratio is 1:35, and the mass fraction of α-starch is 1.5g/L. Bio-enzyme, steam desizing bamboo fiber fabric.

②Scouring: The scouring enzyme LS is used in the scouring process. The optimized scouring process is: scouring enzyme LS 2g/L, surfactant 0.8g/L, bath ratio 1:15, pH=9, temperature 60℃ , Time 30min.

③Bleaching: The bleaching process uses hydrogen peroxide and hydrogen peroxide biological enzymes.

The first step is to use Na ₂ CO ₃ concentration of 3g/L, Na ₂ SiO ₃ concentration of 5g/L, and NaOH concentration of 1.2g/L as hydrogen peroxide buffer solution. Under the condition of bath ratio of 1:30, the hydrogen peroxide concentration is 9g/L, The bleaching temperature of 95℃ and the bleaching time of 80min are the optimized process for bleaching the fabric.

The second step is to remove the residual hydrogen peroxide in the fabric. The hydrogen peroxide biological enzyme is 2g/L, the bath ratio is 1:30, the temperature is 75 ℃, and the time is 70 minutes. Appropriate mechanical stirring is used to make the hydrogen peroxide biological enzyme molecules can interact with the hydrogen peroxide inside the fiber. The molecules are in full contact to ensure the removal effect.

2. Extraction of the dye solution: pulverize the leaves of the broad-leaved Tendon, according to the material-to-liquid ratio of 1:50, the ethanol concentration of 45%, the temperature of 65℃, and the time of 45min to extract the dye solution, filter out the first dye solution, and then Then add the same water and ethanol concentration as the first extraction, and extract again at a temperature of 65°C for 45 minutes. Mix the dye liquor obtained twice and filter to obtain the dye liquor used for dyeing the fabric.

3. Dyeing: add salt as a dyeing aid, use salt 2g/L, bath ratio 1:45, time 75min, temperature 55℃ to dye bamboo fiber fabric.

4. Post-treatment: soaping: soap powder 2g/L, temperature 45℃, bath ratio 1:25, soaping time 30min, the color fastness of bamboo fiber fabric after soaping reaches level 4.

The fabric obtained by dyeing can be used for children's clothing, elderly clothing, underwear and other antibacterial fabrics.

Example 2

1. Fabric pretreatment:

①Desizing: the desizing process adopts α-starch bio-enzyme, the temperature is controlled above 90℃, the pH range is controlled at 5.0～8.0, the time is 35min, the liquor ratio is 1:40, and the mass fraction of α-starch is 1.3g/L. Bio-enzyme, steam desizing bamboo fiber fabric.

② Scouring: Scouring enzyme LS is used in the scouring process. The specific process is: scouring enzyme LS 2g/L, surfactant 0.8g/L, bath ratio 1:13, pH=10, temperature 65°C, time 28min.

The first step is to use Na ₂ CO ₃ concentration of 2.8 g/L, Na ₂ SiO ₃ concentration of 4.8 g/L, and NaOH concentration of 1 g/L as the hydrogen peroxide buffer solution. Under the condition of bath ratio 1:28, the hydrogen peroxide concentration is 7 g/L , The bleaching temperature of 90℃ and the bleaching time of 85min are optimized processes for bleaching the fabric.

The second step is to remove the residual hydrogen peroxide in the fabric. The hydrogen peroxide biological enzyme is 1.8g/L, the bath ratio is 1:32, the temperature is 70°C, and the time is 65 minutes. The hydrogen peroxide molecules are in full contact to ensure the removal effect.

2. Extraction of dye solution: pulverize the leaves of Broadleaf Tendon, according to the material-to-liquid ratio of 1:55, ethanol concentration of 40%, temperature of 65°C, and time of 50min to extract the dye solution, filter out the first dye solution, and then Then add the same water and ethanol concentration as the first extraction, and extract again at a temperature of 65°C for 45 minutes. Mix the dye liquor obtained twice and filter to obtain the dye liquor used for dyeing the fabric.

3. Dyeing: add salt as a dyeing aid, use salt 1.8g/L, bath ratio 1:47, time 75min, temperature 55℃ to dye bamboo fiber fabric.

4. Post-treatment: soaping: soap powder 2.2g/L, temperature 43℃, bath ratio 1:27, soaping time 33min, the color fastness of the bamboo fiber fabric after soaping reaches level 4.

Example 3

1. Fabric pretreatment:

②Scouring: the scouring enzyme LS is used in the scouring process. The optimized scouring process is: scouring enzyme LS 2.2g/L, surfactant 1.9g/L, bath ratio 1:16, pH=8, temperature 55 ℃, time 32min.

The first step is to use Na ₂ CO ₃ concentration of 3.2 g/L, Na ₂ SiO ₃ concentration of 4.8 g/L, and NaOH concentration of 1 g/L as hydrogen peroxide buffer solution. Under the condition of bath ratio 1:28, the hydrogen peroxide concentration is 10 g/L , The bleaching temperature is 98℃, and the bleaching time is 75min to optimize the process for bleaching the fabric.

The second step is to remove the residual hydrogen peroxide in the fabric. The hydrogen peroxide biological enzyme is 2g/L, the bath ratio is 1:28, the temperature is 70 ℃, and the time is 75 minutes. The molecules are in full contact to ensure the removal effect.

2. Extraction of dye solution: pulverize the leaves of Broadleaf Tendon, according to the material-liquid ratio of 1:50, ethanol concentration of 50%, temperature of 60℃, and time of 55min to extract the dye solution, filter out the first dye solution, and then Then add the same water and ethanol concentration as the first extraction, and extract again at a temperature of 65°C for 45 minutes. Mix the dye liquor obtained twice and filter to obtain the dye liquor used for dyeing the fabric.

3. Dyeing: add salt as a dyeing aid, use salt 2.2g/L, bath ratio 1:47, time 75min, temperature 57℃ to dye bamboo fiber fabric.

4. Post-treatment: soaping: soap powder 2.2g/L, temperature 47℃, bath ratio 1:22, soaping time 27min, the color fastness of bamboo fiber fabric after soaping reaches level 4.

Comparative Example 1: Direct dyeing

1. Extraction of dye solution: pulverize the leaves of Broadleaf Tendon, according to the material-to-liquid ratio of 1:50, ethanol concentration of 50%, temperature of 60℃, and time of 55min to extract the dye solution, filter out the first dye solution, then Then add the same water and ethanol concentration as the first extraction, and extract again at a temperature of 65°C for 45 minutes. Mix the dye liquor obtained twice and filter to obtain the dye liquor used for dyeing the fabric.

2. Dyeing: dyeing bamboo fiber fabric with bath ratio 1:47, time 75min, temperature 57℃.

3. Post-treatment: soaping: soap powder 2.2g/L, temperature 47℃, bath ratio 1:22, soaping time 27min, the color fastness of the bamboo fiber fabric after soaping reaches level 4.

Comparative Example 2: Alum Mordant

2. Dyeing: add alum as mordant, dye bamboo fiber fabric at 1.2g/L, bath ratio 1:47, time 75min, temperature 57℃.

3. Post-treatment: soaping: soap powder 2.2g/L, temperature 47℃, bath ratio 1:22, soaping time 27min, the color fastness of bamboo fiber fabric after soaping reaches 3-4 level.

Comparative Example 3: Mordant with ferrous sulfate

2. Dyeing: add ferrous sulfate as mordant, dye bamboo fiber fabrics at 1g/L ferrous sulfate, bath ratio 1:47, time 75min, temperature 57℃.

The dyeing effects of Example 1 (salt as dye auxiliary) and Comparative Examples 1-3 are shown in Table 1:

Table 1

From the analysis of the above table:

①Using salt as a dyeing aid, the color fastness to rubbing of the dyed bamboo fiber fabric is improved compared with direct dyeing, and the staining degree is improved under the immersion of acid and alkali sweat respectively, the K/S value and the antibacterial property of the fabric Both are higher than direct dyeing.

②After dyeing bamboo fiber fabric with alum and ferrous sulfate as mordant, although the K/S value of the fabric is higher than that of direct dyeing, the antibacterial property of the fabric is slightly lower than that of direct dyeing, and the color fastness after dyeing is not ideal.

③The color fastness of the bamboo fiber fabric after mordant dyeing is not ideal, so alum and ferrous sulfate mordant dyeing are not used in the final dyeing experiment.

④Salt is used as a dyeing aid, which not only improves the color fastness of the fabric, but also improves the antibacterial property of the fabric compared with other dyeing methods, and the K/S value is also improved compared with direct dyeing.

Finally, salt is used as a dyeing aid to dye bamboo fiber fabrics.

The above descriptions are only preferred embodiments of the present invention and are not used to limit the present invention. For those skilled in the art, the present invention can have various modifications and changes. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention should be included in the protection scope of the present invention.

Claims

The application of ten major merits in bamboo fiber fabric products.
The application of the Ten Major Merit in bamboo fiber fabric products according to claim 1, characterized in that, the bamboo fiber fabric products include household clothing, underwear, children's and elderly clothing, etc., and also include other antibacterial products, such as towels, etc. Clean the fabric.
A method for dyeing bamboo fiber fabric, the dyeing method includes the steps of pretreatment, dyeing and post-treatment on the bamboo fiber fabric;

Wherein, the pretreatment includes desizing, scouring and bleaching the bamboo fiber fabric;

The dyeing is to dye the pre-treated bamboo fiber fabric with the extract of Ten Great Merits;

The post-treatment is soaping.
3. The method for dyeing bamboo fiber fabrics according to claim 3, wherein the desizing uses starch bioenzyme to steam the bamboo fiber fabrics;

Preferably, the desizing temperature is controlled at 85°C-90°C;

Preferably, the pH range of the desizing system is controlled at 5.0-8.0;

Preferably, the desizing time is 35 to 55 minutes;

Preferably, the bath ratio of the bamboo fiber fabric and the starch bio-enzyme solution is 1:30-40;

Preferably, the concentration of the starch bio-enzyme is 1.3-1.7 g/L alpha-starch bio-enzyme.
The method for dyeing bamboo fiber fabrics according to claim 3, wherein the scouring process includes heating and scouring with a scouring reagent, and the active ingredients in the scouring reagent are scouring enzyme LS and surfactant;

Preferably, the concentration of the scouring enzyme LS is 1.8-2.2 g/L;

Preferably, the concentration of the surfactant is 0.7-0.9 g/L;

Preferably, the bath ratio of the bamboo fiber fabric and the scouring reagent is 1:13-16;

Preferably, the pH value of the scouring reagent=8-10;

Preferably, the scouring temperature is 55-65°C, or the scouring time is 28-32 min.
3. The method for dyeing bamboo fiber fabrics according to claim 3, wherein the bleaching treatment adopts hydrogen peroxide and hydrogen peroxide biological enzymes.
The method for dyeing bamboo fiber fabrics according to claim 3, characterized in that alkaline hydrogen peroxide buffer and hydrogen peroxide are used for heating and bleaching under the condition of bath ratio 1:28-32;

Preferably, the alkaline hydrogen peroxide buffer is a mixed solution of Na 2 CO 3 , Na 2 SiO 3 , and NaOH, and the mass ratio of the three components is 2.8-3.2:4.8-5.2:1-1.4;

Preferably, the hydrogen peroxide concentration is 7-10g/L;

Preferably, the bleaching temperature is 90-100°C, or the time is 75-85 min.
The method for dyeing bamboo fiber fabrics according to claim 3, wherein the hydrogen peroxide biological enzyme treatment step is as follows: after removing the residual hydrogen peroxide in the fabric, adding hydrogen peroxide biological enzyme and heating at a bath ratio of 1:28-32 Stir

Preferably, the concentration of the hydrogen peroxide biological enzyme is 1.8-2.2 g/L;

Preferably, the temperature is 70-80°C, or the time is 65-75 min.
The method for dyeing bamboo fiber fabrics according to claim 3, characterized in that the preparation method of the ten mahoniaceae extract is as follows: using an alcohol solution with a concentration of 40-50% to heat extract and filter the mahonia mahonia leaves to obtain the filtrate , Repeating the above operation and combining multiple filtrates to obtain the ten mahoniaceae extract; preferably, the extraction temperature is 60-70° C., and the time is 40-50 min.
3. The method for dyeing bamboo fiber fabrics according to claim 3, wherein the dyeing process uses salt as a dyeing aid, preferably, the salt concentration is 2g/L;

Or the dyeing step parameters are as follows: bath ratio 1:43～47, temperature 52～57℃;

Or the soaping steps are as follows: soap powder 1.8-2.2g/L, temperature 43-47°C, bath ratio 1:22-27, soaping time 27-33min.