CN114703664A - Method for carrying out crosslinking reaction on wool fabric to load chitosan - Google Patents
Method for carrying out crosslinking reaction on wool fabric to load chitosan Download PDFInfo
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- CN114703664A CN114703664A CN202210498316.2A CN202210498316A CN114703664A CN 114703664 A CN114703664 A CN 114703664A CN 202210498316 A CN202210498316 A CN 202210498316A CN 114703664 A CN114703664 A CN 114703664A
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M15/00—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment
- D06M15/01—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with natural macromolecular compounds or derivatives thereof
- D06M15/03—Polysaccharides or derivatives thereof
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M13/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment
- D06M13/322—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with non-macromolecular organic compounds; Such treatment combined with mechanical treatment with compounds containing nitrogen
- D06M13/402—Amides imides, sulfamic acids
- D06M13/432—Urea, thiourea or derivatives thereof, e.g. biurets; Urea-inclusion compounds; Dicyanamides; Carbodiimides; Guanidines, e.g. dicyandiamides
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- D—TEXTILES; PAPER
- D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
- D06M—TREATMENT, NOT PROVIDED FOR ELSEWHERE IN CLASS D06, OF FIBRES, THREADS, YARNS, FABRICS, FEATHERS OR FIBROUS GOODS MADE FROM SUCH MATERIALS
- D06M2101/00—Chemical constitution of the fibres, threads, yarns, fabrics or fibrous goods made from such materials, to be treated
- D06M2101/02—Natural fibres, other than mineral fibres
- D06M2101/10—Animal fibres
- D06M2101/12—Keratin fibres or silk
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02P—CLIMATE CHANGE MITIGATION TECHNOLOGIES IN THE PRODUCTION OR PROCESSING OF GOODS
- Y02P70/00—Climate change mitigation technologies in the production process for final industrial or consumer products
- Y02P70/50—Manufacturing or production processes characterised by the final manufactured product
- Y02P70/62—Manufacturing or production processes characterised by the final manufactured product related technologies for production or treatment of textile or flexible materials or products thereof, including footwear
Abstract
The invention discloses a method for carrying out crosslinking reaction on wool fabric to load chitosan, which comprises the steps of preparing a chitosan solution with the concentration of 10-30g/L, then carrying out secondary rolling on the wool fabric at room temperature by using a padder, wherein the rolling residual rate is 85% -95%, and drying for later use; preparing a cross-linking agent, uniformly stirring at room temperature, then soaking the wool fabric which is padded with the chitosan solution and dried in the cross-linking agent for cross-linking, washing the wool fabric with deionized water after cross-linking, and then drying to obtain the chitosan-loaded wool fabric. The method is simple and easy to implement, short in operation flow, capable of realizing large-scale production and low in required energy consumption.
Description
Technical Field
The invention relates to a textile modification method, in particular to a method for developing a shell fabric loaded with chitosan through a crosslinking reaction on wool, and belongs to the technical field of textile modification.
Background
As an important natural protein fiber, the fabric of the wool has various excellent performances of gloss, softness, warmness, biodegradability and the like, is widely applied to the textile industry, and is favored by people. However, the presence of scales on wool fibers causes a friction effect of the wool felt and brings about a strong hydrophobic property, which hinders penetration and diffusion of the dye, resulting in poor printing effect and low fixation rate.
Chitosan is a natural high molecular compound with rich resources, excellent performance and wide application, and is often used in the textile industry in the aspects of antibacterial finishing, crease-resistant finishing, anti-felting finishing, printing and dyeing auxiliaries and the like.
At present, there are two methods for loading chitosan on wool fabric: one is to carry out chemical modification on chitosan and then load the chitosan on wool fabrics through chemical reaction; the other is cross-linked grafting of chitosan with caffeic acid, citric acid, etc. The first method has the disadvantages of complicated steps, low efficiency, long time period and unsuitability for large-scale production. The second method has high energy consumption, and basically needs to carry out multiple baking reactions at the temperature of more than 120 ℃, thereby causing great energy loss.
Disclosure of Invention
The invention aims to solve the technical problem of providing a method for loading chitosan by carrying out crosslinking reaction on wool fabric aiming at the defects in the prior art, and the method is simple and easy to implement, short in operation flow, capable of realizing large-scale production and low in required energy consumption.
In order to achieve the purpose, the invention adopts the following technical scheme:
a method for carrying out a crosslinking reaction on wool fabric to load chitosan adopts a padding-crosslinking method to load chitosan on the wool fabric, and specifically comprises the following steps:
(1) preparing a chitosan solution with the concentration of 10-30g/L, then carrying out secondary rolling on the wool fabric at room temperature by using a rolling machine, wherein the rolling residual rate is 85% -95%, and drying for later use;
(2) and (2) preparing a cross-linking agent, uniformly stirring at room temperature, soaking the wool fabric which is padded with the chitosan solution and dried in the step (1) in the cross-linking agent for cross-linking, washing the wool fabric with deionized water after cross-linking is finished, and drying to obtain the chitosan-loaded wool fabric.
In the above technical scheme, in the step (1), the concentration of the chitosan solution is preferably 20 g/L; the rolling allowance at the time of padding is preferably 90%.
In the technical scheme, in the step (1), the drying temperature is 60-80 ℃, and the drying time is 3-10 min; the drying temperature is preferably 60 ℃, and the drying temperature is preferably 5 min.
In the above technical solution, in the step (2), the crosslinking agent is prepared by dissolving 1.91g carbodiimide hydrochloride in 100ml absolute ethanol, and stirring uniformly.
In the technical scheme, in the step (2), the temperature during crosslinking is 48-52 ℃ and the time is 0.5-2 h; the temperature of the crosslinking is preferably 50 ℃ and the time is preferably 1 h.
In the above technical solution, in the step (2), when washing with deionized water, the number of washing times is 3.
In the technical scheme, in the step (2), the drying temperature is 60-80 ℃ after the crosslinking is finished, and the drying time is 3-10 min; the drying temperature is preferably 60 ℃ and the drying time is preferably 5 min.
Compared with the prior art, the method has the advantages of simple process flow, short production period and energy conservation, and the prepared wool fabric has better wettability and printing performance.
Drawings
FIG. 1 is an electron microscope image of chitosan-loaded wool fabric obtained in example 1;
FIG. 2 is a bar graph of the change in wettability of chitosan-loaded wool fabric obtained in example 1;
FIG. 3 is a point line graph showing the change in the felting rate of chitosan-loaded wool fabrics obtained in example 1.
Detailed Description
The following detailed description of the embodiments of the present invention is provided, but the present invention is not limited to the following descriptions:
example 1:
a method for carrying out a crosslinking reaction on wool fabric to load chitosan adopts a padding-crosslinking method to load chitosan on the wool fabric, and specifically comprises the following steps:
(1) preparing a chitosan solution with the concentration of 20g/L, then carrying out secondary rolling on the wool fabric at room temperature by using a padder, wherein the rolling residual rate is 90%, and drying for 5min at 60 ℃ for later use;
(2) dissolving 1.91g of carbodiimide hydrochloride in 100ml of absolute ethyl alcohol, uniformly stirring at room temperature to obtain a cross-linking agent, then soaking the wool fabric padded with the chitosan solution and dried in the step (1) in the cross-linking agent, and crosslinking at 50 ℃ for 1 h; washing the wool fabric with deionized water for 3 times after cross-linking, and drying at 60 deg.C for 5 min; finally obtaining the wool fabric loaded with chitosan.
An electron microscope image of the chitosan-loaded wool fabric obtained in this example is shown in fig. 1, the surface of the crosslinked wool fabric is obviously covered by a layer of film, and the chitosan can be successfully grafted according to the appearance. The wettability change of the chitosan-loaded wool fabric obtained in this example is shown in fig. 2, the contact angle of the original wool fabric is about 137 °, the hydrophobicity is very strong, the contact angle of the crosslinked chitosan-loaded wool fabric is about 102 °, and the wettability of the crosslinked wool fabric is significantly improved, which is presumed to be caused by the successful grafting of chitosan on the wool fabric. The felting rate change of the chitosan-loaded wool fabric obtained in this example is shown in fig. 3, and the felting area shrinkage of the raw wool is 11.5% and the area shrinkage of the wool after chitosan crosslinking is 6.4% in the washing process, which indicates that chitosan exists on the surface of the wool fiber scale layer, and the friction coefficient between fibers is reduced.
Example 2:
a method for carrying out a crosslinking reaction on wool fabric to load chitosan adopts a padding-crosslinking method to load chitosan on the wool fabric, and specifically comprises the following steps:
(1) preparing a chitosan solution with the concentration of 22g/L, then carrying out two-time rolling on the wool fabric at room temperature by adopting a padding method, wherein the rolling residual rate is 87%, and drying for 3min at 60 ℃ for later use;
(2) dissolving 1.91g of carbodiimide hydrochloride in 100ml of absolute ethyl alcohol, uniformly stirring at room temperature to obtain a cross-linking agent, then soaking the wool fabric padded with the chitosan solution and dried in the step (1) in the cross-linking agent, and crosslinking at 50 ℃ for 1 h; drying the wool fabric at 60 ℃ for 3min after the cross-linking; and finally, washing the wool fabric with deionized water for 3 times to obtain the chitosan-loaded wool fabric.
Example 3:
a method for carrying out a crosslinking reaction on wool fabric to load chitosan adopts a padding-crosslinking method to load chitosan on the wool fabric, and specifically comprises the following steps:
(1) preparing a chitosan solution with the concentration of 18g/L, then carrying out two-time rolling on the wool fabric at room temperature by adopting a padding method, wherein the rolling residual rate is 92%, and drying for 10min at 60 ℃ for later use;
(2) dissolving 1.91g of carbodiimide hydrochloride in 100ml of absolute ethyl alcohol, uniformly stirring at room temperature to obtain a cross-linking agent, then soaking the wool fabric padded with the chitosan solution and dried in the step (1) in the cross-linking agent, and crosslinking at 50 ℃ for 1 h; drying the wool fabric at 60 ℃ for 10min after the cross-linking; and finally, washing the wool fabric with deionized water for 3 times to obtain the chitosan-loaded wool fabric.
The above examples are only for illustrating the technical concept and features of the present invention, and are not intended to limit the scope of the present invention. All equivalent changes or modifications made according to the spirit of the present invention should be covered within the protection scope of the present invention.
Claims (7)
1. A method for carrying out a crosslinking reaction on wool fabric to load chitosan adopts a padding-crosslinking method to load chitosan on the wool fabric, and is characterized by comprising the following steps:
(1) preparing a chitosan solution with the concentration of 10-30g/L, then carrying out secondary rolling on the wool fabric at room temperature by using a rolling machine, wherein the rolling residual rate is 85% -95%, and drying for later use;
(2) and (2) preparing a cross-linking agent, uniformly stirring at room temperature, soaking the wool fabric which is padded with the chitosan solution and dried in the step (1) in the cross-linking agent for cross-linking, washing the wool fabric with deionized water after cross-linking is finished, and drying to obtain the chitosan-loaded wool fabric.
2. The method according to claim 1, wherein in the step (1), the chitosan solution has a concentration of 20 g/L; the rolling allowance in padding was 90%.
3. The method according to claim 1, wherein in the step (1), the drying temperature is 60-80 ℃ and the drying time is 3-10 min.
4. The method according to claim 1, wherein in the step (2), the crosslinking agent is prepared by dissolving 1.91g of carbodiimide hydrochloride in 100ml of absolute ethanol and stirring the solution uniformly.
5. The method according to claim 1, wherein in the step (2), the temperature for crosslinking is 48-52 ℃ and the time is 0.5-2 h.
6. The method according to claim 1, wherein in the step (2), the number of washing is 3 when washing with deionized water.
7. The method according to claim 1, wherein in the step (2), the drying temperature after the crosslinking is finished is 60 to 80 ℃ and the time is 3 to 10 min.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210498316.2A CN114703664A (en) | 2022-05-09 | 2022-05-09 | Method for carrying out crosslinking reaction on wool fabric to load chitosan |
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| CN202210498316.2A CN114703664A (en) | 2022-05-09 | 2022-05-09 | Method for carrying out crosslinking reaction on wool fabric to load chitosan |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115262226A (en) * | 2022-07-11 | 2022-11-01 | 江南大学 | Method for preparing thermal wool fabric based on chitosan |
Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103981708A (en) * | 2014-04-23 | 2014-08-13 | 桐乡市濮院毛针织技术服务中心 | Shrinkproof finishing method for wool fabric |
| CN108601860A (en) * | 2016-02-12 | 2018-09-28 | 金珂生物医疗公司 | Chitosan ultrafine fiber system |
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2022
- 2022-05-09 CN CN202210498316.2A patent/CN114703664A/en active Pending
Patent Citations (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103981708A (en) * | 2014-04-23 | 2014-08-13 | 桐乡市濮院毛针织技术服务中心 | Shrinkproof finishing method for wool fabric |
| CN108601860A (en) * | 2016-02-12 | 2018-09-28 | 金珂生物医疗公司 | Chitosan ultrafine fiber system |
Non-Patent Citations (1)
| Title |
|---|
| R STEPHEN DAVIDSON: "Improving the dyeability of wool by treatment with chitosan", 《JOURNAL OF THE SOCIETY OF DYES AND COLOURISTS》, pages 448 - 29 * |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115262226A (en) * | 2022-07-11 | 2022-11-01 | 江南大学 | Method for preparing thermal wool fabric based on chitosan |
| CN115262226B (en) * | 2022-07-11 | 2023-12-05 | 江南大学 | Method for preparing warm-keeping wool fabric based on chitosan |
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