CN112831879A - Preparation method of keratin submicron fiber/wool composite antibacterial yarn - Google Patents
Preparation method of keratin submicron fiber/wool composite antibacterial yarn Download PDFInfo
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- CN112831879A CN112831879A CN202011615890.9A CN202011615890A CN112831879A CN 112831879 A CN112831879 A CN 112831879A CN 202011615890 A CN202011615890 A CN 202011615890A CN 112831879 A CN112831879 A CN 112831879A
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- antibacterial
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/02—Yarns or threads characterised by the material or by the materials from which they are made
- D02G3/04—Blended or other yarns or threads containing components made from different materials
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F1/00—General methods for the manufacture of artificial filaments or the like
- D01F1/02—Addition of substances to the spinning solution or to the melt
- D01F1/10—Other agents for modifying properties
- D01F1/103—Agents inhibiting growth of microorganisms
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- D—TEXTILES; PAPER
- D01—NATURAL OR MAN-MADE THREADS OR FIBRES; SPINNING
- D01F—CHEMICAL FEATURES IN THE MANUFACTURE OF ARTIFICIAL FILAMENTS, THREADS, FIBRES, BRISTLES OR RIBBONS; APPARATUS SPECIALLY ADAPTED FOR THE MANUFACTURE OF CARBON FILAMENTS
- D01F4/00—Monocomponent artificial filaments or the like of proteins; Manufacture thereof
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- D—TEXTILES; PAPER
- D02—YARNS; MECHANICAL FINISHING OF YARNS OR ROPES; WARPING OR BEAMING
- D02G—CRIMPING OR CURLING FIBRES, FILAMENTS, THREADS, OR YARNS; YARNS OR THREADS
- D02G3/00—Yarns or threads, e.g. fancy yarns; Processes or apparatus for the production thereof, not otherwise provided for
- D02G3/44—Yarns or threads characterised by the purpose for which they are designed
- D02G3/449—Yarns or threads with antibacterial properties
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- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2211/00—Protein-based fibres, e.g. animal fibres
- D10B2211/01—Natural animal fibres, e.g. keratin fibres
- D10B2211/02—Wool
-
- D—TEXTILES; PAPER
- D10—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B—INDEXING SCHEME ASSOCIATED WITH SUBLASSES OF SECTION D, RELATING TO TEXTILES
- D10B2211/00—Protein-based fibres, e.g. animal fibres
- D10B2211/20—Protein-derived artificial fibres
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- Engineering & Computer Science (AREA)
- Textile Engineering (AREA)
- Chemical & Material Sciences (AREA)
- Chemical Kinetics & Catalysis (AREA)
- General Chemical & Material Sciences (AREA)
- Mechanical Engineering (AREA)
- Manufacturing & Machinery (AREA)
- Treatments For Attaching Organic Compounds To Fibrous Goods (AREA)
- Chemical Or Physical Treatment Of Fibers (AREA)
Abstract
The invention relates to a preparation method of keratin submicron fiber/wool composite antibacterial yarn, which comprises the following steps: directly depositing the keratin antibacterial submicron fiber obtained by electrostatic spinning on a wool net to obtain the wool net containing the keratin antibacterial submicron fiber, and then obtaining the keratin submicron fiber/wool composite antibacterial yarn through subsequent carding and yarn-forming processes. Compared with an antibacterial after-finishing method, the preparation method is simple in operation process, low in cost, safe and environment-friendly, the prepared yarn is good in antibacterial effect and durable in performance, meanwhile, the recycling of the waste wool keratin is realized, the advantages of natural components of the pure wool yarn can be maintained, and the degradation is realized.
Description
Technical Field
The invention belongs to the field of preparation of functional yarns, and particularly relates to a preparation method of a keratin submicron fiber/wool composite antibacterial yarn.
Background
With the improvement of living standard of people, the demand of clothes functionality becomes more and more prominent. The antibacterial function has become a more basic accessory function in the field of clothes, and the demand is continuously rising.
The realization of the antibacterial function has two main technical means at present, namely an antibacterial auxiliary agent and an antibacterial fiber. Both approaches have certain drawbacks or limitations. For example, the method of the antibacterial auxiliary agent always has the problems of washing fastness, environmental protection, safety and the like; although the antibacterial fiber avoids some defects of the auxiliary agent, the antibacterial fiber can only be used for preparing blended antibacterial fabrics, and pure-spun antibacterial products, such as pure natural fiber antibacterial fabrics, cannot be obtained.
CN 111705387a method for preparing an antibacterial nanofiber/wool yarn by electrospinning, which realizes the preparation of an antibacterial wool yarn using a small amount of PAN fibers as a carrier, but the antibacterial wool yarn is still not a pure spun wool fiber, the amount of PAN is small, but the PAN component itself is a non-natural material, and the obtained yarn has no 100% biodegradability and biocompatibility, and in addition, the binding force is not as strong as the natural binding force between wool and keratin. The antimicrobial agent used in CN 111705387a is also not a natural material.
Disclosure of Invention
The invention aims to solve the technical problem of providing a preparation method of keratin submicron fiber/wool composite antibacterial yarn, which overcomes the defect that the wool antibacterial yarn of 100 percent pure natural material can not be obtained in the prior art by taking keratin extracted from waste wool as a binding carrier and taking chitosan of a natural extract as an antibacterial material, maintains the biodegradability and biocompatibility of the yarn at 100 percent, and has excellent binding fastness and more durable antibacterial effect.
The invention relates to a preparation method of keratin submicron fiber/wool composite antibacterial yarn, which comprises the following steps:
(1) dissolving wool keratin powder into a solvent, adding Sodium Dodecyl Sulfate (SDS), standing for 24-48 hours, and adding an antibacterial material to obtain an antibacterial spinning solution;
(2) and (2) performing electrostatic spinning on the antibacterial spinning solution obtained in the step (1), depositing the antibacterial spinning solution on a wool net to obtain the wool net containing the keratin antibacterial submicron fibers, and carding and forming yarns to obtain the keratin submicron fiber/wool composite antibacterial yarns.
The preferred mode of the above preparation method is as follows:
preferably, the wool keratin powder in the step (1) is waste wool keratin powder, and the molecular weight of the wool keratin is 30-100 KDa.
Preferably, the antibacterial material in the step (1) is chitosan, the molecular weight is 50-100KDa, and the deacetylation degree is 92-95%.
Preferably, the concentration of wool keratin in the antibacterial spinning solution in the step (1) is 10 to 30 wt%, the content of Sodium Dodecyl Sulfate (SDS) is 5 to 15 wt% (relative to the weight of keratin powder), and the concentration of chitosan is 5 to 10 wt% (relative to the content of solvent).
Preferably, the electrostatic spinning process parameters in the step (2) are as follows: the applied voltage of electrostatic spinning is 30kV, the spinning nozzle is a needle-free butterfly shape, the receiving distance is 15-25cm, the spinning temperature is 25-30 ℃, and the relative humidity of the environment is 30-65%.
Preferably, the wool net in the step (2) is obtained by carding wool, and in the carding process, the antibacterial spinning solution in the step (1) is subjected to electrostatic spinning through an electrostatic spinning device additionally arranged on a carding machine, so that the keratin antibacterial submicron fiber obtained by electrostatic spinning is deposited on the wool net.
Preferably, the content of the antibacterial submicron fiber in the wool web containing the antibacterial submicron fiber in the step (2) is 1000-1500 mg/kg.
Preferably, the subsequent yarn forming process in the step (2) is as follows: blending, carding, combing, drawing, roving, and spun yarn.
The keratin submicron fiber/wool composite antibacterial yarn prepared by the method is provided.
The invention relates to application of the keratin submicron fiber/wool composite antibacterial yarn.
Advantageous effects
According to the method for realizing the antibacterial functionalization of the wool yarns, provided by the invention, the purely natural wool keratin is taken as the carrier, so that the electrostatic spinning regenerated keratin fibers and the traditional wool have higher binding force, the chitosan with high acetyl degree is taken as an antibacterial material, the 100% biodegradable characteristic and biocompatibility of the whole yarns are realized, and the submicron fiber/wool composite yarns prepared by the method have more excellent antibacterial performance, better washing resistance, simple preparation process, low cost, safety and environmental friendliness, and can be widely applied to the field of biological medicines in the future.
The invention realizes the preparation of 100 percent pure natural wool antibacterial yarn, ensures the 100 percent biodegradability and biocompatibility of the yarn, which can not be realized by any previous technology.
Drawings
Figure 1 submicron keratin fibers are attached to wool fibers.
Detailed Description
The invention will be further illustrated with reference to the following specific examples. It should be understood that these examples are for illustrative purposes only and are not intended to limit the scope of the present invention. Further, it should be understood that various changes or modifications of the present invention may be made by those skilled in the art after reading the teaching of the present invention, and such equivalents may fall within the scope of the present invention as defined in the appended claims.
The waste wool keratin powder is prepared by self-made method, the waste wool keratin is extracted by mixed solution of L-cysteine and urea, and the specific process is as follows: dissolving wool in 8M urea solution at a bath ratio of 1:15, adding 10 wt% (relative to wool mass) of L-cysteine into the urea solution, adjusting pH to 10.5 with 50% NaOH solution, sealing the solution, dissolving in 85 deg.C water bath for 8h, filtering, centrifuging (15000RCF, 20min) to obtain supernatant, adjusting pH to 4 with hydrochloric acid to obtain precipitate for dissolving keratin, centrifuging for layering to obtain precipitate, washing with distilled water for 3 times, and oven drying at low temperature to obtain keratin powder with molecular weight of 50 KDa.
SDS (99.0%, sodium dodecyl sulfate), national pharmaceutical group chemicals limited; l-cysteine, national pharmaceutical group chemical reagents, Inc.; urea (99%), chemical reagents of national drug group, ltd; chitosan, Shandong Onkang Biotech Co., Ltd., molecular weight 50KDa, degree of deacetylation 92%; hexafluoroisopropanol, 99.5%, Shanghai Allatin Biotechnology GmbH. Escherichia coli (ATCC25922), Glochu bioengineering, Inc. of Shanghai; staphylococcus aureus (ATCC6538), Glochidion Shanghai bioengineering, Inc.
Referring to standard GB/20944.3-2008 < evaluation of antibacterial properties of textiles section III: the oscillating method quantitatively evaluates the antibacterial performance of the yarn.
Example 1
(1) Dissolving the extracted keratin powder in hexafluoroisopropanol solvent, adding 10 wt% SDS (relative to the weight of the keratin powder), and then standing at room temperature for 24 hours to obtain a spinning solution with the mass fraction of 20 wt%;
(2) 5 wt% of chitosan is added into the wool keratin spinning solution in the stirring process, the stirring speed is 500r/min, and the mixture is stirred for 5 hours at room temperature.
(3) Performing electrostatic spinning on the spinning solution obtained in the step (2) to obtain a wool web containing submicron fibers of chitosan, wherein the content of the antibacterial nano fibers in the wool web is 1000mg/kg, and the technological parameters of the electrostatic spinning are as follows: the voltage is 30kV, the acceptance distance is 15cm, the spinning environment temperature is 25 ℃, and the spinning environment humidity is 50%.
(4) And (4) the wool net containing the antibacterial nano fibers in the step (3) is subjected to strip forming and then enters subsequent yarn forming procedures of roving, spinning and the like, and finally the antibacterial composite yarn is obtained. The antimicrobial composite yarn can achieve a 92% degradation rate (weight percent) over a 6 month period under composting conditions.
Example 2
(1) Dissolving the extracted keratin powder in hexafluoroisopropanol solvent, adding 10 wt% SDS (relative to the weight of the keratin powder), and then standing at room temperature for 24 hours to obtain a spinning solution with the mass fraction of 20 wt%;
(2) adding 10 wt% chitosan into the waste wool keratin spinning solution while stirring at a stirring speed of 500r/min, and stirring for 5h at room temperature.
(3) Performing electrostatic spinning on the spinning solution obtained in the step (2) to obtain a wool web containing chitosan modified submicron fibers, wherein the content of the antibacterial nano fibers in the wool web is 1000mg/kg, and the technological parameters of the electrostatic spinning are as follows: the voltage is 30kV, the acceptance distance is 15cm, the spinning environment temperature is 25 ℃, and the spinning environment humidity is 50%.
(4) And (4) the wool net containing the antibacterial nano fibers in the step (3) is subjected to strip forming and then enters subsequent yarn forming procedures of roving, spinning and the like, and finally the antibacterial composite yarn is obtained. The antibacterial composite yarn can reach a degradation rate of 93 percent in 6 months under the composting condition.
Table 1 shows the antibacterial performance of the fabrics of examples 1 and 2 and a comparison sample after-finishing with 10 wt% chitosan (padding treatment, double padding and double rolling, liquid carrying rate of 70%, drying temperature of 120 ℃, time of 60S), and patent CN 111705387A (example 2). It can be seen that the invention has more excellent antibacterial performance.
Table 1 results of the tests for antibacterial properties of the yarns obtained in example 1 and example 2
| Item | Inhibition of E.coli/%) | Inhibition of Staphylococcus aureus/%) |
| Control sample | 68.45 | 54.56 |
| CN 111705387A (example 2) | 76.5 | 89.0 |
| Inventive example 1 | 87.56 | 98.36 |
| Inventive example 2 | 91.76 | 99.26 |
Table 2 shows the comparison of the tests of the antibacterial performance of the yarns obtained in example 1 and example 2 before washing and after washing, and it can be seen from table 2 that the antibacterial rate of the material is not significantly reduced after the yarns obtained in example 1 and example 2 are washed 15 times, and the washing fastness is excellent.
Table 2 example 1 and example 2 results of testing the antimicrobial properties of the yarns before and after washing
Claims (9)
1. A preparation method of a keratin submicron fiber/wool composite antibacterial yarn comprises the following steps:
(1) dissolving wool keratin powder into a solvent, adding Sodium Dodecyl Sulfate (SDS), standing for 24-48 hours, and adding an antibacterial material to obtain an antibacterial spinning solution;
(2) and (2) performing electrostatic spinning on the antibacterial spinning solution obtained in the step (1), depositing the antibacterial spinning solution on a wool net to obtain the wool net containing the keratin antibacterial submicron fibers, and carding and forming yarns to obtain the keratin submicron fiber/wool composite antibacterial yarns.
2. The method according to claim 1, wherein the molecular weight of the wool keratin in step (1) is 30 to 100 KDa; the antibacterial material is chitosan with molecular weight of 50-100KDa and deacetylation degree of 92-95%.
3. The preparation method according to claim 1, wherein the concentration of the wool keratin in the antibacterial spinning solution in the step (1) is 10 to 30 wt%, the content of Sodium Dodecyl Sulfate (SDS) is 5 to 15 wt%, and the content of chitosan is 5 to 10 wt%.
4. The preparation method according to claim 1, wherein the electrostatic spinning process parameters in the step (2) are as follows: the applied voltage of electrostatic spinning is 30kV, the spinning nozzle is a needle-free butterfly shape, the receiving distance is 15-25cm, the spinning temperature is 25-30 ℃, and the relative humidity of the environment is 30-65%.
5. The method of claim 1, wherein the step (2) is a step of carding wool to obtain a fleece.
6. The method as claimed in claim 1, wherein the content of the antibacterial submicron fiber in the web containing the antibacterial submicron fiber in the step (2) is 1000-1500 mg/kg.
7. The preparation method according to claim 1, wherein the subsequent yarn forming process in the step (2) is as follows: blending, carding, combing, drawing, roving, and spun yarn.
8. A keratin submicron fiber/wool composite antibacterial yarn prepared by the method of claim 1.
9. Use of the keratin submicron fiber/wool composite antimicrobial yarn according to claim 8.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202011615890.9A CN112831879A (en) | 2020-12-31 | 2020-12-31 | Preparation method of keratin submicron fiber/wool composite antibacterial yarn |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202011615890.9A CN112831879A (en) | 2020-12-31 | 2020-12-31 | Preparation method of keratin submicron fiber/wool composite antibacterial yarn |
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Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2187306A (en) * | 1937-07-28 | 1940-01-16 | Richard Schreiber Gastell | Artificial thread and method of producing same |
| CN103572448A (en) * | 2013-11-20 | 2014-02-12 | 东华大学 | Method for preparing nano-fiber blending composite yarn |
| CN106245165A (en) * | 2016-09-21 | 2016-12-21 | 武汉纺织大学 | The method of nano electrostatic spinning resultant yarn integrated with chopped fiber air vortex spinning |
| CN108035027A (en) * | 2018-01-05 | 2018-05-15 | 东华大学 | A kind of compound short fibre web mass of electrostatic spinning nano fiber prepares the device and method of mixed yarn |
| CN110373766A (en) * | 2019-06-27 | 2019-10-25 | 东华大学 | A kind of plasma wind disappears the device and operating method of electrostatic |
| CN111705387A (en) * | 2020-05-25 | 2020-09-25 | 东华大学 | Preparation method of electrostatic spinning nanofiber/wool antibacterial yarn |
-
2020
- 2020-12-31 CN CN202011615890.9A patent/CN112831879A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US2187306A (en) * | 1937-07-28 | 1940-01-16 | Richard Schreiber Gastell | Artificial thread and method of producing same |
| CN103572448A (en) * | 2013-11-20 | 2014-02-12 | 东华大学 | Method for preparing nano-fiber blending composite yarn |
| CN106245165A (en) * | 2016-09-21 | 2016-12-21 | 武汉纺织大学 | The method of nano electrostatic spinning resultant yarn integrated with chopped fiber air vortex spinning |
| CN108035027A (en) * | 2018-01-05 | 2018-05-15 | 东华大学 | A kind of compound short fibre web mass of electrostatic spinning nano fiber prepares the device and method of mixed yarn |
| CN110373766A (en) * | 2019-06-27 | 2019-10-25 | 东华大学 | A kind of plasma wind disappears the device and operating method of electrostatic |
| CN111705387A (en) * | 2020-05-25 | 2020-09-25 | 东华大学 | Preparation method of electrostatic spinning nanofiber/wool antibacterial yarn |
Non-Patent Citations (1)
| Title |
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| 徐恒星等: ""羊毛角蛋白的提取及其成膜性"", 《纺织学报》 * |
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Application publication date: 20210525 |