CN111826962B - Antibacterial finishing method for mercerized wool fabric - Google Patents
Antibacterial finishing method for mercerized wool fabric Download PDFInfo
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- CN111826962B CN111826962B CN202010765980.XA CN202010765980A CN111826962B CN 111826962 B CN111826962 B CN 111826962B CN 202010765980 A CN202010765980 A CN 202010765980A CN 111826962 B CN111826962 B CN 111826962B
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- wool fabric
- mercerized wool
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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
- D06M15/19—Treating fibres, threads, yarns, fabrics, or fibrous goods made from such materials, with macromolecular compounds; Such treatment combined with mechanical treatment with synthetic macromolecular compounds
- D06M15/37—Macromolecular compounds obtained otherwise than by reactions only involving carbon-to-carbon unsaturated bonds
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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
- D06M11/00—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising
- D06M11/68—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with phosphorus or compounds thereof, e.g. with chlorophosphonic acid or salts thereof
- D06M11/70—Treating fibres, threads, yarns, fabrics or fibrous goods made from such materials, with inorganic substances or complexes thereof; Such treatment combined with mechanical treatment, e.g. mercerising with phosphorus or compounds thereof, e.g. with chlorophosphonic acid or salts thereof with oxides of phosphorus; with hypophosphorous, phosphorous or phosphoric acids or their salts
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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
- D06M13/10—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 oxygen
- D06M13/184—Carboxylic acids; Anhydrides, halides or salts thereof
- D06M13/207—Substituted carboxylic acids, e.g. by hydroxy or keto groups; Anhydrides, halides or salts thereof
-
- 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
- D06M16/00—Biochemical treatment of fibres, threads, yarns, fabrics, or fibrous goods made from such materials, e.g. enzymatic
-
- 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
Abstract
The invention discloses an antibacterial finishing method of mercerized wool fabric, which comprises the following steps: s1, dissolving sodium hypophosphite and citric acid in water to prepare a pretreatment solution, soaking the mercerized wool fabric in the pretreatment solution at normal temperature, taking out and drying the mercerized wool fabric, baking the mercerized wool fabric for 60-100S at 135-150 ℃, and cleaning and drying the mercerized wool fabric; s2, diluting water glass with distilled water, adding the diluted water glass solution into an aqueous solution containing citric acid and polyhexamethylene biguanide hydrochloride antibacterial agent under stirring, and violently stirring the mixed solution at 25-50 ℃ to obtain a uniform sol finishing solution; s3: and (3) padding and finishing the mercerized wool fabric obtained in the S1 by adopting the sol finishing liquid obtained in the S2, wherein the padding rate is 70-80%, drying is carried out, and the mercerized wool fabric is baked for 90-140S at 160-170 ℃. In the antibacterial finishing method of the mercerized wool fabric, the sol, the citric acid, the antibacterial agent and the wool are crosslinked, so that the antibacterial agent is fixed on the surface of the mercerized wool, and the washability of the antibacterial mercerized wool fabric is improved.
Description
Technical Field
The invention relates to the technical field of wool fabric production, in particular to an antibacterial finishing method of mercerized wool fabric.
Background
The wool fiber belongs to protein fiber, and the antibacterial finishing is a main way for improving the antibacterial performance of the mercerized wool fabric. The textile antibacterial finishing agent can be divided into the following components according to antibacterial materials: inorganic antibacterial materials, organic antibacterial materials, natural antibacterial materials. The inorganic antibacterial material usually comprises silver ions and a nano photocatalytic material, the organic antibacterial material mainly comprises medicinal antibacterial agents such as quaternary ammonium salts, biguanides and imidazoles, and the natural antibacterial agent mainly comprises animal and plant extracted antibacterial agents such as chitosan. The safety of polyhexamethylene biguanide hydrochloride in organic antibacterial materials has been widely accepted.
For example, as described in "research on antibacterial performance of polyhexamethylene biguanide hydrochloride antibacterial agent on wool fabric" in "Shanghai Ma technology" 2009, 2 nd phase, the finishing process includes two steps of oxidation treatment and antibacterial finishing of wool fabric, hydrogen peroxide is used as an oxidant in the oxidation treatment, citric acid is added in the antibacterial finishing agent, and polycarboxylic citric acid plays a role in bridging, so that effective crosslinking is formed between wool molecules. However, when the terminal carboxyl groups are esterified, two molecules of citric acid can form effective cross-linking between wool molecules; when the antibacterial agent is baked at a high temperature, an amide bond is possibly formed between the antibacterial agent and the carboxylic acid, so that the polycarboxylic acid cannot form anhydride, and the multi-end crosslinking of the carboxylic acid and wool is reduced, so that the antibacterial property and washability of the antibacterial agent finished wool fabric are limited to a certain extent.
Disclosure of Invention
One of the purposes of the invention is to overcome the defects in the prior art and provide an antibacterial finishing method for mercerized wool fabrics, wherein polyhexamethylene biguanide hydrochloride is finished on the surface of the mercerized wool fibers by utilizing the bridging action of citric acid and the negative charge adsorption and hydroxyl of silica sol particles in the sol finishing liquid, and the finished fabrics have good washing fastness in antibacterial performance.
In order to achieve the technical effects, the technical scheme of the invention is as follows: an antibacterial finishing method of mercerized wool fabric is characterized by comprising the following steps:
s1, dissolving sodium hypophosphite and citric acid in water to prepare a pretreatment solution, soaking the mercerized wool fabric in the pretreatment solution at normal temperature, taking out and drying the mercerized wool fabric, baking the mercerized wool fabric for 60-100S at 135-150 ℃, and cleaning and drying the mercerized wool fabric;
s2, diluting water glass with distilled water, adding the diluted water glass solution into an aqueous solution containing citric acid and polyhexamethylene biguanide hydrochloride antibacterial agent under stirring, and violently stirring the mixed solution at 25-50 ℃ to obtain a uniform sol finishing solution;
s3: and (3) padding and finishing the mercerized wool fabric obtained in the step (S1) by adopting the sol finishing liquid obtained in the step (S2), wherein the padding rate is 70-80%, drying is carried out, and the mercerized wool fabric is baked for 90-140S at the temperature of 160-170 ℃.
The preferable technical scheme is that the mass percent of sodium hypophosphite in the pretreatment liquid is 2.5-4%, and the mass percent of citric acid in the pretreatment liquid is 1-2.5%. The sodium hypophosphite has the function of catalyzing the reaction of citric acid and hydroxyl on the surface of the mercerized wool fibers. When the mass percent of the citric acid in the pretreatment liquid is more than 2.5%, the citric acid is excessive, and the citric acid is dehydrated to generate organic acid with unsaturated double bonds after pretreatment baking, so that the whiteness of the mercerized wool fabric is obviously reduced.
The preferable technical scheme is that the mass percent of citric acid in the sol finishing liquid is 0.5-1.5%. The citric acid in the sol conditioning solution reacts with the hydroxyl groups of the silica sol and the amino groups of the polyhexamethylene biguanide hydrochloride antibacterial agent. The washability of the antibacterial mercerized wool fabric is affected if the citric acid content in the sol finishing liquid is too low, and the stability of a finishing liquid sol system is affected if the citric acid concentration in the sol finishing liquid is too high, besides the fabric whiteness.
The preferable technical scheme is that the silicon content in the sol finishing liquid is 0.7-1.4%, and the mass percentage of the polyhexamethylene biguanide hydrochloride antibacterial agent is 0.4-1.2%. The antibacterial agent is crosslinked with the hydroxyl of the silica sol through the lemon, and can also be coated between silicon dioxide layers and slowly released in the subsequent use process. If the silicon content is too low, the initial antibacterial performance and antibacterial durability of the mercerized wool fabric are affected. If the silicon content is too high, the soft and glutinous hand feeling of the mercerized wool can be affected.
The preferable technical scheme is that the sol finishing liquid also contains a pH value regulator, and the pH value of the sol finishing liquid is 7-10. The polyhexamethylene biguanide hydrochloride has high activity, is positively charged after being dissolved in water, and is negatively charged due to the fact that hydroxide radicals are adsorbed on the surface of alkaline silica sol particles, so that the polyhexamethylene biguanide hydrochloride with positive charges is easily adsorbed on the silica sol particles.
The preferable technical scheme is that the pH value of the sol finishing liquid is 8-9. The sol ions have large charges under the pH value, the adsorption effect on the polyhexamethylene biguanide hydrochloride is stronger, and the fixation amount of the polyhexamethylene biguanide hydrochloride on the surface of the mercerized wool is favorably improved.
The invention has the advantages and beneficial effects that:
the antibacterial finishing method of the mercerized wool fabric comprises the steps of pretreating the mercerized wool fabric by using citric acid, introducing more carboxyl groups on the surface of wool, adsorbing by using hydrogen bonds and charges of silica sol and citric acid and polyhexamethylene biguanide hydrochloride in finishing liquid, and enabling the antibacterial agent to be fixed on the surface of the mercerized wool by crosslinking among the sol, the citric acid, the antibacterial agent and the wool in the baking process, so that the washfastness of the antibacterial mercerized wool fabric is improved.
Detailed Description
The following further describes embodiments of the present invention with reference to examples. The following examples are only for illustrating the technical solutions of the present invention more clearly, and the protection scope of the present invention is not limited thereby.
The specifications of the wool fabric are as follows: 100% of mercerized wool fabric, the wool fiber of the mercerized wool fabric is subjected to chlorination mercerization, and the fabric is from the following sources: jiangsu sunshine group.
Example 1
Example 1 a method of antibacterial finishing of mercerised wool fabric includes the steps of:
s1, dissolving sodium hypophosphite and citric acid in water to prepare a pretreatment solution, wherein the mass percent of the sodium hypophosphite in the pretreatment solution is 2.5%, and the mass percent of the citric acid in the pretreatment solution is 1%; soaking the mercerized wool fabric in pretreatment liquid at normal temperature, taking out and drying the mercerized wool fabric at a bath ratio of 1:25, baking the mercerized wool fabric for 100s at 145-150 ℃, cleaning and drying;
s2, diluting water glass with distilled water, adding the diluted water glass solution into an aqueous solution containing citric acid, a polyhexamethylene biguanide hydrochloride antibacterial agent and a pH value regulator under stirring, and violently stirring the mixed solution at 45-50 ℃ to obtain a uniform sol finishing solution, wherein the mass percent of the citric acid in the sol finishing solution is 1%, the silicon content in the sol finishing solution is 1, the mass percent of the polyhexamethylene biguanide hydrochloride antibacterial agent is 0.8%, and the pH value of the sol finishing solution is 8;
s3: and (3) soaking the sol finishing liquid obtained in the step (S2) on an electric small padder for two times, rolling and finishing the mercerized wool fabric obtained in the step (S1), wherein the rolling residual rate is 80%, and drying is carried out for 120S at the temperature of 165-170 ℃.
Examples 2 to 3
Examples 2-3 are based on example 1, except that in example 2S1 the mass percent of sodium hypophosphite was 4%, and the mass percent of citric acid in the pretreatment solution was 2.5%; in example 3S 1, the sodium hypophosphite was 5% by mass, and the citric acid was 3.5% by mass in the pretreatment liquid.
Examples 4 to 5
Examples 4-5 are based on example 1, except that the sol finishing liquor of example 4 has a pH of 7 and the sol finishing liquor of example 5 has a pH of 10.
Examples 6 to 8
Examples 6-8 are based on example 1 with the difference that the mass percent of citric acid in the sol finishing liquor of example 6 is 0.1%, the silicon content in the sol finishing liquor of example 7 is 1.4%, and the silicon content in the sol finishing liquor of example 8 is 2%.
Example 9
Example 9 is based on example 1, except that the baking temperature in S1 is 165 to 170 ℃, and the baking time is the same as that in example 1.
Example 10
Example 10 is based on example 1, with the difference that the baking temperature in S3 is 145-150 ℃.
Comparative example
Comparative example 1 is based on example 1 except that comparative example 2 finishes the wool fabric obtained in S1 with a finishing liquor comprising citric acid, a biguanide hydrochloride antibacterial agent and a pH adjusting agent, and the mass percentages of citric acid and the biguanide hydrochloride antibacterial agent and the pH of the finishing liquor in the finishing liquor of comparative example 1 are the same as in example 1.
Comparative example 2 is based on example 1, except that comparative example 2 finishes the wool fabric obtained in S1 with a finishing liquor comprising silica sol, a biguanide hydrochloride antibacterial agent and a pH adjuster.
The pH regulator used in the examples was hydrochloric acid or sodium hydroxide solution.
The samples obtained in the examples and comparative examples were tested as follows:
1. whiteness of the samples of examples 1-3 and example 9 was measured on a DATACOLOR model SF600 computer color measuring and matching instrument;
2. testing the bacteriostatic value and bactericidal value of the antibacterial fabric by referring to Japanese Industrial Standard JIS L1902:2002, wherein the strain is Staphylococcus aureus, and the concentration of the inoculated bacterial liquid is 1 x 10 8 cFU/ml, the bacteria activity value is 2.5, and the viable bacteria counting method is an inverted plate method;
3. water resistance test of bactericidal performance: washing the mercerized wool fabric for 20 times according to the washing standard of the International wool agency TM31 wool textile product, and determining the bacteriostatic value and bactericidal value of the washed mercerized wool fabric according to the methods 1 and 2;
the whiteness of the samples of examples 1-3 and 9 was found to be 28.54, 27.28, 25.97, 24.05, respectively. The data show that the excessive citric acid consumption or the excessive baking temperature in the pretreatment liquid is not beneficial to keeping the whiteness of the fabric.
Examples 1 to 9 and comparative examples 1 to 2 had a bacteriostatic value of 3.57, 3.73, 3.70, 3.38, 3.54, 3.19, 3.81, 3.85, 3.80, 3.67, 2.84, 3.02 and a bactericidal value of 1.0, 1.1, 0.8, 0.9, 0.7, 1.2, 1.1, 0.4, 0.6, respectively;
after 20 times of standard washing, the bacteriostatic value and bactericidal value of the mercerized wool fabric are reduced, after 20 times of washing, the bacteriostatic values of example 1 and example 8 are 2.87 and 2.74 respectively, and the bacteriostatic values of comparative example 1 and comparative example 2 are 1.57 and 1.79 respectively; the bactericidal values of example 1 and example 8 after 20 washes were 0.4 and 0.2, respectively, and the bactericidal values of comparative example 1 and comparative example 2 were less than 0.
The sol finishing solution containing silica sol and citric acid is beneficial to fixing the antibacterial agent on the wool fabric, and the silica sol or citric acid alone can improve the fixing effect of the antibacterial agent, but the corresponding improvement effect is poorer than that of the silica sol and the citric acid which simultaneously act. The silicon content in the silica sol is too high, which is not beneficial to maintaining the antibacterial performance and the water washing resistance of the mercerized wool fabric.
The foregoing is only a preferred embodiment of the present invention, and it should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the technical principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (5)
1. An antibacterial finishing method of mercerized wool fabric is characterized by comprising the following steps:
s1, dissolving sodium hypophosphite and citric acid in water to prepare a pretreatment solution, soaking the mercerized wool fabric in the pretreatment solution at normal temperature, taking out and drying the mercerized wool fabric, baking the mercerized wool fabric for 60-100S at 135-150 ℃, and cleaning and drying the mercerized wool fabric;
s2, diluting water glass with distilled water, adding the diluted water glass solution into an aqueous solution containing citric acid and polyhexamethylene biguanide hydrochloride antibacterial agent under stirring, and violently stirring the mixed solution at 25-50 ℃ to obtain a uniform sol finishing solution;
s3: padding and finishing the mercerized wool fabric obtained in the step S1 by adopting the sol finishing liquid obtained in the step S2, wherein the padding rate is 70-80%, drying, and baking for 90-140S at 160-170 ℃;
the sol finishing liquid also contains a pH value regulator, and the pH value of the sol finishing liquid is 7-10.
2. The method for antibacterial finishing of mercerized wool fabric according to claim 1, wherein the mass percentage of sodium hypophosphite in the pretreatment solution is 2.5-4%, and the mass percentage of citric acid in the pretreatment solution is 1-2.5%.
3. The antibacterial finishing method of mercerized wool fabric according to claim 1, wherein the mass percentage of citric acid in the sol finishing liquid is 0.5-1.5%.
4. A method for the antibacterial finishing of mercerized wool fabric according to claim 1 or 3, wherein the silicon content in the sol finishing liquid is 0.5-1.4%, and the mass percentage of the polyhexamethylene biguanide hydrochloride antibacterial agent is 0.4-1.2%.
5. The antibacterial finishing method of mercerized wool fabric according to claim 1, wherein the pH value of the sol finishing liquid is 8-9.
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| Application Number | Priority Date | Filing Date | Title |
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| CN202010765980.XA CN111826962B (en) | 2020-08-03 | 2020-08-03 | Antibacterial finishing method for mercerized wool fabric |
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| CN202010765980.XA CN111826962B (en) | 2020-08-03 | 2020-08-03 | Antibacterial finishing method for mercerized wool fabric |
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| CN111826962B true CN111826962B (en) | 2022-08-02 |
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| CN113430821A (en) * | 2021-06-24 | 2021-09-24 | 苏州市德赫亚新纺织科技有限公司 | Preparation method of wool blended fabric with anti-pilling and antibacterial effects |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3216779A (en) * | 1959-10-08 | 1965-11-09 | Bradford Dyers Ass Ltd | Textile materials and process for manufacturing them |
| CN101649549A (en) * | 2009-09-07 | 2010-02-17 | 东华大学 | Multifunctional modification processing method for wool |
| CN101671949A (en) * | 2009-10-14 | 2010-03-17 | 东华大学 | Method for microwave chemical modification treatment of wool |
| CN103882682A (en) * | 2012-12-22 | 2014-06-25 | 青岛同冠王实业有限公司 | Production method of antimicrobial wool fabric |
| CN105862385A (en) * | 2016-06-14 | 2016-08-17 | 绍兴文理学院 | Multifunctional modification treatment method for silk |
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2020
- 2020-08-03 CN CN202010765980.XA patent/CN111826962B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US3216779A (en) * | 1959-10-08 | 1965-11-09 | Bradford Dyers Ass Ltd | Textile materials and process for manufacturing them |
| CN101649549A (en) * | 2009-09-07 | 2010-02-17 | 东华大学 | Multifunctional modification processing method for wool |
| CN101671949A (en) * | 2009-10-14 | 2010-03-17 | 东华大学 | Method for microwave chemical modification treatment of wool |
| CN103882682A (en) * | 2012-12-22 | 2014-06-25 | 青岛同冠王实业有限公司 | Production method of antimicrobial wool fabric |
| CN105862385A (en) * | 2016-06-14 | 2016-08-17 | 绍兴文理学院 | Multifunctional modification treatment method for silk |
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