CN103881035A - Anti-bacterial finishing agent for fabric - Google Patents
Anti-bacterial finishing agent for fabric Download PDFInfo
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- CN103881035A CN103881035A CN201310567946.1A CN201310567946A CN103881035A CN 103881035 A CN103881035 A CN 103881035A CN 201310567946 A CN201310567946 A CN 201310567946A CN 103881035 A CN103881035 A CN 103881035A
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Abstract
The invention relates to an anti-bacterial finishing agent for a fabric. The anti-bacterial finishing agent is prepared by reacting polymerizable polyurethane prepolymer, acrylic acid, an initiating agent, an ammoniacal silver nitrate solution, a reducing agent and water. The anti-bacterial finishing agent with a molecular chain surface containing silver ions is obtained from a high-molecular emulsion which takes polyurethane as a main part and contains a right amount of carboxyl in a molecular chain by reacting carboxyl and the ammoniacal silver nitrate solution in the presence of a catalyst. The anti-bacterial finishing agent disclosed by the invention overcomes the defects of digestion and transfer of a silver-loaded anti-bacterial agent and enhances the durability of the silver-loaded anti-bacterial agent.
Description
Technical field
The invention discloses a kind of fabric antimicrobial finishing agent, belong to textile auxiliary agent technical field.
Technical background
The antiseptic-germicide that textiles uses at present is generally divided into natural antibacterial agent, organic antibacterial agent and inorganic antiseptic three classes.
Inorganic antiseptic mainly refers to that metal or metal ion that silver, copper, zinc etc. itself are had to an antibacterial ability are carried on the preparation on inorganic matter carrier.And silver sterilizing ability than copper, the large manyfold of zinc, therefore commercial inorganic antiseptic is silver-series antibacterial agent mostly at present.But general carrying silver antimicrobials be present in uniformly dispersed problem in medium, permanent ageing problem, antibacterial components (silver ions) in carrier from transport property and slow-releasing problem.These problems are mainly to be caused by proper properties such as the absorption property of inorganic mineral carrier, specific surface area and the dispersivenesses in other material of main parts.Ionic antiseptic-germicide is mainly that the metal ion with anti-microbial effect is carried on certain carrier, and by slow release metal ions performance anti-microbial effect, but its shortcoming is also more obvious, as mildew-resistant, antifungic action a little less than, cost is higher, easy to change etc.
Summary of the invention
For overcoming above-mentioned silver antibacterial agent defect, the invention provides a kind of fabric antimicrobial finishing agent.
For achieving the above object, the present invention has adopted following technical scheme:
A kind of fabric antimicrobial finishing agent, it is characterized in that being made by Polymerizable Polyurethane performed polymer, vinylformic acid, initiator, silver ammino solution, reductive agent, water reaction, wherein 50～155 parts of Polymerizable Polyurethane performed polymers, 10～30 parts, vinylformic acid, 1～3 part of initiator, 15～40 parts of silver ammino solutions, 5～20 parts of reductive agents, 70～125 parts, water.
Described Polymerizable Polyurethane performed polymer structural formula is shown in formula 1
In formula 1, n=9～22.
Described reductive agent be aldehydes, containing in sugar and the fructose of aldehyde radical, the organic salt that has reductibility, hydrazine, naphthyl alcohol any one or multiple.
Described aldehydes is any one shown in formula 2
In formula 2, R is alkyl;
The sugar that contains aldehyde radical is any one in glucose, maltose, rhamnosyl, Fucose, pectinose, wood sugar, seminose, semi-lactosi and aldotriose; The organic salt that has reductibility is any one in tartrate, trisodium citrate, Sodium.alpha.-hydroxypropionate.
Described initiator is one or more in ammonium persulphate, Potassium Persulphate, Sodium Persulfate.
The preparation method of described a kind of fabric antimicrobial finishing agent, comprises the steps:
(1), Polymerizable Polyurethane performed polymer, suitable quantity of water are added in reactor, be heated to 60 ℃ and make it to dissolve completely;
(2), within the scope of 60～75 ℃, drip vinylformic acid and initiator solution in 1～2h, and in 80 ℃ of insulation reaction 2h, be cooled to 40～60 ℃;
(3), slowly add silver ammino solution, and stir, then add reductive agent again, utilize silver mirror reaction, under the bath temperature of 40～60 ℃, stirring reaction 1～2h, obtains fabric antimicrobial finishing agent;
The collocation method of described silver ammino solution is: take appropriate AgNO
3solution, in clean container, drips weak ammonia in AgNO
3in solution, the vibration while dripping, until the initial precipitation generating is just dissolved.
Antibacterial finishing agent preparation method's of the present invention first two steps are rapid, are Polymerizable Polyurethane performed polymer and acrylic acid emulsion polymerization.Polymerizable Polyurethane performed polymer shown in formula 1 contains two keys, can carry out Raolical polymerizable, and in addition, this monomer also has good surfactivity, plays the effect of stablizing macromole emulsion particle in polymerization process.
In letex polymerization, tensio-active agent plays very important effect.Although traditional small molecules tensio-active agent kind, number are the most a lot, because be physical adsorption mechanism, be subject to the easy desorb and coming off while impact of high shear force, centrifugal force, temperature, and remain in product easily to surface transport, affect product performance.With respect to small molecules tensio-active agent, polymeric surface active agent relative molecular mass be everlasting number in more than, transport property reduces greatly, and polymerisable emulsifier is bonding to emulsion particle in the time of letex polymerization, become a part for polymkeric substance, avoid from polymer particle desorb or move in latex film, both can overcome conventional surfactant residual caused detrimentally affect in polymkeric substance, can improve again the stability of latex, improve the performance such as water-fast, optical, electrical and hot of polymkeric substance.
Urethane, owing to having the performances such as good physical and mechanical properties, thermal adaptation ability and organic solvent-resistant, is widely used.Take Polymerizable Polyurethane performed polymer, vinylformic acid as main monomer, pass through copolymerization, make take urethane as main body, in molecular chain containing the macromolecule emulsion of appropriate carboxyl, by catalyst action, carboxyl is reacted with silver ammino solution again, obtain the antibacterial finishing agent of molecular chain surface silver ion, this finishing composition has overcome the drawback of the stripping of silver-colored load antiseptic-germicide, migration, in addition, the wear behavior that urethane is good, has strengthened the weather resistance of antiseptic-germicide.
Specific embodiments
Below by specific embodiment, the invention will be further described:
Embodiment 1:
A preparation method for fabric antimicrobial finishing agent, comprises the steps:
(1), 50 parts of Polymerizable Polyurethane performed polymers, water 55 are added in reactor, be heated to 60 ℃ and make it to dissolve completely, for subsequent use with 1 part of initiator Sodium Persulfate of 15 parts of water dissolution;
(2), within the scope of 60～75 ℃, drip 10 parts, vinylformic acid and initiator solution in 1～2h, and in 80 ℃ of insulation reaction 2h, be cooled to 40 ℃;
(3), slowly add 15 parts of silver ammino solutions, and stir, then add 5 parts, reductive agent formaldehyde again, utilize silver mirror reaction, under the bath temperature of 40 ℃, stirring reaction 1～2h, obtains fabric antimicrobial finishing agent;
Embodiment 2:
A preparation method for fabric antimicrobial finishing agent, comprises the steps:
(1), 75 parts of Polymerizable Polyurethane performed polymers, water 70 are added in reactor, be heated to 60 ℃ and make it to dissolve completely, for subsequent use with 1.5 parts of initiator ammonium persulfates of 15 parts of water dissolution;
(2), within the scope of 60～75 ℃, drip 15 parts, vinylformic acid and initiator solution in 1～2h, and in 80 ℃ of insulation reaction 2h, be cooled to 45 ℃;
(3), slowly add 20 parts of silver ammino solutions, and stir, then add 8 parts of reductive agent glucose again, utilize silver mirror reaction, under the bath temperature of 45 ℃, stirring reaction 1～2h, obtains fabric antimicrobial finishing agent;
Embodiment 3:
A preparation method for fabric antimicrobial finishing agent, comprises the steps:
(1), 100 parts of Polymerizable Polyurethane performed polymers, water 85 are added in reactor, be heated to 60 ℃ and make it to dissolve completely, for subsequent use by 2 parts of initiator potassium persulfate of 15 parts of water dissolution;
(2), within the scope of 60～75 ℃, drip 20 parts, vinylformic acid and initiator solution in 1～2h, and in 80 ℃ of insulation reaction 2h, be cooled to 50 ℃;
(3), slowly add 25 parts of silver ammino solutions, and stir, then add 12 parts of reductive agent trisodium citrates again, utilize silver mirror reaction, under the bath temperature of 50 ℃, stirring reaction 1～2h, obtains fabric antimicrobial finishing agent;
Embodiment 4:
A preparation method for fabric antimicrobial finishing agent, comprises the steps:
(1), 125 parts of Polymerizable Polyurethane performed polymers, water 100 are added in reactor, be heated to 60 ℃ and make it to dissolve completely, for subsequent use by 1.5 parts of initiator potassium persulfate of 15 parts of water dissolution, 1 part of initiator Sodium Persulfate;
(2), within the scope of 60～75 ℃, drip 25 parts, vinylformic acid and initiator solution in 1～2h, and in 80 ℃ of insulation reaction 2h, be cooled to 55 ℃;
(3), slowly add 35 parts of silver ammino solutions, and stir, then add 16 parts of hydrazine reducing agents again, utilize silver mirror reaction, under the bath temperature of 55 ℃, stirring reaction 1～2h, obtains fabric antimicrobial finishing agent;
Embodiment 5:
A preparation method for fabric antimicrobial finishing agent, comprises the steps:
(1), 155 parts of Polymerizable Polyurethane performed polymers, water 110 are added in reactor, be heated to 60 ℃ and make it to dissolve completely, for subsequent use with 3 parts of initiator ammonium persulfates of 15 parts of water dissolution;
(2), within the scope of 60～75 ℃, drip 30 parts, vinylformic acid and initiator solution in 1～2h, and in 80 ℃ of insulation reaction 2h, be cooled to 60 ℃;
(3), slowly add 40 parts of silver ammino solutions, and stir, then add 20 parts of reductive agent naphthyl alcohols again, utilize silver mirror reaction, under the bath temperature of 60 ℃, stirring reaction 1～2h, obtains fabric antimicrobial finishing agent;
Embodiment 6:
A preparation method for fabric antimicrobial finishing agent, comprises the steps:
(1), 135 parts of Polymerizable Polyurethane performed polymers, water 100 are added in reactor, be heated to 60 ℃ and make it to dissolve completely, for subsequent use by 1.3 parts of initiator potassium persulfate of 15 parts of water dissolution, 0.9 part of initiator ammonium persulfate;
(2), within the scope of 60～75 ℃, drip 22 parts, vinylformic acid and initiator solution in 1～2h, and in 80 ℃ of insulation reaction 2h, be cooled to 50 ℃;
(3), slowly add 35 parts of silver ammino solutions, and stir, then add 8 parts, reductive agent acetaldehyde, 10 parts of aldotrioses again, utilize silver mirror reaction, under the bath temperature of 50 ℃, stirring reaction 1～2h, obtains fabric antimicrobial finishing agent.
Claims (7)
1. a fabric antimicrobial finishing agent, it is characterized in that being made by Polymerizable Polyurethane performed polymer, vinylformic acid, initiator, silver ammino solution, reductive agent, water reaction, wherein 50～155 parts of Polymerizable Polyurethane performed polymers, 10～30 parts, vinylformic acid, 1～3 part of initiator, 15～40 parts of silver ammino solutions, 5～20 parts of reductive agents, 70～125 parts, water.
2. high-molecular fabric antibacterial finishing agent as claimed in claim 1, is characterized in that: described Polymerizable Polyurethane performed polymer structural formula is shown in formula 1
In formula 1, n=9～22.
3. high-molecular fabric antibacterial finishing agent as claimed in claim 1, is characterized in that: described reductive agent be aldehydes, containing in sugar and the fructose of aldehyde radical, the organic salt that has reductibility, hydrazine, naphthyl alcohol any one or multiple.
4. a kind of fabric antimicrobial finishing agent as claimed in claim 3, is characterized in that: described aldehydes is any one shown in formula 2
In formula 2, R is alkyl;
The sugar that contains aldehyde radical is any one in glucose, maltose, rhamnosyl, Fucose, pectinose, wood sugar, seminose, semi-lactosi and aldotriose; The organic salt that has reductibility is any one in tartrate, trisodium citrate, Sodium.alpha.-hydroxypropionate.
5. high-molecular fabric antibacterial finishing agent as claimed in claim 1, is characterized in that: described initiator is one or more in ammonium persulphate, Potassium Persulphate, Sodium Persulfate.
6. an a kind of preparation method of fabric antimicrobial finishing agent as claimed in claim 1, is characterized in that comprising the steps:
(1), Polymerizable Polyurethane performed polymer, suitable quantity of water are added in reactor, be heated to 60 ℃ and make it to dissolve completely;
(2), within the scope of 60～75 ℃, drip vinylformic acid and initiator solution in 1～2h, and in 80 ℃ of insulation reaction 2h, be cooled to 40～60 ℃;
(3), slowly add silver ammino solution, and stir, then add reductive agent again, utilize silver mirror reaction, under the bath temperature of 40～60 ℃, stirring reaction 1～2h, obtains fabric antimicrobial finishing agent.
7. the preparation method of a kind of fabric antimicrobial finishing agent as claimed in claim 5, is characterized in that: the collocation method of described silver ammino solution is: take appropriate AgNO
3solution, in clean container, drips weak ammonia in AgNO
3in solution, the vibration while dripping, until the initial precipitation generating is just dissolved.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310567946.1A CN103881035B (en) | 2013-11-08 | 2013-11-08 | Antibacterial finishing agent for fabric |
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|---|---|---|---|
| CN201310567946.1A CN103881035B (en) | 2013-11-08 | 2013-11-08 | Antibacterial finishing agent for fabric |
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| CN103881035A true CN103881035A (en) | 2014-06-25 |
| CN103881035B CN103881035B (en) | 2021-09-07 |
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Cited By (3)
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|---|---|---|---|---|
| CN104264485A (en) * | 2014-09-18 | 2015-01-07 | 张伟 | Preparation method of medical bandage coated with polyurethane resin prepolymer |
| CN113389053A (en) * | 2021-08-11 | 2021-09-14 | 武自萌 | Production method of anti-mildew fabric |
| CN114685714A (en) * | 2020-12-29 | 2022-07-01 | 上海朗亿功能材料有限公司 | Modified polymer, antibacterial composition, preparation method, fabric finishing and application |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104264485A (en) * | 2014-09-18 | 2015-01-07 | 张伟 | Preparation method of medical bandage coated with polyurethane resin prepolymer |
| CN114685714A (en) * | 2020-12-29 | 2022-07-01 | 上海朗亿功能材料有限公司 | Modified polymer, antibacterial composition, preparation method, fabric finishing and application |
| CN114685714B (en) * | 2020-12-29 | 2023-09-22 | 上海朗亿功能材料有限公司 | Modified polymer, antibacterial composition, preparation method, textile finishing and application |
| CN113389053A (en) * | 2021-08-11 | 2021-09-14 | 武自萌 | Production method of anti-mildew fabric |
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| CN103881035B (en) | 2021-09-07 |
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