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Microcapsule nano silver antibacterial fabric and preparation method thereof

A nano-silver antibacterial and microcapsule technology, applied in the field of antibacterial fabrics, can solve the problems of poor washing resistance, low temperature resistance, and easy discoloration of antibacterial fabrics, achieve excellent antibacterial performance and high temperature resistance, and enhance washing resistance and durability The effect of enhancing biocompatibility

Inactive Publication Date: 2011-11-23
泉州红瑞兴纺织有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, the current preparation of nano-silver antibacterial fabrics has great defects: ①The methods for preparing nano-silver such as sol-gel method and precipitation method are insufficient, and the obtained nano-silver particles have large particle size, wide particle size distribution and easy agglomeration
②The washing resistance of the fabric is poor, the antibacterial effect cannot last long, and the antibacterial effect is low; ③It is not resistant to high temperature, and the antibacterial effect is difficult to last; ④The antibacterial fabric is easy to change color; ⑤Poor compatibility with natural and synthetic polymer compounds
So far, there is no nano-silver antibacterial fabric with excellent antibacterial properties prepared by adding nano-silver to the fabric using microcapsule technology.

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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  • Microcapsule nano silver antibacterial fabric and preparation method thereof
  • Microcapsule nano silver antibacterial fabric and preparation method thereof
  • Microcapsule nano silver antibacterial fabric and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Step 1, 1g sodium alginate (weight average molecular weight M W =2*10 5 gmol -1 ) was dissolved in 20g of distilled water to prepare a 0.5% by mass sodium alginate aqueous solution, and then add 1g of Na 2 CO 3 , adjust the pH to 7;

[0027] Step 2, mixing 0.2g of 5% by mass sodium hypophosphite aqueous solution, 2.5g of sodium polyacrylate and 5g of 0.5% by mass sodium alginate aqueous solution to obtain a mixed solution A;

[0028] Step 3, 13.7g of 2% CaCl 2 The aqueous solution and 3.39g of 0.05% silver nitrate solution were mixed uniformly to obtain solution B;

[0029] Step 4, take by weighing 7.7g of solution A, join in electrostatic bead generator (see figure 1 , voltage 7KV, flow rate 8ml / h), after stirring evenly at a speed of 200rpm, the mixed solution was added dropwise to 17.09g solution B, and after standing for 1h, the obtained microspheres were rinsed 3 times with distilled water, separated by filtration , and finally absorb the surface moisture wi...

Embodiment 2

[0032] Step 1, 1.5g sodium alginate (weight average molecular weight M W =3*10 5 gmol -1 ) is dissolved in 75g NaCl solution, is prepared into the NaCl solution of the sodium alginate of 2% mass percent, then adds 1.8g NaHPO 4 , adjust the pH to 7.2;

[0033] Step 2, mixing 1.67g of 0.68% by mass hydrogen peroxide solution, 5g of sodium dodecylsulfonate and 24g of 2% by mass aqueous solution of sodium alginate to obtain mixed solution A;

[0034] Step 3, 20.18g of 3% CaCl 2 solution and 6.45g of 0.85% Ag(NH 3 ) 2 + The solution is mixed evenly to obtain solution B;

[0035] Step 4, take by weighing 30.67g of solution A, join in electrostatic bead generator (see figure 1 , voltage 7KV, flow rate 8ml / h), after stirring evenly at a speed of 250rpm, the mixed solution was added dropwise to 26.63g solution B, and after standing for 3h, the obtained microspheres were rinsed 3 times with distilled water, separated by filtration , and finally absorb the surface moisture with ...

Embodiment 3

[0038] Step 1, 3g sodium alginate (weight average molecular weight M W =3*10 5 gmol -1 ) was dissolved in 85.7g NaCl solution, prepared into 3.5% by mass percent sodium alginate aqueous solution, then added 3.8g NaCl 2 CO 3 , adjust the pH to 7.2;

[0039] Step 2, mixing 2.53g of 20% by mass hydrazine hydrate solution, 6.34g of fatty acid polyoxyethylene ether and 38g of 3.5% by mass of sodium alginate aqueous solution to obtain mixed solution A;

[0040] Step 3, the 3.5% chitosan acetic acid solution of 42.0g and the 0.92% Ag(NH 3 ) 2 + The solution is mixed evenly to obtain solution B;

[0041] Step 4, take by weighing 46.87g of solution A, join in electrostatic bead generator (see figure 1 , voltage 7KV, flow rate 8ml / h), after stirring evenly at a speed of 300rpm, the mixed solution was added dropwise to 50.64g solution B, and after standing for 4h, the obtained microspheres were rinsed 3 times with distilled water, separated by filtration , and finally absorb the...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Abstract

The invention discloses a microcapsule-fabric-finishing-technology-based nano silver antibacterial fabric and a preparation method thereof. Nano silver particle microcapsules using alginate as capsule walls are prepared by using an alginate microcapsule technology and added into a fabric to form the nano silver antibacterial fabric by after treatment. The antibacterial fabric realizes high dispersion uniformity of the nano silver particles, and well solves the agglomeration problem of nano particles; good impregnation of the degradable natural macromolecular microcapsules in the fabric is realized, and the biocompatibility of the antibacterial fabric is improved; the antibacterial fabric has sustained-release effect, long-acting performance, washing fastness and durability; the color change problem of the antibacterial fabric is solved; and the antibacterial fabric has excellent antibacterial performance and high-temperature resistance. Moreover, the preparation method of the antibacterial fabric is simple, nontoxic and easy for industrialization.

Description

technical field [0001] The invention relates to an antibacterial fabric, in particular to a nano-silver antibacterial fabric based on microcapsule fabric finishing technology and a preparation method thereof. Background technique [0002] With the development of human science and technology and the improvement of living standards, people pay more attention to health and environmental protection, and have new requirements for fabrics, that is, while paying attention to the beauty and comfort of fabrics, the environmental protection and hygiene of fabrics The function puts forward higher requirements, so the new multifunctional fabric will become an important emerging industry field, and the antibacterial function with the functions of eliminating peculiar smell, preventing bacterial growth and reducing skin infectious diseases is one of the development trends of fabrics. [0003] Antibacterial materials are generally divided into three categories: organic, inorganic metal ion...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
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Application Information

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IPC IPC(8): D06M23/12D06M15/13D06M11/83B01J13/02
Inventor 庄碧双
Owner 泉州红瑞兴纺织有限公司
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