Fibroin nano-silver antibacterial developing finishing agent as well as preparation method and application thereof

A nano-silver antibacterial and finishing agent technology, applied in the directions of dyeing, fiber treatment, physical treatment, etc., can solve the problems of poor antibacterial persistence, stability and safety, unreachable antibacterial fabrics, and damage to the fabric feel, etc. Antibacterial and washing resistance, super bactericidal properties, and good physical and chemical stability

Active Publication Date: 2021-10-08
NANTONG TEXTILE & SILK IND TECH RES INST +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Most of the antibacterial fabrics directly woven with antibacterial fibers will destroy their natural antibacterial properties during textile processing, especially some high-temperature treatments, such as dyeing and scouring processes. After the textile is processed into a fabric, its antibacterial performance will be greatly reduced, and finally it is far from meeting the requirements of antibacterial fabrics; and the method of functional finishing, although it is easy to operate, can also achieve the purpose of antibacterial, but in the process of functional finishing The chemical reagents added will damage the hand feel of the fabric, and its antibacterial persistence, stability and safety are poor

Method used

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  • Fibroin nano-silver antibacterial developing finishing agent as well as preparation method and application thereof
  • Fibroin nano-silver antibacterial developing finishing agent as well as preparation method and application thereof
  • Fibroin nano-silver antibacterial developing finishing agent as well as preparation method and application thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0055] A preparation method of silk fibroin nano-silver antibacterial color-developing finishing agent, the specific steps are as follows:

[0056] (1) The preparation process of the silk fibroin solution is as follows: soak degummed silk in a lithium bromide solution with a concentration of 9.7mol / L, place it in an oven at 60°C for 4 hours, and shake it every 1 hour to obtain a silk solution with a concentration of 1 wt%. ;

[0057] (2) After adding citric acid and ascorbic acid to the silk fibroin solution prepared in step (1), adjust its pH value to 3.6, and then add AgNO 3 Crystal, obtain silk fibroin silver nitrate solution; In silk fibroin silver nitrate solution, the concentration of citric acid is 15g / L, and the concentration of ascorbic acid is 1wt%, and AgNO 3 The concentration is 4mg / mL;

[0058] (3) Add chitosan (molecular weight is 150000), polyethylene glycol (molecular weight is 400) and manganese dioxide blend to obtain silk fibroin silver nitrate mixed solutio...

Embodiment 2

[0062] A preparation method of silk fibroin nano-silver antibacterial color-developing finishing agent, the specific steps are as follows:

[0063] (1) The preparation process of silk fibroin solution is as follows: soak degummed silk in a lithium bromide solution with a concentration of 8.4mol / L, place it in an oven at 60°C for 6 hours, and shake it every 1 hour to obtain a silk solution with a concentration of 3wt%. ;

[0064] (2) After adding citric acid and ascorbic acid to the silk fibroin solution prepared in step (1), adjust its pH value to 4.4, and then add AgNO 3 Crystal, obtain silk fibroin silver nitrate solution; In silk fibroin silver nitrate solution, the concentration of citric acid is 5g / L, and the concentration of ascorbic acid is 6wt%, and AgNO 3 The concentration is 6mg / mL;

[0065] (3) Add chitosan (molecular weight is 300,000), polyethylene glycol (molecular weight is 6000) and manganese dioxide to the silk fibroin silver nitrate solution that step (2) m...

Embodiment 3

[0069] A preparation method of silk fibroin nano-silver antibacterial color-developing finishing agent, the specific steps are as follows:

[0070] (1) The preparation process of silk fibroin solution is as follows: soak degummed silk in a lithium bromide solution with a concentration of 12mol / L, place it in an oven at 60° C. for 3 hours, and shake it every 1 hour to obtain a silk solution with a concentration of 6 wt%.

[0071] (2) After adding citric acid and ascorbic acid to the silk fibroin solution prepared in step (1), adjust its pH value to 4, then add AgNO 3 Crystal, obtain silk fibroin silver nitrate solution; In silk fibroin silver nitrate solution, the concentration of citric acid is 10g / L, and the concentration of ascorbic acid is 4wt%, and AgNO 3 The concentration is 2mg / mL;

[0072] (3) Add chitosan (molecular weight is 230000), polyethylene glycol (molecular weight is 3000) and manganese dioxide to the silk fibroin silver nitrate solution that step (2) makes to...

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Abstract

The invention relates to a fibroin nano-silver antibacterial developing finishing agent as well as a preparation method and application thereof. The preparation method comprises the steps that citric acid and ascorbic acid are added into a fibroin solution, then the pH value of the fibroin solution is adjusted, AgNO3 crystals are added, and a fibroin silver nitrate solution is obtained; and chitosan, polyethylene glycol and manganese dioxide are added into the fibroin silver nitrate solution to be blended to obtain a fibroin silver nitrate mixed solution, and the fibroin silver nitrate mixed solution is irradiated under an LED lamp to obtain the antibacterial developing finishing agent. The prepared finishing agent is a dispersion liquid containing nano-silver particles, silk fibroin, chitosan, polyethylene glycol and citric acid; the the application comprises the following steps of padding a plasma modified calotropis gigantea fiber blended fabric in the antibacterial developing finishing agent, drying, and carrying out steam treatment to obtain the fibroin nano-silver developing antibacterial functional calotropis gigantea fiber blended fabric. The finishing agent disclosed by the invention not only can resist bacteria, but also can develop color, and can be used for preparing the calotropis gigantea fabric with lasting and stable antibacterial property, excellent wrinkle resistance and good hand feeling.

Description

technical field [0001] The invention belongs to the technical field of color-developing finishing agents, and relates to a silk fibroin nano-silver antibacterial color-developing finishing agent and a preparation method and application thereof. Background technique [0002] Calotropis gigantea fiber is an extremely light natural plant fiber grown from the seed pappus of Calotropis fruit. The fiber not only has an extremely smooth surface, crystal-like luster, and soft feel, Moreover, its super-large hollow cavity structure with a cross-section as high as 80-90% makes it have the same characteristics as kapok fiber, such as strong pressure resistance, strong heat retention, good sound insulation and high hygroscopicity. The woven fabric has the smoothness of silk. Texture, and better air permeability, moisture absorption and warmth than cotton fabric. In addition, the fiber also has excellent properties such as antibacterial, anti-moth and anti-mildew, and can be used as a p...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M15/15D06M11/83D06M15/03D06M13/17D06M13/207D06M11/48D06M10/02D06P1/673D06P1/653D06P1/651D06P1/46D06P3/82D06M101/06
CPCD06M15/15D06M11/83D06M15/03D06M13/00D06M13/207D06M11/485D06M16/00D06M10/025D06P1/673D06P1/6533D06P1/65131D06P1/46D06P3/828D06M2101/06D06M2200/50D06M2200/20
Inventor 李刚刘静赵泽宇
Owner NANTONG TEXTILE & SILK IND TECH RES INST
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