Method for preparing underwear with antibacterial effect by utilizing electrostatic spinning method

An electrospinning method and underwear technology, applied in underwear, baby underwear, rayon manufacturing, etc., can solve the problems of not being able to discharge in time, poor ventilation effect, etc.

Inactive Publication Date: 2020-06-09
FOSHAN QINGZI PRECISION MEASUREMENT & CONTROL TECH
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, due to the strong hardness of the retainer itself, the underwear and the chest are tightly fitted after being worn on the body, so that the sweat and heat between the chest and the underwear accumulate on the skin surface and cannot be discharged in time. After the surface of the skin and the surface of the clothing, long-term humidity will breed a large number of bacteria on the underwear fabric, resulting in a large number of odors

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0065] Step 1) Dissolve chitosan in a mixed solvent of 0.1 mol / L sodium acetate and 0.2 mol / L acetic acid (molar ratio of chitosan: acetate is 3:1), stir until completely dissolved, add 2 times of acetate The molar amount of laurylaldehyde was stirred for 1h, and the pH of the system was adjusted to 4-5 by adding 0.1 mol / L NaOH solution, and the NaBH 4 (NaBH 4 : The molar ratio of laurylaldehyde is 3:1) Slowly add dropwise to the above solution within 1h, until the pH of the reaction system rises to 5-6, react for 1h, adjust the pH of the system to 9-10 with NaOH solution, until precipitation Afterwards, filter, wash the precipitate with water to neutrality, and then extract it with ethanol in a Soxhlet extractor for more than 12 hours to remove the remaining lauric aldehyde and inorganic salts, dry and pulverize to obtain hydrophobically modified chitosan, the average particle size less than 2 microns;

[0066] The chitosan aqueous solution of hydrophobic modification is di...

Embodiment 2

[0074] Step 1) Dissolve chitosan in a mixed solvent of 0.1 mol / L sodium acetate and 0.2 mol / L acetic acid (molar ratio of chitosan: acetate is 3:1), stir until completely dissolved, add 2 times of acetate The molar amount of laurylaldehyde was stirred for 4h, and the system was adjusted to pH 4-5 by adding 0.1 mol / L NaOH solution, and the NaBH 4 (NaBH 4 : The molar ratio of laurylaldehyde is 3:1) Slowly add dropwise to the above solution within 1h, until the pH of the reaction system rises to 5-6, react for 1h, adjust the pH of the system to 9-10 with NaOH solution, until precipitation Afterwards, filter, wash the precipitate with water to neutrality, and then extract it with ethanol in a Soxhlet extractor for more than 12 hours to remove the remaining lauric aldehyde and inorganic salts, dry and pulverize to obtain hydrophobically modified chitosan, the average particle size less than 2 microns;

[0075] The hydrophobically modified chitosan was dissolved in 1% v / v aqueous ...

Embodiment 3

[0083] Step 1) Dissolve chitosan in a mixed solvent of 0.1 mol / L sodium acetate and 0.2 mol / L acetic acid (molar ratio of chitosan: acetate is 3:1), stir until completely dissolved, add 2 times of acetate The molar amount of laurylaldehyde was stirred for 3h, and the pH of the system was adjusted to 4-5 by adding 0.1 mol / L NaOH solution, and the NaBH 4 (NaBH 4 : The molar ratio of laurylaldehyde is 3:1) Slowly add dropwise to the above solution within 1h, until the pH of the reaction system rises to 5-6, react for 1h, adjust the pH of the system to 9-10 with NaOH solution, until precipitation Afterwards, filter, wash the precipitate with water to neutrality, and then extract it with ethanol in a Soxhlet extractor for more than 12 hours to remove the remaining lauric aldehyde and inorganic salts, dry and pulverize to obtain hydrophobically modified chitosan, the average particle size less than 2 microns;

[0084] The chitosan aqueous solution of hydrophobic modification is di...

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Abstract

The invention provides a method for preparing underwear with an antibacterial effect by utilizing an electrostatic spinning method. The method comprises the following steps: preparing hydrophobicallymodified chitosan by adopting chitosan; dissolving a natural antibacterial agent into the chitosan solution, and crosslinking glutaraldehyde to obtain a hydrophobically modified chitosan coated natural antibacterial agent; adding carboxymethyl chitosan and hydrazine hydrate into silver nitrate, and obtaining a nano-silver antibacterial solution; dispersing the hydrophobic modified chitosan coatednatural antibacterial agent and the nano-silver antibacterial solution into a high-molecular polymer solution, and defoaming to obtain a nano-antibacterial spinning solution; adding the nano-antibacterial spinning solution into electrostatic spinning, and electrospinning a composite nano-antibacterial fiber layer on the surface of the base cloth layer; obtaining the underwear fabric with the antibacterial effect through a hot pressing process; and preparing the underwear with the antibacterial effect. The silver and a natural antibacterial agent are processed into nanofibers and rapidly embedded into the fabric, multiple antibacterial materials are compounded into the nano antibacterial fibers at a time, and the nano antibacterial fibers have high porosity and high specific surface area and bring air and moisture permeability and antibacterial effects.

Description

technical field [0001] The invention relates to the technical field of clothing processing, in particular to the field of polymer materials, and relates to a method for preparing underwear with antibacterial effect by using an electrospinning method. Background technique [0002] Underwear is close to the skin, known as women's "second skin". Most of the underwear fabrics on the market are basically natural fabrics and synthetic fabrics. However, due to the limitation of natural fiber itself, synthetic fiber fabrics are mostly used in underwear now, but its water absorption is poor and air permeability is weak. If it is worn for a long time, it is easy to produce bacteria and even cause allergies. [0003] Patent CN 108716115.A discloses an antibacterial fiber, its preparation method and its application. It mainly makes the antibacterial fiber by coating the blend solution with silver-loaded antibacterial agent on the fibrils and then drying it, but this method is difficult...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B32B37/06B32B37/10B32B5/02B32B27/02B32B27/30B32B27/18B32B27/12B32B33/00B32B23/02B32B23/14B32B23/10B32B3/24D01F1/10D04H13/00D04H1/728A41B17/00
CPCB32B37/06B32B37/10B32B5/022B32B5/08B32B5/26B32B33/00B32B3/266D01F1/103D04H13/00D04H1/728A41B17/00B32B2262/0238B32B2262/0223B32B2262/14B32B2262/0246B32B2262/04B32B2250/20B32B2307/7145B32B2307/724B32B2437/00A41B2400/34A41B2400/20
Inventor 曾俊张荣光朱自明韦春华张青刘卓珊
Owner FOSHAN QINGZI PRECISION MEASUREMENT & CONTROL TECH
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