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Sandwich microcapsule composite antibacterial nonwoven fabric and preparation method and application thereof

A compound antibacterial and microcapsule technology, which is applied in the field of non-woven fabrics, can solve the problem of microcapsules losing their drug-loading ability, achieve excellent antibacterial performance, increase comfort, and increase surface area.

Active Publication Date: 2017-05-03
SOUTH CHINA INST OF COLLABORATIVE INNOVATION
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since the size of ordinary antibacterial microcapsules is at the micron level, directly blending through the electrospinning solution will change the shape of the microcapsules, thereby causing the microcapsules to lose their original drug-loading capacity.

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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Examples

Experimental program
Comparison scheme
Effect test

preparation example Construction

[0067] The preparation of each extract in embodiment 1~4:

[0068] The preparation method of the juniper extract is as follows: the juniper fruit is decocted and extracted three times, each time for 2 hours, filtered, the water is recovered under reduced pressure, concentrated, and freeze-dried to obtain the juniper extract; the fruit and water The mass ratio is 1:10, the decoction temperature is 100°C, the freeze-drying condition is -20°C for 2 hours, and the concentration temperature is 40°C;

[0069] The preparation method of the Rosa roxburghii extract is as follows: extract the Rosa roxburghii fruit by reflux twice with a mass fraction of 85% ethanol solution, each time for 2 hours, filter, recover water under reduced pressure, concentrate, and freeze-dry to obtain Rosa roxburghii Extract; the mass ratio of fruit to water is 1:15, the freeze-drying condition is -15°C for 2 hours, and the decompression condition: -2×10 5 KPa, the concentration temperature is 40°C;

[007...

Embodiment 1

[0073] An interlayer microcapsule composite antibacterial non-woven fabric, comprising a middle layer and a first surface layer and a second surface layer respectively located on both sides of the middle layer, the middle layer is composed of antibacterial microcapsules, the first surface layer and the second surface layer The two surface layers are nanofiber membranes prepared by electrospinning, the thickness of the first surface layer is 2 mm, the thickness of the middle layer is 1 mm, and the thickness of the second surface layer is 2 mm. The nanofiber membranes of the first surface layer and the second surface layer are starch acetate nanofiber membranes.

[0074] Preparation of starch acetate: Starch (high-chain corn starch) is used as solute, ionic liquid 1-butyl-3-methylimidazole chloride is used as solvent, and a starch solution with a mass fraction of 20% is prepared, heated to 135° C., and uniformly Stir for 2 hours until the starch is completely dissolved to obtain...

Embodiment 2

[0085] An interlayer microcapsule composite antibacterial non-woven fabric, comprising a middle layer and a first surface layer and a second surface layer respectively located on both sides of the middle layer, the middle layer is composed of antibacterial microcapsules, the first surface layer and the second surface layer The two surface layers are nanofiber membranes prepared by electrospinning, the thickness of the first surface layer is 1 mm, the thickness of the middle layer is 1 mm, and the thickness of the second surface layer is 1 mm. The nanofiber membranes of the first surface layer and the second surface layer are starch acetate nanofiber membranes.

[0086] Preparation of starch acetate: Starch (high-chain corn starch) is used as solute, and ionic liquid 1-butyl-3-methylimidazole chloride is used as solvent to form a starch solution with a mass fraction of 40%, heated to 135°C, and uniformly Stir for 2 hours until the starch is completely dissolved to obtain a unif...

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Abstract

The invention belongs to the technical field of nonwoven fabrics, and discloses sandwich microcapsule composite antibacterial nonwoven fabric and a preparation method and application thereof. The sandwich microcapsule composite antibacterial nonwoven fabric comprises an intermediate layer and a first surface layer and a second surface layer which are arranged at the two sides of the intermediate layer. The composition of the intermediate layer is antibacterial microcapsules. The first surface layer and the second surface layer are nanofiber membranes prepared by electrostatic spinning. The microcapsules are prepared by using natural herbal antibacterial components, and the electrostatic spinning technology is adopted so that the disadvantages that the microcapsules are poor in stability, liable to lose and low in acting efficiency can be overcome. The prepared sandwich microcapsule composite antibacterial nonwoven fabric is green, environment-friendly and stable and has great antibacterial effect.

Description

technical field [0001] The invention belongs to the technical field of nonwoven fabrics, and relates to an interlayer microcapsule composite antibacterial nonwoven fabric, in particular to a nanoscale antibacterial nonwoven fabric combined with electrospinning and microcapsule technology, and a preparation method and application thereof. Background technique [0002] The antibacterial and antiviral properties of fabrics are not only needed in health and medical places. After SARS in 2003, various bird flus and bacterial viruses in the later period caused human beings to face unprecedented disasters. Therefore, people began to have extremely high requirements for antibacterial in terms of food, drink, housing, transportation, antibacterial textiles, etc. [0003] Due to the characteristics of small fiber diameter, small pore size, high porosity and large specific surface area, traditional nanofibrous membranes are widely used in air filtration, water treatment, catalysis, med...

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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Patent Type & Authority Applications(China)
IPC IPC(8): D04H13/00D01D5/00D04H1/728D06M23/12B01J13/02
CPCB01J13/02D01D5/003D01D5/0084D04H1/728D04H13/00D06M16/00D06M23/12
Inventor 程建华齐亮陈柔羲郑华生张鹏谢培镇
Owner SOUTH CHINA INST OF COLLABORATIVE INNOVATION
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