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Adhesive bandage containing nano-silver particles and preparation method of adhesive bandage

A technology of nano-silver particles and band-aids, applied in the field of medicine, can solve the problems of low production efficiency, needle blockage, and inability to evenly distribute nano-silver ions.

Inactive Publication Date: 2018-12-28
MINJIANG UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in the actual preparation process, in the electrospinning silk solution containing nano-silver particles, the nano-silver ions will cluster. The ions cannot be evenly distributed on the fiber, so it is not suitable for industrial production

Method used

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  • Adhesive bandage containing nano-silver particles and preparation method of adhesive bandage
  • Adhesive bandage containing nano-silver particles and preparation method of adhesive bandage
  • Adhesive bandage containing nano-silver particles and preparation method of adhesive bandage

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0036] Embodiment 1 A kind of Band-aid containing nano-silver particles

[0037] 1. Preparation of disinfection layer

[0038] Preparation of electrospinning liquid: after dissolving polyvinyl butyral in ethanol, add silver nitrate, stir to dissolve, and prepare electrostatic spinning liquid; the concentration of silver nitrate is 0.5wt%, the concentration of PVB is 7.375wt%, magnetic stirring for 15-18h , so that it completely dissolves to a transparent state,

[0039] Electrospinning: electrospinning the electrospinning solution to obtain silver nitrate textile fibers; the ambient temperature of the electrospinning process is controlled at 22-28°C and the relative humidity is 40%-60%. The electrospinning process parameters are: collection distance (12±1) cm, voltage (22±2) kV, flow rate 1.5 mL / h, single needle, and spinning for 10 hours.

[0040] Decomposition of silver nitrate: The silver nitrate textile fiber is irradiated with ultraviolet light, and the silver nitrate i...

Embodiment 2

[0051] Embodiment 2 A kind of Band-aid containing nano-silver particles

[0052] 1. Preparation of disinfection layer

[0053] Preparation of electrospinning liquid: after dissolving polyvinyl butyral in ethanol, adding silver nitrate, stirring and dissolving, preparing electrospinning liquid; wherein the concentration of silver nitrate is 1wt%, the concentration of PVB is 7.375wt%, magnetically stirred for 15-18h, make it completely dissolved to become transparent,

[0054] Electrospinning: electrospinning the electrospinning solution to obtain silver nitrate textile fibers; the ambient temperature of the electrospinning process is controlled at 22-28°C and the relative humidity is 40%-60%. The electrospinning process parameters are: collection distance (12±1) cm, voltage (22±2) kV, flow rate 1.5 mL / h, single needle, and spinning for 10 hours.

[0055] Decomposition of silver nitrate: The silver nitrate textile fiber is irradiated with ultraviolet light, and the silver nitr...

Embodiment 3

[0062] Embodiment 3 A kind of Band-Aid Containing Nano Silver Particles

[0063] 1. Preparation of disinfection layer

[0064] Preparation of electrospinning liquid: after dissolving polyvinyl butyral in ethanol, adding silver nitrate, stirring and dissolving, preparing electrospinning liquid; wherein the concentration of silver nitrate is 2wt%, the concentration of PVB is 7.375wt%, magnetically stirred for 15-18h, make it completely dissolved to become transparent,

[0065] Electrospinning: electrospinning the electrospinning solution to obtain silver nitrate textile fibers; the ambient temperature of the electrospinning process is controlled at 22-28°C and the relative humidity is 40%-60%. The electrospinning process parameters are: collection distance (12±1) cm, voltage (22±2) kV, flow rate 1.5 mL / h, single needle, and spinning for 10 hours.

[0066] Decomposition of silver nitrate: The silver nitrate textile fiber is irradiated with ultraviolet light, and the silver nitr...

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Abstract

The invention provides an adhesive bandage containing nano-silver particles. The adhesive bandage comprises an adhesive tape layer, a disinfection layer and a hemostatic gauze layer from outside to inside in sequence, wherein the hemostatic gauze layer and the disinfection layer are arranged in the middle of the adhesive bandage, the area of the disinfection layer is larger than that of the hemostatic gauze layer, and the disinfection layer is electrostatic textile fabric containing the nano-silver particles. The adhesive bandage has the antibacterial function, and can prevent bacterial secondary infection caused by wounds and whitening and softening of skin around the wounds.

Description

technical field [0001] The invention relates to the field of medicine, in particular to a band-aid containing nano-silver particles and a preparation method thereof. Background technique [0002] Band-aid is the most commonly used surgical drug in people's life. Band-aid, also known as "hemostatic plaster", has the functions of hemostasis and skin protection. It consists of a long strip of adhesive plaster with a small piece of drug-soaked gauze attached in the middle. Band-aids are used for emergency treatment of small traumas, so as to temporarily stop bleeding and protect the wound surface. However, when ordinary band-aids are used, it is easy to cause the wound and the skin around the wound to turn white and soften, leading to secondary infection of bacteria, leading to wound deterioration. [0003] Nano-silver refers to metallic silver whose particle radius is made to the nanometer scale; the radius of nano-silver particles is generally around 25 nanometers. Nano-si...

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): A61L15/40A61L15/18A61L15/44A61L15/46
CPCA61L15/18A61L15/40A61L15/44A61L15/46A61L2300/104A61L2300/30A61L2300/404A61L2400/04
Inventor 严涛海时雅菁李永贵
Owner MINJIANG UNIV
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