Medical anti-microbial silver-plated dressing and preparation method thereof

A medical and coating technology, applied in applications, clothing, underwear, etc., can solve the problems of large amount of silver-plated fibers, complicated processing technology, and difficult processing, so as to reduce the amount of silver used, reduce costs, and improve antibacterial efficiency and utilization rate Effect

Inactive Publication Date: 2012-06-13
THE QUARTERMASTER EQUIPMENT RESEARCH INSTITUTE OF THE GENERAL LOGISITIC DEPARTME
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] Most of the organic antibacterial agents have targeted problems. For a variety of bacterial populations, many antibacterial agent varieties are used, and their combination with medical dressings has complicated processing technology and low utilization rate; although nano-silver ions have broad-spectrum antibacterial properties, But its processing is difficult and the cost is high
Silver-plated antibacterial fibers have good antibacterial effects, and can be processed together with medical dressings after blending. The production process is simple, but because only the blending process can be used, to achieve antibacterial effects, the amount of silver-plated fibers is often large

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0023] Embodiment 1, preparation antibacterial silver-plated medical dressing

[0024] (1) Mix calcium alginate loose fibers and cotton fiber loose fibers at a mass ratio of 20:80, carding and acupuncture to prepare a dressing base material.

[0025] (2) immerse the formed dressing base material in mass concentration in 5% sodium hydroxide solution (the solid-liquid ratio of dressing base material and sodium hydroxide solution is 1kg: 1L), remove fiber surface oil agent; Then water ( The ratio of solid to liquid is 1kg: 3L), absolute ethanol (ratio of solid to liquid is 1kg: 1L) for rinsing, to wash off the sodium hydroxide and oil agent remaining in the dressing base material and dehydrate, after drying, put it in a vacuum in a magnetron sputtering device.

[0026] (3) The sputtering chamber in the magnetron sputtering device is evacuated to make the vacuum degree less than 2×10 -4 Pa, and filled with pure argon as the sputtering gas; pure silver is used as the magnetron sp...

Embodiment 2

[0030] Embodiment 2, prepare antibacterial silver-plated medical dressing

[0031] (1) Using carding equipment, the calcium alginate loose fibers are carded into a web, spread flat on the surface of the viscose fiber spunlace non-woven fabric, and are prepared into a dressing base material by acupuncture compounding using an acupuncture equipment; wherein, alginate The mass ratio of the calcium powder fiber to the viscose fiber spunlace nonwoven fabric is 10:90.

[0032] Steps (2), (3), and (4) are the same as in Example 1; there are the following changes in its process parameters: vacuuming ensures that the vacuum degree in the sputtering chamber is 6.0 × 10 -4 Pa; the substrate temperature is room temperature; the working gas argon is introduced to ensure that the pressure during sputtering is 5Pa; the target material is silver-copper alloy, and the silver content is 50%, and the distance between the substrate and the target is adjusted to 170mm , the sputtering power is 50...

Embodiment 3

[0035] Embodiment 3, prepare antibacterial silver-plated medical dressing

[0036] (1) Using carding equipment, the calcium alginate loose fiber is carded into a web, and spread on the surface of the cotton fiber fabric with the specification parameters: 13tex×13tex×185 (root / 10cm)×210 (root / 10cm). Pricking equipment is used for needle punching and compounding to prepare dressing base materials; wherein, the mass ratio of calcium alginate loose fibers to cotton fiber fabrics is 90:10.

[0037] Steps (2), (3), and (4) are the same as in Example 1; there are the following changes in its process parameters: vacuuming ensures that the vacuum degree in the sputtering chamber is 3.0 × 10 -4 Pa; the temperature of the substrate is room temperature; the working gas argon is introduced to ensure that the pressure during sputtering is 2Pa; the target material is pure silver, the distance between the substrate and the target is adjusted to 100mm, and the sputtering power is 40W. Time 1....

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Abstract

The invention discloses a medical anti-microbial silver-plated dressing and a preparation method thereof. The preparation method of the medical anti-microbial silver-plated dressing includes steps of mixing calcium alginate fibers and cellulose fibers to prepare a dressing substrate and preparing a silver-particle plated layer on the surface of the dressing substrate by means of vacuum sputtering. The medical anti-microbial silver-plated dressing has broad-spectrum anti-microbial performance, is simple and easy in preparation method and low in cost.

Description

technical field [0001] The invention relates to an antibacterial silver-plated medical dressing and a preparation method thereof. Background technique [0002] Medical dressings are used to assist in the treatment of skin injuries and ulcers caused by trauma or disease, especially in the care of patients who have been bedridden for a long time. As the population of various countries in the world appears to be aging , coupled with the corresponding diseases brought about by people's overnutrition, the demand for medical dressings is increasing day by day. The role of medical dressings is mainly to isolate the damaged skin of the human body from the surrounding environment, so as to prevent the damaged skin from being infected by bacteria in the environment. At the same time, the medical dressing should also have the ability to absorb body fluids exuded due to skin trauma, so as to ensure the dryness of the wound. At present, medical dressings include ordinary medical dressi...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): C23C14/34C23C14/14A61F13/15
Inventor 来侃张华张建春陈美玉
Owner THE QUARTERMASTER EQUIPMENT RESEARCH INSTITUTE OF THE GENERAL LOGISITIC DEPARTME
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