Antibacterial gauze or bandage and preparation method thereof

A bandage and gauze technology, applied in bandages, textiles, medical science, etc., can solve the problems of ecological environment impact, difficult metabolism of human body, short shelf life, etc., and achieve good biological safety, good compliance, and environmental friendliness

Inactive Publication Date: 2015-11-04
厦门百美特生物材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

The antibacterial active ingredient silver in the aforementioned nano-silver or silver ion compound is a strong antibacterial agent, which is easily oxidized in the air and loses antibacterial properties. The shelf life is short, the price is expensive, and it is difficult for the human body to metabolize it. Serious impact; the antibacterial function of zinc oxide is highly dependent on concentration; while chitosan does not have broad-spectrum antibacterial function, and can only exert antibacterial effect in acidic environment

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0022] Embodiment 1: the preparation of medical antibacterial gauze

[0023] Copper alginate fiber preparation: Sodium alginate was used as raw material, and 4 mass fraction % copper chloride aqueous solution was used as coagulation liquid, and copper alginate fiber was prepared by wet spinning process.

[0024] The antibacterial gauze is prepared by blending 99% by weight of the absorbent cotton fiber and 1% by weight of the copper alginate fiber, spinning, weaving, cutting, folding and the like.

[0025] The antibacterial rate of this embodiment is 96%, which has a good antibacterial effect.

Embodiment 2

[0026] Embodiment 2: the preparation of antibacterial gauze

[0027] Using sodium alginate as raw material and 4 mass fraction % copper sulfate aqueous solution as coagulation liquid, copper alginate fiber was prepared by wet spinning process.

[0028] The antibacterial gauze is prepared by blending 80% by weight of absorbent cotton fibers and 20% by weight of copper alginate fibers, and through a series of processes such as spinning, weaving, slitting, and folding.

[0029] The antibacterial rate of the present embodiment is greater than 99.9995%. Has good antibacterial effect.

Embodiment 3

[0030] Embodiment 3: the preparation of antibacterial bandage

[0031] Stock solution preparation: 2.8% by mass of sodium alginate with an intrinsic viscosity of 200mPa.s dissolved in 40 0 C water, stirring and dissolving, filtering, defoaming, and standing to obtain spinning stock solution; spinning stock solution temperature 40 0 C, viscosity 8000mPa.s;

[0032] Spinning: The spinning stock solution is extruded by compressed air at a pressure of 0.4 MPa, metered by a metering pump, and then passed through a candle filter, gooseneck, and sprays a thin stream from the spinneret immersed in the coagulation liquid of the first coagulation tank. Coagulation traction, and then sequentially through the second coagulation tank coagulation liquid, 60 ~ 70 0 C Hot water drawing, 40~60 0 C washing with water and drying to obtain copper alginate fiber. The aperture of the large spinneret in the spinneret is 0.05-0.12mm, and the aperture size is selected according to the required s...

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Abstract

The invention discloses antibacterial gauze or bandage and its preparation method. The antibacterial gauze or bandage is prepared by blending of 80-99 wt% of medical absorbent cotton and 1-20 wt% of copper alginate fiber. The prepared gauze or bandage has good biosecurity and high antibacterial rate, is broad-spectrum antibacterial and environmentally friendly, has good compliance and is low-cost. In addition, antibacterial rate of the gauze or bandage is greater than 99%.

Description

technical field [0001] The invention relates to the field of medical dressings, in particular to an antibacterial gauze or bandage and a preparation method thereof. Background technique [0002] Medical absorbent cotton gauze and bandages are commonly used hygienic materials in the medical industry for dressing open wounds, protecting, cleaning, and compressing hemostasis for small bleeding wounds. Open wounds are prone to deterioration caused by bacterial infection and affect wound healing. It is necessary to increase the antibacterial properties of gauze and bandages. [0003] Existing gauze and bandages with antibacterial function are mainly prepared by adding chemical fiber or chitosan fiber blended with composite nano-silver / silver ion compound / nanometer zinc oxide with good antibacterial function, or using nano-silver / silver ion compound / zinc oxide / Chitosan material was prepared by post-finishing. The antibacterial active ingredient silver in the aforementioned nan...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): A61L15/44A61L15/28A61F13/02D03D15/00D01F9/04
Inventor 刘松林邱东刘澄胜林丽雯黄福龙
Owner 厦门百美特生物材料科技有限公司
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