Method for producing antimicrobial calcium alginate fiber

A technology of calcium alginate fiber and manufacturing method, which is applied in the direction of alginate artificial filament, fiber chemical characteristics, wet spinning method, etc., which can solve the problems of unable to keep the wound moist, damage tissue, limit the promotion and use of calcium alginate fiber, etc. question

Active Publication Date: 2009-03-11
山东康康新材料科技有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0002] With the development of science and technology and the improvement of people's quality of life, more and more attention has been paid to medical and health care, and traditional medical dressings have been difficult to meet people's needs
Traditional medical dressings are mostly gauze made of cellulose fibers such as cotton and viscose. The disadvantages are: ① cannot keep the wound moist, and the wound healing is delayed; ② dressing fibers are easy to fall off, causing foreign body reactions; ③ wound granulation tissue is easy to grow When the dressing is inserted into the mesh of the dressing, the new tissue will be damaged when the dressing is changed, causing secondary injury to the wound; ④When the dressing is soaked, pathogens can easily pass through; ⑤The water absorption is limited, and the wound exudate is mainly absorbed between the fibers In capillary pores, increased frequency of gauze changes during chronic wound recovery
Calcium alginate fiber hydrogel can adsorb bacteria to the surface of the gel to prevent wound infection. However, if the gel is not removed in time, the bacteria will easily fall off after the surface of the gel reaches saturation, leading to wound infection.
Therefore, it needs to be replaced in time during use, which increases the use cost of the dressing and limits the popularization and use of calcium alginate fiber to a certain extent.

Method used

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  • Method for producing antimicrobial calcium alginate fiber
  • Method for producing antimicrobial calcium alginate fiber
  • Method for producing antimicrobial calcium alginate fiber

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0021] Dissolve 30 grams of sodium alginate in 970 mL of distilled water, stir mechanically for 3 or 3.5 hours to obtain a sodium alginate solution with a concentration of 3% by mass, filter and degas under reduced pressure for 15, 18 or 20 hours to obtain a spinning stock solution, and spin The temperature of silk stock solution is 15, 20 or 30 ℃; The preparation mass percent concentration is the calcium chloride aqueous solution of 4%, then adds a certain amount of dodecyl dimethyl benzyl ammonium chloride (cation surfactant 1227), The mass percentage concentration is 2%, and this blend solution is a coagulation bath for fibers; under pressure, the above-mentioned spinning stock solution enters the above-mentioned coagulation bath through a metering pump and a spinneret, and adopts a wet spinning process. Stretching, washing, and drying to obtain antibacterial calcium alginate fibers; in the above steps, the temperature of the coagulation bath is 15°C, 20 or 25°C, and the dra...

Embodiment 2

[0023] Dissolve 40 grams of sodium alginate in 960 mL of distilled water, stir mechanically for 3.5 or 4 hours to obtain a sodium alginate solution with a concentration of 4% by mass, filter and statically defoam for 20, 24, 26 or 30 hours to obtain a spinning stock solution, spin The temperature of the silk stock solution is 30, 35 or 40°C; prepare an aqueous solution of calcium chloride with a mass percent concentration of 5%, and then add a certain amount of alkyl dimethyl benzyl ammonium chloride to make the mass percent concentration 1%, This blending solution is a coagulation bath for fibers; under pressure, the above-mentioned spinning stock solution enters the above-mentioned coagulation bath through a metering pump and a spinneret, and adopts a wet spinning process to obtain antibacterial seaweed after drawing, washing and drying Calcium acid fiber; in the above steps, the temperature of the coagulation bath is 25, 30 or 35°C, the drafting adopts a three-stage drawing ...

Embodiment 3

[0025] Dissolve 50 grams of sodium alginate in 950 mL of distilled water, stir mechanically for 4.5 or 5 hours to obtain a sodium alginate solution with a mass percentage concentration of 5%, and obtain a spinning stock solution after filtering and static defoaming for 26 or 30 hours. The temperature of the spinning stock solution 40, 45 or 50°C; prepare an aqueous solution of calcium chloride with a mass percent concentration of 6%, and then add a certain amount of chlorhexidine to make the mass percent concentration 1.5%. This blended solution is the coagulation of the fiber bath; under pressure, the above-mentioned spinning stock solution enters the above-mentioned coagulation bath through a metering pump and a spinneret, and adopts a wet spinning process to obtain antibacterial calcium alginate fibers after being drawn, washed, and dried; in the above steps, The temperature of the coagulation bath is 35 or 40°C, the drawing adopts a three-stage drawing process, and the draf...

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Abstract

The invention discloses a method for manufacturing an antimicrobial calcium alginate fibre. A sodium alginate is used as spinning stock solution; in a solidification bath containing an antimicrobial agent, the antimicrobial calcium alginate fibre is obtained by a wet-method spinning process; and the antimicrobial agent is a cationic compound which is combined with large molecules of the calcium alginate fibre through ionic bonds. The antimicrobial calcium alginate fibre obtained by the method has no toxicity and no side effect on human body; the antimicrobial agent and the large molecules of the fibre are combined by the ionic bonds in order that the antimicrobial agent has long-lasting antimicrobial function; in addition, the fibre retains the excellent quality of the calcium alginate fibre, has excellent hygroscopic property and good mechanical property, can be used for manufacturing medical dressings, has the advantages of convenient use, comfortable application and good ventilation, the acceleration of the healing of wound, the relieving of the pains of patients and the like, can be also used for manufacturing clothing and industrial textiles by pure spinning or blended spinning with cotton, mucilage glue, bamboo pulp, fur, ramie, soybean protein fibre and the like.

Description

technical field [0001] The invention relates to a manufacturing method of calcium alginate fiber with antibacterial function. Background technique [0002] With the development of science and technology and the improvement of people's quality of life, more and more attention has been paid to medical and health care, and traditional medical dressings have been difficult to meet people's needs. Traditional medical dressings are mostly gauze made of cellulose fibers such as cotton and viscose. The disadvantages are: ① cannot keep the wound moist, and the wound healing is delayed; ② dressing fibers are easy to fall off, causing foreign body reactions; ③ wound granulation tissue is easy to grow When the dressing is inserted into the mesh of the dressing, the new tissue will be damaged when the dressing is changed, causing secondary injury to the wound; ④When the dressing is soaked, pathogens can easily pass through; ⑤The water absorption is limited, and the wound exudate is mainl...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F9/04D01F11/00D01D5/06A61L15/28
Inventor 朱平隋淑英张传杰
Owner 山东康康新材料科技有限公司
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