Finishing process of natural antibacterial medical colored cotton bleached gauze

Abstract

The invention discloses a finishing process of natural antibacterial medical colored cotton bleached gauze, which comprises a desizing and refining one-bath process and a chlorine-oxygen double bleaching and degreasing process, the desizing and refining one-bath process mainly comprises alpha-amylase and the like, the bath ratio is 1: (15-20), the pH value is 7-8, the scouring temperature is 65-75 DEG C, and the scouring time is 60-70 minutes. The chlorine-oxygen double bleaching degreasing process formula mainly comprises sodium hypochlorite, 20% of 15% H2O2 and the like, the bath ratio of chlorine bleaching is 1: (10-15), and the bleaching time is 60-65 min; the bath ratio is 1: (15-20), the bleaching time is 60-70 minutes, and the bleaching temperature is 85-90 DEG C. The colored cotton bleached gauze is subjected to an antibacterial experiment test and a rat wound repair experiment, and results show that the antibacterial rate of the colored cotton bleached gauze on three strains including staphylococcus aureus, escherichia coli and candida albicans reaches up to about 99% or above, and the colored cotton bleached gauze can reduce infection of rat wounds and promote wound healing.

Description

technical field [0001] The invention relates to the field of medical gauze, in particular to a finishing process for natural antibacterial medical colored cotton bleached gauze. Background technique [0002] The current medical dressings can be divided into absorbable surgical dressings, non-absorbable surgical dressings, wound dressings, and dressings in terms of medical device management categories. They are used as medical supplies for dressing wounds to cover sores, wounds, etc. With the in-depth study of the pathophysiology of the wound healing process, people have a deeper understanding of the entire healing process, which has also accelerated the continuous improvement and development of medical dressings. [0003] At present, absorbent cotton gauze dressing is still the most widely used dressing in clinical practice. Its biggest role is to quickly absorb blood or wound exudate, cover the wound, and resist some bacteria from entering the wound. However, absorbent cott...

AI Technical Summary

Problems solved by technology

The bacteriostasis of natural colored cotton is due to the fact that the cavity of the fiber contains antibacterial substances such as proanthocyanidins, but when the finishing process of scouring and bleaching is not carried out, the waxy pectin in the skin layer of the colored cotton fiber forms a dense layer, and the antibacterial substances cannot From the inside to the surface of the fiber, the antibacterial performance of the colored cotton fiber cannot be well reflected at this time; after the finishing process of scouring and bleaching, the waxy pectin layer of the skin layer of the colored cotton fiber can be removed, and the colored cotton fiber is in the liquid state at this time. Under the environment, the antibacterial substances in the cavity can migrate to the surface and take effect, and the antibacterial properties of colored cotton fibers can be fully reflected

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