Preparation method of medical cotton gauze with strong water absorption capacity

Abstract

The invention relates to the technical field of medical cotton gauzes, and discloses a preparation method of a medical cotton gauze with strong water absorption capacity. The preparation method comprises: S1, carrying out puffing pretreatment on a cotton gauze; S2, carrying out carboxymethylation modification treatment on the pre-treated cotton gauze by using sodium hydroxide and chloroacetic acid, wherein a molar ratio of sodium hydroxide to chloroacetic acid is 2-3:1, and a mass ratio of chloroacetic acid to cotton gauze is 1.5-2:1; and S3, carrying out primary water washing, wherein washingis performed 3-5 times with water. According to the present invention, through the high water absorption treatment, the prepared medical gauze has good water absorption performance, has the water absorption rate of more than 400%, and can provide the moist environment for the wound, such that the skin cannot be easily damaged when the gauze is removed from the wound so as not to cause secondary bleeding and so as not to inconveniently use caused by the secondary wound sticking.

Description

technical field [0001] The invention relates to the technical field of medical cotton gauze, in particular to a method for preparing medical cotton gauze with strong water absorption capacity. Background technique [0002] Gauze is a kind of cotton fabric with sparse warp and weft. It belongs to textile raw materials, cloth, and is characterized by sparseness and obvious grids. [0003] There are various types of gauze and a wide range of uses. The following uses the types and varieties of gauze as clues to explain one by one: gauze gauze (17 sheets) 1. Pure cotton gauze (also known as cotton gauze), mainly used for cotton quilts, silk quilt linings, and cotton-wrapped tires. It can also be used for medical use after degreasing, and for industrial use after sizing and setting. 2. Cotton bleached gauze (also known as whitening gauze or whitening gauze), because people's living conditions have improved, they advocate health. Cotton bleached gauze is processed by bleaching ...

AI Technical Summary

Problems solved by technology

[0007] Aiming at the deficiencies in the prior art, the present invention provides a method for preparing medical cotton gauze with strong water absorption capacity, which has the advantages of strong water absorption capacity, is not easy to cause secondary bleeding, and is convenient to use. The fiber in ordinary gauze only slightly swells, the absorption capacity is limited, and it cannot provide a moist environment for the wound, and when the gauze is removed from the wound, it is easy to strain the skin, causing secondary bleeding, which is not convenient for use