Processing method for enabling cellulose fibers to have anti-inflammatory function based on super-critical CO2 fluid technology

Abstract

The invention relates to a processing method for enabling cellulose fibers to have an anti-inflammatory function based on a super-critical CO2 fluid technology. The processing method comprises the following steps: 1) carrying out pre-swelling or pre-treatment on the cellulose fibers; 2) adding an auxiliary agent to increase the solubility of an anti-inflammatory medicine in super-critical CO2 fluid, and directly dissolving a hydrophilic anti-inflammatory medicine which is not easily dissolved into the super-critical CO2 fluid by adopting a super-critical micro-emulsion / reversed micelle method;3) adding the anti-inflammatory medicine into a medicine groove of high-pressure equipment, eliminating air and introducing CO2; raising the pressure in a container to be 8 to 30MPa at the temperature of 32 to 120 DEG C to obtain the super-critical CO2 fluid, so as to immerse the cellulose fibers into the super-critical CO2 fluid; 4) dissolving the anti-inflammatory medicine in the super-criticalCO2 and enabling the anti-inflammatory medicine to enter the pre-swollen cellulose fibers; enabling drug-loading super-critical CO2 fluid and the cellulose fibers to continuously do relative movement; enabling the anti-inflammatory medicine to stay in an amorphous region in the cellulose fibers after pressure relief, so as to form drug-loading cellulose fibers capable of being slowly released.

Description

technical field [0001] The present invention relates to a processing method based on supercritical fluid technology to make cellulose fibers functional, more particularly to a method based on supercritical CO 2 Fluid technology for processing cellulose fibers with anti-inflammatory properties. Background technique [0002] In recent years, with the continuous improvement of people's quality of life, people's demand for clothing has become more and more diversified, for example, from the initial cold-proof and warm-keeping to the later beauty and fashion. Increase. Existing functional clothing mainly focuses on waterproof, UV-proof, breathable, antistatic, moisture-absorbing and quick-drying, quick-perspiration, sun-proof, mosquito-proof and other functions. Combining with textiles to develop characteristic cosmetic textiles, such as textiles with moisturizing, cooling, antibacterial, anti-inflammatory, slimming, insect repellent and other functions, used in people's daily ...

AI Technical Summary

Problems solved by technology

[0003] The existing development of cosmetic textiles generally adopts chemical finishing methods including coating co-extrusion method, composite finishing method, complexation method, etc. (Handbook of Medical Textiles, 2011, 153). These methods all involve chemical reactions and can There are few types of functional substances that can be reliably applied (mainly limited to hydrophilization and other processing), and the finishing process is relatively complicated, with a single function, which cannot form a long-lasting and controllable slow-release effect

Relatively speaking, the microcapsule technology can control the release, and can prepare many types of functional drugs, but it needs to wrap the functional drugs in the encapsulation material, which involves various physical and chemical reactions. material and particle size are required ("Knitting Industry", 2017 (09): 5-7), and the composition of the capsule is mainly composed of wall thickness, the relative content of functional content is very small, and the capsule is bonded by resin On fiber products, it will affect the feel of textiles

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