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

A technology of cellulose fiber and fluid technology, which is applied in the processing field of cellulose fiber with anti-inflammatory function based on supercritical CO2 fluid technology, and can solve the problems of relatively small content of functional content, complicated finishing process, and single function. Achieve good sustained-release effect, good hand feeling, and increase effective volume

Active Publication Date: 2018-12-21
SUZHOU UNIV +2
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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

Method used

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

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0033] Example 1: Supercritical CO 2 Method for fluid loading of anti-inflammatory drug tea polyphenols to viscose fibers

[0034] Firstly, the viscose fabric was washed with ethanol and deionized water, dried and balanced for 24 hours and weighed. The tea polyphenols were weighed according to 7.5% of the weight of the viscose fabric, and 20% ethanol solution was prepared with water, and then 0.04mol / L AOT was prepared. / ethanol solution, put into a clean container to prepare a microemulsion.

[0035] Put the prepared microemulsion into the medicine tank of the high pressure equipment, and then put the viscose fabric. Cool the CO with a cooling tank 2 Gas CO flowing out of the cylinder 2 Cooled into liquid, the pressure of high-pressure equipment is set to 19MPa, the temperature is 60℃, CO 2 Converted to supercritical fluid, after immersion equilibrium for 4.5H, the experiment ended, and the viscose fiber loaded with tea polyphenols was obtained. The drug loading of visco...

Embodiment 2

[0039] Example 2: Supercritical CO 2 Method of fluid loading anti-inflammatory drug indoleacetic acid to hemp fibers

[0040] Weigh an appropriate amount of hemp fiber, prepare a water-containing ionic liquid 1-butyl-3-methylimidazolium chloride as a solution, the moisture content is 2%, and immerse the hemp cellulose fiber in it, the bath ratio range is 1:25, set The temperature was 65°C and the time was 30min. After finishing, the hemp fiber was taken out.

[0041] Wash the pre-swollen hemp fiber with ethanol and deionized water, dry it and balance it for 24 hours, weigh it, weigh 8.5% indole acetic acid according to the weight of the hemp fiber, prepare a 40% ethanol solution with water, and then prepare 0.06mol / L AOT / ethanol solution, put into a clean container to prepare a microemulsion.

[0042] Put the prepared microemulsion into the medicine tank of the high-pressure equipment, and then put the hemp fiber. The carbon dioxide gas flowing out of the carbon dioxide cy...

Embodiment 3

[0046] Example 3: Supercritical CO 2 Method of fluid loading anti-inflammatory drug perillyl alcohol to modal fibers

[0047] First, take an appropriate amount of modal fabric, wash it with ethanol and deionized water, dry it for 24 hours and weigh it, weigh 7.5% perillyl alcohol according to the weight of the modal fabric, put it into the medicine tank of the high-pressure equipment, and add 0.1% of the weight of the modal fabric. of acetone, and then into the modal fabric. The gaseous carbon dioxide flowing out of the carbon dioxide cylinder is cooled into a liquid with a cooling tank.

[0048] The pressure of the high-pressure equipment is first set to 12Mpa, the temperature is 35°C, and the carbon dioxide becomes a supercritical fluid. After immersion and equilibrium for 25min, the pressure rises to 26MPa at a rate of 0.6MPa / min; Descending until the end of the experiment yielded modal fibers loaded with anti-inflammatory perilloid alcohols. The modal fiber drug loading...

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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 ...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D06M23/00D06M23/10D06M101/06
CPCD06M23/00D06M23/10D06M2101/06
Inventor 朱维维王红星龙家杰肖红施楣梧
Owner SUZHOU UNIV
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