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A supercritical co 2 Fluid technology makes cellulose fibers have anti-wrinkle processing method

A cellulose fiber and fluid technology technology, which is applied in the processing field of cellulose fibers with anti-wrinkle function based on supercritical CO2 fluid technology, can solve the problems of single function, low relative content of functional contents, complicated finishing process, etc. Increase the effective volume, good sustained release effect, good feel

Active Publication Date: 2021-04-23
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 processing such as hydrophilization), 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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  • A supercritical co <sub>2</sub> Fluid technology makes cellulose fibers have anti-wrinkle processing method
  • A supercritical co <sub>2</sub> Fluid technology makes cellulose fibers have anti-wrinkle processing method
  • A supercritical co <sub>2</sub> Fluid technology makes cellulose fibers have anti-wrinkle processing method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0034] Example 1: Supercritical CO 2 Method for fluid loading anti-wrinkle drug galacturonic acid to viscose fiber

[0035] First, wash the viscose fabric with ethanol and deionized water, dry and balance for 24 hours, weigh galacturonic acid according to 10% of the viscose fabric weight, prepare 30% ethanol solution with water, and then prepare 0.05mol / LAOT / ethanol solution, put into a clean container to prepare a microemulsion.

[0036] Put the prepared microemulsion into the medicine tank of the high-pressure equipment, and then put it into the viscose fabric. Cool the CO 2 The gas CO flowing out of the cylinder 2 Cooled into liquid, the pressure of the high-pressure equipment is set at 27MPa, the temperature is 45°C, CO 2 After changing to a supercritical fluid, immersing and balancing for 3.5 hours, the experiment ended, and viscose fibers loaded with galacturonic acid were obtained. The drug loading of viscose fiber is 8.2%.

[0037] In order to analyze the susta...

Embodiment 2

[0040] Example 2: Supercritical CO 2 Method of Fluid Loading Anti-wrinkle Drug Alanine to Hemp Fiber

[0041] Weigh an appropriate amount of hemp fiber, soak it in a 14% NaOH aqueous solution for 70 minutes at a bath ratio of 1:30, and keep the temperature of the water bath at 10°C. After the end, take out the hemp fiber.

[0042] After the hemp fiber is washed with ethanol and deionized water, it is dried and balanced for 24 hours and weighed, and alanine is weighed according to 9.5% of the weight of the hemp fiber, and a 50% ethanol solution is prepared with water, and then a 0.08 mol / L AOT / ethanol solution is prepared , put into a clean container to prepare a microemulsion.

[0043] Put the prepared microemulsion into the medicine tank of the high-pressure equipment, and then put the hemp fiber. Use a cooling tank to cool the gaseous carbon dioxide flowing out of the carbon dioxide cylinder into a liquid. The pressure of the high-pressure equipment is set at 29Mpa, the te...

Embodiment 3

[0047] Example 3: Supercritical CO 2 Method of Fluid Loading Anti-wrinkle Drug Xanthorrhizol to Modal Fiber

[0048] First, take an appropriate amount of modal fabric, wash it with ethanol and deionized water, dry it and weigh it for 24 hours, weigh xanthorrhizol according to 7.0% of the modal fabric weight, put it into the medicine tank of the high-pressure equipment, and add modal fabric weight 0.12 % methanol, then put into the modal fabric. The gaseous carbon dioxide flowing out of the carbon dioxide cylinder is cooled into liquid by cooling tank.

[0049] The pressure of the high-pressure equipment is first set to 10Mpa, the temperature is 90°C, and the carbon dioxide becomes a supercritical fluid. After immersion balance for 10 minutes, the pressure rises to 25MPa at a speed of 0.8MPa / min; Descending until the end of the experiment yielded modal fibers loaded with the anti-wrinkle drug xanthorrhizol. The drug loading of modal fiber is 6.2%.

[0050] In order to analy...

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Abstract

The present invention relates to a kind of based on supercritical CO 2 Fluid technology makes cellulose fiber have anti-wrinkle processing method, which includes: 1) pre-swell or pre-treat cellulose fiber; 2) add additives to increase the anti-wrinkle drug in supercritical CO 2 Solubility in fluid, for insoluble supercritical CO 2 The hydrophilic anti-wrinkle drugs are indirectly dissolved in supercritical CO by the method of supercritical microemulsion / reverse micelles. 2 Middle; 3) Add the anti-wrinkle medicine into the medicine tank of the high-pressure equipment, remove the air, and pass in CO 2 , at 32-120°C, raise the pressure inside the vessel to 8-30MPa to obtain supercritical CO 2 fluid, whereby the cellulose fibers are soaked in supercritical CO 2 Middle; 4) Anti-wrinkle drugs are dissolved in supercritical CO 2 The fluid enters the pre-swelled cellulose fibers, and the drug-loaded supercritical CO 2 There is continuous relative movement between the cellulose fiber and the anti-wrinkle drug stays in the amorphous area inside the cellulose fiber after pressure release, forming a drug-loaded cellulose fiber capable of slow release.

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 makes cellulose fibers have anti-wrinkle processing methods. 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, anti-wrinkle and other functions, used in people's daily wear, will...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D06M23/00D06M23/10D06M13/207D06M13/342D06M15/01D06M13/144D06M101/06
CPCD06M13/144D06M13/207D06M13/342D06M15/01D06M23/00D06M23/10D06M2101/06D06M2200/20
Inventor 朱维维龙家杰肖红施楣梧
Owner SUZHOU UNIV