Natural fiber product modified by adopting supercritical carbon dioxide technology and modification method

A natural fiber and carbon dioxide technology, which is applied in dyeing, textile and papermaking, and textile material processing, can solve the problems of low efficiency, high energy consumption, and high one-time input cost, and achieve high efficiency, uniform color, and good society. benefit effect

Inactive Publication Date: 2017-08-04
BESTEE MATERIAL (TSINGTAO) CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, since dyeing needs to be realized through special dyeing equipment, the one-time investment cost is relatively high
In

Method used

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  • Natural fiber product modified by adopting supercritical carbon dioxide technology and modification method
  • Natural fiber product modified by adopting supercritical carbon dioxide technology and modification method
  • Natural fiber product modified by adopting supercritical carbon dioxide technology and modification method

Examples

Experimental program
Comparison scheme
Effect test

Example Embodiment

[0044] Example 1 A method for modifying natural fibers using supercritical carbon dioxide technology, including the following steps:

[0045] 1. The addition of natural fibers, plant dyes and natural plant extracts

[0046] Fill the functional modification kettle with 200 kg of natural cotton fiber, and fill the mixing kettle with 2 kg of rose dye and 1 kg of mint extract;

[0047] The natural plant extracts and plant dyes can be bought on the market;

[0048] The rose dye is produced by Henan Deyu Chemical Co., Ltd., color code: #E71B64;

[0049] The mint extract is produced by Shaanxi Sunfu Natural Products Co., Ltd., with a moisture content of 2.5-3%, an ash content of 0.3-0.5%, a heavy metal content of ≤3ppm, a mesh number of 200-240 mesh, and a yeast and mold content of < 20cfu / g.

[0050] 2. Supercritical carbon dioxide preparation

[0051] Then the liquid carbon dioxide stored in the liquid carbon dioxide storage tank is injected into the high-pressure carbon dioxide pump through ...

Example Embodiment

[0066] Example 3 Performance test of mint extract and rose dye on natural fiber modification

[0067] Cotton, silk and wool have the same size and breaking strength before modification.

[0068] In the following examples, except for the different types of natural fibers, the other process conditions are the same as those in Example 1.

[0069] Table 1 lists the performance test results of mint extract modified natural fiber.

[0070] The experimental group is a functional fiber prepared with supercritical carbon dioxide technology, and the control group is a functional fiber prepared with water as a solvent.

[0071] Table 2 Quality indicators of experimental group and control group

[0072]

[0073] From Table 2 above, it can be seen that Examples 3-5 of the present invention are prepared by using supercritical carbon dioxide technology containing mint extract (content is 1% of the fiber mass) cotton, silk, wool natural fiber and using water as The mechanical index of the natural fiber...

Example Embodiment

[0082] Example 6 Performance test of wormwood extract and violet dye on modification of natural fiber

[0083] Cotton, linen, silk and wool have the same size and breaking strength before modification.

[0084] In the following examples, except for the different types of natural fibers, the other process conditions are the same as those in Example 1.

[0085] Table 3 lists the performance test results of the wormwood extract and violet dye on cotton, hemp, silk, and wool natural fibers after modification. The experimental group is a natural fiber modified with supercritical carbon dioxide technology, and the control group is a fiber prepared with water as a solvent.

[0086] Table 3 Quality indicators of experimental group and control group

[0087]

[0088] From Table 3 above, it can be seen that Examples 7-10 of the present invention are prepared by using supercritical carbon dioxide technology to prepare cotton, silk, and wool natural fibers containing wormwood extract, and the comp...

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Abstract

The invention provides a natural fiber product modified by adopting a supercritical carbon dioxide technology. The modified natural fiber product is a cotton, hemp, silk or wool natural fiber or a yarn, fabric or clothing prepared from the natural fiber. The invention further provides a method for modifying the natural fiber product by adopting the supercritical carbon dioxide technology. The method comprises the step of adding the natural fiber and a vegetable dye and a natural plant extract; the natural fiber is modified by innovatively adopting the supercritical carbon dioxide technology; water or other reagent is not utilized as a solvent, no wastewater or waste is generated or discharged, and the method has the characteristics of ecological environment protection and wide adaptability of fabric varieties and belongs to an environment-friendly functional modification technology. The natural fiber which is functionally modified by adopting the supercritical carbon dioxide technology is uniform in color and luster, extremely good in reproducibility and free of an injury to the natural fiber.

Description

technical field [0001] The invention relates to a modification method of natural fibers, in particular to a natural fiber product modified by supercritical carbon dioxide technology and a modification method. Background technique [0002] Natural fiber is the textile fiber obtained directly from the original nature or artificially cultivated plants and artificially raised animals. It is an important source of materials for the textile industry. Although the production of synthetic fibers has grown rapidly since the middle of the 20th century, natural fibers still account for about 50% of the total annual textile fiber production. Therefore, at present, natural fibers are still the most important raw materials in the textile industry. [0003] The natural fibers that exist in nature mainly include: cotton, hemp, silk and animal hair. The molecular components of cotton and hemp are mainly cellulose, while the molecular components of silk and wool are mainly proteins (existin...

Claims

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Application Information

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IPC IPC(8): D06P1/94D06P1/34D06P1/44D06P3/14D06P3/60D06P3/04D06P5/02D06B9/00
CPCD06P1/94D06B9/00D06P1/34D06P1/44D06P3/04D06P3/14D06P3/60D06P5/02
Inventor 刘丽
Owner BESTEE MATERIAL (TSINGTAO) CO LTD
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