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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 addition, because the existing equipment is a single device, it causes the problem of high energy consumption and low efficiency

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

Embodiment 1

[0044] Embodiment 1 A kind of method utilizing supercritical carbon dioxide technology to modify natural fiber, comprises the following steps:

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

[0046] 200 kilograms of cotton natural fibers are loaded into the functional modification kettle, and 2kg rose dye and 1kg peppermint extract are loaded into the mixing kettle;

[0047] Described natural plant extract and plant dye 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 Senfu 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. Preparation of supercritical carbon dioxide

[0051] Then the liquid carbon dioxide stored in the liquid carbon dioxide storage tank is injected i...

Embodiment 3

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

[0067] Cotton, silk and wool have the same physical indexes such as fineness and breaking strength before modification.

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

[0069] The performance test results of natural fibers modified by peppermint extract listed in Table 1.

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

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

[0072]

[0073] As can be seen from the above table 2, examples 3-5 of the present invention are cotton, silk and wool natural fibers prepared by supercritical carbon dioxide technology and water as Cotton, silk, and wool natural f...

Embodiment 6

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

[0083] Cotton, linen, silk, and wool have the same physical indicators such as denier and breaking strength before modification.

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

[0085] The performance test results of the wormwood extracts and violet dyes listed in Table 3 on the modified cotton, hemp, silk and wool natural fibers respectively. The experimental group is the natural fiber modified by supercritical carbon dioxide technology, and the control group is the fiber prepared by using water as the solvent.

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

[0087]

[0088] As can be seen from the above table 3, the examples 7-10 of the present invention are the cotton, silk, and wool natural fibers containing wormwood extract prepared b...

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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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