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A kind of refined production method of apocynum dry hemp fiber

A production method and apocynum technology are applied in the field of refined production of apocynum refined and dried hemp fibers, which can solve the problems of large usage of chemicals, short apocynum fibers, long time consumption, etc., and achieve reduced environmental pressure and good fiber strength indicators. , good degumming effect

Active Publication Date: 2018-09-18
QINGDAO UNIV
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0012] The purpose of the present invention is to provide a fine-grained production method of apocynum fiber, to overcome the ubiquity of the degumming method in the prior art, which takes a long time, uses a large amount of chemicals, and the prepared apocynum fiber is short and thick. , hardness, low strength and other technical problems

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0079] Apocynum bast raw material origin: Xinjiang

[0080] The production method is as follows:

[0081] Put the apocynum bast in a steaming ball, a cooking pot or a cooking tank, immerse in the cooking liquid, heat to a boiling state, and cook for 0.5 hour to remove impurities from the apocynum bast.

[0082] Place the bast of apocynum bast removed by cooking in a closed tank, immerse in ethylenediamine with a mass percentage concentration of 40%, and continue stirring at room temperature for 10 hours, so that the bast of apocynum is fully infiltrated and activated, and then, Empty the ethylenediamine in the tank, and take out the bast of apocynum bast that has been infiltrated and activated. The raw material of apocynum after infiltration and activation is beaten into cakes, and the bast and hemp cages obtained from the cakes are placed in a degumming tank together, and FeSO with a mass percentage concentration of 0.05% is pumped into it. 4 Solution, until submerged in th...

Embodiment 2

[0091] Apocynum bast raw material origin: Xinjiang

[0092] The production method is as follows:

[0093] Put the apocynum bast in a steaming ball, a cooking pot or a cooking tank, immerse in the cooking liquid, heat to a boiling state, and cook for 0.5 hour to remove impurities from the apocynum bast.

[0094] Place the bast of apocynum bast removed by cooking in a closed tank, immerse in dimethylformamide with a mass percentage concentration of 40%, and keep stirring at room temperature for 15 hours, so that the bast of apocynum is fully infiltrated and activated, Then, the dimethylformamide in the tank was emptied, and the activated apocynum bast was taken out.

[0095] The raw material of apocynum after infiltration and activation is beaten into cakes, and the bast and hemp cages obtained by beating the cakes are placed in the degumming tank together, and the FeCl concentration of 0.1% by mass percentage is pumped into it. 2 solution, until the bast of apocynum was subme...

Embodiment 3

[0104] Apocynum bast raw material origin: Xinjiang

[0105] Production method: In addition to FeSO 4 The mass percent concentration of the solution is 1%, the continuous cooking time of the alkaline degumming solution is 1.5 hours, the urea peroxide solution is used to replace hydrogen peroxide, dimethylacetamide is used to replace ethylenediamine, and the mass percent concentration of the urea peroxide solution is 1.5 % other than;

[0106] All the other are the same as in Example 1.

[0107] Product inspection test results:

[0108] The obtained apocynum fiber has a residual glue rate of 4.62%, an average fiber length of more than 35mm, a fiber strength of 6.2cN / dtex and a fiber fineness of 3.9dtex.

[0109] It should be pointed out that the above-mentioned surfactants can also be, such as: sodium dodecylsulfonate, sodium lauryl sulfate, sodium dodecylbenzenesulfonate, sodium dioctyl sulfosuccinate, lauryl Alcohol sulfate MA24F, sodium secondary alkyl sulfonate SAS60, pu...

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Abstract

The invention discloses a refinement production method of a refine kendir fiber. The production method comprises following steps: boiling to removing impurities, impregnating kendir in organic amine to carry out activation, making kendir into kendir cakes, filling kendir cakes into a cage, carrying out directional catalytic oxidation, carrying out chemical degumming, and performing a post treatment. An organic amine solvent is used to impregnate kendir bast, then a ferrous salt solution and an activator are used to carry out directional catalytic oxidation on lignin, pectin, and hemi-cellulose, and the impregnation and activation treatment is organically combined with the directional catalytic oxidation; so the provided production method has a good degumming effect. The obtained finished product of kendir fiber has the characteristics of good indexes of fineness, length, and strength, high quality, and good spinning property. Moreover, during the processing process, the consumption amount of chemicals is little, the environment pressure is little, the technology control is simple, the consumption of water, electricity, and steam is little, the efficiency is high, and the method is suitable for industrial production and thus has a good market popularization prospect.

Description

technical field [0001] The invention relates to a production method of hemp fiber, in particular to a refined production method of apocynum refined and dried hemp fiber. Background technique [0002] Apocynum, also known as wild hemp, Zeqima, red willow, oleander hemp, etc., is a perennial herbaceous plant belonging to the family Apocynaceae, widely distributed in northern China, concentrated in the Tarim River and Xinjiang Along the Kongque River, it is named for its most abundant growth in the Luobu Plain in Xinjiang. Apocynum fiber has many excellent characteristics, soft to the touch and good luster, has the luster of silk, the lightness of hemp, the softness of cotton, the ductility of velvet, and has pharmacological effects. "King of wild fibers", so it is recognized as an ideal textile fiber. [0003] Apocynum fiber is a kind of bast fiber, which is located in the bast tissue on the stem of apocynum plant, in the form of fiber bundles, and individual fibers exist al...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01C1/02
CPCD01C1/02
Inventor 张元明韩光亭辛玉军姜伟李福顺
Owner QINGDAO UNIV
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