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A kind of fine processing method of kenaf fiber

A technology of kenaf fiber and processing method, which is applied in the field of hemp fiber processing, can solve the problems of large amount of chemicals used, short kenaf process fibers, and long time consumption, and achieve environmental protection pressure relief, good degumming effect, and reduced consumption Effect

Active Publication Date: 2018-09-18
山东恒丰新型纱线及面料创新中心有限公司
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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 processing method of kenaf fiber, to overcome the ubiquitous time-consuming and large amount of chemicals used in the degumming method of the prior art, and the prepared kenaf fiber is short, thick, Hard, low strength and other technical problems

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0081] Raw material origin of kenaf bast: Hunan

[0082] The processing method is as follows:

[0083] Put the kenaf 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 kenaf bast.

[0084] Put the cooked kenaf raw material directly into the steam flash explosion device, heat it so that the water vapor pressure in the steam flash explosion device is 1.0MPa, and keep this pressure for 1 minute; then open the valve and release the pressure quickly.

[0085] Collect the kenaf fibers ejected from the steam flash explosion equipment, and then make cakes, put the kenaf bast and hemp cages in the degumming tank together, and pump FeSO with a mass percentage concentration of 0.05% 4 Solution, until the kenaf bast is covered, at room temperature, use a high-pressure pump to make FeSO 4 Circulate the solution internally and externally for 15 minutes to empty the FeSO 4 Af...

Embodiment 2

[0094] Raw material origin of kenaf bast: Shandong

[0095] The processing method is as follows:

[0096] Put the kenaf 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 kenaf bast.

[0097] Put the kenaf raw material after cooking and removing impurities directly into the steam flash explosion device, heat to make the water vapor pressure in the steam flash explosion device be 1.5MPa, and keep this pressure for 5 minutes; then open the valve and release the pressure quickly.

[0098] Collect the kenaf fibers ejected from the steam flash explosion equipment, and then make cakes, place the kenaf bast and hemp cages in the degumming tank together, and pump FeCl with a mass percentage concentration of 0.1% 2 Solution, until the kenaf bast is covered, at room temperature, use a high-pressure pump to make FeCl 2 Circulate the solution internally and externally for 3...

Embodiment 3

[0107] Raw material origin of kenaf bast: Jiangsu

[0108] Processing 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 2 hours, the urea peroxide solution is used instead of hydrogen peroxide, and the mass percent concentration of the urea peroxide solution is 1.5%;

[0109] All the other are the same as in Example 1.

[0110] Product inspection test results:

[0111] The obtained kenaf fiber has a residual glue rate of 8.62%, an average fiber length of more than 40mm, a fiber strength of 3.86cN / dtex and a fiber fineness of 15.7dtex.

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Abstract

The invention discloses a fine processing method of a hibiscus-cannabinus fiber. The fine processing method comprises a step of cooking for impurity removal of hibiscus-cannabinus bast, a step of steam-explosion activation treatment, a step of cage-loading cake making, a step of directive catalytic oxidation, a step of chemical degumming and a step of post treatment. After the hibiscus-cannabinus bast is subjected to the steam-explosion activation treatment, the directive catalytic oxidation treatment is carried out on lignin and hemicellulose by adopting a ferrite solution and an activating agent; a series of technical means of steam-explosion degumming treatment, the directive catalytic oxidation and the like are organically combined together; the fine processing method of the hibiscus-cannabinus fiber, which is provided by the invention, is enabled to have the characteristics that the degumming effect is good, an obtained hibiscus-cannabinus fiber finished product is good in indexes of fineness, length, strength and the like, and is excellent in quality, the spinnability is good, and the like; moreover, in a processing procedure, the quantity of consumption of a chemical is small; the environmental protection pressure is low; a process is simple to control; the quantity of consumption of public works of water, electricity, steam and the like is small; the efficiency is high; the fine processing method of the hibiscus-cannabinus fiber is suitable for industrialized production, and has a favorable market popularization prospect.

Description

technical field [0001] The invention relates to a processing method of hemp fiber, in particular to a refined processing method of kenaf fiber. Background technique [0002] Kenaf is an important high-quality natural fiber resource, which has a short growth period, a large growth volume, and strong adaptability. It is very rich in resources in the world. [0003] Kenaf fiber is a kind of green and ecological textile fiber. It has excellent properties such as moisture absorption, breathability, antibacterial, mildew resistance, anti-ultraviolet and antistatic properties like commonly used fibers such as ramie and flax. In addition, kenaf fiber fabric The style is unique, so it has very important application and development value. But for a long time, kenaf fiber can only be used for low-grade products such as processing sack, burlap, hemp rope because its single fiber is short, thick, lignin content height etc. in the fiber. [0004] Usually, the length of single fiber in k...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): D01C1/02
CPCD01C1/02
Inventor 韩光亭张元明徐维敬李显波孙婷婷
Owner 山东恒丰新型纱线及面料创新中心有限公司
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