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Silk hemp cellulose fiber and preparation method thereof

A technology of cellulose fiber and alkali cellulose, which is applied in the field of silk and hemp cellulose fiber and its preparation, and the preparation of hemp pulp modified protein fiber. Problems such as protein fiber quality, achieve good solubility, adjustable HLB value, and obvious synergistic effect

Active Publication Date: 2014-12-10
ZHONGKE TEXTILE RES INST QINGDAO CO LTD
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

On the one hand, the method of dissolving protein by protein solution will completely destroy the original cavity structure of protein fibers. If cross-linking treatment is not used, the loss will be large in the coagulation bath or refining process. If cross-linking treatment is used, aldehydes will inevitably be used The acetalization of substances or the denaturation and curing of heavy metal chromium salts not only affect the quality of protein fibers, but also cause serious environmental pollution.
On the other hand, the method of adding nano- or micron-shaped protein particles can avoid the above problems, but the protein particles are hard in the fiber, which seriously affects the strength index and feel of the fiber.

Method used

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  • Silk hemp cellulose fiber and preparation method thereof
  • Silk hemp cellulose fiber and preparation method thereof
  • Silk hemp cellulose fiber and preparation method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0046] A kind of preparation method of silk hemp cellulose fiber, concrete preparation method is as follows:

[0047] 1. Preparation of hemp pulp viscose spinning stock solution:

[0048] 1. Impregnated powder of hemp pulp cellulose

[0049] The hemp pulp with a degree of polymerization of 400 and a methylcellulose content ≥ 90% is soaked once in a solution of sodium hydroxide and a surfactant accounting for 0.03wt% of methylcellulose in the hemp pulp at a concentration of 250g / l and a temperature of 52°C. Carry out a press to obtain the first alkali cellulose with a cellulose of 22.5% and an alkali content of 16%, and then impregnate it twice in a sodium hydroxide solution with a concentration of 178g / l and a temperature of 50°C and obtain a cellulose after a second press. The secondary alkali cellulose with a fiber content of 28.5% and an alkali content of 14.0% was added with 0.03 wt% pulverizing denaturant of p-methyl cellulose and then pulverized to obtain alkali fiber w...

Embodiment 2

[0067] 1. Preparation of hemp pulp viscose spinning stock solution:

[0068] 1. Impregnated powder of hemp pulp cellulose

[0069] The hemp pulp with a degree of polymerization of 600 and a methylcellulose content ≥ 90% is soaked once in a solution of sodium hydroxide and a surfactant accounting for 0.15wt% of methylcellulose in the hemp pulp with a concentration of 248g / l and a temperature of 56°C. Carry out one pressing to obtain the first alkali cellulose with 27.5% methyl fiber and 19% alkali, and then carry out secondary impregnation in the sodium hydroxide solution with a concentration of 180g / l and a temperature of 53°C and obtain formazan after the second pressing. The secondary alkali cellulose with a fiber content of 30.5% and an alkali content of 14.8% was added with 0.05 wt% pulverizing denaturant of p-methyl cellulose and then pulverized to obtain alkali fiber with a pulverization degree of ≤ 180s.

[0070] 2. The old age of ephedrine cellulose

[0071] Put the ...

Embodiment 3

[0087] 1. Preparation of hemp pulp viscose spinning stock solution:

[0088] 1. Impregnated powder of hemp pulp cellulose

[0089] After immersing hemp pulp with a degree of polymerization of 550 and a methylcellulose content ≥ 90% in a solution with a concentration of 246g / l and a temperature of 54°C of sodium hydroxide and a surfactant accounting for 0.08wt% of methylcellulose in the hemp pulp Carry out a press to obtain the first alkali cellulose with a cellulose of 24.5% and an alkali content of 17.0%, and then impregnate it twice in a sodium hydroxide solution with a concentration of 178g / l and a temperature of 51°C and obtain a cellulose after a second press. The secondary alkali cellulose with a fiber content of 29.5% and an alkali content of 14.3% is added with 0.04wt% pulverizing denaturant of p-methyl cellulose and then pulverized to obtain alkali cellulose with a pulverization degree of alkali fiber ≤ 180s.

[0090] 2. The old age of ephedrine cellulose

[0091] P...

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Abstract

The invention provides a silk hemp cellulose fiber and a preparation method thereof. The cellulose fiber is 1.8-2.5cN / dtex in dry breaking strength, is 0.9-1.6cN / dtex in wet breaking strength, is 16-24% in dry breaking elongation, is less than or equal to 12mg / 100g in residual sulfur content, is more than or equal to 90% in staphylococcus aureus antibacterial rate, is more than or equal to 90.0% in escherichia coli antibacterial rate, and is more than or equal to 80.0% in candida albicans suppression ratio. The preparation method of the silk hemp cellulose fiber comprises the steps of preparing a hemp pulp viscose spinning solution, preparing a protein dispersing emulsion, preparing a hemp pulp protein modified spinning solution, spinning and aftertreatment. The silk hemp cellulose fiber has the smooth and soft hand feeling, feels like hemp, has the smooth zigzagged cross section like the hollow cross section of a natural hemp material, is environmentally-friendly and has the good wearability and textile processability, and besides, a protein material is uniformly dispersed inside the fiber, and therefore, the silk hemp cellulose fiber can resist multiple washing and cannot shed off.

Description

technical field [0001] The invention relates to the technical field of textiles, in particular to the preparation of a hemp pulp modified protein fiber, in particular to a silk hemp cellulose fiber and a preparation method thereof. Background technique [0002] With the progress of society and the improvement of people's living standards, the concept of people's clothing is constantly updated, which puts forward higher requirements for the functionality of textiles and the comfort and beauty of products. However, the production of natural fibers such as cotton, hemp, silk, and wool is affected by the natural climate and the contradiction between grain and cotton, and the output growth is very slow, which is far from meeting the actual demand. [0003] At present, the main sources of fiber are petroleum, coal and other underground non-renewable petrochemical resources, and the other is natural renewable resources such as cotton, hemp, silk and wool that are planted and farmed...

Claims

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Application Information

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IPC IPC(8): D01F2/08D01F2/20D01F11/02
Inventor 刘逸新姜明亮
Owner ZHONGKE TEXTILE RES INST QINGDAO CO LTD
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