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Bamboo charcoal Lyocell fiber and preparation process thereof

A preparation process, bamboo charcoal technology, applied in the direction of fibrous filler, fiber chemical characteristics, artificial filament in cellulose solution, etc., to achieve uniform distribution of moisture absorption and dehumidification performance, simplify solvent recovery method, and reduce recovery investment.

Active Publication Date: 2014-02-05
SHANDONG YINGLI IND
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] The technical problem to be solved by this invention is to provide a kind of bamboo charcoal Lyocell fiber and its preparation process, which will not pollute the solvent, and the product has good antibacterial and antibacterial, moisture absorption and moisture removal properties, thereby eliminating the defects in the above-mentioned background technology

Method used

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  • Bamboo charcoal Lyocell fiber and preparation process thereof

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Embodiment 1

[0031] A kind of preparation technology of bamboo charcoal Lyocell fiber, step is as follows:

[0032] (1) Bamboo charcoal purification and surface modification: Take 10g of bamboo charcoal material, grind the bamboo charcoal material to the nanometer level, the particle size is 50nm, add the nano-bamboo charcoal to the nitric acid solution of 3mol / , wherein the bamboo charcoal is 15% of the solution mass, in Reflux at 60°C for 30 hours, then repeatedly wash with deionized water until neutral, dry the bamboo charcoal in a vacuum oven at 120°C for 2 hours, then grind the dried bamboo charcoal and add it to 7mol / L ammonia solution , wherein the bamboo charcoal is 20% of the solution mass, shaken at a constant temperature in a constant temperature oscillator at 40°C for 3 hours, then repeatedly washed with deionized water until neutral, and then vacuum-dried the bamboo charcoal in a vacuum oven at 80°C for 6 hours;

[0033] (2) Grind the bamboo charcoal material prepared in step ...

Embodiment 2

[0039] A kind of preparation technology of bamboo charcoal Lyocell fiber, step is as follows:

[0040] (1) Bamboo charcoal purification and surface modification: Grind the bamboo charcoal material to the nanometer level, the particle size is 200nm, add the nano-bamboo charcoal to the nitric acid solution of 8mol / , wherein the bamboo charcoal is 30% of the solution mass, and reflux at 90°C for 10 hours, and then repeatedly washed with deionized water until neutral, the bamboo charcoal was vacuum-dried in a vacuum oven at 80°C for 6 hours, and then the dried bamboo charcoal was ground and added to a 4mol / L ammonia solution, wherein the bamboo charcoal was a solution 40% of the mass, shake at a constant temperature in a constant temperature oscillator at 70°C for 8 hours, then repeatedly wash with deionized water until neutral, and then dry the bamboo charcoal in a vacuum oven at 120°C for 2 hours in vacuum;

[0041] (2) Grind the bamboo charcoal material prepared in step (1) aga...

Embodiment 3

[0047] A kind of preparation technology of bamboo charcoal Lyocell fiber, step is as follows:

[0048] (1) Bamboo charcoal purification and surface modification: Grind the bamboo charcoal material to the nanometer level, the particle size is 150nm, add the nano-bamboo charcoal to the nitric acid solution of 5mol / , wherein the bamboo charcoal is 23% of the solution mass, and reflux at 75°C for 20 hours, and then repeatedly washed with deionized water until neutral, the bamboo charcoal was vacuum-dried in a vacuum oven at 100°C for 4 hours, and then the dried bamboo charcoal was ground and added to a 5.5mol / L ammonia solution, wherein the bamboo charcoal was 30% of the solution mass, shake at a constant temperature in a 55°C constant temperature oscillator for 5.5 hours, then repeatedly wash with deionized water until neutral, and then dry the bamboo charcoal in a vacuum oven at 100°C for 3.5 hours in vacuum;

[0049] (2) Grind the bamboo charcoal material prepared in step (1) a...

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Abstract

The invention discloses a bamboo charcoal Lyocell fiber and provides a preparation method thereof. The preparation method comprises the following steps: performing surface modification treatment on bamboo charcoal, then mixing the bamboo charcoal with a concentrated NMMO (N-Methylmorpholine-N-oxide) water solution, mixing the mixture with activated cellulose pulp for dissolving, vacuumizing, performing heat preservation, extracting redundant water continuously to obtain a spinning raw solution, and finally, spinning to prepare the bamboo charcoal Lyocell fiber with bamboo charcoal content of 3wt%-20wt%. Through the preparation method, no extra reagent is introduced, so that the recycling of the solvent is facilitated, and the mechanical property of the fiber is not reduced; meanwhile, the prepared bamboo charcoal Lyocell fiber is excellent in performance of bacteria removal, bacteriostasis, moisture absorption and moisture removal.

Description

technical field [0001] The invention relates to the technical field of Lyocell fibers, in particular to a bamboo charcoal Lyocell fiber and a preparation process thereof. Background technique [0002] Cellulose is the most abundant and widely distributed natural polymer on the earth, and it is an inexhaustible renewable resource in nature. Cellulose fiber has the advantages of high strength, good dyeability, good spinning performance and wide industrial application. Therefore, the market demand for cellulose fiber in the world has continued to increase in recent years. The cellulose fibers produced by using NMMO aqueous solution as the cellulose solvent become Lyocell fibers, and bamboo charcoal Lyocell fibers can be made by adding bamboo charcoal to the spinning stock solution. Bamboo charcoal has a porous structure, its molecules are fine and porous, its texture is hard, and it has strong adsorption capacity. It can eliminate odor, absorb moisture, prevent mildew, inhibit...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F2/02D01F1/10C09C1/44C09C3/06
Inventor 韩荣桓孙永连朱波陈保磊李丽丽李永威杨祥泽
Owner SHANDONG YINGLI IND
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