Preparation method of enteromorpha regenerated cellulose fibers

A technology for regenerating cellulose and prolifera, applied in the direction of single-component cellulose rayon, fiber processing, fiber chemical characteristics, etc., to achieve preferential policies for marine economic development, improve utilization value and market benefits, and feel soft and smooth.

Inactive Publication Date: 2017-05-31
威海红印食品有限公司
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

But do not utilize enteromorpha pulp to be the method for the regenerated cellulose fiber of raw material production in the prior art

Method used

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Examples

Experimental program
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preparation example Construction

[0018] A preparation method of Enteromorpha regenerated cellulose fiber, comprising the following steps:

[0019] Step S10: pulverize Enteromorpha enteromorpha and place it in a hydrolysis solution to hydrolyze the solution;

[0020] Step S20: adding sodium hydroxide to the hydrolysis solution, and then cooking to remove fatty acids in Enteromorpha to obtain a mixed solution A;

[0021] Step S30: adding ethanol to the mixed solution A, and then removing the water to obtain Enteromorpha pulp with higher cellulose content;

[0022] Step S40: adding sodium hypochlorite to the Enteromorpha pulp to bleach the Enteromorpha pulp to obtain an Enteromorpha regenerated fiber stock solution;

[0023] Step S50: adding dimethyl sulfoxide and N,N-dimethylformamide to Enteromorpha regenerated fiber stock solution to obtain Enteromorpha regenerated cellulose fiber spinning stock solution;

[0024] Step S60: Send the original spinning solution of Enteromorpha regenerated cellulose fiber into...

Embodiment 1

[0032] Weigh 30kg of fresh Enteromorpha, leak water and air-dry it for 12 hours, weigh it to 22.1kg, and crush it. Stir and crush the air-dried Enteromorpha, and hydrolyze it for 240 minutes. Put into hydrolysis solution by Enteromorpha volume 2 times, and hydrolysis solution is the aqueous solution of NMMO4-methylmorpholine-N-oxide compound and ethanol, and the mass percentage composition of 4-methylmorpholine-N-oxide compound in the hydrolysis solution is 25%, and the mass percentage of ethanol is 3%. The mass percent concentration of absolute ethanol is ≥98%.

[0033] Add sodium hydroxide according to the amount of 5g sodium hydroxide added to 1L of hydrolysis solution, and cook in water for 20 minutes at a water temperature of 80-90°C to extract and remove the fatty acids in enteromorpha protein. Heat the cooling water with steam to wash and sterilize, at a temperature of 85°C for 20 minutes, add 10ml of ethanol with a mass percentage concentration of 85%, and remove wate...

Embodiment 2

[0035] Weigh 30kg of fresh Enteromorpha, leak water and air-dry it for 12 hours, weigh it to 22.1kg, and crush it. Stir and crush the air-dried Enteromorpha, and hydrolyze it for 300 minutes. Put into hydrolysis solution by Enteromorpha volume 3 times, and hydrolysis solution is the aqueous solution of NMMO4-methylmorpholine-N-oxide compound and ethanol, and the mass percentage composition of 4-methylmorpholine-N-oxide compound in the hydrolysis solution is 20%, and the mass percentage of ethanol is 3%. The mass percent concentration of absolute ethanol is ≥98%.

[0036] Add 5g of sodium hydroxide to 1L of the hydrolysis solution, and cook for 30 minutes at a water temperature of 80-90°C to extract and remove the fatty acids in Enteromorpha protein. Heat the cooling water with steam to wash and sterilize, at a temperature of 80°C for 30 minutes, add 20ml of 85% ethanol at a temperature of 60°C, and remove water to obtain Enteromorpha pulp with a high cellulose content. Add 0...

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PUM

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Abstract

The invention discloses a preparation method of enteromorpha regenerated cellulose fibers. The preparation method comprises the following steps: crushing enteromorpha and putting the crushed enteromorpha in a hydrolytic solution; adding sodium hydroxide into the hydrolytic solution and then cooking the solution to obtain a mixed liquid A; adding ethanol into the mixed solution A, and then removing water to obtain enteromorpha pulp; adding sodium hypochlorite into the enteromorpha pulp to be bleached to obtain an enteromorpha regenerated cellulose fiber stock solution; adding dimethyl sulfoxide and N,N-dimethylformamide into the enteromorpha regenerated cellulose fiber stock solution to obtain an enteromorpha regenerated cellulose fiber spinning stock solution; and feeding the enteromorpha regenerated cellulose fiber spinning stock solution into a spinning device to extrude a spinning solution thick flow, then performing concentration and curing, and stretching and lengthening the thick flow under the action of a winding force to obtain the enteromorpha regenerated cellulose fibers. The preparation method disclosed by the invention is simple in process. The fineness of the nteromorpha regenerated cellulose fibers is less than or equal to 1dex, the dry strength is 37.5 cn, the wet strength is 26.8 cn, and the spinning condition is superior to that of cotton, polyesters, artificial cotton and the like.

Description

technical field [0001] The invention relates to a preparation method of regenerated cellulose fibers, in particular to a preparation method of Enteromorpha regenerated cellulose fibers. Background technique [0002] Due to the characteristics of softness, comfort, breathability and environmental protection of regenerated cellulose fiber, the clothes woven by it are favored by consumers all over the world. Regenerated cellulose fibers can be spun purely or blended with other fibers, and the fabrics are both woven and knitted. Blending regenerated cellulose fiber with wool can produce high-grade worsted woolen fabrics, and interweaving with polyester-cotton can produce all kinds of high-end clothing. It is suitable for a wide range of consumers and can be widely used. It has become a new favorite fiber for underwear. But do not utilize the method for the regenerated cellulose fiber that enteromorpha pulp is raw material production in the prior art then. Contents of the inve...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): D01F2/00D01D1/02D01D5/00D01D10/06
CPCD01F2/00D01D1/02D01D5/00D01D10/06
Inventor 迟桂丽
Owner 威海红印食品有限公司
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