Method for fabricating fiber of regenerative bamboo cellulose

A technology of bamboo cellulose and manufacturing method, which is applied in the direction of artificial filament in cellulose solution, etc., can solve the problems of long production process and high cost of raw material processing, and achieve the improvement of production efficiency, improvement of fiber dyeing performance and anti-fibrillation Excellent performance and performance

Inactive Publication Date: 2006-04-19
DONGHUA UNIV
View PDF2 Cites 26 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0009] From the above two types of patents, the entire production process is long, and the...

Method used

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View more

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0026] Embodiment 1: 10Kg of sheet-like commercially available paper-making grade bamboo pulp and 100Kg of water are dropped into a 200-liter high-pressure vessel, soaked, stirred and mixed for 4 hours, boiled at a temperature of 160° C. for 3 hours, then extruded and dehydrated, Obtain 20Kg of water-containing bamboo cellulose, wherein the weight ratio of bamboo cellulose to water is 1:1.

[0027] 200Kg concentration by weight is 50% N-methylmorpholine oxide aqueous solution in a vacuum of -9.0 × 10 4 Distill and concentrate to 120Kg under reduced pressure of Pa, so that the weight percent concentration of the above-mentioned N-methylmorpholine oxide aqueous solution is 83.3%.

[0028] Add 20Kg of the above-mentioned water-containing bamboo cellulose and 120Kg of N-methylmorpholine oxide aqueous solution with a concentration of 83.3% by weight into a 300-liter dissolving kettle with a stirring device respectively, stir and mix evenly at 85°C, and then gradually heat up to 10...

Embodiment 2

[0030] Embodiment 2: the commercially available papermaking grade bamboo pulp 10Kg of flake and water 90Kg drop in the high-pressure cooker of 200 liters, then add the sulfuric acid solution that the weight percent concentration of 0.2Kg is 90%, impregnate, mix after 4 hours , cooking at a temperature of 140°C for 4 hours, after cooking, neutralize with sodium hydroxide to a pH value of 7.5, wash and extrude to obtain 20Kg of water-containing bamboo cellulose, wherein the weight ratio of bamboo cellulose to water is 1:1.

[0031] 186Kg weight percent concentration is 50% N-methylmorpholine oxide aqueous solution at -9.0 * 10 4 Distill and concentrate to 110Kg under the reduced pressure condition of Pa, make the above-mentioned N-methylmorpholine oxide aqueous solution weight percentage concentration be 84.5%.

[0032] Add 20Kg of the above-mentioned water-containing bamboo cellulose and 110Kg of N-methylmorpholine oxide aqueous solution with a concentration of 84.5% by weight i...

Embodiment 3

[0034] Embodiment 3: drop 10Kg of sheet-like commercially available paper-making grade bamboo pulp and 90Kg of water into a 200-liter stirred tank, after soaking and mixing for 6 hours, adjust the pH value to 5 with acetic acid, add 100g β-1,4 glucose Mixed enzymes of exoglycanase and endo-β-1,4 glucanase, the weight ratio of the two enzymes is 10:90, kept at a temperature of 50°C for 1 hour, and then heated to 90°C to make the fibers Sulfase is inactivated, and after the pH value of the mixed system is adjusted to 7.5 with sodium carbonate, the hydrous bamboo cellulose of 20Kg is obtained through washing, extrusion and dehydration, wherein the weight ratio of bamboo cellulose and water is 1:1.

[0035] 186Kg weight percent concentration is 50% N-methylmorpholine oxide aqueous solution at -9.0 * 10 4 Distill and concentrate to 110Kg under the reduced pressure condition of Pa, make the above-mentioned N-methylmorpholine oxide aqueous solution weight percentage concentration be ...

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

PUM

No PUM Login to view more

Abstract

The present invention relates to a production method of solvent spun cellulose fiber in chemical fiber industry. It is characterized by that said production method includes the following steps: using commercial papermaking-grade bamboo pulp as raw material, making it undergo the pretreatment processes of hydrolysis, acidolysis or enzymolysis, then mixing it with N-methyl morpholine oxide aqueous solution according to a certain weight ratio, reducing pressure and dehydrating at 70-15 deg.C to obtain spinning solution; pressurizing said spinning solution, filtering said spinning solution by two prefilters, jetting by spinning nozzle, coagulating and forming in aqueous solution of N-methyl morpholine oxide, rinsing and adopting correspondent conventional process to prepare filament and staple with various specifications.

Description

technical field [0001] The invention relates to a method for manufacturing cellulose fiber by solvent method in the chemical fiber manufacturing industry, in particular to a technology for directly producing regenerated bamboo cellulose fiber by using paper-making grade bamboo pulp. Background technique [0002] my country is a country where bamboo grows very commonly and is rich in bamboo resources. It is known as the "Kingdom of Bamboo". The area of ​​bamboo forest is about 5 million hectares, accounting for 30% of the world's total. It can be used as a material in one year, so it has the function of sustainable development; in addition, bamboo cellulose fiber made of bamboo not only has the properties of cotton and wood-type cellulose fibers, but also has some unique properties, such as cool, natural Bacteriostasis, fragrance and negative ion effects, etc. Therefore, bamboo is one of the raw materials of novel cellulose fibers worthy of popularization and application. [...

Claims

the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to view more

Application Information

Patent Timeline
no application Login to view more
IPC IPC(8): D01F2/02
Inventor 杨革生邵惠丽胡学超冯坤
Owner DONGHUA UNIV
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Try Eureka
PatSnap group products

Browse by: Latest US Patents, China's latest patents, Technical Efficacy Thesaurus, Application Domain, Technology Topic.

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap