Method for producing and manufacturing lyocell bamboo fibers

A technology of lyocell bamboo and its manufacturing method, which is applied in the direction of artificial filament in cellulose solution, wet spinning method, spinning solution preparation, etc., can solve the problems of less production technology, and achieve filling the gap in the industry and good air permeability , the effect of high breadth and availability

Pending Publication Date: 2021-10-22
山东鸿泰鼎新材料科技有限公司
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] Lyocell fiber production technology is currently a relatively mature solvent-based regenerated cellulose fiber industrial production technology. Many domestic and foreign companies, universities and research institutes have related research, but relatively few can truly master the complete production technology of lyocell fiber. , as a foreign enterprise that has monopolized the production technology of lyocell fiber for a long time, it has mastered a series of the most advanced lyocell fiber related technologies such as lyocell fiber production equipment and production technology, breaking through the blockade of foreign enterprises on the production process and equipment , developed a set of mature and reliable lyocell fiber production process and equipment, which will effectively promote the development of new fiber materials

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

[0050] Embodiment 1: a kind of manufacturing method of lyocell bamboo fiber, raw material is Sichuan bamboo pulp, quantity 40kg (absolute dry), and absolute dry is the pure dry material without water, and absolute dry is relative to air-dried, and normal air-dried material is 10 kg. % moisture content, Sichuan bamboo pulp 40kg, equivalent calculation has removed the moisture content.

[0051] The quality indicators are: DP512, 94.8% methyl fiber, 0.18% ash, 0.14% resin, 85% whiteness, 33mm small dust 2 / kg, pentose 4.5%, iron 20mg / kg, copper 2mg / kg, calcium 400mg / kg, magnesium 60mg / kg.

[0052]Fiber is a substance that is found throughout nature. In plant fibers, cellulose is the substance that determines the characteristics of the fiber. Cellulose is a carbohydrate that also contains multiple sugar units. Its chemical formula is (C6H10O5)n, where n is The number of repeated sugar units or the degree of polymerization (DP), and the N value vary depending on the various source...

Embodiment 2

[0103] Embodiment 2: a kind of manufacturing method of lyocell bamboo fiber, raw material is Sichuan bamboo pulp, quantity 40kg (dry), quality index is: DP532, armor fiber 94.5%, ash content 0.17%, resin 0.15%, whiteness 83 %, small dust 30mm 2 / kg, pentose polysaccharide 4.3%, iron 19mg / kg, copper 2mg / kg, calcium 380mg / kg, magnesium 55mg / kg; absolute dryness is pure dry material without water, absolute dryness is relative to air-drying, normal air-dried material is 10 % of moisture content, the equivalent calculation has removed the moisture content.

[0104] A method for producing lyocell bamboo fiber, comprising post-processing steps such as pulverizing, mixing with NMMO to make porridge, dissolving the porridge to make glue, spinning, washing, cutting, oiling, and drying. in:

[0105] (1) Pulverizing step: the flaky bamboo pulp is manually torn into large pieces, then pulverized twice with a coarse pulverizer and a fine pulverizer, and the bulk density of the bamboo pulp...

Embodiment 3

[0144] Embodiment 3: a kind of manufacturing method of lyocell bamboo fiber, raw material is Sichuan bamboo pulp, quantity 40kg (dry), quality index is: DP565, first fiber 94.3%, ash content 0.16%, resin 0.16%, whiteness 81%, small dust 32mm 2 / kg, pentose polysaccharide 4.1%, iron 18mg / kg, copper 2mg / kg, calcium 280mg / kg, magnesium 51mg / kg; absolute dryness is pure dry material without water, absolute dryness is relative to air-drying, normal air-drying material is 10 % of moisture content, the equivalent calculation has removed the moisture content.

[0145] A method for producing lyocell bamboo fiber, comprising post-processing steps such as pulverizing, mixing with NMMO to make porridge, dissolving the porridge to make glue, spinning, washing, cutting, oiling, and drying. in:

[0146] (1) Pulverizing step: the flaky bamboo pulp is manually torn into large pieces, then pulverized twice with a coarse pulverizer and a fine pulverizer, and the bulk density of the bamboo pulp...

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

PropertyMeasurementUnit
elongation at breakaaaaaaaaaa
dry strength coefficient of variationaaaaaaaaaa
elongation at breakaaaaaaaaaa
Login to view more

Abstract

The invention discloses a method for producing and manufacturing lyocell bamboo fibers, and belongs to the technical field of production of lyocell fibers. The method comprises the following steps of crushing (coarse crushing and fine crushing), adding NMMO, mixing to prepare slurry, dissolving to prepare a glue solution, conveying a material to a spinning machine by a discharging pump, washing, cutting, oiling and drying. The product made of the bamboo fiber can be naturally degraded in soil, has no pollution to the environment after being decomposed, and is a natural, green and environment-friendly textile raw material. Meanwhile, the bamboo fibers have the characteristics of good air permeability, instant water absorption, relatively strong wear resistance, good dyeing property and the like and have natural antibacterial, bacteriostatic, acarus-killing, deodorization and ultraviolet-resistant functions, a method for manufacturing the lyocell fibers by taking the bamboo wood as the raw material is developed, the raw material range of the lyocell fibers can be expanded, the industry blank can be filled up, and the method is of great significance.

Description

technical field [0001] The invention relates to a method for producing lyocell bamboo fiber and belongs to the technical field of lyocell fiber production. Background technique [0002] Cellulose is the main component of plant cell walls and can be derived from trees, cotton, hemp and other plants. It is widely distributed in nature and is inexhaustible. Generally speaking, most organic substances containing hydroxyl groups are easily soluble in water, such as alcohol, glucose, etc., but cellulose is insoluble in water and most organic solvents. This is because the molecular weight of cellulose is generally large, ranging from several hundred to tens of thousands, and it is easy to form intramolecular and intermolecular hydrogen bonds. This force will cover a part of the affinity of hydroxyl groups for water, making cellulose insoluble. Soluble in water or insoluble in common organic solvents. [0003] Due to the depletion of petroleum resources and the influence of factor...

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
Patent Type & Authority Applications(China)
IPC IPC(8): D01F2/02D01D1/02D01D5/06
CPCD01F2/02D01D1/02D01D5/06
Inventor 王培荣
Owner 山东鸿泰鼎新材料科技有限公司
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