Looking for breakthrough ideas for innovation challenges? Try Patsnap Eureka!

Corncob bark pulp for chemical fiber and preparation method thereof

A corncob and hull pulp technology, applied in the field of chemical fiber pulp, can solve the shortage of viscose fiber raw materials and other problems, achieve excellent quality indicators, high pulp yield, and alleviate the shortage

Active Publication Date: 2011-10-19
潍坊欣龙生物材料有限公司
View PDF3 Cites 6 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0005] The technical problem to be solved by the present invention is to provide a kind of corncob pulp for chemical fiber and its preparation method in view of the above problems, adopting this method can use corncob as raw material to produce corncob pulp, and corncob pulp The quality is good, and it also solves the problem of the current shortage of viscose fiber raw materials, and can make full use of agricultural waste, reducing environmental pollution and excessive dependence on petroleum resources

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

[0023] Example 1, a preparation method of corn cob pulp for chemical fiber, using corn cob as raw material, after pretreatment, cooking, washing, beating, pre-selection and desanding, concentration, chloralkaliization, bleaching, acid treatment , washing, post-selection desanding, concentration, and copying process to prepare corn cob pulp, wherein,

[0024] The pretreatment process is as follows: cutting the corn cob into 3-5 cm long sections, and then cleaning and removing impurities. The quality index of the corn cob after the removal of impurities is 9.5% of sulfuric acid insoluble matter, 3.00% of ash content, and 300mg / kg of iron;

[0025] The cooking process is as follows: put the pretreated corn cobs in a steaming ball, add 10% sodium hydroxide relative to the absolute dry corn cob pulp, and 0.01% relative to the absolute dry corn cob pulp the cooking aid green oxygen With 0.8% of the cooking aid sodium dodecyl sulfonate relative to the dry pulp mass, the degree of sul...

Embodiment 2

[0033] Example 2, a preparation method of corn cob pulp for chemical fiber, using corn cob as raw material, after pretreatment, cooking, washing, beating, pre-selection and desanding, concentration, chloralkaliization, bleaching, acid treatment , washing, post-selection desanding, concentration, and copying process to prepare corn cob pulp, wherein,

[0034] The pretreatment process is: cutting the corn cob into 3-4cm long sections, and then cleaning and removing impurities. After the impurity removal, the sulfuric acid insoluble matter in the corn cob is ≤8.5%, the ash content is ≤2.80%, and the iron content is ≤280mg / kg;

[0035] The cooking process is as follows: put the pretreated corn cobs in a steaming ball, add 15% of sodium hydroxide relative to the absolute dry pulp mass, 0.05% of the auxiliary green oxygen relative to the absolute dry pulp mass, and 1.0% of the auxiliary agent X Sodium dialkyl sulfonate, the degree of sulfidation of the cooking liquid is 20%, and the...

Embodiment 3

[0043] Example 3, a preparation method of corn cob pulp for chemical fiber, using corn cob as raw material, after pretreatment, cooking, washing, beating, pre-selection and desanding, concentration, chloralkaliization, bleaching, acid treatment , washing, post-selection desanding, concentration, and copying process to prepare corn cob pulp, wherein,

[0044] The pretreatment process is as follows: cut the corn cob into 5 cm long sections, and then wash and remove impurities. After removing impurities, the sulfuric acid insoluble matter in the corn cob is 8.7%, the ash content is 2.85%, and the iron content is 285mg / kg;

[0045] The cooking process is as follows: put the pretreated corn cobs in a steaming ball, add 20% of sodium hydroxide relative to the absolute dry pulp mass, 0.5% of the auxiliary green oxygen relative to the absolute dry pulp mass, and 1.5% of the auxiliary agent ten Sodium dialkyl sulfonate, the degree of sulfidation of the cooking liquid is 30%, and the li...

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
viscosityaaaaaaaaaa
viscosityaaaaaaaaaa
viscosityaaaaaaaaaa
Login to View More

Abstract

The invention relates to corncob bark pulp for chemical fiber, which is prepared and formed from corncob bark by the working procedures of pretreatment, stewing, washing, pulping, pre-selection desanding, concentration, chlorine alkalization, bleaching, acid treatment, scouring, post-selection desanding, concentration and paper manufacturing with pulp; in the corncob bark pulp, the content of alpha-cellulose is larger than or equal to 90%, the content of ash content is smaller than or equal to 0.10%, and the content of iron content is smaller than or equal to 25 mg / kg; the stewing is performed by using sulfate process, and the stewing condition manner and bleaching conditions are improved; and the quality indicator of the corncob bark pulp obtained through the method is more prior to thatof the pulp for the conventional viscose staple fiber, and the pulp yield is high. The invention achieves the purpose of producing the pulp for viscose fiber by using agricultural waste of the corncob bark pulp, and eases the problem of the shortage of materials of the viscose fiber.

Description

technical field [0001] The invention relates to a pulp for chemical fiber, in particular to a pulp for chemical fiber produced by using corn cobs and a preparation method thereof. Background technique [0002] With the improvement of people's living standards, people gradually realize the advantages of natural environmental protection materials, especially the demand for clothing natural environmental protection materials is increasing, and viscose fiber occupies a considerable proportion. At present, the main raw materials that people use to produce pulp for viscose fiber are hardwood, coniferous wood or cotton linters. The demand for short staples has greatly increased, resulting in unprecedented shortage of raw materials used to produce pulp for viscose fibers. [0003] In 2009, the production capacity of regenerated cellulose fiber in the world reached 3.796 million tons, and more than 3.87 million tons of pulp was needed. At present, only more than 3 million tons of wo...

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): D21C3/02D21C3/22D21C9/12D01F2/06
Inventor 曹其贵刘建华姜明亮郝连庆秦翠梅王东卢海蛟
Owner 潍坊欣龙生物材料有限公司
Who we serve
  • R&D Engineer
  • R&D Manager
  • IP Professional
Why Patsnap Eureka
  • Industry Leading Data Capabilities
  • Powerful AI technology
  • Patent DNA Extraction
Social media
Patsnap Eureka Blog
Learn More
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap|About US| Contact US: help@patsnap.com