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

Non-wood type paper pulp

A non-wood and pulp technology, applied in non-woody plant/crop pulp, raw material separation, raw material pretreatment, etc., can solve the problems of stains, dust falling off, excessively white color, etc., to reduce temperature and steam pressure, improve Cellulose content, the effect of improving appearance characteristics

Active Publication Date: 2016-07-20
ANHUI GEYI CYCLIC ECONOMY IND PARK
View PDF5 Cites 12 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

In addition, in order to improve the hand feeling, various papermaking additives are added, such as talcum powder, which makes it too slippery or dust often falls off during use.
In addition, over-bleaching is performed to increase whiteness, making the color excessively white or stained
However, these methods cannot fundamentally solve the problems especially caused by herbal raw 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

Image

Smart Image Click on the blue labels to locate them in the text.
Viewing Examples
Smart Image
  • Non-wood type paper pulp
  • Non-wood type paper pulp
  • Non-wood type paper pulp

Examples

Experimental program
Comparison scheme
Effect test

Embodiment

[0054] Preparation of non-wood pulp 1:

[0055] 50 tons of wheat straw is used as raw material, and the raw material is pretreated by dust removal, cutting and crushing, and then sent to the cooking tank through the conveying equipment, and steamed with about 2.0MPa steam for about 5 minutes, after cooking, multi-stage cleaning with water is carried out, and passed Precipitation is used for solid-liquid separation, the upper liquid containing hemicellulose is separated, and the solid content of the lower layer after cooking is recovered.

[0056] Next, add 4.5% aqueous sodium hydroxide solution to the obtained cooked solids, cook at about 100°C for about 1 hour, precipitate after cooking, and recover the lower layer of solids, which is the cellulose product (this Invented non-wood pulp 1).

[0057] After analysis, the obtained cellulose product is about 13 tons, and its various indicators are: concentration 28.63%, K value 5.32, percussion degree SR 26.5°, wet weight 2.93g, w...

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
whitenessaaaaaaaaaa
Login to View More

Abstract

The invention provides non-wood type paper pulp, which is a cellulose product prepared through three-element separation of a herbaceous plant material. The cellulose product has the properties that the concentration of total weight cellulose based on the cellulose product is 25-30 percent; a K value is below 5.5; a beating degree is 20-30 degrees SR; the wet weight is 2-3.5g; the whiteness is below 44.5 degrees; the pH value is 7-9; the cellulose content based on total solid weight is 90-97 percent. Compared with products of the same kind, the non-wood type paper pulp has higher cellulose content; prepared paper has more superior appearance features. Moreover, no chemical agent is added and bleaching treatment can be omitted when the non-wood type paper pulp is used for making paper, so that residues are avoided, and the non-wood type paper pulp is harmless to human body during use.

Description

technical field [0001] The invention relates to the field of high-efficiency and comprehensive utilization of biomass resources, in particular to non-wood pulp which is mainly a cellulose product obtained by separating three elements. Background technique [0002] The raw material for papermaking is mainly plant fibers. Coniferous or broad-leaved wood is mainly used in economically developed countries, which account for more than 95% of the total consumption. There are relatively many types of plant fiber raw materials used in China, including (1) coniferous wood, such as larch, red pine, masson pine, Yunnan pine, sylvestris pine, etc.; (2) broad-leaved tree wood, such as poplar and birch (3) Herbaceous plants, such as reed, bamboo, miscanthus, wheat straw, straw, asparagus, sorghum stalk, bagasse, etc.; (4) Bast fibers, such as flax, jute, kenaf, sandalwood Bark, mulberry bark, cotton stalk bark, etc.; (5) Wool fibers, such as cotton, cotton linters, and cotton rags. Fro...

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): D21H11/12D21C3/26D21C3/02D21B1/02D21B1/06
CPCD21B1/02D21B1/06D21C3/02D21C3/26D21H11/12
Inventor 邹海平方贤祥刘志刚朱友
Owner ANHUI GEYI CYCLIC ECONOMY IND PARK
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