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

Arc discharge paper deacidification device and method

A technology of arc discharge and deacidification method, which is applied in the post-treatment of waste paper, etc. It can solve the problems of chemical reagent toxicity, blurred ink stains, fading, etc., and achieve the effect of avoiding alkaline hydrolysis, simple and easy to use, and easy to use

Inactive Publication Date: 2012-08-22
ZHEJIANG UNIV
View PDF4 Cites 26 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

A large number of modern paper cultural relics have discolored paper, blurred ink stains, greatly reduced mechanical strength or even broken due to acidification of paper. Although people have carried out a lot of research on deacidification of modern paper, so far no Ideal deacidification technology
The traditional solution deacidification method has its own defects that are difficult to overcome (such as: paper deformation, fading, toxicity of chemical reagents, low efficiency, etc.); while the traditional meteorological deacidification method is fast and has comprehensive effects of insecticide and disinfection. However, the acquisition of high vacuum conditions has very strict requirements on the equipment

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
  • Arc discharge paper deacidification device and method
  • Arc discharge paper deacidification device and method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] Take 50-year-old newspapers with a pH value of 5.174, cut them into rectangular sheets of 150mm×100mm, and use Ca(OH) with pH=12.896 2 The solution was treated as a deacidification agent, the carrier gas was Ar, the flow rate was 4L / min, and the voltage was 7kV, and arc discharge deacidification was performed. The time required for the treatment is 2 minutes, and the pH of the paper measured after the treatment is 6.831, which is significantly higher than before, and basically neutral.

Embodiment 2

[0034] Take the 57-year newspaper with a pH value of 5.603, use the deacidification agent with pH=11.092, the carrier gas is Ar, the flow rate is 4L / min, and the voltage is 5kV for arc discharge deacidification treatment. After the treatment, the pH of the paper was measured to be 6.540. The treated paper had no deformation or wrinkles after immersion in water, and basically had no change in appearance from that before treatment.

Embodiment 3

[0036] Take the 58-year-old newspaper with a pH value of 5.561, and use a deacidification agent with a pH value of 10.289 for treatment. Carrier gas is N 2 , the flow rate was 4L / min, the voltage was 7kV, and after arc discharge deacidification once, the pH of the paper was measured to be 6.232. Treated twice under the same conditions, the pH of the paper rose to 6.852.

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 invention discloses an arc discharge paper deacidification device and a method. The device comprises an air storage tank, a glass rotor flowmeter, a sealing liquid storage tank, an insulated ceramic reactor, an arc discharge gun, an insulated ceramic plate, a fixing frame, a first control motor, a second control motor and a computer. Under a normal temperature and normal pressure condition, the paper is processed by gaseous deacidification agent and arc discharge jet, so that the pH value of the paper can be increased to be neutral. The arc discharge paper deacidification device is simple and feasible, fast in processing speed, obvious in effect, and free of pollution to environment in the processing process; and the color and shape of the processed paper do not change, and the ink marks do not diffuse.

Description

technical field [0001] The invention relates to a device for deacidifying paper, in particular to a device and method for deacidifying acidified paper by arc discharge technology. Background technique [0002] At present, the paper acidification problem of a large number of modern paper cultural relics collected in my country is facing an increasingly serious situation. A large number of modern paper cultural relics have discolored paper, blurred ink stains, greatly reduced mechanical strength or even broken due to acidification of paper. Although people have carried out a lot of research on deacidification of modern paper, so far no Ideal deacidification technology. The traditional solution deacidification method has its own defects that are difficult to overcome (such as: paper deformation, fading, toxicity of chemical reagents, low efficiency, etc.); while the traditional meteorological deacidification method is fast and has comprehensive effects of insecticide and disin...

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): D21H25/18
Inventor 张溪文贺宇红奚三彩李青莲
Owner ZHEJIANG UNIV
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