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

Technology for removing laser printed or copied writings on paper surface

A technology of laser printing and laser printer, which is applied in the direction of chemical paint/ink remover, coating, etc., can solve problems such as unseen, and achieve the effect of easy procurement, wide application range, and simple and easy removal method

Active Publication Date: 2015-08-26
胡锴
View PDF3 Cites 0 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

At present, there is no domestic patent related to the removal of writing on the surface of paper after laser printing and copying

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
  • Technology for removing laser printed or copied writings on paper surface

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0028] Take the removal of the handwriting on the paper surface after laser printing as an example, where the laser printer used is a HP LaserJet1020 laser printer. The concrete process of this embodiment is:

[0029] Step 1: Prepare the solution: Use a graduated cylinder to measure 500mL of denture base resin (Type II) self-setting denture water and 10mL of hydrofluoric acid (analytical grade), and mix them in the container;

[0030] Step 2: Removal of handwriting: completely immerse the paper to be cleaned of handwriting in the prepared solution, and place the solution in an ultrasonic cleaner. Turn on the ultrasonic cleaner and after it has been operating for about 2 minutes, turn off the device and remove the paper from the solution. During this implementation process, due to the pungent odor of tooth dehydration and the volatility of hydrofluoric acid (analytical pure), it is best to carry out under ventilated conditions.

[0031] Step 3: Paper drying: Wash the cleared ...

Embodiment 2

[0033] Taking the removal of writing on the surface of paper after laser copying as an example, the laser copier used is a Canon iR2016J copier. The concrete process of this embodiment is:

[0034] Step 1: Prepare the solution: Use a graduated cylinder to measure 500mL of denture base resin (Type II) self-setting denture water and 10mL of hydrofluoric acid (analytical grade), and mix them in the container;

[0035] Step 2: Removal of handwriting: completely immerse the paper to be cleaned of handwriting in the prepared solution, and place the solution in an ultrasonic cleaner. Turn on the ultrasonic cleaner and after it has been operating for about 2 minutes, turn off the device and remove the paper from the solution. During this implementation process, due to the pungent odor of tooth dehydration and the volatility of hydrofluoric acid (analytical pure), it is best to carry out under ventilated conditions.

[0036] Step 3: Paper drying: Wash the cleared paper in tap water t...

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
diameteraaaaaaaaaa
Login to View More

Abstract

The invention discloses a technology for removing laser printed or copied writings on a paper surface, wherein the technology includes a removing solution and a removing method. The removing solution formula comprises hydrofluoric acid, a self-solidifying denture base polymer (also known as a dental base acrylic resin liquid) and water (tap water or distilled water) with the preparation ratio described in the description. The removing method comprises paper soaking. With utilization of the theory of 'similarity and intermiscibility', the laser printed or copied writings on the paper surface are dissolved by the prepared solution, so as to achieve the purpose of removal. Because the dissolution method almost has no damage to the paper, the paper having the writings removed can be recycled.

Description

technical field [0001] The invention relates to a method for removing laser printing or copying writing on the surface of paper, in particular to a method for removing laser printing or copying writing on the surface of paper by configuring a solution and using chemical dissolution. Background technique [0002] With the rapid popularization of computers and the Internet, and the acceleration of government, enterprise, and family information construction, laser printers and laser copiers are relatively cheap because of their high imaging quality, fast printing / copying speed, and large-scale printing / copying. advantages and has been widely used. At present, laser printers and laser copiers have become indispensable output devices for modern offices. [0003] At the same time, the surge of documents and materials caused by the increase of modern office activities, and the reprinting / copying of printing / copying errors caused by human factors have also caused a large amount of ...

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): C09D9/00
CPCC09D9/00
Inventor 胡锴张涛庄期凯
Owner 胡锴
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