Eureka AIR delivers breakthrough ideas for toughest innovation challenges, trusted by R&D personnel around the world.

Particles for electronic paper and manufacturing method thereof

A technology of electronic paper and particles, applied in chemical instruments and methods, preparation of microspheres, microcapsule preparations, etc., can solve problems such as unsatisfactory display stability

Inactive Publication Date: 2011-10-12
SK PLANET CO LTD
View PDF5 Cites 1 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

However, in-plane electrophoresis does not satisfy the display stability, so it is suggested to use microcapsule electrophoresis to solve the problem of in-plane electrophoresis

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
  • Particles for electronic paper and manufacturing method thereof
  • Particles for electronic paper and manufacturing method thereof
  • Particles for electronic paper and manufacturing method thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment approach 1

[0063] The electronic paper particle composition is dispersed using a solvent to obtain a sprayable composition. Here, the electronic paper particle composition includes a polymer resin, a charge control agent, and a pigment. A styrene-acrylate copolymer was used as a polymer resin, p-50 (a plasticizer having a positive charge) was added to the polymer resin at a content of 0.5%, and carbon black (black pigment) was used as a pigment.

[0064] The sprayable composition was sprayed through a two-fluid nozzle at a pressure of 3 MPa to produce droplets.

[0065] The droplets were dried by using air at 90° C. until the solvent content of the droplets became less than 1%, and electronic paper particles were obtained from the dried droplets.

Embodiment approach 2

[0067] A sprayable composition is obtained by dispersing the electronic paper particle composition using a solvent. Here, the electronic paper particle composition includes a polymer resin, a charge control agent, and a pigment. A polyester resin was used as a polymer resin, E-88 (Morflex 130) (a plasticizer having a negative charge sold by Orient Chemical in Japan) was added to the polymer resin at a content of 0.5%, and titanium dioxide (white pigment) was used as a pigment.

[0068] The sprayable composition was sprayed through a two-fluid nozzle at a pressure of 5 MPa to produce droplets.

[0069] The droplets were dried by using air at 80° C. until the solvent content of the droplets became less than 1%, and electronic paper particles were obtained from the dried droplets.

Embodiment approach 3

[0071] A sprayable composition is obtained by dispersing the electronic paper particle composition using a solvent. Here, the electronic paper particle composition includes a polymer resin, a charge control agent, and a pigment. Styrene-butadiene copolymer was used as the polymer resin, E-80 (Kesscoflex DBT) (plasticizer having a negative charge) was added to the polymer resin at a content of 0.5%, and titanium dioxide (white pigment) was used as the pigment .

[0072] The sprayable composition is sprayed through a two-fluid nozzle at 4 MPa to produce droplets.

[0073] The droplets were dried by using air at 100° C. until the solvent content of the droplets became less than 1%, and electronic paper particles were obtained from the dried droplets.

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 present invention relates to particles for electronic paper and to a manufacturing method thereof. The method for manufacturing particles for electronic paper, comprises the steps of: dispersing electronic paper particle compositions containing a polymer resin, a charge controlling agent, and a pigment by using a solvent to obtain sprayable compositions; spraying the sprayable compositions at a predetermined pressure to generate a liquid droplet; drying the liquid droplet; and obtaining particles for electronic paper from the dried liquid droplet. The method of the present invention can manufacture particles for electronic paper without using a stabilizer or an emulsifier, thereby improving charge stability of particles for electronic paper, and providing better environmental stability against contamination.

Description

technical field [0001] The present invention relates to particles for electronic paper and a manufacturing method thereof, more specifically, to a method for manufacturing particles for electronic paper and particles for electronic paper obtained according to the manufacturing method, the manufacturing method comprising the following Steps: dispersing an electronic paper particle composition comprising a polymer resin, a charge control agent, and a pigment using a solvent to obtain a sprayable composition; spraying the sprayable composition at a predetermined pressure to generate liquid droplets; Droplets to obtain particles for electronic paper. Background technique [0002] Electronic paper provides a feeling of paper and is used as a tool for displaying digital information such as characters or images processed on an electronic device. Electronic paper is also known as e-paper, paper-like display, e-book and e-paper. [0003] E-paper is a flexible liquid crystal display...

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
IPC IPC(8): G02F1/167
CPCB01J13/043C08J3/122C09C3/00G02F2001/1678G02F1/167
Inventor 尹尚帅全用夏韩上劝杨重根
Owner SK PLANET CO LTD
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
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