Solvent-based inks comprising silver nanoparticles

A technology of silver nanoparticles and metal nanoparticles, which can be used in inks, coatings, fibrous fillers, etc., and can solve problems such as limiting the use of inks

Inactive Publication Date: 2012-09-19
XEROX CORP
View PDF8 Cites 15 Cited by
  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

Deposition of conductive metal lines exhibiting a coffee ring effect a

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
  • Solvent-based inks comprising silver nanoparticles
  • Solvent-based inks comprising silver nanoparticles
  • Solvent-based inks comprising silver nanoparticles

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0057] High throughput silver nanoparticles with a silver content of about 90 wt% were used in the examples. The examples were evaluated on the premise that if an ink formulation could sustain a variation of silver nanoparticles with a silver content of 90 wt%, the formulation should be reliable from batch to batch. Silver nanoparticles were prepared as previously disclosed in US Patent No. 7,494,608 (incorporated herein by reference) with a molar ratio of cetylamine to silver acetate of 5:1.

[0058] Three different inks were prepared using silver nanoparticles in different solvents or solvent mixtures. Inks were prepared by loading 50 wt% silver nanoparticles in a solvent or solvent mixture and shaking the silver nanoparticles overnight (approximately 16 hours) in the solvent or solvent mixture. The three solvents used for the three inks described were decahydronaphthalene, dicyclohexane, and a mixture of decahydronaphthalene / bicyclohexane (1:1 by weight) (from Sigma-Aldric...

Embodiment 2

[0063] To further improve the adhesion of printed silver lines, a terpene resin (from Arizona Chemicals (Jacksonville, Florida)) was added to the ink formulation at 1.2 wt%. The formulation of this ink is shown in Table 2.

[0064] Table 2

[0065] ink components

[0066] silver nanoparticles

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

High performing nanoparticle compositions suitable for printing, such as by inkjet printing, are provided herein. In particular, there is provided a conductive ink formulation comprising silver nanoparticles which has optimal performance, such as, reduced coffee ring effect, improved adhesion to substrates, and extended printhead de-cap time or latency time. The ink formulation comprises two or more solvents and a resin.

Description

technical field [0001] Disclosed herein, in various embodiments, are stable, high performance nanoparticle compositions suitable for printing, such as by inkjet printing. In particular, a conductive ink formulation comprising silver nanoparticles is provided that has optimal properties such as reduced coffee ring effect, improved adhesion to substrates, and extended print head drying time. Background technique [0002] The benefits of silver nanoparticle technology for printed electronics applications have recently been discovered. For example, ink formulations containing silver nanoparticles have demonstrated excellent printing results. However, the irreproducibility of printing performance remains a problem due to the batch-to-batch variation of silver nanoparticle powders, especially those prepared in large quantities. The main difference is the silver content. Specifically, for some batches of silver nanoparticles with a silver content of 90 wt% (which is the ratio o...

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): C09D11/02C09D11/10
CPCC09D7/001C09D5/24C09D11/10C09D11/36C09D11/322C09D11/02C09D7/1275C09D11/52C09D7/20C09D7/68C09C1/62C09C3/08C09D17/00
Inventor 吴贻良J·埃利亚胡柳平胡南星
Owner XEROX CORP
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
Try Eureka
PatSnap group products

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

© 2024 PatSnap. All rights reserved.Legal|Privacy policy|Modern Slavery Act Transparency Statement|Sitemap