Compositions compatible with jet printing and methods therefor

Patent metadata

Field	Value
Publication number	US-9701120-B2
Application number	US-201414552140-A
Country	US
Kind code	B2
Filing date	Nov 24, 2014
Priority date	Aug 20, 2007
Publication date	Jul 11, 2017
Grant date	Jul 11, 2017

Abstract

A device for use in a high speed variable printing comprises a housing having at least one surface, a series of ejection nozzles mounted on the one surface, and a source of a gating agent communicating with the nozzles. The gating agent comprises from about 0.05 to about 10% by weight of a blocking agent, up to about 15% by weight of a surface tension modifying compound, up to about 8% by weight of viscosity modifier such that the gating agent has a viscosity within the range of about 1 to 14 mPa s, and the balance of the gating agent comprises a solvent. The gating agent has a dynamic surface tension of less than about 60 dynes/cm.

First claim

We claim:

1. A device for use in a high speed variable printing comprising:
a housing having at least one surface;
a series of ejection nozzles mounted on the one surface, each ejection nozzle capable of ejecting a drop on demand; and
a source of a gating agent communicating with the nozzles, the gating agent comprising from about 5% to about 20% by weight of a nanoparticle;
wherein a printing agent is applied to a further surface, wherein the gating agent is ejected in a pattern on at least one of a final print medium, the printing agent applied to the further surface;
wherein the printing agent is transferred from the further surface to the final print medium; and
wherein the nanoparticle is functionalized using a compound comprising an amine moiety and one of an ethoxylate, a propoxylate, or an ethoxylate/propoxylate moeity.

2. The device of claim 1 , wherein the nanoparticle is silica based.

3. The device of claim 1 , wherein the nanoparticle comprises one of the group consisting of alumina, zirconia, zinc oxide, colloidal ceria, and antimony oxide.

4. The device of claim 1 , wherein the nanoparticle is a spherical particle between about 3 and about 100 nanometers wide.

5. The device of claim 1 , wherein the nanoparticle is an oblong particle between about 3 and about 50 nanometers wide and between about 50 and about 150 nanometers long.

6. The device of claim 1 , wherein the ionic molecule includes sodium or another alkali in a weight percent less than about 1%.

7. The device of claim 1 , wherein the nanoparticle is functionalized using an amine ethoxylate compound.

8. The device of claim 1 , wherein the nanoparticle is functionalized using a polyether amine.

9. The device of claim 8 , wherein the functionalized nanoparticle comprises
a number of ethoxy groups and a number of propoxy groups determining
a hydrophobic-lipophilic balance within a range of about 2 to about 18.

10. The device of claim 1 , wherein the gating agent further comprises a viscosity modifying agent, the gating agent having a viscosity within the range of 1 to 14 centipoise.

11. The device of claim 1 , wherein the gating agent having a viscosity within the range of 2 to 8 centipoise.

12. The device of claim 1 , wherein the gating agent further comprises a surface tension modifying compound, the gating agent having a surface tension of less than about 40 dynes/cm.

13. The device of claim 1 , wherein the gating agent further comprises a surface tension modifying compound, the gating agent having a surface tension of less than about 35 dynes/cm.

Assignees

• Donnelley & Sons Co

Inventors

• Hook Kevin J
• Cyman Jr Theodore F
• Pilon Lawrence
• Zaloom Jeffrey

Classifications

• B41J3/546

  Combination of different types, e.g. using a thermal transfer head and an inkjet print head · CPC title

• B41F23/00

  Devices for treating the surfaces of sheets, webs, or other articles in connection with printing · CPC title

• C08K5/3415

  Five-membered rings · CPC title

• B41J11/0015

  for treating before, during or after printing or for uniform coating or laminating the copy material before or after printing (selective coating B41J2/2114) · CPC title

• B41J2/0057

  where an intermediate transfer member receives the ink before transferring it on the printing material · CPC title