公开(公告)号：US20200062981A1

公开(公告)日：2020-02-27

申请号：US16549570

申请日：2019-08-23

Applicant: Memjet Technology Limited

Inventor： Simon Fielder ,  Alison Chong ,  David Tyvoll ,  Tim Hudson ,  Roger Davey ,  Ellaine Munton

IPC: C09D11/38 ,  C09D11/322 ,  B41J2/14

Abstract: An aqueous-based inkjet ink for a thermal inkjet printhead includes: a pigment; 2 to 90 ppm ammonium ions; and an ink vehicle. The ink has a pH in the range of 8 to 9.5 and exhibits improved lifetime in thermal inkjet printheads with minimal loss of print quality.

公开(公告)号：US20190232700A1

公开(公告)日：2019-08-01

申请号：US16256981

申请日：2019-01-24

Applicant: MEMJET TECHNOLOGY LIMITED

Inventor： Zeying Ma ,  Ellaine Munton ,  Monica Romelczyk

IPC: B41M5/00 ,  C09D11/322 ,  C09D129/04 ,  C08K3/32 ,  C08K3/22 ,  C08K3/36

CPC classification number: B41M5/0017 ,  B41F5/24 ,  C08K3/22 ,  C08K3/32 ,  C08K3/36 ,  C08K2003/2227 ,  C08K2003/329 ,  C09D11/322 ,  C09D129/04

Abstract: A method of applying a coating composition to print media includes the steps of: coating a metal roller with the coating composition; and transferring the coating composition to the print media to provide a coated print media. The coating composition is an acidic aqueous-based composition containing: (i) a water-absorbing component selected from the group consisting of: hydrophilic polymers and hydrophilic metal oxides; and (ii) phosphoric acid.

公开(公告)号：US20240318021A1

公开(公告)日：2024-09-26

申请号：US18581620

申请日：2024-02-20

Applicant: MEMJET TECHNOLOGY LIMITED

Inventor： Ellaine Munton ,  Iain Blake

IPC: C09D11/328 ,  B41J2/14 ,  C09D11/033 ,  C09D11/106

CPC classification number: C09D11/328 ,  B41J2/14112 ,  C09D11/033 ,  C09D11/106

Abstract: An inkjet ink includes an aqueous-based ink vehicle and 5 to 250 ppm of a polyvinyl alcohol. The ink is useful for improving the lifetime of inkjet printheads, especially printheads with inkjet nozzle devices having resistive heater elements susceptible to failure by corrosion.

公开(公告)号：US11951736B2

公开(公告)日：2024-04-09

申请号：US17847048

申请日：2022-06-22

Applicant: Memjet Technology Limited

Inventor： Michael Hudson ,  David Burke ,  Qing Chen ,  Graeme Lowe ,  Jason Mark Thelander ,  Ellaine Munton

IPC: B41J2/045 ,  B41J2/145 ,  B41J2/175

CPC classification number: B41J2/04531 ,  B41J2/145 ,  B41J2/175

Abstract: An inkjet printing system includes: (a) an inkjet printhead having a rigid elongate manifold with first and second parallel ink supply channels extending along a length of the manifold between respective ink ports positioned at opposite ends thereof; and a plurality of printhead chips mounted to a lower surface of the manifold, the ink supply channels supplying ink to the printhead chips via ink outlets defined in the lower surface. One end of the manifold has a first ink inlet port for the first ink supply channel and an ink outlet port for the second ink supply channel. The other end of the manifold has a first ink outlet port for the first ink supply channel and a second ink inlet port for the second ink supply channel. An ink delivery system is configured to flow ink along the first and second channels in opposite directions.

公开(公告)号：US11441044B2

公开(公告)日：2022-09-13

申请号：US16549570

申请日：2019-08-23

Applicant: Memjet Technology Limited

Inventor： Simon Fielder ,  Alison Chong ,  David Tyvoll ,  Tim Hudson ,  Roger Davey ,  Ellaine Munton

IPC: C09D11/38 ,  B41J2/14 ,  C09D11/322

Abstract: An aqueous-based inkjet ink for a thermal inkjet printhead includes: a pigment; 2 to 90 ppm ammonium ions; and an ink vehicle. The ink has a pH in the range of 8 to 9.5 and exhibits improved lifetime in thermal inkjet printheads with minimal loss of print quality.