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：US10457057B2

公开(公告)日：2019-10-29

申请号：US16110611

申请日：2018-08-23

Applicant: Memjet Technology Limited

Inventor： Simon Fielder ,  Ming Chen

IPC: B41J2/175 ,  B41J2/165

Abstract: A method of preparing a printhead for dry shipment. The method includes the steps of: treating an ink pathway in the printhead with an aqueous treatment fluid containing at least one ink-soluble solvent having a boiling point of at least 150 degrees; and drying the printhead so as to leave a film of liquid solvent on a surface of the ink pathway. The film of liquid solvent solubilizes organic materials leached or outgassed from the printhead during dry storage or shipment.

公开(公告)号：US20190061358A1

公开(公告)日：2019-02-28

申请号：US16110611

申请日：2018-08-23

Applicant: Memjet Technology Limited

Inventor： Simon Fielder ,  Ming Chen

IPC: B41J2/175 ,  B41J2/165

CPC classification number: B41J2/1752 ,  B41J2/1652 ,  B41J2/16535 ,  B41J2/16585 ,  B41J2/17513 ,  B41J2/17533

Abstract: A method of preparing a printhead for dry shipment. The method includes the steps of: treating an ink pathway in the printhead with an aqueous treatment fluid containing at least one ink-soluble solvent having a boiling point of at least 150 degrees; and drying the printhead so as to leave a film of liquid solvent on a surface of the ink pathway. The film of liquid solvent solubilizes organic materials leached or outgassed from the printhead during dry storage or shipment.

公开(公告)号：US20180370223A1

公开(公告)日：2018-12-27

申请号：US16051319

申请日：2018-07-31

Applicant: Memjet Technology Limited

Inventor： Jason Thelander ,  David Burke ,  Andrew Thomas ,  Simon Fielder ,  Michele Gimona ,  Albert Woffenden

IPC: B41J2/045 ,  B41J2/19 ,  B41J2/14 ,  B41J2/175 ,  B41J2/16 ,  B41J25/34

CPC classification number: B41J2/04528 ,  B41J2/14 ,  B41J2/1433 ,  B41J2/155 ,  B41J2/1635 ,  B41J2/1637 ,  B41J2/1642 ,  B41J2/175 ,  B41J2/19 ,  B41J25/34 ,  B41J29/02 ,  B41J29/13 ,  B41J2002/14362 ,  B41J2002/14419 ,  B41J2002/14491 ,  B41J2202/19 ,  B41J2202/20

Abstract: An inkjet printhead includes: a rigid elongate manifold having ink supply channels extending along its length and a plurality of ink outlets defined therein; a shim attached to the manifold, the shim having a plurality of shim apertures for receiving ink from the ink outlets; and a plurality of printhead chips adhesively bonded directly to the shim, each printhead chip receiving ink from one or more of the ink outlets. The shim is formed of a metal alloy having a CTE of 5 ppm/° C. or less and includes an adhesion-promoting surface film layer.

公开(公告)号：US09546292B2

公开(公告)日：2017-01-17

申请号：US14877478

申请日：2015-10-07

Applicant: Memjet Technology Limited

Inventor： David Tyvoll ,  Simon Fielder ,  Michele Gimona ,  Christopher Barton ,  Jognandan Prashar ,  Michele Shepard ,  Iain Blake ,  Richard Myors ,  Luke Grassy

IPC: C09D11/38 ,  C08K5/06 ,  B41J2/01 ,  C09C1/00 ,  B41J2/505 ,  B01D69/02 ,  B41M5/52 ,  C09D5/08 ,  B41J2/21

CPC classification number: C09D11/38 ,  B01D69/02 ,  B41J2/01 ,  B41J2/165 ,  B41J2/2107 ,  B41J2/5052 ,  B41M5/5218 ,  C08K5/06 ,  C09C1/0036 ,  C09C1/0063 ,  C09C1/10 ,  C09D5/082 ,  C09D7/63

Abstract: An inkjet ink for improving printhead lifetimes includes: an aqueous-based ink vehicle; a colorant; an anti-kogation additive; and an anti-corrosion additive having at least one acetylenic group, the acetylenic group being absent any tertiary or quaternary α-carbon atoms.

Abstract translation: 一种用于改善打印头寿命的喷墨油墨包括：水性油墨载体; 着色剂 抗焦化添加剂; 和具有至少一个炔属基团的抗腐蚀添加剂，炔属基团不存在任何叔或季α-碳原子。

公开(公告)号：US09777176B2

公开(公告)日：2017-10-03

申请号：US15233531

申请日：2016-08-10

Applicant: Memjet Technology Limited

Inventor： Simon Fielder ,  Michele Gimona ,  Christopher Barton

IPC: C09D11/328 ,  C09D11/38 ,  C08K5/23 ,  C08K5/06 ,  B41J2/14

CPC classification number: C09D11/38 ,  B41J2/14016 ,  C08K5/06 ,  C08K5/235 ,  C09D11/328

Abstract: A method of printing from an inkjet nozzle device having a thermal actuator. The method includes the steps of supplying a fluid to the inkjet nozzle device, the fluid comprising an acetylenic compound; and repeatedly actuating the thermal actuator so as to eject fluid droplets from a nozzle opening of the inkjet nozzle device. The acetylenic compound is present in an amount sufficient to increase the lifetime of the inkjet nozzle device.

公开(公告)号：US20160137861A1

公开(公告)日：2016-05-19

申请号：US14877478

申请日：2015-10-07

Applicant: Memjet Technology Limited

Inventor： David Tyvoll ,  Simon Fielder ,  Michele Gimona ,  Christopher Barton ,  Jognandan Prashar ,  Michele Shepard ,  Iain Blake ,  Richard Myors ,  Luke Grassy

IPC: C09D11/38 ,  C08K5/06

CPC classification number: C09D11/38 ,  B01D69/02 ,  B41J2/01 ,  B41J2/165 ,  B41J2/2107 ,  B41J2/5052 ,  B41M5/5218 ,  C08K5/06 ,  C09C1/0036 ,  C09C1/0063 ,  C09C1/10 ,  C09D5/082 ,  C09D7/63

Abstract: An inkjet ink for improving printhead lifetimes includes: an aqueous-based ink vehicle; a colorant; an anti-kogation additive; and an anti-corrosion additive having at least one acetylenic group, the acetylenic group being absent any tertiary or quaternary α-carbon atoms.

Abstract translation: 一种用于改善打印头寿命的喷墨油墨包括：水性油墨载体; 着色剂 抗焦化添加剂; 和具有至少一个炔属基团的抗腐蚀添加剂，炔属基团不存在任何叔或季α-碳原子。

公开(公告)号：US20250101242A1

公开(公告)日：2025-03-27

申请号：US18814824

申请日：2024-08-26

Applicant: MEMJET TECHNOLOGY LIMITED

Inventor： Simon Fielder ,  Ivan Johan

IPC: C09D11/322 ,  C09D11/033 ,  C09D11/037 ,  C09D11/38

Abstract: A white inkjet ink includes: an aqueous-based ink vehicle and white pigment particles dispersed in the ink vehicle. The pigment particles are core-shell particles having a core comprised of polystyrene and a shell comprised of titania. Stable formulations producing good image quality include a first nonionic acetylenic surfactant having an HLB value in the range of 7 to 9 and a second nonionic acetylenic surfactant having an HLB value in the range of 12 to 14.

公开(公告)号：US11919074B2

公开(公告)日：2024-03-05

申请号：US17713568

申请日：2022-04-05

Applicant: Memjet Technology Limited

Inventor： Simon Fielder

IPC: B22F10/14 ,  B22F1/145 ,  B22F12/40 ,  B22F12/50 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/00

CPC classification number: B22F10/14 ,  B22F1/145 ,  B22F12/40 ,  B22F12/50 ,  B22F2998/10 ,  B22F2999/00 ,  B33Y10/00 ,  B33Y30/00 ,  B33Y70/00

Abstract: An additive manufacturing method using an inkjet printhead supplied with a binder fluid, said method comprising the steps of: (a) providing a layer of powdered build material including a monomer; (b) selectively jetting the binder fluid onto predetermined regions of the layer of powdered build material, the binder fluid comprising a catalyst; (c) optionally exposing the layer of powdered build material to an energy source to initiate polymerization of the monomer; and (d) optionally repeating steps (a) to (c).

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.