公开(公告)号：WO2006099609A3

公开(公告)日：2007-04-05

申请号：PCT/US2006009988

申请日：2006-03-15

Applicant: HEWLETT PACKARD DEVELOPMENT CO ,  VASUDEVAN SUNDAR

Inventor： VASUDEVAN SUNDAR

IPC: C09D11/00 ,  C08K3/38 ,  C08K5/00

CPC classification number: C09D11/40 ,  C08K3/38 ,  C08K5/17 ,  C08K5/19 ,  C09D11/38

Abstract: Ink formulations, ink jet sets, methods of stabilizing an ink formulation, printer systems, and methods thereof, are disclosed. One exemplary ink formulation, among others, includes a pigment and a borate buffer. The ink formulation has an ink stability characteristic of a pH drift of less than 1.0 pH over a one year time period. The ink formulation has a size stability characteristic of a diameter of the pigment increasing less than 20% over a one year time period.

Abstract translation: 公开了油墨配方，喷墨组，稳定油墨配方的方法，打印机系统及其方法。 一个示例性的油墨配方，其中包括颜料和硼酸盐缓冲剂。 油墨配方在一年的时间内具有小于1.0 pH的pH漂移的油墨稳定性特征。 油墨配方具有在一年时间内颜料直径增加小于20％的尺寸稳定性特征。

公开(公告)号：EP2173825A4

公开(公告)日：2013-11-27

申请号：EP08843432

申请日：2008-07-28

Applicant: HEWLETT PACKARD DEVELOPMENT CO

Inventor： RENGASWAMY SUKANYA ,  BLAIR ROBERT J ,  VASUDEVAN SUNDAR ,  WICKRAMANAYAKE PALITHA

IPC: C09D11/00

CPC classification number: C09D11/30 ,  C09D11/106 ,  C09D11/324

公开(公告)号：EP2109540A4

公开(公告)日：2012-08-01

申请号：EP08713936

申请日：2008-01-23

Applicant: HEWLETT PACKARD DEVELOPMENT CO

Inventor： VASUDEVAN SUNDAR

IPC: B41J2/01 ,  C09D11/00

CPC classification number: C09D11/40 ,  C09D11/322

公开(公告)号：EP2794780A4

公开(公告)日：2015-07-29

申请号：EP11877906

申请日：2011-12-22

Applicant: HEWLETT PACKARD DEVELOPMENT CO

Inventor： VASUDEVAN SUNDAR ,  MCMANUS RICHARD J ,  WICKRAMANAYAKE PALITHA

IPC: C09D11/00 ,  B41J2/175 ,  C09D11/02 ,  C09D11/38

CPC classification number: C09D11/38 ,  B41J2/165 ,  B41J2/17503 ,  C09D175/04

Abstract: An ink composition includes a colorant, a co-solvent, and an acid chosen from oleic acid, linoleic acid, undecanoic acid, dodecanoic acid, tridecanoic acid, and combinations thereof. The ink composition further includes lithium and water. An anti-evaporative layer forms, during uncapped non-use, at an interface between air and the ink composition in an orifice of a nozzle, thereby reducing evaporation of the water from the ink composition.

公开(公告)号：EP2358830A4

公开(公告)日：2015-01-21

申请号：EP08879027

申请日：2008-12-18

Applicant: HEWLETT PACKARD DEVELOPMENT CO

Inventor： VASUDEVAN SUNDAR

IPC: C09D11/00

CPC classification number: C09D11/326

Abstract: An ink-jet ink is disclosed which comprises polymer-dispersed pigment particles in a liquid vehicle, wherein the polymer has an acid number of at least about 175 and comprises polymer molecules having anionic groups and hydrogen bond-forming groups. The anionic groups and the hydrogen bond-forming groups are configured on each of the polymer molecules to permit association of the anionic groups with cationic groups on a print medium, and to also permit the hydrogen bond-forming groups on neighboring polymer molecules to interact pair wise with each other, as the liquid vehicle dries and/or is absorbed into the medium.

Abstract translation: 公开了一种在液体载体中包含聚合物分散的颜料颗粒的喷墨油墨，其中聚合物的酸值至少为约175，并且包含具有阴离子基团和形成氢键的基团的聚合物分子。 在每个聚合物分子上配置阴离子基团和氢键形成基团，以允许阴离子基团与印刷介质上的阳离子基团缔合，并且还允许相邻聚合物分子上的形成氢键的基团相互作用 因为液体车辆干燥和/或被吸收到介质中。

公开(公告)号：EP2547736A4

公开(公告)日：2014-03-12

申请号：EP10848098

申请日：2010-03-15

Applicant: HEWLETT PACKARD DEVELOPMENT CO

Inventor： VASUDEVAN SUNDAR ,  MCMANUS RICHARD ,  WICKRAMANAYAKE PALITHA

IPC: C09D11/00 ,  C09D11/10

CPC classification number: C09D11/38 ,  C08K5/09 ,  C08K2201/00 ,  C09D11/324