公开(公告)号：EP0853106B1

公开(公告)日：2001-11-21

申请号：EP97310494.6

申请日：1997-12-23

申请人： Scitex Digital Printing, Inc.

发明人： Thakkar, Sharad R. ,  Chen, Jing-Den

IPC分类号： C09D11/00

CPC分类号： C09D11/324

公开(公告)号：EP0859036A1

公开(公告)日：1998-08-19

申请号：EP97310714.7

申请日：1997-12-31

申请人： Scitex Digital Printing, Inc.

发明人： Chen, Jing-Den

IPC分类号： C09D11/00

CPC分类号： C09D11/324

摘要： An ink jet ink composition comprises a liquid vehicle, a pigment and an aqueous anionic black dye. The addition of the dye in this ink jet composition results in a self-redispersible pigment ink for use in ink jet printers. The dye is an aqueous anionic black dye selected from the group consisting of direct dyes, acid dyes, reactive dyes, and food dyes. The self-redispersible ink is formulated from a carbon black pigment ink by adding a first amount of an aqueous anionic black dye to the carbon black pigment ink to create a modified ink. This modified ink is evaluated for self-redispersibility. Additional amounts of the aqueous anionic black dye are added to the modified ink, as needed, to create a self-redispersible modified ink for ink jet printers.

摘要翻译： 喷墨油墨组合物包含液体载体，颜料和水性阴离子黑色染料。 在该喷墨组合物中添加染料可以得到用于喷墨打印机的自重新分散的颜料墨水。 染料是选自直接染料，酸性染料，活性染料和食品染料的水性阴离子黑色染料。 通过向炭黑颜料墨水中加入第一量的阴离子黑色染料水溶液，从碳黑颜料墨水中配制自再分散油墨以产生改性油墨。 评估该改性油墨的自重分散性。 根据需要将额外量的水性阴离子黑色染料加入到改性油墨中以产生用于喷墨打印机的自再分散改性油墨。

公开(公告)号：EP0751194A2

公开(公告)日：1997-01-02

申请号：EP96303078.8

申请日：1996-05-01

申请人： SCITEX DIGITAL PRINTING, Inc.

发明人： Chen, Jing-Den ,  Hixenbaugh, Jr. John W. ,  Liu, George C.A. ,  Botros, Raouf,

IPC分类号： C09D11/00

CPC分类号： C09D11/324

摘要： An ink jet ink composition comprises a liquid vehicle, a pigment, and a polymer to overcome conductivity. The problem to be addressed for carbon black pigment inks is how to achieve high dried ink film resistivity while maintaining print quality. With the present invention, dried ink resistivity of aqueous pigment ink is improved by using polymers to overcome conductivity. The present invention results in significant improvement in dried film resistivity of carbon black pigment ink jet inks, sufficient to eliminate charge lead to charge lead shorts and improve machine runnability and can, therefore, be used in ink jet printers.

摘要翻译： 一种喷墨油墨组合物包含液体载体，颜料，并克服传导性的高分子。 要处理的炭黑颜料油墨的问题是如何实现高干燥油墨膜电阻率，同时保持打印质量。 本发明，wässrige颜料墨的干燥的油墨电阻率是通过使用聚合物来克服电导率提高。 在炭黑颜料的喷墨油墨的干燥的薄膜电阻率，足够的显著改善本发明的结果，以消除电荷导致充电引线短裤和改善纸机的运行性能，并且可以，因此，在喷墨打印机中使用。

公开(公告)号：EP0709198A3

公开(公告)日：1996-06-05

申请号：EP95307489.5

申请日：1995-10-20

申请人： SCITEX DIGITAL PRINTING, Inc.

发明人： Chen, Jing-Den ,  Braun, Hilarion

IPC分类号： B41J2/06

CPC分类号： B41J2/085

摘要： A continuous ink jet system includes a linear array of orifices fluidically connected to a fluid supply and pressurization means to produce a linear array of jets, means for stimulating the jets for regular break-up of the jet into a plurality of uniform streams of drops, charging means consisting of a linear array of planar conducting elements disposed along the path of motion of the jets, one for each jet, such that placing a preselected voltage on one of the plurality of conducting elements causes an electrostatic charge to be induced on the corresponding jet, the electrostatic charge and the placement of the electrode being such that a charge drop receives a force impulse from the presence of the conducting elements, catcher means disposed to catch selected drops with predetermined charge from the charging system, return fluidic means disposed so that drops intercepted by the catcher can be returned through the fluidic system for eventual re-use in forming the jets, means for moving a substrate beneath the catcher means so that drops not intercepted by the catcher means are allowed to impact the substrate to cause printing. The invention provides the improvement of reversing the polarity of the charging means so as to create drops with positive charge.

摘要翻译： 连续喷墨系统包括流体连接至流体供应装置和加压装置的线性阵列的孔以产生线性阵列的射流，用于刺激射流以将射流定期分解成多个均匀的液滴流的装置， 充电装置包括沿射流的运动路径设置的平面导电元件的线性阵列，每个射流一个，使得在多个导电元件中的一个上放置预选电压导致静电电荷在相应的 静电荷和电极的放置使得电荷下降从导电元件的存在接收力脉冲，捕捉装置设置成从充电系统捕获具有预定电荷的选定液滴，返回流体装置设置成使得 由捕捉器拦截的液滴可以通过流体系统返回以便最终在形成喷嘴时重复使用，用于移动 在捕捉装置下方的基材，使得捕捉装置未拦截的墨滴被允许冲击基材以引起印刷。 本发明提供了改变充电装置极性的改进，从而产生带正电荷的液滴。

公开(公告)号：EP0709198B1

公开(公告)日：1999-08-11

申请号：EP95307489.5

申请日：1995-10-20

申请人： Scitex Digital Printing, Inc.

发明人： Chen, Jing-Den ,  Braun, Hilarion

IPC分类号： B41J2/035 ,  B41J2/06

CPC分类号： B41J2/085

公开(公告)号：EP0853106A3

公开(公告)日：1999-05-06

申请号：EP97310494.6

申请日：1997-12-23

申请人： Scitex Digital Printing, Inc.

发明人： Thakkar, Sharad R. ,  Chen, Jing-Den

IPC分类号： C09D11/00

CPC分类号： C09D11/324

摘要： An ink jet ink composition is provided which permits the printing of an image with both superior fastness and high optical density, for use in continuous ink jet printers. The ink comprises an aqueous liquid medium which contains acid carbon black having a volatile content within the range of 3.5 to 8% by weight of the total weight of the carbon black, and a water-soluble resin having a weight average molecular weight within the range of 5,000 to 25,000. The weight ratio of the acid carbon black to the water-soluble resin is within the range of 2:1 to 5:1. The ink further comprises a dispersed pigment having a maximum particle size less than 1 micron and a filtration ratio greater than or equal to 0.2 through a 1.2 micron filter.

摘要翻译： 提供一种喷墨油墨组合物，其允许打印具有优异的牢度和高光密度的图像，用于连续喷墨打印机。 油墨包含含水液体介质，其含有挥发性含量在炭黑总重量的3.5-8重量％范围内的酸性炭黑，以及重均分子量在该范围内的水溶性树脂 5,000到25,000。 酸性炭黑与水溶性树脂的重量比在2:1〜5:1的范围内。 油墨还包括通过1.2微米过滤器具有小于1微米的最大粒度和大于或等于0.2的过滤比的分散颜料。

公开(公告)号：EP0853106A2

公开(公告)日：1998-07-15

申请号：EP97310494.6

申请日：1997-12-23

申请人： Scitex Digital Printing, Inc.

发明人： Thakkar, Sharad R. ,  Chen, Jing-Den

IPC分类号： C09D11/00

CPC分类号： C09D11/324

摘要： An ink jet ink composition is provided which permits the printing of an image with both superior fastness and high optical density, for use in continuous ink jet printers. The ink comprises an aqueous liquid medium which contains acid carbon black having a volatile content within the range of 3.5 to 8% by weight of the total weight of the carbon black, and a water-soluble resin having a weight average molecular weight within the range of 5,000 to 25,000. The weight ratio of the acid carbon black to the water-soluble resin is within the range of 2:1 to 5:1. The ink further comprises a dispersed pigment having a maximum particle size less than 1 micron and a filtration ratio greater than or equal to 0.2 through a 1.2 micron filter.

公开(公告)号：EP0751194A3

公开(公告)日：1998-01-14

申请号：EP96303078.8

申请日：1996-05-01

申请人： SCITEX DIGITAL PRINTING, Inc.

发明人： Chen, Jing-Den ,  Hixenbaugh, Jr. John W. ,  Liu, George C.A. ,  Botros, Raouf,

IPC分类号： C09D11/00

CPC分类号： C09D11/324

摘要： An ink jet ink composition comprises a liquid vehicle, a pigment, and a polymer to overcome conductivity. The problem to be addressed for carbon black pigment inks is how to achieve high dried ink film resistivity while maintaining print quality. With the present invention, dried ink resistivity of aqueous pigment ink is improved by using polymers to overcome conductivity. The present invention results in significant improvement in dried film resistivity of carbon black pigment ink jet inks, sufficient to eliminate charge lead to charge lead shorts and improve machine runnability and can, therefore, be used in ink jet printers.

公开(公告)号：EP0709198A2

公开(公告)日：1996-05-01

申请号：EP95307489.5

申请日：1995-10-20

申请人： SCITEX DIGITAL PRINTING, Inc.

发明人： Chen, Jing-Den ,  Braun, Hilarion

IPC分类号： B41J2/06

CPC分类号： B41J2/085

摘要： A continuous ink jet system includes a linear array of orifices fluidically connected to a fluid supply and pressurization means to produce a linear array of jets, means for stimulating the jets for regular break-up of the jet into a plurality of uniform streams of drops, charging means consisting of a linear array of planar conducting elements disposed along the path of motion of the jets, one for each jet, such that placing a preselected voltage on one of the plurality of conducting elements causes an electrostatic charge to be induced on the corresponding jet, the electrostatic charge and the placement of the electrode being such that a charge drop receives a force impulse from the presence of the conducting elements, catcher means disposed to catch selected drops with predetermined charge from the charging system, return fluidic means disposed so that drops intercepted by the catcher can be returned through the fluidic system for eventual re-use in forming the jets, means for moving a substrate beneath the catcher means so that drops not intercepted by the catcher means are allowed to impact the substrate to cause printing. The invention provides the improvement of reversing the polarity of the charging means so as to create drops with positive charge.

摘要翻译： 连续喷墨系统包括与流体供应和加压装置（18）流体连接以产生线性阵列阵列的喷嘴的线性阵列，用于刺激喷嘴以将射流规则分解成多个均匀流的装置 液滴（16），由沿射流运动路径布置的平面导电元件（12）的线性阵列组成的充电装置，每个射流一个，以便将预选电压放置在多个导电元件之一上 12）导致在对应的射流上感应静电电荷，静电电荷和电极的放置使得电荷下降接收来自导电元件（12）的存在的力脉冲，捕获装置（22）设置 以从充电系统捕获预定电荷的选定液滴，返回流体装置设置成使得捕获器（22）拦截的液滴可以通过流体系统返回，以便最终重新使用 形成射流的装置，用于移动捕集器（22）下面的衬底（30）的装置意味着允许捕获装置（22）不被拦截的液滴撞击衬底（30）以引起打印。 本发明提供了使充电装置的极性反转以产生具有正电荷的液滴的改进。