公开(公告)号：US07388040B2

公开(公告)日：2008-06-17

申请号：US10820612

申请日：2004-04-08

Applicant: Richard A. Sader ,  Mark L. Choy ,  Yi-Hua Tsao ,  Paul J. Bruinsma

Inventor： Richard A. Sader ,  Mark L. Choy ,  Yi-Hua Tsao ,  Paul J. Bruinsma

IPC: C09D11/10 ,  C08K5/52 ,  B05D3/10

CPC classification number: C09D11/54 ,  C09D11/30

Abstract: A fixer fluid having reduced kogation. The fixer fluid includes at least one phosphate ester surfactant and at least one cationic polymer, wherein the fixer fluid is formulated so that the at least one phosphate ester surfactant does not precipitate with the at least one cationic polymer. The at least one phosphate ester surfactant may be an anionic phosphate ester surfactant or an amphoteric phosphate ester surfactant. If the at least one phosphate ester surfactant is an anionic phosphate ester surfactant, it may have greater than or equal to approximately 2 moles of ethylene oxide per mole of the phosphate ester surfactant. The present invention also relates to an inkjet ink having reduced kogation and a method of producing a fixer fluid having reduced kogation.

Abstract translation: 定影液具有减少的结垢。 定影液包括至少一种磷酸酯表面活性剂和至少一种阳离子聚合物，其中定影液被配制成使得至少一种磷酸酯表面活性剂不与至少一种阳离子聚合物一起沉淀。 所述至少一种磷酸酯表面活性剂可以是阴离子磷酸酯表面活性剂或两性磷酸酯表面活性剂。 如果至少一种磷酸酯表面活性剂是阴离子磷酸酯表面活性剂，则每摩尔磷酸酯表面活性剂可具有大于或等于约2摩尔环氧乙烷。 本发明还涉及一种具有减少的结垢的喷墨油墨和一种生产具有减少的结垢的定影液的方法。

公开(公告)号：US5946012A

公开(公告)日：1999-08-31

申请号：US90968

申请日：1998-06-04

Applicant: Kenneth J. Courian ,  John L. Stoffel ,  Richard A. Sader ,  Keshava A. Prasad ,  Steven L. Webb ,  David H. Donovan ,  Jules G. Moritz, III ,  Brian J. Keefe ,  Steven W. Steinfield ,  Winthrop D. Childers

Inventor： Kenneth J. Courian ,  John L. Stoffel ,  Richard A. Sader ,  Keshava A. Prasad ,  Steven L. Webb ,  David H. Donovan ,  Jules G. Moritz, III ,  Brian J. Keefe ,  Steven W. Steinfield ,  Winthrop D. Childers

IPC: B41J2/05 ,  B41J2/14 ,  B41J2/16

CPC classification number: B41J2/1643 ,  B41J2/04511 ,  B41J2/04541 ,  B41J2/04543 ,  B41J2/04546 ,  B41J2/0458 ,  B41J2/04581 ,  B41J2/14024 ,  B41J2/1404 ,  B41J2/14072 ,  B41J2/14129 ,  B41J2/14145 ,  B41J2/14201 ,  B41J2/1433 ,  B41J2/1603 ,  B41J2/1623 ,  B41J2/1625 ,  B41J2/1628 ,  B41J2/1631 ,  B41J2/1634 ,  B41J2202/13

Abstract: An inkjet drop ejection system comprises a combination of printhead components and ink, mutually tuned to maximize operating characteristics of the printhead and print quality and dry time of the ink. Use of a short shelf (distance from ink source to ink firing element), on the order of 55 microns, provides a very high speed refill. However, it is a characteristic of high speed refill that it has a tendency for being over-damped. To provide the requisite damping, the ink should have a viscosity greater than about 2 cp. In this way, the ink and architecture work together to provide a tuned system that enables stable operation at high frequencies. One advantage of the combination of a pigment and a dispersant in the ink is the resultant higher viscosity provided. The high speed would be of little value if the ink did not have a fast enough rate of drying. This is accomplished by the addition of alcohols or alcohol(s) and surfactant(s) to the ink. Fast dry times are achieved with a combination of alcohols, such as iso-propyl alcohol with a 4 or 5 carbon alcohol or with iso-propyl alcohol plus surfactant(s). One preferred embodiment of a short shelf (90 to 130 microns), ink viscosity of about 3 cp, and surface tension of about 54 provides a high speed drop generator capable of operating at about 12 KHz. Reducing the shelf length to about 55 microns, in combination with rotating the substrate at an angle to the scan direction, permits maximum drop generator operation as high as about 20 KHz. As a consequence of employing pigment-based inks, high optical densities are realized, along with excellent permanence (no fade and better waterfastness), and good stability. The combination of preferred ink and pen architecture provides good drop generator stability.

Abstract translation: 喷墨墨滴喷射系统包括打印头部件和油墨的组合，其相互调节以最大化打印头的操作特性以及油墨的打印质量和干燥时间。 使用大约55微米的短搁架（墨水源到墨水喷射元件的距离）提供了非常高的速度补充。 然而，高速补充的特征是它具有过度阻尼的倾向。 为了提供必要的阻尼，油墨的粘度应大于约2cp。 以这种方式，墨水和结构共同工作，提供了一个可在高频下稳定运行的调谐系统。 油墨中颜料和分散剂的组合的一个优点是得到较高的粘度。 如果墨水没有足够的干燥速度，高速度就没有什么价值。 这通过向油墨中加入醇或醇和表面活性剂来实现。 快速干燥时间是通过醇，如异丙醇与4或5碳醇或与异丙醇加表面活性剂的组合来实现的。 短架（90-130微米），油墨粘度约为3cp，表面张力约为54的一个优选实施例提供了能够在约12KHz下操作的高速液滴发生器。 将搁板长度减小至约55微米，与基板以扫描方向成一定角度的旋转结合使得最大的液滴发生器运转高达约20KHz。 作为使用颜料基油墨的结果，实现了高的光密度，以及优异的耐久性（不褪色和更好的耐水性）和良好的稳定性。 优选的墨水和笔结构的组合提供了良好的液滴发生器稳定性。

公开(公告)号：US06610129B1

公开(公告)日：2003-08-26

申请号：US09543382

申请日：2000-04-05

Applicant: Richard A Sader ,  Paul J. Bruinsma ,  Amiya K Chatterjee ,  Howard A Doumaux ,  Noah C. Lassar ,  Matthew D Giere

Inventor： Richard A Sader ,  Paul J. Bruinsma ,  Amiya K Chatterjee ,  Howard A Doumaux ,  Noah C. Lassar ,  Matthew D Giere

IPC: C09D1100

CPC classification number: C09D11/38

Abstract: An ink-jet ink composition and a method of printing with the ink composition comprising at least one colorant and an aqueous vehicle comprising at least one refractory or noble metal-reactive component.

Abstract translation: 一种喷墨油墨组合物和使油墨组合物印刷的方法，所述油墨组合物包含至少一种着色剂和含有至少一种难熔或贵金属反应性组分的水性载体。

公开(公告)号：US06607589B2

公开(公告)日：2003-08-19

申请号：US09837445

申请日：2001-04-17

Applicant: Raymond J Adamic ,  Richard A Sader ,  Gary W Byers ,  Paul J. Bruinsma ,  Howard A. Doumaux ,  Kai Kong Iu ,  Richard Anderson ,  Hiang P Lauw

Inventor： Raymond J Adamic ,  Richard A Sader ,  Gary W Byers ,  Paul J. Bruinsma ,  Howard A. Doumaux ,  Kai Kong Iu ,  Richard Anderson ,  Hiang P Lauw

IPC: C09D1100

CPC classification number: C09D11/328 ,  C09D11/40

Abstract: An aqueous inkjet ink and an ink set using such ink, the ink comprising as colorant, a Copper Phthalocyanine (CuPc) dye compound having formula II: wherein (x,y,z)=4.

Abstract translation: 一种水性喷墨油墨和使用这种油墨的油墨组合物，该油墨包括着色剂，具有式II的铜酞菁（CuPc）染料化合物：其中（x，y，z）= 4。

公开(公告)号：US5874974A

公开(公告)日：1999-02-23

申请号：US608376

申请日：1996-02-28

Applicant: Kenneth J. Courian ,  John L. Stoffel ,  Richard A. Sader ,  Keshava A. Prasad ,  Steven L. Webb ,  David H. Donovan ,  Jules G. Moritz, III ,  Brian J. Keefe ,  Steven W. Steinfield ,  Winthrop D. Childers

Inventor： Kenneth J. Courian ,  John L. Stoffel ,  Richard A. Sader ,  Keshava A. Prasad ,  Steven L. Webb ,  David H. Donovan ,  Jules G. Moritz, III ,  Brian J. Keefe ,  Steven W. Steinfield ,  Winthrop D. Childers

IPC: B41J2/05 ,  B41J2/14 ,  B41J2/16 ,  B41J2/175

CPC classification number: B41J2/1643 ,  B41J2/04511 ,  B41J2/04541 ,  B41J2/04543 ,  B41J2/04546 ,  B41J2/0458 ,  B41J2/04581 ,  B41J2/14024 ,  B41J2/1404 ,  B41J2/14072 ,  B41J2/14129 ,  B41J2/14145 ,  B41J2/14201 ,  B41J2/1433 ,  B41J2/1603 ,  B41J2/1623 ,  B41J2/1625 ,  B41J2/1628 ,  B41J2/1631 ,  B41J2/1634 ,  B41J2202/13

Abstract: An inkjet drop ejection system comprises a combination of printhead components and ink, mutually tuned to maximize operating characteristics of the printhead and print quality and dry time of the ink. Use of a short shelf (distance from ink source to ink firing element), on the order of 55 microns, provides a very high speed refill. However, it is a characteristic of high speed refill that it has a tendency for being overdamped. To provide the requisite damping, the ink should have a viscosity greater than about 2 cp. In this way, the ink and architecture work together to provide a tuned system that enables stable operation at high frequencies. One advantage of the combination of a pigment and a dispersant in the ink is the resultant higher viscosity provided. The high speed would be of little value if the ink did not have a fast enough rate of drying. This is accomplished by the addition of alcohols or alcohol(s) and surfactant(s) to the ink. Fast dry times are achieved with a combination of alcohols, such as isopropyl alcohol with a 4 or 5 carbon alcohol or with iso-propyl alcohol plus surfactant(s). One preferred embodiment of a short shelf (90 to 130 microns), ink viscosity of about 3 cp, and surface tension of about 54 provides a high speed drop generator capable of operating at about 12 KHz. Reducing the shelf length to about 55 microns, in combination with rotating the substrate at an angle to the scan direction, permits maximum drop generator operation as high as about 20 KHz. As a consequence of employing pigment-based inks, high optical densities are realized, along with excellent permanence (no fade and better waterfastness), and good stability. The combination of preferred ink and pen architecture provides good drop generator stability.

Abstract translation: 喷墨墨滴喷射系统包括打印头部件和油墨的组合，其相互调节以最大化打印头的操作特性以及油墨的打印质量和干燥时间。 使用大约55微米的短搁架（墨水源到墨水喷射元件的距离）提供了非常高的速度补充。 然而，它具有高速补充的特点，它具有过度阻尼的倾向。 为了提供必要的阻尼，油墨的粘度应大于约2cp。 以这种方式，墨水和结构共同工作，提供了一个可在高频下稳定运行的调谐系统。 油墨中颜料和分散剂的组合的一个优点是得到较高的粘度。 如果墨水没有足够的干燥速度，高速度就没有什么价值。 这通过向油墨中加入醇或醇和表面活性剂来实现。 快速干燥时间通过醇，例如异丙醇与4或5个碳醇或与异丙醇加表面活性剂的组合来实现。 短架（90-130微米），油墨粘度约为3cp，表面张力约为54的一个优选实施例提供了能够在约12KHz下操作的高速液滴发生器。 将搁板长度减小至约55微米，与基板以扫描方向成一定角度的旋转结合使得最大的液滴发生器运转高达约20KHz。 作为使用颜料基油墨的结果，实现了高的光密度，以及优异的耐久性（不褪色和更好的耐水性）和良好的稳定性。 优选的墨水和笔结构的组合提供了良好的液滴发生器稳定性。