公开(公告)号：EP1624035A4

公开(公告)日：2007-04-25

申请号：EP03733575

申请日：2003-06-26

Applicant: CANON KK

Inventor： UDAGAWA MASAKO ,  SUGAMA SADAYUKI ,  KOIKE SHOJI ,  AOKI MAKOTO ,  NAGASHIMA AKIRA ,  HAKAMADA SHINICHI

IPC: B41J2/01 ,  B41M3/14 ,  B41M5/00 ,  C09D11/00 ,  C09D11/328

CPC classification number: C09D11/32 ,  B41M3/144 ,  C09D11/50

Abstract: The present invention provides a fluorescence ink having a high fluorescence intensity, and an ink jet recording method using the same. The ink contains a first fluorescent coloring material that emits fluorescence at a predetermined fluorescence wavelength to be used for measurement or determination with excitation at a predetermined excitation wavelength, a second fluorescent coloring material that emits fluorescence on excitation at the predetermined excitation wavelength, where the excitation spectrum of the first coloring material in the ink to obtain the fluorescence at the predetermined emission wavelength has a peak wavelength range next to the predetermined fluorescence wavelength, and the emission fluorescence spectrum of the second coloring material has an emission wavelength region substantially including at least the above peak wavelength range.

公开(公告)号：EP1624034A4

公开(公告)日：2007-04-18

申请号：EP03733574

申请日：2003-06-26

Applicant: CANON KK

Inventor： UDAGAWA MASAKO ,  KOIKE SHOJI ,  AOKI MAKOTO ,  NAGASHIMA AKIRA ,  HAKAMADA SHINICHI

IPC: B41J2/01 ,  B41M3/14 ,  B41M5/00 ,  C09D11/00

CPC classification number: C09D11/50 ,  Y10T428/24802 ,  Y10T428/24893 ,  Y10T428/24901

Abstract: An aqueous fluorescent ink containing water, a colorant and an organic solvent the latter two soluble or dispersible in water, and used for measuring/judging fluorescence in a visible region with an exciting wavelength in a predetermined ultraviolet region, characterized in that the colorant has a colorant structure having fluorophores, and a water-soluble colorant having a sulfonic group as a water-soluble group in a free acid form is used. The water resistance and light fastness are favorable. The content of the fluorescent colorant in ink can be greatly increased though conventionally only a small amount of fluorescent colorant can be contained because of the concentration quenching problem. The fluorescence is excellent and the recorded image has an excellent water resistance. The resistance of the colorant to fixing to the recording medium and the reliability are also excellent.

公开(公告)号：EP1899166A4

公开(公告)日：2010-01-20

申请号：EP06780815

申请日：2006-06-29

Applicant: CANON KK

Inventor： OSUMI KOICHI ,  SUGAMA SADAYUKI ,  HAKAMADA SHINICHI ,  SAKAI JUNICHI ,  NITO YASUHIRO ,  SUZUKI KATSUHIKO

IPC: B41J2/18

CPC classification number: B41J2/16523 ,  B41J2002/1742

公开(公告)号：EP1764396A4

公开(公告)日：2009-06-10

申请号：EP05755739

申请日：2005-06-28

Applicant: CANON KK

Inventor： KITAMURA YUI ,  SANADA MIKIO ,  TAKIZAWA YOSHIHISA ,  OGASAWARA MASASHI ,  WATANABE TOMONARI ,  IMAI TAKASHI ,  NITO YASUHIRO ,  IWATA TETSU ,  HAKAMADA SHINICHI ,  SUGAMA SADAYUKI

IPC: C09D11/00 ,  B41J2/01 ,  B41M5/00

CPC classification number: C09D11/326

Abstract: Disclosed is an aqueous ink containing water, a plurality of water-soluble organic solvents and a colorant. The colorant is composed of a pigment, and at least one ionic group is bonded to the surface of a pigment particle directly or via an other atomic group. The water-soluble organic solvents contain a good solvent and a poor solvent for the pigment. The poor solvent does not solvate the pigment at all or does not substantially solvate the pigment. The ionic group is not dissociated at all or is not substantially dissociated in the poor solvent. Furthermore, a poor solvent has the largest Ka value, which is determined by the Bristow method, among the water-soluble organic solvents.

公开(公告)号：EP1728645A4

公开(公告)日：2008-10-29

申请号：EP05721343

申请日：2005-03-16

Applicant: CANON KK

Inventor： NITO YASUHIRO ,  HAKAMADA SHINICHI ,  SHIROTA KOROMO ,  SHINJO KENJI ,  KURABAYASHI YUTAKA ,  TSUJIMURA MASASHI

IPC: B41J2/01 ,  B41M5/00 ,  C09D11/00 ,  C09D11/322 ,  C09D11/328 ,  C09D11/40 ,  C09D11/54

CPC classification number: C09D11/30 ,  C09D11/54

Abstract: A liquid composition for use in a method for recording an image having a step of applying an ink containing a coloring material in a dissolved state or a dispersed state on a recording medium and a step of applying, on the above recording medium, a liquid composition destabilizing the dissolved state or a dispersed state of the above coloring material in the ink by the contact with the ink, characterized in that the above liquid composition comprises a multi-valent metal ion, water and water-soluble organic compounds 1 and 2, the liquid composition contains the above water-soluble organic compound 1 in a content X(%) of 15 mass % or more, and a content X(%) of the above water-soluble organic compound (1) in the liquid composition and a content Y(%) of the above water-soluble organic compound (2) in the liquid composition satisfy a specific relationship. The application of the above liquid composition on a recording medium allows the inhibition of the curling of the medium, while securing the good stability of discharge.

公开(公告)号：EP1764395A4

公开(公告)日：2007-09-12

申请号：EP05755690

申请日：2005-06-28

Applicant: CANON KK

Inventor： IMAI TAKASHI ,  SANADA MIKIO ,  NITO YASUHIRO ,  IWATA TETSU ,  HAKAMADA SHINICHI ,  SUGAMA SADAYUKI ,  TAKAYAMA HIDEKI

IPC: C09D11/00 ,  B41J2/01 ,  B41M5/00

CPC classification number: C09D11/40 ,  C09D11/54

Abstract: An ink having a sufficiently large area factor even with a small amount of ink droplet and being excellent in shelf life stability is disclosed which enables to obtain an image having excellent image density. Specifically disclosed is a cyan ink used for an ink set comprising four kinds of aqueous inks, namely a cyan ink, a magenta ink, an yellow ink and a black ink, respectively containing at least water, a water-insoluble colorant and a plurality of water-soluble organic solvents including a good solvent for the water-insoluble colorant and a poor solvent for the water-insoluble colorant. The cyan ink is characterized in that the total amount A1 (% by mass) of the good solvent contained in the cyan ink and the total amount B1 (% by mass) of the poor solvent contained in the cyan ink are in a ratio B1/A1 of not less than 0.5 and not more than 3.0; and the water-soluble solvent having the largest Ka value determined by the Bristow method among the water-soluble organic solvents is a poor solvent.

Abstract translation: 公开了即使墨滴量少也具有足够大的面积系数并且具有优异的保存期限稳定性的墨水，其能够获得具有优异图像密度的图像。 具体公开的是用于包含四种水性油墨即青色油墨，洋红色油墨，黄色油墨和黑色油墨的油墨组的青色油墨，所述油墨至少分别包含水，水不溶性着色剂和多种 包括用于水不溶性着色剂的良溶剂和用于水不溶性着色剂的不良溶剂的水溶性有机溶剂。 青色油墨的特征在于青色油墨中包含的良溶剂的总量A1（质量％）和青色油墨中包含的不良溶剂的总量B1（质量％）以B1 / A1不小于0.5且不大于3.0; 在水溶性有机溶剂中由布里斯托法确定的Ka值最大的水溶性溶剂是不良溶剂。

公开(公告)号：ES2365391T3

公开(公告)日：2011-10-03

申请号：ES03733574

申请日：2003-06-26

Applicant: CANON KK

Inventor： UDAGAWA MASAKO ,  KOIKE SHOJI ,  AOKI MAKOTO ,  NAGASHIMA AKIRA ,  HAKAMADA SHINICHI

IPC: B41J2/01 ,  B41M3/14 ,  B41M5/00 ,  C09D11/00

Abstract: Tinta fluorescente en base de agua que emite una fluorescencia en una región de luz visible mediante la irradiación de una luz de excitación de una longitud de onda de excitación predeterminada en una región ultravioleta, comprendiendo la tinta agua en un intervalo del 30 al 95% en peso, un material colorante que se disuelve o se dispersa en agua, y un disolvente orgánico, en la que el material colorante tiene varios grupos fluorescentes y grupo ácido sulfónico como grupo soluble en agua en una estructura del mismo en estado de un ácido libre, y en el que el grupo fluorescente tiene una estructura básica seleccionada del grupo que comprende.

公开(公告)号：AT513024T

公开(公告)日：2011-07-15

申请号：AT03733574

申请日：2003-06-26

Applicant: CANON KK

Inventor： UDAGAWA MASAKO ,  KOIKE SHOJI ,  AOKI MAKOTO ,  NAGASHIMA AKIRA ,  HAKAMADA SHINICHI

IPC: B41J2/01 ,  B41M3/14 ,  B41M5/00 ,  C09D11/00

Abstract: The present invention provides a fluorescence ink having a high fluorescence intensity, and an ink jet recording method using the same. The ink contains a first fluorescent coloring material that emits fluorescence at a predetermined fluorescence wavelength to be used for measurement or determination with excitation at a predetermined excitation wavelength, a second fluorescent coloring material that emits fluorescence on excitation at the predetermined excitation wavelength, where the excitation spectrum of the first coloring material in the ink to obtain the fluorescence at the predetermined emission wavelength has a peak wavelength range next to the predetermined fluorescence wavelength, and the emission fluorescence spectrum of the second coloring material has an emission wavelength region substantially including at least the above peak wavelength range.

公开(公告)号：AT474026T

公开(公告)日：2010-07-15

申请号：AT05755690

申请日：2005-06-28

Applicant: CANON KK

Inventor： IMAI TAKASHI ,  SANADA MIKIO ,  NITO YASUHIRO ,  IWATA TETSU ,  HAKAMADA SHINICHI ,  SUGAMA SADAYUKI ,  TAKAYAMA HIDEKI

IPC: C09D11/00 ,  B41J2/01 ,  B41M5/00

Abstract: The present invention aims to provide an ink which has a sufficiently large area factor even in a small ink droplet quantity and can obtain images having a high image density, and further has a superior storage stability. According to the present invention, a cyan ink is provided which is used in an ink set having four kinds of aqueous inks consisting of a cyan ink, a magenta ink, a yellow ink and a black ink in which each ink comprises at least water, a water-insoluble coloring material, and a plurality of water-soluble organic solvents having a good medium or good mediums for the water-insoluble coloring material and a poor medium or poor mediums for the water-insoluble coloring material, wherein, the ratio B 1 /A 1 is from 0.5 or more to 3.0 or less, where A 1 denotes the total content (mass%) of the good medium based on the total mass of the cyan ink and B 1 denotes the total content (mass%) of the poor medium based on the total mass of the cyan ink, and a water-soluble organic solvent which shows the maximum Ka value among the respective Ka values of the plurality of water-soluble organic solvents as determined by the Bristow method is the poor medium.

公开(公告)号：CA2565700C

公开(公告)日：2010-05-04

申请号：CA2565700

申请日：2005-06-28

Applicant: CANON KK

Inventor： KITAMURA YUI ,  SANADA MIKIO ,  TAKIZAWA YOSHIHISA ,  OGASAWARA MASASHI ,  WATANABE TOMONARI ,  IMAI TAKASHI ,  NITO YASUHIRO ,  IWATA TETSU ,  HAKAMADA SHINICHI ,  SUGAMA SADAYUKI

IPC: C09D11/00 ,  B41J2/01 ,  B41M5/00

Abstract: Disclosed is an aqueous ink comprising at least water, a plurality of water-soluble organic solvents and a coloring material. The coloring material is a pigment, and, it contains a pigment particle having at least one ionic group bonded to a surface of the pigment particle directly or via another atomic group. The plurality of water-soluble organic solvents have a good medium or good mediums for the pigment and a poor medium or poor mediums for the pigment. The poor medium does not solvate perfectly or substantially the pigment. The ionic group undergoes perfectly or substantially no ionic dissociation in the poor medium. Also, among the respective Ka values of the plurality of water-soluble organic solvents as determined by the Bristow method, the Ka value of the poor medium is maximum.