公开(公告)号：JPH0912950A

公开(公告)日：1997-01-14

申请号：JP18766195

申请日：1995-07-03

Applicant: CANON KK

Inventor： YAMAMOTO MAYUMI ,  SAITOU ERIKO ,  SANADA MIKIO ,  MAFUNE KUMIKO ,  NAGASHIMA SATOSHI

IPC: B41J2/01 ,  B41M5/00 ,  C09D11/00 ,  C09D11/02

Abstract: PROBLEM TO BE SOLVED: To obtain a recording liquid excellent in water resistance, stick restorability and delivery stability, and capable of giving prints with high color development ad high deepness, containing an anionic dye with anionic group salt-formed by an alkali metal ion. SOLUTION: This recording liquid comprises an organic solvent, water and a carboxyl-contg. anionic dye with the anionic group bearing the form of salts selected from an alkali metal (including Li and Na) salt, ammonium salt, organic amine salt and alkanolamine salt and the alkali metal salt, ammonium or organic amine salt and alkanolamine salt accounting for 30-100%, 0-50% and 0-60% of the the number of the salt-formed anionic groups, respectively. The anionic dye is pref. a dye of formula I Pc is a metallophthalocyanine nucleus; R1 to R3 are each, an alkyl, etc.; X is carbonyl, of formula II [Z is NR4 R5 , SR6 (R4 to R6 are each H, an aralkyl, etc.), etc.], etc.; G is a COSH and/or COOH substituted colorless organic group; (t+q) is 3-4}.

公开(公告)号：JPH08302258A

公开(公告)日：1996-11-19

申请号：JP12567095

申请日：1995-04-27

Applicant: CANON KK

Inventor： MAFUNE KUMIKO ,  HAKAMATA SHINICHI ,  NAGASHIMA SATOSHI ,  SAITOU ERIKO

IPC: B41J2/01 ,  B41J2/175 ,  B41M5/00 ,  C09D11/00 ,  C09D11/02 ,  C09D11/033 ,  C09D11/328

Abstract: PURPOSE: To obtain an ink excellent in water resistance and dissolution stability in the case of recording on uncoated paper, especially storage stability at low temperature and having stable discharge and high printing concentration, and high in quality image by adding a specific amine compound to a specific nitrogen compound, etc. CONSTITUTION: This ink contains (A) a dye, (B) a liquid medium capable of dissolving or dispersing the component A, (C) a secondary amine (derivative) and/or a tertiary amine (derivative) having one or more kinds of groups selected from an alkyl group, carboxyl group and sulfonyl group and (D) a compound of formula I (X1 and X2 are each H, a hydroxylalkyl, with the proviso that they are not simultaneously H). Furthermore, a compound of formula II [R1 to R4 are each an 1-48C hydrocarbon which may be replaced with an (alkylamino), carboxyl or sulfone group or H and at least one of R1 to R4 is a >=6C hydrocarbon; (n) is 2-4; (m) is 1 to 99] is exemplified as the component C.

公开(公告)号：JPH08302256A

公开(公告)日：1996-11-19

申请号：JP12566895

申请日：1995-04-27

Applicant: CANON KK

Inventor： SAITOU ERIKO ,  NAGASHIMA SATOSHI ,  MAFUNE KUMIKO ,  HAKAMATA SHINICHI

IPC: B41J2/01 ,  B41J2/175 ,  B41M5/00 ,  C09D11/00 ,  C09D11/02 ,  C09D11/033 ,  C09D11/037 ,  C09D11/322 ,  C09D11/328 ,  C09D11/36 ,  C09D11/38

Abstract: PURPOSE: To obtain an ink excellent in preventing the disorder of printing caused when discharging ink after discharging the first one drop of ink from a nozzle and unusing for a time, having good water resistance to plain paper, stable also in long-period storage, and to carry out ink jet recording using the ink and to provide a recording apparatus using this ink. CONSTITUTION: This ink contains (A) a coloring agent, (B) a defoaming agent, (C) a compound having at least one kind of group selected from secondary amine, a derivative of the secondary amine, a tertiary amine and a derivative of the tertiary amine and their complex and having at least one kind of group selected from an alkyl group, a carboxylic group, a salt of carboxylic group, sulfone group and a salt of sulfone group and (D) a liquid medium for dissolving or dispersing these components. An ink jet recording method and a recording apparatus using this ink are provided.

公开(公告)号：JPH0860059A

公开(公告)日：1996-03-05

申请号：JP22270894

申请日：1994-08-25

Applicant: CANON KK

Inventor： SATO SHINICHI ,  TAKIZAWA YOSHIHISA ,  TERAOKA HISASHI ,  YAMAMOTO MAYUMI ,  NAGASHIMA SATOSHI ,  SAITOU ERIKO

IPC: B41J2/01 ,  B41J2/175 ,  B41M5/00 ,  C09D11/00 ,  C09D11/02

Abstract: PURPOSE: To obtain an ink which is excellent in storage stability and provides a high-quality print excellent in resistances to light and water when used for printing on plain paper by incorporating a specific UV absorber into an ink contg. a dye and a liq. medium. CONSTITUTION: A cerium oxide UV absorber (e.g., ceric oxide) is incorporated into an ink contg. a dye (pref. a nonazoic dye) and a liq. medium capable of dissolving or dispersing the dye (e.g., water and thiodiglycol). Pref. the ink further contains a nitrogen compd. of the formula [wherein R to R are each alkylamino, a 1-48C hydrocarbon group optionally substd. by a carboxyl (salt) or sulfo (salt) group, or H provided at least one of them is a 6C or higher hydrocarbon group; n is 2-4; and m is 1-99].

公开(公告)号：JPH0834942A

公开(公告)日：1996-02-06

申请号：JP19134894

申请日：1994-07-22

Applicant: CANON KK

Inventor： SATO SHINICHI ,  TAKIZAWA YOSHIHISA ,  SAITOU ERIKO ,  YAMAMOTO MAYUMI ,  TERAOKA HISASHI ,  NAGASHIMA SATOSHI

IPC: B41J2/01 ,  B41J2/175 ,  B41M5/00 ,  C09D11/00

Abstract: PURPOSE:To obtain the ink, capable of providing a high optical density (OD) image in recording on plain paper using a color ink, good in fixing properties and reduced in bleeding by respectively specifying the surface tension, viscosity and forward contact angle with a material to be recorded. CONSTITUTION:This ink has 20X10 to 4X1 N/cm, preferably 25X10 to 4X10 N/cm surface tension at 25 deg.C, 0.7X10 to 12X Pa.s, preferably 10m10 to 4.0X1 Pa. s viscosity at 25 deg.C and 60-180 deg., preferably 90-180 deg. forward contact angle with a material to be recorded at 25 deg.C in an ink containing (A) a dye having carboxyl groups, (B) a liquid medium capable of dissolving the component (A) and (C) a polymeric substance. Furthermore, the component (A) is preferably an anionic dye of formula I [Ar and Ar1 are each a (substituted)aryl J and J1 are each formula II (R5 is H, an alkyl, etc.), etc.; R1 to R4 are each H or a (substituted)alkyl; L is a bivalent connecting group; X is carbonyl, etc.], etc., such as an azo-based anionic dye.

公开(公告)号：JPH07268262A

公开(公告)日：1995-10-17

申请号：JP4500595

申请日：1995-02-10

Applicant: CANON KK

Inventor： SAITOU ERIKO ,  TAKIZAWA YOSHIHISA ,  TERAOKA HISASHI ,  SATO SHINICHI ,  YAMAMOTO MAYUMI ,  NAGASHIMA SATOSHI ,  HATTORI YOSHIFUMI

IPC: B41J2/01 ,  B41J2/175 ,  B41M5/00 ,  C09D11/00 ,  C09D11/02 ,  C09D11/033 ,  C09D11/328 ,  C09D11/38

Abstract: PURPOSE:To obtain an ink which gives a record excellent in water resistance and fixing properties and is excellent in clogging prevention and long-term storage stability by compounding a specific dye, a specific compd., and a liq. medium for dissolving or dispersing them. CONSTITUTION:An ink comprises a dye with the state of free acid represented by formula I {wherein R1, R2, and R2' are carboxyl. sulfo, OH, amino, 1-2C alkyl, or H; R3 to R6 are each carboxyl, sulfo, amino, OH, alkylamido, or H; and X is a group of formula II or III [wherein R7 is carboxyl, sulfo, or II; and R8 and R9 are each Rt, alkylamido, or a group of formula IV (wherein n is 1-5; and m is 0 or 1)]}, at least one compd. selected from the group consisting of a sec. amine (deriv.), a tert. amine (deriv.), and their combined compds, and having at least one group selected from the group consisting of alkyl, carboxyl (salt), and sulfo (salt) groups (e.g. C12H25NHC3H6NHC2H4 COONa), and a liq. medium for dissolving or dispersing the dye and the compd.

公开(公告)号：JPH07166116A

公开(公告)日：1995-06-27

申请号：JP24619294

申请日：1994-10-12

Applicant: CANON KK

Inventor： NAGASHIMA SATOSHI ,  TOCHIHARA SHINICHI

IPC: B41J2/01 ,  B41M5/00 ,  C09D11/00 ,  C09D11/02 ,  C09D11/033 ,  C09D11/328

Abstract: PURPOSE:To obtain an ink having improved water resistance of printed recorded material and excellent shelf stability in a high-temperature environment without exerting a bad influence on printing quality of printed recorded material of ordinary paper by using both a compound of a specific formula and a specific amine. CONSTITUTION:This ink comprises (A) a compound of formula I (R is H, nitro or amino; R is carboxyl, sulfonic acid or phosphoric acid) and (B) a primary to tertiary amine in an ink containing a colorant and a liquid medium to dissolve or disperse the colorant. The component B is preferably a compound of formula II [R3 is a 4-48C alkyl or H; R is a (CH2)a-X1 ((a) is 1-4) or H; R5 is a (CH2)b-X2, a R6-Y or H ((b) is 1-4; R6 is a 1-48C alkyl or H); Z is a (NR7ClH21)c (NHCnH2n)d ((1) and (n) are 2-4; c+d is 0-50); R is a (CH2)h-X4 ((h) is 1-4; X1 to X4 are carboxyl, etc.)].

公开(公告)号：JPH07150086A

公开(公告)日：1995-06-13

申请号：JP29820193

申请日：1993-11-29

Applicant: CANON KK

Inventor： TERAOKA HISASHI ,  TAKIZAWA YOSHIHISA ,  YAMAMOTO MAYUMI ,  NAGASHIMA SATOSHI ,  SATO SHINICHI ,  SAITOU ERIKO ,  HATTORI YOSHIFUMI ,  MURAI KEIICHI ,  MAFUNE KUMIKO ,  YAMAMOTO TAKAO ,  SANADA MIKIO ,  KATSURAGI TAKASHI

IPC: B41J2/01 ,  B41J2/175 ,  B41M5/00 ,  C09D11/00 ,  C09D11/326 ,  C09D11/328 ,  C09D11/38 ,  C09D11/40

Abstract: PURPOSE:To obtain ink having excellent dissolution stability of dye and water resistance, providing a high-quality colored picture image, comprising a dye containing at least one ammonium ion in a molecule and an organic amine. CONSTITUTION:This ink comprises (A) a dye containing at least one ammonium ion as a counter ion in a molecule, especially preferably compounds of formula I and II, etc., (B) an organic amine, preferably a primary to a tertiary amine such as monoethanolamine or diethanolamine, preferably further (C) a surfactant, (D) a nitrogen-containing compound, (E) at least one compound of a hydroxide and an alkali metal salt and (F) a sulfate. The amount of the component A is 0.2-10%, preferably 0.5.-8.0% based on the whole amount of the ink. The amount of the component B is 0.01-10%, preferably 0.1-5.0% based on the whole amount of the ink.

公开(公告)号：JPH05125307A

公开(公告)日：1993-05-21

申请号：JP31315891

申请日：1991-11-01

Applicant: CANON KK

Inventor： NAGASHIMA SATOSHI ,  NISHIWAKI OSAMU ,  TOCHIHARA SHINICHI

IPC: B41M5/00 ,  B41J2/01 ,  B41J2/175 ,  C09D11/00 ,  C09D11/02 ,  C09D11/033 ,  C09D11/037 ,  C09D11/322 ,  C09D11/328

Abstract: PURPOSE:To obtain an ink having excellent clogging-preventing effect by adding an organic amine salt of an unsaturated dicarboxylic acid and an alkanolamine to an ink and to provide an ink-jet recording method capable of recording on a plain paper by using the above ink. CONSTITUTION:The objective ink contains (A) a recording agent, (B) a liquid medium for dissolving or dispersing the component A, preferably a mixture of 30-95wt.% (based on the composition) of water and 1-40wt.% of a water-soluble organic solvent (e.g. triethanolamine), (C) 0.1-10wt.% of an organic amine salt of an unsaturated dicarboxylic acid (e.g. maleic acid triethanolamine salt) and (D) 0.1-15wt.% of a monoethanolamine (e.g. triethanolamine). The ink prepared by the above process is ejected by the action of thermal energy using an ink-jet recording apparatus furnished with an ink holder and a recording unit having a recording head to eject the ink in the form of ink droplets. A good record can be formed on a plain paper, etc., by this method.

公开(公告)号：JPH0586314A

公开(公告)日：1993-04-06

申请号：JP27178791

申请日：1991-09-25

Applicant: CANON KK

Inventor： NAGASHIMA SATOSHI ,  NISHIWAKI OSAMU ,  TOCHIHARA SHINICHI ,  MAFUNE KUMIKO

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

Abstract: PURPOSE:To provide the subject method which does not adversely affects the quality of a printed record when used for recording on plain paper commonly used in a business office, etc., gives the record a sufficient water resistance, and enables a high-quality printing with no problem even after an ink has been stored long. CONSTITUTION:An ink contg. a recording agent, a liq. medium in which the agent is dissolved or dispersed, and 0.1-5.0wt.% compd. of the formula (wherein two of four groups, R1 to R4, are alkyl and the rest are hydrogen) is used in ink jet recording wherein ink drops are jetted out through an orifice in response to a recording signal to record on a recording material.