WO2006011663A1

Inkjet ink, inkjet recording method, ink cartridge, recording unit and inkjet recorder

Abstract

Disclosed is an inkjet ink which enables to obtain a good image by suppressing metallic luster, namely bronzing which occurs when the ink is printed on a recording medium. Such an inkjet ink contains at least a colorant, and the colorant is composed of a compound represented by a specific general formula or a salt thereof. The inkjet ink further contains a specific amine compound.

WO2006011663A1, drawing sheet 1
Sheet 1 of 29

Term

No projected expiry on record.

  1. Priority
  2. Filed
  3. Published
  4. Today

12 claims: 2 independent, 10 dependent

  1. 1
    at least, it sets in the ink for ink-jets containing a color material -- the above-mentioned color material is a compound denoted by following general formula (I), or its salt -- further -- the general following In Gugziertz containing the Amin compound denoted by formula (I I) Ink for ♪. General contract (I). Enclosure (General formula (I) Inside and M being an alkaline metal or ammonium. R) 1* R 2 They are a hydrogen atom, a sulfonic group, and a carboxyl group to Each one independence. (however, R) 2 The same the case where it becomes a hydrogen atom is sometimes excluded -- it is -- a chlorine atom, a hydroxyl machine, a Amino machine, and mono-or of Y are dialkylamino groups -- 1, m, and n -- respectively -- 1 =0*
  2. 2
    2, m=l*
  3. 3
    3 and n=:! general formula [ (I I) ] -- N R 1 F*2 r 3 (inside of a general formula (I I), R) * 3 (however, l+m+n=3*4) it is -- substitution machine A substitution position is only the 4th place or 4'. 2 R 3 A hydrogen atom, a Alkyl machine, a hydroxy low-grade Alkyl machine, a cyclohexyl machine, and mono-or are a Dialkylamino alkyl machine, a Shano low-grade Alkyl machine, and a phenyl group that may be replaced at Are independence (however, R). 2 R 3 The case where All serves as a hydrogen atom is excluded. The 2. said color material is a compound denoted by the following general formula (I I I), or its salt. Ink for ink-jets given in Claim 1. General formula (I I I) (The inside of general formula (I I I) and M being an alkaline metal or ammonium.) It carries out and m and n are 1 = 0*2, m= 1*3, and n=l*3, respectively. (However, l+m+n = 3* 4) it is -- the substitution position of a substitution machine is only the 4th place or 4'. Claim whose Amin compound denoted by the 3. above-mentioned general formula (I I) is first-class Amin Paragraph 1 or ink for ink Jeetsu ♪ given in 2.
  4. 4
    The Amin compound denoted by said general formula (I I) is tris. (hydronalium Kisime Chill) Any of Claim 1~3 which is Amino methane, or ink-jet given in the 1st paragraph for ink.
  5. 5
    content of the above-mentioned color material (mass %) as opposed to all the ink mass -- 3. 0 mass % You -- many and baby square it was obtained by the X-rays scattering-about method -- the color material of the above-mentioned ink for ink-jets -- dark -- Distributed distance of the molecular aggregate in the ink prepared so that a degree might become 0. 5 mass % Distributed distance d which occupies 75% of distribution 75 Ink for ink-jets given in any of Claim 1*4 or the 1st paragraph in which a value exceeds 7. 50 nm.
  6. 6
    content of the above-mentioned color material (mass %) as opposed to all the ink mass -- 3. 0 mass % You -- many and it was obtained by measuring Absorbance -- said ink for ink-jets -- 2000 times Any of Claim 1*4 whose maximal absorption wavelength in the diluted ink of more than 608. 0 nm (Amax) is less than 612. 0 nm, or ink-jet given in the 1st paragraph for ink. .
  7. 7
    Content of the above-mentioned color material (mass %) It is about 0. 5 mass % to all the ink mass. It exceeds and is less than 3. 0 mass %, and baby square it was obtained by the X-rays scattering-about method -- the color material of the above-mentioned ink for ink-jets -- dark -- Distributed distance of a molecular aggregate [ in / it prepares so that a degree may become 0. 5 mass %, and / It is, Inc. ] Distributed distance d which occupies 75% of distribution 75 Ink for ink-jets given in any of Claim 1*4 or the 1st paragraph in which a value exceeds 10.60 nm.
  8. 8
    Content of the above-mentioned color material (mass %) It is about 0. 5 mass % to all the ink mass. It exceeds and is less than 3. 0 mass %, it was obtained by measuring 'and Absorbance -- said ink for ink-jets -- 2000 times maximal absorption wavelength [ (Amax) ] in the diluted ink -- less than 608. Onm it is -- ink for ink-jets given in any of Claim 1*4, or the 1st paragraph.
  9. 9
    the process of breathing out ink with an inkjet method and recording on a recording medium -- an owner -- it sets to the ink jet recording method to carry out -- ink Jetz, wherein said Inc. is ink for ink Jeetsu ♪ given in any of Claim 1*8, or the 1st paragraph Recording method. ■ -
  10. 10
    1 0 it sets to the ink cartridge provided with the ink seat part which stores . ink -- ink for ink-jets with said Inc. given in any of Claim 1*8, or the 1st paragraph Ink power 1 ♪ ridge characterized by a certain thing.
  11. 11
    1 1 it sets to the recording unit provided with List 5 Do to the ink seat part which stores . ink, and the record for carrying out discharge of the ink -- the recording unit which makes it Special * for said Inc. to be ink for ink-jets given in any of Claim 1*8, or the 1st paragraph.
  12. 12
    1 2 . It is List to Ink Seat Part Which Stores Ink, and Record for Carrying Out Discharge of the Ink. In Ink-jet Recording Device Provided with Do, An in 10. Cuzette recorder which makes it Special * for said Inc. to be ink for ink-jets given in any of Claim 1*8, or the 1st paragraph. -