GB2610138A - Printing ink - Google Patents

Printing ink Download PDF

Info

Publication number
GB2610138A
GB2610138A GB2217778.6A GB202217778A GB2610138A GB 2610138 A GB2610138 A GB 2610138A GB 202217778 A GB202217778 A GB 202217778A GB 2610138 A GB2610138 A GB 2610138A
Authority
GB
United Kingdom
Prior art keywords
ink
black
inkjet
weight
inkjet ink
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
GB2217778.6A
Other versions
GB202217778D0 (en
Inventor
Runacre Angelique
Mcgregor Barry
Corfe Lee
Maisey Samantha
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujifilm Speciality Ink Systems Ltd
Original Assignee
Fujifilm Speciality Ink Systems Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujifilm Speciality Ink Systems Ltd filed Critical Fujifilm Speciality Ink Systems Ltd
Publication of GB202217778D0 publication Critical patent/GB202217778D0/en
Publication of GB2610138A publication Critical patent/GB2610138A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/30—Inkjet printing inks
    • C09D11/32—Inkjet printing inks characterised by colouring agents
    • C09D11/322—Pigment inks
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09B—ORGANIC DYES OR CLOSELY-RELATED COMPOUNDS FOR PRODUCING DYES, e.g. PIGMENTS; MORDANTS; LAKES
    • C09B67/00—Influencing the physical, e.g. the dyeing or printing properties of dyestuffs without chemical reactions, e.g. by treating with solvents grinding or grinding assistants, coating of pigments or dyes; Process features in the making of dyestuff preparations; Dyestuff preparations of a special physical nature, e.g. tablets, films
    • C09B67/0033—Blends of pigments; Mixtured crystals; Solid solutions
    • C—CHEMISTRY; METALLURGY
    • C09—DYES; PAINTS; POLISHES; NATURAL RESINS; ADHESIVES; COMPOSITIONS NOT OTHERWISE PROVIDED FOR; APPLICATIONS OF MATERIALS NOT OTHERWISE PROVIDED FOR
    • C09D—COATING COMPOSITIONS, e.g. PAINTS, VARNISHES OR LACQUERS; FILLING PASTES; CHEMICAL PAINT OR INK REMOVERS; INKS; CORRECTING FLUIDS; WOODSTAINS; PASTES OR SOLIDS FOR COLOURING OR PRINTING; USE OF MATERIALS THEREFOR
    • C09D11/00—Inks
    • C09D11/02—Printing inks
    • C09D11/10—Printing inks based on artificial resins
    • C09D11/101—Inks specially adapted for printing processes involving curing by wave energy or particle radiation, e.g. with UV-curing following the printing

Abstract

The present invention provides a black inkjet ink comprising a radiation-curable monomer and less than 2.0% by weight of carbon black, based on the total weight of the ink, wherein the ink further comprises two or more non-black pigments which in combination provide a black colour, wherein the ink has an L* value of 0 to 40, an a* value of -20 to +20, and a b* value of -20 to +20, and wherein the ink has a viscosity of 1 to 40 mPas at 25°C. The present invention also provides a method of inkjet printing comprising inkjet printing the ink of the present invention onto a substrate and curing the ink by exposing the printed ink to a curing source.

Claims (15)

Claims
1. A black inkjet ink comprising a radiation-curable monomer and less than 2.0% by weight of carbon black, based on the total weight of the ink, wherein the ink further comprises two or more non-black pigments which in combination provide a black colour, wherein the ink has an L* value of 0 to 40, an a* value of -20 to +20, and a b* value of -20 to +20, and wherein the ink has a viscosity of 1 to 40 mPas at 25°C.
2. An inkjet ink as claimed in claim 1 , wherein the two or more non-black pigments are selected from cyan, magenta, yellow, blue, brown, green, orange, red, violet and white.
3. An inkjet ink as claimed in claims 1 or 2, wherein the ink comprises three or more non-black pigments which in combination provide the black colour.
4. An inkjet ink as claimed in claim 3, wherein the three or more non-black pigments are selected from cyan, magenta and yellow, yellow, cyan and violet, yellow, green and violet, yellow, blue and orange, green, orange and violet, red, cyan and yellow, and red, green and blue.
5. An inkjet ink as claimed in any preceding claim, wherein each non-black pigment is present in the inkjet ink at 0.5 to 6% by weight, based on the total weight of the ink.
6. An inkjet ink as claimed in any preceding claim, wherein the ink comprises less than 0.8% by weight of carbon black, based on the total weight of the ink, and is preferably substantially free of carbon black.
7. An inkjet ink as claimed in any preceding claim, wherein the ink comprises less than 2.0% by weight in total, preferably less than 0.8% by weight in total, of black pigment, based on the total weight of the ink.
8. An inkjet ink as claimed in any preceding claim, wherein the ink comprises less than 5% by weight of water and volatile organic solvents combined, based on the total weight of the ink
9. An inkjet ink as claimed in any preceding claim, wherein the ink has a reflective density of 0 to 3 and/or a surface tension of 18 to 40 dynes/cm at 25°C.
10. An inkjet ink as claimed in any preceding claim, wherein the radiation-curable monomer comprises a di- and/or multifunctional monomer.
11. An inkjet ink as claimed in any preceding claim, wherein the radiation-curable monomer is a (meth)acrylate monomer.
12. A method of inkjet printing comprising inkjet printing the ink as claimed in any preceding claim onto a substrate and curing the ink by exposing the printed ink to a curing source .
13. A method of inkjet printing as claimed in claim 11 , wherein the curing source is a source of actinic radiation and/or a source of low-energy electron beam radiation.
14. Use of two or more, preferably three or more, non-black pigments to enhance a black colour of an inkjet ink.
15. Use of two or more, preferably three or more, non-black pigments to enhance a black colour of an inkjet ink as claimed in claims 1 to 11 .
GB2217778.6A 2020-05-04 2021-05-04 Printing ink Pending GB2610138A (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
GBGB2006554.6A GB202006554D0 (en) 2020-05-04 2020-05-04 Printing ink
PCT/GB2021/051059 WO2021224598A1 (en) 2020-05-04 2021-05-04 Printing ink

Publications (2)

Publication Number Publication Date
GB202217778D0 GB202217778D0 (en) 2023-01-11
GB2610138A true GB2610138A (en) 2023-02-22

Family

ID=71080552

Family Applications (2)

Application Number Title Priority Date Filing Date
GBGB2006554.6A Ceased GB202006554D0 (en) 2020-05-04 2020-05-04 Printing ink
GB2217778.6A Pending GB2610138A (en) 2020-05-04 2021-05-04 Printing ink

Family Applications Before (1)

Application Number Title Priority Date Filing Date
GBGB2006554.6A Ceased GB202006554D0 (en) 2020-05-04 2020-05-04 Printing ink

Country Status (2)

Country Link
GB (2) GB202006554D0 (en)
WO (1) WO2021224598A1 (en)

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998006788A1 (en) * 1996-08-16 1998-02-19 Rexam Graphics Inc. Black ink jet ink composition
US20120302658A1 (en) * 2011-05-27 2012-11-29 Xerox Corporation Black ultraviolet curable inks
EP2868721A1 (en) * 2013-10-29 2015-05-06 Agfa Graphics N.V. Radiation curable brown inkjet ink
JP2020029503A (en) * 2018-08-22 2020-02-27 花王株式会社 Aqueous composite black ink

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US8801165B2 (en) 2009-08-21 2014-08-12 Sericol Limited Printing ink, apparatus and method

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1998006788A1 (en) * 1996-08-16 1998-02-19 Rexam Graphics Inc. Black ink jet ink composition
US20120302658A1 (en) * 2011-05-27 2012-11-29 Xerox Corporation Black ultraviolet curable inks
EP2868721A1 (en) * 2013-10-29 2015-05-06 Agfa Graphics N.V. Radiation curable brown inkjet ink
JP2020029503A (en) * 2018-08-22 2020-02-27 花王株式会社 Aqueous composite black ink

Also Published As

Publication number Publication date
WO2021224598A1 (en) 2021-11-11
GB202006554D0 (en) 2020-06-17
GB202217778D0 (en) 2023-01-11

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