Coating processes – Direct application of electrical – magnetic – wave – or... – Polymerization of coating utilizing direct application of...
Reexamination Certificate
2002-02-13
2004-08-03
Sanders, Kriellion A. (Department: 1714)
Coating processes
Direct application of electrical, magnetic, wave, or...
Polymerization of coating utilizing direct application of...
C427S508000, C427S521000, C427S256000, C427S372200, C156S277000, C347S100000, C106S031860, C106S031870, C106S031900, C106S503000
Reexamination Certificate
active
06770331
ABSTRACT:
The present invention relates to novel colorant preparations comprising
A) at least one dispersed (A1) or dissolved (A2) colorant,
B) a dispersant in the case of a colorant (A1),
C) a low molecular weight polytetrahydrofuran (C1), if desired in mixture with one or more high-boiling water-soluble or -miscible organic solvents (C2), and
D) water
as essential constituents.
This invention further relates to the use of these colorant preparations as inks in the ink-jet process and to a process for printing sheetlike or three-dimensionally configured substrates by the ink-jet process using these colorant preparations.
Inks for use in the ink-jet process (such as Thermal Ink Jet, Piezo Ink Jet, Continuous Ink Jet, Valve Jet) have to meet a whole series of requirements. They have to have a viscosity and surface tension suitable for printing, they have to be stable in storage, i.e., they should not coagulate or flocculate, and they must not lead to cloggage of the printer nozzle, which can be problematical especially in the case of inks containing dispersed, i.e., undissolved, colorant particles. Stability in storage further requires of these inks that the dispersed colorant particles do not sediment. Finally, in the case of Continuous Ink Jet, the inks shall be stable to the addition of conducting salts and be free from any tendency to flock out with an increase in the ion content. In addition, the prints obtained have to meet colorists' requirements, i.e., show brilliance and depth of shade, and have good fastness properties, e.g., for example rubfastness, lightfastness, waterfastness and wetrubfastness, and good drying behavior.
WO-A-99/01516 discloses pigmented ink-jet inks which differ from the present colorant preparations because of component (C).
It is an object of the present invention to provide novel colorant preparations having advantageous application properties in the ink-jet process, including in particular good start-of-print and sustained use behavior with good drying behavior.
We have found that this object is achieved by the colorant preparations defined at the beginning.
Colorant preparations according to the invention may include essentially insoluble dispersed colorant (A1) (finely divided organic or inorganic pigments or dyes which are insoluble in the water/solvent mixture) or dissolved colorant (A2) (dyes which are soluble in the water/solvent mixture). Colorant preparations according to the invention may also include colorant mixtures, but preferably only one colorant is present. Pigment-based colorant preparations according to the invention are preferred. By way of brightening agents, these pigment preparations may include dyes, especially direct, acid or reactive dyes, that are similar in hue to the pigment.
There now follow examples of useful pigments (A1), vat dyes being included among the organic pigments on account of the overlap with organic pigments.
Organic Pigments:
monoazo pigments: C.I. Pigment Brown 25;
C.I. Pigment Orange 5, 13, 36 and 67;
C.I. Pigment Red 1, 2, 3, 5, 8, 9, 12, 17, 22, 23, 31, 48:1, 48:2, 48:3, 48:4, 49, 49:1, 52:1, 52:2, 53, 53:1, 53:3, 57:1, 63, 112, 146, 170, 184, 210, 245 and 251;
C.I. Pigment Yellow 1, 3, 73, 74, 65, 97, 151 and 183;
disazo pigments: C.I. Pigment Orange 16, 34 and 44;
C.I. Pigment Red 144, 166, 214 and 242;
C.I. Pigment Yellow 12, 13, 14, 16, 17, 81, 83, 106, 113, 126, 127, 155, 174, 176 and 188;
anthanthrone pigments: C.I. Pigment Red 168 (C.I. Vat Orange 3);
anthraquinone pigments: C.I. Pigment Yellow 147 and 177;
C.I. Pigment Violet 31;
anthrapyrimidine pigments: C.I. Pigment Yellow 108 (C.I. Vat Yellow 20);
quinacridone pigments: C.I. Pigment Red 122, 202 and 206;
C.I. Pigment Violet 19;
quinophthalone pigments: C.I. Pigment Yellow 138;
dioxazine pigments: C.I. Pigment Violet 23 and 37;
flavanthrone pigments: C.I. Pigment Yellow 24 (C.I. Vat Yellow 1);
indanthrone pigments: C.I. Pigment Blue 60 (C.I. Vat Blue 4) and 64 (C.I. Vat Blue 6);
isoindoline pigments: C.I. Pigment Orange 69;
C.I. Pigment Red 260;
C.I. Pigment Yellow 139 and 185;
isoindolinone pigments: C.I. Pigment Orange 61;
C.I. Pigment Red 257 and 260;
C.I. Pigment Yellow 109, 110, 173 and 185;
isoviolanthrone pigments: C.I. Pigment Violet 31 (C.I. Vat Violet 1);
metal complex pigments: C.I. Pigment Yellow 117, 150 and 153;
C.I. Pigment Green 8;
perinone pigments: C.I. Pigment Orange 43 (C.I. Vat Orange 7);
C.I. Pigment Red 194 (C.I. Vat Red 15);
perylene pigments: C.I. Pigment Black 31 and 32;
C.I. Pigment Red 123, 149, 178, 179 (C.I. Vat Red 23), 190 (C.I. Vat Red 29) and 224;
C.I. Pigment Violet 29;
phthalocyanine pigments: C.I. Pigment Blue 15, 15:1, 15:2, 15:3, 15:4, 15:6 and 16;
C.I. Pigment Green 7 and 36;
pyranthrone pigments: C.I. Pigment Orange 51;
C.I. Pigment Red 216 (C.I. Vat Orange 4);
thioindigo pigments: C.I. Pigment Red 88 and 181 (C.I. Vat Red 1);
C.I. Pigment Violet 38 (C.I. Vat Violet 3);
triarylcarbonium pigments: C.I. Pigment Blue 1, 61 and 62;
C.I. Pigment Green 1;
C.I. Pigment Red 81, 81:1 and 169;
C.I. Pigment Violet 1, 2, 3 and 27;
C.I. Pigment Black 1 (aniline black);
C.I. Pigment Yellow 101 (aldazine yellow);
C.I. Pigment Brown 22;
vat dyes (in addition to those already mentioned above):
C.I. Vat Yellow 2, 3, 4, 5, 9, 10, 12, 22, 26, 33, 37, 46, 48, 49 and 50;
C.I. Vat Orange 1, 2, 5, 9, 11, 13, 15, 19, 26, 29, 30 and 31;
C.I. Vat Red 2, 10, 12, 13, 14, 16, 19, 21, 31, 32, 37, 41, 51, 52 and 61;
C.I. Vat Violet 2, 9, 13, 14, 15, 17 and 21;
C.I. Vat Blue 1 (C.I. Pigment Blue 66), 3, 5, 10, 12, 13, 14, 16, 17, 18, 19, 20, 22, 25, 26, 29, 30, 31, 35, 41, 42, 43, 64, 65, 66, 72 and 74;
C.I. Vat Green 1, 2, 3, 5, 7, 8, 9, 13, 14, 17, 26, 29, 30, 31, 32, 33, 40, 42, 43, 44 and 49;
C.I. Vat Brown 1, 3, 4, 5, 6, 9, 11, 17, 25, 32, 33, 35, 38, 39, 41, 42, 44, 45, 49, 50, 55, 57, 68, 72, 73, 30, 81, 82, 83 and 84;
C.I. Vat Black 1, 2, 7, 8, 9, 13, 14, 16, 19, 20, 22, 25, 27, 28, 29, 30, 31, 32, 34, 36, 56, 57, 58, 63, 64 and 65;
Inorganic Pigments:
white pigments: titanium dioxide (C.I. Pigment White 6), zinc white, pigment grade zinc oxide; zinc sulfide, lithopone; lead white;
black pigments: iron oxide black (C.I. Pigment Black 11), iron manganese black, spinel black (C.I. Pigment Black 27); carbon black (C.I. Pigment Black 7);
color pigments: chromium oxide, chromium oxide hydrate green; chrome green (C.I. Pigment Green 48); cobalt green (C.I. Pigment Green 50); ultramarine green;
cobalt blue (C.I. Pigment Blue 28 and 36); ultramarine blue; iron blue (C.I. Pigment Blue 27); manganese blue;
ultramarine violet; cobalt violet, manganese violet;
iron oxide red (C.I. Pigment Red 101); cadmium sulfoselenide (C.I. Pigment Red 108); molybdate red (C.I. Pigment Red 104); ultramarine red;
iron oxide brown, mixed brown, spinel and corundum phases (C.I. Pigment Brown 24, 29 and 31), chrome orange;
iron oxide yellow (C.I. Pigment-Yellow 42); nickel titanium yellow (C.I. Pigment Yellow 53; C.I. Pigment Yellow 157 and 164); chrome titanium yellow; cadmium sulfide and cadmium zinc sulfide (C.I. Pigment Yellow 37 and 35); chrome yellow (C.I. Pigment Yellow 34), zinc yellow, alkaline earth metal chromates; Naples yellow; bismuth vanadate (C.I. Pigment Yellow 184);
interference pigments: metallic effect pigments based on coated metal platelets; pearl luster pigments based on mica platelets coated with metal oxide; liquid crystal pigments.
Preferred pigments in this context are monoazo pigments (especially laked BONS pigments, naphthol AS pigments), disazo pigments (especially diaryl yellow pigments, bisacetoacetanilide pigments, disazopyrazolone pigments), quinacridone pigments, quinophthalone pigments, perinone pigments, phthalocyanine pigments, triarylcarbonium pigments (alkali blue pigments, laked rhodamines, dye salts with complex anions), isoindoline pigments and carbon blacks.
Examples of particularly preferred pigments are specifically: C.I. Pigment Yellow 138, C.I. Pigment Red 122, C.I. Pigment Violet 19, C.I. Pigment Blue 15:3 and 15:4, C.I. Pigment Black 7, C.I. Pigment Orange 5, 38 and 43 and C.I. Pigment Green 7.
These pigm
Freche Mike
Freyberg Dieter
Mielke Manfred
Raulfs Friedrich-Wilhelm
Schlösser Ulrike
BASF - Aktiengesellschaft
Keil & Weinkauf
Sanders Kriellion A.
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