# US 10,246,597 B2 · Oil-based recording liquid

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- Number: US 10,246,597 B2
- Document ID: US10246597B2
- Status: Granted
- Kind: B2
- Application number: 15/338,788
- Filed: 2016-10-31
- Published: 2017-05-04
- Granted: 2019-04-02
- Earliest claimed: 2015-11-02
- Assignees: Seiko Epson Corporation
- Applicants: Seiko Epson Corporation
- Inventors: Shigemi Wakabayashi
- Web page: https://patentgrep.com/patent/US10246597B2

## CPC

- C09D 11/36: based on non-aqueous solvents
- C09D 11/322: Pigment inks
- C09D 11/328: characterised by dyes
- C09D 11/38: characterised by non-macromolecular additives other than solvents, pigments or dyes
- 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 (cosmetics A61K; processes for applying liquids or other fluent materials to surfaces, in general, B05D; staining wood B27K5/02; glazes or vitreous enamels C03C; natural resins, French polish, drying-oils, driers, turpentine, per se, C09F; polishing compositions other than French polish, ski waxes C09G; adhesives or use of materials as adhesives C09J; materials for sealing or packing joints or covers C09K3/10; materials for stopping leaks C09K3/12; processes for the electrolytic or electrophoretic production of coatings C25D)

## Abstract

An oil-based recording liquid according to the invention includes a color material and an oil-based medium, the oil-based medium contains a first organic medium having an SP value of 9.5 or more and an iodine value of 120 or more, and the content of the first organic medium is 50 percent by mass or more, or the oil-based medium contains an allyl compound.

## Claims

### Claim 1

An oil-based recording liquid, comprising:
a color material; and
an oil-based medium,
wherein the oil-based medium contains a first organic medium having an SP value of 9.5 or more and an iodine value of 120 or more,
the content of the first organic medium is 50 percent by mass or more, and
the content of a second organic medium having an SP value of 9.0 or less and an iodine value of 100 or less, in the oil-based recording liquid is 30 percent by mass or less.

### Claim 2 (depends on 1)

The oil-based recording liquid according to claim 1,
further comprising at least one type of drier selected from the group consisting of a metal soap and a metal complex.

### Claim 3 (depends on 2)

The oil-based recording liquid according to claim 2,
wherein a metal of the metal soap or the metal complex is at least one selected from the group consisting of Co, Mn, Pb, Zr, Ca, Ba, K, and Fe.

### Claim 4 (depends on 1)

The oil-based recording liquid according to claim 1,
wherein the oil-based medium further contains a dry oil.

### Claim 5 (depends on 1)

The oil-based recording liquid according to claim 1,
wherein the oil-based recording liquid is used for ink jet recording.

### Claim 6

An oil-based recording liquid, comprising:
a color material; and
an oil-based medium;
wherein the oil-based medium contains an allyl compound and a dry oil,
wherein the allyl compound is a compound represented by the following formula (1)
wherein in the formula (1), R1 and R2 each independently represent an alkyl chain having 1 to 3 carbon atoms, Xn represents hydrogen, a hydroxyl group, an alkyl group having 1 to 6 carbon atoms, an alkylol group having 1 to 3 carbon atoms, or an allylalkoxy alkyl group represented by a formula (2),
m represents an integer of 1 to 3, and n represents an integer which satisfies m+n=4, and
R3 and R4 each independently represent an alkyl chain having 1 to 3 carbon atoms.

### Claim 7 (depends on 6)

The oil-based recording liquid according to claim 6,
further comprising at least one type of drier selected from the group consisting of a metal soap and a metal complex.

### Claim 8 (depends on 6)

The oil-based recording liquid according to claim 6,
wherein the oil-based recording liquid is used for ink jet recording.