Ink set, liquid discharge apparatus, and liquid discharge method
OwnerHiroki KOBAYASHI, Tomohiro NAKAGAWA +1inventors
InventorsHiroki KOBAYASHI, Tomohiro NAKAGAWA, Daiki HYAKUTAKE
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Abstract
An ink set for fabric printing is provided that includes an aqueous ink and a pretreatment liquid. The aqueous ink includes a pigment. The pretreatment liquid includes an organic acid and an amino-modified silicone. The organic acid has a pKa at 25° C. of 2.5 or more and less than 5.0, and a content of the organic acid in the pretreatment liquid is 5% by mass or more and 20% by mass or less. A content of the amino-modified silicone in the pretreatment liquid is 1% by mass or more and less than 15% by mass.
Claims15
An ink set for fabric printing, the ink set comprising:
- an aqueous ink including a pigment;
- and
- a pretreatment liquid including:
- an organic acid having a pKa at 25° C. of 2.5 or more and less than 5.0, a content of the organic acid in the pretreatment liquid being 5% by mass or more and 20% by mass or less;
- and
- an amino-modified silicone, a content of the amino-modified silicone in the pretreatment liquid being 1% by mass or more and less than 15% by mass.
A liquid discharge apparatus comprising:
- a first discharge unit containing a pretreatment liquid to discharge the pretreatment liquid onto a fabric, the pretreatment liquid including:
- an organic acid having a pKa at 25° C. of 2.5 or more and less than 5.0, a content of the organic acid in the pretreatment liquid being 5% by mass or more and 20% by mass or less;
- and
- an amino-modified silicone, a content of the amino-modified silicone in the pretreatment liquid being 1% by mass or more and less than 15% by mass;
- and
- a second discharge unit containing an aqueous ink to discharge the aqueous ink onto the fabric, the aqueous ink including a pigment.
A liquid discharge method comprising:
- discharging a pretreatment liquid onto a fabric, the pretreatment liquid including:
- an organic acid having a pKa at 25° C. of 2.5 or more and less than 5.0, a content of the organic acid in the pretreatment liquid being 5% by mass or more and 20% by mass or less;
- and
- an amino-modified silicone, a content of the amino-modified silicone in the pretreatment liquid being 1% by mass or more and less than 15% by mass;
- and
- discharging an aqueous ink onto the fabric, the aqueous ink including a pigment.
Dependencies are inferred from the claim text.