Hot melt ink
AssigneeOce-Technologies B.V.
InventorsPeter M. A. Wetjens, Kim C. Jansen, Robin X. E. Willemse, Jacobus G. Van Enckevort
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Abstract
Disclosed is a hot melt ink composition containing a substantially non-aqueous carrier composition; at least one dye which comprises at least one salt of the anthrapyridone series; and an organic sulfonic acid compound. Also disclosed is a method of preparing the hot melt ink composition.
Claims16
A hot melt ink composition, comprising:
- a substantially non-aqueous carrier composition;
- at least one dye which comprises at least one salt of the anthrapyridone series;
- and
- an organic sulfonic acid compound.
A method for preparing a hot melt ink composition, the ink comprising a substantially non-aqueous carrier composition and at least one dye which comprises at least one salt of the anthrapyridone series and an organic sulfonic acid compound, the method comprising the steps of:
- providing the non-aqueous carrier composition, the dye and the organic sulfonic acid compound;
- heating the non-aqueous carrier composition, the dye and the organic sulfonic acid compound until the non-aqueous carrier composition has melted and the dye and the organic sulfonic acid compound have dissolved in the non-aqueous carrier composition;
- stirring the non-aqueous carrier composition, the dye and the organic sulfonic acid compound until a homogeneous mixture is obtained.
Dependencies are inferred from the claim text.