Water-based paint, ceramics, and method of decoration
AssigneesEhime Prefecture, Daio Paper Corporation
InventorsKenji Nakamura, Toshihiro Iwai, Junya Okawa
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Abstract
Ceramics are capable of reducing color irregularities and uneven coating, hard to dissolve into glaze, and excellent in fixation. A water-based paint contains a coloring material, first cellulose nanofibers having a lignin content of 20 to 40 mass % and a water retention of 150 to 300%, and second cellulose nanofibers having a higher viscosity compared to the first cellulose nanofibers, and the water-based paint has a B-type viscosity of 600 cps or higher. Ceramic ware or glassware or the like having painting made on a green body of which surface is formed of silicic acid or silicate compound as a main component, with the water-based paint.
Claims3
A water-based paint comprising:
- a coloring base material;
- first cellulose nanofibers having a lignin content of 20 to 40 mass % and a water retention of 150 to 300%;
- and
- second cellulose nanofibers made from chemical pulp and having a higher B-type viscosity compared to the first cellulose nanofibers, as measured in a form of an aqueous dispersion of cellulose nanofibers at 1% solid concentration,
- wherein the water-based paint has a B-type viscosity of 600 cps or higher, and
- wherein a mass ratio of the first cellulose nanofibers to the second cellulose nanofibers ranges from 99:1 to 51:49.
Dependencies are inferred from the claim text.