Gouache pigments: earth yellow, earth red, ochre, orange yellow, medium yellow, light yellow, olive green, pink green, ultramarine blue, cobalt blue, lake blue, crimson, rose red, violet, lemon yellow, rose red and violet.
Gouache pigments are mostly opaque and consist of powdery materials, which are fixed with glue and have strong coverage. So when you draw gouache, you often start with the darkest color.
Gouache pigments can be covered layer by layer. If you are patient, you can draw the same effect as an oil painting, but the color of the pigment is darker when wet and lighter when dry. Gouache paints are very fine in color particles, which are beautiful after being dissolved in water, but they cannot cover the background color. The colors of ultramarine, ochre and earth red in watercolor pigments belong to mineral pigments, which are easy to precipitate when used alone or mixed with other colors.
Extended data:
Pigments usually have the following characteristics:
1, color. Color pigment is a kind of pigment that selectively absorbs and scatters visible light energy, and can
It appears yellow, red, blue and green in natural light.
2. Coloring ability. The ability of colored pigments to absorb incident light. It can be expressed as a relative percentage of the coloring power of standard pigment samples.
3, hiding power. The ability of film-forming substances to cover the surface color of substrates. The color paint commonly used to cover 1 square meter contains grams of pigment.
4. Light resistance. The ability of a pigment to retain its original color under certain illumination. Generally, the eight-level system is adopted, and eight is the best.
5. Weather resistance. The ability of pigments to maintain their original properties under certain natural or artificial climatic conditions. Generally, a five-level system is adopted, with five being the best.
6. Volatiles. Mainly refers to the moisture, generally not more than 65438 0%.
7. oil absorption. Refers to the grams of refined linseed oil required for100g pigment to form a uniform block, and the oil absorption is the best, which is related to the specific surface area and structure of pigment particles.
8. Water-soluble substances. The water-soluble substances contained in the pigment are expressed by the mass percentage of the pigment. The water-soluble substances of paint pigments are often controlled below 65438 0%.
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