What's the difference between poster color and watercolor and gouache?

1. The advertisement painting pigment is gouache pigment. Gouache pigments are mostly transparent 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. You can cover it layer by layer. If you are patient, you can get the same effect as oil painting, but the color of the pigment is darker when wet and lighter when dry. There are also purplish colors such as rose red and violet, which are easy to turn out. So don't use it as a primer. Gouache paint particles are very washable, and the color is beautiful after being dissolved in water, but it can't 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.

2. Watercolor is another matter. Watercolor and gouache are unique in that they are both water-based pigments, which are mixed with water and painted on paper. However, watercolor is a transparent pigment with high transparency and slightly larger glue, which is suitable for transparent painting and not suitable for large-scale operation. Gouache pigment has strong coverage and is suitable for thick coating and posters. Watercolor pigments. High transparency, when the colors overlap, the following colors will pass. The color is not as bright as colored ink, but it is very dark, suitable for people who like quaint colors. It is not easy to change color even if it is stored for a long time.

3. Compared with oil painting pigments, propylene pigments have the following characteristics: (1) can be diluted with water, which is beneficial to cleaning. ② Quick drying. Pigment can be dried within a few minutes after putting pen to paper, and there is no need to wait for months to polish it like oil painting. Painters who like slow-drying pigments can use retarders to delay the drying time of pigments. (3) When the colored layer is dried, it will quickly lose its solubility and form a tough, elastic and impermeable film. This film is similar to glue. (4) The color is full, dense and fresh, and it will not feel "dirty" or "gray" no matter how it is blended. The colored layer will never absorb oil and get dirty. (5) The work has long durability. The oil film in oil painting is easy to oxidize, yellow and harden for a long time, and it is easy to crack the picture. Theoretically, acrylic films will never become brittle or yellow. (6) The biggest difference between acrylic pigment and oil painting is that it has the operational characteristics of general water-based pigment, which can be used as both watercolor and gouache. (7) There are particles, coarse particles and fine particles in the acrylic plastic paste, which provides convenience for making textures. (8) Propylene pigment is slightly toxic, but it will not cause harm to human body. Just be careful not to eat wrong. (9) Acrylic pigments can be used to design cultural shirts and draw personalized shoes, which can highlight individual personality. But it is best to use cotton clothes and shoes. It is white. It is best to draw with a pencil as the base.