The raw material for granulation is that pigment has been mixed into the raw material, and each plastic material has been colored, so the color of the molded product is stable and uniform. The color powder material and color seed material are made by mixing color seeds or color powder to make them reach the specified color.
Propylene pigment is a synthetic polymer pigment, which was invented in 1950s and made of pigment powder and acrylic latex. Acrylic latex is also called acrylic polymer latex. There are many kinds of propylene resins, such as methacrylic resin and propylene pigments.
Extended data:
Characteristics of gouache:
The limitation of water pink purity and lightness. When gouache pigment is wet, its color saturation is as high as that of oil painting pigment, but when it is dry, its saturation is greatly reduced and its color loses luster due to the action of powder, which is the limit of its color purity. The improvement of gouache brightness is achieved by diluting, adding powder or using more powdery pigments to lighten the color.
Its wet and dry changes are very great, and often some colors only add a little powder. When it is dry and wet, its brightness shows a deep or shallow difference, which is the dry-wet reaction of gouache pigment. Because the color of gouache after drying is generally light, it is the most difficult problem to solve in gouache painting technology to use gouache well.
The color containing powder makes the color of the picture full of the unique "powder" quality of gouache, with a particularly rich intermediate color, but the color fineness of gouache is still far lower than that of oil painting.
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