Purple pigments are derived from various sources and combined with binders to create paint. Common sources and binder details include:
**Sources of Purple Pigments:**
1. **Ultramarine Violet:** Ultramarine violet is a synthetic purple pigment created through the same process as ultramarine blue but with a different mineral component.
2. **Dioxazine Purple:** Dioxazine purple is a synthetic organic pigment known for its vibrant purple hue. It is used in modern paints.
3. **Cobalt Violet:** Cobalt violet is a lightfast purple pigment produced from cobalt salts.
**Binders in Paint:**
The binder in paint serves to hold the pigment particles together and adhere them to surfaces. Different types of paint use distinct binders:
1. **Oil Paint:** Linseed oil is commonly used as the binder for oil paint. Other oils, like walnut oil or safflower oil, can also be used. Oil paint dries or cures over time, allowing it to harden and providing artists with extended working time due to its slow drying time.
2. **Acrylic Paint:** Acrylic paint uses an acrylic polymer emulsion as the binder. The polymer particles suspend the pigment and form a film as the water in the emulsion evaporates. Acrylic paint dries quickly and is water-resistant when dry, making it versatile and compatible with various surfaces.
3. **Watercolor Paint:** Gum arabic serves as the binder for watercolor paint. Gum arabic is a natural water-soluble resin that suspends pigment particles in water. As watercolor is applied to paper, the water evaporates, leaving behind the pigment on the surface. Watercolor paint is transparent and relies on the white of the paper for highlights.
4. **Gouache Paint:** Gouache is similar to watercolor but includes a white pigment to make it more opaque. It uses gum arabic as the binder, and the paint dries to a matte, water-soluble finish, providing both transparent and opaque effects.
To create paint, the chosen purple pigment and binder are mixed together to form a consistent and usable paint. This process involves careful grinding, mixing, and quality control to ensure that the pigment is well-distributed and the paint is consistent in color and texture. Different manufacturers may have proprietary methods and formulations for creating their specific paints. The choice of binder and pigment can significantly affect various properties of the paint, including drying time, texture, transparency, and colorfastness. Manufacturers carefully balance these components to produce paints with desired characteristics for artists and various applications.
Challenge: Paint a painting using many shades of Purple. The more you practice the better you'll get.