2. Blank solution: This is a method used when it is difficult to leave a blank. Tools to be prepared are difficult to take out when colloidal particles dissolved in white glue roll into bristles, so in order not to damage the brush, the brush should be soaked with soap first. In order to coat the film conveniently, pour the white glue into a small dish and dilute it with water, then dip it in the solution with a pen.
3. Blank glue: Use blank glue with synthetic rubber as the component. The tool to be prepared is to squeeze the pen-shaped blank into a small plate. The composition of this blank rubber is not natural rubber, and it will not be rolled into the bristles, so soap is not needed. Although adding a small amount of water will not affect the effect, the blue color as a mark will become blurred, so it is best not to dilute it.
4. Draw a blank space with crayons or crayons: Draw a blank pattern with candles. When painting, the waxed part does not absorb water, so there will be patterns. Wax can't be removed, only left blank. Thinking more about the use of wax can form more effective techniques.
5, washing method: while tracing the shape, wash and dissolve the dry pigment. Continue to overlay different colors on the bottom pigment. When this bottom pigment is washed away, it will form a complex color effect. The pigment coated on the bottom layer dries easily. At this time, you can dip the brush in water to dissolve the background color, and then use cotton paper to absorb the pigment. After the pigment in the highlight is dissolved and washed away, the remaining pigment will be shaped into a beautiful shadow.