1, color-water ratio
The same color, the more water mixed, the more obvious the water mark will be.
2. The ratio of water to pigment is the same, and the drying speed may affect the watermark.
The faster it dries, the shallower the watermark. You can try using a hair dryer to relieve it.
3, in the case of the same proportion of water and pigment, the amount of water on the brush.
There is more water on the pen, and the water mark is obvious. If you wipe with a dry pen, it should make the water mark disappear.
Step 4 brush
For example, some natural brushes may have strong water absorption, and they are easy to get wet when painting, and there will be water marks. You can choose a non-absorbent nylon pen.
5. The speed of the pen.
If you draw slowly, there will be more water on the paper and watermarks will appear more easily. On the contrary, if you draw fast, there will be less water on the paper.
6. Paper problems
Like cotton pulp paper, it has strong water absorption and good diffusion, and the watermark will be shallow. Poor water absorption, poor diffusion, easy to produce water marks. Paper with the same material, smooth will be more prone to water marks than rough.
7. Painting method
Water marks are easy to appear when dry coating. When painting wet, wet the drawing paper. If you draw on it again, it will be difficult to form water droplets, and there will be no water marks.
If water marks have appeared, you can wait for the coating to dry before brushing a layer of water, and then blot it with a paper towel, and the water marks will fade. You can also gently wash off the water mark with a pen, or you can wait until the paper Zhang Jiucheng is dry before applying another layer. At this time, be careful not to touch the edge of the water mark painted for the first time, or wait for 50% to 60% to dry before painting with less water and thicker color, so as not to touch the water mark.
Watermark is an important part of watercolor painting, and how to grasp it well is the key, so we should grasp it well in watercolor training, and the necessary watermark can improve the grade of watercolor painting.