What are the types of watercolor pens?
Monochrome watercolor pen
Monochrome watercolor pen consists of pen holder, nib and refill. The refill is filled with colored water of one color.
Two-color watercolor pen
A two-color watercolor pen consists of a pen holder, a nib and a refill. Its nib is divided into two parts, which can be a paired structure or a nested structure. Correspondingly, the refill is also divided into two parts, which can also be a matching structure or a nested structure. The two-part refill is filled with colored water of two different colors. The two-color watercolor pen has a simple structure, and the strokes written have two completely different colors at the same time, so that the font has a three-dimensional effect, which can be suitable for writing artistic figures and artistic decorations, and can also be suitable for children to practice calligraphy and improve their interest in practicing calligraphy.
Multicolor watercolor pen
Multicolor watercolor pen is to embed three or more refills into the through hole of the pen head mold according to the design requirements, and inject plastic resin into the whole with an injection molding machine. Fix the winding core tightly covering the isolation cover in the pen holder with a gasket, embed the corrected nib into the pen neck end of the pen holder, insert the refill into the winding core through the through hole on the gasket to absorb ink, seal the back cover with the pen holder and the refill with an adhesive to prevent color mixing, and install a color matching ring at the pen neck end. When a plurality of pen cores are combined in a pen tip, different colors can be written separately, and there will be no cross-color and mixed color when placed, which is suitable for mechanized mass production for artists to paint and teachers to give lectures.
Matters needing attention in buying crayons and watercolor pens
Lead is a soft heavy metal and is often used as a pigment. If children use inferior crayons and watercolor pens with excessive lead for a long time, it will lead to lead poisoning and seriously endanger their health. Remind students and parents to pay attention to the following points when buying and using crayons and watercolor pens:
Try to choose products produced by well-known domestic brand manufacturers and buy them in regular shopping malls and shops, not from stalls or informal channels.
Usually, the labels of qualified products are printed clearly, and the production date or batch number, product standard number, production address, contact information and warning words are marked completely and obviously, while the labels of inferior products are often vague and incomplete due to cost and technical restrictions.
Open it and smell it when you buy it. Many inferior products have obvious pungent smell, or an unusually rich fragrance produced by adding a lot of inferior essence to cover up the pungent smell.
In addition, when children use painting products, parents should remind their children not to tear off the paper cover of crayons and draw directly with sticks; Don't bite or suck pens and fingers. Wash your hands in time after eating with crayons and watercolors to avoid eating lead in your stomach.