Knowledge

Jul 15, 2022

What categories of Mark Pen according to ink

The main ingredients are dyes, transgender alcohol, and resin. The ink tools are volatile. They should be used in good ventilation. After using, we need to cover the cap to stay away from the source o
Jul 10, 2022

Crayon manufacturing method

Crayons can be used to use casting method and extrusion method. Generally with 40%C16 ~ C18 fatty acids, 40%wax, 5%of various pigments and 15%filling materials. If the squeezing method is adopted, fil
Jul 05, 2022

What are the types of crayons

Crayon made of compressed chalk, pigment powder and adhesive. This kind of crayon is called colorful crayons. The traditional adhesive material is astragalus gum. When the adhesive material is linseed
Jun 30, 2022

What is crayons

Crayon is a pen made of paint in the wax. There are dozens of colors and paintings. Crayon has no penetration. It is fixed on the screen by adhesion. It is not suitable to use too smooth paper and pla
Jun 25, 2022

Classification of Gel Pen

Looking closely at this neutral pen, we will find that they are like a bullet. During the manufacturing process, we cut a original rod into a complete pen through metal cutting. Bullet type is suitabl

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