| 摘要 |
PURPOSE: A removable solid marker with erasability and water solubility is provided to ensure good coating properties, to avoid the scattering of dust in the removal, and to enable the removal without marks. CONSTITUTION: A removable solid marker with erasability and water solubility comprises 10~50 weight% of wax, 5~40 weight% of nonionic surfactants, 5~50 weight% of sieved pigment, 5~30 weight% of release agents, and 1~50 weight% of coloring agents. The wax is ketone wax, Fisher-Tropsch wax or combination thereof. The ketone wax is one selected from stearic acids, myristic acids, and palmitic acids. The nonionic surfactant is a liquid phase at room temperature and has HLB value of 8~13. The nonionic surfactant is polyoxyethylene alkyl ether, polyoxyethylene alkyl ester, or combination thereof. |
