Natural marble coloring method

Application Number: 00116802
Application Date: 2000.06.27
Publication Number: 1278489
Publication Date: 2001.01.03
Priority Information:
International: C04B41/00
Applicant(s) Name: Zonglin Industry Co., Ltd. Shanghai
Inventor(s) Name: Yan Zhonglin
Patent Agency Code: 31113
Patent Agent: chen zhiliang
Abstract The method for changing colour of material marble is characterized by that it adopts heating treatment process, in which heating temp. is 380 deg.C-450deg.C, heat-insulating time is 3-5 hr, after heat insulation the heating process is stopped, then natrually cooled in air to implement colour change of hard stone. After the colour of marble is changed, the gloss and hardness of marble are not damaged, the decorative artistry of marble can be greatly raised, and the grade of marble commodity also is raised.