发明名称 UNBURNED COLOR PENCIL LEAD
摘要 PROBLEM TO BE SOLVED: To provide unburned color pencil lead having high strength of lead body and having golden gloss and vividness in the handwriting. SOLUTION: This unburned color pencil lead comprises at least binder, scaly bronze powder and an yellow-based organic pigment. In the unburned color pencil lead, the content of the scaly bronze powder is 30-70 wt.% and the average particle diameter of the powder is 3-30μm and the content of the yellow- based organic pigment is 1-15 wt.% based on the scaly bronze powder.
申请公布号 JP2003041177(A) 申请公布日期 2003.02.13
申请号 JP20010232900 申请日期 2001.07.31
申请人 PENTEL CORP 发明人 TANGE MAKOTO
分类号 C09D13/00;(IPC1-7):C09D13/00 主分类号 C09D13/00
代理机构 代理人
主权项
地址