公开(公告)号：JPS60112709A

公开(公告)日：1985-06-19

申请号：JP22024783

申请日：1983-11-22

Applicant: KAO CORP

Inventor： KATOU SEIYA ,  YAMAMOTO YUUZOU ,  WAKASA MASANOBU

IPC: A61K8/19 ,  A61K8/18 ,  A61K8/26 ,  A61Q1/00 ,  A61Q1/02 ,  A61Q1/04 ,  A61Q1/10 ,  A61Q1/12 ,  A61Q3/02

Abstract: PURPOSE:To provide a cosmetic free from the trouble with sweat and oil, etc., and giving a clear color tone, by using a composite alumina pigment having excellent water resistance, solvent resistance, oxidation resistance, light resistance and stability and obtained by including a pigment in porous alumina. CONSTITUTION:The objective cosmetic contains a composite alumina pigment having a particle diameter of 0.05-100mu and containing a pigment (preferably an acid dye) included in porous alumina. The porous alumina can be produced by (1) oxidizing Al (preferably an Al foil of 1-1,000mum thick) electrochemically in an electrolyte such as an aqueous solution of sulfuric acid at a constant voltage of 1-300V or a constant current density of 1-200mA/cm at 0-60 deg.C, to form an alumina layer having a number of uniform columnar pores having a diameter of 1mmu-1mu, (2) peeling the alumina layer from the Al foil and pulverizing the alumina, and (3) contacting the powder with a 0.5-25wt% solution of the pigment. Since the pigment in the cosmetic is included completely in the alumina, the irritation of the skin caused by the direct contact of the dye can be prevented, and the cosmetic has great color flexibility.

公开(公告)号：JPS5992911A

公开(公告)日：1984-05-29

申请号：JP20335382

申请日：1982-11-19

Applicant: KAO CORP

Inventor： HAISHI TOMOYUKI ,  TAKEDA TSUNESHI ,  WAKASA MASANOBU ,  SASA YOSHIMASA ,  FUJITA TADAAKI ,  MAEDA TOSHIJI

IPC: C11D3/12 ,  C01B39/16

Abstract: PURPOSE:To prepare a crystalline aluminosilicate having excellent fluidity, etc., and suitable as a builder of detergent, etc., by mixing a concentrated aqueous solution of sodium aluminate with an aqueous solution of sodium silicate at a specific ratio, and subjecting the mixture to hydrothermal crystallization. CONSTITUTION:A concentrated aqueous solution of sodium aluminate having a concentration of 30-70wt% is mixed with a concentrated aqueous solution of sodium silicate having a concentration of 35-50wt% to obtain a mixed solution having a composition of SiO2/Al2O3>=2, Na2O/Al2O3>2, (SiO2+Na2O)/Al2O3