| 摘要 |
<P>PROBLEM TO BE SOLVED: To provide a black-colored natural leather whose temperature hardly rises even under an irradiation of an infrared ray for a long period. <P>SOLUTION: This natural leather is a natural leather produced by staining a natural leather with a specific black azo-based acidic dye in which the black dye is any one selected from (1) SELLA_SET_BLACK_BR, (2) SELLA_SET_BLACK_BR, LURAZOL_SN and ENIVEL_NT, SELLA_COOL_BLACK, (3) (3-[ethyl[4-[4-[3-(sodiosulfophenyl)azo]-1-naphthalenylazo]phenyl]aminomethyl]benzenesulfonic acid sodium salt) and (4) SELLA_FAST_BLACK_FN, and which has a coating layer containing a mixed-color pigment playing a role as a black color and formed from a perylene-based pigment or pigments of at least three or more colors as the pigment. <P>COPYRIGHT: (C)2010,JPO&INPIT |
