Abstract: A cable coating removal device which is configured to remove a coating of a core wire in an end portion of a cable, the coating removal device includes: a hollow rotation shaft including, at a front end of the hollow rotation shaft, a rotary type stripping head which is configured to strip off the coating; a cable holding mechanism which is configured to hold and fix the end portion of the cable in front of the stripping head such that the end portion of the cable W is aligned with an axis of the rotation shaft; cutters which are provided on the stripping head and are displaceable in a radial direction of the rotation shaft to cut the coating of the cable; and a suction mechanism which is configured to remove stripping wastes of the coating generated by the cutters through a hollow portion of the rotation shaft.

Abstract: The invention has for its object to provide a water-soluble phthalocyanine dye unlikely to lose its own properties even upon dissolved in a concentration as high as 10?5 M. The inventive water-soluble phthalocyanine dye is characterized by having a sulfuric acid group or groups as an axial ligand or ligands of an antimony/phthalocyanine complex. The sulfuric acid group or groups have been introduced by replacing a part or the whole of hydroxyl groups in the starting material with a sulfuric acid group or groups.

Abstract: The invention has for its object to provide a water-soluble phthalocyanine dye unlikely to lose its own properties even upon dissolved in a concentration as high as 10?5 M. The inventive water-soluble phthalocyanine dye is characterized by having a sulfuric acid group or groups as an axial ligand or ligands of an antimony/phthalocyanine complex. The sulfuric acid group or groups have been introduced by replacing a part or the whole of hydroxyl groups in the starting material with a sulfuric acid group or groups. See FIG. 4.