| abstract |
PURPOSE:To increase the resistances for water, light, oxidation, chemicals and others respectively, by holding the coloring material the degree of discoloration of which is within a specified range on the carrier under the active dispersion state and in the form of the sensitizer for sensitizing oxidation of the uneven group. CONSTITUTION:The coloring material, whose degree of discoloration is in the 4-8 classes regulated by the JIS (Japanese Industrial Standard)-LO841, is prepared with the organism activity suppressing agent containing the sensitizer for uneven-group sensitizing oxidation which is held under the active dispersion state. This suppressing agent is distributed into the organism growing system under existance of visible light and oxygen. For instance, the film-type organism activity suppressing agent 2 is coated over the inner wall of the water bath 1 with the liquid 3 to be treated for growth of the organism put into the bath 1, and the visible light is irradiated from outside and under existence of the oxygen to give suppression to the activity of the organism in the solution to be treated. The organism activity suppressing agent uses the aromatic ketone compound, aromatic heterocyclic compound, azo compound and the like. |