Title:
DECOLORIZATION METHOD
Document Type and Number:
Japanese Patent JP2021098904
Kind Code:
A
Abstract:
To provide a decolorization method capable of easily and simply removing a coloring part from a process-target object while appropriately preventing deterioration of a base material.SOLUTION: A decolorization method is configured to remove at least a part of a coloring part from a process-target object 100 including a base material and the coloring part attached to the base material. The coloring part is decomposed or deteriorated through causing a radical generated in process liquid 20 to contact with the coloring part in a state where the process-target object 100 is immersed in the process liquid 20 containing water. The radical is preferably generated by supplying to the process liquid 20 a plasma gas obtained by making a raw material gas into plasma and having contact with water.SELECTED DRAWING: Figure 1
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Inventors:
MURATA HIDEYUKI
Application Number:
JP2019230786A
Publication Date:
July 01, 2021
Filing Date:
December 20, 2019
Export Citation:
Assignee:
DAINIPPON INK & CHEMICALS
International Classes:
D06L4/50; C11D7/54; D06M10/00; D06M10/02; D06M11/34
Attorney, Agent or Firm:
Shinji Komai
Inoue Akifumi
Inoue Akifumi