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US 2025/0376802 A1Published application
Bleaching Method and Bleaching Device
AssigneeAsahi Kasei Kabushiki Kaisha
InventorTomohiro Sugahara
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Abstract
Provided are a bleaching method capable of bleaching the color of a fiber product without the use of a high-temperature treatment or a chemical, and a bleaching apparatus for use in the bleaching method. The present invention provides a bleaching method comprising the step of irradiating a colored fiber with light comprising a wavelength of 360 to 600 nm in the presence of oxygen.
Claims21
A bleaching method comprising the step of
- irradiating a colored fiber with light comprising a wavelength of 360 to 600 nm in the presence of oxygen.
A bleaching apparatus comprising
- a light irradiation unit that irradiates a colored fiber with light comprising a wavelength of 360 to 600 nm in the presence of oxygen.
Dependencies are inferred from the claim text.