Title:
METHOD FOR DYEING SYNTHETIC POLYAMIDE FIBER TO BLACK
Document Type and Number:
Japanese Patent JP3579772
Kind Code:
B2
Abstract:
PURPOSE: To dye a synthetic polyamide fiber to deep black excellent in color fastness by dyeing the synthetic polyamide fiber with a specific disazo compound using a water-soluble cobalt salt or a water-soluble nickel salt as a mordant.
CONSTITUTION: This method for dyeing a synthetic polyamide fiber to black is to dye the synthetic polyamide fiber with a disazo compound represented by the formula in an acidic bath acidified with acetic acid according to a conventional method, then reduce the temperature (to 80°C) and mordant the fiber with a mordant of a water-soluble cobalt salt (cobalt acetate) or a water-soluble nickel salt. Thereby, the fiber is dyed to deep black excellent in color fastness to abrasion, washing and light.
Inventors:
Takayuki Takeuchi
Hideki Tanaka
Hideki Tanaka
Application Number:
JP17983394A
Publication Date:
October 20, 2004
Filing Date:
June 27, 1994
Export Citation:
Assignee:
Yamada Chemical Co., Ltd.
International Classes:
D06P1/36; D06P1/673; D06P3/24; (IPC1-7): D06P1/36; D06P1/673; D06P3/24
Domestic Patent References:
| JP59008762A | ||||
| JP3287883A | ||||
| JP5840357A | ||||
| JP61231280A |
Foreign References:
| DE4215589A |
Attorney, Agent or Firm:
Junichi Ando