Title:
A PROCESS FOR DYEING DIRECTLY A TEXTILE FABRIC IN SITU
Document Type and Number:
WIPO Patent Application WO/2004/058898
Kind Code:
A1
Abstract:
The present invention relates to a 3- indolol salt that directly dyes a textile fabric by being oxidized into indigo in situ instead of indigo and leucoindigo the method for preparation the same and its application for dyeing directly a textile fabric by being oxidized into indigo in situ. The present invention further relates to a dye composition including -indolol salt for textile fabric and its application, that is a method for oxidizing 3-indolol salt into indigo in situ and dyeing directly a textile fabric. Therefore, it is possible for the composition and method of the present invention to simplify the conventional process into one' 'step, in which indolol salt is converted into indigo by reducing-oxidizing repeatedly. As a result, it simplifies process, saves the alkali and hydros consumed in repeat oxidation-reduction, saves manpower and material resources, enhances the utilization of capacity and reduces the cost as well as is beneficial to environmental protection and market competition accordingly.
Inventors:
YIN YINGWU (CN)
TIAN JINPING (CN)
TANG BO (CN)
ZHENG XIANGBIN (CN)
ZHANG LITA (CN)
FAN FUPING (CN)
MAO WEIPING (CN)
FENG QIAN (CN)
LUO XIAOFENG (CN)
REN YING (CN)
ZHANG ZHENGXI (CN)
TIAN JINPING (CN)
TANG BO (CN)
ZHENG XIANGBIN (CN)
ZHANG LITA (CN)
FAN FUPING (CN)
MAO WEIPING (CN)
FENG QIAN (CN)
LUO XIAOFENG (CN)
REN YING (CN)
ZHANG ZHENGXI (CN)
Application Number:
PCT/CN2003/001057
Publication Date:
July 15, 2004
Filing Date:
December 12, 2003
Export Citation:
Assignee:
BEIJING WISDOM YINGLI PHARMACE (CN)
JIANGSU TAIFENG CHEMICAL IND C (CN)
CHONGQING TAIFENG TAIXING CHEM (CN)
YIN YINGWU (CN)
TIAN JINPING (CN)
TANG BO (CN)
ZHENG XIANGBIN (CN)
ZHANG LITA (CN)
FAN FUPING (CN)
MAO WEIPING (CN)
FENG QIAN (CN)
LUO XIAOFENG (CN)
REN YING (CN)
ZHANG ZHENGXI (CN)
JIANGSU TAIFENG CHEMICAL IND C (CN)
CHONGQING TAIFENG TAIXING CHEM (CN)
YIN YINGWU (CN)
TIAN JINPING (CN)
TANG BO (CN)
ZHENG XIANGBIN (CN)
ZHANG LITA (CN)
FAN FUPING (CN)
MAO WEIPING (CN)
FENG QIAN (CN)
LUO XIAOFENG (CN)
REN YING (CN)
ZHANG ZHENGXI (CN)
International Classes:
C09B7/00; D06P1/22; (IPC1-7): C09B7/00; D06P1/22
Foreign References:
| CN1390888A | 2003-01-15 | |||
| DE2643877A1 | 1978-03-30 | |||
| JPS57200362A | 1982-12-08 | |||
| US6090166A | 2000-07-18 |
Attorney, Agent or Firm:
BEIJING BEIXIN-ZHICHENG INTELLECTUAL PROPERTY AGENT CO., LTD (Xizhimen Nandajie Xicheng District, Beijing 5, CN)
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