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    Reactive dyes and preparation methods thereof
    1.
    发明授权
    Reactive dyes and preparation methods thereof 有权

    公开(公告)号：US12091552B2

    公开(公告)日：2024-09-17

    申请号：US18366655

    申请日：2023-08-07

    申请人： NANTONG UNIVERSITY

    发明人： Min Li ,  Wujun Ma ,  Jialiang Zhou ,  Wenlin Qu ,  Ting Ding ,  Lifen Mao ,  Shiyu Li

    IPC分类号： C09B61/00 ,  C09B33/048 ,  C09B62/01 ,  D06P1/06 ,  G01N33/52

    CPC分类号： C09B62/01 ,  C09B33/048 ,  D06P1/06 ,  G01N33/52

    摘要： Disclosed are reactive dyes and preparation methods thereof. The reactive dye may be prepared using heterocyclic primary amine as a diazo component, 4,4′-diamino-2,2′-stilbenedisulfonic acid, s-triazine, or ethylenediamine as a bridging group, and a dimonochlortriazine group as an active group. The color-changing compound is covalently bonded into the fiber chemical structure by nucleophilic substitution reaction between monochlorotriazine and the hydroxyl group in a textile structure, and the size of the conjugated system and the range of electron delocalization of the dye are changed by a reversible isomerization reaction of the hydroxyl group adjacent to the diazo group and the diazo group under different pH regulations. Moreover, the dye has a double color changing structure, which improves the capability of the dye combined with —H/—OH. The pH value range that can cause color changes in the dye is effectively expanded to include weak alkali, weak acid or even neutral conditions.

    Water-soluble disazo dyestuffs and process for coloring synthetic polyamide fibres with them
    6.
    发明授权
    Water-soluble disazo dyestuffs and process for coloring synthetic polyamide fibres with them 失效
    水溶性双偶氮染料和合成聚酰胺纤维染色的方法

    公开(公告)号：US4194883A

    公开(公告)日：1980-03-25

    申请号：US936184

    申请日：1978-08-23

    申请人： Hermann Fuchs ,  Klaus Filzinger

    发明人： Hermann Fuchs ,  Klaus Filzinger

    IPC分类号： C09B31/04 ,  C09B43/132 ,  D06P1/06 ,  C09B27/00 ,  D06P1/02

    CPC分类号： D06P1/06 ,  C09B31/041 ,  C09B43/132 ,  Y10S8/924

    摘要： Water-soluble disazodyestuffs of the formula ##STR1## in which R.sub.1 and R.sub.2 are identical or different and each is hydrogen, methyl, ethyl or methoxy, and R.sub.3 is hydrogen, chlorine, nitro or alkyl of 1 to 4 carbon atoms, and their salts have been found which possess very good dyeing characteristics and are very well suitable for dyeing of synthetic polyamides and yield dyeings on these fibers with good to very good wet fastnesses and fastnesses to processing and to use. In accordance with this, an improved process had been found for coloring synthetic polyamide fibres by applying the above dyestuffs of the invention on said fibres in usual dyeing and printing methods and fixing them on the fibre by methods as usual in the art.

    摘要翻译： 其中R 1和R 2相同或不同，并且各自为氢，甲基，乙基或甲氧基，R 3为氢，氯，硝基或1至4个碳原子的烷基，其盐的水溶性抗菌药物及其盐 已经发现其具有非常好的染色特性，并且非常适合于合成聚酰胺的染色和在这些纤维上产生染色，具有良好至非常好的耐湿牢度和对加工和使用的牢度。 据此，已经发现通过在通常的染色和印刷方法中将上述本发明的染料施用在所述纤维上并通过本领域常规方法将它们固定在纤维上而已经改进了合成聚酰胺纤维着色的方法。

    Acid disazo dyestuffs containing a substituted thiophene middle component
    7.
    发明授权
    Acid disazo dyestuffs containing a substituted thiophene middle component 失效
    含有取代噻吩中间成分的酸性双偶氮染料

    公开(公告)号：US4180503A

    公开(公告)日：1979-12-25

    申请号：US612318

    申请日：1975-09-11

    申请人： Dieter vor der Bruck ,  Gerhard Wolfrum

    发明人： Dieter vor der Bruck ,  Gerhard Wolfrum

    IPC分类号： C09B31/02 ,  C09B62/533 ,  D06P1/06 ,  C09B31/14 ,  C09B31/04 ,  C09B31/06 ,  C09B31/08

    CPC分类号： C09B31/02 ,  C09B31/025 ,  C09B62/533 ,  D06P1/06

    摘要： Dyestuffs which in the free acid form correspond to the formula ##STR1## wherein A represents the radical of an aromatic carbocyclic or aromatic heterocyclic diazo component,B represents the radical of a carbocyclic or heterocyclic coupling component,X represents OH, --NHSO.sub.2 --R.sub.3, --N(R.sub.4)--alkylene-SO.sub.3 H, --N(R.sub.4)-arylene-SO.sub.3 H, --N(R.sub.4)-arylene--CH.sub.2 --SO.sub.3 H or --N(R.sub.4)-arylene-SO.sub.2 --NH-SO.sub.2 -R.sub.3 and N(R.sub.4)-alkylene-O-SO.sub.3 H,R.sub.1 represents alkyl, aryl, carbalkoxy or hydrogen,R.sub.2 represents carbalkoxy, carboxylic acid amide or cyano,R.sub.3 represents alkyl or aryl,R.sub.4 represents hydrogen or alkyl,m and n represent 0, 1 or 2,p represents 0 or 1 andm+n represent 1 or 2are suitable for the dyeing of natural and synthetic fibre materials, particularly for the dyeing of polyamide fibre materials.

    摘要翻译： 游离酸形式的染料对应于式“IMAGE”，其中A表示芳族碳环或芳族杂环重氮组分的基团，B表示碳环或杂环键合组分的基团，X表示OH，-NHSO 2 -R 3， -N（R4） - 亚烷基-SO3H，-N（R4） - 亚芳基-SO3H，-N（R4） - 亚芳基-CH2-SO3H或-N（R4） - 亚芳基-SO2-NH-SO2-R3和N（ R 4） - 亚烷基-O-SO 3 H，R 1表示烷基，芳基，烷氧基或氢，R 2表示烷氧基，羧酸酰胺或氰基，R 3表示烷基或芳基，R 4表示氢或烷基，m和n表示0,1或2 ，p表示0或1，m + n表示1或2适用于天然和合成纤维材料的染色，特别是用于染色聚酰胺纤维材料。