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    Disazo 4,4'-diaminostilbene-2,2'-disulfonic acids dye
    21.
    发明授权
    Disazo 4,4'-diaminostilbene-2,2'-disulfonic acids dye 失效
    二磺基4,4'-二氨基芪-2,2'-二磺酸染料

    公开(公告)号：US4612369A

    公开(公告)日：1986-09-16

    申请号：US462505

    申请日：1983-01-31

    Applicant: Alfred Fasciati

    Inventor： Alfred Fasciati

    IPC: C09B35/215 ,  C09B43/28 ,  C09B56/04 ,  D06P1/06 ,  D06P3/24

    CPC classification number: C09B35/215 ,  C09B43/28

    Abstract: Disazo dyes of the formula ##STR1## wherein the rings "a" either contain no further substituents and carry the azo group in the para-position to the .beta.-hydroxybutoxy group, or contain a C.sub.1 -C.sub.4 alkyl of C.sub.1 -C.sub.2 alkoxy radical in the para-position, and carry the azo group in the ortho-position, to the .beta.-hydroxybutoxy group. The dyes are specially suitable for dying and printing polyamide carpets. The dyes are distinguished by good solubility, good exhaustion and good fastness properties, including fastness to perspiration.

    Abstract translation: 式（I）＆lt; IMAGE＆gt;的双偶氮染料其中环“a”不含有其它取代基，并且在β-羟基丁氧基的对位中带有偶氮基团，或含有C1- -C 2烷氧基，并将邻位的偶氮基带入β-羟基丁氧基。 这些染料特别适用于染色和印花聚酰胺地毯。 染料具有良好的溶解性，良好的消耗性和良好的牢度特性，包括耐汗牢度。

    Process for the production of salts of stilbene-azo and stilbene-azoxy dyes
    22.
    发明授权
    Process for the production of salts of stilbene-azo and stilbene-azoxy dyes 失效
    二苯乙烯偶氮苯偶氮染料盐生产工艺

    公开(公告)号：US4126608A

    公开(公告)日：1978-11-21

    申请号：US641484

    申请日：1975-12-17

    Applicant: Reinhard Pedrazzi

    Inventor： Reinhard Pedrazzi

    IPC: C09B56/04 ,  C09B69/04 ,  D21H21/28 ,  C09B27/02

    CPC classification number: C07C309/00 ,  C09B56/04 ,  C09B69/045 ,  D21H21/28

    Abstract: Salts of stilbene-azo and stilbene-azoxy dyestuffs, and mixtures thereof inhich the cations are selected from tetra-alkylammonium, tetraalkylammonium in combination with lithium, sodium, potassium or ammonium, and ammonium in combination with lithium, sodium or potassium, have good cold water solubility relative to known salts of such dyes.The preferred dyes have the formula ##STR1## wherein (1) EACH R' is independently --SO.sub.3.sup..crclbar. M.sup..sym. or --SO.sub.3.sup..crclbar. N.sup..sym. (R).sub.4'wherein each R is independently alkyl of 1 to 6 carbon atoms or alkyl of 1 to 6 carbon atoms substituted by hydroxy, cyano, halo or phenyl, andEach M.sup..sym. is independently hydrogen, lithium, sodium, potassium or ammonium, with the proviso that at least one R' is --SO.sub.3.sup..crclbar. N.sup..sym. (R).sub.4'(2) each R' is --SO.sub.3.sup..crclbar. M.sup..delta.,wherein each M.sup..sym. is lithium, sodium, potassium, or ammonium, with the proviso that at least one M.sup..sym. is ammonium, or(3) each R' is independently --SO.sub.3 .sup..crclbar. M.sup..sym. or --SO.sub.3.sup..crclbar. N.sup..sym. (R).sub.4'wherein each R is independently alkyl of 1 to 6 carbon atoms or alkyl of 1 to 6 carbon atoms substituted by hydroxy, cyano or halo, andeach M.sup..sym. is ammonium or an alkali metal, with the proviso that at least one R' is --SO.sub.3.sup..crclbar. M.sup..sym. wherein M.sup..sym. is ammonium.The dyes are useful for producing colored paper by incorporation into paper stock or by application to paper sheet. The dyed paper is fast to light and wet treatments.

    Abstract translation: 二苯乙烯 - 偶氮和茋 - 氧化偶氮染料的盐及其混合物，其中阳离子选自四烷基铵，四烷基铵与锂，钠，钾或铵的组合，以及与锂，钠或钾组合的铵，具有良好的 相对于已知盐的冷水溶解度

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