13.
    发明专利
    未知

    公开(公告)号:DE69015998D1

    公开(公告)日:1995-02-23

    申请号:DE69015998

    申请日:1990-09-12

    Abstract: A heat-sensitive sublimation transfer cyan dye is of formula (I). In (I), R1 = H, alkyl, alkoxy, alkylcarbonylamino, formylamino or halogen; R2, R3 = alkyl, alkenyl, alkoxyalkyl, aralkyl, aryl, halogenoalkyl, cyanoalkyl; provided that they may be combine to each other to form a ring; and X = a gp. of formula (i) (ii) or (iii). Also claimed is a heat-sensitive sublimation heat-transfer sheet comprising dye(s) of formula (I).

    14.
    发明专利
    未知

    公开(公告)号:DE69012467T2

    公开(公告)日:1995-02-09

    申请号:DE69012467

    申请日:1990-07-06

    Abstract: A process for rope dyeing cotton yarns a fashionable denim blue color comprises the steps of forming the yarns into a rope; repeatedly immersing the rope in a bath containing a reduced water soluble form of an air oxidizable halogenated indigo derivative; squeezing the rope to remove excess liquid and exposing the damp rope to air oxidation of the reduced indigo derivative; and then further oxidizing the incompletely oxidized reduced indigo derivative in an oxidizing bath containing a chemical oxidant, for example sodium perborate.

    15.
    发明专利
    未知

    公开(公告)号:DE69012467D1

    公开(公告)日:1994-10-20

    申请号:DE69012467

    申请日:1990-07-06

    Abstract: A process for rope dyeing cotton yarns a fashionable denim blue color comprises the steps of forming the yarns into a rope; repeatedly immersing the rope in a bath containing a reduced water soluble form of an air oxidizable halogenated indigo derivative; squeezing the rope to remove excess liquid and exposing the damp rope to air oxidation of the reduced indigo derivative; and then further oxidizing the incompletely oxidized reduced indigo derivative in an oxidizing bath containing a chemical oxidant, for example sodium perborate.

    16.
    发明专利
    未知

    公开(公告)号:BR9003266A

    公开(公告)日:1991-08-27

    申请号:BR9003266

    申请日:1990-07-09

    Abstract: A process for rope dyeing cotton yarns a fashionable denim blue color comprises the steps of forming the yarns into a rope; repeatedly immersing the rope in a bath containing a reduced water soluble form of an air oxidizable halogenated indigo derivative; squeezing the rope to remove excess liquid and exposing the damp rope to air oxidation of the reduced indigo derivative; and then further oxidizing the incompletely oxidized reduced indigo derivative in an oxidizing bath containing a chemical oxidant, for example sodium perborate.

    17.
    发明专利
    未知

    公开(公告)号:DE69222597T2

    公开(公告)日:1998-02-12

    申请号:DE69222597

    申请日:1992-07-28

    Abstract: According to the present invention, there can be provided a black dyestuff for heat-sensitive transfer record comprising at least one orange dyestuff represented by the formula (1) Ar1 - N = N - Ar2 - N = N -Ar3 (1) [wherein each of Ar1, Ar2 and Ar3 is independently an aryl group which may have a substituent] and at least one blue dyestuff represented by the formula (2) [wherein each of R1, R2 and R3 is independently a hydrogen atom, halogen atom, nitro group, hydroxyl group, alkyl group which may have a substituent, alkoxy group, alkylsulfonylamino group or alkylcarbonylamino group, and each of R4 and R5 is independently an alkyl group which may have a substituent], and a black heat-sensitive transfer sheet in which the above-mentioned dyestuff is used.

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