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US 3,942,946 AGranted
Black dyeing of acid-modified polyester fiber
AssigneeSumitomo Chemical Company, Limited
InventorsTetuo Okaniwa, Sadaharu Abeta
Life of this patent
Estimating the term…
Abstract
A process for dyeing "acid-modified" polyester fibers, such as "Dacron T-64" fibers, a black color comprising contacting the polyester fibers with a dye bath containing a combination of four kinds of dyes.
Claims12
A process for dyeing acid-modified polyester fibers black comprising contacting said polyester fibers with a dye bath containing a combination of four kinds of dyes, the combination comprising,
- 1. at least one yellow or orange dye of the formula (A), ##SPC21##
- wherein R, R', R" and R'", which may be the same or different, each is a methyl group or an ethyl group;
- R.sub.1 is a hydrogen atom or a halogen atom;
- R.sub.2 is a hydrogen atom or a (C.sub.1 -C.sub.3)alkyl group or a (C.sub.1 -C.sub.3)alkoxy group;
- and X.sup.- is an anion;
- of the formula (E) ##SPC22##
- wherein R.sub.3, R.sub.4 and R.sub.5, which may be the same or different, each is a (C.sub.1 -C.sub.3)alkyl group or an aralkyl group, in which each of the groups may be substituted with a halogen atom, a hydroxyl group or a lower alkoxy group;
- R.sub.6 is a hydrogen atom or a carboxyl group;
- and X.sup.- is an anion;
- and of the formmula (C) ##SPC23##
- wherein Z is a nitrogen atom-containing monoheterocyclic ring which may be substituted with a lower alkyl group or a lower alkoxy group;
- R.sub.7, R.sub.7 ' and R.sub.7 " which may be the same or different, each is a methyl group or an ethyl group;
- R.sub.8 is a hydrogen atom or a halogen atom;
- and X.sup.- is an anion;
- 2. at least one red dye of the formula (D) ##SPC24##
- wherein R.sub.9, R.sub.10, R.sub.11 and R.sub.12, which may be the same or different, each is a (C.sub.1 -C.sub.3)alkyl group or an aralkyl group, in which each of the groups may be substituted with a halogen atom, a hydroxyl group or a lower alkoxy group;
- and X.sup.- is an anion;
- and of the formula (E) ##SPC25##
- wherein R.sub.13 and R.sub.14, which may be the same or different, each is a (C.sub.1 -C.sub.3)alkyl group which may be substituted with a halogen atom, a hydroxyl group or a lower alkoxy group;
- and X.sup.- is an anion;
- 3. at least one violet to blue dye of the formula (F), ##SPC26##
- wherein R.sub.15 is a (C.sub.1 -C.sub.3)alkyl group which may be substituted with a halogen atom, a hydroxyl group, a carbamoyl group or a lower alkoxy group;
- R.sub.16 and R.sub.17, which may be the same or different, each is a (C.sub.1 -C.sub.3)alkyl group or an aralkyl group, in which each of the groups may be substituted with a halogen atom, a hydroxyl group or a lower alkoxy group;
- and X.sup.- is an anion;
- and
- 4. at least one dye of the formula (G), ##SPC27##
- wherein R.sub.18 and R.sub.19, which may be the same or different, each is a (C.sub.1 -C.sub.3)alkyl or an aralkyl group, in which each of the groups may be substituted with a halogen atom, a hydroxyl group or a cyano group;
- R.sub.20 is a hydrogen atom or an amino group which may be substituted with an alkyl group or a phenyl group;
- and X.sup.- is an anion.
26 more elements
A black dye composition comprising a combination of four kinds of dyes, the combination comprising
- 1. at least one yellow or orange dye of the formula (A), ##SPC35##
- wherein R, R', R" and R'", which may be the same or different, each is a methyl group or an ethyl group;
- R.sub.1 is a hydrogen atom or a halogen atom;
- R.sub.2 is a hydrogen atom or a (C.sub.1 -C.sub.3)alkyl group or a (C.sub.1 -C.sub.3) alkoxy group;
- and X.sup.- is an anion;
- of the formula (B) ##SPC36##
- wherein R.sub.3, R.sub.4 and R.sub.5, which may be the same or different, each is a (C.sub.1 -C.sub.3)alkyl group or an aralkyl group, in which each of the groups may be substituted with a halogen atom, a hydroxyl group or a lower alkoxy group;
- R.sub.6 is a hydrogen atom or a carboxyl group;
- and X.sup.- is an anion;
- and of the formula (C) ##SPC37##
- wherein z is a nitrogen atom-containing monoheterocyclic ring which may be substituted with a lower alkyl group or a lower alkoxy group;
- R.sub.7, R.sub.7 ' and R.sub.7 " which may be the same or different, each is a methyl group or an ethyl group;
- R.sub.8 is a hydrogen atom or a halogen atom;
- and X.sup.- is an anion;
- 2. at least one red dye of the formula (D) ##SPC38##
- wherein R.sub.9, R.sub.10, R.sub.11 and R.sub.12, which may be the same or different, each is a (C.sub.1 -C.sub.3)alkyl group or an aralkyl group, in which each of the groups may be substituted with a halogen atom, a hydroxyl group or a lower alkoxy group;
- and X.sup.- is an anion;
- and of the formula (E) ##SPC39##
- wherein R.sub.13 and R.sub.14, which may be the same or different, each is a (C.sub.1 -C.sub.3)alkyl group which may be substituted with a halogen atom, a hydroxyl group or a lower alkoxy group;
- and X.sup.- is an anion;
- 3. at least one violet to blue dye of the (F), (F). ##SPC40##
- wherein R.sub.15 is a (C.sub.1 -C.sub.3)alkyl group which may be substituted with a halogen atom, a hydroxyl group, a carbamoyl group or a lower alkoxy group;
- R.sub.16 and R.sub.17, which may be the same or different, each is a (C.sub.1 -C.sub.3)alkyl group or an aralkyl group, in which each of the groups may be substituted with a halogen atom, a hydroxyl group or a lower alkoxy group;
- and X.sup.- is an anion;
- and
- 4. at least one dye of the formula (G), ##SPC41##
- wherein R.sub.18 and R.sub.19, which may be the same or different, each is a (C.sub.1 -C.sub.3)alkyl or an aralkyl group, in which each of the groups may be substituted with a halogen atom, a hydroxyl group or a cyano group;
- R.sub.20 is a hydrogen atom or an amino group which may be substituted with an alkyl group or a phenyl group;
- and X.sup.- is an anion.
26 more elements
Dependencies are inferred from the claim text.