US1757505A - Process of dyeing - Google Patents

Process of dyeing Download PDF

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Publication number
US1757505A
US1757505A US325397A US32539728A US1757505A US 1757505 A US1757505 A US 1757505A US 325397 A US325397 A US 325397A US 32539728 A US32539728 A US 32539728A US 1757505 A US1757505 A US 1757505A
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US
United States
Prior art keywords
dyeing
regenerated cellulose
amino
naphthol
sulphonic
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
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US325397A
Inventor
Baddiley James
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Imperial Chemical Industries Ltd
Original Assignee
British Dyestuffs Corp Ltd
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Publication date
Application filed by British Dyestuffs Corp Ltd filed Critical British Dyestuffs Corp Ltd
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Publication of US1757505A publication Critical patent/US1757505A/en
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Classifications

    • D—TEXTILES; PAPER
    • D06—TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06P—DYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P3/00—Special processes of dyeing or printing textiles, or dyeing leather, furs, or solid macromolecular substances in any form, classified according to the material treated
    • D06P3/58—Material containing hydroxyl groups
    • D06P3/60—Natural or regenerated cellulose
    • D06P3/62—Natural or regenerated cellulose using direct dyes
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10S—TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10S8/00—Bleaching and dyeing; fluid treatment and chemical modification of textiles and fibers
    • Y10S8/916—Natural fiber dyeing
    • Y10S8/918—Cellulose textile

Definitions

  • the monoazo dyestuii obtained by coupling diazotized aniline with a benzoylated 2 amino 5 naphthol 7 sulphonic acid gives particularly very even dyeings on regenerated cellulose silk;
  • aniline there may be substituted beta-naphthylamine, paranitroaniline, meta-aminobenzonic acid, 2 naphthylamine-6:8-disulphonic acid and ara-chloroaniline
  • the dyestuffs obtained bemg especially valuable in producing level shades in dyeings on regenerated cellulose silk.
  • These aryl amines have'the general formula H Nl t wherein R represents a phenyl or naphthyl residue or the nitro, chloro, sulphonic or carboxylie derivatives of such residue.
  • the regenerated cellulose silk materials are dyed in the usual Way.
  • the following description is typical of the manner in which the dyeing may be carried out, but it must be understood that these conditions may 1 varied. considerably and that I do not mit myself to the conditions given in the exstuff produced by combining the diazo com-- pound of aniline with benzoyl-2-amino-5 nahpthol-7-sulphonic acid.
  • 100 parts of the regenerated cellulose silk material are entered into the dyebath, which is then brought to the boil.
  • About 10 parts of Glaubers salt or common salt are then added and dyeing allowed to proceed at or near the boil for hour. If desired soap may be added to the dyebath.
  • the fabric is dyed a bright red shade, the dyeing being particularly level.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Coloring (AREA)

Description

Patented May 6, 1930 UNITED STATES PATENT; OFFICE JAMES BADDILEY, OF BLACKLEY, MANCHESTER, ENGLAND, ASSIGNOR TO BRITISH DYESTUFFS CORPORATION LIMITED, 01? MANCHESTER, ENGLAND PROCESS OF DYEING No Drawing. Application filed Kay 26, 1927, Serial No. 194,542, and in Great Britain September 7, 19%. Divided and this application filed December 11, 1928. Serial No. 325,397. Renewed September 24, 1988.
In my co-pending application Serial No. 194,542, I have described the dyeing of regenerated cellulose silk,such as viscose silk,
in level shades,with the monoazo dyestuffs obtained on coupling diazotized aromatic amines, their homologues, derivatives, and
the sulphonic acids and earboxylic acidsthereof with a 2-amino-5-naphthol-7-sulphonic acid, including in this expression its N -substituted derivatives. Some of the dyestuffs of this class are already known but they have never been used commercially, probably because they possess too small an affinity for cotton.
It is stated in the above mentioned application that I have made the entirely unexvalue to those engaged in the process of dyeing regenerated cellulose silks.
Among the dyes included in the above, I have found that the monoazo dyestuii obtained by coupling diazotized aniline with a benzoylated 2 amino 5 naphthol 7 sulphonic acid gives particularly very even dyeings on regenerated cellulose silk; In the above example in place of aniline, there may be substituted beta-naphthylamine, paranitroaniline, meta-aminobenzonic acid, 2 naphthylamine-6:8-disulphonic acid and ara-chloroaniline, the dyestuffs obtained bemg especially valuable in producing level shades in dyeings on regenerated cellulose silk. These aryl amines have'the general formula H Nl t wherein R represents a phenyl or naphthyl residue or the nitro, chloro, sulphonic or carboxylie derivatives of such residue.
The regenerated cellulose silk materials are dyed in the usual Way. The following description is typical of the manner in which the dyeing may be carried out, but it must be understood that these conditions may 1 varied. considerably and that I do not mit myself to the conditions given in the exstuff produced by combining the diazo com-- pound of aniline with benzoyl-2-amino-5 nahpthol-7-sulphonic acid. 100 parts of the regenerated cellulose silk material are entered into the dyebath, which is then brought to the boil. About 10 parts of Glaubers salt or common salt are then added and dyeing allowed to proceed at or near the boil for hour. If desired soap may be added to the dyebath. The fabric is dyed a bright red shade, the dyeing being particularly level.
What I claim and desire to secure by Letters Patent is 1. A process of dyeing regenerated cellulose material in level shades, characterized by the application to the material of a monoazo dyestufi .obtained by coupling a benzoylated 2-amino-5-naphthol-7-sulphonic acid with diazotized aniline.
2. The process of dyeing regenerated cellulose material in level shades characterized by the application to the material of monoazo dyestuifs obtained in coupling benzoylated 2-amino-5-naphthol-7-sulphonic acid with a diazo compound.
3. The process of dyeing regenerated cellulose material in level shades characterized by the application to the material of a monoazo dyestufi obtained b coupling benzoylated 2-amino-5-naphthol- -sulphonic acid with a diazotized aryl amine having the general formula I-LN R wherein R represents a phenyl or naphthyl residue or the nitro, chloro, sulphonic or carboxylic derivatives of such residue.
In witness whereof I affix my signature.
JAMES BADDILEY.
US325397A 1926-09-07 1928-12-11 Process of dyeing Expired - Lifetime US1757505A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1757505X 1926-09-07

Publications (1)

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US1757505A true US1757505A (en) 1930-05-06

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