US320821A - Half to henby w - Google Patents

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US320821A
US320821A US320821DA US320821A US 320821 A US320821 A US 320821A US 320821D A US320821D A US 320821DA US 320821 A US320821 A US 320821A
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solution
mordant
baum
chromium
pints
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    • DTEXTILES; PAPER
    • D06TREATMENT OF TEXTILES OR THE LIKE; LAUNDERING; FLEXIBLE MATERIALS NOT OTHERWISE PROVIDED FOR
    • D06PDYEING OR PRINTING TEXTILES; DYEING LEATHER, FURS OR SOLID MACROMOLECULAR SUBSTANCES IN ANY FORM
    • D06P1/00General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed
    • D06P1/44General processes of dyeing or printing textiles, or general processes of dyeing leather, furs, or solid macromolecular substances in any form, classified according to the dyes, pigments, or auxiliary substances employed using insoluble pigments or auxiliary substances, e.g. binders
    • D06P1/653Nitrogen-free carboxylic acids or their salts
    • D06P1/6533Aliphatic, araliphatic or cycloaliphatic

Definitions

  • My invention is an improved mordant of a character to deposit chromium oxide upon cotton and other fabrics in order to adapt the same to be dyed fast-colors by the use of aniline dyes.
  • I use 0xalate 'of chromium, which I prepare in the following manner: I first dissolve sixty-six pounds of bichromate of potash in ninetythree pints of boiling Water, and add to the solution fifty-five pints of nitric acid of a strength of 36 Baum. I then prepare a second solution of twenty-nine pounds of oxalic acid in sixty pints of water, and add sixteen pints of glycerine of a strength of 28 Baum.
  • the mordant mixture thus produced eonstitutes a salable preparation.
  • the mordant is to be used for mordanting fabrics, a portion thereof is diluted 0 with double its volume of cold water, and the goods,after being soaked in boiling water,are soaked in the mordant-liquor for ten hours, and then removed, thoroughly washed, and dyed in the ordinary manner.
  • I claim- A mordant for preparing fabrics for dyeing with aniline dyes, consisting of a mixture of a solution of oxalate of chromium and a solution of caustic soda, substantially as described.

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

Description

UNITED STATES PATENT OFFICE RUDOLF SILBERBERG, OF JERSEY CITY, NEW JERSEY, ASSIGNOR OF ONE- HALF TO HENRY W. HOOPS, JR, OF SAME PLACE.
MO RDANT.
SPECIFICATION forming part of Letters Patent No. 320,821, dated June 23, 1885. Application filed May 8, 1885. (No specimens.) Patented in Canada April 20, 1885, No. 21,458.
To all whom it may concern.-
Be it known that I, RUDoLE SILBERBERG, a citizen of the United States, residing at J ersey City, in the county of Hudson and State of New Jersey, have invented certain new and useful Improvements in Mordants, of which the following is a specification.
My invention is an improved mordant of a character to deposit chromium oxide upon cotton and other fabrics in order to adapt the same to be dyed fast-colors by the use of aniline dyes.
In the preparation of my mordant I use 0xalate 'of chromium, which I prepare in the following manner: I first dissolve sixty-six pounds of bichromate of potash in ninetythree pints of boiling Water, and add to the solution fifty-five pints of nitric acid of a strength of 36 Baum. I then prepare a second solution of twenty-nine pounds of oxalic acid in sixty pints of water, and add sixteen pints of glycerine of a strength of 28 Baum. The two solutions are added together and boiled until a diluted solution appears of a clear green color, after which the solution is allowed to stand until nitrate of potash is deposited as crystals, when the oxalate of chromium will be in solution in the liquor of a strength of to 88 Baum.
In making the mordant I take twenty quarts of the abovementioned liquor diluted with water to 8 Baum, and mix therewith seventeen and a half quarts of a solution of caustic soda of a strength of 20 Baum, and after the two are well mixed I add five quarts of 5 water.
The mordant mixture thus produced eonstitutes a salable preparation.
\Vhen the mordant is to be used for mordanting fabrics, a portion thereof is diluted 0 with double its volume of cold water, and the goods,after being soaked in boiling water,are soaked in the mordant-liquor for ten hours, and then removed, thoroughly washed, and dyed in the ordinary manner.
I do not here claim the mode of making an oxalate of chromium or the mode of dyeing aniline colors therewith, as the same constitutes the subject of separate applications for Letters Patent Nos. 160,074 and 160,075.
I claim- A mordant for preparing fabrics for dyeing with aniline dyes, consisting of a mixture of a solution of oxalate of chromium and a solution of caustic soda, substantially as described.
I11 testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.
RUDOLF SILBERBERG.
Witnesses:
FRANK J. MATnEws, HENRY W. HOOPS, Jr.
US320821D Half to henby w Expired - Lifetime US320821A (en)

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US320821A true US320821A (en) 1885-06-23

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