US963656A - Producing brown, olive, and green shades on the fiber. - Google Patents

Description

IINITED STATES PATEN T OFFICE.

HENRI SCI-IMID, OF MIILHAUSEN, GERMANY, ASSIGNOR TO BADISCHE ANILIN & SODA FABRIK, 0F LUDWIGSHAFEN-ON-THE-RI-IINE, GERMANY, A CORPORATION.

PRODUCING BROWN, OLIVE, AND GREEN SHADES ON THE FIBER.

No Drawing.

Specification of Letters Patent. Application filed March 25, 1909.

Patented July 5, 1910. Serial No. 485,764.

To all whom it may concern:

Be it known that I, HENRI ScHMn), chemist, citizen of the Swiss Republic, residing at iilhausen, in Alsace, Germany, have in vented new and useful Improvements in Producing Brown, Olive, andGreen Shades on the Fiber, of which the following is a specification.

It is known that, by suitably oxidizing para phenylene diamin in the presence of the fiber, reddish brown shades can be obtained possessing many good qualities. It has now been discovered that in a somewhat similar manner various shades as hereinafter explained, can be obt-aine' by suitably oxidizing meta-amino-phenolic bodies on the fiber. For the purposes of this invention the salts of these bases are submitted to oxidation with alkali chlorate and ferrocyanid in a manner analogous to that customary when producing anilin black. If, for instance, goods treated with the hydrochloric acid salt of 1.3-amino-phenol be steamed in the presence of sodium chlorate and yellow ferrocyanid of potash and subsequently chromed or aged and washed, as in the production of anilin black, a bronze-olive shade is obtained which possesses practical value. By soaping, the shade can be rendered browner and more nearly bronze color. If shades resembling bister be desired, after steaming and chroming, or aging, the goods must be treated with analkali, which can be done by passing the goods through a lukewarni bath containing silicate of soda, borax, soda, or the like. When the goods thus treated are soaped, a brown, with a distinct yellow shade, is obtained. Among the meta-amino-phenolic bodies which can be used, I mention meta-amino-phenol itself and the meta-amino-cresols. Para-aminophenols and orthoamino-phenols can also be used in conjunction with the meta-aminophenolic bodies, and various shades can be obtained. It has further been discovered that green and olive shades can be obtained by choosing conditions which tend to in crease the formation and prevent the decomposition of Prussian blue, that is, by increasing the quantity of ferrocyanid employed and the acidity and preventing the decomposition of the blue by washing, after chroming or aging, in water free from lime, or even in acidified water.

The shades obtained according to this invention can be produced using either white, or colored reserves. The shades have good fastness against the action of light and soap.

The following are invention can be performed, but it is not confined to these examples.

Examples: Prepare a bath containing thirty grams of meta-amino-phenol, thirty cubic centimeters of thirty per cent. hydrochloric acid, thirty, to forty, grams of potassium ferrocyanid, and twenty-five grams of sodium chlorate in each liter of the bath. Or the following proportions may be taken. Twenty-five grams of meta-amino-phenol, fifty, to sixty, cubiccentimeters of thirty per cent. hydrochloric acid, sixty grains of potassium ferrocyanid, and twenty-five grams of sodium chlorate in each liter of the bath. In either case, filter the solution, pad the goods with the filtered solution, and dry on the hot fiue. At this stage the goods may appear white, or slightly colored. If desired, a white, or colored, reserve can be printed onto the grounded goods. goods are steamed for about ten minutes in a Mather & Platt apparatus and treated with a lukewarm solution of sodium bichromate. To obtain a green shade, wash the goods with slightly acidified water, and dry them. To obtain a brown shade, wash the goods in water, and pass them through a bath of sodium silicate and wash and soap them. For white reserve there can be used, for instance, four hundred grains of gum solution, four hundred grams of potassium sulfite (45 Be) mixed with one hundred grams of gum solution, and one hundred grams of rongalite C. For colored reserves on cotton the ordinary albumin dyes to which alkali sulfite and acetate have been added, or basic dyes with zinc white, can be used. Upon silk, or half silk, it is sufiicient to print basic dyes together with potassium sulfite and sodium acetate. In these examples the meta-amino-phenol can be replaced by other meta-amino-phenolic bodies; for instance, by either of the meta-aminocresols (CH :OH:NH =1:2:4, or 1:4:2), in which case shades which are more yellow are produced.

Now what I claim is:

1. The process of producing brown, olive,

H and green shades on the fiber by applying examples of how my.

steaming, then chroming, o ing the material.

to the material a meta-amino-phenolic body, an alkali chlorate, then causing the oxidation of the metaamino-phenolic body substantially as described.

2. The processof producing brown, olive,

and green shades on the fiber by applying to the material ameta-amino-phenol1c body an alkali chlorate, and a ferrocyanid, then and finally wash- 7 3. The process of producing brown, olive, and green shades on the fiber by applying to the material a meta-amino-phenolic body,

a para-fammo-phenolic body, an alkali chlorate, and a'ferrocyanid, then steamin then chroming,-and finally washin the material' 4. The process of pro ucing brown shades on the fiber by'applying to the material a meta-amino-phenolic body, an alkali chlorate, and a -ferrocyanid, thensteaming, then chroming, and finally washing the material-in an alkaline bath. V

5. The [process of producing brown shades 0n the fiber by applying to theimaterial meta-amino-phenol, para-amino-phenol,

an alkali chlorate, andfa ferrocyanid, then and a ferrocyanid, and- 'ing steaming, then chroming, and finally washing' the material in an alkaline bath.

6. The process of producing gbrown shades with discharge effects on the fiber by applying to the material a meta-amino-phenolic body, an alkali chlorate, and a ferrocyanid, then witnesses. r

' HENRI SCHMID.

WVitnesses: GEO. GIEFORD,

ABNOLQ ZUBER.

drying the material and print- 7 'ing it with a paste containing a reducing