US394448A - And john bancroft - Google Patents

Description

UNITED STATES PATENT OFFICE.

VICTOR-G. BLOEDE, OF BALTIMORE, MARYLAND, AND JOHN BANCROFT, OF

' CI'IRISTTANA, DELAWARE.

TINTING OR FINISHING COTTON FABRICS.

SPECIFICATION forming part of Letters Patent No. 394,448, dated December 11, 1888.

Application filed March 6, 1888.

T0 aZZ whom it may concern:

Be it known that we, VICTOR G. BLOEDE, a citizen of the United States, and a resident of the city of Baltimore, in the State of Maryland, and JOHN BANCROFT, also a citizen of the United States, and aresident of Rockford, Christiana Hundred, New Castle county, in the State of Delaware, have invented certain new and useful Improvements in Processes for Coloring and Finishing Cotton and other Cheap Fabrics, of which the following is a full and complete specification.

The purpose of our intention is to color and finish cotton or other cheap goods in such a manner as to give them to $11111? extent the appearance of linen, and to make an article that can be produced at a very low cost that is a satisfactory substitute for linen for many purposes, such as windoi "shades, for instance, and other similar purposes.

To carry out our process we first compound a color to match the several natural shades of crude or gray linen, (or any other color in which it is found desirable to tint the fabric.) This color compound is preferably made up of insoluble color in a state of very fine division, but soluble color may also be used. Having compounded the precise shade desired by the blending of one or more soluble or insoluble colors, the prepared color is mixed with gum or starch and ground to a perfect union and finest possible state of division. The grinding may in some cases be omitted, but in any case the blending of the viscous matter with the color must be thorough and complete. Having obtained the proper color suspended in gummy matter, we add as much of it as is required to obtain the desired tint to a mixture in the cold of starch and water, and, having stirred these materials well together, the mixture is heated to the boiling-point, or until the starch has been converted into a stiff, smooth, and rubbery paste. The consistency of this paste is changed according to the depth of color and degree of threadiness, as well as the character of the finish Serial No. 266,316. lSpecimens.)

desired, but we have found that five pounds of potato starch in a pail of water and color is a good average mixture. Vhen this paste has been thoroughly cooked, as described, it is applied to the fabric to be colored by means of a mangle or other spreading-machine. \Ve prefer to use the method just described for compounding the coloring-mixture, but other gums will serve our purposev So, also, gums may be used that will attain the required consistency without boiling, but starch is cheap and easily handled. The mangle or spreading-machine employed in our process is one Very generally used in dye-houses. It consists of two rolls mounted in a frame, the upper one being of metal and being the driven roll, while the lower one is of wood and is turned by spur-wheels from the upper one. The metal roll is run at about three revolutions to one of the wooden roll and carries the goods which run with it. The wooden roll stands immediately above a vat or box containing the coloring-paste and takes it up as it turns and carries it to the surface of the goods, where it is pressed into the goods in the nip of the rolls. The difference of speed in the rolls and the fact that the wooden roll travels more slowly than the metal one causes it to scrape the surface of the goods as they are drawn over it at a greater speed than its revolution, and the grain of the wood acts as so many small knives or scrapers, by which the paste is partially scraped off of the threads of the fabric, particularly the coarse ones, and pressed into the interstices. The result of this operation is to produce in the goods when dry and finished a thready superficial appearance which greatly resembles linen. These goods have the advantage that the filling which they contain will take a high polish and give to the goods a beautiful appearance. We are aware that colored starch has been heretofore employed for the purpose of coloring fabrics. We are also aware that what is known as the Scotch mangle is an old and well-known machine, and that said machine is frequently made with diiferential rolls, or the threads by scraping, substantialiyas der011s run at a diiferent speed. scribed.

WVhat We claim, and desire to secure by Let- VICTOR G. BLOEDE. ters Patent, is JOHN BANCROFT.

5 The process herein described of tinting or Witnesses to signature of Victor G.B1oede:

finishing cotton fabrics, which consists of fill- FELIX R. SULLIVAN, ing the interstices of the fabric with starch JAMES C. G. UNDUCH- and coloringqnatter thoroughly incorporated \Vitnesses to signature of John Bancroft: together and then removing a portion of the FRANK D. SWEETEN,

1o coloring-mixture from the exposed surface of NVM. H. DEER.