US1624652A - Colored sheet material and method of producing the same - Google Patents

Description

April 12 1927.

COLORED SHEET MATERIAL AND METHOD OF PRODUCING THE SAME T. M. ATKINSON Filed sept. e. 1925 2 Sheets-Sheet l April 12 192.7.

T. M. ATKINSON COLORED `SHEET MATERIAL IAND METHOD oF PRoDUING THE SAME v Filed'sept. e, 1925 2 sheets-snm 2 Patented Apr. 12, 1927.-

PATENT oFFicE.

THOMAS M. ATKINSON, F MILLTOWN, NEW JERSEY, ASSIGNOR TO THE ROYSTON I PAIER COMPANY, OF MILLTOWN, NEW JERSEY, A CORPORATION 0F NEW JERSEY.

COLORED SHEET MATERIAL AND METHOD 0F PRODUCIN G THE SAME.

Application filed September 9,1925. Serial No. 55,354.

My invention aims to provide an iniproved colored web or strip of sheet material, more particularly paper, and method or process of producing the same, the present invention being an improvement upon the method and article disclosed in my Pate-nt- 1,47 5,923, dated November 27, 1923.

In the drawings illustrating one form of apparatus for practicing my method or proc- 0 ess and showing also one form of vcolored sheet material embodying my invention:

Fig. 1 is a view partly in side elevation and partly in cross section;

Fig. 2 is a plan view showing a portionof 5 an untreated strip of material;

Figs. 3 and 4 are plan views illustrating intermediate steps in the process; u

Fig. 5 shows one form ofthe finished product. 0 In my patent above mentioned there is disclosed and claimed anI apparatus for and method of producing colored sheet material. such as paper and particularly-that type of colored paper previously produced by hand 5 dipping and commonly known as colored nature papers. The roll 'of untreated paper in said patent may be white or colored but preferably is of uniform color throughout and the resulting paper is also uniform 1n l shade and tone throughout its entire length. In accordance with my present invention the sheet material or paper is given a basic or body color Which is uniform but in which appear any desired configurations in differ- 5 ent or contrasting color or colors in or apparent through the basic color. The designs or configurations may be variously ap plied prior'to the dyeing operation and in any suitable manner, as by printing, lithographing, photogravure, stamping, or thel like, and in Figs. 3 and 4 I have illustrated one method of pre-forming said colored areas.

In Fig. f2 lv have represented a portion of a l strip or web of plain sheet material 6, herein paper, which may be white or any other vsuitable color. Said plain colored, or uncoll ored web is passed between a pair of printing rolls, of which the upper roll 35 appears in Fig. 3. Said rolls are adapted to print be passed between a second color contrasting with that previously apf plied, are formed of bronze, gold, silver, or other metallic or lustrous coloring materials or their substitutes. In some places the metallic or lustrous areas may overlie the colored sections previously applied, While in other places they may be applied directly to the material, the arrangement and form of the vaious configurations being in accordance with the whim of the individual manufacturer. As in Fig. 3, the configurations may be imposed on both faces of 'the material, but ordinarily one face only is configurated, and if desired only the metallic or lustrous colored areas may be applied.

The'strip material or paper with the conu l n s n f\ igurations imposed, eitlierin a single and preferably metallic color or in a plurality of colors, may be rewound into roll form or may be passed directly from the printing or other color applyingmeans to the dyeing apparatus. The later is preferably of the type disclosed and claimed in my said patent and herein sufficiently illustrated to afford a lcomplete' understanding thereof.-

l Referring to Fig. 1, said apparatus includes a frame-Work 1 comprising the spaced uprights 2. 2, etc. At the left said uprights Vsupport a holder or univinding roller 3 upon which the paper previously prepared, as in 'the niannervabove described, is rotatably supported, when in Toll form. or acrosswhich it passes if it is to be passed directly from the printing for: design applying apparatus to the bath of dye. To the right of said roller 3 said uprights support a series of stretcher or ironing rollers 5, 5, 'the strip or run of material 6 being passed respectively under v and over alternate rollers. Beyond the Ansuch as alcohol. To the solution may be added a small proportion of glycerine, ap-

A proximately five per cent, to give the desired flexibility to the coloredpaper.

Upon emergin from the tank the dyed material is passe between a pair of adjustable pressure rollers 10, 11, the pressure of which may be regulated tocontrol the amount of dye to be squeezed out and returned'to the tank along the apron 19.

The web of material or paper is then dried, preferably by being passed through a hot air box or oven 20. The air in said oven is maintained at a constant heat by l the inflow of heated air from the inlets 21,

heated air being supplied from a suitable source, not shown. The oven is rovided in its upper surface with a suitab e outlet and exhaust pipe 22 for conductin away the foul air and gases. The colore paper or web travels continuously through the oven and passes above a roller 23 journalled in the rear wall thereof. The extent and rate .of travel and the degree of heat are such that the )paper will have been entirely dried. before .arriving at said roller 23. It

is thus apparent that the moist dyed web after leaving the ressure rollers 10 and 11 has no' contact wit any supporting or .other surface until said oughly dried.

sheet material is passed through a series of cooling lchambers 24. The air in said chambers may be kept in motion by a blower 33 to aid in tlie cooling. When Asuch blower is employedthe chambers 24 desirably are provided with inter-communicating openings (not1` shown) in the lower' portions thereof, the outer wall of thei outermost "chamber 24 having a similar opening for the exit of the cooling air. Near the top and the bot-tom, of each of said cooling 'chambers are rotatably mounted the coolin `chamber rollers 25. The strip of materia is` festooned about said cooling rollers v, through successive uchambers and is finally led out and wound upon the rewinding roller 26'rotat-ably mounted in a suitable standard 27.

A suitable source of power such as an electric motor 28 is provided. having a driving connection, shown as a lbelt 29, with a l pulley upon the shaft of the lower pressure roller 11. Said pulley 30 also'supports onepaper has been thor-- f its heretofore objectionable characteristics, Beyond the drying oven the runpof dyed end of abelt 3l leading to the rewinder 26 and passing about a pulley 32 coaxial with the same. The rewinder and the pressure rollers are thus driven at the same relative speed causing the run of sheet material to be drawn evenly at a constant rate past the ironing rollers 5, through the bath of dye, between the pressure rollers, through the dnying oven and subsequently through the cooling chambers until rewound upon the roll 26 in finished condition. VObviously the dyed and cooled run of paper or other sheet material may be cut into sheets or otherwise packaged after leaving the cooling chambers, if not desired in roll form.

The resulting product is a web of sheet material having a basic or body color of uniform hue and tone but in which appear designs or configurations blendingtogether in a singularly striking and attractive manner. In Fig. 5, illustrating a portion of the finished product, the horizontal lines indicate a uniform color received from the dye. The effect` is particularly pleasing where metallic or lustrous coating materials are included in the pre-applied designs or configurations, as above disclosed, the same beingapplied vprior to the dyeing operation. The dye modifies the sheen of said coating materials, while still permitting them to show in or through the basic color, presenting patches or mottled portions of lustrous and changing appearance as the light may strike them differently. In addition 'the dye acts as a preservative coating or binder to/fix said metallic materialsv which are thus prevented from readily rubbing` off' from the surface of the finished material. The decorative feature of said material is 'thereby made permanent while such as its -proneness to rub off and to soil contacting objects, are obviated. Paper or other sheet material produced in accordance with my process above described is particularly useful for forming coverings, wrappers, and the like.

My invention is not limited to the embodiv paper suitable for covering, binding and` like purposes which comprises printing or otherwise forming on one4 or both surfaces of said web configurations in a metallic er lustrous coloring material optionally in com bination with other configurations of one or more non-metallic colors contrasting with the color of the untreated paper, mounting said i congurated paper in position for feeding, drawing the sanne out into a. web conducting said webv through a bathof dye differnary to packaging for storage or shipment.

In -testimony whereof,' I have signed my name to this specication.

THOMAS M. ATKINSON.

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