US1965289A

US1965289A - Decalcomania transfer paper

Info

Publication number: US1965289A
Application number: US667737A
Authority: US
Inventors: Ferdinand W Humphner
Original assignee: Mid-States Gummed Paper Co
Current assignee: Mid-States Gummed Paper Co
Priority date: 1933-04-24
Filing date: 1933-04-24
Publication date: 1934-07-03
Anticipated expiration: 1951-07-03

Description

July 3, 1934- F. w. HUMPHNER 1,965,289

DECALCOMANIA TRANSFER PAPER Filed April 24, '1933 iesa'ye l I l j?? We?? 2577",

Patented July 3, 1934 PATENT OFFICE DECALCOMANIA TRANSFER PAPER Ferdinand W. Humphner, Oak Park, Ill., assignor to Mid-States Gummed Paper Co., Chicago, Ill., a corporation of Illinois Application April g4, 1933, Serial No. 667,737

2 Claims.

This invention relates to decalcomania transfer paper and more particularly to a type of decalcomania transfer in which the transfer, after the paper base is moistened, is slipped olf the pa- 5 per and the bottom side of the transfer applied to the new surface.

An object of the invention is to provide a permanently flat or non-curling transfer paper upon which the final prints may be formed. Other specific objects and advantages will appear as the specification proceeds.

The invention is illustrated, in its preferred embodiment, by the accompanying drawing, in Which- Figure 1 is a perspective View of a transfer paper embodying my invention, the lacquer and adhesive layers being partially rolled; and Fig. 2, a plan view of the transfer paper, a portion of the lacquer and adhesive layers being torn away. The paper employed may be of any suitable type, a slack sized paper being preferred. To the top side of the paper, I apply a single coating of gum or adhesive, consisting mainly of a blend of animal and vegetable glues. For example, a mixture consisting of 25% of animal glue and '75% of dextrine, may be mixed with equal parts of water and to this may be added 1% of glycerine and 2% of glucose. While this composition has been found satisfactory, it is recognized that the proportions and the constituents may be varied according to the type of adhesive desired. The above mass is mixed thoroughly and then applied to the paper in one coating. The thickness of the mixture is preferably such as to permit the adhesive to flow to a flat level surface without mechanical aid. However, if desired, mechanical means may be employed to form the adhesive layer on the paper.

After the adhesive is dry, I prefer to process the paper in a suitable non-curling machine or other apparatus in order to break up the gum layer into a multitude of segments substantially uniformly distributed through the adhesive layer. In view of the fact that the construction of noncurnng machines is wen known, a detailed description of the mechanism is unnecessary. Ordinarily, the paper is drawn over a breaker bar positioned at an angle of 45 with respect to the paper and then reversed over a second bar at 45 ing. In fact, it is only necessary to break or crack the surface of the adhesive and the paper may, if desired, be passed over one edge at right angles to the grain if the paper, causing the adhesive to form a diamond effect on the adhesive coatlayer to crack and provide a substantially unform degree of cracking throughout the layer.

After the adhesive surface has been broken up with intersecting cracks throughout the layer,

I next cover the adhesive with a layer of lacquer, 3o theA constitution of the lacquer being. such as to enable it to penetrate the interstices and fill up the voids of the cracks. Also, I prefer to employ a lacquer which is sufiiciently tenacious or tough to prevent the cracks from again closing under the various conditions to which the paper may be subjected. There is atendency for gummed paper, which has been processed in a non-curling machine, to acquire under certain conditions of humidity or temperature, etc., a tendency to again roll or curl. With my transfer paper, the lacquer layer forms a wedge between each of the minute cracks and renders the paper permanently noncurling.

The lacquer layer has an affinity for ink so that upon the top of the layer, prints of various forms may be made. For example, printing for tax stamps, etc. may be formed on the top of the lacquer layer.

A lacquer of any suitable composition having the desired qualities of sufficient uidity to penetrate the interstices, suii'icient body ortoughness, affinity for inks, etc. may be employed. Lacquers having these qualities are well known and a detailed description is unnecessary. Cellulose 85 lacquers having gum constituents and suitable solvents have been satisfactorily employed. By way of example, the following constituents and proportions of a satisfactory lacquer may be stated:

Parts Nitrocellulose 12 Dibutyl phthalate 'I Resin (dammer gum) 6 Ethyl acetate 10 95 Butyl acetate 20 Ethyl alcohol 10 Toluol 35 ylacquer layer to the paper now serves as means for bonding the transfer to the new surface.V The transfer sticks tenaciously to cellophane and the like.

En the description above given, the lacquer covers the sheet or strip of paper and the individual or separate prints are formed on the sheet. Ii desired, the sheet may,r be perforated between the prints so that the separate transfers may be torn apart With their respective paper bases attached thereto.

While I have described adhesive layers and lacquer layers of certain specic compositions, it Will be understood that any suitable adhesive or lacquer for the purposes described may be employed. Also, in the processing of the paper, any suitable means for cracking .the paper so as to distribute the cracks rather uniformly over the adhesive surface may be used. The foreclearness of understanding only, and no unnecessary limitations should be understood there from, but the appended claims shoiiid he con* strued as broadly as permissible, in View the prior art.

Iclaim:

l. A decalcomania transfer comprising a paper base, a dry adhesive layer thereon, said adhesive layer having cracks therein and substantially uniformly distributed therethrough, tough lacquer body over said. adhesive and extending between said cracks, and a final print on the top of said lacquer.

2. A deoalcomania transfer comprising a paper base, a dry adhesive layer having cracks "tiaein and substantially uniformly distributed therethrough, lacquer extending over said layer of adhesive and between said cracks and having sufficient body 'to prevent the closing of said cracks, and a finali print on the top of said layer.

EERDENANF W.

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