US1578952A - Transfer sheet - Google Patents

Description

Patented Mar. 30, 1926.

: UNITED STATES CHARLES CAMPBEIJL, OF NEW YORK, N. Y.

TRANSFER SHEET.

" No Drawing.

, To all whom it may concern Be it known that I, CHARLES CAMPBELL,

a citizen of the United States, residing at New York city, N. Y., have invented a cer- 5' tain new and useful Improvement in Transfer Sheets, of which the following is a clear,

full,-and exact descri tion.

This invention re ates to an improved sheet material for various uses, and partie- 1 ularly to an improved sheet material for use in the making of transfer sheets such as carbon sheets used in 'manifolding.

In many m-anifolding systems in use at the present time, theblow of the machine is so heavy that the ordinary papers used in the making of carbon sheets are rapidly punched full of holes. y

The present invention aims to provide a sheet material which will be as effective when coated with the carbon or other transfer pigment as the present paper sheets, but which will be more durable.

. The invention aims further to provide a sheet material having peculiar characteris- 25 this whichadapt it for other uses besides that of a base for the transfer pigment of transfer sheets. 4

Other objects and important features of the invention will appear from the following description and claims,

In carryin out the invention I provide what is practically anabsorbent tissue coated with the carbon dope or other transfer pigment but which has preferably first been backed up with a layer of fabric, the fabric being of such a weight and character as not to interfere with the transfer actionof the absorbent tissue andbeing so connected with or applied to the absorbent tissue as not to ma e it'unnecess'arily thick or clumsy to manipulate. a t In its broader aspects the sheet material may be formed simply by asting the fabric upon the back of the absor ent tissue, which may bepaper of suitable weight and texture, but pre erably the aper is ntroduced into the fabric or the abric into the paper in the process of making the pa er.

One method of effecting this result is. to

' Application filed September 13, 1923. swarm. 662,367.

feed the fabric into theipaper making machine at a point. where the paper web is not yet completely f,ormed, in such a manner that the fabric will be filled with the pulp or other fibre used in the making ofthe :paper. Thefabric then proceedsthrough the rest of the machine with the paper. -By this method there is obtained a sheet material in which the absorbent tissue and the fabric are closely and uniformly united without the use of any adhesive, the fibres of the paper being entwined or interlaced with the fabric in the matting operation. By regulating the amount of moisture in the fabric and in the paper uniform shrinkage is obtained, thereby producing a smooth sheet. Moreover, the absorbency of the paper sheet is retained, which is of great importance for some industries.

By this method it is possible to combine light weight tissue with a light weight fabric and thereby produce a sheet material quite different from anything heretofore known inthe art.

It will be understood, of course, that various proportions of fabric and paper material may be employed, and that the invention is not restricted to an absorbent surface of paper tissue backed up with fabric or to fabric coated and impregnated, or coated or impregnated with paper pulp or fibre, and that various combinations of fabric and paper pulp or fibre may be employed such, for example, as a plurality of layers v of fabric in a single sheet, a layer of pulp interposed 'between two layers of fabric or a sheet in which the'paper is only partly,

that is, in places combined with the fabric min which the fabric is only partly, that is, 'in places combined with the paper. I

What I claim as new is:

1. A transfer sheet comprising a textile Q g i 1,578,952

2. A sheet material for the purposes (10- 4. A transfer sheet comprising a a sheet scribed, comprising a textile fabric having of fabric having thereon a coating of paupon one face a coating of absorbent tissue per, said paper being treated with a trans- 1 impregnated with a transfer pigment. fer pigment.

5 3. A new article of manufacture com- Signed at New York city, N. Y., this 11th prising a sheet offabric reinforced paper day of September 1923. impregnated with a transfer pigment. CHARLES CAMPBELL.