US1858673A - Transfer - Google Patents

Description

May 17, 1932.

W. S. LAWRENCE TRANSFER Filed May 7TORNEKS Patented May 17, 1932 WINTHROP GRAPH COMPANY, 0F NEW YORK,

STANLEY LAWRENCE, OF BROOKLYN, NEW YORK, ASSIGNOR '.lO KAUMA- N. Y., A CORPORATION OF NEW YORK TRANSFER application led May 3, 1929. Serial No. 360,305.

My invention relates to a new and improved transfer.

One of the objects' of my invention is to provide a new and improved multi-colored transfer, and'in particular a new and improved two color transfer.

Another object of my invention is to provide a heat transfer which shall make a very clear and distinct impression so that it can be used to mark fabrics having a complicated and confusing pattern.

Other objects of my lnvention will be set forth in the ings,

is intended t not to limit Fig. 1 is following description and drawit being understood that the above gend eral statement of the objects of my invention o generally explain the same and it in any manner. an elevation showing how the primary element on the transfer is applied to the paper base.

Fig. 2 is a sectional view on the line 2-2 of Fig. l.

Fig. Sis an mary element ground.

Fig. 4 is a of Fig. 3.

elevation showing how the priis overprinted with a backsectional view on the line This ethylated product can be Fig. 5 shows how the transfer'marking is applied to a fabric.-

Fig. 6 is a sectional view on the line 64-6 of Fig. 5, the pressing iron being also diagrammatically shown.

In the drawings, the respective parts are indicated by suitable legends.

It has heretofore been a serious problem to produce transfers' which could make a clear impression upon materials woven with complicated patterns.

transfer which shall produce an emmake .a bossed lmpr It has been proposed to ession orto increase the size of the transfer'.A Itis not always possible to use a transfer of the embossing type, and it is usually undesirable to make the transfer too It has been proposed tovmake two ers for this purpose, but it .was

In order to provide a satisfactory two color transfer, Il have found it necessary to use a tough plastic slow-fusing composition for making the impression of the trade mark or design, which constitutes what may be called the primary element of the transfer. I have also found it necessary to combine this type of composition for the primary element of the transfer with, a soft waxy quickly melting marking composition for making the background.

- I prefer to print a mixture of rosin and wax, combined with suitable coloring ingredients, for forming the readily fusible background. Any suitable 4quickly-fusing composition may such compositions art per se.

The primary element of the two color transfer is preferably made from an ethylated cellulose product sold in the trade as A. T. cellulose. This 4is a fine powder consisting of intermixed brownish and whitish particles.

readily distinguished from cellulose nitrate, because cel lulose nitrate is sold in the form of filaments. The ethylated cellulose differs from cellulose acetate because the ethylated cellulose particles are harder and form less of a pulpy mass. Likewise, the ethylated cellulose can be dissolved in numerous solvents in which neither cellulose acetate nor cellulose nitrate are soluble, such as xylol and other benzyl derivatives, such as toluol, for example. As an equivalent for the ethylatedcellulose for this purpose, I can use a product sold under the trade name of benzyl cellulose which has substantially the same physical and chemical properties as the ethylated cellulose, save that the benzyl cellulose powder consists of relatively large coarseparticles intermixed .with liner particles. The ethylated cellulose being well known in the and the benzyl cellulose begin to soften at about 150 C., but they then begin to decompose so thatit is not possible to liquefy these products without decomposing them. However, -these substances can be heated to all ordinartemperature without decomposing,

and wit out melting).

In order to produce a slow-melting composition with the use of these cellulose prod- Lindol consists essentially of tri-cresyl phosphate.

Hence, it is not necessary to mix or combine the ethylated cellulose or the benzyl cellulose with a resin. By intermixing these preferred cellulose derivatives .with a sufciently large proportion of a suitable plastercizer, such as lindol for example, and with a sufficient quantity ofv relatively volatile solvent, a iiexible marking transfer composition can be secured. l

However, in order to secure an impression of relatively low penetrating power, I prefer to use the following 100 parts of ethylcellulose.

90 parts of high meltin cumar. parts of butyl carbito 75 parts of ethyl abietate (or lindol).

' 35 parts of No. 6 Lithographie varnish.

Likewise, a quick-fusing composition for the background can consists of the following:

100 parts of rosin.

25 parts of beeswax. 30 parts of ultramarine blue.

The trade name Cumar refers to paracoumarone resin. The trade name Butylcarbitol refers to the mono-ethyl-ether of diethylene glycol. The trade name Lindol refers to tricresyl phosphate.

' In order to make the improved two color transfer, an ordinary) paper base` is first printed with the prlmary element or design, by means of the ordinary intaglio method, such as the use of the ordinary intag 'o roller engraved in the well lmown manner.

The background is now printed with the soft readily fusible composition by .the use 0f the same intaglio printing method.

In order to apply this transfer to a piece of fabric, the ink side of the paper transfer base is applied to the fabric, and the other side of theY transfer base then has a hot ironl applied thereto. That is, the primar element and the background can be release by heat f and pressure.

The-softwaxy background first melts and thoroughly penetrates the fabric.v The less fusible designv or primary elemen then melts, butl it does not penetrate the fabric, because the fabric has already become either wholly or partially saturated at this polnt with the dark background composition. Likewise, the composition forming the printed letters ofthe design or the like, are relatively non-penetrating and infusible, as pre- I could also use two very slowly fusible compositions which would not run into each other.

I have show n a preferred embodiment of my invention, but it is clear that numerous changes and omissions could be made without departing from its spirit.

I claim:

1. A heat transfer having a base on which a primaryelement is printed with a fusible composition, and a background element which overlays said primary element, said background element being printed with a composition which melts at a lower temperai ture than said first mentioned composition,

said primary element and said background element being releasable from said base by means of heat and pressure.

' 2. A heat transfer comprising a paper base having a design printed thereon by I means of a fusible composition, s aid design being overprinted with a second fusible cornposition which melts at a lower temperature than the first mentioned composition, said debeing releasable rom the base by means of heat and pressure.

3. A heat transfer comprising a paper base Vhaving a' design printed thereon by means of a fusible composition which includes a cellulose product, said designbeing overprinted with a second design comprising a fusible penetrating composition, said last mentioned,

- sign and the over rinted part ofthe' transfer 1 melted while the transferis applied, said primary element and said background being releasable from said base by means of heat and pressure.

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