US1929394A

US1929394A - Printed regenerated cellulose and alpha method of producing it

Info

Publication number: US1929394A
Application number: US663822A
Authority: US
Inventors: Voss Julius
Original assignee: Visking Corp
Current assignee: Visking Corp
Priority date: 1931-11-12
Filing date: 1933-03-31
Publication date: 1933-10-03
Anticipated expiration: 1950-10-03

Description

Oct. 3, 1933. J. voss 1,929,394

PRINTED REGENERATED CELLULOSE AND A METHOD OF PRODUCING IT Filed March 51, 1953 PART/AL V/ICUUN Julius Voss Patented Oct. 3, 1933 UNITED STATES PATENT OFFICE PRINTED REGENERATED CELLULOSE AND A DIETHOD OF PRODUCING IT Julius Voss, Wiesbadcn-Biebrich, Germany, as signor to The Visking Corporation, Chicago, 111., a corporation of Virginia Application March 31, .1933, Serial No. 663,822, and in Germany November 12, 1931 8 Claims. (Cl. 101-426) of the invention and of apparatus for carrying out the process thereof is shown in the accompanying drawingfin which:

Fig. 1 is a perspective view of a tubular article, as a sausagecasing, marked in accordance with the invention, and

Fig. 2 is a vertical section of a vacuumized heating chamber for treatment of the material.

The invention is particularly adapted to be employed in the printing of data on sausage casings which are formed from regenerated cellulose but the invention is limited to this use only to the extent indicated in the appended claims.

It is known that one may print on sheets of regenerated cellulose with inks, colors orpaints having an oil base. These inks, colors or paints adhere to the regenerated cellulose under normal conditions and are not readily washed therefrom. Heretofore, however, if the printed regenerated cellulose were placed in hot water,

the printed data was loosened from the regenerated cellulose. Therefore, the use of linlm, colors or paints of the character described on sausage casings of regenerated cellulose was of no particular advantage as the sausages were usually subjected-to cooking and smoking operations. In the smoking operation, the inks, colors or paints had a tendency to become discolored. Therefore, it has been impossible heretofore to produce satisfactory imprints onsausage casings formed from'regenerated cellulose as the imprints would be injured or destroyed during the coohng and smoking processes.

I have now learned that the inks, colors or paints of the character described, may be treated so that they will not be injured or discolored to any appreciable extent by the cooking and smoking operations. Thus, when the inks, colors or paints of the character described are employed in the printing of data on articles formed of ,regenerated cellulose, they will resist the deteriorating efiects of the smoking and drying operations if, after a surface drying of the printed data has been effected, they are subjected for a short time to a relatively high temperature, it being preferable that the air be maintained relatively moist or humid so that the surface of the regenerated cellulose does not become too dry or brittle. For example, the imprints, a short time after the printing. operation, may be subjected for about one hour to a temperature of approximately 100 C. The imprints will then acquire such characteristics that they will withstand the cooking and smoking operations with no injury'to them. In another iorm of the invention, the printed regenerated cellulose is stored or seasoned for about fourteendays and then subjected for about one hour to a temperature of aproximately 60 C; in a partial vacuum. The imprints will then become resistant to the deteriorating tendencies of the smoking and cooking operations.

All inks or colors in which the vehicle for the pigment comprises quick-drying oxidizing oils are particularly adapted for producing imprints embodying the invention. v

In the drawing there is shown a tubular article, as a sausage casing, of regenerated cellulose having lettering as 14 formed thereon in any desired manner, utilizing an'oxidizing oil bearing a pigment. At 11 is shown a chamber or oven which may be tightly closed and the air therein rarefied as by a pump, not shown, connected to suction pipe 13. To heat the chamber '11, there is shown a coil 12 in which a heating medium as steam may be circulated whereby the temperature of the air in the chamber 12 may be raised to approximately 100 C.

. While I have shown and described certain embodiments of my invention, it is to be understood that it is capable of many modifications. Changes, therefore in the construction and arrangement may be made without departing from the spirit and scope of the invention as disclosed in the appended claims, in which it is my intention to claim all novelty inherent in my invention as broadly as possible, in view of the prior art.

Iclaim: 1. A process for producing imprints on articles of regenerated cellulose, which process. comprises drying the surfaces of the imprints, and then subjecting them to a high temperature in a relatively humid atmosphere. I

2. A procc ss for producing imprints on articles of regenerated cellulose, which process comprises forming said imprints from colors having an oil base, and then subjecting the printed matter to a higher temperature in a relatively'humidatmospher'e after the printing operation. v 4 3.4 process for producing imprints on articles of regenerated cellulose, which process comprises printing on said cellulose with a color having an oil base, then permitting the surface of the printed matter to dry, and then subjecting the printed matter to a high temperature.

4. A process of producing imprints on articles 01' regenerated cellulose, which process comprises subjecting the imprintedmaterial to a temperature of approximately 100 C. in a relatively humid atmosphere after the printing operation.

5. A process for producing substantially permanent imprints on articles of regenerated cellulose, which process includes the step of heating the printed material to a high temperature in partial vacuum.

6. A process for producing substantially permafourteen days after the printing operation, and

then subjecting them to a higher temperature than the temperature to which they are subjected while being seasoned.

8. An article formed from regenerated cellulose and having dataprinted thereon with a color having an oil base resistant to boiling.

JULIUS VGSS.

ISISOLAIMEIR 1,929,3 94.J'ulius"Voss, Wiesbaden-Biebrich, Germany. CELLULosE AND A METHOD or PRODUCING I'r.

PRINTED REGENEBATED Patent dated October 3,

1933. Disclaimer filed December 23, 1935, by the assignee, The Visking Corporation.

, Hereby disclaims claim 8 of said patent and the subject matter of said claim 8.

[W Gazetie January 14, 1986.]