Tuesday, March 31, 2015

Meat Extract and Chromolithography

A rather unusual juxtaposition of subjects, but one which is delightfully represented in a set of six cards issued by the Liebig Meat Extract Company in the late nineteenth century.

Baron Justus von Liebig was a German chemist of considerable note, considered one of the founders of organic chemistry. Concerned about providing inexpensive nutrition for Europe’s poor, he invented a method for producing extract from cattle carcasses, supposedly preserving the flavors and nutrients of the beef. The cost for the process proved considerable, but a young Belgian, George Christian Giebert, came up with a feasible plan to produce the extract in Uruguay, where land and cattle were plentiful.

In 1865, Liebig and Giebert formed the Liebig Meat Extract Company, with its factory in Uruguay, and it went on to great success. Not only did the company make its meat extract a popular item for kitchens throughout the world, but it also introduced both Oxo meat extract and beef stock cubes, not to mention Marmite (which I think is pretty awful, but which my wife loves!).

In 1872, the company started to issue promotional trading cards on all sorts of subjects, usually issued in sets of six cards on one topic. They were produced initially in lithography, then chromolithography, and finally offset printing. These cards were hugely popular and supposedly by the time Liebig stopped producing them in 1975, they had produced over 10,000 different cards!

The early chromolithographed cards are the most collectible and I was surprised and delighted when I came across a set of the Liebig cards on the subject of chromolithography. Chromolithography is a printmaking process, developed by the late 1830s, where a colored subject was produced by using multiple lithographic stones, each using a different color ink. The Liebig set, “Les Phases de la Fabircation d’un Chromo Liebig,” shows all the steps in making a Liebig trading card set. Included is a wonderful demonstration of the process, showing the development of a portrait of Liebig through six stages from just two stones to the finished image having used twelve stones.

Card 1: The first card shows the artist composing the subject in his studio. He is drawing a water color onto a sheet of paper, carefully working on an image of the exact size of the intended print. The portrait of Liebig is printed in gold and yellow and is barely visible.

Card 2: This card shows the quarrying of the limestone to be used for making the prints. Though many different stones were tested, it was limestone from Solnhofen in Bavaria which proved to be the best. The portrait of Liebig now has had red and blue ink added, and the visage is beginning to appear more distinctly.

Card 3: This image shows the process of transferring the image to the multiple lithographic stones to be used. The explanation on the verso explains that an outline of the image is transferred, in an inverted manner, to each stone which has been polished with pumice powder. That part of the image appropriate to the color for each stone is then added to that stone for a total of twelve stones. Liebig’s portrait is now quite visible, having been printed with six colors.

Card 4: This card shows the testing of the stones. Each stone is cleaned with nitric acid, so that the ink will not adhere to the stone except where the image has been drawn on it. Then the stones are tested, and the different colors combined onto sample images in sequence, working from the lightest to the darkest ink colors. Liebig’s portrait now appears with 8 colors having been used.

Card 5: Once the test stones are perfected, the final images are printed on a rotary press, being compared with the test images. Other than the placing of the paper on the press, this process is all automated. The portrait of Liebig is now almost finished, with 10 colors having been printed.

Card 6: This shows the cards being cut from the larger sheets and then packed. The portrait, with 12 stones used, is complete.

1 comment:

  1. I am really enjoying your blogs, thank you!