Tympan
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Tympan
Pressboard Note-- We received a large mill order of Pressboard in 2021. After we received it, we were notified by the mill that a new minimum order of 40,000 pounds would be required. We probably won't live long enough to sell that much Pressboard, so we'll see how the paper company fares with their new policy.Tympan notes: We currently have all tympan in stock. SPECIAL NOTE ABOUT RUBBER BLANKETS: The special .030" thick blanket material we have been stocking is no longer available. This was one of our few imported items and the distributor has withdrawn from the U.S. market. We are trying to find a suitable replacement. Regular offset blankets which are readily available are too thick, typically .065", to work on presses with cylinder undercuts like Vandercooks that are .040".
We carry a wide selection of tympan and press packing, including genuine red pressboard, Paratex compressible packing, and mylar topsheets. We also carry genuine Vandercook top sheets, die-cut and scored for your specific model--see the Vandercook Tympan section. Need a custom sheet size Give us a call!
Press sizes are determined by measuring the inside dimension of the chase. Thus, a 10x15 C&P, also called a "platen" press, has an actual chase measurement of 10x15, and the "platen" measures 11 1/8 x 18 1/18. Please use the chase dimension only when ordering tympan for your "platen" press.
Treated Tympan is made in diecut sizes for all standard Vandercook, C&P, Kluge, and Heidelberg presses, both Platens and Cylinders. It is made with the highest degree of uniformity, and without either hard or soft spots and is .006" thick. Mylar top sheets (or tympan) serve to give sharp, clear impressions and is part of the typical "hard" packing method. It requires the use of good type or plates, and in all type forms, where old and new type, or wood type, is used, then a softer top sheet in the rubber type will work better. When ordering Mylar, specify what Vandercook press it is for and we cut it to size using original Vandercook templates. One price per sheet for any size Mylar, cut to a specific Vandercook press or as a rectangle. Maximum size on this single pricing is 25" x 41".
What to use Hard packing and hard tympan is usually preferred for most letterpress applications. Soft packing leads to type and plate wear, will not give sharp impressions, and will leave an embossed impression in the tympan and packing of whatever was being printed. Deep impression is also best achieved when the paper fibers are compressed rather than punched through the back of the sheet and the use of soft packing to achieve this is usually a mistake. The packing paper we sell is accurately made for the specific purpose of press packing, and is available in several thicknesses, and provides the essential foundation for proper printing. Don't do more than your press is capable of doing, and most table top presses are not suited for deep impression work. The key is to experiment and see what works best.
Tympan paper made in the United States is currently manufactured by the Sunshine Paper Company in Denver, Colorado. Sunshine purchased the Cromwell Paper Co. of Chicago in 1986 and acquired the Riegal line of tympan from the James River Paper Co. when that company shut down some years back. The current tympan and packing papers made by Sunshine are a mix of the Cromwell and Riegal specifications. Some of the Sunshine paper line is sold exclusively by certain distributors, like Day International. Why is Sunshine in Denver, certainly not a major graphic arts center like Chicago The owners preferred living in Colorado--the same reason we're not in Cincinnati where NA Graphics started.
Roll tympan and certain sizes of the press packing are special order. Rolls take from one to three weeks for Sunshine to ship, and press packing is about one week. Our cut sizes of press pack (TP488 and TP488a) are stock items here at NA Graphics.
Polycarbonate tympans work well with Takach