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Purpose-built Print (Screen Printing)

June 2001
Demand for screen retrofits multiplies as printers look to satisfy process-savvy manufacturers.

by Jessica Millward, Associate Editor

WHILE THERE IS no easy-out clause when adopting a new print method, screen retrofits allow printers to make a significantly smaller leap of faith (and finance). And with manufacturers gaining awareness of its unique benefits, job-specific or brand-specific requests for screen will make the retrofit an even more appealing option.

Path of less resistance

Screen printing, in its nature, is a more niche-oriented process. As Gary Teeter, after market applications engineer for Mark Andy explains, "Printers likely to retrofit…are typically looking to expand production capabilities in order to produce very high-quality specialty labels or products, but want to test the waters before expending too much of their valuable time and money."

The impetus for expansion frequently comes from the printer's customer. As manufacturers learn to identify the type of look and feel they want for their packaging, specific requests for screen are on an upswing.

Ko-Pack Sales Director Gerry Nigg believes the addition of screen is very customer-driven, because, as he notes, "The Procter & Gambles, the Colgates, etc., are very smart, and they have educated themselves [about printing technologies]." He also cites the growing popularity of filmic substrates as a great spur for screen usage.

A screen retrofit allows printers to take smaller, sure-footed steps to screen capability. Tom Kirtz, president of Telstar Engineering, emphasizes the value of being able to simply enhance an existing press with a trained operator and an established investment in tooling.

Propheteer International VP Mike Polkinghorne agrees, suggesting, "Retrofitting a screen to an existing press might be the fastest way to bring a job in-house, and reduces the investment to get into the rotary screen marketplace." To make screen production that much easier, Propheteer's screen unit includes a sizable drip pan for catching spills, as well as a slide-out screen cartridge for off-press clean-up and set-up.

Gallus, too, has had its eye on making the addition of screen as painless as possible. Sales Manager Bob Yates describes how the Gallus EM280 now features new printing station bases which make the screen retrofitting process very simple. Also, letterpress printers looking to add screen printing to their Gallus R160s or R200s can bypass the retrofit altogether; the screen heads can be added onto the press as is.

Budget breakdown

Adding screen to a printer's roster can be done to match a range of budgets. As Polkinghorne attests, positioning the screen above a print station is the most economical option, but a self-standing screen module will yield better performance and is easier to operate. The costliest method, wherein screens are mounted on a rail system, provides greater flexibility but reduced print accuracy.
 

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