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Green Bay gears up for specialty labels

(Magazine)

May 31, 1996, ... to jump-start the adhesive drying process." An electric IR oven begins drying the adhesive before the the web reaches the gas-fired, hot air oven, which then completes the drying process. The 30-ft, two-zone ...

Gravure gets easier

(Magazine)

April 30, 1996, ... imprinter that eliminates the purchase and storage of preprinted web stocks. The unit can imprint crisp, clear, large and small graphics, reportedly with gravur-type print quality, on all types of paper, ...

Paper characteristics: starting the job right

(Magazine)

April 30, 1996, ... process. Web-fed jobs, in particular, must be strong enough to withstand the stress of unwind and rewind operations. Therefore, uniform strength is necessary across and along the substrate. Paper strength, ...

Custom coating operation is a clean winner

(Magazine)

February 29, 1996, ... of unwind and rewind sections, two in-line tension controls, three web cleaners, one corona treater for enhanced laydown, and five ovens for precise drying. The system is capable of combining two web paths ...

Core selection - the difference between success and failure.

(Magazine)

January 31, 1996, ... Ovality is especially critical for very thin materials, as any core that is out-of-round can stretch the substrate, producing an inconsistent product or even a web break. * Straightness is critical ...

Don't forget your unwind

(Magazine)

January 31, 1996, ... in the web alone. "This is the case for very light materials or for very wide webs in which the steel core must be of massive construction," says Wilkes. Large-diameter unwinds normally require larger ...

Flexo/screen proves to be a winning combination

(Magazine)

January 31, 1996, ... in the US and seven overseas. At its York plant, the converter has a diverse range of equipment capable of printing up to eight colors at a maximum web width of 16 in. In addition to the Mark Andy 4120 ...

Brake and clutches improve to meet industry demands.

(Magazine)

December 31, 1995, ... or in any combination, and air pressure can be varied from piston to piston as well." About 10 to 12 years ago all electro-pneumatic controllers used strain gauge transducers (transducers sense web ...

Examining trends in drives and motors

(Magazine)

December 31, 1995, ... changes in proportion to the frequency change," says Wirth. "Torque control is critical to converting applications, because that's how you control web tension. An AC motor has an inherent amount of slip, ...

Tissue converter accrues benefits of AC servo drives

(Magazine)

September 30, 1995, ... the final folder, using a 3,000-rpm digital servomotor with a 150-amp amplifier. This section comprises seven slitting knives; five slitting knives cut the single roll of tissue into six smaller webs that ...

Doctor blades are the right Rx for gravure

(Magazine)

September 30, 1995, ... the doctoring must take place close to the nip point. With a conventional blade, chatter may be a limiting factor. The web path may restrict the high contact angle on some equipment. However, the major ...

Winders/Unwinders: Gettting Better Every Day

(Magazine)

August 31, 1995, ... defects, including corrugations, delamination, crepe wrinkles, stretching, wrinkling, blocking, cigars, bursts, out-of-round or eccentric cores, and the dreaded web break. Understanding this technology ...

Training is the key to success in '90s corporate climb.

(Magazine)

August 31, 1995, ... available in our industry. Perhaps the most complete program on web handling extant is available from the engineering department at Oklahoma State University. This institution is the epicenter of what' ...

Retrofit brings older sheeters back to life.

(Magazine)

August 31, 1995, ... 0.028 in. or multiple webs) and short sheets. Start with Two Questions To determine if a knife retrofit is right for your company, you must consider the following two questions: 1. Is the existing ...

Bagmakers add a strong link to quality chain

(Magazine)

July 31, 1995, ... and centerfolder inserter; pneumatic gusset and strap presealer; V-tip and wheel gusseting; electro-mechanical edge guide and positionable centerfolder; web stopper with servo-driven perforator; and dual-station ...

Mead expands in-house capabilities with sheeter

(Magazine)

July 31, 1995, ... continues without the machine stopping and with virtually no waste. A tension-control unit ensures that the web is kept taught and minimizes lateral movement as the board enters the cutting head. Heavy-duty ...

Salvage system removes, doctors roll stock

(Magazine)

February 28, 1995, ... two regenerative dc drives coupled to a dancer system and computerized control for positive web control at all speeds on a range of substrates. It incorporates a dual-direction electronic web guide, pneumatically ...

Winding system suited for long lengths

(Magazine)

February 28, 1995, ... cantilevered unwind with programmable constant tension, auto edge guide and pneumatic peel-off lay-on roll; entry and exit s-wrap pull rolls with adjustable draw control, auxiliary web rewind for unslit ...

French plastic bag imports continue to outpace exports.

(Magazine)

January 31, 1995, ... provides for the application of adhesive and combining of three substrates in one integrated coating/laminating head. During the complete process of coating and lamination, the webs maintain contact with ...

German company develops recovery concept for plastics

(Magazine)

December 31, 1994, ... when starting the machine. The tube is formed around a former plate that controls the web by using a vacuum to ensure it follows the exact shape of the plate. The CP-28/TS machine has been designed ...