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Web Lines | Winding Process Fundamentals, Pt. 2

(Technical Reports)

February 18, 2013, In Part 2 of this four-part series, web handling expert Tim Walker tackles tension control from the first to the final lap of the winding roll Understanding winding, roll defects (e.g. tin-canning), ...

Eliminating Tin-Canning Rings on Your Wound Rolls

(Web Handling)

January 24, 2013, The elimination of roll rings that simulate rings on a tin soup can is a perennial problem for web handling experts. This list of possible solutions might work for you. Question: Why does my roll look ...

Web Lines | Winding Process Fundamentals, Pt. 1

(Technical Reports)

January 13, 2013, Understanding winding, roll defects, and winding-related web quality begins with understanding how the web, winder design, and process conditions combine to create the stress and strains of the wound roll. ...

WebHandlersQuiz #19: Advantages of a Nipped or Gap-Controlled Roller

(Web Handling)

September 30, 2012, WebHandlersQuiz #19: What are the three advantages of using a nipped or gap-controlled roller ahead of winding? So we're back to basics, Folks! Can you name three advantages for using a nipped or gap-controlled ...

Winding Technology | Now Directly in the Drive

(Controls)

September 19, 2012, ... times, and also the implementation of that control scheme into the overall machine design to achieve greater efficiency. Electronically controlled AC drives offer an extremely efficient means of executing ...

WebHandlersQuiz #18: Which Rolls Tighter—Paper or Film?

(Web Handling)

August 09, 2012, Which—paper or film (with equal dimensions and winding conditions)—will likely have higher internal roll pressures? WebHandlersQuiz 18 continues the Q&A format I began this past February with our quest ...

Vacumet Paper Improves Roll Quality with Goldenrod Chucks

(News | New Products)

August 02, 2012, Pneumatic mechanical drive chucks also reduced maintenance costs at coating/metallizing facility BEACON FALLS, CT | Vacumet Paper of Franklin, MA, (A Scholle Co.) has improved its roll quality and ...

WebHandlersQuiz #17: Winding at Constant Torque

(Web Handling)

July 26, 2012, If you center wind at constant torque, what is the percent change in tension if the roll diameter changes from 100 mm to 400 mm? WebHandlersQuiz 17 continues the Q&A format I began this past February ...

Static Beat | S-Wrap Rollers

(Static-Beat)

July 12, 2012, The web exits S-wrapped rollers with static on both sides. How can we neutralize this static? Web cleaners often use S-wrapped tacky rollers to clean both sides of the web, and some machines use S-wrapped ...

Goebel Offers Fast Production of Small Rolls

(News | New Products)

July 03, 2012, The KPW3 slitter/winder from Goebel features high production rates for cash register and other small rolls, plus responsive web tension control   DARMSTADT, GERMANY | GOEBEL Schneid- und Wickelsysteme ...

Splicing/Rewinding | Samsung Gumbak Invests in Third Martin RMAP

(Carton Box)

June 11, 2012, Roll change automation enables tobacco packaging company to run roll-to-roll, without having to stop to make manual splices Samsung Gumbak Card Line Co. Ltd., Seoul, Korea, has installed its third ...

Slitting/Rewinding | Trim Loss as Low as 3%

(Slit)

March 14, 2012, ... reduce the trim to 3/8 in. and reduce the total trim loss to 2.2%—a considerable difference from the 5.5% loss taken from the 18-in. roll. Initially, Etchells accounts for the differential among converters’ ...

WHQuiz Answer #7 - Large Diameter Rollers

(Web Handling)

February 22, 2012, WebHandlersQuiz 7: Rollers – Which rollers in a process will likely have the largest diameters? Answer... WebHandlersQuiz 7: Rollers – Which rollers in a process will likely have the largest diameters? ...

Slitting/Rewinding | Arkwright Improves Output with Shaft Upgrade

(Slit)

January 17, 2012, ... industry. Converted products from Arkwright typically are produced on rolls from 24–72 in. wide and are used in high quality imaging end products. Its customer base includes leading OEMs. Giorgio Girardi, ...

Static Beat | How To Eliminate Hot Rolls

(Static-Beat)

January 16, 2012, Neutralizing static when unwinding a hot roll is difficult and almost always ineffective. So, what can be done? “Hot rolls” cause many static complaints. Winding a polymer web with static creates a hot ...

Web Lines | Blocking in Rolls

(Web Handling)

January 12, 2012, Get out of the hockey puck business… Hockey pucks. That is one name for the worst case of blocked rolls. You can’t unwind them, so what are they good for? Answer: hockey pucks. Unwinding a roll should ...

Slitting/Rewinding: Converplast To Add Two Titan Models

(News | New Products)

December 07, 2011, ... mm (53 in.) and 1650 mm (65 in.)--with a maximum rewind diameter of 610 mm (24 in.). It features a 10-in. touchscreen control system and an integral edge-trim extraction system. The pneumatically controlled ...

CTC Intl. Rewinder Finishes Small Roll Labels

(News | New Products)

November 07, 2011, The Model STACRW2-6 automatic turret rewinder from CTC Intl. is said to have everything needed to automatically finish small roll labels without additional unwinding equipment. WEST CALDWELL, NJ | ...

Winding Film: How COF Properties Affect TNT

(Winding Unwinding Rewinding)

October 17, 2011, Your ability to apply tension/nip/torque winding principles to produce the desired roll hardness is affected by the film’s layer-to-layer coefficient of friction properties Your ability to apply tension/nip/torque ...

Unwinding Static

(Static-Beat)

August 21, 2011, ... to solve these intermittent static problems has caused many headaches! Process variability often causes intermittent problems. Static charges from previous operations wound into incoming rolls contribute ...