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Web Lines | Unwritten Rules, Now Written

(Technical Reports)

April 27, 2015, Here are 3 web handling rules Tim Walker keeps forgetting to tell you Here are 3 web handling rules Tim Walker keeps forgetting to tell you. There are a few things that I almost always forget to ...

Process Sensors to Show Web Profile System

(News | New Products)

January 31, 2015, The Guardian Cross Direction Web Profile system will be one of the stars of the company’s display at ICE USA 2015   MILFORD, MA | Process Sensors Corporation will display its Guardian Series of web ...

Flint Holds Narrow Web Conference

(Narrow Web)

January 20, 2015, Conference, held in Sweden, reportedly offered a forum for shared perspectives on narrow web trends, challenges, and opportunities   TRELLEBORG, SWEDEN | Flint Group hosted a narrow web conference ...

Web Lines | The Case of the Missing Pacer

(Technical Reports)

July 07, 2014, ... force is less than the winder tensioning force, the brake will slip and the rolls and web will accelerate. So to get this two-torque rewinder up to speed, first the winder-created tension must be greater ...

Is There a Doorman at Your Winder or Do You Let Just Any Web Get In?

(Web Handling)

May 15, 2014, Web handling expert Tim Walker of TJWalker + Assoc. and author of "Web Lines" describes the function and benefits of a nipping roller at winding. I was just reviewing a lab coater line the other day. ...

Web Lines | Why Is Winding Optimization Difficult?

(Web Handling)

April 21, 2014, Winding is hard work—hard on your brain. Are you ready to get your Ph.D. in web handling? Winding is hard work—hard on your brain. In your education of web handling, nearly all learned out of the university, ...

Web Lines | War on Bagginess

(Web Handling)

February 26, 2014, ... of process and material properties that create bagginess forms—bagginess continues to plague many web producers as an uncontrolled variation in product quality. I have worked closely with Dr. Kevin Cole ...

Web Lines | Winding Process Fundamentals, Pt. 4

(Web Lines)

September 23, 2013, In Part 4 of this four-part series, web handling expert Tim Walker explains how TD variations in equipment or web properties affect roll structure How do transverse direction variations in equipment ...

NDC Products Aid Ion Battery Web Gauging Applications

(Coating/Laminating News)

September 07, 2013, New technologies are said to help manufacturers of lithium ion battery components achieve high quality on film extruders, coaters, and press lines   IRWINDALE, CA | NDC announces new on-line measurement ...

Web Lines | Curl Mechanics Pt. 2—Transverse Direction Curl

(Web Handling)

August 26, 2013, In Part 2 of this four-part series on curl, web handling expert Tim Walker tackles three common sources of TD curl. Transverse direction curl is a little more difficult to understand than machine direction ...

Web Lines | Curl Mechanics Pt. 1—Machine Direction Curl

(Coating/Laminating)

July 08, 2013, In this first part of a four part series on curl, web handling expert Tim Walker discusses curl in coated and laminated products In this first part of a four part series on curl, web handling expert ...

Webex Carbon Fiber Rolls Have Custom Finishes

(News | New Products)

June 05, 2013, Outer layer is said to provide extra durability and to offer surface suited for special coatings   NEENAH, WI | Webex offers carbon fiber rolls with an extra-thick, outer epoxy layer said to protect ...

Web Lines | Winding Process Fundamentals, Pt. 3

(Web Handling)

May 08, 2013, In Part 3 of this four-part series, web handling expert Tim Walker answers the question: How do dimensional changes within a roll (e.g., compression) change roll strains and stresses? In Part 3 of ...

Enercon Webinars to Cover Treating & Web Handling

(News | New Products)

February 11, 2013, Corona treating basics and handling thin films in and out of treaters are the subjects of two March webinars   MENOMONEE FALLS, WI | Enercon reports two upcoming webinars in March. • March 7: “Corona ...

Web Handling | To Break or Not To Break--What is the Tension?

(Web Handling)

December 02, 2012, Determining at what tension a web will break or deform comes down to a material's property. Actually, the question is: What tension will cause a web to break or deform? It all comes down to a material’s ...

Web Lines | Why Bigger Cores?

(Technical Reports)

November 15, 2012, ... is a gigantic core with one wrap on it. Think about it. Bigger cores have fewer layers for a given length of web on the core. Fewer layers of build up mean less magnifying of long-term thickness variations, ...

Web Lines | Why Avoid Nips?

(Web Handling)

September 24, 2012, I recently posted my top three blind recommendations for any process. If you are a long-time reader of Web Lines, you will know why to avoid nips and use bigger cores, but if not, here is a quick refresher ...

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 ...

Web Lines | Test Your Web Handling Knowledge

(Web Handling)

February 14, 2012, Can you pass this 20-question quiz to prove you understand basic principles of web handling? Can you pass this 20-question quiz to prove you understand basic principles of web handling? What if a ...

Web Lines | Blocking in Rolls

(Web Handling)

January 12, 2012, ... it will concentrate all the available tension to one spot or the web’s edge, likely yielding or breaking the web. I’m not an expert is the chemistry of bonding, but I know from experience that there ...