Search

Sun Chemical Announces Resistance Coatings

(Coating/Laminating)

June 19, 2015, ... to provide resistance to water, grease/oil, industrial chemicals, extreme temperatures, scuffing abrasion, and friction, the line of aqueous coatings is said to provide converters and brand owners an option ...

Web Lines | Unwritten Rules, Part 2

(Technical Reports)

June 08, 2015, ... out-of-roundness and eccentricity. Don't change the product thickness, stiffness, friction, or other major winding process variable. Wound rolls know what you've done to them. Like the rings of a tree ...

Web Lines | Unwritten Rules, Now Written

(Technical Reports)

April 27, 2015, ... plans. It may be possible for a brake or motor to decel rapidly, but if the roller shaft snaps, core chuck fails, or the internal friction in a wound roll is insufficient, aggressively stopping the motor ...

Toray Announces Metallized BOPP

(Materials)

March 30, 2015, ... friction (COF) and is heat-sealable. Company says product offers high moisture-, aroma-, and flavor-barrier protection, and its excellent barrier durability makes it the preferred choice for applications ...

Should Unwind Tension Be Lower Than Winding Tension?

(Web Handling)

March 26, 2015, ... some films, slip additives or coatings change over time, dropping the product’s inside to outside coefficient of friction and again lowering the roll’s torque transmission capacity. When a customer has ...

The Benefits of Ozone in Extrusion Laminating

(Tom’s Poly Ploys)

February 26, 2015, ... the polymer sees in the valve.  Increased shear increases friction and pressure in the process, and subsequently increases melt temperature.  In the process of doing this, polymer oxidation and degradation ...

Do Your Homework to Solve Telescoping Roll Problems

(Web Handling)

December 03, 2014, ... width, roughness, coefficient of friction (side A to side B)? What winding conditions or roll geometry have more telescoping? Core material, core inner and outer diameter, core support method (chucks ...

C&D Printing Installs Kluge Folder/Gluer

(Carton Box)

October 22, 2014, ... bottom boxes, sleeves, and various other products. The OmniFold serving C&D Printing is configured with both a vacuum feeder and a friction feeder to feed the widest variety of substrates, shapes, ...

DFE Product Silences Noisy Brakes

(Controls)

October 11, 2014, Silencer friction pads are said to be a cost-effective and consistent solution to screeching or squealing from unwind brakes   ROCHESTER, NH | Dover Flexo Electronics (DFE) has developed Silencer ...

Montalvo Video Details Range Expansion

(Controls)

June 24, 2014, ... high mass rolls at lighter tensions (i.e. films and foils), run low torque and tension applications that require high torque to stop (i.e. sheeters), and reduce friction pad wear. According to president ...

AWA to Offer Manual for Heat Shrink Sleeve Labels

(Label/Tape)

June 18, 2014, ... shrink conditions • Coefficient of friction of printed surfaces • Label sizing and shrink percentages • Common sleeve label defects This 1st edition contains nine test methods, and AWA says it ...

Flint Announces New Opaque White Ink

(News | New Products)

May 31, 2014, ... Also said to offer very good flowout, opacity, and whiteness. Whites are provided in a range of Coefficient of Friction (COF) values. Because the UV LED curing process does not generate any IR heat, ...

Web Lines | Wrinkling?

(Web Handling)

May 18, 2014, ... They can look at your product geometry, mechanical and frictional properties (of your rollers), roller factors, web path geometry, and process conditions (speed/tension), then predict wrinkles from roller ...

Sun Chemical Showing Broad Line at Interpack

(Coating/Laminating)

May 10, 2014, ... while retaining or improving barrier properties. Other key products that will be featured include SunSys coatings said to deliver resistance to moisture, oil and grease, heat, friction, and industrial ...

Zero-Max Torque Limiters Called Dependable

(Controls)

April 29, 2014, ... and repeatable disengagement features and can withstand corrosive environments and operate dependably in wide temperature ranges. Company reports they are an excellent substitute for friction-type torque ...

Web Lines | Why Is Winding Optimization Difficult?

(Web Handling)

April 21, 2014, ... thermal or moisture expansion, frictional properties, surface roughness, and viscoelasticity. (Winding is getting complicated already.) Tension Control: How is tension created and what is it as every ...

Do You Need a Roller That Is Chillin' and Groovy?

(Web Handling)

March 30, 2014, ... the free air lubrication calculator at Prof. Stephen Abbott’s website. The Air Lubrication Calculator (ALC) will calculate the height of an air lubrication layer, estimate coefficient of friction loss, ...

Ross Printing Expands Services with ComFold

(Carton Box)

March 12, 2014, ... of the ComFold allowed the company to configure a system that would meet its current needs and also allow for expansion and added capabilities in the future. The friction-fed ComFold is said to be an ...

Web Lines | War on Bagginess

(Web Handling)

February 26, 2014, ... off-line thickness measurement to understand the profile variation in the time span of winding a single roll. Understanding of material properties, including coefficient of friction, surface roughness, ...

Web Lines | How the Open Loop Torque Control Sets Winding Tension

(Web Handling)

December 09, 2013, ... compared to many slitters where tension is controlled by friction torque systems, but it requires a great deal of trust that the slitter control engineers understand what motor control parameters create ...