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Screw Design for Film Extrusion

(Tom’s Poly Ploys)

January 11, 2016, ... are essential for gauge uniformity. A properly designed screw, often in combination with a gear pump, enables the die to maintain a uniform thickness profile. I spoke with Walter Smith, senior process ...

World's First 9-Manifold Extrusion Die Debut

(Tom’s Poly Ploys)

September 26, 2015, ... yields very low layer thickness variation. While the degree of improvement will vary with the application, in general Nordson EDI’s nine-manifold die technology promises to reduce variation in individual ...

Dual Spiral Systems Offers Compact Die

(Coating/Laminating)

March 24, 2015, ... providing the same film properties offered from company’s traditional die. Reported benefits include: • Improved thickness uniformity • Flex crack resistance • Reduces odor and oxygen transmission ...

Slot Die Coating Technology

(Mark's Coating Matters)

July 16, 2014, ... on a back-up roll, can achieve lower coating thicknesses in replacement of the same conventional methods as direct coating. 2. Curtain. Curtain coating allows for increased production speeds. In curtain ...

Coating Matters | Stop Defects Before They Start

(Coating/Laminating)

May 26, 2014, ... surface tension, curing requirements) Substrate (thickness, roll length, surface energy, thickness uniformity, quality) Analytical Techniques Always make sure that quality can be measured and agreed ...

Web Lines | Why Is Winding Optimization Difficult?

(Web Handling)

April 21, 2014, ... a winding or wound roll as layers compress and wound-in air escapes. Your specific web’s mechanical properties are critical to any winding project. Other key web properties are thickness profile, bagginess, ...

Show Preview | CPP EXPO and PRINT 13 Share a Stage

(Print)

August 07, 2013, ... registration; High Impact, offers touch and feel to make print stand out; 99 GU, which delivers high levels of of gloss; and Variable Density, which allows for variable polymer thickness, all in a single ...

Readers Choice: Top 11 New Products of 2012

(Coatings)

January 01, 2013, ... any kind of pre-treatment or special coating—and no post-drying. Adding to this cost benefit is the fact that Nanographic images are only 500 nanometres thick—about half the thickness of offset images—enabling ...

Teknor Apex PVC Film Suited for Medical Uses

(Flexpack)

September 05, 2012, ... in thicknesses from 0.006–0.020 in. (0.15–0.5 mm), widths to 60 in. (1,525 mm), and slitting down to 2.0 in. (51 mm). The film exhibits a Shore A hardness of 81, specific gravity of 1.25, tensile strength ...

Workshop on Nipped Systems & Laminating

(Web Handling)

September 04, 2012, ... rollers. In most cases, the goal of a nipped roller system is to provide uniform pressure across the web’s width, but diameter variations, hardness variations, misalignment, deflection, web thickness ...

Coating | The Movement Toward Thinner Films and Coatings

(Coating/Laminating)

July 30, 2012, ... for these products. For example, where a 4-mil film used to be standard, an application may now require half that thickness. There are two primary drivers for this trend: the desire to reduce material ...

Landa Corp. Unveils Nanographic Printing Process

(News | New Products)

April 08, 2012, ... benefit is the fact that Nanographic images are only 500 nanometres thick—about half the thickness of offset images—enabling Landa NanoInk to produce the lowest cost-per-page digital images in the industry. ...

Slot Die Coating | The Pressure Is On

(Adhesive Coating)

December 01, 2011, ... techniques: Wipe/Contact (Direct & Indirect) | Direct coating, in which material is applied directly to a substrate supported by a backup roll, achieves coating thicknesses as low as 0.00075 in. (18 ...

Web Lines: Mission-Detect Nip Variations

(First Glance)

August 31, 2010, ... from gravity and end-loading, misalignment or uneven loading from nipping mechanisms or gap control, uneven thickness in webs and coatings, and uneven thermal expansion from poorly designed heating or ...

Web Lines: How To Control Roller Nips

(Web Handling)

July 31, 2010, ... are one of the following: You are looking for the least expensive design to push two rollers together. You want to control thickness, such as metering a coating or calendaring rubber or similar webs. ...

Slitting Nonwovens: A Slit Decision

(Flexpack)

May 31, 2010, ... critical feature of the production line is its needle punch component, designed specifically to handle the unique thicknesses and combined materials NWS produces. To provide the most uniform and even ...

Blade Coatings: Prolong Blade Life

(Slit)

May 31, 2010, ... building the final result and providing greater control over thickness and uniformity. The processes and equipment used allow the blades to be coated at temperatures less than 250 deg, in many applications, ...

Trends in technology

(Coating/Laminating)

April 30, 2010, ... fpm Quality yields >90% Improved process control Energy costs >5% of total cost Coating runs 0.5-2,000,000 sq ft Coating thickness 0.48-4 mils Product change time 10 ft Yield ...

A future for photovoltaics

(Metallizing)

April 30, 2010, ... the debate continues. What is clear is the expectation for packaging to continue to be reduced by either elimination of material layers or reduction in thickness. However, the performance of the packaging ...

Technical Report: Thin Coating Challenges

(Coatings)

January 31, 2010, ... surveyed to get their understanding of the terms. The results of the survey showed a wide variety of units are used to describe thickness. Therefore, all the units reported were recalculated to mils [0.001 ...