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Taking control of blown film gauge

Taking control of blown film gauge
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Taking control of blown film gauge

Product catalog summary
Overview: This document from Macro Engineering & Technology Inc. explores advancements in the blown film extrusion process, focusing on gauge control, reversible surface winders, and thermal imaging systems. It highlights the importance of precise gauge control for applications such as meat packaging and discusses various technologies and methods to achieve this.
Blown Film Gauge Control: Precise thickness control in blown film extrusion is essential for high-speed conversion and large roll diameters. The document emphasizes the cost savings and performance improvements from maintaining uniform film thickness, particularly in applications requiring specific layer thicknesses.
Sensing Technologies: The document reviews different sensing technologies used in gauge control systems, including capacitance, gamma backscatter, and infrared sensors. It discusses the advantages and limitations of each technology, stressing the importance of selecting the appropriate sensor for specific applications.
AUTOMAX Surface Winders: The AUTOMAX-SBG winder features reversible winding, allowing processors to select the film's treated side orientation. It includes gap winding mode, programmable tension controls, and automatic roll transfers, accommodating rolls up to 1.5 m in diameter and film thickness from 15 to 400 microns.
Thermal Imaging Systems: Macro's upgraded systems offer optional thermal imaging for remote monitoring of bubble temperatures. Infrared cameras provide real-time data, with alarms and notifications for temperature deviations, enhancing safety and operational efficiency.
Methods of Correction: Gauge control systems employ automatic die or air ring approaches for correction. The die-based method adjusts temperature at the die lip, while the air ring method modifies cooling air to correct thickness disparities. Each method has its benefits and limitations, such as response time and mechanical complexity.
Air Ring and Die-Based Systems: The air ring system offers faster reaction times to temperature changes and is suitable for low blowup ratios, though it requires more maintenance. The die-based ACCUPRO system uses die lip temperature zones for precise heating adjustments, providing consistent gauge control with minimal maintenance.
D10 PRO Automatic Air Ring: This system uses patented valve technology to redistribute cooling air, improving film gauge without additional air, offering excellent bubble stability and reliable gauge improvements.
Considerations for Gauge Control Systems: The choice of system depends on gauge tolerances, required sophistication, and capital investment. Understanding these systems is crucial for selecting the right solution.
Conclusion: The document underscores the significance of precise gauge control in blown film production and showcases innovations in winding and thermal imaging systems that enhance operational efficiency and product quality.
Contact Information: Macro Engineering & Technology Inc. offers customer support for technical issues, start-up, spare parts, and training, with contact details provided for immediate assistance.
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Catalog excerpts

Taking control of blown film gauge-1

Microsoft Word - 1.030-E CO2 blussers N.doc table.main {} tr.row {} td.cell {} div.block {} div.paragraph {} .font0 { font:7.00pt "Arial", sans-serif; } .font1 { font:9.00pt "Arial", sans-serif; } .font2 { font:15.00pt "Arial", sans-serif; } .font3 { font:19.00pt "Arial", sans-serif; } .font4 { font:22.00pt "Arial", sans-serif; } .font5 { font:42.00pt "Arial", sans-serif; } .font6 { font:74.00pt "Arial", sans-serif; } Letter Rnnouncing Solutions For Flexible Film Taking Control of Blown Film Gauge for tight control of the gauge distribution over the total thickness of the film. When blown film is used for specific applications, such as barriers for meat packaging,the control ofindividual layer thickness for the specialty layer is also critical and should be held to tight tolerances. Examples ofthese specialty layers include a sealant layer which has EZ-peel and antifog properties in a 3-layer PE based film and barrier layers (nylon or EVOH) in multilayer coextrusion films. With tight gauge control a more uniform performance of the film is achieved in the field. Aside from the benefits of increased product performance, there is also a significant cost saving to having good gauge. Amidst rising polymer costs and highly competitive markets a processors ability to produce film with uniform thickness has become a necessity. It's no secret that processors spend more By Andrew Erskine The blown extrusion process is used to make single and multilayerfilms that act as starting materials for printing, lamination and converting (PLC). Today's PLC industry demands blown film processors to make both exceptionally flat films that can be converted at high speeds, and large diameter rolls for minimized changeovers. These requirements call Macro Engineering & Technology Inc. 199 Traders Boulevard East Mississauga, Ontario Canada L4Z 2E5 Tel: 1 (905)507-9000 Fax: 1 (905)507-3000 [email protected] Web: www.macroeng.com MACRO MACRO ENGINEERING & TECHNOLOGY INC.

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Taking control of blown film gauge-2

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Taking control of blown film gauge-3

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Taking control of blown film gauge-4

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Taking control of blown film gauge-5

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