MATERIALS | MATERIALS TESTING & QC
Right: Nordson’s CW 9000 is a coat weight system for adhesive measurement of flexible packaging
creates optimum conditions for optical inspection from the various camera viewing angles, says Sikora. Customers now have the option to adapt the by-catch to the respective application using hybrid blowing. For rarely occurring, larger burns or metal contamination, for example, a larger ejection can be set than for small, light discolorations that are not critical. The system was showcased at Fakuma 2023
– where customers were encouraged to bring polymer samples for analysis.
DMA extension Hitachi High-Tech Science has extended its Nexta series with the DMA200, a dynamic mechanical analyser (DMA) for materials development and product quality control. DMA technology is used to measure the viscoelastic properties of materials, with a main focus on glass transition detection. It can also assess secondary transitions, material stiffness, curing levels and damping properties. It finds many applications in mechanical characterisation for applied research and R&D, including composites, plastics, rubber and film materials. The DMA200 offers increased maximum force capability and built-in efficiency with straightforward troubleshooting, seamless data exchange and easy measuring head interchangeability, says the company.
Coat measurement Nordson has developed the CW 9000, a compact coat weight system for adhesive measurement of flexible packaging made on coating and laminating lines.
Nordson worked with several OEM line manufacturers and flexible packaging customers to when developing the system. Using it, operators can immediately see key quality indicators. Coat weight and mix ratio profiles are available after a single scan – quickly providing the information needed to confirm quality and make any necessary process adjustments. A trend display shows if the coating strays from tolerance, to enable corrective actions before a problem appears. This ensures a faster startup time and reduced scrap, while minimising the use of adhesive. “The CW 9000 gives flexible packaging manufacturers accurate and fast adhesive coat weight and mix ratio measurements,” said Mark Rainville, product manager for Nordson’s film extrusion and converting businesses. The system includes the CW 9000 sensor combined with the new LPS 1000 Scanner. At the
42 FILM & SHEET EXTRUSION | January/February 2024
heart of the CW 9000 is Nordson’s infrared sensor engine. Fast, bi-directional scanning updates at the end of each scan with maximum coverage of a production run. Infrared optics are coupled with advanced algorithms to achieve measurement resolution and performance meeting the quality demands of the flexible packaging industry. Applications include clear films, printed films and aluminium foils.
Weather testing Atlas Material Testing Technology has made several extensions to its Suntest CPS+ and XLS+ xenon instruments to support testing needs. The Suntest line simulates the effects of natural
sunlight, moisture, and heat to evaluate UV durability and light stability of products and materials. While Suntest CPS+ and XLS+ models are effective on their own, the addition of SunFlood and SunCool opens up new testing possibilities. One example, relevant to plastic film, is the
SunCool air chiller extension – which is for accelerated shelf-life testing (ASLT) of consumer products with transparent packaging, such as food and beverages. A Suntest equipped with the Atlas StoreLight filter and SunCool can replicate the effect of light exposure on packaging and product stability within air-conditioned stores and supermarket shelf conditions. It can simulate a day of product shelf-life in 30 minutes; a six-month simulation can be completed in under four days.
CLICK ON THE LINKS FOR MORE INFORMATION: �
www.instron.com �
https://sikora.net �
www.hitachi-hightech.com �
https://www.ndc.com (Nordson) �
www.atlas-mts.com
www.filmandsheet.com
IMAGE: NORDSON
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