News-Releases Index | Alexium International Group Ltd.
NEW THERMAL ANALYTICAL TESTING SHOWS ALEXIUM ALEXICOOL®-TREATED PILLOWS PROVIDE SUPERIOR COOLING (4/23/18)
Alexium International Group Limited ("Alexium," "the Company,"), announced today that it has
developed an innovative thermal analytical testing methodology that allows for the scientific evaluation
of the cooling capacity for phase change material (PCM) products as used on pillows and other
bedding industry fabrics. In response to the lack of defendable industry metrics to accurately measure
the cooling effects of PCM products, the Company made a significant investment in analytical
equipment to quantify the cooling performance of its Alexicool product against competitive products.
One of the more popular innovations in this fast-growing market has been the emergence of PCM
which, when applied to mattresses, pillows, and other bedding products, creates a “cool to the touch”
sensation by drawing body heat away from the material surface and “trapping” it inside microscopic
shells. The result are pillows, mattresses and “toppers” that remain cool and comfortable for an
extended period, allowing for healthier sleep.
Until recently, there has been an inability to quantify “cooling capacity” among PCM products, most
notably when it comes to measuring the intensity and duration of the cooling sensation created by
PCM solutions. This lack of performance metrics has resulted in misinformed bedding/pillow
manufacturers and underinformed end user purchasers at the retail level. It has also served to drive
down PCM prices and stagnate growth inside this up-and-coming market.
Test Methodology/Pillow Study
In response to the lack of available testing metrics to quantify PCM performance, Alexium developed a
testing protocol using a standard industry tool to quantify the cooling capacity, or enthalpic cooling, of
PCM products when applied to pillows and other bedding fabrics. As a result, using this testing
protocol, pillows treated with Alexium’s Alexicool PCM solution were shown to deliver over 500%
greater cooling capacity than commercially available pillows treated with other PCM products.
Testing was conducted on microencapsulated octadecane-based PCM in a controlled lab environment
using a differential scanning calorimetry method developed by Alexium scientists with a TA Instrument
DSC 250. The method was developed to be applicable across a wide range of fiber composition, fabric
construction, and types of PCM. The results of the testing provided a measurement using Joules per
gram (J/g), detailing the specific amount of heat being absorbed for each PCM-treated fabric. The
results, using this measuring protocol, show that Alexium Alexicool-treated pillows compare very
favourably against other similar products available on the market.
Click Here for Full Size Chart
As a result of this new test methodology, mattress and pillow manufacturers, and the companies that
supply them fabric, are now able to make informed choices about the level of cooling desired for their
products. In the case of Alexium’s PCM products, because the amount of Alexicool can be scaled up or
down to achieve a variety of desired cooling effects, fabric and finished goods manufacturers can
achieve a customized and more cost-efficient PCM cooling solution for their fabrics. This application
flexibility will also allow for the creation of additional Alexium PCM products to address a wider range
of customer markets and demands.
Dr. Dirk Van Hyning, Alexium CEO, said “The inability to measure PCM performance has been a known
gap in our industry since inception. Out of a complete void of reliable metrics was born a relentless
pursuit by our scientists to figure it out. Not only did they develop a highly accurate, quantifiable and
defendable methodology for comparing PCM solutions, but the results of our testing revealed what we
already believed to be true: Alexicool PCM not only feels cooler when compared to other PCM
products, it is cooler.”
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