colour & masterbatch | Update Clariant targets medical devices
Clariant has expanded its Mevopur range with a line of standard polycarbonate masterbatches and compounds for the medical device industry, where colour is being increasingly used as a device identifi er and branding tool. The company says the
Hallcrest creates a stir
Thermochromic pigment supplier LCR Hallcrest worked with marketing agency Miles Promoclean to develop a colour changing stirrer for a special promo- tion for chocolate drink company Chocomel. The Chocomel
stirrers are being used as a point-of-sale promotion. Restaurant staff serve the chilled drink in a stainless steel cup and drop in the yellow thermometer-like stirrer, which changes to an orange colour to indicate it is at the optimum serving temperature of 4˚C. “This is a great
campaign as it’s very visual” says Gilly Beaumont, marketing manager at UK-based LCR Hallcrest.
www.chameleonplastics.com 40
move offers medical device manufacturers a consistent and traceable supply of products that support medical device regulatory approval processes by carrying pre-approval to ISO10933-1 and US
Pharmacopoeia 87 and
88 (USP Class VI). This helps reduce development times and
cost and minimises the risk of change during the product life-cycle.
“Within the healthcare
sector there has been increased awareness of and much discussion of extracta- bles and leachables from plastics and how changes in the materials may often result in unintended contamination of the drug or impact on biocompatibility,” says Steve
Duckworth, Clariant’s head of global segment medical and pharmaceutical. “In addition the regulators
are aware of potential changes in the supply chain and therefore are demanding increased control. The complexity increases dramati- cally when it comes to international production and supply,” he says.
www.clariant.com
CTI launches PowerCapsules
US-based Chromatic Technologies (CTI) has launched the PowerCapsules range of thermo- chromic masterbatches, which are claimed to offer vibrant colours with optimum let-down ratios and temperature indication. PowerCapsules have been qualifi ed in PP, PE, HDPE and PS and are said to be suitable for use in a wide range of product applications, including soft drinks closures, ice cream spoons, baby
bath toys, coffee lids and soup bowls. “Our new PowerCapsules technology is
best-in-class for UV/ fl uorescent light and heat stability and also offers ‘more energy per capsule’ so customers get stronger colour or have the option of using less thermochromic material,” says CTI chief marketing offi cer Patrisk Edson.
www.thermochromicplastic.com
Maguire improves liquid dosing
Maguire Products has developed a simplifi ed peristaltic pump for dosing liquid colorants that offers improved accuracy, faster colour changes and a 35% reduction in cost. Compared with standard
volumetric pumps, the PeriStep pump is said to provide a 20% improvement in accuracy of dosing the liquid colorant into the resin. The new device includes a self-adjusting automatic speed control, while start-up setting has been reduced to a simple three-step process (the setter only inputs
INJECTION WORLD | April 2015
shot weight, liquid colour percentage and colorant density). For colour changes, the
operator simply retracts the top cover of the pump and lays a new tube over the rollers inside – there is no need to work the tube into a compres- sion zone. The tubing is
reusable and is available in three sizes to accommodate a range of dosing outputs. According to Maguire, the
key to the performance of the new pump is the use of a stepper motor to drive the central roller. The company has also reduced the number of planetary rollers and eliminated the gearbox. “The compact, streamlined design of the PeriStep pump lends itself to minimal maintenance, since there are no gears or bearings to wear out,” says Maguire Products’ president Steve
Maguire.
www.maguire.com www.injectionworld.com
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