Welcome black! Clariant launches NIR-detectable black colorants for a wide range of recyclable polymers at K 2019
- New product range allows Near Infrared (NIR) sorting of black plastics
- Sorting accuracy verified with NIR spectroscopy to identify plastics colored with Clariant's new product range
Muttenz, October 16, 2019 – Clariant gives the recycling potential of black plastics a much-needed boost. At K 2019, it will launch the first range of near infrared (NIR)-detectable black pigments and dyes applicable to a wide variety of recyclable plastics. The extension adds another step in the right direction addressing the sorting challenge of high-appeal black packaging for recovery and recycling facilities.
Providing an alternative to carbon black, which prevents NIR sorting scanners from identifying individual plastic types, Clariant's set of NIR black colorants preserves NIR identifiability of common packaging plastics such as HDPE, LDPE, PP, PET, PS, PA and PVC, as well as those used for housing and components in computers, TVs and other consumer electrical and electronic (E&E) equipment. The creation of recycling streams for black plastics becomes more viable.
As a result, brand owners and packaging producers can still opt for the timeless, luxury associations consumers have with black and have greater freedom in their material choice when pursuing sustainable packaging commitments. A welcome advance for the increasing number of personal care, home care and food industry brands adopting ambitious targets for their use of recyclable and recycled plastics.
For packaging, Clariant's range of NIR black colorants includes new polymer soluble dye Solvaperm® Black PCR for the black / gray coloration of polyester (PET), polystyrene (PS) and polycarbonate (PC). It brings excellent color fastness to a variety of packaging including bottles for beverages, shampoos, detergents, hair gels, food and meat trays and containers for dairy products. It is food contact approved in selected countries.
New Graphtol® Black CLN pigment is especially for polyolefins – polyethylene (PE) and polypropylene (PP) – and has high fastness properties and excellent dispersion for easy and consistent coloration. It is food contact approved in selected countries worldwide.
Polymer soluble dye Polysynthren® Black H achieves high fastness black / gray coloration for packaging and E&E applications made of PC, polymethylmethacrylat (PMMA), acrylonitrile butadiene styrene (ABS), polybutylenterephthalat (PBT), expanded polystyrene (ePS) and PS, as well as PET. Of particular significance, Polysynthren Black H is one of very few colorants suitable for polyamides (PA), the largest family of engineering plastics.
Marc Zwart, Technical Manager Plastics at BU Pigments (STAR CENTER Shanghai) at Clariant said: "Optimizing plastics for recycling is crucial if we are to stop them from ending up in landfill or the environment. By offering black colorants that do not hinder the sorting process, but instead make the chosen plastic type easily identifiable, we contribute towards broader and more economical sorting and recycling of black plastic products and the prospect of greater take-up by recovery facilities. Brand owners and packaging producers selecting black would have products that are identifiable for recycling, helping to close the loop for plastics."
The sorting accuracy of Clariant's black color palette was verified with a handheld analyzer device with a technology comparable to the NIR automatic sorting systems used in recovery facilities. The analyzer for plastic/polymer identification is a NIR spectroscopy tool that rapidly screens and identifies a variety of polymers, plastics and fiber types on-site to streamline inspection without compromising accuracy and quality.
Further information on the product range is available at www.clariant.com/NIR-detectable-black-colorants.Discover more on how Clariant is supporting a circular economy for plastics through sustainable innovations and collaborations. Meet Clariant leaders and partners at our "Symphony of Collaboration" themed K 2019 media event on October 17, 8:15am media breakfast followed by 9am press conference, hall 8A / J11. Register on www.clariant.com/K2019 or by emailing Stefanie Nehlsen at firstname.lastname@example.org.
® TRADEMARK OF CLARIANT REGISTERED IN MANY COUNTRIES.
This information corresponds to the present state of our knowledge and is intended as a general description of our products and their possible applications. Clariant makes no warranties, express or implied, as to the information’s accuracy, adequacy, sufficiency or freedom from defect and assumes no liability in connection with any use of this information. Any user of this product is responsible for determining the suitability of Clariant’s products for its particular application.<br /> <br /> * Nothing included in this information waives any of Clariant’s General Terms and Conditions of Sale, which control unless it agrees otherwise in writing. Any existing intellectual/industrial property rights must be observed. Due to possible changes in our products and applicable national and international regulations and laws, the status of our products could change. Material Safety Data Sheets providing safety precautions, that should be observed when handling or storing Clariant products, are available upon request and are provided in compliance with applicable law. You should obtain and review the applicable Material Safety Data Sheet information before handling any of these products. For additional information, please contact Clariant.<br /> <br /> * For sales to customers located within the United States and Canada the following applies in addition: No express or implied warranty is made of the merchantability, suitability, fitness for a particular purpose or otherwise of any product or service.<br /> <br /> © Trademark of Clariant registered in many countries.<br /> ® 2019 Clariant International Ltd