ADDITIVES | ANTIMICROBIALS
ance. These can be both organic and inorganic additives to suit a given application. “These are not just additives that can be compounded into masterbatch, but may be applied post manufacturing in applications such as fabrics, textiles, powder and wet paints as well as new coatings for sustainable cardboard-based packaging systems,” he says. New applications are beginning to emerge
Above: Sanitized’s Broadtec antimicrobial product family is claimed to be effective against top left: bacteria; top right: yeasts, bottom left: mould; and bottom right: algae
later this year. The introductions include a new antibacterial chemistry that the company says can be seamlessly integrated into low temperature polymers during production for long-lasting efficacy, without affecting the texture, optical clarity, colour or durability of the final parts. “The active ingredient in this next generation technology is naturally occurring, sustainable, non-toxic, and free from heavy metals,” says Microban. “The additive also has high chemical, thermal and UV stability, and is already approved for food contact applications in the EU. This will be complemented by another new technology that has already been proven to be an effective antibacterial and antifungal, and can be easily incorporated into PVC, PP, TPU and EVA products at the point of manufacture. Suitable for both indoor and outdoor use, it has potential applications in areas such as the automotive and roofing markets.”
Right: Berry Global has partnered with Pylote to develop antimicrobial packaging such as this opthal- mic dropper
Silver alternatives UK-based Wells Plastics has been pro- ducing antimicrobial solutions under the Bactiglas brand for more than 20 years. Mike Wright, Business Develop- ment Manager for the brand, says the company recently began to explore new and innovative antimicrobial additives that could step away from the traditional silver- based additives, yet remain within regulatory (the EU Biocidal Products Regulation — BPR) compli-
22 COMPOUNDING WORLD | July 2022
across markets such as the construction sector. Wells says that incorporation of a Bactiglas additive into building materials such as cladding, pipes and flooring systems can reduce costs involved in main- tenance. “Using antimicrobial materials in construc- tion can result in more sustainable projects with a significant reduction on the environmental impact of construction,” the company says. Antimicrobial technology from French company
Pylote has been marketed since June 2020 in Coversafe antimicrobial adhesive films produced by Pylote’s partner Gergonne Industrie for applica- tion to tables and counters, windows, door handles, switches, handrails, payment terminals and the like. Since September 2020 it has also been marketed in a range of special adhesive films produced by another partner, Adhetec, for protection of airline seat shelves and screens. It has also been used since February 2021 in high protection UNS1 fabric masks by Biotex Technologie. In March this year, Pylote and packaging major Berry Global announced a strategic commercial partnership covering antimicrobial packaging solutions. The first joint offering is Activated Rispharm, a multidose ophthalmic dropper combining high barrier with antimicrobial protec- tion said to be effective against Adenovirus type 3 Virus (conjunctivitis), Escherichia Coli and Staphylo- coccus aureus bacteria. Pylote’s communications specialist Jean-Chris- tophe Huertas says the company’s technology involves the integration of mineral ceramic microspheres into materials such as plastics, paints or varnishes. “After application, the coated surfaces are activated to destroy micro-organisms. The microspheres act as a catalyst causing microbial decontamination of the surfaces and an immediate, continuous and stable
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protection against microbial contamination with a very high level of safety, efficiency and
hygiene.”
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IMAGE: SANITIZED
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