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Ahlstrom Unveils Biodegradable Nonwoven

May 18, 2009

Lightweight web delivers functional benefits to converters and consumers of tea bags.

Ahlstrom will present its innovative, biodegradable nonwoven for infusion applications at the Tea & Coffee World Cup exhibition in Seville, Spain on June 7-9th, 2009. The lightweight, fine filament web is designed to deliver functional benefits to converters and consumers of tea bags, while featuring unique environmental characteristics. Now commercially available, it will be presented for the first time at a European exhibition.

“The raw material and the fine filament webs are fully biodegradable and compostable,” explained Mike Black, general manager, Food Nonwovens. “An independent LCA (life cycle assessment) carried out to ISO 14040 standards demonstrated that these webs have a lower carbon footprint compared to similar products made of oil-based polymers.” The principal ingredient is PLA (polylactic acid), a biopolymer currently derived from cornstarch. This also means that the raw material for this product is based on 100% annually renewable resources.

Suitable for conversion on tea packing machines that use ultrasonic sealing technology, the new materials complement Ahlstrom’s range of traditional heat sealable and non-heat sealable filter webs for tea and coffee. With manufacturing both in Europe and North America, Ahlstrom now offers a broad range of beverage filtration materials.

Ahlstrom infusion materials are part of the company’s Advanced Nonwovens business area and are sold globally through the Ahlstrom sales network.

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