- Pressemitteilung BoxID 242058
Noise-quenchers in curtain quality
Weisbrod-Zürrer launches new sound-absorbing curtains in Trevira CS
Annette Douglas has developed the collection in conjunction with the Swiss test institute Empa under the brand name "Annette Douglas Textiles Acoustics®". Weisbrod-Zürrer AG is producing and selling it exclusively under the collection name Silent Space.
Textiles as important sound absorbers
Noise is annoying. It interrupts communication, reduces productivity and tires people out - in extreme cases it can even make them ill. Sound-absorbing surfaces are therefore needed in rooms where people work, talk to each other or are trying to relax. These decrease reverberation (echo) and so make rooms quieter. However, so-called acoustically "hard" materials such as glass and concrete, which are commonly used in interior design, scarcely absorb sound at all. Heavy curtains made of material such as velvet are often used to absorb sound. On the other hand, lightweight and transparent curtains are acoustically almost useless. At least they were until now. Previously, the principle held that the more sound it was necessary to absorb, the heavier and thicker the fabric had to be. Now there are curtains with a drape weight that can absorb up to five times more noise than their conventional equivalents, and yet let daylight into the space.
Textile development on computer
The first acoustically optimised lightweight textile resulted from the successful combination of computer modelling, acoustic measurement and textile expertise. Working with Empa, the project leader and textile designer Annette Douglas succeeded in converting the new findings into weaving techniques. On the basis of numerous acoustic measurements made on various samples specially woven by Weisbrod-Zürrer, they were able to gradually optimise the acoustic properties of the fabric. An the industry partner involved in the project, Weisbrod-Zürrer then adjusted the sophisticated manufacturing process so that the industrially-made curtains actually display the required acoustic characteristics.
Massive interest in contract sector
Weisbrod-Zürrer aroused enormous interest following the market launch of the collection with the three qualities Streamer, Liquid and Whisper. Even the experts were enthusiastic, reports Empa. "Acousticians are pretty astonished when they see the readings we are achieving with the new curtains in the reverberation room. says Kurt Eggenschwiler, Head of Empa's "Acoustics/Noise Control" Division. The new textiles can be used in a variety of places where there is a need for sound insulation, such as offices, living rooms, restaurants, hotel lobbies, seminar rooms and even multi-purpose auditoriums. They are often the deciding factor in satisfying the acoustic requirements and regulations that apply to these rooms. But one can well see their use in the private sector as well.
About Weisbrod-Zürrer AG:
Founded in 1825 the weaving mill of Weisbrod-Zürrer AG has its head offices in Hausen (Switzerland), with a workforce of 120. It also has agents in 25 countries. There are three textile departments (decorative fabrics, women's wear fabrics, ties and accessories), occupying a total of 65 modern Jacquard and dobby machines. Decorative materials make up the largest part of turnover. The company also operates a fabric and flags store.
Weisbrod-Zürrer markets annually over one million running metres of fabric, 50% of which they make themselves. Exports account for 90% of turnover, circa 16 million Fr, with Germany, Japan and China the most important markets. Around a million Swiss francs are invested annually in development and modernisation.
In its decorative fabric sector Weisbrod-Zürrer offers a comprehensive Trevira CS collection.
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