Kvadrat saw the potential in an elastic upholstery and took over the marketing of Tonus from Kevi A/S in 1974. However, the quality did not match the standard required by Kvadrat and Tonus was far from the success that had been hoped for. Something was missing. Kvadrat therefore changed the combination of materials, now making it a wool blend with 90% wool and 10% Helanca, whereas it before had been 60% viscose, 30% wool and 10% nylon. This improved the quality considerably. Now things were going a little better, but there was still something missing. Twice consideration was given to simply taking Tonus out of production. As a last resort, the colour range was expanded considerably so that the selection covered a wider colour spectrum and made room for bolder and more exciting colours. Once again, Nina Koppel was behind the combination of colours and this time the success was cut and dried.
Tonus has developed into a genuine classic and is one of the preferred coverings for modern organic furniture designs that require a flexible and yet strong material. Kvadrat has sold more than 4 million metres of Tonus, and the upholstery now comprises a significant part of Kvadrat’s basis collection.
90% wool, 10% helanca
130 cm wide