Page 108

Raw materials for fabrics Perhaps you would prefer to choose from the fabulous warm fabrics in the Leolux collection: a beautiful corduroy, roughly woven wool or cotton fabric, a fabric with a pattern or a multicolour fabric? The raw materials with which an upholstery fabric is made determine the characteristics and maintenance instructions. We would therefore like to provide you with further information on them. Raw materials for furniture upholstery Raw materials can be divided into wool, mohair and cotton (the natural fibres), and viscose, polyester and acrylic (the manmade fibres). The latter are also often sold under brand names. A famous example is Dralon, which was so well-known that it became virtually synonymous with manmade fibres. Wool Woollen yarns are spun from the fleece of sheep. When healthy sheep are shorn and the fleece is not mixed with lesser qualities, we are permitted to call it pure wool. Pure wool is long fibred and durable. It is resilient and therefore doesn’t flatten easily when in use. The dirt-repellant properties of wool, especially pure wool, are common knowledge. “Wool,” it is said, “doesn’t soil nearly as quickly as cotton.” This is because the wool fibre is protected by a natural layer of wax: lanolin. This wax layer has a melting point of 40°C. It is also damaged by aggressive chemical cleaning agents. Woollen fabrics must therefore be handled with care.

Cotton This is also a natural fibre, but it is vegetable in origin. Cotton yarns are spun from the seed bolls of the cotton plant. The fibres of these bolls are 15-50 mm long. They have a natural tendency to curl, which makes them easily blend together during spinning, and the tensile strength of the better qualities is excellent. This is why the back of pile fabrics, and the web of woollen fabrics, are often made from cotton. Cotton fabrics have a lower degree of colour-fastness than woollen fabrics. They therefore need more protection from direct sunlight. Man-made fibres Acrylic, polyester, viscose and other synthetic fibres have great tensile strength. They can easily be dyed in lovely colours and achieve high levels of colour fastness. Drawbacks are that they often have a hard, metallic gloss, easily pick up static electricity and that their capacity to absorb moisture is low to very low. For that reason synthetic fibres are almost always mixed with cotton or wool. Another practice is to mix a number of man-made fibres such as viscose, polyester or acrylic because their individual properties, such as tensile strength, durability, colourfastness, resistance to soiling and moisture absorbency, can vary considerably.

Microfibres This is the collective name for upholstery materials which are made of polyester and polyether microfibres. The thin fibres are over 200 times thinner than woollen fibres and aren’t woven, as the name “non-wovens” already indicates, but bound together in an ingenious chemical process. This process produces an ultramodern product of extraordinary softness and high lightresistance. Furthermore, these upholstery materials are easy to clean. A well-known example is Alcantara. Trevira CS A number of Calata fabrics from Leolux are woven in the high-quality, user-friendly and low-maintenance Trevira CS. These fabrics satisfy the highest international fire safety standards. The yarns are produced in molecular form to maintain their fire-retardant properties for their entire lifetime. The fabrics from Trevira CS offer a perfect balance between comfort and safety. When choosing Leolux fabrics, you know that these fabrics meet the very highest requirements for durability, colour-fastness and fire - resistance, even though fabric upholstery – depending on the use – is, of course, less durable than leather.

Quality woven fabrics 214 | Facts and backgrounds

Leolux design collection 2012 - design furniture  

Leolux offers you millions of options: coverings, colours, different variants and countless comfort options based on which you can put your...