The tradition of double weaving in Sweden can be traced back to the Middle Ages, when it was used in several types of mat weaving. Double weaves are characterised by two or more colours, with an almost identical pattern on each side but with variations in colour. These weaves have been considered as Swedish but may possible originate in Italy. The patterns are simplifications of flamboyant Italian weaves and usually form small, symmetrically arranged trees with pairs of birds.

Jacquard looms were the creation of inventor Joseph-Marie Jacquard. They are most commonly mechanically operated, although there are also manual examples. The loom was patented in 1805 and only seven years later there were already 11,000 in use in France. The major difference compared to traditional looms is that each warp thread can be independently controlled. In this way, as many as 1,792 warps can be controlled entirely independently of the other threads’ up and down movement. Electronically controlled Jacquard looms can control almost 10,000 threads independent of one another.

Wool fibres have small scales that move depending on the fibres moisture uptake. This makes the wool felt, which occurs to some extent during moulting, as the fibres tangle with one another and make the product dense. Wool fibres can absorb up to 40% of their own weight in moisture, while also being water repellent. The insulating properties of wool remain intact even when damp. Woollen textiles are self cleaning when exposed to air and sunlight, meaning that they require washing less often if aired at regular intervals. In the event of staining or heavier soiling, textiles can be hand-washed at 30°C or machine-washed on a wool program with a wool/fine washing powder. Textiles should be handled as little as possible during washing in order to avoid felting. Wool is resistant to rot and can be used to insulate houses or, in certain cases, can be recycled as rag paper.