**2.2. Treatment Modalities – Need for Different Textile Materials**

Several important factors must be present for a health practitioner to use compression systems, like knowing how to use different products, knowing the best available compression modal‐ ities available for the treatment, being able to identify the aetiology of the ulcer, and the willingness of the patient to agree to the commencement of compression treatment and for this to be sustained. Today, there exist several modes of compression devices. Table 1 lists some of the most common devices used for providing pressure. The basic constructions are woven or knitted. Woven construction consists of two sets of perpendicular yarns (also known as warp and weft yarns) that are interlaced together with the help of weaving process. Knitted construction consists of intersecting loops that are produced by a knitting process.


**Table 1.** Pressure devices

Nonwoven is not used for generating compression. But it does play a very important role in compression and comfort management, which is discussed in the next section. Nonwoven is commonly used for the preparation of padding material for the multi-layer compression bandaging system. In a multi-layer compression system, there exist several layers of fabrics in addition to compression layer:


**•** *Flexible cohesive bandage:* This is the last layer which is used to secure all the innermost layers in place.

The roles of each of these layers are critical in the successful treatment of venous diseases.
