The yarns are formed by combining the fibers. Liflet is the smallest unit and the main raw material of a textile product. There are hundreds of fibers in a pinch of cotton.

Natural fibers are obtained from animals and nature. These are the most suitable fibers for health. It is advantageous in terms of moisture absorption and static electricity. It can be easily deformed. It is often used in combination with synthetic fibers. They are preferred because they are natural but are expensive.

Synthetic fibers are durable and do not deform easily. It is not good in terms of moisture absorption and static electricity compared to natural wool. In order to eliminate the weaknesses encountered, technological developments are constantly being experienced. Sometimes it replaces natural fibers according to their place of use. Because they are synthetic, the benefits are not fully known and are therefore not much preferred. In contrast, it is generally cheaper.

In the textile sector, depending on the area of ​​use, natural fibers and synthetic fibers are brought together in appropriate conditions and in certain ratios and yarn is obtained. For example, cotton and acrylic blends, cotton and viscose blends, wool and acrylic blends, wool and nylon blends, or cotton and linen blends are generally made.

Yarns made from natural and synthetic fibers are numbered in different ways. The yarn counts affect the touch and thickness of the fabric to be woven. In general, the yarn counts are in the form of 20 / 1, 30 / 1, 40 / 1 in yarns made from natural fibers, for example cotton. As the numbers grow, the yarn becomes thinner and its weight decreases. In the case of yarns made of synthetic fibers, the yarn counts are for example 70 Denier, 100 Denier, 150 Denier in polyester. Here the yarn becomes thicker as the number increases.

Meanwhile, the smaller the yarn count, the finer the rope, the higher the price.

Fiber number tests and analyzes are also performed in accredited laboratories. The standard used in these studies is as follows:

• TS EN ISO 137 Wool - Determination of fiber diameter - Projection microscope method