velcro fastener advantages and disadvantages
Touch fasteners are easy to use, safe, and maintenance free. There is only a minimal decline in effectiveness even after many fastenings and unfastenings. The tearing noise it makes can also be useful against pickpockets
There are also some deficiencies: it tends to accumulate hair, dust, and fur in its hooks after a few months of regular use. The loops can become elongated or broken after extended use. The hooks often become attached to articles of clothing, especially loosely woven items like sweaters. This clothing may be damaged when one attempts to remove the hook and loop, even if the sides are separated slowly. The tearing noise made by unfastening hook and loop fasteners make it inappropriate for some applications. For example, a soldier in hiding would not want to alert the enemy to his position by opening a pocket.It also absorbs moisture and perspiration when worn next to the skin, which means it will smell if not washed.
Textiles can contain chemicals or compounds, such as dyes, that may be allergenic to sensitive people. Some products have been tested according to the Oeko-texcertification standard, which imposes limits on the chemical content of textiles to address the issue of human ecological safety.