Spherical Sac Spot

Spherical bagworm spot is a term that describes an irregular spot that is spherical in shape and usually dark in color. This stain is caused by the presence of a foreign object inside a fibrous or textile material such as a bag or sweater.

The relevance of the problem of spherical sac spots is caused by the increase in the production of fibrous materials, as well as their distribution in various fields of human activity. In particular, spherical pouch stains can occur in the textile industry, where the production and processing of fabrics has been increased to previously unimaginable volumes. Fiber materials are also used in clothing and equipment for various purposes, including protection and insulation. As a result, new opportunities for foreign substances to enter