Three in one: sizing, grafting and fire retardant treatment for producing fire-resistant textile material
Аннотация
In the weaving industry, cotton yarn undergoes mandatory sizing to uniformly pass the threads through the mechanisms of weaving machines, reduce breakage and improve the weaving process. Sizing is only necessary for weaving, and then sizing substances are removed from the fabric. With a successful combination of the sizing process and special processing of fabrics, significant progress is achieved in the technology of manufacturing fire-resistant fabrics and a significant economic, environmental effect. The purpose of the study is the development of a fire-retardant composition based on collagen, a method of grafting collagen to cellulose at the stage of sizing cotton yarn and obtaining fire-resistant textile material. By grafting a sizing composition containing collagen, polyacrylamide, boric acid, urea and potassium persulfate to cellulose, a highly effective fire-resistant material was obtained. The introduction of collagen and polyacrylamide in the composition sticks together the fibers of the yarn, at the same time makes the cotton material non-flammable when exposed to direct fire, reduces the time of smoke and the coefficient of smoke formation, which made it possible to obtain fire-resistant textile material belonging to a high category. By combining the processes of sizing and fire retardant processing of the main and weft yarns using biodegradable collagen, the technological operations of the production of fire-resistant material are reduced, which contributes to the conservation of natural resources and the solution of an acute environmental problem.