Flame retardant treatment

A flame-retardant or fire-retardant preparation consisting essentially of an aqueous solution of ammonium sulfate, a metasilicate salt serving as a binder, and ammonium phosphate, and an ultraviolet inhibitor in said aqueous solution with said ammonium sulfate, said metasilicate salt, and said ammonium phosphate.

A flame-retardant or fire-retardant preparation consisting essentially of an aqueous solution of ammonium sulfate and a metasilicate salt serving as a binder.

A flame-retardant or fire-retardant preparation consisting essentially of a solution of ammonium sulfate, a metasilicate salt serving as a binder, an ammonium phosphate, and an evaporable liquid vehicle carrying said ammonium sulfate, said metasilicate salt and said ammonium phosphate.

A flame-retardant or fire-retardant preparation consisting essentially of a solution of ammonium sulfate, a metasilicate salt serving as a binder, and an evaporable liquid vehicle carrying said ammonium sulfate and said metasilicate salt.

An article treated to be fire-retardant or flame-retardant, said article comprising a mass of fibrous material including cellulosic fibers, and an effective amount of a fire-retardant treatment consisting essentially of ammonium sulfate and a salt which serves as a binder to bind the ammonium sulfate to said fibers, said fire-retardant treatment having been applied to said fibers as a solution of ammonium sulfate and said salt and thereafter dried.

An article treated to be fire-retardant or flame-retardant, said article comprising a mass of fibrous material including non-absorbent fibers, and an effective amount of a fire-retardant treatment consisting essentially of ammonium sulfate, an ammonium phosphate, and a salt which serves as a binder to bind the ammonium sulfate and the ammonium phosphate to said non-absorbent fibers, said fire-retardant treatment having been applied to said fibers as a solution of ammonium sulfate, ammonium phosphate and said salt, and the mass of fibrous material having been thereafter dried.

A process for treating a fibrous article comprising wetting the article with a flame-retardant or fire-retardant solution consisting essentially of an evaporable liquid vehicle, ammonium sulfate, and a metasilicate salt serving as a binder to bind said ammonium sulfate to fibers of said article, and evaporating the vehicle from the wetted article.

A process for treating a fibrous article comprising wetting the article with a flame-retardant or fire-retardant solution consisting essentially of an evaporable liquid vehicle, ammonium phosphate, ammonium sulfate, and a metasilicate salt serving as a binder to bind said ammonium sulfate and said ammonium phosphate to fibers of said article, and evaporating the vehicle from the wetted article.