Abstract: A cleaning composition is provided including an alkalinity source, builder, surfactant, water, a reducing agent and amylase in the ratio of from about 1:1 to about 1:3 wherein the total amount of amylase in the composition is equal to or less than about 1.0 weight percent; and wherein the composition is substantially free of polyols, alkanolamine, phosphates, and boric acid. A method of presoaking soiled substrates is further provided. The method including the steps of providing presoak solution to a soiled substrate at a temperature of between about 65.5° C. up to about 80° C., the presoak solution including the provided composition; draining the presoak solution from the substrate; providing a detergent to a soiled substrate including the composition of the present invention; and removing or draining the detergent; and rinsing the substrate with water.

Abstract: A cleaning composition is provided including an alkalinity source, builder, surfactant, water, a reducing agent and amylase in the ratio of from about 1:1 to about 1:3 wherein the total amount of amylase in the composition is equal to or less than about 1.0 weight percent; and wherein the composition is substantially free of polyols, alkanolamine, phosphates, and boric acid. A method of presoaking soiled substrates is further provided. The method including the steps of providing presoak solution to a soiled substrate at a temperature of between about 65.5° C. up to about 80° C., the presoak solution including the provided composition; draining the presoak solution from the substrate; providing a detergent to a soiled substrate including the composition of the present invention; and removing or draining the detergent; and rinsing the substrate with water.

Abstract: Iodine and iodophor stains are masked by applying to the stain sufficient starch to impart a bluer coloration to and thereby mask the stain. The masked stain can be left as is until further cleaning or other surface repair or replacement can take place. The masked stain may instead or also be subjected to the action of a suitable decolorizing agent. Meanwhile, the masked stain typically will be much less objectionable in appearance than the original stain.

Abstract: Iodine and iodophor stains are masked by applying to the stain sufficient starch to impart a bluer coloration to and thereby mask the stain. The masked stain can be left as is until further cleaning or other surface repair or replacement can take place. The masked stain may instead or also be subjected to the action of a suitable decolorizing agent. Meanwhile, the masked stain typically will be much less objectionable in appearance than the original stain.