Abstract: This invention relates to a formulation material and its method useful in forestry firefighting, the formulation material comprising: (a) an anhydride copolymer having a structural formula wherein a functional group X of said formula is at least one alkyl group selected from the family consisting of methyl, ethyl, and propyl groups! and (b) at least 0.1%, by weight, of at least one cross-linking agent for said anhydride copolymer, said agent selected from the group of cross-linking agents consisting of a biopolymer and a tannin, wherein a weight ratio of said anhydride copolymer to said cross-linking agent is at least 2:1, and wherein a total weight of said anhydride copolymer and said cross-linking agent, within the formulation, is at least 25% on an anhydrous basis.

Abstract: A dyeing apparatus and method for continuous dyeing of a fabric article with dye, the apparatus including: (a) a dyeing vessel for containing a high-density liquid; (b) a heating mechanism, thermally associated with the dyeing vessel, for heating a dye fixation zone within the vessel to a temperature above 70° C.; (c) a continuous transport mechanism for continuously transporting the fabric article, through a dye impregnation chamber, and through the dye fixation zone of the dyeing vessel, and (d) a dye-dispensing mechanism for delivering a dye liquor within the dye impregnation chamber, so as to impregnate with the dye, the fabric article passing through the chamber, and wherein the dyeing vessel is dimensioned and configured such that a height of the high-density liquid delivers a hydrostatic pressure of at least 0.1 bar gauge to the dye fixation zone, so as to effect fixation of the dye in the fabric article.