Abstract: In a first aspect, the present invention relates to an isolated aqueous enzymatic preparation obtained from the reaction of at least one oxidoreductase enzyme, preferably a laccase, and at least one natural or synthetic product, preferably a natural compound, said natural or synthetic product comprising, in the structure thereof, at least one phenol or alcohol group, which optionally has one or more hydrophobic chains, or at least one sterol group. In a second aspect, the present invention relates to the use of said isolated aqueous enzymatic preparation in the functionalization of the surface of paper or cellulosic substrates.

Abstract: A method of deinking printed paper comprises pulping the paper to form an aqueous slurry, adding a deinking additive to the paper, and removing detached ink by flotation, wherein the additive comprises an organo-modified siloxane comprising units of the formula: [R1aZbSiO(4-a-b)/2]n in which each R1 is independently selected from a hydrogen atom, an alkyl, aryl, alkenyl, aralkyl, alkaryl, alkoxy, alkanoyloxy, hydroxyl, ester or ether group; each Z is independently selected from an alkyl group substituted with an amine, amide, carboxyl, ester, or epoxy group, or a group —R2—(OCPH2P)q (OCrH2r)s—R3; n is an integer greater than 1; a and b are independently 0, 1, 2 or 3; R2 is an alkylene group or a direct bond; R3 is a group as defined for R1 or Z above; p and r are independently an integer from 1 to 6; q and s are independently 0 or an integer such that 1?q+s?400; and wherein each molecule of the organo-modified siloxane contains at least one group Z.

Abstract: A process for removing capsule oils from carbonless copy paper involving: (a) providing carbonless copy paper containing capsule oils; and (b) disintegrating the carbonless copy paper in the presence of an alkoxylated C12-14 alcohol to form a stock suspension.