Patent ID: 7767057

Claim:
A method for deinking waste paper comprising the steps of: a) converting the waste paper to a pulp slurry having a pH of from about 6.0 to about 8.8; b) contacting the pulp slurry with a deinking blend comprising a first alkoxylated fatty alcohol having a HLB of at least 13 and a first fatty acid; and c) separating ink from the pulp slurry by flotation, wherein the first alkoxylated fatty alcohol is of the formula: R—O—[(CH 2 —CH 2 —O) n—(CH 2 —CH(CH 3 )—O) m ]—H wherein: a) R is a straight or branched alkyl group; b) n is from about 10 to about 100; c) m is from about 1 to about 35; and d) said n —(CH 2 —CH 2 —O)— units and said m —(CH 2 —CH(CH 3 )—O)— units are ordered in block or random format in any order or sequence.