Patent ID: 7250126

Claim:
A method for attaching an acid-neutralizing base to filter media for a liquid filtration system, comprising providing a slurry of filter media material, mixing base material in said slurry, attracting and bindingly attaching said base material to said filter media material, drying said slurry to filter media having said acid-neutralizing base immobilized thereon, said filter media material is provided by a first set of fibers, and comprising adding a second set of fibers to said slurry to enhance retention of said base material to said filter media material, and wherein said second set of fibers have a diameter smaller than said filter media fibers, to provide a relative coarse and fine fiber matrix combination improving entanglement and capture of said particles of acid-neutralizing base material in said matrix, with said filter media fibers providing the relative coarse fibers, and said second set of fibers providing the relative fine fibers.