The present invention relates to a biodegradable paper sheet for filter element comprising refined cellulose fibers and hydrophobic fibers.

The present invention relates to a biodegradable paper sheet for filter element comprising refined cellulose fibers and hydrophobic fibers.

Fibrous structures containing filaments and solid additives, and more particularly to fibrous structures containing filaments and solid additives wherein the fibrous structure has three or more regions that exhibit different characteristics and/or properties and methods for making same, are provided.

Fibrous structures containing filaments and solid additives, and more particularly to fibrous structures containing filaments and solid additives wherein the fibrous structure has three or more regions that exhibit different characteristics and/or properties and methods for making same, are provided.

Multi-ply fibrous structures and more particularly multi-ply fibrous structures containing three or more different fibrous structure plies, and methods for making same are provided.

Multi-ply fibrous structures and more particularly multi-ply fibrous structures containing three or more different fibrous structure plies, and methods for making same are provided.

Fibrous structures containing filaments and solid additives, and more particularly to fibrous structures containing filaments and solid additives wherein the fibrous structure has three or more regions that exhibit different characteristics and/or properties and methods for making same, are provided.

Fibrous structures containing filaments and solid additives, and more particularly to fibrous structures containing filaments and solid additives wherein the fibrous structure has three or more regions that exhibit different characteristics and/or properties and methods for making same, are provided.

Multi-ply fibrous structures and more particularly multi-ply fibrous structures containing three or more different fibrous structure plies, and methods for making same are provided.

Multi-ply fibrous structures and more particularly multi-ply fibrous structures containing three or more different fibrous structure plies, and methods for making same are provided.