Process for making a high pulp content nonwoven composite fabric
Patent 5389202 Issued on February 14, 1995. Estimated Expiration Date: 
June 9, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.
June 9, 2013. Estimated Expiration Date is calculated based on simple USPTO term provisions. It does not account for terminal disclaimers, term adjustments, failure to pay maintenance fees, or other factors which might affect the term of a patent.Patent ReferencesInventorsAssigneeApplicationNo. 074571 filed on 06/09/1993US Classes:162/103, Including solid non-waterlaid preform28/104, By fluid jet needling or perforating162/108, Woven fabric or parallel strands162/109, Non-uniform, irregular or configured web or sheet162/115, By fluid pressure162/125, Layers of different properties162/127, Organic additive162/128, Inorganic additive162/129, Fiber162/130, Dimension162/136, With treatment subsequent to coating162/146, Synthetic (including chemically modified cellulose)162/158, Non-fiber additive162/168.1, Polymerized unsaturated compound162/175, Carbohydrate162/181.1, Inorganic162/181.8, Clay162/181.9, Free metal or free carbon containing162/184, Application to formed web162/201, Combined processes162/204Subsequent treatment of formed webExaminersPrimary: Chin, PeterAttorney, Agent or FirmForeign Patent References
International ClassesD21H 023/24181.8 181.9 184 201 204 AbstractA high pulp content nonwoven composite fabric is disclosed. The composite fabric contains more than about 70 percent, by weight, pulp fibers which are hydraulically entangled into a continuous filament substrate. This high pulp content composite nonwoven fabric may be used as a heavy duty wiper or as a fluid distribution material, cover material, and/or absorbent material in an absorbent personal care product. Also disclosed is a method of making the high pulp content nonwoven composite fabric.Other References
Field of SearchBy fluid pressureNon-uniform, irregular or configured web or sheet Including solid non-waterlaid preform Between separately formed webs Layers of different properties Fiber Dimension Orientation Separately formed webs subsequently united Synthetic (including chemically modified cellulose) Woven fabric or parallel strands Organic additive Inorganic additive With treatment subsequent to coating Polymerized unsaturated compound Non-fiber additive Carbohydrate Inorganic By fluid jet needling or perforating | |
