Manufacturing method and nonwoven material
November 26, 2017. 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 ReferencesMethod of forming a web of air-laid dry fibers Strength and softness control of dry formed sheets Composite sheet and method of producing same Method of manufacturing homogeneous non-woven web Process stable nonwoven fabric Method of producing nonwoven articles Laminated non-woven fabric and process for producing the same Patent #: 5733635 InventorsAssigneeApplicationNo. 952936 filed on 11/26/1997US Classes:156/148, With weaving, knitting, braiding, twisting or needling28/104, By fluid jet needling or perforating156/62.2, With formation of lamina by bulk deposition of discrete particles to form self-supporting article264/109, FORMING ARTICLES BY UNITING RANDOMLY ASSOCIATED PARTICLES264/122Utilizing diverse solid particlesExaminersPrimary: Yao, Sam ChuanAttorney, Agent or FirmForeign Patent References
International ClassesD04H 001/00D04H 005/02 Foreign Application Priority Data1995-06-06 FIAbstractA method of making a nonwoven material having good absorbency, softness and strength. A fibrous web is airlayed from fibers comprising at least one of natural fibers and rayon fibers. The web is prebonded by sequentially adding moisture on an upper surface of the web and on a lower surface of the web. The web is calendered with a heated roll a first time after adding moisture on the upper surface of the web and calendered with a heated roll a second time after adding moisture on the lower surface of the web. The web is then spunlaced.Field of SearchWith formation of lamina by bulk deposition of discrete particles to form self-supporting articleWith weaving, knitting, braiding, twisting or needling FORMING ARTICLES BY UNITING RANDOMLY ASSOCIATED PARTICLES Utilizing diverse solid particles By fluid jet needling or perforating Needling Hydroentangled Mechanically interengaged by needling or impingement of fluid (e.g., gas or liquid stream, etc.) Containing polymeric and natural strand or fiber materials Hydroentangled nonwoven fabric Containing at least two chemically different strand or fiber materials | |
