Plant for producing a fibre web of plastic and cellulose fibres
April 12, 2020. 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 ReferencesEntangled nonwoven fabric made of two fibers having different lengths in which the shorter fiber is a conjugate fiber in which an exposed component thereof has a lower melting temperature than the longer fiber and method of making same Themally formed gradient density filter Durable melt-blown fibrous sheet material Nonwoven fibrous hydraulically entangled non-elastic coform material and method of formation thereof Process for the production of a fibrous mat Process for producing fibrous mats as a starting material for compression moulded articles Process for making spunlaced nonwoven fabrics Method of manufacturing homogeneous non-woven web Hydraulically entangled, autogenous-bonding, nonwoven composite fabric Method and device for finishing thick carded fleeces InventorApplicationNo. 529362 filed on 04/12/2000US Classes:156/148, With weaving, knitting, braiding, twisting or needling19/296, Web forming28/104, By fluid jet needling or perforating156/62.2, With formation of lamina by bulk deposition of discrete particles to form self-supporting article264/121, Projecting particles in a moving gas stream442/408, Hydroentangled nonwoven fabric442/409Autogenously bonded nonwoven fabricExaminersPrimary: Vanatta, Amy B.Attorney, Agent or FirmForeign Patent References
International ClassD04H 001/48Foreign Application Priority Data1997-10-13 DKAbstractA plant serves as a mean for production of a fibre web of synthetic fibres, such as plastic fibres and absorbent fibres, such as viscose and cellulose fibres. The plant includes a forming head preliminary to lay a homogeneously and smoothly distributed fibre layer on a net shaped wire. Furthermore the plant includes a hydro-entangling section with liquid nozzles with powerful liquid jets to treat the in the forming head formed fibre layer, which consists of both synthetic--and absorbent fibres. The plant also includes an oven subsequently to thermal bond the synthetic fibres with cross bonds in the affected areas. Finally the dried web is winded up in a roller. By the help of the plant according to the invention, by higher production speed than known previously a fibre web can be produced, which is far cheaper, and which has a better and more homogeneous structure than similar conventional fibre webs.Field of SearchFiber entangling and interlockingBy fluid jet needling or perforating Through backing and support members To form perforations Projecting particles in a moving gas stream Utilizing diverse solid particles With reshaping or surface embossing of formed article With subsequent uniting of the particles Subsequent to lamination With formation of filaments With weaving, knitting, braiding, twisting or needling Heating lamina prior to assembly or adhesive applying Web forming Irregular, nonuniform, or patterned receiving surface Hydroentangled nonwoven fabric Autogenously bonded nonwoven fabric Inorganic strand or fiber material only Containing at least two chemically different strand or fiber materials | |
