A Single Nonwoven Layer Comprising Non-linear Synthetic Polymeric Strand Or Fiber Material And Strand Or Fiber Material Not Specified As Non-linear Patents (Class 442/356)
  • Patent number: 8114794
    Abstract: The invention relates to a nonwoven fabric which is bonded at selected points by use of a binder containing particles composed of filler material (a phase change material, among others) and which is not bonded at other selected points. The nonwoven fabric is characterized by a soft touch and good flexibility, and may be used as an interlining material or an intermediate layer.
    Type: Grant
    Filed: April 28, 2006
    Date of Patent: February 14, 2012
    Assignee: Carl Freudenberg KG
    Inventors: Peter Grynaeus, Hans Rettig, Oliver Staudenmayer
  • Publication number: 20100130084
    Abstract: According to the present invention, it is possible to obtain a non-woven fabric that is excellent in bulkiness, flexibility, and feeling, in which less fibers drop out even in the case wherein the non-woven fabric is used for an application such as clothing items and a wiping cloth in which a surface of a non-woven fabric is rubbed, that is, excellent in a lint-free property. A mixed continuous fiber non-woven fabric in accordance with the present invention is characterized by comprising a split continuous fiber and a crimped continuous fiber, and is preferably characterized in that a total amount of the crimped continuous fiber is in the range of 10 to 90% by weight (where a total weight of a split continuous fiber and a crimped continuous fiber is 100% by weight).
    Type: Application
    Filed: March 25, 2008
    Publication date: May 27, 2010
    Applicant: Mitsui Chemicals, Inc.
    Inventors: Akio Matsubara, Shigeyuki Motomura
  • Publication number: 20100087117
    Abstract: A scouring material comprises a three-dimensional non-woven web (3) of entangled fibres (5) bonded to one another at mutual contact points (7). The fibres comprise natural vegetable fibres in an amount of at least 50% by weight, and crimped synthetic fibres in an amount of at least 5% by weight. The fibres, throughout the web, have a substantially continuous coating of binder resin; and the web of bonded fibres has a maximum density of 60 kg/m3. A method of making the scouring material comprises the steps of: forming a three-dimensional non-woven web of entangled fibres; roll-coating the web with a binder resin; and curing the binder resin to form the scouring material.
    Type: Application
    Filed: October 5, 2009
    Publication date: April 8, 2010
    Inventors: Jeremie PEYRAS-CARRATTE, Jean-Marie Coant, Carmen Martin Rivera, Cristobal Martin-Bernia, Maria de los Angeles Alcazar
  • Patent number: 7476632
    Abstract: New nonwoven fibrous webs are taught which comprise a collected mass of a) directly formed fibers disposed within the web in a C-shaped cross-sectional configuration and b) staple fibers having a crimp of at least 15% dispersed among the directly formed fibers in an amount of at least 5% the weight of the directly formed fibers. The web is lofty but free of macrovoids. Preferably, the web has a filling ratio of at least 50 and a light transmittance variation of about 2% or less. Typically, fibers within the web are bonded together at points of fiber intersection, preferably with autogenous bonds, to provide a compression-resistant matrix. The webs are especially useful as acoustic and thermal insulation.
    Type: Grant
    Filed: November 15, 2002
    Date of Patent: January 13, 2009
    Assignee: 3M Innovative Properties Company
    Inventors: David A. Olson, Jonathan H. Alexander, Michael R. Berrigan
  • Patent number: 7381669
    Abstract: A filter media formed in accordance with the present invention comprises hydroentangled, predominantly polyester staple length fibers having a basis weight of no more than about 12 oz/yd2. The filter media exhibits a Mullen burst strength of at least about 395 psi, and machine-direction and cross-direction shrinkage of less than about 3%, preferably less than about 2% . The filter media exhibits a machine-direction tensile strength of at least about 105 lb/in, and a cross-direction tensile strength of at least about 110 lb/in.
    Type: Grant
    Filed: January 9, 2006
    Date of Patent: June 3, 2008
    Assignee: Polymer Group, Inc.
    Inventors: Charles Eric Pearce, Sergio DeLeon, Michael Putnam, Cheryl Carlson, Ping Hao
  • Patent number: 7358203
    Abstract: This invention relates to a stain-masking cut resistant fabrics and articles including gloves and methods for making articles, the fabrics and articles comprising a yarn comprising an intimate blend of staple fibers, the blend comprising 20 to 50 parts by weight of a lubricating fiber, 20 to 40 parts by weight of a first aramid fiber having a linear density of from 3.3 to 6 denier per filament (3.7 to 6.7 dtex per filament), 20 to 40 parts by weight of a second aramid fiber having a linear density of from 0.50 to 4.5 denier per filament (0.56 to 5.0 dtex per filament), and 2 to 15 parts by weight of a third aramid fiber having a linear density of from 0.5 to 2.25 denier per filament (0.56 to 2.5 dtex per filament), based on the total weight of the lubricating and first, second and third aramid fibers. The difference in filament linear density of the first aramid fiber to the second aramid fiber is 1 denier per filament (1.
    Type: Grant
    Filed: October 10, 2006
    Date of Patent: April 15, 2008
    Assignee: E.I. du Pont de Nemours and Company
    Inventor: Larry John Prickett
  • Patent number: 7015158
    Abstract: A filter media formed in accordance with the present invention comprises hydroentangled, predominantly polyester staple length fibers having a basis weight of no more than about 12 oz/yd2. The filter media exhibits a Mullen burst strength of at least about 395 psi, and machine-direction and cross-direction shrinkage of less than about 3%, preferably less than about 2%. The filter media exhibits a machine-direction tensile strength of at least about 105 lb/in, and a cross-direction tensile strength of at least about 110 lb/in.
    Type: Grant
    Filed: January 16, 2002
    Date of Patent: March 21, 2006
    Assignee: Polymer Group, Inc.
    Inventors: Charles Eric Pearce, Sergio de Leon, Michael Putnam, Cheryl Carlson, Ping Hao
  • Publication number: 20040198124
    Abstract: High loft, low density nonwoven webs of increased uniformity are produced by forming substantially continuous, spunbond, crimped, bicomponent fibers of A/B side by side morphology in an unheated fiber draw unit. The fibers are then heated and cooled in the absence of impeding forces to achieve maximum crimp in the z-direction and produce a web of lofted material. The resultant material is particularly suitable for use as an insulator. Particulates may be added to the webs if desired.
    Type: Application
    Filed: December 31, 2003
    Publication date: October 7, 2004
    Inventors: Braulio A. Polanco, Christopher Dale Fenwick, Darryl Franklin Clark, Bryan David Haynes, Kurtis Lee Brown, Chad Michael Freese, Eric Scott Kepner
  • Patent number: 6689703
    Abstract: An elastically stretchable nonwoven fabric including thermoplastic elastomer filaments; the filaments being heat-sealed and/or mechanically intertwined together to form the nonwoven fabric that has crimped regions and non-crimped regions wherein each of the crimped regions has fine crimps in the rate of 50/cm or higher.
    Type: Grant
    Filed: June 27, 2000
    Date of Patent: February 10, 2004
    Assignee: Uni-Charm Corporation
    Inventors: Toshio Kobayashi, Satoru Tange, Masaki Yoshida, Emiko Inoue
  • Patent number: 6686303
    Abstract: An improved nonwoven web composite is formed by combining splittable bicomponent thermoplastic filaments with a component selected from other fibers and particles. The bicomponent filaments include distinct regions of first and second incompatible polymers extending the length of the filaments. After the bicomponent filaments are combined with the other fibers and/or particles, the bicomponent filaments are caused to split lengthwise along boundaries between the regions of different polymers, resulting in a web or matrix of finer filaments which entrap, ensnare and contain the other fibers and/or particles within the web or matrix. The nonwoven web composite is particularly useful for making absorbent articles, which require durability and optimum levels of absorbent fibers and/or particles.
    Type: Grant
    Filed: November 13, 1998
    Date of Patent: February 3, 2004
    Assignee: Kimberly-Clark Worldwide, Inc.
    Inventors: Bryan David Haynes, Billy Dean Arnold, Justin Max Duellman, Ryan Clinton Frank, Jeffrey Lawrence McManus, Charles Allen Smith, Ty Jackson Stokes, Kevin Edward Smith, Darryl Franklin Clark, Debra Jean McDowall, Samuel Edward Marmon, Christopher Cosgrove Creagan, Xin Ning, David Lewis Myers
  • Publication number: 20030166370
    Abstract: Thermally divisible multicomponent fibers having at least a first component including an elastomeric polymer and at least a second component including a non-elastomeric polymer. The multicomponent fibers are useful in the manufacture of nonwoven structures, and in particular nonwoven structures used as synthetic suede and filtration media.
    Type: Application
    Filed: September 22, 1999
    Publication date: September 4, 2003
    Inventors: FRANK O. HARRIS, JEFFREY S. DUGAN, JING-PEIR YU, ARTHUR TALLEY, ARNOLD WILKIE
  • Publication number: 20030134557
    Abstract: A flooring material having a textile pad substructure with about 60% slightly crimped 6D nylon is provided. The textile pad has reinforcement and binding fibers. The binding fibers are thermoplastic and are used to bind the reinforcement fibers together. The pad is created by heating and compressing a fibrous textile batt so that it has a density of about 7.1 lbs per cubic ft.
    Type: Application
    Filed: February 28, 2003
    Publication date: July 17, 2003
    Inventors: Alan B. Collison, Chad A. Collison
  • Publication number: 20030124938
    Abstract: A method for preparing stretchable bonded nonwoven fabrics which involves forming a substantially nonbonded nonwoven web of multiple-component continuous filaments or staple fibers which are capable of developing three-dimensional spiral crimp, activating the spiral crimp by heating substantially nonbonded web under free shrinkage conditions during which the nonwoven remains substantially nonbonded, followed by bonding the crimped nonwoven web using an array of discrete mechanical, chemical, or thermal bonds. Nonwoven fabrics prepared according to the method of the current invention have an improved combination of stretch-recovery properties, textile hand and drape compared to multiple-component nonwoven fabrics known in the art.
    Type: Application
    Filed: December 13, 2002
    Publication date: July 3, 2003
    Inventors: Dimitri P. Zafiroglu, Geoffrey David Hietpas, Debora Flanagan Massouda, Thomas Michael Ford
  • Publication number: 20030124939
    Abstract: This invention relates to a method for preparing nonwoven fabrics having an improved balance of properties in the machine and cross-directions. More specifically, the invention utilizes nonwoven webs that include relatively low levels of multiple-component fibers having latent three-dimensional spiral crimp combined with fibers that do not develop spiral crimp. The latent spiral crimp of the multiple-component fibers is activated, such as by heating, under free shrinkage conditions, after formation of the nonwoven web to achieve re-orientation of the non-spirally-crimpable fibers and an improved balance of properties such as tensile strength and modulus.
    Type: Application
    Filed: December 16, 2002
    Publication date: July 3, 2003
    Inventors: Dimitri P. Zafiroglu, Geoffrey David Hietpas
  • Publication number: 20030100239
    Abstract: The present invention relates to carbon-matrix composites, such as carbon-carbon composites, and a method for forming them by forming a fabric of fusible and infusible fibers which can be processed and carbonized to form a composite. The methods disclosed herein permit preparation of composites which are particularly thin, uniform, and highly pure. The invention also relates to preprocessed fabrics and precarbonized composites, such as those comprising carbon or oxidized polyacrylonitrile fibers and fusible polyacrylonitrile fibers.
    Type: Application
    Filed: July 26, 2001
    Publication date: May 29, 2003
    Applicant: Textron Systems Corporation
    Inventors: John J. Gaffney, Raymond C. Loszewski
  • Patent number: 6559080
    Abstract: Dual glass fibers can be processed into coherent webs and felts by first blending the dual glass fibers with an equal or greater amount of uncrimped fibers. Optionally, other crimped fibers can be added without significant impact on processibility.
    Type: Grant
    Filed: August 13, 2002
    Date of Patent: May 6, 2003
    Assignee: Toray Industries, Inc.
    Inventor: Reginald Thomas Kruszewski
  • Publication number: 20020016120
    Abstract: A non-woven fabric comprising staple fibers, having a fiber length of 3 to 25 mm and a single fiber fineness of 1 to 100 denier, and is produced by the fibers being dropped while being dispersed to be accumulated and adhered at the intersection point of the staple fibers. The non-woven fabric has a specific volume of 40 to 200 cm3/g, and the number of fiber lumps having a volume of not less than 1 mm3 is not more than 5 lumps per 20 g of the non-woven fabric. The bulky non-woven fabric of the present invention in which the sufficient contribution to bulkiness by fibers is exhibited is suitable for sanitary materials, such as disposable diapers, sanitary napkins, incontinence pads, nursing pads or the like, or wipes etc.
    Type: Application
    Filed: December 10, 1997
    Publication date: February 7, 2002
    Applicant: CHISSO CORPORATION
    Inventors: KOKI NAGANO, SHIGERU HIRABAYASHI
  • Patent number: 6258203
    Abstract: A printed circuit board is made from at least one non-woven sheet or web layer comprising at least 50% by weight acrylic fibers, with any balance substantially electrically non-conductive fibers, filler, and binder. The sheet or web is preferably made by the foam process, and may contain 60-80% straight polyacrylonitrile fibers and 40-20% fibrillated (pulp) ones. The web or sheet is preferably compressed by thermal calendering so that it has a density of about 0.1-1 grams per cubic centimeter; and the web or sheet may have a basis weight of between about 20-120 grams per square meter. The web or sheet may also have a 1-40% of substantially electrically non-conductive organic or inorganic binder, or may be substantially binder free.
    Type: Grant
    Filed: September 21, 1999
    Date of Patent: July 10, 2001
    Assignee: Ahlstrom Glassfibre Oy
    Inventors: Kay Rokman, Rod Komlenic, Kelly Rennels, Hakan Sabel
  • Patent number: 5906952
    Abstract: A water-absorbent wrap for power cables, communication cables, and like cables includes a calendered, single layer nonwoven formed of a carded mixture of super water-absorbent fibers and cohesive carrier fibers. The calendered nonwoven is characterized by a thickness of not more than 2.0 mm, a basis weight of not more than 200 gsm, a swelling height of at least 3 mm, a swelling speed of at least 1 mm/1st min., and a tensile strength of at least 20 N/5 cm.
    Type: Grant
    Filed: March 7, 1997
    Date of Patent: May 25, 1999
    Assignee: Nordlys S.A.
    Inventors: Jacques Everaere, Michael Delattre, Christopher Wren