Patents by Inventor Geoffrey Williams Collins

Geoffrey Williams Collins has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Publication number: 20200255991
    Abstract: A fabric comprising a plurality of textile fibres, wherein said plurality of fibres comprises fibres that have been selected from two groups of fibres. The first group of fibres comprises multiple fibres having a first average length, and the second group of fibres comprises multiple fibres having a second average length, the first average length being shorter than the second average length. Further, the fibres of the first group have a first length variance being greater than a second length variance of the fibres of the second group. Thereby, the elongation properties of the fabric is changed in respect of the cross direction of the fabric, whilst maintaining almost unchanged strength in the longitudinal direction at a low basis weight.
    Type: Application
    Filed: October 5, 2018
    Publication date: August 13, 2020
    Applicant: Jacob Holm & Sons AG
    Inventors: Geoffrey William Collins, Eric Mariani, Nicolas Landspurg
  • Patent number: 10415166
    Abstract: A method to prepare nonwoven webs suitable for use as an industrial wipe which have good MD and CD strength is provided. The method includes hydroentangling an airlaid web of natural cellulose fibers having a fiber length of no more than 3.5 mm, bonding fibers having a fiber length of from 6.0 to 12.0 mm and optionally, manmade fibers having a fiber length of from 6.0 to 12.0 mm. The airlaid web is a homogeneous mat of the natural cellulose fibers, the optional manmade fibers and the bonding fibers and is not laid on a precursor web. No non-fiber adhesive or binder is utilized. The airlayering and hydroentangling are conducted in a continuous operation. The method to manufacture the nonwoven web may include an embossing or crepeing operation.
    Type: Grant
    Filed: May 15, 2017
    Date of Patent: September 17, 2019
    Assignee: Jacob Holm & Sons AG
    Inventors: Richard Knowlson, Eric Mariani, Geoffrey William Collins
  • Publication number: 20180326699
    Abstract: A method to prepare nonwoven webs suitable for use as an industrial wipe which have good MD and CD strength is provided. The method includes hydroentangling an airlaid web of natural cellulose fibers having a fiber length of no more than 3.5 mm, bonding fibers having a fiber length of from 6.0 to 12.0 mm and optionally, manmade fibers having a fiber length of from 6.0 to 12.0 mm. The airlaid web is a homogeneous mat of the natural cellulose fibers, the optional manmade fibers and the bonding fibers and is not laid on a precursor web. No non-fiber adhesive or binder is utilized. The airlayering and hydroentangling are conducted in a continuous operation. The method to manufacture the nonwoven web may include an embossing or crepeing operation.
    Type: Application
    Filed: May 15, 2017
    Publication date: November 15, 2018
    Applicant: Jacob Holm & Sons AG
    Inventors: Richard KNOWLSON, Eric MARIANI, Geoffrey William COLLINS
  • Patent number: 9873964
    Abstract: The present invention relates to a dispersible nonwoven fabric comprising pulp and solvent spun cellulosic fibers, characterized in that the solvent spun cellulosic fibers are fibrillated. Furthermore the invention concerns the use of the fabric in dry wipes and wet wipes.
    Type: Grant
    Filed: November 10, 2016
    Date of Patent: January 23, 2018
    Assignee: Lenzig Aktiengesellschaft
    Inventors: Geoffrey Williams Collins, Andrew Peter Slater, Shayda Rahbaran
  • Publication number: 20170073863
    Abstract: The present invention relates to a dispersible nonwoven fabric comprising pulp and solvent spun cellulosic fibers, characterized in that the solvent spun cellulosic fibers are fibrillated. Furthermore the invention concerns the use of the fabric in dry wipes and wet wipes.
    Type: Application
    Filed: November 10, 2016
    Publication date: March 16, 2017
    Inventors: Geoffrey Williams Collins, Andrew Peter Slater, Shayda Rahbaran
  • Publication number: 20150247288
    Abstract: The present invention relates to a dispersible nonwoven fabric comprising pulp and solvent spun cellulosic fibers, characterized in that the solvent spun cellulosic fibers are fibrillated. Furthermore the invention concerns the use of the fabric in dry wipes and wet wipes.
    Type: Application
    Filed: May 6, 2014
    Publication date: September 3, 2015
    Inventors: Geoffrey Williams Collins, Andrew Peter Slater, Shayda Rahbaran
  • Publication number: 20140318726
    Abstract: The present invention relates to a dispersible nonwoven fabric comprising pulp and solvent spun cellulosic fibers, characterized in that the solvent spun cellulosic fibers are fibrillated. Furthermore the invention concerns the use of the fabric in dry wipes and wet wipes.
    Type: Application
    Filed: October 11, 2012
    Publication date: October 30, 2014
    Inventors: Geoffrey Williams Collins, Andrew Peter Slater, Shayda Rahbaran
  • Patent number: 6949126
    Abstract: Garments are constructed from lyocell fabric which has been resinated using a textile resin having just two groups per molecule which can reactively cross-link with cellulose molecules of the lyocell fabric then causticised by application under tension of an aqueous solution of sodium hydroxide, and the constructed garments are dyed in a garment dyeing operation. Garments can be produced by this route which retain a smooth, evenly-dyed appearance with unpuckered seams and minimal creasing and so present a desired formal look, as distinct from the casual look imparted by the effects of fibrillation normally produced when lyocell garments undergo garment dyeing.
    Type: Grant
    Filed: January 23, 2002
    Date of Patent: September 27, 2005
    Assignee: Lenzing Fibers Limited
    Inventors: James Martin Taylor, Geoffrey William Collins
  • Publication number: 20040117923
    Abstract: Garments are constructed from lyocell fabric which has been resignated using a textile resin having just two groups per molecule which can reactively cross-link with cellulose molecules of the lyocell fabric then causticised by application under tension of an aqueous solution of sodium hydroxide, and the constructed garments are dyed in a garment dyeing operation. Garments can be produced by this route which retain a smooth, evently-dyed appearance with unpuckered seams and minimal creasing and so present a desired formal look, as distinct from the casual look imparted by the effects of fibrillation normally produced when lyocell garments undergo garment dyeing.
    Type: Application
    Filed: July 24, 2003
    Publication date: June 24, 2004
    Inventors: James Martin Taylor, Geoffrey William Collins
  • Publication number: 20010054209
    Abstract: A method for dyeing cellulosic materials with reactive dye by pretreating the fabric with a polycationic polymeric agent which is desirably also polynucleophilic is disclosed. The agent can be a polyquaternary amine material especially a poly(DADMAC) or polyvinylpyridine, particularly one including nucleophilic sites such as primary amino groups, e.g. polyallylamine/DADMAC copolymers and polyvinylpyridines quaternisied with w-aminoalkyl groups. The dyes can react with the nucleophilic centres so dyebath exhaustion can be driven by dye fixation rather than substantivity to the substrate. The need to use of salts to drive substantivity can be obviated and post dyeing washing to remove unreacted/hydrolysed dye is much simplified. Material dyed by the method has the good wash fastness properties of materials dyed using reactive dyes. A wide variety of cellulosic substrates can be dyed including lyocell fibre materials and blend/union materials with polyamides.
    Type: Application
    Filed: August 23, 1999
    Publication date: December 27, 2001
    Inventors: GEOFFREY WILLIAM COLLINS, STEPHEN MARTIN BURKINSHAW, ROY GORDON
  • Patent number: 6200354
    Abstract: A method of dyeing cellulosic fibers or fabrics using pre-metallized acid dye by pretreating the fabric with a cationic agent having a plurality of cationic centers and optionally after treating the dyed material with a cationic polymer is disclosed. The cationic polymer is desirably a polyquaternary amine material especially a poly(DADMAC) or polyvinylpyridine. Material dyed by the method has a “washed out” appearance similar to fabrics dyed using the “Jarofast” process, but the availability of a wide range of pre-metallized dyes gives a wider color range, and the method enables a wider range of substrates to be dyed successfully, including lyocell fiber materials e.g. those sold under Courtauld's trademark “Tencel” and blend/union materials with polyamides, easier processing and superior wash and light fastness.
    Type: Grant
    Filed: August 23, 1999
    Date of Patent: March 13, 2001
    Assignee: Imperial Chemical Industries PLC
    Inventors: Geoffrey William Collins, Stephen Martin Burkinshaw, Roy Gordon