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).
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Publication number: 20200255991Abstract: 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: ApplicationFiled: October 5, 2018Publication date: August 13, 2020Applicant: Jacob Holm & Sons AGInventors: Geoffrey William Collins, Eric Mariani, Nicolas Landspurg
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Patent number: 10415166Abstract: 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: GrantFiled: May 15, 2017Date of Patent: September 17, 2019Assignee: Jacob Holm & Sons AGInventors: Richard Knowlson, Eric Mariani, Geoffrey William Collins
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Publication number: 20180326699Abstract: 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: ApplicationFiled: May 15, 2017Publication date: November 15, 2018Applicant: Jacob Holm & Sons AGInventors: Richard KNOWLSON, Eric MARIANI, Geoffrey William COLLINS
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Patent number: 9873964Abstract: 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: GrantFiled: November 10, 2016Date of Patent: January 23, 2018Assignee: Lenzig AktiengesellschaftInventors: Geoffrey Williams Collins, Andrew Peter Slater, Shayda Rahbaran
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Publication number: 20170073863Abstract: 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: ApplicationFiled: November 10, 2016Publication date: March 16, 2017Inventors: Geoffrey Williams Collins, Andrew Peter Slater, Shayda Rahbaran
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Publication number: 20150247288Abstract: 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: ApplicationFiled: May 6, 2014Publication date: September 3, 2015Inventors: Geoffrey Williams Collins, Andrew Peter Slater, Shayda Rahbaran
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Publication number: 20140318726Abstract: 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: ApplicationFiled: October 11, 2012Publication date: October 30, 2014Inventors: Geoffrey Williams Collins, Andrew Peter Slater, Shayda Rahbaran
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Patent number: 6949126Abstract: 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: GrantFiled: January 23, 2002Date of Patent: September 27, 2005Assignee: Lenzing Fibers LimitedInventors: James Martin Taylor, Geoffrey William Collins
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Publication number: 20040117923Abstract: 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: ApplicationFiled: July 24, 2003Publication date: June 24, 2004Inventors: James Martin Taylor, Geoffrey William Collins
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Publication number: 20010054209Abstract: 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: ApplicationFiled: August 23, 1999Publication date: December 27, 2001Inventors: GEOFFREY WILLIAM COLLINS, STEPHEN MARTIN BURKINSHAW, ROY GORDON
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Patent number: 6200354Abstract: 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: GrantFiled: August 23, 1999Date of Patent: March 13, 2001Assignee: Imperial Chemical Industries PLCInventors: Geoffrey William Collins, Stephen Martin Burkinshaw, Roy Gordon