Patents by Inventor Kaveh Tondkar
Kaveh Tondkar 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: 20150330004Abstract: An embossed composite nonwoven web material includes a mixture of thermally unbonded continuous spunlaid filaments and short fibers including natural and/or synthetic fibers or staple fibers. The continuous filaments and short fibers being substantially mechanically bonded to each other by hydroentangling and the composite nonwoven web material being embossed without thermobonds to have a strength index equal to or more than 1 time the strength index of the unembossed composite nonwoven web material.Type: ApplicationFiled: December 27, 2012Publication date: November 19, 2015Applicant: SCA HYGIENE PRODUCTS ABInventors: Anders STRÅLIN, Lars FINGAL, Kaveh TONDKAR
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Publication number: 20150322606Abstract: A method for manufacturing a composite nonwoven web material includes extruding continuous filaments from a spinnerette, drawing the filaments by a slot attenuation unit to thin continuous filaments, forming a web of unbonded continuous filaments without thermobonds as the filaments are laid down, hydroentangling the web including continuous spunlaid filaments together with wet or foam formed short fibers including natural and/or synthetic fibers or staple fibers to integrate and mechanically bond and form a thermally unbonded composite nonwoven web material. A moist environment is created at the formation and lay down of the continuous filaments by the steps of laying down the filaments on an already wetted surface, keeping the width of the outlet of the slot attenuation unit open by more than 65 mm and adding liquid at the outlet of the slot attenuation unit.Type: ApplicationFiled: December 27, 2012Publication date: November 12, 2015Inventors: Anders STRÅLIN, Lars FINGAL, Kaveh TONDKAR
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Publication number: 20140189970Abstract: A flushable moist wipe or hygiene tissue including a hydraulically entangled nonwoven material impregnated with a wetting composition is provided. The nonwoven material contains at least 70%, by fibre weight, pulp fibres and at least 5%, by fibre weight, poly(lactic acid) fibres having a length between 8 and 20 mm and a fineness between 0.5 and 3 dtex. The poly(lactic acid) fibres are non-melted, and the moist wipe or hygiene tissue is free from added binders and wet-strength agents.Type: ApplicationFiled: July 12, 2012Publication date: July 10, 2014Applicant: SCA HYGIENE PRODUCTS ABInventors: Lars Fingal, Kaveh Tondkar, Anders Stralin
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Patent number: 8668159Abstract: A web, such as a tissue or nonwoven web. Perforation lines in the web define sheets. The web is folded before being rolled or stacked, such that the intersection of the perforation lines and the folding line provides reliable dispensing. The web in roll or stack form, a method for forming the web, and a dispenser adapted for dispensing the web are also described.Type: GrantFiled: December 19, 2007Date of Patent: March 11, 2014Assignee: SCA Hygiene Products ABInventors: Kaveh Tondkar, Lars Fingal, Mikael Strandqvist, Susanne Gungner
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Patent number: 8389427Abstract: A hydroentangled nonwoven material (8), includes a mixture of randomized continuous filaments (3) and natural fibers (5), wherein at least part of the staple fibers and/or the continuous filaments includes thermoplastic material. The nonwoven material is bonded in a non-random bonding pattern including a plurality of bonding sites (14) in which thermoplastic material included in the nonwoven material has been caused to at least partly soften or melt to create thermal bonds between the continuous filaments. The nonwoven material includes no other thermal bonds between the filaments than provided by the non-random bonding pattern. The nonwoven material may also contain synthetic staple fibers (6).Type: GrantFiled: November 29, 2006Date of Patent: March 5, 2013Assignee: SCA Hygiene Products ABInventors: Anders Gustafsson, Lars Fingal, Mikael Strandqvist, Kaveh Tondkar
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Publication number: 20100270412Abstract: A web, such as a tissue or nonwoven web. Perforation lines in the web define sheets. The web is folded before being rolled or stacked, such that the intersection of the perforation lines and the folding line provides reliable dispensing. The web in roll or stack form, a method for forming the web, and a dispenser adapted for dispensing the web are also described.Type: ApplicationFiled: December 19, 2007Publication date: October 28, 2010Applicant: SCA HYGIENE PRODUCTS ABInventors: Kaveh Tondkar, Lars Fingal, Mikael Strandqvist, Susanne Gungner
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Publication number: 20100075120Abstract: A hydroentangled nonwoven material (8), includes a mixture of randomized continuous filaments (3) and natural fibres (5), wherein at least part of the staple fibres and/or the continuous filaments includes thermoplastic material. The nonwoven material is bonded in a non-random bonding pattern including a plurality of bonding sites (14) in which thermoplastic material included in the nonwoven material has been caused to at least partly soften or melt to create thermal bonds between the continuous filaments. The nonwoven material includes no other thermal bonds between the filaments than provided by the non-random bonding pattern. The nonwoven material may also contain synthetic staple fibers (6).Type: ApplicationFiled: November 29, 2006Publication date: March 25, 2010Applicant: SCA HYGIENE PRODUCTS ABInventors: Anders Gustafsson, Lars Fingal, Mikael Strandqvist, Kaveh Tondkar
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Patent number: 6596127Abstract: Method of producing a paper having a three-dimensional pattern of alternating raised and recessed portions which has been provided in connection with impulse drying, at which the wet paper web (10) is passed through at least one press nip (12) comprising a rotatable roll (13) which is heated and that the paper web during the passage through the press nip is given a three-dimensional pattern of alternating raised and recessed portions either by means of a pattern wire, band or belt and/or by a pattern on the heated roll (13) and where the paper web (10) after said press nip (12) is led around an essential part of the periphery of the heated roll (13) in order to provide an additional drying of the paper web while this is still in contact with said three-dimensional pattern.Type: GrantFiled: April 2, 2001Date of Patent: July 22, 2003Assignee: SCA Hygiene Products ABInventors: Holger Hollmark, Lennart Reiner, Thomas Billgren, Kaveh Tondkar, Mats Söderberg, Bengt Järrehult
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Patent number: 6503370Abstract: Method of producing paper having a three-dimensional pattern of alternating raised and recessed portions which is given the paper in connection with impulse drying, at which the wet paper web is passed through at least one press nip (12) comprising a rotatable roll (13) which is heated and that the paper web when passing through the press nip is given a three-dimensional pattern either by means of a pattern wire (11) and/or by the fact that the heated roll (13) is provided with a three-dimensional pattern, and where the wet paper web (10) before entering said press nip (12) is given a basis weight variation in a non-random pattern.Type: GrantFiled: April 2, 2001Date of Patent: January 7, 2003Assignee: SCA Hygiene Products ABInventors: Holger Hollmark, Lennart Reiner, Thomas Billgren, Kaveh Tondkar, Mats Söderberg, Bengt Järrehult
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Patent number: 6454905Abstract: Method of producing an impulse dried paper having a three-dimensional pattern of alternating raised and recessed portions, which have been provided in connection with impulse drying, at which the wet paper web (10) is passed through at least two press nips (12a,b), each comprising a rotatable heated roll (13a,b) which is heated and that the paper web during the passage through the press nips is given a three-dimensional pattern of alternating raised and recessed portions either by means of a patterned wire (11′), -band or belt and/or by a pattern on the heated roll (13a,b).Type: GrantFiled: April 2, 2001Date of Patent: September 24, 2002Assignee: SCA Hygiene Products ABInventors: Holger Hollmark, Lennart Reiner, Thomas Billgren, Kaveh Tondkar, Bengt Järrehult, Mats Söderberg
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Publication number: 20020124978Abstract: Method of producing paper having a three-dimensional pattern of alternating raised and recessed portions which is given the paper in connection with impulse drying, at which the wet paper web is passed through at least one press nip (12) comprising a rotatable roll (13) which is heated and that the paper web when passing through the press nip is given a three-dimensional pattern either by means of a pattern wire (11) and/or by the fact that the heated roll (13) is provided with a three-dimensional pattern, and where the wet paper web (10) before entering said press nip (12) is given a basis weight variation in a non-random pattern.Type: ApplicationFiled: April 2, 2001Publication date: September 12, 2002Inventors: Holger Hollmark, Lennart Reiner, Thomas Billgren, Kaveh Tondkar, Mats Soderberg, Bengt Jarrehult
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Patent number: 6444089Abstract: Method of producing a paper having a three-dimensional pattern of alternating raised and recessed portions which is given the paper in connection with impulse drying. The paper web has a varying material composition as seen in its thickness direction, so that it at least in an outer layer contains an amount of a material that softens, melts or hardens in the temperature interval 100-400° C. or in some other way contributes in stabilizing the pattern structure that has been given the paper. It is further referred to an impulse dried paper produced according to the method.Type: GrantFiled: April 2, 2001Date of Patent: September 3, 2002Assignee: SCA Hygiene Products ABInventors: Holger Hollmark, Lennart Reiner, Thomas Billgren, Kaveh Tondkar, Mats Söderberg, Bengt Järrehult
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Publication number: 20020060007Abstract: Method of producing a paper having a three-dimensional pattern of alternating raised and recessed portions which is given the paper in connection with impulse drying. The paper web has a varying material composition as seen in its thickness direction, so that it at least in an outer layer contains an amount of a material that softens, melts or hardens in the temperature interval 100-400° C. or in some other way contributes in stabilizing the pattern structure that has been given the paper. It is further referred to an impulse-dried paper produced according to the method.Type: ApplicationFiled: April 2, 2001Publication date: May 23, 2002Inventors: Holger Hollmark, Lennart Reiner, Thomas Billgren, Kaveh Tondkar, Mats Soderberg, Bengt Jarrehult
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Publication number: 20020060008Abstract: Method of producing a paper having a three-dimensional pattern of alternating raised and recessed portions which has been provided in connection with impulse drying, at which the wet paper web (10) is passed through at least one press nip (12) comprising a rotatable roll (13) which is heated and that the paper web during the passage through the press nip is given a three-dimensional pattern of alternating raised and recessed portions either by means of a pattern wire, band or belt and/or by a pattern on the heated roll (13) and where the paper web (10) after said press nip (12) is led around an essential part of the periphery of the heated roll (13) in order to provide an additional drying of the paper web while this is still in contact with said three-dimensional pattern.Type: ApplicationFiled: April 2, 2001Publication date: May 23, 2002Inventors: Holger Hollmark, Lennart Reiner, Thomas Billgren, Kaveh Tondkar, Mats Soderberg, Bengt Jarrehult