Patents by Inventor Avinav G. NANDGAONKAR

Avinav G. NANDGAONKAR 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).

  • Patent number: 11993878
    Abstract: Nonwoven fabric manufacturing line, which comprises a forming device for forming a fibre web on a moving web-forming base and a spunlacing device for reinforcing the web. Further, the line comprises at least one first drying device for drying the web and a calender for forming patterning in the web. The manufacturing line comprises at least one second drying device for drying the calendered web, which second drying device is located after the calender in the direction of travel of the web.
    Type: Grant
    Filed: September 30, 2020
    Date of Patent: May 28, 2024
    Assignee: Suominen Corporation
    Inventors: Gian Luca Polosa, Avinav G. Nandgaonkar, Pramod U. Shanbhag
  • Patent number: 11944095
    Abstract: The current invention relates to modifying the surface of a cellulose-containing nonwoven substrate carrying a quaternary ammonium compound. A material for a nonwoven disinfecting wipe is provided which material includes a nonwoven substrate comprising cellulose and synthetic fibers and a combination of poly(vinylamine) and poly(amideamine-epichlorohydrin). Further, a method is provided for preparing a material for a nonwoven disinfecting wipe, the method comprising treating a nonwoven substrate comprising cellulose with poly(vinylamine) and poly(amideamine-epichlorohydrin).
    Type: Grant
    Filed: April 5, 2018
    Date of Patent: April 2, 2024
    Assignee: Suominen Corporation
    Inventors: Rui Ferreira, Muralidhar Lalagiri, Avinav G. Nandgaonkar
  • Patent number: 11661688
    Abstract: The invention relates to a nonwoven fabric material having sufficient strength to be used in a pre-moistened state but also having dispersibility properties which allow the product to be flushed. The material comprises at least two nonwoven webs, at least one of which is hydroentangled. Each of the individual webs comprise 50%-95% wood pulp and 5%-50% of short cut man-made fibers and/or natural fibers and has a basis weight of 20-100 gsm. After forming the webs, the two nonwoven webs are dried and then joined together by particle binders through size press or spraying. The particle binder joined webs separate into individual webs after flushing due to the breakage of particle binder-nonwoven hydrogen bond which makes the material highly dispersible.
    Type: Grant
    Filed: February 8, 2018
    Date of Patent: May 30, 2023
    Assignee: Suominen Oyj
    Inventor: Avinav G. Nandgaonkar
  • Publication number: 20230122829
    Abstract: According to an aspect of the present invention, there is provided a method for producing a nonwoven fabric, the method comprising the steps of providing fibres comprising 10-100 wt-% of bast fibres, the bast fibres having at least one angle of at least 20°, and the bast fibres having an average fibre length of 10-60 mm; carding the fibres and forming a web of fibres on a wire support; hydroentangling the formed web by using at least a first and a second hydroentangling unit, wherein a hydroentanglement energy in the first hydroentangling unit is lower than the hydroentanglement energy in the second hydroentangling unit; dewatering the hydroentangled web; and drying the dewatered web at a temperature of 105-125° C.
    Type: Application
    Filed: October 18, 2022
    Publication date: April 20, 2023
    Inventors: Miika Nikinmaa, Avinav G. Nandgaonkar
  • Patent number: 11598033
    Abstract: The present invention relates to a method for producing a nonwoven fabric. The method according to the invention comprises forming a nonwoven web using a wet lay forming process, hydroentangling the web and providing the web with a high quality hydroembossed pattern. The invention also concerns a nonwoven fabric exhibiting a three dimensional pattern, which remains even in wet wipes prepared from the material.
    Type: Grant
    Filed: March 25, 2020
    Date of Patent: March 7, 2023
    Assignee: Suominen Oyj
    Inventors: Gian Luca Polosa, Muralidhar Lalagiri, Laura LaPlante, Miika Nikinmaa, Avinav G. Nandgaonkar
  • Publication number: 20210106003
    Abstract: The current invention relates to modifying the surface of a cellulose-containing nonwoven substrate carrying a quaternary ammonium compound. A material for a nonwoven disinfecting wipe is provided which material includes a nonwoven substrate comprising cellulose and synthetic fibers and a combination of poly(vinylamine) and poly(amideamine-epichlorohydrin). Further, a method is provided for preparing a material for a nonwoven disinfecting wipe, the method comprising treating a nonwoven substrate comprising cellulose with poly(vinylamine) and poly(amideamine-epichlorohydrin).
    Type: Application
    Filed: April 5, 2018
    Publication date: April 15, 2021
    Inventors: Rui Ferreira, Muralidhar Lalagiri, Avinav G. Nandgaonkar
  • Publication number: 20210095406
    Abstract: Nonwoven fabric manufacturing line, which comprises a forming device for forming a fibre web on a moving web-forming base and a spunlacing device for reinforcing the web. Further, the line comprises at least one first drying device for drying the web and a calender for forming patterning in the web. The manufacturing line comprises at least one second drying device for drying the calendered web, which second drying device is located after the calender in the direction of travel of the web.
    Type: Application
    Filed: September 30, 2020
    Publication date: April 1, 2021
    Inventors: Gian Luca Polosa, Avinav G. Nandgaonkar, Pramod U. Shanbhag
  • Publication number: 20200308742
    Abstract: The present invention relates to a method for producing a nonwoven fabric. The method according to the invention comprises forming a nonwoven web using a wet lay forming process, hydroentangling the web and providing the web with a high quality hydroembossed pattern. The invention also concerns a nonwoven fabric exhibiting a three dimensional pattern, which remains even in wet wipes prepared from the material.
    Type: Application
    Filed: March 25, 2020
    Publication date: October 1, 2020
    Inventors: Gian Luca Polosa, Muralidhar Lalagiri, Laura LaPlante, Miika Nikinmaa, Avinav G. Nandgaonkar
  • Publication number: 20200308743
    Abstract: The present invention relates to a nonwoven fabric and the production thereof. More specifically, the invention relates to a dispersible and biodegradable nonwoven fabric comprising a web prepared using a wet lay forming process. The process involves forming a web from the aqueous suspension on a wire support, hydroentangling and drying the web. The web can be provided with a high quality hydroembossed pattern, which remains even in wet wipes prepared from the material.
    Type: Application
    Filed: March 25, 2020
    Publication date: October 1, 2020
    Inventors: Gian Luca Polosa, Laura LaPlante, Avinav G. Nandgaonkar
  • Publication number: 20200095714
    Abstract: The invention relates to a nonwoven fabric material having sufficient strength to be used in a pre-moistened state but also having dispersibility properties which allow the product to be flushed. The material comprises at least two nonwoven webs, at least one of which is hydroentangled. Each of the individual webs comprise 50%-95% wood pulp and 5%-50% of short cut man-made fibers and/or natural fibers and has a basis weight of 20-100 gsm. After forming the webs, the two nonwoven webs are dried and then joined together by particle binders through size press or spraying. The particle binder joined webs separate into individual webs after flushing due to the breakage of particle binder-nonwoven hydrogen bond which makes the material highly dispersible.
    Type: Application
    Filed: February 8, 2018
    Publication date: March 26, 2020
    Inventor: Avinav G. Nandgaonkar
  • Publication number: 20180223461
    Abstract: The invention relates to a nonwoven material having sufficient strength to be used in a pre-moistened state but also having dispersibility properties which allow the product to be flushed. The material comprises at least two nonwoven webs, at least one of which is hydroentangled. Each of the individual webs has a basis weight of 20-100 gsm. The nonwoven webs are joined together by thermal or mechanical embossing, or a combination of these.
    Type: Application
    Filed: February 8, 2018
    Publication date: August 9, 2018
    Inventors: Avinav G. NANDGAONKAR, Pramod U. SHANBHAG