Patents Assigned to Eldorado Brasil Celulose S.A.
  • Patent number: 10844546
    Abstract: A process having the steps of producing the web material with the papermaking machine; measuring a molar amount of a monovalent inorganic ionizable cation species (MIICS) in the web material; measuring a molar amount of a divalent inorganic ionizable cation species (DIICS) in the web material; calculating a molar ratio of the measured molar amount of the MIICS to the measured molar amount of the DIICS in the web material; determining if the molar ratio of MIICS to DIICS is about less than or equal to 10; and, if the molar ratio of MIICS to DIICS is greater than about 10, adding an amount of DIICS to the papermaking machine to adjust the molar ratio of MIICS to DIICS so the web material adhering to the Yankee drum drying system has a molar ratio of MIICS to DIICS of about less than or equal to 10, is disclosed.
    Type: Grant
    Filed: December 1, 2018
    Date of Patent: November 24, 2020
    Assignee: Eldorado Brasil Celulose S.A.
    Inventors: Fernando Henrique-Pescatori Silva, Dale Kavalew
  • Patent number: 10844547
    Abstract: A process for manufacturing a web material is disclosed. The process generally comprises the steps of providing a papermaking machine with a monovalent inorganic ionizable cation species (MIICS) and a divalent inorganic ionizable cation species (DIICS) measuring devices, measuring molar concentrations of MIICS and DIICS in the web material with the MIICS and DIICS measuring devices and calculating a molar ratio of the measured molar concentration of the MIICS to the measured molar concentration of the DIICS, and subsequently determining if the calculated molar ratio is about less than or equal to 10. If the molar ratio is greater than 10, adding an amount of DIICS to the papermaking machine and manufacturing the web material with the papermaking machine with the added amount of DIICS.
    Type: Grant
    Filed: December 1, 2018
    Date of Patent: November 24, 2020
    Assignee: Eldorado Brasil Celulose S.A.
    Inventors: Fernando Henrique-Pescatori Silva, Dale Kavalew