Patent · US Active

Process for manufacturing an improved web material by the in-situ measurement and adjustment of ion concentration

US10844546B2 · kind B2 · utility

0Cited by

3References

34Claims

0Family size

Assignee

Eldorado Brasil Celulose S.A. · BR

Inventors

Fernando Silva · Santa Ana, US
Dale Gary Kavalew · Evendale, US

Key dates

Filing date	Dec 1, 2018
Grant date	Nov 24, 2020
Priority date	—
Expiry date	Feb 22, 2039

Classification

Technology area (CPC B)Performing Operations; Transporting
CPC primaryB31F1/14
WIPO fieldMeasurement
WIPO sectorInstruments

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.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.