公开(公告)号：US20250155370A1

公开(公告)日：2025-05-15

申请号：US18287506

申请日：2022-04-20

Applicant: Flooring Technologies Ltd.

Inventor： Jinming Zhang ,  Norbert Kalwa

IPC: G01N21/359 ,  G01N21/3563

Abstract: The present invention relates to a method for determining the quantitative ratio of melamine-formaldehyde resin and urea-formaldehyde resin in at least one paper layer impregnated with a mixture of these resins, wherein the impregnation is carried out in a plant for impregnating at least one paper layer passing through the plant, comprising the steps Impregnating of several paper layers with resin mixtures, each with different quantitatively defined ratios of melamine-formaldehyde resin and urea-formaldehyde resin as reference samples; Recording of at least one NIR spectrum of each of the reference samples using at least one NIR measuring head in a wavelength range between 500 nm and 2500 nm, preferably between 700 nm and 2000 nm, particularly preferably between 900 nm and 1700 nm, and especially advantageously between 1450 nm and 1550 nm; Correlating the different quantitative ratios of melamine-formaldehyde resin and urea-formaldehyde resin in the reference samples to the recorded NIR spectra of said reference samples; and Establishing a calibration model for the correlation between the spectral data of the NIR spectra and the associated quantitative ratios of melamine-formaldehyde resin and urea-formaldehyde resin of the reference samples by means of multivariate data analysis; Impregnating at least one paper layer with a resin mixture of melamine-formaldehyde resin and urea-formaldehyde resin; Recording at least one NIR spectrum of the impregnated paper layer using the at least one NIR measuring head in a wavelength range between 500 nm and 2500 nm, preferably between 700 nm and 2000 nm, in particular preferably between 900 nm and 1700 nm and especially advantageously between 1450 nm and 1550 nm; and Determining the quantitative ratio of melamine-formaldehyde resin and urea-formaldehyde resin in the impregnated paper layer by comparing the NIR spectrum recorded for the impregnated paper layer with the calibration model created.

公开(公告)号：US20240125696A1

公开(公告)日：2024-04-18

申请号：US18278089

申请日：2022-02-15

Applicant: Flooring Technologies Ltd.

Inventor： Joachim Hasch ,  Norbert Kalwa ,  Jinming Zhang

IPC: G01N21/359 ,  G01N21/3563 ,  G01N33/44

CPC classification number: G01N21/359 ,  G01N21/3563 ,  G01N33/442 ,  G01N2201/127

Abstract: Provided is a method for determining the resin penetration into at least one porous coating material which is pressed with at least one carrier board and at least one resin layer arranged on the carrier board. During the pressing process the resin penetrates or rises into the at least one porous coating material.

公开(公告)号：US20250033375A1

公开(公告)日：2025-01-30

申请号：US18707982

申请日：2022-11-03

Applicant: Flooring Technologies Ltd.

Inventor： Norbert Kalwa ,  Jinming Zhang

IPC: B41J2/21 ,  B41M3/06

Abstract: Provided is a method for determining the colour deviation of at least one print decoration applied to at least one carrier material from a print template using only NIR spectroscopy including the steps of recording of at least one NIR spectrum of several reference samples with the print template using at least one NIR measuring head in a wavelength range between 700 nm and 2500 nm, applying the at least one printed decoration to the at least one carrier material by means of printing, recording at least one NIR spectrum of the carrier material printed with the print decoration using the at least one NIR measuring head in a wavelength range between 700 nm and 2500 nm, and determining the colour deviation of the print decor by comparing with the at least one NIR spectrum recorded for the print template.