Radiant energy – Invisible radiant energy responsive electric signalling – Infrared responsive
Patent
1991-12-20
1993-10-05
Hannaher, Constantine
Radiant energy
Invisible radiant energy responsive electric signalling
Infrared responsive
250340, 250341, 2503591, G01N 2125, G01N 2131, G01N 2135
Patent
active
052508110
ABSTRACT:
A method for obtaining quantitative compositional information from a multilayer web containing a highly light-scattering component. The compositional information is obtained by measuring and analyzing the transmitted or diffusely reflected infrared spectrum. The method allows for separately determining the moisture content of hydrophobic (non-hydrogen bonding) layers and hydrophilic (hydrogen bonding) layers of multilayer webs. The separate measurements of moisture content can be made simultaneously in moving webs having both types of layers present. The method is used to determine further compositional information such as the thickness of the individual support and gelatin containing layers, plasticizer content, retained solvents content, and the presence of other components in webs, especially photographic webs.
REFERENCES:
patent: 3008369 (1961-11-01), Zuk
patent: 3405268 (1968-10-01), Brunton
patent: 3551678 (1970-12-01), Mitchell
patent: 3641349 (1972-02-01), Dahlin
patent: 3661462 (1972-05-01), Natens
patent: 3675019 (1972-07-01), Hill et al.
patent: 3793524 (1974-02-01), Howarth
patent: 4006358 (1977-02-01), Howarth
patent: 4097743 (1978-06-01), Carlson
patent: 4243882 (1981-01-01), Yasujima et al.
patent: 4289964 (1981-09-01), Baker
patent: 4345150 (1982-08-01), Tamura et al.
patent: 4429225 (1984-01-01), Fumoto et al.
patent: 4510389 (1985-04-01), Fumoto
patent: 4574194 (1986-03-01), Coats et al.
patent: 4577104 (1986-03-01), Sturm
patent: 4602160 (1986-07-01), Mactaggart
patent: 4718026 (1988-01-01), Long et al.
patent: 4786817 (1988-11-01), Boissevain et al.
patent: 4840706 (1989-06-01), Campbell
patent: 4879471 (1989-11-01), Dahlquist
patent: 4885709 (1989-12-01), Edgar et al.
patent: 4943721 (1990-07-01), Vidrine, Jr.
patent: 4957770 (1990-09-01), Howarth
patent: 5019710 (1991-05-01), Wennerberg et al.
patent: 5073712 (1991-12-01), Hellstrom
Huizinga et al. "Application of Infrared Spectroscopy to On-Line Monitoring of Thin Coatings", Abstracts of the 1986 Conference of the Federation of Analytical Chemistry and Spectroscopy Societies, 1986.
Huizinga, "Comparison of Near-IR and Mid-IR Spectroscopic Techniques Used for On-Line Quality Control of Moving Webs", Abstracts of the 1991 Pittsburg Conference of Analytical Chemistry and Applied Spectroscopy, 1991.
Fukada et al., "FTIR Study on the Nature of Water Sorbed in Poly(ethylene terephthalate) Film", Chemtracts-Macromolecular Chemistry 2:188-190 (1991).
Willey, "Fourier Transform Infrared Spectrophotometer for Transmittance and Diffuse Reflectance Measurements", Applied Spectroscopy, vol. 30, No. 6, 1976, pp. 593-601.
Jacobsmeyer Russell
Lippert Joseph E.
Eastman Kodak Company
Glick Edward J.
Hannaher Constantine
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