The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
May. 05, 2009
Filed:
Sep. 25, 2007
Masaki Sonobe, Odawara, JP;
Takashi Yahiro, Minami-Ashigara, JP;
Masaki Sonobe, Odawara, JP;
Takashi Yahiro, Minami-Ashigara, JP;
FUJIFILM Corporation, Tokyo, JP;
Abstract
The present invention provides a method for drying a coating film comprising drying a coating film of an organic solvent-containing coating liquid applied to a running band-shaped flexible substrate, the drying method comprising the steps of: providing a heater at a position opposed to the band-shaped flexible substrate at a running position immediately after coating; and heating the band-shaped flexible substrate by the heater; wherein when T( ° C.) denotes the surface temperature of the band-shaped flexible substrate; T( ° C.) denotes the surface temperature of the heater; λ(W/m·K) denotes the heat-transfer coefficient of air; d(m) denotes the distance between the heater and the band-shaped flexible substrate (web); η denotes the efficiency of heat transfer; and σ denotes the Stefan-Boltzmann constant (5.670×10W/mK), the ratio of radiant heat transfer represented by Q/(Q+Q) is 0.25 or more and 0.6 or less, wherein Qand Qare represented by the following equations, respectively: Q=λ/d·(T−T) where Qdenotes heat transfer by air, and Q=η{(T+273)−(T+273)} where Qdenotes heat transfer by radiant.