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:
Nov. 17, 2015
Filed:
Apr. 04, 2013
Ngk Insulators, Ltd., Nagoya-Shi, JP;
NGK Insulators, Ltd., Nagoya, JP;
Abstract
A method of drying a coating film formed on a surface of a PET film includes radiating an infrared ray having a dominant wavelength of 3.5 μm or less from an infrared heater onto a PET film on whose surface the coating film containing water or an organic solvent having an absorption spectrum of 3.5 μm or less has been formed, where the infrared heater has a structure such that an outer circumference of a filament is covered with a protection tube, and a partition wall for forming a flow passageway of a cooling fluid that restrains rise in temperature of a heater surface is provided in a space surrounding this protection tube, and bringing cooling air into contact with the surface of the PET film/coating film has been formed, so as to dry the PET film at a temperature lower than a glass transition point of the PET film.