Method of drying coating film formed on pet film surface and coating film drying furnace
US9188386B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 4, 2013 |
| Grant date | Nov 17, 2015 |
| Priority date | — |
| Expiry date | Apr 4, 2033 |
Classification
- Technology area (CPC C)Chemistry; Metallurgy
- CPC primaryC09D5/00
- WIPO fieldSurface technology, coating
- WIPO sectorChemistry
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.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.