摘要:
Disclosed herein is a method of manufacturing a natural cork film, which includes forming a thin cork layer by slicing a prepared natural cork material, forming a fiber layer by attaching a fiber sheet to one surface of the cork layer formed in the forming a thin cork layer, pre-treating a lamination of the cork layer and the fiber layer formed in the forming a fiber layer, for preventing discoloration of the cork layer, and forming a resin layer by attaching a resin sheet to the fiber layer passing through the pre-treating a lamination of the cork layer and the fiber layer. Accordingly, it is possible to prevent the manufactured cork film from naturally discoloring due to light and to significantly reduce a phenomenon such as brittleness or wrinkling caused when the cork layer is decolorized alone.
摘要:
A method for deodorization of cork accomplished by applying steam volatilization to remove substances originating offensive odor in the cork is disclosed. The method has a first step of putting the cork into a container, a second step of supplying steam generated in a steam generator to the container, and a third step of discharging the steam along with the substance originating the offensive odor from the container. An apparatus for deodorization of cork by this method is also disclosed.
摘要:
A material containing from 0.1 to 10 parts of polyethylene or ethylene vinyl acetate copolymer per 1 part of natural cork is provided as a substitute for natural cork in stoppers for liquid food or wine bottles.
摘要:
An apparatus for and a method of removing fibrous material from a mineral ore. In the described embodiment, the ore is first crushed in a suitable crushing apparatus to the proper feed size for a first grinding mill, normally a rod mill. The first grinding mill is so adjusted or designed as to grind the ore fed thereto to the coarsest grind at which most of the fibrous material is liberated from the rest of the ore. The fibrous material is a relatively coarse size when liberated at this grinding level. The ground material discharged from the first grinding mill is then fed as a slurry to a screening device having openings which are so sized as to retain on the screen as ''''oversize'''' the liberated fibrous material, but which pass the defibered slurry through the screen as ''''undersize.'''' The defibered slurry is then passed to an additional grinding stage or stages in which the valuable or desired mineral is liberated to a desired degree from the defibered gangue material.