JP2740859B2 - How to store wood veneer - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a method for preserving a thin wood veneer having a small thickness.

[Prior art] Conventionally, thin veneers obtained by scraping wood and having a thickness of about 0.2 to 1 mm shrink and deform when dried, and sun cracks occur from the conduit grooves and the ends of the veneers. It was kept in a cool and dark place at 2-3 ° C. and kept wet.

[Problems to be Solved by the Invention] Therefore, the above-mentioned thin veneer can be stored for a certain period of time, but it is not only difficult to control the temperature, but also the surface of the veneer has discoloration bacteria and mold. However, it was easy to grow and was not suitable for long-term storage.

Further, since the veneer is wet, it can be handled to a certain extent, but there is also a problem that the veneer is easily torn from an end portion.

[Means for Solving the Problems] The present invention has solved the above-mentioned problems.
After laminating a plurality of thin wet veneers obtained by scraping wood, apply an antiseptic solution to the outer peripheral surface, then seal it with a moisture-impermeable sheet, and then freeze it. And

 Hereinafter, the present invention will be described in detail.

A thin veneer veneer is a veneer obtained by stripping wood with a thickness in the range of about 0.2 to 1 mm, and a veneer with a water content of 27 to 30% or more, which is the fiber saturation point of wood. Say.

Laminate those veneers as they are, or stack each or hundreds of them, then immerse them in a solution containing a preservative, apply the preservative on the entire outer surface, and make it impermeable to water After sealing the whole with a sex sheet, freeze.

As the preservative, a CCA preservative, a boron compound, a fluorine compound, a phosphorus compound, an organotin compound, a naphthenate or the like adjusted to a concentration of 0.5 to 2.0% is used.

Freezing of a wet veneer is frozen while being kept in a freezer or a freezer room adjusted to ０0 ° C. or less, but it is preferable to rapidly freeze at a temperature of マ イ ナ ス 20 ° C. or less, since wood cells are not easily damaged.

As a moisture-impermeable sheet for sealing a veneer treated with an antiseptic, a thin film of polyethylene resin, polypropylene resin or the like is used.

When bonding the veneer stored by the method of the present invention to a substrate such as plywood, the frozen veneer is thawed using a heating device such as a large microwave oven or a dryer, but the thickness is 1 mm. With a thin veneer of the following degree, cracking or the like was hardly observed in the veneer when frozen and thawed once.

[Example] In a state in which 1000 pieces of veneer having a thickness of 0.3 mm and a moisture content of 70% or more were laminated by slicing a wet log, a 1% concentration CCA preservative solution was applied to the peripheral surface thereof. After applying and preserving the preservative at least in the area close to the veneer surface, the entire laminated veneer was sealed with a polypropylene resin film and stored in a freezer at -20 ° C for one year. No discoloration due to mold or mold was observed.

[Effects of the Invention] According to the present invention, it is possible to prevent the components of the drug from scattering into the air, and to sufficiently penetrate the drug into the veneer to maintain the effect. Moreover, since it is frozen and stored in this state, it almost prevents the occurrence of discolored bacteria and mold,
It can be stored for a long time in a beautiful state.

Claims (1)

(57) [Claims] 1. After laminating a plurality of thin wet veneers obtained by scraping wood, applying an antiseptic solution to the outer peripheral surface,
A method for preserving a veneer, characterized in that it is sealed with a water-impermeable sheet and then frozen.