JPS58156176A - Method of drying woody veneer - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention] This invention relates to a method for drying wood veneers.

As a drying method for wood veneers, seasoning by air drying,
Heat drying using llAt, infrared rays, microwaves, etc. is conventionally known, but these methods take a long time and cause problems such as deformation of the veneer and uneven drying. was.

Accordingly, an object of the present invention is to provide a method for drying wood veneers that can shorten the required time and reduce veneer deformation and uneven drying.

An embodiment of this invention will be described below. That is, in this method of drying wood veneer, the wood veneer is dried to a predetermined moisture content by the following procedure.

11110 thick Agati rotary veneer, dyed f &
<Sminaw V Mealing 1 round 3GO, 211
(W/V), 95°C) for 3 hours to make a dyed grill plate (moisture content: 200%).

(21 The dyed veneer board t-10 minutes; left in static electricity to evaporate water on the surface of the wire board.

(3) The above-mentioned dyed wire board was immersed in Methi V A M Co pv1g solution at t130°C for 10 minutes, and then heated and dried for 5 minutes in a steam dryer kept at a temperature of 100χ. to adjust the desired moisture content (45 in this example).

In this way, after the immersion treatment in the methyl alcohol solution, heating and drying is performed, so that it is possible to shorten the required time, reduce deformation of the veneer, and reduce drying unevenness.

In the 1ItI distribution example, a methyl alcohol solution was used.
Although we have shown the case where #1 is used, it goes without saying that #1 or #1 may also be used.

As described above, the method for drying wood veneers of the present invention involves immersing the wood veneers in an aqueous solution and then heating and drying them. iiS.

This has the effect of reducing deformation of heavy plates and uneven drying.

Next, a proposed example of the measurement sun 1M fixture when using a spectrophotometer integrating sphere to measure the reflectance of a plate-like object or a film-like object such as the wood veneer is shown in Figures 1 to 3. It will be explained below based on this.

This measurement sump i fixture has an octagonal prism shape as shown in FIG. 1, and has a light projection hole 1a for the sump V in a part of the peripheral wall.

7. A measurement sample fixture that can be set on a spectrophotometer integrating sphere 2 having an outer casing 1 in which a lens projection hole 1b is formed, the fixture being removably installed in close contact with the outer surface of the outer cylinder l. A plate-shaped fixture body 3, a light projection hole 4 formed in this fixture main body 3, and the light projection hole 4'f: a fixture body 3 sandwiched between
It consists of a pair of sample holding pieces 5.5 arranged on the left and right sides of the front surface.

The fixture main body 3rt, self 11E1 part t with respect to the intermediate surface part
The outer cylinder 1111 of the spectrophotometer integrating sphere 2 has a boat-shaped cross section bent at an angle of -135 degrees on the back surface 11! The three sides of the outer casing are arranged so that they are flush with each other, and the sun 1M light projection hole 1at? When the intermediate surface of the fixture main body 3 is placed so as to face one region of the fixing device, the light emitting hole 4θ position is set so that the sample light emitting hole 1m and the light emitting hole 4 overlap concentrically. It is set.

In addition, four small protrusions 4@... facing the center position of the light emitting hole 4 are formed at equal intervals on the inner peripheral edge of the R-marked light emitting hole 4, and the extension lines of these small protrusions 4a... intersect. The position is determined based on the center of the light projection hole 4.

Next, a description will be given of procedure 1 for placing the measurement sample A/1 on the spectrophotometer integrating sphere using this measurement sample fixture.

Hold the measurement sample 6 with the sump holding piece 5.1.
Then, the Kfl11 constant sample 6 is positioned so that the portion of the measurement sample 6 to be measured is located at the center of the light projection hole 4. At this time, the center position of the light projection hole 4 is determined by the small protrusions 4a...

Measurement sump V fixture with measurement sump 1A/6 set,
As shown in 1g3(2), it is installed in close contact with the outer peripheral surface of the outer cylinder 1 of the spectrophotometer integrating sphere 2 so that the intermediate surface corresponds to the surface having the sun 1V light projection hole 1al.

In FIG. 3, numeral 7 designates a nine-white board with reference light projection holes 1bK arranged therein.

With this configuration, the previous measurement procedure, which was performed by installing the measurement sap V6 directly in close contact with the surface forming the sump V light projection hole 1a of the spectrophotometer integrating sphere outer housing 1, can be improved. As shown in FIG. By simply performing the alignment, the desired measurement point can be easily aligned to the center of the sample light projection hole 1a, the reflectance measurement accuracy can be greatly improved, and the operation can be simplified.

[Brief explanation of the drawing]

Figure 1 is a perspective view of the spectrophotometer integrating sphere, Figure 2 is a
+131 and IQ are respectively a plan view, a front view, and a side view of the measurement sample fixing device, and FIG. 3 is a perspective view showing the center shape 01 of the measurement sample fixing device.

Claims (1)

[Claims] A method for drying a wood veneer, which comprises immersing the wood veneer in an AVco, -jM solution and then heating and drying it.