Journal of Wood Science

Official Journal of the Japan Wood Research Society

Table 1 Pretreatment and pressing conditions of plywood

From: The effects of wetting and scratching pretreatment of veneers on shear strength of binderless plywood made from sugi (Japanese cedar, Cryptomeria japonica)

Sample	Pretreatment conditions				Pressing conditions
Sample	Time for soaking in water	Tool for scratching	Scratching direction	Scratching times	Temperature, °C	Pressure schedule	Time, min
A	12 h	Sandpaper (#40)	Open and close	50–60 sets	220	1-step	30
B						1-step	45
C						4-step
D					200	4-step
E	12 h	Wire brush	Open	20–40 times	220	4-step	45
F				40–60 times
G				60–80 times
H			Close	40–60 times
I	1 min	Wire brush	Open	40–60 times	220	1-step	30
J			Circular	50 sets
K				100 sets
L				50 sets			20
M				50 sets			45

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