| (1) |
In principle, YUPO® stocks are made in cross grain, when compared with the pulp based paper. Please be sure to plan so that Top-Bottom of the book will align in parallel to the grain of paper. |
| (2) |
Hot melt adhesive binding and wire binding are
suited to YUPO® as bookbinding methods. As a guide,
if the book is over 5 mm thick, we recommend adhesive
binding, and if it is less than 5 mm, we recommend
wire binding. |
| (3) |
Loose-leaf style and spiral wire binding can
also be used. |
| (4) |
Ultrasonic sealing can be used when the page
count is low.
- The sealing conditions vary slightly depending
on the total thickness of YUPO® pages to
be sealed, but use the following conditions
as a guide.
| Frequency |
15 kHz |
| Pressure |
2-4kg/cm2 |
| Compression time |
0.3-0.5 seconds |
- The seal tends to become semi-transparent.
|
|
| Adhesive binding |
| |
- Use a mat and gully together. To increase
the strength of the bond, make the gully slightly
deeper for paper, and insert it in a wide
range. Also, increase the quantity of the
adhesive slightly.
- For adhesives, hot melts that have adhesive
strength even after being solidified by EVA
are suitable.
*For example: W6090 and S-231(Asahi Chemical
Synthetic Co., LTD.) and HS-650 (Nitta Gelatin Inc.)
- To prevent thermal deformation of YUPO®
use adhesives at about 180°C
|
|
| Wire binding |
| |
If books are going to be exposed to humidity,
use stainless steel wire to prevent rusting. |
|
| Thread binding |
| |
We do not recommend this method because if the
thread is pulled strongly, the area around the
pinholes in YUPO® can tear.
|
