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 | Typesetting
on computer
Required software : Illustrator, Xpress, Corel Draw, Freehand…
Required equipment : PC or Macintosh
Positive film printing
Required product
: tracing paper
Required equipment : 600 to 1200 dpi laser printer
|
| |
 | Typesetting
on computer
Required software : Illustrator, Xpress, Corel Draw, Freehand…
Required equipment : PC or Macintosh...
| |
| Photopolymer processing | | Rubber
Engraving | | | |
 | A
hard photopolymer plate is exposed to UV light through a negative film
Required
products : film, developer, fixer, hard photopolymer plate
|
 | The
photopolymer plate is washed-out |  | Drying
: to remove excess of water |  | Post
exposure : final hardening | | |
 | Stamps
are engraved in rubber
Required product : laserable rubber |
 | Stamps
are cut by laser beam. | |
| Matrix board moulding | | Stamps
cleaning | | | |
 | The
photopolymer plate is pressed into the matrix board to get a mold
Required
products : matrix board, release spray, hard photopolymer plate
|
 | Rubber
is pressed into the mold
Required products : rubber, French chalk
|
| |
 | Stamps
are cleaned with soapy water | |
| Rubber stamp mounting | | Stamp
mounting | | | |
 | Stamps
are cut and placed in a mount
Required products : adhesive foam, wooden or
automatic mount.
| | |
 | Stamps
are cut and placed in a mount
Required products : adhesive foam, wooden or
automatic mount.
| | | |
| COMPARATIVE
CHART OF BOTH TECHNIQUES : ADVANTAGES / DRAWBACKS |
- Lower cost (equipment 4 times less expensive)
- Once the mold has been
made, new copies of the same stamps are inexpensive and quickly made
- Very
important relief , appreciated by customers.
| |
- Urgent stamps are quickly made (within 3 min 30 sec for a single stamp
with a 25 Watt laser)
- No manpower required when the laser is working.
- With
laser engravers, it is also possible to engrave other materials such as wood,
plexiglass, plastics…
|
- Processing time is the same for 1 or 50 stamps : 1 hour 10 min.
- Manpower
is more important (several processing steps).
| |
- Processing time is very slow for A4 sizes : 2 hours 40 min
- Depths
and reliefs are less important than with conventional technique
- The price
for additional copies of a same stamp is as much important as the price of the
first stamp.
- The stamp price is very important due to cost of the machine.
| | |
| PROCESSING
TIMES AND COSTS OF BOTH TECHNIQUES |
Processing
time for 1 A 4 size
(about 40 stamps) | | 1
hour 10 min
(+ typesetting) | | 2
hours 40 min
(with 25 w laser)
(+ typesetting) | | Processing
time for a single stamp | | 1
hour 10 min
Processing time is not proportional to surface. | | 3
or 4 minutes
Processing time depends on the stamp surface | | Processing
time for further copies of a same stamp | | 3
minutes
(it is just necessary to cure rubber) | | 3
to 4 minutes
(all processing steps should be made) | Cost
for one stamp
(not including manpower, mount, equipment cost) | | 0.45
Euros | | 0.24
Euros |
Cost for several copies to the same stamp (not including manpower, mount, equipment
cost) - First stamps
- Further stamps
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0.45 Euros 0.05 Euros
| |
0.24 Euros 0.24 Euros
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