| 摘要 |
PURPOSE:To enable mass production of the same original plate to be performed by printing a pattern with the use of ink coloring matter containing carbon on the surface of thermosensitive film constituting a perforated plate and piercing holes in film through projection of heat ray. CONSTITUTION:An image 14 is printed on thermosensitive film 13 which is a perforated plate with thermosensitive film 13 adhered on a porous support 11 through an adhesive layer 12. This laminate is mounted on a table with the thermosensitive film 13 facing upward, then is flashed from above by a lamp (light such as near infrared ray or infrared ray). Consequently an image 14 absorbs a light energy, generating heat because of black ink containing carbon used. Thus thermosensitive film develops pierced holes. |
