A right reading negative, from the back of the film, exposes the male photopolymer embossing plate.
The positive is made from the negative and will expose the female plate. In making the positive it is spread approximately .010″. It is exposed emulsion to emulsion and will be wrong reading from the back of the positive.
To spread the positive, a sheet of clear acetate approximately .005″ is placed between the negative and a sheet of high contrast film in a print frame.
To prevent crushing the paper while embossing, spreading the die is necessary.
A 100 watt bulb at a 45 degree angle and 4′ from the print frame exposes the film, while the print frame is rotated on a lazy susan. a two second exposure would be a good start.
A pair of embossing dies is usually made from MS-83 and
MS-100, or MS-100 and MS-130. The male die is made with the thinner material.
Should you have any questions, call our Technical Service Department at 718-454-0654.