초록 ▼

This disclosure is concerned with a method of transfer-coating electron-beam-curable materials, by applying such materials to the surface of a cooled drum, either through a sheet or web carrying the same over the drum or from the drum surface itself, curing the material against the drum at a region

This disclosure is concerned with a method of transfer-coating electron-beam-curable materials, by applying such materials to the surface of a cooled drum, either through a sheet or web carrying the same over the drum or from the drum surface itself, curing the material against the drum at a region of electron-beam radiation directed thereupon and releasing the cured material from the drum surface; and with the latter, where desired, reflecting radiation back into the material being cured.

대표청구항 ▼

A method of transfer-coating electron-beam-curable material, that comprises, drawing over the external surface of a rotating metal drum a first web carrying such material, drawing a second web past the drum in contact with the first web at a predetermined region adjacent to the external surface of t

A method of transfer-coating electron-beam-curable material, that comprises, drawing over the external surface of a rotating metal drum a first web carrying such material, drawing a second web past the drum in contact with the first web at a predetermined region adjacent to the external surface of the drum, and directing electron-beam radiation upon said region from a location external to the drum to cure said material and transfer the same to said second web. A method of transfer-coating electron-beam-curable material, that comprises applying said material to the external surface of a rotary metal drum, rotating said drum past a region where elctron-beam radiation is directed upon the external surface of the drum from a location external to the drum to cure said electron-beam-curable material, and providing sufficient shielding in the material of the drum itself to prevent appreciable radiation generated by the stopping of the electron beam radiation in said electron-beam-curable material and the drum from passing through the drum to the side of the drum opposite to said region and to reduce the radiation level at said side of the drum to no more than 2.5 mr/hr for electron-beam radiation up to 300 KEV energy level.