Patent ID: 8093310

Claim:
A manufacturing method for sheet-like products of photoreaction comprising: conveying a multilayer body, made of a photoreactive product and sheet-like members in layers that sandwich the photoreactive product, in a predetermined direction; and inducing a polymerization reaction in the photoreactive product by irradiating one side or two sides of the conveyed multilayer body in the conveying with ultraviolet rays emitted from plural LEDs, wherein the multilayer body conveyed in the predetermined direction is cooled by cooling devices, each of the cooling devices being placed adjacent to a series of the plural LEDs successively arranged along the predetermined direction in which the multilayer body is conveyed, such that a combination is formed that comprises a series of the successively arranged plural LEDs in an area and a cooling device following the area, and the combination is repeated plural times along the predetermined direction in which the multilayer body is conveyed, wherein the cooling devices are placed as a pair with one of the paired cooling devices being placed over the conveyed multilayer body and another of the paired cooling devices being placed under the conveyed multilayer body, and wherein the cooling devices cool the conveyed multilayer body by blowing air against the two sides of the conveyed multilayer body.