Provided is a gravure printing method by which high printing density and excellent highlight suitability are obtained, even if a gravure plate having high resolution and reduced thickness is used. The gravure printing method comprises: using an aqueous ink having a Zahn cup #3 viscosity at 20 C. of 11.0 seconds or more and 20.0 seconds or less, and having an evaporation rate of 30 mass % or less in a drying test, the drying test involving drying 1 g of the ink at a temperature of 40 C. and an air flow of 1,400 L/min for 30 minutes; and transferring 1 ml/m.sup.2 or more and 7 ml/m.sup.2 or less of the ink onto a printing medium.

According to a first aspect of the invention, there is provided a method of processing a printing body, the printing body comprising a substrate and a diamond-like carbon (DLC) layer on the substrate, the method comprising engraving a printing pattern into the DLC layer. This method is advantageous, as it reduces the number of process steps required in processing the printing body, and reduces the loss of fine detail in the printing pattern.

According to a first aspect of the invention, there is provided a method of processing a printing body, the printing body comprising a substrate and a diamond-like carbon (DLC) layer on the substrate, the method comprising engraving a printing pattern into the DLC layer. This method is advantageous, as it reduces the number of process steps required in processing the printing body, and reduces the loss of fine detail in the printing pattern.

A laser-engravable pad printing plate comprising at least (a) a metal support, (b) an adhesion layer, (c) a laser-engravable recording layer having a layer thickness of 20 m to 200 m, (d) a cover film,
characterized in that the laser-engravable recording layer (c) comprises (c1) 40 to 95 wt % of a polyvinyl alcohol, (c2) 5 to 50 wt % of an IR absorber, (c3) 0 to 30 wt % of an inorganic filler, (c4) 0 to 20 wt % of a crosslinker, and (c5) 0 to 10 wt % of further additives.

A laser-engravable pad printing plate comprising at least (a) a metal support, (b) an adhesion layer, (c) a laser-engravable recording layer having a layer thickness of 20 m to 200 m, (d) a cover film,
characterized in that the laser-engravable recording layer (c) comprises (c1) 40 to 95 wt % of a polyvinyl alcohol, (c2) 5 to 50 wt % of an IR absorber, (c3) 0 to 30 wt % of an inorganic filler, (c4) 0 to 20 wt % of a crosslinker, and (c5) 0 to 10 wt % of further additives.

The present invention relates to a method for manufacturing a clich for offset printing and a clich for offset printing.

The present invention relates to a method for manufacturing a clich for offset printing and a clich for offset printing.

A printing plate for gravure printing includes a gravure roll with a cylindrical shape, and printing portions corresponding to a graphic pattern to be printed is provided on an outer circumferential surface thereof. Each of the printing portions includes first banks extending in a substantially parallel direction to a rotation direction, second banks extending in a direction substantially orthogonal to the rotation direction and in each of which at least one end portion is connected to the first banks, and cells defined by the first banks and the second banks, and in the cell located at a print starting end portion of each of the printing portions which first comes into contact with a printing object in the rotation direction, a partition bank which divides the cell in a diagonal direction is provided.

A gravure printing roll that enables printing of fine dots with a size close to that of cells and enables printing on a print subject, such as a printing substrate, without changing the appearance of the print subject. The gravure printing roll includes: a gravure printing roll body; and cells formed in a peripheral surface of the gravure printing roll body. Each of the cells has an opening with a ratio between a dimension in a circumferential direction of the gravure printing roll body and a dimension in an axial center direction of the gravure printing roll body (dimension in the circumferential direction/dimension in the axial center direction) being 1.15 to 7, and have an opening area of 3900 m.sup.2 or smaller.

A gravure printing roll that enables printing of fine dots with a size close to that of cells and enables printing on a print subject, such as a printing substrate, without changing the appearance of the print subject. The gravure printing roll includes: a gravure printing roll body; and cells formed in a peripheral surface of the gravure printing roll body. Each of the cells has an opening with a ratio between a dimension in a circumferential direction of the gravure printing roll body and a dimension in an axial center direction of the gravure printing roll body (dimension in the circumferential direction/dimension in the axial center direction) being 1.15 to 7, and have an opening area of 3900 m.sup.2 or smaller.