A flexographic printing raw plate including: a support; a photosensitive resin composition layer on the support; an intermediate layer; and an infrared ablation layer in the presented order, wherein in a tensile stress-strain curve diagram measured by molding the intermediate layer into dumbbell shape No. 8 with a thickness of 100 ?m in accordance with JIS K 6251 (2017), an elongation at a breaking point is 5% or more and 200% or less, an elongation at a point where the stress is maximized is 3% or more and 200% or less, and a maximum value of the stress is 1.0 MPa or more and 15 MPa or less.

Articles that include a foam layer, having a first surface and a second opposing surface. The articles include a first pressure sensitive adhesive layer, having a first surface and a second opposing surface, the first pressure sensitive adhesive layer including a poly(meth)acrylate polymer and an epoxy functional nanoparticle. The articles also include a first primer layer, the first primer layer including a thermoplastic polymeric binder. The first primer layer is positioned between the first surface of the foam layer and the second surface of the first pressure sensitive adhesive layer. Assemblies that include such articles are also disclosed herein.

Articles that include a foam layer, having a first surface and a second opposing surface. The articles include a first pressure sensitive adhesive layer, having a first surface and a second opposing surface, the first pressure sensitive adhesive layer including a poly(meth)acrylate polymer and an epoxy functional nanoparticle. The articles also include a first primer layer, the first primer layer including a thermoplastic polymeric binder. The first primer layer is positioned between the first surface of the foam layer and the second surface of the first pressure sensitive adhesive layer. Assemblies that include such articles are also disclosed herein.

Provided are a functional cylinder body, including a plurality of layers having magnetic patterns and non-magnetic patterns formed adjacently, and a manufacturing method therefor. The functional cylinder body comprises at least: a cylinder main body; a first functional pattern part, which includes first patterns and first functional patterns, the first patterns having first recess patterns and first non-recess patterns formed by forming recesses on a first material layer made of any one of a magnetic material and a non-magnetic material, the first functional patterns being made of any one of the magnetic material and the non-magnetic material embedded in the first recess patterns; and a second functional pattern part, which is formed in a position of the cylinder main body shallower than a position of the first recess patterns and has magnetic patterns of the magnetic material and non-magnetic patterns of the non-magnetic material formed adjacently.

Provided are a functional cylinder body, including a plurality of layers having magnetic patterns and non-magnetic patterns formed adjacently, and a manufacturing method therefor. The functional cylinder body comprises at least: a cylinder main body; a first functional pattern part, which includes first patterns and first functional patterns, the first patterns having first recess patterns and first non-recess patterns formed by forming recesses on a first material layer made of any one of a magnetic material and a non-magnetic material, the first functional patterns being made of any one of the magnetic material and the non-magnetic material embedded in the first recess patterns; and a second functional pattern part, which is formed in a position of the cylinder main body shallower than a position of the first recess patterns and has magnetic patterns of the magnetic material and non-magnetic patterns of the non-magnetic material formed adjacently.

The present invention is to provide a flexographic printing plate having high ink transferability and making it possible to perform printing with a high ink density in a solid portion, a flexographic printing plate precursor, a method for manufacturing a flexographic printing plate, and a method for manufacturing a flexographic printing plate precursor. A flexographic printing plate of the present invention includes a relief layer including a non-image area and an image area having an uneven structure formed on a surface, in which the uneven structure is composed of recessed portions consisting of a plurality of grooves and projecting portions other than recessed portions, each of the plurality of grooves has a length of at least 30 m, all of the plurality of grooves are grooves having a line edge roughness in a range of 0.5 to 2.5 m in a region of 30 m of the groove in a longitudinal direction, a depth of the recessed portion is 5 to 25 m, and a ratio of the projecting portion is 5% to 60% of a geometric area of the uneven structure.

The present invention is to provide a flexographic printing plate having high ink transferability and making it possible to perform printing with a high ink density in a solid portion, a flexographic printing plate precursor, a method for manufacturing a flexographic printing plate, and a method for manufacturing a flexographic printing plate precursor. A flexographic printing plate of the present invention includes a relief layer including a non-image area and an image area having an uneven structure formed on a surface, in which the uneven structure is composed of recessed portions consisting of a plurality of grooves and projecting portions other than recessed portions, each of the plurality of grooves has a length of at least 30 m, all of the plurality of grooves are grooves having a line edge roughness in a range of 0.5 to 2.5 m in a region of 30 m of the groove in a longitudinal direction, a depth of the recessed portion is 5 to 25 m, and a ratio of the projecting portion is 5% to 60% of a geometric area of the uneven structure.

An object of the present invention is to provide a flexographic printing plate having excellent ink transferability in a solid portion and the like and having good printing quality in a halftone portion. The flexographic printing plate of the present invention is a flexographic printing plate having a relief layer including a non-image area and an image area, in which the image area has a halftone dot portion having a halftone dot area ratio of more than 0% and less than 100%, and a solid portion having a halftone dot area ratio of 100%, small dots in the halftone dot portion and the solid portion or small dots in the halftone dot portion have two or more recessed portions having different depths according to a halftone dot area ratio, and the two or more recessed portions having different depths are recessed portions whose depth becomes deeper as the halftone dot area ratio increases.

An object of the present invention is to provide a flexographic printing plate having excellent ink transferability in a solid portion and the like and having good printing quality in a halftone portion. The flexographic printing plate of the present invention is a flexographic printing plate having a relief layer including a non-image area and an image area, in which the image area has a halftone dot portion having a halftone dot area ratio of more than 0% and less than 100%, and a solid portion having a halftone dot area ratio of 100%, small dots in the halftone dot portion and the solid portion or small dots in the halftone dot portion have two or more recessed portions having different depths according to a halftone dot area ratio, and the two or more recessed portions having different depths are recessed portions whose depth becomes deeper as the halftone dot area ratio increases.

A double-sided adhesive flexographic printing plate underlay for use in the manufacture and mounting of flexographic printing plates is provided. The underlay is carrier sheet with a solvent acrylic adhesive stripe-coating provided on both sides thereof. In addition, a siliconized release liner is provided to cover one of the coated sides of the carrier sheet. Both the carrier sheet and the release liner are formed from a glass clear polyethylene terephthalate (PET) and the solvent acrylic adhesive is transparent such that ultraviolent light can readily pass through the underlay. The construction of the underlay is such that it can withstand the washout conditions employed in the manufacture of both liquid and solid photopolymer flexographic printing plates.