A polyolefin-based film comprising at least one layer permitting printing as a result of laser irradiation; wherein not less than 100 ppm but not greater than 3000 ppm of pigment permitting printing as a result of laser irradiation is present in all layers of the film; haze thereof is not less than 1% but not greater than 30%; and unevenness in thickness thereof in either a machine direction or a transverse direction is not less than 0.1% but not greater than 25%. An object is to provide a film capable of being printed in distinct fashion by a laser, that excels with respect to unevenness in thickness, and that is of high transparency, and at the same time provide packaging which employs such film and on which printing has been directly carried out.

A resin sheet having: a surface layer having hair-like bodies arranged regularly on one surface thereof; and a second layer directly laminated to a surface opposite that of the hair-like bodies of the surface layer, the surface layer comprising a thermoplastic polyurethane resin and the second layer comprising a polymer alloy resin of a polycarbonate-based resin and a polyester-based and resin.

A resin sheet having: a surface layer having hair-like bodies arranged regularly on one surface thereof; and a second layer directly laminated to a surface opposite that of the hair-like bodies of the surface layer, the surface layer comprising a thermoplastic polyurethane resin and the second layer comprising a polymer alloy resin of a polycarbonate-based resin and a polyester-based and resin.

Provided is a method of producing a skin-covered product in which a skin is bonded to a base material, the method capable of performing a roll treatment by a robot to improve work efficiency and quality, and reducing the number of production steps for producing the skin-covered product by immediately performing a rolling step after trimming the bonded skin by vacuum molding.

The method of producing a skin-covered product in which the skin is bonded to the base material according to the present invention includes (1) an integration step of integrating the base material and the skin by vacuum molding while drawing the skin to the base material such that the skin is rolled on a back surface side, (2) a skin trimming step of cutting an extra portion around the skin rolled on a back side in accordance with a form of the base material, and (3) a rolled portion welding step of moving the skin, rolled by a horn tip of an ultrasonic welding machine manually or by a robot, to a skin end portion while sliding the skin on the back surface side of the base material, and then ultrasonically welding the base material and the skin by ultrasonic welding.

Provided is a method of producing a skin-covered product in which a skin is bonded to a base material, the method capable of performing a roll treatment by a robot to improve work efficiency and quality, and reducing the number of production steps for producing the skin-covered product by immediately performing a rolling step after trimming the bonded skin by vacuum molding.

The method of producing a skin-covered product in which the skin is bonded to the base material according to the present invention includes (1) an integration step of integrating the base material and the skin by vacuum molding while drawing the skin to the base material such that the skin is rolled on a back surface side, (2) a skin trimming step of cutting an extra portion around the skin rolled on a back side in accordance with a form of the base material, and (3) a rolled portion welding step of moving the skin, rolled by a horn tip of an ultrasonic welding machine manually or by a robot, to a skin end portion while sliding the skin on the back surface side of the base material, and then ultrasonically welding the base material and the skin by ultrasonic welding.

A composite structure manufacturing method comprising: a lamination step in which a plurality of fiber-reinforced resin sheets are laminated to form a plate-shaped laminate; a pressing deformation step in which a third roller or similar, which rolls along a plate surface of the laminate, is used to press the plate surface of the laminate, thereby forming a recessed section or a protruding section in a prescribed section of the laminate; a short direction deformation step in which, after the pressing deformation step, the laminate is deformed in the short direction to make the long direction cross-section into a prescribed shape; and a long direction deformation step in which, after the pressing deformation step, the laminate is deformed in the long direction to make the short direction cross-section into a prescribed shape.

A composite structure manufacturing method comprising: a lamination step in which a plurality of fiber-reinforced resin sheets are laminated to form a plate-shaped laminate; a pressing deformation step in which a third roller or similar, which rolls along a plate surface of the laminate, is used to press the plate surface of the laminate, thereby forming a recessed section or a protruding section in a prescribed section of the laminate; a short direction deformation step in which, after the pressing deformation step, the laminate is deformed in the short direction to make the long direction cross-section into a prescribed shape; and a long direction deformation step in which, after the pressing deformation step, the laminate is deformed in the long direction to make the short direction cross-section into a prescribed shape.

An elastomeric composition, including at least one skin layer and a core layer, with non-blocking properties such that the elastomeric composition can be wound is provided. The core layer includes an elastomer, and the skin layer includes an elastomer, which may be the same or different from the core layer, and a non-elastic polyolefin. Further, the skin layer can be present as a small portion of the total elastomeric composition, and may maintain the elastic efficiency of the composition.

An elastomeric composition, including at least one skin layer and a core layer, with non-blocking properties such that the elastomeric composition can be wound is provided. The core layer includes an elastomer, and the skin layer includes an elastomer, which may be the same or different from the core layer, and a non-elastic polyolefin. Further, the skin layer can be present as a small portion of the total elastomeric composition, and may maintain the elastic efficiency of the composition.

A decorative sheet for vacuum forming is difficult to peel off during vacuum forming between a first vinyl chloride-based resin layer and a second vinyl chloride-based resin layer and can give a design of various colors. This decorative sheet for vacuum forming includes: a first vinyl chloride-based resin layer containing a vinyl chloride-based resin and a coloring agent; and a second vinyl chloride-based resin layer which is laminated on the first vinyl chloride-based resin layer, contains a vinyl chloride-based resin, and is transparent, wherein the content of titanium oxide particles of the coloring agent is less than 1 part by mass, the first vinyl chloride-based resin layer contains inorganic particles, and at least some of the inorganic particles are calcium carbonate particles.