Abstract: An optical-sheet manufacturing device 1 is provided with a first belt-shaped mold S1, a second belt-shaped mold S2, first and second supply units that supplies resins to the belt-shaped molds S1 and S2, respectively, and first and second embossing units that embosses the supplied resins on the first and second belt-shaped molds S1 and S2 to form first and second embossed sheets A? and B?. The optical-sheet manufacturing device is characterized in that the first embossed sheet A? embossed on the first belt-shaped mold S1 and the second embossed sheet B? embossed on the second belt-shaped mold S2 are shifted by the rotation of the first belt-shaped mold S1 and the second belt-shaped mold S2 and the first embossed sheet A? and the second embossed sheet B? are sandwiched between the first belt-shaped mold S1 and the second belt-shaped mold S2 and are laminated.

Abstract: A sheet-like cleaning material for a molding metal die formed by enclosing a cleaning member in at least two layers of sheet-like base materials, characterized in that the cleaning member is formed of one type of tablet-like, granular, or powdery cleaning member or a sheet-like or a plate-like cleaning member. The cleaning material for the molding metal die desirably involves a forming member together with the cleaning member, the sheet-like base materials are desirably formed of sheet-like fiber base materials with a porosity of 70 vol. % or more, and the sheet-like fiber base materials are used as the outermost layer of the cleaning material for the molding metal die.

Abstract: A mold conditioning sheet comprising at least two base sheets and a mold conditioning component (or a mold conditioning component and a molding member) enclosed between the base sheets. The base sheet as an upper side layer or an outermost layer is a fibrous base sheet having a porosity of 70% or more, and the base sheet as a lower side layer is a fibrous base sheet having a porosity of 40% or less and/or a heat-resistant film.

Abstract: A mold cleaning material of sheet form having an upper side and a lower side and including at least two base sheets and a cleaning member enclosed between the two base sheets. The base sheet on the upper side or as an outermost layer of the mold cleaning material is a fibrous sheet having a porosity of 70% or more, and the base sheet on the lower side is a fibrous sheet having a porosity of 40% or less and/or a heat-resistant film.

Abstract: A sheet-like cleaning material for a molding metal die formed by enclosing a cleaning member in at least two layers of sheet-like base materials, characterized in that the cleaning member is formed of one type of tablet-like, granular, or powdery cleaning member or a sheet-like or a plate-like cleaning member. The cleaning material for the molding metal die desirably involves a forming member together with the cleaning member, the sheet-like base materials are desirably formed of sheet-like fiber base materials with a porosity of 70 vol. % or more, and the sheet-like fiber base materials are used as the outermost layer of the cleaning material for the molding metal die.

Abstract: This invention relates to lens type functional retroreflective sheeting having retroreflective regions and visual functionality presenting regions, the retroreflective sheeting comprising:a base sheet consisting of a support comprising a functional resin layer containing a functional pigment having light-storing or fluorescent properties, microspherical lens-embedding regions in which microspherical lenses are densely distributed on the surface of the functional resin layer of the support so as to form a mono-layer, and microspherical lens-free regions in which substantially no microspherical lens is embedded and the functional resin layer is exposed;a transparent protective film disposed above the microspherical lens-bearing surface of the base sheet; andbonds at which said base sheet and said transparent protective film are partly bonded together. This lens type functional retroreflective sheeting not only afford good visibility to viewers positioned in the direction of the light source (e.g.

Abstract: Ultraviolet luminescent retroreflective sheeting includes a retroreflective portion containing retroreflective elements and an ultraviolet luminescent portion to facilitate nighttime viewing by persons not located at or near a source of light being retroreflected by the retroreflective portion. At least part of the ultraviolet luminescent portion is provided as the bonding lines for bonding the transparent cover sheet to the support sheet to form a series of sealed cells in which the retroreflective elements, which may be of the encapsulated lens-type or the encapsulated cube-corner-type, are disposed. The ultraviolet luminescenct portion includes fluorescent agent which emits light when irradiation by ultraviolet irradiation.