HOT-STAMPING FOIL AND PRINTING BODY EQUIPPED WITH LAMINATED OPTICAL DECORATION BODY

This hot-stamping foil which is transferred, by transfer thermal pressure being applied thereto, to a transfer target, is provided with a carrier which is a base film or a coated base film, a laminated optical decoration body including a laminated optical structure formed on the carrier, and a sinking control layer which comprises a soft resin and a deformation limiting agent and which is formed on the laminated optical structure, and an adhesive layer formed on the sinking control layer, wherein: the adhesive layer comprises a resin component which contains a thermoplastic resin having a glass transition temperature lower than a normal temperature and which defines the thickness of the adhesive layer, and comprises spacer particles which each have a particle diameter greater than the thickness of the adhesive layer and some of which protrude from the resin component; and the spacer particles sink into the sinking control layer after transfer thermal pressure is applied.

HOT-STAMPING FOIL AND PRINTING BODY EQUIPPED WITH LAMINATED OPTICAL DECORATION BODY

A hot-stamping foil which is transferred to a transfer target by applying a transfer thermal pressure, including: a carrier that is a base film or a coated base film; a laminated optical decoration having a laminated optical structure formed on the carrier; a sinking control layer which contains a soft resin and a deformation limiting agent and is formed on the laminated optical structure; and an adhesive layer which is formed on the sinking control layer, wherein the adhesive layer contains a resin component which contains a thermoplastic resin having a glass transition temperature lower than room temperature and defines the thickness of the adhesive layer, and spacer particles which have a particle size larger than the thickness of the adhesive layer and some of which protrude from the resin component, and wherein the spacer particles sink into the sinking control layer after transfer thermal pressing.

DISPLAY BODY AND METHOD FOR MANUFACTURING DISPLAY BODY

Provided is a display body having a high resistance to forgery. This display body (1) has, on a set reference surface (H), a micro protrusion-and-recess structure layer (4) on which a plurality of microstructures (4A) are disposed along the reference surface (H). Each of the microstructures (4A) comprises a prism structure which has a triangular cross-sectional shape, and has a first surface (4Aa) that is inclined with respect to the reference surface (H) as seen from the side and a second surface (4Ab), the inclination angle of which is greater with respect to the reference surface (H) than that of the first surface (4Aa), and which comprises a material that transmits light. Colored layers 7 are provided, as examples of a functional layer, on the second surfaces (4Ab) of the microstructures (4A) for all or a portion of the plurality of microstructures (4A).

HOT-STAMPING FOIL, HOT-STAMPING FOIL PRODUCTION METHOD, AND PRINTING BODY EQUIPPED WITH LAMINATED OPTICAL DECORATION BODY

This hot-stamping foil is provided with a carrier which is a base film or a coated-base film, and a laminated optical decoration body that is formed on the carrier so as to be peelable, wherein: the laminated optical decoration body has a laminated optical structure, an anchor layer which is formed at a side, on the laminated optical structure, opposite to the carrier and which is composed of a mixture of an acid-modified polyolefin and a vinyl chloride-vinyl acetate copolymer, and an adhesive layer formed at a side, on the anchor layer, opposite to the laminated optical structure; the adhesive layer has an adhesive domain containing a thermoplastic acid-modified polyolefin as a main agent and a non-adhesive domain containing an antiblocking agent as a main agent; the antiblocking agent is a resin filler and/or an inorganic filler; and the glass transition temperature of the antiblocking agent is higher than 60°C.

OPTICAL ELEMENT AND AUTHENTICATION BODY

An optical element according to the present invention is provided with a grating structure, and the grating structure includes a first grating structure and a second grating structure. An uneven face thereof includes: a first region, where the first grating structure is located; and a second region, which is in proximity to the first region in plan view as viewed in the direction facing a first face thereof and where the second grating structure is located. The azimuth of the first grating structure and the azimuth of the second grating structure are equal to each other. The grating periods of the first grating structure and the second grating structure are 250-500 nm, and the difference between the grating period of the first grating structure and the grating period of the second grating structure is not less than 20 nm.

OPTICAL ELEMENT, TRANSFER FOIL, AUTHENTICATION OBJECT, AND METHOD FOR VERIFYING AUTHENTICATION OBJECT

In the present invention, a subwavelength grating displays a colored image exhibiting a color corresponding to a grating period of the subwavelength grating in a direction of reflection, which includes a direction of regular reflection. A relief surface displays a reflected image from monochromatic reflected light in a direction of reflection, which includes a direction different from the direction of regular reflection. An optical element has a first state where the colored image and the reflected image are not displayed, a second state where primarily the colored image is displayed, and a third state where primarily the reflected image is displayed. An angle formed by a plane in which the optical element spreads and a plane that includes an observer's gaze is an observation angle. The optical element is observed in the first state, the second state, or the third state, depending on the observation angle.

HOT-STAMPING FOIL, HOT-STAMPING FOIL PRODUCTION METHOD, AND PRINTING BODY EQUIPPED WITH LAMINATED OPTICAL DECORATION BODY

A hot-stamping foil has a carrier that is a base film or a coated base film, and a laminated optical decoration formed on the carrier in a removable manner. The laminated optical decoration includes a laminated optical structure, an anchor layer formed on the laminated optical structure at a side opposite against the carrier, the anchor layer being a mixture of an acid-modified polyolefin and a vinyl chloride-vinyl acetate copolymer, and an adhesive layer which is formed on the anchor layer at a side opposite against the laminated optical structure. The adhesive layer has an adhesive domain containing an acid-modified polyolefin as a major component, and a non-adhesive domain containing a blocking preventing agent as a major component. The blocking preventing agent is one or both of a resin filler and an inorganic filler. A glass transition point of the blocking preventing agent is greater than 60 °C.

OPTICAL ELEMENT, TRANSFER FOIL, AUTHENTICATION OBJECT, AND METHOD FOR VERIFYING AUTHENTICATION OBJECT

A subwavelength grating displays a colored image exhibiting a color corresponding to a grating period of a subwavelength grating in reflection directions including a specular reflection direction. A relief surface displays a reflection image in monochromatic reflected light in reflection directions including a direction different from the specular reflection direction. An optical element has a first state in which neither a colored image nor a reflection image is displayed, a second state in which the colored image is mainly displayed, and a third state in which the reflection image is mainly displayed. A plane in which the optical element is disposed and a plane including a line of sight of an observer form an observation angle therebetween. The optical element is observed in any of the first, second and third states according to the observation angle.

OPTICAL ELEMENT, TRANSFER FOIL, AUTHENTICATION MEDIUM, AND METHOD OF VERIFYING AUTHENTICATION MEDIUM

A subwavelength grating displaying a colored image exhibiting a color corresponding to a grating period of a subwavelength grating in reflection directions including a specular reflection direction. A relief surface displaying a reflection image in monochromatic reflected light in reflection directions including a direction different from the specular reflection direction. An optical element has a first state in which neither a colored image nor a reflection image is displayed, a second state in which the colored image is mainly displayed, and a third state in which the reflection image is mainly displayed. A plane in which the optical element is disposed and a plane including a line of sight of an observer form an observation angle therebetween. The optical element is observed in any of the first, second and third states according to the observation angle. 1. An optical element , comprising:a first layer,a second layer contacting the first layer, anda third layer contacting the second layer, each layer having optical transparency, whereinthe first layer is a resin layer having a first refractive index and having a first surface contacting the second layer, at least part of the first surface including a subwavelength grating;the second layer is a dielectric layer having a second refractive index which is higher than the first refractive index and having a second surface contacting the first surface of the first layer, the second surface having asperities conforming to the subwavelength grating;the third layer is a resin layer having a third refractive index lower than the second refractive index;any of the first layer, the second layer, and the third layer is a relief layer, the relief layer having a relief surface including a plurality of reflective surfaces, the reflective surfaces adjacent to each other having a pitch therebetween greater than a pitch of the subwavelength grating;when observing a state in which light is applied to the optical element from a light ...

HOT-STAMPING FOIL AND PRINT EQUIPPED WITH LAMINATED OPTICAL DECORATION

A hot-stamping foil which is transferred to a transfer target by applying a transfer thermal pressure, including: a carrier that is a base film or a coated base film; a laminated optical decoration having a laminated optical structure formed on the carrier; a sinking control layer which contains a soft resin and a deformation limiting agent and is formed on the laminated optical structure; and an adhesive layer which is formed on the sinking control layer, wherein the adhesive layer contains a resin component which contains a thermoplastic resin having a glass transition temperature lower than room temperature and defines the thickness of the adhesive layer, and spacer particles which have a particle size larger than the thickness of the adhesive layer and some of which protrude from the resin component, and wherein the spacer particles sink into the sinking control layer after transfer thermal pressing. 1. A hot-stamping foil which is transferred to a transfer target by applying a transfer thermal pressure , comprising:a carrier that is a base film or a coated base film;a laminated optical decoration having a laminated optical structure formed on the carrier;a sinking control layer which contains a soft resin and a deformation limiting agent and is formed on the laminated optical structure; andan adhesive layer which is formed on the sinking control layer, a resin component which contains a thermoplastic resin having a glass transition temperature lower than room temperature and defines a thickness of the adhesive layer, and', 'spacer particles which have a particle size larger than the thickness of the adhesive layer and a portion of which protrude from the resin component, and, 'wherein the adhesive layer contains'}wherein the spacer particles sink into the sinking control layer after transfer thermal pressing.2. The hot-stamping foil according to claim 1 ,wherein the deformation limiting agent contains at least one of inorganic powder fillers having a particle ...

HOT-STAMPING FOIL, MANUFACTURING METHOD THEREOF, AND PRINT EQUIPPED WITH LAMINATED OPTICAL DECORATION

A hot-stamping foil has a carrier that is a base film or a coated base film, and a laminated optical decoration formed on the carrier in a removable manner. The laminated optical decoration includes a laminated optical structure, an anchor layer formed on the laminated optical structure at a side opposite against the carrier, the anchor layer being a mixture of an acid-modified polyolefin and a vinyl chloride-vinyl acetate copolymer, and an adhesive layer which is formed on the anchor layer at a side opposite against the laminated optical structure. The adhesive layer has an adhesive domain containing an acid-modified polyolefin as a major component, and a non-adhesive domain containing a blocking preventing agent as a major component. The blocking preventing agent is one or both of a resin filler and an inorganic filler. A glass transition point of the blocking preventing agent is greater than 60° C. 1. A hot-stamping foil comprising:a carrier that is a base film or a coated base film; anda laminated optical decoration formed on the carrier in a removable manner, a laminated optical structure;', 'an anchor layer formed on the laminated optical structure at a side opposite against the carrier, the anchor layer being a mixture of an acid-modified polyolefin and a vinyl chloride-vinyl acetate copolymer; and', 'an adhesive layer which is formed on the anchor layer at a side opposite against the laminated optical structure,, 'wherein the laminated optical decoration includesthe adhesive layer has an adhesive domain containing an acid-modified polyolefin as a major component, and a non-adhesive domain containing a blocking preventing agent as a major component,the blocking preventing agent is one or both of a resin filler and an inorganic filler, anda glass transition point of the blocking preventing agent is greater than 60° C.2. The hot-stamping foil according to claim 1 ,wherein a softening point or a melting point of a major component of the blocking preventing agent ...

DISPLAY AND METHOD OF PRODUCING DISPLAY

A display having high resistance to counterfeiting including a micro concavo-convex structure layer on a predetermined reference surface, the micro concavo-convex structure layer having a plurality of microstructures arranged on the reference surface. Each of the microstructures is formed of a prism structure made of a material that transmits light with a triangular cross-section having a first surface inclined relative to the reference surface in side view, and a second surface having an inclination angle relative to the reference surface such that the inclination angle is larger than an inclination angle of the first surface relative to the reference surface. A color layer as an example of a functional layer is provided on the second surface of all or some of the plurality of microstructures. 1. A display , comprising:a micro concavo-convex structure layer provided on a reference surface, which is at a position at an underside of a substrate layer or at a position at an underside of the micro concavo-convex structure layer, the micro concavo-convex structure layer including a plurality of microstructures arranged on the reference surface, whereineach of the microstructures is formed of a prism structure made of a material having a triangular cross-section, that transmits light, having a first surface inclined relative to the reference surface in side view, and a second surface having an inclination angle relative to the reference surface such that the inclination angle is larger than an inclination angle of the first surface relative to the reference surface, anda functional layer is provided on the second surface of all or some of the plurality of microstructures.2. The display of claim 1 , wherein an optically variable layer that optically varies a wavelength of visible light is provided on the first surface claim 1 , and the optically variable layer is composed of a laminate of a dielectric multilayer and a metal reflective layer.3. The display of claim 2 , ...

Optical element and authentication medium

An optical element including a grating structure, and the grating structure including a first grating structure and a second grating structure. A concavo-convex surface includes a first region in which the first grating structure is located, and a second region in which the second grating structure is located and which is located close to the first region in plan view, as viewed perpendicular to the first surface. An azimuth angle of the first grating structure and an azimuth angle of the second grating structure are equal to each other. The first grating structure and the second grating structure have a grating period in a range of 250 nm or more and 500 nm or less, and a difference between the grating period of the first grating structure and the grating period of the second grating structure is 20 nm or more.

Hot-stamping foil and printing body equipped with laminated optical decoration body

This hot-stamping foil which is transferred, by transfer thermal pressure being applied thereto, to a transfer target, is provided with a carrier which is a base film or a coated base film, a laminated optical decoration body including a laminated optical structure formed on the carrier, and a sinking control layer which comprises a soft resin and a deformation limiting agent and which is formed on the laminated optical structure, and an adhesive layer formed on the sinking control layer, wherein: the adhesive layer comprises a resin component which contains a thermoplastic resin having a glass transition temperature lower than a normal temperature and which defines the thickness of the adhesive layer, and comprises spacer particles which each have a particle diameter greater than the thickness of the adhesive layer and some of which protrude from the resin component; and the spacer particles sink into the sinking control layer after transfer thermal pressure is applied.

Display and method of producing display

A display having high resistance to counterfeiting including a micro concavo-convex structure layer on a predetermined reference surface, the micro concavo-convex structure layer having a plurality of microstructures arranged on the reference surface. Each of the microstructures is formed of a prism structure made of a material that transmits light with a triangular cross-section having a first surface inclined relative to the reference surface in side view, and a second surface having an inclination angle relative to the reference surface such that the inclination angle is larger than an inclination angle of the first surface relative to the reference surface. A color layer as an example of a functional layer is provided on the second surface of all or some of the plurality of microstructures.

Optical element and authentication body

Hot-stamping foil and printing body equipped with laminated optical decoration body

This hot-stamping foil which is transferred, by transfer thermal pressure being applied thereto, to a transfer target, is provided with a carrier which is a base film or a coated base film, a laminated optical decoration body including a laminated optical structure formed on the carrier, and a sinking control layer which comprises a soft resin and a deformation limiting agent and which is formed on the laminated optical structure, and an adhesive layer formed on the sinking control layer, wherein: the adhesive layer comprises a resin component which contains a thermoplastic resin having a glass transition temperature lower than a normal temperature and which defines the thickness of the adhesive layer, and comprises spacer particles which each have a particle diameter greater than the thickness of the adhesive layer and some of which protrude from the resin component; and the spacer particles sink into the sinking control layer after transfer thermal pressure is applied.

Hot-stamping foil

A hot-stamping foil (1) which is transferred to a transfer target by applying a transfer thermal pressure, includes: a carrier (10) that is a base film or a coated base film; and a laminated optical decoration. The laminated optical decoration has a laminated optical structure (20) formed on the carrier (10); a sinking control layer (30) which contains a soft resin and a deformation limiting agent and is formed on the laminated optical structure (20); and an adhesive layer (30) which is formed on the sinking control layer (30). The adhesive layer (30) contains a resin component which contains a thermoplastic resin having a glass transition temperature lower than room temperature and defines the thickness of the adhesive layer (40), and spacer particles which have a particle size larger than the thickness of the adhesive layer (40) and a portion of which protrude from the resin component. The spacer particles sink into the sinking control layer (30) after transfer thermal pressing.

Display body and method for manufacturing display body