公开(公告)号：US20150146280A1

公开(公告)日：2015-05-28

申请号：US14399325

申请日：2013-04-30

Applicant: SICPA HOLDING SA

Inventor： Pierre Degott ,  Mathieu Schmid ,  Claude Alain Despland ,  Cédric Amerasinghe

IPC: G02B5/08 ,  B42D25/40 ,  B42D25/30 ,  G02F1/00 ,  G02F1/21

CPC classification number: G02F1/09 ,  B05D3/20 ,  B05D5/06 ,  B05D5/065 ,  B41M3/14 ,  B42D25/00 ,  B42D25/20 ,  B42D25/24 ,  B42D25/29 ,  B42D25/30 ,  B42D25/369 ,  B42D25/378 ,  B42D25/40 ,  B42D2033/16 ,  B42D2033/18 ,  B42D2033/20 ,  B42D2035/20 ,  C09D11/037 ,  G02B5/0257 ,  G02B5/08 ,  G02F1/0036 ,  G02F1/21 ,  G02F2001/094 ,  G02F2001/213

Abstract: The disclosure relates to the field of graphical elements and is directed to an optical effect layer (OEL), a device and a method for producing same. The disclosure provides an optical effect that is easy to detect as such and exhibits a viewing-angle dependent apparent motion of image features over an extended length if the viewing angle with respect to the OEL changes. An OEL includes a binder material being at least partially transparent and a plurality of particles dispersed within the layer. Each particle has a non-isotropic reflectivity and may be magnetic or magnetizable. The orientation of the particles forms an orientation pattern extending over a length within an extended surface of the OEL, such that the local average of an angle between (i) a straight line along an observed longest dimension within the corresponding cross-section shape, and (ii) said first direction x varies according to a function (θ) of a position (P) along said first direction.

Abstract translation: 本公开涉及图形元素的领域，并且涉及光学效应层（OEL），装置及其制造方法。 本公开提供了如此容易检测的光学效果，并且如果相对于OEL的视角改变，则呈现出视角依赖的视觉特征在延长长度上的视在运动。 OEL包括至少部分透明的粘合剂材料和分散在该层内的多个颗粒。 每个颗粒具有非各向同性的反射率，并且可以是磁性的或可磁化的。 颗粒的取向形成在OEL的延伸表面内的长度上延伸的取向图案，使得（i）在相应横截面形状内沿着观察到的最长尺寸的直线之间的角度的局部平均值，以及 （ii）所述第一方向x根据沿着所述第一方向的位置（P）的函数（“θ”）而变化。

公开(公告)号：US09849713B2

公开(公告)日：2017-12-26

申请号：US14759836

申请日：2013-12-20

Applicant: SICPA HOLDING SA

Inventor： Mathieu Schmid ,  Evgeny Loginov ,  Claude Alain Despland ,  Pierre Degott

IPC: H01F7/00 ,  H01F41/16 ,  B42D25/30 ,  H01F7/02 ,  B42D25/369 ,  B05D3/00 ,  B41M3/14 ,  B42D25/29

CPC classification number: B42D25/30 ,  B05D3/20 ,  B05D3/207 ,  B41M3/148 ,  B42D25/29 ,  B42D25/369 ,  B42D2033/16 ,  B42D2033/20 ,  B42D2035/20 ,  H01F7/0273 ,  H01F7/0278 ,  H01F41/16 ,  Y10T428/24273

Abstract: The invention relates to the field of the protection of security documents such as for example banknotes and identity documents against counterfeit and illegal reproduction. In particular, the invention relates to optical effect layers (OEL) showing a viewing-angle dependent optical effect, devices and processes for producing said OEL and items carrying said OEL, as well as uses of said optical effect layers as an anti-counterfeit means on documents. The OEL comprises a plurality of non-spherical magnetic or magnetizable particles, which are dispersed in a coating composition comprising a binder material, the OEL comprising two or more loop-shaped areas, being nested around a common central area that is surrounded by the innermost loop-shaped area, wherein, in each of the loop-shaped areas, at least a part of the plurality of non-spherical magnetic or magnetizable particles are oriented such that, in a cross-section perpendicular to the OEL layer and extending from the center of the central area to the outer boundary of the outermost loop-shaped area, the longest axis of the particles in each of the cross-sectional areas of the looped-shaped areas follow a tangent of either a negatively curved or a positively curved part of hypothetical ellipses or circles.

公开(公告)号：US09724956B2

公开(公告)日：2017-08-08

申请号：US14759831

申请日：2014-01-07

Applicant: SICPA HOLDING SA

Inventor： Mathieu Schmid ,  Evgeny Loginov ,  Claude Alain Despland ,  Pierre Degott

IPC: H01F41/16 ,  B42D25/369 ,  G07D7/00 ,  B44F1/10 ,  B05D3/00 ,  B41M3/14 ,  B42D25/29 ,  H01F7/02

CPC classification number: B42D25/369 ,  B05D3/20 ,  B05D3/207 ,  B41M3/148 ,  B42D25/29 ,  B42D2033/16 ,  B42D2033/20 ,  B42D2035/20 ,  B44F1/10 ,  G07D7/003 ,  H01F7/0273 ,  H01F41/16

Abstract: The invention relates to the field of the protection of security documents such as for example banknotes and identity documents against counterfeit and illegal reproduction. In particular, the invention relates to optical effect layers (OEL) showing a viewing-angle dependent optical effect, devices and processes for producing said OEL and items carrying said OEL, as well as uses of said optical effect layers as an anti-counterfeit means on documents. The OEL comprises a plurality of non-spherical magnetic or magnetizable particles, which are dispersed in a coating composition comprising a binder material, wherein in at least a loop-shaped area of the OEL at least a part of the plurality of non-spherical magnetic or magnetizable particles are oriented such that their longest axis is substantially parallel to the plane of the OEL, and wherein, in a cross-section perpendicular to the OEL and extending from the center of the central area, the longest axis of the oriented particles present in the loop-shaped area forming the impression of the loop-shaped body follow a tangent of either a negatively curved or a positively curved part of a hypothetical ellipse or circle.

公开(公告)号：US10682877B2

公开(公告)日：2020-06-16

申请号：US15703063

申请日：2017-09-13

Applicant: SICPA HOLDING SA

Inventor： Mathieu Schmid ,  Evgeny Loginov ,  Claude Alain Despland ,  Pierre Degott

IPC: B42D25/30 ,  H01F7/02 ,  H01F41/16 ,  B42D25/369 ,  B05D3/00 ,  B41M3/14 ,  B42D25/29

Abstract: Magnetic field-generating device including a plurality of elements selected from magnets and pole pieces and including at least one magnet. Plurality of elements are (i) located below supporting surface or space configured to receive a substrate acting as supporting surface or (ii) forming a supporting surface, and are configured to provide a magnetic field with magnetic field lines running substantially parallel to supporting surface or space in two or more areas above supporting surface or space. Two or more areas form nested loop-shaped areas surrounding a central area; and/or the plurality of elements include a plurality of magnets, which are rotatable around an axis of rotation such that areas with field lines running substantially parallel to supporting surface or space combine upon rotation around axis of rotation, thereby forming, upon rotation around axis of rotation, a plurality of nested loop-shaped areas surrounding one central area.

公开(公告)号：US09834028B2

公开(公告)日：2017-12-05

申请号：US14399325

申请日：2013-04-30

Applicant: SICPA HOLDING SA

Inventor： Pierre Degott ,  Mathieu Schmid ,  Claude Alain Despland ,  Cedric Amerasinghe

IPC: G02F1/00 ,  B32B5/16 ,  B42D25/20 ,  B05D5/06 ,  B05D3/00 ,  G02B5/02 ,  B42D25/29 ,  B42D25/00 ,  C09D11/037 ,  B42D25/30 ,  B42D25/40 ,  G02B5/08 ,  G02F1/21

CPC classification number: G02F1/09 ,  B05D3/20 ,  B05D5/06 ,  B05D5/065 ,  B41M3/14 ,  B42D25/00 ,  B42D25/20 ,  B42D25/24 ,  B42D25/29 ,  B42D25/30 ,  B42D25/369 ,  B42D25/378 ,  B42D25/40 ,  B42D2033/16 ,  B42D2033/18 ,  B42D2033/20 ,  B42D2035/20 ,  C09D11/037 ,  G02B5/0257 ,  G02B5/08 ,  G02F1/0036 ,  G02F1/21 ,  G02F2001/094 ,  G02F2001/213

Abstract: The disclosure relates to the field of graphical elements and is directed to an optical effect layer (OEL), a device and a method for producing same. The disclosure provides an optical effect that is easy to detect as such and exhibits a viewing-angle dependent apparent motion of image features over an extended length if the viewing angle with respect to the OEL changes. An OEL includes a binder material being at least partially transparent and a plurality of particles dispersed within the layer. Each particle has a non-isotropic reflectivity and may be magnetic or magnetizable. The orientation of the particles forms an orientation pattern extending over a length within an extended surface of the OEL, such that the local average of an angle between (i) a straight line along an observed longest dimension within the corresponding cross-section shape, and (ii) said first direction x varies according to a function (θ) of a position (P) along said first direction.

公开(公告)号：US09933640B2

公开(公告)日：2018-04-03

申请号：US15379008

申请日：2016-12-14

Applicant: SICPA HOLDING SA

Inventor： Pierre Degott ,  Mathieu Schmid ,  Claude Alain Despland ,  Cedric Amerasinghe

IPC: G02F1/00 ,  B32B5/16 ,  G02F1/09 ,  G02B5/02 ,  B41M3/14 ,  B05D3/00 ,  B05D5/06 ,  B42D25/29 ,  B42D25/24 ,  B42D25/378 ,  B42D25/369 ,  B42D25/40

CPC classification number: G02F1/09 ,  B05D3/20 ,  B05D5/06 ,  B05D5/065 ,  B41M3/14 ,  B42D25/00 ,  B42D25/20 ,  B42D25/24 ,  B42D25/29 ,  B42D25/30 ,  B42D25/369 ,  B42D25/378 ,  B42D25/40 ,  B42D2033/16 ,  B42D2033/18 ,  B42D2033/20 ,  B42D2035/20 ,  C09D11/037 ,  G02B5/0257 ,  G02B5/08 ,  G02F1/0036 ,  G02F1/21 ,  G02F2001/094 ,  G02F2001/213

Abstract: Disclosure relates to the field of graphical elements and is directed to a device for producing an optical effect layer (OEL). Disclosure provides an optical effect that is easy to detect as such and exhibits a viewing-angle dependent apparent motion of image features over an extended length if the viewing angle with respect to the OEL changes. OEL includes a binder material being at least partially transparent and a plurality of particles dispersed within the layer. Each particle has a non-isotropic reflectivity and may be magnetic or magnetizable. Orientation of the particles forms an orientation pattern extending over a length within an extended surface of the OEL, such that the local average of an angle between (i) a straight line along an observed longest dimension within the corresponding cross-section shape, and (ii) said first direction x varies according to a function (θ) of a position (P) along said first direction.

公开(公告)号：US09659696B2

公开(公告)日：2017-05-23

申请号：US14898007

申请日：2014-06-13

Applicant: SICPA HOLDING SA

Inventor： Evgeny Loginov ,  Mathieu Schmid ,  Claude Alain Despland ,  Pierre Degott

IPC: B05D5/06 ,  H01F7/02 ,  B05D3/00 ,  B42D15/00 ,  H01F1/06

CPC classification number: H01F7/0278 ,  B05D3/20 ,  B05D3/207 ,  B05D5/06 ,  B05D5/065 ,  B42D15/00 ,  B42D25/369 ,  B42D25/41 ,  H01F1/06 ,  H01F7/0247

Abstract: The invention relates to the field of the protection of security documents such as for example banknotes and identity documents against counterfeit and illegal reproduction. In particular, the invention relates to magnetic-field-generating devices which produce positively curved magnetic field lines in a concave fashion. The invention also relates to the use of these magnetic-field-generating devices for producing optical effect layers OEL which exhibit the optical impression of a positive rolling bar effect and to processes using these magnetic-field-generating devices, e.g. in the field of document security.