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1. 发明申请

US20200086600A1 METHOD AND EMBOSSING STRUCTURE FOR MAXIMIZING PRESSURE BUILDUP AT ROTATIONAL EMBOSSING OF FOILS 审中-公开
公开(公告)号：US20200086600A1
公开(公告)日：2020-03-19
申请号：US16470624
申请日：2017-12-19
申请人： BOEGLI-GRAVURES SA
发明人： Charles BOEGLI , Werner STEFFEN
IPC分类号： B31F1/07
摘要： An embossing method allowing to emboss a material on both sides comprises feeding the foil material into a roll nip between a pair of a first roll and a second roll, providing the first roll and the second roll each with a plurality of positive projections and a plurality of negative projections of identical shaped polyhedral structures, a first subset of the plurality of positive projections being disposed with a first periodicity on a first grid in axial direction and a second periodicity on the first grid in circumferential direction on the first roll, and a second subset of the plurality of negative projections being disposed with the first periodicity in axial direction and the second periodicity in circumferential direction on the first grid intertwined with the positive projections, in axial and circumferential directions respectively, and projections complementary to the first grid, on the second roll, each of the positive projections and the negative projections on the first roll during operation of the rolls and in the roll nip being surrounded on all sides by positive projections and negative projections on the second roll, the positive projections of the first roll together with alternating corresponding negative projections on the second roll forming during the operation of the rolls and in the roll nip, a first straight line substantially parallel to the axial direction, and the negative projections of the first roll together with alternating corresponding positive projections on the second roll forming during the operation of the rolls and in the roll nip, a second straight line substantially parallel to the axial direction. The positive projections and the negative projections are such that in the axial direction on the first roll each positive projection shares a lateral base border with at least one negative projection adjacent to the positive projection, and during the operation of the rolls and in the roll nip, all lateral oblique surfaces of the positive and negative projections of the first roll are just above the surface in full faced view with the corresponding lateral oblique surfaces of the respective negative and positive projections of the second roll, thereby enabling a homogeneous distribution of pressure to the material.

2. 发明申请

US20210276298A1 PAPER JOINT WITHOUT DISCONTINUITY FOR TUBE SHAPED PAPER WRAPS CLOSED BY MEANS OF EMBOSSED PAPER AND RE-SEALABLE INNERLINER SEAL BY MEANS OF STRUCTURED INNERLINER 有权
公开(公告)号：US20210276298A1
公开(公告)日：2021-09-09
申请号：US16338856
申请日：2017-10-02
申请人： BOEGLI-GRAVURES SA
发明人： Charles BOEGLI , Alain DROZ , Werner STEFFEN
IPC分类号： B31F1/07 , A24C5/00 , B65D85/10 , B31F5/02 , B31B50/62
摘要： A set of thin foil surfaces configured to achieve a joint among the foil surfaces, the joint being arranged to be without discontinuity, comprising at least a first portion of surface dedicated to achieve the joint; pixelized type embossings on the first portion of surface; and at least a second portion of surface dedicated to achieve the joint. The second portion of surface is shaped to correspond to the first portion of surface for making the joint between the first portion of surface and the second portion of surface through contact.

3. 发明申请

US20200324505A1 METHOD AND DEVICE FOR EMBOSSING PLANAR MATERIAL 审中-公开
公开(公告)号：US20200324505A1
公开(公告)日：2020-10-15
申请号：US16305467
申请日：2017-05-04
申请人： BOEGLI-GRAVURES SA
发明人： Charles BOEGLI , Werner STEFFEN
IPC分类号： B31F1/07 , B44B5/00 , B44B5/02 , B31B50/88
摘要： A method for embossing a first grating in a planar material, by means of an embossing body and a counter embossing body, having each a hard surface, the first grating to be embossed comprising alternating substantially parallel and straight ridges and recesses, whereby the top surfaces of the ridges are intended to weaken a direct angular reflection of light by diffuse omnidirectional reflection, thereby producing a visible contrast between the ridges and the recesses. The method comprises on the embossing body providing a first plurality of obtuse pyramids intended to emboss the recesses of the first grating by exerting pressure on a first side of the planar material, the first plurality of obtuse pyramids forming first intermitted lines (row1, row2) corresponding to the intended recesses, and the pyramids in each subset corresponding to one of the first intermitted lines, being separated from each other by a determined distance that creates a gap in the line in such a manner that each gap from a line of pyramids may be connected to a corresponding gap from an adjacent line of pyramids by an imaginary line perpendicular to both of the adjacent lines; and roughening portions of the hard surface of the embossing body, the portions being located between adjacent lines of pyramids and intersecting at least one of the imaginary lines that connect one gap from one line to the corresponding gap from the adjacent line. On the counter embossing body, the method comprises providing a second plurality of obtuse pyramids intended to emboss the ridges of the first grating by exerting pressure on a second side of the planar material opposite to the first side, during embossing the obtuse summits of the pyramid pressing the planar material against a roughened portion of the hard surface of the embossing body, thereby satirizing the top surfaces of the ridges on the first side.

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