摘要:
A method of forming a structure, including forming a photo-thermal conversion material on a medium having an expanding layer by printing, before the expanding layer is expanded, wherein the expanding layer is expanded when heated, forming at least one of a white material and a coloring material on the photo-thermal conversion material formed on the medium, by printing, and expanding the expanding layer by heating.
摘要:
The present invention makes it possible to print embossed structures 111, 121 et seq. such as particularly arrays of optical lenses which may be contiguous.It consists of printing a first surface (S1) which may also equally well be the structures 111, 121 et seq. as the assembly 2 of separation surfaces between these structures, using an ink (M1) and of lowering the surface tension of this ink M1 so that it becomes lower than that of the printing medium, before printing the next layer which is then strongly repelled by the surface S1. This method makes it possible using very inexpensive known printing techniques to produce embossed structures forming substantial protuberances relative to the basis thereof, this being a major advantage in particular for lens arrays.
摘要:
A method for forming three dimensional objects is disclosed. The method includes printing building material, layer by layer, to form a three dimensional object on a printing tray by moving a printing block that comprises a printing head, at least two curing sources and a leveler in forward and reverse passages. The printing is done by moving the printing block in a forward passage when the distance between the printing block and the printing tray is such that the leveler does not touch a layer being built, adjusting a height position of the printing tray relative to the printing block prior to printing a reverse passage and moving the printing block in the reverse passage, wherein during the reserve passage the leveler touches and levels the layer being built.
摘要:
Ultraviolet light-curable deposits are printed onto a substrate in a predetermined pattern to make tactile marks (e.g. Braille-like resin dots) for use by people with impaired vision to, for example, recognize the denominations of banknotes. The deposit demonstrates high adhesion due to: (1) presence of 20-80% (wt.) of a low viscosity acrylate component to provide a substrate-penetrating property; and, (2) 2-30% (wt.) of an adhesion-promoting acid acrylate. The deposit material further includes 1-30% (wt.) of urethane acrylate, 1-30% by weight of reactive diluent, photoinitiator and 1-10% (wt.) of rheological adsorbing additive. Optimally, the adhesion promoter is added after the other components have been mixed with the rheological additive. The printing step may be followed by heating before the curing step to increase penetration of the ink into the substrate. The deposit may comprise a taggant for use as a security feature.
摘要:
A method for producing a three dimensional (3D) image formation object as a specific product using a thermally expandable sheet on which an intended 3D image is formed is described. The method sets first and second regions with a first processing line as a borderline on the first side, forms a first image for obtaining a 3D image in the first region, prints information on the second region, processes the 3D image formation sheet to fold the sheet along the first processing line, and adheres a third region which is on a second side of the 3D image formation sheet and corresponding to the second region and a fourth region which is on the second side of and corresponding to the fourth region to each other. This completes the 3D image formation object in which the first and second regions have a front/back relationship.
摘要:
A method for embossing products with a rotary embossing device includes controlling the rotation of at least one embossing roller as a function of marks that are present on the products and are detected by sensors. A folder gluer having a rotary embossing device is also provided.
摘要:
The present invention makes it possible to print embossed structures 111, 121 et seq. such as particularly arrays of optical lenses which may be contiguous.It consists of printing a first surface (S1) which may also equally well be the structures 111, 121 et seq. as the assembly 2 of separation surfaces between these structures, using an ink (M1) and of lowering the surface tension of this ink M1 so that it becomes lower than that of the printing medium, before printing the next layer which is then strongly repelled by the surface S1. This method makes it possible using very inexpensive known printing techniques to produce embossed structures forming substantial protuberances relative to the basis thereof, this being a major advantage in particular for lens arrays.
摘要:
A 3D-inkjet printing method includes the steps of a) providing two or more fluids having a different composition to an inkjet printer; b) mixing the two or more fluids in a controlled amount; c) jetting the mixture of the two or more fluids with the inkjet printer onto a support; d) at least partially curing the jetted mixture by actinic radiation or electron beam; and e) repeating steps b) to d) in order to build a 3D-relief on the support. The method is capable of printing 3D-objects with inkjet fluid sets in an inkjet printer.
摘要:
An apparatus to help control the quality of printed three-dimensional objects is provided. The apparatus may include a printing head to print a three-dimensional object and a printing tray having defined surface characteristics serving to control adherence of the object being printed to the printing tray and/or prevent deformations in the printed object.
摘要:
The device includes optical elements such as microlenses or optical fibers that are printed with liquid ink, by known scanning printing techniques such as for example flexography. Each optical element (11, 12, 13, 14) has a transparent core (111, 121, 131, 141) printed by a first ink layer, that is sufficiently distant from the closest cores so as not to amalgamate with them by coalescence, before being hardened. This core (111, 121, 131, 141) is then covered with one or several so-called additional layers (112, 113, 122, 123, 132, 133, 142, 143) which can be flat tint layers in order to finalize the shape of the optical element in question. The section of the optical elements is determined by the difference in surface tension between said additional layers (112, 113, 122, 123, 132, 133, 142, 143) and the printing substrate (10).