摘要:
An information carrier comprising a support and a receiving layer is disclosed, together with the method of preparation. The information carrier further comprises (optionally personalized) information applied, preferably by ink jet printing, on the receiver layer, and a new type of watermark, obtained by applying pattern-wise a curable varnish and curing it, and by curing an overall applied curable lacquer. One of the varnish and the lacquer have the ability upon penetration into the receiving layer of changing its transparency, thus creating a transparent watermark on an opaque background, or creating a opaque watermark on an transparent background. The finished information carrier is preferably cut in a set of multiple identification (ID) cards.
摘要:
Passive memory devices comprising at least one passive memory element and a support having a non-conductive surface on the at least one side provided with the passive memory element, the passive memory element comprising a first electrode system, an insulating system and a second electrode system, wherein the first electrode system is a pattern system; wherein the first electrode is insulated from the second electrode system; wherein at least one conductive bridge is present between the first and the second electrode systems; wherein in the absence of the at least one conductive bridge there is no direct electrical contact between the first and the second patterned electrode systems; and wherein the systems and the conductive bridges are printable using conventional printing processes; and a process for providing a passive memory device, the passive memory device comprising at least one passive memory element and a support, the support having on the at least one side provided with a passive memory element either a non-conductive surface or a patternable conductive layer, the passive memory element comprising a first patterned electrode system, a second patterned electrode system, an insulating system between the first patterned electrode system and the second patterned electrode system and at least one conductive bridge between the first patterned electrode system and the second patterned electrode system, and wherein in the absence of the at least one conductive bridge there is no direct electrical contact between the first and the second electrode systems, comprising the steps of: realizing a first electrode pattern on the non-conductive surface of the support or in the patternable conductive layer on the support, providing an insulating pattern on the first electrode pattern, providing a second electrode pattern on the insulating pattern, and providing electrical contact between the first electrode pattern and the second electrode pattern at predesignated points, wherein at least one of the steps is realized by a conventional printing process.
摘要:
A method for manufacturing a flexographic printing master comprising the steps of: (a) providing an ink-receiver surface; (b) jetting a curable jettable fluid on the ink-receiver surface characterized in that the curable jettable fluid comprises at least one photo-initiator, at least one monofunctional monomer, at least 5 wt % of a polyfunctional monomer or oligomer and at least 5 wt % of a plasticizer both based on the total weight of the curable jettable liquid capable of realizing a layer after curing having an elongation at break of at least 5%, a storage modulus E′ smaller than 200 MPa at 30 Hz and a volumetric shrinkage smaller than 10%.
摘要:
A curable jettable liquid for manufacturing a flexographic printing plate comprising at least one photo-initiator, at least one monofunctional monomer, at least 5 wt % of a polyfunctional monomer or oligomer and at least 5 wt % of a plasticizer both based on the total weight of the curable jettable liquid capable of realizing a layer after curing having an elongation at break of at least 5%, a storage modulus E′ smaller than 200 MPa at 30 Hz and a volumetric shrinkage smaller than 10%.
摘要:
An offset printing process comprising the steps of: applying a hydrophilic phase to a printing plate with an oleophilic phase, the hydrophilic phase comprising at least one moiety having at least colouring, pH-indicating, whitening, fluorescent, phosphorescent, X-ray phosphor or conductive properties, and applying the hydrophilic phase applied to the printing plate to a receiving medium thereby realizing a functional pattern of the at least one moiety having at least colouring, pH-indicating, whitening, fluorescent, phosphorescent, X-ray phosphor or conductive properties on the receiving medium, wherein the oleophilic and hydrophilic phases are either applied separately from an ink and a fountain medium or are applied together in the form of a single fluid ink, the single fluid ink consisting of a dispersing phase and a dispersed phase.
摘要:
An method is disclosed for on-site preparation of a relief image comprising the following steps: (a) laminating a material comprising, in the order given, a first peelable support (1), an image recording layer (2) and an adhesive layer (3) onto a UV-sensitive material comprising a support (7), an UV-sensitive layer (6) wherein the adhesive layer (3) is laminated to the UV-sensitive layer (6); (b) image-wise exposing the image recording layer (2) to form a mask; (c) flood exposing the UV-sensitive material through the mask; (d) developing the UV-sensitive material; wherein the peelable support (1) is removed either before step (b), (c) or (d). Steps (a) to (d) are performed within a period of less than 2 months. As a result the extent of monomer diffusion from the UV-sensitive layer to the image recording layer is reduced. Additionally the adhesion between the image recording layer and the UV-sensitive material is optimised. Furthermore, almost all conventional imaging materials, that are normally used for contact exposure, can be applied in this method.
摘要:
Photosensitive printing element for preparing flexographic printing plates via computer-to-plate technology with a support, a photopolymerizable layer and an IR-ablatable layer substantially opaque to actinic radiation which comprises at least one heat-combustible polymeric binder, at least one IR-absorbing material and at least one aliphatic diester, and a process for making a flexographic printing plate using such an element.
摘要:
A heat mode recording element is disclosed comprising a metal recording layer, preferably a bismuth layer, and a layer containing a roughening agent underneath the metal layer. An image is formed by exposure with intense laser light and the presence of the roughening agent reduces or eliminates interference patterns. In an alternative embodiment a roughened support is used instead of a layer containing a roughening agent.
摘要:
According to the present invention there is provided a heat-sensitive material for making lithographic printing plates having on a lithographic support an image-forming layer including a hydrophilic binder, a cross-linking agent for the hydrophilic binder, metal oxide particles with a mean diameter of at least 100 nm and dispersed hydrophobic thermoplastic polymer particles, characterized in that the image-forming layer has a ratio of specific surface (in m2 per g) over mean roughness(in &mgr;m) of more than 0.65 and that the mean pore width is less than 15 nm.
摘要:
A (photo)thermographic material is provided, capable of being used to produce a lithographic printing plate, comprising a support, a hydrophobic thermosensitive layer and a hydrophilic surface adjoining the hydrophobic thermosensitive layer, the thermosensitive layer containing an ingredient A, for example a substantially light-insensitive organic silver salt, which upon negative or positive image-wise heating reacts with at least one other ingredient B, for example a reducing agent therefor, in thermal working relationship therewith, producing a moiety which changes the adhesion between the thermosensitive layer and an adjoining hydrophilic surface to an extent such that negative or positive image-wise separation of the hydrophobic thermosensitive layer from the adjoining hydrophilic surface is enabled.