摘要:
A method for finishing a manufactured article by powder painting, comprising the step of applying, on a surface to be decorated of the manufactured article, one decorative layer obtained by means of the transfer by controlled migration of powder particles which originate from a graphic matrix arranged in front of the surface to be decorated and designed to adhere thereto; the transfer and adhesion steps being provided by a first electostatic field which comprises lines of force incident at right angles to the surface to be decorated, the manufactured article acting fully or partly as reference electrode for the first electrostatic field, so as to produce a condition of solid contact between the electrode and the surface to be decorated.
摘要:
An apparatus for applying electrostatic powders on manufactured articles, comprising at least one dispensing device adapted to dispense gas solid particles mixture having an electrostatic charge, and connected to at least one duct arranged proximate to the surface to be treated and defining a channel for conveying the mixture. The duct has laterally, along its longitudinal extension, at least one passage opening directed toward the surface to be treated. A partition is arranged with at least one of its portions substantially at the passage opening and is permeable to the powder particles. The passage opening and the partition are crossed by force lines of a first electrical field adapted to cause transfer of the powder particles transiting along the conveyance channel on the surface to be treated through the passage opening and the partition.
摘要:
A sheet-like transfer medium for transferring images with sublimating inks, comprising a backing layer and an active layer; the active layer faces an object to be treated and is adapted to form a plurality of air drainage channels in order to allow to maintain, in an interspace between the sheet-like medium and the object to be treated, a substantially uniform pressure which is lower than a pressure that acts on an outer side of the sheet-like medium; at least one layer comprising sublimating inks is interposed between the backing layer and the active layer; the active layer is also at least partially permeable to the gaseous phase of the sublimating inks.
摘要:
A method for manufacturing a medium in sheet form that can be used for the sublimation transfer of an ink onto an imprintable medium; the medium in sheet form comprises at least one supporting layer, at least one adhesive coating and a plurality of granular or elongated elements designed to be applied to the adhesive coating; the method comprising the steps of preparing the granular or elongated elements so as to render them sensitive to the action of an electromagnetic field and applying the granular or elongated elements to the adhesive coating with the interposition of the electromagnetic field having lines of force f that are substantially perpendicular to the supporting layer, so as to arrange a monolayer of granular or elongated elements according to a predefined distribution.