Device (10) for depositing particles via the liquid route including a first chamber a second chamber (12), a communication hole between the first chamber (11) and the second chamber (12), and a vent which is provided in the second chamber and which places the second chamber and a medium (200) which is external with respect to the device in communication.

A method for coating a tile element includes providing a tile element made of a compressed fibre material having a porosity in the range of 0.92-0.99 and applying a water-based coating material to a side edge surface of the tile element extending between two opposite major surfaces of the tile element. The applying is performed by an applicator head of a continuous vacuum coating apparatus that applies the water-based coating material to the side edge surface of the tile element and removes excess through a vacuum. The water-based coating material is applied at a feeding rate of the tile element relative the applicator head in the range of 25-150 m/min. The water-based coating material forms a coating layer including an outer coating layer and an inner coating layer penetrating the side edge surface. The inner coating layer has penetration depth of at least 100 μm.

A method for coating a tile element includes providing a tile element made of a compressed fibre material having a porosity in the range of 0.92-0.99 and applying a water-based coating material to a side edge surface of the tile element extending between two opposite major surfaces of the tile element. The applying is performed by an applicator head of a continuous vacuum coating apparatus that applies the water-based coating material to the side edge surface of the tile element and removes excess through a vacuum. The water-based coating material is applied at a feeding rate of the tile element relative the applicator head in the range of 25-150 m/min. The water-based coating material forms a coating layer including an outer coating layer and an inner coating layer penetrating the side edge surface. The inner coating layer has penetration depth of at least 100 μm.

A coating of a coating medium, produced by means of a multichannel printhead (5) in a coating region (3) on a two- or three-dimensional surface (2) of an object (1), which is built up from coating points (8) along tracks (7) of one or more coating paths (6), characterized in that the starting coating point (HP) of at least one track (7) is aligned with a starting contour (AK) and an end coating point (EP) of the track (7) is aligned with an end contour (EK).

A coating of a coating medium, produced by means of a multichannel printhead (5) in a coating region (3) on a two- or three-dimensional surface (2) of an object (1), which is built up from coating points (8) along tracks (7) of one or more coating paths (6), characterized in that the starting coating point (HP) of at least one track (7) is aligned with a starting contour (AK) and an end coating point (EP) of the track (7) is aligned with an end contour (EK).

A thin-film coating applicator assembly is disclosed for coating substrates in outdoor applications. The innovative thin-film coating applicator assembly is adapted to apply performance enhancement coatings on installed photovoltaic panels and glass windows in outdoor environments. The coating applicator is adapted to move along a solar panel or glass pane while applicator mechanisms deposit a uniform layer of liquid coating solution to the substrate's surface. The applicator assembly comprises a conveyance means disposed on a frame. Further disclosed are innovative applicator heads that comprise a deformable sponge-like core surrounded by a microporous layer. The structure, when in contact with a substrate surface, deposits a uniform layer of coating solution over a large surface.

A thin-film coating applicator assembly is disclosed for coating substrates in outdoor applications. The innovative thin-film coating applicator assembly is adapted to apply performance enhancement coatings on installed photovoltaic panels and glass windows in outdoor environments. The coating applicator is adapted to move along a solar panel or glass pane while applicator mechanisms deposit a uniform layer of liquid coating solution to the substrate's surface. The applicator assembly comprises a conveyance means disposed on a frame. Further disclosed are innovative applicator heads that comprise a deformable sponge-like core surrounded by a microporous layer. The structure, when in contact with a substrate surface, deposits a uniform layer of coating solution over a large surface.

A method for the continuous production of a mineral foam of which the density in the dry state (d) is from 40 to 600 kg/m.sup.3, includes (i) mixing cement; a water reducing agent; 0.5 to 10%, % by weight with respect to the total weight of cement, of ultrafine particles having a liquid-solid contact angle comprised from 30° to 140°, and of which the D50 is from 10 to 600 nm; water, with a water/cement weight ratio from 0.3 to 2.5; (ii) adding to the mixture from 0.5 to 10% of a pore-forming agent, % by weight with respect to the weight of cement; (iii) applying the mixture obtained at step (ii) on a support; (iv) leaving the mixture to expand on the support.

A method for the continuous production of a mineral foam of which the density in the dry state (d) is from 40 to 600 kg/m.sup.3, includes (i) mixing cement; a water reducing agent; 0.5 to 10%, % by weight with respect to the total weight of cement, of ultrafine particles having a liquid-solid contact angle comprised from 30° to 140°, and of which the D50 is from 10 to 600 nm; water, with a water/cement weight ratio from 0.3 to 2.5; (ii) adding to the mixture from 0.5 to 10% of a pore-forming agent, % by weight with respect to the weight of cement; (iii) applying the mixture obtained at step (ii) on a support; (iv) leaving the mixture to expand on the support.

The invention concerns a method and/or a system for personalizing substrates and/or preparing substrates before gold-plating. In particular, the invention consists of a printing method comprising a step in which the substrate is subjected to inkjet printing followed by a gold-plating step in which the regions of the substrate to be gold-plated are brought into contact with the gold-plating leaf, characterized by an additional step performed prior to the gold-plating step and which consists in the preparation of the substrate.