An active-energy-ray-curable composition, a cured material of the active-energy-ray-curable composition satisfying a critical load of 5.0 g or more but 25.0 g or less, the critical load being obtained by a continuous loading test method using a variable normal load friction and wear measurement device, the cured material having an average thickness of 10 μm and being formed by coating the active-energy-ray-curable composition on a substrate and by irradiating and curing the active-energy-ray-curable composition with active energy rays having illuminance of 1.5 W/cm.sup.2 and an amount of irradiation of 200 mJ/cm.sup.2.

A UV inkjet printer includes a UV radiation device to irradiate jetted ink on a receiver, wherein the UV radiation device is attached to an inkjet print head module and includes a UV bulb lamp parallel to a slow scan direction; and the radiation device includes a shutter system to create a first irradiation zone on the receiver and to create a second irradiation zone.

A decorative sheet manufacturing method of the present invention is for manufacturing a frosted glass-like decorative sheet using an inkjet printer including a head unit provided with a plurality of nozzles for jetting liquid droplets of an ultraviolet curable ink and an ultraviolet irradiation unit that moves together with the head unit in a main scanning direction of the head unit and irradiates the liquid droplets jetted from the nozzles and landed on a main surface of a transparent base material with ultraviolet rays, the frosted glass-like decorative sheet having the transparent base material and a plurality of dots formed in a print region on the main surface of the transparent base material and formed of a cured product of the ultraviolet curable ink by carrying out inkjet printing having predetermined printing conditions in a multi-pass manner.

The present invention relates to a method for surface-treating a part (2), comprising: a measurement step, during which movement means (3), to which the part (2) is secured, are moved and a set of instantaneous velocities, at the surface (1) of the part (2), is determined by means of a measurement sensor (9), a signal processing step, during which a microcontroller (8) determines, from the data representative of the set of instantaneous velocities, a pulse train signal (S) representative of a set of frequencies of ejection of a substance (13) to be deposited, a deposition step, during which the microcontroller (8) transmits the pulse train signal (S) to the deposition means (6) in order to eject the substance (13) according to the pulse train signal (S).

An ink discharge operation adjustment method includes the following, recording a halftone image in which the ink is discharged to form a predetermined halftone pattern and a solid image in which the ink completely covers a surface of the recording medium; obtaining a first reading result by a reader reading a non-recording region in which an image is not recorded on a recording medium; obtaining a second reading result of the halftone image and the solid image so that a difference of an elapsed time from a start of the curing to the reading is within a predetermined reference difference; obtaining coverage rate information based on the reading results; and performing setting regarding adjustment of a droplet amount of the ink based on the coverage rate information.

A system is disclosed that provides a compact printing system for applying images on the exterior of a clear or semi-transparent 3-dimensional object, such as for example a clear container like a wine bottle. The printing system includes a shuttle system for transporting a grouped parallel series of blank 3D media simultaneously into a printer portion of the system for parallel printing of media. The printer includes a series of printing tunnels that control a novel arrangement of print heads, pinning lamps, and a final cure lamp that minimizes or eliminates the chances for stray UV light to potentially impinge upon and foul inkjet printing heads used to express ink onto the surface of the 3D media. The arrangement allows for a higher degree of throughput of 3D media while avoiding the prior problems of the fouling of printheads during the printing of images on transparent or translucent media.

The present invention relates to a retention apparatus comprising a) a retention body, which delimits an inner region at least on a first side and a further side opposite to the first side, and b) at least one spring element;
wherein the retention body comprises, on the first side, a first receiving portion facing the inner region and, on the further side, a second receiving portion facing the inner region; wherein the retention apparatus is embodied to retain at least one optical module, which has a light input side and an opposing light output side, by means of the first receiving portion, the second receiving portion, and the at least one spring element in a retention state,
in such a way that the at least one optical module in the retention state is retained a. in a first direction extending from the light input side to the light output side by means of an interlock of i. the at least one optical module with the first receiving portion and ii. the at least one optical module with the second receiving portion, and b. in the opposite direction to the first direction by means of a spring force of the at least one spring element directed against the at least one optical module.

Further, the invention relates to a luminaire having the retention apparatus according to the invention; a printing machine having the luminaire according to the invention; a production method using the luminaire according to the invention; and uses of the retention apparatus according to the invention; and of the luminaire.

A printing machine (10) for printing on a substrate having the form of a web (12) is described. It comprises a web entry unit (14) for receiving the web (12) on which a printing process is to be performed and a web exit unit (20) for dispensing the web (12) after the printing process. Furthermore, at least two printing units (26, 28, 30, 32, 34, 36, 38) are provided, wherein each of the printing units (26, 28, 30, 32, 34, 36, 38) is configured for applying an ink of a predetermined color on the web (12). Additionally at least two web paths (A, B) are provided between the web entry unit (14) and the web exit unit (20), each of the web paths (A, B) passing by all of the printing units (26, 28, 30, 32, 34, 36, 38). The web paths (A, B) pass the printing units (26, 28, 30, 32, 34, 36, 38) in a differing sequence. Moreover, a method for changing a color sequence within a printing process is presented. According to this method, the web (12) is arranged along an alternative web path (A, B) passing by the printing units (26, 28, 30, 32, 34, 36, 38) in a differing sequence, whereas a travelling direction of the web remains the same.

Disclosed is a carriage for a direct to garment inkjet printing machine. The machine has a frame having a leading edge, a trailing edge, and a pair of opposed lateral edges. A first row of slots is positioned on the leading edge and a second row of slots is positioned on the trailing edge. The second row of slots is spaced from the first row of slots by a gelling gap. A shelf on the frame supports tanks of white ink and tanks of color ink and a first plurality of tubing connects a tank of white ink positioned on the shelf with a print head in the first row of slots. A second plurality of tubing is for connecting a tank of color ink positioned on the shelf with a print head in the second row of slots. A pair of side heaters attached to opposed lateral edges of the first frame.

An inkjet printer includes a first light applicator disposed in a second scanning direction relative to a recording head. The first light applicator includes a first upstream light source group at a location corresponding to a location of the recording head in a movement direction of a recording medium, and a first downstream light source group on a downstream side in the movement direction of the recording medium relative to the recording head. The inkjet printer turns off the first upstream light source group and turns on the first downstream light source group during movement of a carriage in a first scanning direction and discharge of first ink from the recording head, and turns on the first upstream light source group and the first downstream light source group during movement of the carriage in the second scanning direction after discharge of the first ink.