Abstract: A method for producing a 3D item by means of fused deposition modelling, the method comprising a 3D printing stage, wherein the 3D printing stage comprises layer-wise depositing 3D printable material (201) to provide the 3D item (1) comprising 3D printed material (202), wherein: (a) the 3D printable material (201) comprises 3D printable core material (1351) and 3D printable shell material (1361); the 3D item (1) comprises a core-shell layer (1322) of the 3D printed material (202), wherein the core-shell layer (1322) comprises (i) a core (330) comprising 3D printed core material (1352) and (ii) a shell (340) comprising 3D printed shell material (1362); wherein the shell (340) at least partly encloses the core (330); (b) the 3D printable core material (1351) is reflective or absorbing for a wavelength (21) in the visible wavelength range; and (c) the 3D printable shell material (1361) comprises shell particles (430) which are transmissive for the wavelength (21) and wherein at least part of a total number of sh

Abstract: The invention provides a method for producing a 3D item by means of fused deposition modelling, the method comprising a 3D printing stage comprising layer-wise depositing 3D printable material, to provide the 3D item comprising 3D printed material, wherein the 3D item comprises layers of 3D printed material, wherein the 3D printable material comprises thermoplastic material, wherein during at least part of the 3D printing stage the 3D printable material further comprises porous inorganic particles embedded in the thermoplastic material, wherein the porosity of the inorganic particles is in the range 5-60 vol. %, and wherein the inorganic particles (410) have an open porosity. The invention also comprises the product resulting from above method.

Abstract: Method for manufacturing a 3D item (1) by means of fused deposition modeling, the method comprising layer-wise depositing (during a printing stage) 3D printable material (201), to provide the 3D item (1) comprising 3D printed material (202), wherein the 3D printable material (201) comprises a continuous phase of a thermoplastic polymeric material and particles (410) embedded therein, wherein the particles (410) comprise a crosslinked polymeric material and wherein the particles (410) have a first dimension (LI) selected from the range of 0.2-100 micron. The 3D printable material (202) and the particles (410) comprise a light transmissive material, and the light transmissive material of the particles (410) has an index of refraction selected from the range of 1.2-1.

Abstract: The invention provides a method for producing a 3D item (1) by means of fused deposition modelling, the method comprising a 3D printing stage comprising layer- wise depositing an extrudate (321) comprising 3D printable material (201), to provide the 3D item (1) comprising 3D printed material (202), wherein the 3D item (1) comprises layers (322) of 3D printed material (202), wherein the method further comprises controlling a first temperature T1 of the 3D printable material (201) within a first temperature range, wherein the 3D printable material (201) comprises a thermoplastic host material (401) and a dopant material (410) in the range of 1-20 vol %, the dopant material (410) comprising polymeric flake-like particles having a metal coating, wherein the 3D printable material (201) has an optical property that irreversibly changes from a low-temperature optical property to a high-temperature optical property when increasing a temperature of the 3D printable material (201) over a change temperature Tc, the opti

Abstract: A method for 3D printing a 3D item (10), the method comprising (i) providing 3D printable material (201) comprising particles (410) embedded in the 3D printable material (201), wherein the particles (410) have a longest dimension length (L1), a shortest dimension length (L2), and an aspect ratio AR defined as the ratio of the longest dimension length (L1) and the shortest dimension length (L2), and (ii) depositing during a printing stage 3D printable material (201) to provide the 3D item (10) to provide layers (230) of the 3D printed material (202) with a layer height (H), wherein: (i) 1<AR<4 and 1<H/L2<100.

Abstract: The invention provides a method for 3D printing a 3D item (1), the method comprising (i) providing 3D printable material (201) comprising particles (410) embedded in the 3D printable material (201), wherein the particles (410) are reflective for at least part of the visible light, wherein the particles (410) have a particle length (L1), a particle height (L2), and an aspect ratio AR defined as the ratio of the particle length (L1) and the particle height (L2), wherein AR>5, and (ii) layer-wise depositing the 3D printable material (201) to provide the 3D item (10) with layers (322) of the 3D printed material (202) with a layer height (H) and a layer width (W), and wherein the 3D printable material (201) has a particle concentration C selected from the range of 0.001-30 vol. % of the particles (410) relative to the total volume of the 3D printable material (201).

Abstract: Method for manufacturing a 3D item (1) by means of fused deposition modeling, the method comprising layer-wise depositing (during a printing stage) 3D printable material (201), to provide the 3D item (1) comprising 3D printed material (202), wherein the 3D printable material (201) comprises a continuous phase of a thermoplastic polymeric material and particles (410) embedded therein, wherein the particles (410) comprise a crosslinked polymeric material and wherein the particles (410) have a first dimension (LI) selected from the range of 0.2-100 micron. The 3D printable material (202) and the particles (410) comprise a light transmissive material, and the light transmissive material of the particles (410) has an index of refraction selected from the range of 1.2-1.

Abstract: The application relates to a method for 3D printing a 3D item (10) on a substrate (1550), the method comprising providing a filament (320) of 3D printable material (201) and printing during a printing stage said 3D printable material (201) to provide the 3D item (10) comprising 3D printed material (202), wherein the 3D printable material (201) comprises light transmissive polymeric material and wherein the polymeric material has a glass transition temperature, wherein the 3D printable material during at least part of the printing stage further comprises plate-like particles (410), wherein the plate-like particles (410) have a metallic appearance, wherein the plate-like particles (410) have a longest dimension length (L1) selected from the range of 50 ?m-2 mm and a largest thickness (L2) selected from the range of 0.05-20 ?m, and wherein the method further comprises subjecting the 3D printed material (202) on the substrate (1550) to a temperature of at least the glass transition temperature.

Abstract: The invention provides a method for 3D printing a 3D item (10), the method comprising providing a filament (320) of 3D printable material (201) and printing during a printing stage said 3D printable material (201), to provide said 3D item (10) comprising 3D printed material (202), wherein the 3D printable material (201) further comprises particles (410), wherein the particles (410) comprise one or more of glass and mica, wherein the particles (410) have a coating (412), wherein the coating comprises one or more of a metal coating and a metal oxide coating, and wherein the particles (410) have a longest dimension (A1) having an longest dimension length (L1) selected from the range of 10 ?m-2 mm, and wherein the particles have an aspect ratio of at least 10.

Abstract: A method for 3D printing a 3D item (10), the method comprising (i) providing 3D printable material (201) comprising particles (410) embedded in the 3D printable material (201), wherein the particles (410) have a longest dimension length L1, a shortest dimension length L2, and an aspect ratio AR defined as the ratio of the longest dimension length L1 and the shortest dimension length L2, and (ii) depositing during a printing stage 3D printable material (201) to provide the 3D item (10) to provide layers (230) of the 3D printed material (202) with a layer height H, wherein AR>4 and H/L1<1.

Abstract: The invention provides a luminescent material (10) based on quantum dots (100), wherein the quantum dots (100) have inorganic capping agents (110), wherein the luminescent material (10) comprises particles (12) having an inorganic salt matrix (14) hosting the quantum dots (100) with inorganic capping agents (110), wherein the luminescent quantum dots (100) have an outer layer (105). The invention also provides a method for the production of such luminescent material (10). The new luminescent material can be used and processed as conventional particulate luminescent material.

Abstract: The invention provides a luminescent material (10) comprising quantum dots (100), wherein the luminescent material (10) further comprises a capping agent (110) coordinating to the quantum dots (10), wherein the capping agent comprises MxOy(OH)zn, wherein M is selected from the group consisting of B, Al, P, S, V, Zn, Ga, Ge, As, Se, Nb, Mo, Cd, In, Sn, Sb, Te, Ta and W, wherein x?1, y+z?1, and wherein n indicates a positive or negative charge of the capping agent.

Abstract: Apparatus and methods are disclosed herein for capturing targeted gas in air. An air purification apparatus (110) is presented comprising: a targeted gas capture chamber (120) with an air inlet (118) and an air-permeable wall (122) configured to at least partially capture a targeted gas from air that passes into the air inlet and through the air-permeable wall; and a targeted gas removal unit (126) that is periodically positionable adjacent to the air-permeable wall of the targeted gas capture chamber to at least partially remove, e.g., via adsorption, the targeted gas captured by the air-permeable wall.

Abstract: A light emitting device (1) comprising at least one light source (2) adapted for, in operation, emitting first light (13) with a first spectral distribution, a light guide (4) made of a luminescent material and comprising a light input surface (41) and a light exit surface (42) extending in an angle different from zero to one another, the light guide further comprising a first further surface (46) extending parallel to and arranged opposite to the light exit surface, wherein the light guide is adapted for receiving the first light (13) with the first spectral distribution at the light input surface, converting at least a part of the first light with the first spectral distribution to second light (14) with a second spectral distribution, guiding the second light with the second spectral distribution to the light exit surface and coupling the second light with the second spectral distribution out of the light exit surface.

Abstract: The invention provides a luminescent material (10) comprising quantum dots (100), wherein the luminescent material (10) further comprises a capping agent (110) coordinating to the quantum dots (10), wherein the capping agent comprises MxOy(OH)zn, wherein M is selected from the group consisting of B, Al, P, S, V, Zn, Ga, Ge, As, Se, Nb, Mo, Cd, In, Sn, Sb, Te, Ta and W, wherein x?1, y+z?1, and wherein n indicates a positive or negative charge of the capping agent.

Abstract: The invention provides a luminescent material (10) based on quantum dots (100), wherein the quantum dots (100) have inorganic capping agents (110), wherein the luminescent material (10) comprises particles (12) having an inorganic salt matrix (14) hosting the quantum dots (100) with inorganic capping agents (110), wherein the luminescent quantum dots (100) have an outer layer (105). The invention also provides a method for the production of such luminescent material (10). The new luminescent material can be used and processed as conventional particulate luminescent material.

Abstract: A light emitting device (1) comprising at least one light source (2) adapted for, in operation, emitting first light (13) with a first spectral distribution, a light guide (4) made of a luminescent material and comprising a light input surface (41) and a light exit surface (42) extending in an angle different from zero to one another, the light guide further comprising a first further surface (46) extending parallel to and arranged opposite to the light exit surface, wherein the light guide is adapted for receiving the first light (13) with the first spectral distribution at the light input surface, converting at least a part of the first light with the first spectral distribution to second light (14) with a second spectral distribution, guiding the second light with the second spectral distribution to the light exit surface and coupling the second light with the second spectral distribution out of the light exit surface.