The present invention relates to a process for making an etched pattern comprising a step of depositing onto a printable metal surface droplets of an ink composition provided by a printing method, wherein the ink composition comprises a first ink vehicle being water, a second ink vehicle being an organic compound and an etchant being an acid or abase according to the Brnsted definition, characterized in that the ink composition has a pH in the range of from (0) to (4) or from (9) to (14). The invention further relates to substrates having a metal surface with an etched pattern, to the use of such substrates in various applications, to articles comprising the inventive substrate and to the use of the inventive process for the production of metal products.

A paint compound is presented. The paint compound is for use with an item. The paint compound is a composition having a predetermined consistency and is biodegradable and water-soluble. The paint compound is environmentally friendly. The paint compound is generally contained within a carrier such as a can, markers, pens, etc. The items that the paint compound may be used on may be any item such as a garment, whiteboard, stickers, decals, etc. Further, the paint compound is released from the item using water.

A paint compound is presented. The paint compound is for use with an item. The paint compound is a composition having a predetermined consistency and is biodegradable and water-soluble. The paint compound is environmentally friendly. The paint compound is generally contained within a carrier such as a can, markers, pens, etc. The items that the paint compound may be used on may be any item such as a garment, whiteboard, stickers, decals, etc. Further, the paint compound is released from the item using water.

According to one embodiment, a silicone-based ink for additive manufacturing includes a vinyl-terminated diphenyl siloxane macromer, a treated silica hydrophobic reinforcing filler, a rheology modifying additive, and a plurality of porogen particles. According to another embodiment, a product of additive manufacturing with a silicone-based ink includes a plurality of continuous filaments comprised of a siloxane matrix, where the continuous filaments are arranged in a geometric pattern, a plurality of inter-filament pores defined by the geometric pattern of the continuous filaments, and a plurality of intra-filament pores having an average diameter in a range of greater than 1 micron to less than 50 microns.

According to one embodiment, a silicone-based ink for additive manufacturing includes a vinyl-terminated diphenyl siloxane macromer, a treated silica hydrophobic reinforcing filler, a rheology modifying additive, and a plurality of porogen particles. According to another embodiment, a product of additive manufacturing with a silicone-based ink includes a plurality of continuous filaments comprised of a siloxane matrix, where the continuous filaments are arranged in a geometric pattern, a plurality of inter-filament pores defined by the geometric pattern of the continuous filaments, and a plurality of intra-filament pores having an average diameter in a range of greater than 1 micron to less than 50 microns.

A device for filling cartridges for a writing implement, the device including at least two separate connectors, a system for metering inks and a system for filling a cartridge, each connector being configured to connect a reservoir containing an ink to the cartridge. The invention also concerns an assembly comprising a device as previously defined and a plurality of ink reservoirs, each ink reservoir being connected to a connector of the device and a method for filling a cartridge using such an assembly.

A device for filling cartridges for a writing implement, the device including at least two separate connectors, a system for metering inks and a system for filling a cartridge, each connector being configured to connect a reservoir containing an ink to the cartridge. The invention also concerns an assembly comprising a device as previously defined and a plurality of ink reservoirs, each ink reservoir being connected to a connector of the device and a method for filling a cartridge using such an assembly.

Ink formulations and associated writing instruments are disclosed herein. In some embodiments, an ink formulation is provided which includes an ink resin or polymer and a biobased solvent. In some embodiments, an ink formulation is provided which includes an ink resin or polymer and a solvent comprising at least one lactate ester.

An aqueous writing, marking and/or drawing liquid is configured for capillary systems, more particularly for applicator implements having a capillary system. The liquid has a viscosity of less than 50 mPas, more particularly less than 20 mPas (Brookfield, 20 C., cone-plate CPE-40). The liquid contains a wetting agent, graphite having a carbon content of between 95 and 99.9 wt %, an ash content of between 0.1 and 5 wt %, and a particle size 20 m at D90, and at least one release agent, more particularly in a concentration of 2 to 15 wt %. The release agent contains barium sulfate and/or an aqueous, highly mobile, nonsedimenting colloidal dispersion of nanoparticulate silicon dioxide particles.

The disclosure relates to a solvent-free photocrosslinkable writing ink advantageously for a pen, including, as a percentage by weight relative to the total weight of the ink: abetween 40 and 75% of a photocrosslinkable acrylate and/or methacrylate oligomer, bbetween 1 and 55%, optionally, of a photocrosslinkable acrylate and/or methacrylate monomer, cbetween 0.5 and 6% of a photoinitiator, dbetween 1 and 10% of a dye, advantageously a basic dye, and ebetween 0 and 10% of an additive. The present disclosure further relates to a method for securing a writing medium using the ink, the crosslinked ink obtained by crosslinking the ink and a pen for photocrosslinkable ink including the ink.