Production of polymer particles and rough coatings by means of inkjet printing
A technology of polymer particles and rough coating, applied in the field of particles or polymer particles to manufacture rough polymer coatings, which can solve the problems of destroying inkjet heads, blocking nozzles, etc.
Active Publication Date: 2016-06-29
ACTEGA SCHMID RHYNER AG
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- Abstract
- Description
- Claims
- Application Information
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Problems solved by technology
Particles that are too large can clog the nozzles and thus possibly damage the inkjet head
Method used
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[0102] figure 1 A schematic diagram showing one embodiment of the manufacturing method according to the invention, in which partially cured particles 7 are deposited on a substrate 5 as a rough coating 8 . To this end, a substrate 5 is first prepared. The substrates are positioned at regular intervals below an inkjet printhead 1 connected via a line 2 to a container 3 containing a fluid formulation for treatment with the inkjet nozzles. Furthermore, the light source 4 is arranged in such a way that the radiation emitted from the light source 4 is incident on the space between the print head 1 and the substrate 5 (step a). The printhead 1 ejects the fluid formulation for treatment with the inkjet nozzles in the form of individual droplets 6 falling on the substrate 5 (step b). During the flight of the droplet 6 by the radiation emitted by the light source 4, it is at least partially solidified (step c), so that the at least partially solidified droplet or particle 7 hits the...
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Abstract
The invention relates to a method for producing polymer particles in which, in response to electrical signals, by means of an inkjet print head having at least one nozzle, a fluid preparation for processing by means of inkjet nozzles is expelled from the nozzle in the form of droplets and, by means of a radiation source, radiation is aimed at the droplets in flight, wherein the fluid preparation for processing by means of inkjet nozzles at least partly hardens under the action of the radiation, such that particles are obtained from the fluid droplets before interception or impingement. The fluid preparation for processing by means of inkjet nozzles comprises at least one representative from the group comprising pre-polymers and / or oligomers and / or monomers and / or reactive thinners and at least one photoinitiator, the representative from the first class of compounds having at least one first polymerizable group which can be radically polymerized. The invention further relates to a printed product comprising a printed or printable substrate or carrier material having a rough polymer coating, wherein the coating is formed by spherical or largely spherical polymer particles, and to a device for producing a corresponding printed product.
Description
technical field [0001] The present invention generally relates to a method for producing polymeric particles and polymeric structures composed of thermoplastics and / or elastomers and / or duromers, hereinafter referred to simply as particles or polymeric particles. In particular, the present invention relates to a method for producing a rough polymer coating, a printed article comprising a substrate or carrier material with at least one rough polymer coating and a method for producing a rough polymer coating on a substrate or support Corresponding device for producing rough polymer coatings on materials. Background technique [0002] Methods of fabricating 3D structures on substrates using print heads are known in the art. Particles or solutions containing particles are used in these methods. [0003] WO 2011 / 077200 A1 describes a method in which metallic or glass particles such as pigments and glitter are applied to a substrate. In order to ensure the adhesion of the parti...
Claims
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IPC IPC(8): B05D5/02
CPCB05D5/02B41J11/00214B33Y10/00B33Y30/00B29C64/112B33Y70/10B33Y70/00B29C64/209B05D3/067B41J2/135C08J3/12C08J3/28B41J11/0015B41J2/01B41M5/502
Inventor D·施拉特贝克
Owner ACTEGA SCHMID RHYNER AG