Abstract:
Provided is a coating apparatus that allows high-quality coating by causing a coated object to pass through a falling curtain of paint without vibrating the coated object. A coating apparatus 1, which coats a surface of a plate-shaped coated object M, includes: a table 10, on which the coated object M is disposed; a flow coater head 20, from which a curtain of paint P falls; a gutter-shaped liquid receiver 30, which is disposed below the flow coater head 20 and which collects the paint P falling from the flow coater head 20; and a horizontal conveying portion 41, which conveys the table 10, on which the coated object M is disposed, in a horizontal direction to pass through the paint P falling from the flow coater head 20.
Abstract:
The present disclosure provides apparatuses and methods for non-contact printing on comestible products. The apparatus includes an extruder for extruding a slab of an edible substrate and a non-contact printing device for printing an edible ink on the slab. The apparatus provides versatility as the printing device may be placed anywhere along the apparatus. The printing device may be positioned along the apparatus as desired to operate in cooperation with other components of the apparatus.
Abstract:
A curtain coating method including: ejecting at least one layer of a coating liquid from a slit, and making the ejected coating liquid fall freely from a curtain nozzle lip by using a curtain edge guide which guides the coating liquid in the form of a curtain liquid film, so as to apply the coating liquid onto a continuously running web, wherein the coating liquid is applied by moving the curtain edge guide toward the depth direction when the curtain liquid film is seen from the front.
Abstract:
Curtain coater for discharging liquid or pasty application medium in the form of a curtain moving substantially under the force of gravity onto a moving paper or board web, comprising a nozzle body which has a first distributor chamber extending along a discharge width, to which the application medium is supplied via at least one supply line, and in the flow direction (S), a flow channel which breaks up the application medium into sectional flows, and has a second distributor chamber, which discharges the application medium as a curtain via an outlet slot, wherein in the flow direction, the second distributor chamber has a flow path with a plurality of direction changes, which runs through throttling points and expansion chambers.
Abstract:
A curtain coating method including: discharging at least one coating liquid from a slot type die; forming a coating liquid film of the coating liquid freely falling; and applying the coating liquid film to a support medium continuously running, with both right and left ends of the coating liquid film being held by a pair of edge guides, wherein, during non-coating, a direction in which the coating liquid is discharged from the slot type die is kept in a horizontal direction or tilted from the horizontal direction in a direction distancing from the support medium.
Abstract:
Curtain coater for discharging coating medium in the form of a curtain moving substantially under the force of gravity onto a moving paper or board web, comprising a hopper (1), which has a cavity (7) extending along a discharge width, to which the coating medium is fed via at least two feed lines (12) which each have a device for adjusting the volume flow of coating medium fed in, and a flow channel (6) which discharges the coating medium via an outer slot as a curtain, wherein the flow channel (6) is broken down into a large number of individual widening guide channels (6.1 to 6.n) of a diffuser block which, on the inlet side, adjoin a cavity (7) subdivided along the discharge width, at least in some regions, into sections (7.1 to 7.n), each of these sections (7.1 to 7.n) being connected to a feed line (12) and having a pitch which spans a plurality of guide channels (6.1 to 6.n) of the diffuser block.
Abstract:
A coating apparatus including a coating part which applies a liquid material including an oxidizable metal on a substrate, a chamber having a coating space in which the coating part applies the liquid material on the substrate and a transport space into which the substrate is transported, and a removal unit which removes the liquid material from the inside of the chamber when at least one of oxygen concentration and humidity inside the chamber exceeds a threshold value.
Abstract:
An apparatus and process for depositing slurry upon a moving forming web. The apparatus includes a pivotally mounted headbox for depositing slurry from the inner bottom surface of the headbox down an inclined spillway as a continuous curtain onto a moving web. The headbox is mounted transverse to the direction of travel of the moving web. The headbox also has vertical edge boards, including a headbox back edge board and two opposed headbox side edgeboards, on three respective sides of the headbox to prevent slurry from spilling over the sides and back of the headbox. The headbox is supplied with slurry from a slurry mixer by a feed line mounted on a reciprocating trolley which moves, transverse to the direction of travel of the moving web, back and forth along the length of the headbox.
Abstract:
A device for direct or indirect application of liquid or viscous coating medium by way of an application system onto a material web, especially a paper or cardboard web, including a weakening device for weakening the boundary layer of air that is carried along by the application surface. The weakening device is located prior to the applicator device viewed in direction of travel of the application surface. The weakening device includes a blowing device and a suction device. The blowing device is located prior to the applicator device when viewed in direction of travel of the application surface and produces an air flow in opposite direction to the direction of travel. The suction device is located prior to the blowing device when viewed in direction of travel of the application surface and sucks off at least a portion of the air flow that is produced by the blowing device, as well as at least a portion of the boundary layer of air that is carried along by the application surface.
Abstract:
The invention relates to a process for applying at least two chemically different, flowable media, particularly solutions of polymers, dispersions or combinations thereof as adhesives, coating materials or coatings. By means of a multiple cascade die 1 at least two chemically different, flowable media 30, 32 are applied to web-form substrates 20; 40, 41 continuously in one operation. The total amount within a multilayer application 51 is between 2 g per m2 to 200 g per m2. The ratio of the individual layers 31, 33 within the multilayer application 51 to one another is between 0.1 to 100.