Embodiments of an enclosed coating system according to the present teachings can be useful for patterned area coating of substrates in the manufacture of a variety of apparatuses and devices in a wide range of technology areas, for example, but not limited by, OLED displays, OLED lighting, organic photovoltaics, Perovskite solar cells, and organic semiconductor circuits. Enclosed and environmentally controlled coating systems of the present teachings can provide several advantages, such as: 1) Elimination of a range of vacuum processing operations such coating-based fabrication can be performed at atmospheric pressure. 2) Controlled patterned coating eliminates material waste, as well as eliminating additional processing typically required to achieve patterning of an organic layer. 3) Various formulations used for patterned coating with various embodiments of an enclosed coating apparatus of the present teachings can have a wide range of physical properties, such as viscosity and surface tension. Various embodiments of an enclosed coating system can be integrated with various components that provide a gas circulation and filtration system, a particle control system, a gas purification system, and a thermal regulation system and the like to form various embodiments of an enclosed coating system that can sustain an inert gas environment that is substantially low-particle for various coating processes of the present teachings that require such an environment.

A liquid knife cleaning apparatus and a liquid knife are provided. The liquid knife cleaning apparatus includes: a frame configured to be arranged on the liquid knife and be capable of reciprocating in an extending direction of the knife edge; a cleaning blade configured to extend into the knife edge of the liquid knife and be capable of reciprocating inside the knife edge under the driving of the frame to clean the knife edge, the cleaning blade being arranged on the frame; and a movable mechanism configured to control the frame to reciprocate on the liquid knife in the extending direction of the knife edge, the frame being connected to the movable mechanism.

A fluid application device having an applicator head, a slot die assembly and a securing mechanism for securing the slot die assembly to the applicator head is provided. The slot die assembly includes a die extruder comprising one or more fluid input ports configured to receive a fluid from the applicator head, a shim positioned adjacent to the die extruder, and a plate positioned adjacent to the shim on a side of the shim opposite from the die extruder. The securing mechanism includes a securing component at one of the applicator head and the slot die assembly and a corresponding securing component at the other of the applicator head and slot die assembly.

Aspects of the methods and apparatuses herein involve applying fluids onto an advancing substrate. The apparatuses and methods herein may provide for the application of viscous fluids, such as adhesives, in pre-determined patterns to an advancing substrate. The fluid application apparatus may include a slot die applicator and a substrate carrier. The slot die applicator may include a slot opening, a first lip, and a second lip, the slot opening located between the first lip and the second lip. And the substrate carrier may be adapted to advance the substrate past the slot die applicator as the slot die applicator discharges adhesive onto the substrate. In operation, when a first surface of the substrate is disposed on the substrate carrier, the substrate carrier advances a second surface of the substrate past the slot opening of the slot die applicator.

A fabric, such as a loop fastener material, is finished by applying a foam to a surface of the fabric, the foam containing both a liquid binder and a powder. The binder is allowed to flow into pores of the fabric and coat fiber interstices of the fabric as the foam collapses, and is dried to stabilize the fabric. The powder is of a particle size selected to cause most of the powder to remain on the surface of the fabric while the binder is dried to bond the powder to the fabric surface. The powder, as bonded to the fabric surface, is activatable, such as by heat or RF or UV energy, to adhere the stabilized fabric to another surface or to provide a desired surface property.

A device for manufacturing a membrane-electrode assembly of a fuel cell includes: an electrolyte membrane feeder unwinding an electrolyte membrane and supplying the unwound electrolyte membrane to a preset transfer path; a first catalyst coater installed in the side of the electrolyte membrane feeder and coating a first catalytic material on another surface of the electrolyte membrane every a preset pitch; a film processor installed in a rear side of the first catalyst coater, supplying a second protective film onto a first catalyst electrode layer on the other surface of the electrolyte membrane, and taking off the first protective film from the one surface of the electrolyte membrane; and a second catalyst coater installed in a rear side of the film processor and coating a second catalytic material on the one surface of the electrolyte membrane.

Described herein is a coating system comprising an applicator head that is configured to apply a coating to a surface of a workpiece, a shroud comprising a housing and an internal cavity located inside of the housing, and a humidifying apparatus comprising an output that is fluidly coupled to the shroud, wherein the humidifying apparatus configured to introduce a quantity of humid air to the internal cavity of the shroud.

The present disclosure provides a curved surface coating device. The curved surface coating device includes a bracket having a first and second ends. The curved surface coating device includes a glue coating portion connected with the first end of the bracket. The curved surface coating device includes a transmission member connected between the first and second ends of the bracket and its distance from the first end of the bracket is adjustable. The curved surface coating device includes a first driving mechanism connected with the transmission member for driving the bracket to rotate about the transmission member as a center of rotation. The curved surface coating device includes a second driving mechanism connected with the bracket for driving the bracket to move on a line where the first end and the second end are located.

According to one embodiment, a system for manufacturing a fully impregnated thermoplastic prepreg includes a mechanism for moving a fabric or mat and a drying mechanism that removes residual moisture from at least one surface of the fabric or mat. The system also includes a resin application mechanism that applies a reactive resin to the fabric or mat and a press mechanism that presses the coated fabric or mat to ensure that the resin fully saturates the fabric or mat. The system further includes a curing oven through which the coated fabric or mat is moved to polymerize the resin and thereby form a thermoplastic polymer so that upon exiting the oven, the fabric or mat is fully impregnated with the thermoplastic polymer. During at least a portion of the process, humidity in the vicinity of the coated fabric or mat is maintained at substantially zero.

A hybrid scaling and patterning apparatus for producing thin films with multi-material, customized patterns is disclosed. The apparatus includes a slot die body integrated with multiple inlets and corresponding diverging channels passing materials through the die body in a planar, continuous laminar flow. The hybrid scaling and patterning apparatus may be used in a method of preparing multi-material, patterned thin film materials.