Abstract:
An applicator roller includes a roller jacket having an outer cylindrical surface for picking up a liquid and, at least to some extent, for transferring the liquid. The roller jacket is formed with at least one perforation through which excess liquid is guidable into a hollow interior of the applicator roller. An assembly of an applicator roller and a rotating element disposed downstream therefrom in a liquid travel direction, a cooling roller stand integrated into a dryer and having the applicator roller, a cooling roller stand disposed immediately downstream from a dryer and having the applicator roller and a printing press having the applicator roller, are also provided. A method is provided for coating a material web.
Abstract:
The invention provides a film forming method that improves throughput in a preliminary discharge. The film forming method according to the present invention can include a preliminary discharge step of preliminarily discharging liquid droplets from a head and a liquid droplet discharge step of relatively moving the head and the work to discharge the liquid droplets onto the surface of the work from the head. The preliminary discharge of the liquid droplets is carried out while the head and the work are moved relative to each other.
Abstract:
A method for conditioning a metering blade of a paper coating machine. The method includes the steps of providing a paper coating machine having at least one metering blade and passing a movable substrate through the paper coating machine such that the metering blade contacts the substrate to distribute any coatings applied to the substrate. The method further includes the step of applying a solution of abrasive material to the substrate at a location upstream of the metering blade such that the abrasive material engages and conditions the blade.
Abstract:
The present invention provides coated fiber strand comprising at least one fiber having a residue of an aqueous forming size composition applied to at least a portion of a surface of the at least one fiber, the aqueous forming size composition comprising: (a) at least one starch; (b) at least one film-forming material; (c) at least one lubricant; and (d) a plurality of discrete particles that provide interstitial space between the at least one fiber and at least one adjacent fiber sufficient to allow wet out of the fiber strand. In one embodiment of the invention, the fibers are glass fibers, the at least one starch comprises an oleophobic starch, the at least one film-forming material comprises a N-vinyl amide polymer, the at least one lubricant comprises an ester, and the particles are dimensionally stable particles selected from polymeric organic materials, non-polymeric organic materials, polymeric inorganic materials, non-polymeric inorganic materials, composite materials and mixtures thereof. In one non-limiting embodiment of the invention, the particles comprise hexagonal boron nitride particles and/or hollow particles formed from a copolymer of styrene and acrylic monomer. The present invention also provides a fabric incoporating the coated fabric strand and an electronic support and an electronic circuit board incorporating the fabric.
Abstract:
A coating apparatus includes a supply unit containing liquid coating material and a reservoir receiving liquid coating material dispensed from the supply unit. A coater dispenses liquid coating material onto a moving strip of material. A liquid meter unit includes a flow passage and a flow regulator associated with the flow passage. A flow rate manager cooperates with the reservoir to determine the flow rate of liquid coating material passing through the flow passage in the liquid meter unit and operates the flow regulator to regulate the flow rate of liquid coating material discharged to the coater.
Abstract:
A can component (3) is coated with a coating material (2) in a manner which involves determining the number of can components to which the coating material is applied, determining the total amount of coating material applied to the can components, and determining, on the basis of the number of can components and the total amount of coating material applied, the average amount of coating material applied to each can component. In this way it is possible to determine whether the correct amount of coating is being applied to the can components.
Abstract:
A vacuum overspray controller reduces or eliminates the overspray incident to the non-contact spray application of a coating material onto a moving, porous substrate. The vacuum assisted overspray controller exposes a first surface of the porous substrate to a vacuum pressure via one or more orifices in its peripheral surface. As a result, particles of coating material that would otherwise contribute to the overspray instead are preferentially received and retained by the second surface of the porous substrate.
Abstract:
An apparatus for forming a film of a process liquid, comprising a mounting table for supporting the substrate to be processed substantially horizontally, a process liquid supply device for supplying a process liquid for processing the substrate, a linear nozzle having a header space which has a length substantially corresponding to a diameter of the substrate and a liquid discharge portion, the header space mutually communicating with the liquid discharge portion, a liquid inlet port which communicates with the process liquid supply device and whose opening is formed above the header space, a moving device for relatively moving the linear nozzle and the mounting table while the liquid discharge portion faces the substrate on the mounting table, and a control device for controlling a viscosity of the photoresist solution within the header space or controlling a temperature of the developing liquid in the header space.
Abstract:
A curtain coating apparatus and method in which a catch pan is disposed between a curtain head and a web. The catch pan includes a receiver part used when a curtain film liquid is not coated, an upright level difference part and a shelf part having a slope in the direction of the level difference part. The catch pan is moved in the web running direction or in the opposite direction. The curtain film is received in the receiver part after stopping the coating or before starting the coating, and the tip of the shelf part is moved backward or forward from the curtain film in starting or stopping respectively, whereby an excess coated part is not produced when starting and stopping the coating.
Abstract:
An apparatus for surface coating or for lacquering a substrate, such as a disk-shaped substrate 2, which can be placed on a substrate carrier 14 and can be driven or given a rotating movement by means of a drive device, wherein the material or the lacquer fluid 5 to be applied is placed on the substrate 2 from a feed device 6. The fluid medium or the lacquer 4 released by the substrate support 14 is delivered at least to a first collecting reservoir 17 which is connected with at least one filter 28, from where the fluid is indirectly or directly conducted via a pump 29 to the first collecting reservoir 27, wherein an underpressure can be set between a first flow-off line 33 of the first collecting reservoir 27 and the pump 29.