Abstract:
A coating device comprises a longitudinal casing having an input end and an output end at opposed ends of a longitudinal direction, a coating liquid source, spray heads positioned inside the casing in a given arrangement and connected to the coating liquid source, so as to produce a spray of the coating liquid, and conveying means in association with the longitudinal casing so as displace an article along the longitudinal direction of the longitudinal casing such that the given arrangement of the spray heads enables to coat three faces of the article with the coating liquid. A method for coating an article is also provided.
Abstract:
A method of applying a magnetic coating to a surface including steps of releasably attaching a framing member to a surface, the framing member defining at least one opening; applying a magnetic coating to the surface within said opening; allowing the magnetic coating to dry; and removing the framing member from the surface, such that the magnetic coating remains fixed to the surface. The framing member is removed from the surface, and additional magnetic coating is applied to the surface to fill in gaps left from removing the framing member.
Abstract:
A process for continuous production of self-adhesive articles, wherein a) one polyol component is placed in a container A and essentially one isocyanate component is placed in a container B, b) the polyol component and the isocyanate component are mixed in a mixer, c) the polyurethane composition thus mixed is applied to a backing material which is coated with a pressure-sensitive adhesive composition and moves optionally at constant speed, d) the laminate, comprising first backing material, pressure-sensitive adhesive composition and polyurethane composition, is passed through a heat tunnel, for a time which is less than that required for complete curing of the polyurethane, but sufficient for the curves of storage modulus (G′) and loss modulus (G″) of the polyurethane composition, as a function of curing time, to cross each other, e) the laminate is wound up in a winding station.
Abstract:
A coating composition that can be used in a process for coating a substrate where in a first step a radiation curable coating composition is applied to the substrate and/or a radiation permeable film. Next, the substrate and the film are pressed together in such a way that the coating composition is sandwiched between them. Thereafter, the coating composition is cured by irradiation through the film to obtain a coated substrate. In a subsequent step, the film is removed from the coated substrate. The coating composition applied to the film and/or the substrate is a hot melt composition comprising 20 to 100 wt. % of a radiation curable resin or mixture of radiation curable resins having a viscosity in the range of from 15 to 10,000 mPa.s in the temperature range of from 40 to 150° C.
Abstract:
The invention relates to a method for applying fluids, especially particle material, on a area that is to be coated, wherein the fluid is applied on the area to be coated in front of a blade when observed from the direction of forward movement of the blade and said blade is then displaced on the applied fluid. The method is characterized in that the blade performs an oscillation similar to a rotational movement.
Abstract:
A coating composition that can be used in a process for coating a substrate where in a first step a radiation curable coating composition is applied to the substrate and/or a radiation permeable film. Next, the substrate and the film are pressed together in such a way that the coating composition is sandwiched between them. Thereafter, the coating composition is cured by irradiation through the film to obtain a coated substrate. In a subsequent step, the film is removed from the coated substrate. The coating composition applied to the film and/or the substrate is a hot melt composition comprising 20 to 100 wt. % of a radiation curable resin or mixture of radiation curable resins having a viscosity in the range of from 15 to 10,000 mPanulls in the temperature range of from 40 to 150null C.
Abstract:
A method and apparatus for creating a faux finish on a paintable surface. The apparatus includes a polyvinyl alcohol block having first and second ends, and a longitudinal body extending between the first and second ends. The body also includes at least one planar painting surface and a beveled surface located adjacent the first end of the body. The method includes the steps of applying paint to a work surface, contacting a polyvinyl alcohol painting apparatus against the work surface, manipulating the paint on the work surface with the polyvinyl alcohol block, and creating a decorative painting effect.
Abstract:
There is provided a coating method in which an extrusion-type coating head having a plurality of doctor edge surfaces is pressed onto a flexible support laid and running between pass rollers so as to coat the flexible support with a coating composition ejected from a slit, the method comprising the steps of: preparing a lower-layer coating composition so as to have a viscosity of not less than 1 P at rest and a viscosity of not more than 50 cP at a shear rate of 10,000 sec−1; excessively applying the lower-layer coating composition to a surface of the support; scraping a surplus of the lower-layer coating composition by the coating head so that a lower layer is formed; and applying an upper-layer coating composition, which is ejected from the slit, onto the lower layer.
Abstract:
A liquid coating is formed by spraying drops of liquid onto a substrate or a transfer surface from an electrostatic spray head that produces a mist of drops and a wet coating in response to an electrostatic field. During spraying, the electrostatic field is repeatedly altered to change the pattern deposited by the drops. The wet coating can be contacted with two or more pick-and-place devices that improve the uniformity of the coating.
Abstract:
A method and apparatus for in-place repair of the outer surface of a cylinder in an offset lithographic printing press. The steps of the method are performed while the cylinder remains in the printing press. The steps are: cleaning the outer surface of the cylinder; applying an epoxy coating on the cylinder; drying the coating; inspecting the coating after drying to locate any high spots or low spots; and removing any high spots and filling any low spots. In the preferred embodiment, application of the epoxy coating is carried out with an applicator blade mounted on the printing press frame adjacent to the outer surface of the cylinder to be repaired. The applicator blade is an elongated member of substantially the same length as the cylinder and is adjustably mounted parallel to the axis of the cylinder at an adjustable distance from the outer surface of the cylinder, said distance being equal to the desired thickness of the epoxy coating to be applied to the outer surface of the cylinder. The applicator blade is mounted to brackets on the printing press using adjustable fasteners which allow for repositioning the applicator blade.