Abstract: It has now been determined that an internal optical defect can be eliminated by controlling the relative speed mismatch between the resilient roll and the casting roll in a film extrusion coating process. In particular, slowing down the surface speed of the resilient roll relative to the casting roll when coating a biaxially orientated film was found to remove the optical defect. Conversely, speeding up the surface speed of the resilient roll relative to the casting roll when coating a uniaxially orientated film was found to remove the optical defect.

Abstract: It has now been determined that an internal optical defect can be eliminated by controlling the relative speed mismatch between the resilient roll and the casting roll in a film extrusion coating process. In particular, slowing down the surface speed of the resilient roll relative to the casting roll when coating a biaxially orientated film was found to remove the optical defect. Conversely, speeding up the surface speed of the resilient roll relative to the casting roll when coating a uniaxially orientated film was found to remove the optical defect.

Abstract: An adhesive take-up, metering and spreading unit, for bonding machines is truck-mounted so that it can be replaced without having to interrupt the operation of the plant, includes a plurality of rollers arranged in series, wherein a first rubber-clad roller takes up adhesive from a reservoir and transfers it to an anilox roller, from which the adhesive is taken up by a second rubber-clad roller, which transfers it to a film to be bonded. Each roller rotates at a higher speed than the preceding one, and the unit is fitted with members that regulate the distance between the rollers, and consequently the pressure that each rubber-clad roller exerts on the anilox roller, in order to meter the precise quantity of adhesive taken up and spread on the film. This characteristic allows even special adhesives, whose application is particularly difficult due to their viscosity characteristics, to be precisely spread and metered.

Abstract: Methods and apparatus for coating a major surface of a strip article advancing past and in contact with an applicator roll by supplying coating material to the applicator roll for transfer to the strip surface while urging a metering roll against the applicator roll to impart a coating profile to the coating material on the applicator roll before the coating material having that profile is transferred to the strip surface, wherein the metering roll is subjected to a force for bending the axis of the metering roll convexly toward the applicator roll, thereby to compensate for deflection of the metering roll that would otherwise tend to cause nonuniformity of applied coating weight across the width of the strip.

Abstract: The present disclosure provides for a method for transferring fluid. The method provides for the steps of: a) providing a fluid transfer component comprising a first surface, a second surface, a non-random pattern of distinct pores, the pores connecting the first surface and the second surface, the pores being disposed at preselected locations to provide a desired pattern of permeability, b) providing a fluid receiving component comprising a fluid receiving surface, c) motivating a fluid into contact with the first surface and subsequently through the distinct pores to the second surface, d) bringing the second surface and the fluid receiving surface into fluid transfer proximity, e) transferring fluid from the second surface to the fluid receiving surface.

Abstract: A method and apparatus for making adhesive-backed labels. Glassine paper stock is unwound from a roll, coated with photo-cationic silicone and exposed to wavelength-controlled illumination to cure. Hot melt adhesive is applied over the silicone. Simultaneously, label stock is fed with the coated glassine paper to laminating rollers where the two are joined. Illumination is provided by a dichroic reflector.

Abstract: In a film lamination apparatus and method, there is no one-side contact of a pressing roller that presses a film to be laminated. The film is laminated using a rotatable pressing roller having a heater incorporated therein. The pressing roller is pressed onto the film placed on a semiconductor substrate while generating heat by the heater inside the pressing roller. The pressing roller is rolled on the film so as to laminate the film on the semiconductor substrate by partially heating the film by the pressing roller while moving the pressing roller.

Abstract: A process for imparting a simulated patina appearance to a copper substrate, and a substrate having that appearance. A colorant having the desired initial patina color tone is employed to produce a non-continuous layer of colorant on the surface of a copper substrate by roll coating. The appearance of patination of the desired tone is created by interspersed spots of colorant with the remaining portion of the substrate being exposed for natural patination. The interspersed spots of colorant may be produced by screen printing, by spattering, as by spraying, or by mechanical removal of colorant after application to the substrate surface, or a combination.