摘要:
A coating liquid application apparatus is provided which can apply a coating liquid, such as a coating agent for improving a weatherability of a printed surface, to the printed surface of a print medium automatically and at high speed. For this purpose, this invention uses the application mechanisms to apply the coating liquid to the print medium that was ink-printed with an image. The application mechanism has a pair of rollers supplied with the coating liquid. Multiple stages of such application mechanisms are provided. The print medium is passed between the paired rollers successively from one application mechanism to another to apply the coating liquid to the print medium in a plurality of stages.
摘要:
Disclosed is a method for making a substrate coated with an adhesive, comprising applying an electron beam modifiable adhesive layer onto a repeatably reusable transfer surface, irradiating the adhesive layer with an electron beam to chemically modify the adhesive layer, and transferring the irradiated adhesive layer to a substrate. Also disclosed is an adhesive coated web, comprising a substrate having at least one component susceptible to electron beam radiation degradation having no electron beam radiation modification and an adhesive layer having an electron beam modified composition and having no chemical, thermal, or ultraviolet crosslinking agent.
摘要:
The present invention is directed to a method and devices for producing flexible sheeting including a screened hot-melt adhesive coating wherein said sheeting is based on wovens, knits or non-wovens as mainly employed in garment setting inlays. The coating is accomplished with a paste forming a barrier layer, the imprint of which is powdered with the hot-melt adhesive powder. Excess powder not adhering to the imprint screen is removed by blower/suction means prior to the coating being dried and sintered.
摘要:
A method and an apparatus for transferring ink, varnish or adhesive during laminating or printing, particularly flexographic printing, operates with a roller in the form of a smooth roller for transferring the material from the smooth roller to a substrate. A plurality of spray modules arranged next to each other and individually controllable is provided for spraying the material onto one or more cylindrical portions of the smooth roller. A doctor blade is arranged following the point of transfer of the material as seen in the direction of rotation of the smooth roller.
摘要:
A paster for the application of a film of water-containing adhesive to a running substrate of cigarette paper or the like automatically replaces the evaporated percentage of water when the substrate-processing machine is idle but the paster continues to circulate adhesive in order to prevent a rise in the viscosity of the then circulating and water releasing adhesive. The quantity of water in the circulating adhesive and other parameters (such as the temperature) of the adhesive are monitored by several sensors, and signals which are transmitted by such sensors are processed to regulate the admission of water in order to maintain the percentage of water, and hence the consistency, of the circulating adhesive within a range not appreciably departing from that when the paster is in actual use to apply one or more films of adhesive to the running substrate.
摘要:
A roll transfer coating method for hot melt adhesive comprising a step in which hot melt adhesive supplied from a hot melt adhesive supply apparatus passes through a slotted nozzle with a smoother roll and coats the raised pattern surface of a coating roll upon which a raised pattern is formed; a step in which the item being coated is sandwiched and compressed while being moved between the coating roll and a compression roll and the hot melt adhesive coated on the projections of the coating roll is transferred from the raised surface of the coating roll to the surface of the item being coated, and a step in which hot air for accelerating hot melt adhesive transfer is blown from a direction opposite the roll rotation direction and toward the hot melt adhesive transfer region sandwiched between the coating roll and compression roll.
摘要:
A coating device for coating a size-press roll, paper or board or an equivalent moving base including a revolving coating bar which rests against a moving base. The coating bar extends across the machine width and is supported on a cradle substantially over its entire length. The coating bar spreads and smooths a coating agent introduced into the coating device and applied onto the moving base before the moving base contacts the coating bar. The coating bar in accordance with the invention is a smooth bar of large diameter, fitted against the moving base so that the profile of coating quantity of the coating agent can be controlled.
摘要:
An apparatus and method for applying material to the crests or troughs of corrugated sheet material or selected portions of substantially flat sheet material. A first roller is provided with a plurality of circumferentially-undulating flutes disposed about it peripheral surface. The flutes define first roller crests and first roller troughs. A second roller is provided with a plurality of circumferentially-undulating flutes disposed about its peripheral surface. The flutes define second roller crests and second roller troughs. The first roller and second roller are synchronized so that as the rollers rotate the crests of one roller nest in the troughs of the other roller. The crests or troughs of the first roller are provided with one or more nozzles which apply the desired quantity of coating material to the corrugated sheet material crests or troughs as the first and second roller crests and troughs nest.
摘要:
A method for at least one-sided coating of a material web with an application medium is performed by a two-element applicator device having at least one applicator roll and a counter element defining a gap through which the material web is conveyed. The method includes the steps of pre-metering the application medium onto the applicator roll and transferring the application medium onto the material web in the gap. Pre-metering of the application medium to the applicator device is performed by at least one free jet.
摘要:
The invention relates to a coating device for the coating of a size-press roll, paper or board or an equivalent moving base. The coating device includes a revolving coating bar which rests against a moving base. The coating bar extends across the machine width and is supported on a cradle substantially over its entire length. The coating bar spreads and smooths a coating agent introduced into the coating device and applied onto the moving base before the moving base contacts the coating bar. The coating bar in accordance with the invention is a smooth bar of large diameter, fitted against the moving base so that the profile of coating quantity of the coating agent can be controlled.