Abstract: According to the method and the apparatus for curing a coated film of the present invention, since an ionization radiation is applied after the O2 concentration in the near-surface layer within 1 mm above the surface of the coated film is adjusted to 1000 ppm or lower, the coated film can be sufficiently cured by irradiation of the ionization radiation. In other words, according to the method and the apparatus for curing a coated film of the present invention, since the O2 concentration in a thin near-surface layer on the surface of a coated film is decreased, the coated film can be sufficiently cured by irradiation of an ionization radiation. As a result, the amount of inert gas supplied upon irradiation of an ionization radiation can be reduced, and downsizing and cost reduction of equipment can be achieved.

Abstract: In an aspect of the coating method according to the present invention, the lower limit decompression degree PS1 at which a seam trouble occurs is obtained from the formula of the viscocapillary model. According to the aspect of the present invention, coating is performed by setting the Pb so as to satisfy PS1<P0?Pb?PS1+0.2, and therefore, stepped unevenness can be effectively suppressed so that a seam trouble does not occur. It goes without saying that the aspect of the present invention can be applied to high viscosity/thick film coating, but it is effective especially in the case where a coating solution with low viscosity (for example, 0.005 Pa·s or lower) is coated to be an ultra-thin film (for example, 10 ?m or less in the wet film thickness) where stepped unevenness easily occurs.

Abstract: The present invention provides a method of curing a coated film which includes irradiating an active ray by a plurality of active ray irradiation devices, wherein the coated film is composed of an active ray-curable resin formed on a surface of a running band-shaped flexible support, including the step of: maintaining the coated film in a deoxidized atmosphere during a period in which the flexible support irradiated with an active ray by the at least one active ray irradiation device is transferred to the active ray irradiation device in a subsequent step.

Abstract: The coating apparatus includes a base for supporting a slot die, wherein the base has a height of not more than 5 m from a ground level, and a mean cross sectional area of not less than 3 m2 in terms of a horizontal direction.

Abstract: A gravure coating apparatus containing a gravure roll, a manifold block for continuously coating a solution on an outer peripheral surface of the gravure roll 15 by immersing a lower part of the outer peripheral surface in the solution, and a doctor blade for scraping off excess solution, a surface of a flexible strip support conveyed to the gravure roll being made in contact with the outer peripheral surface of the gravure roll to transfer and coat a prescribed amount of the solution on the surface of the flexible strip support. The apparatus further contains a dam block which extends from the manifold block on a side where the outer peripheral surface of the gravure roll moves out from the manifold block by rotation of the gravure roll.

Abstract: According to the coating method of the present invention, the uneven portion on the land of the upstream side makes it possible to increase a contact area between the coating solution and the land, thereby improving the stability of a bead. In other words, according to the coating method of the present invention, it is possible to improve the stability of a bead on the upstream side, the stability having been reduced by the overbite shape of the die. Thus, even when a coating solution having a low viscosity of 10 cp or less is applied with a small coating amount of 10 cc/m2 or less, it is possible to increase the speed of the web without causing an uneven coating.

Abstract: According to the method and the apparatus for curing a coated film of the present invention, since an ionization radiation is applied after the O2 concentration in the near-surface layer within 1 mm above the surface of the coated film is adjusted to 1000 ppm or lower, the coated film can be sufficiently cured by irradiation of the ionization radiation. In other words, according to the method and the apparatus for curing a coated film of the present invention, since the O2 concentration in a thin near-surface layer on the surface of a coated film is decreased, the coated film can be sufficiently cured by irradiation of an ionization radiation. As a result, the amount of inert gas supplied upon irradiation of an ionization radiation can be reduced, and downsizing and cost reduction of equipment can be achieved.

Abstract: The coating apparatus includes a base for supporting a slot die, wherein the base has a height of not more than 5 m from a ground level, and a mean cross sectional area of not less than 3 m2 in terms of a horizontal direction.

Abstract: A coated film drying method for drying a film which is coated on a surface of a web while the web is running through a tunnel-shaped dry case having a web entrance and a web exit, comprising the steps of: blowing dry air toward a surface of the coated film through an outlet port which is provided with a porous distributor; and sucking the dry air through an inlet port which is disposed at a position downstream or upstream of the position where the dry air is blown out and on the same side as that on which the outlet port is disposed relative to the coated film, so that a stream of the dry air which flows in a direction parallel to the running direction of the web is formed across the entire width of the surface of the coated film.

Abstract: The present invention provides a process for producing an antireflection film comprising applying, using a slot die, a coating solution onto a web which is backed up by a back-up roller and runs continuously to form at least one layer which has a thickness of 200 nm or less in a dried state and has a refractive index lower than that of the web. The slot die has an edge lip downstream of the running web which has a land length along the running web is 30 to 100 ?m, and the space between the edge lip of the slot die upstream of the running web and the surface of the web is set to be 30 to 120 ?m larger than the space between the edge lip of the slot die downstream of the running web and the surface of the web.

Abstract: A method for coating, comprising the step of: coating with a coating solution using a slot die the surface of a substrate which is continuously running while being supported by a back-up roller, wherein the slot width d of the slot die is 250 ?m or less and the ratio of the slot length L to the slot width d, L/d, is 300 or more.

Abstract: The coating construction has flexibility corresponding to the number of layers of multiple coating layers, by which a multilayer coating film can be produced with small film thickness without adherence of dust to a film surface, a drying fault such as unevenness induced by drying-wind on the film surface, or a coating fault such as a level variation and a streak. The multilayer coating film has a coating surface state of high quality with coating thickness deviation of 3% or less. A coating device is constructed in which at least a feed roller, a coater and a dryer are integrally incorporated in a casing, and the coating device is given a function as an independent device, whereby the production apparatus of the multilayer coating film can be constructed by only appropriately placing as many coating devices as the number corresponding to the number of layers of the multiple coating layers formed on a web between a delivery device and a winder.

Abstract: The present invention provides a method of curing a coated film which includes irradiating an active ray by a plurality of active ray irradiation devices, wherein the coated film is composed of an active ray-curable resin formed on a surface of a running band-shaped flexible support, comprising the step of: maintaining the coated film in a deoxidized atmosphere during a period in which the flexible support irradiated with an active ray by the at least one active ray irradiation device is transferred to the active ray irradiation device in a subsequent step.

Abstract: The present invention provides A method for producing a recording sheet including the steps of coating and forming a coloring material receiving layer containing inorganic particulates and a water-soluble resin on a band-shaped substrate which is wound and supported on a backup roller and continuously travels, and thereafter, coating and forming a top layer on the coloring material receiving layer in a semidry state, comprising: coating the top layer by an extrusion type coater which coats a coating solution to the surface of the substrate via a bead which is formed between the lip tip end and the substrate with cross-linking the coating solution discharged from a lip tip end of a coating head the surface of the substrate, in a state of pressure of an upstream side of the bead reduced so that a pressure reduction degree with respect to atmospheric pressure is in a range from over 0 kPa to 2.

Abstract: A method for forming multiple coating layers produces a coating construction that has flexibility corresponding to the number of layers of multiple coating layers, by which a multilayer coating film can be produced with small film thickness without adherence of dust to a film surface, a drying fault such as unevenness induced by drying-wind on the film surface, or a coating fault such as a level variation and a streak. The multilayer coating film has a coating surface state of high quality with coating thickness deviation of 3% or less. In the method, a belt-like substrate is continuously fed. A coating/drying step follows, with multiple steps performed in a single unit. A plurality of coating layers are formed by sequentially performing the coating/drying step by multiple units. Finally, the belt-like substrate with the multiple coatings is continuously wound.

Abstract: In an aspect of the coating method according to the present invention, the lower limit decompression degree PS1 at which a seam trouble occurs is obtained from the formula of the viscocapillary model. According to the aspect of the present invention, coating is performed by setting the Pb so as to satisfy Ps1<P0?Pb?PS1+0.2, and therefore, stepped unevenness can be effectively suppressed so that a seam trouble does not occur. It goes without saying that the aspect of the present invention can be applied to high viscosity/thick film coating, but it is effective especially in the case where a coating solution with low viscosity (for example, 0.005 Pa·s or lower) is coated to be an ultra-thin film (for example, 10 ?m or less in the wet film thickness) where stepped unevenness easily occurs.

Abstract: A gravure coating apparatus containing a gravure roll, a manifold block for continuously coating a solution on an outer peripheral surface of the gravure roll 15 by immersing a lower part of the outer peripheral surface in the solution, and a doctor blade for scraping off excess solution, a surface of a flexible strip support conveyed to the gravure roll being made in contact with the outer peripheral surface of the gravure roll to transfer and coat a prescribed amount of the solution on the surface of the flexible strip support. The apparatus further contains a dam block which extends from the manifold block on a side where the outer peripheral surface of the gravure roll moves out from the manifold block by rotation of the gravure roll.

Abstract: A method comprising: drying a liquid coating composition containing a volatile solvent and a binder coated to a base film containing cellulose triacetate, wherein drying of the coated base film is started within 10 seconds from coating, and a residual solvent content of the coating is reduced to 30% or less based on the binder within 30 seconds from coating.

Abstract: A method and apparatus for coating a thin film which comprises supplying an organic solvent-based coating solution onto the surface of a transferring member from which the coating solution is then allowed to come in contact with a film base so that it is applied thereto while the coating solution which has been supplied onto the transferring member is being partially recovered for reuse.

Abstract: A recording sheet provided with a coloring material receiving layer containing inorganic particulates and a water-soluble resin is produced in such a manner that production of such a recording sheet is free from restrictions of the composition and properties of coating solutions as well as restrictions of the conditions of coating operation, the coated surface of the recording sheet produced is of high glossiness, and the production of such a recording sheet is carried out in a stable manner without causing lines and unevenness on the coated surface of the recording sheet produced. A coating is applied on a substrate with a slide coater to form a coloring material receiving layer, the coloring material receiving layer is subjected to drying with a dryer, then another coating is applied on the coloring material receiving layer formed with another slide coater to form a overcoat layer, and finally the coated surface is subjected to smoothing/metering treatment with a smoothing/metering unit provided with a bar.