Abstract: There are provided a washout processor and a washing method that prevent solid contents from being attached to a developed flexographic printing plate precursor again.

Abstract: Provided is a washing device that has a small device configuration, is excellent in maintainability, and further has a high productivity. The washing device performs development using a washing solution while transporting an imagewise exposed flexographic printing plate precursor. The washing device has a transporting unit that transports the flexographic printing plate precursor along a transport path having a curved transport passage and a linear transport passage, using a leader and a developing portion that performs development by removing an unexposed portion of the flexographic printing plate precursor. The transporting unit transports the flexographic printing plate precursor using a winding transmission method or transports the flexographic printing plate precursor using a method of winding a traction member provided at the leader.

Abstract: Provided are a washout processor and a washing method in which a device configuration is small and processing such as development can be stably performed on a flexographic printing plate precursor. There is provided a washout processor that performs development using a washing solution while transporting an imagewise exposed flexographic printing plate precursor, the washout processor having a leader that fixes both of a leading end and a trailing end of the flexographic printing plate precursor and a tension applying unit that applies tension to the flexographic printing plate precursor.

Abstract: Provided is a washing device that has a small device configuration, is excellent in maintainability, and further has a high productivity. The washing device performs development using a washing solution while transporting an imagewise exposed flexographic printing plate precursor. The washing device has a transporting unit that transports the flexographic printing plate precursor along a transport path having a curved transport passage and a linear transport passage, using a leader and a developing portion that performs development by removing an unexposed portion of the flexographic printing plate precursor. The transporting unit transports the flexographic printing plate precursor using a winding transmission method or transports the flexographic printing plate precursor using a method of winding a traction member provided at the leader.

Abstract: There is provided an applicator that applies a coating liquid onto the upper surface of a web, and an application method which are capable of sufficiently enhancing the evenness of a coating surface. The applicator includes: a bar which rotates while coming into contact with the upper surface of the continuously travelling web via the coating liquid; and a barrier plate which is provided on an upstream side of the bar in a travelling direction of the web and allows the coating liquid to flow in a direction toward the web between the barrier plate and the bar, in which, when a distance between the barrier plate and an end edge portion of the bar, which is closest to the barrier plate, is referred to as A and a distance between the barrier plate and the web is referred to as B, A is 0.5 mm to 5 mm, B is 0.5 mm to 5 mm, and B?A is satisfied.

Abstract: There is provided an applicator that applies a coating liquid onto the upper surface of a web, and an application method which are capable of sufficiently enhancing the evenness of a coating surface. The applicator includes: a bar which rotates while coming into contact with the upper surface of the continuously travelling web via the coating liquid; and a barrier plate which is provided on an upstream side of the bar in a travelling direction of the web and allows the coating liquid to flow in a direction toward the web between the barrier plate and the bar, in which, when a distance between the barrier plate and an end edge portion of the bar, which is closest to the barrier plate, is referred to as A and a distance between the barrier plate and the web is referred to as B, A is 0.5 mm to 5 mm, B is 0.5 mm to 5 mm, and is satisfied.

Abstract: To provide an on-press development type lithographic printing plate precursor excellent in ink receptivity and printing durability. A lithographic printing plate precursor which includes a support, an image-recording layer which contains a sensitizing dye, a polymerization initiator and a polymerizable compound and an unexposed area of which is capable of being removed by supplying after exposure, at least any of printing ink and dampening water on a printing machine, and an overcoat layer containing a water-soluble resin in this order, wherein the overcoat layer is substantially not mixed with the image-recording layer.

Abstract: A coating method of forming a plurality of layers on a belt-like support continuously traveling, comprising: a step of applying a first coating liquid onto a front surface of the support to form a lower layer on the support; a drying step of removing a solvent in the lower layer until an amount of the residual solvent reaches not more than 100 mg/m2; a step of applying a second coating liquid onto the lower layer after drying to form an upper layer; and a drying step of removing moisture of the upper layer; wherein the drying step of removing moisture of the upper layer comprises: a first drying step of removing moisture in the upper layer until a moisture content of the upper layer reaches not more than 10% of moisture at the time of application within a range in which a following conditional expression (1) is satisfied: (1) temperature (Tw) of the support?average softening temperature (T0) of the lower layer+10° C.

Abstract: A coating method of forming a plurality of layers on a belt-like support continuously traveling, comprising: a step of applying a first coating liquid onto a front surface of the support to form a lower layer on the support; a drying step of removing a solvent in the lower layer until an amount of the residual solvent reaches not more than 100 mg/m2; a step of applying a second coating liquid onto the lower layer after drying to form an upper layer; and a drying step of removing moisture of the upper layer; wherein the drying step of removing moisture of the upper layer comprises: a first drying step of removing moisture in the upper layer until a moisture content of the upper layer reaches not more than 10% of moisture at the time of application within a range in which a following conditional expression (1) is satisfied: (1) temperature (Tw) of the support?average softening temperature (T0) of the lower layer+10° C.

Abstract: In the present invention, a coating liquid satisfies the liquid physical property conditions: (A) in the drying process, after the solid content concentration in the coating liquid is increased to 15% by mass or more by drying the coating film, or after the start of drying when the solid content concentration in the coating liquid is 15% by mass or more at the time of coating; (B) the shear viscosity of the coating liquid becomes 5 mPas or more for the shear rate of 103 sec?1 or less; (C) the value obtained through dividing by the average viscosity the first differential coefficient, the increase coefficient of the increase rate of the shear viscosity relative to the increase rate of the solid content concentration is 0.15 or more; and (D) the second differential coefficient, an additional increase coefficient of the increase coefficient relative to the solid content concentration is positive.

Abstract: A sequential multi-layer coating method comprises: applying a photosensitive layer protection layer (A) L1 with a rod coating device onto a continuously traveling web; and applying a photosensitive layer protection layer (B) L2 with an extrusion coating device, wherein W/[U(?1??2)]?0.018 . . . (A1) is satisfied when W (cc/m2) represents a wet coating amount of the photosensitive layer protection layer (B) L2; U (m/min.) represents a traveling speed of the web; ?1 (mN/m) represents a dynamic surface tension of the photosensitive layer protection layer (B) L2; and ?2 (mN/m) represents a static surface tension of the photosensitive layer protection layer (A) L1. This method provides stable coating without coating defects such as poor coating, liquid repellency and coating streak when a non-contact coater is used as a coating device for the upper layer to conduct sequential multi-layer coating.

Abstract: A drying device, which dries a photosensitive layer of a photosensitive planographic printing plate using infrared rays, includes an infrared emitting device and a filter that is arranged between the photosensitive planographic printing plate conveyed through the drying device and the infrared emitting device and that blocks a predetermined range of wavelength. More specifically, the filter is arranged between a web that is conveyed through the drying device and a mid-infrared radiator, so as to block 30% or more of wavelengths of 1 ?m or less. As a result, fogging on a photosensitive coating layer can be prevented, and high heating efficiency can be achieved.

Abstract: In the present invention, a coating liquid satisfies the liquid physical property conditions: (A) in the drying process, after the solid content concentration in the coating liquid is increased to 15% by mass or more by drying the coating film, or after the start of drying when the solid content concentration in the coating liquid is 15% by mass or more at the time of coating; (B) the shear viscosity of the coating liquid becomes 5 mPas or more for the shear rate of 103 sec?1 or less; (C) the value obtained through dividing by the average viscosity the first differential coefficient, the increase coefficient of the increase rate of the shear viscosity relative to the increase rate of the solid content concentration is 0.15 or more; and (D) the second differential coefficient, an additional increase coefficient of the increase coefficient relative to the solid content concentration is positive.

Abstract: There are provided a moisture conditioning method and a moisture conditioning apparatus which enable the moisturizing of a coating film in a short time and at high efficiency, thereby improving productivity, and besides, do not require an increase in the path length of the moisture conditioning zone, thereby contributing to cost saving and space saving. When moisture conditioning a coating film having been applied onto a substrate by allowing the coating film to stand in or pass through a moisture conditioning zone where humidity is controlled by spraying water, the water to be sprayed in the moisture conditioning zone is made into fine water particles before being sprayed by applying a high voltage or a magnetic force to the water using a moisture conditioning apparatus.

Abstract: A drying device, which dries a photosensitive layer of a photosensitive planographic printing plate using infrared rays, includes an infrared emitting device and a filter that is arranged between the photosensitive planographic printing plate conveyed through the drying device and the infrared emitting device and that blocks a predetermined range of wavelength. More specifically, the filter is arranged between a web that is conveyed through the drying device and a mid-infrared radiator, so as to block 30% or more of wavelengths of 1 ?m or less. As a result, fogging on a photosensitive coating layer can be prevented, and high heating efficiency can be achieved.

Abstract: An electrostatic coating device and an electrostatic coating method are provided which can expel, in a form of drops having high monodispersability, a coating liquid which is highly viscous. The electrostatic coating device includes a coating liquid chamber storing a coating liquid in an interior of the coating liquid chamber; a voltage applying portion applying a voltage, which is positive or negative with respect to an object-to-be-coated onto which the coating liquid is to be coated, to the coating liquid in the coating liquid chamber; and a nozzle expelling, in drop form and toward the object-to-be-coated, the coating liquid to which the voltage has been applied by the voltage applying portion.