JPS63184756A - Image recorder - Google Patents

Abstract

PURPOSE:To prevent a photosensitive material and an image receiving material from winding around a pressing nip roll by transferring the photosensitive material and the image receiving material with pressure while applying a mold releasing agent to the periphery of the pressing nip roll. CONSTITUTION:Mold releasing agent applicators 76, 77 each of which consists of a felt 96 and a supporting member 56 are fitted to the peripheries of a pair of pressing nip rolls 80, 82 on the photosensitive material/image receiving paper inserting side in the axial direction of the nip rolls 80, 82 and the felt 97 is dipped into the mold releasing agent such as silicone oil and fluorine group oil and supported by the supporting members 95 so as to be contacted with the peripheries of the nip rolls 80, 82. Thereby, the mold releasing agent is always uniformly applied to the peripheries of the nip rolls 80, 82 by rotating the nip rolls 80, 82 and slidingly contacting the rolls 80, 82 with the felt 96. Since peeling claws 78, 79 are excited by the nip rolls 80, 82, the photosensitive material S and the image receiving paper C curved along the nip rolls 80, 82 are guided in the carrying direction by the peeling claws 78, 79.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention uses a photosensitive material in which a material on a support is coated with a substance on which an image formed by imagewise exposure is fixed by pressure, and It relates to an image recording device that presses and transfers an image obtained on a photosensitive material to an image-receiving material by overlapping a photosensitive material and an image-receiving material. The present invention relates to an image recording device that transfers an image onto an image-receiving material.

[Conventional technology]

As an example of an image recording material that requires at least a pressure treatment process, for example, a vinyl compound, a photopolymerization initiator, and a colorant precursor are formed on a support as disclosed in JP-A-57-179836. Systems carrying synthetic polymeric resin-walled capsules containing . The image recording method using this system is to imagewise harden the microcapsules by exposure to light, rupture the unhardened microcapsules by applying pressure, and obtain a color image from the released colorant precursor. The method is characterized in that high quality images can be obtained through simple dry processing. However, this system has the drawback of significantly lower photosensitivity than systems using silver halide.

A new recording material that improves these drawbacks, has high photosensitivity, and is capable of obtaining high-quality images through simple dry processing has been proposed in Japanese Patent Application No. 1986-2001 filed by the present applicant.
It is disclosed in the specification of No. 117089. In this recording material, at least a photosensitive silver halide, a reducing agent, a polymerizable compound, and a color image-forming substance are coated on a support, and at least the polymerizable compound and the color image-forming substance are contained in the same microcapsule. It consists of an encapsulated photosensitive composition.

Regarding the image recording method of recording images using this photosensitive material, Japanese Patent Application No. 60-1212 filed by the present applicant
It is disclosed in the specification of No. 84.

This image recording method first performs imagewise exposure to form a latent image, then develops it by heating, and polymerizes the polymerizable compound in the area where the latent image exists to form a macromolecular compound to form microcapsules. harden. Then, the image-receiving material having an image-receiving layer to which the color image-forming substance can be transferred is stacked and pressurized to rupture at least a portion of the microcapsules in the area where the latent image does not exist, and the color image-forming substance is transferred to the image-receiving material. A receiver is used to obtain an image on a material.

Then, using the above-mentioned photosensitive material, this photosensitive material is subjected to imagewise exposure, heat development is performed, and then it is overlaid with an image-receiving material and pressurized, until an image of desired density and desired color density is obtained on the image-receiving material by transfer. An image recording device that automatically performs this has also been proposed.

In this image recording apparatus, in order to transfer the heat-developed photosensitive material onto the image-receiving material, the photosensitive material and the receiving material are overlapped and inserted between a pair of pressure nip rollers, and a It is pressurized with high pressure. This reminder,
For example, 5y contained in the coating layer of the photosensitive material and image-receiving material.
Chemical substances such as aR (styrene butadiene rubber) and PTA (polyvinyl alcohol) act as adhesives,
During pressure transfer, the photosensitive material and the image-receiving material may adhere to the pressure nip roller, and there is a problem in that the photosensitive material and the image-receiving material become wrapped around the pressure nip roller.

Therefore, a pressurizing device has been proposed in which a pair of peeling claws are provided on the discharge side of the pair of pressurizing nip rollers, and the wrapped photosensitive material and the image-receiving material are conveyed while being peeled off.

[Problem that the invention seeks to solve]

However, with the above-mentioned peeling means, if the photosensitive material and the image-receiving material are individually inserted into a pressure device and pressurized, and the image forming surface is brought into direct pressure contact with the pressure nip roller, it becomes difficult to peel the material and the image-receiving material is pressed. It ends up being glued. Then, the photosensitive material or image-receiving material wraps around the pressure nip roller, making pressure transfer impossible, resulting in the problem that the pressure device must be completely disassembled to remove the photosensitive material or image-receiving material.

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to solve the above-mentioned problems, and to provide an image recording device fl configured to prevent a photosensitive material and an image-receiving material from being wrapped around a pressure nip roller during pressure transfer.
Our goal is to provide the following.

[Means and effects for solving the problems] The above object of the present invention is to apply a substance on a support to which an image generated by imagewise exposure is fixed by pressure, and to use a photosensitive material.
An image recording device that overlaps the photosensitive material and the image-receiving material and pressurizes and transfers the image obtained on the photosensitive material to the image-receiving material is used. This is achieved by an image recording apparatus that is equipped with a molding agent application means and a pair of peeling claws that respectively abut the peripheral surface of the pressure nip roller on the downstream side of the contact portion.

That is, by pressure-transferring the photosensitive material and the image-receiving material while applying a release agent onto the circumferential surface of the pressure nip roller,
Chemical substances contained in the coating layer of the photosensitive material and image-receiving material can be prevented from adhering to the pressure nip roller, so the photosensitive material and image-receiving material will not wrap around the pressure nip roller and become unable to be transferred by pressure. .

In the present invention, the photosensitive material refers to a material for obtaining a visible image by applying pressure to a latent image generated by imagewise exposure.

Furthermore, the present invention can be applied to both a system in which the exposed portion is polymerized and cured, and a system in which the exposed portion is depolymerized and softened.

Examples of such materials include statues +;! A material disclosed in Japanese Unexamined Patent Application Publication No. 179836/1983 filed by the present applicant is a material of the type in which a polymerizable compound is imagewise cured by exposure to light and then a visible image is obtained by applying pressure. It will be done. This material has a synthetic polymer resin wall capsule containing a vinyl compound, a photopolymerization initiator, and a colorant precursor supported on a support.

Further, silver halide is contained, imagewise exposure is applied, and post-heat development is performed to develop the silver halide, and the polymerizable compound is simultaneously cured in correspondence with this development.

As a type that obtains a visible image by applying pressure after that,
It is disclosed in Japanese Patent Application No. 121284/1984 filed by the present applicant, and the above patent application No. 1
The optical material disclosed in No. 21284 is one in which a color image-forming substance is transferred to an image-receiving material having an image-receiving layer after heat development to obtain an image on the image-receiving material, and at least a photosensitive halogen is provided on the support. A silver compound, a reducing agent, a polymerizable compound, and a color image-forming substance are coated, and at least the polymerizable compound and the color image-forming substance are encapsulated in the same microcapsule. .

[Embodiment]

Embodiments of the present invention will be described below based on the accompanying drawings.

FIG. 1 is a sectional view of an image recording apparatus according to an embodiment of the present invention.

The image recording apparatus includes a document supporting glass plate 2 mounted on the upper surface of a housing 1 so as to be slidable back and forth in the direction of the arrow. That is, the original is placed face down on the glass plate 2, and the arrow A
Move back and forth in the direction.

At the bottom of the glass plate 2, there is a reflecting mirror 6 for illuminating the original.
An additional illumination plate 8 is provided, and a fiber lens array 10 for forming a draft image on the photosensitive material S at a predetermined position is provided.

A photosensitive material cartridge 14 containing a photosensitive material slt and a wound photosensitive material roll 12 is removably attached to the side of the housing 1. Photosensitive material s8 of photosensitive material cartridge 14? ) A pair of sensitive material feeding rollers 21 and 22 housed in the magazine connection dark box 20 are disposed at the outlet 16, whereby the photosensitive material S wound around the sensitive material roll 12 is fed out by a certain length at a predetermined time. , and can also be retracted as desired.

When the leading end of the photosensitive material 8 advances, the photosensitive material feeding rollers 21 and 22 move away from each other as shown by phantom lines to facilitate the advancement of the photosensitive material 8. A light cutter unit 23 for cutting the photosensitive material S, and a guide plate 24* are arranged in front of the magazine connection dark box 20 (hereinafter, "front" refers to the downstream side in the direction of travel of the photosensitive material, etc.). There is.

In front of the guide plate 24, an exposed photosensitive material support roller 26 and two photosensitive material nip rollers 28, 30 are arranged in pressure contact with the exposed photosensitive material support roller 26. The photosensitive material S guided by the guide plate 24 is brought into close contact with the exposed photosensitive material support roller 26 by the photosensitive material nip rollers 28.
Imagewise exposure of the document is made by the fiber lens array 10 at a position 32 between 8.30 and 30.

In front of the exposed photosensitive material support roller 26, a heat developing device 40 is arranged which heats and develops the exposed photosensitive material 1prSfr. The heat developing device 40 includes a developing housing 41 having a heat insulating effect, a conveying drum 42 disposed within the developing housing 41 for supporting and conveying a photosensitive material, and a conveying drum 420 having an outer periphery of an arc of about 240° on the circumferential surface of the conveying drum 420. spring 48
The photosensitive material S is sandwiched and conveyed between the conveying drum 42 and the heating plate 43 to perform heat development. The heat developing device 40 further includes a pair of transport rollers 44 and a guide member 45 that guide the photosensitive material S to the transport drum 42, and a pair of transport rollers 44 and a guide member 45 that guide the photosensitive material S to the transport drum 4.
2 and a peeling claw 47 that peels off the paper and guides it to the contact portion of the conveyance roller 46.

In front of the conveyance roller 46, a pair of pressure rollers 60,
A guide member 61 that guides the photosensitive material 8t transported by the transport roller 46 to the contact portion of the pressure roller 60 contacts the pressure roller 60 of the image receiving paper c6 supplied from the image receiving paper supply device 72 and transported by the transport roller 62 A photosensitive image receiving paper stacking device 7o is disposed, which includes a guide member 63 for guiding the paper to the photosensitive material receiving paper.

The image-receiving paper supply device 72 transports the image-receiving paper cassette 73 attached to the side of the housing 1 and containing the damaged mat, and the image-receiving paper C in the upper part of the image-receiving paper cassette 73 to a conveying roller 62.
It consists of a feeding roller 74 and a guide member 75.

A pair of pressure nip rollers 80% 82 and a pressure nip roller 80 are provided in front of the photosensitive paper overlapping device fi70.
．． A backup roller 64.86 for uniformizing the pressure applied to the rollers 82 in the axial direction, and a release agent application device 76.7 for applying a release agent to the pair of pressure nip rollers 80.82.
7, the photosensitive material and the image receiving paper C are pressed by a nip roller 80.
．． A transfer device 88 is provided which includes peeling claws 78 and 79 that guide the film from 82 to the guide member 92 . Pressure nip rollers 80, 82, approx. 500 kg/crrr
” are pressed together by the pressure of ”.

A photoreceptor paper peeling device 90 is provided in front of the transfer device 88 . The photosensitive material receiving paper peeling device 90 includes a guide member 92, a feed roller 94, and a guide roller 98 so as to press only the photosensitive material 8 at the Okaya end portion on the feed roller 94.
．． 100 and a peeling belt 102 wrapped around it.

A sensitive material disposal section 104 is provided below one side of the peeling device 90, and a fixing device 106 is provided in front. The sensitive material disposal section 104 includes a guide member 108 and a pair of feed rollers 11.
0.112 and the photosensitive material sent from the peeling device 9a and guided by the guide member 108 are put into the waste box 114 by the feed rollers 110 and 112.

It consists of a fixing device 106il-t, an ultraviolet irradiation tube 124 with a guide member 120 and two reflecting members 122, and a pair of feed rollers 126 and 128. Fixing is performed by irradiating the image receiving paper C with ultraviolet light for about 5 seconds.

In front of the fixing device 106, an output tray 130 for receiving the image receiving paper 0 is attached so as to protrude from the housing 1.

FIG. 2 is a sectional view of the pressure transfer device.

On the circumferential surface of the pair of pressure nip rollers 80.82 on the side where the photosensitive material receiving paper is inserted, a release agent application device 76.77 consisting of a felt 96 and a support member 95 is installed on the pressure nip roller 80.8.
It is provided over two axial directions. The felt 96 is impregnated with a mold release agent such as silicone oil or fluorine oil, and is supported by a support member 95 in contact with the surfaces of the pressure nip rollers 80 and 82. To be careful, the pressure nip roller gQ82 rotates and comes into sliding contact with the felt 96, so that the mold release agent is constantly and uniformly applied to the peripheral surface.

By the way, on the circumferential surface of the pair of pressure nip rollers 80 and 82 on the sensitive material image receiving paper ejection side, there is a peeling claw 78 that is configured to be swingable.
．． 79 is urged against the pressure nip roller 80°82. Here, the contact portion of the peeling claw 78.79 with the pressure nip roller 80.82 has a sawtooth shape as shown in FIG. 3, for example, so that the contact pressure with the pressure nip roller 80.82 is high. It is formed.

Therefore, a pair of pressure nip rollers 8 coated with a female molding agent
0.82, pressure transfer is performed without the photosensitive material or image-receiving material adhering, and the photosensitive material S and image-receiving paper C curved along the pressure nip roller 80.82 are removed by the peeling claw 78.7.
9 in the transport direction.

Here, felt impregnated with a template agent and in sliding contact with the pressure nip rollers 80 and 82 was used as a release agent application means.
The present invention is not limited to this, but the pressure roller BD
, 82 may be used, and a release agent supply device may be provided on the peripheral surface thereof.

(Effects of the Invention) According to the present invention, while applying a release agent on the circumferential surface of the pressure nip roller, the light-sensitive material and the image-receiving material can be separated. Pressure transfer can prevent the photosensitive material and image-receiving material from adhering to the pressure nip roller due to the chemical substances contained in the coating layer of the photosensitive material and image-receiving material. Excellent pressure transfer is performed without the paper being wrapped around the pressure nip roller. Further, it is possible to prevent dust from adhering to the circumferential surface of the pressure nip roller, and a good image can be obtained.

[Brief explanation of the drawing]

FIG. 1 is a sectional view of an image recording device according to an embodiment of the present invention, and FIG.
The figure is a sectional view of the pressure transfer device, and FIG. 3 is a partially enlarged view of the peeling claw. (Symbols in the diagram) S...Photosensitive material C...Receiver paper 1...Housing 2...Glass plate 6...Reflector 8...Illumination lamp 10...Fiber V
Lens array 12...Sensitive material roll 14...Sensitive material cartridge 16...Outlet 20...Magazine connection dark box 21.22...Sensitive material feeding roller 23...Cutter unit 24...Guide plate 2
6...Exposed sensitive material support roller 28.30...Sensitive material nip roller 32...Exposure position 40...Heat developing device 41
...Developer housing 42...Transport drum 43.
...Heating plate 44.46...Conveyance roller 45.
... Guide member 47 ... Peeling claw 48 ... Shaft 49 ... Spring 50 ... Heat insulating material 51 ... Temperature detector 52 ... Temperature control device 53 ... Switch 5
4... Spring 60... Pressure roller 61.
63... Guide 0 member 62... Conveyance roller 70
...Sensitive material image receiving paper stacking device 72...Receiving paper supply device 73...Image receiving paper cassette 74...Feeding roller 75...Guide member 76
．． 77...Release agent application device 78.79...Peeling claw 80.82...Pressure nip roller 84.86...Backup roller 88...Transfer device 11ffi 90...Sensitivity image receiving paper peeling Device 92... Guide member 94... Feed roller 95... Support member 96... Felt 98
．． 100... Guide roller 102... Peeling belt 104... Sensitive material disposal section 1
06... Fixing device 108... Guide member 11
0.112...Feed roller 114...Disposal box 120...Guide member 122...Reflection member 124...Lamp 12
6.128...Feed roller 130...Nade tray agent Patent attorney (8107) Kiyotaka Sasaki. (3 others) Pa. Figure 2

Claims (1)

[Claims] Using a photosensitive material whose support is coated with a substance that fixes an image produced by imagewise exposure under pressure, the photosensitive material and an image receiving material are superimposed, and the image obtained on the photosensitive material is received. An image recording device that performs pressure transfer onto a material, comprising a release agent application means for applying a release agent onto the peripheral surfaces of a pair of pressure nip rollers, and a peripheral surface downstream of the contact portion of the pressure nip rollers. An image recording device characterized in that a pair of peeling claws are provided, each of which comes into contact with a pair of peeling claws.