JPH01105253A - Peeling device - Google Patents

Abstract

PURPOSE:To prevent jam of a recording material or an image receiving material by providing a peeling claws inserted and provided in an gap of a pair of peeling rollers, on the downstream of said peeling roller and providing a feeding mechanism on the peeling claw. CONSTITUTION:The titled device is provided with a pair of peeling rollers 26 for carrying a recording material A and an image receiving material C, a sensor SW for detecting the recording material A, which is placed in its upstream, and a peeling claw 27 which is placed in the downstream of the peeling rollers 26, and this peeling claw 27 is provided with a roller 28 of a feeding mechanism of the image receiving material and/or the recording material A. In such a state, when the sensor SW detects the tip of the recording material A, the peeling claw 27 starts to operate, set to a position which comes into contact opposingly with a first peeling roller 26 after a prescribed time, and the recording material A and the image receiving material C are peeled off along the upper and the lower faces of the peeling claw, respectively. In such a way, peeling is executed surely and the generation of jam can be prevented.

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention provides an image-forming process in which a recording material and an image-receiving material that have been imagewise exposed are superimposed and transferred, and then both are peeled off to obtain an image on the image-receiving material. The present invention relates to a peeling device in a recording device.

<Prior art and its problems> An image recording method is known in which a recording material and an image-receiving material are imagewise exposed, superimposed and transferred, and then both are peeled off to obtain an image on the image-receiving material.

Recording materials used in such cases include those that utilize microcapsules containing a photosensitive composition; for example, a vinyl compound, a photopolymerization initiator, a photopolymerization initiator,
Also known are those containing a synthetic polymer resin wall capsule containing a coloring agent precursor (Japanese Patent Application Laid-open No. 1983-1999-1).
No. 179836).

The image recording method using this recording material 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. This method has the feature that high quality images can be obtained through simple dry processing. However, this system has lower photosensitivity than systems using silver halide.

A new recording material which has higher photosensitivity and can obtain high quality images through simple dry processing is disclosed in Japanese Patent Laid-Open No. 61-275742. 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 color image-forming substance are encapsulated in the same microphone capsule. It consists of a photosensitive composition.

An image recording method for recording an image using this recording material is disclosed in Japanese Patent Laid-Open No. 61-278849. 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. to obtain an image on an image-receiving material.

Then, using the above-mentioned recording material, this recording material is subjected to imagewise exposure, heat development is performed, and then it is superimposed on an image-receiving material and pressurized, and an image is obtained on the image-receiving material by transfer, which is automatically performed for image recording. The device is disclosed in, for example, Japanese Patent Laid-Open No. 147461/1983.

In this type of apparatus, the recording material and image-receiving material after pressure transfer are separated and then conveyed. The image-receiving material is then transported to a fixing device as required, and the recording material is transported to a waste section.

Further, as a type of recording (photosensitive) material that does not perform transfer by pressure, there is a heat-developable photosensitive material. In this heat-developable photosensitive material, the formed movable dye image is transferred to the image-receiving material by heating, for example, in the presence of an image-forming solvent, thereby forming a dye image on the image-receiving material. In this way, in an image recording device that forms an image on an image-receiving material by transfer, the recording material and image-receiving material after the transfer process are separated, and then the image-receiving material is conveyed to the take-out section, and the recording material is transported to the waste section. transported to.

By the way, in the system that forms an image on an image-receiving material by transfer as described above, a peeling process is necessary.
In order to ensure reliable separation, the recording material is generally larger than the image-receiving material and is made to protrude from the overlapping image-receiving materials.For example, the portions of the recording material that protrude from the image-receiving material on both sides in the conveyance direction are pinched. The recording material and the image-receiving material are then separated by conveying the image-receiving material in a direction different from that of the image-receiving material, and further regulating the conveying direction of the image-receiving material with a guide plate or the like.

However, although both sides of the image-receiving material easily peel off from the recording material, the central portion in the width direction does not easily peel off from the recording material, and the image-receiving material follows the recording material and is not conveyed in a predetermined direction. The problem arises that the material comes into contact with the material and becomes clogged.

Such problems arise when recording an image using the above-mentioned recording material, when the recording material and image-receiving material are overlapped.
This occurs because the recording material and image-receiving material tend to adhere to each other when transfer is performed by applying pressure or in the presence of an image-forming solvent. This is particularly noticeable when gelatin or the like is present as a polymer binder in the recording material.

<Object of the Invention> An object of the present invention is to provide a separation device that can reliably separate a recording material and an image-receiving material after transfer to prevent jamming in an image recording apparatus.

<Brief explanation of the invention> The above objects are achieved by the invention described below.

That is, the present invention relates to a sum device in an image recording apparatus that obtains an image on the image-receiving material by overlapping and transferring a recording material and an image-receiving material that have been imagewise exposed, and then peeling them off. and a peeling pawl inserted downstream of the peeling roller into a gap between the peeling rollers, and conveys the image receiving material and/or recording material to the peeling pawl in cooperation with at least one of the peeling rollers. This is a peeling device characterized by being provided with a feeding mechanism.

<Specific structure of the invention> Hereinafter, a specific configuration of the present invention will be explained in detail.

1 to 3 are front views of a peeling device that peels off a recording material and an image-receiving material that have been imagewise exposed after being superimposed and transferred.

As shown in FIGS. 1 to 3, the peeling device 1 of the present invention includes:
It has a pair of peeling rollers 26 that convey the recording material A and the image receiving material C, a sensor SW that detects the recording material A placed upstream thereof, and a peeling claw 27 placed downstream of the peeling roller 26. This peeling claw 27 is provided with a feeding mechanism for the image receiving material C and/or the recording material A.

As shown in the figure, such a feed mechanism is composed of a feed roller 28 integrated with a peeling claw 27.

As shown in FIG. 4, the feed roller 28 usually divides the tip of the peeling claw 27 in the width direction, and is rotatably installed between the claws 271 at the split ends. .

Then, as shown in FIGS. 1 to 3, the feed roller 2
8 is the part embedded in the peeling claw 27, and the peeling claw 2
A horizontal hole 281 is provided on the base 275 side of 7.

A spring 285 attached to the feed roller 28 is accommodated in this horizontal hole 281. This spring 285 biases the feed roller 28 and transfers the recording material A or the image receiving material C.
This is to reduce the load of movement when the paper is being conveyed onto the feed roller 28 and when it is not.

The feed roller 28 can rotate by coming into contact with the peeling roller 26, but may be driven and rotated separately.

゛ The feed roller 28 has a diameter of about 8 to 10 mm, and is installed at a position of about 8 to 12 mm from the tip of the peeling claw 27.

The above-mentioned feed roller 28 is preferably installed at two locations, one for image-receiving material C and one for recording material A, as shown in the figure.
1 for either image receiving material C or recording material A
It may be installed at any location.

The feed roller 28 may be made of rubber or the like.

The peeling claw 27 separates the recording material A and the image-receiving material C that have been conveyed by the peeling roller 26, and starts operating when the leading edge of the recording material A is detected by the senna SW. The configuration is such that it is set in a position facing the .

Such operation is by means of cylinders, solenoids, etc.

Control in this case is such that the peeling claw 2 is positioned at the predetermined position after the leading edge of the recording material A is detected by the sensor SW.
This is done by storing in advance the transport time until reaching the tip of the pipe.

The above-mentioned position of the peeling claw 27 is preferably set so that the recording material A or the image-receiving material C comes into contact with the feed roller 28 provided on the peeling claw 27 and the peeling roller 26 that is in contact with the feed roller 28 .

The peeling claw 27 has a width approximately equal to that of the recording material A, and its cross-sectional shape narrows from the base toward the tip.

The height of the base is usually about 30 to 40 mm.

An appropriate gap, so-called clearance, is provided between the peeling rollers 26 in relation to the total thickness of the recording material A and the image-receiving material C (usually about 0.2 μm). Such a gap may be provided by forming flanges with a diameter slightly larger than the circumferential surface of the peeling roller at both ends of the peeling roller 26, or when the recording material A or the image receiving material C is conveyed. Alternatively, the peeling rollers 26 may be separated from each other using a contact spring or the like.

A drive source is installed on one of the pair of peeling rollers 26 so that the two rollers rotate synchronously.

The peeling roller 26 has a width approximately equal to that of the recording material A, and a diameter of approximately 18 to 20 mm.

The material of the peeling roller 26 is usually rubber such as chloroprene rubber or ethylene propylene rubber, and the material of the peeling claw 27 is boria-cetal, aluminum, zinc (die-cast), or the like.

The feeding mechanism in the present invention is not limited to the embodiments shown in FIGS. 1 to 3, and as shown in FIG.
For receiving material C, two rollers 283.
It is also possible to use a structure in which a feed belt 287 is wrapped around the feed belt 285 and the feed belt 287 is conveyed.

Further, as shown in FIG. 6, a roller 28 for recording material A
4 and the roller 286 for the image receiving material C, and the feeding belt 288.
Using a sash hanging over the feed belt 288
It may also be configured to transport.

In addition, various configurations may be used.

The material of the roller is rubber, and the material of the feed belt is silicone rubber, Teflon, etc.

In the present invention, it is preferable that the feed mechanism and the peeling claw are integrated, but they may be separate bodies.

FIG. 4 shows the above-mentioned peeling device 1 disclosed in Japanese Patent Application Laid-Open No. 62-20946.
FIG. 1 is a block diagram when the present invention is applied to an image recording apparatus such as that disclosed in Japanese Patent Application Laid-open No. 147481/1983.

Note that this image recording device is disclosed in Japanese Patent Application No. 62-121284.
This method automatically performs the image forming method as shown in the specification of the above patent. In this case, first, imagewise exposure is performed to form a latent image, then development is performed by heating, and the polymerizable compound in the area where the latent image exists is polymerized to generate a polymer compound, thereby forming 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 areas where no latent image is present;
The color image-forming material is transferred to the image-receiving material to obtain an image on the image-receiving material.

The image recording apparatus shown in FIG.
(A), an imagewise exposure section 3 that imagewise exposes the recording material A conveyed from the storage section 2 (A), a thermal development device 6 that heats and develops the imagewise exposed recording material, and a storage section for the image-receiving material C. 2(C)
, a pressure transfer device 7 that performs pressure transfer after superimposing heat-developed recording material A and image-receiving material C; a peeling device 1 of the present invention provided downstream of the pressure transfer device 7; Furthermore, it has a recording material disposal section 8 and a fixing device 9 provided downstream thereof.

In the above embodiment, the image recording apparatus is of a type that requires pressure transfer after heat development, but it may be of a type that does not perform pressure transfer.

Further, in the above embodiment, the fixing device 9 is provided, but it may be selected as appropriate depending on the photographic material used.
Depending on the case, a configuration may be adopted in which the quantitative device 9 is not provided. For example, a post-heating device may be installed to improve image density.

The recording material in the present invention is not particularly limited as long as it is used in combination with an image-receiving material in which an image-receiving layer is provided on a support separate from the recording material.

For example, it is a type in which a polymerizable compound is imagewise cured by imagewise exposure, and then a visible image is obtained by applying pressure. Examples include those carrying synthetic polymer resin wall capsules containing precursors (Japanese Patent Laid-Open No. 57-1
Publication No. 7983).

In addition, after imagewise exposure containing silver halide, heat development is performed to develop the silver halide, the polymerizable compound is simultaneously cured in correspondence with this development, and then pressure is applied to form a visible image. There is a type that obtains the following, and is particularly preferably used in the present invention. In such a method, a color image-forming substance is transferred to an image-receiving material having an image-receiving layer after thermal development to obtain an image on the image-receiving material, and at least photosensitive silver halide, reduced A microcapsule containing an agent, a polymerizable compound, and a color image-forming substance, and at least the polymerizable compound and the color image-forming substance are encapsulated in the same microcapsule (Japanese Patent Laid-Open No. 61-27
Publication No. 8849).

<Specific action of the invention> The operation of the peeling device of the present invention will be explained.

After the transfer, the recording material A and the image receiving material C are carried into the peeling device 1 in a superimposed state, and after the sensor SW detects the leading edge of the recording material A, the peeling claw 27 starts operating, and after a certain period of time, As shown in FIG. 1, it is set at a position facing the gap between the peeling rollers 26. That is, the movement of the cylinder is controlled by storing the transport time from when the leading edge of the recording material A is detected by the sensor SW until it reaches the leading edge of the peeling claw 27 at the set position as the above-mentioned fixed time.

As shown in FIG.
and the peeling row member 26 that is in contact with the peeling row member 26 while being conveyed toward the upper side of the peeling claw 27.

On the other hand, as shown in FIG. 3, the image-receiving material C is conveyed below the peeling claw 27 while being in contact with the feed roller 28 and the peeling roller 26, similarly to the recording material A described above.

The same effect as described above is also achieved by the feeding mechanism of the embodiments shown in FIGS. 5 and 6.

The tip of the peeling claw 27 enters between the recording material A and the image receiving material C, and the recording material A and the image receiving material C are separated from each other by the peeling claw 27.
It is peeled off along the upper and lower surfaces of the sheet and transported as described above.

In this way, in the present invention, the image-receiving material C and the recording material A can be reliably separated by the pushing force between the peeling rollers 26 and the pulling force between the peeling rollers 26 and the feeding rollers 28.

The peeled image-receiving material C is conveyed to a fixing device 9, where the image is fixed using an ultraviolet lamp, a xenon flash lamp, or the like.

Further, the recording material A separated from the image receiving material C is conveyed to the recording material disposal section 8.

<Effects of the Invention> According to the present invention, it is possible to reliably separate the recording material and the image-receiving material after transfer, and it is possible to prevent the recording material or the image-receiving material from jamming in the peeling device. Furthermore, the photosensitive material and image receiving material can be transported reliably after recording.

This effect can be obtained when transferring by pressure transfer, etc.
This is particularly noticeable when the recording material and image-receiving material are superimposed and have strong adhesion.

[Brief explanation of the drawing]

1, 2, and 3 are partial front views showing embodiments of the peeling device of the present invention. FIG. 4 is an enlarged partial plan view showing a peeling claw in the peeling device of the present invention. 5 and 6 are enlarged front views of a peeling claw in a peeling device according to another embodiment of the present invention. FIG. 7 is a block diagram showing an image recording apparatus equipped with the peeling device of the present invention. Explanation of the symbols A...Recording material, C...Image receiving material, 1...Peeling device, 2(A)...Recording material storage section, 2(C)...Image receiving material storage section, 3... Imagewise exposure section, 6... Thermal development device, 7... Pressure transfer device 8... Recording material disposal section, 9... Fixing device, 26... Peeling roller, 27...・Peeling claw, 28...Feed roll, 283.284.285.286...Roller, 287
．． 288...Payment Belt Agent Patent Attorney Yo Ishii −
1'-

Claims (5)

[Claims] (1) A peeling device in an image recording apparatus that obtains an image on the image-receiving material by overlapping and transferring a recording material and an image-receiving material that have been imagewise exposed, and then peeling them both, which comprises a pair of peeling rollers. , a feed mechanism having a peeling claw inserted into the gap between the peeling rollers downstream of the peeling roller, and conveying the image receiving material and/or the recording material to the peeling claws in cooperation with at least one of the peeling rollers. A peeling device characterized by being provided with. (2) The peeling device according to claim 1, wherein the feeding mechanism is a feeding roller or a feeding belt. (3) The peeling device according to claim 1 or 2, wherein the transfer is pressure transfer. (4) The recording material is a photosensitive pressure-sensitive heat-developable material having a photosensitive layer on a support so that an image formed by heat development after imagewise exposure is fixed by pressure. The peeling device according to any one of the ranges 1 to 3. (5) The peeling device according to claim 4, wherein the image of the photosensitive pressure-sensitive heat-developable material is formed by a distribution of microcapsules having different degrees of hardening after the heat development.