JPH1199676A - Method and device for peeling sheet type image forming material, and method and device for collecting the sheet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate good mechanical peeling in a device even when a peeling point for peeling a first sheet from a second sheet is not made beforehand, to prevent occurrence of odor so that the odor which may occur when the first and second sheets are peeled from each other is not maintained even after the needless sheet is collected and to surely collect the needless sheet after the first and second sheets are peeled from each other. SOLUTION: A first sheet 11 and a second sheet 12 are peeled from each other by bending a sheet type image forming material 10 by means of a bending means 43. The sheet 12 to be collected is wound and collected by means of a winding means such that a face to which the other sheet 11 was stuck is to be in the inner side. The sheet 12 to be collected is bonded to the sheet 12' which was peeled to be collected before by means of bonding means 52.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a method for forming a first sheet having a color material layer on a first support, a second sheet having an adhesive layer on a second support, and a color material layer and an adhesive layer. After a latent image is formed on the sheet-like image forming material that has been opposingly bonded, the first sheet and the second sheet are separated from each other. The present invention relates to a sheet collecting method and a sheet collecting device for collecting sheets.

[0002]

2. Description of the Related Art In recent years, in the medical field, high-density energy light (for example, about 3 mm) has been used as a sheet-like image forming material for forming an image of a human body or the like for diagnosis.
Research and development of a sheet-like image forming material that forms an image by melting, deforming, scattering, burning or evaporating and removing (these are called ablation) and heat melting only a portion irradiated with (amount of light of 00000 W / cm ² or more). Is being developed. For example, as described in JP-A-9-106079, this sheet-like image forming material has a first sheet having a color material layer on a first support, and an adhesive layer on a second support. A second sheet is laminated with the color material layer and the adhesive layer facing each other. The sheet-like image forming material is irradiated with high-density energy light to ablate or thermally melt a part of the material. Then, the first sheet and the second sheet are peeled off to form an image on the sheet. This image formation is a so-called dry (dry) process that does not require a treatment liquid such as a chemical.

Further, as an image forming apparatus using such a sheet-like image forming material, there is an image forming apparatus described in Japanese Patent Application Laid-Open No. 8-80624.

[0004]

When such an image is formed, it is necessary to peel off the first sheet and the second sheet as described above, and this peeling is performed mechanically in the apparatus. It is difficult to make a trigger for peeling, especially for peeling. For this reason, in the image forming apparatus disclosed in the above publication, a trigger for peeling is created in advance by providing a cutout in a part of the first sheet or the second sheet.

However, when the trigger is prepared in advance in this way, the mechanical strength of the sheet-like image forming material is partially weakened, and special consideration is required at the time of packaging, transporting, loading, and transporting in the apparatus, which results in cost reduction. Not only does it lead to an increase, but it also reduces reliability. Furthermore, when a trigger is created in advance, it is necessary to increase the size of the sheet-shaped image forming material only in that portion, and the yield of the sheet-shaped image forming material is reduced.

After the first sheet and the second sheet are peeled off, one of the sheets must be collected as an unnecessary sheet. However, the collected sheet may be charged, and may be stored as it is. If it is attempted to collect them, problems tend to occur in terms of transportability and reliability. further,
If unnecessary sheets are collected separately, image information is dissipated, and in the medical field, privacy becomes a serious problem.

Further, when peeled after ablation, odor is generated. If the surface where the first sheet and the second sheet are bonded is exposed and collected, the odor will continue to be emitted after peeling.

[0008] Therefore, even if a trigger is not prepared in advance, good separation can be easily performed mechanically in the apparatus to separate the first sheet and the second sheet, thereby reducing the cost. It is a first task to improve reliability and yield.

It is a second object of the present invention to suppress the generation of the odor generated when the first sheet and the second sheet are peeled off from each other without continuing to emit after the unnecessary sheets are collected.

It is a third object of the present invention to reliably collect unnecessary sheets after the first sheet and the second sheet have been peeled off and to prevent dissipation of image information.

[0011]

A first object of the present invention is to provide a first sheet having a color material layer on a first support and a second sheet having an adhesive layer on a second support. And, for a sheet-like image forming material bonded with the adhesive layer facing each other,
In a method for peeling a sheet-like image forming material from which a first sheet and a second sheet are peeled after forming a latent image, the first sheet and the second sheet are bent by bending the sheet-like image forming material after the latent image is formed. A method of peeling a sheet-like image forming material for peeling off a first sheet having a color material layer on a first support, and a second sheet having an adhesive layer on a second support, And forming a latent image on the sheet-like image forming material bonded with the adhesive layer facing each other, and then forming the latent image on a sheet-like image forming material peeling device that peels off the first sheet and the second sheet. The problem can be solved by a sheet-like image forming material peeling device characterized by having a bending means for peeling the first sheet and the second sheet by bending the subsequent sheet-like image forming material. it can.

That is, by utilizing the difference in curvature between the first sheet and the second sheet caused by bending the sheet-like image forming material, a shear stress is generated on the bonding surface between the first sheet and the second sheet. Peel off.

The second object is to provide a first sheet having a color material layer on a first support, a second sheet having an adhesive layer on a second support, and a color material layer and an adhesive layer. In the sheet collection method of forming a latent image on the sheet-shaped image forming material that is attached to face to face and then separating the first sheet and the second sheet and collecting one of the sheets, A sheet collection method in which the other sheet is collected by winding it up with the surface on which the other sheet is attached to the inside, or a first sheet having a color material layer on a first support.
After forming a latent image on a sheet-like image forming material obtained by laminating a sheet and a second sheet having an adhesive layer on a second support with the color material layer and the adhesive layer facing each other, In a sheet collecting apparatus for separating a sheet and a second sheet and collecting one sheet, the sheet collecting apparatus has a winding means for winding the collected sheet with the surface on which the other sheet is bonded to the inside. Can be solved by the sheet collecting device described above.

That is, the recovered sheet is rolled up and collected with the surface on which the other sheet is bonded facing inward, so that the odor emitting surface of the recovered sheet is sealed and generation of odor is suppressed.

The third object is to provide a first sheet having a color material layer on a first support, a second sheet having an adhesive layer on a second support, and a color material layer and an adhesive layer. In the sheet collection method of forming a latent image on the sheet-shaped image forming material that is attached to face to face and then separating the first sheet and the second sheet and collecting one of the sheets, A sheet collection method, wherein the first sheet has a color material layer on a first support, and an adhesive layer is formed on a second support. After forming a latent image on a sheet-like image forming material obtained by laminating a second sheet having a color material layer and an adhesive layer facing each other, the first sheet and the second sheet are peeled off. In the sheet collection device that collects sheets of A sheet collecting device, comprising: a supporting means for supporting the sheet; and a joining means for joining the recovered sheet to the previously separated and recovered sheet supported by the supporting means. Can be.

That is, the sheet to be recovered is joined to the previously peeled and recovered sheet and recovered, so that the transportability for recovery is improved, and the recovery can be reliably performed. Can be improved, and further, the dissipation of image information can be prevented.

[0017]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

First, the sheet-like image forming material 10 will be described with reference to FIG. 1, which is a diagram showing the sheet-like image forming material. The sheet-like image forming material 10 does not form an image with daylight such as sunlight or fluorescent light, but forms an image with high-density energy light (for example, light amount (energy) of about 300,000 W / cm ² or more). Is formed.
In the present embodiment, the sheet-shaped image forming material 10
First sheet 11 having color material layer 112 on support 111
And a second sheet 12 having an adhesive layer 122 on a second support 121, with the color material layer 112 and the adhesive layer 122 facing each other.

The sheet-like image forming material 10 will be described in more detail.

The first support 111 is a transparent (light-transmitting light of an exposure light source) support such as a resin film, and has a thickness of about 10 to 500 μm, preferably 25 to 2 μm.
50 μm.

The color material layer 112 may be a laminate of a light-to-heat conversion layer and a colorant layer, or a plurality of each of them. Further, a single colorant layer may be used. As the colorant contained in the color material layer 112, any colorant can be used without particular limitation as long as it can cause ablation by exposure (reduce the bonding force between the support and the image forming layer). Among them, in order to efficiently reduce the bonding strength between the support of the exposed portion and the image forming layer and to provide image legibility, a photothermal conversion material and
It is preferable to use a substance having absorption in a wavelength range of from about 800 nm to the colorant. Further, in the case of a substance having an absorption in a wavelength range of 300 to 800 nm and which can also act as a light-to-heat conversion substance, only a substance which also serves as a light-to-heat conversion substance may be used as a coloring agent. The content of the coloring agent contained in the coloring material layer 112 is 10
About 99% by weight, preferably 30 to 95% by weight, and the color material layer 112 has a thickness of 0.05 to 5.0 μm.
m, preferably in the range of 0.1 to 3.0 μm.

The second support 121 is a support such as a resin film, and need not be transparent, and may be opaque. Further, a foam type containing air bubbles may be used in order to have a followability to the first support 111 and a cushioning property for absorbing irregularities on the surface of the rotary drum holding the support. The thickness of the second support 121 is about 5 to 100 μm, preferably 10 to 80 μm.

The adhesive layer 122 may be any one having adhesiveness or tackiness at room temperature itself, or one exhibiting adhesiveness or tackiness by applying heat or pressure. For example, a resin having a low softening point, It can be formed by appropriately selecting a property imparting agent and a thermal solvent. The thickness of the adhesive layer 122 is about 0.1 to 40 μm, preferably 0.3 to 30 μm.
μm.

Then, the first sheet 11 and the second sheet 12
Can be performed by pressing or heating and pressing. The pressurizing or heat-pressing treatment can be used without particular limitation as long as it can pressurize or heat pressurize without adhering air bubbles or the like without mixing. When heat and pressure treatment is performed on a stamper or a stamper, a thermal head, a heat roll, a hot stamp, or the like can be used.

The second sheet 12 may be provided directly on the color material layer 112 by using a self-supporting resin by a method such as coating or hot melt extrusion.

In the present embodiment, the first sheet 11 and the second sheet 12 have the same size so as to completely overlap each other (when viewed from above in FIG. 1). This is a sheet-like image forming material 10 that has not been formed.

Next, a process of forming an image on the sheet-like image forming material 10 will be briefly described with reference to FIG. 2 which is a schematic sectional view of the image forming apparatus.

The sheet-like image forming material 10 is placed in the cassette 2
1, a plurality of sheets are placed and stored in a stacked state. The sheet-like image forming material 10 placed on the cassette 21 is separated one by one and sent out by a suction cup 25 serving as a sending means. The fed sheet-like image forming material 10 is conveyed to a rotating drum 27 as a sheet holding unit by a conveying roller (no reference numeral). In the rotating drum 27, a gripper 27 serving as a sheet holding member
By 1, the leading end of the sheet-like image forming material 10 is held. Then, the sheet-shaped image forming material 10 is rotated by the rotation of the rotating drum 27 (clockwise in FIG. 2) and the sliding contact roller 28 which slides on the rotating drum 27 and rotates.
Is tightly held on the peripheral surface of the rotating drum 27. At this time, the sheet-shaped image forming material 10 is
Is held on the outer peripheral surface side of the second support 121. This is because light irradiation is performed from the first support 111 side in the present embodiment.

Light (laser light) emitted from a laser 30 serving as an exposing means is applied to the sheet-like image forming material 10 held by the rotating drum 27 from the first support 111 side to form a latent image. Form. By irradiating the light, the first support 111 and the color material layer 1 in the irradiated portion are irradiated.
12 is reduced or eliminated, or a part of the coloring material layer 112 is thermally broken and scattered, or the coloring material layer 1 is dispersed.
Ablation occurs, for example, a crack is formed in 12. The laser 30 may be a light source that can emit high-density energy light, that is, light that causes ablation in a light irradiation part.

When the exposure onto the sheet-like image forming material 10 is completed, the rotating drum 27 rotates in the reverse direction (counterclockwise in FIG. 2), and is separated from the rotating drum 27 by separating means such as a separating claw (not shown). The forming material 10 is separated and conveyed by conveying means such as conveying rollers (no reference numeral). At this time, the sheet-like image forming material 10 held by the gripper 271 is separated and conveyed such that the end portion is on the rear end side.

The conveyed sheet-like image forming material 10 is
The first sheet 11 and the second sheet 12 are peeled by the peeling device 40 (this will be described in detail later). By this peeling, the portion irradiated with the light of the laser 30 is transferred to the second sheet 12, and the first sheet 1
On the first support 111, the unexposed color material layer 112 is formed.
, The image is formed. When the first sheet 11 is peeled, the first sheet 11 is placed on a paper ejection tray outside the machine (no symbol).
The second sheet 12 is collected by the collection device 50, and is used as a sheet that has been discharged above and has an image formed thereon.

The collecting device 50 winds up the second sheet 12 peeled off by the peeling device 40 with the surface on which the first sheet 11 has been bonded inward by a roll 51 as a winding means. to recover. Thereby, the odor emitting surface of the second sheet can be sealed, and the generation of odor can be suppressed. As will be described in detail later, the rear end of the collected second sheet 12 is left on the second support surface 412 of the support means 41 so that the heater 52 can join the rear end of the second sheet 12 to be collected next. It has become.

As described above, in the image forming apparatus of the present embodiment, after exposing the sheet-like image forming material 10 to high-density energy light to cause the color material layer 112 to undergo ablation, 1st sheet 11 and 2nd sheet 1
2 is peeled off to form an image on the first sheet 11. In this embodiment, the first sheet 11 is used as an image-formed sheet, and the second sheet 12 is used as a discarded sheet.

Next, the peeling device 40 for peeling the first sheet 11 and the second sheet 12 will be described with reference to FIG. 3, which is a schematic perspective view of the peeling device 40.

The support means 41 has a first support surface 411 and a second support surface 412. This first support surface 411
Nip and support the sheet-like image forming material 10 to be peeled off with the roller 42. The second support surface 412 supports the rear end of the previously recovered second sheet 12 ′ (indicated by a dashed line) and supports the second sheet 12 when the sheet-like image forming material 10 is peeled off by the peeling claw 45. The second sheet 12, 12 ′ is supported when the rear end of the second sheet 12 ′ previously collected by the heater 52 is joined to the front end of the second sheet 12 to be collected.

The roller 42 sandwiches and supports the sheet-like image forming material 10 with the first support surface 411 of the supporting means 41, and is driven by driving means (not shown) to convey the sheet-like image forming material 10. It is driven to rotate. The roller 42 prevents the sheet-like image forming material 10 from being lifted during the bending operation of the sheet-like image forming material 10 by the block 43 or the peeling of the second sheet 12 by the ironing member 44 and the peeling claw 45. It also functions as a means for preventing floating.

Block 43 is a sheet-like image forming material 1
0, the first sheet 11 and the second sheet 12 are bent.
And a bending means for peeling off. In the present embodiment, the first
It is a member that bends the corner of the sheet-like image forming material 10 held between the support surface 411 and the roller 42, and is provided so as to be able to reciprocate in a direction A by a driving unit (not shown).

The ironing member 44 is separating means for separating the sheet-like image forming material 10 from which the corners have been peeled off by the block 43 into a first sheet 11 and a second sheet 12, and a driving means (not shown) in the B direction. Is provided so as to be swingable. The ironing member 44 has an uneven surface on one surface thereof so that the corner of the sheet-like image forming material 10 sandwiched between the first support surface 411 and the roller 42 can be ironed during the swinging. It has become.

The peeling claw 45 is a peeling member for peeling one end of the sheet-like image forming material 10 from the corner of the sheet-like image forming material 10 peeled off by the block 43 and the first sheet 11 and the second sheet 12. It is. This peeling nail 45
The first sheet 11 and the second sheet 12 are separated from the corners of the sheet-like image forming material 10 separated by the ironing member 44.
In the present embodiment, it is provided so as to be movable by a moving means (not shown) in the direction C so as to pass through the space.

The heater 52 is a joining means for joining the rear end of the previously collected second sheet 12 ′ supported on the second support surface 412 and the front end of the second sheet 12 to be collected. In the present embodiment, the peeling claw 45 can be integrally moved in the C direction, and can be joined while being peeled, thereby shortening the cycle time and simplifying the mechanism and the like. Further, in the present embodiment, the heater 52 is joined by applying heat to the second sheets 12, 12 ', and has a cylindrical shape, and is rotated by the movement, It can be joined smoothly.

Next, FIGS. 4 to 4 are diagrams schematically showing the movement of the peeling device 40 for the peeling of the first sheet 11 and the second sheet 12 and the joining of the previously recovered second sheet 12 '. 6 will be described.

First, as described above, the rear end of the previously recovered second sheet 12 'is supported on the second support surface 412 of the support means 41. Then, the sheet-like image forming material 10 exposed by the laser 30 is
, Is nipped by the first support surface 411 and the roller 42, further transported by the roller 42,
The conveyance by the roller 42 is stopped at a position where the leading end of the sheet-like image forming material 10 protrudes from the first support surface 411 (FIG. 4A).

At this time, the sheet-like image forming material 10
The portion protruding from the support surface 411 is to be a non-image area of the sheet-like image forming material 10. As described above, the non-image area is projected because, in the present embodiment in which a trigger for peeling is first created and then peeling is performed at a stretch, the peeling is temporarily interrupted, and the streak generated at the interrupted position affects the image. In order not to affect In general, the non-image area refers to a black edge portion called a black border provided around (peripheral portion) of a sheet to be diagnosed in a sheet-shaped image forming material in the medical field (usually, this black area). The border is 5-10 mm in size).

After such a state, the block 43
Is moved in the direction indicated by the arrow in FIG. Then, by the movement of the block 43, the corners of the sheet-like image forming material 10 protruding from the first support surface 411 are bent (the first sheet 11 and the second sheet 12 are integrated) (FIG. 4B). )). Therefore, the sheet-like image forming material 1
By utilizing the difference in curvature between the first sheet and the second sheet caused by bending 0, a shear stress is generated on the bonding surface between the first sheet and the second sheet, and the corner of the sheet-like image forming material 10 is formed. The part is peeled off. In particular, in the present embodiment, of the thickness of the first sheet 11 and the thickness of the second sheet 12, the thin sheet (the second sheet 12) is bent inward, so that the reliability of peeling is further increased. be able to.

Then, the block 43 is further moved to release the state where the sheet-like image forming material 10 is bent, and the stiffness of the sheet-like image forming material 10 causes the sheet-like image forming material 10 to move as shown in FIG. Until it stands.
Then, the block 43 is moved in the direction indicated by the arrow, and this time, the sheet-like image forming material 10 is bent in the direction opposite to the previously bent direction (FIG. 4D), and the block 43 is moved to the initial position. Return to the position (FIG. 4 (e)). After bending the sheet-like image forming material 10 (FIG. 4 (b)), bending the sheet-like image forming material 10 in the opposite direction (FIG. 4 (d))
Even if the tip of the corner is not completely peeled off by the previous bending, but is peeled off partway while leaving the tip, the tip of the corner is surely peeled off.

Here, the peeling due to the bending will be described in detail with reference to FIG. As shown in FIG. 5B, when the block 43 is moved, the sheet-like image forming material 10 becomes θ.
Subject to bending. At this time, the lengths of the bent portions of the first sheet 11 and the second sheet 12 are originally the same, but since the sheets 11 and 12 have the thicknesses, the respective bent portions Is R ₁ θ,
R ₂ θ. In the present embodiment, since the second sheet 12 is thinner, as a result, (R ₁ −
R ₂ ). When the block 43 is further moved to increase the bending of the sheet-like image forming material 10, the compressive stress of the second sheet 12 becomes larger than the adhesive force between the first sheet 11 and the second sheet 12, and The second sheet 12 is deformed and peels off (the state shown in FIG. 5C).

As described above, in the present embodiment, the structure in which the second sheet 12 having a small thickness is bent inward is used from the viewpoint of peeling of the first sheet 11 and the second sheet 12. This is because it is preferable. Specifically, suppose that
When bent to the opposite side (with the second sheet 12 facing outward), there is a difference in the length of the bent portion as described above. In this case, however, a tensile stress is applied to the second sheet 12. Therefore, when the second sheet 12 is set inside, the peeling can be caused by the compression + deformation of the second sheet 12, but when the second sheet 12 is set outside, only the tension of the second sheet 12 is caused ( Peeling is less likely to occur. Therefore, first, it is effective to bend the second sheet 12 having a small thickness inward, and to perform peeling.

The first sheet 1 is bent by bending the sheet-like image forming material 10 accompanying the movement of the block 43.
1 and the end portions of the second sheet 12 (a to b in FIG. 5C).
Although (c) may be peeled off, only a part ((b) to (c) in FIG. 5 (c)) may be peeled off due to the relationship of the adhesive force. For such a case, in the present embodiment, the block 43 is moved in the direction opposite to the previous movement direction, and the sheet-like image forming material 10 is bent in the direction opposite to the previously bent direction. (FIG. 5D).
In this case, it is considered that a tensile stress is applied to the second sheet 12 and peeling is unlikely to occur as described above. However, the first sheet 11 and the second sheet 12 are adhered to each other in FIG. Therefore, peeling can be sufficiently performed.

As a result of intensive studies by the present inventors, the thickness of the first sheet 11 is 150 μm to 200 μm, and the thickness of the second sheet 12 is 20 μm to 40 μm.
Adhesive force between sheet 11 and second sheet 12 is 5 g / cm or more
25 g / cm (measurement of adhesive strength was measured by peeling 1c
When the strip-shaped sheet-shaped image forming material 10 having the width of m is fixed to the first sheet 11 and the second sheet 12 is slowly peeled off from the first sheet 11 in the normal direction of the sheet-shaped image forming material 10. In the sheet-like image forming material 10 of which the force is measured with a spring), the first support surface 411 is used.
The distance a from the block 43 to the block 43 is 2 mm to 5 mm,
The distance (projected length) b from the support surface 411 to the leading end of the sheet-like image forming material 10 is 3 mm to 12 mm (of course, the condition of b> a is satisfied), and the moving speed of the block 43 is 5 mm / s to 50 mm. / S, good peeling could be performed.

Thus, the sheet-like image forming material 1
When the 0 corner is peeled off, the ironing member 44 continues.
Is moved in the direction indicated by the arrow in FIG. 4E, and the corners of the sheet-like image forming material 10 are drawn (FIG. 4F). When the ironing member 44 is further moved, the first sheet 11 comes off from the ironing member 44 due to the stiffness of the first sheet 11, and only the second sheet 12 comes into engagement with the ironing member 44,
The peeled corner first sheet 11 and the second sheet are surely separated (FIG. 4G). FIG. 6A is a view from above the separation device 40 at this time.

When the first sheet 11 and the second sheet at the corners of the sheet-like image forming material 10 are separated, the peeling claw 45 is started to move in the direction of the arrow (FIG. 6A). The peeling claw 45 passes between the first sheet 11 and the second sheet 12, and peels off one end side (the end side protruding from the first support surface 411) including the corner of the sheet-like image forming material 10 (FIG. 6).
(B)). Further, as the peeling claw 45 continues to move, the heater 52 moving integrally with the peeling claw 45 joins the second sheet 12 and the previously recovered second sheet 12 'by the heat (FIG. 6 ( c)). As described above, since the bonding is performed while peeling, the cycle time can be reduced and the mechanism can be simplified. In particular, in the present embodiment, the heater 5 is used.
2 is a rotating structure, so that the peeling by the peeling claw 45 and the joining by the heater 52 can be performed continuously without stopping the movement, and the cycle time can be further reduced.

Then, the first sheet 11 and the second sheet 12
When the peeling of the second sheet 12 and the joining of the second sheet 12 'and the previously collected second sheet 12' are completed (FIG. 6D), the roller 4
2 is driven to feed out the sheet-like image forming material 10, and the first sheet 11 and the second sheet 1 are fed by a pair of rollers (without reference numerals) provided downstream of the peeling device 40.
The first sheet 11 and the second sheet 12 are peeled over the entire surface of the sheet-like image forming material 10 by nipping and conveying the second sheet 2 (or the second sheet 12 ′ collected earlier). Then, the peeled first sheet 11 is discharged onto a discharge tray (no reference numeral) outside the apparatus, and the second sheet 12 is wound up by the roll 51 of the collection device 50 as described above.

As described above, in the present embodiment, the first sheet 11 is bent by bending the sheet-like image forming material 10.
And the second sheet 12 can be peeled off, so that even if a trigger has not been created in advance for the peeling, good peeling can be easily performed mechanically in the apparatus, and as a result, cost reduction, The reliability and the yield can be increased. In the present embodiment, the reciprocating block 43 is used as the bending means. However, the present invention is not limited to this. For example, the sheet-like image forming material 10 may be bent by using a roller to follow the peripheral surface thereof. It is good. Further, in the present embodiment, one end side of the sheet-like image forming material 10 was peeled off (a trigger for peeling was created).
After that, the entire surface is peeled off. However, as shown in FIG. 7A, the sheet-like image forming material 10 is passed between the pair of rollers 61 and 62, so that the entire surface of the sheet-like image forming material 10 is covered. The sheet may be peeled off by applying a bend. Further, as shown in FIG. 7B, a bend is formed between the two pairs of rollers 63 and 64 to bend the entire surface of the sheet-like image forming material 10. It may be applied and peeled off.

By the way, the present inventor has shown FIGS. 7 (a) and 7 (b).
As a result of diligent examination of the peeling as shown in FIG.
Has a thickness of 150 μm to 200 μm, the thickness of the second sheet 12 is 20 μm to 40 μm, and the adhesive force between the first sheet 11 and the second sheet 12 is 5 g / cm to 25 g / cm.
In the sheet-like image forming material 10 (the measurement of the adhesive force is the same as described above), the radius of curvature r of the deformation shown in FIG. 7 is set to 4 mm or less, and the conveying speed of the sheet-like image forming material 10 is set to 50 mm / s. When peeling was performed at a speed of from 100 mm / s, good peeling could be performed.

Further, in the present embodiment, the first sheet 1
By bending the thinner sheet (the second sheet 12) side of the first and second sheets 12 inside, the reliability of peeling can be increased. Further, in the present embodiment, since the sheet-like image forming material 10 is bent in a direction opposite to the previously bent direction, the sheet-like image forming material 10 can be reliably peeled. Further, in the present embodiment, by bending the non-image area of the sheet-like image forming material 10, it is possible to suppress the image quality deterioration due to the generation of the streaks. Furthermore, in the present embodiment, the corners of the sheet-shaped image forming material 10 are configured to be bent, so that the force required for bending can be suppressed, and cost reduction and simplification of the apparatus can be achieved.
The invention is not limited thereto, and the block 43 may be extended in the width direction (the C direction in FIG. 3), and the entire width of one end of the sheet-shaped image forming material 10 may be bent at one time.

In the present embodiment, after the corners of the sheet-like image forming material 10 are bent, the peeling claws 45 are passed between the first sheet 11 and the second sheet 12 to include the corners. Although one end side of the sheet-like image forming material 10 is peeled off, the present invention is not limited to this.
3 can be moved in the direction C in FIG. 3 by moving means, and one end side of the sheet-like image forming material 10 is sequentially bent, but the force required for bending can be suppressed, and the cost of the apparatus can be reduced. And simplification.

Further, in the present embodiment, when the second sheet 12, which is an unnecessary sheet after the separation, is collected, the second sheet 12 is collected by removing the surface on which the first sheet 11 has been bonded to the inside. The odor emitting surface of the sheet 12 is sealed, and generation of odor can be suppressed. In the present embodiment, the second sheet 12 'is bonded to the second sheet 12' that has been peeled off and collected, and the second sheet is collected. Therefore, the transportability for collection is improved, and the collection is reliably performed. In addition, reliability can be improved, and dissipation of image information can be prevented. Furthermore, the structure of the collection can be simplified, and the cost can be reduced. In addition, in the present embodiment, the second sheet 12 'and the second sheet 12 previously collected are joined while the edge of the sheet-like image forming material 10 is peeled off by the peeling claw 45. The time can be reduced and the mechanism can be simplified.

In this embodiment, the separation is performed by using the ironing member 44 as the separation means. However, the present invention is not limited to this. For example, separation using a suction cup or separation using a roller that rotates in the reverse direction may be performed. May go.

[0059]

As described in detail above, according to the present invention,
In order to peel off the first sheet and the second sheet, good peeling is easily performed mechanically in the apparatus even if no trigger is created in advance, and thus cost reduction,
The reliability and the yield can be increased. Alternatively, the odor generated when the first sheet and the second sheet are peeled off does not continue to be released even after the unnecessary sheet is collected, so that the generation of the odor can be suppressed. Alternatively, the unnecessary sheet after the first sheet and the second sheet have been peeled off can be reliably collected, and the dissipation of the image information remaining on the unnecessary sheet can be prevented.

[Brief description of the drawings]

FIG. 1 is a view showing a sheet-like image forming material.

FIG. 2 is a schematic sectional view of the image forming apparatus.

FIG. 3 is a schematic perspective view of a peeling device.

FIG. 4 is a diagram schematically showing the movement of a peeling device.

FIG. 5 is a diagram schematically illustrating peeling of a sheet-like image forming material due to bending.

FIG. 6 is a diagram schematically showing the movement of a peeling device.

FIG. 7 is a view showing a modification of the bending means.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Sheet-shaped image forming material 11 1st sheet 12 2nd sheet 40 Peeling device 41 Support means 42 Roller 43 Block (bending means) 44 Ironing member 45 Peeling claw (peeling member) 50 Collection device 51 Roll (winding means) 52 Heater (Joining means)

──────────────────────────────────────────────────の Continued on the front page (51) Int.Cl. ⁶ Identification code FI G03F 7/36 B41M 5/26 Z

Claims (22)

[Claims] 1. A first sheet having a color material layer on a first support, and a second sheet having an adhesive layer on a second support,
A method for peeling a sheet-like image forming material, which forms a latent image on a sheet-like image forming material in which a color material layer and an adhesive layer are bonded to each other and then peels off a first sheet and a second sheet, A method for separating a sheet-like image forming material, wherein the first sheet and the second sheet are separated by bending the sheet-like image forming material after the formation of the latent image. 2. The method according to claim 1, wherein the first sheet and the second sheet are bent such that a thinner sheet is inward of the first sheet.
The method according to claim 1, wherein the sheet and the second sheet are separated. 3. The method according to claim 1, wherein the first sheet and the second sheet are separated by bending the sheet-like image forming material in a direction opposite to the bending direction. 3. The method for peeling a sheet-like image forming material according to item 2. 4. The method for peeling a sheet-like image forming material according to claim 1, wherein the non-image area of the sheet-like image forming material is bent. 5. The method for peeling a sheet-like image forming material according to claim 1, wherein the corners of the sheet-like image forming material are bent. 6. The sheet-like image forming material according to claim 5, wherein after bending a corner of the sheet-like image forming material, one end side of the sheet-like image forming material including the corner is sequentially bent. Peeling method. 7. One end of a sheet-like image forming material including a corner by passing a peeling member between the first sheet and the second sheet peeled by bending a corner of the sheet-like image forming material. The method for peeling a sheet-like image forming material according to claim 5, wherein 8. A first sheet having a color material layer on a first support and a second sheet having an adhesive layer on a second support.
In a sheet-like image forming material peeling device for peeling a first sheet and a second sheet after forming a latent image on a sheet-like image forming material in which a color material layer and an adhesive layer are attached to each other, A peeling device for a sheet-like image forming material, comprising a bending means for bending the sheet-like image forming material after the formation of the latent image to peel off the first sheet and the second sheet. 9. The sheet-form image forming material peeling apparatus according to claim 8, wherein the bending unit bends the thinner one of the first sheet thickness and the second sheet thickness inside. . 10. The sheet-like image forming material according to claim 8, wherein the bending unit bends the sheet-like image forming material, and then bends in a direction opposite to the bending direction. Peeling device. 11. The image forming apparatus according to claim 8, wherein the bending unit bends a non-image area of the sheet-like image forming material.
0. The peeling device for a sheet-like image forming material according to any one of 0. 12. The apparatus according to claim 8, wherein the bending unit bends a corner of the sheet-shaped image forming material. 13. The peeling device moves the bending means from a corner of the sheet-like image forming material bent by the bending means to an opposite corner along an end of the sheet-like image forming material. A moving unit, wherein bending by the bending unit bends a corner of the sheet-shaped image forming material, and moving the bending unit by the moving unit, so that one end side of the sheet-shaped image forming material including the corner is 13. The peeling device for a sheet-like image forming material according to claim 12, wherein the sheet-like image forming material is sequentially bent. 14. The peeling device, wherein the bending unit passes between the first sheet and the second sheet peeled by bending a corner of the sheet-like image forming material,
13. The peeling device for a sheet-like image forming material according to claim 12, further comprising a peeling member for peeling off one end side of the sheet-like image forming material including the corner. 15. A first sheet having a color material layer on a first support and a second sheet having an adhesive layer on a second support are laminated with the color material layer and the adhesive layer facing each other. After a latent image is formed on a sheet-like image forming material, the first sheet and the second sheet are separated, and in the sheet collection method of collecting one sheet, the sheet to be collected is bonded to the other sheet. A sheet collecting method, wherein the sheet is collected by winding the sheet with the surface on the inside facing inward. 16. A first sheet having a color material layer on a first support and a second sheet having an adhesive layer on a second support are bonded with the color material layer and the adhesive layer facing each other. After forming a latent image on a sheet-like image forming material, the first sheet and the second sheet are separated, and in the sheet collection method of collecting one sheet, the sheet to be collected is first peeled and collected. A sheet collecting method, wherein the sheet is collected by bonding to a sheet. 17. The sheet collecting method according to claim 16, wherein the sheet to be recovered is peeled off and joined to the recovered and recovered sheet. 18. The sheet collecting method according to claim 16, wherein the peeled sheet is collected by winding up with the surface on which the other sheet has been bonded facing inside. 19. A first sheet having a color material layer on a first support and a second sheet having an adhesive layer on a second support are laminated with the color material layer and the adhesive layer facing each other. After forming a latent image on the sheet-like image forming material, the first sheet and the second sheet are peeled off, and the sheet to be collected is bonded to the other sheet in a sheet collecting apparatus for collecting one sheet. A sheet collecting device, comprising: a winding means for winding the sheet with its surface being set inside. 20. A first sheet having a color material layer on a first support and a second sheet having an adhesive layer on a second support are laminated with the color material layer and the adhesive layer facing each other. After a latent image is formed on the sheet-like image forming material, the first sheet and the second sheet are peeled off, and a sheet recovery apparatus that recovers one of the sheets supports the previously peeled and recovered sheet. A sheet collecting apparatus comprising: a supporting unit; and a joining unit that joins a sheet to be collected to a sheet that has been peeled off and collected earlier and is supported by the supporting unit. 21. The sheet collecting apparatus, wherein one end of the sheet-like image forming material including the corner is peeled by passing the sheet-like image forming material between the first sheet and the second sheet from the corner. A peeling member, and a moving unit that integrally moves the joining unit and the peeling member along one end side of the sheet-shaped image forming material. The first sheet and the second sheet are separated by the peeling member. 21. The sheet collecting apparatus according to claim 20, wherein a sheet to be recovered by the bonding unit is peeled first and bonded to the recovered sheet while peeling the sheet. 22. Winding means for winding the sheet joined by the joining means with the surface on which the other sheet is stuck on the inner side.
22. The sheet collecting apparatus according to 0 or 21.