JPH10307368A - Recording sheet package - Google Patents

Abstract

PROBLEM TO BE SOLVED: To easily supply recording material to an image recorder, to hold it under specified humidity environment even while supplying and to stably record a high-quality image without irregularity by providing a packaging body having a port for taking out heat developable photosensitive material or photosensitive and heat sensitive recording material, and humidity controlling agent or drying agent in the packaging body. SOLUTION: In this package 80; a case 82 being a housing made of resin such as polypropylene and having an upper surface where a sheet takeout port 81 is formed at one part is used as the packaging body. The package 80 is constituted by housing the bundle of specified number of the recording materials A in the case 82 with the recording surface downward, and the humidity controlling agent 86 is stuck and fixed on the upper surface of the case 82. By such constitution, the recording materials A are kept at specified humidity by the agent 86 stuck to the case 82 not only in a non-use state where it is housed in a moistureproof bag 88 but also after it is housed in a magazine, so that the sensitivity fluctuation of the recording materials A caused by humidity change is extremely restrained and the high-quality image is stably recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention belongs to the technical field of a sheet package containing a recording material used for image recording in a dry system such as an image recording using a dry recording material which is not subjected to a wet process. More specifically, the present invention belongs to the technical field of a sheet package containing a recording material, which performs image recording using at least one laser beam and subsequent thermal development, or image recording using a laser beam heat mode and subsequent optical fixing.

[0002]

2. Description of the Related Art Conventionally, as an image recording apparatus for recording a medical image such as a digital radiography system, CT, MR, etc., using a heat storage phosphor sheet, an image is recorded on a silver halide photographic photosensitive material. A wet system for obtaining a reproduced image by wet processing is used. In contrast,
In recent years, a recording apparatus using a dry system that does not perform wet processing has attracted attention. As such a recording apparatus, a photosensitive and / or heat-sensitive recording material (photosensitive and heat-sensitive recording material) and a heat-developable photosensitive material have been used. An image recording apparatus using a film (hereinafter, referred to as a recording film) has been proposed. However, since high quality is required for medical images, the film has high sensitivity in order to improve the quality of the film, and the fluctuation of the sensitivity due to the change in humidity is a serious problem.

[0003] When a recording film having humidity dependency is handled in the same manner as usual, the recording film absorbs and releases moisture with the lapse of time. It becomes difficult to record high quality images. For example, if a recording film is cut and transferred to a magazine and used only for a small number of sheets, and if not used for about one week, a change in sensitivity due to a change in humidity occurs, so even when reproducing the same image, There is a problem that the density of the film output after one week may be considerably different from that of the film output one week later.

In order to solve such a problem, it is conceivable to first improve the characteristics of the recording film. However, a recording film capable of recording at a stable density regardless of the level of humidity is technically manufactured. Is difficult. In addition, by measuring the humidity of the atmosphere in the apparatus and correcting the exposure amount to the recording film according to the fluctuation of the humidity based on the measurement result, it is possible to perform image recording at a stable density on the recording film. Is also conceivable. However, it is the moisture content in the recording film that directly contributes to the density fluctuation of the recorded image, and this moisture content is affected by the humidity history to which the film has been exposed. It is difficult to make an accurate correction considering the moisture content in the film only by measuring the humidity. For this reason, it is necessary to handle the recording film in a state where it is kept moist under predetermined conditions as much as possible.

[0005] On the other hand, when the recording film is formed into a laminate (bundle) and stored at a high humidity, the outer peripheral portion of the laminated film is apt to be humid, whereas the inside of the laminated film is less so. It is difficult for moisture to enter. For this reason, even in one film, there is a problem that the moisture content distribution occurs, the density of the recorded image fluctuates at each location, and the recorded image becomes uneven. Furthermore, when the humidity is high as described above, there is a problem that the raw preservability of the recording film is deteriorated.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to solve the above-mentioned problems of the prior art, and it is an object of the present invention to appropriately maintain a photothermographic material or a photothermographic material under a predetermined humidity environment. Moreover, these materials can be easily supplied to the image recording apparatus without directly touching them, and even after being supplied to the apparatus, they can be maintained in a predetermined humidity environment and have high quality without unevenness. An object of the present invention is to provide a sheet package that enables stable image recording.

Further, even when an image is recorded after the photothermographic material or the photothermographic material has been stored for a long time in a laminated state, the density unevenness in one recording material can be eliminated. It is also an object to improve the raw preservability of these recording materials.

[0008]

According to the present invention, there is provided a photothermographic material or photothermographic recording material containing a laminate of a photothermographic material or a photothermographic recording material. A recording sheet package comprising: a package having an outlet; and a humidity control agent or a desiccant fixed to the package.

Here, the photothermographic material has a support formed in the form of a sheet, and an image forming layer provided on the support.
% Or more is preferably a layer composed of latex and containing an organic silver salt and an organic silver salt reducing agent.

[0010] The light and heat sensitive recording material has a support formed in a sheet shape and a light and heat sensitive recording layer provided on the support, and the light and heat sensitive recording layer is made of heat-responsive microcapsules. A layer containing an electron-donating colorless dye encapsulated in, and, outside of the thermoresponsive microcapsules, a compound having an electron-accepting portion and a polymerizable vinyl monomer portion in the same molecule, and a photopolymerization initiator, Or, a layer containing an electron-donating colorless dye encapsulated in the thermoresponsive microcapsules, and an electron accepting compound, a polymerizable vinyl monomer, and a photopolymerization initiator, in addition to the thermoresponsive microcapsules. Is preferred.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, a seat package according to the present invention will be described in detail based on preferred embodiments shown in the accompanying drawings.

FIG. 1 is a schematic diagram of an image recording apparatus using the sheet package of the present invention. The image recording apparatus 10 (hereinafter, referred to as a recording apparatus 10) shown in FIG. This is an apparatus for obtaining a visible image by performing thermal development after forming a latent image by imagewise exposing the recording material A by scanning exposure with the light beam L.
When a light and heat sensitive recording material is used, an image may be recorded in a heat mode (heat) of a laser beam, and then light irradiation may be performed. Such a recording device 1
Reference numeral 0 basically includes a recording material supply unit 12, a width adjustment unit 14, an image exposure unit 16, and a heat development unit 18 in the order of conveyance direction of the recording material A.

As a recording material used in such a recording apparatus and applied to the sheet package of the present invention, a photothermographic material or a photothermographic material is used. The photothermographic material is a recording material in which an image is recorded (exposed) by at least one light beam such as a laser beam, and then thermally developed to develop a color. On the other hand, the light and heat sensitive recording material records (exposes) an image with at least one light beam such as a laser beam, and then develops the color by heat development, or uses a heat mode (heat) of a laser beam or a thermal head. This is a recording material that records an image, develops color at the same time, and then fixes by light irradiation. Details of these recording materials will be described later.

Such a recording material is usually formed as a sheet-shaped recording material A into a laminate (bundle) of a predetermined unit of 100 sheets or the like, and is packaged in a bag or a band to form a package.

FIG. 2 is a schematic perspective view of a package 80 of the present invention. The package 80 in the illustrated example is a casing made of a resin such as polypropylene or a cardboard or the like, and a case 82 in which a sheet outlet 81 is formed on a part of the upper surface is used as a package. The bundle of A is stored with the recording surface facing down, and a humidity control agent 86 is attached and fixed to the upper surface of the case 82. In addition,
The humidity control agent 86 may be wrapped and fixed with a dust-free material as necessary. The package 80 is hermetically sealed and stored in the moisture-proof bag 88 when not in use.
2 is taken out of the moisture-proof bag 88, and as shown in FIGS.
The magazine 100 is supplied to the recording device 10 by being loaded into the supply unit 12 of the recording device 10.

The humidity control agent 86 has a property of absorbing moisture when the humidity is high and humidifying the humidity when the humidity is low to keep the humidity of the environment constant. The humidity control agent 86 is made of an inorganic powder such as sodium aluminate silicate. As such a humidity conditioner 86, various commercially available products can be used.
For example, a humidifier commercially available under the trade name of SHC Paper from Tokushu Paper Manufacturing is preferably used.

In the present invention, a desiccant such as silica gel, activated alumina, or synthetic zeolite may be used in place of the humidity control agent 86.

According to such a package 80 of the present invention, the recording material A is adhered to the case 82 not only when it is not used in the moisture-proof bag 88 but also after it is stored in the magazine 100. Since the humidity is maintained at a predetermined level by the humidity control agent 86, the fluctuation of the sensitivity of the recording material A due to a change in humidity is extremely small, and high-quality image recording can be stably performed. In addition, since the case 82 is stored in the magazine 100, it is easy to store the recording material A and the humidity control agent 86 in the magazine 100 together without the operator directly touching the recording material A. It can be stored, and the adverse effect on image recording due to the attachment of hand oil or the like can be prevented. Furthermore, if the inside of the package 80 is maintained at a low humidity, even if the recording material A is stored as a laminate (bundle) and stored for a long time, the laminated recording, It is possible to prevent a moisture-containing distribution from being generated between the outer peripheral portion of the material A and the inside of the laminated recording material where moisture does not easily enter, and it is also possible to eliminate density unevenness in one recording material A. In addition, the raw preservability of the recording material A can be improved.

The humidity maintained by the humidity control agent 82 is not particularly limited, and may be appropriately determined in accordance with the characteristics of the recording material A. It is also preferable because the improvement of the thickness can be achieved. In addition, the SH
In the case of C paper, the holding humidity can be adjusted by exposing and adapting to the target humidity, so that the holding humidity may be appropriately set according to the characteristics of the recording material A.

In the illustrated package 80, a humidity control 86
Is attached to the upper surface of the case 82, but the present invention is not limited to this, and the humidity control agent 86 may be attached to the inner surface.
However, since the humidity control agent 86 generally adjusts the humidity from an area close to the user, the humidity control agent 86 is arranged in an area separated from the recording material A, such as the upper surface of the case 82, and the recording material A is directly touched. It is preferable that the recording material A is not provided because all the recording materials A contained in the package 80 can be maintained at a uniform humidity.

Although the package 80 in the illustrated example has a case 82, the present invention is not limited to this.
Alternatively, the humidity control agent 86 may be stuck and fixed on the inner surface using the moisture-proof bag 92 as a package, and the moisture-proof bag 92 may be housed in the magazine 100 together. In this case, for example,
As shown in FIG. 3B, a portion other than the humidity control agent 86 of the moisture-proof bag 92 may be cut out at the time of use to form an outlet for the recording material A, and the moisture-proof bag 92 may be stored in the magazine 100 together. Alternatively, as shown in FIG. 3C, an outlet (window) for the recording material A is formed in the moisture-proof bag 92 and closed with a sealing material 94 made of an adhesive tape or the like. And the moisture-proof bag 92 may be stored in the magazine 100. Further, the package of the present invention may be housed in a moisture-proof box instead of a moisture-proof bag, and may be a package as in the embodiment shown in FIG.

The package 80 in the illustrated example is taken out of the moisture-proof bag 88 at the time of use, and can be loaded into and removed from the loading sections 22 and 24 of the supply section 12 of the recording apparatus 10.
0, and the magazine 100 is supplied to the recording device 10 by being loaded into the supply unit 12. The package 9 having no case 82 and having the form shown in FIG.
In the case of 0, the humidity control agent 86 is stored in the magazine 100 together with the moisture-proof bag 88 stuck on the inner surface as described above.

FIG. 4 is a schematic sectional view of the magazine 100. The illustrated magazine 100 is provided with the above-described package 80.
Or 90 is accommodated, and has a moisture-proof structure in the opening and closing part. Such a magazine in the illustrated example accommodates the package 80 described above and
Is loaded horizontally with the lid side up. The removal of the recording material is performed by opening the cover by the cover opening mechanism of the recording apparatus 10, taking out the recording material by the sheet-feeding mechanism, and closing the cover by the cover opening mechanism.

Therefore, by applying the illustrated magazine, the lid is opened only when the recording material is taken out,
At other times, the lid is closed, and the contact portions are all provided with a moisture-proof structure, so that the moisture-proof property in the magazine is ensured. As a result, a change in sensitivity due to moisture of the recording film or the like in the package 80 can be further suppressed, and a density error between the initially output film and the film output after a certain period of time can be further suppressed.

FIG. 5 is an exploded sectional view of the magazine shown in FIG. 4, and FIGS. 6A and 6B are sectional views showing different states of use of the magazine shown in FIG. 4, respectively.

The magazine 100 shown in FIG. 4 is for storing a package 80 in which recording materials A are stacked and stored. Box 10 whose upper part is open from the longitudinal end to remove the
2 and a rectangular lid 104 for opening and closing the open portion of the housing 102.

The lid 104 has concave engaging portions 104a at both ends of one side, and the housing 102 has an open portion from one side of the upper surface corresponding to the concave shape of the engaging portion 104a of the lid 104. And has two engaging portions 102c protruding from the front. Lid 10
4 are provided on both side ends of the engaging portion 104a and the side end of the engaging portion 102c of the housing 102 facing the engaging portion 104a. A hole to be inserted is provided. It is rotated in the direction of arrow a in FIG. The means for engaging the lid 104 with the housing 102 is not limited to the above-described one.
As long as the lid 104 can be opened and closed with respect to the housing 102, a known means such as a hinge may be used.

Engagement pieces 106 are formed on the lid 104 so as to extend on both longitudinal sides of the housing 102. The engagement piece 106 is used for opening and closing the cover 104 of the magazine 100 by a cover opening mechanism (not shown) when the magazine 100 is loaded in a thermal image recording apparatus described later. The engagement piece 106 has a hole 106a with which the cover opening member of the cover opening mechanism is engaged.

The housing 102 and the lid 104 are formed from various known materials such as various resins and metals such as aluminum. In addition, the housing 102 and the lid 104 may be configured separately from each other, or the lid 104 may be configured to be openable and closable by being integrally formed of resin or the like.

As shown in FIG. 5, the housing 102 is preferably composed of an upper case 102a and a lower case 102b which can be detached from each other, since the housing of the package 80 is easy. Is also good.

As shown in FIG. 5, the package 80 is stored in the magazine 100 as shown in FIG.
, And the recording layer is directed downward, and the lower case 10
2b and closed by closing the upper case 102a. When the housing 102 is of a vertically integrated type, the lid 1
04 is opened, and the recording material is stored from the open portion.

As shown in FIGS. 5, 6 (a) and 6 (b), the abutting portion of the magazine 100 is provided with a moisture proof structure using sponges and projections and a magnet attraction mechanism using magnets and sheet metal. . First, FIG. 5 shows a state where the upper case 102a is removed. here,
A sponge 108 is provided all around the contact portion of the lower case 102b.
And a magnet 112 are fixed, and a protrusion 11
0 is provided, and the sheet metal 114 is fixed. Therefore, by closing the upper case 102a and the lower case 102b in combination, the projection 110 presses the sponge 108 to form a moisture-proof structure, so that the waterproofness and airtightness at the contact portion are ensured. Further, the sheet metal 114 of the magnet 112 constituting the magnet attracting mechanism
The protrusion 110 presses the sponge 108 strongly and evenly by the suction force against
The airtightness is further enhanced, and the upper case 102
a can be prevented from being inadvertently opened.

FIG. 6A shows a state in which the lid 104 is opened. Here, a sponge 108 and a magnet 112 are fixed on the entire periphery of the contact portion of the lid 104, and a projection 110 is provided on the entire periphery of the contact portion of the upper case 102a that contacts the lid 104, and The sheet metal 114 is fixed. Here, as described above, the sponge 10
8 and the protrusion 110 constitute a moisture-proof structure, and the magnet 11
2 and the sheet metal 114 constitute a magnet attracting mechanism. Therefore, as shown in FIG. 6B, when the lid 104 is closed, the same action as when the upper case 102a is closed is performed. In addition, airtightness is ensured, and the inadvertent opening of the lid 104 can be prevented by the suction mechanism.

The arrangement of the sponge 108, the protrusion 110, the magnet 112, and the sheet metal 114 at the abutting portions is not limited to the illustrated example.
And the protrusion 110, and the magnet 112 and the metal plate 114 may be arranged in any manner as long as they can be brought into contact with each other. Further, the magnet attracting mechanism may be one in which magnets are fixed to both contact portions.

Further, the sponge 108 and the magnet 11
There is no particular limitation on the fixation of the sheet metal 2 and the sheet metal 114 to the abutting portion, and the fixation may be performed using an adhesive or an adhesive tape, or using a screw or a screw. In particular, the sponge 108 is easily stretched, and when it is stretched, the airtightness is reduced.
Is preferably adhered to the abutting portion of the lid 104 and the lower case 102b using a double-sided tape made of a polyester-based material, whereby the sponge can be prevented from extending.

The sponge 108 may be made of any foaming elastic material having a water stopping property and airtightness.
In particular, urethane foam is preferred because it is particularly excellent in waterproofness and airtightness. Specific examples include a flexible polyurethane foam (trade name: Maltoprene SH, manufactured by Inoac Corporation). Further, an elastic material such as rubber may be used. The magnet 112 may be a commonly used one.

In the illustrated example, the opening / closing portion has a structure in which the projection 110 presses the sponge 108 by the attraction force of the magnet 112. However, the present invention is not limited to this. It may be configured to be used.

As shown in FIG. 6 (a), the single wafer is sucked by the suction cup 2 of the single wafer mechanism with the lid 104 opened.
6 and 28 are performed by sucking and adsorbing the recording material A.
At this time, in order to prevent a plurality of sheets, it is preferable to have a plurality of sheets prevention mechanism using a projection 118 on the inner surface of the upper case 102a near the contact portion with the lid 104.
When the recording material A absorbs the recording material A and rises, the leading end of the film collides with the protrusion 118, thereby dropping the recording material adhering to the recording material adsorbed by the suction cups 26 and 28 and removing a plurality of sheets. To prevent. Alternatively, a brush or a brush having unevenness on the inner surface may be used.

Further, a rib 1 is provided on the inner side surface of the housing 102.
03, and when the remaining number of recording materials A becomes 0, the suction pressure of the suction cup 40 does not reach the predetermined suction pressure, so that it is possible to detect that the recording material A is not in the magazine. ing.

As described above, the illustrated magazine 1
According to 00, by having the moisture-proof structure, the airtightness and the moisture-proofness in the magazine 100 and thus in the package 80 can be further ensured. The change in sensitivity due to moisture is small, and the density error between the initially output film and the film output after a certain period of time can be suppressed within a certain range. Therefore, when used in combination with the sheet package of the present invention, high-quality image recording can be performed more stably. Furthermore, the use of the magnet eliminates the need for a special lock release mechanism on the side of the device that uses the magazine, and unlike the latch, can evenly crush the entire periphery of the sponge. And moisture-proof properties are ensured. In addition, by arranging the sponge and the magnet separately, it is possible to make the height of the magazine constant.

In this way, the recording material A is stacked and stored in the package 80, and is further stored in the dedicated magazine 1
00 and supplied to the recording device 10. The recording material supply unit 12 (hereinafter, referred to as a supply unit 12) takes out one recording material A from the magazine 100, and
A part to be supplied to the width approaching part 14 located downstream (hereinafter, referred to as downstream) in the transport direction of
Single-wafer means using suction cups 26 and 28 arranged in each loading section, supply roller pairs 30 and 32, transport roller pairs 34 and 36, transport guides 38, 40 and 4
2 is provided.

The loading sections 22 and 24 are sections for loading the magazine 100 containing the recording material A at a predetermined position. The recording apparatus 10 in the illustrated example has two loading sections 22 and 24, and both loading sections usually have different sizes (for example, a half-cut size for CT or MRI, and an FCR).
(B4 size for Fuji Computed Radiography, etc.) A magazine 100 containing a recording material A is loaded. The sheet feeding means disposed in each loading section sucks and holds the recording material A by the suction cups 26 and 28, and conveys the recording material A by moving the suction cups 26 and 28 by a known moving means such as a link mechanism. Are supplied to supply roller pairs 30 and 32 disposed in the respective loading sections. The recording material A supplied to the supply roller pair 30
The conveyance roller pair 34 is guided by 8, 40 and 42.
On the other hand, the recording material A supplied to the supply roller pair 32 by the transport rollers 36 is transported by the transport roller pairs 36 to the downstream width adjuster 14 while being guided by the transport guides 40 and 42.

The width shifter 14 aligns the recording material A in a direction perpendicular to the conveying direction (hereinafter, referred to as a width direction), so that the recording material A in the main scanning direction in the downstream image exposure unit 16 is aligned. This is a position where the recording material A is conveyed to the downstream image exposure unit 16 by the conveyance roller pair 44 after alignment, that is, so-called side registration is taken. Width adjuster 14
There is no particular limitation on the method of the side resist in the above. For example, there is a resist plate for positioning by contacting one end face in the width direction of the recording material A, and the recording material A is pushed in the width direction to move the end face to the resist plate. A method using a pressing means for abutting,
A method using a resist plate and a guide plate or the like that is movable in accordance with the size of the recording material A in the width direction, such that the conveyance direction of the recording material A is regulated in the width direction and is similarly brought into contact with the resist plate, Various known methods are exemplified.

The image exposing section 16 (hereinafter, referred to as the exposing section 16) is a portion for imagewise exposing the recording material A by light beam scanning exposure.
8 is provided.

FIG. 7 is a conceptual diagram of the exposure unit 16. The exposure unit 46 includes a light beam L modulated according to a recorded image.
Is a known light beam scanning device that deflects light in a main scanning direction (a direction perpendicular to the paper surface in FIGS. 1 and 7) and enters a predetermined recording position X, according to the spectral sensitivity characteristics of the recording material A. A light source 50 for emitting a light beam L in a narrow wavelength band;
0, a recording control device 52 for driving a zero, a polygon mirror 54 as an optical deflector, an fθ lens 56, and a falling mirror 58. In addition, the exposure unit 46 includes a known light beam scanning device such as a collimator lens or a beam expander for shaping the light beam L emitted from the light source, a surface tilt correction optical system, or a mirror for adjusting an optical path. Various members to be arranged are arranged as needed.

The image recording method of the present invention performs image recording by pulse width modulation, and the recording apparatus 10 in the illustrated example performs image recording by pulse width modulation. The recording control device 52 drives the light source 50 with pulse width modulation according to the recording image, and emits a light beam L pulse-modulated according to the recording image. Light beam L emitted from light source 50
Is deflected in the main scanning direction by the polygon mirror 54, is dimmed so that an image is formed at the recording position X by the fθ lens 56, and is incident on the recording position X after the optical path is changed by the falling mirror 58. The recording device 1 in the illustrated example
Reference numeral 0 denotes an apparatus for recording a monochrome image.
6 has only one light source 50. When the present invention is used for recording a color image, for example, R
An exposure unit having three types of light sources that emit light beams having wavelengths corresponding to the spectral sensitivity characteristics of (red), G (green), and B (blue) is used.

On the other hand, the sub-scanning conveyance means 48
A pair of transport rollers 60 arranged with the (scanning line) interposed therebetween
The recording material A is conveyed in the sub-scanning direction (the direction of arrow a in FIG. 7) orthogonal to the main scanning direction while holding the recording material A at the recording position X by the conveying roller pairs 60 and 62. Here, as described above, since the light beam L pulse-width-modulated according to the recorded image is deflected in the main scanning direction, the recording material A is two-dimensionally scanned and exposed by the light beam to form a latent image. Is recorded.

Although the recording apparatus 10 in the illustrated example is an apparatus that performs pulse width modulation by directly modulating the light source 50, the present invention is also applicable to an apparatus that performs pulse number modulation. Any device that performs pulse modulation can be used as an indirect modulation device using an external modulator such as an AOM (acoustic engineering modulator). Further, in the above-described recording apparatus, image recording is performed by pulse width modulation, but image recording may be performed by analog intensity modulation.

The recording material A on which the latent image has been recorded in the exposing section 16 is then conveyed by conveying roller pairs 64 and 66 and the like, and conveyed to the heat developing section 18. The thermal developing section 18 is a part that performs thermal development by heating the recording material A to convert a latent image into a visible image, and includes a heating drum 68, an endless belt 70, and a peeling claw 72. Is done.

The heating drum 68 is a drum having a built-in heating light source such as a halogen lamp and a heat source such as a heater. The surface of the heating drum 68 is heated and held at a temperature corresponding to the heat development temperature of the recording material A. The recording material A is pinched and conveyed together with the endless belt 70 by rotating about the shaft 68a. In addition,
The temperature of the heating drum 68 is, for example, 100 ° C. when a first recording material described later is used as the recording material A.
To 140 ° C., and 85 ° C. to 150 ° C. when the second and third recording materials described later are used. Further, the heat development time may be adjusted by changing the conveying speed according to the type of the recording material A. For example, the heat development time is about 10 seconds to 90 seconds for the first recording material, and about 3 seconds to 60 seconds for the second and third recording materials.

The endless belt 70 has rollers 74a,
It is stretched around four rollers 74b, 74c and 74d and is pressed so as to be wound around the heating drum 68. The peeling claw 72 applies the recording material A to the heating drum 68.
The recording material A is conveyed by the heating drum 68, and the recording material A is lightly contacted with and separated from the heating drum 68.

The recording material A conveyed to the thermal developing section 18 by the conveying roller pair 66 is nipped and conveyed by an endless belt 70 and rollers 76 and 78, and conveyed between the heating drum 68 and the endless belt 70. While being conveyed in accordance with the rotation of the heating drum 68, the latent image recorded by exposure is thermally developed by the heating drum 68 and becomes a visible image. When the leading end of the recording material A is conveyed to the vicinity of the peeling claw 72, the peeling claw 72 lightly comes into contact with the heating drum 68 and penetrates between the heating drum 68 and the recording material A. Peel from 68.

The recording material A peeled off from the heating drum 68 by the peeling claw 72 after the completion of the heat development is conveyed out of the apparatus and discharged to the tray 80.

The sheet package of the present invention and the magazine and recording apparatus to which the sheet package is applied have been described above in detail. Sheets of the light and heat sensitive recording material are stacked and accommodated.

As the recording material used in the sheet package of the present invention, the heat-developable photosensitive material or the light- and heat-sensitive recording material as described above can be used. It is preferably exemplified.

One of them is a photothermographic material having, on one surface of a support, an image forming layer in which 50% or more of a binder is composed of latex and contains an organic silver salt and a reducing agent for an organic silver salt. (Hereinafter, referred to as a first recording material). When exposed to light, a photocatalyst such as photosensitive silver halide forms a latent image nucleus in the heat-source image photosensitive material, and when heated, the silver of the organic silver salt ionized by the action of the reducing agent moves. Then, it combines with the photosensitive silver halide to form crystalline silver and forms an image.

The organic silver salt contained in the image forming layer of this photothermographic material (hereinafter referred to as a recording material) is relatively stable to light, but is exposed to an exposed photocatalyst (photosensitive silver halide). And a silver salt that forms a silver image when heated to 80 ° C. or higher in the presence of a reducing agent, and may be desalted as required. Such organic silver salts include silver salts of organic acids, preferably having 1 carbon atom.
Examples thereof include a silver salt of a long-chain fatty carboxylic acid of 0 to 30 and a complex of an organic or inorganic silver salt whose ligand has a complex stability constant of 4.0 to 10.0, and specifically, silver behenate. , Silver arachidate, silver stearate, silver oleate, silver laurate, silver caproate, silver myristate, silver palmitate, silver maleate, silver fumarate, silver tartrate, silver linoleate, silver butyrate, silver camphorate Etc. are exemplified.

Further, as the organic silver salt, a silver salt of a compound containing a mercapto group or a thione group and derivatives thereof can be preferably used, and specifically, 3-mercapto-4-phenyl-1,2,3 Silver salt of 4,4-triazole, 2
Silver salts of thioglycolic acid, such as silver salts of mercaptobenzimidazole, silver salts of 2-mercapto-5-aminothiadiazole, silver salts of S-alkylthioglycolic acid,
Silver salt of dithiocarboxylic acid such as silver salt of dithioacetic acid, silver salt of thioamide, silver salt of 5-carboxyl-1-methyl-2-phenyl-4-thiopyridine, silver salt of mercaptotriazine, and silver salt of 2-mercaptobenzoxazole Silver salts and the like are exemplified.

As the shape of such an organic silver salt, a needle-like crystal having a short axis and a long axis is preferable, and specifically, a short axis of 0.01 μm to 0.20 μm and a long axis of 0.10 μm to 5.0 μm.
0 μm is more preferred. Further, the organic silver salt is preferably monodispersed, and specifically, the standard deviation of the length of each of the minor axis and major axis is divided by the minor axis and major axis to be 100, respectively.
The fraction is preferably 100% or less.

Such an organic silver salt is used to obtain polyacrylic acid,
It is preferable to use a known dispersant such as polyvinyl alcohol and polyvinylpyrrolidone to obtain a solid fine particle dispersion. The dispersion of the organic silver salt into solid fine particles may be performed by a known mechanical fine particle dispersion method using a ball mill, a vibration ball mill, or the like in the presence of a dispersant. In addition to the mechanical dispersion method, the particles may be roughly dispersed in a solvent by controlling the pH, and then the pH may be changed in the presence of a dispersing agent to form fine particles.

The amount of the organic silver salt is 0.1 to 5 g in terms of silver.
/ L is preferable, and more preferably 1 to 3 g / l.

The reducing agent for reducing such an organic silver salt is as follows:
Any substance that reduces silver ions to metallic silver can be used, and is preferably an organic substance, and is disclosed in Japanese Patent Application No. 57-82829.
Nos., JP-A-6-3793, etc., U.S. Pat.
Various known reducing agents used in recording materials utilizing organic silver salts, such as those disclosed in JP-A-464738, can be used. Specifically, amide oximes such as phenylamide oxime; azines such as 4-hydroxy-3,5-dimethoxybenzaldehyde azine; hydroxamic acids such as phenylhydroxamic acid; α such as ethyl-α-cyano-2-methylphenyl acetate -Cyanophenylacetic acid derivative; 2,2'-dihydroxy-1,
Bis-β-naphthol such as 1′-binaphthyl; 3-
5-pyrazolones such as methyl-1-phenyl-5-pyrazolone; reductones such as dimethylaminohexose reductone; sulfonamide phenol reducing agents such as 2,6-dichloro-4-benzenesulfonamidophenol; 2,2-dimethyl Chromans such as -7-t-butyl-6-hydroxychroman; 1,4-dihydropyridines such as 2,6-dimethoxy-3,5-dicarbethoxy-1,4-dihydropyridine; bis (2-hydroxy-3- t-butyl-5-methylphenyl) methane, 2,2-bis (4-hydroxy-3-methylphenyl) propane, 4,4-ethylidene-bis (2-t-butyl-6-methylphenol), 1, 1-bis (2-hydroxy-3,5-dimethylphenyl) -3,5,5-
Bisphenols such as trimethylhexane and 2,2-bis (3,5-dimethyl-4-hydroxyphenyl) propane; ascorbic acid derivatives such as 1-ascorbyl palmitate; chromanol (such as tocopherol)
And the like. In particular, bisphenol and chromanol are preferably used. In addition, phenidone,
Known photographic developers such as hydroquinone and catechol are also preferably used, and a hindered phenol reducing agent is particularly preferable.

The reducing agent may be added in the form of a solution, a powder, a solid fine particle dispersion or the like. The dispersion of the solid fine particles is carried out by a known finer means (ball mill, vibrating ball mill, etc.). When dispersing the solid fine particles, a dispersing aid may be used. The amount of the reducing agent is determined by the amount of silver 1 on the surface having the image forming layer.
It is preferably about 5 to 50 mol% based on mol. The reducing agent is
Basically, it is added to the image forming layer, but may be another layer on the side having the image forming layer. In this case, it is preferable to use a relatively large amount of 10 to 50 mol% with respect to 1 mol of silver.
Further, the reducing agent may be a so-called precursor which is derivatized so as to have a function effectively only during development.

The image forming layer of the recording material contains a substance that becomes a photocatalyst upon exposure, for example, photosensitive silver halide (hereinafter, referred to as silver halide). The halogen composition of the silver halide is not limited, and may be any of silver chloride, silver chlorobromide, silver bromide, silver iodobromide, silver iodochlorobromide, and silver iodide. And silver iodobromide are preferably used. The grain size of these silver halides is preferably 0.20 μm or less in order to suppress clouding after image formation,
Particularly, cubic grains and tabular grains are preferred.

The silver halide grains include rhodium, rhenium, ruthenium, osnium, iridium, cobalt,
It is preferable that at least one complex of a metal selected from mercury or iron is contained in an amount of about 1 nmol to 10 mmol per 1 mol of silver. These metal complexes are disclosed in
It is described in detail in, for example, Japanese Patent No. 22549. The phase containing the metal complex in the silver halide may be uniform or may be contained at a high concentration in the core portion or the shell portion, and there is no particular limitation.

The silver halide grains are preferably chemically sensitized. The method of chemical sensitization is not particularly limited, and examples thereof include a sulfur sensitization method, a selenium sensitization method, a tellurium sensitization method using diacyl tellurides and bis (oxycarbonyl) tellurides, a chloroauric acid and potassium Noble metal sensitization using chloroaurate or the like, reduction sensitization using ascorbic acid, thiourea dioxide, or the like, sulfur sensitization, selenium sensitization, tellurium sensitization, and the like are exemplified. Further, a method of ripening the emulsion while maintaining the pH of the emulsion at 7 or more or a pAg of 8.3 or less, and a reduction sensitization by a method of introducing a single addition portion of silver ion during grain formation can also be used.

The use amount of such silver halide is preferably 0.01 mol to 0.5 mol per 1 mol of the organic silver salt. When the silver halide and the organic silver salt were separately prepared, the mixing method and the mixing conditions of the both were determined by using a high-speed stirrer, a ball mill, a sand mill, a colloid mill, a vibration mill And a method of mixing with a homogenizer or the like, or a method of preparing an organic silver salt by mixing silver halide prepared at any timing during the preparation of the organic silver salt. As a method for adjusting silver halide and mixing it with an organic silver salt, a so-called halide method in which a part of silver of an organic silver salt is halogenated with an organic or inorganic halide is also preferably used. Examples of the organic halide used here include N-halogenoimides such as N-bromosuccinimide, and quaternary nitrogen compounds such as tetrabutylammonium bromide. Examples of the inorganic halogen compounds include lithium bromide and potassium iodide. Examples thereof include alkali metal halides, ammonium halides such as ammonium bromide, alkaline earth metal halides such as calcium bromide, and halogen molecules such as bromine and iodine. The amount of halide to be added at the time of validation is 1 mm as halogen atom per 1 mol of organic silver salt.
ol to 500 mmol are preferred.

In this recording material, the image forming layer having such a composition comprises a latex comprising a water-insoluble hydrophobic polymer dispersed as fine particles in a water-soluble dispersion medium in an amount of 50% by weight or more of the total binder. contains. Alternatively, if necessary, other layers may have the same configuration. As the dispersion state of the latex, the polymer is emulsified in a dispersion medium, emulsion-polymerized, micelle-dispersed, or partially hydrophilic in the polymer molecule and the molecular chain itself is a molecule. Any of those dispersed in a state may be used. The latex may be a so-called core / shell type latex other than a latex having a normal uniform structure. For such latexes, see "Synthetic Resin Emulsion (edited by Hira Okuda and Hiroshi Inagaki, published by Polymer Publishing Association (1978))", "Applications of Synthetic Latex (Takaaki Sugimura, Yasuo Kataoka, Soichi Suzuki, Keiji Kasahara, edited by Keiji Kasahara) Publishing Association (1993)), and "Synthesis of Synthetic Latex (Souichi Muroi, Published by the Society of Polymer Publishing (1970))" and the like.

Examples of such latex polymers include acrylic resins, vinyl acetate resins, polyester resins, polyurethane resins, rubber resins, vinyl chloride resins,
Examples include vinylidene chloride resin and polyolefin resin. The polymer may be a linear polymer or a branched polymer, and may be crosslinked. Further, the polymer may be a so-called homopolymer in which a single monomer is polymerized, or a copolymer in which two or more monomers are polymerized. In the case of a copolymer, it may be a random copolymer or a block copolymer. The molecular weight of the polymer is 5000 to 1,000,000 in number average molecular weight, preferably 10,000 to 10
About 0000 is preferable. If the molecular weight is too small, the mechanical strength of the photosensitive layer is insufficient, and if it is too large, the film-forming properties are poor, which is not preferable.

Specific examples of such a polymer include methyl methacrylate / ethyl acrylate / methacrylic acid copolymer, methyl methacrylate / 2-ethylhexyl acrylate / styrene / acrylic acid copolymer,
Styrene / butadiene / acrylic acid copolymer, styrene / butadiene / divinylbenzene / methacrylic acid copolymer, methyl methacrylate / vinyl chloride / acrylic acid copolymer, vinylidene chloride / ethyl acrylate /
Acrylonitrile / methacrylic acid copolymer and the like are exemplified. Various commercial products can also be used as the polymer. For example, as the acrylic resin, Sebian A-4635 manufactured by Daicel Chemical Industries, Ltd., and as the polyester resin, FINETEX ES650 manufactured by Dainippon Ink and Chemicals, Inc.
As a polyurethane resin, HYDRAN AP10 manufactured by Dainippon Ink and Chemicals, a rubber-based resin such as LACSTAR 7310K manufactured by Dainippon Ink and Chemicals, and a vinyl chloride resin such as G351 manufactured by Zeon Corporation of Japan. As the vinylidene chloride resin, L502 or the like manufactured by Asahi Kasei Kogyo Co., Ltd. is exemplified, and as the polyolefin resin, Chemipearl S120 or the like manufactured by Mitsui Petrochemical Co., Ltd. is exemplified. These polymers may be used alone or as a blend of two or more as necessary.

The average particle size of the dispersed particles in the latex is 1 to
The range is preferably 50,000 nm, more preferably about 5 to 1,000 nm. There is no particular limitation on the particle size distribution of the dispersed particles, and a material having a wide particle size distribution or a material having a monodispersed particle size distribution may be used. Minimum film formation temperature of latex (MF
T) is −30 ° C. to 90 ° C., more preferably 0 ° C. to 70 ° C.
Is preferred.

In the image forming layer of the recording material, as described above, it is preferable that 50% by weight or more of the total binder is latex, and that 70% by weight or more is latex. If necessary, a hydrophilic polymer such as gelatin, polyvinyl alcohol, methylcellulose, hydroxypropylcellulose, carboxymethylcellulose, or hydroxypropylmethylcellulose may be added to the image forming layer in a range of 50% by weight or less of the total binder. good. The amount of these hydrophilic polymers to be added is preferably 30% by weight or less of the total binder in the photosensitive layer. Further, it is preferable that the latex dispersed particles (polymer) have an equilibrium moisture content at 25 ° C. and 60% RH of 2% by weight or less, more preferably 1% by weight or less.

For the purpose of improving the optical density, an additive known as a toning agent is preferably added to the image forming layer of the recording material or another layer on the same side as the image forming layer, preferably in an amount of 0.1 to 1 mol / mol of silver. About 1 mol% to 50 mol% may be contained. The toning agent may be a precursor that is derivatized so as to have a function effectively only during development. As the color toning agent, various known ones used for recording materials can be used, and specifically, phthalimide compounds such as phthalimide and N-hydroxyphthalimide; cyclic imides such as succinimide and pyrazolin-5-one; Naphthalimides such as -hydroxy-1,8-naphthalimide;
Cobalt complexes such as cobalt hexamine trifluoroacetate; mercaptans such as 3-mercapto-1,2,4-triazole and 2,4-dimercaptopyrimidine;
Examples thereof include phthalazinone derivatives such as 4- (1-naphthyl) phthalazinone and metal salts thereof, and are added to a coating solution as a solution, a powder, a solid fine particle dispersion, or the like.

In the recording material having such an image forming layer, if necessary, a sensitizing dye may be added to the image recording layer and / or another layer, preferably 10 to 10 mol per mol of silver halide in the image forming layer. ^{-6 to 1} mol may be contained. When adsorbed on silver halide grains as a sensitizing dye,
Any material can be used as long as it can spectrally sensitize silver halide grains in a desired wavelength region, for example, a cyanine dye, a merocyanine dye, a complex cyanine dye,
Complex merocyanine dyes, holo-holer cyanine dyes, styryl dyes, hemicyanine dyes, oxonol dyes, hemioxonol dyes and the like can be used,
A sensitizing dye having a spectral sensitivity suitable for the spectral characteristics of the recording light L may be selected. To add the sensitizing dyes to the silver halide emulsion, they may be dispersed directly in the emulsion, or may be dispersed in water, methanol, ethanol, N, N-
It may be added to the emulsion by dissolving it in a single or mixed solvent such as dimethylformamide.

The image recording layer and / or other layers of the recording material contain an antifoggant, a stabilizer and a stabilizer precursor for the purpose of preventing additional fogging and a decrease in sensitivity during storage. You may. Examples of antifoggants, stabilizers and stabilizer precursors include thiazonium salts described in U.S. Pat. No. 2,131,038 and U.S. Pat.
Azaindene described in US Pat. No. 6,437, etc., mercury salts described in US Pat. No. 2,728,663, and urazole described in US Pat. No. 3,287,135. Further, as an antifoggant, JP-A-50-11
Organic halides disclosed in JP-A-9624 and JP-A-8-15809 are also preferably used. The antifoggant and the like may be added to the coating solution as a solution, a powder, a solid fine particle dispersion or the like.

The image recording layer and / or other layers of this recording material may contain benzoic acids for the purpose of increasing the sensitivity and preventing fog. As the benzoic acids, various benzoic acid derivatives can be used. Preferred examples thereof include U.S. Pat. No. 4,787,939 and Japanese Patent Application No. 8-151242.
Compounds described in the specifications of the above-mentioned publications are added to the coating liquid as a powder, a solution, or a fine particle dispersion. Any amount of benzoic acid may be added,
It is preferably about 1 μmol to 2 mol per l.

The image-recording layer and / or other layers of the recording material may contain a mercapto compound, a cis-sulfide compound, It may contain a thione compound. When a mercapto compound is used, any structure may be used, but Ar-SM, Ar-SS-
Those represented by Ar are preferable (wherein M is a hydrogen atom or an alkali metal atom, and Ar is an aromatic ring or a condensed aromatic ring having at least one of nitrogen, sulfur, oxygen, selenium, and tellurium). Specifically, 2-mercaptobenzimidazole, 2-mercaptobenzoxazole,
Examples thereof include mercaptobenzothiazole, 2-mercapto-5-methylbenzimidazole, 6-ethoxy-2-mercaptobenzothiazole, 4,5-diphenyl-2-imidazolethiol, and 2-mercaptoimidazole. The addition amount of the mercapto compound is preferably about 0.001 to 1.0 mol per mol of silver.

Further, the image recording layer of this recording material and / or
Alternatively, other layers may contain various dyes and pigments for the purpose of improving color tone, preventing irradiation, and the like. Dyes and pigments may be any, for example, pigments and dyes described in the color index, specifically, pyrazoloazole dye, anthraquinone dye, azo dye, azomethine dye, oxonol dye, carbocyanine dye,
Organic pigments such as styryl dyes, triphenylmethane dyes, indoaniline dyes, indophenol dyes, phthalocyanines, and inorganic pigments, and inorganic pigments. Added to the liquid. The amount of these compounds to be used is determined depending on the desired amount of absorption, but is generally 1 to 1 per liter.
It is about μg to 1 g.

Further, in addition to these components, a plasticizer and a lubricant (for example, of the kind described in US Pat. No. 2,960,404) may be added to the image recording layer and / or other layers of the recording material. Glycerin and diols), ultra-high contrast agents (for example, hydrazine derivatives described in Japanese Patent Application No. 8-148116), high-contrast accelerators (for example, onium salts described in Japanese Patent Application No. 8-132636),
It may contain a hardener (for example, polyisocyanates described in JP-A-6-208193).

This recording material may have various layers other than the image forming layer. For example, a surface protective layer can be provided for the purpose of protecting the image forming layer and preventing adhesion.
The surface protective layer is formed from an anti-adhesion material, and uses, for example, wax, silica particles, styrene-containing elastomeric block copolymer (such as styrene-butadiene-styrene), cellulose acetate, cellulose acetate butyrate, and cellulose propionate. You.

Further, an antihalation layer may be provided. The antihalation layer preferably has a maximum absorption in the desired wavelength range of 0.3 to 2 and an absorption in the visible region after treatment of 0.001 to 0.5. When an antihalation dye is used, the dye may be any compound as long as it has the desired absorption in the wavelength range, has a sufficiently low absorption in the visible region after treatment, and has the desired absorbance spectrum of the antihalation layer. For example, the following are disclosed, but the present invention is not limited thereto. Examples of the single dye include compounds disclosed in JP-A-7-11432 and JP-A-7-13295, and dyes which can be decolorized by the treatment include JP-A-52-139136 and JP-A-7-139136. 19940
Compounds disclosed in the respective publications of No. 9 are exemplified.

The recording material preferably has an image forming layer on one side of the support and a back (coat) layer on the other side. A matting agent may be added to the back layer for improving transportability. The matting agent is generally fine particles of an organic or inorganic compound insoluble in water. Preferred examples of the organic compound include polymethyl acrylate, methyl cellulose, carboxy starch, and carboxynitrophenyl starch as examples of the water-dispersible vinyl polymer. Examples of the inorganic compound include silicon dioxide, titanium dioxide,
The size and shape of the matting agent preferably exemplified by magnesium dioxide, aluminum oxide, barium sulfate and the like are not particularly limited, but those having a particle size of 0.1 μm to 30 μm are preferably used. Also. As a matte degree of the back layer, a Beck smoothness of 250 seconds to 10 seconds is preferable.

As the binder for forming the back layer,
Preferably, various colorless, transparent or translucent resins can be used, and examples thereof include gelatin, gum arabic, polyvinyl alcohol, hydroxyethyl cellulose, cellulose acetate, cellulose acetate butylate, casein, starch, and poly (meth) acryl. Examples thereof include acid, polymethyl methacrylic acid, and polyvinyl chloride. The back layer preferably has a maximum absorption of 0.3 to 2 in a desired wavelength range. If necessary, an antihalation dye used in the antihalation layer may be added.

Further, on the surface on the side of the back layer, a backside resistive heating layer (backside resin) disclosed in each specification such as US Pat. Nos. 4,460,681 and 4,374,921.
may have an istive heating layer).

Further, in the recording material, in addition to these layers, an antistatic or conductive layer using a soluble salt (for example, chloride, nitrate, etc.), a deposited metal layer, US Pat.
It may have a layer containing an ionic polymer disclosed in JP 61,056, a layer containing an insoluble inorganic salt disclosed in US Pat. No. 3,428,451, and the like.

As another example of the recording material used in the sheet package of the present invention, the following light and heat sensitive recording material is exemplified. This light- and heat-sensitive recording material (hereinafter, referred to as a second recording material) is a recording material in which a light- and heat-sensitive recording layer is provided on a support. A recording material comprising, in addition to a thermochromatic colorless dye, a thermoresponsive microcapsule, a compound having an electron acceptor and a polymerizable vinyl monomer in the same molecule, and a photopolymerization initiator.

Further, another photosensitive and heat-sensitive recording material (hereinafter referred to as a third
As a recording material), a light and heat sensitive recording material provided with a light and heat sensitive recording layer on a support, wherein the light and heat sensitive recording layer is an electron-donating colorless dye encapsulated in thermoresponsive microcapsules, A recording material containing an electron-accepting compound, a polymerizable vinyl monomer, and a photopolymerization initiator in addition to the thermoresponsive microcapsules.

In these recording materials, a composition (hereinafter referred to as a photocurable composition) outside the thermoresponsive microcapsules is cured and fixed by exposure, and the mobility is improved by heating. Having (not immobilized), the compound having the electron accepting portion and the polymerizable vinyl monomer portion or the electron accepting compound moves in the light- and heat-sensitive recording layer to form the electron-donating colorless dye in the microcapsules. A recording material that forms an image by coloring.

The compound having an electron-accepting portion and a polymerizable vinyl monomer portion in the same molecule, which is used in the photocurable composition of the second recording material, refers to an electron-accepting group and a vinyl group in one molecule. Is a compound containing Specifically, styrenesulfonylaminosalicylic acid, vinylbenzyloxyphthalic acid, zinc β- (meth) acryloxyethoxysalicylate, vinyloxyethyloxybenzoic acid, β- (meth) ataacryloxyethylorselinate, β- ( (Meth) acryloxyethoxyphenol, β- (meth) acryloxyethyl-β-resorcinate, hydroxystyrenesulfonic acid-N-ethylamide, β- (meth) acryloxypropyl-p-hydroxybenzoate,
(Meth) acryloxymethylphenol, (meth) acrylamidopropanesulfonic acid, β- (meth) acryloxyethoxy-dihydroxybenzene, γ-styrenesulfonyloxy-β- (meth) acryloxypropanecarboxylic acid, γ- (meth) Acryloxypropyl-α-hydroxyethyloxysalicylic acid, β-hydroxyethoxycarbonylphenol, 3,5-distyrenesulfonic amide phenol, (meth) acryloxyethoxyphthalic acid, (meth) acrylic acid, (meth) acryloxyethoxy Hydroxynaphthoic acid, β- (meth) acryloxyethyl-p-hydroxybenzoate, β ′-(meth) acryloxyethyl-β-resorcinate, β-
(Meth) acryloxyethyloxycarbonylhydroxybenzoic acid and the like, and metal salts thereof such as zinc salt can be preferably used.

These compounds can be suitably used also as a polymerizable vinyl monomer of the photocurable composition of the third recording material. As the polymerizable vinyl monomer used in the third recording material, various monomers having at least one vinyl group in the molecule can be used. For example, (meth) acrylic acid and its salts, (meth) acrylic esters, (meth) acrylamides; maleic anhydride, maleic esters; itaconic acid, itaconic esters; styrenes; vinyl ethers and esters; N-vinyl heterocycles; allyl ethers, esters, and the like can be used. Especially,
Monomers having a plurality of vinyl groups in the molecule are preferred,
For example, there are (meth) acrylic acid esters of polyhydric alcohols, polyhydric phenols, (meth) acrylic acid esters of bisphenols, (meth) acrylate-terminated epoxy resins, and (meth) acrylate-terminated polyesters. Specifically, ethylene glycol diacrylate,
Examples thereof include ethylene glycol dimethacrylate, trimethylolpropane triacrylate, pentaerythritol tetraacrylate, dipentaerythritol hydroxypentaacrylate, hexanediol-1,5-dimethacrylate, and diethylene glycol dimethacrylate. These monomers have a molecular weight of about 100
Those having a size of about to about 5000 are preferably used.

The photopolymerization initiator used for the second and third recording materials (hereinafter collectively referred to as recording materials) is a compound capable of initiating the photopolymerization of the vinyl monomer, and is preferably , When used in combination with green, red to infrared absorbing dyes, has sensitivity in this wavelength range and generates radicals upon irradiation with light (JP-A-62-1430).
No. 44) An organic borate salt compound, more preferably an organic borate salt of a cationic dye can be mentioned. The organic borate generates a radical in response to the irradiated laser beam, and the radical initiates the polymerization of the vinyl monomer portion.

As the organic borate salt, a compound represented by the following general formula (1) is used.

Embedded image

In the above general formula (1), M is
Li metal atom, quaternary ammonium, pyridinium, quino
Linium, diazonium, morpholinium, tetrazoli
, Acridinium, phosphonium, sulfonium,
Oxosulfonium, sulfur, oxygen, carbon, halogeniu
, Cu, Ag, Hg, Pd, Fe, Co, Sn, M
cation selected from o, Cr, Ni, As, Se
N is an integer of 1 to 6, R ¹, R^Two, R^ThreeAnd R^Four
Each represents a halogen atom, a substituted or unsubstituted alkyl
Group, substituted or unsubstituted alkenyl group, substituted or unsubstituted
Substituted alkynyl group, alicyclic group, substituted or unsubstituted ant
Alkenyl group, substituted or unsubstituted alkaryl group,
Is an unsubstituted aryloxyl group, a substituted or unsubstituted
Alkyl group, substituted or unsubstituted heterocyclic group, substituted or unsubstituted
Represents a substituted silyl group. Where R¹, R^Two, R^ThreeAnd
And R^FourMay be the same or different from each other, and these
Of these, two or more groups may be bonded to form a cyclic structure.

In the above general formula (1), the borate anions include tetraethyl borate, triisobutyl methyl borate, di-n-butyl-di-t-butyl borate, tetraphenyl borate, tetra-p-chlorophenyl borate, tri- m-chlorophenyl-n-hexyl borate, triphenylethyl borate, trimethylbutyl borate, tolyl isopropyl borate,
Triphenylbenzyl borate, tetraphenyl borate, tetrabenzyl borate, triphenylphenethyl borate, triphenyl-p-chlorobenzyl borate, triphenylethenituburiborate, di (α-nephthyl) -dipropyl borate, triphenylsilyl triphenyl Examples thereof include borate, tritolylsilylphenyl borate, and tri-n-butyl (dimethylphenylsilyl) borate.

The following is an example of the organic borate represented by the general formula (1).

Embedded image

In order to improve the light absorption efficiency of the recording light L and the like,
The organic borate salt represented by the general formula (1) is preferably used as a spectral sensitizing dye in combination with green to red and infrared absorbing dyes. Particularly, the maximum absorption wavelength is 500 to 1
Organic cationic dyes having a wavelength range of 100 nm are preferably used, and specifically, cationic methine dyes,
Examples include a cationic carbonium dye, a cationic quinone imine dye, a cationic indoline dye, and a cationic styryl dye. More specifically, as the cationic methine dye, polymethine dye, cyanine dye, azomethine dye, more preferably cyanine, carbocyanine, dicarbocyanine, tricarbocyanine, hemicyanine, etc., as a cationic carbonium dye , A triarylmethane dye, a xanthene dye, an aridudine dye, more preferably a rhodamine, etc. These can be used alone or in combination of two or more.

The photopolymerization initiator is more preferably
An organic borate salt of a cationic dye represented by the following general formula (2) is used.

[0098]

Embedded image

In the above formula (2), D ⁺ represents a cationic dye, and R ¹ , R ² , R ³ and R ⁴ are a halogen atom, a substituted or unsubstituted alkyl group, a substituted or unsubstituted aryl group. Group, substituted or unsubstituted aralkyl group, substituted or unsubstituted alkaryl group, substituted or unsubstituted alkenyl group, substituted or unsubstituted alkynyl group, substituted or unsubstituted aryloxyl group, substituted or unsubstituted arylic group It is a group selected from a click group, a substituted or unsubstituted heterocyclic group, a substituted or unsubstituted allyl group, a substituted or unsubstituted silyl group, and an alicyclic group. Also,
R ¹ , R ² , R ³ and R ⁴ may be the same or different from each other, and two or more of these groups may be bonded to form a cyclic structure.

In the above general formula (2), the cationic dye represented by D ⁺ acts as a spectral sensitizing dye, and has a wavelength region of 500 nm or more, particularly 550 nm to 550 nm.
An organic cationic dye having an absorption peak in a wavelength region of 1100 nm is preferably exemplified. Specific examples include a cationic methine dye, a cationic carbonium dye, a cationic quinone imine dye, a cationic indoline dye, and a cationic styryl dye.More specifically, the cationic methine dye is preferably polymethine. Dyes, cyanine dyes, azomethine dyes, more preferably cyanine, carbocyanine, dicarbocyanine, tricarbocyanine, hemicyanine, etc., as the cationic carbonium dye, preferably a triarylmethane dye, a xanthene dye, an alicidine dye, Preferably, rhodamine or the like is used, and as the cationic quinone imine dye, a dye selected from azine dyes, oxazine dyes, thiazine dyes, quinoline dyes, and thiazole dyes is preferably used. Further, as the borate anion, the same ones as in the general formula (1) are preferably exemplified.

The following is an example of the organic borate salt of the cationic dye represented by the general formula (2).

Embedded image

[0102]

Embedded image

The content of these photopolymerization initiators is preferably 0.01% by weight to 20% by weight based on the total weight of the photocurable composition (outside of the thermoresponsive microcapsules).

In this recording material, together with the aforementioned photopolymerization initiator and spectral sensitizing dye, a compound represented by the following general formulas (3) and (4) having an active halogen group in the molecule is assisted. It can be used in combination as an agent.

[0105]

Embedded image In the general formula (3), X represents a halogen atom, and Y ¹ represents-
_{CX 3, -NH 2, -NHR,} -NR 2, represents an -OR. Here, R represents an alkyl group, a substituted alkyl group, an aryl group, or a substituted aryl group. Y ² is -CX ₃ ,
Represents an alkyl group, a substituted alkyl group, an aryl group, a substituted aryl group, or a substituted alkenyl group. The substituent may be the general formula (3) itself.

[0106]

Embedded image In the general formula (4), X represents a halogen atom.
Y ³ and Y ⁴ may be the same or different and represent a hydrogen atom or a halogen atom. Z represents a group represented by the following formula.

Embedded image Here, R ¹ is a hydrogen atom, a halogen atom, an alkyl group,
Represents a substituted alkyl group, an aryl group, a substituted aryl group, a substituted alkenyl group, a heterocyclic group, or a substituted heterocyclic group.

As the compound represented by the general formula (3), a compound in which Y ¹ is CX ₃ is preferably used. Specifically, the compound represented by the general formula (3) includes 2-phenyl-4,6-bis (trichloromethyl) -S-triazine and 2- (p-chlorophenyl)-
4,6-bis (trichloromethyl) -S-triazine,
2- (p-methoxyphenyl) -4,6-bis (trichloromethyl) -S-triazine, 2,4,6-tris (trichloromethyl) -S-triazine, 2- (p-cyanophenyl) -4, 6-bis (trichloromethyl)-
S-triazine, 2- (p-acetylphenyl) -4,
6-bis (trichloromethyl) -S-triazine and the like are preferably excited.

On the other hand, compounds represented by the above general formula (4) include carbon tetrachloride, carbon tetrabromide, iodoform, p-form
-Nitro-α, α, α-tribromoacetophenone,
ω, ω, ω-Tribromoquinaldine, tribromomethylphenylsulfone, trichloromethylphenylsulfone and the like.

The compound represented by the general formula (3) or (4) is a compound having a spectral sensitizing dye (cationic dye) of 1 mole.
It is preferable to add 0.01 to 20 mol of the compound represented by the general formula (3) or (4) to l.

This recording material is highly sensitive and sensitive to infrared light, but as an auxiliary for promoting latent image formation,
A reducing agent such as an oxygen scavenger and a chain transfer agent for an active hydrogen donor, and other compounds may be used in combination. Oxygen scavengers that have been found to be useful as auxiliaries to promote latent image formation are phosphines, phosphonates, phosphites, stannous salts, and other compounds that are easily oxidized by oxygen, For example, N
-Phenylglucin, trimethylbarbituric acid, N,
N-dimethyl-2,6-diisopropylaniline and the like are exemplified.

An electron-accepting compound is added to the photocurable composition of the third recording material. Further, the photocurable composition of the second recording material may also be added with an electron-accepting compound, if necessary, to improve the color density.
Examples of the electron-accepting compound include phenol derivatives, salicylic acid derivatives, metal salts of aromatic carboxylic acids, acid clay, bentonite, novolak resins, metal-treated novolak resins, and metal complexes. In addition, as a phenol derivative, 2,2'-bis (4-hydroxyphenyl) propane, 4-t-butylphenol, 4-phenylphenol, 4-hydroxydipheninoxide, 1,1,
Examples thereof include 1'-bis (3-chloro-4-hydroxyphenyl) cyclohexane and 1,1'-bis (3-chloro-4-hydroxyphenyl) -2-ethylbutane.
Examples of salicylic acid derivatives include 4-pentadecylsalicylic acid, 3,5-di (α-methylbenzyl) salicylic acid, 3,5-di (tert-octyl) salicylic acid,
-Octadecylsalicylic acid, 5-α- (p-α-methylbenzylphenyl) ethylsalicylic acid, 3-α-methylbenzyl-5-tert-octylsalicylic acid, 5-tetradecylsalicylic acid, and the like. These electron accepting compounds are used in an amount of from 5% by weight to 100% of the
It is preferable to use about 0% by weight.

The photocurable composition of such a recording material has, in addition to these compounds, a photocrosslinkable composition such as polyvinyl cinnamate, polycinnamylidene vinyl acetate, and α-phenylmaleimide group. You may add a photocurable composition etc. Further, these photocrosslinkable compositions may be used as photocurable components.

Further, in addition to these compounds, the photocurable composition may, if necessary, prevent the photocurable composition from being thermally and temporally polymerized to enhance the stability. For the purpose, a thermal polymerization inhibitor may be added. Examples of the thermal polymerization inhibitor include p-methoxyphenol, hydroquinone, t-butylcatechol, pyrogallol, 2-hydroxybenzophenone, 4-methoxy-2-hydroxybenzophenone, cuprous chloride, phenothiazine, chloranil, naphthylamine, β-naphthol, 2,6-di-t
-Butyl-p-cresol, nitrobenzene, dinitrobenzene, picric acid, p-toluidine and the like are preferably exemplified, and 0.001% by weight based on the total weight of the photocurable composition.
It is preferable to add about 5% by weight.

The photocurable composition is emulsified and dispersed and contained in the light and heat sensitive recording layer. Solvents used for emulsifying and dispersing the photocurable composition include cottonseed oil, kerosene, aliphatic ketone, aliphatic ester, paraffin, naphthenic oil, alkylated biphenyl, chlorinated paraffin, 1,
Diarylethanes such as 1'-ditolylethane; alkyl phthalates such as dibutyl phthalate; phosphates such as diphenyl phosphate; citrates such as tributyl acetylcitrate; benzoates such as octyl benzoate; alkyls such as diethyl lauramide. Amides, acetates such as ethyl acetate, acrylic acid (methacrylic acid) esters such as methyl acrylate, alkyl halides such as methylene chloride and carbon tetrachloride, methyl isobutyl ketone, β-ethoxyethyl acetate;
Methyl cellosolve acetate and the like. Particularly, aliphatic esters and alkyl halides are preferable, and those having a solubility in water of 10% by volume or less are more preferable. These solvents are preferably used in a proportion of 1 part by weight to 500 parts by weight based on the photopolymerizable compound.

As the water-soluble polymer which can be used for emulsifying and dispersing the photocurable composition, a compound which is soluble in water at 25 ° C. in an amount of 5% by weight or more is preferable. Derivatives, proteins such as albumin, cellulose derivatives such as methylcellulose, sugar derivatives such as starches (including modified starch), polyvinyl alcohol, styrene-maleic anhydride co-weight hydrolyzate, carboxy-modified polyvinyl alcohol, polyacrylamide, acetic acid Saponified vinyl-polyacrylic acid copolymers and synthetic polymers of polystyrene sulfonate sugars are exemplified, and gelatin and polyvinyl alcohol are particularly preferred.

On the other hand, the electron-donating colorless dye encapsulated in the microcapsules of the light- and heat-sensitive recording layer of this recording material is as follows:
A conventionally known triphenylmethanephthalide-based compound,
Various compounds such as fluoran compounds, phenothiazine compounds, indolyl phthalide compounds, leuco auramine compounds, rhodamine lactam compounds, totaphenylmethane compounds, triazene compounds, spiropyran compounds, and fluorene compounds can be used. . Specifically, triphenylmethanephthalide-based compounds include 3,3-bis (p-dimethylaminophenyl) -6-dimethylaminophthalide and 3- (p-dimethylaminophenyl) -3- (2-methyl Indole-3-yl) phthalide and the like; N-halophenyl-leuco auramine and N-2,4,5-trichlorophenyl leuco auramine as leuco auramine compounds; and Rhodamine-B as a rhodamine lactam compound. -Anilinolactam and rhodamine- (p-nitrino) lactam and the like: Examples of fluoran compounds include 2- (dibenzylamino) fluoran, 2-anilino-3-methyl-6-diethylaminofluoran and 2-anilino-3-. Methyl-6-N-
Methyl-N-cyclohexylaminofluoran and the like;
Phenothiazine compounds include benzoyl leucon methylene blue and p-nitrobenzyl leucomethylene blue; spiropyran compounds include 3-methyl-
Spiro-dinaphthopyran, 3,3′-dichloro-spiro-dinaphthopyran and the like are each exemplified. Also,
When this recording material is used as a full-color recording material, U.S. Pat. No. 4,900,149 is used as an electron-donating colorless dye for cyan, magenta, and yellow, and U.S. Pat. And No. 148 are disclosed in Japanese Patent Application Laid-Open No.
No. 3542 can be referred to.

The microencapsulation including such an electron-donating colorless dye can be performed by a method known in the art. For example, US Pat. No. 2,800,457
U.S. Pat. No. 3,660,304, which discloses a method utilizing coacervation of a hydrophilic wall-forming material disclosed in Japanese Patent Application Publication No. 42-771 and an interfacial polymerization method disclosed in Japanese Patent Publication No. 42-771. By using the isocyanate polyol wall material disclosed in U.S. Pat. No. 3,796,669, U.S. Pat.
A method using an isocyanate wall material disclosed in US Pat. No. 914,511 and a method using a urea formaldehyde-resorcinol-based wall forming material disclosed in US Pat. No. 4,089,802 are disclosed. Especially,
It is preferable to form a polymer film as a microcapsule wall after emulsifying the core substance.

[0118] Among them, a microencapsulation method by polymerization of a reactant from the inside of an oil droplet is preferable in that a recording material having uniform capsules and excellent storage stability can be obtained within a short time. For example, when polyurethane is used as a capsule wall material, a polyvalent isocyanate and a second substance (eg, polyol, polyamine) which reacts with the polyisocyanate to form a capsule wall are mixed in an oily liquid to be encapsulated and emulsified in water. By dispersing and then raising the temperature, a polymer forming reaction occurs at the oil droplet interface to form microcapsule walls. At this time, an auxiliary solvent having a low boiling point and strong dissolving power can be used in the oily liquid.

The polyvalent isocyanate used in this case includes m-phenylene diisocyanate, 2,6-tolylene diisocyanate, 2,4-tolylene diisocyanate, diphenylmethane-4,4-diisocyanate,
Various polyvalent isocyanates for producing known urethane resins, such as xylylene-1,4-diisocyanate, 4,4'-diphenylpropane diisocyanate, trimethylene diisocyanate, and hexamethylene diisocyanate, can be used. The polyvalent isocyanate can also react with water to form a polymer. Further, as the polyol, aliphatic, aromatic polyhydric alcohol,
Hydroxypolyester, hydroxypolyalkylene ether, etc., specifically, ethylene glycol, 1,3
-Propanediol, 1,4-butanediol, 1,5
-Pentanediol, 1,6-hexanediol, propylene glycol, 2,3-dihydroxybutane, 1,
2-dihydroxybutane, 2,5-hexanediol,
Various polyols, such as 3-methyl-1,5-pentanediol and dihydroxycyclohexane, for producing known urethane resins can be used. The polyol has a hydroxyl group ratio of 0.1 mol per 1 isocyanate group.
It is preferable to use about 02 mol to 2 mol. further,
Examples of the polyamine include ethylenediamine, trimethylenediamine, tetramethylenediamine, pentamethylenediamine, hexamethylenedimian, p- (m-) phenylenediamine, piperazine and derivatives thereof, 2-hydroxytrimethylenediamine, diethylenetriamine, triethylenetriamine, triethylenetriamine, and triethylenetriamine. Examples include ethylene tetramine, tetraethylene pentamine, and amine adducts of epoxy compounds.

The microcapsules can also be produced using a water-soluble polymer. The water-soluble polymer at this time may be any of a water-soluble anionic polymer, a nonionic polymer, and an amphoteric polymer. Examples of the anionic polymer, for example -COO -, - SO ₂ - may be mentioned those having a group such as,
Specifically, arabic gum, alginic acid, sulfated starch, sulfated cellulose, gelatin derivatives such as phthalated gelatin, acrylic (methacrylic acid) acid (co) polymer,
Vinyl benzene sulfonic acid (co) polymers, carboxy-modified polyvinyl alcohol, etc., nonionic polymers include polyvinyl alcohol, hydroxyethyl cellulose, methyl cellulose, etc., and amphoteric compounds include gelatin, etc. Gelatin derivatives and polyvinyl alcohol are preferred. The water-soluble polymer is used as an aqueous solution of 0.01% by weight to 10% by weight.

In such a recording material, the average particle size of the capsule is 20 μm or less, and particularly preferably 5 μm or less from the viewpoint of resolution. On the other hand, if the capsule is too small, the surface area for a certain solid content becomes large, and a large amount of a wall material is required. Therefore, the thickness is preferably 0.1 μm or more.

The colorless electron-donating dye may be present in a solution state in a microcapsule or in a solid state. When an electron-donating colorless dye is present in a solution state, the dye may be encapsulated in a state of being dissolved in a solvent. At this time, the amount of the solvent is preferably 1 to 500 parts by weight based on 100 parts by weight of the electron-donating colorless dye. As a solvent used at the time of encapsulation,
The same solvent as that used for emulsifying the photocurable composition can be used. Also, at the time of microencapsulation,
As an auxiliary solvent for dissolving the electron-donating colorless dye,
A volatile solvent such as an acetate-based solvent may be used in combination with another solvent.

This recording material may have various layers such as a protective layer and an intermediate layer in addition to the light and heat sensitive recording layer, but it is preferable to add a matting agent to the protective layer. Examples of the matting agent include silica, magnesium oxide, barium sulfate, inorganic particles such as strontium sulfate, polymethyl methacrylate, polyacrylonitrile, resin particles such as polystyrene, carboxy starch, starch particles such as corn starch and the like. Polymethyl methacrylate particles and silica particles are preferably used. As the silica particles, SYLOID AL series manufactured by FUJI-DEVISON CHEMICAL LTD. And the like can be used. The particle size of the matting agent is 1 μm
To 20 μm is preferable, and the addition amount is 2 μm.
mg / m ² ~500mg / m ² is preferred.

It is preferable that the recording material is used in combination with the light- and heat-sensitive layer, the intermediate layer and the protective layer. In particular, it is preferable to use a curing agent in the protective layer to reduce the tackiness of the protective layer. As the curing agent, for example, a "gelatin curing agent" used in the production of a photographic light-sensitive material is useful, and specifically, chrom alum, zirconium sulfate, boric acid,
1,3,5-triacroyl-hexahydro-s-triazine, 1,2-bisvinylsulfonylmethane, 1,3
-Bis (vinylsulfonylmethyl) propanol-2,
Bis (α-vinylsulfonylacetamido) ethane,
2,4-dichloro-6-hydroxy-s-triazine.
Sodium salts, 2,4,6-triethylenino-s-triazine and the like are preferably exemplified. The amount of the curing agent added in each layer is 0.5% by weight to 5% by weight with respect to the binder.
% By weight is preferred.

Further, colloidal silica may be added to the protective layer in order to reduce the adhesiveness. As the colloidal silica, for example, Nissan Chemical's Snowtex 20, Snowtex 30, Snowtex C, Snowtex O, Snowtex N, etc. can be used.
The addition amount is preferably about 5% by weight to 80% by weight based on the binder. Further, a fluorescent whitening agent for increasing the whiteness of the recording material or a blue dye as a bluing agent may be added to the protective layer.

When this recording material is used as a multicolor recording material, for example, a microcapsule containing an electron-donating colorless dye that develops a different hue and a photocurable composition that is sensitive to light of a different wavelength are used for each layer. A multi-layered recording material may be used, and an intermediate layer containing a filter dye may be provided between the photosensitive and heat-sensitive layers. The intermediate layer is mainly composed of a binder and a filter dye, and may contain additives such as a curing agent and a polymer latex, if necessary.

The dye for filter used in the recording material of the present invention can be emulsified and dispersed by an oil-in-water dispersion method or a polymer dispersion method and added to a desired layer, particularly, an intermediate layer. In the oil-in-water dispersion method, the boiling point is, for example, after dissolving in a single liquid or a mixed liquid of either a high-boiling organic solvent having a boiling point of 175 ° C or higher and a so-called auxiliary solvent having a boiling point of 30 ° C to 160 ° C.
It is finely dispersed in an aqueous medium such as water or an aqueous gelatin solution or aqueous polyvinyl alcohol solution in the presence of a surfactant. Specific examples of the latex dispersion method and the latex for curing and impregnation are described in U.S. Pat. No. 4,199,383. Suitable latexes include, for example, acrylic acid such as ethyl acrylate. A copolymer latex of a (methacrylic acid) ester and an acid monomer such as acrylic acid is preferred.

In this recording material, as a binder for each layer such as a protective layer, a light and heat sensitive layer, and an intermediate layer, a water-soluble binder which can be used for emulsifying and dispersing a photocurable composition and encapsulating an electron-donating colorless dye. In addition to polymers, polystyrene,
Solvent-soluble polymers such as acrylic resins such as polyvinyl formal, polyvinyl butyral, polyvinyl alcohol and polymethyl acrylate, phenol resins, ethyl cellulose, epoxy resins and urethane resins, or latexes of these polymers can also be used. Among these, gelatin and polyvinyl alcohol are preferred.

Each layer of the recording material has a coating aid,
Various surfactants may be used for various purposes such as antistatic, improving slipperiness, emulsifying and dispersing, and preventing adhesion. As a surfactant, for example, saponin which is a nonionic surfactant,
Polyethylene oxide and its derivatives, alkyl sulfonates, alkyl sulfates, N-acyl-N-
Requires alkyl taurines, sulfosuccinates, various anionic surfactants, amphoteric surfactants such as alkyl betaines and alkyl sulfo betaines, and cationic surfactants such as aliphatic or aromatic quaternary ammonium salts It can be used according to. In addition to the additives described so far, if necessary, dyes to prevent irradiation and halation, ultraviolet absorbers, plasticizers,
Fluorescent whitening agents, coating aids, curing agents, antistatic agents, slip improvers, and the like may be added.

A recording material having such a characteristic image forming layer and a recording material having a light and heat sensitive recording layer are prepared by preparing a coating solution (emulsion) containing the components of each layer by using a solvent, if necessary. It can be produced by applying and drying by a known means. As the solvent, various solvents used for producing the recording material can be used. Specifically, water, alcohols such as ethanol and isopropanol, halogen-based solvents such as ethylene chloride, ketones such as cyclohexanone and methyl ethyl ketone. , Esters such as methyl acetate cellosolve and ethyl acetate, toluene, xylene, etc. are exemplified.If necessary, a plurality of types may be used in combination. Various surfactants such as nonionic, anionic, cationic, and fluorine may be added. In addition, as a coating method, a known method such as a blade coater, a rod coater, a knife coater, a roll doctor coater, a reverse roll coater, a transfer roll coater, a gravure coater, a kiss roll coater, and a curtain coater can be used. In addition,
It is a matter of course that the application amount of each paint is adjusted so that the adhesion amount of each layer after drying becomes a predetermined amount.

The support constituting these recording materials is not particularly limited, and various materials used in ordinary recording materials can be used. Specifically, polyester films, polyethylene terephthalate films, Polyethylene naphthalate film, cellulose nitrate film, cellulose ester film, polyvinyl acetal film, resin film such as polycarbonate film, aluminum, zinc, various metals such as copper, glass,
Paper is exemplified.

As described above, the sheet package of the present invention has been described in detail. However, the present invention is not limited to the above examples.
Of course, various improvements and modifications may be made without departing from the spirit of the present invention.

[0133]

As described in detail above, according to the sheet package of the present invention, the heat-sensitive sheet can always be suitably held in a predetermined humidity environment, so that high-quality image recording can be stably performed. Can be done. In addition, the heat-sensitive sheet can be easily supplied to the image recording apparatus without directly touching the heat-sensitive sheet, and adverse effects on the recorded image due to hand oil or the like can be prevented.

Further, by keeping the inside of the sheet package at low humidity, even when an image is recorded after the recording material has been stored for a long time in a laminated state, the density unevenness in one recording material can be improved. Can be eliminated. In addition, the raw preservability of the recording material can be improved.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram of an example of an image recording apparatus of the present invention using a sheet package of the present invention.

FIG. 2 is a schematic perspective view of an example of a sheet package of the present invention.

FIGS. 3A, 3B, and 3C are conceptual diagrams of another example of the sheet package of the present invention.

FIG. 4 is a schematic perspective view of the magazine shown in FIG.

5 is an exploded cross-sectional view of the magazine shown in FIG.

FIG. 6 is a sectional view showing a different use state of the magazine shown in FIG. 4; (A) shows the case where the lid is opened, (b)
Indicates a case where the lid is closed.

FIG. 7 is a conceptual diagram of an image exposure unit of the image recording apparatus shown in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 (Image) recording device 12 Supply part 14 Width adjustment part 16 Image exposure part 18 Thermal development part 22, 24 Loading part 46 Exposure unit 48 Sub-scanning conveyance means 58 Heating drum 80, 90 (Recording sheet) package 81 Exit 82 Case 86 Humidity control agent 88, 92 Moisture-proof bag 94 Seal material 100 Magazine 102 Housing 102a Upper case 102b Lower case 102c Engagement part 103 Rib 104 Cover 104a Engagement part 106 Engagement piece 106a Hole 108 Sponge 110 Projection 112 Magnet 114 Sheet metal 118 Projection A Recording material

Claims (3)

[Claims] 1. A package for accommodating a laminate of a photothermographic material or a photothermographic recording material, the package having an outlet for the photothermographic material or the photothermographic material, and a humidity control fixed to the package. A recording sheet package comprising an agent or a desiccant. 2. The photothermographic material according to claim 1, further comprising: a support formed in a sheet form; and an image forming layer provided on the support. 2. The recording sheet package according to claim 1, wherein the recording sheet package is a layer comprising an organic silver salt and a reducing agent for the organic silver salt. 3. 3. The photosensitive and thermosensitive recording material has a support formed in a sheet shape, and a photosensitive and thermosensitive recording layer provided on the support, wherein the photosensitive and thermosensitive recording layer is a thermoresponsive microcapsule. A layer containing an electron-donating colorless dye encapsulated in and a compound having an electron-accepting portion and a polymerizable vinyl monomer portion in the same molecule, and a photopolymerization initiator, in addition to the thermoresponsive microcapsules, Or, a layer containing an electron-donating colorless dye encapsulated in the thermoresponsive microcapsules, and an electron accepting compound, a polymerizable vinyl monomer, and a photopolymerization initiator, in addition to the thermoresponsive microcapsules. The recording sheet package according to claim 1.