JPH09101596A - Package for sheet-like tehrmosensitive recording material - Google Patents

Abstract

PROBLEM TO BE SOLVED: To control the moisture in a moistureproof light shielding bag to a prescribed value while reducing a cost. SOLUTION: The sheet-like thermosensitive recording materials 10 housed in an inside box 20 are packaged by the moistureproof light shielding bag 30. This inside box 20 is so formed that plural sheets of the sheet-like thermosensitive recording materials 10 stacked on each other may be housed therein by white colored polypropylene sheets having a dustfree property to cover the front and rear surfaces and four flanks of the housed sheet-like thermosensitive recording materials 10. The moisture control member 11 disposed on the front surface in the plane of Fig. in the cap part 21 of the inside box 20 controls the moisture in the moistureproof light shielding bag 30 to 23 deg.C.45±15%RH.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a sheet-like heat-sensitive recording material package suitable for use in a heat-sensitive recording material. The structure for doing.

[0002]

2. Description of the Related Art As a conventional sheet-shaped thermosensitive recording material package, as shown in FIG. 12, a contact ball 81 is brought into contact with the upper and lower surfaces and the left side surface of FIG. As a result, the sheet-shaped heat-sensitive recording material 80 is sandwiched between the contact balls 81, and in this state, it is packaged and sealed by the moisture-proof light-shielding bag 82.

[0003]

Generally, thermal recording materials are particularly sensitive to changes in humidity, and in order to maintain color development performance for a long period of time, the humidity is 23 ° C./45%.
It is preferable to place in an atmosphere before and after RH. Humidity is 23
If the temperature is less than 45 ° C / 45% RH, the sensitivity is lowered particularly in the halftone, while if the humidity exceeds 23 ° C / 45% RH, the sensitivity becomes too high. However, as shown in FIG.
In the conventional sheet-shaped thermal recording material package shown in Fig. 3, it is extremely difficult to adjust the humidity in the moisture-proof light-shielding bag to a predetermined value after packaging, so the color development performance of the sheet-shaped thermal recording material is maintained for a long period of time. There was a problem that I could not do it. Further, the heat-sensitive recording material is colored by the thermal head, but there is a problem of white spot failure which occurs in the packaging material due to vibration or abrasion due to transportation or the like.

According to the present invention, the humidity in the moisture-proof light-shielding bag can be adjusted to a predetermined value and the dusting property can be suppressed as much as possible, whereby the coloring performance of the sheet-like heat-sensitive recording material can be maintained for a long period of time. It is an object of the present invention to provide a sheet-like thermosensitive recording material package which can be favorably maintained.

[0005]

The above object of the present invention is to form a sheet-shaped heat-sensitive recording material in which a plurality of stacked sheet-like heat-sensitive recording materials are made of a dust-free material, and to display the sheet-like heat-sensitive recording material. An inner box that covers at least a part of the back surface and four side surfaces, a moisture-proof light-shielding bag that has moisture-proof and light-shielding properties and wraps the sheet-shaped heat-sensitive recording material housed in the inner box, and a sheet-shaped heat-sensitive recording in the inner box It is installed at a position where it does not interfere with the material and keeps the humidity inside the moisture-proof light-shielding bag at 23 ° C ・ 45 ±
And a humidity control member for adjusting the humidity to 15% RH.

[0006]

In the sheet-like heat-sensitive recording material package according to the present invention, the sheet-like heat-sensitive recording material contained in the inner box is packed in the moisture-proof light-shielding bag. The inner box is formed of a dust-free material so as to be able to accommodate a plurality of stacked sheet-shaped thermal recording materials, and covers at least a part of the front and back surfaces and four side surfaces of the accommodated sheet-shaped thermal recording materials.
A humidity control member is provided at a position in the inner box that does not interfere with the sheet-shaped heat-sensitive recording material. The humidity control member controls the humidity in the moisture-proof light-shielding bag at a temperature of 23 ° C. by 45 ± 15% RH, preferably 45 ± 10% RH, and particularly preferably 45 ± 5%.
Adjust to RH.

[0007]

BEST MODE FOR CARRYING OUT THE INVENTION The present invention will be described below with reference to the illustrated embodiments, but the present invention is not limited thereto. FIG. 1 is a perspective view showing a sheet-shaped thermosensitive recording material package according to the first embodiment of the present invention. In this figure, the sheet-shaped heat-sensitive recording material 10 such as an X-ray photographic film housed in the inner box 20 is packaged in a moisture-proof light-shielding bag 30 and housed in an individual packaging box 40 (FIG. 7). A humidity control member 11 is provided at a position in the inner box 20 that does not interfere with the sheet-shaped thermal recording material 10.

The inner box 20 is formed of, for example, a white colored polypropylene sheet having a dust-free property so that a plurality of sheet-shaped heat-sensitive recording materials 10 can be accommodated. That is, in the inner box 20, as shown in FIGS.
The lid portion 21 and the bottom portion 22 are bent so as to face each other with the hinge portion 23 interposed therebetween, and the left and right side portions 24 respectively provided on the left and right edges of the lid portion 21 and the bottom portion 22 in FIG. An upper side portion 25 is provided at the upper edge of the bottom portion 22 in FIG. The inner box 20 is inserted in a magazine (not shown) on the upper surface of the sheet-shaped heat-sensitive recording material 10 in FIG. 1 (arrow A in FIG. 1) with the contained sheet-shaped heat-sensitive recording material 10 placed on the bottom portion 22. The lid portion 21 covers about half of the rear side, and the hinge portion 23, the left and right side portions 24, and the upper portion 25 cover four side surfaces that are substantially perpendicular to the upper surface in FIG. Table 1 shows the measurement results of the physical properties of the dust-free white colored polypropylene sheet used in the present invention.

[0009]

[Table 1]

[0010] In Table 1, the term "initial charging" means a state in which electricity is already applied before the forced charging when the attenuation rate is measured by the Honest meter. When the initial charging is confirmed, problems such as dust adhesion due to static electricity are likely to occur.
The AS agent is a liquid alkylphenyl ether.

The moisture-proof light-shielding bag 30 wraps the sheet-shaped heat-sensitive recording material 10 contained in the inner box 20. Moisture-proof shade bag 30
As shown in FIGS. 4 and 5, a sheet-like packaging material having a light-shielding property and a moisture-proof property is adhered at the upper seal portion 31, the bottom seal portion 32, and the center seal portion 33 to form a bag. That is, the moisture-proof light-shielding bag 30 has a bottom formed by adhering the upper edge portion and the lower edge portion in FIG. 5 of the doubled sheet-shaped packaging material with the upper seal portion 31 and the bottom seal portion 32,
Moreover, both ends of the double sheet-shaped packaging material are bonded by the center seal portion 33, and the center seal portion 33 is positioned substantially orthogonal to the bottom seal portion 32 and slightly to the right of the center of the bottom portion to form a bag shape. It is formed.

The sheet-shaped packaging material constituting the moisture-proof light-shielding bag 30 has sufficient light-shielding property to keep the packaged sheet-shaped heat-sensitive recording material 10 in a light-shielded state even under a white light.
Has moisture resistance. That is, in the sheet-like packaging material, although not shown, a polyethylene terephthalate layer having a thickness of 12 μm as an uppermost layer, an aluminum layer having a thickness of 9 μm and a nylon layer having a thickness of 15 μm as an intermediate layer, and a polyethylene layer having a thickness of 60 μm as an innermost layer. , Which are laminated via an adhesive layer.

Referring to FIGS. 1 and 6, the humidity control member 11
Is provided on the upper surface in FIG. 1 of the lid portion 21 of the inner box 20, and the sheet-like thermosensitive recording material 1 accommodated in the inner box 20.
Does not interfere with 0. The humidity control member 11 is made of paper having a thickness of 3 mm or 5 mm in which a fine humidity control material is inserted between fibers, and specific examples thereof include SHC paper (made by Tokushu Paper Co., Ltd.). The humidity control member 11 controls the humidity inside the moisture-proof light-shielding bag 30 at a temperature of 23 ° C. by 45 ± 15% RH, preferably 45 ± 15% RH.
It is adjusted to 10% RH, particularly preferably 45 ± 5% RH. As the humidity control agent, porous sodium aluminate silicate, which is a kind of natural zeolite, is preferably used.

The sheet-shaped heat-sensitive recording material 10 packed in the moisture-proof light-shielding bag 30 is an individual packaging box 40 shown in FIGS. 7 and 8.
Is stored in. Referring to FIGS. 7 and 8, the individual packaging box 40
8, the front surface 41 and the back surface 42 are bent so as to face each other with the bottom surface 43 interposed therebetween, and the left and right side surfaces 44 and 45 provided on the left and right edges of the front surface 41 and the back surface 42 in FIG. The front side surface 41 and the rear side surface 42 and the upper side surfaces 46 and 47 respectively provided at the lower side edge portion in FIG. Left and right side surfaces 44,
Adhesion between 45 and upper side surfaces 46, 47 is
By hot melt adhesion, etc. As a material forming the individual packaging box 40, a material having a cushioning function, for example, a basis weight of 70 g /
m ³ of kraft liner of the type that was bonded to both sides of the flute cardboard (K280 + SCP125 + K28
The paper material of 0) is preferable.

A first perforation 48 is provided on the front surface 41 of the individual packaging box 40 in the width direction of the individual packaging box 40.
The second perforations 49 are provided on the upper surface 46 side (the lower side in FIG. 8) of the first perforations 48 of the individual packaging box 40 so as to be orthogonal to the first perforations 48.

A pair of first perforations 48 are provided substantially in parallel with each other in the vertical direction of the individual packaging box 40 so as to connect the left and right side surfaces 44 and 45 of the individual packaging box 40, with a space between them. The ripper portion 50 is formed so as to be surrounded by. In the vicinity of the left side surface 44 of the individual packaging box 40 in the ripper portion 50, a knob portion 51 connecting the perforations 48 and 49 is outward from the right side edge of the individual packaging box 40 in FIG. 7 (right side in FIG. 7). It is provided so as to project. The first perforation 48 is broken by pulling the knob portion 51 in the direction of the arrow B (FIG. 7), the ripper portion 50 is removed, and the individual packaging box 40 is opened.

The second perforation 49 is the first perforation 4
8 is provided along the fold line 52 of the front surface 41 of the individual packaging box 40 and the left and right side surfaces 44 so as to connect the upper side surface 46 (lower side in FIG. 8) of the individual packaging box 41. After the first perforation 48 is broken and the ripper portion 50 is removed, the second perforation 49 is located in the arrow C direction (FIG. 7) on the upper end side of the individual packaging box front surface 41 with respect to the ripper portion 50. It is broken by being pulled, and the portion surrounded by the first and second perforations 48, 49 is opened. As a result, the individual packaging box 40
A required opening for taking out the sheet-shaped heat-sensitive recording material 10 packaged in the moisture-proof light-shielding bag 30 is formed in the upper part of the front surface 41 of the.

The operation of the embodiment will be described. The sheet-shaped heat-sensitive recording material 10 contained in the inner box 20 is a moisture-proof light-shielding bag 3
It is packaged by 0 and accommodated in the individual packaging box 40. Inner box 2
0 is a sheet-like thermal recording material 10 in which a plurality of white colored polypropylene sheets having dust-free property are stacked.
The sheet-shaped thermosensitive recording material 10 is formed so as to be able to accommodate and covers the front and back surfaces and four side surfaces of the accommodated sheet-shaped thermal recording material 10. The humidity control member 11 provided on the upper surface of the lid 21 of the inner box 20 in FIG.
Shows the humidity inside the moisture-proof light-shielding bag 30 at a temperature of 23 ° C by 45 ±.
It is adjusted to 15% RH, preferably 45 ± 10% RH, particularly preferably 45 ± 5% RH.

FIG. 9 is a perspective view showing an inner box 60 of the sheet-like thermosensitive recording material package according to the second embodiment of the present invention. In this figure, the bottom portion 61 of the inner box 60 shown in FIG.
Upper and lower side portions 62 and left and right side portions 63 are integrally formed on both the left and right middle and upper edge portions, and a lid portion 65 is integrally formed on the upper edge portion of the hinge portion 64 of the inner box 60. It is provided. Other configurations are the same as those in the first embodiment.

Next, as a comparative example of the individual packaging box 40 of each of the above-mentioned embodiments, an inlay type individual packaging box 7 is shown in FIGS.
Indicates 0. In the individual packaging box 70, the outer box 73 is fitted so as to cover the outer surface of the inner box 72 excluding the fitting part 71, and the lid 74 is detachably fitted to the fitting part 71 of the inner box 72. To be done. The inner box 72 is made of cardboard,
The outer box 73 and the lid 74 are made of coated balls. In such an individual packaging box 70, as compared with the individual packaging box 40 of the present embodiment, the box-making property is significantly inferior, a large amount of labor and time are required for manufacturing, and the cost is increased.

As described above, according to each of the above-described embodiments, the sheet-shaped heat-sensitive recording material 10 housed in the inner boxes 20, 60 is packaged by the moisture-proof light-shielding bag 30, and the inner boxes 20, 6 are provided.
0 is a sheet-like thermal recording material 10 in which a plurality of white colored polypropylene sheets having dust-free property are stacked.
Of the sheet-shaped heat-sensitive recording material 10 that covers the front and back surfaces and the four side surfaces. Also, the inner box 20,
The humidity control member 11 provided on the upper surface in FIG. 1 of the lid portions 21 and 65 of the humidity controller 60 controls the humidity in the moisture-proof light-shielding bag 30 to 23 ° C./4.
Adjust to 5 ± 15% RH. Therefore, the humidity in the moisture-proof light-shielding bag 30 can be adjusted to a predetermined value and the dust generation can be suppressed as much as possible while the cost can be reduced with a relatively simple structure. . As a result, the photographic performance of the sheet-shaped thermal recording material 10 can be favorably maintained for a long period of time.

Next, the results of evaluation of the operability and workability of the sheet-shaped thermosensitive recording material packages of the first and second embodiments are evaluated, and the results are evaluated for the sheet-shaped thermosensitive recording material packages of the first to fifth comparative examples. The results are shown in Table 2.

[0023]

[Table 2]

In Table 2, the sheet-like thermosensitive recording material package according to the first embodiment has good operability such that the sheet-like thermosensitive recording material is hard to touch and difficult to drop when opened. Is understood. As for workability, both workability in the machining process and workability on the user side were good, and the overall evaluation was high. It is understood that the sheet-like thermosensitive recording material package according to the second embodiment also has good operability in that the sheet-like thermosensitive recording material is hard to touch and difficult to drop when opened. The workability on the user side is also good. However, because the inner box is integrally molded,
The workability in the processing process was poor and the overall evaluation was low.

On the other hand, among the sheet-like thermosensitive recording material packages of the first to fifth comparative examples, the first comparative example not using the contact ball and the first contact ball formed in the substantially U-shape. 2 In the case of the comparative example, there was a problem that the sheet-shaped thermosensitive recording material was easily dropped when opening.

As for the sheet-like thermosensitive recording material package of the third comparative example, as described in the prior art,
In order to avoid a change in the density of the sheet-shaped heat-sensitive recording material due to uneven humidity in the moisture-proof light-shielding bag, the edge of the sheet-shaped heat-sensitive recording material must be strongly pressed by a contact ball. Therefore, when the sheet-like heat-sensitive recording material is loaded into the magazine, the frictional force generated between the moisture-proof light-shielding bag and the magazine becomes large, and the force required to pull out the moisture-proof light-shielding bag from the magazine becomes large. Yes, the workability on the user side was rated low.

In the sheet-like heat-sensitive recording material package of the fourth comparative example, the left and right side portions of the inner box are provided only on the rear half of the left and right edges of the bottom portion in the insertion direction, and the upper side. No section is provided. In such a sheet-shaped thermal recording material package, there is a problem that the sheet-shaped thermal recording material is easily touched and easily dropped when opened.

In the sheet-like thermosensitive recording material package of the fifth comparative example, although the upper part is provided at the bottom of the inner box,
Similar to the fourth comparative example, the left and right side portions of the inner box are provided only on the rear half of the left and right edge portions of the bottom portion in the insertion direction. Therefore, there is a problem that the sheet-shaped thermosensitive recording material is easily touched and easily dropped when opened.
There was also a problem with workability on the user side.

[0029]

As described above, according to the present invention, the sheet-shaped heat-sensitive recording material contained in the inner box is packaged in the moisture-proof light-shielding bag, and the inner box is made of a plurality of dust-free materials. The sheet-like heat-sensitive recording material stacked is formed so as to be able to be accommodated, and covers the front and back surfaces and at least a part of four side surfaces of the accommodated sheet-like heat-sensitive recording materials. Further, at a position in the inner box that does not interfere with the sheet-shaped thermal recording material,
A humidity control member is provided to adjust the humidity inside the moisture-proof light-shielding bag to 23 ° C and 45 ± 15% RH. Therefore, the humidity in the moisture-proof light-shielding bag can be adjusted to a predetermined value and the dust generation can be suppressed as much as possible while the cost can be reduced with a relatively simple structure. This makes it possible to maintain good photographic performance of the sheet-shaped heat-sensitive recording material for a long period of time.

[Brief description of the drawings]

FIG. 1 is a perspective view showing a sheet-like thermosensitive recording material package according to a first embodiment of the present invention.

FIG. 2 is a perspective view showing an inner box of the sheet-shaped heat-sensitive recording material package of FIG.

FIG. 3 is a plan view showing a developed state of the inner box of FIG.

FIG. 4 is a perspective view showing an opened state of the moisture-proof light-shielding bag of the sheet-like heat-sensitive recording material package of FIG.

FIG. 5 is a plan view showing an unopened state of the moisture-proof light-shielding bag of FIG.

6 is a perspective view showing a humidity control member of the sheet-like heat-sensitive recording material package of FIG. 1. FIG.

FIG. 7 is a perspective view showing an individual packaging box.

FIG. 8 is a plan view showing a developed state of the individual packaging box of FIG.

FIG. 9 is a perspective view showing an inner box of the sheet-like thermosensitive recording material package according to the second embodiment of the present invention.

FIG. 10 is a perspective view showing a comparative example of an individual packaging box.

11 is a plan view showing a developed state of the individual packaging box of FIG.

FIG. 12 is a perspective view showing a conventional sheet-shaped thermosensitive recording material package.

[Explanation of symbols]

 10 Sheet-like heat-sensitive recording material 11 Humidity control member 20 Inner box 21 Lid 30 Moisture-proof and light-shielding bag 40 Individual packaging box

Claims (1)

[Claims] 1. A front surface and a back surface and four side surfaces of a sheet-shaped thermosensitive recording material (10) which is formed of a dust-free material so as to accommodate a plurality of sheet-shaped thermosensitive recording materials (10) stacked. An inner box (2
0) and a moisture-proof light-shielding bag (3) which has moisture-proof and light-shielding properties and which wraps the sheet-shaped heat-sensitive recording material (10) contained in the inner box (20).
0) and the inner box (20) at positions where they do not interfere with the sheet-shaped heat-sensitive recording material (10), and the humidity inside the moisture-proof light-shielding bag (30) is adjusted to 23 ° C and 45 ± 15% RH. A sheet-like thermosensitive recording material package, comprising: a member (11).