JPS6256945A - Packing method for radiation image conversion panel - Google Patents

Abstract

PURPOSE:To improve the efficiency of packing operation and to reduce the cost by clamping a panel with a self-supporting sheet material composed of a top and a reverse protection part and a folded part and packaging its outside with a synthetic resin film. CONSTITUTION:The top and reverse protection parts A and B which constitute the light shielding self-supporting plastic sheet material 11 are joined together by a folding joint part C in an opening/closing state and the panel 12 is clamped with the sheet 11 across the buffer member 16; and its peripheral edge part is joined by a lock member 13 such as a fastener and its further outside part is packaged hermetically with the synthetic resin film 15. The sheet material 11 has superior mechanical strength, and the film 15 has moisture proof property; and the package has superior storage quality and durability and the packing operation is mechanized, so the efficiency of the operation is improved and the cost is reduced.

Description

DETAILED DESCRIPTION OF THE INVENTION [Field of the Invention] The present invention relates to a method of packaging a radiation image conversion panel used for recording and reproducing radiation image information using a stimulable phosphor.

[Description of Prior Art] Conventionally, as a method of obtaining a radiation image as an image, so-called radiography is used, which uses a combination of a radiographic film having an emulsion layer made of a silver salt photosensitive material and an intensifying screen. law is being used.

In recent years, as an alternative to the above-mentioned radiographic method,
For example, a method of recording and reproducing radiation image information using a stimulable phosphor as described in Japanese Patent Application Laid-Open No. 55-12145 Kasa has been developed and is attracting attention. This method is usually carried out using a radiation image conversion panel containing a stimulable phosphor, and the stimulable phosphor of the panel absorbs the radiation transmitted through the subject or the radiation emitted from the subject.

Then, by exciting this phosphor with electromagnetic waves (excitation light) such as visible light and infrared rays, the radiation energy accumulated in the phosphor is released as fluorescence (stimulated luminescence), and this fluorescence is used as photoelectric light. The radiation image of the subject or subject is reproduced as a visible image or information expressed by numbers (ti, symbols, etc.) based on the electrical signals.

The above radiation image information recording and reproducing method has the advantage that a radiation image with a rich amount of information can be obtained with a much lower radiation dose than when conventional radiography is used. Therefore, this radiation image information recording PT production method has a very high utility value especially in direct medical radiography such as xmm shadows for the purpose of medical diagnosis.

The radiation image conversion panel does not ultimately record image information on itself, but temporarily carries image information in order to store images, etc., on a separately prepared final recording medium as described above. It is something.

A radiation image conversion panel generally has a structure in which a phosphor layer made of the stimulable phosphor and a binder is laminated on a support E, and is also called a stimulable phosphor sheet. Generally, panels are
It has a sheet-like shape such as a rectangle or iE square, and its side length is about 20 to 80 cm, and the thickness is about 0.5 to 1.
Normally, a protective film made of a transparent plastic material is attached to the surface of the phosphor layer for the purpose of preventing physical deterioration and chemical alteration of the phosphor layer.

During the manufacturing process of the radiation image conversion panel, the long radiation image conversion panel sheet is cut into standard shapes and classified into one category, and then undergoes packaging to finally become a product that can be shipped. Hitherto, most of the work involved in packaging these radiation image conversion panels has often been done by hand work because the shape of the packaging material is difficult to adapt to mechanical packaging processing.

The packaging material used to package the 1-number ray image conversion panel has an envelope-like shape with only one opening in the direction, and the material itself does not have self-supporting properties, so the It was difficult to package the product using this packaging material Ne'1. In other words, when using the above-mentioned packaging material, it is necessary to support the opening with one knife while inserting the panel with the other. The packaging material with 2 types was used, and the panels were wrapped in a single layer.

Furthermore, after storing the panel, it was necessary to seal the opening with adhesive tape or the like. Therefore, the length of L required for packaging work was longer than necessary.

In addition, the envelope-shaped packaging material used for the above-mentioned heavy packaging type IE is usually made of paper, but since it is itself an envelope, it consists of many components, such as synthetic resin. Reasons include that the material cost is relatively high because it is impossible to mold the body, and that accessories such as adhesives such as adhesive tape or other tools are required to completely encapsulate the body. This made it extremely uneconomical.

Furthermore, the above-mentioned packaging form is unlikely to be sufficient in terms of the protective strength, especially impact resistance, etc. that can be obtained when a radiation image conversion panel is packaged as a product, and may be difficult to obtain due to handling during transportation. There was a problem in that the panel surface was damaged. In addition, the package type 51 did not have a sufficient function in blocking the external atmosphere, and there was room for improvement.

Therefore, as one method to solve the problem described in 1., it is preferable to use packaging materials that have a certain degree of hardness, that is, self-supporting materials, so that at least there is no need to support them by hand during storage. It is conceivable, but radiation &
In view of the L2 characteristics of the single-image conversion panel or the workability of packaging 1, there is a demand for a packaging form that is more functionally superior.

[Object of the Invention] An object of the present invention is to provide a method for packaging a radiation image conversion panel that improves the efficiency of packaging work for a radiation image conversion panel and saves labor.

Another object of the present invention is to provide a method for packaging a radiation image conversion panel that simplifies the structure of the packaging material and reduces the cost of the packaging material.

In general, another object of the present invention is to provide a method for packaging a radiation image storage panel that has excellent properties such as impact resistance and moisture resistance.

[Summary of the Invention] The present invention provides a method for packaging a sheet-like radiation image storage panel containing a stimulable phosphor, in which: (I) a surface disposed on the side that protects the front surface of the panel; The panel is sandwiched between a self-supporting plastic sheet material formed by folding back at least one side a protection part and a back protection part disposed on a side that protects at least a part of the back surface of the panel. 1) and (n) sealing the self-supporting plastic sheet material sandwiching the panel using a synthetic resin film.

That is, the method for packaging a radiation image conversion panel of the present invention is as follows:
This method simplifies the packaging process by sandwiching the panel between a protective part of a self-supporting plastic sheet material formed by folding it back, and then packaging it in a sealed state using a synthetic resin film. This aims to stabilize the quality of the panels housed in them.

[Effects of the Invention] According to method V of packaging a radiation image conversion panel provided by the present invention, a self-supporting plastic sheet material is used to store the panel in a state in which it is sandwiched from both sides, and the whole is sealed as it is. Since the f-method is used for packaging, the efficiency of packaging work can be improved. Therefore, it becomes possible to package a large number of panels in a short time.

Furthermore, the packaging method of the radiation image conversion panel of the present invention uses a simplified form of the packaging material, and uses Item F material that is easy to mold. This is advantageous in that costs can be kept low, and as a result, manufacturing costs can be reduced.

In addition, the packaging method of the radiation image conversion panel of the present invention takes advantage of the excellent properties of the self-supporting plastic sheet material, especially its excellent mechanical strength such as impact resistance, and the packaging is carried out in a sealed state. The panel can be effectively protected because the synthetic resin film has insulation properties from the external atmosphere and particularly excellent moisture resistance. Therefore, damage to the panel surface that tends to occur when moving the panel during transportation etc. is prevented by IF, and it also prevents deterioration over time as it is almost unaffected by oxygen and moisture in the air. can do. Therefore, it is possible to improve storage stability and durability.

[Detailed description of the invention] A method of packaging a radiation image storage panel according to the present invention.

(I) A front surface protection section disposed on the side that protects the front surface of the radiation image conversion panel and a back surface protection section disposed on the side that protects at least a portion of the back surface of the panel are arranged on at least one side. (1) sandwiching the panel between folded self-supporting plastic sheet materials; and (■) sealing the self-supporting plastic sheet material sandwiching the panel with a synthetic resin film. It is characterized by consisting of the following two steps.

In other words, the method of packaging a radiation image storage panel provided by the present invention is carried out using a self-supporting plastic sheet material and a synthetic resin film for packaging this sheet material in a sealed state as its basic components. It is.

The force distribution method will now be explained in detail with reference to the accompanying drawings.

FIG. 1a is a perspective view showing an example of a packaging form constructed by the packaging method for a radiation image conversion panel provided by the present invention, and FIG. 1b is a t-plane sectional view taken along line I-X in FIG. 1a. It is.

In the figure, a self-supporting plastic sheet material 11 (hereinafter referred to as sheet material), which is one of the basic components used in the radiation image conversion panel packaging method of the present invention, is a radiation image conversion panel 12. It is composed of a surface protection part A that protects the front side of the holder, and a back protection part B that protects the back side of the holder. The surface protection part A and the surface protection part B of the sheet material are joined by a bending joint part C in an opening/closing manner.

The sheet material 11 may be manufactured by folding a single sheet at the bending joint C position to form a front protection part A and a back protection part B, or alternatively, the sheet material 11 may be manufactured by folding a single sheet at the bending joint C position to form a front protection part A and a back protection part B. The part A and the back protection part B may be manufactured by joining at the bending joint C, or either the front protection part A or the back protection part B and the bending joint C
It can also be used as the body.

The sheet material 11 has a surface protection part A and a back surface protection! It is preferable that the sheet material 11 has an area large enough to sufficiently cover the panel 12 when the panel 12 is sandwiched between the I portions B, and the sheet material 11 is such that the housed panel is exposed to ultraviolet rays "J". It is preferable that the sheet material 11 has a light-shielding property so as not to cause damage.Although it is necessary that the sheet material 11 has self-supporting properties, it is further preferable that the sheet material 11 has appropriate flexibility and excellent impact resistance. Examples include polyethylene, polyurethane, polyvinyl chloride,
Examples include sheets such as polypropylene. J
: Materials other than those mentioned above include paper and synthetic paper;
For example, a paper having an appropriate thickness may be used as a support material, and synthetic paper may be pasted on both or one side of the paper, but there is no particular limitation as long as it has the characteristics described in (h).

It is preferable that the sheet material 811 is provided with a fastener 1l-r one stage 13 such as a fastener consisting of four parts and a convex part as shown in the figure, for example, at the peripheral edge of the front protection part A and the back protection part B. .

By using such one stage of locking 13, the peripheral edges of the front protection part A and the back protection part B can be easily joined, and the panel can be held more firmly.

In addition to the above-mentioned fastener, for example, an adhesive tape or the like can be used for the 1f stage 13.

It is preferable that the locking means 13 be provided on the entire periphery in order to ensure a complete packaged state, but it is not necessarily necessary to provide the locking means 13 on the entire periphery.

The back protection part B of the sorting material was attached to display information on the quality and intended use on the back side of the panel (support side) when it is packaged. For example, an opening 14 may be provided in advance to correspond to the position of a display such as a bar code. By providing such an opening 14, the handler can see the packaged state (the final state of the lamipack described later). Even so, there is an advantage that information about the panel item 'f1, etc. can be quickly confirmed through the synthetic resin film and the opening 14.

Next, the synthetic resin film 15 which is another component of the present invention
It is preferable that the material has particularly excellent properties of transparency and abrasion resistance. Examples of such materials include triacetyl cellulose, oriented polypropylene, polycarbonate, and polystyrene.

Examples include polyvinyl alcohol and unplasticized vinyl chloride. In addition, as materials other than these, medium and low pressure polyethylene, polytetrafluoroethylene, cast polypropylene, soft polyvinyl chloride, hydrochloric acid rubber, high pressure polyethylene, etc. can also be used.

The radiation image storage panel is housed in the above-mentioned self-supporting plastic sheet material [Process I], and then further sealed in a synthetic resin film [Process II].

That is, the method of packaging a radiation image storage panel according to the present invention is carried out in a packaging form in which the synthetic resin film 15 seals the entire self-supporting plastic sheet material 11. In this case, it is preferable to package the synthetic resin film in close contact with the sheet material (so-called laminate pack) by adopting such a packaging method.

The panel housed in the sheet material is more firmly fixed, and the amount of air enclosed by the synthetic resin film is minimized, making it possible to further reduce chemical deterioration of the panel due to oxygen and the like.

For example, the f-stage for packaging in a sealed form using a synthetic resin film may be performed after the above-mentioned step (I).

This can be carried out using a commonly used mechanical packaging device.

When packaging the panel, at least the inner surface of the surface protection portion A of the sheet material 11 is provided with a buffer material 16 to prevent damage to the panel. Examples of the material 16 include foamed sheets of polyvinyl chloride, polyethylene, polystyrene, polyurethane, and the like. In addition to the J pair, materials with high cushioning properties such as rubber materials may be used, but there are no particular restrictions as long as they have such characteristics.

As shown in the figure, when the cushioning material is placed between both sides of the panel 16 (16a, 16b), it effectively protects the panel by absorbing external impact force, and further strengthens the panel from both sides. Due to the vibration of the panel,
The so-called "dance 1" is effectively suppressed and maintained in a stable state.

Two cushioning materials may be used by sandwiching the panel from both sides as shown in the figure, but they may also be provided only on the front surface of the panel (the side containing the stimulable phosphor) as described above. Or: - A sheet of large-sized cushioning material may be attached to almost the entire inside of the sheet material without cutting, and this may be used as a cushioning material for protecting both sides.

The cushioning material can also be attached in advance to the inner surfaces of the front protection part A and the back protection part B, or only to the front protection part A, using an adhesive or the like.

Another preferred embodiment of the self-supporting plastic sheet material used in the radiation image storage panel packaging method of the present invention includes the examples shown in FIGS. 2 to 4.

Each aspect will be explained below.

FIG. 2 is a perspective view of a sheet material 21 formed by extending and bending one end of the surface protection part A and mating with one end of the back protection part B.

This sheet material 21 is LF in the figure when the panel is stored.
Since it can be fixed from the end direction, a more stable packaging state can be obtained compared to the sheet material 11 in 1-, FIG. 1a. In this case, the overlapping position of the end of the front protection part A and one end of the back protection part B may be any position, but considering workability etc., it is located at the F part of one side as shown in the figure. It is preferable to set it as follows.

FIG. 3 is a perspective view of a sheet material 31, which is a further improvement of FIG. 2, and in which side protection portions E are further provided in the left-right direction of the surface protection portion A.

Since this sheet material 31 is fixed from all sides, it has excellent impact resistance and the panel can be easily stored. Therefore, a radiation image conversion panel packaged using this material will not fall off due to displacement or the like, and there is less chance of foreign matter being mixed in.

FIG. 4 shows a perspective view of a sheet material $441 formed into a bag shape having an opening in only one direction (arrow).

This type jE has a front protection part A, a back protection part B, and side protection parts F and G as bodies, so it has excellent impact resistance and can also prevent foreign matter from entering, making it possible to achieve a perfect packaging condition. .

As described above, each self-supporting plastic sheet material can be provided with IF means, openings, etc., as appropriate.

According to the method of packaging a radiation image storage panel using the self-supporting plastic sheet material and synthetic resin film of the present invention, the packaging process can be done in one hour less than in the past. That is, in the step (1) of storing panels in these sheet materials, each sheet material has self-supporting properties, so there is no need to support and hold the sheet material itself by hand to insert the panel. Sometimes one-sided operation (place the back protection part B facing upward,
This can be done by opening and closing the surface protection part A, etc.). Further, in the step (II), the sheet material containing the panel can be wrapped as it is in a compact shape using a synthetic resin film. Therefore, the above step (I)
, CU) can be a series of mechanized working steps.

As explained above, the radiation image conversion panel packaging method of the present invention allows the radiation image conversion panel to be packaged efficiently. And the packaging form fg obtained from this method is the physical property of the panel.

It is possible to prevent chemical deterioration, improve shelf life, and maintain panel quality. Furthermore, it has many advantages, such as making it possible to reduce manufacturing costs due to the simplification of packaging materials.

[Brief explanation of drawings]

FIG. 1a is a perspective view showing an example of a packaging form constructed by the radiation image conversion panel packaging method of the present invention. FIG. 1b is an elevational sectional view taken along line II in FIG. 1a. FIGS. 2, 3, and 4 are side views showing other configuration examples of the self-supporting plastic material used in the radiation image storage panel packaging method of the present invention, respectively. A: Surface protection portion B: Back protection portion C: Folding joint portion, E, F, G: Side protection portions 11.21, 31.41: Self-supporting plastic sheet material 12: Radiation image conversion panel 13: Locking Means 14: Opening 15: Synthetic resin film 16a, 16b: M shock material Patent applicant Tomi F Photo Film Co., Ltd. Representative Patent attorney Yasushi Yanagikawa Figure 1a Figure 1b

Claims (1)

[Claims] 1. A method of packaging a sheet-like radiation image conversion panel containing a stimulable phosphor, in which: (I) a surface protection disposed on the side that protects the front surface of the panel; sandwiching the panel with a self-supporting plastic sheet material formed by folding back on at least one side a back protection part arranged on a side that protects at least a part of the back surface of the panel; and (II) sealing the self-supporting plastic sheet material sandwiching the panel using a synthetic resin film. 2. The method for packaging a radiation image storage panel according to claim 1, wherein the self-supporting plastic sheet material has light-shielding properties. 3. The method for packaging a radiation image conversion panel according to claim 1 or 2, wherein a locking means is provided on the peripheral edge of the self-supporting plastic sheet material. 4. The method for packaging a radiation image storage panel according to claim 1, wherein the synthetic resin film has transparency. 5. The radiation image conversion according to claim 1 or 2, wherein the synthetic resin film for sealing the self-supporting plastic sheet material is in close contact with the sheet material. Panel packaging method. 6. The method for packaging a radiation image conversion panel according to claim 1 or 2, wherein a cushioning material is provided on the inner surface of at least the surface protection portion of the self-supporting plastic sheet material.