JP2000344288A - Covered double bag for disk - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a disk bag where a disk can be easily inserted or taken out, which gently protects a disk input face, is not bulky, has a file function, can be carried and shipped as is, indicates the disk clearly from outside, and saves resources. SOLUTION: This relates to a covered double bag for a disk. The main body of the double bag is made by inserting a non-woven fabric 3 between a front face 1 and back face 2 made of a clear or semi-transparent thin synthetic resin sheet or film, by fitting the bottom edge and both sides of the same for forming a double bag body, by extending the open edge of the back face 2 in the same width for forming a binding margin 4 and a bag opening cover 5 divided by a folding line 6 one after another, and by forming body margin and cover with a punch hole at a position able to be bound with a widely known binding device. The main body can be inserted integrally between a double folding cover, or a mount or a top mount can be inserted in the main body double bag for forming a series of double bag main bodies with a mount or a cover.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a case for storing various types of discs used in the field of reproducing music and images and the field of personal computers and computers.

[0002]

2. Description of the Related Art As a conventional disk case, a plastic hard case and a file case capable of storing a plurality of disks are typically known.

[0003]

In the conventional hard case, a large amount of plastic material is used, which wastes resources and is bulky, so that a storage space is required. Also, the file case is used to select the target disk,
It takes time to flip through and select from a number of files, and when you carry it, you take an extra disc with you. In addition, the cases other than these are mainly designed for the purpose of protecting the disk, and there is a problem that they do not have user convenience, storage file characteristics, and convenience of carrying and shipping.

SUMMARY OF THE INVENTION It is an object of the present invention to provide a disk case which is simple, has no bulk and is compact, is convenient for storage files, is convenient to carry and ship, and can save resources.

[0005]

In order to achieve the above-mentioned object, in the disk case of the present invention, the front surface (1) and the rear surface (2) slightly longer than the front surface (1) are made of a transparent or translucent thin synthetic material having the same width. Made of resin sheet or film, a nonwoven fabric (3) of the same size as the back surface (2) is interposed between them,
The bottom edge and both side edges are combined to form a double bag body, the opening edge of the back surface (2) extends over the entire width, and a folding line (4) is formed at the border between the binding margin (4) and the bag mouth cover (5). 6) are successively inserted, and the object having a punched hole (7) in both sides at the folding streaks (6) is used as a double bag body for a disk. It was developed with a body, mount and cover.

[0006] The first is the double bag body for a disc described above.
An adhesive seal layer (8) is provided on the upper end of the surface (1), and a release film (9) covering the adhesive seal layer (8) is attached to the adhesive seal layer (8).

The second is that the above-mentioned double bag body for a disc is
The cover (10) made of a cardboard or a synthetic resin sheet that has been folded in two is sandwiched, bound and integrated, and near the back of the front and back cover (10), an open / close folding line (11) and a cover punch are provided. This is a double bag main body for a disk provided with a hole (12) with a cover.

The third is the double bag main body for the main body disk and the first specification, in which the bag between the back surface (2) and the non-woven fabric (3) fits almost completely to the folding line (6). The backing sheet (13) is provided with a backing sheet (14) and a backing sheet punching hole (15) at the top, and is sandwiched between the two sheets, so that the double bag body for a disc is provided with a backing sheet.

The fourth is the above-mentioned third specification, in which the upper mount (16), which fits almost right before the mount folding line (14), is inserted into the bag between the nonwoven fabric (3) and the surface (1). This is a double-sided disk body with a double-sided backing.

[0010] In all of the above series of specifications, a double bag body for a disc and a backing sheet, which are constructed without any or all of the nonwoven fabric (3), the punch holes (7), and the backing punch holes (15). -Specification with cover may be used.

The transparent or translucent thin synthetic resin sheet or film used in the present invention is preferably made of a heat-fusible synthetic resin such as polypropylene, polyethylene or nylon, and the nonwoven fabric (3) is made of the same material. Things are important in the need for mutual heat sealing. Also non-woven fabric (3)
Instead, another material that can protect the disk input surface and can be heat-sealed may be used. Mount (13), Mount (16)
Most commonly, cardboard is used, but a hard synthetic resin sheet or the like may be used. The pressure-sensitive adhesive seal layer (8) is formed by double-sided tape processing or a vinyl acetate adhesive, and the release film (9) is preferably a synthetic resin film such as polyethylene.

[0012]

As described above, a bag is formed between the front surface (1) and the nonwoven fabric (3) and between the back surface (2) and the nonwoven fabric (3).
Since it is a heavy bag, two discs can be inserted so that the input surface of the disc comes into contact with the nonwoven fabric (3), and the nonwoven fabric (3) softly protects the disc input surface. Since the front surface (1) and the back surface (2) are made of a transparent or translucent thin synthetic resin sheet or film, the disc printing surface facing the surface can be clearly indicated from outside.

Since the folding line (6) is placed on the back side of the material, the bag mouth cover (5) can be easily folded over to the front side and can be fitted to the top of the surface (1), so that the opening of the double bag body can be opened. The part can be closed. When the surface (1) has been subjected to double-sided adhesive processing, the release film (9) is peeled off by hand to expose the adhesive seal layer (8), and the folded bag mouth cover (5) is pressed against the surface (1). And can be sealed.

At the same time, the binding margin (4) and the bag mouth cover (5)
Is folded, according to known binders and binding tools, etc.
By combining the punch holes (7) formed in both target positions, the double bag body for the disc can be filed in a known binder and the like.

In the case where the cover (10) is attached, the cover (10) covers the disk double bag main body with a cover.
Although the disk can be protected from external pressure, the disk printing surface cannot be clearly indicated from outside the cover (10). But the cover (1
When the 0) is turned, the printed surfaces of the two discs are the front (1)
Because it is in contact with the back surface (2), it can be clearly indicated from the outside, and the cover (10) clearly shows the contents of the disc.

Since the disc with the backing (13) is put in a bag between the surface (1) and the nonwoven fabric (3), the disc input surface which needs to be particularly protected is the backing (1).
3) and the nonwoven fabric (3) can protect from external pressure, and the disc printing surface can be clearly indicated from the outside in contact with the surface (1). Of course, another disc may be inserted in the bag between the backing (13) and the nonwoven fabric (3), but the disc printing surface cannot be clearly specified from the outside. However, since the contents of the disc are specified on the mount (13), it can be understood.

The material sandwiched between the mount (13) and the upper mount (16) is the nonwoven fabric (3) and the mount (13) and the upper mount (1).
Discs are put in each bag during 6) and the backing (13)
The upper disc (16) and the nonwoven fabric (3) can protect both discs from external pressure, but in this case, the printed surface of the disc cannot be specified from the outside, but the disc contents are specified on the mount (13) and the upper mount (16). I understand.

The cover (10) and the mount (13) also have the cover punch (12) and the mount punch (1) at the same position so as to match the punch (7) of the double bag body for the disc.
Since 5) is open, it fits perfectly and can be filed with a known binder and binding tool. In addition, files can be placed in a file box or a case shelf, etc., and this method is preferable for a file in which each punch hole is not formed.

[0019]

Embodiments will be described with reference to the drawings.
In FIG. 1, the surface (1) is slightly shorter than the disc diameter,
Subsequently, the back surface (2) is slightly longer than the front surface (1) so that the disc can be covered, and further extended, and the binding margin (4) has an appropriate length to be bound with a binder, and then the folding line (6). With the full width in between, and the bag mouth cover (5) folds back at the fold line (6) and continues to be long enough to cover the top of the surface (1), all of which have the same width to accommodate the disc. Transparent or translucent thin synthetic resin or film is sequentially arranged and folded in two at the boundary between the front surface (1) and the back surface (2). Between the two folds, the back surface (2)
In general, a nonwoven fabric (3) having substantially the same size as the above is sandwiched between the folded edges, and both side edges are heat-sealed by heat sealing or the like to form a double bag. However, if desired, the surface (1)
The length of the back surface (2) and the nonwoven fabric (3) may be changed, or the front surface (1) may be cut separately and the bottom edge and both side edges may be heat-sealed to form a double bag. The creases (6) are cut in full width on the back side of the material, but may be perforated, etc., so that the bag mouth cover (5) can be easily turned back on the surface (1) and doubled. The bag opening can be closed. A punching hole (7) formed in the binding margin (4) and the bag mouth cover (5) is provided at a position corresponding to a well-known binder and binding tool so that when the two are folded together at the folding line (6), the folding line is formed. (6) Open to the left and right target.

In the embodiment shown in FIG.
An adhesive seal layer (8) having an appropriate width over the entire surface (1) is provided within the area covered by the bag mouth cover (5) on the surface (1) of the heavy bag body. Since the wide release film (9) is adhered, the release film (9) is peeled off by hand at the time of use, and the tip of the bag mouth cover (5) covers the adhesive seal layer (8) so that it can be adhered and sealed.

In the embodiment shown in FIG. 4, a cardboard or a hard synthetic resin sheet or the like is folded evenly by a cover folding line (19) so that the front cover (17) is slightly larger than the disk double bag body. ) And the back cover (18), and the opening / closing crease (11) is inserted in a full width at a position near the back surface (2) of the binding margin (4), and the cover punch is positioned at a position corresponding to the punch hole (7). The hole (12) is penetrated. The double bag body for the disc is sandwiched with its back in the cover (10) formed as described above, and stapled (20) around the open / close crease (11) together with the cover (10) to be integrated. Do not stop it with a stapler, but use the adhesive to bind the binding (4) or the back (2) to the back cover (1).
5) may be adhered to the disk double bag main body with a cover in this manner.

In the embodiment shown in FIG.
In the bag between the nonwoven fabric (3) and the back surface (2) of the heavy bag body, a cardboard (13) made of a cardboard or a hard synthetic resin sheet that fits almost perfectly to the folded line (6) is sandwiched. The mount (13) has a mount line (14) with a full width at a position slightly protruding from the nonwoven fabric (3), and further has a mount punch hole (15) at a position corresponding to the punch hole (7). This is a double bag body with a mount.

In the embodiment shown in FIG. 7, in the bag between the surface (1) and the non-woven fabric (3), the backing line (14) of the backing sheet (14) is also provided for the above-mentioned double-bag body for disks. The upper mount (16), which fits perfectly to the front, is inserted.
The double bag body for a disc has a double-sided backing specification.

In the above-mentioned series of the double bag body for disk and the specification with the backing sheet and the cover, the nonwoven fabric (3) and each punch hole may be omitted as desired, and
Although the hole has a circular shape, a multi-hole or other shaped hole suitable for the type of a known binder and other binding devices may be used.

[0025]

Since the present invention is configured as described above, it has the following effects.

Since it is a double bag, there is an effect that two disks can be inserted, and since it is made of a transparent or translucent thin synthetic resin sheet or a film and a non-woven fabric, there is an effect that it is not bulky. In addition, there is also a resource saving effect because the amount of material used is small.

Since the surface that can be seen from the outside is a transparent or translucent thin synthetic resin sheet or film surface, there is an effect that the disc printing surface and the mount (13) and the upper mount (16) can be clearly shown from outside, and the disc Since the nonwoven fabric (3) in contact with the input surface is made of soft fiber, it has an effect of protecting the disk input surface cleanly and softly.

The bag opening cover (5) has the effect of closing the opening of the bag body and preventing dust and the like from entering, and the effect of preventing the disc from falling off when the surface (1) is adhesively sealed to the surface (1) by double-sided adhesive processing. There is.

In the case of using the cover (10), the mount (13), and the upper mount (16), the material is hard and thick, so that it does not receive the external pressure and does not reach the disk, so that there is no fear of damaging the disk. is there. Therefore, there is an effect that can be carried out as it is for carrying and shipping.

Each double bag body for the disc and the backing
Each punched hole included in the specification with a cover has an effect of being able to file with a known binder and a jig, and has an effect of being able to store in a file box, a file shelf or the like by being classified according to classification.

[Brief description of the drawings]

FIG. 1 is a plan view showing an embodiment of a double bag body for a disk.

FIG. 2 is a plan view showing an embodiment in which a surface (1) in FIG. 1 is subjected to double-sided adhesive processing.

FIG. 3 is an enlarged sectional view taken along the line AA ′ in FIG. 2;

FIG. 4 is a plan view showing an embodiment in the case of a double bag main body for a disk with a cover.

FIG. 5 is a plan view showing an embodiment in a case where the double bag main body for a disc is provided with a mount.

FIG. 6 is an enlarged sectional view taken along line B-B 'in FIG.

FIG. 7 is a plan view showing an embodiment in the case of a double bag main body for a disc with a double-sided backing sheet.

8 is an enlarged sectional view taken along line C-C 'in FIG.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Front surface 2 Back surface 3 Nonwoven fabric 4 Margin 5 Bag opening cover 6 Folding line 7 Punch hole 8 Adhesive seal layer 9 Release film 10 Cover 11 Opening / closing line 12 Cover punch hole 13 Backing paper 14 Backing paper hole 15 Backing paper hole 17 Front cover 18 Back cover 19 Cover folding line 20 Stapler

[Procedure amendment]

[Submission date] December 24, 1998 (1998.12.
24)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claim 6

[Correction method] Change

[Correction contents]

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] Claim 7

[Correction method] Change

[Correction contents]

[Procedure amendment 3]

[Document name to be amended] Statement

[Correction target item name] 0010

[Correction method] Change

[Correction contents]

[0010] And the double bag body for the disk described above.
And, in each series of specifications, put the nonwoven fabric (3)
It may be configured without embedding, and without providing each punch hole
It may be configured.

[Procedure amendment 4]

[Document name to be amended] Statement

[Correction target item name] 0012

[Correction method] Change

[Correction contents]

[0012]

As described above, since a double bag body is formed as a bag between the front surface (1) and the nonwoven fabric (3) and between the back surface (2) and the nonwoven fabric (3), a disk is input to the nonwoven fabric (3). Two discs can be inserted so that the surface is in contact, and the nonwoven fabric (3) softly protects the disc input surface. Since the front surface (1) and the back surface (2) are made of a transparent or translucent thin synthetic resin sheet or film, the disc printing surface and the above-mentioned mounts facing it can be clearly indicated from outside.

[Procedure amendment 5]

[Document name to be amended] Statement

[Correction target item name] 0019

[Correction method] Change

[Correction contents]

[0019]

The embodiment will be described with reference to the drawings. In FIG. 1, the front surface (1) is slightly shorter than the disk diameter, and the back surface (2) is slightly longer than the front surface (1) so that the disk can be covered. The binding margin (4) is extended to have an appropriate length to be bound with a binder and a folding bar (6) is inserted with the full width therebetween, and the bag mouth cover (5) is folded with the folding bar (6). Fold back and take up a length that can cover the top of the surface (1), all of which are sequentially arranged on a single transparent or translucent thin synthetic resin sheet or film of the same width that the disk has, and the surface (1) Is folded in two at the border between the back and back (2). Between the two folds, a non-woven fabric (3) of approximately the same size as the back (2) is sandwiched in accordance with the folding edge, and both side edges are heat-sealed or the like. It is common to form a double bag by heat fusion. However, the length of the front surface (1), the back surface (2) and the nonwoven fabric (3) may be changed as desired, and the front surface (1) is cut separately and the bottom edge and both side edges are heat-sealed to form a double layer. A bag may be formed. The creases (6) are cut in full width on the back side of the material, but may be perforated, etc., so that the bag mouth cover (5) can be easily turned back on the surface (1) and doubled. The bag opening can be closed. The punching hole (7) formed in the binding margin (4) and the bag mouth cover (5) is positioned at a position corresponding to a well-known binder and binding tool so as to be perfectly fitted when the two are folded by the folding line (6). (6) Open to the left and right target. ────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] June 22, 2000 (2000.6.2)
2)

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction contents]

[Document Name] Statement

[Title of the Invention] Double bag for disc with cover

[Claims]

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a case for storing various types of CD and DVD discs used in the field of reproducing music and images and the field of personal computers and computers.

[0002]

2. Description of the Related Art As a conventional disk case, a plastic case and various file cases capable of storing a plurality of disks are known.

[0003]

In the conventional plastic case, a large amount of plastic material is used, which wastes resources and is bulky, so that a storage space is required. In addition, in order to select the target disc, it takes time to pull out each file case one by one from each file case, and it has user convenience, storage file characteristics, portability, shipping convenience, etc. No
Moreover, there was an expensive problem.

SUMMARY OF THE INVENTION An object of the present invention is to provide an inexpensive disk case which is simple, has no bulk and is compact, is convenient for storing files, is convenient for carrying and shipping, and can cope with resource saving.

[0005]

Means for Solving the Problems In order to achieve the above-mentioned object, the disk case of the present invention is invented by considering an inexpensive, thin, disk-protective material and mass productivity. . The means is that the front surface (1) and the slightly longer back surface (2) are made of a transparent or translucent thin synthetic resin sheet or film of the same width, while the nonwoven fabric (3) of the same size as the back surface (2) Are sandwiched, their bottom edges and both side edges are joined together to form a double bag,
Further, the back surface (2) is extended from the top edge by the full width, and a folding streak (6) is inserted at the border with the binding margin (4), and a bag mouth cover (5).
Are sequentially provided, and the bag mouth cover (5) is folded on the surface (1) by the folding streaks (6) to form the entire shape of the bag body. The bag is folded into two pieces by folding a cardboard or synthetic resin sheet with a cover crease (9), and is bound and integrated into a cover (7) with an open / close crease (8) near the back (10). Things.

[0006]

In the double bag for a disk with a cover configured as described above, when the cover folding line (9) and the opening / closing folding line (8) are raised almost at a right angle, the cover (7) is turned back, and the opening / closing folding line is opened. The cover (9) can be easily opened with the streaks (8) and the bag can be exposed. Since the bag body is sandwiched between the cover (7) and integrated (10), it does not fall off from the cover (7) and covers the external pressure.

The bag body has two bags on the front side (1) side and the back side (2) side using the non-woven fabric (3) as a partition, the disk recording surface facing the non-woven fabric (3), and the disk printing surface facing the front surface ( 1)-Two discs can be sealed facing the back surface (2).
At that time, the surface (1) was slightly shorter than the nonwoven fabric (3),
Since the back surface (2) is extended at the binding margin (4), the bag mouth can be easily opened, and the disc mouth can be easily sealed because there is ample insertion space in the bag mouth. Further, since the bag mouth cover (5) is folded over the binding margin (4) and the surface (1) by the folding line (6), the two bag mouths can be freely opened and closed by the bag mouth cover (5).

[0008]

Embodiments of the present invention will be described with reference to the drawings based on examples. In FIG. 1, the back surface (2) and the non-woven fabric (3) are of the same size that is suitable for the disc to fit, and the back (2) has a binding margin (4) from the top edge with a suitable length that can be bound. The bag mouth cover (5) is extended in the entire width, and further has a folding streak (6) at the boundary, and extends to reach the top of the surface (1). Although the folding line (6) is provided with a cut line, it may be a perforated line or the like, and when it is installed in the cover (7), as shown in FIG. 5) is folded over the surface (1). The front surface (1) may have the same width as the back surface (2) and the nonwoven fabric (3), a slightly shorter length, and a length protruding from the upper portion of the disk.

As shown in FIGS. 1 and 2, a nonwoven fabric (3) is sandwiched between a front surface (1) and a back surface (2), and the bottom edge and both side edges are integrated to form a double bag. However, as an integration method, both sides are melt-sealed and the bottom edge is shown in FIG.
In general, the front surface (1) and the rear surface (2) are folded and provided as shown in FIG. However, other measures such as heat sealing and high frequency sealing may be used.

The front surface (1) and the back surface (2) are generally made of the same material, but may be changed. A transparent synthetic resin film such as polypropylene, polyethylene, or nylon is used. A sheet or the like may be used. The non-woven fabric (3) is also made of the same synthetic resin fiber having good fusion-adhesion with the above-mentioned material. Instead of the nonwoven fabric (3), a material having a disk protection property such as synthetic paper, a satin synthetic resin film or the same sheet can be used.

As shown in FIG. 4, the cover is folded in two at the cover crease (9), the contents are separated in thickness from the cover crease (9), and the opening / closing crease (8) is inserted in parallel with the full width. The cover (7) is slightly larger than the bag. The cover crease (9) and the opening / closing crease (8) are generally formed by Thomson scoring, but may be formed by cutting or heat scoring.

In order to mount the bag inside the cover (7),
The folded line (6) of the bag body is aligned around the folded line (9), and the back surface of the bag mouth cover (5), the binding margin (4), and the cover (7) are integrated near the folded line (6) (10). ). In the case of thick paper, the method is stopped with a stapler or an eyelet, but in the case of a synthetic resin sheet, as shown in FIG. 4, fusion (eg, ultrasonic sealing, heat sealing, high frequency sealing) or the like can be integrated (10). Further, although one bag is mounted in FIG. 4, any number of bags may be mounted in layers.

[0013]

The present invention is configured as described above, and has the following effects.

The double bag allows two disks to be enclosed, and the inexpensive and thin material enables low cost and resource saving. Also, when saving a large amount of disk,
The storage space is compact and saves space.

When the disk is sealed, the disk recording surface faces the soft nonwoven fabric (3), so that the disk is hardly scratched and has a large protective effect. Also, since the disc printing surface faces the front surface (1) and the back surface (2) of the transparent synthetic resin film, there is an effect that the clear surface can be clearly indicated from the outside.

Since both bag mouths of the double bag body can be closed by the bag mouth cover (5), there is an effect that the disc does not fall off and dust and the like hardly enter.

Since the bag is further covered with the cover (7), the effect of protecting the bag from external pressure is increased, and it is also effective for carrying and shipping. In addition, since there is an effect that the contents recorded on the disc and the like can be clearly written on the cover (7), a file search can be easily performed.

[Brief description of the drawings]

FIG. 1 is a front view of a double bag mounted in a cover (7).

FIG. 2 is a cross-sectional view taken along line A- in FIG.
The enlarged sectional view on the A 'line.

FIG. 3 shows a double bag formed by folding the bottom edge of FIG.
The enlarged sectional view on the A 'line.

FIG. 4 shows a disk 2 with a cover according to the present invention, which is formed by integrating (10) a bag body into a cover (7) made of a synthetic resin sheet.
The perspective view of a heavy bag.

[Description of Signs] 1 front surface 2 back surface 3 non-woven fabric 4 binding margin 5 bag mouth cover 6 folded line 7 cover 8 openable folded line 9 cover folded line 10 integrated

[Procedure amendment 3]

[Document name to be amended] Drawing

[Correction target item name] All figures

[Correction method] Change

[Correction contents]

[Fig. 1]

FIG. 2

[Fig. 3]

[Fig. 4]

Claims (7)

[Claims] 1. A front face (1) and a slightly longer back face (2) are made of a transparent or translucent thin synthetic resin sheet or film of the same width, between which a non-woven fabric (3) of the same size as the back face (2). ) Is sandwiched over the entire surface, and the bottom edge and both side edges are joined to form a double bag body, and the opening edge of the back surface (2) is extended by the full width, and the binding margin (4) and the bag mouth cover ( A double bag body for a disc, in which a folding line (6) is inserted at the boundary of 5) and continues sequentially, and a punch hole (7) is opened in both of the objects at the folding line (6). 2. An adhesive seal layer (8) on an upper end of the surface (1).
2. The double bag body for a disk according to claim 1, wherein a release film (9) covering the main body is provided on the adhesive seal layer (8). 3. The disk double bag main body according to claim 1, which is sandwiched into a cover (10) made of a cardboard or a synthetic resin sheet which is folded and folded, and integrated by binding. In the vicinity of the back of 10), there is a folding line (1).
1) A double bag body for a disk with a cover provided with a cover punch hole (12) and a cover punch hole (12). 4. A disk 2 according to claim 1 and claim 2.
In the bag between the back surface (2) and the nonwoven fabric (3) of the heavy bag body,
Mount (13) that fits almost perfectly to the folded line (6)
However, a double bag body for a disc is provided with a backing, which is provided with a backing line (14) and a backing punch hole (15) at the top. 5. An upper backing sheet which fits almost completely up to the backing line (14) in a bag between the nonwoven fabric (3) and the surface (1), which is a specification of the backing sheet of the double bag body for a disc according to claim 4. (1
6) Double-sided disk body with double-sided backing, sandwiched between. 6. A double bag main body for a disk, which is configured without sandwiching a nonwoven fabric (3), and a specification with a mount and a cover. 7. A double-disk main body for a disk and a backing sheet / cover specification without punching holes.