JPH0948485A - Disk housing case, and sticking and separating method for sheet for disk housing case - Google Patents

Abstract

PROBLEM TO BE SOLVED: To peel off an information-carrying sheet from a disk housing case with leftovers prevented from remaining after peeling-off. SOLUTION: The surface of a part on which an information-carrying sheet 3 is stuck is formed in coarseness, and adhesiveness of the information-carrying sheet 3 is weakened therewith as compared with a conventional method, and thereby the information-carrying sheet 3 can be separated easily. Thereby, on peeling off the information-carrying sheet 3 for the purpose of recycling, the information-carrying sheet 3 can be peeled off easily without leaving leftovers behind.

Description

Detailed Description of the Invention

[0001]

[Table of Contents] The present invention will be described in the following order. TECHNICAL FIELD OF THE INVENTION Conventional Technology (FIG. 3) Problem to be Solved by the Invention (FIG. 4) Means for Solving the Problem Embodiments of the Invention (FIGS. 1 and 2)

[0002]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a disk storage case and a sheet adhesion / peeling method, and is preferably applied to a disk storage case for storing a compact disk for music, for example.

[0003]

2. Description of the Related Art Conventionally, there is a so-called CD case formed of a plastic for housing a compact disc for music (hereinafter, the compact disc is referred to as a CD). As shown in FIG. 3, for example, a CD case 1 accommodating a CD having a diameter of 8 cm (a so-called single CD) has a tray 2 serving as a tray for the CD, and a C
Information about D is described, and a jacket 3 covering the tray 2 constitutes almost the entire structure.

The tray 2 is provided with a circular recess 4 conforming to the shape of a CD, and the CD is placed and stored in the recess 4. Further, a CD locking portion 5 having a substantially convex cross section is provided in the central portion of the concave portion 4, and the CD locking portion 5 is formed into a donut shape.
The CD is locked to the tray 2 by inserting it into the hole portion of the tray. At the time of insertion, the CD locking portion 5 is slightly squeezed inward so that it can be easily inserted, and after insertion, the CD locking portion 5 is slightly widened outward to securely lock the CD.

The jacket 3 is made of paper, and is usually printed with information such as a singer's photograph and music. This jacket 3
Has about twice the size of the tray 2, and is attached to the tray 2 by adhering one half to the back surface of the tray 2 with an adhesive, and the other half is bent to the CD mounting surface side. The tray 2 is entirely covered. At this time, since the jacket 3 covers the surface of the CD, it is possible to protect the CD from dust and scratches.

[0006]

By the way, in the CD case 1 having such a structure, the back surface of the tray 2 which is an adhesive surface to the jacket 3 is formed by a smooth flat surface like the cassette tape case, It is formed to be transparent and glossy for viewing. When the jacket 3 is adhered to the adhering surface formed in such a smooth flat surface, the adhesive force becomes strong, and the jacket 3 is not easily peeled off.

However, when the jacket 3 is to be peeled off when the tray 2 is reused, as shown in FIGS. 4 (A) and 4 (B), the adhesive force of the adhesive 6 is strong, so that the paper 3 is used. There is a disadvantage that the jacket 3 is broken and the broken pieces 7 remain on the tray 2 together with the adhesive 6. In this way, if the residue remains on the tray 2 at the time of peeling it off, a separate residue removing step must be provided, or measures such as passing a filter when the tray 2 is melted must be taken. More work processes,
Therefore, the inconvenience that the labor is increased occurs. In particular, when removing using a filter, the filter is clogged and the filter must be frequently washed or replaced, which is very troublesome.

The present invention has been made in consideration of the above points, and is intended to propose a disk storage case and a sheet adhesive peeling method capable of preventing a residue from remaining when the information recording sheet adhered to a tray is peeled off. Is.

[0009]

In order to solve such a problem, according to the present invention, a tray on which a disc to be stored is placed is provided with a sheet adhesive portion having a rough surface, and the sheet adhesive portion is provided with information about the disk. The information description sheet in which is described is adhered. By making the surface of the sheet adhesion portion to which the information description sheet is adhered to be rough, the adhesion area of the information description sheet becomes smaller, and thus the adhesive strength of the information description sheet can be weakened as compared with the conventional one. The information sheet becomes easy to peel off.

Further, in the present invention, when peeling the information writing sheet, the bonded portion between the information writing sheet and the sheet bonding portion is peeled while heating. By doing so, the surface tension becomes larger than the wettability to the sheet adhesive portion, and the information description sheet becomes easier to peel off. Further, at this time, since the clay is made low in clay and the fluidity is enhanced, if the information describing sheet is formed of paper, the adhesive is absorbed by the information describing sheet and is more easily peeled off.

Further, according to the present invention, when the information writing sheet is peeled off, the information writing sheet is peeled off while being bent into a small radius. By doing so, the peeling force is concentrated and the peeling becomes easier.

[0012]

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

In FIG. 1 in which parts corresponding to those in FIG. 3 are designated by the same reference numerals, 10 is a CD to which the present invention is applied as a whole.
A case is shown, and the tray 11 and the jacket 3 constitute almost the entire case. Also in the case of this embodiment, the tray 11 is provided with a circular recess 4 conforming to the shape of the CD, and the CD is placed and stored in the recess 4. Further, a CD locking portion 5 having a substantially convex cross section is provided in the central portion of the recess 4, and the CD locking portion 5 is inserted into the hole portion of the CD to lock the CD on the tray 11. It is done like this.

The jacket 3 is the tray 1 as in the conventional case.
The size of the tray 11 is about twice as large as that of the tray 11.
The tray 11 is attached to the tray 11 and the other half is bent toward the CD mounting surface to cover the entire tray 11. This protects the CD from dust and scratches.

By the way, in the case of this embodiment, the jacket 3
A large number of small irregularities are provided on the back surface of the tray 11 which is an adhesion surface with the surface by texture processing, etc., so that the back surface of the tray 11 is rougher than before as a whole, like a pear surface. It is formed in a rough state. Incidentally, such rough processing is generally called satin finish.

The CD case 10 as a whole is attached to the back surface of the tray 11 which is satin-finished as described above by attaching the jacket 3 to which adhesive is applied at several places.
It is formed as shown in FIG. In this case, the jacket 3
The adhesive applied to the adhesive is a slightly weaker adhesive type than before.

In the above structure, when the jacket 3 is peeled off at the time of recycling, the jacket 3 can be peeled off without leaving the adhesive and the fragments of the jacket 3 as residues on the tray 11 side as in the conventional case. . The reason will be described below. In the case of this embodiment, the back surface of the tray 11, that is, the bonding surface with the jacket 3 is roughened by a satin finish, and a large number of small irregularities are provided. As shown in FIG. 2 (A), when the jacket 3 with the adhesive 12 applied is attached to the adhesive surface thus formed, the adhesive 12 has only a convex portion on the adhesive surface. The adhesive 12 and the tray 11 are bonded to each other in a smaller area than in the conventional case. As a result, the adhesive force becomes weaker than in the conventional case where the adhesive surface is flat, and the jacket 3 is easily peeled off. Therefore, when the jacket 3 is peeled off, the jacket 3 can be peeled off with the adhesive 12 attached to the jacket 3 side as shown in FIG. 2 (B), and the adhesive 12 and the jacket 11 are attached to the tray 11 side. It is possible to avoid that the debris of 3 and the like remains as a residue.

In addition to this, in the case of this embodiment, the adhesive 1
2 is slightly weaker than the conventional one, and the fact that the adhesive type adhesive 12 is first applied to the jacket 3 side so as not to get into the concave portion of the adhesive surface is a factor that makes the jacket 3 easy to peel off. It has become. This is because, if the adhesive 12 enters the recess, the adhesive area may be increased and the adhesive force may be increased, which can be avoided by preventing the adhesive 12 from entering the recess.

Incidentally, although it has been explained here that the adhesive force is weakened so that the jacket 3 can be easily peeled off,
This only weakens the adhesive force to the extent that it can be easily peeled off when peeled off, and does not mean that it is easily peeled off without applying force. That is, in the conventional case, the adhesive strength was larger than the strength of the paper, so when the force was applied to peel off the paper, the paper broke and the adhesive and the pieces of paper remained on the tray 2 side. In the case of this embodiment, the adhesive force between the adhesive 12 and the tray 11, the adhesive force between the adhesive 12 and the jacket 3, the strength of the paper forming the jacket 3, and the adhesive 12 among these three The adhesive force with the tray 11 is weakest against the peeling force. Therefore, the jacket 3 is not torn, and the adhesive 3 is attached to the jacket 3 side.
Can be peeled off.

In this way, in the case of this embodiment, the back surface of the tray 11 which becomes the adhesive surface with the jacket 3 is made rougher than in the conventional case, so that the residue may remain on the tray 11 side during recycling. Therefore, the jacket 3 can be easily peeled off, and the time required for separating the jacket 3 and the tray 11 can be reduced. Further, not only at the time of recycling, but also when a defect such as displacement of the jacket 3 occurs in the manufacturing process, the jacket 3 can be easily peeled off and the tray 11 can be reused.

Furthermore, if the jacket 3 can be peeled off without leaving any residue on the tray 11 side, the tray 11 can be reused as it is without being remelted and remade as long as the tray 11 is not scratched. It will be possible. Furthermore, when a matte finish is applied to a normally transparent tray,
It becomes translucent like so-called frosted glass, and as a result, C
The adhesive 12 is not visible through the D mounting surface side, which is good for viewing and also has a new design. Further, when the back surface of the tray 2 is made flat as in the conventional case, it is easy to cause a load collapse when the trays 2 are stacked. However, as in this embodiment, the back surface of the tray 12 is subjected to a satin finish so that the surface thereof is finished. When roughened, the trays 12 are not slippery even if they are stacked, and there is an additional effect of preventing the collapse of loads.

According to the above construction, since the back surface of the tray 11 to be the adhesive surface to the jacket 3 is formed to be rough, the adhesive force can be weakened as compared with the conventional case.
As a result, when the jacket 3 is to be peeled off at the time of recycling or the like, the jacket 3 can be easily peeled off.

In the above-mentioned embodiment, the case where the jacket 3 is made to be easy to peel off by forming the adhesive surface of the jacket 3 roughly is described, but in addition to this, the jacket 3 is momentarily peeled off. By doing so, it becomes easier to peel off, and it is possible to prevent the residue from remaining on the tray 11.

If the bonding portion between the jacket 3 and the tray 11 is heated when peeled off, the surface tension becomes larger than the wetting property of the bonding surface, and the adhesive 1
By lowering the viscosity and increasing the fluidity of 2, the adhesive 12 is absorbed by the jacket 3 made of paper, and it is easier to peel it off, and it is possible to prevent the residue from remaining on the tray 11.

Further, when peeling, as shown by the dotted line in FIG. 2 (B), if the jacket 3 is bent while being bent to a small radius and peeled off, the peeling force is concentrated and the peeling becomes easier, and the residue remains in the tray. You can avoid staying at 11.

In the above embodiment, the tray 11 is used.
Although the case where the satin finish is applied to the entire back surface of the tray 11 to roughen the surface has been described, the present invention is not limited to this, and only the portion of the back surface of the tray 11 to which the adhesive 12 actually adheres is roughened. May be. In short, if the surface of the portion to which the adhesive 12 adheres is rough, the same effect as the above case can be obtained.

Further, in the above embodiment, the tray 1
Although the case where the jacket 3 is bonded to the back surface of the tray 1 has been described, the present invention is not limited to this, and the jacket 3 may be bonded to the CD mounting surface side of the tray 11. In that case, the entire CD mounting surface side of the tray 11 or actually the adhesive 1
The surface to which 2 is attached may be roughened by applying a satin finish.

In the above embodiment, the tray 12
Although the case where the jacket 3 on which the singer's photograph or music is printed is made easy to be peeled off by roughening the back surface of the above, the present invention is not limited to this, and the contents recorded on the disk such as those recorded on the tray 12 are not limited to this. It may be a sheet or the like on which the information to represent is described. In short, when an information writing sheet on which predetermined information is written is adhered to the tray 11, if the surface of the portion to which the information writing sheet is adhered is made rough, the information writing sheet can be easily peeled off. Can
The same effect as in the above case can be obtained.

Further, in the above-mentioned embodiment, C for music is used.
The case where the present invention is applied to the CD case 10 for storing D has been described, but the present invention is not limited to this, and a 12 cm music CD or CD-ROM as a disk to be stored.
Other disks such as (Compact Disk Read Only Memory) may be used. In short, the present invention can be widely applied to any disk storage case that stores a disk.

[0030]

As described above, according to the present invention, by making the surface of the sheet bonding portion to which the information describing sheet is bonded to be rough, the adhesive force of the information describing sheet is weakened as compared with the conventional case. As a result, when the information writing sheet is peeled off at the time of recycling, the information writing sheet can be easily peeled off without leaving a residue.

Further, when the information description sheet is peeled off, the adhesive portion between the information description sheet and the sheet adhesive portion is peeled off while being heated, so that the information description sheet can be more easily peeled off, thereby making the information The described sheet can be easily peeled off without leaving a residue.

Further, when the information describing sheet is peeled off, the information describing sheet is peeled off while being bent at a small radius, so that the information describing sheet can be more easily peeled off.
Thereby, the information sheet can be easily peeled off without leaving a residue.

[Brief description of drawings]

FIG. 1 is a perspective view showing a structure of a CD case according to an embodiment of the present invention.

FIG. 2 is a schematic diagram for explaining the state when the jacket of the CD case is peeled off.

FIG. 3 is a perspective view showing a structure of a conventional CD case.

FIG. 4 is a schematic diagram used for explaining a state when the jacket of the CD case is peeled off.

[Explanation of symbols]

1, 10 ... CD case, 2, 11 ... tray, 3 ...
Jacket, 4 ... Recessed part, 5 ... CD locking part, 6, 12
…… Adhesive, 7 …… Jacket fragments.

Claims (7)

[Claims] 1. A tray on which a disk to be stored is placed, a disk locking portion formed on the tray and locking the disk, and a sheet bonding portion formed on the tray and having a rough surface. A disk storage case, characterized in that the disk storage case is adhered to the sheet bonding portion with a predetermined adhesive, and an information recording sheet on which information about the disk is recorded. 2. The disk storage case according to claim 1, wherein the surface of the sheet bonding portion is roughened by a satin finish. 3. A sheet adhesion peeling method for adhering and peeling an information recording sheet adhered to a tray of a disk storage case, wherein a sheet adhesion portion having a rough surface is formed on the tray, When the above-mentioned information-describing sheet in which the information regarding the disk is described is adhered to the sheet-adhesion portion using a predetermined adhesive and the above-mentioned information-description sheet is peeled off, the adhesion portion between the information-description sheet and the above-mentioned sheet-adhesion portion A method for adhering and removing a sheet from a disk storage case, which comprises removing the sheet while heating. 4. When the information recording sheet is adhered to the sheet adhesive portion, the adhesive is applied to the information recording sheet, and then the information recording sheet is adhered to the sheet adhesive portion. The sheet adhesion peeling method for a disk storage case according to claim 3. 5. The method for adhering a sheet in a disk storage case according to claim 3, wherein when the information recording sheet is peeled off, the information recording sheet is peeled off while being bent at a small radius. 6. A method for adhering and delaminating an information recording sheet adhered to a tray of a disk storage case, comprising: forming a sheet adhering portion having a rough surface on the tray; The above-mentioned information-describing sheet in which the information about the disk is described is adhered to the sheet-adhering portion by using a predetermined adhesive, and when peeling off the above-mentioned information-describing sheet, the information-describing sheet should be peeled off while bending it into a small radius A method for adhering and removing a sheet from a disk storage case. 7. When the information recording sheet is adhered to the sheet adhesive portion, the adhesive is applied to the information recording sheet and then the information recording sheet is adhered to the sheet adhesive portion. The method for adhering a sheet to a disk storage case according to claim 6, wherein