JP2008126635A - File for office works, and method of manufacturing the same - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a file for office works dispensing with reaming a document with binding holes, capable of storing stably a great volume of documents, and easily drawing, inserting and sorting documents, and a method of manufacturing the same. <P>SOLUTION: The file for office works composed of a combination of an outer cover having a front cover, a reverse cover and a back strip, and a plurality of inner folders made of a synthetic resin film is provided with face fasteners on an inner side of the back strip of the outer cover and on back parts of the inner folders wherein the face fasteners on the back parts of the inner folders are melted to adhere to the back faces of the face fasteners through a resin film for melt adhesion similar to that of the inner folders fixed by lamination to the back face of the face fasteners, and the inner folders are freely attachable and detachable to the outer cover by means of the face fastener. Further, the method of manufacturing the file for office works comprises a process for the melt adhesion of the face fasteners to the inner folders, a process of bonding the face fastener to the inner side of the backs trip of the outer cover, and a process of combining the inner folders provided with the face fasteners with the outer cover. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to an office file and a manufacturing method thereof. More specifically, the present invention relates to an office file that can stably store a large amount of documents, and can easily insert and remove and classify documents, and a method of manufacturing the same, without the need for punching a binding hole in the document. .

When computers began to spread, most of the information was eventually stored in a database, telling the dream that a paperless office would be realized. However, the reality is that the realization of a paperless office is literally a dream, as can be understood from the fact that the production volume of printing paper increases year by year. With the recent visualization of printed matter, the consumption of coated printing paper suitable for color printing has increased, and in the field of information paper, inkjet paper has achieved remarkable growth with the spread of digital cameras and higher performance of printers. ing. As a result, the amount of documents in the office has increased and the types of documents have become diversified, and a great deal of effort has been expended in organizing, classifying, and storing huge amounts of documents.
A file with a binding tool is used to store documents in the office, and files such as 2-hole, 4-hole, and 30-hole are frequently used for the A-line 4th vertical document. However, when storing a document using such a file, it is necessary to punch a binding hole in the document. In addition, when taking out the organized documents for copying, etc., or adding similar documents to the documents bound inside, it is necessary to remove the documents from the binding tool and then insert them again. It takes time and effort. In addition, in 2-hole files and 4-hole files, the binding holes are easily damaged when the binding thickness is increased, and if the file is used for a long period of time, it is necessary to attach a punch label to the binding hole of the damaged document and repair it. However, it is a painful work. When a 30-hole file is used, the damage to the binding holes is reduced, but it takes a lot of work to punch 30 binding holes in all documents.
A punchless file is a file that can be stored without punching a binding hole in a document. For example, as a Z-type file, a file for pressing a side edge of a document with a binding tool by pressing down a lever is commercially available. However, with this type of file, the binding thickness is limited to 16 to 20 mm, and a large amount of documents cannot be organized and stored in one file.
Clear files are also files that can be stored without punching holes in the document. A clear file is a file in which a plurality of pockets made of a transparent synthetic resin film are bound on an outer cover, and documents are organized and stored in each pocket. The clear file includes a fixed file in which a pocket is bound to the outer cover, and a replaceable file in which the pocket has a binding hole on one side and is detachably attached to the outer cover by a ring fitting or the like. In a fixed file, once a new category of document is added to a group of documents that have been organized, sorted, and stored, it is necessary to move documents in several pockets to another pocket. In the replaceable file, when a new classification document is added, a new pocket can be added by opening a ring bracket or the like. However, in both the fixed file and the replaceable file, the opening of the pocket is only one side of the rectangular pocket, so it is difficult to say that the workability of storing the document in the pocket or taking out the document from the pocket is good. .
The present inventor previously, when binding a plurality of document units consisting of a plurality of documents on a cover made of paper, a synthetic resin sheet or synthetic paper, as a bookbinding method in which each document unit is detachable, The binding edge of a document set consisting of a plurality of documents, a cover cover in which a hook-and-loop tape is superposed on the inner surface of the spine cover, and a hook-and-loop tape or a tape that can be attached to and detached from the hook-and-loop tape on the cover cover by a raised structure A bookbinding method was proposed in which each document unit is detachable by attaching a plurality of document units bonded to the cover cover (Patent Document 1). FIG. 5 is a cross-sectional view of an example of bookbinding produced by the proposed method. In the bookbinding of this example, a hook-and-loop fastener (male) 21 is polymerized using an adhesive 20 on the inner surface of the back cover of the cover cover 19. The document is bound in advance by a stapler, an adhesive layer or the like to form a document unit 22. A hook-and-loop fastener (female) 23 is bonded to the binding edge of the document unit using an adhesive 20. Each document unit is detachably attached to the cover cover with a hook-and-loop fastener, so operations such as taking out any document unit from the file and changing the order of the document units in the file can be freely performed. . However, one document unit is bound by a stapler, etc., and in order to replace several sheets in the document unit, it is necessary to remove the hook-and-loop fastener at the binding edge of the document unit and remove the binding by the stapler. It is very time consuming and almost impossible to implement.
JP 2004-203002 A

  It is an object of the present invention to provide an office file that can stably store a large amount of documents and easily perform insertion / removal and classification of documents without the need for punching a binding hole in the document, and a manufacturing method thereof. It was made as a purpose.

As a result of earnest research to solve the above problems, the inventor has obtained an outer cover having a front cover, a back cover, and a back cover, and an inner folder made of a plurality of synthetic resin sheets. In combination, a hook-and-loop fastener is provided on the inside of the back cover of the outer cover and the back of the inner folder, and the hook-and-loop fastener on the back of the inner folder is placed on the back of the hook-and-loop fastener through a welding resin film of the same quality as the inner folder. Office files that are welded together and the outer cover and inner folder are detachable with hook-and-loop fasteners can be used as a single document unit without the need for punching binding holes in the document. The stored documents can be freely extracted and replaced, and the folders in the office file can be arbitrarily extracted or rearranged. Since it is, it keeps stable a large amount of documents, easily found that it is possible to perform punching inserted and classification of documents, and have completed the present invention based on this finding.
That is, the present invention
(1) An office file consisting of a combination of an outer cover having a front cover, a back cover, and a back cover, and a plurality of synthetic resin sheet inner folders for storing documents, and the inside of the back cover of the outer cover A hook-and-loop fastener is provided at the back of the inner folder, and the hook-and-loop fastener at the back of the inner folder is welded via a welding resin film of the same quality as the inner folder laminated and fixed to the back surface of the hook-and-loop fastener. An office file characterized in that the cover and the inner folder are detachable with a hook-and-loop fastener,
(2) The office file according to (1), wherein the welding resin film is a laminate film of a synthetic resin film having the same quality as the inner folder and a synthetic resin film having the same quality as the back surface of the hook-and-loop fastener,
(3) The inner folder is formed by two substantially rectangular synthetic resin sheets, the two or three continuous sides of the rectangle are substantially blocked, and one or two continuous sides of the rectangle are opened, A tongue piece is provided on the opened side, and a hook-and-loop fastener is welded to the tongue piece and a position where the tongue piece is folded back via a synthetic resin layer of the same quality as the inner folder, and the tongue piece is fixed by the hook-and-loop fastener. The office file according to (1) or (2), which closes the open side of the inner folder by
(4) The office file according to (1), (2) or (3), wherein the synthetic resin sheet constituting the inner folder is a polypropylene sheet,
(5) On the back surface of the hook and loop fastener, a synthetic resin film having the same quality as the inner folder is laminated and fixed as a welding resin film, and the hook and loop fastener is welded to the back portion of the inner folder via the laminated and fixed synthetic resin film; A method of manufacturing an office file, characterized by comprising a step of bonding a hook-and-loop fastener to the inside of the spine of the cover, and a step of combining an inner folder with the hook-and-loop fastener and an outer cover, and
(6) As the welding resin film, a laminated film of a synthetic resin film having the same quality as the back surface of the surface fastener and a synthetic resin film having the same quality as the inner folder is used. A method for producing an office file according to (5), in which a synthetic resin film having the same quality as that of the inner folder is laminated and fixed on the back surface of the hook-and-loop fastener by overlapping and contacting the back surface and melting the laminate film,
Is to provide.

  The office file of the present invention consists of a combination of an outer cover with a hook-and-loop fastener inside the spine and an inner folder with a hook-and-loop fastener on the back, and the outer cover and the inner folder are detachable by hook-and-loop fasteners. , Without creating a binding hole in the document, documents related to one inner folder can be stored to form a document unit, and the inner folder can be arbitrarily extracted from the file, and the order can be changed . For this reason, it is possible to stably store a large amount of documents, and to easily insert and remove documents and classify them. In the office file of the present invention, the inner folder and the hook-and-loop fastener have the hook-and-loop fastener on the back of the inner folder being welded via a welding resin film of the same quality as the inner folder laminated and fixed to the back surface of the hook-and-loop fastener. The adhesive of the inner folder is good, and even if the inner folder is repeatedly attached to and removed from the outer cover, the hook-and-loop fastener on the back of the inner folder is not likely to come off. According to the office file manufacturing method of the present invention, the office file of the present invention can be manufactured easily and economically.

The office file of the present invention is an office file comprising a combination of an outer cover having a front cover, a back cover, and a back cover, and an inner folder made of a plurality of synthetic resin sheets for storing documents. A hook-and-loop fastener is provided on the inside of the back cover and the back of the inner folder, and the hook-and-loop fastener on the back of the inner folder is welded via a welding resin film of the same quality as the inner folder laminated and fixed on the back surface of the hook-and-loop fastener Thus, the outer cover and the inner folder can be attached and detached with a hook-and-loop fastener.
FIG. 1 is a perspective view of one aspect of the outer cover and one aspect of the inner folder used in the present invention. The outer cover of this embodiment has a front cover 1, a back cover 2, and a spine cover 3, and a hook-and-loop fastener 4 is provided inside the spine cover. There is no restriction | limiting in particular in the material of the outer cover used for this invention, For example, a polypropylene sheet, a foamed polypropylene sheet, a paperboard, the paperboard which laminated | stacked the polypropylene film, a printing board, a pulp board etc. can be mentioned. When the outer cover is a polypropylene sheet, the thickness is preferably 0.5 to 2 mm. The outer cover can protect the outer edge with metal or the like as necessary. The dimensions of the front cover and the back cover of the outer cover can be selected as appropriate, for example, in the form of A column No. 4 vertical, according to the size and storage direction of the documents to be stored. The binding thickness of the outer cover is preferably 15 to 120 mm, and more preferably 20 to 100 mm. When the binding thickness is less than 15 mm, the amount of documents to be organized, classified, and stored is small, and therefore, it can be processed without any particular trouble using a conventional office file. When the binding thickness exceeds 120 mm, the amount of documents to be organized, classified, and stored increases, and it may be difficult to stably process with one office file.

The inner folder of the embodiment shown in FIG. 1 includes a hook-and-loop fastener 5 on the back, and can be bonded by the hook-and-loop fastener 4 of the outer cover and the hook-and-loop fastener 5 of the inner folder, and the outer cover and the inner folder are detachable by the hook-and-loop fastener. is there. The inner folder is composed of a substantially rectangular synthetic resin sheet. The synthetic resin sheet is folded in half, and the portion corresponding to the fold is the back of the inner folder, and a hook-and-loop fastener is welded to the back. Most of the lower side of the substantially rectangular rectangle of the half-folded synthetic resin sheet is welded and sealed by the welding wire 6, and about one-sixth below the opening side facing the back is similarly welded and sealed by the welding wire 7. It has been.
There is no restriction | limiting in particular in the material of the synthetic resin sheet of the inner folder used for this invention, For example, a polypropylene sheet, a polyethylene terephthalate sheet, a polycarbonate sheet etc. can be mentioned. Among these, the polypropylene sheet can be suitably used because it has good processability and has appropriate strength and elastic modulus. As the polypropylene sheet, either an unstretched polypropylene sheet or a biaxially stretched polypropylene sheet can be used.

The thickness of the synthetic resin sheet of the inner folder used in the present invention is preferably 0.05 to 0.4 mm, and more preferably 0.1 to 0.2 mm. If the thickness of the synthetic resin sheet is less than 0.05 mm, the handling workability of the inner folder and the workability of inserting the document into the inner folder may be reduced. If the thickness of the synthetic resin sheet exceeds 0.4 mm, it is easy to store and store a heavy document, but the weight of the office file increases and the price may increase. Depending on the type of documents to be stored, multiple types of internal folders with different synthetic resin sheet thicknesses can be used in one office file. When dry-laminating a synthetic resin film printed with gravure, for example, an unstretched polypropylene film having a thickness of 50 μm and a biaxially stretched polypropylene film having a thickness of 50 μm can be laminated.
Although there is no restriction | limiting in particular in the color tone of the synthetic resin sheet of the inner folder used for this invention, It is preferable that it is colorless and transparent. By using the inner folder made of a colorless and transparent synthetic resin sheet, it is easy to visually recognize the stored and stored documents from the outside. However, it can also be used as an index using a colored transparent inner folder or a colored opaque inner folder.

  FIG. 2 is an end view of a cut portion showing an aspect in which the outer cover and the inner folder shown in FIG. 1 are combined. In this embodiment, the outer cover 8 and the six inner folders 9 are combined, and the inner folder is formed by the hook-and-loop fastener 4 provided inside the spine 3 of the outer cover and the hook-and-loop fastener 5 provided on the back of the inner folder. Is detachably attached to the outer cover. If it is necessary to take out or replace a part of the documents stored or stored in the inner folder, remove the inner folder from the outer cover, remove the necessary documents, replace the inner folder, etc. Can be attached to the original position using a hook-and-loop fastener. Also, if it becomes necessary to change the positional relationship of some internal folders due to changes in the document classification, etc., remove the internal folders from the outer cover, adjust the required positional relationship, The folder can be returned to the outer cover and attached using a hook-and-loop fastener.

The hook-and-loop fastener used in the present invention is not particularly limited, and any of a hook tape and loop tape pair, a hook tape and napping tape pair, a mushroom tape and loop tape pair, and a mushroom tape and napping tape pair are used. be able to. The hook tape or mushroom tape and the loop tape or napping tape can be provided on either the outer cover or the inner folder.
There is no restriction | limiting in particular in the material of a hook_and_loop | surface fastener, For example, polyester, nylon, etc. can be mentioned. The surface fastener used in the present invention preferably has a peel strength measured according to JIS L 3416 of 0.63 to 1.73 N / cm, more preferably 1.05 to 1.45 N / cm. If the peel strength is less than 0.63 N / cm, the inner folder may fall off the outer cover. When the peel strength exceeds 1.73 N / cm, a large force is required to remove the inner folder from the outer cover, and the hook-and-loop fastener may easily come off from the back of the inner folder.

  In the office file of the present invention, the hook-and-loop fastener on the back of the inner folder is welded via a welding resin film of the same quality as the inner folder laminated and fixed to the back surface of the hook-and-loop fastener. In the present invention, the welding resin film is preferably a laminate film of a synthetic resin film having the same quality as the inner folder and a synthetic resin film having the same quality as the back surface of the surface fastener. FIG. 3 is an explanatory view of a method for welding a hook-and-loop fastener to the back of the inner folder. When the inner folder is made of a polypropylene sheet and the surface fastener is made of polyester, a laminate film of the polypropylene film 10 and the polyester film 11 is produced. Next, the surface fastener and the laminate film are overlapped so that the back surface of the polyester surface fastener 5 and the polyester film surface of the laminate film are in contact with each other, and the surface fastener and the laminate film are welded by heating to a temperature higher than the melting point of the polyester. At this time, it is preferable to leave the non-welded surface on the laminate film by heating to a linear shape or a spotted shape. In the four modes shown in FIG. 3, all are heated linearly at the welding wire 12, leaving the non-welded surface 13. When a laminate film of a polypropylene film and a polyester film is heated to a temperature higher than the melting point of the polyester, the polypropylene in the heated portion is also melted, and in the heated portion, the polypropylene film may not remain on the surface of the laminate film. By heating the laminate film in the form of lines, spots, etc., the non-welded surface remains on the unheated part, and the polypropylene film remains intact on the non-welded surface. The laminate film can be welded to the inner folder of the polypropylene sheet, and the hook-and-loop fastener can be welded to the back of the inner folder.

In the office file according to the present invention, the inner folder is formed by two substantially rectangular synthetic resin sheets, and two or three continuous sides of the rectangle are substantially blocked, and one or two continuous sides of the rectangle. And a hook-and-loop fastener is welded to the tongue piece and the position where the tongue piece is folded back through a synthetic resin layer of the same quality as the inner folder. It is preferable that the opened side of the inner folder can be sealed by fixing with a hook-and-loop fastener.
FIG. 4 is a front view and a back view of another embodiment of the internal folder used for the office file according to the present invention. The inner folder of this aspect is formed of two substantially rectangular synthetic resin sheets, a front side sheet 14 and a back side sheet 15 formed by half-folding a substantially rectangular synthetic resin sheet, and is a rectangular shape in which a half-fold fold is sealed. One side is the back of the inner folder, and the hook-and-loop fastener 5 is attached to the back of the inner folder. The front side sheet and the back side sheet are welded to the lower side continuous to the side formed by the half-folded crease by the welding wire 6 and substantially sealed. “Substantially blocked” refers to a state in which documents stored and stored in the inner folder are sealed to the extent that they do not fall off. Only about one-sixth lower side of the side facing the half-folded fold is welded to the front side sheet and the back side sheet by the welding wire 7 and is substantially opened. Substantially an opening means a state having a space for inserting and taking out documents. The upper side continuous with the side consisting of the half-folded fold is completely opened.
The back sheet has a tongue piece 16 on the opened side, and hook and loop fasteners 17 and 18 are welded to the tongue piece and the front sheet that comes into contact when the tongue piece is folded back. When the tongue piece 16 of the back sheet is folded back to the front sheet side, the tongue pieces are fixed by the hook-and-loop fasteners 17 and 18, and the opened upper side is sealed. Since the inner folder of this aspect can insert and take out documents using two continuous sides of the opened upper side and the substantially opened side opposite to the side formed by the half-fold crease, It is much easier to insert and remove documents than a rectangular folder with only one side open. Further, after inserting or taking out the document, the upper side opened by the tongue piece is sealed, so that the document does not fall out of the inner folder.

In the inner folder used in the present invention, a hook-and-loop fastener is preferably welded to the tongue piece and the position where the tongue piece is folded back via a synthetic resin layer of the same type as the inner folder. There is no particular limitation on the method of welding the surface fastener through the same type of synthetic resin layer as the inner folder. For example, from a laminate film of a synthetic resin film that is the same quality as the inner folder and a synthetic resin film that is the same quality as the back surface of the surface fastener. It can be welded via a welding resin film, or a synthetic resin film having the same quality as the inner folder can be adhered to the back surface of the surface fastener and then welded to the inner folder.
If the inner folder is made of polypropylene sheet and the surface fastener is made of polyester, prepare a welding resin film consisting of a laminate film of polypropylene film and polyester film beforehand, and weld the polyester film surface of the welding resin film to the surface fastener. After that, the polypropylene film surface can be welded to the tongue of the inner folder or the inner folder. Further, after the polypropylene film is bonded to the back surface of the surface fastener using a polyester adhesive, the back surface of the surface fastener to which the polypropylene film is bonded can be welded to the tongue piece of the inner folder or the inner folder.

  The office file manufacturing method according to the present invention includes a synthetic resin film having the same quality as that of the inner folder laminated and fixed on the back surface of the hook-and-loop fastener, and the hook-and-loop fastener is attached to the inner folder through the laminated and fixed synthetic resin film. A step of welding to the back portion of the outer cover, a step of bonding a hook-and-loop fastener inside the spine of the outer cover, and a step of combining the inner folder with the hook-and-loop fastener and the outer cover. In the method of the present invention, there is no particular limitation on the method of laminating and fixing a synthetic resin film of the same quality as the inner folder on the back surface of the surface fastener, for example, using an adhesive having good adhesion to the back surface of the surface fastener, A synthetic resin film of the same quality as the inner folder can be laminated and fixed on the back surface of the inner folder, or as a welding resin film, a laminated film of a synthetic resin film of the same quality as the back surface of the hook-and-loop fastener and a synthetic resin film of the same quality as the inner folder Laminate the synthetic resin film of the same quality as the inner folder on the back surface of the hook-and-loop fastener by laminating the laminated film with the same surface as the back surface of the hook-and-loop fastener. You can also Among these, the method using the welding resin film can be suitably used because the surface fastener can be firmly welded to the back surface of the inner folder.

In the method of the present invention, the method of joining the surface fastener to the inside of the back cover of the outer cover is not particularly limited, and can be appropriately selected according to the material, thickness, etc. of the outer cover and the surface fastener. Can be bonded using an adhesive, can be bonded using an adhesive, or can be welded using a welding resin film.
In the method of the present invention, there is no particular limitation on the method of combining the inner folder with the hook-and-loop fastener and the outer cover, for example, a plurality of inner folders in one office file can all be of the same type, Alternatively, an inner folder using a thin synthetic resin sheet for a small and light document unit and an inner folder using a thick synthetic resin sheet for a large and heavy document unit can be combined, or A row 4 It is also possible to combine inner folders having different dimensions and shapes, such as a vertical shape, B row 5th vertical shape, and A row 5th horizontal shape. The office file of the present invention can be easily attached / detached to / from the outer cover with a hook-and-loop fastener so that the combination of the inner folder and the outer cover can be freely selected and easily changed. be able to.

  The office file of the present invention consists of a combination of an outer cover with a hook-and-loop fastener inside the spine and an inner folder with a hook-and-loop fastener on the back, and the outer cover and the inner folder are detachable by hook-and-loop fasteners. , Without creating a binding hole in the document, documents related to one inner folder can be stored to form a document unit, and the inner folder can be arbitrarily extracted from the file, and the order can be changed . For this reason, it is possible to stably store a large amount of documents, and to easily insert and remove documents and classify them. In the office file of the present invention, the inner folder and the hook-and-loop fastener have the hook-and-loop fastener on the back of the inner folder being welded via a welding resin film of the same quality as the inner folder laminated and fixed to the back surface of the hook-and-loop fastener. The adhesive of the inner folder is good, and even if the inner folder is repeatedly attached to and removed from the outer cover, the hook-and-loop fastener on the back of the inner folder is not likely to come off. According to the office file manufacturing method of the present invention, the office file of the present invention can be manufactured easily and economically.

It is a perspective view of one mode of an outer cover used for the present invention, and one mode of an inner folder. It is a cutting part end view which shows the one aspect | mode which combined the outer cover and the inner folder. It is explanatory drawing of the welding method of the hook_and_loop | surface fastener to the back part of an inner folder. It is the front view and back view of another aspect of an inner folder. It is sectional drawing of an example of the conventional bookbinding.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Front cover 2 Back cover 3 Back cover 4 Surface fastener 5 Surface fastener 6 Welding wire 7 Welding wire 8 Outer cover 9 Inner folder 10 Polypropylene film 11 Polyester film 12 Welding wire 13 Non-welding surface 14 Front side sheet 15 Back side Sheet 16 Tongue piece 17 Surface fastener 18 Surface fastener 19 Cover cover 20 Adhesive 21 Surface fastener (male)
22 Document unit 23 Loop fastener (female)

Claims (6)

  An office file consisting of a combination of an outer cover having a front cover, a back cover, and a back cover, and an inner folder made of a plurality of synthetic resin sheets for storing documents, and the inner folder and the inner folder of the outer cover. A hook-and-loop fastener is provided on the back of the inner folder, and the hook-and-loop fastener at the back of the inner folder is welded via a welding resin film of the same quality as the inner folder laminated and fixed to the back surface of the hook-and-loop fastener. An office file characterized in that the folder is detachable with a hook-and-loop fastener.   The office file according to claim 1, wherein the welding resin film is a laminate film of a synthetic resin film having the same quality as the inner folder and a synthetic resin film having the same quality as the back surface of the hook-and-loop fastener.   The inner folder is formed of two substantially rectangular synthetic resin sheets, two or three continuous sides of the rectangle are substantially blocked, and one or two continuous sides of the rectangle are opened to open the sides A hook-and-loop fastener is welded to the tongue piece and a position where the tongue piece is folded back via a synthetic resin layer of the same quality as the inner folder, and the tongue piece is fixed by the hook-and-loop fastener. The office file according to claim 1 or 2, wherein the opened side is closed.   The office file according to claim 1, wherein the synthetic resin sheet constituting the inner folder is a polypropylene sheet.   A process of laminating and fixing a synthetic resin film of the same quality as the inner folder as a welding resin film on the back of the surface fastener, and welding the surface fastener to the back of the inner folder via the laminated and fixed synthetic resin film, the back of the outer cover A method for manufacturing an office file, comprising: a step of joining a surface fastener to an inner side of a cover, and a step of combining an inner folder having the surface fastener and an outer cover.   A synthetic resin film that is the same quality as the back surface of the hook-and-loop fastener and a laminate film of the same quality synthetic resin film as the inner folder is used as the welding resin film, and the back surface of the hook-and-loop fastener is in contact with the back surface of the hook-and-loop fastener. The method for producing an office file according to claim 5, wherein a synthetic resin film having the same quality as the inner folder is laminated and fixed on the back surface of the hook-and-loop fastener by overlapping and melting the laminated film.

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