JPH0235679B2 - - Google Patents

Description

[Detailed Description of the Invention] This invention is made of a transparent synthetic resin film, generally a polypropylene film, and a PP
This invention relates to a method for manufacturing a novel bag-like folder for files, called a folder or pocket file, in which documents are stored and bound in a binder or the like.

This bag-shaped folder is designed so that, for example, B5-sized documents can be stored in one folder and bound, and documents that are twice the size of B4 can be stored in a double-page spread and bound. It is normal not to have one. As an exception, documents that are double-sized can also be bound in a double-page spread, and the three outer edges excluding the binding margin are sealed. It is known that an opening is formed at the position for taking in and taking out documents. However, with this known method, when a double-sized document is to be stored in a double-page spread, half of the document is first inserted into one side bag through the opening at the center position, and then the other half is inserted into another bag. Not only is it troublesome to handle, but the document must be bent sufficiently before being inserted, so there is a risk of damaging the document. Furthermore, since a certain amount of space must be left between the openings formed in the center of the left and right bags when the bag is made into a double-page spread, the documents in these areas are exposed and are not protected. If documents of the same size as the bag are inserted separately on the left and right sides, these documents will come into contact with each other at the opening and are likely to be damaged.

In view of the above-mentioned points, the present invention proposes a method for manufacturing bag-shaped folders that can store not only documents of the same size as each bag-shaped folder, but also documents of double the size and form a double-page spread. It is.

For this reason, in the present invention, a transparent synthetic resin film tube is flattened, and parallel belt-shaped release agents are printed on a part of the surface at regular intervals, and in the process of transporting this tube in the longitudinal direction. , by folding guide members such as gazette pins and folding guide plates, one edge of the tube in the flat state is folded inward to form a binding margin,
Using a similar folding guide member, the edge opposite to the one-side edge is folded to a position near the binding margin to form a pair of storage areas, and at this time, the above-mentioned printed image is formed on opposing positions on the inner surface of the pair of storage areas. A strip of release agent is positioned and then sealed along the entire width of the film along the release agent printing position and cut to seal the lower end of the binding margin and the lower edge of each storage section, and the seal is The manufacturing method is characterized by forming an open upper part by cutting the opposite edge of the part.

The present invention will be explained in detail below with reference to preferred embodiments shown in the drawings.

As shown in FIG. 1, the folder manufactured by the method of the present invention is composed of an endless transparent synthetic resin film. 1 in the figure is the binding margin, which is made by slightly folding one end of the endless transparent synthetic resin film into a flat plate.
The film is stacked in four layers.
A plurality of through holes 3 for binding are formed in this binding margin portion 1. In the embodiment shown in FIG. 1, the binding margin 1 is constructed by folding 2, but in the embodiment shown in FIG. 8, the binding margin 1 is folded back 4 and the film is The structure is such that four sheets are stacked one on top of the other. The embodiment shown in FIG. 1 and the embodiment shown in FIG. 8 are completely similar in other configurations. In the figure, 5 and 5 are a pair of accommodating parts, in which the endless transparent synthetic resin film is made into a flat plate, and the end opposite to the one end forming the binding margin 1 is used for the binding. It is formed by folding 6 close to the substitute portion 1. By sealing the lower edges of the binding margin 1 and the pair of storage parts 5, 5, respectively, the folds 2, 6 are sealed.
The configuration of has been stabilized. Openings 8, 8 for taking in and taking out documents are provided at the top of each bag-like storage section 5, 5.
are formed, and these pair of bag-shaped storage portions 5.5 are
There is communication 9 at the middle part.

2 to 7 show the steps of the method for manufacturing the folder of the present invention. FIG. 2 shows a tube 10 of transparent synthetic resin film wound into a roll. This tube has strips of mold release agent 1 running parallel to it at regular intervals on a part of its surface.
1 and 11 are printed. In other words, the positions of the band-shaped mold release agents 11, 11 are the inner sides facing each other when the pair of housing parts 5, 5 are closed and overlapped when the housing parts 5, 5 are formed by the folding process described later. This is the surface position.

FIG. 3 shows the process of forming the binding margin portion 1 and the storage portions 5, 5. That is, the tube 10
Known folding guide plates 12, 12 and gusset pins 13, 13 are positioned at the transfer direction arrow A position, and the tube 10 is moved along the guide plates 12, 12.
The tube 10 is guided by the pins 13 and 13 and sent out, as shown in FIGS. 4 and 5.
is composed of folds 2 and 6. At a position past this folding process, a continuous body of the binding margin portion 1 and a continuous body of the accommodating portions 5, 5 are formed. In this state, the fifth
As shown in the figure, the mold release agents 11, 11 are located inside.

Tube 1 with the folded structure described above in the next step
The mold release agent 11 is sealed along the printed position over the entire width of the sheet 0 and cut at the same time (as shown in the sixth figure). This sealing means is preferably a high-frequency seal, which may be a heat-pressure seal. No. 5 during sealing work
As shown in the figure, since the printing positions of the mold release agents 11, 11 are located on the inner sides of the respective accommodating portions facing each other, the mold release agent 11 positions are not sealed. That is, by not sealing this position, the pair of housing parts 5, 5 can be opened and closed.

By doing this, the original shape of the folder is created, but as shown in FIG. 6, since the sealed portion is cut, both sides of the cut are in a sealed state. Therefore, by cutting off the unnecessary portion 14 of the seal 7 on one side as shown in FIG.
8 can be formed.

According to the bag-like folder manufactured by the method of the present invention having the above-described configuration, documents of the same size as the size of the bag-like storage portion 5 are stored in each of the pair of bag-like storage portions 5, 5. Of course, it can be accommodated, but since the pair of bag-like storage parts 5, 5 are formed by the fold 6, these are in communication 9. Therefore, documents of twice the size can be stored in both storage sections 5, 5, and can be made into two-page spreads. Moreover, since the documents are taken in and out through the upper openings 8, 8, it is extremely easy to do so without having to bend the documents excessively, and there is no risk of damaging the documents. When the documents are stored, the entire surface is protected by the film, so there is no risk of them being soiled or damaged.
It can exhibit high protection function.

According to the method of the present invention, it is possible to automate each operation by an assembly line operation for transferring tubes of synthetic resin film, and it has the advantage that bag-shaped folders can be provided at low cost through mass production.

[Brief explanation of drawings]

FIG. 1 is a perspective view showing a folder manufactured by the method of the present invention, FIGS. 2 to 7 are perspective views showing the step-by-step process of manufacturing the folder, and FIG. 8 is a perspective view showing the binding margin. FIG. 3 is a perspective view showing a replaced folder. 1...binding margin, 2...folding, 3...through hole, 4...folding, 5...accommodating section, 6...folding, 7...sticker, 8...opening, 9...communication, 10... tube, 11... mold release agent, 12...
...Folding guide plate, 13...Pin for gazette.

Claims (1)

[Claims] 1 A transparent synthetic resin film tube is flattened, and parallel strips of release agent are printed on a part of the surface at regular intervals, and in the process of transporting this tube in the longitudinal direction, the gusset pins and folding Using a folding guide member such as a guide plate, one edge of the tube in a flat state is folded inward to form a binding margin, and a similar folding guide member is used to fold the edge opposite to the one edge. is folded to a position near the binding margin to form a pair of accommodation parts, and at this time, the printed strip-shaped release agent is positioned at opposing positions on the inner surfaces of the pair of accommodation parts, and then the release agent is folded along the release agent printing position. The open upper part is formed by sealing and cutting the entire width of the film, sealing the lower end of the binding margin and the lower edge of each storage part, and cutting the opposite edge of the sealed part. A method for manufacturing a bag-shaped folder for files, characterized by the following.