JPS6245894Y2 - - Google Patents

Description

[Detailed explanation of the idea] (Industrial application field) The present invention relates to an apparatus for manufacturing adhesive bags.

Stick-on bags are useful in many applications, for example, as stick-on pockets or stick-on delivery bags. The former is used to display the price of products by pasting it on various items and inserting price tags into the pocket, or as a document organizer by inserting various office documents into the pocket, or by inserting a price tag into the pocket. It can be used as an index for documents, etc. by inserting a tag displaying it. The latter also uses this as a package for mailing,
For example, it can be used by attaching it to a parcel and inserting a tag indicating the sender and recipient into the bag.

The present invention relates to an apparatus for easily and automatically continuously manufacturing such adhesive bags with multicolor printing.

(Prior art) A base film is polymerized and bonded to a release sheet via an adhesive, the polymerized film is polymerized and welded to the base film to form a bag, and the bag formed by the base film and polymerized film is released. The manufacturing equipment for adhesive type bags, which are peeled off from a mold sheet and pasted on various locations, transports a release sheet, a base film, and a polymeric film on a line. There are some that are equipped with a mechanism for polymerizing and bonding a base film and a polymeric film, or fusing and welding a base film and a polymeric film. Conventionally, the mechanism for forming a bag with the base film and polymeric film temporarily stops the conveyance of the sheet or film on the line, and at that stop position both films are transported.
This is a well-known method in which fusing and welding is performed by sandwiching the film between a pair of opposing members that move in a direction perpendicular to the transport direction, and the transport of the film has been intermittent.

On the other hand, when performing multicolor printing on base films or polymeric films, the printing machine was installed on a line separate from the bag manufacturing line.

(Problems to be Solved by the Invention) When the base film and the polymer film are fed intermittently, the manufacturing speed becomes slower than when they are fed continuously.

Furthermore, if the bag manufacturing line and the printing line are separate, it is troublesome as it requires time and effort to transfer the printed film to the bag manufacturing line.

In view of the above, the present invention enables the manufacture of adhesive bags by continuously transporting sheets and films, and also improves productivity when printing on films by incorporating a printing machine in the middle of the film transport line. It is an object of the present invention to provide an economical adhesive-type bag manufacturing device which can perform multi-color printing in various combinations on the base and film with one device.

(Means for Solving the Problems) The technical measures taken by the present invention to solve the problems of the prior art are characterized by the use of a continuously fed heat-insoluble release sheet and the release sheet. A heat-soluble base film that is continuously fed to the surface of the mold sheet, a heat-soluble polymer film that is continuously fed to one side of the base film opposite to the mold release sheet, and the base film and the polymer film. a printing device that individually and continuously prints on each side of the base film; and a printing device that is arranged downstream of the printing device and continuously applies an adhesive to the surface of the release sheet or the side surface of the base film on the release sheet side. an adhesive applicator that polymerizes the base film and the release sheet via the adhesive, and a pressure roll that polymerizes the polymerized film on the base film, and a pressure roll disposed downstream of the pressure roll, A fusing roll equipped with a fusing blade that fuses and welds only the base film and the polymer film on the release sheet to form a bag; a take-up roll for winding up; the printing device is equipped with three or more printing machines, and each printing machine is configured to selectively pass either or both of the base film and the polymer film. The point is that it is.

(Function) The release sheet, base film, and polymeric film are all fed continuously, and the adhesive is continuously applied between the release sheet and the base film by an adhesive applicator. Polymerization with the sheet via the adhesive is performed between pressure rolls, and fusing and welding of the base film and polymerized film is performed by the fusing blade of the fusing roll, so it is necessary to transport the sheet or film intermittently. do not have.

Furthermore, since the base film and polymer film that are continuously conveyed pass through a printing machine, the bag manufacturing line and the printing line are on the same line.

And, if there are three or more printing machines, either one or both of the base film and the polymer film,
Since it is selectively passed through each printing press for selective multi-color printing, various combinations of multi-color printing can be done in one device. Further, the fusing and welding by the fusing roll is performed only on the base film and the polymer film, and since the release sheet is heat insoluble, no fusing and welding is performed on the release sheet. Therefore, the bags are continuously arranged on the release sheet, and in this state they are continuously wound up on the winding roll.

(Example) Hereinafter, an example of the present invention will be described based on the drawings.

In FIG. 1, a heat-insoluble mold release sheet 1 is
For example, it is made of a long piece of paper, the surface of which has been subjected to a mold release treatment such as silicon processing, and is continuously fed from a feed roll 2 and then wound up by a take-up roll 3. The base film 4 is made of a long length of heat-soluble material such as synthetic paper or plastic film, and is continuously fed out from a feed roll 5 and sent to the side of the release sheet 1 via a printing device 6. The polymer film 7 is made of a long length of heat-soluble material made of synthetic paper or plastic film, preferably transparent or translucent plastic film, and is continuously fed out from a feed roll 8, passed through the printing device 6, and then printed on the release sheet. Sent to the side of 1. The base film 4 and polymer film 7 sent in this way
are sequentially polymerized on the surface of the release sheet 1 when passed through the pressure rolls 9, 9, but before that, some or all of the release-treated surface of the release sheet 1 is polymerized. An adhesive 11 is applied by an agent applicator 10. Therefore, after passing through the pressure rolls 9, 9, the base film 4 was releasably polymerized on the surface of the release sheet 1 via the adhesive 11, and the polymerized film 7 was further polymerized on the base film 4. It is considered to be a laminate.

The laminate thus formed is passed through a fusing roll 12 and wound onto the winding roll 3.
The fusing roll 12 is equipped with a fusing blade 13 on the outer periphery, and is used to fusing and welding only the films 4 and 7 on the release sheet 1 to form a bag shape.
As shown in the figure and FIG. 3, the tip of the fusing blade 13 has a slightly rounded shape. Therefore, the fusing roll 1
2, the fusing blade 13 fusing and welding both the films 4 and 7, but does not cut the release sheet 1 due to the rounded shape of the tip 14. still,
Preferably, the fusing roll 12 is a cylinder roll made of magnesium alloy, the outer peripheral surface of which is corroded to form the fusing blades 13 of a desired shape, and a heater with a thermostat is installed inside.

In such an apparatus, the printing device 6 has three
The base film 4 and the polymer film 7 are selectively passed through these printers, and multicolor printing is applied to either one of the films 4, 7. . When selected as shown in FIG. 1, the base film 4 is printed on the first printing machine 6.
From the feed roll 15a of the second printing machine 6b, the plate roll 16a is turned back by the folding roll 17a and headed for the second printing machine 6b.
7b, and after being subjected to two-color printing in this manner, it is sent to the pressure rolls 9, 9 via the idle roll 18. On the other hand, the polymer film 7
Plate roll 1 from feed roll 15c of printing machine 6c
6c and then folded back by the folding roll 17c,
After continuous monochrome printing, the idle roll 19
It is then sent to the pressure rolls 9, 9.

In addition, when the selection is made as shown in FIG. 4, the base film 4 is passed from the feed roll 15a of the first printing machine 6a, passes through the plate roll 16a, and is folded back by the turning roll 17a, and after monochrome printing is applied, the base film 4 is sent to the idle roll 18. After that, it is sent to pressure rolls 9, 9. on the other hand,
The polymer film 7 is transferred from the feeding roll 15b of the second printing machine 6b to the plate roll 16b and then to the folding roll 1.
7b and head towards the third printing press 6c,
The feed roll 15c of the third printing machine 6c passes through the plate roll 16c and is folded back by the folding roll 17c, and after being subjected to two-color printing in this way, it is sent to the pressure rolls 9, 9 via the idle roll 19. .

Further, when the selection is made as shown in FIG. 5, the base film 4 is passed through a first printing machine 6a, and the polymerized film 7 is passed through a second printing machine 6b, whereby monochrome printing is applied to each of the films 4 and 7. In this case, the third
The printing press 6c is in an idle state.

The number of printing machines in the printing device 6 can be four or more, and by selectively combining a large number of printing machines, one or both of the base film 4 and the polymer film 7 can be selectively coated with two or more colors. It is free to configure it to perform multicolor printing. Further, in the above manufacturing apparatus, the adhesive applicator 10 can be configured to apply the adhesive 11 to the back surface of the base film 4, as shown in a modified embodiment in FIG. In addition, a cutting machine 20 is provided in place of the winding roll, and the stick-on bags manufactured by this machine are cut into single or several sheets, which are automatically cut onto the mounting table 20.
They may be stacked on top of each other.

As shown in FIGS. 7 to 9, the adhesive type bag manufactured by the above-mentioned apparatus has a release sheet 1.
A base film 4 is releasably polymerized on a part or all of the surface of the base film 4 via an adhesive 11, and a polymerized film 7 is polymerized only on a part of the surface of the base film 4. They are melted and welded together to form a bag 23. An annular fusing line 24 is formed on the base film 4 above the bag 23, and this is formed by the fusing roll 12 at the same time as the fusing welding line 22. In use, the bag 23 is peeled off from the release sheet 1 and adhered to various articles 25 using the back adhesive 11 of the base film 4, and the object 27 is inserted into the bag 23 through the bag opening 26 of the polymeric film 7. and use it. The bag 23 that has been peeled off from the release sheet 1 has a hanging hole 28 formed by the annular fusing wire 24 in the upper part, and therefore, in this case, although not shown, the adhesive 11 is applied only to the back surface of the base film 4 on the upper part of the bag 23. By leaving it uncoated, the bag 23 can be hung together with the article to which it is attached through the hanging hole 28.

Figures 10-12 show another embodiment of the bag, which is substantially similar to the above, but with a polymeric film 7.
is provided on the entire surface of the base film 4, and is separated into upper and lower polymerized films 7a and 7b through a cut, and the cut is used as a bag opening 26. Therefore, in this case, the manufacturing apparatus is provided with a slitter at an appropriate location for forming the cuts.

(Effects of the invention) According to the invention, adhesive bags can be manufactured continuously from the continuously conveyed release sheet, base film, and polymeric film without stopping the conveyance, and it is possible to manufacture adhesive-type bags continuously from the continuously conveyed release sheet, base film, and polymer film without stopping the conveyance. Productivity can be improved compared to

In addition, since the film printing machine is installed in the middle of the film transport line, when printing on film, there is no need to transfer the film from the printing line to the transport line as in the past. Productivity can be improved.

Furthermore, polymerized film and base film are
By selectively passing through three or more printing machines, it is possible to perform multicolor printing in various combinations with one machine, which is economical. Furthermore, in the present invention, a heat-soluble base film and a polymerized film are superposed on a heat-insoluble release sheet, and individual bags are formed using a fusing roll. without being
It can be continuously rolled up, and in use, the bag can be peeled off from the release sheet while unwinding the roll, making it convenient to use.

Note that since the printing machine passes each film individually, it is possible to print on both the front and back sides.

[Brief explanation of the drawing]

Fig. 1 is a process diagram showing an apparatus according to an embodiment of the present invention, Figs. 2 and 3 are enlarged sectional views showing the passage of the fusing roll, and Figs. 4 and 5 show selected modes of the printing machine. FIG. 6 is a process diagram showing a modified example, FIG. 7 is a front view showing one embodiment of the adhesive bag, FIG. 8 is a sectional view taken along the - line in FIG. 10 is a front view showing another embodiment of the adhesive bag, FIG. 11 is a sectional view taken along the line XI in FIG. 10, and FIG. 12 is a sectional view of the same used state. . 1...Release sheet, 4...Base film, 6
...Printing device, 6a, 6b, 6c...Printing machine, 7
...Polymerized film, 9...Press roll, 10...
Adhesive applicator, 11... adhesive, 12... fusing roll, 13... fusing blade.

Claims (1)

[Scope of utility model registration request] A heat-insoluble release sheet is fed in conjunction with the release sheet, a heat-soluble base film is continuously fed onto the surface of the release sheet, and a heat-soluble base film is continuously sent to one side of the base film opposite to the release sheet. a heat-soluble polymeric film to be fed; a printing device that individually and continuously prints on each side of the base film and the polymeric film; and a printing device that is arranged downstream of the printing device and prints on the surface of the release sheet or the base film. an adhesive applicator that continuously applies adhesive to the side surface of the release sheet, and a sandwich that polymerizes the base film and the release sheet via the adhesive and polymerizes the polymerized film on the base film. a pressure roll; a fusing roll disposed on the downstream side of the squeezing roll and equipped with a fusing blade for fusing and welding only the base film and polymer film on the release sheet to form a bag; a take-up roll for winding up the release sheet, the base film, and the polymerized film; 1. An apparatus for producing an adhesive bag, characterized in that the device is configured to selectively allow one or both of the above to pass through.