JPS6154924A - Manufacture of handbag made of polyethylene with plurality of bag section - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a method of manufacturing a poly carrier bag having a plurality of bag sections.

There is a plastic carrier bag having multiple bag parts that has been devised and filed by the prior art applicant.

Regarding the manufacture of this carrier bag, thermoplastic polymer materials such as polyethylene (high pressure polyethylene, medium pressure polyethylene, linear low density), polypropylene, etc. are welded, pasted, sewn, or cut. However, the conventional method has been to process the above-mentioned materials for each carrier bag. However, this method is unsuitable for mass production, and furthermore,
There are also problems with the materials and processing work itself, such as considerable waste.

Problems to be Solved by the Invention The problems to be solved by the method for manufacturing a polyester carrier bag according to the present invention are such that a polyester carrier bag having a plurality of bag parts can be easily produced. It is an object of the present invention to provide a method for manufacturing a poly carrier bag having the following methods.

Means for Eliminating the Problems The method for manufacturing a poly carrier bag having a plurality of bag parts according to the present invention is characterized by the following steps: While moving a raw poly tube at a predetermined speed, A primary poly semi-finished product is formed by repeating fusing sealing on the original tube at regular intervals in a direction perpendicular to the direction of movement, and the fusing sealed portion of the primary poly semi-finished product is Cut it out to make a rectangular primary poly semi-finished product, then stack one or more sheets of this primary poly semi-finished product and fold it in half along the fusing seal. A normal heat seal is applied to the center of the poly semi-finished product in a direction perpendicular to the melt-cut seal, and finally a predetermined portion on the bent side of the primary poly semi-finished product folded in half is cut out to create an opening. It lies in the point where it becomes as it forms.

According to the above structure, band-shaped primary poly semi-finished products are mass-produced by automatically repeatedly applying fusing seals at the same intervals to the original tube, and then each fusing seal of the primary poly semi-finished products is mass-produced. The parts are separated manually or mechanically to produce a rectangular primary poly semi-finished product that is closed on all sides. Furthermore, by stacking one or more primary poly semi-finished products and folding them in half along the fusing seal, and then applying normal heat sealing to the center in the direction perpendicular to the fusing seal, multiple bags can be made. However, since there is no article insertion opening in each bag part as it is, a predetermined part on the folded part side of the primary poly semi-finished product that has been folded in half is cut out. By forming the opening, the article insertion opening and the hand handle can be molded at the same time.

Embodiments Hereinafter, specific embodiments of the present invention will be described with reference to the drawings.

Figures 1 and 2 show the process of manufacturing a poly carrier bag having multiple bag parts according to the present invention, in which 1 is an original poly tube, which is flattened and rolled into a roll. What is taken is unraveled and used. The raw tube fabric 1 is fed at a constant speed by, for example, a belt conveyor, and a fusing seal 2 is placed on the outer surface of the raw tube fabric 1 for a certain period of time by a fusing seal device installed in the middle of the flow process. It is applied at intervals. By the way, the above fusing seal 2
By providing a cut or a hole in the seal portion, the seal is fused so that it can be easily separated, and each cut portion is maintained in a fused state after being separated and cut. In this way, a primary poly semi-finished product A is completed.

Each melt-cut seal 2... portion of the first plastic semi-finished product A is automatically cut by machine to produce a second poly semi-finished product B having a rectangular shape as shown in Fig. 1 (A). do. All four sides of the primary poly semi-finished product B are closed, but there is a fusing seal 2.
...A part can be made airtight or breathable depending on its configuration.

The semi-finished products B made of second-person plastic made in this way are placed on top of each other in precise alignment, and folded in half along the fusing seals 2 as shown in Figure 1 (b). After that, the fusing seal 2...
・At the center in the direction perpendicular to , a normal heat seal 3 for mere adhesion is applied linearly along the fusing seal 2 . Since the material of the ordinary heat seal 3 is a polyester tube, it can easily fuse together the multiple layers of the first polyurethane semi-finished product B, and the number of sheets of the second polyurethane semifinished product B can be increased by four layers. A double bag portion 4 is formed. However, as it is, each of the bag parts 4 does not have an article insertion opening or a handle for carrying, so as shown in FIG. By cutting out a predetermined portion on the curved side to form the opening 5, the article insertion opening and the hand handle can be formed at the same time. In the plastic carrier bag having a plurality of bag parts 4 made in this way, the fusing seal 2 is located on the side of the bag part 4, and the continuous part of the tube material 1 is is located at the bottom of the bag portion 4.

Now, FIGS. 3 and 4 show a method of manufacturing a polyester carrier bag having two bag portions 4a and a handle having a through hole 6. That is, the fusing seal 2 is perpendicular to the flow of the tube material 1.
. . . and ordinary heat sealing 7 are repeated alternately, and then the fusing seal 2 . . . portion is separated and cut.
A poly semi-finished product C as shown in FIG. 4(a) is manufactured which has two rectangular bag portions 4b separated by the fused portion by the normal heat seal 7 in the center. Furthermore, as shown in FIG. 2B, the center of the two directions of the fusing seal is cut perpendicularly to the two directions of the fusing seal, and a through hole 6 for handholding is provided near the cut portion. Also in the plastic carrier bag made in this way, the fusing seal 2... portion is located on the side of each bag portion 4a.

Effects of the Invention As described above, according to the present invention, it is possible to efficiently manufacture polyester carrier bags of the same size, and to make effective use of the materials used in the production process and to improve the efficiency of processing work. be able to. Furthermore, by making it possible to mass-produce polyester carrier bags of the same size, it is also possible to reduce production costs.

In addition, the polyester carrier bag manufactured according to the present invention has high strength because all the seals are in the direction perpendicular to the direction of movement of the original tube. Since a sealed part such as a normal heat seal is not located, the strength of the bottom part of the bag where the weight of stored articles is most applied does not decrease, and a durable polyester carrier bag without fear of breakage can be provided. .

Furthermore, since deformations such as waving and chatter do not occur in the center seal portion, the appearance is also beautiful.

[Brief explanation of the drawing]

1 and 2 are plan views showing the manufacturing process of a poly carrier bag according to the present invention, and Figures 3 and 4 are plan views showing the manufacturing process of a poly carrier bag having two bag parts. FIG. 5 is a perspective view of a poly carrier bag manufactured by the method according to the present invention. Code 1... Tube raw material 2... Fusion seal 3... Ordinary heat seal 5... Opening A... Primary poly semi-finished product B... Primary poly semi-finished product Utility model Registration applicant Yokopo Sangyo Co., Ltd. Utility model registration applicant agent Eiji Omura Figure 5

Claims (1)

[Claims] While moving the raw poly tube (1) at a predetermined speed, the raw tube (1) is repeatedly fused and sealed (2...) at regular intervals in the direction perpendicular to the direction of movement. thereby forming a primary poly semi-finished product (A),
The fusing seal (2) of the primary poly semi-finished product (A)
...) section to create a rectangular primary poly semi-finished product (
B), and further stack one or more sheets of this primary poly semi-finished product (B) and apply the fusing seal (2...)
Under this condition, a normal heat seal (3) is applied to the center of the primary poly semi-finished product (B) in the direction orthogonal to the fusing seal (2), and finally, the fold is folded in half. A plastic handle having a plurality of bag parts, characterized in that an opening (5) is formed by cutting out a predetermined portion of the first poly semifinished product (B) on the bent side side. How to make bags.