JPS6037362Y2 - garbage disposal bag - Google Patents

Description

[Detailed Description of the Invention] This invention relates to a garbage disposal bag to which a tie string can be attached reliably and economically.

Recently, in order to prevent the scattering of garbage and make it easier to collect it, waterproof paper bags (a) have been made available on the market with suitable ties attached to the surface, as shown in Figure 1.
Conventionally, when gluing these tie strings, hot melt d as an adhesive was melted in a tank C, as shown in Fig. 2A, and scooped up with a narrow applicator roll r and applied to the opening of a paper bag a. It is applied in the form of a band on a nearby surface, a string is placed on top of it, and this is pressed with a pressure roll to adhere.

However, with this conventional garbage disposal bag, if the amount of Hot Melt d applied is too small, the tie strings will come off before use, and conversely, if there is too much Hot Melt d, the tie strings will stick strongly and become difficult to remove. If you pull it forcibly, the paper bag a will be damaged.

Therefore, this invention was devised to eliminate this drawback, and provides a garbage disposal bag that has a good string attachment and is easy to tear off and convenient to use. Kuri strings 2 made of hardened and cured fiber or synthetic resin are heated and pressed in the width direction of the opening surface of the paper bag 10 at regular intervals to form and adhere a large number of laterally spread adhesive parts 2a. It is characterized by

Referring to FIGS. 3 and 4, an example of the manufacturing method of the garbage disposal bag according to this invention will be described. 1 is a hot melt d
In this storage tank, hot melt d is appropriately melted by a heater 1a, and on the upper side of this storage tank 1, a raw fabric roll 2' of a tie string 2 made of textile, synthetic resin, etc. is placed.
A winding bobbin 3 is disposed on the other side, and the tied string 2 fed out from the raw fabric roll 2' is immersed in the molten hot melt d in the storage tank 1, and the tied string 2 is impregnated with the hot melt d. adhere to it, squeeze it with a squeezing roll, and
If necessary, for installation, the material is wound onto the bobbin 3 while being hardened by cold air from the container 4.

Next, this bobbin 3 is assembled into a bonding device for the knotted string 2, and the tied string 2 is fed out toward the bonding device.

As shown in FIG. 4, this bonding device includes a cylindrical heater 4, a mounting table 5 disposed in front of the heater, a press roll 6 having a large number of radial protrusions 6a on the periphery disposed above and below the heater 4, and a receiver. It consists of a roll 7 and a cutter 8, onto which a paper bag 10 with its body and bottom attached is fed at a predetermined speed by a comparer (not shown), and in synchronization with this, it is tied up from the bobbin 3. Required amount of string 2 (paper bag 1
The pressure roll 6 and the receiver enter between the rolls 7 in a state in which the hot melt that has been impregnated or adhered to the surface is melted again by being heated by passing through the cylindrical heater 4 (slightly longer than the width of 0). It is fed over and across the surface of the paper bag 10 near the opening.

When the tie string 2 is fed onto the paper bag 10 in this way, the pressure roll 6 is lowered toward the roll 7, and
The radial protrusions 6a allow the tie string 2 to be crimped onto the paper bag 10 with an open end, and the press roll 6 and the receiver are connected to the roll 7.
The paper bag 10 is moved toward the cutter 8 by opposing rotations of the paper bag 10, and the tie string 2 is glued over the entire width of the paper bag 10. When the paper bag 10 and the tie string 2 have been moved by the required amount, the cutter 8 cuts the tie string 2. By doing this, a paper bag 10 with the tie strings 2 glued at intervals as shown in FIG. 5 is obtained.

Although not shown, if the pressure roll 6 itself is heated, the heater 4 can be omitted.

If you hold one end of the tie string 2 from the paper bag 10 and pull it off, the discrete adhesive parts 2a will be peeled off one after another, and the adhesive parts will spread slightly laterally at regular intervals as shown in Figure 6. A tie string 2 having a large number of sections 2a is obtained.

Therefore, if the paper bag 10 is stuffed with garbage appropriately and the opening is tied with a string 2, the adhesive parts 2a spread laterally at the knot will engage with each other and unravel randomly. do not have.

As described above, in this invention, tie strings impregnated with or adhered to hot melt and hardened are heated and pressed in the width direction of the opening surface of the paper bag at regular intervals to form a large number of horizontally spread adhesive parts 2a. Compared to the conventional method of gluing molten hot melt in a strip on the bag surface and uniformly gluing it across the entire width of the bag, attaching the string is much easier. It is reliable and easy to peel off, so there is no risk of damaging the paper bag, and the work speed can be increased regardless of the stickiness of the hot melt.Moreover, the tie string is impregnated with or coated with hot melt. It is durable, and when the opening of a paper bag is tied with string, the adhesive parts that spread out laterally engage with each other, ensuring that the opening of the bag is securely tied. has.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of a conventional garbage disposal bag. FIG. 2A is a side view of the state in which the adhesive is applied. The opening in the same figure is a perspective view showing how the tie string is attached. FIG. 3 is a side view of the process of dipping a tie string in an example of the method of manufacturing a garbage disposal bag according to this invention. FIG. 4 is a side view showing the bonding process. FIG. 5 is a perspective view of the garbage disposal bag according to this invention. FIG. 6 is a perspective view of the tie string. In the figure, 1. c...
storage tank, 2. b...Kukuri string, 2a...
・Adhesive part, 2'... Original fabric roll, 3...
・Bobbin, 4... Heater, 5... Placement table, 6... Press roll, 7... Support is roll, 8... Cutter, 10, a...
bag.

Claims (1)

[Scope of utility model registration request] Tie strings 2 made of fabric, synthetic resin, etc. impregnated with or adhered to hot melt and hardened are heated and pressed in the width direction of the opening surface of the paper bag 10 at regular intervals to form a large number of horizontally spread adhesive parts 2a. A garbage disposal bag characterized by being formed and bonded.