JPS6221537Y2 - - Google Patents

Description

[Detailed explanation of the invention] This invention is based on a blank board that is the material for a paper cup.
In particular, it relates to a blank board before the step of pasting tape.

Normally, a paper cup has a cut surface of the paper material that seals the body exposed on the inner surface of the container, but when a paper cup is used as a liquid packaging container, it is necessary to The container must be structured so that the cut end surface is not exposed because the liquid content may be contaminated by residual bacteria stored inside and the container has poor barrier properties. As a countermeasure for this, there is a method of covering the cut end of the blank board by thermally adhering a synthetic resin film or a tape made of a synthetic resin film and aluminum foil, but blank boards for cups are generally fan-shaped. Therefore, if we use the conventional method of attaching tape continuously to one strip of rolled material,
Since the blank board must be punched out from the rolled material, there is a large error in dimensional accuracy due to the meandering of the rolled material, and there is a disadvantage that the loss rate of material is high. If you use this method, the tape is cut and pasted, resulting in a misalignment between the pasting position on the blank board and the tape position, which requires precision for this adjustment, making the machine complicated, etc. There were flaws.

The present invention was devised to eliminate these drawbacks, and the fan-shaped plate is punched out from a blank plate material, and cutting tabs are provided at both ends of the straight cut side of the fan-shaped plate. , this cutting tab is cut off after pasting tape on this side.

To explain the drawings, Fig. 1 shows the product of the present invention, in which the paper cup blank board 1 is made of materials such as laminated paper, a laminated material of paper and synthetic resin film, or a laminated material of paper, synthetic resin, aluminum, etc. It is punched out into a fan shape, and cutting tabs 2 are provided protruding from both ends of the linear cut side. As shown in FIG. 2, this cutting tab 2 is made of polyethylene, for example,
It is cut after being covered with a tape 3 made of a 40μ film or a laminated film of 40μ polyethylene/25μ aluminum/40μ polyethylene. When punching blank board 1 from material,
In order to prevent this loss, for example, as shown in FIG. 3, four fan-shaped plates 1' may be punched out from a band-shaped material 4 in the width direction thereof in a state where they are arranged in a mountain shape.
Fig. 4 shows a method that was considered to be defective in conventional method 1. Since the blank plate 1'' is punched out from a strip-shaped rolled-up material 4' to which tape 3 is pasted, punching is performed by meandering the strip-shaped material 4. Madness and material 4
FIG. 5 shows a method which was considered to be a drawback of the conventional 2', and caused a discrepancy between the blank plate 1 and the cut tape 3.

Although the product of this invention is simply provided with cutting tabs at both ends of the straight cut side of the blank board, it has the following effects that cannot be seen with conventional methods. .

In other words, this cutting tab part can be hooked onto the transfer member and held, connected in a line in the straight direction of the cutting edge and fed, so that this cutting can be carried out in the same way as with conventional tape for edging strips. Tape can be easily and continuously applied to the cutting edge with a cutting tab, and by cutting off the cutting tab, the blank plate of the paper cup can be easily and accurately cut into large quantities. can be produced.

[Brief explanation of the drawing]

Figure 1 (a) is a front view of the product of the present invention, (b) is a side view thereof, Figure 2 (a) is a front view of the product of the present invention with tape pasted and the cutting tab cut off, and (b) is a cross-sectional view of the product. FIG. 3 is a drawing for punching out the material of the present invention, and FIGS. 4 and 5 are explanatory diagrams of a conventional method. Code, 1... Blank board, 2... Cutting tab, 3... Tape, 4... Blank board material.

Claims (1)

[Scope of utility model registration request] A blank board for paper cups, characterized in that a fan-shaped board punched out of a blank board material is provided with cutting tabs on both ends of the straight cut sides, which are cut off after pasting tape to the sides.