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Packaging bag

A packaging and bag technology, applied in the field of packaging bags, can solve the problems of taking out the packaged objects

Inactive Publication Date: 2003-03-19
HISAMITSU PHARM CO INC +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0004] However, in the conventional packaging bag body 1000 shown in Fig. 11(A) and Fig. 11(B), as shown in Fig. 12(A), the unsealing 4000 of the bag body 1000 formed after unsealing is easy to be in a tightly sealed state. Closed, there is a problem that it is difficult to quickly open the unsealing 4000 to easily take out the packaged objects in the bag body 1000 when needed

Method used

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Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0147] Rectangular composite laminated film (total thickness of 4 layers: 100μm) is produced by laminating 4 layers of paper, plastic film (polyethylene), aluminum foil, and plastic film from the outside. , as the first surface 10A and the second surface 10B, respectively. Next, a first tear line, a second tear line, and a third tear line are formed on the first surface 10A and the second surface 10B of the packaging bag, and the first tear line, the second tear line and the third tear line by having the same Figure 7 and Figure 8 The shown packaging bag body 11 is configured with the same shape of the breaking portion and the same number of tearing lines.

[0148] That is, the third tear line is formed on the first surface 10A and the second surface 10B with Figure 7 and Figure 8 The same 8 tear lines are shown. In addition, for these 8 tear lines, the inclination angle D300 of the breaking portion of each tear line relative to the desired unsealing direction L50 is ...

Embodiment 2

[0154] A packaging bag was manufactured in the same manner as in Example 1 except that the number of tear lines constituting the third tear line was six.

[0155] As a result of forming the third tear line in this way, the overall width of the third tear line in the direction perpendicular to the desired unsealing direction L50 is 2.70mm. The third tear line, the second tear line and the first The total width in the direction perpendicular to the desired unsealing direction L50 of the tear line forming region of the tear line was 4.42 mm.

Embodiment 3

[0157] A packaging bag was produced in the same manner as in Example 1 except that the number of tear lines constituting the third tear line was ten.

[0158] As a result of forming the third tear line in this way, the overall width of the third tear line in the direction perpendicular to the desired unsealing direction L50 is 4.24mm. The third tear line, the second tear line and the first The total width in the direction perpendicular to the desired unsealing direction L50 of the tear line forming region of the tear line was 5.96 mm.

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Abstract

A packaging bag (10) having first and second surface (10A, 10B) opposed to each other, wherein a first weak line (100A (100B)) and a second weak line (200A (200B)) which are disposed parallel with each other and a third weak line (300A (300B)) formed by a plurality of sewing-machine stitch-like breaks disposed between the first and second weak lines and inclined with respect to a predetermined bag-opening direction (L50) are formed respectively on the first and second surfaces, and the plurality of sewing-machine stitch-like breaks constituting the third weak line formed on the first surface and the plurality of sewing-machine stitch-like breaks constituting the third weak line formed on the second surface are formed to be inclined in a direction opposite to the predetermined bag-opening direction. Thereby, a suitable knob is formed in the opening in the packaging bag after the latter is opened.

Description

[0001] technology area [0002] The present invention relates to a packaging bag body having a tear line for unsealing. Background technique [0003] In the prior art, a packaged body shown in the front view of FIG. 11(A) and the developed view of FIG. 11(B) is known. This packaging bag body 1000, in order to carry out the unsealing operation easily, is provided with the tearing line of sewing machine stitch shape or deformed sewing machine stitch shape on the opposite pair of faces of bag body 1000 (hereinafter will be set on mutually opposite side 1000A) The tear line on the surface 1000B is called "tear line 2000", and the tear line on the other side 1000B is called "tear line 3000"). This prior art packaging bag 1000 can be easily opened by tearing at portions of the tear line 2000 and the tear line 3000 respectively provided on the first surface 1000A and the second surface 1000B. For example, Japanese Utility Model Registration No. 2566444 discloses a packaging bag pro...

Claims

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Application Information

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Patent Type & Authority Applications(China)
IPC IPC(8): B65D33/25B65D33/36B65D75/58
CPCB65D75/5805B65D33/2533B65D33/00
Inventor 坂井宏武富弘之桥谷祐司冈田博文平川真一
Owner HISAMITSU PHARM CO INC
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