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Plastic bag with zippered small bag

A technology for plastic bags and zippers, applied in the field of plastic bags, can solve the problems of blocking zippers and inconvenient removal of fluids

Inactive Publication Date: 2003-11-12
ISHIZAKI SHIZAI
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

[0003] However, in order to ensure good sealing and sealing performance of the zipper over the entire width of the opening on one side of the plastic bag, advanced technology and large-scale equipment are required.
On the other hand, even if it is desired to ensure the welding and airtight performance of the zipper, it is inconvenient to take out the fluid from the large plastic bag because the whole side is an opening.
Also, it can happen that fluid blocks the zipper

Method used

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  • Plastic bag with zippered small bag
  • Plastic bag with zippered small bag
  • Plastic bag with zippered small bag

Examples

Experimental program
Comparison scheme
Effect test

Embodiment Construction

[0019] Hereinafter, referring to the accompanying drawings, an embodiment of the plastic bag of the present invention will be described.

[0020] figure 1 It is a front view of the plastic bag which concerns on one Embodiment of this invention. The bag 10 is composed of a large bag 11 and a nozzle-shaped small bag 21 formed of a plastic film, respectively. The big bag 11 is a bag made as a known welding bag in the past, and a raw material film is folded into two, or two raw material films are overlapped, and its four sides are welded (such as figure 1 Parts A, B, C, and D indicated by the slashes in ) are formed. Also, the lower edge portion D is welded after filling the large bag 11 with a fluid.

[0021] The small bag 21 is formed by inserting and welding between the films of the upper welding part C of the large bag 11 . Such as Figure 2A and Figure 2B As shown, the two side parts E, E and the end part F of the two heat-welding plastic films 22 and 22 are welded (sh...

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PUM

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Abstract

A bag having a zippered nozzle-shaped small bag of a plastic film installed at the fused portion of a large bag formed by fusing the plastic film, wherein a fusion obstructing treatment is applied to the inner surface of the small bag to prevent the inner surface of the small bag from being fused before the small bag is fused to the fused portion of the large bag, the small bag is pulled out to the outside of the large bag in the state of being inverted by, for example, inserting fingers thereinto and grasping the inner surface thereof, the tip part of the pulled out small bag is cut out to form an outlet and contents are taken out from the outlet and, after the necessary amount of the content is taken out, the outlet is closed properly with a clip and pressed into the small bag, and then the zipper is closed.

Description

technical field [0001] The present invention relates to a plastic bag, in particular, the present invention relates to a plastic bag provided with a zipper pouch. Background technique [0002] Currently, various plastic bags are available in the market. The opening of the plastic bag is provided with a zipper consisting of a pair of concave and convex parts, so that the opening can be reliably zippered and closed. Various substances can be filled in the above-mentioned plastic bags, but in order to be able to store fluids (powders, colloids, sticky substances, oils, synthetic pastes, printing inks, paints, etc.) with good resealability, Preferably, a large plastic bag with a zipper is used. [0003] However, in order to secure good welding and sealing performance of the zipper over the entire width of the opening on one side of the plastic sack, advanced technology and large-scale equipment are required. On the other hand, even if it is desired to ensure the welding and s...

Claims

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Application Information

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IPC IPC(8): B65D83/00B29C65/00B65D33/25B65D33/36B65D33/38B65D75/58
CPCB65D33/2525B29C66/004B65D75/5883B29C65/02B29C66/1122B29C66/43121B29C66/474B29C66/723
Inventor 石崎昭
Owner ISHIZAKI SHIZAI
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