Plastic film bag with tear tapes

Abstract

A plastic film bag, including a seam welded part, a plastic film bag body part, and a tear tape to open the plastic film bag, is disclosed. In the plastic film bag, the tear tape is made of a monodirectionally oriented polypropylene film and is attached to an outer surface of the plastic film bag at a predetermined position between the seam welded part and the plastic film bag body part. Because the plastic film bag of the present invention is realized such that the tear tape is attached to the outer surface of the plastic film bag using an adhesive, the tear tape does not compromise the function of sealing the package, but allows the package to be completely sealed, unlike a conventional tear tape attached to the inner surface of a plastic film bag.

Description

RELATED U.S. APPLICATIONS [0001] Not applicable. STATEMENT REGARDING FEDERALLY SPONSORED RESEARCH OR DEVELOPMENT [0002] Not applicable. REFERENCE TO MICROFICHE APPENDIX [0003] Not applicable. FIELD OF THE INVENTION [0004] The present invention relates, in general, to bags made of plastic films and provided with tear tapes and, more particularly, to a plastic film bag which can be opened using tear tapes and can be completely sealed despite the tear tapes being provided on the film bag. BACKGROUND OF THE INVENTION [0005] Plastic film bags, which are shaped as bags using plastic films as shown in FIG. 1, have been widely used as packaging materials to package a variety of foods, such as processed food or snacks, in recent years. [0006] In the prior art, the plastic film bags to package food may be produced by cutting a long tubular plastic film, which is continuously extruded from an extruder, into a plurality of tubular pieces having predetermined lengths and by seaming the cut ends ...

AI Technical Summary

Benefits of technology

[0018] The above and other objects, features and other advantages of the present invention will be more clearly understood from the following detailed description when taken in conjunction with the accompany

Problems solved by technology

However, the manner of cutting and opening a plastic film using a conventional tear tape is problematic in that a tear tape must be attached on the inner surface of the polypropylene film using an adhesive and, furthermore, one end of the tear tape must protrude outside the plastic film so as to allow a user to hold the end of the tear tape and pull the tear tape backwards so as to cut and open the plastic film.

Thus, this manner cannot completely seal the package.

Thus, although the manner using a conventional tear tape has been recognized as a simple and easy manner, it is not preferably adapted to package some foods, for example, precooked food, stuffed pancakes, bread, or fast food, the quality of which may be greatly reduced when the food in the package is gradually dried or comes into contact with atmospheric air.

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