JP2002193281A - Packaging bag with zipper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a packaging bag with a zipper, which can be reopened without touching contents by hands. SOLUTION: This packaging bag with the zipper 2 is provided with a bag body 1, which is composed of an flexible film and has a take-out opening 6 on an upper-end side and a pair of mutually opposed side walls 7 and 8, and the zipper 2 for sealing the take-out opening 6 openably/closably. The zipper 2 has a protrusion 13, which is provided in such a manner as to cross an inner surface of one side wall 7 of the bag body 1, and a recess 14 which is provided in such a manner as to cross the other side wall 8 thereof and engaged with the protrusion 13 so as to be capable of free engagement/disengagement. The packaging bag is characterized as follows: finger grips 3 and 4 are provided in upper parts of the side walls 7 and 8, respectively; and the engagement of the protrusion 13 and the recess 14 is released when the finger grips 3 and 4 are pulled in a direction of separation from each other.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a zipper-equipped packaging bag which can be resealed after opening.
More particularly, the present invention relates to a zipper-equipped packaging bag which allows resealing without touching the contents.

[0002]

2. Description of the Related Art As a packaging bag which can be resealed after opening, a packaging bag with a zipper is known. This type of packaging bag is made of a flexible film, has an outlet at an upper end side and has a pair of side walls opposed to each other, and a zipper for sealing the outlet of the bag so that it can be opened and closed. The zipper is provided so as to traverse the inner surface of one side wall of the bag body, and is provided so as to traverse the inner surface of the other side wall of the bag body, and is freely detachable from the ridge. And an engaging concave streak.

When taking out the contents enclosed in the packaging bag, the upper end of one side wall of the bag and the upper end of the other side wall of the bag are held with fingers and pulled in directions away from each other.
Then, the engagement between the ridge and the concave strip is released and the outlet is opened, so that the contents are taken out through the outlet. When resealing the packaging bag, press the outer surface of the upper end portion of one side wall of the bag body and the outer surface of the upper end portion of the other side wall of the bag body inward with a finger, and extend the ridges and recesses over the entire length. Engage and seal the outlet.

[0004]

In this type of conventional packaging bag, there is a problem that the hands become dirty at the time of resealing. In other words, when the contents are liquid or viscous, the contents adhere to the inner surface of the upper end of the bag when the contents are taken out.
Since the finger touches the inner surface of the upper end of the bag at the time of resealing, it is inevitable that the contents adhere to the finger.

Conventionally, the dirt attached to the finger migrates to the contents adhered to the upper end of the packaging bag, and when the contents are taken out again, the dirt may fall into the contents. If the thing was food, there was a problem in terms of hygiene.

SUMMARY OF THE INVENTION The present invention has been made in view of the above-mentioned problems, and has as its object to provide a zipper-equipped packaging bag which can be reopened without touching the contents. .

[0007]

In order to achieve the above-mentioned object, the invention of claim 1 comprises a flexible film,
A bag having an outlet at the upper end and having a pair of side walls facing each other, and a zipper for sealing the outlet so that it can be opened and closed, wherein the zipper has an inner surface of one side wall of the bag. A ridge provided to traverse,
A packaging bag with a zipper, which is provided so as to traverse the inner surface of the other side wall of the bag body and has a concave ridge that is removably engaged with the convex ridge. And the engagement between the ridges and the ridges is released when the knobs are pulled in directions away from each other.

According to a second aspect of the present invention, in the packaging bag of the first aspect, a non-slip portion is provided on an outer surface of each of the knob portions.

According to a third aspect of the present invention, in the packaging bag of the second aspect, the non-slip portion has a satin-like unevenness.

[0010]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, specific embodiments of the present invention will be described with reference to the drawings. 1 is a front view of an embodiment of the present invention, FIG. 2 is a cross-sectional view taken along line AA ′ of FIG.
(A) is a diagram showing a state in which the outlet is sealed, (b) is a diagram showing a state in which the outlet is opened, FIG. 3 is a developed view of a film forming a spout, and FIG. It is an explanatory view of a use method.

The packaging bag shown in FIGS. 1 and 2 is for hermetically sealing and packaging nursing foods and the like, and has a rectangular opening having an outlet 6 at an upper end side and a pair of side walls 7 and 8 facing each other. A bag 1, a zipper 2 for opening and closing the opening 6 of the bag 1, and a first knob portion 3 provided at an upper end of one side wall 7 of the bag 1; The bag includes a second knob portion provided at an upper end portion of the other side wall of the first bag and a spout attached to an upper end portion of the bag body.

The bag body 1 is obtained by folding a flexible rectangular film in two at the center and sealing the film in a band along both sides so that the bent portion becomes the bottom. FIG.
The hatched portions indicate seal portions. In the present embodiment, the film forming the bag 1 is PET (1
2 μm), aluminum (7 μm), CPP (60 μm)
m) are sequentially laminated, but the invention is not limited to this.

At the upper end of one side wall 7 of the bag 1, a horizontally long rectangular knob forming piece 9 having the same width as the side wall 7 is integrally formed, and the upper end of the other side wall 8 of the bag 1 is formed. , A knob portion forming piece 10 having the same shape and the same size as the knob portion forming piece 9 is integrally formed.

The zipper 2 is made of a synthetic resin. The first zipper forming member 11 in the form of a strip which is thermally bonded so as to cross the inner surface of one side wall 7 of the bag 1 and the other side wall 8 of the bag 1. A second zipper forming member 12 in the form of a strip that is thermally bonded across the inner surface.

The first zipper forming member 11 has a ridge 13 extending on the inner surface thereof over the entire length in the longitudinal direction.
The second zipper forming member 12 has, on its inner surface side, a concave strip 14 extending over the entire length in the longitudinal direction. Ridge 1
3 and the concave strip 14 are engaged with each other in a detachable manner, and seal the outlet 6 in the engaged state.

As shown in FIG. 3, the film forming the spout 5 has a front side forming piece 15 and a rear side forming piece 16 formed symmetrically. The front side forming piece 15 and the rear side forming piece 16 are each formed in a T-shape, and are connected to each other at an upper end portion having a small width. The front side forming piece 15
The width of the lower end of the rear side forming piece 16 is equal to the width of the bag 1.

At the lower end of the front side forming piece 15, a knob forming piece 17 of substantially the same shape and size as the knob forming piece 9 of the side wall 7 is provided.
Are formed integrally, and at the lower end of the rear side forming piece 16,
A knob part forming piece 18 having substantially the same shape and the same size as the knob part forming piece 10 of the side wall 8 is integrally formed.

This film is folded in two at the center, the front side forming piece 15 and the rear side forming piece 16 are overlapped, and these are sealed in a strip along both sides and the top side.
V-shaped notch 19 at the upper end of one side (see FIG. 1)
Is formed.

The knob-forming pieces 17 and 18 are bent outward, respectively, and the inner surfaces thereof are superimposed on the inner surfaces of the knob-forming pieces 9 and 10 of the side walls 7 and 8 to extend along both sides and the top side. And sealed in a belt shape. Thus, the spout 5 is attached to the upper end of the bag 1 and the knobs 3 and 4 are formed.

In order to take out the contents L sealed in the above-mentioned packaging bag, the knobs 3 and 4 are respectively held by fingers and pulled in the front-rear direction so as to be separated from each other. Then, the convex 13 and the concave engagement of the zipper 2 are disengaged and the outlet 6 is opened (see FIG. 2B). In addition, the tip of the spout 5 on the side of the notch 19 is pinched by a finger, and the tip of the spout 5 is cut laterally with the notch 19 as a fulcrum, and the spout 5 is opened.

Then, when the packaging bag is turned upside down in this state, as shown in FIG. 4, the contents L contained in the bag body 1 are discharged from the tip end of the spout 5 through the outlet 6. . When all the contents L in the bag 1 are not to be poured out, the packaging bag is turned upside down and the outer surfaces of the upper portions of the side walls 7 and 8 of the bag 1 are pushed with a finger so that the ridges 13 and the recesses 14 are formed over the entire length. Engage and seal the outlet 6.

At the time of reopening, as in the case of opening, holding the knobs 3 and 4 with fingers and pulling them in directions away from each other, the engagement between the ridge 13 and the concave 14 is released. In this way, resealing can be performed without the hand touching the contents.

Note that the present invention is not limited to the above-described embodiment, and various modifications can be made.

For example, in the embodiment described above, the knob is formed integrally with the bag, but a knob formed separately from the bag may be attached to the bag.

In order to prevent the finger from slipping when the knob is pulled, a non-slip portion may be provided on the outer surface of the knob. As a specific example thereof, formation of fine satin-like irregularities on the outer surface of the knob portion can be cited.

In addition, various modifications can be made to the above-described embodiment without departing from the gist of the present invention.

[0027]

As described above, in the packaging bag of the present invention, the engagement between the ridges and the ridges is released by pulling the knob portions provided on the upper portions of the pair of side walls in the direction away from each other. As a result, the contents can be reopened without touching the contents.

[Brief description of the drawings]

FIG. 1 is a front view of an embodiment of the present invention.

FIGS. 2A and 2B are cross-sectional views taken along the line AA ′ of FIG. 1, wherein FIG. 2A is a diagram illustrating a state where an outlet is sealed, and FIG. 2B is a diagram illustrating a state where the outlet is opened.

FIG. 3 is a development view of a film forming a spout.

FIG. 4 is an explanatory diagram of a method of using the embodiment.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Bag 2 Zipper 3 Knob part 4 Knob part 6 Outlet 7 Side wall 8 Side wall 13 Convex line 14 Concave line

Continued on front page F-term (reference) 3E064 AA03 BA17 BA30 BA55 BB03 BC18 EA30 FA04 FA05 HN06 HN13 HP01 3E067 AA03 AA04 AB01 BA12A BB12A BB14A BB25A EA22 EB17 EE07 GD10

Claims (3)

[Claims] 1. A bag made of a flexible film, having an outlet on an upper end side and having a pair of side walls facing each other, and a zipper for sealing the outlet so that the outlet can be opened and closed, wherein the zipper is provided. A ridge provided so as to cross the inner surface of one side wall of the bag, and a ridge provided so as to cross the inner surface of the other side wall of the bag, and engages with the ridge in a detachable manner. A zipper-equipped packaging bag having a concave line, wherein a knob portion is provided on each of the upper portions of the pair of side walls, and when the knob portions are pulled in a direction away from each other, the engagement between the convex line and the concave line is released. A packaging bag with a zipper, characterized in that: 2. The packaging bag according to claim 1, wherein a non-slip portion is provided on an outer surface of each of the knob portions. 3. The packaging bag according to claim 2, wherein the non-slip portion has a satin-like unevenness.