CN111470170A - Packaging opening structure - Google Patents

Abstract

The invention discloses a package opening structure, comprising a surface layer film (1), an adhesive layer (2) and an inner layer film (3); the adhesive layer is arranged between the surface layer film and the inner layer film; the The sticky layer is composed of a sticky adhesive at room temperature, a handle area (4) is arranged on the surface film, and a built-in upper tangent line (5) is arranged in the handle area. There are two outer tangent lines (6) on both sides of the outer periphery of the outer tangent, the upper end points of the two outer tangent lines are in the shape of surrounding the upper tangent line, and a handle (8) is arranged in the handle area, from the After the upper tangent line is pulled apart, the corresponding part of the surface layer film forms the handle. On the one hand, the present invention can solve the problems of repeatable opening and airtightness, and on the other hand, it can easily distinguish whether the packaging structure has been opened relative to the factory setting.

Description

A packaging opening structure

technical field

The invention relates to the field of packaging bags, in particular to a packaging opening structure.

Background technique

Packaging bags are low-cost and convenient, and are widely used in the transportation and storage of various food and other consumer goods. Therefore, there are also various designs for packaging bags. However, in general, various designs mainly solve the problems of packaging degree and packaging sealing of products by packaging bags.

In the prior art, the application number is 2017114645335, and the patent name is: a re-openable sealing structure, a packaging container and a preparation method. The recorded packaging structure can realize the re-opening of the packaging container, which is convenient for taking food or content items and Store leftover food or items; and while achieving the airtightness of the package, the contents are kept dry and fresh, which is very suitable for dry food. Although the above structure can realize repeated opening, there is a problem that the subsequent sealing performance is poor due to repeated opening, and the handle is also prone to breakage and unrestricted elongation. At the same time, for a complete packaged product, if this design is adopted, when consumers buy the product, it is difficult to distinguish whether the product has been opened or whether it is still sealed before leaving the factory.

SUMMARY OF THE INVENTION

The present invention provides a package opening structure, which on the one hand solves the problems of repeatable opening and airtightness of the package opening structure, and on the other hand can easily distinguish whether the package structure has been opened relative to the factory setting.

In order to solve the above-mentioned technical problems, the technical scheme of the present invention is: a package opening structure, comprising a surface layer film, an adhesive layer and an inner layer film; the adhesive layer is arranged between the surface layer film and the inner layer film; The viscous layer is composed of a viscous adhesive at room temperature, a handle area is arranged on the surface film, and a section of built-in upper tangent line is arranged in the handle area, and both ends of the upper tangent line are exposed on the On the surface film, two outer tangent lines are arranged on both sides of the outer periphery of the handle area, the upper end points of the two outer tangent lines are exposed on the surface layer film, and the upper end points of the two outer tangent lines are surrounded by The shape of the upper tangent line, the exposed two ends of the upper tangent line and the two sections of the outer tangent line are provided with an interval that is not closed and connected, and a handle is provided in the handle area, which is pulled from the upper tangent line. The corresponding portion of the surface film forms the handle.

Preferably, a limit line is provided at the bottom of the handle, the shape of the limit line matches the handle, and the limit line is located inside the two outer tangent lines.

Preferably, limit positions are provided at both ends of the limit line.

Preferably, the two ends of the restriction line are bent inward to each other to form the restriction position.

Preferably, a seal is provided inside the handle, an opening is provided on the inner film, and the seal matches the opening.

Preferably, the surface film, the adhesive layer and the seal are in a trapezoidal structure in sequence.

Preferably, the middle part of the upper tangent line is located between the surface film and the adhesive layer or the upper tangent line is located between the adhesive layer and the inner layer film.

Preferably, the upper tangent is in the shape of an arc or a straight line, and the upper end points of the two outer tangents surround the upper tangent in a shape of a rectangle, an ellipse, or a hook.

Beneficial effects achieved by the present invention: relative to the opening structure, the packaging opening structure of the present invention is provided with an upper tangent line and an outer tangent line, and a handle is formed by pulling the upper tangent line, and the process of pulling the handle outward will break through the gap between the upper tangent line and the outer tangent line. The gap, once the gap is broken, the consumer can easily tell if the bag has been opened. Moreover, through the guiding action of the outer tangent, the handle will not change direction casually in the process of pulling outward, and will be pulled downwards with the guidance of the outer tangent. Moreover, the present invention is also provided with a limit line and a limit position, which on the one hand can play a guiding role, and on the other hand, can also ensure that the handle will not be stretched infinitely, so that the handle can be used. At the same time, the present invention is provided with a seal on the handle and an opening on the inner film. The matching of the seal and the opening can ensure tight sealing. The surface film, the viscous layer and the seal are in sequence in a trapezoidal structure, and the trapezoidal structure can ensure the protruding part of the viscous layer. It is pasted on the inner film, so that the handle can be used for many times and can ensure the tight connection of the seal and the opening.

Description of drawings

Fig. 1 is a perspective view 1 of the package opening structure of the present invention, the upper tangent line and the outer tangent line are arranged between the surface film and the adhesive layer.

Fig. 2 is a second perspective view of the package opening structure of the present invention, the upper tangent line and the outer tangent line are arranged between the adhesive layers and the inner layer film.

Fig. 3 is a three-dimensional view of the opening structure of the package according to the present invention, and the seal is directly arranged on the surface film.

Fig. 4 is a fourth perspective view of the package opening structure of the present invention, and the seal is arranged on the adhesive layer.

Fig. 5 is a perspective view 5 of the opening structure of the package according to the present invention. The surface film, the adhesive layer and the seal are in a trapezoidal structure in sequence.

FIG. 6 is a top view of the package opening structure of the present invention.

FIG. 7 is a cross-sectional view of the package opening structure of the present invention.

The name or process name of the corresponding part represented by the numbers or letters in the figure: 1. Surface film; 2. Adhesive layer; 3. Inner film; 4. Handle area; 5. Upper tangent; 6. Outer tangent; 7. Interval ; 8. Handle; 9. Sealing; 10. Opening; 11. Limiting line; 12. Limiting position.

The accompanying drawings are for illustrative purposes only, and should not be construed as limitations on this patent; in order to better illustrate the present embodiment, some parts of the accompanying drawings may be omitted, enlarged or reduced, and do not represent the size of the actual product; for those skilled in the art For persons, it is understandable that some well-known structures and their descriptions in the accompanying drawings may be omitted; the same or similar reference numerals correspond to the same or similar components; the terms describing the positional relationship in the accompanying drawings are only used for exemplary description and cannot be understood to limit this patent.

Detailed ways

In order to facilitate the understanding of those skilled in the art, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. details as follows:

Embodiment 1

As shown in Figure 3 and Figure 6, the package opening structure includes a surface film 1, an adhesive layer 2 and an inner layer film 3; the adhesive layer 2 is arranged between the surface layer film 1 and the inner layer film 3; It is composed of a viscous adhesive, and a handle area 4 is arranged on the surface film 1, as shown in the dotted frame in Figure 6 and 7, that is, the handle area 4, and a built-in upper tangent line 5 is arranged in the handle area 4. Both ends of the upper tangent line 5 are exposed on the surface film 1. As shown in Figure 6, the two ends of the upper tangent line 5 are exposed outside the handle area 4, and two sections of the outer tangent line 6 are arranged on both sides of the outer periphery of the handle area 4. The upper end point of the outer tangent line 6 is exposed on the surface film 1, the upper end point of the two outer tangent lines 6 is in the shape of surrounding the upper tangent line 5, and there is an open connection between the exposed two ends of the upper tangent line 5 and the two sections of the outer tangent line 6. The interval 7, as shown in the blank area in the circle in FIG. 6, is provided with a handle 8 in the handle area 4, and the corresponding part of the surface film 1 forms a handle 8 after being pulled apart from the upper tangent 5.

Specifically, the lower part of the handle 8 is provided with a limit line 11, the shape of the limit line matches the handle, and the limit line 11 is located on the inner side of the two outer tangent lines 6, and the two ends of the limit line 11 are provided with limit positions 12, The two ends of the restriction line 11 are bent inward to each other to form the restriction position 12 . Of course, the shape of the restriction position 12 can also be set to other shapes, and the two ends are not limited to be bent inward to each other. As shown in Fig. 6, the limit line can prevent the handle from exceeding the limit in the process of pulling up, and can prevent the handle from being pulled.

Specifically, a seal 9 is provided inside the handle 8 , an opening 10 is provided on the inner film 3 , and the seal 9 matches the opening 10 . The position of the opening 10 is not limited, it can be directly arranged on the inner layer film, as shown in FIG. In this embodiment, the openings are directly disposed on the backing film, as shown in FIG. 3 .

Specifically, the middle part of the upper tangent line 5 is located between the surface film 1 and the adhesive layer 2 or the upper tangent line 5 is located between the adhesive layer 2 and the inner layer film 3 , as shown in FIGS. 1 and 3 . In this embodiment, the middle part of the upper tangent line 5 is arranged between the surface film 1 and the adhesive layer 2, as shown in FIG. 3 .

Specifically, the upper tangent line 5 is in the shape of an arc or a straight line, and the shape of the upper end points of the two outer tangent lines 6 surrounding the upper tangent line 5 is not limited to a rectangle, an ellipse or a hook shape, as long as it can surround the upper tangent line, when the handle is pulled outward, It can be used to guide the handle to pull down along the outer tangent. In this embodiment, the upper end points of the two outer tangent lines 6 are hook-shaped, as shown in FIG. 6 .

Embodiment 2

The settings of the specific embodiment 2 and the specific embodiment 1 are basically the same, the main difference is: the surface film 1, the adhesive layer 2 and the seal 9 are in a trapezoidal structure in sequence, and the upper tangent 5 is located between the adhesive layer 2 and the inner layer film 3, as shown in Figure 5 shown. There is a step difference in the trapezoidal structure, which can ensure that the seam and the opening are connected more closely.

Embodiment 3

Embodiment 3 is basically the same as Embodiment 1. The main difference is that there is no seal 9 inside the handle 8, nor an opening 10 on the inner film 3, as shown in Figures 1, 2, and 7. The handle is directly pasted on the adhesive layer or the handle is directly pasted on the inner film through the adhesive layer. In this embodiment, it is directly pasted on the adhesive layer, as shown in FIG. 1 .

Obviously, the above-mentioned embodiments of the present invention are only examples for clearly illustrating the present invention, rather than limiting the embodiments of the present invention. For those of ordinary skill in the art, changes or modifications in other different forms can also be made on the basis of the above description. There is no need and cannot be exhaustive of all implementations here. Any modifications, equivalent replacements and improvements made within the spirit and principle of the present invention shall be included within the protection scope of the claims of the present invention.

Claims (8)

1. A package opening structure comprises a surface film (1), an adhesive layer (2) and an inner film (3); the adhesive layer (2) is arranged between the surface film (1) and the inner film (3); the viscous layer (2) is composed of adhesive with viscosity at normal temperature, and is characterized in that: the surface layer film is characterized in that a handle area (4) is arranged on the surface layer film (1), a section of built-in upper tangent line (5) is arranged in the handle area (4), two ends of the upper tangent line (5) are exposed on the surface layer film (1), two sections of external tangent lines (6) are arranged in two sides of the periphery of the handle area (4), the upper end points of the external tangent lines (6) are exposed on the surface layer film (1), the upper end points of the two sections of the external tangent lines (6) are in a shape surrounding the upper tangent line (5), an interval (7) which is not connected in a sealing mode is arranged between the two exposed end points of the upper tangent line (5) and the two sections of the external tangent lines (6), a handle (8) is arranged in the handle area (4), and the surface layer film (1) which corresponds to the upper tangent line (5) is partially pulled open to form the handle (8).

2. The package opening structure according to claim 1, wherein: the lower part of the handle (8) is provided with a limiting line (11), the shape of the limiting line is matched with that of the handle, and the limiting line (11) is positioned on the inner sides of the two sections of the external tangent lines (6).

3. The package opening structure according to claim 2, wherein: limiting positions (12) are arranged at two end points of the limiting line (11).

4. The package opening structure according to claim 3, wherein: the two ends of the limiting line (11) are bent inwards to form the limiting position (12).

5. The package opening structure according to claim 1 or 2, wherein: handle (8) inside is equipped with seals (9) be equipped with opening (10) on nexine film (3), seal (9) with opening (10) phase-match.

6. The package opening structure according to claim 5, wherein: the surface layer film (1), the adhesive layer (2) and the seal (9) are in a trapezoidal structure in sequence.

7. The package opening structure according to claim 1, wherein: the middle part of the upper tangent line (5) is positioned between the surface layer film (1) and the adhesive layer (2) or the upper tangent line (5) is positioned between the adhesive layer (2) and the inner layer film (3).

8. The package opening structure according to claim 1, 2 or 7, wherein: the upper tangent (5) is arc-shaped or linear, and the upper end points of the two sections of the outer tangents (6) surround the upper tangent (5) and are rectangular, elliptical or hook-shaped.

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