Easily-broken extrusion type composite film bag

Abstract

The utility model provides an easy-to-break extrusion type composite film bag which comprises a bottom piece, a first bending part and a second bending part are arranged on the bottom piece, and an opening line is arranged between the first bending part and the second bending part; the composite film body is hot-pressed on the bottom piece, and an accommodating space is formed by the composite film body and the bottom piece; the supporting part is arranged at the position of the opening line, the first bending part is turned over and folded relative to the second bending part, and extrusion force acts on the supporting part so that the opening line can be opened. According to the extrusion type composite film bag easy to break off, the supporting part is utilized, the opening line is fully opened through the supporting part, when the opening line needs to be opened, the first bending part and the second bending part can be held by a hand to be folded in the bending direction, at the moment, extrusion force can act on the supporting part to open the opening line, and then the opening line is opened. And the opening portability of the composite film bag is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging bags, in particular to an easily breakable and extrudable composite film bag. Background Art

[0002] A composite film bag is a material with multiple layers of protection, having good moisture-proof, oxygen-isolating and sealing effects, and is usually used for packaging liquid or semi-solid products.

[0003] The composite film bag is often provided with triangular notches on one or both sides. When opening the composite film bag, two hands respectively hold the upper and lower ends of the composite film bag, and then tear it along the triangular notch. Since it is not easy to control the size of the opening when tearing, the opening is opened too much, resulting in the product splashing out, or the opening is too small and it is not easy to extrude the product, thus affecting the user experience. Summary of the Utility Model

[0004] The purpose of the utility model is to solve the above problems existing in the prior art.

[0005] To achieve the above purpose, the utility model can be realized by the following technical solutions: An easily breakable and extrudable composite film bag, comprising:

[0006] A bottom film, on which a first bending part and a second bending part are arranged, and an opening line is arranged between the first bending part and the second bending part;

[0007] A composite film body, which is hot-pressed on the bottom film and forms an accommodating space with the bottom film;

[0008] A support part, which is arranged at the opening line. The first bending part is flipped and folded relative to the second bending part, and the extrusion force is applied to the support part to open the opening line.

[0009] In an embodiment of the utility model, the support part comprises a first convex part and a third convex part, and the first convex part and the third convex part are connected to form the support part.

[0010] In an embodiment of the utility model, the support part comprises a first convex part and a third convex part, and the first convex part and the third convex part are connected to form the support part.

[0011] In an embodiment of the utility model, the first convex part and the third convex part are symmetrically arranged on the bottom film and form a support part with an isosceles triangle cross-section.

[0012] In an embodiment of the utility model, the hypotenuse of the support part forms a first inclination angle with the bottom film.

[0013] In the embodiment of the utility model, the support portion includes a second protruding portion and a fourth protruding portion, and the second protruding portion and the fourth protruding portion are connected via an inclined surface to form the support portion.

[0014] In the embodiment of the utility model, the second protrusion and the fourth protrusion are symmetrically arranged on the bottom film through two inclined surfaces and constitute a support portion with an M-shaped cross section.

[0015] In the embodiment of the utility model, the inclined surface and the bottom film form a second inclined angle.

[0016] In the embodiment of the utility model, a sealing portion is provided on the bottom film, and a circle of sealing portions is provided around the periphery of the composite film body.

[0017] In the embodiment of the utility model, the support portion is an integrally formed support structure.

[0018] In the embodiment of the utility model, the inclination angle range of the first inclination angle is 45-90°.

[0019] Compared with the prior art, the advantages of the present application are: the support part is utilized to fully open the opening line. When the opening line needs to be opened, the first bending part and the second bending part can be held by hand and folded in the bending direction. At this time, the extrusion force will act on the support part to open the opening line, thereby improving the portability of opening the composite film bag. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a schematic diagram of the structure of the front side of the composite film bag;

[0021] Figure 2 It is a schematic diagram of the structure on the back of the composite film bag;

[0022] Figure 3 It is a schematic diagram of the overall planar structure;

[0023] Figure 4 It is the overall plan view of the support part in the bending opening line;

[0024] Figure 5 yes Figure 4 A plan view of the connection structure of the first protrusion and the third protrusion in the middle AA direction;

[0025] Figure 6 yes Figure 4 A plan view of the connection structure of the first protrusion and the third protrusion in the middle BB direction;

[0026] Figure 7 is an overall plan view of a support portion in a bent opening line in another embodiment;

[0027] Figure 8 yes Figure 7Plan view of the connection structure between the second and fourth protrusions in the C-C direction;

[0028] Figure 9 is Figure 7 Plan view of the connection structure between the second and fourth protrusions in the D-D direction;

[0029] Figure 10 It is a schematic plan view of a composite film bag with a support part located on a base film in another embodiment.

[0030] Explanation of reference numerals:

[0031] 1. Base film; 11. First bending part; 12. Second bending part; 2. Opening line; 21. Support part; 211. First protrusion; 212. First inclination angle; 213. Second protrusion; 214. Inclined surface; 215. Second inclination angle; 216. Third protrusion; 217. Fourth protrusion; 3. Composite film body; 31. Accommodating space; 4. Sealing part; 5. Bending direction. Detailed implementation manners

[0032] The following are specific embodiments of the present invention and in combination with the accompanying drawings, the technical solutions of the present invention will be further described.

[0033] As Figure 1-10 shown, an easily breakable extrusion-type composite film bag includes:

[0034] A base film 1, on which a first bending part 11 and a second bending part 12 are provided, and an opening line 2 is provided between the first bending part 11 and the second bending part 12;

[0035] A composite film body 3, which is hot-pressed on the base film 1 and forms an accommodating space 31 with the base film 1;

[0036] A support part 21, which is provided at the opening line 2, and the first bending part 11 is flipped and folded relative to the second bending part 12 to apply an extrusion force to the support part 21 to open the opening line 2.

[0037] Specifically, the bottom film 1 is a multilayer structural material formed by combining hard sheets such as PP, PS, PET (with high brittleness) and other materials (aluminum foil, alumina-coated film, PET film, NY, PE, CPP, etc.) through solvent-free, dry lamination, extrusion and other processes. The material is cut into a rectangle, and the four top corners of the rectangle are all set with arcs to prevent the bottom film 1 from scratching the arm. The composite film body 3 is placed on the bottom film 1 and connected by hot pressing, so that the soft composite film body 3 and the bottom film 1 form a accommodating space 31, and the accommodating space 31 can accommodate a large amount of liquid or semi-solid products. When opening, the first bending part 11 and the second bending part 12 can be held and folded to apply the extrusion force to the support part 21, so that the opening line 2 is opened smoothly, so that the user can better squeeze out the product in the composite film bag, thereby improving the user experience.

[0038] As an embodiment further provided by the present invention, the support portion 21 includes a first protrusion 211 and a third protrusion 216, and the first protrusion 211 and the third protrusion 216 are connected to form the support portion 21; further, the first protrusion 211 and the third protrusion 216 are symmetrically arranged on the bottom film 1 and constitute the support portion 21 with an isosceles triangle cross section, and the hypotenuse of the support portion 21 forms a first inclination angle 212 with the bottom film 1, and the first inclination angle 212 is as follows Figure 4 The E end shown utilizes an isosceles triangle structure to improve the supporting effect of the support portion 21 on the opening line 2, making the bottom film 1 easier to open, and the sharp corner of the isosceles triangle is the opening line 2. After stamping, the sharp corner is the weakest. When the bottom film 1 is held by hand for folding, the force will act on the sharp corner, making the opening line 2 easily open, thereby improving the portability of the composite film bag.

[0039] As an embodiment further provided by the present invention, the support portion 21 includes a second protrusion 213 and a fourth protrusion 217, and the second protrusion 213 and the fourth protrusion 217 are connected by an inclined surface 214 to form the support portion 21; further, the second protrusion 213 and the fourth protrusion 217 are symmetrically arranged on the bottom film 1 through two inclined surfaces 214 and constitute a support portion 21 with an M-shaped cross-section, and the inclined surface 214 forms a second inclined angle 215 with the bottom film 1, and the second inclined angle 215 is as shown in FIG. Figure 5 At the F end shown, the M-shaped support portion 21 will make the extrusion force more concentrated when the bottom sheet 1 is folded, the support portion 21 after punching will be thinner, and the opening line 2 will be easier to open.

[0040] As an embodiment further provided by the present invention, a sealing portion 4 is provided on the base film 1, and a circle of sealing portion 4 is provided around the composite film body 3, the sealing portion 4 is also the hot pressing area, the composite film body 3 is placed on the base film 1, and is hot pressed by a hot press to form a accommodating space 31 between the composite film body 3 and the base film 1, and the sealing portion 4 is also the indentation produced by the hot press.

[0041] As a further embodiment provided by the present utility model, the supporting part 21 is an integrally formed supporting structure, and the supporting part 21 is formed by stamping, which further improves the integrity of the opening line 2 when it is opened.

[0042] As a further embodiment provided by the present utility model, the inclination angles of the first inclination angle 212 and the second inclination angle 215 are both in the range of 45 - 90°. The larger the angles of the first inclination angle 212 and the second inclination angle 215 are, the smaller the force required to open the composite film bag is, that is, the more labor-saving it is.

[0043] Working principle: The opening line 2 and the supporting part 21 are arranged on the front surface of the negative film 1. In the initial state, the opening line 2 is not broken, and the internal object is in the composite film body 3; when the composite film bag needs to be used, hold the first bending part 11 and the second bending part 12 and fold them in the bending direction 5, apply the extrusion force to the supporting part 21, so that the opening line 2 is opened along the cutting line, and the internal object flows out of the composite film bag through the opening line 2, which improves the portability of opening the composite film bag and greatly improves the user experience.

[0044] For the above technical solutions of the present utility model, aiming at the technical problem that the prior art solution is too single, a solution significantly different from the prior art is provided. The parts not involved in the technical solutions of this application are the same as the prior art or can be implemented by using the prior art, and will not be elaborated here.

[0045] The technical solutions in the above embodiments have clearly and completely described the content of the present utility model. Obviously, the described embodiments are only a part of the embodiments of the present utility model, rather than all the embodiments. All other embodiments obtained by those of ordinary skill in the art based on the embodiments of the present utility model without creative efforts shall fall within the protection scope of the present utility model.

Claims

1. An easily breakable extrusion-type composite film bag, characterized in that, Comprising: A negative film, on which a first bending portion and a second bending portion are provided, and an opening line is provided between the first bending portion and the second bending portion; A composite film body, which is hot-pressed on the negative film and forms an accommodating space with the negative film; A support portion, which is provided at the opening line, and the first bending portion is flipped and folded relative to the second bending portion, and an extrusion force is applied to the support portion to open the opening line.

2. The easy-to-break extrusion-type composite film bag according to claim 1, wherein The support portion includes a first convex portion and a third convex portion, and the first convex portion and the third convex portion are connected to form the support portion.

3. The easy-to-break and squeeze composite film bag according to claim 2, wherein The first convex portion and the third convex portion are symmetrically arranged on the negative film and form a support portion with an isosceles triangle cross-section.

4. A breakable extrusion-type composite film bag according to claim 2 or 3, characterized in that, The hypotenuse of the support portion forms a first inclination angle with the negative film.

5. A breakable extrusion-type composite film bag according to claim 1, wherein The support portion includes a second convex portion and a fourth convex portion, and the second convex portion and the fourth convex portion are connected by an inclined surface to form the support portion.

6. The easy-to-break squeeze-type composite film bag according to claim 5, characterized in that, The second convex portion and the fourth convex portion are symmetrically arranged on the negative film through two inclined surfaces and form a support portion with an M-shaped cross-section.

7. An easily breakable extrusion-type composite film bag according to claim 5 or 6, characterized in that, The inclined surface forms a second inclination angle with the negative film.

8. The easy-to-break extrusion composite film bag according to claim 1, characterized in that A sealing portion is provided on the negative film, and a sealing portion is provided in a circle around the periphery of the composite film body.

9. The easy-to-break extrusion composite film bag according to claim 1, characterized in that, The support portion is an integrally formed support structure.

10. A breakable extrusion composite film bag according to claim 4, characterized in that, The inclination angle range of the first inclination angle is 45-90°.

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