Partial easy peel pouch and its manufacturing method

Abstract

To provide a partial easy peel pouch, and more specifically, a packaging pouch in which an easy peel film is attached only on a portion to be opened.SOLUTION: A partial easy peel pouch comprises: seal parts provided at left and right edges of front and rear face films; an opening part provided at an upper part of the front and rear face films with a fixed area; easy peel films heat-bonded to inside surfaces of the front and rear face films of the opening part; and package-opening pinching portions provided at both corners or a top edge of the opening part.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present invention relates to a partial easy-peel pouch, and more specifically to a packaging pouch in which an easy-peel film is attached only to the area to be opened, and a method for producing the same. [Background technology]

[0002] Generally, a packaging pouch is formed by sealing three sides of a front film and a rear film to form a bag shape, and after the product is placed inside, the top is sealed and the pouch is cut using a notch formed on one side of the top or with scissors.

[0003] In the case of pouches with notches, the thicker the film, the more force is required to open them using the notch, and there are problems with slipping and difficulty in opening if your hands are wet or oily. Also, in the case of pouches containing liquid, the contents may spill or splash around.

[0004] In addition, when cutting open a notched pouch, the cut surface is irregular, making it difficult to remove the contents. Furthermore, the wrapper is separated into two pieces when cut, so users have to discard the cut portion once after opening, and then discard the remaining wrapper again (twice in total) after using up the product, which is inconvenient.

[0005] Furthermore, in the case of 3-side zipper seal & zip products, when the opening section is cut, the part directly above the zipper is cut, so when opening the zipper, there is insufficient gripping area, making it difficult to open, or the zipper may be damaged or peeled off.

[0006] To solve this problem, packaging pouches using easy-peel films (hereinafter referred to as "easy-peel pouches") have been developed. These easy-peel pouches maintain an appropriate thermal adhesive strength that allows them to be opened by hand, and can simultaneously provide protection for the packaged product and convenient opening.

[0007] However, as shown in Figure 1, conventional easy-peel pouches have easy-peel films attached to the top, bottom, left, and right sides of the front and back films, which increases production costs and creates problems such as the pouch breaking under impact loads due to weak thermal adhesive strength in the case of heavy products.

[0008] Meanwhile, technology related to easy-peel pouches is registered in the Republic of Korea under Patent No. 10-1194780 (October 19, 2012). Summary of the Invention [Problem to be solved by the invention]

[0009] The present invention has been made to solve the above problems, and aims to provide an easy-peel pouch that is more economical and convenient by including an easy-peel film only in the area that needs to be opened. [Means for solving the problem]

[0010] According to an embodiment of the present invention, the packaging includes a seal portion provided at the left and right ends of the front and rear films, a tear portion provided with a certain area on the top of the front and rear films, an easy-peel film heat-bonded to the inner surface of the front and rear films at the tear portion, and a tear tab provided at both corners or the top end of the tear portion. [Effects of the Invention]

[0011] The partial easy-peel pouch of the present invention can reduce production costs by thermally attaching an easy-peel film only to the area that needs to be opened. It also prevents tearing due to the impact load of the product when packaging the product, eliminates the risk of moisture escaping when opening a moist product, and is convenient because it can be disposed of only once after use.

[0012] In addition, because the easy-peel pouch is opened by gripping the opening at the top, the shape of the wrapper remains intact, making it convenient to reseal in a bundled state. In the case of easy-peel pouches equipped with zippers, the gripping area is large enough to make opening and closing the zipper easy, reducing the risk of damage to the zipper or the contents.

[0013] In addition, various types of opening portions are provided so that the user can conveniently open the pouch, allowing the user to easily open the pouch. [Brief explanation of the drawings]

[0014] [Figure 1] FIG. 1 shows a conventional easy-peel pouch. [Figure 2] FIG. 1 is a diagram illustrating the concept of the easy-peel pouch of the present invention. [Figure 3] FIG. 1 shows the composition of an easy-peel film of the present invention. [Figure 4] FIG. 1 is a diagram showing an easy-peel pouch to which the easy-peel film of the present invention is applied. [Figure 5] 1A-1D illustrate various embodiments of the easy-peel pouch of the present invention. DETAILED DESCRIPTION OF THE INVENTION

[0015] FIG. 1 is a diagram showing a conventional easy-peel pouch, FIG. 2 is a diagram explaining the concept of the easy-peel pouch of the present invention, FIG. 3 is a diagram showing the composition of the easy-peel pouch of the present invention, FIG. 4 is a diagram showing an easy-peel pouch to which the easy-peel film of the present invention is applied, and FIG. 5 is a diagram showing various embodiments of the easy-peel pouch of the present invention.

[0016] The configuration of the partial easy-peel pouch 100 according to a preferred embodiment of the present invention will now be described with reference to FIGS.

[0017] The partial easy peel pouch 100 of the present invention is a packaging pouch in which an easy peel film 130 is attached only to the area to be opened. As shown in FIG. 2, the pouch includes seal portions 140 provided at the left and right ends of front and rear films 110 and 120, a tearing portion 100b provided with a certain area on the top of the front and rear films 110 and 120, an easy peel film 130 heat-bonded to the inner surface of the front and rear films 110 and 120 of the tearing portion 100b, and a tearing tab 100a provided at both corners or the top end of the tearing portion 100b.

[0018] Also, a zipper 150 may be provided at the bottom of the easy-peel film 130. In this case, there is no need to cut off the top portion of the zipper as in the conventional method, and a sufficiently wide opening tab is formed. Therefore, the user can conveniently open and close the zipper 150 by grasping the opening tab 100a, which is large enough, and there is no risk of damaging the zipper 150 or the contents.

[0019] As described above, the easy-peel pouch 100 of the present invention has the easy-peel film 130 attached only to the area that needs to be opened, thereby reducing production costs and preventing the pouch from being torn by the impact load of the product when it is packaged. Furthermore, since the pouch is easy to open, there is no risk of moisture escaping when opening a product that contains moisture, and it is convenient because it only needs to be disposed of once after using the product.

[0020] In addition, the easy-peel pouch 100 is opened by gripping the opening tab 100a at the top, so the shape of the wrapper remains intact, making it convenient to reseal the pouch in a bundled state. In the case of an easy-peel pouch equipped with a zipper, the gripping area is large enough to easily open and close the zipper, reducing the risk of damage to the zipper or contents.

[0021] Additionally, the easy-peel pouch 100 can be provided in a suitable shape depending on the application, such as a three-side seal pouch, a three-side seal-zipper pouch, or a stand-up pouch. In addition to the shape, the easy-peel pouch 100 can also be provided with additional functions such as a micro-pore airflow system or a completely insect-proof airflow system.

[0022] On the other hand, FIG. 3 is a diagram showing the composition of an easy-peel film 130 of the present invention.

[0023] As shown in FIG. 3, the easy-peel film 130 of the present invention includes an easy-peel layer (EPL film layer) 130c, a strength reinforcing layer 130b provided on the outer surface of the easy-peel layer 130c, and a sealing layer 130a provided on the outer surface of the strength reinforcing layer 130b.

[0024] The easy peel layer 130c may be an easy peelable film (EPL film). The principle of easy peel is to adjust the thermal adhesive strength by mixing a special resin to make it easy to open, and for this purpose, the thermal adhesive strength can be controlled by micro-dispersing an incompatible resin in a compatible resin.

[0025] The strength reinforcing layer 130b is a layer for reinforcing the easy-peel film 130 against stretching due to tension during the bag-making process, and may be made of one of polyamide (NY: nylon), polyethylene terephthalate (PET), and oriented polypropylene (OPP). The strength reinforcing layer 130b is a film layer that has already been stretched and cannot be stretched any further.

[0026] Furthermore, the sealing layer 130a is a layer for completely adhering to one side of the front or rear film 110, 120, and may be a polyethylene (PE) film, a polypropylene (PP) film, or a polyethylene (PE) coating layer. Specifically, it may be an L-LDPE (Linear Low Density Polyethylene) film layer, an LDPE (Low Density Polyethylene) coating layer, or a PP (polypropylene) film layer.

[0027] The easy-peel film 130, which includes the easy-peel layer 130c, the strength-reinforcing layer 130b, and the sealing layer 130a, can be made into a tape shape. The width and thickness can be adjusted to suit the shape of the opening portion 100b of the easy-peel pouch 100, while maintaining peel strength sufficient to protect the contents from damage.

[0028] FIG. 4 is a diagram showing an easy-peel pouch 100 to which the easy-peel film 130 of the present invention is applied.

[0029] In the easy-peel pouch 100 of the present invention, the easy-peel film 130 may be adhered to the inner surface of one of the facing front and rear films 110, 120, or the easy-peel film 130 may be adhered to the inner surfaces of both the front and rear films 110, 120.

[0030] The left and right sides of the front film (110) and the rear film (120) are sealed by the seal portion (140), and after the front film (110) and the rear film (120) are bonded together by the easy-peel film strip, the ends of the front film (110) and the rear film (120) form the opening tab (100a). That is, the opening tab (100a) is composed of a front tab and a rear tab. Specifically, the front tab is formed by the end of the front film (110), and the rear tab is formed by the end of the rear film (120).

[0031] When the user grasps the opening tab 100a of the easy-peel pouch 100 bonded in this manner and opens it to both sides, the easy-peel layer 130a of the easy-peel film 130 is peeled off, and only the opening portion 100b is opened.

[0032] 5(a) to 5(c) are diagrams showing various shapes of the opening portion 100b of the partial easy-peel pouch 100 according to an embodiment of the present invention.

[0033] As shown in FIG. 5(a), the easy-peel pouch 100 according to an embodiment of the present invention has a front film 110 and a rear film 120 sealed at the left and right sides by a sealing portion 140, and an easy-peel film 130 with rounded corners attached to an upper opening portion 100b through which a product can be packaged or removed. As a result, the corners of the front and rear films 110 and 120 peel off naturally, forming opening tabs 100a at both corners of the opening portion 100b.

[0034] At this time, as shown in FIG. 5(a), a corner of the front tab 110a of the opening tab 100a may be cut off to form a triangular lip-shaped rear tab 120a.

[0035] In another embodiment of the present invention, as shown in Figure 5(b), the rear tab 120a may be formed higher (approximately 10-15 mm higher) than the front tab 110a. This allows the rear tab 120a to function as a lip, allowing the user to grasp the lip wide enough to open the pouch. The heights of the rear tab 120a and the front tab 110a may also be configured to be different. Alternatively, the sizes of the rear tab 120a and the front tab 110a may be configured to be different.

[0036] 5(c) is a diagram showing yet another shape of opening tab 100a according to another embodiment of the present invention. The width of opening tab 100a in FIG. 5(c) is narrower than the width of pouch 100. Also, rear tab 120a is formed higher (about 1-3 mm higher) than front tab 110a, so that rear tab 120a functions as a lip. A user can open easy-peel pouch 100 by grasping and spreading front and rear tabs 110a and 120a with both hands.

[0037] The easy-peel pouch 100 is opened by grasping the opening tab 100a, so the shape of the wrapper is maintained. The structure makes it easy to reseal the packaged product, and the opening tab 100a is wide enough for the user to grasp, which has the advantages of reducing contamination of the packaged product and increasing its shelf life.

[0038] The easy-peel pouch 100 of the present invention can be used for a variety of products, including refrigerated foods (sausages, crab sticks, dairy products such as butter and margarine), frozen foods, dessert foods (jelly, creamer, yogurt, jam, etc.), and sweets (chocolate, ice cream, sandwiches, yokan, etc.).

[0039] The steps for manufacturing the partial easy-peel pouch according to the present invention described above will now be described. First, the left and right edges of the front and rear films are sealed. This step is called the "sealing step (S1)." An easy-peel film is taped to the inner surface of the film after the sealing step, and heat is applied to form a pouch. This step is called the "pouch processing step (S2)." In the pouch processing step (S2), when taping the easy-peel film to the inner surface of the film after the sealing step, the easy-peel film can be taped at a predetermined interval above the film after the sealing step. Then, after the pouch processing step (S2), an opening tab is formed at both corners or at the top of the film. This step is called the "opening tab cutting step (S3)." In the "opening tab cutting step (S3)," the opening tab can be cut into a shape suitable for a tab, such as a rectangle, a rectangle with rounded corners, a triangle, a circle, or an oval.

[0040] The present invention described above with reference to the accompanying drawings can be modified and changed in various ways by those skilled in the art, and such modifications and changes not limited by the claims should be interpreted as falling within the scope of the present invention. [Explanation of symbols]

[0041] 100: Easy-peel pouch 100a: Opened and picked 100b: Opening section 110: Front film 110a: Front knob 120: Rear film 120a: Rear pick 130: Easy peel film 130a: sealing layer 130b: Strengthening layer 130c: Easy Peel layer 140: Seal part 150: Zipper

Claims

1. Seal portions (140) provided at the left and right ends of the front and rear films; a tearing portion (100b) provided on the upper portion of the front and rear films with a certain area; an easy-peel film (130) that is thermally bonded to the inner surface of the front and rear films of the tear-open portion; An opening tab (100a) provided at both corners or the upper end of the opening part; A partial easy-peel pouch (100) comprising:

2. The shape of the partial easy-peel pouch (100) is:

10. The partial easy-peel pouch (100) of claim 1, wherein the pouch is one of a three-side seal pouch, a three-side seal-zipper pouch, and a stand-up pouch.

3. The easy peel film (130) is an easy peel layer (EPL film layer) (130c); a strength reinforcing layer (130b) provided on the outer surface of the easy-peel layer; 2. The partial easy-peel pouch (100) of claim 1, further comprising a sealing layer (130a) provided on the outer surface of the strength reinforcing layer.

4. the strength reinforcing layer (130b) is one of polyamide (NY: nylon), polyethylene terephthalate (PET), and oriented polypropylene (OPP); 4. The partial easy-peel pouch (100) of claim 3, wherein the sealing layer (130a) is one of a polyethylene (PE) film, a polypropylene (PP) film, or a polyethylene (PE) coating layer.

5. The partial easy-peel pouch according to claim 1, wherein the opening tab (100a) has front and rear tabs (110a, 120a) that are different in size and / or height from each other.

6. A sealing step (S1) of sealing the left and right ends of the front and rear films; a pouch processing step (S2) in which an easy-peel film is taped to the inner surface of the film after the sealing step and heat is applied; and forming an opening tab at both corners or at the top end of the film and cutting the opening tab (S3).

7. The easy-peel film can be taped at regular intervals on the top of the film, the opening tab is cut into a square, a rounded square, a triangle, a circle, or an oval shape; The method for producing a partial easy-peel pouch according to claim 6, wherein the front tab and the back tab constituting the opening tab are cut so that they have different sizes and / or heights.

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