JP3010367U - Sealed bag - Google Patents

Abstract

(57) [Summary] (Corrected) [Purpose] To provide a sealed bag that can be torn without causing cracking or damage of the contents and from which the contents can be easily taken. [Structure] A rectangular laminated film having a heat-fusible resin film on the sealing surface side is made into a cylindrical body 13 by a back attaching portion 12, and the back attaching portion 12 is bent so as to abut the surface of the cylindrical body 13, And the opening 2 at one end of the cylindrical body 13
1 is heat-sealed to form band-shaped heat-sealed portions 15 and 16,
In the sealing bag 11 having a structure in which the contents are stored and the other end opening 21 is heat-sealed to form the band-shaped heat-sealing portions 15 and 16, the V-shaped cut portion 17 is formed by bending the spine sticking portion 12. The strip-shaped heat-sealing portions 15 and 16 are notched diagonally and the strip-shaped heat-sealing portion 1
V and V of the V-shaped cut portion 17 are formed by making diagonal cuts at the non-back-attached portions 5 and 16.
It is characterized in that the valley is located on the heat seal line 14 of the spine sticking portion 12.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 The present invention relates to a sealed bag for storing snacks (contents) such as wafers and chocolate.

[0002]

[Prior art]

 Snacks such as wafers are sold individually and individually packaged in a composite or laminated packaging material based on an organic resin film and sold in a hermetically sealed form. Such sealed bags require that the contents be easily removed after tearing.

By the way, as a sealed bag for storing snacks such as wafers, one having a structure shown in FIG. 7 has been conventionally known. The sealing bag 1 is made of a rectangular laminated film (for example, a three-layer laminated film of polypropylene film / aluminum foil / polypropylene film) having a heat-fusible resin film on the sealing surface side. The back attaching portion 2 is formed by bringing polyethylene films at both ends of the laminated film into contact with each other and heat-sealing, and the back attaching portion 2 forms the cylindrical body 3. The back attachment part 2 is bent so as to contact the surface of the cylindrical body 3. The band-shaped heat-sealing portions 4a and 4b are formed by heat-sealing the openings at both ends of the cylindrical body 3. The corrugated notches 5a and 5b are formed at the ends of the band-shaped heat seal portions 4a and 4b, respectively. The contents, for example, the wafer 6 are stored in the cylindrical body 3 of the sealed bag 1.

To open the sealed bag 1 having such a structure, as shown in FIG. 8, the left hand (not shown) grasps the central portion of one of the band-shaped heat seal portions (for example, 4b) and the right hand (not shown). Grab the end of the band-shaped heat-sealing part 4b with, and tear the right hand with the corrugated notch 5b as the starting point along the length direction of the back attaching part 2 toward the front side and tear the end part of the sealing bag 1. Done by. However, as shown in FIG. 8, when tearing the end side of the sealing bag 1, the tear piece 7 is disturbed by the wafer 6 which is the content and is torn in the middle along the length direction of the spine sticking portion 2. Therefore, the wafer 6 cannot be easily taken out. At the time of unsealing, even if an attempt is made to tear the corrugated notch 5b at the center of one of the band-shaped heat-sealing portions 4b as a starting point for tearing, the end surface of the wafer 6 as the content interferes and tries to force tearing. There is a problem that the wafer 6 is broken.

[0005]

[Problems to be solved by the device]

 An object of the present invention is to provide a hermetically sealed bag capable of tearing contents such as wafers and chocolates without cracking or damaging the contents and easily removing the contents after tearing. To do.

[0006]

[Means for Solving the Problems]

 In the hermetically sealed bag according to the present invention, a rectangular laminated film having a heat-fusible resin film on the sealing surface side is formed into a tubular body by a back stick portion, and the back stick portion is bent so as to abut on the surface of the cylinder body. A sealed bag having a structure in which one end opening of the cylindrical body is heat-sealed to form a band-shaped heat seal part, the contents are stored, and the other end opening is heat-sealed to form a band-shaped heat seal part. In the V-shaped cut portion, a diagonal cut is made at a portion of the one band-shaped heat-sealing portion where the back-adhesive portion is bent and a diagonal cut is made at a portion of the non-back-adhered portion of the band-shaped heat-sealing portion. And the V-shaped valley of the V-shaped cut portion is located on the heat-sealing line of the spine pasting portion.

In another hermetically sealed bag according to the present invention, a laminated film having a heat-fusible resin film on the sealing surface side is made into a cylinder by a back sticking part, and the back sticking part is brought into contact with the surface of the cylinder. Sealing of the structure in which one end opening of the cylindrical body is heat-sealed to form a band-shaped heat-sealing part, the contents are stored and the other end opening is heat-sealed to form a band-shaped heat-sealing part. In the bag, an oblique cut line is provided at a position of the one band-shaped heat seal portion where the back sticking portion is bent so that a tip end is located on the heat seal line of the back sticking portion. It is a thing.

In still another hermetically sealed bag according to the present invention, a laminated film having a heat-fusible resin film on the sealing surface side is made into a tubular body by a back attaching portion, and the back attaching portion is provided on the surface of the tubular body. It is bent so that it abuts, and the one end opening of the cylindrical body is heat-sealed so that the end side remains as a band-shaped unsealed part, the contents are stored, and the other end opening is opened with the band-shaped unsealed part. In a hermetically sealed bag that is heat-sealed so as to remain as a sealing portion, the V-shaped cut portion has a diagonal notch at the one strip-shaped unsealed portion where the spine sticking portion is bent and the strip-shaped unsealed portion. Of the V-shaped cut portion is formed by making an oblique cut at the non-back-bonded portion of the back-bonded portion, and the V-shaped valley of the V-shaped cut portion is located on the band-shaped unsealed portion on the heat-sealing line of the back-bonded portion. Tosu It is something.

Examples of the heat-fusible resin film used in each of the hermetically sealed bags according to the present invention include a polyethylene film such as a low density polyethylene film and a linear low density polyethylene film, an ethyl vinyl acetate copolymer (EVA). ) A film or an unstretched polypropylene film can be used.

The laminated film used in each of the sealed bags according to the present invention is, for example, a two-layer film of the heat fusible resin and a uniaxially stretched polypropylene film, the heat fusible resin, an aluminum foil and a uniaxially stretched polypropylene film. Examples thereof include a three-layer film with a film.

[0011]

[Action]

 In the hermetically sealed bag according to the present invention, a rectangular laminated film having a heat-fusible resin film on the sealing surface side is formed into a tubular body by a back stick portion, and the back stick portion is bent so as to abut on the surface of the cylinder body. In addition, the one end opening of the cylindrical body is heat-sealed to form a band-shaped heat seal part, the contents are accommodated and the other end opening is heat-sealed to form a band-shaped heat seal part, and the back-stick A V-shaped cut portion is formed by making an oblique notch at one of the band-shaped heat-sealing parts where the part is bent and making an oblique notch at the non-back-adhering part of the band-like heat-sealing part. Moreover, the V-shaped valley of the V-shaped cut portion is located on the heat-sealing line of the spine-attached portion. In the sealed bag having such a structure, when the back sticking portion end where the V-shaped cut portion is formed is pinched with a finger and pulled along the length direction of the back sticking portion, the V-shaped cut portion has a V shape. The valley becomes the starting point of tearing and is torn along the heat seal line of the spine sticking portion. As a result, the tear piece reaches the vicinity of the strip-shaped heat-sealed portion on the opposite side of the strip-shaped heat-sealed portion where the V-shaped cut portion is formed without being interrupted by the contents and is not cut in the middle, and the length of the tubular body is increased. Since the entire direction is opened, the contents stored in the sealed bag can be taken out very easily. Further, since the hermetically sealed bag is torn along the heat seal line of the spine sticking portion when the bag is opened, it is possible to prevent the contents from being cracked or damaged.

In another sealed bag according to the present invention, a rectangular laminated film having a heat-fusible resin film on the sealing surface side is made into a tubular body by a back-adhering portion, and the back-adhering portion is provided on the surface of the tubular body. Bending so as to abut, and heat-sealing one end opening of the cylindrical body to form a band-shaped heat-sealing portion, storing contents and heat-sealing the other end opening to form a band-shaped heat-sealing portion, A structure is provided in which a diagonal cut line is provided at a position of the one band-shaped heat seal portion where the back sticking portion is bent so that a tip end is located on the heat seal line of the back sticking portion. In a sealed bag having such a structure, when the back sticking portion end where the score line is formed is pinched with a finger and pulled along the length direction of the back sticking portion, the tip of the score line becomes the tear starting point. And is torn along the heat-sealing line of the spine sticking portion. As a result, the tear piece reaches the vicinity of the strip-shaped heat-sealed portion on the opposite side to the strip-shaped heat-sealed portion where the score line is formed without being interrupted by the contents and is not broken in the middle, and the longitudinal direction of the tubular body. Since the whole is opened, the contents stored in the sealed bag can be taken out very easily. Further, since the hermetically sealed bag is torn along the heat seal line of the spine sticking portion when the bag is opened, it is possible to prevent the contents from being cracked or damaged.

In still another hermetically sealed bag according to the present invention, a laminated film having a heat-fusible resin film on the sealing surface side is made into a tubular body by a back attaching portion, and the back attaching portion is provided on the surface of the tubular body. It is bent so that it abuts, and the one end opening of the cylindrical body is heat-sealed so that the end side remains as a band-shaped unsealed part, the contents are stored, and the other end opening is opened with the band-shaped unsealed part. Heat-seal so that it remains as a seal part, and make a notch diagonally in the part of the one strip unsealed part where the back pasting part is bent and at the same time diagonally to the part of the non-back pasting part of the strip unsealed part. A V-shaped cut portion is formed by making a notch, and the V-shaped valley of the V-shaped cut portion is located at the band-shaped unsealed portion on the heat-sealing line of the spine-attached portion. In the sealed bag having such a structure, by pinching the end of the back sticking portion where the V-shaped cut portion is formed with a finger and pulling along the length direction of the back sticking portion, the V-shaped cut portion V Tatani becomes the starting point for tearing and tears along the heat-sealing line of the spine sticking portion. As a result, the tear piece reaches the vicinity of the heat-sealed portion on the side opposite to the strip-shaped unsealed portion where the V-shaped cut portion is formed without being broken by the contents, and the longitudinal direction of the tubular body. Since the whole is opened, the contents stored in the sealed bag can be taken out very easily. Further, since the hermetically sealed bag is torn along the heat sealing line of the spine sticking portion when the bag is opened, it is possible to prevent the contents from being cracked or damaged.

[0014]

【Example】

 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. Embodiment 1 FIG. 1 is a perspective view showing a hermetically sealed bag according to Embodiment 1 of the present invention, and FIG. 2 is an enlarged perspective view of an essential part of FIG. The sealing bag 11 is made of a rectangular laminated film (for example, a three-layer laminated film of polypropylene film / aluminum foil / polypropylene film) having a heat-fusible resin film on the sealing surface side. The back attaching portion 12 is formed by bringing the polyethylene films at both ends of the laminated film into contact with each other and heat-sealing, and the back attaching portion 12 forms a cylindrical body 13. Reference numeral 14 in the figure denotes a heat seal wire formed at the boundary between the back sticking portion 12 and the cylindrical body 13. The back sticking portion 12 is bent with the heat seal wire 14 as a boundary so as to come into contact with the surface of the cylindrical body 13. The band-shaped heat-sealing portions 15 and 16 are formed by heat-sealing the openings at both ends of the cylindrical body 13. However, since non-heat-bonding polypropylene films are arranged on both sides of the back-adhesive portion 12, the back-adhesive portion 12 bent in the band-shaped heat-sealing portions 15 and 16 is heated to the cylindrical body 13 by heat. It is not fused and can be easily erected vertically with respect to the surface of the cylindrical body 13 with a finger. The V-shaped cut portion 17 has a diagonal notch formed at a portion of the one band-shaped heat seal portion (for example, 15) where the back adhesive portion 12 is bent, and the non-back-adhered portion of the band-shaped heat seal portion 15 is formed. The V-shaped valley 18 of the V-shaped cut portion 17 is located on the heat-sealing line 14 of the spine-bonded portion 12. The contents, for example, the wafer 19 are stored in the cylindrical body 13 of the sealed bag 11 described above.

According to such a configuration, as shown in FIG. 3, the V-shaped cut portion 17 is formed by pressing the left and right band-shaped heat seal portions 15 of the V-shaped cut portion 17 with, for example, the finger of the left hand. When the end 12a of the back sticking portion 12 thus cut is pinched with a finger of the right hand and made to stand up and pulled along the length direction of the back sticking portion 12, the V-shaped valley 18 of the V-shaped cut portion 17 becomes the starting point of tearing. Then, it is torn along the heat seal line 14 of the spine sticking portion 12. The tear piece 20 formed by pinching and pulling with the finger of the right hand is not disturbed by the wafer 19 as shown in FIG. Reaching the vicinity of the band-shaped heat seal portion 16 on the opposite side of the seal portion 15, an opening portion 21 is formed in the entire longitudinal direction of the cylindrical body 13. Therefore, the wafer 19 stored in the sealed bag 11 can be taken out from the opening 21 very easily.

Further, since the hermetically sealed bag 11 is torn along the heat seal line 14 of the spine sticking portion 12 at the time of opening, that is, torn along the surface of the wafer 19, the wafer 19 is cracked, It can be prevented from being damaged.

Second Embodiment FIG. 5 is an enlarged perspective view of a main part of a sealing bag according to a second embodiment of the present invention. The same members as those in FIG. 1 described above are designated by the same reference numerals and the description thereof will be omitted.

In the hermetically sealed bag 11 according to the second embodiment, an oblique cut line 22 is provided at a portion of one band-shaped heat seal portion (for example, 15) in which the spine-attached portion 12 is bent, and the tip 22a has heat of the spine-attached portion 12. It is provided so as to be located on the seal line 14.

According to such a configuration, when the end 12 a of the spine sticking portion 12 on which the cut line 22 is formed is pinched with a finger and pulled along the length direction of the spine sticking portion 12, the cut The tip 22a of the lead wire 22 serves as a tearing starting point, and is torn along the heat seal wire 14 of the spine sticking portion 12. The tear piece (not shown) formed by pinching and pulling with a finger is not disturbed by the wafer (not shown) housed in the same manner as in FIG. It reaches the vicinity of the strip-shaped heat-sealing portion on the opposite side of the strip-shaped heat-sealing portion 15 in which 22 is formed, and an opening is formed in the entire longitudinal direction of the cylinder 13. Therefore, the wafer stored in the hermetically sealed bag 11 can be taken out from the opening very easily, and the wafer can be prevented from being cracked or damaged.

Third Embodiment FIG. 6 is an enlarged perspective view of a main part of a sealing bag according to a third embodiment of the present invention. The same members as those in FIG. 1 described above are designated by the same reference numerals and the description thereof will be omitted.

The hermetically sealed bag 11 in the third embodiment is heat-sealed in the opening portions at both ends of the tubular body 13 so that the end portions thereof are left as strip-shaped unsealed portions 23. The V-shaped cut portion 24 is formed by obliquely making a notch at one of the strip-shaped unsealed portions 23 where the spine-attached portion 12 is bent and obliquely forming a non-back-attached portion of the strip-shaped unsealed portion 23. The V-shaped valley 25 of the V-shaped cut portion 24, which is formed by making a cut, is located on the heat seal line 14 of the spine sticking portion 12. Incidentally, reference numeral 26 in the figure is a band-shaped heat-sealed portion.

According to such a configuration, when the end 12a of the back attaching portion 12 on which the V-shaped cut portion 24 is formed is pinched with a finger and pulled along the length direction of the back attaching portion 12, The V-shaped valley 25 of the V-shaped cut portion 24 serves as a tear starting point and is torn along the heat seal line 14 of the spine sticking portion 12. The tear piece (not shown) formed by pinching and pulling with a finger is not disturbed by the wafer (not shown) housed in the same manner as in FIG. The strip-shaped unsealed portion 23 in which the cut portion 24 is formed reaches the vicinity of the strip-shaped heat-sealed portion on the opposite side, and an opening is formed in the entire longitudinal direction of the cylindrical body 13. Therefore, the wafer housed in the sealed bag 11 can be taken out from the opening portion very easily, and the wafer can be prevented from being cracked or damaged.

Although wafers are used as the contents in the above embodiments, snacks such as rectangular chocolates or potato chips may be stored as the contents. Further, in the sealed bag having the structure in which the strip-shaped unsealed portion is left at the ends of the opening portions at both ends of the tubular body as in the third embodiment, the V-shaped cut portion is formed on the strip-shaped heat-sealed portion. You may form so that it may extend even to the heat-sealing line of a back stick part. According to this structure, since the V-shaped valley of the V-shaped cut portion is located on the band-shaped heat seal portion, the V-shaped valley is more likely to act as a tear starting point than the structure of the third embodiment. As a result, it is possible to easily tear the sealed bag.

[0024]

[Effect of device]

 As described above in detail, according to the present invention, a seal capable of tearing the contents such as wafers and chocolate without causing cracks or damages, and easily removing the contents after tearing. You can provide a bag.

[Brief description of drawings]

FIG. 1 is a perspective view showing a sealed bag according to a first embodiment of the present invention.

FIG. 2 is an enlarged perspective view of a main part of the sealed bag shown in FIG.

FIG. 3 is a perspective view showing the initial state of opening the hermetically sealed bag according to the first embodiment.

FIG. 4 is a perspective view showing a state after the sealed bag according to the first embodiment is opened.

FIG. 5 is an enlarged perspective view of a main part showing a hermetically sealed bag according to a second embodiment of the present invention.

FIG. 6 is an enlarged perspective view of essential parts showing a sealed bag according to a third embodiment of the present invention.

FIG. 7 is a perspective view showing a conventional sealed bag.

8 is a perspective view for explaining a problem when the sealing bag of FIG. 7 is opened.

[Explanation of symbols]

11 ... Sealing bag, 12 ... Back sticking part, 13 ... Cylindrical body, 14 ... Heat seal wire, 15, 16, 26 ... Band heat seal part, 17,
24 ... V-shaped cut portion, 18, 25 ... V-shaped valley, 20 ... Tear piece, 21 ... Opening portion, 22 ... Cut line.

Claims (3)

[Scope of utility model registration request] 1. A rectangular laminated film having a heat-fusible resin film on the sealing surface side is made into a tubular body by a back-adhesive portion, and the back-adhesive portion is bent so as to abut the surface of the tubular body, and A V-shaped cut in a sealed bag having a structure in which one end opening of the tubular body is heat-sealed to form a band-shaped heat-sealing part, the contents are stored, and the other end opening is heat-sealed to form a band-shaped heat-sealing part. The portion is formed by obliquely making a cut at the location of the one band-shaped heat-sealing portion in which the spine-pasted portion is bent and at a position of the non-back-adhesive portion of the strip-shaped heat-sealing portion, The V-shaped valley of the V-shaped cut portion is located on the heat-sealing line of the spine-attached portion. 2. A laminated film having a heat-fusible resin film on the sealing surface side is made into a tubular body by a back-adhesive portion, and the back-adhesive portion is bent so as to abut the surface of the tubular body,
And a sealed bag having a structure in which one end opening of the tubular body is heat-sealed to form a band-shaped heat-sealed part, the contents are stored, and the other end opening is heat-sealed to form a band-shaped heat-sealed part. A hermetically sealed bag, characterized in that an oblique cut line is provided at a position of the one band-shaped heat seal portion where the back sticking portion is bent so that a tip thereof is located on the heat seal line of the back sticking portion. 3. A laminated film having a heat-fusible resin film on the sealing surface side is formed into a tubular body by a back-adhering portion, and the back-adhering portion is bent so as to abut the surface of the tubular body,
Also, the one end opening of the tubular body is heat-sealed so that the end side thereof remains as a strip-shaped unsealed portion, the contents are stored, and the other end opening portion is left so that the end side thereof remains as a strip-shaped unsealed portion. In the hermetically sealed bag having a heat-sealed structure, the V-shaped cut portion is diagonally cut at a position of the one strip-shaped unsealed portion where the spine-attached portion is bent, and the non-back-attached portion of the strip-shaped unsealed portion is formed. A hermetically sealed bag, which is formed by making a diagonal cut, and wherein the V-shaped valley of the V-shaped cut portion is located in the band-shaped unsealed portion on the heat-sealing line of the spine-attached portion.