JP3325747B2 - Packaging bag and sliced cheese package - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a packaging bag and a sliced cheese package which can maintain a bag shape after opening.

[0002]

2. Description of the Related Art A packaging bag made of a plastic laminated film is used to form a three-sided sealed packaging bag that is folded in half and sealed at its ends, or a butt end is formed by bending, and the butt end is heat-sealed. There is a pillow-shaped packaging bag formed with a back seal portion. Packaging bags made of plastic laminate films have high tear strength and are difficult to open by hand.
An opening means such as a shape notch is provided to open from the heat seal portion. Further, in order to improve the tearing direction, a plastic laminate film obtained by laminating a uniaxially stretched film is used, and a heat sealing surface is provided with opening means such as a V-shaped notch or an I-shaped notch. In the sliced cheese package, in order to prevent deterioration of the quality of the enclosed sliced cheese, gas replacement packaging is performed, and a plastic laminate film forming a packaging bag is used which has excellent gas barrier properties. In addition, a heat-sealing strength of the hermetically-sealed portion is large, and it is desired that the hermetically-sealed portion is not easily broken and is tough.

[0003]

In a packaging bag that is opened from the heat-sealed portion by providing an opening means such as a V-shaped notch or an I-shaped notch on the heat-sealing surface, the contents are removed by opening from the heat-sealed portion. Can be obtained, but if both sides of the packaging bag are cut in the longitudinal direction,
Unless a uniaxially stretched directional film plastic laminate film is used, the cutting direction is random, and the bag shape after removing the contents from the packaging bag cannot be maintained. The present invention has been made in view of the above points,
By providing an opening portion near one side edge or one side edge of one side of the packaging bag, a packaging bag and a sliced cheese package that can maintain a bag shape after removing a part of the enclosed contents are provided. The purpose is to provide.

[0004]

According to a first aspect of the present invention, there is provided a packaging bag, wherein a rectangular plastic laminate film is bent and formed so that an abutted end is formed on a back surface, and extends from an upper end to a lower end. In a packaging bag in which the butted ends are heat-sealed to form a back seal portion, the back seal portion is provided at or near the side end of the packaging bag, and a bend connected to each butted end forming the back seal portion The opening is provided with a narrow opening rough surface extending from the upper end to the lower end. The packaging bag according to claim 2 of the present invention comprises:
The packaging bag according to claim 1, wherein the packaging bag is formed of a laminate film obtained by dry laminating a biaxially stretched nylon film coated with vinylidene chloride and a linear low-density polyethylene film. Claim 3 of the present invention
The sliced cheese package according to the above, in a sliced cheese package having a packaging bag having a back seal portion whose ends are joined and joined, and sliced cheese stored in the packaging bag, the back seal portion is a side end of the packaging bag or It is provided in the vicinity of the side end, and an easy-opening portion is provided in the bent portion so as to be continuous with each butted end forming the back seal portion.
The sliced cheese package according to a fourth aspect of the present invention is the sliced cheese package according to the third aspect, wherein the packaging bag is obtained by dry laminating a biaxially stretched nylon film coated with vinylidene chloride and a linear low-density polyethylene film. It is characterized by being formed by. A sliced cheese package according to a fifth aspect of the present invention is the sliced cheese package according to the third aspect, wherein the easy-to-open portion is a narrow-width rough surface portion for opening. Claim 6 of the present invention
The sliced cheese package according to the above, in a sliced cheese package having a packaging bag having a back seal portion whose ends are joined and joined, and sliced cheese stored in the packaging bag, in the vicinity of the side end or the side end of the packaging bag In addition, a narrow opening easy-to-open area extending from the upper end to the lower end is provided in parallel with the back seal part, and a mountain-folded bent portion is formed in the easy-opening area. A sliced cheese package according to a seventh aspect of the present invention is the sliced cheese package according to the sixth aspect, wherein a notch corresponding to an easy opening area is provided in the heat seal portion.

[0005]

In the packaging bag of the present invention, the back seal portion is provided at or near the side end of the packaging bag, and a narrow opening extending from the upper end to the lower end is formed at the bent portion connected to the butted end of the back seal portion. By providing a rough surface for use, a narrow opening is formed at the side end or near the side end of one side of the packaging bag, and it is possible to keep the shape of the bag after taking out part of the enclosed contents To In the sliced cheese package of the present invention, the back seal portion is provided near the side end or the side end of the packaging bag, and a narrow width opening extending from the upper end to the lower end is provided at the bent portion connected to the butted end of the back seal portion. By providing the roughened surface portion, a narrow opening is formed near the side end or the side end of one surface of the packaging bag, and the enclosed sliced cheese can be taken out from the narrowed opening. It is possible to keep the shape of the bag after removal. The sliced cheese package of the present invention is provided with a narrow opening easy-to-open area extending from the upper end to the lower end in parallel with the back seal portion near the side end or the side end of the packaging bag. Forming a bend,
By forming a narrow opening at the side end or near the side end of one side of the packaging bag at the bent portion of this mountain fold, it is possible to maintain the bag shape after taking out a part of the enclosed sliced cheese. enable.

[0006]

BRIEF DESCRIPTION OF THE DRAWINGS FIG.
FIG. 1 shows a state before enclosing the contents of a packaging bag 1 according to the present invention. This packaging bag 1 has a rectangular plastic laminate film 2 with bonding ends 3 and 3 at the back side edges or It is formed by bending and forming in a state where it abuts near the side end, and heat-sealing the joint ends 3 to form a back seal portion 4 extending from the upper end to the lower end. Each butt joint end 3, which forms the back seal portion 4,
As shown in FIG. 2, a narrow opening rough surface portion 5 is provided in the bent portion 3 a continuous with 3. The rough surface portion 5 for opening extends from the upper end to the lower end of the packaging bag 1, and the bent portion 3a is preferably located at the center in the width direction. As shown in FIG. 3, the plastic laminated film 2 comprises a biaxially stretched nylon film 7 having a vinylidene chloride coating layer 6 having a thickness of 10 to 25 microns and a linear low density polyethylene film 8 having a thickness of 20 to 80 microns. Is formed by dry laminating. On a suitable portion on the vinylidene chloride coat layer 6 provided on the biaxially stretched nylon film 7, a predetermined printing surface 9 and an aluminum
Are formed. The printing surface 9 is located between the biaxially stretched nylon film 7 and the linear low density polyethylene film 8. In addition, plastic laminate film 2
The biaxially stretched nylon film is made of nylon and ethylene
It may be a biaxially stretched film of a polyvinyl alcohol copolymer or a biaxially stretched nylon film provided with a metal deposition layer.

Each butt joint end 3 of the packaging bag 1
As shown in FIG. 4, the narrow opening rough surface portion 5 provided in the bent portions 3 a, 3 a continuous with 3 is formed on the opposite side of the vinylidene chloride coat layer 6 of the biaxially stretched nylon film 7 of the plastic laminate film 2. It is formed by pressing an abrasive grain surface (not shown) against the surface. The rough surface portion 5 for opening includes a rough surface portion 13 including a plurality of concave portions 11 and through holes 12 formed by pressing an abrasive grain surface against the surface of the biaxially stretched nylon film 7, and a concave portion 11 of the rough surface portion 13. And a plastic material 14 filled in the through hole 12. This plastic material 14 is used for forming the plastic laminate film 2 when forming the concave portion 11 of the rough surface portion 13.
And the through holes 12 are filled.

The packaging bag 1 thus produced is filled with a flat sliced cheese (not shown).
Are sealed by forming the heat-sealed portions 15 and 15 by ordinary heat-sealing means to form a sliced cheese package. As shown in FIG. 5, the sliced cheese package is in a state where the sliced cheese is completely filled in the accommodation space, and the film portion which is packaged by gas replacement and forms the accommodation space is in a tensioned state in which tension is applied.

In order to open the packaging bag 1 in which the flat sliced cheese is enclosed, the back sealing portion 4 located on the rear end side of the packaging bag 1 is held by hand, and the back sealing portion 4 is
A force is applied in a direction away from the packaging bag 1 indicated by the arrow A. Then, the rough opening portion 5 provided on the bent portions 3 a, 3 a connected to the joint ends 3, 3 of the back seal portion 4 acts as an opening introduction portion, and the back seal portion 4 is connected to each joint end 3. It breaks along the rough surface 5 for opening provided in the bent part 3a. When a further force is applied to the back seal portion 4 in the direction of arrow A, the back seal portion 4 is further broken along the opening rough surface portions 5, 5 to form an opening 16 necessary for taking out the contents. Since opening of the packaging bag 1 does not require a strong force, even a weak person such as a girl or a child can easily perform the opening by hand.

In this manner, the narrow opening 16 formed in the packaging bag 1 in which the sliced cheese is enclosed is located near the rear side edge or the side edge. The packaging bag 1 in which the sliced cheese is sealed is maintained in a predetermined bag shape even after a part of the sliced cheese is taken out without being divided in the longitudinal direction.

FIG. 6 shows another embodiment of the present invention. In this embodiment, a packaging bag 1 'for enclosing sliced cheese is
In the packaging bag 1 having the back seal portion 4 whose ends are butt-joined, a mountain-folded bent portion 20 extending from the upper end to the lower end in parallel with the back seal portion 4 near the side end or the side end of the packaging bag 1 '. Is formed. As shown in FIG. 7, the mountain-folded bent portion 20 is formed by bending a narrow width easy-to-open area 5 ′ formed on the plastic laminate film 2 wound in a roll along the folding lines 21 and 21. It is formed. The rough surface portion for opening in the easy-opening area 5 'has the same configuration as the rough surface portion 5 for opening. The mountain-folded bent portion 20 protruding from one surface of the plastic laminate film 2 has a thin tape shape as a whole. To open the packaging bag 1 ′, the user holds the mountain-folded bent portion 20 provided on the rear end side of the packaging bag 1 ′ by hand, and pulls the bent portion 20. The folding line 21 provided in the easy opening area 5 'functions as an opening introduction part, and the folding part 20
1 to form a narrow opening 22 as shown in FIG. Since the narrow opening 22 formed in the packaging bag 17 is located at the side end or near the side end of the back surface, even after taking out a part of the enclosed sliced cheese, the packaging in which the sliced cheese is enclosed. The bag 1 'is kept in a predetermined bag shape.

[0012]

As described above, according to the present invention, the back seal portion is provided at or near the side end of the packaging bag, and the bent portion connected to each butted end forming the back seal portion is provided. , A narrow opening rough surface portion extending from the upper end to the lower end is provided, so that a narrow opening is formed on one side of the packaging bag or near the side end, and a part of the enclosed contents is taken out. It is possible to keep the shape of the packaging bag even after the packaging. Further, according to the present invention, a narrow opening easy-to-open area extending from the upper end to the lower end in parallel with the back seal portion is provided near the side end or the side end of the packaging bag. By providing the part, a narrow opening is formed in the side end of one side of the packaging bag or in the vicinity of the side end, and the bag shape of the packaging bag is maintained even after taking out a part of the enclosed contents. Enable.

[Brief description of the drawings]

FIG. 1 is a view showing a state before an opening of a packaging bag according to the present invention is heat-sealed.

FIG. 2 is an exploded view showing a back seal portion of the packaging bag according to the present invention.

FIG. 3 is a cross-sectional view of a plastic film of a packaging bag material.

FIG. 4 is a sectional view of a portion of the plastic film provided with a rough opening surface.

FIG. 5 is a view showing an opened state of the packaging bag according to the present invention.

FIG. 6 is a view showing another embodiment of the packaging bag according to the present invention.

FIG. 7 is a view showing a packaging bag material used for the packaging bag of FIG. 6;

FIG. 8 is a view showing an opened state of the packaging bag of FIG. 6;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Packaging bag 2 Plastic laminated film 3 Joining end 3a Bending part 4 Back seal part 5 Opening rough surface part 11 Concave part 12 Through hole 13 Rough surface part 14 Plastic material

────────────────────────────────────────────────── ─── Continued on front page (58) Field surveyed (Int. Cl. ⁷ , DB name) B65D 33/00 B65D 77/30-77/40

Claims (11)

(57) [Claims] 1. A packaging bag in which a rectangular plastic laminated film is bent and formed so that the butted ends are formed on the back surface, and the butted ends extending from the upper end to the lower end are heat-sealed to form a back seal portion. , A back seal portion is provided near the side end or the side end of the packaging bag, and a narrow width opening rough surface portion extending from the upper end to the lower end is provided in a bent portion connected to each butted end forming the back seal portion. A packaging bag, characterized in that: 2. The packaging bag according to claim 1, wherein the packaging bag is formed of a laminate film obtained by dry laminating a biaxially stretched nylon film coated with vinylidene chloride and a linear low-density polyethylene film. 3. The packaging bag according to claim 1, wherein the packaging bag is formed of a laminated film obtained by dry laminating a biaxially stretched nylon film of nylon and an ethylene-polyvinyl alcohol copolymer and a linear low density polyethylene film. Packaging bag. 4. The packaging bag according to claim 1, wherein the packaging bag is formed of a laminated film obtained by dry laminating a biaxially stretched film having a metal deposition layer and a linear low-density polyethylene film. 5. In a sliced cheese package having a packaging bag having a back seal part whose ends are butt-joined and a sliced cheese stored in the packaging bag, the back seal part is attached to the side end or the side end of the packaging bag. A sliced cheese package, which is provided in the vicinity and provided with an easy-opening portion at a bent portion so as to be continuous with each butted end forming the back seal portion. 6. The sliced cheese package according to claim 5, wherein the packaging bag is formed of a laminate film obtained by dry laminating a biaxially stretched nylon film coated with vinylidene chloride and a linear low-density polyethylene film. 7. The packaging bag according to claim 5, wherein the packaging bag is formed by dry laminating a biaxially stretched nylon film of nylon and an ethylene-polyvinyl alcohol copolymer and a linear low density polyethylene film. Sliced cheese package. 8. The sliced cheese package according to claim 5, wherein the packaging bag is formed of a laminated film obtained by dry laminating a biaxially stretched film having a metal deposition layer and a linear low-density polyethylene film. 9. The sliced cheese package according to claim 5, wherein the easy opening portion is a narrow opening rough surface portion. 10. A sliced cheese package having a packaging bag having a back seal portion whose ends are butt-joined and a sliced cheese stored in the packaging bag, wherein a side edge of the packaging bag or a vicinity of the side edge is provided with a spine. A sliced cheese package, wherein a narrow width easy-to-open area extending from an upper end to a lower end is provided in parallel with a seal portion, and a mountain-folded bent portion is formed in the easy-opening area. 11. The packaged sliced cheese according to claim 10, wherein a notch corresponding to the easy opening area is provided in the heat seal portion.