JP2013043656A - Cylindrical sealed package and method for manufacturing the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cylindrical sealed package having a structure for sticking envelopes in which a decrease in manufacture yield of the cylindrical sealed packages for sticking envelopes during a manufacturing step can be prevented and an ear section of a straight part is hardly torn, and a method for manufacturing the same.SOLUTION: The cylindrical sealed package includes a cylindrical body part 2 for sticking envelopes in which one edge out of edges on the right and left sides orthogonal to the longitudinal direction of a film and the other edge are overlapped on each other and then sealed, a content 3 filled in the cylindrical body part 2, and a binding part 4 for sealing the content 3 by binding both ends in the longitudinal direction of the cylindrical body part 2. A non-sealed end of one edge forms an ear part 1, and a means for easy opening is provided on a part which is at least the ear part out of the ear part and the sealed part and is also a part other than curved parts of both ends in the longitudinal direction of the cylindrical body part.

Description

  The present invention relates to an envelope-attached cylindrical sealed package in which flexible foods such as sausages and cheese are packaged, and a method for manufacturing the same.

  DESCRIPTION OF RELATED ART Conventionally, the cylindrical package (henceforth a cylindrical sealed package) which sealed flexible foods (henceforth a flexible food), such as sausage and cheese, is known. This cylindrical sealed package is manufactured by bundling flexible foods or bundling both ends of a filled tube with a metal bundling member or bundling by heat sealing. The production of a cylindrical sealed package uses a heat-shrinkable film as an example, forms a package so as not to cause wrinkles, etc., and heat-shrinks the package during subsequent heat sterilization to hermetically package flexible foods Has been done.

  In order to open such a cylindrical sealed package, it is necessary to apply a knife, knife, or other blade to a film that wraps flexible food, and it is time consuming and time consuming. Often accompanied. For this reason, it has been proposed to provide an easy-opening means in the overlapping portion of the film.

  Various easy-opening means have been studied so far. For example, Patent Literature 1 proposes a tubular sealed package in which an opening ear is formed and a number of fine holes are formed in the ear. Patent Document 2 proposes an envelope-attached tubular sealed package in which film ears are formed and a number of easy-opening means are formed on the ears. Further, in Patent Document 3, the peel strength between the outer layer film and the intermediate layer film is set to be smaller than the peel strength between the inner layer film and the intermediate layer film, and further, an opening means is provided at the overlapping portion of the film. It has been proposed to produce an envelope-attached cylindrical hermetic package using a composite resin film provided with scratches.

JP-A-63-12471 JP-A-6-153773 JP 2002-219777 A

  Numerous fine holes are formed in the ears of the cylindrical sealed packages of Patent Documents 1 to 3 as the easy opening means up to the bundling portions at both ends of the tube. For this reason, the force (pressure, impact force, etc.) applied during the manufacturing process of the cylindrical sealed package filled with flexible food or the ears are hooked, and the film tears at the ears in the curved part near the binding part. It was easy to cause a problem that the flexible food jumped out.

  In particular, in the sealed tubular package with an envelope described in Patent Documents 2 and 3, it was considered to provide a cut line and a pore in the ear portion to open the package more easily. However, the envelope-sealed cylindrical sealed package thus configured was easy to open at the ear, but the strength of the film at the curved portion in the vicinity of the bundling portion was apt to be reduced and apt to tear. .

  The present invention has been made in order to solve the above-described problems, and the object thereof is to tear the curved portion near the binding portion of the envelope-sealed cylindrical sealed package during the manufacturing process, thereby reducing the manufacturing yield. It is providing the cylindrical sealing packaging body of the envelope sticking which has the structure form which can prevent tearing at the seal part of linear parts other than a curved part, and its manufacturing method.

  Another object of the present invention is to provide a tubular sealed package with an envelope and a packaging film used in the manufacturing method thereof.

  In the course of earnestly researching the envelope-sealed tubular sealed package having easy-opening means and the manufacturing method thereof, the longitudinal length of the tubular body portion (hereinafter referred to as the tubular body portion) of the ear portions. Easy-opening means was provided in addition to the curved portion near the binding portion at both ends in the direction. Thus, the inventors have found that the film can be prevented from tearing even when a force is applied to the curved portion during the manufacturing process or when the ear is hooked, and the present invention has been completed.

  In order to solve the above problems, a cylindrical sealed package according to the present invention is an envelope in which one edge and the other edge are overlapped and sealed among right and left edges perpendicular to the longitudinal direction of the film. An affixed cylindrical main body, a content filled in the cylindrical main body, and a bundling portion that seals the content by binding both ends in the longitudinal direction of the cylindrical main body. The unsealed end portion of the one edge portion becomes an ear portion, which is at least the ear portion side portion of the ear portion and the sealed portion, and curved portions at both ends in the longitudinal direction of the cylindrical main body portion. An easy opening means is provided in a portion other than the above.

  According to this invention, at least the ear portion side of the ear portion and the sealed portion of the tubular body portion attached with the envelope, which is easy to be applied to portions other than the curved portions at both ends in the longitudinal direction of the tubular body portion. Since the opening means is provided, it can be easily opened from the ear. On the other hand, since the easy opening means is not provided in the bending part, even if a force is applied to the bending part, the bending part is difficult to tear at the sealing part, and the contents do not jump out. As a result, the yield in the case of manufacturing an envelope-attached cylindrical sealed package having such a structural form is increased, and a reduction in manufacturing cost can be realized.

  In the cylindrical sealed package according to the present invention, the easy-opening means is at least one of a plurality of cut lines or pores formed on at least the ear part side of the ear part and the sealed part, It is preferable that the cut line or the pore is formed in a direction orthogonal to the longitudinal direction of the cylindrical main body.

  According to this invention, the easy-opening means is at least one of a plurality of cut lines or pores formed on at least the ear part side of the ear part and the sealed part, and the cut line or the pore of the cylindrical main body part. Since it is formed in the direction orthogonal to the longitudinal direction, the ear can be easily torn and the cylindrical sealed package can be opened easily and quickly.

  In order to solve the above problems, a method for manufacturing a cylindrical sealed package according to the present invention includes an easy-opening means forming portion and an easy-opening on one of the left and right edges perpendicular to the longitudinal direction of the belt-like film. A step of providing a means non-forming portion, a step of superimposing by sealing an envelope so that a sealed portion other than the end portion of the one edge portion overlaps an end portion of the other edge portion, and sealing the overlapped portion. A step of obtaining a cylindrical main body using the end portion of the one edge as an ear, a step of filling the cylindrical main body with contents, and a longitudinal end of the cylindrical main body Bundling in the easy-opening means non-forming part, and bundling at the other end in the longitudinal direction of the cylindrical main body part in the easy-opening means non-forming part, and the contents in the cylindrical main body part And a step of sealing.

  According to this invention, it has the process of providing an easy-opening means formation part and an easy-opening means non-formation part in one edge part among the edge parts of the right-and-left both sides orthogonal to the longitudinal direction of a strip | belt-shaped film previously, Furthermore, the edge The cylindrical body is obtained by superimposing and sealing the part on the other edge by sealing the envelope to obtain a cylindrical main body, and further binding the cylindrical main body in the longitudinal direction by the non-opening means non-forming part. Manufacturing. Of the ears of the cylindrical main body manufactured in this way, the ears other than the curved portions at both ends in the longitudinal direction of the cylindrical main body are provided with easy-opening means. A cylindrical sealed package that can be opened can be manufactured. On the other hand, since the easy opening means is not provided in the curved part, even if a force is applied to the curved part, the curved sealed part is difficult to tear and the contents do not jump out. Can be manufactured. As a result, the yield at the time of manufacture of the envelope-sealed cylindrical sealed package having such a structural form is increased, and the manufacturing cost can be reduced. Furthermore, even when a force is applied to the curved portion by vibration or impact during transportation of the manufactured sealed tubular package with an envelope, the curved portion is difficult to tear and prevents the contents from popping out. be able to.

  In the method for manufacturing a cylindrical sealed package according to the present invention, the easy-opening means is at least one of a plurality of cut lines or pores formed on at least the ear part side of the ear part and the sealed part. In addition, it is preferable that the cut line or the pore is formed in a direction perpendicular to the longitudinal direction of the cylindrical main body.

  According to this invention, the easy-opening means is at least one of a plurality of cut lines or pores formed on at least the ear part side of the ear part and the sealed part, and the cut line or the pore of the cylindrical main body part. Since the easy-opening means formed in the direction orthogonal to the longitudinal direction is at least one of a plurality of cut lines or pores formed in the direction orthogonal to the longitudinal direction of the ear part, the ear part is easily split. Thus, a cylindrical sealed package that can open the cylindrical main body easily and quickly can be manufactured.

  The packaging film according to the present invention for solving the above-mentioned problems has an easy-opening means forming part and an easy-opening means non-forming part on one edge of the left and right edges perpendicular to the longitudinal direction of the belt-like film. It is provided and used for flexible foods.

  According to this invention, the easy-opening means forming part and the easy-opening means non-forming part are provided on one of the left and right edges perpendicular to the longitudinal direction of the belt-like film, and are preferably used for flexible foods. It is done. Such a packaging film can be used as a film for producing an envelope-attached tubular sealed package.

  According to the cylindrical sealed package according to the present invention, since the easy opening means is not provided in the bending portion, even when force is applied to the bending portion or when the ear portion is hooked, the bending portion is It is hard to tear and the contents do not jump out. As a result, the yield in the case of manufacturing an envelope-attached cylindrical sealed package having such a structural form is increased, and a reduction in manufacturing cost can be realized.

  According to the manufacturing method of the cylindrical sealed package according to the present invention, since the easy opening means is not provided in the curved portion, even when force is applied to the curved portion or when the ear is hooked, It is possible to manufacture a cylindrical sealed package body in which the curved portion is difficult to tear and the contents do not jump out. As a result, the yield at the time of manufacture of the envelope-sealed cylindrical sealed package having such a structural form is increased, and the manufacturing cost can be reduced. In addition, even when a force is applied to the curved part due to vibration or impact during transportation of the manufactured cylindrical sealed package with an envelope attached, or when the ear part is hooked, the curved part is difficult to tear and the contents are not removed. Can be prevented from jumping out.

  The packaging film according to the present invention can be used as a film for producing an envelope-attached tubular sealed package.

It is a perspective view which shows an example of the cylindrical sealing packaging body which concerns on this invention. It is sectional drawing of XX of FIG. It is a YY arrow line view of FIG. It is explanatory drawing which shows an ear | edge part. It is explanatory drawing which shows a strip | belt-shaped film (film for packaging). It is explanatory drawing which shows the various forms of an easy-open means. It is a block diagram which shows an example of the manufacturing apparatus of the cylindrical sealed packaging body which concerns on this invention. It is a manufacturing-process figure of the cylindrical sealed packaging body of this Embodiment.

  Hereinafter, a cylindrical sealed package and a manufacturing method thereof according to the present invention will be described in detail with reference to the drawings. The present invention can be modified in various ways as long as it has the technical features, and is not limited to the embodiments specifically shown below.

[Cylindrical sealed package]
FIG. 1 is an example of a fish sausage as a sealed tubular package 100 with an envelope according to the present invention. As shown in FIGS. 1 to 5, the cylindrical sealed package 100 according to the present invention is one of the left and right edges 20, 21 orthogonal to the longitudinal direction of the film. And the end 22 of the other edge 21 are overlapped and sealed. An envelope-attached cylindrical main body 2, a content 3 filled in the cylindrical main body 2, and a binding portion 4 that seals the content 3 by binding both ends in the longitudinal direction of the cylindrical main body 2. ,have. The unsealed end portion 8 of one edge portion 21 becomes the ear portion 1, and at least the ear portion of the ear portion 1 and the sealed portion 9, and at both ends in the longitudinal direction of the cylindrical main body portion 2. Easy-opening means is provided in a portion other than the curved portion.

  Hereinafter, each configuration will be described in detail.

(Cylindrical body)
As shown in FIGS. 4 and 5, the cylindrical main body 2 includes an unsealed end 8 and the other edge of one edge 20 among the left and right edges 20, 21 orthogonal to the longitudinal direction of the film. The end portion 22 of the portion 21 is overlapped and sealed. The method of superimposing is “envelope sticking” in which different surfaces of the front surface 31 and the back surface 30 of the film are brought into contact with each other to be superimposed. The formed cylindrical main body 2 has a cylindrical shape in which an upper end and a lower end are opened before a bundling process described later.

  The resin constituting the cylindrical main body 2 is preferably a vinylidene chloride resin having heat shrinkability, but is not limited thereto. Specific examples of the resin include vinylidene chloride-vinyl chloride copolymer, vinylidene chloride-methyl methacrylate copolymer, vinylidene chloride-vinyl chloride-vinyl acetate copolymer, and the like. You may mix | blend an additive with resin as needed. Examples of the additive include a lubricant, a crosslinking agent, an antioxidant, an ultraviolet absorber, a light stabilizer, a filler, an antistatic agent, an antiblocking agent, a colorant such as a dye pigment, and the like.

  The thickness of the cylindrical main body 2 is usually in the range of 30 μm to 50 μm. The “longitudinal direction” refers to the longitudinal direction of the cylindrical main body. “Orthogonal” refers to a direction perpendicular to the longitudinal direction. "Left and right sides" refers to the left and right sides of the film. “Edge” refers to the left and right ends of the film. “End” refers to both ends of the edge. “Overlapping” means contacting different surfaces of the front and back surfaces of the left and right edges of the film. “Seal” means that the overlapped portions are stuck together. “Envelope sticking” means a method of laminating films in which different surfaces of the front and back sides of the film are brought into contact with each other.

  As shown in FIGS. 3 to 5, the portion 9 to be sealed is a portion other than the end portion 8 that is not sealed in one of the left and right edges 20 of the cylindrical main body 2. By overlapping this portion with the end portion 22 of the other edge portion 21 of the cylindrical main body portion 2 and sealing it, the unsealed end portion 8 becomes the ear portion 1. As a sealing method, heat sealing is preferably applied, but other methods may be used. For example, an adhesive or the like is used. Examples of the heat seal include a bar seal, a rotary roll seal, a belt seal, an impulse seal, a high frequency seal, and an ultrasonic seal.

  As shown in FIGS. 4 and 5, the ear portion 1 is an unsealed end portion 8 of one of the left and right edge portions 20, 21 orthogonal to the longitudinal direction of the cylindrical main body portion 2. As shown in FIG.1 and FIG.2, the ear | edge part 1 has the easy-opening means formation part 1A provided in the linear part 7 other than the bending part 6, and the easy-opening means non-forming part 1B provided in the bending part 6. It consists of The easy-opening means forming part 1A is provided with easy-opening means, and the easy-opening means non-forming part 1B is not provided with easy-opening means. The width | variety of the ear | edge part 1 is 2 mm-20 mm normally.

(Easy opening means)
1, 2, 4, and 5, the easy-opening means is at least the ear portion of the ear portion 1 (the unsealed end portion 8) and the sealed portion 9, and includes the straight portion 7. It is provided in the easy-opening means forming part 1A. As shown in FIG. 5, the easy-opening means is formed on the ear portion 1 and may also be formed on the ear portion side of the portion 9 to be sealed. There is no need to provide means. If the easy-opening means is formed on the ear part side of the part 9 to be sealed, it may be formed on a part of the ear part side, or may be formed on all of the parts to be sealed. . When the easy-opening means is provided also in the portion 9 to be sealed in this way, it is not necessary to perform precise alignment for providing the easy-opening means only in the ear portion 1, and the manufacturing process is simplified. If the easy-opening means is also provided in the portion 9 to be sealed, the ear part 1 can be easily torn by the easy-opening means, and the cylindrical main body part 2 can be easily opened.

  As shown in FIGS. 1 and 2, the straight portion 7 is a portion excluding the curved portion 6 of the cylindrical hermetic package, and the straight portion 7 is formed with an easy-opening means forming portion 1 </ b> A. On the other hand, as shown in FIGS. 1 and 2, the curved portion 6 is a curved surface portion such as a hemispherical surface of a cylindrical sealed package formed when both ends in the longitudinal direction of the cylindrical main body 2 are bound. Yes, easy-opening means non-forming part 1B is formed.

  As shown in FIG. 6, the easy-opening means may be any of a large number of cut lines (including half cuts) 5A, pores 5B, etc., and a notch 5C (V notch, I notch) is further provided at the tip thereof. It may be provided.

  6A to 6C are examples of easy opening means provided in the easy opening means forming portion 1A. FIG. 6A is an example in which a cut line 5A is provided in all of the width direction W of the ear portion 1 and a predetermined width W1 between the ear portion side of the portion 9 to be sealed. The cut lines 5 </ b> A are provided in a perforated intermittent form along the width direction W of the ear 1, and are provided at equal intervals in the longitudinal direction L. Note that the cut lines 5A are alternately provided in the longitudinal direction L at equal intervals with the same form of cut lines or different forms of cut lines.

FIG. 6B is an example in which the pores 5B are provided in all the width direction W of the ear portion 1 and the predetermined width W1 on the ear portion side of the portion 9 to be sealed. The pores 5B are provided in a perforated intermittent form along the width direction W of the ear portion 1, and are provided in the longitudinal direction L at equal intervals. In addition, the pores 5B are also provided in the longitudinal direction L alternately with the same pitch or different pores at equal intervals. FIG. 6C shows a cut line 5 </ b> A provided only in the unsealed portion 8 in the form of FIG. 6A, and the end portion in the width direction W of the ear portion 1 (the opposite end to the sealed portion 9 side). This is an example in which a notch 5C is provided. The notches 5C are provided at equal intervals in the longitudinal direction L. FIG.6 (c) is an example which does not provide the easy-opening means in the part 9 to be sealed.
Note that it is not always necessary to provide an easy-opening means in the portion 9 to be sealed.

  6 (a) to 6 (c), the length of each cutting line 5A is not particularly limited, but is usually about 0.5 mm to 2 mm, and the diameter of each pore 5B is not particularly limited. The depth of cut W2 of the notch 5C is not particularly limited, but is usually about 1 mm to 3 mm.

  The method of forming the easy-opening means is as follows: (a) One edge of the left and right edge parts 20, 21 perpendicular to the longitudinal direction of the belt-like film 13 between the roller to which the diamond powder is adhered and the receiving roller. A method of providing a large number of pores in the edge 20 through the portion 20, (b) a large number of small blades provided on the circumference between the rotary blade and the receiving roller provided with a small blade for cutting on the circumference Between the pressure roller and the positioning roller, the cutting line 5A or the pore 5B or the tip thereof is further passed through one edge 20 out of the left and right edges 20, 21 perpendicular to the longitudinal direction of the strip film 13. Although the method etc. which provide the notch 5C can be mentioned, it is not limited to these.

(Bundling part)
As shown in FIGS. 1 to 4, the binding portion 4 is a portion where both ends in the longitudinal direction of the cylindrical main body portion 2 are bound. By this bundling portion 4, the content 3 filled in the cylindrical main body portion 2 is sealed. The means for forming the binding part 4 is not particularly limited. Specifically, the cylindrical main body 2 is bound to both ends in the longitudinal direction of the cylindrical main body 2 using a metal crimping tool (metallic binding member) 4 in the circumferential direction of the cylindrical main body 2. And a method of bundling both ends with a synthetic resin tape and heating them.

  The synthetic resin tape used here is preferably a vinylidene chloride-based resin, similar to the material of the belt-like film. Examples of the vinylidene chloride resin include a vinylidene chloride-vinyl chloride copolymer, a vinylidene chloride-methyl methacrylate copolymer, and a vinylidene chloride-vinyl chloride-vinyl acetate copolymer. Instead of using a synthetic resin tape, the cylindrical main body 2 may be bundled by directly heat-sealing the both ends of the cylindrical main body 2.

  By providing such a binding portion 4, curved portions 6 are formed at both ends of the cylindrical main body portion 2. The cylindrical main body 2 filled with the contents 3 is bound by the binding part 4 with a sealing property such that the contents 3 do not leak from the cylindrical sealed package 100.

(Contents)
The contents 3 are filled in the cylindrical main body portion 2 in a sealed state, and examples of such foods include flexible foods. Examples thereof include fish paste products such as fish sausage and salmon, animal paste products, paste confections such as mutton and eel, cheese, and the like, but are not particularly limited thereto.

  As described above, according to the cylindrical sealed package 100 according to the present invention, among the ears 1 of the envelope-attached cylindrical main body 2, the ears 1 other than the curved part 6 and at least the ears 1 of the seal part are easily provided. An opening means is provided, and no easy opening means is provided on the ear portion 1 and the seal portion of the bending portion 6. Therefore, even when a force is applied to the bending portion 6 that is not provided with the easy-opening means, the bending portion 6 is difficult to tear and the contents 3 do not jump out. As a result, the yield at the time of manufacture of the envelope-sealed tubular sealed package 100 having such a structural form is increased, and the manufacturing cost can be reduced. Furthermore, even when a force is applied to the bending portion 6 by vibration or impact during conveyance of the envelope-sealed tubular sealed package, the bending portion 6 is difficult to tear and prevents the contents 3 from jumping out. be able to.

[Packaging film]
As shown in FIGS. 5 and 7, the packaging film (band-like film) 13 according to the present invention is formed with easy-opening means on one of the left and right edges 20, 21 orthogonal to the longitudinal direction. It is the film used for the flexible food provided with the part 1A and the easy-opening means non-forming part 1B.

  Examples of the flexible food include fish paste products such as fish sausage and salmon, animal paste products, paste confectionery such as sheep crab and squid, cheese, and the like, but are not particularly limited thereto.

  Since the resin constituting the packaging film 13 and the additive added as necessary are the same as the resin and additive constituting the cylindrical main body 2 described above, description thereof is omitted here. The thickness of the packaging film 13 is also the same as that of the film constituting the cylindrical main body 2 described above. Further, the easy-opening means forming part 1A and the easy-opening means non-forming part 1B are also the same as described above, and thus the description thereof is omitted here.

[Manufacturing method of cylindrical sealed package]
As shown in FIG. 7, the manufacturing method of the cylindrical sealed package according to the present invention is an easy-opening means on one edge 20 of the left and right edges 20, 21 orthogonal to the longitudinal direction of the strip film 13. The step of providing the forming portion 1A and the easy-opening means non-forming portion 1B is overlapped by pasting the envelope so that the sealed portion 9 other than the end portion of the one edge portion 20 overlaps the end portion 22 of the other edge portion 21. A step of sealing the overlapped portion to obtain a cylindrical main body portion 14 having the end portion 8 of one edge portion 20 as the ear portion 1, and a step of filling the cylindrical main body portion 14 with the contents 3 And bundling at one end portion in the longitudinal direction of the cylindrical main body portion 14 in the easy opening means non-forming portion 1B, and bundling at the other end portion in the longitudinal direction of the cylindrical main body portion 14 are not easily opened means. And the step of sealing the contents 3 in the cylindrical main body portion 14 by the forming portion 1B.

  Hereinafter, based on the manufacturing process diagram of FIG. 8, each process will be described with reference to FIG. In addition, you may perform the binding process of FIG. 8 just before a filling process.

(Step of providing an easy-opening means forming part and an easy-opening means non-forming part)
The easy-opening means forming part 1A and the easy-opening means non-forming part 1B are formed by forming the easy-opening means on one edge 20 out of the left and right edges 20, 21 perpendicular to the longitudinal direction of the belt-like film 13. It is a process of providing the part 1A and the easy-opening means non-forming part 1B. The easy-opening means forming part 1A is a part where the ear part 1 is provided with easy-opening means, and the easy-opening means non-forming part 1B is a part where the ear part 1 is not provided with the easy-opening means. The easy-opening means forming part 1 </ b> A and the easy-opening means non-forming part 1 </ b> B of the ear part 1 are respectively provided at predetermined positions in the longitudinal direction of the belt-like film 13.

  Various means can be applied to the means for providing the easy-opening means forming part 1A and the easy-opening means non-forming part 1B. Specifically, as shown in FIG. 7, a vinylidene chloride resin film roll is prepared as the winding roll 12, and then the belt-like film 13 drawn from the winding roll 12 is supplied to the easy-opening means forming apparatus 10. The easy-opening means forming apparatus 10 positions the belt-like film 13 with the positioning roller 16, and then passes the belt-like film 13 between the processing roller 17 having a width of 4 mm for forming the cut line and the receiving roller 18, and the left and right edges of the belt-like film 13. Cut lines 5A or pores 5B are formed on one edge 20 of the parts 20 and 21. At this time, in the longitudinal direction of the strip film 13, for example, a portion (easy-opening means forming portion 1 </ b> A) provided with a cut line 5 </ b> A having a length of 160 mm is formed, and a cut line 5 </ b> A or a pore having a length of 70 mm is formed. A portion where 5B is not provided (easy-opening means non-forming portion 1B) is formed. In addition, this easy-opening means non-formation part 1B is bundled with a binding member, and the curved part 6 of the cylindrical sealing packaging body 100 will be formed.

(Edge superposition process)
The superimposing step is a step of superimposing by sealing the envelope so that the sealed portion 9 other than the end portion 8 of the one edge portion 20 of the belt-like film 13 overlaps the end portion 22 of the other edge portion 21. Various methods can be applied to the superimposing means. As an example, as shown in FIG. 7, a belt-like film 13 having one edge portion 20 provided with an easy opening means forming portion 1A and an easy opening means non-forming portion 1B is wound around a cylindrical hopper 15. It forms into a cylinder shape and it overlaps by sticking an envelope so that the part 9 other than the edge part 8 of the edge part 20 may overlap the edge part 22 of the other edge part 21. At this time, the portion 9 to be overlap-sealed is usually about 1 mm to 4 mm, and the end 8 is about 2 mm to 10 mm in width. The surfaces to be overlapped are different from each other on the front surface and the back surface of the belt-like film 13.

(Cylindrical body forming process)
The cylindrical main body forming step is a step of obtaining a cylindrical main body 14 having the ears 1 as the ends 8 (unsealed portions) of one edge 20 by sealing the overlapped portion in the overlapping step. . Specifically, as shown in FIG. 7, the cylindrical main body 2 is formed in a cylindrical shape wound around the hopper 15 by sealing the overlapping portions of the left and right edges 20 and 21. A cylindrical body 14 is formed by shaping with a shaping cylinder. The ears 1 are continuously formed by the seal, and the ears 1 are successively formed from the upper side to the lower side by the sealing means.

  As a sealing means, as shown in FIG. 7, a heat seal using a fusion device 11 in which the overlapped edges 20 and 21 are formed of a bar-shaped seal member, particularly a high frequency seal or an ultrasonic seal is preferably mentioned. be able to.

(Filling process)
The filling step is a step of filling the contents 3 into the cylindrical main body 14. Various methods can be applied to the filling means. As an example, for example, fish meat paste is kneaded in advance as the contents 3 and filled into the cylindrical main body portion 14 from the hopper 15 by a quantitative transfer pump (not shown). The filling rate of the contents 3 in the cylindrical main body 14 is determined in consideration of the degree of film shrinkage.

(One-end binding process)
This bundling step is a step in which bundling at one end in the longitudinal direction of the cylindrical main body portion 14 is performed by the easy-opening means non-forming portion 1B. Various methods can be applied to the bundling means. As an example, the easy-opening means non-forming part 1B on the lower side of the cylindrical main body part 14 is bundled with a metal caulking tool 4 or a synthetic resin tape as a binding member, or directly heat-sealed and bound.

(Sealing process)
The sealing step is a step of sealing the contents 3 in the cylindrical main body 14 by bundling at one end on the upper side in the longitudinal direction of the cylindrical main body 14 at the easy opening means non-forming portion 1B. Various methods can be applied to the sealing means. As an example, the easy-opening means non-forming portion 1B on the upper side of the cylindrical main body portion 14 filled with the contents 3 is sealed with a metal caulking tool 4 or a synthetic resin tape as a binding member, or directly heat sealed. And seal.

(Other processes)
The sealed cylindrical main body 14 is then cut and subjected to heat sterilization or the like as necessary to produce a cylindrical sealed package.

  The cutting process is a process of cutting and separating the cylindrical main body near the part bound in the sealing process. Various cutting means can be applied. As an example, about the cylindrical main-body part 14 already cut | disconnected under the lower binding member 4, the upper part of the upper binding member 4 is cut | disconnected. In this way, one envelope-sealed cylindrical sealed package 100 is manufactured. The manufactured envelope-sealed tubular sealed package 100 is, for example, a tubular sealed package (fish sausage) having a total length of 200 mm and a length of 160 mm of the easy-opening means forming portion 1A.

  A heat sterilization process is a process of heat-sterilizing the cylindrical sealing packaging body 100, and is provided as needed. Various methods can be applied to the heat sterilization means and conditions. As an example, the produced cylindrical sealed package (fish sausage) is sterilized by heating at 80 ° C. for 45 minutes or 120 ° C. for 4 minutes, for example. At this time, the heat-shrinkable vinylidene chloride resin film constituting the cylindrical sealed package can be heat-shrinked.

  As described above, the envelope-sealed tubular sealed package (fish sausage) 100 manufactured by the manufacturing method according to the present invention is provided with easy-opening means in manufacturing processes such as a filling process, a sealing process, and a heat sterilization process. Even when a force is applied to an uncurved curved portion or when an ear is hooked, the curved portion is not torn and contents such as fish paste do not jump out. As a result, the yield when manufacturing products such as fish sausage increased, and the manufacturing cost could be reduced. In addition, even if a tube-shaped sealed package such as fish sausage is being transported, even if force is applied to the curved part due to vibration or impact, etc. The sealed package was able to be distributed.

DESCRIPTION OF SYMBOLS 1 Ear part 1A Easy-opening means formation part 1B Easy-opening means non-forming part 2 Cylindrical main-body part 3 Contents 4 Metal crimping tool (metal binding member)
5A, 5A 'Cut line 5B Pore 5C Notch 6 Curved part 7 Straight line part 8 End part 9 Sealed part (sealed part)
DESCRIPTION OF SYMBOLS 10 Easy-opening means formation apparatus 11 Fusing apparatus 12 Roll roll 13 Band-shaped film (film for packaging)
DESCRIPTION OF SYMBOLS 14 Cylindrical main-body part 15 Hopper 16 Positioning roller 17 Processing roller 18 Receiving roller 19 Guide roller 20 One edge part 21 The other edge part 22 End part 30 Back surface 31 Surface 100 Cylindrical sealing packaging body 101 Manufacturing of cylindrical sealing packaging body Device W Width direction of ear portion L Longitudinal direction of ear portion W1 Predetermined width of easy-opening means provided at a portion to be sealed W2 Depth of notch

Claims (5)

An envelope-attached cylindrical main body portion in which one edge portion and the other edge portion of the left and right edge portions perpendicular to the longitudinal direction of the film are overlapped and sealed, and the cylindrical main body portion is filled. A content, and a bundling portion that seals the content by binding both ends in the longitudinal direction of the cylindrical main body,
The unsealed end portion of the one edge portion becomes an ear portion, and at least the ear portion of the ear portion and the sealed portion other than the curved portions at both ends in the longitudinal direction of the cylindrical main body portion An easy-opening means is provided on the tubular sealed package.   The easy-opening means is at least one of a plurality of cut lines or pores formed in at least the ear part of the ear part and the sealed portion, and the cut line or the pore of the cylindrical main body part. The cylindrical hermetic package according to claim 1, wherein the cylindrical hermetic package is formed in a direction orthogonal to the longitudinal direction. A step of providing an easy-opening means forming part and an easy-opening means non-forming part on one of the left and right edges perpendicular to the longitudinal direction of the belt-shaped film;
A step of overlapping the one edge by sealing the envelope so that the sealed portion other than the end overlaps the end of the other edge; and
Sealing the overlapped portion and obtaining a cylindrical main body with the end of the one edge as an ear; and
Filling the cylindrical body with contents,
A step of performing bundling at one end in the longitudinal direction of the cylindrical main body portion in the easy-opening means non-forming portion;
And bundling at the other end in the longitudinal direction of the cylindrical main body portion with the easy-opening means non-forming portion to seal the contents in the cylindrical main body portion. Method for manufacturing a sealed package.   The easy-opening means is at least one of a plurality of cut lines or pores formed in at least the ear part of the ear part and the sealed portion, and the cut line or the pore of the cylindrical main body part. The manufacturing method of the cylindrical sealed packaging body of Claim 3 currently formed in the direction orthogonal to a longitudinal direction. An easy-opening means forming part and an easy-opening means non-forming part are provided on one of the left and right edges perpendicular to the longitudinal direction of the belt-like film, and the packaging is used for flexible foods Film.

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