JP2018062347A - Bending opening package, manufacturing apparatus and manufacturing method for bending opening package - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a bending opening package which allows an opening portion of a sheet material to be hardly opened even if somewhat deformed, and can prevent a content stored in a storage portion from leaking to the outside, and provide a manufacturing apparatus and a manufacturing method for the bending opening package.SOLUTION: A bending opening package 1A includes a sheet material 2 having a notch 17 formed on one surface thereof which is ruptured and opened with a bending operation in a two-fold state, a film material 3 bonded to the other surface of the sheet material 2, a bag-shaped storage portion 4 for storing a predetermined amount of a content formed between facing surfaces of the materials 2 and 3. The sheet material 2 is formed in a shape protruding like a shell of a turtle in a direction opposite to a direction in which the materials 2 and 3 are overlapped in a thickness direction T. The seal portions 415 and 416 formed on an outer peripheral portion of the sheet material 2 protrude outward obliquely downward than the storage portion 4.SELECTED DRAWING: Figure 1

Description

  The present invention relates to a folded open package for individually packaging contents such as liquid, paste, powder, granule, tablet, and the like, and a manufacturing apparatus and a manufacturing method for the folded open package.

  To date, many packages have been proposed for packaging the above-mentioned contents in a necessary amount, and the contents can be taken out as needed. Patent Documents 1, 2, and 3 The package disclosed in (1) is one of such packages.

  The packaging body of patent documents 1, 2, and 3 is provided with a sheet member formed of semi-rigid plastic, and a bag-shaped storage unit that stores the contents formed on the back side of the sheet member. The opening part formed in the sheet member is opened by the folding operation, and the contents stored in the storage part are pushed out from the opening part of the sheet member and used.

  If the thickness of the sheet member is reduced, the folding resistance when the packaging body is folded in two is reduced, so that the contents enclosed in the packaging body can be easily taken out from the unsealed portion of the sheet member. However, even if the sheet member is slightly curved (for example, warped, twisted, bent, etc.) by an external force applied during transportation or transportation, the unsealed portion of the sheet member is easily opened and accommodated in the accommodating portion. There is a risk of leaked contents.

  Therefore, if the thickness of the sheet member is increased, the unsealed portion is difficult to be opened even if the sheet member is slightly curved, and the contents accommodated in the accommodating portion can be prevented from leaking to the outside. Since the bending resistance at the time of folding into the folded state is increased, it is difficult to fold the package body in the folded state, and it becomes difficult to take out the contents accommodated in the accommodating portion.

JP 2004-083120 A JP 2010-504888 A JP 2014-533222 A

  The present invention relates to a folded unsealed packaging body and an apparatus for manufacturing a folded unsealed packaging body that can prevent the unsealed portion of a sheet member from being unsealed even if somewhat deformed, and prevent the contents accommodated in the accommodating portion from leaking to the outside. And it aims at providing a manufacturing method.

  The present invention is a folded unwrapped package having an unsealed portion that is unsealed with the folding operation of the package body, wherein the package body is folded in half with the unsealed portion formed on one surface. A sheet member that can be folded into a sheet member, a film member that is bonded to the other surface of the sheet member, and a storage unit that stores the contents formed between the sheet member and the opposing surface of the film member. The sheet member is formed in a shape projecting in a direction opposite to the direction in which the sheet member and the film member are overlapped.

According to this invention, even if it deform | transforms a little, the opening part of a sheet | seat member cannot be opened easily, and it can prevent that the content accommodated in the accommodating part leaks outside.
Specifically, since the sheet member is formed in a shape that protrudes in a direction opposite to the direction in which the sheet member and the film member are overlapped, the sheet member may be slightly deformed, for example, during transportation or transportation. The unsealed portion of the sheet member is difficult to be unsealed, and the folded portion of the sheet member can be prevented from being bent below a predetermined folding angle.

  As a result, even if the thickness of the sheet member is reduced, the unsealed portion of the sheet member is not opened until the sheet member is bent to a predetermined folding angle or less, and the contents stored in the storage portion are prevented from leaking to the outside. it can.

  In addition, for example, there is no need to form reinforcing portions such as ribs, thick portions, and molded portions on the sheet member, and the surface of the sheet member can be maintained in a substantially smooth state. Characters, designs, illustrations, etc.) can be printed in a clear and clear state on the surface of the sheet member.

Furthermore, since it is not necessary to increase the thickness of the sheet member provided with the unsealed portion more than necessary, and the sheet member can be configured with a thin sheet member, the opposing edges of the sheet member and the film member are joined. In this case, the thinner the sheet member is, the shorter the time required for joining is, so that the material cost and the manufacturing cost can be reduced.
Furthermore, since a sheet member having a small thickness is more flexible than a sheet member having a large thickness, for example, color printing or multicolor printing can be performed.

  Examples of the sheet member include amorphous polyethylene terephthalate (A-PET), polypropylene (PP), biaxially stretched polyester (OPET), biodegradable plastic (PLA), polycarbonate (PC), polyethylene (PE), and polystyrene (PS). ), PETG resin, or a single sheet or composite sheet such as cardboard or metal sheet.

  The above-mentioned film member is a simple substance such as unstretched polypropylene (CPP), biaxially stretched polypropylene (OPP), biaxially stretched polyester (OPET), polyethylene (PE), cellulose propionate (CP), or metal (aluminum). You may comprise with the film member formed with material or the composite material.

The above-described sealing material may be formed of a thin foil body such as an aluminum foil, a stainless steel foil, a copper foil, an iron foil, or a resin film.
In addition, you may change the material and thickness of a sheet | seat member and a film member according to the kind of content, or the internal shape of a package body, for example. Further, for example, when enclosing contents that require gas barrier properties, moisture resistance, fragrance, etc., a sheet member or a film member made of a material may be used in combination in accordance with the characteristics and properties of the contents.

  The above-described contents may be configured in a liquid form, a paste form, a powder form, a granular form, a tablet form, or the like, for example. Further, the unsealing part peels off the portion corresponding to the sealing structure that breaks and opens the sealing material that covers the cut formed in the sheet member, or between the two cuts formed in the sheet member and the film member, for example. It can be configured with a structure that can be opened. Specifically, for example, it is disclosed in Japanese Patent Application Publication No. 2010-504888, Japanese Patent Application Publication No. 2014-533222, Japanese Unexamined Patent Application Publication No. 2004-83120, Japanese Unexamined Patent Application Publication No. 2006-240747, Japanese Unexamined Patent Application Publication No. 2014-198601, and the like. You may comprise by structure.

  As an aspect of the present invention, at least the opposite edge of the outer edge of the seat member in the sheet member may protrude in a direction opposite to the protruding portion of the sheet member.

  At least the opposite edge of the above-mentioned peripheral edge is, for example, the peripheral edge of the sheet member formed in a desired shape, or the long side edge or short side of the sheet member formed in a substantially rectangular shape in plan view It is a concept that includes an edge, or a peripheral portion of a sheet member formed in a substantially bowl shape in plan view or a substantially ring shape in plan view (including a donut shape).

According to this invention, it can prevent reliably that the content accommodated in the accommodating part leaks outside.
Specifically, since the storage part of the folded open package is formed on the inner side of the edge part that protrudes outward from the storage part in the sheet member, for example, in transportation, transportation, and take-out, fingers, objects, etc. It is easy to come into contact with the edge of the sheet member protruding outward from the storage portion, and it is possible to avoid a strong contact with the film member corresponding to the storage portion.

  As a result, it is possible to prevent a finger or an object of the hand from being strongly abutted against the film member of the housing part or applying a large impact, so that it is difficult for the film member to be torn or a hole to be opened. It is possible to reliably prevent the contents stored in the section from leaking to the outside.

  As a result, even if the thickness of the sheet member is reduced, the unsealed part of the sheet member is not opened until the sheet member is bent to a predetermined folding angle or less, and it is ensured that the contents stored in the storage part leak to the outside. In addition, the weight can be reduced.

  In addition, when the folded and opened package is placed with the accommodating portion facing downward with respect to a substantially flat placing portion such as a table or a tray, the edge portion protruding outward from the accommodating portion in the sheet member is placed. Since it is grounded to the placing part, the accommodating part of the folded unwrapped package can be supported in a state of being spaced a predetermined distance from the placing part.

  Thereby, since it can avoid that the outer surface of the film member corresponding to an accommodating part contacts a mounting part directly, the surface of the film member corresponding to an accommodating part can be prevented from becoming dirty or damaged, and clean and A hygienic state can be maintained.

  Further, as an aspect of the present invention, the height difference between the central portion of the protruding portion of the sheet member and the peripheral portion protruding outward from the accommodating portion of the sheet member is determined by the longitudinal direction of the sheet member and the short method. You may form in the height included in the range of about 3%-about 30% on the basis of at least one dimension among them.

According to the present invention, it is possible to secure a volume capable of accommodating a predetermined amount of contents.
Specifically, the height of the center portion of the protruding portion of the sheet member is included in a range of about 3% to about 30% based on at least one dimension of the longitudinal direction and the short direction of the sheet member. To form.
As a result, a predetermined amount of the stored item can be stored in the storage portion while maintaining a structure that can be folded in a folded state.

  Further, as an aspect of the present invention, the difference in height between the protruding portion of the sheet member and the peripheral portion protruding outward from the accommodating portion of the sheet member is about 3 times to about about 3 times based on the thickness of the sheet member. You may form in the height difference contained in the range of 30 times.

According to this invention, it is possible to reliably secure a volume capable of accommodating a predetermined amount of stored items.
Specifically, the volume of the accommodating portion formed between the facing surfaces of the sheet member and the film member is formed according to the thickness of the sheet member.
Thereby, a predetermined amount of contents can be reliably accommodated in the accommodating portion while maintaining a functional structure that can be folded in a folded state.

  Further, as an aspect of the present invention, the area of the unjoined portion corresponding to the accommodating portion in the film member is formed in an area included in a range of about 10% to about 90% based on the area of the entire sheet member. Also good.

According to the present invention, a volume capable of storing a predetermined amount of stored items can be ensured more reliably.
Specifically, the volume of the accommodating portion formed between the opposing surfaces of the sheet member and the film member is formed according to the area of the unjoined portion between the members.
Accordingly, a predetermined amount of contents can be more reliably accommodated in the accommodating portion while maintaining a functional structure that can be folded in a folded state.

Further, as an aspect of the present invention, at least one of the peripheral edge portions of the sheet member that protrudes outward from the accommodating portion has a recessed portion that is recessed in a concave shape from the outer peripheral portion to the central portion of the sheet member. It may be formed.
According to the present invention, the folded and opened package can be easily taken up from a state where it is placed on a substantially flat mounting portion.

  In detail, since the recessed part recessed in the concave shape has entered into the inner side from the edge part of the sheet member, the folded unwrapped packaging body is placed, for example, with the accommodating part facing downward with respect to the substantially flat placing part. In this case, a gap is easily formed between the recess formed in the sheet member and the substantially flat mounting portion, and a finger or a nail can be inserted from the recess into the lower side of the unsealed package. it can.

  As a result, even if the folded unwrapped package is placed so that the accommodating portion faces downward with respect to the substantially flat mounting portion, the folding can be performed by simply hooking the finger or nail of the hand onto the recess of the sheet member. The opened package can be picked up easily.

Moreover, as an aspect of the present invention, the end portions of the sheet members in the plurality of package bodies arranged in parallel may be connected in a foldable manner via a flexible connecting portion.
According to this invention, it can prevent more reliably that the content accommodated in the accommodating part of the folding opening packaging body leaks outside.

Specifically, the folded open packaging bodies are sandwiched inside by folding the adjacent folded open packaging bodies so that the accommodating sections are inside.
Thereby, it can prevent more reliably that the surface of the film member corresponding to an accommodating part becomes dirty during a transportation or transportation, for example.

  In addition, the film member of the housing portion is not easily torn or a hole is hardly formed, and the contents stored in the housing portion can be more reliably prevented from leaking to the outside.

  Further, the present invention provides a sheet base material in which an unsealed portion that is opened in accordance with an operation of folding in a folded state is formed on one surface, a film base material that is bonded to the other surface of the sheet member, and the base material An apparatus for manufacturing a folded and unsealed package including an accommodating portion for filling contents formed between opposing surfaces, wherein the film substrate is superimposed on the other surface of the sheet substrate. When heat-sealing the facing edge portions of the overlapping means and the base materials overlapped by the overlapping means, the sheet base material is directed in a direction opposite to the direction in which the base materials are overlapped with each other. When the sealing means that is deformed into an overhanging shape and the edge portions of the base materials facing each other are heat-sealed by the sealing means, the content of the container is formed between the opposing surfaces of the base materials. Filling things That the filling means, a strip-shaped package in which the substrate to each other and formed by heat sealing, the contents are characterized in that a dividing means for dividing a single package filled.

  Further, the present invention provides a sheet base material in which an unsealed portion that is opened in accordance with an operation of folding in a folded state is formed on one surface, a film base material that is bonded to the other surface of the sheet member, and the base material A folded unwrapped package manufacturing method comprising a container filled with contents formed between opposing surfaces, wherein the film base material is overlaid on the other surface of the sheet base material A superimposing step having a superimposing means and a direction in which the base materials are superposed on each other when heat-sealing the opposing edges of the base materials superposed in the superposition step; A sealing step comprising a sealing means that deforms into a shape projecting in the opposite direction; and when the opposite edges of the bases are heat sealed in the sealing step, between the opposing surfaces of the bases A filling step provided with a filling means for filling the contents into the containing portion, and a band-shaped package formed by heat-sealing the substrates together, It is characterized by performing in this order the dividing step provided with a dividing means for dividing the package.

According to this invention, even if it deform | transforms a little, it is hard to open the opening part of a sheet | seat member, and the bending opening packaging body which can prevent the content accommodated in the accommodating part leaking outside can be manufactured.
Specifically, in the superimposing step, the sheet base material and the film base material are bonded together by an overlapping means. In the sealing step, when the opposite edge portions of the base materials are heat sealed by the sealing means, the sheet base material is deformed into a shape projecting in a direction opposite to the direction in which the base materials are overlapped. In the filling step, a predetermined amount of content is filled into the accommodating portion formed between the opposing surfaces of the base materials by the filling means. In the dividing step, the band-shaped package formed by heat sealing the substrates is divided into one package filled with the contents by the dividing means.

Thereby, for example, during transportation or transportation, the unsealed portion of the sheet member is hardly unsealed even if it is somewhat deformed, and the folded portion of the sheet member can be prevented from being bent below a predetermined folding angle.
As a result, even if the thickness of the sheet member is reduced, the unsealed portion of the sheet member is not opened until the sheet member is bent to a predetermined folding angle or less, and the contents stored in the storage portion are prevented from leaking to the outside. A foldable unfolded packaging body can be produced.

  As an aspect of the present invention, when the sealing means is heat-sealed on both sides of the sheet base material and the film base material that are superposed in the longitudinal direction, the base materials are superposed on each other. A first sealing means that deforms into a substantially arcuate cross-section projecting in a direction opposite to the direction, and a heat-sealing portion of the base materials that are overlapped in the short direction, You may comprise the part overlapped in the direction with the 2nd seal means which changes in the cross-sectional substantially arc shape projected toward the direction opposite to the part which the sheet base material projected. Or you may comprise the said sealing process by the 1st sealing process provided with the said 1st sealing means, and the 2nd sealing process provided with the said 2nd sealing means.

According to this invention, it can prevent reliably that the content accommodated in the accommodating part leaks outside.
Specifically, the housing part of the folded open package manufactured by heat sealing with the first sealing means in the first sealing process and the second sealing means in the second sealing process protrudes outside the housing part in the sheet member. For example, during transportation, transportation, and taking out, the fingers and objects of the hand are likely to come into contact with the edge of the sheet member protruding outward from the storage part, and correspond to the storage part. It is possible to avoid strong contact with the film member.

  As a result, it is possible to prevent a finger or an object of the hand from being strongly abutted against the film member of the housing part or applying a large impact. It is possible to manufacture a folded and opened package that can reliably prevent the contents contained in the part from leaking to the outside.

  As a result, even if the thickness of the sheet member is reduced, the unsealed part of the sheet member is not opened until the sheet member is bent to a predetermined folding angle or less, and it is ensured that the contents stored in the storage part leak to the outside. In addition, it is possible to manufacture a folded and opened package with reduced weight.

  Further, as an aspect of the present invention, the sheet base material is shifted toward the center portion in the short direction between the overlapping means and the sealing means or between the overlapping process and the sealing process. In addition, a width-shifting means that deforms into a shape projecting in a direction opposite to the direction in which the base materials are superimposed may be provided. Or you may arrange | position the width alignment process provided with the width alignment means.

According to this invention, the sheet base material can be preliminarily deformed into a shape projecting in a direction opposite to the direction in which the base materials are superimposed.
Specifically, in the width-shifting step, the sheet base material is width-shifted toward the center portion in the short direction by the width-shifting means, and the sheet base material is directed in a direction opposite to the direction in which the base materials are overlapped with each other. While preliminarily deforming into an overhanging shape, the substrate is supplied to the sealing step while being deformed into a shape overhanging in a direction opposite to the direction in which the base materials are superimposed.

Thereby, the edge part which the base materials oppose can be reliably heat-sealed, deform | transforming into the shape which protruded toward the direction opposite to the direction where the base materials were piled up.
As a result, the unsealed portion of the sheet member is not unsealed until it is folded to a predetermined folding angle or less, and a folded unsealed packaging body that can more reliably prevent the contents accommodated in the accommodating portion from leaking to the outside is manufactured. can do.

  As an aspect of the present invention, the first sealing means is composed of one vertical seal roll arranged on the sheet base material side and the other vertical seal roll arranged on the film base material side, And on the circumferential surfaces of both end portions in the axial direction of the other longitudinal seal roll, longitudinal pressing portions are formed continuously in the circumferential direction to heat-seal the portions on both sides of the substrates that are overlapped in the longitudinal direction. The vertical pressing portion of the vertical seal roll is formed in a shape in which the outer diameter gradually decreases from both axial end portions toward the central portion, and the other vertical pressing portion of the vertical sealing roll is the axial end portions. You may form in the shape where an outer diameter becomes large gradually toward a center part.

According to this invention, it is possible to reliably deform the portions on both sides of the substrates that are overlapped in the longitudinal direction into a shape that protrudes in the direction opposite to the protruding portion of the sheet substrate.
Specifically, when pressing the portions on both sides superimposed in the longitudinal direction between the substrates with the longitudinal pressing portions of the pair of vertical seal rolls, the portions on both sides superimposed in the longitudinal direction between the substrates are replaced with the sheet substrate. The cross-section is deformed into a substantially arc shape projecting in the direction opposite to the protruding portion.

Thereby, the both-sides part piled up in the longitudinal direction of base materials can be reliably heat-sealed, changing the both-sides part piled up in the longitudinal direction in base materials in the cross-sectional substantially arc shape.
As a result, the unsealed portion of the sheet member is not unsealed until it is folded to a predetermined folding angle or less, and a folded unsealed packaging body that can more reliably prevent the contents accommodated in the accommodating portion from leaking to the outside is manufactured. can do.

  Moreover, as an aspect of the present invention, the second sealing means is composed of one horizontal seal roll arranged on the sheet base material side and the other horizontal seal roll arranged on the film base material side, Forming a convex sheet pressing portion that presses the sheet base material side in a direction in which the base materials are overlapped with each other on the peripheral surface of the horizontal seal roll, and on the peripheral surface of the other horizontal seal roll, You may form the concave film press part which presses the film base material side in the direction where the said base materials were piled up.

According to this invention, it is possible to reliably deform the portion of the base material that is overlapped in the short direction into a shape that protrudes in the direction opposite to the protruding portion of the sheet base material.
Specifically, when the portion overlapped in the short direction between the base materials is pressed with the sheet pressing portion and the film pressing portion of the pair of horizontal seal rolls, the portion overlapped in the short direction between the base materials, The sheet base material is deformed into a substantially arc-shaped cross section that protrudes in the direction opposite to the protruding portion of the sheet base material.

Thereby, the part piled up in the transversal direction of base materials can be reliably heat-sealed, changing the part piled up in the transversal direction in base materials in the cross-sectional substantially arc shape.
As a result, the unsealed portion of the sheet member is not unsealed until it is folded to a predetermined folding angle or less, and a folded unsealed packaging body that can more reliably prevent the contents accommodated in the accommodating portion from leaking to the outside is manufactured. can do.

  As an aspect of the present invention, the heat seal temperature of the other vertical seal roll and the horizontal seal roll may be set higher than the heat seal temperature of the one vertical seal roll and the horizontal seal roll.

According to this invention, the opposing edge part of a sheet base material and a film base material can be sealed reliably.
Specifically, for example, when heat-sealing the portions on both sides of the sheet substrate and the film substrate that are overlapped in the longitudinal direction with a pair of vertical seal rolls, or a pair of portions that are overlapped in the short direction between the substrates. When the heat sealing is performed with the horizontal sealing roll, the sheet base material side is heated to about 70 degrees with one sealing roll, and the film base side is heated to about 130 degrees with the other sealing roll.
In addition, the temperature of the other seal roll should just be higher than the temperature of one seal roll, and is not limited to the above-mentioned temperature.

Thereby, the heat shrinkage rate generated in the film base material is larger than the heat shrinkage rate generated in the sheet base material, and the film base material is strained in the longitudinal direction and the short side direction.
As a result, the sheet base material can be positively deformed by a shape projecting in a direction opposite to the direction in which the base materials are overlapped.

  Moreover, since the surface of the film substrate corresponding to the accommodating portion is not easily formed with wrinkles or waves, for example, and can be finished to a substantially smooth surface, when folding the folded open package in a folded state, or When held by hand, not only a good hand feeling can be obtained, but the contents are less likely to remain in the accommodating portion, and almost all the contents can be taken out from the accommodating portion.

  According to this invention, even if the sheet member is slightly deformed, the unsealed portion of the sheet member is not easily unsealed, and the folded unwrapped packaging body and the folded unwrapped package body that can prevent the contents accommodated in the accommodating portion from leaking to the outside. A manufacturing apparatus and a manufacturing method can be provided.

Explanatory drawing of the folding opening packaging body of Example 1. FIG. Explanatory drawing of the opening structure of a folding opening packaging body. The expanded sectional view of the sheet | seat member which crimped | bonded the sealing material. Explanatory drawing of the bending operation | movement of a folding opening packaging body. The partial expanded sectional view at the time of taking out the contents from a bending opening packaging body. Sectional drawing of the state which piled up the folding opening packaging body up and down. Explanatory drawing of the manufacturing method which manufactures the sheet | seat base material used as the base material of a sheet | seat member. Explanatory drawing of the manufacturing method which manufactures a folding opening packaging body. Explanatory drawing of the vertical sealing apparatus which carries out vertical sealing of the base materials in a longitudinal direction. Explanatory drawing of the horizontal sealing apparatus which carries out horizontal sealing of the base materials in a transversal direction. Explanatory drawing of the cutting device which isolate | separates a cylindrical package body into each package body. Explanatory drawing of the bending opening packaging body of Example 2. FIG. Explanatory drawing of the bending opening packaging body of Example 3. FIG. Explanatory drawing of the bending opening packaging body of Example 4. FIG. Explanatory drawing of the bending opening packaging body of Example 5. FIG. Sectional drawing of the folding opening packaging body of Example 6. FIG. Explanatory drawing of the bending opening packaging body of Example 7. FIG. The top view of the bending opening packaging body of Example 8. FIG. Explanatory drawing of the bending opening packaging body of Example 9. FIG. Explanatory drawing of the bending opening packaging body of Example 10. FIG. Explanatory drawing of the bending opening packaging body of Example 11. FIG.

An embodiment of the present invention will be described in detail with reference to the drawings.
Example 1
FIG. 1 is an explanatory view of a folded and opened packaging body 1A of Example 1. Specifically, FIG. 1 (a) is a perspective view of the folded and opened packaging body 1A viewed from obliquely above, and FIG. 1 (b) is a folded view. It is the top view which looked at bending opened packaging body 1A from the surface side.

  FIG. 2 is an explanatory view of the opening structure of the folded and opened packaging body 1A. Specifically, FIG. 2 (a) is a cross-sectional view of the folded and opened packaging body 1A divided at the center in the lateral direction W, FIG. FIG. 3B is an enlarged sectional view of the part a shown in FIG. 3A, and FIG. 3 is an enlarged sectional view of the sheet member 2 to which the sealing material 18 is pressure-bonded.

FIG. 4 is an explanatory view of the folding operation of the folded and opened packaging body 1A. Specifically, FIG. 4 (a) is a side view of the folded and opened packaging body 1A, and FIG. 4 (b) is a folded view. FIG. 5 is a partially enlarged sectional view when the contents C are taken out from the folded and opened packaging body 1A, and FIG. 6 is a sectional view in which the folded and opened packaging bodies 1 are stacked. FIG.
It is.

  In addition, the longitudinal direction L (length direction) in the following description is a direction that coincides with the longitudinal direction of the folded open package 1A having a substantially rectangular shape in plan view, and the short direction W (width direction) is This is a direction orthogonal to the longitudinal direction L in the planar direction.

  The folded and opened package 1A of Example 1 is a small package that encloses (fills) the amount of contents C required for one use, and folds the package body 1a that is substantially rectangular in plan view. A sheet member 2 that can be folded into a state, a flexible film member 3 bonded to the back side of the sheet member 2, and a predetermined amount of contents C formed between the opposing surfaces of the members 2 and 3 It is comprised with the bag-shaped accommodating part 4 to accommodate (refer FIG. 1 (a) (b), FIG. 2 (a) (b)).

  The sheet member 2 includes an amorphous polyethylene terephthalate (A-PET) sheet base 2a formed to a thickness of 0.3 mm and a polyethylene (PE) film seal material 2b formed to a thickness of 0.03 mm. ing. The film sealing material 2b is adhered so as to cover both the front and back surfaces of the sheet base 2a (or at least one surface of the front and back surfaces) (see FIG. 2B).

  The sheet member 2 is formed in a shape projecting like a turtle shell in a direction opposite to the direction in which the sheet member 2 and the film member 3 are overlapped in the thickness direction T. The height h of the central portion of the protruding portion of the sheet member 2 is included in a range of about 3% to about 30% based on at least one dimension of the longitudinal direction L and the short direction W of the sheet member 2. In addition to being formed to a height, the sheet member 2 is formed to a height included in a range of about 3 times to about 30 times based on the thickness of the sheet member 2 (see FIG. 2A).

  The film member 3 bonded to the back side of the sheet member 2 is a biaxially stretched polyester (OPET) film base (not shown) formed to a thickness of 0.3 mm and a polyethylene (PE) formed to a thickness of 0.03 mm. ) And a film sealing material (not shown). The film sealing material is stuck so as to cover both the front and back surfaces (or one surface) of the film base.

  The outer peripheral edge portion corresponding to the inner surface of the accommodating portion 4 in the film member 3 is joined to the outer peripheral edge portion on the back surface side in the sheet member 2. A bag-shaped storage portion 4 is formed between opposing surfaces inside seal portions 415 and 416 formed by joining opposing outer peripheral edge portions of the sheet member 2 and the film member 3 (FIG. 2A). reference).

The accommodating portion 4 is formed on the inner side of the seal portion 415 on both long side edges and the seal portion 416 on both short side edges formed by joining the outer peripheral edge portions facing each other of the sheet member 2 and the film member 3. (See FIG. 2A).
The width of the seal portions 415 and 416 needs to be about 2 mm at the minimum from the end portion of the sheet member 2.

  The unjoined portion of the film member 3 corresponding to the housing portion 4 is formed inside the seal portions 415 and 416 of the package body 1a. The area of the unbonded portion of the film member 3 is formed in an area included in a range of about 10% to about 90% based on the entire area of the sheet member 2 (see FIG. 2A).

  In the central part of the longitudinal direction L of the sheet member 2 protruding in the shape of a turtle shell, a folding part 15 that can be folded in a folded state with respect to the longitudinal direction L is perpendicular to the longitudinal direction L of the sheet member 2. They are formed in the short direction W (see FIGS. 1 and 2).

  An unsealed region 16 indicated by a two-dot chain line in FIG. 1 is set at the center of the bent portion 15 in the lateral direction W. A slit-like cut 17 that can penetrate in the thickness direction T is formed on the surface of the central portion in the opening region 16 of the sheet member 2 in accordance with the bending operation of the sheet member 2 (see FIGS. 1 and 2).

  The incision 17 intersects the longitudinal direction L of the sheet member 2 and is formed in the lateral direction W, and the surface of the sheet member 2 is viewed from the thickness direction T toward the one end side of the sheet member 2 in the longitudinal direction L. It is formed in a substantially arc shape in plan view protruding in an arc shape. The width Wi of the notch 17 is formed to be equal to or smaller than the width of the sheet member 2 in the lateral direction W (preferably about 70% or less) (see FIG. 1B).

  A sealing material 18 that is broken and opened in accordance with a bending operation is crimped to the surface in the opening region 16 provided with the cut 17 so as to cover the cut 17 with respect to the surface in the opening region 16 in the sheet member 2. doing.

  The sealing material 18 is composed of an aluminum foil having a thickness of 0.02 mm and a heat-sealable acrylic copolymer coated on both the front and back surfaces of the aluminum foil (see FIG. 2B).

  An adhesive layer 18a made of an adhesive such as a hot melt agent is coated (or applied) substantially uniformly on the back surface side of the sealing material 18 to be pressed against the surface of the sheet member 2. A large number of concave portions 19 and convex portions 20 are provided on the inner surface of the sealing material 18 from the peripheral edge portion 18b so as to be substantially uniform with respect to the entire surface (see FIGS. 1 to 3).

  The sealing material 18 is slightly smaller than the opening region 16 of the folding part 15 and is formed in a size and shape that covers the notch 17 in the opening region 16, and the folding part 15 of the sheet member 2 is folded in a folded state. In this case, a pressure is applied to the surface in the unsealed area 16 that becomes the mountain side so as to cover the notches 17 in the unsealed area 16. The breaking strength of the sealing material 18 is set to a strength that is broken when the bent portion 15 of the sheet member 2 is bent to a predetermined bending angle θ1 or less (see FIG. 4).

  The peripheral edge portion 18 b of the sealing material 18 bites into the surface of the sheet member 2 a predetermined depth D1 toward the inside in the thickness direction T. The biting depth D1 of the peripheral edge portion 18b is set to about 0.1 mm. The height difference D2 between the concave portion 19 and the convex portion 20 is set to a difference included in the range of about 0.1 times to about 10 times, preferably 5 times, based on the thickness of the sealing material 18. (See FIG. 3).

  Between the both ends of the sheet member 2 in the short direction W and the both ends of the cut 17 in the short direction W, folding ruled lines 21 for assisting the folding of the sheet member 2 are provided in the longitudinal direction L of the sheet member 2. And are attached in the short direction W (see FIG. 1).

  The folding and unwrapping package 1A according to the first embodiment projects the seal portions 415 and 416 formed on the outer peripheral edge of the sheet member 2 formed in the shape of a turtle shell, and protrudes obliquely downward and outward from the housing portion 4. When the bent and opened package 1A is placed so that the accommodating portion 4 faces downward with respect to a substantially flat placing portion (not shown) such as a table or a tray, the bent and opened packaging body 1A is directed obliquely outward and downward from the accommodating portion 4. The protruding seal portions 415 and 416 are grounded to the placement portion (see FIG. 2A).

Thereby, since the accommodating part 4 of 1 A of bending opening packaging bodies is supported in the state spaced apart with the predetermined | prescribed space | interval with respect to the mounting part, the outer surface of the film member 3 corresponding to the accommodating part 4 contacts a mounting part. Can be avoided.
As a result, the surface of the film member 3 corresponding to the accommodating portion 4 can be prevented from being stained or damaged, and a clean and hygienic state can be maintained.

  In addition, since the accommodating portion 4 of the folded and opened package 1A is formed on the inner side of the seal portions 415 and 416 protruding outward from the accommodating portion 4 in the sheet member 2, for example, in transportation, transportation and removal, etc. The finger or the object can easily come into contact with the seal portions 415 and 416 protruding outward from the storage portion 4, and it can be avoided that the finger or the object is strongly contacted with the film member 3 corresponding to the storage portion 4.

  As a result, it is possible to reliably prevent a finger or an object of the hand from coming into strong contact with the film member 3 of the housing part 4 or applying a large impact, so that the film member 3 of the housing part 4 is torn. , It is difficult to make a hole, and the contents C accommodated in the accommodating part 4 can be reliably prevented from leaking to the outside.

  Further, when the outer peripheral edge portions of the sheet member 2 and the film member 3 facing each other are thermally welded and sealed, the film member 3 is thermally contracted in the longitudinal direction L and the lateral direction W due to heat at the time of welding. 3 is strained in the longitudinal direction L and the lateral direction W.

  Thereby, for example, wrinkles and waves are hardly formed on the surface of the film member 3 corresponding to the accommodating portion 4 and can be finished to a substantially smooth surface, so that the folded opened packaging body 1A is folded in a folded state. At the time, or when it is held by hand, not only a good touch feeling is obtained, but the contents C are not easily left in the accommodating part 4, and almost all the contents C can be reliably taken out from the accommodating part 4. .

The taking-out method at the time of taking out the contents C from the above-mentioned folding opening packaging body 1A is demonstrated.
First, a finger of a hand is hung on both edges of the short side of the package body 1a that protrudes outward from the accommodating portion 4 of the sheet member 2, so that the cut 17 of the sheet member 2 faces downward. After being held in the state, the package body 1a is started to be folded in a folded state in the bending direction G (see FIG. 4A).

  When the bent portion 15 of the sheet member 2 is bent to a predetermined bending angle θ1 or less, the sealing material 18 crimped to the opening region 16 of the bent portion 15 is broken and opened, and the bent portion 15 is also opened. The notch 17 is penetrated in the thickness direction T, and the notch 17 of the sheet member 2 is communicated with the accommodating portion 4 of the package body 1a (see FIG. 4A).

  Thereby, since the accommodating part 4 is gradually crushed with the operation | movement which bends the folding opening packaging body 1A in a two-fold state, the content C accommodated in the accommodating part 4 can be taken out so that it may extrude from the notch 17. (See FIG. 4 (b) and FIG. 5).

  When the folded portion 15 of the sheet member 2 is folded in half, the tongue piece 17a of the notch 17 protrudes obliquely downward on the lower side, and the contents C are pushed out while contacting the tongue piece 17a. The enclosed contents C are difficult to be pushed out at once, and the contents C can be prevented from scattering around (see FIGS. 4B and 5).

  As a result, the contents C accommodated in the accommodating portion 4 can be smoothly taken out from the cuts 17 of the sheet member 2 without touching the film member 3 corresponding to the accommodating portion 4 in the folded open package 1A.

  In addition, the sealing by the sealing material 18 is not released until the folded opening package 1A is bent to a predetermined folding angle θ1 or less, and the contents C stored in the storage portion 4 leak to the outside. Can be prevented, and the state sealed by the sealing material 18 can be reliably maintained.

  Furthermore, when the unopened folded and unwrapped packaging body 1A is stacked up and down with the housing portion 4 facing downward, the stacking position of the folded and opened packaging body 1A is unlikely to shift in the short direction W, and a plurality of folding The bent-open package 1A can be transported or transported in a lump while being stacked.

  This improves the workability when the folded unwrapped package 1A is housed in a case (not shown), transported or transported, and the storage space for storing the folded unwrapped package 1A is small (see FIG. 6).

The manufacturing apparatus 40 which manufactures the bending opening packaging body 1A comprised as mentioned above is demonstrated.
FIG. 7 is an explanatory view of a sheet base material manufacturing apparatus 401 and a manufacturing method for manufacturing a sheet base material 222 as a base material of the sheet member 2, and FIG. 8 is a diagram in which the sheet base material 222 and the film base material 333 are bonded together and bent. It is explanatory drawing of the manufacturing apparatus 402 and manufacturing method which manufacture 1A of open packaging bodies.

  FIG. 9 is an explanatory view of a vertical sealing device 45 that vertically seals the base materials 222 and 333 in the longitudinal direction L. FIG. 10 is an explanatory view of a horizontal sealing device 47 that laterally seals the base materials 222 and 333 in the short direction W. FIG. 11 is an explanatory diagram of the cutting device 48 that separates the tubular package 414 into individual folded-open packages 1A.

  The manufacturing apparatus 40 of the present invention is configured by bonding a sheet base material manufacturing apparatus 401 that manufactures a sheet base material 222 to which the sealing material 18 is pressure-bonded, a sheet base material 222 and a film base material 333, and then folding and opening the package. And a packaging body manufacturing apparatus 402 for manufacturing 1A (see FIGS. 7 and 8).

The sheet base material manufacturing apparatus 401 cuts and separates the sealing material 18 from the sealing base material 180 and the cutting attachment device 411 in the cutting attachment step a for attaching the slit-shaped incision 17 to the sheet base material 222, and also performs the cutting. 17 is provided with a press-bonding device 412 in the press-bonding process b for press-bonding to the sheet base material 222 so as to cover 17 (see FIG. 7).
The sealing base material 180 is formed to be narrower than the width of the sheet base material 222 in the lateral direction W, and is formed to have a width that covers the cuts 17.

A manufacturing method for manufacturing the sheet base material 222 using the above-described sheet base material manufacturing apparatus 401 will be described.
The manufacturing method for manufacturing the sheet base material 222 includes a notch attaching step a in which the notch 17 having a substantially arc shape in plan view is attached to the synthetic resin sheet base material 222 formed in a belt shape by the notch attaching device 411, and a belt shape. The sealing base material 180 made of aluminum foil is cut and separated into a size and shape that covers the notch 17 of the sheet base material 222, and the sealing material 18 that has been cut and separated from the sealing base material 180 is cut into the sheet base. A press-clamping step b for crimping the surface of the material 222 by a press-clamping device 412 so as to cover the cut 17 and the remaining waste base material 180a from which the sealing material 18 is separated are wound into a roll and collected. The waste material collecting step c to be performed and the base material winding step d for winding the sheet base material 222 to which the sealing material 18 is pressure-bonded into a roll shape are performed in this order (see FIG. 7).

  In the cutting attachment step a, the belt-like sheet base material 222 fed out from the sheet loading unit 201 is transferred to the cutting attachment device 411 while being conveyed at a constant speed in the feeding direction F (longitudinal direction L). The notch attaching device 411 attaches the slit-like notch 17 to the central portion in the short direction W of the sheet base material 222 and attaches the slit base material 222 in the longitudinal direction L of the sheet base material 222 with a predetermined interval (see FIG. 7). .

  In the press-fit crimping step b, the band-shaped sealing substrate 180 fed out from the sealing material loading unit 181 is overlapped so that the notch 17 is covered with the center surface of the sheet substrate 222 in the short direction W. At the same time, the sheet base material 222 is transferred to the pressing and crimping apparatus 412 while being conveyed at a constant speed in the feeding direction F in synchronization with the feeding speed of the sheet substrate 222 (see FIG. 7).

  When the sealing substrate 180 is superposed on the surface side of the sheet substrate 222, the press-bonding device 412 separates the sealing substrate 180 into a size and shape that covers the cut 17 of the sheet substrate 222, and also seals the sealing substrate. The sealing material 18 pressed and separated from 180 is pressed against the surface of the sheet base material 222 so as to cover the cuts 17 (see FIG. 7).

When the sealing material 18 is pressure-bonded to the sheet base material 222, the concave portion 19 and the convex portion 20 are provided substantially uniformly on the inner surface of the peripheral portion 18b of the sealing material 18, and the peripheral edge of the sealing material 18 The part 18b is made to bite into the surface of the sheet base material 222 by a predetermined depth D1 (see FIG. 7).
Thereby, the sheet | seat base material 222 to which the sealing material 18 used for the sheet | seat member 2 of 1 A of bending opening package bodies was crimped | bonded can be manufactured continuously.

  The remaining waste base material 180a from which the sealing material 18 has been separated is wound and collected in a roll shape in the waste material collection step c. The sheet base material 222 to which the sealing material 18 is pressure-bonded is wound into a roll in the base material winding step d (see FIG. 7).

  The package manufacturing apparatus 402 includes a sheet supply device 41 that supplies a belt-shaped sheet base material 222 to which the sealing material 18 is pressure-bonded, a film supply device 42 that supplies a belt-shaped film base material 333, and base materials 222 and 333. Alignment device 43 in the superimposition step e that superimposes each other while vertically feeding them in the feed direction F, and width adjustment in a width adjustment step f in which the base material 333 is aligned while being vertically fed in the feed direction F Device 44, longitudinal sealing device 45 in longitudinal sealing step g for heat-sealing while vertically feeding portions on both sides of base materials 222 and 333 that are overlapped in longitudinal direction L, and in longitudinally sealed cylindrical package 414 The filling device 46 in the filling step h for filling a predetermined amount of the contents C from above, and the horizontal sealing method for heat-sealing the portion of the cylindrical package 414 that is overlapped in the short direction W a horizontal sealing device 47 of i, and a cutting device 48 of a cutting step j for separating the cylindrical package body 414 filled with a predetermined amount of contents C into individual folded opened packages 1A (see FIG. 8 to FIG. 11).

  The sheet supply device 41 includes a roll loading unit 41a that winds and loads a sheet base material 222 formed in a band shape into a roll shape. The film supply apparatus 42 includes a roll loading unit 42a that loads a film base material 333 formed in a belt shape by winding it into a roll shape (see FIGS. 8 and 9).

  The superimposing device 43 superimposes the sheet base material 222 fed from the roll loading unit 41a of the sheet supply device 41 and the film base material 333 fed from the roll loading unit 42a of the film supply device 42 in the feeding direction F. A pair of feed rolls 431 that feed vertically is provided (see FIGS. 8 and 9).

  A pair of feed rolls 431 are rotated in synchronization with the feed direction F by a motor (not shown), and a back surface opposite to the surface on which the sealing material 18 of the sheet base material 222 fed out from the sheet loading unit 210 is pressure-bonded, The inner surface of the accommodating portion 4 of the film base 333 fed out from the film loading unit 310 and the corresponding surface are overlapped with each other, and a predetermined feed is made in the feed direction F while the bases 222 and 333 are overlapped with each other. Vertical feed is performed at a speed (about 7 m / min) (see FIGS. 8 and 9).

  The width adjusting device 44 includes a width adjusting member 441 that adjusts the base material 222 toward the center in the short direction W. The width aligning member 441 is disposed immediately before the longitudinal sealing step g so as to face both edges of the long side of the base material 222 that is vertically fed by the overlapping device 43 (see FIGS. 8 and 9).

  On the opposing surfaces of the width adjusting members 441, width adjusting grooves 742 with which both edges of the long side of the base material 222 are in contact are formed vertically in the feed direction F. The opposing surfaces of the width-aligning grooves 742 are formed so as to gradually become narrower from the upper end side toward the lower end side (see the enlarged view of the portion b in FIG. 9).

  The vertical sealing device 45 includes a pair of vertical sealing rolls 451 that heat-seal the portions on both sides of the base materials 222 and 333 that are overlapped with each other at both ends in the short direction W in the longitudinal direction L (FIG. 8). (See FIG. 9).

  One vertical seal roll 451 is disposed on the side corresponding to one base material 222 among the base materials 222 and 333 (left side shown in FIGS. 8 and 9). The other vertical seal roll 451 is disposed on the side corresponding to the other base material 333 (the right side shown in FIGS. 8 and 9).

  On the circumferential surface of the central portion in the axial direction of the vertical seal roll 451, a concave groove 452 is formed continuously in the circumferential direction so as to avoid pressing against the accommodating portion 4 described later. Longitudinal pressing portions 453 and 454 are formed continuously in the circumferential direction on the circumferential surfaces of both ends in the axial direction of the vertical seal roll 451 to heat-seal the portions on both sides of the base materials 222 and 333 that are overlapped in the longitudinal direction L. doing. (See FIGS. 8 and 9).

  The vertical pressing portion 453 of one vertical seal roll 451 is formed on a slope or a curved surface whose outer diameter gradually decreases from both axial end portions toward the central portion. The vertical pressing portion 454 of the other vertical seal roll 451 is formed on an inclined surface or a curved surface whose outer diameter gradually increases from both axial end portions toward the central portion (see an enlarged view of the portion c in FIG. 9).

  The filling device 46 includes a filling tube 461 for filling the contents C into the cylindrical package 414 that is vertically sealed by the vertical sealing device 45. The main body of the filling device 46 is disposed above the pair of feed rolls 431 (see FIGS. 8 and 9).

  The upper end of the filling pipe 461 suspended from the filling device 46 is connected to an accommodation supply source (not shown). The lower end of the filling tube 461 is inserted perpendicularly to the central portion of the cylindrical package 414 formed in a cylindrical shape by the vertical sealing device 45 (see FIGS. 8 and 9).

  The horizontal sealing device 47 includes a pair of horizontal sealing rolls 471 that heat-seal the overlapping portion of the base materials 222 and 333 in the tubular package 414 in the short direction W. One horizontal seal roll 471 is arranged on the side corresponding to one base material 222 among the base materials 222 and 333 (the left side shown in FIGS. 8 and 10). The other horizontal seal roll 471 is arranged on the side corresponding to the other base material 333 (the right side shown in FIGS. 8 and 10).

  On the peripheral surface of the lateral seal roll 471, a lateral pressing portion 472 that heat-seals the overlapped portion of the base materials 222 and 333 in the lateral direction W protrudes in the radially outward direction and is folded for one piece. A plurality of the bent unwrapped packages 1A are arranged in the circumferential direction at intervals corresponding to the entire length (see FIGS. 8 and 10).

  On the peripheral surface between the lateral pressing portions 472 of the lateral seal roll 471, a concave groove portion 473 is formed so as to avoid pressing against the accommodating portion 4 described later. The lateral pressing portion 472 of one and the other lateral sealing roll 471 has a convex sheet pressing portion 474 that presses the laterally sealed portion of the base material 222 and a concave shape that presses the laterally sealed portion of the base material 333. The film pressing portion 475 is formed (see FIGS. 8 and 10).

  The sheet pressing portion 474 is formed in a substantially arc shape in cross section that protrudes in a convex shape in the direction in which the base materials 222 and 333 are overlapped with each other. The film pressing part 475 is formed in a substantially arc-shaped cross-section that is recessed in a concave shape toward the direction opposite to the direction in which the base materials 222 and 333 are overlapped with each other (see the enlarged view of the part d in FIG. 10).

  The dividing device 48 includes a rotary rotary blade 481 that divides the cylindrical package 414 vertically and laterally sealed by the above-described sealing devices 45 and 47 into individual folded and opened packages 1A, and a rotary blade 481. And a receiving roll 484 facing each other (see FIGS. 8 and 11).

  Disc-shaped vertical blades 482 that divide the seal portion 415 of the cylindrical package body 414 in the longitudinal direction L are continuously formed in the circumferential direction on the circumferential surfaces of both end portions in the axial direction of the rotary blade 481. Corresponding to the seal portion 416 of the cylindrical package body 414, the horizontal blade 483 that divides the seal portion 416 of the cylindrical package body 414 in the short direction W perpendicular to the longitudinal direction L corresponds to the circumferential surface of the central portion in the axial direction. A plurality of them are arranged at predetermined intervals in the circumferential direction (see FIGS. 8 and 11).

  Below the cutting device 48, there is disposed a cut piece collection portion 486 that collects the cut piece 417 after the folded open packaging body 1A is separated from the cylindrical package body 414 by the cutting device 48 in a roll shape. (See FIGS. 8 and 11).

The manufacturing method which manufactures 1A of bending open packaging bodies using the above-mentioned packaging body manufacturing apparatus 402 is demonstrated.
In the manufacturing method for manufacturing the folded and opened package 1 </ b> A, the sheet base material 222 and the film base material 333 supplied from the supply devices 41 and 42 are mutually fed while being vertically fed in the feed direction F by the overlapping device 43. The superimposing step e for superimposing, the width aligning step f for aligning the base material 222 toward the central portion in the short direction W by the width aligning device 44, and the longitudinal direction L between the base materials 222 and 333 were superimposed. A vertical sealing step g for heat-sealing in the longitudinal direction L while vertically feeding the portions on both sides by the vertical sealing device 45, and a filling device 46 for filling a predetermined amount of contents C into the vertically sealed cylindrical package 414. A filling step h for filling in the horizontal direction, a horizontal sealing step i for heat-sealing the portion of the tubular package 414 in the short side direction W in the short side direction W with a horizontal sealing device 47, a vertical seal and a horizontal seal A dividing step j of separating Le has been the tubular wrapper 414 in the cutting apparatus 48 into individual folded unsealed package 1A, performed in this order (see FIGS. 8 to 11).

  In the superimposing step e, the sheet base material 222 and the film base material 333 supplied from the supply devices 41 and 42 are combined with the back surface of the sheet base material 222 opposite to the surface on which the sealing material 18 is attached, and the film base. In the material 333, the inner surface of the accommodating portion 4 and the corresponding surface are overlapped and sandwiched from above between the pair of feed rolls 431 in the overlapping device 43, and the pair of base materials 222 and 333 are overlapped with each other. The feed roll 431 rotates to feed in the feed direction F and is supplied to the width aligning device 44 in the width aligning step f (see FIGS. 8 and 9).

  In the width aligning step f, both long side edges of the base material 222 on which the base material 333 is overlapped are inserted from above into the space between the opposing width aligning grooves 742 of the width aligning member 441 in the width aligning device 44, and While longitudinally feeding the base materials 222 and 333 toward the feed direction F, both the long side edges of the base material 222 are gradually brought closer to the center portion in the short direction W (FIGS. 8 and 9). reference).

  As a result, the base material 222 is deformed into a substantially arc-shaped cross-section projecting in a direction opposite to the direction in which the base materials 222 and 333 are overlapped, and the base material 222 and 333 are overlapped with each other and vertically sealed. It supplies to the vertical sealing device 45 of the process g (refer FIG. 8, FIG. 9).

  In the vertical sealing step g, both long side edges of the base materials 222 and 333 supplied from the width adjusting step f are sandwiched from above between a pair of vertical sealing rolls 451 in the vertical sealing device 45 (see FIG. 8, see FIG.

  While the base materials 222 and 333 are overlapped with each other, the pair of vertical seal rolls 451 are rotated in the feed direction F by the rotation of the pair of vertical seal rolls 451, and the portions on both sides overlapped in the longitudinal direction L of the base materials 222 and 333 are overlapped. They are pressed by the vertical pressing portions 453 and 454 of the pair of vertical seal rolls 451 (see FIGS. 8 and 9).

  Both long side edges of one base material 222 are heated to about 70 ° C. by a vertical pressing part 453 of one vertical seal roll 451, and both long side edges of the other base material 333 are heated to the other vertical side. Heated to about 130 ° C. by the vertical pressing portion 454 of the seal roll 451, and welded in the longitudinal direction L (feeding direction F) to vertically seal both sides of the base materials 222 and 333 that are overlapped in the longitudinal direction L. (See FIGS. 8 and 9).

  As a result, the seal portion 415 is continuously formed in the longitudinal direction L with respect to the overlapping portions on both sides of the base materials 222 and 333, and the overlapping portions on both sides of the base materials 222 and 333 are vertically sealed. The cylindrical tubular packaging body 414 is continuously supplied in the longitudinal direction L and supplied to the lateral sealing device 47 in the lateral sealing step i (see FIGS. 8 and 9).

  In the filling process h, the contents C supplied from the filling tube 461 of the filling device 46 are filled with the contents C while filling the cylindrical package body 414 formed in the cylindrical shape in the vertical sealing process g from above. The cylindrical package body 414 thus prepared is supplied to the horizontal sealing device 47 in the horizontal sealing step c (see FIGS. 8 and 9).

  In the horizontal sealing step i, the vertically sealed cylindrical package 414 supplied from the vertical sealing step b is sandwiched from above between a pair of horizontal sealing rolls 471 in the horizontal sealing device 47 and a pair of horizontal sealings The roll 471 rotates to feed in the feed direction F (see FIGS. 8 and 10).

  A portion of the tubular package 414 that is overlapped in the short direction W between the base materials 222 and 333 is a sheet pressing portion 474 of one horizontal seal roll 471 and a film pressing portion 475 of the other horizontal seal roll 471. The cross-sectional substantially arc which protruded toward the direction opposite to the part which the base material 222 overhang | projected the part overlapped in the transversal direction W of the base materials 222 and 333 pressed by the press parts 474 and 475 The shape is deformed (see FIGS. 8 and 10).

  One substrate 222 is heated to about 70 ° C. by the lateral pressing portion 472 of one lateral seal roll 471, and the other substrate 333 is heated to about 130 ° C. by the lateral pressing portion 472 of the other lateral seal roll 471. Then, the overlapped portions of the base materials 222 and 333 are welded in the lateral direction W while being deformed into a substantially arc shape in cross section and laterally sealed (see FIGS. 8 and 10).

  The cylindrical package body 414 is sequentially fed vertically in the feed direction F by the amount corresponding to the amount of the folded unwrapped package body 1A by the rotation of the pair of horizontal seal rolls 471, and deformed into a substantially arc shape in cross section. The sealed portion 416 is formed in the lateral direction W with respect to the overlapped portion of the base materials 222 and 333 (see FIGS. 8 and 10).

  A large number of bag-like storage portions 4 separated by the seal portion 416 are formed at predetermined intervals in the longitudinal direction L of the cylindrical package body 414, and the cylindrical package body 414 on which the storage portion 4 is formed is divided. It supplies to the cutting device 48 of the process e (refer FIG. 8, FIG. 10).

  In the cutting step e, the vertically sealed and horizontally sealed tubular package 414 supplied from the horizontal sealing step c is sandwiched from above between the rotary blade 481 and the receiving roll 484 in the cutting device 48 and rotated. While vertically feeding in the feed direction F by the rotation of the blade 481 and the receiving roll 484, the seal portions 415 and 416 of the cylindrical package 414 are divided by the vertical blade 482 and the horizontal blade 483 of the rotary blade 481, respectively (FIG. 8). FIG. 11).

  That is, the seal portion 415 in the cylindrical package body 414 is continuously divided in the longitudinal direction L by the vertical blade 482 of the rotary blade 481 and the seal portion 416 in the cylindrical package body 414 is separated from the horizontal blade 483 of the rotary blade 481. Is divided in the lateral direction W in order from the bottom (see FIGS. 8 and 11).

The central portion in the short direction W of the seal portion 415 formed in the overlapping portion on both sides of the tubular package 414 is continuously divided in the longitudinal direction L by the vertical blade 482 of the rotary blade 481, and the tubular package The central portion in the longitudinal direction L of the seal portion 416 formed above and below the housing portion 4 in the body 414 is sequentially divided in a direction orthogonal to the longitudinal direction L by the horizontal blade 483 of the rotary blade 481.
Thereby, the cylindrical package body 414 is separated into individual folded-open package bodies 1A filled with a predetermined amount of the contents C (see FIGS. 8 and 11).

By manufacturing using the above-described manufacturing method, a large number of folded opened packages 1A can be manufactured continuously.
The waste packaging body 417 of the cylindrical packaging body 414 from which the folded opening packaging body 1A is separated is wound and collected in a roll shape.

  Hereinafter, other examples in the above-described folded opened package 1A will be described. In this description, parts that are the same as or equivalent to those in the above configuration are denoted by the same reference numerals, and detailed description thereof is omitted.

(Example 2)
In the first embodiment, the folded open package 1A in which both long side edges of the sheet member 2 are formed in a substantially linear shape has been described. In the second embodiment, as shown in FIG. A description will be given of the folded and opened package 1 </ b> A in which the recessed portions 22 that are recessed in the side edges are formed.

  12A and 12B are explanatory views of the folded and opened package 1A of the second embodiment. Specifically, FIG. 12A is a perspective view of the folded and opened package 1A viewed from obliquely above, and FIG. It is the top view which looked at bending opened packaging body 1A from the surface side.

  1A of folding opening packaging bodies of Example 2 are centering from the both ends of the transversal direction W with respect to the center part of the long side side both edge part corresponding to the bending part 15 in the sheet | seat member 2. It is formed in a concave shape toward the part.

  Since the troughs of the recessed portions 22 formed on both long side edges of the sheet member 2 enter the inner side in the lateral direction W from both long side edges of the sheet member 2, the folded and opened packaging body 1A Is placed so that the accommodating portion 4 faces downward with respect to the substantially flat placement portion, a gap is formed between the depression portion 22 formed on both long side edges of the sheet member 2 and the placement portion. It is easy to be done, and a finger or a nail of a hand can be inserted into the lower side of the folded open packaging body 1A from the recess 22.

As a result, by simply hooking a finger or nail of the hand onto the recess 22 of the sheet member 2, the folded and opened package 1A placed on the substantially flat mounting portion can be easily taken up.
Moreover, since the width of the portion of the sheet member 2 where the recess 22 is formed is narrower than the portion where the recess 22 is not formed, the bending portion 15 is less rigid than the other portions, so The opened package 1A can be easily folded.
Moreover, you may form the hollow part 22 in the center part of the short edge side both edge part in the sheet | seat member 2, and there can exist an effect | action and effect added to Example 1. FIG.

(Example 3)
In the first and second embodiments, the folded and opened package 1A in which the housing portion 4 is formed to be higher than the seal portions 415 and 416 has been described. In the third embodiment, the housing portion 4 is sealed as shown in FIG. A folded and opened package 1A formed at the same height as the portions 415 and 416 will be described.

  FIG. 13 is an explanatory view of the folded and opened package 1A of the third embodiment. Specifically, FIG. 13 (a) shows the outer surface of the film member 3 corresponding to the accommodating portion 4 at the same height as the seal portions 415 and 416. The formed cross-sectional view, FIG. 13B, is a cross-sectional view in which the seal portions 415 and 416 protrude outward from the outer peripheral edge portion of the sheet member 2.

  1A of folding opening packaging bodies of Example 3 have formed the outer surface corresponding to the accommodating part 4 in the film member 3 so that it may become the same height as the seal parts 415 and 416 (refer Fig.13 (a)). Further, the seal portions 415 and 416 may protrude outward from the outer peripheral edge portion of the sheet member 2 (see FIG. 13B).

  Accordingly, a volume capable of accommodating a predetermined amount of the contents C in the accommodating portion 4 can be ensured while maintaining a structure that can be folded in a two-folded state. Actions and effects can be achieved.

  In addition, the folding opening package 1A of FIG.13 (b) formed the sheet | seat member 2 by folding the one sheet | seat member 3 in two, or bonding the two film | membrane members 3 together. It is bonded to one side of the package body 1a.

Example 4
In Examples 1 to 3, one folded unwrapped package 1A has been described. In Example 4, an example in which a plurality of folded unwrapped packages 1A are foldably connected as illustrated in FIG. 14 is described. To do.

  14A and 14B are explanatory views of the folding and unwrapping package 1A of the fourth embodiment. Specifically, FIG. 14A is a plan view of the continuous folding and unwrapping packaging 1A, and FIG. FIG. 3 is a cross-sectional view of the folded unwrapped package 1A folded in a state, divided at the center in the short direction W.

  In the folded unwrapped package 1A of Example 4, the long side edges of adjacent folded unwrapped packages 1A arranged in parallel are connected by a flexible connecting portion 23. The connecting portion 23 is flexibly folded so that the adjacent folded unwrapped packages 1A are folded so that the accommodating portion 4 is inside (see FIGS. 14A and 14B).

  Thereby, since the accommodating part 4 of 1A of folding opening packaging bodies is pinched | interposed inside, the surface of the film member 3 corresponding to the accommodating part 4 becomes dirty or damaged, for example during transportation or transportation. It can be surely prevented and a clean and hygienic state can be maintained.

In addition, since the film member 3 of the housing part 4 is not easily torn or a hole is formed, and the contents C housed in the housing part 4 can be prevented from leaking to the outside, the action added to the first to third embodiments. And there can be an effect.
Note that the contents C can be easily taken out by separating the folded and opened package 1A into one package.

  In the fourth embodiment, the example in which the two folded unwrapped packages 1A are connected so as to be foldable has been described. However, two or more folded unwrapped packages 1A may be connected in a foldable manner. Further, the adjacent short side edges of the two folded unwrapped packages 1A may be connected in a foldable manner.

(Example 5)
In Examples 1 to 4, the folded unwrapped package 1A formed in a substantially rectangular shape in plan view has been described. However, in Example 5, as shown in FIG. 15, it is narrower than the folded unwrapped package 1A of Example 1. The folded open package 1B formed vertically will be described.

  FIG. 15 is an explanatory view of the folded and opened packaging body 1B of Example 5. Specifically, FIG. 15 (a) is a plan view of the folded and opened packaging body 1B, and FIG. 15 (b) is the folded and opened packaging body 1B. 2 is a cross-sectional view taken along the center in the short direction W. FIG.

  When the folded unwrapped packaging body 1B of Example 5 is placed so that the housing portion 4 faces downward with respect to a substantially flat placement portion (not shown), the outer surface of the film member 3 corresponding to the housing portion 4 is It can avoid contacting a mounting part.

  Moreover, since the sealing by the sealing material 18 is not released until it is bent to a predetermined bending angle θ1 or less, it is possible to prevent the contents C stored in the storage portion 4 from leaking to the outside. The effect | action and effect which were added to Examples 1-4 can be show | played.

(Example 6)
In Examples 1 to 5, the folded and opened packaging body 1A having a large curvature radius of the sheet member 2 has been described. In Example 6, as shown in FIG. 16, the folded and opened packaging body having a small curvature radius of the sheet member 2 is used. 1A will be described.
FIG. 16 is a cross-sectional view in which the folded and opened package 1A of Example 5 is divided at the center in the short direction W.

  Since the folding opening packaging body 1A of Example 6 forms the sheet member 2 in a shape having a smaller radius of curvature than the sheet member 2 of Examples 1 to 4, the folding opening packaging body 1A is When the container 4 is placed so as to face downward with respect to the substantially flat mounting part, the film member 3 corresponding to the container 4 is supported in a state of being further spaced from the mounting part.

  As a result, it is possible to more reliably prevent a finger, an object, etc. of the hand from coming into strong contact with the film member 3 of the housing portion 4 or applying a large impact, and the film member 3 may be torn or a hole may be opened. Since it becomes difficult, the effect | action and effect which were added to Examples 1-5 can be show | played.

(Example 7)
In Examples 1 to 6, the folded opening package 1A in which the cut 17 is formed in the width Wi has been described. In Example 7, as shown in FIG. 17, the folded opening in which the cut 17 is formed wider than the width Wi. The package 1A will be described.

  FIG. 17 is an explanatory view of the folded and opened package 1A of Example 7. Specifically, FIG. 17 (a) is a plan view of the folded and opened package 1A from the front side, and FIG. 17 (b) is a folded view. FIG. 17C is a schematic enlarged view of a state in which the cut 17 is opened. FIG.

  In the folded open package 1A of Example 7, the cut 17 is formed wider than the cuts 17 of Examples 1 to 6, so that when the folded open package 1A is folded in a folded state, a sheet is formed. The notch 17 of the member 2 is opened larger (see FIGS. 17B and 17C).

  Thereby, since the granular or tablet-like contents C accommodated in the accommodating part 4 can be easily taken out, and a predetermined amount of the contents C can be taken out smoothly, the actions and effects added to Examples 1 to 6 are achieved. Can play.

(Example 8)
Although Example 1-7 demonstrated the bending opening packaging body 1A formed in planar view substantially rectangular shape, in Example 8, as shown in FIG. 18, the folding opening packaging body 1C formed in planar view substantially rectangular shape. Will be described. FIG. 18 is a plan view of the folded and opened package 1C of the eighth embodiment.

  The folding and unwrapping package 1C of Example 8 is configured such that the recessed portion 22C is centered from both ends in the short-side direction W with respect to the central portion of both long side edges corresponding to the bent portion 15 in the sheet member 2. When the folded and opened package 1C is placed so that the accommodating portion 4 faces downward with respect to the substantially flat placement portion, the finger or nail of the hand is It can be inserted into the lower side of the folded and opened package 1C from the recess 22C.

  As a result, the folded open package 1C placed on the substantially flat mounting portion can be obtained simply by hooking the fingers and nails of the hand into the recessed portions 22C formed on both long side edges of the folded open package 1C. It can be taken up easily. As a result, the effects and effects added to Example 2 can be achieved.

Example 9
In Examples 1 to 7, the folded and opened packages 1A and 1B formed in a substantially rectangular shape in plan view have been described, but in Example 9, the folded and opened package formed in a substantially donut shape in plan view as shown in FIG. The body 1D will be described.

  FIG. 19 is an explanatory view of the folded and opened packaging body 1D of Example 9, in detail, FIG. 19 (a) is a plan view of the folded and opened packaging body 1D, and FIG. 19 (b) is a folded and opened packaging body 1D. It is sectional drawing which divided | segmented in the center part of radial direction.

The folding and unwrapping package 1D of Example 9 superimposes the sheet member 2 and the film member 3 formed in a substantially donut shape in plan view, and has an inner peripheral edge and an outer peripheral edge facing each other between the members 2 and 3. The annular accommodating portion 4 is continuously formed in the circumferential direction between the seal portion 415a formed on the inner peripheral edge portion and the seal portion 416a formed on the outer peripheral edge portion.
The bending part 15, the opening area | region 16, the notch | incision 17, and the sealing material 18 are provided in the surface between the seal part 415a and the seal part 416a in the sheet | seat member 2 (FIG. 15 (a) (b )reference).

  Since the accommodating portion 4 of the folded open package 1D is formed on the inner side of the seal portion 416a that protrudes obliquely downward and outward from the accommodating portion 4 in the sheet member 2, fingers, objects, etc. of the hand are sealed portion 416a. It is easy to come into contact with the film member 3, and it is possible to avoid strong contact with the film member 3 corresponding to the accommodating portion 4.

  In addition, when the folded and opened package 1D is placed so that the accommodating portion 4 faces downward with respect to the substantially flat placement portion, the seal portion 416a that protrudes obliquely downward outward from the accommodating portion 4 is the installation portion. Since the container 4 is grounded and is supported at a predetermined interval with respect to the mounting part, the outer surface of the film member 3 corresponding to the container 4 can be prevented from coming into contact with the mounting part.

  Furthermore, it is possible to easily pick up the folded open package 1A placed on the substantially flat mounting portion by simply hooking the finger of the hand on the seal portion 415a of the sheet member 2 formed in a substantially donut shape in plan view. Therefore, the effect | action and effect which were added to Examples 1-7 can be show | played.

(Example 10)
In Examples 1 to 9, the folded and opened packaging bodies 1A to 1D that open the cuts 17 to a size that allows the liquid or paste-like contents C to be taken out have been described. In Example 10, however, FIG. As described above, the folded and opened package 1E that opens the cut 17 to a size that allows the granular or tablet-like contents C to be taken out will be described.

  FIG. 20 is an explanatory view of the folded and unsealed package 1E of Example 10. Specifically, FIG. 20 (a) is a schematic plan view in which four folded ruled lines 211 are attached to the diagonal lines in addition to the folded ruled lines 21. 20 (b) is a schematic plan view in which two folding ruled lines 212 are provided at the center in the short direction W perpendicular to the folding ruled line 21, and FIG. 20 (c) shows the folded ruled lines 211, 212. FIG. 20D is a schematic plan view in which a plurality of bent ruled lines 212 are provided in the short direction W with a predetermined interval.

  The folded and opened packages 1A to 1D of Examples 1 to 9 are folded in a double-folded state to open the cuts 17, so that the liquid or paste-like contents C can be taken out by being extruded, but are granular. And tablet-like contents C are difficult to take out.

  On the other hand, as shown in FIGS. 20 (a), (b), (c), and (d), in addition to the folding ruled line 21 attached to the sheet member 2, the folded open package 1E of Example 10 includes a plurality of folded opened packaging bodies 1E. Since the folding ruled lines 211 and 212 are attached, when the folded and opened packaging body 1E is folded in a folded state and the cut 17 of the sheet member 2 is opened, the folded and opened packaging body 1E is disposed in the short direction. If it presses and deform | transforms toward the center part from the both ends of W, the notch 17 of the sheet | seat member 2 can be opened in both the longitudinal direction L and the transversal direction W.

  Thereby, since the notch 17 of the sheet member 2 can be opened more greatly, the granular or tablet-like contents C accommodated in the accommodating part 4 can be easily taken out, and a predetermined amount of the contents C can be taken out smoothly. Can do. As a result, the effects and effects added to Examples 1 to 9 can be achieved.

(Example 11)
In Examples 1 to 10, the folded open packaging bodies 1A to 1E that are opened by folding the notch 17 in a double-folded state have been described. However, in Example 11, as shown in FIG. The folded opening package 1A that opens greatly will be described.

  FIG. 21 is an explanatory view of the folded and opened packaging body 1A of Example 11. Specifically, FIG. 21 (a) is a side view of the folded and opened packaging body 1A in which the convex portions 2c are in contact with each other, and FIG. ) Is a side view of the folded and opened packaging body 1A in a state where the notch 17 is opened larger, and FIG. 21 (c) is a side view of another example of the folded and opened packaging body 1A in which the convex portions 2c are in contact with each other. .

  In the folded unwrapped package 1A of Example 11, the convex part 2c having a substantially semicircular shape as viewed from the side that is brought into contact when folded in a double-folded state is formed on the back side facing the folding direction G in the sheet member 2. Two places are provided (see FIG. 21A).

  When the folded package 1A is folded in a folded state, the portion where the convex portions 2c of the sheet member 2 are in contact with each other is used as a fulcrum, and the free end side of the sheet member 2 is used as a power point. Since a large pulling force is applied to the bending portion 15 corresponding to the action point, even if the bending force applied to the force point is small, the notch 17 of the sheet member 2 can be opened larger (see FIG. 21 (b)).

  Thereby, since the granular or tablet-like contents C accommodated in the accommodating part 4 can be easily taken out, and a predetermined amount of the contents C can be taken out smoothly, the actions and effects added to Examples 1 to 10 are achieved. Can play.

Further, the convex portion 2c may be provided at two locations on the back surface side of the sheet member 2 near the bent portion 15 and on the back surface side of the sheet member 2 near the bent portion 15 (FIG. 21 ( c)).
In addition, although Example 11 provided the example which provided the convex part 2c in two places, you may provide one place in any one surface.

In the correspondence between the configuration of the present invention and the embodiment,
The opening part of this invention corresponds to the notch 17 of the embodiment,
Similarly,
The superposition means corresponds to the superposition device 43,
The sealing means corresponds to the vertical sealing device 45 of the first sealing means and the horizontal sealing device 47 of the second sealing means,
The sealing process corresponds to the vertical sealing process g of the first sealing process and the horizontal sealing process i of the second sealing process,
The width adjusting means corresponds to the width adjusting device 44,
The filling means corresponds to the filling device 46,
The dividing means corresponds to the dividing device 48,
The present invention is not limited to the configuration of the above-described embodiment, but can be applied based on the technical idea shown in the claims, and many embodiments can be obtained.

  In the folded open packaging bodies 1A to 1E of Examples 1 to 10, the thickness of the entire sheet member 2 is formed to a thickness included in the range of 0.15 mm to 0.7 mm. You may select the thickness of the sheet | seat member 2 according to the capacity | capacitance of the accommodating part 4 to accommodate, the weight of the content C accommodated in the accommodating part 4, and the magnitude | size and shape of bending opening package 1A-1E.

  Moreover, although the thickness of the whole film member 3 is formed in the thickness included in the range of 0.05 mm-0.15 mm in an Example, it is from the folding opening packaging bodies 1A-1E of Examples 1-10. When used for a package having a large capacity, it is not limited to the above-mentioned wall thickness.

Moreover, although the example which provided the one accommodating part 4 in bending opening packaging body 1A-1E was demonstrated, you may provide the some accommodating part 4 in one folding opening packaging body 1A-1E, for example.
For example, when the contents C that require gas barrier properties, moisture resistance, fragrance and the like are encapsulated, a film made of a material corresponding to the characteristics and properties of the contents C is used in combination.
In addition, when the display content (for example, characters, designs, illustrations, etc.) related to the contents C is printed on the sheet member 2, it is laminated on the sheet member 2 after being printed on a film (not shown) that covers the sheet member 2. Also good.

a ... cutting attachment process b ... press-cut crimping process c ... waste material winding process d ... base material winding process e ... overlapping process f ... width-shifting process g ... vertical sealing process h ... filling process i ... horizontal sealing process j ... Cutting process L ... Longitudinal direction W ... Short direction T ... Thickness direction G ... Bending direction F ... Feeding direction C ... Containment 1A, 1B, 1C, 1D, 1E ... Folded-open package 1a ... Packaging body 2 ... Sheet member 3 ... Film member 4 ... Accommodating part 15 ... Bending part 16 ... Peeling area 17 ... Incision 18 ... Sealing material 19 ... Concavity 20 ... Convex part 21,21,212 ... Folding ruled line 22,22C ... Depression part DESCRIPTION OF SYMBOLS 180 ... Sealing base material 222 ... Sheet base material 333 ... Film base material 40 ... Manufacturing apparatus 401 ... Sheet base material manufacturing apparatus 402 ... Packaging body manufacturing apparatus 411 ... Incision attaching apparatus 412 ... Press-cut crimping apparatus 414 ... Cylindrical packaging body 415 DESCRIPTION OF SYMBOLS 16 ... Seal part 43 ... Overlapping device 431 ... Feeding roll 44 ... Width-adjusting device 441 ... Width-adjusting member 442 ... Width-adjusting groove 45 ... Vertical sealing device 451 ... Vertical sealing roll 452 ... Groove part 453, 454 ... Vertical pressing part 46 ... Filling device 461 ... Filling tube 47 ... Horizontal sealing device 471 ... Horizontal sealing roll 472 ... Horizontal pressing portion 474 ... Sheet pressing portion 475 ... Film pressing portion 48 ... Cutting device 481 ... Rotary blade 482 ... Vertical blade 483 ... Horizontal blade

Claims (19)

A folded unwrapped package with an unsealed portion that is unsealed with the folding operation of the package body,
The package body is
A sheet member that can be folded into a two-fold state in which the opening portion is formed on one surface;
A film member bonded to the other surface of the sheet member;
It is comprised by the accommodating part which accommodates the contents formed between the sheet member and the opposing surfaces of the film member,
The sheet member is
A folded unwrapped package formed in a shape projecting in a direction opposite to the direction in which the sheet member and the film member are overlapped. The edge part which at least opposes among the outer peripheral edge parts formed outside the storage part in the sheet member,
The folded unwrapped package according to claim 1, wherein the folded folded package projects in a direction opposite to the protruding portion of the sheet member. The difference in height between the center portion of the protruding portion of the sheet member and the outer peripheral edge portion protruding outward from the accommodating portion of the sheet member,
3. The method according to claim 1, wherein the sheet member is formed to have a height difference included in a range of about 3% to about 30% based on a dimension of one of a longitudinal direction and a short side method of the sheet member. Fold-open package. The difference in height between the protruding portion of the sheet member and the outer peripheral edge portion that protrudes outward from the housing portion of the sheet member,
The folded open package according to any one of claims 1 to 3, wherein the folded open package is formed to have a protruding dimension included in a range of about 3 times to about 30 times based on a thickness of the sheet member. The area of the unjoined portion corresponding to the housing portion in the film member is
The folded and opened package according to any one of claims 1 to 4, wherein the folded and opened package is formed in an area included in a range of about 10% to about 90% based on an area of the entire sheet member. In the edge part which opposes at least among the outer peripheral edge parts projected outside the storage part in the sheet member,
The folded open packaging body according to any one of claims 1 to 5, wherein a recessed portion that is recessed in a concave shape from the outer peripheral portion to the central portion of the sheet member is formed. The end portions of the sheet members in the plurality of package bodies arranged in parallel are connected to each other in a foldable manner via flexible connecting portions. Folded package. A sheet base material in which an unsealed part that is opened in accordance with the operation of folding in a folded state is formed on one surface, a film base material that is bonded to the other surface of the sheet member, and a space between the opposing surfaces of the base materials An apparatus for manufacturing a folded unsealed package including a container for filling the contents formed in
An overlapping means for superimposing the film substrate on the other surface of the sheet substrate;
When heat-sealing the peripheral edge portions of the substrates that are overlapped by the overlapping means, the sheet substrate is deformed into a shape that protrudes in a direction opposite to the direction in which the substrates are overlapped. Sealing means to perform,
Filling means for filling the contents with respect to the accommodating portion formed between the opposing surfaces of the base materials when the peripheral edges of the base materials facing each other are heat-sealed by the sealing means;
An apparatus for manufacturing a folded unwrapped package, comprising: a stripping unit that splits a belt-shaped package formed by heat-sealing the substrates into one package filled with the contents. The sealing means comprises:
When heat-sealing both sides of the sheet base material and the film base material that are overlapped in the longitudinal direction, a cross section in which the sheet base material projects in a direction opposite to the direction in which the base materials are overlapped with each other. First sealing means that deforms into a substantially arc shape;
When heat-sealing the portion of the base material that is overlapped in the short direction, the portion of the base material that is overlapped in the short direction protrudes in the direction opposite to the protruding portion of the sheet base material. 9. The apparatus for manufacturing a folded unwrapped package according to claim 8, further comprising a second sealing means that is deformed into a substantially arc shape in cross section. Between the overlapping means and the sealing means,
9. The sheet base material according to claim 8, further comprising width-scaling means that deforms the sheet base material toward a central portion in a short direction and deforms into a shape projecting in a direction opposite to a direction in which the base materials are overlapped with each other. Or the manufacturing apparatus of the bending unwrapping package of 9. The first sealing means comprises:
It is composed of one vertical seal roll arranged on the sheet base material side and the other vertical seal roll arranged on the film base material side,
On the circumferential surfaces at both ends in the axial direction of the one and the other vertical seal rolls,
Longitudinal pressing portions that heat seal the portions on both sides superimposed in the longitudinal direction between the base materials are formed continuously in the circumferential direction,
The vertical pressing portion of one of the vertical seal rolls is formed in a shape in which the outer diameter gradually decreases from both axial ends toward the center,
The bending portion according to any one of claims 8 to 10, wherein the vertical pressing portion of the other vertical sealing roll is formed in a shape in which the outer diameter gradually increases from both axial end portions toward the central portion. Opening package manufacturing equipment. The second sealing means comprises:
It is composed of one horizontal seal roll arranged on the sheet base material side and the other horizontal seal roll arranged on the film base material side,
On the peripheral surface of one of the horizontal seal rolls, a convex sheet pressing portion is formed that presses the sheet base material side in a direction in which the base materials are overlapped with each other.
The concave film press part which presses the said film base material side in the direction where the said base materials were piled up was formed in the surrounding surface of the other said horizontal seal roll, The any one of Claims 8-11 formed. Manufacturing equipment for folded open packaging. The heat seal temperature of the other said vertical seal roll and the said horizontal seal roll was set to high temperature from the heat seal temperature of one of the said vertical seal roll and the said horizontal seal roll, It is any one of Claims 8-12. Manufacturing equipment for folded open packaging. A sheet base material in which an unsealed part that is opened in accordance with the operation of folding in a folded state is formed on one surface, a film base material that is bonded to the other surface of the sheet member, and a space between the opposing surfaces of the base materials A method of manufacturing a folded unsealed packaging body comprising a container for filling the contents formed in
A superposition step comprising a superposition means for superposing the film base material on the other surface of the sheet base material;
When heat-sealing the peripheral edge portions of the substrates that are overlapped in the overlapping step, the sheet substrate is deformed into a shape that protrudes in a direction opposite to the direction in which the substrates are overlapped. A sealing step including a sealing means to perform,
In the sealing step, when heat-sealing the peripheral edge portions facing each other, the filling portion is provided with a filling unit that fills the contents with respect to the housing portion formed between the opposing surfaces of the base materials. Process,
Folding-open packaging body for performing in this order a dividing step provided with a dividing means for dividing the band-shaped packaging body formed by heat-sealing the base materials into one packaging body filled with the contents Manufacturing method. The sealing step includes
When heat-sealing both sides of the sheet base material and the film base material that are overlapped in the longitudinal direction, a cross section in which the sheet base material projects in a direction opposite to the direction in which the base materials are overlapped with each other. A first sealing step including first sealing means that deforms into a substantially arc shape;
When heat-sealing the portion of the cylindrical package formed in the first sealing step that is overlapped in the short direction, the portion of the sheet base that is overlapped in the short direction of the base materials is projected. The method for producing a folded unwrapped package according to claim 14, comprising a second sealing step comprising a second sealing means that is deformed into a substantially arcuate cross-section projecting in a direction opposite to the opposite portion. Between the overlapping process and the sealing process,
Width-shifting step provided with width-spacing means for deforming the sheet base material toward the central portion in the short direction and deforming into a shape projecting in a direction opposite to the direction in which the base materials are overlapped with each other. The manufacturing method of the bending opening packaging body of Claim 14 or 15 by which is arrange | positioned. The first sealing means comprises:
It is composed of one vertical seal roll arranged on the sheet base material side and the other vertical seal roll arranged on the film base material side,
On the circumferential surfaces at both ends in the axial direction of the one and the other vertical seal rolls,
Longitudinal pressing portions that heat seal the portions on both sides superimposed in the longitudinal direction between the base materials are formed continuously in the circumferential direction,
The vertical pressing portion of one of the vertical seal rolls is formed in a shape in which the outer diameter gradually decreases from both axial ends toward the center,
The bending portion according to any one of claims 14 to 16, wherein the vertical pressing portion of the other vertical sealing roll is formed in a shape in which the outer diameter gradually increases from both axial end portions toward the central portion. A method for manufacturing an open package. The second sealing means comprises:
It is composed of one horizontal seal roll arranged on the sheet base material side and the other horizontal seal roll arranged on the film base material side,
On the peripheral surface of one of the horizontal seal rolls, a convex sheet pressing portion is formed that presses the sheet base material side in a direction in which the base materials are overlapped with each other.
The concave film press part which presses the said film base material side in the direction in which the said base materials were piled up was formed in the surrounding surface of the other said horizontal seal roll, It is any one of Claims 14-17 Manufacturing method of a folded open packaging body. The heat seal temperature of the other said vertical seal roll and the said horizontal seal roll was set to high temperature from the heat seal temperature of one of the said vertical seal roll and the said horizontal seal roll to high temperature. Manufacturing method of a folded open packaging body.

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