JP2007161289A - Bag with spout part - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a bag with a spout part which exhibits good unsealing properties and opening properties of the spout part and has no possibility of closing the spout part and the vicinity of its base part during spouting in a field of the bag with the spout part provided with a spout part with a narrow width by heat sealing. <P>SOLUTION: In the bag 100 with the spout part, the spout part 50 with a narrow width is provided by heat sealing on a part of the upper part of the bag, and both sides thereof are cut off by acute angles by leaving a heat sealing part with a required width, and an unsealing means is provided at an unsealing position of the spout part. In addition, a first embossed part for supporting its opening and preventing bending is provided into a rod-like shape with an appropriate width and height toward the inner part of the bag from the tip part of the spout part. On the underside of the base part of the spout part, a second embossed part for supporting extending of the films of both faces on this part to the outside and preventing closing during spouting the content is provided into a rod-like shape with an appropriate width and height so that a space between its two ends is wider than the width of the base part of the spout part and forms a downward circular arc-like shape or V-shape. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a bag with a spout portion, and more specifically, when a content having fluidity is sealed and packaged, and the content is used, a narrow width formed by heat sealing at a part of the upper portion of the bag. In a bag with a spout part that is used by opening the spout part and transferring to another container etc., the spout part can be easily opened and the opened spout part can be easily opened. The present invention relates to a bag with a spout part that can smoothly pour out and transfer the contents to the end without clogging the spout part in the middle of pouring.

Conventionally, when the contents having fluidity such as liquid are sealed and packaged, and the contents are used, as a bag with a spout part that is used by being transferred to another container such as a bottle, other contents It is desirable that the transfer to the container can be performed easily and safely, and at the same time, it is desirable that the empty bag is not bulky and can be easily disposed of after use. Many bags with a spout portion provided with a narrow spout portion are adopted.
However, such a bag with a spout part has a common disadvantage, because the width of the spout part is narrow, the opening property of the opened spout part is poor, and even if the spout part is opened, the spout part is Since it is formed of the same flexible material as the bag body, there is a problem that the spout portion opened in the middle of the content pouring is easily blocked due to poor rigidity.

In order to solve such problems, the shape of the spout portion is variously devised, and the spout portion or the spout portion provided with an embossed portion in various patterns from the spout portion toward the inside of the bag A bag has been proposed.
As a specific example of such a bag with a spout portion, for example, (1) a laminated film is heat-sealed in a bag shape, the outer edge portion is heat-sealed at the upper corner portion, and notches are provided on both sides In a pouch provided with a narrow outlet port that faces diagonally upward, the inner lines of the heat seal part on both sides of the outlet part are parallel on both sides of the liquid passage from the tip side to the base part of the outlet part. Alternatively, the taper angle (α) is formed so as to have an inclination of 10 ° or less, and is further folded outward at the base of the spout part, one toward the upper end of the pouch and the other toward the side end of the pouch, Both are formed in a shape where the folding angle (β) forms an acute angle of 45 ° to 65 °, and a bulging portion convex outward is formed in a region including at least the liquid passage of the spout portion of the laminated film on both sides. Outlet part of the provided configuration There is a bag (see Patent Document 1).

(2) A standing pouch-type pouch in which fluid contents are sealed and packaged, and the outer corner, that is, the tip, both sides, and both shoulders are formed at the upper corner of the pouch. A spout portion having an upwardly-shaped shape that is heat-sealed and provided with notches on both sides of the spout portion, and further, on at least one wall film of the pouch, from the spout portion To the position near the corner of the pouch bottom on the opposite side of the spout portion, the spout portion has a large width and height, gradually decreases in width and height toward the lower side, and at the bottom, has a substantially constant width. There is a bag with a spout portion having a configuration in which a curved bulge portion having a height is provided so that the upper surface and both side surfaces thereof are planar, that is, each section has a trapezoidal shape (Patent Document) 2).
JP 2004-1867 A (2nd to 7th pages, FIGS. 1 to 9) Japanese Unexamined Patent Publication No. 2000-85801 (pages 2 to 4, FIGS. 1 and 2)

According to the bag with the spout part of the invention described in the above (1), when the content filled in the pouch is transferred to a container having a small diameter such as a bottle, the tip part of the spout part is cut off. By opening, the opened spout part can be naturally opened with good shape retention by the bulge part provided in that part, and can be inserted into the mouth part of the bottle with a sufficient depth. The shape of the outlet part and the notches provided on both sides of the outlet part can prevent the opened outlet part from being blocked during the extraction of the contents, so the contents can be transferred safely and easily. Can do.
However, even in such a bag with a spout part, when the contents are poured out, the shape of the spout part seal part, that is, the heat seal part on both sides of the spout part and the fold back from the base part to both outsides. Depending on the shape, it opens in a stable cylindrical shape up to the spout portion and the vicinity of the base portion, but in the region further inside the bag from the base portion of the spout portion, along the extension line of the heat seal portion on both sides of the spout portion Then, since the laminated film on both sides approaches the two strips and a valley is formed, the flow to the spout part of the contents is partially hindered in this part, especially in the second half of the pouring, There was a problem that it was difficult to pour out the contents.

Moreover, according to the bag with the spout part of the invention described in the above (2), when the content filled in the pouch is transferred to another container, the front end part of the spout part is cut off and the spout part Since the bulging part is provided from the spout part to a position near the pouch bottom corner part on the opposite side of the spout part, the spout part automatically opens and the spout part Even from the base portion to the inside of the pouch, the swelled portion allows the laminated films on both sides to easily spread back and forth so that the contents can be easily flowed to and poured out from the spout portion.
However, even in such a bag with a spout part, the heat seal part of the spout part bends outward from the side part 12 to the shoulder part 13 on both sides, and the shoulder parts 13 on both sides have a substantially square shape with the lower part greatly expanded. In particular, when the contents are poured out by pressing the bag with high-viscosity contents, between the upper parts of the heat-seal line of the C-shaped shoulder part Thus, there is a problem that the laminated films on both sides approach each other so as to be bent, and the spout part is likely to be blocked near the base part.

  The present invention has been made to solve such problems, and the problem is that when the contents having fluidity such as liquid are sealed and used, the upper part of the bag is used. It is easy to open the spout part in the field of a bag with a spout part that is used by opening the narrow spout part formed by heat sealing in a part of the bottle and transferring it to other containers such as bottles. In addition, the opening property of the opened spout part and its shape retention are good, and when the contents are poured out, it is closer to the inner side of the bag than the spout part, the base part of the spout part, or the base part of the spout part. An object of the present invention is to provide a bag with a spout portion with high productivity that can safely and easily pour out contents without closing the pouring path at a position or the like.

The above problems can be solved by the following present invention.
That is, the invention described in claim 1 is a laminated film bag provided with a narrow-width spout part formed by heat-sealing the outer periphery of a part of the upper part of the bag, in the vicinity of the tip part of the spout part. An opening means is provided at the unsealing position, and the first embossed portion that assists the opening of the spout portion and prevents its bending from the vicinity of the front end portion of the spout portion toward the inside of the bag is suitable. Provided in the form of a rod having a width and height, and when the contents are poured out to the lower side of the base of the spout port, this part assists the outside of the laminated film on both sides, The second embossed portion for preventing the clogging of this portion due to the adhesion between the laminated films is appropriate so that both ends thereof are wider than the width of the base portion of the spout portion and have a downward arc shape or V shape. It is characterized by being provided in the shape of a rod with a width and height Note consists of the outlet portion with a bag.

In the present invention, the form of the bag body is not particularly limited. In addition to a flat bag such as a four-side seal type or a three-side seal type, a bag having a self-supporting type represented by a standing pouch can be used. Any bag may be used as long as the bag can form a narrow spout portion by heat sealing. Among these, standing pouches are particularly preferable because they are excellent in self-supporting property and have a good appearance, facilitate handling of the bag after the content-filled seal, and are excellent in display effect in stores.
Moreover, it is preferable to provide a notch part on both sides of the spout part, leaving a heat seal part having a predetermined width, and to form a shape in which the spout part protrudes.

The opening means provided at the opening position near the tip of the spout part may be an opening instruction line such as a cut line by printing, an opening instruction mark, a character, etc., but in combination with these, opening by tearing etc. is easy It is more preferable to provide easy-opening means such as notches and half-cut lines.
When the half-cut line is provided, it can be provided by mechanical means using a blade, but in order to stably provide the depth at a desired depth, it is more preferable to use a method by laser light irradiation.
The number of half-cut lines may be one, but assuming that the tearing direction is deviated, a plurality of half-cut lines such as one or two on each side of the center half-cut line are parallel, or It can be provided in a shape that converges to the center half-cut line, or a shape that includes a parallel half-cut line and a half-cut line that obliquely intersects it.
When a notch is provided, a generally used one-letter or V-shaped notch may be used, but there is a risk of injury to the hand when the corner after opening the spout portion using the notch becomes an acute angle. In addition, it is preferable to provide a shape with an obtuse corner or a round shape.
In addition, the first and second bar-shaped embossed portions may be provided in a shape in which both of them intersect and are integrated with each other, or one or both of them are separated at the intersecting portion. May be provided. Such first and second bar-shaped embossed portions may be provided only on the laminated film on one side of the bag, but more preferably on the laminated film on both sides of the bag.

  The invention described in claim 2 is characterized in that the first and second bar-shaped embossed portions are formed such that the upper portion is formed in a flat shape and the side portions on both sides are formed in an inclined surface shape. It consists of a bag with the described spout part.

  The invention described in claim 3 is characterized in that the first bar-shaped embossed portion has a wide portion whose width is expanded in a circular shape at a position near the base portion of the spout portion. It consists of a bag with a spout part as described in 1.

The invention described in claim 4 comprises the bag with spout portion according to any one of claims 1 to 3, wherein the bag is formed in a form having self-supporting properties.
The method of forming the bag into a self-supporting type is, for example, inserting the bottom portion of the bag between the lower part of the laminated film on the front and rear wall surfaces by folding the bottom film inward, and surrounding edge portions thereof. Although it may be formed in a form having a gusset portion formed by heat sealing, it is more preferable to form in a standing pouch form that is excellent in appearance and independence.

In the standing pouch type, the bottom portion of the bag is formed in a form having a gusset portion formed by inserting the bottom film inwardly between the lower portions of the laminated films on the front and rear wall surfaces and being folded inwardly. In the vicinity of the bottom of both sides of the bottom film, a semi-circular spot-like bottom film cutout is provided, and the gusset is sealed in a curved line from the both sides to the center. It is formed by heat sealing with a pattern, and by forming the bottom part of the bag in this way, when filling the contents, the bottom part of the bag spreads back and forth and a bottom surface close to flat is formed, and the bottom part Since the leg part by the heat seal part is formed on the outer periphery of the bag, it is excellent in appearance and at the same time, the bag is provided with excellent independence.
The ship-bottom seal pattern that heat-seals the gusset part is a ship-bottom-shaped seal pattern in which the inner side is concave in a curved line shape from both sides to the center part, and the inner center part is low with a predetermined width. Further, it may be a bottom-bottom seal pattern that increases linearly with an inclination from both ends to the sides on both sides of the bag.

  According to the invention described in claim 1, since the bag with the spout portion is configured as described above, the following effects can be obtained.

(1) Since the spout part of the bag is formed by a heat seal pattern and no plastic molded body is attached, the bag can be manufactured at low cost and the spout part is not particularly bulky. When filling the contents, empty bags can be easily supplied to the filling and sealing device, and the filling and sealing can be performed efficiently. Moreover, the used bag can be folded flat and can be easily disposed of.
(2) When using the contents filled in the bag, since the opening means is provided at the opening position of the spout portion, the spout portion can be easily opened at the correct position.

(3) In the laminated film of the bag, the first embossed part that assists the opening of the spout part and prevents its bending from the vicinity of the front end part of the spout part toward the inside of the bag has an appropriate width and height. In addition, the bottom of the base portion of the spout port portion is provided on the bottom side of the spout portion, and when the contents are poured out, it assists the spread of the laminated film on both sides of the laminated film. The second embossed portion that prevents this portion from being blocked by the close contact is moderately wide and high so that the width between both ends is wider than the width of the base portion of the spout portion and forms a downward arc shape or V shape. Since the unsealed spout part can be easily opened in a cylindrical shape with good shape retention by the first embossed part, the rib effect makes the vicinity of the base part of the spout part. It can also prevent obstruction caused by bending

(4) Even when transferring the contents to a small-bore container such as a bottle, the pour-out part can be poured out into the bottle's mouth so that it can be poured out safely without spilling outside. Can do.
In addition, after inserting the spout part into the mouth part of the bottle, the contents flow to the spout part side by tilting or inverting the bag, but at this time, the bottom side of the base part of the spout part ( The portion on the inner side of the bag is easily spread outwardly and with good shape retention along the shape (arc shape or V shape) by the second embossed portion. The contents can be transferred smoothly and safely until the end.
In addition, when the contents are poured out, if the bag is turned upside down as described above, or if the contents are pushed out and the contents are pushed out, the contents at once will be near the base of the spout. Therefore, there is a tendency that the laminated films on both sides tend to be close to each other at the base portion of the spout portion due to the impact, and the second embossing is performed in the bag with the spout portion according to the present invention. Since this portion easily spreads outward by the portion, the impact of the internal pressure applied to the base portion of the spout portion is alleviated, and this portion can be prevented from being easily blocked.

  According to the invention described in claim 2, in the configuration of the bag with spout portion of the invention described in claim 1, the first and second rod-like embossed portions are formed in a flat upper portion, and both sides In addition to the function and effect of the invention described in claim 1, a corner is formed between the upper surface of each embossed portion and the side surfaces on both sides. Therefore, rigidity is enhanced by the rib effect, and in particular, blockage of the spout portion due to bending in the vicinity of the spout portion and its base can be more effectively prevented.

  According to the invention described in claim 3, in the configuration of the bag with the spout portion of the invention described in claim 1 or 2, the first bar-shaped embossed portion is at a position near the base portion of the spout portion. Since it has the structure which has the wide part which expanded the width | variety to circular shape, in addition to the effect of the invention described in Claim 1 or 2, the rigidity of the base part vicinity of a spout part is further improved with the said wide part, and this It is possible to more reliably prevent the blockage due to the bending of the part.

According to the invention described in claim 4, in the configuration of the bag with spout portion according to any one of claims 1 to 3, the bag is configured to have a self-supporting form. In addition to the operational effects of the invention according to any one of claims 1 to 3, the bag filled and sealed with the contents has self-supporting properties, and the handling of the bags becomes easy and the contents are poured out. In this case, the bag with the spout opening opened can be placed upright, and the contents can be poured out more easily.
In particular, when the bag is formed in a standing pouch form, as described above, since it is excellent in self-supporting property and at the same time in appearance, it can be excellent in display effect at a store.

As the laminated film used in the bag with a spout part of the present invention, a laminated film mainly composed of plastic is used, and in a simple structure, a laminated film having a structure in which a sealant layer is laminated on a base film layer is used. However, depending on the contents filled in the bag, usage conditions such as the presence or absence of heat treatment after filling the contents, or the required performance such as water vapor and other gas barrier properties, light shielding properties, various mechanical strengths, etc. In addition, a laminated film having a configuration in which a water vapor or other gas barrier layer, a light shielding layer, a strength improving layer, or the like is laminated between the base film layer and the sealant layer can be used.
The base film layer, water vapor or other gas barrier layer, light shielding layer, strength improving layer, sealant layer, etc. may be formed as a single layer, or may be formed by laminating a plurality of layers. .

The base film layer includes a biaxially stretched film of polyester such as polyethylene terephthalate and polyethylene naphthalate, a biaxially stretched film of polyamide such as nylon 6, nylon 66, MXD6 (polymetaxylylene adipamide), and A biaxially stretched polypropylene film or the like can be preferably used.
These may be used singly or may be used by combining a plurality.

  Examples of the gas barrier layer include films of saponified ethylene / vinyl acetate copolymer (EVOH), polyvinylidene chloride (PVDC), MXD6, polyacrylonitrile (PAN), aluminum foil, silica, alumina, oxidation Biaxially stretched nylon film (ON) provided with an inorganic oxide such as zinc, magnesium oxide, ITO, or a metal deposited layer such as aluminum, or a coating layer such as PVDC, polyvinyl alcohol (PVA), or polyacrylic acid (PAA) Film), biaxially stretched polyethylene terephthalate film (PET film), biaxially stretched polypropylene film (OPP film), and the like.

The inorganic oxide or metal vapor-deposited layer can be formed by being deposited on the base film so as to have a thickness of about 200 to 1200 mm by means of vapor deposition, sputtering, ion plating or the like.
The inorganic oxide vapor-deposited layer may be formed of a single layer, but by forming it with a plurality of layers, a more excellent gas barrier property can be obtained.
In addition, the deposited layer of the inorganic oxide improves the adhesion or prevents damage such as cracks and effectively exhibits excellent gas barrier properties. Reactive acrylic resin, polyurethane resin, acrylic resin containing silane coupling agent, water-soluble polymer containing metal alkoxide, ethylene / vinyl acetate A gas barrier layer can be formed as a composite layer by providing a resin layer such as a polymer saponified product.

Of the gas barrier layers, an aluminum foil or a film provided with an aluminum vapor deposition layer is opaque and can also serve as a light shielding layer.
As the strength improving layer, any one of the base films may be additionally laminated as appropriate, and a biaxially stretched high-density polyethylene film or the like may also be laminated as a moisture-proof layer.
A known dry lamination method or extrusion lamination method (sandwich lamination method) can be used for laminating the base film layer, the gas barrier layer, the light shielding layer, and the strength improving layer.

For the sealant layer, low density polyethylene (LDPE), linear low density polyethylene (L / LDPE), ethylene / α-olefin copolymer, ethylene / vinyl acetate copolymer, ethylene / acrylic acid copolymer, ethylene -In addition to acrylic acid ester copolymers and ionomers, polypropylene or copolymers thereof can be used.
For the lamination of the sealant layer, the above resin can be formed into a film and laminated by a dry lamination method or an extrusion lamination method, or the above resin can be extruded and laminated. However, in the case where the content easily penetrates into the sealant layer, it is preferable to laminate by the dry lamination method.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
FIG. 1 is a front view showing a configuration of an embodiment of a bag with a spout portion according to the present invention.
2A is an enlarged schematic sectional view taken along line XX of FIG. 1, FIG. 2B is an enlarged schematic sectional view taken along line YY of FIG. 1, and FIG. 2C is a sectional view taken along line ZZ of FIG. It is an expansion schematic sectional drawing of a line.
FIGS. 3-8 is the principal part which shows the shape of the 2nd-7th Example different from FIG. 1 of the embossing part provided in the spout part of the bag with a spout part of this invention, and its vicinity, respectively. It is a front view.
However, the present invention is not limited to these drawings unless it exceeds the gist.

  A bag 100 with a spout portion shown in FIG. 1 has a trunk portion and a bottom portion formed into a standing pouch-type bag, and the bottom portion is a lower portion of the laminated films 1 and 1 'on the front and rear wall surfaces according to a conventional method. Is formed in a form having a gusset portion 4 formed by folding the bottom film inward and inserting the bottom film folding portion 2, and in this case, in the vicinity of the lower ends on both sides of the bottom film folded inward, The bottom film cutout portions 3a and 3b are provided, and the gusset portion 4 is formed by heat-sealing with a bottom-shaped bottom seal portion 5 in which the inside becomes concave in a curved line shape from both sides to the center portion. The body portion of the bag 100 is formed by heat-sealing the side edge portions of the laminated films 1 and 1 'on the front and rear wall surfaces with side seal portions 6a and 6b.

And in one corner part (left corner part in the figure) of the upper part of the bag 100, a narrow outlet spout 50 facing obliquely outward and upward is provided on the outer periphery, that is, the tip part and both side parts, and The shoulder portion is formed by heat sealing with the spout portion seal portion 7, and on both sides of the spout portion 50, the heat seal portions with the required widths are left on the both sides of the spout portion 50 from the front end side of the spout portion to the base B. After facing, notches 9a and 9b are provided in a shape that folds outward at an acute angle, and at the opening position in the vicinity of the tip of the spout 50, at least the half-cut line 10 and its upper side are provided as an opening means. A notch 11 is provided at the end, and further, along the center line of the spout part, to the length from the vicinity of the tip part of the spout part 50 toward the inside of the bag to the middle part in the width direction of the bag 100, Assist opening of spout 50 and bend The shape of the first embossed portion E-1 for preventing the occurrence of a stick is a rod having an appropriate width and height, and has a wide portion W having a widened circular shape at a position near the base B of the spout 50. In addition, on the lower side (inside of the bag) of the bases B and B of the spout part 50, when the contents are poured out, to the outside of the laminated films 1 and 1 'on both sides of this part The second embossed part E-2 that assists the spread of the film and prevents the clogging of this part due to the adhesion between the laminated films is wider than the width of the base parts B and B of the spout part 50 and is downward. The second embossed portion E-2 is provided in a rod shape having an appropriate width and height so as to form an arc shape, and the second embossed portion E-2 intersects with the first embossed portion E-1 at an intermediate portion thereof. The entire embossed portion E is formed so as to be formed in a shaped shape.
In addition, although the upper edge part in which the spout part 50 is not provided among the upper parts of the bag 100 is heat-sealed by the upper seal part 8, this part is used for the filling port of the contents. In the stage before filling the contents, an unsealed opening is formed, and the bag 100 is sealed by heat sealing after filling the contents.

The half-cut line 10 is shown as three half-cut lines in the figure. However, as described above, in addition to one half-cut line, one or two each on both sides of the central half-cut line. A plurality of half-cut lines can be provided in parallel or in a shape that converges to the center half-cut line, or a shape in which a parallel half-cut line and a half-cut line that crosses diagonally are added. .
As described above, the number and shape of the half-cut lines can be arbitrarily set so that the tear line is stabilized within a desired range.
For example, when a plurality of half-cut lines are provided in parallel, the intervals are preferably as narrow as possible, and are preferably provided at intervals of about 1 mm as the feed pitch of laser light irradiation.

  When the half cut line 10 and the first embossed part E-1 are provided on the laminated films 1 and 1 'on both sides of the spout part 50 so as to partially overlap each other as shown in the drawing, the working method For example, after providing the embossed portion E-1 first, it is preferable to provide the half-cut line 10 on the non-contacted portion by laser light irradiation thereon, thereby providing a stable depth with respect to the embossed portion E-1. The half-cut line 10 can be provided.

  Further, the embossed portion E may have a shape in which the cross section of each portion bulges outward in a curved shape. In this case, (a), (b), and (c) in FIG. As shown in the enlarged schematic cross-sectional views of the YY line and the ZZ line, the upper surface UP is formed in a planar shape, the side surfaces SP-1 and SP-2 on both sides are formed in an inclined surface shape, and the whole is a trapezoid. It is provided in the shape which makes.

FIG. 3 is a front view of the main part showing the shape of the second embodiment different from FIG. 1 of the spout portion of the bag with the spout portion of the present invention and the embossed portion provided in the vicinity thereof.
The embossed portion E shown in FIG. 3 is provided along the center line of the spout portion from the vicinity of the tip of the spout portion 50 toward the inside of the bag in the configuration of the embossed portion E shown in FIG. The first bar-shaped embossed part E-1 is formed in a bar shape having the same width as the other part by removing the wide part W provided in a circular shape at a position near the base B of the spout part 50. At the same time, the first embossed portion E-1 has a cross-sectional shape with respect to a portion (a portion on the inner side of the bag) ahead of the portion where the arc-shaped second embossed portion E-2 intersects. 2 is not a trapezoidal shape with a wide skirt as shown in (b) of FIG. 2, but a stand having a relatively large rising angle on both sides as shown in (a) of FIG. The embossed portion shown in FIG. 1 is used for the other configurations. And it is constructed by forming similarly.

FIG. 4: is a front view of the principal part which shows the shape of the 3rd Example of the embossing part provided in the area | region of the spout part of the bag with a spout part of this invention, and its vicinity.
The embossed portion E shown in FIG. 4 does not intersect at the portion where the first embossed portion E-1 and the second embossed portion E-2 intersect in the configuration of the embossed portion E shown in FIG. In this way, the first embossed portion E-1 is divided into two parts, which are separated into a first embossed portion E-1a on the spout portion side and a first embossed portion E-1b on the inner side of the bag. The other configurations are formed and configured in the same manner as the embossed portion E shown in FIG.

FIG. 5: is a front view of the principal part which shows the shape of the 4th Example of the embossing part provided in the area | region of the spout part of the bag with a spout part of this invention, and its vicinity.
The embossed portion E shown in FIG. 5 has a V-shaped configuration in which the shape of the second embossed portion E-2 in the configuration of the embossed portion E shown in FIG. The other configuration is the same as that of the embossed portion E shown in FIG.

FIG. 6: is a front view of the principal part which shows the shape of the 5th Example of the embossing part provided in the area | region of the spout part of the bag with a spout part of this invention, and its vicinity.
The embossed portion E shown in FIG. 6 does not intersect at the portion where the first embossed portion E-1 and the second embossed portion E-2 intersect in the configuration of the embossed portion E shown in FIG. In this way, the first embossed portion E-1 is divided into two parts, which are separated into a first embossed portion E-1a on the spout portion side and a first embossed portion E-1b on the inner side of the bag. The other configuration is formed and configured in the same manner as the embossed portion E shown in FIG.

FIG. 7: is a front view of the principal part which shows the shape of the 6th Example of the embossing part provided in the spout part of the bag with a spout part of this invention, and its vicinity.
The embossed portion E shown in FIG. 7 does not intersect at the portion where the first embossed portion E-1 and the second embossed portion E-2 intersect in the configuration of the embossed portion E shown in FIG. In this way, the first embossed portion E-1 is divided into two parts, which are separated into a first embossed portion E-1a on the spout portion side and a first embossed portion E-1b on the inner side of the bag. The first embossed portion E-1b on the inner side of the bag is changed to a length that is further bent downward from the middle portion in the width direction of the bag and extended downward by about 20 to 50 mm. The second embossed part E-2 was also separated into a left and right second embossed part E-2a and a second embossed part E-2b by cutting off the lower end of the V-shape. It is provided with a shape. Further, except for the above changes, the embossed portion E shown in FIG. 5 is formed and configured.

FIG. 8: is a front view of the principal part which shows the shape of the 7th Example of the embossing part provided in the spout part of the bag with a spout part of this invention, and its vicinity.
The embossed portion E shown in FIG. 8 includes a first embossed portion E-1a and a first embossed portion E-1b that are divided into two in the configuration of the embossed portion E shown in FIG. The lower first embossed portion E-1b is removed, and the upper first embossed portion E-1a is left as a new first embossed portion E-1, except for the above changes. These are formed and configured in the same manner as the embossed portion E shown in FIG.

As described above, the embossed portion E shown in FIGS. 3 to 8 can be used by replacing the embossed portion E provided in the bag 100 with the spout portion shown in FIG. In order to obtain more effectively, it is preferable that the first embossed portion and the second embossed portion are integrally formed as shown in FIGS. 1, 3, and 5.
Further, the width and height of the embossed portion E are not particularly limited, but the width is 3 to 15 mm at the bottom and 1.5 to 10 mm at the top when the cross section is trapezoidal. It is preferable that the height is about 2 to 4 mm at the highest part.

Next, the manufacturing method of the bag with a spout part of this invention is demonstrated easily.
The bag with the spout portion of the present invention is a laminated film bag provided with a narrow width spout portion formed by heat-sealing the outer periphery of a part of the top of the bag, near the tip of the spout portion. An opening means is provided at the opening position, and a first embossed portion is provided in a bar shape having an appropriate width and height from the vicinity of the tip of the spout portion toward the inside of the bag, and the spout portion On the lower side of the base portion, the second embossed portion has an appropriate width and height so that the both ends thereof are wider than the width of the base portion of the spout portion and form a downward arc shape or V shape. Based on the structure provided in the shape of a stick with a shape, and further, a shape that turns from the tip side of the spout part toward the base, and then turns outward at an acute angle, leaving a heat seal part of the required width on both sides of the spout part A notch or half-cut wire is used to open the spout. Etc. The provided, also, the form of the bag body, as described above, in addition to the flat bags such as four-side sealed type or a three-way seal type, and is formed into a form having a self-supporting, such as standing pouch.
Therefore, basically, a bag making machine capable of making a bag is selected according to the type of bag to be used, and a heat seal device, a cutout portion, a notch, etc. are provided for forming a spout portion. By appropriately adding a punching device, a laser beam irradiation device for providing a half-cut line, and an embossing device for providing an embossed part, the bag with a spout part of the present invention is manufactured with high productivity. be able to.
Hereinafter, the present invention will be described more specifically with reference to examples.

A bag 100 with a spout portion having the configuration shown in FIG. 1 was prepared, and a bag having the following dimensions was manufactured using a laminated film having the following configuration to obtain a bag with a spout portion of Example 1.
(1) Structure of laminated film 1 and 1 'for wall surface (outside) biaxially stretched nylon film (hereinafter referred to as ON film) (thickness 15 μm) / character, picture printing layer / adhesive / linear low density polyethylene Film (hereinafter referred to as L / LDPE film) (thickness 130 μm)
(2) Structure of laminated film for bottom surface (outside) ON film (thickness 15 μm) / white solid printing layer / adhesive / L / LDPE film (thickness 120 μm)
The above films are bonded together by a dry lamination method, and the adhesive between the films uses a two-component curable polyurethane adhesive for dry lamination.

(3) Dimensions of bag The dimensions of the bag 100 were external dimensions, a width of 130 mm, a length of 230 mm, and the length of the bottom gusset portion 4, that is, the folded length of the bottom film was 35 mm.
The spout 50 is provided with a half-cut line 10 at the left corner of the upper part of the bag in the shape shown in the figure, and the interval between the inner lines of the heat seal part on both sides of the spout, that is, the width of the liquid passageway. 13 mm, 16 mm in the vicinity of the base B of the spout port, and the length from the half-cut line 10 to the bases B and B of the spout port is 34 mm, and the inclination angle of the spout port (spout port) The angle between the center line of the bag and the bottom of the bag was 45 °.
As shown in the figure, the upper part of the bag 100 is slightly narrower than the body part and the bottom part, so that the right side part in the figure is inclined inward from a position 40 mm below the upper end of the bag. Cut diagonally so that the width is 2 mm narrow at the upper end, and the left side is formed so that the left end line of the heat seal part at the tip of the spout part 50 is 2 mm inside the left end extension line of the body part did.
Further, at the opening position in the vicinity of the tip portion of the spout portion 50, as the opening means, the half cut line 10 and the notch 11 are provided at the upper end portion thereof, and the shape illustrated in the spout portion 50 and the vicinity thereof. The embossed portion E was provided so that the height of the highest portion was 2.5 mm.
The half-cut line 10 is shown as three half-cut lines in the figure. However, two half-cut lines parallel to both sides of the central half-cut line are set to 1 mm between the two half-cut lines by laser light irradiation. Provided.

  In the configuration of the bag with the spout portion of Example 1, the laminated film used for the bag is changed to the following configuration, and the shape of the embossed portion E provided in the spout portion 50 and the area in the vicinity thereof is shown in FIG. The bag with the spout part of Example 2 was produced in the same manner as in Example 1 except that the embossed part E having the shape shown in FIG.

(1) Structure of laminated film 1, 1 ′ for wall surface (outside) ON film (thickness 15 μm) / character, pattern printing layer / adhesive / ON film (thickness 15 μm) / adhesive / L / LDPE film (thickness 130 μm)
(2) Structure of laminated film for bottom surface (outside) ON film (thickness 15 μm) / white solid printing layer / adhesive / ON film (thickness 15 μm) / adhesive / L / LDPE film (thickness 110 μm)
In this case as well, the above films were all bonded by the dry lamination method, and the adhesive between the films was a two-component curable polyurethane adhesive for dry lamination. is there.

(Test and results)
In order to evaluate the bag with the spout part of Examples 1 and 2 produced as described above, the filling seal device was used to transfer the liquid as the contents from the unsealed upper seal part 8 to each bag with the spout part. After filling about 400 ml of detergent, the upper seal 8 was heat sealed to seal the bag.
The packaging bodies made of bags with spout portions according to Examples 1 and 2 produced as described above had excellent self-supporting properties, good appearance, and excellent handling properties.

Next, in order to perform the transfer test of the liquid detergent filled in each package, the spout part of each package was torn along the half-cut line 10 from the notch 11, and the examples 1 and 2 In each package, the tear line did not deviate from the range of the half cut line 10, and the spout 50 could be easily opened by tearing by hand.
Moreover, since the 1st embossed part E-1 is provided among the said embossed parts E in the laminated film 1 and 1 'of both surfaces of the opened spout part 50, respectively, the laminated film 1 of both surfaces, The inner surfaces of 1 'are not in close contact with each other, and the spout portion 50 can be easily opened in a cylindrical shape by simply pressing the ends of the heat seal portions on both sides of the spout portion 50 from the outside to the inside. I was able to.

  Subsequently, a plastic bottle with a push pump having an inner diameter of 26 mm is prepared as a container for transferring the filled liquid detergent, the pump is removed, the mouth is opened, and the spout port is formed in the mouth. 50 was opened and the outlet 50 of each package of Examples 1 and 2 was opened and inserted, and the package was tilted or inverted to transfer the liquid detergent. Each package can start dispensing safely without liquid detergent popping out and spilling out, and the spout, its base, or the inside may be bent during pouring. The liquid detergent could be transferred smoothly to the end without clogging.

  The bag with a spout part of the present invention is, for example, shampoo, conditioner, body soap, household liquid detergent, other liquid seasonings, edible oil, various beverages, etc. in addition to liquid contents, powder, granules, etc. When the contents having fluidity are sealed and packaged, and the contents are used, it can be used particularly suitably as a packaging bag for refilling that is transferred to another container such as a bottle. There are no particular restrictions on the contents and usage.

It is a front view which shows the structure of one Example of the bag with a spout part of this invention. (A) is an enlarged schematic cross-sectional view taken along line XX in FIG. 1, (b) is an enlarged schematic cross-sectional view taken along line YY in FIG. 1, and (c) is an enlarged schematic cross-sectional view taken along line ZZ in FIG. It is. It is a front view of the principal part which shows the shape of the 2nd Example different from FIG. 1 of the embossing part provided in the area | region of the spout part of the bag with a spout part of this invention, and its vicinity. It is a front view of the principal part which shows the shape of the 3rd Example of the embossing part provided in the area | region of the spout part of the bag with a spout part of this invention, and its vicinity. It is a front view of the principal part which shows the shape of the 4th Example of the embossing part provided in the area | region of the spout part of the bag with a spout part of this invention, and its vicinity. It is a front view of the principal part which shows the shape of the 5th Example of the embossing part provided in the spout part of the bag with a spout part of this invention, and its vicinity. It is a front view of the principal part which shows the shape of the 6th Example of the embossing part provided in the spout part of the bag with a spout part of this invention, and its vicinity. It is a front view of the principal part which shows the shape of the 7th Example of the embossing part provided in the spout part of the bag with a spout part of this invention, and the area | region of the vicinity.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1, 1 'Laminated film 2 Bottom film return part 3a, 3b Bottom film notch part 4 Gusset part 5 Bottom seal part 6a, 6b Side seal part 7 Outlet part seal part 8 Upper seal part 9a, 9b Notch part 10 Half-cut wire 11 Notch E Embossed part E-1, E-1a, E-1b First embossed part E-2, E-2a, E-2b Second embossed part W Wide part UP Upper surface SP-1, SP -2 Side B Base of outlet part 50 Outlet part 100 Bag with outlet part

Claims (4)

  In the laminated film bag provided with a narrow width spout part formed by heat-sealing the outer periphery of a part of the upper part of the bag, an opening means is provided at an opening position in the vicinity of the tip part of the spout part, The first embossed part that assists the opening of the spout part and prevents its bending from the vicinity of the front end part of the spout part to the inside of the bag is provided in a rod shape having an appropriate width and height, In addition, on the lower side of the base of the spout portion, when the contents are poured out, this portion assists the spread of the laminated film on both sides of the laminated film, and this portion is blocked by the adhesion between the laminated films. The second embossed portion to be prevented is provided in a bar shape having an appropriate width and height so that the width between both ends is wider than the width of the base portion of the spout portion and forms a downward arc shape or V shape. A bag with a spout part, characterized by being.   2. The bag with spout portion according to claim 1, wherein the first and second bar-shaped embossed portions are formed in a flat upper portion and side portions on both sides are inclined.   The bag with a spout part according to claim 1 or 2, wherein the first bar-shaped embossed part has a wide part whose width is expanded in a circular shape at a position near the base part of the spout part.   The bag with a spout part according to any one of claims 1 to 3, wherein the bag is formed in a self-supporting form.

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