JP2001335043A - Cartridge type bag - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a cartridge type bag used for hermetically sealing fluid contents, such as ink, and used by being attached to a printer or the like, which is totally excellent in usability, economical efficiency, disposability, and so on since a structure is simple, an air bag is not bulky, the ink in the bag does not contact air, and almost no ink is left after use. SOLUTION: The cartridge type bag 100 is formed from, for example, a laminated film bag and a tubular cover sheet 14. The laminated film bag has a discharging opening 20, made of plastic, which is joined to part of the top of the film bag. The tubular cover sheet 14 is attached so as to cover the periphery, or sides, of the bag. Sticking sections 15 of the cover sheet 14 are stuck to the surface of the bag so that the cover sheet 14 can be stripped. It is preferable that the cover sheet 14 be made of a material that is greater in stiffness than the laminated film of the bag and that the sticking area of each sticking section 15 gradually increase toward the discharging opening.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cartridge-type bag, and more particularly, to a printing device and a coating device in which a fluid content such as a liquid, a viscous liquid, and a powder is sealed and packaged, and the bag is used as it is when used. The present invention relates to a cartridge type bag which can be used by being attached to a processing device such as a cartridge.

[0002]

2. Description of the Related Art Conventionally, for example, an information output printer,
In addition, in a printing apparatus used in an office or the like, a cartridge-type container that can be attached to and used in a printing apparatus together with a container is mainly used in terms of simplicity of handling when supplying ink. Such a cartridge-type container is used so that the ink in the container does not come into contact with air during use, and that the ink in the container remains as little as possible after use, especially when the content to be filled is liquid ink. It is preferable to be able to reduce the volume of the container by folding, shrinking, narrowing, etc. in accordance with the amount of ink reduced by suction and discharge, thereby preventing the inflow of air into the inside and the remaining amount of ink. Is configured to be reduced.

[0003] As such a cartridge type container, for example, a flexible deep drawing container made of a laminated film or the like is provided in a small outer box such as a decorative cardboard, an opening of a plastic tray-like container provided with a spout. There is a cartridge type container equipped with an inner container formed by joining. In this case, when the ink filled in the inner container is sucked and discharged from the spout, the inner container is made flexible according to the weight loss. The volume of a deep drawn container is reduced by being sucked and depressed toward the plastic tray-shaped container, thereby preventing the inflow of air and reducing the amount of ink remaining.

[0004] In a bag-in-box (BIB) format, an inner bag with a plastic spout is mounted in a small outer box such as a cardboard box, and an inner bag is inserted from the side where the spout is mounted. There is a cartridge type container of a type that is attached to the inner surface of the outer box up to about half the length of the cartridge. In this case, the volume of the ink is reduced while the bottom of the inner bag is gradually sucked and drawn into the spout port according to the reduction in the amount of the ink filled in the inner bag. It is sucked and discharged so that the residue is reduced.

[0005]

Although such a cartridge-type container is almost satisfactory in terms of simplicity of attachment to a printing device and the like, and functions during use, any of the above-mentioned cartridge-type containers requires an outer box and an inner container or inner bag. Due to the double structure, the ratio of container cost to the product is relatively high, and the container is bulky, so that after the container is manufactured, for example, the efficiency of storage and transportation until ink filling, and furthermore, the disposal treatment after use There was a problem in terms of volume reduction at the time.

SUMMARY OF THE INVENTION The present invention has been made to solve the above problems, and has as its object the following.
For example, it is a cartridge-type bag that can be used by hermetically packaging ink having fluidity such as viscous liquid ink and attaching it to a printing apparatus as it is when used.The structure can be simplified and cost can be reduced. The empty bag is not bulky, the efficiency of storage and transportation is high, the volume can be reduced when disposing after use, the preservation of the ink is also good, the installation to the printing device is easy, An object of the present invention is to provide a cartridge-type bag excellent in performance, suitability for use, economy, disposal property, etc., in which air does not enter and the amount of ink remaining in the bag after use can be reduced. .

[0007]

The above objects can be attained by the present invention described below. That is, the invention according to claim 1 is a bag made of a laminated film in which a bag having a fluid content therein is hermetically sealed, the bag being provided at one end with a spout made of a plastic molded body. And a cylindrical cover sheet attached to cover the outer periphery of the side of the bag, wherein the cover sheet is releasably adhered to the surface of the bag. It consists of a formula bag.

By adopting such a configuration, the cartridge type bag of the present invention does not use an outer box made of decorative cardboard or the like on the outside of the bag with the spout, so that only the tubular cover sheet can be peeled off. Since they are adhered, the empty bag can be folded, not bulky, has good storage and transportation efficiency, and can be reduced in volume when disposed after use. Since the bag is provided with a spout made of a plastic molded body, it is used not only as an ink spout but also as an injection port even when filling viscous liquid ink as a content. In addition, attachment to a printing apparatus can be easily performed.

A cartridge bag filled with ink is
Although it swells into a three-dimensional shape, a tubular cover sheet is releasably adhered to the outside of the bag, which improves form stability, shape retention, and appearance, and is excellent in printing equipment. In use, the ink is sucked and discharged from the spout, so that the bag is
From the other end side opposite to the end where the spout is attached, it is easily peeled off from the cylindrical cover sheet sequentially toward the end where the spout is attached, and the wall films on both sides overlap at the center. In this way, the ink is supplied to the printing apparatus so that air does not enter into the inside and the ink remains stable and the remaining amount is small until the end.

According to a second aspect of the present invention, the cover sheet is provided on the surface of the bag from the other end opposite to the end where the spout is attached to the end where the spout is attached. The cartridge-type bag according to claim 1, wherein the cartridge-type bag is bonded so that the peeling resistance gradually increases.

[0011] Such adjustment of the peeling resistance is, for example, performed as follows.
Using a re-peelable adhesive or the like as the adhesive, and the application area gradually from the other end side opposite to the end where the spout is attached toward the end where the spout is attached It can be easily implemented by a method of increasing the size. Therefore, by adopting the above configuration, in addition to the operation and effect of the invention described in claim 1, when the cartridge type bag is used by being attached to the printing apparatus, the bag reduces the amount of ink. Accordingly, from the other end side opposite to the end where the spout is attached, the end where the spout having high detachment resistance is attached from the other end side opposite to the end where the spout is attached, that is, from the bottom side of the bag. The tapered shape gradually narrows while gradually peeling from the cylindrical cover sheet toward the part side, so that the flat shape is more smoothly fitted, and the residual amount of ink can be further reduced.

According to a third aspect of the present invention, in the cartridge type bag according to the first or second aspect, the cover sheet is formed of a material having higher rigidity than the laminated film of the bag. is there.

By adopting such a configuration, in addition to the functions and effects of the invention described in claim 1 or 2, the surface of the cartridge type bag is reinforced by a highly rigid tubular cover sheet. The form of the cartridge-type bag after ink filling is stabilized, and the appearance is improved.
When the bag shrinks flat according to the ink loss, the cover sheet does not shrink together with the bag, and only the bag shrinks more securely from the bottom to a flat shape that gradually fits. Therefore, the remaining amount of ink can be reduced more reliably.

According to a fourth aspect of the present invention, there is provided a gusset formed by inserting the upper film or the lower film into the bag between the upper and lower portions of the front and rear wall films. The body portion is formed by heat sealing both side edges of the front and rear two wall films with side seal portions, and the lower gusset portion is provided with a self-supporting shape. Heat-sealed with the seal pattern of the above, the upper and lower gussets of the pleats on both sides, on the upper part of one of the pleats, the film on both sides, i.e., the wall film and the upper surface film opposed thereto are extended. 4. A projecting portion is provided, and a spout made of a plastic molded body is attached to an upper portion of the projecting portion.
The cartridge type bag according to any one of the above.

The seal pattern having the shape imparting self-sustainability may be any seal pattern as long as the seal pattern is concave on the inside, but a ship bottom seal pattern having a lower central portion and a higher height toward both side edges is particularly preferable. .

By adopting such a configuration, in addition to the operation and effect of the invention described in any one of claims 1 to 3, since the bag itself has a shape having gusset portions at the top and bottom, the ink inside is formed. By filling with, the upper and lower portions easily spread to form a cylindrical body. Therefore, the cylindrical cover sheet and the bag adhered to the outside are more closely adhered to each other, and a cartridge type bag excellent in sense of unity is formed. In addition, since the bag is provided with autonomy by the lower gusset portion and its seal pattern, the cartridge-type bag after the contents are filled can be placed upright, which is easy to handle, and can be efficiently transported and stored. When the cartridge-type bag is used by attaching it to the printing device, the bottom film of the bag is folded into the same shape as before ink filling because the bottom film of the bag is drawn in first according to the amount of ink reduction. As a result, the bag gradually narrows flat from the bottom side, and the amount of remaining ink can be reduced.

[0017]

BEST MODE FOR CARRYING OUT THE INVENTION Hereinafter, the present invention will be described with reference to a laminated film used for a bag of the cartridge type bag of the present invention, a cover sheet adhered to the outside of the bag, a spout, and a method of manufacturing the cartridge type bag. The form will be described. First, the laminated film used for the bag of the cartridge-type bag of the present invention is mainly a plastic-based laminated film, but is not particularly limited, and is a known film used for packaging bags for contents such as liquid. Any of the above laminated films can be used, and a laminated film having an appropriate configuration can be appropriately selected and used according to the components of the ink to be filled. As a typical example of the configuration of such a laminated film, the following configuration is given.

(1) ON film / adhesive / L·LDPE
Film (sealant layer) (2) ON film / adhesive / biaxially stretched HDPE film / adhesive / L / LDPE film (sealant layer) (3) ON film / adhesive / biaxially stretched PP film / adhesive / L・ LDPE film (sealant layer) (4) ON film (silica or alumina or aluminum deposited layer) / adhesive / biaxially stretched HDPE film / adhesive / L ・ LDPE film (sealant layer) (5) ON film (silica or Alumina or aluminum deposited layer) / adhesive / biaxially oriented PP film / adhesive /
L / LDPE film (sealant layer) (6) ON film / adhesive / aluminum foil / adhesive /
L / LDPE film (sealant layer) (7) ON film / anchor coat layer / co-extrusion coat layer (HDPE layer / L / LDPE layer) (sealant layer is L / LDPE layer) (8) ON film / anchor coat layer / Co-extrusion coat layer (HDPE layer / EVOH layer / L-LDPE layer) (Sealant layer is L-LDPE layer) (9) PET film / adhesive / ON film / adhesive /
L · LDPE film (sealant layer) (10) PET film (silica or alumina or aluminum deposited layer) / adhesive / ON film / adhesive / LL
DPE film (sealant layer) (11) PET film / adhesive / ON film / adhesive /
Aluminum foil / adhesive / L-LDPE film (sealant layer) (12) PET film / adhesive / EVOH film / adhesive / ON film / adhesive / L-LDPE film (sealant layer) However, the present invention is not limited to this, and laminated films having various structures can be used.

In the above structure, the ON film is a biaxially stretched nylon film, the L / LDPE is a linear low density polyethylene, the HDPE is a high density polyethylene, the LDPE is a low density polyethylene, the PP film is a polypropylene film, and the PET film is biaxial. Stretched polyethylene terephthalate film, EVOH, refers to saponified ethylene-vinyl acetate copolymer. In addition, the anchor coat is a kind of primer coat that is previously coated on the base film side in order to improve adhesiveness when laminating a resin by extrusion coating.

In the construction of the laminated film, ON
Films and PET films are used as base films to impart mechanical strength and printability to bags, and to provide biaxially stretched HD
The PE film and the biaxially stretched PP film are laminated to improve the moisture permeability (moisture proof) in addition to the mechanical strength. And silica or alumina or aluminum vapor deposition layer, aluminum foil, EVOH layer, EVOH film, etc., are mainly laminated to improve gas barrier properties, except for EVOH layer, EVOH film,
The water vapor permeability can also be reduced. By laminating these layers on the intermediate layer, the storage stability of the contents can be improved.

As the sealant layer, L·LDP
Although only the example of the E film is given, the L / LDPE film is excellent in heat sealing stability and content resistance, for example, stress cracking resistance to surfactants, water resistance, and the like. Suitable for packaging, etc.

In addition to the above, the sealant layer may be made of polypropylene, ethylene / α-olefin copolymer, ethylene / vinyl acetate copolymer, ethylene / acrylic acid copolymer, depending on the components of the ink to be filled and the material of the spout. A combination, an ethylene / acrylate copolymer, an ionomer, a polyester resin, and the like can also be appropriately selected and used.

In particular, the ethylene / α-olefin copolymer obtained by polymerization using a single-site catalyst such as a metallocene catalyst has a narrow molecular weight distribution and a stable copolymerization ratio, so that the low-temperature heat sealability and It is excellent in hot sealability. For example, like the bag of the cartridge type bag according to the above-described claim 4, the film overlaps with the heat seal portion such as between the upper and lower gusset portions and the body seal portion. Suitable for bags with steps due to differences, or for sealant layers of bags where the spout made of plastic molding is bonded to the inner surface of the bag by thermal bonding, in that pinholes due to missing seals can be prevented. I have. Further, by using the copolymer blended with an olefin-based elastomer, the heat fluidity of the sealant layer is improved, and the occurrence of pinholes due to the step or the like can be more effectively prevented.

The spout made of a plastic molded body attached to the cartridge-type bag of the present invention inserts the adhesive base between the films on both sides of one end of the bag,
It is preferable to use a sealant layer of the bag and heat-bond by thermocompression bonding using a heat seal head or an ultrasonic sealing method in terms of good productivity and excellent bonding performance.
The spout itself can be easily manufactured by, for example, injection molding of plastic, and the shape may be a two-piece type in which the spout and the cap are separately formed,
The spout portion and the cap may be a one-piece type integrally formed through a thin portion. As such a spout, a spout having a shape in which an obstruction preventing rib (a cross-sectionally shaped bar-shaped rib) is provided under the adhesive base can be used, thereby more reliably reducing the residual amount of ink. can do. When the spout is of the two-piece type, for example, after joining the spout to the bag, filling the contents from the opening of the spout, and closing the cap,
A sealing material made of a laminated film may be thermally bonded to the opening to securely seal. The material of the spout needs to be able to be thermally bonded with the sealant layer of the bag, and for example, polypropylene, polyethylene such as medium density or high density, and polyester can be used.

Next, the cover sheet which is releasably adhered to the outside of the bag preferably has at least higher rigidity than the laminated film used for the bag, and can be releasably adhered to the outside of the bag. Anything that can be formed into a foldable cylindrical shape can be used. For example, the same material composition as the laminated film of the bag may be used and the thickness may be increased, or a single or composite sheet of a plastic such as polypropylene or polyethylene terephthalate may be used. Laminated processed paper or resin-impregnated paper may be used. The length of such a cover sheet is from the upper part of the bag to the position of about half the total length to the lower end,
It can be set to any length. In addition, the adhesive for releasably adhering such a cover sheet to the bag surface is, in addition to the adhesive, a heat-sensitive adhesive such as a heat sealant,
Hot melt materials and the like can be suitably used.

A method of manufacturing the cartridge-type bag of the present invention, which is manufactured using the above-described laminated film, spout and cover sheet, will be described. The cartridge-type bag of the present invention is configured such that a cylindrical cover sheet is peelably adhered to the outside of a bag made of a laminated film having a spout attached to one end so as to surround a side portion thereof. The type of itself is not particularly limited. For example, in addition to a three-side seal type, a four-side seal type, a pillow type (the position of the back seal may be changed to the side), a tube type, and a gusset at the upper part or at the upper and lower parts Various types of bags such as a modified gusset pouch type provided with a portion (see FIGS. 1 and 2) can be used.

In the case of a three-side seal type, a four-side seal type, a pillow type, and the like, such a bag can be manufactured using an existing bag-making machine. The spout is installed in the case of a three-side seal type or four-side seal type bag.
Although it is possible to install the spout mounting device in the bag making machine and install it in-line, basically, it is possible to prepare a dedicated mounting device separately and install it offline after bag making, rather than as a whole production It is preferable from the viewpoint of stability and quality stabilization.

In the case of the modified gusset pouch type in which gusset portions are provided at the upper portion or the upper and lower portions, for example, a conventional bag making machine for a standing pouch (for a bag having a gusset portion at the top and bottom). Uses a bag making machine for two-row bag making for one-row bag making), it is necessary to add or change a heat sealing device or a trimming device, but it is possible to make a bag without any problem. . For example, when extending one gusset of the gusset at the top of the bag to provide a protrusion and attaching a spout to that portion, the gusset on the side where the protrusion is provided, and the other gusset However, it is necessary to heat seal separately, but it is possible to make a bag without any problem by dividing into a plurality of sections and heat sealing.

[0029]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below more specifically with reference to the drawings. However, unless the present invention exceeds the gist,
It is not limited to the following drawings. Further, the same reference numerals are used for the parts having the same names in different drawings. 1 to 4 are front views each showing the configuration of an embodiment of the cartridge-type bag of the present invention.

FIG. 1 shows a first embodiment of the cartridge type bag according to the present invention.
FIG. 1 is a front view showing the configuration of the embodiment. In the cartridge-type bag 100 shown in FIG. 1, the upper and lower portions of the bag body are arranged between the upper and lower portions of the front and rear wall films 1, 1 '. The top film or the bottom film is folded inward, respectively, and in the case of the top film, the top film cutouts 4, 4 are provided near the upper ends of both side edges thereof,
In the case of a bottom film, bottom film cutouts 5 and 5 are provided near the lower ends of both side edges thereof, and the top film folded portion 2 or the bottom film folded portion 3 is provided, respectively.
To form a shape having gusset portions 6 and 7 by a method of heat-sealing with a predetermined seal pattern, and the body portion has side seal portions 9 and 9 on both side edges of the wall films 1 and 1 ′. And heat-sealed.

The lower gusset part 7 has
A ship bottom-shaped seal pattern in which the center portion is low and rises linearly toward both side ends, that is, the bottom seal portion 8 is heat-sealed, and the upper gusset portion 6 has a front-side fold-shaped seal pattern. On the upper side, the film on both sides, that is, the wall film 1 and the upper surface film opposed thereto are extended, and the projecting portion 10 is shaped such that the width decreases on both sides toward the upper direction.
The upper sealing portion 11 has a shape in which both side edges of the front fold-shaped portion including the protruding portion 10 are connected to the base line of the fold-shaped portion from the base of the protruding portion 10 by an inner straight line connected by an inclined straight line. , 11 and a spout 20 made of a plastic molded body is joined to the upper part of the protruding part 10 by thermal bonding at an upper seal part 12, and a fold on the back side of the upper gusset part 6. The shape is a reverse bottom seal pattern in which the top and bottom of the bottom seal 8 are inverted,
That is, the upper gusset portion is formed by heat sealing with the back side seal portion 13.

In this case, the spout 20 has a cylindrical portion 21 as a main body, an adhesive base portion 22 provided at a lower portion, an appropriate flange 23 provided thereon, and a separate screw type cap 24 at an upper portion. Is attached. Outlet 20
Is attached to the bag by inserting the adhesive base portion 22 of the spout 20 between the films on both sides of the upper part of the protruding portion 10 of the bag, and heat-bonding from both sides. Then, on the outside of the bag, a tubular cover sheet 14 is attached so as to surround the periphery in the lateral direction from the top of the bag to which the spout 20 is joined to a position slightly above the bottom of the bag, It is configured to be releasably bonded by vertically long inverted triangular bonding portions 15, 15. The bonding portions 15 are similarly provided on the back side. Further, when a material having a particularly high rigidity is used as the cover sheet 14, for example, in accordance with a line connecting the opposite corners of the inverted bottom shape of the upper and lower gusset portions 6, 7 and the bottom shape seal pattern, Cover sheet 14
May be provided with a vertical bending line (not shown), so that the shape of the bag 100 after filling with ink can be made a more stable shape closer to a hexagonal prism.

The filling of the bag 100 with the ink is performed in this case.
It is performed from the spout 20 before attaching the cap 24,
After filling the ink and before attaching the cap 24, a sealing material made of a laminated film may be sealed by heat bonding to the opening of the spout 20.

By adopting such a configuration, the cartridge-type bag 100 is flat and bulky in an empty bag state,
Storage and transportation can be performed efficiently, and the volume can be reduced when disposing after use. And the cartridge type bag 1
00 is made of a laminated film and is formed in a deformed gusset pouch type having gussets 6 and 7 on the upper and lower sides, and the lower gusset 7 has a lower inner central part toward both ends. And heat-sealed at the bottom seal portion 8 of a ship bottom shape which rises linearly.
However, since the bottom seal portion 8 is heat-sealed with the inverted bottom seal pattern in which the seal pattern of the bottom seal portion 8 is inverted, the cartridge type bag 100 filled with ink is
The bag itself has a hexagonal prism shape, is well compatible with the cover sheet, is compact and occupies little space for its capacity, and is a bag and is smart and has an excellent appearance similar to shape-retaining containers such as bottles . Further, since a ring-shaped leg portion is formed on the outer periphery of the bottom portion by the bottom seal portion, the self-sustainability is excellent and the handling becomes easy.

Further, since the ink filling portion is formed by the bag made of the laminated film and the spout 20, the sealing property is good and the preservability of the ink is good. When the cartridge type bag 100 is used in the printing apparatus, the spout 20 is provided, so that the bag can be easily attached to the printing apparatus and used as it is. Then, during use, the ink is sucked and discharged from the spout by a pump, and the bag 100 is separated from the adhesive portions 15 and 15 of the cover sheet according to the amount of the ink, and the bottom film is inward from the free bottom side. And the wall film on both sides narrows flat toward the center, gradually peels off from the cover sheet toward the top where the spout is joined, and finally the entire bag flattens. Therefore, no air enters the inside, the amount of remaining ink is small, and the ink can be used without waste.

FIG. 2 shows a second embodiment of the cartridge type bag according to the present invention.
FIG. 2 is a front view showing the configuration of the embodiment. The cartridge-type bag 200 shown in FIG. 2 is different from the cartridge-type bag 100 shown in FIG. 1 in that the shape of the bag main body is changed from the shape in which the gusset portions are provided at the top and bottom, except for the lower gusset portion. Is changed to a flat shape similar to the bottom of a four-sided seal type bag, and the length of the cylindrical cover sheet 14 which is releasably adhered to the outside of the bag is reduced to a length substantially similar to the entire length of the bag. It is modified and configured.

By adopting such a configuration, the cartridge type bag 200 loses its independence. However, during use, the bag 200 is moved from the bottom side where the adhesive portion with the cover sheet 14 is small in accordance with the amount of ink. , Flattening, and gradually increasing the cover sheet 1 toward the upper side where the spout is joined.
4 and finally the entire bag has a flattened shape. Therefore, air does not enter the inside of the bag 200, the amount of remaining ink is small, and the ink can be used effectively in a stable state. Also, since the gusset part of the bag is only at the top, the bottom film is omitted,
Since the productivity of bags can be improved, there is a cost advantage and an economical advantage.

FIG. 3 shows a third embodiment of the cartridge type bag according to the present invention.
FIG. 2 is a front view showing the configuration of the embodiment. The cartridge-type bag 300 shown in FIG. 3 is different from the cartridge-type bag 100 shown in FIG. 1 in that the shape of the bag body is changed from a shape in which gusset portions are provided at the top and bottom to a four-side seal type bag as a whole. At the same time, the length of the cylindrical cover sheet 14 which is releasably adhered to the outside of the bag is changed to a length substantially similar to the entire length of the bag.

By adopting such a configuration, the cartridge-type bag 300 is free from the gusset portion at the upper and lower sides of the bag as compared with the cartridge-type bag 100 shown in FIG. At the same time, the swelling of the bag when filled with ink is reduced, especially in the upper and lower areas.In order to fill the same volume of ink, it is necessary to increase the outer dimensions of the bag. Since the bottom of the bag 300 has the same configuration as that of the cartridge type bag 200 shown in FIG. 2, the bag 300 is flattened from the bottom side of the bag in accordance with the reduction of the ink, similarly to the cartridge type bag 200 shown in FIG. And gradually peels off from the cover sheet 14 toward the upper side where the spout is joined, and finally the entire bag has a flattened shape. Therefore, air does not enter the inside of the bag 300, the amount of remaining ink is small, and the ink can be used effectively in a stable state. In addition, since the upper and lower films of the gusset part of the bag are eliminated, both the top film and the bottom film can be omitted, and the productivity of the bag can be further improved.
It is even more economical.

FIG. 4 shows a fourth embodiment of the cartridge type bag according to the present invention.
FIG. 2 is a front view showing the configuration of the embodiment. The cartridge-type bag 400 shown in FIG. 4 is different from the cartridge-type bag 100 shown in FIG. 1 in that the shape of the bag body is changed from the shape in which the gusset portions are provided at the top and bottom to the multilayer extrusion tube 16.
And by changing the length of the cylindrical cover sheet 14 releasably adhered to the outside of the bag to a length close to the entire length of the bag, while changing the shape of the bag into a heat-sealed bag. It was done.

By adopting such a configuration, the cartridge-type bag 400 is free from independence because the gusset portions are removed from the upper and lower portions of the bag as compared with the cartridge-type bag 100 shown in FIG. At the same time, the swelling of the bag when filled with ink is reduced similarly to the cartridge type bag 300 shown in FIG. 3, particularly at the top and bottom of the bag. It is necessary to increase the external dimensions. In use, the bag 400 has substantially the same configuration on the bottom side as the cartridge-type bags 200 and 300 shown in FIGS. 2 and 3, and therefore, as described in the cartridge-type bag 300 shown in FIG. 3. To
In accordance with the reduction in the amount of ink, the bag squeezed flat from the bottom side of the bag, gradually peeled off from the cover sheet 14 toward the upper side where the spout was joined, and eventually the entire bag squashed flat. Shape. Accordingly, air does not enter the inside of the bag 400, the amount of remaining ink is small, and the ink can be used effectively in a stable state. Also, since the gusset part of the bag is eliminated in both the upper and lower parts, both the top film and the bottom film are omitted, the number of heat-sealed parts in the bag making is reduced, and the productivity of the bag is further improved. In this case, it is more advantageous than the case of the cartridge type bag 300 shown in FIG.

In the cartridge type bags 200, 300 and 400 shown in FIGS. 2, 3 and 4, since the bottom of the bag is flat, the bottom may be used as a filling port for contents. it can. In that case, since the width of the filling port is widened, the filling operation is facilitated, and the productivity can be improved.

Further, in the cartridge type bag of the present invention, when the contents are sucked and discharged from the spout, the bag may gradually flatten from the bottom side toward the upper portion to which the spout is joined. It is important in reducing the residual amount of contents,
For this purpose, a tubular tubular cover sheet for reinforcement is peelably adhered at an appropriate length from the top where the spout of the bag is joined to the bottom, and the peeling resistance is increased from the bottom to the top. The structure is such that the bonding area increases from the bottom to the top so as to gradually increase. As an example of such an adhesive pattern, in FIGS.
In each case, a vertically long inverted triangular pattern is shown, but the present invention is not limited to this.For example, a pattern in which the area gradually increases from the bottom to the top in a spot shape, or only the lower portion has an inverted triangular shape. Alternatively, an adhesive pattern having the same width, such as a rectangular shape, having a relatively large width from the middle portion to the upper portion may be used.

Further, by bonding the bag and the cover sheet with the bonding pattern as described above, a non-bonding gap is formed between the bonding portions. Therefore, it is also possible to insert and use the column member provided on the machine side in the non-adhesive space, and insert the cartridge type bag into another case provided with the column member and attach it to the machine. It is also possible to use. By adopting such a method of use, it is possible to further improve the setability to the machine and to use the bag so as to surely reduce the amount of contents remaining in the bag. In addition, the cartridge type bag of the present invention has been described in the example used for ink this time, but in addition to a liquid having good fluidity, a viscous liquid, and furthermore, it is housed in a tube container by adjusting suction force. It can be applied to viscous objects such as wasabi and mustard.

[0045]

As described above in detail, according to the present invention, a liquid ink, a viscous liquid, a powder, and other fluid inks and other contents are hermetically sealed and packaged, and the printing apparatus is used together with the bag at the time of use. , A cartridge-type bag that can be used by attaching it to other processing equipment, etc., and its structure can be simplified,
It is possible to improve productivity and reduce costs, the empty bags are not bulky, the efficiency of storage and transportation is good, the volume can be reduced at the time of disposal after use, and even if the contents are filled with ink, It has good storage characteristics and is easy to attach to a printing device.During use, the ink inside the bag does not come into contact with air,
Provides cartridge-type bags that can be used in a stable state and reduce the amount of ink remaining in the bags after use, and that are excellent in overall performance, suitability for use, economy and disposal. The effect that can be performed.

[Brief description of the drawings]

FIG. 1 is a front view showing a configuration of a first embodiment of a cartridge type bag according to the present invention.

FIG. 2 is a front view showing the configuration of a second embodiment of the cartridge type bag according to the present invention.

FIG. 3 is a front view showing a configuration of a third embodiment of the cartridge type bag according to the present invention.

FIG. 4 is a front view showing the configuration of a fourth embodiment of the cartridge-type bag according to the present invention.

[Description of Signs] 1, 1 'wall surface film 2 top film folded portion 3 bottom film folded portion 4 top film cutout portion 5 bottom film cutout portion 6, 7 gusset portion 8 bottom seal portion 9 side seal portion 10 projecting portion DESCRIPTION OF SYMBOLS 11 Upper seal part 12 Upper seal part 13 Upper gusset part back side seal part 14 Cover sheet 15 Adhesive part 16 Multilayer extrusion tube 20 Spout 21 Tube part 22 Adhesive base 23 Flange 24 Cap 100, 200, 300, 400 Cartridge type bag

 ──────────────────────────────────────────────────続 き Continued on front page F term (reference) 3E064 AB25 AB26 BA17 BA27 BA28 BA29 BA30 BA36 BA55 BA60 BC04 BC07 BC08 BC18 BC20 EA01 EA18 EA30 FA04 FA05 FA06 GA01 HF02 HF10 HG01 HM01 HN65

Claims (4)

[Claims] 1. A bag in which a fluid content is hermetically packaged, the bag comprising a laminated film bag having a spout made of a plastic molded body at one end, and a side of the bag. And a cylindrical cover sheet attached so as to cover the outer periphery of the portion, wherein the cover sheet is releasably adhered to the surface of the bag. 2. The peel resistance of the cover sheet gradually increases on the surface of the bag from the other end opposite to the end where the spout is attached to the end where the spout is attached. The cartridge type bag according to claim 1, wherein the cartridge type bag is adhered so as to be large. 3. The cartridge-type bag according to claim 1, wherein the cover sheet is formed of a material having higher rigidity than a laminated film of the bag. 4. The laminated film bag is formed in a form having a gusset portion formed by folding a top film or a bottom film inward and inserting the upper film or the bottom film between upper and lower portions of two front and rear wall films. The body is formed by heat-sealing both side edges of the front and rear wall films with side seals, and the lower gusset is heat-sealed with a seal pattern having a shape that imparts autonomy. Of the gussets on the front and rear sides of the upper gusset, on one of the folds, a film is provided on both sides of the gusset, extending the wall film and the upper surface film opposed thereto, and a protrusion is provided. The cartridge-type bag according to any one of claims 1 to 3, wherein a spout made of a plastic molded body is attached to an upper portion of the projecting portion.