JPH07156964A - Package body for fluid substance and manufacture thereof, and package bag for such package body and manufacture thereof - Google Patents

Abstract

PURPOSE:To make taking-out of contents in small quantities possible, and to seal up automatically an outlet for the taking-out without using a plug or a clip by a method wherein a take-out passage is formed by fixing two pieces of soft film together for fast sticking on two heat sealing lines in narrow width. CONSTITUTION:Two strips of soft film tapes 7 and 8 are interposed between the inside faces on the upper edges of bag body films 1 and 2, and fixation by heat sealing is applied to peripheral heat sealing parts 3, 4 and 5 and a heat sealing part 10 for a passage so that a take-out passage 9 extending from the inside of the bag body to the periphery of the bag body can be formed to a part in a four-layer laminated structure on the upper part of the bag body. Each of the soft film tapes 7 and 8 is individually fixed by heat sealing to each of the bag body films 1 and 2 with heat seals 12 and 13 on an inlet 11 inside the bag body on the take-out passage 9. After the contents are squeezed out with the upper part of the take-out passage unsealed, the take-out passage is pressed from both sides with fingers, and thereby the two soft film tapes can be stuck together without letting the contents flow out to the outside even though the bag is put upside down.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a package for storing a fluid product, which is sold as a bag, and which can be taken out by a consumer from the bag in a package, and a fluid substance package used for the package. Body packaging bag.

[0002]

2. Description of the Related Art Liquid or slurry products, such as milk, soy sauce, oil, cosmetics, etc., which have been sold in a container with a stopper such as a glass or hard plastic bottle, have recently been sold in cartons, It has come to be packaged in soft plastic sheet bags and sold. However, a consumer who purchases a product stored in a soft plastic bag needs to clip the cutting outlet of the bag after cutting the end of the bag and taking out the liquid from this by dispensing.
There are also soft bags to which a hard spout is attached, but this has the drawback that the manufacturing process is complicated and the operation of removing and tightening the spout is troublesome.

[0003]

DISCLOSURE OF THE INVENTION The present invention provides a pouch bag which does not have such drawbacks and allows the contents to be taken out in a small amount, and the take-out port is automatically closed and sealed without using a stopper or a clip. The purpose is to do.

[0004]

Means for Solving the Problems The present inventor has found that when two thin soft films are stacked, the adhesiveness is good as if they were adhered with an adhesive as seen in a wrap film. When two adherent soft films are fixed by two narrow fusion lines, the take-out passage formed between the two fusion lines automatically adheres to the soft film surface.
We have found the surprising fact that liquid cannot flow through this withdrawal passage without a stopper unless a certain pressure is applied to the liquid. When the take-out passage obtained by polymerizing two films is used inside the bag, the more the pressure is applied to the bag, the stronger the pressure is applied from the outside of the polymerized soft film in the take-out passage. It was observed that the seal was rather stiff and liquid could not be taken out between the soft films. The present inventor can cut off the internal pressure applied from the outside of the take-out passage by fusion-fixing the soft film at the edge of the inner entrance of the take-out passage provided inside the bag to the outside bag film, and also to open the bag. When pressing the bag part with the part facing down, the bag film near the entrance on the inner side of the take-out passage has an outer space, and the soft film at the entrance of the take-out passage is pulled outward accordingly, so that the bag is taken into the take-out passage. There is a gap. It has been found that the fluid substance is introduced into this gap by the pressure of the hand hanging on the bag, and the expansion of the gap of the take-out passage gradually extends to the outer outlet of the take-out passage to take the content liquid out of the bag. In this way, the fluid substance can be taken out little by little, and once the take-out passage is closed by fingers after taking it out, the content liquid does not flow out to the outside even if the bag is turned upside down without being clipped. Find out that
The present invention has been completed based on these findings.

That is, the aspect of the present invention comprises the following items. (1) A package in which a flowable substance is contained in a bag formed by stacking two bag films and fusing the peripheral edges together, and the same as the upper edge inside the upper edge of the bag film. A four-layer laminated structure on the upper part of the bag body, in which two soft film tapes having a length are sandwiched, the soft film is fusion-bonded and fixed at the peripheral edge of the bag film, and the soft film is laminated inside. In a part of, a passage fusing part for integrally fusing the four laminated structure is formed in a shape that leaves a take-out passage reaching from the inside of the bag to the peripheral edge of the bag, and at the inlet of the take-out passage on the inside of the bag, A fluid substance packaging body, characterized in that each of the two soft films and the outer bag body film are separately fused and fixed. (2) A bag in which two bag films are superposed on each other, and a part of the peripheral edge is left as a filling port and the other peripheral edges are fused, and the upper edge is inside the upper edge of the bag film. Two soft film tapes having the same length as the above are sandwiched, the soft film is fusion-bonded and fixed at the peripheral edge of the bag film, and the soft film is further laminated on the inside. In a part of the structure, a passage fusion-bonding portion for integrally fusing the four-layered laminated structure is formed in a shape that leaves a take-out passage reaching from the inside of the bag to the peripheral edge of the bag, and at the inlet of the take-out passage on the inside of the bag. Filling the inside of the bag with a fluid substance from the filling port of the bag in which each one of the two soft films and the bag film on the outside thereof are separately fused and fixed, and then sealing the filling port. A method for producing a fluid substance package, comprising: (3) A bag body obtained by stacking two bag films in a stack and fusing the peripheral edges, and sandwiching two soft film tapes having the same length as the upper edge inside the upper edge of the bag film. Then, the soft film is fusion-bonded and fixed at the peripheral edge of the bag film, and further, the soft film is laminated on the inner side of the four-layer structure portion on the upper part of the bag body from the inside of the bag to the peripheral edge of the bag. A passage fusing part for integrally fusing the four-layered laminated structure is formed in a shape that leaves the reaching passage reaching, and furthermore, at the entrance on the inside side of the taking-out passage bag body, there is one of each of the soft films and the outside thereof. A packaging bag for a fluid substance packaging body, characterized in that the bag body film and the bag body film are separately heat-sealed together. (4) A soft film having the same length as the upper edge inside the upper edge of the bag film, which is a bag formed by stacking two bag films on top of each other and fusing the peripheral edges leaving a filling port. The soft film is fused and fixed at the peripheral edge of the bag film by sandwiching two tapes, and further, the soft film is laminated on the inside of the bag in the four-layer structure portion on the upper part of the bag in which the soft film is laminated. A passage fusing part integrally fusing the four-layered laminated structure is formed in a shape that leaves a take-out passage reaching the peripheral edge of the bag body.
A packaging bag for a flowable substance package, characterized in that, at the entrance on the inside of the take-out passage bag body, one of each of the soft films and the bag film on the outside thereof are heat-sealed separately. (5) The packaging bag for a fluid substance package according to item 4, wherein the filling port is provided with a hard plastic chuck. (6) The method for producing a fluid substance package according to item 2, wherein the filling port is sealed by heat sealing. (7) The packaging bag for a fluid substance package according to item 3, wherein a tip end portion of the soft film protrudes into the bag body from a position where the soft film and the bag film on the bag body side entrance of the take-out passage are fused and fixed. (8) The packaging bag for a fluid substance package according to item 4, wherein the fusion-fixing position of the soft film and the bag film at the entrance on the inside of the bag body of the take-out passage is formed together with heat sealing over the entire width of the bag film. . (9) The packaging bag for a fluid substance package according to item 3, 4, 7, or 8, wherein the bag body is a self-standing bag having a gusset fold structure at the bottom. (10) Continuously feeding the two soft film tapes by aligning the edges with both edges of the film for band-shaped bag while feeding the film for band-shaped bag in the heat sealing step,
The inner edge of the soft film tape is continuously heat-sealed to be fused and fixed to the film for the band-shaped bag body, and then the film for the band-shaped bag body is half-folded to polymerize the soft film tape to form the upper edge. In the shape of leaving a passage for taking out from the inside of the bag body to the peripheral edge of the bag body, in a part of the four-layered structure of the upper edge of the strip-shaped bag body film laminated with the two soft film tapes A fluid substance package comprising four laminated structures integrally fused at regular intervals to form a take-out passage and then fusing at each width of the bag to form a side edge fused portion. For manufacturing packaging bags for food. (11) Continuously feeding two soft film tapes by aligning the upper edges of the strip-shaped bag films while feeding out the two strip-shaped bag films in the heat sealing step,
The inner edge of the soft film tape is continuously heat-sealed to be fused and fixed to the film for the band-shaped bag body, and then the two films for the band-shaped bag body are polymerized with the soft film tape surfaces aligned. The upper edge and the lower edge are heat-sealed to the upper edge and the lower edge of the film for a band-shaped bag body, leaving a filling port in a part of the upper edge or the lower edge, and two soft film tapes are sandwiched inside. The four-layer laminated structure is integrally formed at regular intervals in a shape that leaves a take-out passage reaching from the inside of the bag body to the peripheral edge of the bag in a part of the four-layer laminated structure at the upper edge of the laminated film for the bag-shaped bag portion. A method for manufacturing a packaging bag for a fluid substance package, comprising fusing to form a take-out passage, and then fusing for each width of the bag to form a side edge fused portion.

The present invention is characterized by an automatic sealing mechanism for a take-out passage, which is provided inside the bag body and is composed of two superposed soft films. That is, after taking out the fluid substance inside the bag body from the take-out passage into a dispenser,
The present invention is characterized by a packaging bag or a packaging body that is automatically sealed without a clip or the like. The plastic film used in the bag film of the present invention can be used without particular limitation as long as it is a thermoplastic resin film having a certain level of strength. For example, a resin film such as polyethylene, polypropylene, polyester, nylon, etc. is used. You can When a high melting point and strong resin film is used, a laminated film in which a heat sealing resin film having a low melting point such as polyethylene or carboxylic acid modified polypropylene is laminated is used in order to improve heat sealing processability. be able to. The bag film forming the bag of the present invention preferably has a certain degree of elasticity as a pouch bag, and can be achieved by appropriately selecting the thickness of the film according to the strength of the resin employed. it can. The bag film of the present invention has a thickness of 40 to 1000 μm, preferably 70
Can be up to 300 μm. Further, depending on the fluid material contained in the bag of the present invention, a film having oxygen permeation resistance, for example, ethylene-vinyl acetate copolymer, metal laminate or the like can be used.

The length of the soft film used for the take-out passage having the automatic sealing function of the present invention is the same as the width of the upper edge of the bag film, and the width depends on the material of the soft film and the physical properties of the fluid material. The thickness can be appropriately selected, but it can be 5 to 50 mm, preferably 10 to 35 mm, and particularly preferably 15 to 25 mm. The soft film is preferably a resin film having a heat-sealing softening point of 180 ° C. or lower, preferably 150 ° C. or lower, particularly preferably 130 ° C. or lower,
In addition, the thickness is 10 to give the film adhesion.
A resin film of 300 μm, preferably 20 to 100 μm, particularly preferably 20 to 80 μm is desirable. If the thickness is large, the action as the self-sealing passage is reduced. Also,
The soft film used in the self-sealing passage of the present invention may be made of any kind of resin, for example, high density polyethylene, polypropylene, etc., may be used as the soft film of the present invention when the thickness of the film is as thin as 50 μm or less. However, when the thickness is increased, the soft film of the present invention, as a soft film with good adhesion without stiffness, such as low density polyethylene, linear low density polyethylene,
A soft and flexible resin film such as soft polyvinyl chloride or ethylene-vinyl acetate copolymer, or a blend of two or more kinds of resins can be used. Among these, those used for wrap film applications such as low-density polyethylene, linear low-density polyethylene, and ethylene-vinyl acetate copolymers are particularly desirable in terms of excellent adhesion on the film surface, and particularly elastic. It is desirable to have a thin and good adhesion. Further, since the soft film used in the take-out passage of the present invention needs to be sandwiched between the bag films and firmly fused to each other, it is desired that the heat-sealing property with the bag film is also good. Therefore, it is particularly desirable to select a resin film that is easily heat-sealed with the laminated resin layer inside the bag film.

The fluid substance used in the present invention is not particularly limited as long as it is a substance that flows when tilted, and may be a liquid or slurry substance such as mayonnaise, soy sauce, edible oil, liquid detergent, milk, cosmetics, sesame, seasoning. Fees can be used. In the package of the present invention, the two inner soft films are formed outside the bag film so as to form the take-out passage inside the two thin soft films sandwiched and fixed to the upper bag film of the packaging bag. From the inside of the bag formed by the passage fusion-bonding part 10 to reach the peripheral edge of the bag body by thermocompression bonding from the inside of the bag body, including the two bag films. At the entrance of the take-out passage on the inside of the bag body, the soft film and the bag film on the outside thereof are separately heat-sealed and sealed. By integrally heat-sealing the four films, an extraction passage is formed between the polymerized soft films inside. Further, when the four films are fused together as described above to form the take-out passage, three gap passages are formed between the four films. That is, a passage is formed between the two soft films and one passage is formed outside the two soft films. In the present invention, each of the two soft films at the entrance from the inside of the bag body of the passage and the bag film outside thereof are the heat seals 12 and 1 shown in FIG.
3, the soft film tape 7 and the bag film 1 and the soft film tape 8 and the bag film 2 are separately fused and fixed to each other, so that the middle of the three gap passages is Only the interstitial passages between the soft films can be the take-out passages communicating from the inside of the bag to the outside. The separate fusion fixing between the soft film and the bag film is achieved by limiting the take-out passage only between the two soft films, and thus sealing without plugs or clips due to the adhesion of the two soft films. It is an important configuration for achieving the function that can be performed (water is not spilled even when inverted).

Furthermore, the separate fusion-bonding of the two soft films of the present invention also plays an important role when the fluid material in the bag is taken out. If there is no separate fusion and only the extraction passage communicates with the outside, the outer peripheral edge of the extraction passage is cut to open the extraction passage and then the bag is turned upside down to extract the fluid substance. When the bag body is gripped and pressed with the fingers, the internal pressure is applied from the outer surface of the take-out passage, and as a result, the stronger the pressure is applied to the bag body in order to take out the fluid substance therein, the more the pressure of the take-out passage is increased. The pressure exerted from the outside is so great that the discharge passage becomes more and more tightly adhered, making it impossible for the flowable substance to pass through the discharge passage. In addition, the bag body film at the end of the bag body portion spreads between the bag body film 1 and the bag body film 2 above the entrance of the take-out passage when the bag body portion is pressed, and is fixed to this. The soft film tapes 7 and 8 in the take-out passage are also spread out, and a gap is formed between the two soft films in this portion. Liquid under pressure enters this gap,
It is possible to push open one after another between the two soft films to which the tip of the invading liquid strongly adheres, and follow the take-out passage. As a result, the fluid substance inside the bag of the packaging body of the present invention, by pressing the bag portion upside down with a finger, it is possible to take out the necessary amount of the fluid substance inside through the passage, After taking out, by simply crimping the take-out passage with a finger lightly (in most cases, even if it is left as it is), the soft films are strongly adhered to each other and the take-out passage can be completely closed.

In the package of the present invention, no stopper, clip, etc. are required at all for the purpose of sealing the end of the take-out passage after cutting and opening the take-out passage, and taking out the fluid substance into the dispenser. The fluent material does not spill out of the extraction passage. For example, turn the bag with the take-out passage opened upside down, hold the bag firmly with your hand, and squeeze out the fluid substance inside the bag to take it out. Then, the take-out passage is closed and the outflow of the fluid substance from the take-out passage is stopped. At that time, press the outside of the take-out passage with your finger to squeeze the substance in the take-out passage up or down and press the take-out passage to bring it into close contact. Never leaks out. When the bag is squeezed and crushed by pressing it again in this inverted state, the same action mechanism opens the end of the bag body take-out passage, allowing the flowable substance to be dispensed out of the bag in the required amount. You can take it out. The size of the extraction passage of the packaging bag of the present invention is the size of the bag,
Although it depends on the viscosity of the flowable substance, for example, when filling water with a 5 cm long and 5 mm wide take-out passage, when pulling out water, the bag part cannot be pressed strongly by hand. And the soft film is so tight that water does not get out. Therefore, in the case of water, the size of the take-out passage is 3 to 15 mm in width, preferably 5 to 8 mm, and 3 to 10 in length.
A withdrawal passage of cm, preferably 4-8 cm can be used. If the take-out passage is short and too wide, the flowable substance easily leaks from the take-out passage after the flowable substance is taken out into a small amount. Depending on the viscosity of the flowable substance and the nature of the soft film, the size of this take-out passage is determined by trial and error when the bag is turned upside down and the contents flow out, and when the force is released, the liquid flows out instantaneously. The width and length of the withdrawal passage can be selected according to preference so that it stops.

In the above-mentioned package of the present invention, depending on the kind of the fluid substance to be stored and the materials of the bag film and the soft film, the contents are opened to the outside when the extraction passage is simply pressed and stored after opening. May leach out. In such a case, in order to further strengthen the action of the valve mechanism by the soft film, the tip end of the soft film is removed from the fusion fixing position of the soft film and the bag film at the entrance on the inside of the bag body of the take-out passage. The structure can be made to protrude inside the body. In this structure, the tip portion of the soft film protrudes from the take-out passage. When the pressure inside the bag increases, the pressure acts on the tip pieces so as to come into close contact with each other from the outside of the tip pieces of the two soft films, and as a result, even if some pressure is generated inside the bag, Flowable material does not spill out. Next, when the substance is taken out, pressure is applied to the package bag with a finger in a direction perpendicular to the take-out passage 9, and the tip of the soft film is inverted to the take-out passage side, or both soft films are opened. The fluid substance can be made to flow out by closely adhering to the inner surface side of the bag film. The length of the protruding tip of the soft film can be selected to be 0 to 25 mm, preferably 3 to 15 mm. If it exceeds 25 mm, even if the take-out passage 9 is pinched and the take-out passage is opened, the force thereof does not reach the tip, so that the tip piece may not be opened. It is desirable that the fusion-bonded portion at the periphery of the package of the present invention has a fusion-bonded width of 5 to 10 mm. If it is less than 5 mm, the strength of the fusing part is lowered and the self-supporting property of the bag is lowered. The packaging bag of the present invention is the same as the bag used for the packaging body of the present invention, and is different only in that a part of its peripheral edge is opened in order to fill the fluid substance. This bag can be manufactured using a long film as a raw material by a general bag manufacturing process.

That is, while the film for a band-shaped bag is being fed out, soft film tapes are overlapped on both end edges of the film, and the inner edges are continuously heat-sealed and fixed. Next, this is subjected to half-fold polymerization, and thermocompression bonding for forming extraction passages is performed at regular intervals, and the side edge of the bag body is melt-cut, whereby the packaging bag of the present invention can be manufactured. Further, instead of half-folding in the above-mentioned manufacturing method, a soft film is similarly heat-sealed separately to two strip-shaped bag films, and the filling port is left in either one of the heat-sealing of the upper edge and the lower edge. The packaging bag of the present invention can be manufactured by heat-sealing. This filling port is for filling the products to be stored and then sealing with a heat seal. The packaging bag of the present invention can be used in an automatic packaging process. In the case of automatic packaging, a filling step may be incorporated in the packaging bag manufacturing process of the present invention. Further, as described above, the fusion of the soft film on the inner side of the bag body of the take-out passage and the bag film is performed over the entire width of the bag body in the first step, so that the process is simplified and the thermocompression bonding for forming the take-out passage is performed. It is desirable because it does not need to be aligned with, and has the effect of stabilizing the fixing of the bag film and the soft film. Further, a self-supporting bag having a widened bottom such as a square bottom type or a fan bottom type having a known gusset folding structure or the like can be formed on the lower part of the packaging body of the present invention and the packaging bag of the present invention. It is particularly preferable that the packaging body has a self-supporting structure because the packaging body can be handled almost like a bottle container. The present invention has an advantage that the contents do not flow out even when such a self-supporting bag is accidentally collapsed.

[0013]

The present invention will be described in more detail with reference to the drawings of the embodiments. Example 1 FIG. 1 and FIG. 2 are examples of the package of the present invention, in which two bag films 1 and 2 are superposed on each other and their peripheral edge fusion portions 3, 4 and 5 are fused. Liquid bag mayonnaise 6 in a bag
Which is a package containing the two soft film tapes 7 and 8 of the same length as the upper edges and having a width of 20 mm, which are sandwiched inside the upper edges of the bag films 1 and 2. , 8 are fused and fixed at the peripheral edge fusion portions 3 and 4 of the bag film, and the soft film tapes 7 and 8 are further laminated on the inside to form a part of the four-layer structure at the upper part of the bag body. A passage fusing part 10 for integrally fusing the four laminated structure is formed in a shape that leaves the take-out passage 9 reaching from the inside of the bag body to the peripheral edge of the bag body, and at the inlet 11 of the take-out passage 9 inside the bag body, The two soft film tapes 7 and 8 and the bag films 1 and 2 on the outside thereof are separately fused and fixed by heat seals 12 and 13 over the entire bag width. That is, the heat seal 12 and the inside entrance 11 of the bag body are polymerized. The passage fusion-bonding portion 10 is formed by integrally bonding the four laminated structures of the soft film tapes 7 and 8 and the bag films 1 and 2 by thermocompression bonding with a heat plate. The heat seals 12 and 13 over the entire length heat seal the bag body film 1 and the soft film tape 7, and further heat seal the bag body film 2 and the soft film tape 8. These heat seals form a fusion-bonded portion of the inlet 11 on the inside of the bag body of the take-out passage 9.
As a result, the take-out passage through which the mayonnaise comes out can be limited only between the soft film tape 7 and the soft film tape 8. It suffices to apply the heat sealing only to the width of the inside entrance 11 of the bag body, but the bag manufacturing process is simpler if it is applied over the entire width of the bag body. The lower part of the bag has a gusset-folding structure 14 so that the package can stand on its own. In this embodiment, the extraction passage 9 is
It is provided at the left end of the upper edge, and it can be provided at the center of the upper edge of the bag. In this case, it is necessary to provide passage fusion-bonding portions 10 on both sides of the take-out passage 9. In addition, the take-out passage 9
The width and length can be narrowed if the viscosity of the content liquid is low and long, and wide and short if the viscosity is high. The size of this take-out passage can be appropriately selected depending on the type or thickness of the soft film tapes 7, 8 of the take-out passage 9. The passage fusion-bonding portion 10 preferably has a constant width, for example, a width of 5 to 20 mm, in order to make this portion elastic, rather than a mere linear heat seal. Further, it is desirable that the peripheral edge of the bag body is fused and fused with a width of 5 mm from the standpoint of self-sustainability. FIG. 3 is a perspective view of the packaging body of the present embodiment, which is opened and then self-supported by crimping from the front and back of the take-out passage 9 with fingers. When the mayonnaise is taken out from this packaging bag, the peripheral passage fusion portion 3 having the extraction passage 9 is directed downward and the peripheral fusion portion 3 is vertically pressed with one thumb while tilting the bag upside down. When force is applied to release the bag and the bag is grasped with excess fingers, the mayonnaise will flow out of the take-out passage 9, and when the necessary amount is taken out, the force is released to make the bag self-supporting and then the take-out passage 9
Press with your finger to close it. At this time, the mayonnaise remaining in the take-out passage 9 can be returned to the bag by squeezing it with two fingers. Even if there is no stopper, the soft film tape in the take-out passage 9 is in close contact, so that the mayonnaise does not spill out of the take-out passage 9 even when the bag is inverted, and the mayonnaise can be kept sealed in the bag.

Example 2 The bag used in Example 1, the point that there is no mayonnaise, the point that the upper edge is open, and the tips of the soft film tapes 7 and 8 protrude below the position of the heat seals 12 and 13. The structure is the same except that 4 and 5 show a state in which the bag of this embodiment is folded. Bag film 1,
In a bag formed by superimposing two sheets of two on top of each other and fusing the peripheral fusion-bonded portions 3 and 4, two flexible sheets having the same length as the upper edge are provided inside the upper edges of the bag films 1 and 2. The film tapes 7 and 8 are sandwiched, and the soft film tapes 7 and 8 are fused and fixed at the peripheral edge fusion portions 3 and 4 of the bag film.
The soft film tapes 7 and 8 are laminated inside, and a four-layered laminated structure is integrally formed in a part of the four-layered laminated structure on the upper part of the bag body, leaving a take-out passage 9 reaching from the inside of the bag body to the peripheral edge of the bag body. A passage fusion-bonding portion 10 is formed to be fused to the inside of the bag body at the entrance 11 of the take-out passage 9 between the soft film tapes 7 and 8 and the bag films 1 and 2 outside thereof.
They are fused and fixed by heat seals 12 and 13 over the entire width of the bag body. After this fusion fixing, the lower edges of the tips of the soft film tapes 7, 8 are heat-sealed 12, 13
It is more protruding. The passage fusion-bonding portion 10 is formed by integrally bonding the four laminated structures of the soft film tapes 7 and 8 and the bag films 1 and 2 by thermocompression bonding with a heat plate. The heat seals 12 and 13 over the entire length heat seal the bag body film 1 and the soft film tape 7, and further heat seal the bag body film 2 and the soft film tape 8. These heat seals form a fusion-bonded portion of the inlet 11 on the inside of the bag body of the take-out passage 9.
As a result, the take-out passage through which the mayonnaise comes out can be limited only between the soft film tape 7 and the soft film tape 8. It suffices to apply this heat seal only to the width of the inside entrance 11 of the bag body, but it is easier to manufacture the bag by applying the heat seal over the entire width of the bag body. In the bag of this embodiment, the lower edges of the soft film tapes 7 and 8 form a protruding portion 16 that protrudes into the inside of the bag body from below the take-out passage 9, and the protruding portion 16 forms a valve mechanism. It is possible to completely prevent the stored substance from flowing out. When the bag is held upside down and the internal liquid pressure exceeds a certain pressure, the ends of the soft film tapes 7 and 8 are opened, for example, in the form of being turned inside the take-out passage, and the contents can be taken out. By appropriately selecting the length of the protruding portion, the tightness of the package and the outflow pressure of the fluid substance can be easily adjusted. The lower part of the bag body has a gusset fold structure 14, and the left and right corners of the double fold formed by the gusset fold are inclined at an angle of 45 degrees for forming a corner bottom, as shown in the figure. Are provided at a total of 4 locations. The corner bottom heat seal 15 allows the packaging bag to be self-supporting. A self-supporting structure other than the square bottom structure of the present embodiment, for example, a well-known bottom gusset folding structure can be adopted. In this embodiment, the extraction passage 9
Is provided at the left end of the upper edge, and it can be provided at the center of the upper edge of the bag. In this case, it is necessary to provide passage fusion-bonding portions 10 on both sides of the take-out passage 9. Passage fusion section 10
Is preferable to have a certain width, for example, a width of 5 to 20 mm, in order to make this portion elastic, rather than a mere linear heat seal. Also, the fusing and fusion of the periphery of the bag is 5 mm.
It is fused in the width of. The open portion of the upper edge of this bag is a filling port, and after the fluid substance is put in from the filling port, the upper edge can be heat-sealed to manufacture a package. The method of using this package is the same as in Example 1. By filling from such a large filling port, the filling speed in the automatic packaging process is increased, and the package can be efficiently manufactured.

Embodiment 3 FIG. 6, FIG. 7 and FIG. 8 are provided with chuck seal uneven portions 17 and 18 at the lower filling port. In this bag, a take-out passage is formed by a passage fusion-bonding portion 10 on the upper edge by a soft film. After opening the zipper seal of this bag, filling the fluid substance and closing the zipper seal, a package similar to that of the first and second embodiments can be manufactured. This bag is different in that it has a function of removing the chuck seal and refilling when the contents are exhausted.

Example 4 The strip-shaped bag body film is fed to the heat-sealing step (A), and the soft film tapes 7 and 8 are supplied to both edges of the strip-shaped bag body film 1 as shown in FIG. 9 (s). Laminated in a cross-section structure, heat-sealing both edges of each soft film tape 12,
The pieces 22, 13, and 23 are continuously heat-sealed to form the sectional structure of FIG. Next, in the half-folding step (B), the strip-shaped film is half-folded from the center to form the cross-sectional structure shown in FIG. 9B. The passage fusion-bonding part 10 is applied in the fusion-bonding step (C) on the soft film tape width p of the half-folded upper edge. Then, in the fusing step (D), the side edges of the bag body are cut while being fused to form the peripheral edge fused portions 3 and 4. The bag manufactured here is the bag shown in FIG. 10, and the upper edge is opened as a filling port 20 for the fluid substance. Since the bag film and the soft film tape are separately fused by the heat seals 22 and 23, a flowable substance does not enter between the bag film and the soft film tape at the time of filling, which is convenient. is there. Further, since the edge of the filling port has a double structure and is elastic, it is convenient when the filling port is opened in the filling operation. The passage fusion-bonding part 10 is composed of a triangular-side passage fusion-bonding part 10 on the left edge side and a triangular-side passage fusion-bonding part 10 on the center side, and the take-out passage 9 is formed by the inner edge between the both triangular shapes. Has been done. The upper edge of the bag part can be left open and the items can be filled at high speed from this upper edge. In the half-folding step (B) of the manufacturing process, the bottom gusset folding step of FIG. 5 is performed, and in the fusion bonding step (C), the corner bottom heat seal 15 as shown in FIG. 4 is applied to the gusset folding portion. be able to. As a result, the bottom of the packaging bag has a square bottom shape, and the packaging bag can be self-supporting. Instead of the strip-shaped film of Example 4, two strip-shaped films each having a shape obtained by cutting the strip-shaped film in half at the center line can be used to manufacture a bag almost identical to that of Example 4. In this case, a step of fusing the lower edge by heat sealing is required instead of the half-folding step. In this case, the lower edge or the upper edge is heat-sealed, leaving the position corresponding to the filling port, depending on where the filling port is located. The heat sealing of the filling port can be performed after the filling of the flowable substance.

[0017]

According to the present invention, the contents can be taken out from the package in a small amount, and the contents can be lightly sealed without using a stopper. Even if the soft film package of the present invention is laid on its side, there is an advantage that the fluid substance therein does not leach out. INDUSTRIAL APPLICABILITY The present invention is a package that is mechanically packaged and sold by an automatic packaging process such as a pouch bag, and moreover, a user can take out the contents into a dispenser even if there is no stopper, and take out the outlet with a stopper or a clip. Even if it is not sealed, it has an advantage that it can be naturally sealed against normal pressure.

[Brief description of drawings]

FIG. 1 is a front view of an embodiment of a package of the present invention.

FIG. 2 is a cross-sectional view of an embodiment of the packaging body of the present invention.

FIG. 3 is a perspective view of the packaging body of the present invention.

FIG. 4 is a front view of an embodiment of the packaging bag of the present invention.

FIG. 5 is a sectional view of an embodiment of the packaging bag of the present invention.

FIG. 6 is a front view of another embodiment of the packaging bag of the present invention.

7 is a sectional view taken along line aa of the embodiment of FIG.

8 is a partial sectional view taken along line bb of the embodiment of FIG.

FIG. 9 is an explanatory view of the manufacturing process of the packaging bag of the present invention.

FIG. 10 is a front view of another embodiment of the packaging bag of the present invention.

[Explanation of symbols]

 1 Bag Film 2 Bag Film 3 Edge Fusion Part 4 Edge Edge Fusion Part 5 Edge Edge Fusion Part 5 Mayonnaise 7 Soft Film Tape 8 Soft Film Tape 9 Extraction Passage 10 Passage Fusion Part 11 Inside Bag Entrance 12 Heat Seal 22 Heat Seal 13 Heat Seal 23 Heat Seal 14 Gazette Folding Structure 15 Square Bottom Heat Seal 16 Overhanging Part 17 Chuck Seal Convex Part 18 Chuck Seal Recess 20 Filling Port A Heat Sealing Process B Half-Folding Process C Fusing Process D Fusing Process

Claims (11)

[Claims] 1. A packaging body in which a flowable substance is contained in a bag formed by stacking two bag films and fusing the peripheral edges thereof, and an upper edge inside the upper edge of the bag film. Two soft film tapes having the same length as the above are sandwiched, and the soft film is fused and fixed at the peripheral edge of the bag body film.
A passage for integrally fusing the four-layer laminated structure in a shape that leaves a take-out passage reaching from the inside of the bag to the peripheral edge of the bag in a part of the four-layer laminated structure in the upper part of the bag in which the soft film is laminated inside A fusion-bonding portion is formed, and at the inlet of the take-out passage on the inner side of the bag body, each one of the two soft films and the bag film on the outside thereof are separately fused and fixed. Liquid substance packaging. 2. A bag formed by stacking two bag films on top of each other and fusing the other edges while leaving a part of the edges as a filling port, the inside of the upper edge of the bag film. Two soft film tapes having the same length as the upper edge are sandwiched, and the soft film is fused and fixed at the peripheral edge of the bag film, and further, the soft film is laminated on the inside of the bag upper part. In a part of the four-layered laminated structure, a passage fusion-bonding portion for integrally fusing the four-layered laminated structure is formed in a shape that leaves a take-out passage from the inside of the bag body to the peripheral edge of the bag body. At the side entrance, the flowable substance is filled into the bag through the filling port of the bag in which each one of the two soft films and the bag film on the outside thereof are separately fused and fixed, and then the filling port. A method for producing a fluid substance package, which comprises: 3. A bag formed by stacking two bag films on top of each other and fusing the peripheral edges together, and two soft film tapes having the same length as the upper edge inside the upper edge of the bag film. And the soft film is fusion-bonded and fixed at the peripheral edge of the bag film, and the soft film is laminated on the inside. A passage fusing part for integrally fusing the four-layered laminated structure is formed in a shape that leaves a take-out passage reaching the peripheral edge, and further, at the entrance on the inside side of the take-out passage bag body, one of each soft film is formed.
A packaging bag for a fluid substance package, characterized in that a sheet and a bag film on the outside thereof are separately heat-sealed. 4. A bag body obtained by superposing two bag films on top of each other and fusing the peripheral edges of the bag films together leaving a filling port and having the same length as the upper edge inside the upper edge of the bag film. Two soft film tapes are sandwiched, and the soft film is fusion-bonded and fixed at the peripheral edge of the bag film, and further, the soft film is laminated on the inside of the bag at a four-layered structure portion. A passage fusing part for integrally fusing the four laminated structure is formed in a shape that leaves a take-out passage reaching from the inside of the body to the peripheral edge of the bag, and further, at the inside entrance of the take-out passage bag, each of the soft films is formed. A packaging bag for a fluid substance package, characterized in that one sheet and a bag film on the outside thereof are heat-sealed separately. 5. The packaging bag for a fluid substance package according to claim 4, wherein a hard plastic chuck is provided at the filling port. 6. The method for manufacturing a fluid substance package according to claim 2, wherein the filling port is sealed by heat sealing. 7. The fluid substance package according to claim 3, wherein the tip end piece of the soft film protrudes into the inside of the bag from the fusion-fixing position of the soft film and the bag film at the bag side entrance of the take-out passage. Packaging bag. 8. The fluid substance package according to claim 4, wherein the fusion-fixing position of the soft film and the bag film at the inlet of the take-out passage inside the bag is formed together with heat sealing over the entire width of the bag film. Packaging bag. 9. The packaging bag for a fluid substance package according to claim 3, 4, 7 or 8, wherein the bag is a self-standing bag having a gusset fold structure at the bottom. 10. Continuously feeding the film for a band-shaped bag body in the heat sealing step while continuously feeding two soft film tapes with their edges aligned with both edges of the film for a band-shaped bag body, The inner edge of the soft film tape is continuously heat-sealed to be fused and fixed to the film for the band-shaped bag body, and then,
The film for band-shaped bag body is folded in half, and the soft film tape is polymerized to be laminated with the two soft film tapes on the upper edge sandwiched inside. After forming a take-out passage by integrally fusion-bonding a four-layered laminated structure at a certain interval in a shape that leaves a take-out passage reaching from the inside of the bag to the peripheral edge of the bag, fusing at each width of the bag A method for producing a packaging bag for a fluid substance package, which comprises forming a side edge fused portion. 11. A continuous heat-sealing process, in which two sheets of film for bag-like bags are continuously fed out, and two soft film tapes are continuously supplied by aligning the upper edges of the films for belt-like bags. The inner edge of the soft film tape is continuously heat-sealed to be fused and fixed to the film for the band-shaped bag body, and then,
The two films for a band-shaped bag body are polymerized by aligning the surfaces of the soft film tape, and the upper edge and the lower edge are left and the upper edge and the lower edge of the film for the band-shaped bag body are left with a filling port in part of the upper edge or the lower edge. From the inside of the bag to the periphery of the bag, as a part of the four-layer structure of the upper edge of the film for the band-shaped bag body part, which is laminated by heat-sealing the edges and sandwiching the two soft film tapes inside. After forming a take-out passage by integrally fusing a four-layered laminated structure at regular intervals in a shape that leaves a take-out passage reaching up to 1, the side edge fusion-bonding portion is formed by fusing for each width of the bag body. A method for producing a packaging bag for a flowable substance package, which is characterized.