Abstract: A hinged-lid closure equipped with a lid and a base including a plate, an attachment skirt and an external lateral skirt, where the attachment skirt is thicker than the plate and the external lateral skirt. The base is equipped with a radial longitudinal rib attached to an internal surface of the external lateral skirt and located in a plane mid-perpendicular to the hinge.

Abstract: A single use dispenser package is configured and sized for storing and dispensing a single serving of a liquid or viscous product. An elongated stem on one end of the dispenser package is provided, having an aperture adaptable for dispensing a variety of products, ranging from liquid to considerably viscous products. To prevent inadvertent emission of the product, and in order to keep the opening of the dispenser package closed and sanitary prior to use, a portion of the relevant end of the dispenser package is folded over on itself and sealed with a food grade adhesive. The food grade adhesive seal may be easily broken by the user for dispensing the liquid or viscous product. The single use dispenser packages are tube-shaped to allow for easy squeezing and emission of the product out of the aperture.

Abstract: A completely disposable cooking apparatus used for preparing, filling assembling and decorating of foods, that is a one-piece disposable construction, comprising an elongated bag with a soft side wall, an open first end through which food material can be inserted into the bag and a second end that is closed by a tapered discharge orifice (also sometimes referred to as a nozzle or a tip). The orifice has a first end in contact with the second end of the bag and a distal end away from the bag. The cross-sectional area of the orifice at the first end is greater than the cross-sectional area of the orifice at the distal end. The orifice is made of a material so that it is capable of being cut at any point along its longitudinal axis to yield an exit opening or hole with a desired size.

Abstract: A stopper for being sealed between two sheets of a reservoir, including a body defining a front face, rear face, internal edge, and external edge. The body forms a dispenser orifice that passes through from the rear face to the front face, the front and rear faces defining front and rear heat-sealing zones for the sheets. The front face defines a fluid collection zone at the orifice and the rear face defines a fluid delivery channel that extends from the dispenser orifice to the internal edge of the body. A closure lid is provided, the lid connected to the base body via a hinge. The body defines tapering side edges where the front and rear heat-sealing zones are contiguous, and the front and rear faces are convex, to define a maximum thickness where the dispenser orifice, the delivery channel, and a fraction of the collection zone are formed.

Abstract: A flexible pouch having a removable cap for use with the tube spout fitment and a method of filling the flexible pouch is provided. The removable cap is formed from a tube of pliable material, and has a first opening and a second opening. The first and second openings each have a peripheral edge. The peripheral edge of the first opening is configured to engage the outer surface of the tube spout fitment. The peripheral edge of the second opening is pressed onto itself and sealed so as to form a flattened edge. The method includes the steps mounting the removable cap onto the tube spout fitment. Filling the pouch, and sealing the second opening of the removable cap so as to form a flattened edge.

Abstract: A peelable pouch (1) comprises: a first layer (2), a second layer (3), a compartment (4) for housing the product (7), the compartment (4) being formed between the first and second layers (2, 3) by peelably sealing the first and second layers (2, 3) along a compartment sealing portion (40), which extends along the proximal portion (23, 33) and along at least a part of the two lateral portions (20, 21, 30, 31) of the first and second layers (2, 3) as well as along first (24, 34) and second branch portions (25, 35), a first tear promoting means (50) provided on the first layer (2) only, a second tear promoting means (51) provided on the second layer (3) only, and a third tear promoting means (52) provided on both the first and second layers (2,3) and extending in a direction towards the location (26) where the first and second branch portions (24, 34, 25, 35) meet.

Abstract: A condiment packet including an exterior fold region, wherein the packet is folded over on itself. The packet includes a quantity of a condiment confined within a single chamber. The packet includes a seal disposed on the exterior fold region. The seal includes a first mode, wherein the seal prevents the quantity of condiment from leaving the packet. The seal includes a second mode, wherein the seal permits the quantity of condiment to leave the packet. The seal includes either a selectably removable tab, a pressure sensitive seal aperture, a break-away nub, or a perforated region configured to secure over the seal and permit or prevent the condiment from leaving the packet. The condiment packet is configured for one hand operation, wherein a thumb and a forefinger apply pressure to the ends of the condiment packet, wherein the quantity of condiment leaves the packet through the seal.

Abstract: A collapsible bag is provided for receiving and discharging fluids, pastes, or gases, and contains at least one composite film with a rough internal layer. The bag due to the roughened internal layer is specifically configured such that the inner walls of the bag will not stick to each other.

Abstract: A two-way valve and fitment for engaging a valve with a flexible product dispensing bag and particularly to a valve body formed in conjunction with the fitment to facilitate both the sealing of the bag to the fitment as well as filling the bag with a product to be dispensed therefrom and subsequently dispensing the product from the bag via a pressurized fluid source.

Abstract: A dispensing pouch assembly includes a pouch defining an volume and forming a circular opening into the volume, the circular opening having a wall and an inwardly protruding retaining lip thereon with sealing faces on the bottom and top surfaces thereof. A nozzle assembly removably engaged with the pouch includes a nozzle having a port extending from a top to a bottom end. A radial flange extends from the bottom end and includes a peripheral portion engaging the bottom surface of the retaining lip. A gasket encircles the nozzle with a peripheral portion of the lower face thereof engaging the top surface of the retaining lip. A retaining collar engaged with the nozzle urges the gasket and the radial flange, respectively, against the retaining lip sealing faces in a fluid-tight fit, permitting exit of flowable contents in the volume only through the port. Optionally, a cap fits on the nozzle.

Abstract: A hydration system for providing fluid to a user. The system includes a bladder configured to hold a fluid, the bladder having a multilayer outer protective skin of a lightweight, durable thermoplastic laminate. A spout is connected to the bladder and in communication with the inside of the bladder and having a relatively large-diameter fill outlet for filling the bladder with fluid. A cap adapted to engage and close the fill port is included. A drinking tube in communication with the inside of the bladder extends from an exit port and includes a distal end upon which a mouthpiece may be mounted. The fill port includes a three-part closure fitting having a sealing base portion, a sealing closure portion, and a sealing cap portion. Each portion includes flanges having mating ridges and troughs to provide a leak proof seal.

Abstract: A fitment for use with a flexible container having a lower fitment member with a fluid conducting opening in a top surface and an upper fitment member with an upper fitment opening in an upper fitment bottom surface where the fluid conducting opening and the upper fitment opening form a fluid passageway or conduit. A wall of the flexible container is compressibly held between the top surface of the lower fitment member and the upper fitment bottom surface. The fitment may also include one or more additional walls of one or more additional flexible containers forming a bag-in-a-bag structure.

Abstract: Fold and squeeze condiment packet sauce wrapper for any sauce including ketchup packet that folds in half and squeezes the sauce out from the middle hole. One side has a stiff hard backboard when folded in half both ends touch each other it pinches the packet and forces all the sauce out the middle opening. The sauce packet has a backboard either made out of plastic or stiff paper when folded, the one side with the back board acts as a pivot lever and squeezes the sauce out. The middle of the packet has a perforated line ready to be folded in half. The middle has an exit hole covered with a peel off sticker cover. The user peels off the sticker cover off the middle exposing the exit hole. The packet is folded in half and squeezes out all the ketchup sauce or any sauce out of the packet. When both ends of the packet are pinched together all sauce from the packet is extruded out the middle exit hole.

Abstract: The present invention relates to a tube head for product of fluid to pasty consistency comprising: a neck having at a first end an opening through which the product is extracted from the tube; and a shoulder connected to a second end of the neck opposite the first end, and the tube head comprising an air non-return means placed in said neck, said means being adapted to avoid a return of air from the first end of the neck to the second end of the neck, characterised in that the tube head is one piece and in that the non-return means comprise at least one valve.

Abstract: A semi-collapsible container has a hollow body with support and collapsible portions, and can be maintained in a collapsed or an expanded condition. The container is useful for storing liquid, and is especially adapted in its collapsed condition for storing substantially small volumes of concentrated liquid, powders or the like, and in its expanded condition for containing larger volumes of liquid. Filling the container with a liquid causes the collapsible portion to move from the collapsed condition to the expanded condition.

Abstract: An apparatus for dispensing the contents of a collapsible tube, such as a toothpaste tube. The toothpaste dispenser includes dual arms affixed to the tube that are used to reposition the contents of the tube and maintain the tube in modified configurations. The toothpaste dispenser of embodiments of the present invention allows for the product contained in the tube to be more readily compressed and dispensed from the tube relative to manual compression alone, thereby leaving less product in the tube when the tube is discarded.

Abstract: A refill pouch includes a head member and a pouch member connected with the head member. The head member has a threaded portion and a disc portion formed thereon. The threaded portion has one end connected with a top side of the disc portion. The threaded portion adapts to be threadedly connected with a pump head. The head member has a through hole defined therein and extending through the threaded portion and the disc portion. The pouch member is securely connected with a bottom side of the disc portion. The pouch member has an opening defined in a top thereof and located corresponding to the through hole for communicating with the through hole. The pouch member has a wall thickness gradually decreasing from the top to a bottom thereof.

Abstract: A food dispensing assembly includes a front wall attached to a rear wall. The container includes a top edge, a bottom edge and a pair of lateral edges. The lateral edges taper toward the bottom edge and the bottom edge is pointed. A food product is positioned in the container. A gripping sleeve has a frusto-conical shape and includes an open upper edge and an open lower edge. The container extends through the sleeve and the sleeve is positioned between the top and bottom edges. The container is cut along a plane of the lower edge to remove the bottom edge and open the container.

Abstract: A flexible bag for containing a product comprises a dispensing portion, a panel forming a first compartment for containing the product and forming a second compartment that is separate from the first compartment, and an elongated grip disposed at least in part in the second compartment. A user may grasp the grip to transport the bag or to pour a product from the first compartment. The grip may also prevent the bag from collapsing, allowing the bag to be efficiently stored on a surface and providing a surface on the flexible bag to prominently display information regarding the product. The dispensing portion may be a metered cap.

Abstract: A pouch and a production method for a spout pouch container are provided, which suppress curling of an opened spout attachment edge portion and offset of a filling port defining edge portion adjacent to the spout attachment edge portion when a spout is heat-sealed to the spout attachment edge portion. The pouch (10) is of a bottom gusset type, which includes a pair of front and rear exterior sheets (11, 12) and a gusset sheet (13) folded inward from lower portions of the exterior sheets (11, 12) to define a bottom gusset portion.

Abstract: A plastic bottle is provided with a mouth, a main unit, for example, a flexible, cylindrical main unit, connecting the interior of the bottle with the mouth, a base structured to close the bottom portion of the main unit and have a greater rigidity compared to the main unit. The main unit includes a lower body section extending upward from the base, a central body section extending upward from the lower body section, and a crease between the lower and central body sections. The central body section can be configured to deform into a substantially flat shape through the action of external force F so as to bend outward.

Abstract: Containers for infusion liquids and methods for making the same are described herein. Aspects of an exemplary container include an extended hollow body, a standing bottom, collapsible side walls and a tapered shoulder region which transforms into a neck. Fold lines (BL) are provided and configured such that they cause portions of the container having the fold lines to be flattened when liquid is removed from the container without venting.

Abstract: A hydration system for providing fluid to a user. The system comprises a bladder configured to hold a fluid, wherein comprises an outer layer of a fluorinated rubber composite. A spout is connected to the bladder and in communication with the inside of the bladder, wherein the spout comprises an output port and an fill port for filling the bladder with fluid. A cap adapted to engage and close the fill port is included. Also, a tube having a first end is connected to the output port of the spout and having a second end and having a second end connected to a fluid delivery fitting.

Abstract: A viscous liquid dispensing device for a cylindrical tubular reservoir includes an internal piston wedge, a first fitting encircling an outside wall of the reservoir, and a second fitting joined with the first fitting, with the second fitting having a flip-top cap enclosing an opening of dimension and size to receive a head of the piston wedge as it is removed forwardly along the reservoir from a closed end by a pinching action of the thumb and index finger upon a tail of the piston wedge.

Abstract: A viscous liquid dispensing device for a tubular reservoir includes an internal piston wedge having a head dimensioned to seat within the orifice of a dispensing nozzle as the piston wedge is moved forwardly from a sealed closure end of the reservoir towards the dispensing nozzle by a pinching action of the thumb and index finger upon a tail of the piston wedge.

Abstract: A packaging unit having two planar elements arranged on each other to form, by virtue of being spaced apart in certain regions, a closed chamber and that are joined to each other in a collar region encircling the chamber, the collar region being bounded by an outer edge. The chamber has, for controlled dispensing of a medium stored therein, a tapering extending into a detachable section that is detachable from the collar region and on which a predetermined break line intersecting the tapering is provided for creating an opening at the tapering. Provision is made that the detachable section is bounded by a material weakening that is recessed at a distance from the outer edge into the collar region and separates the detachable section from a protective section of the collar region that covers the detachable section toward the outer edge.

Abstract: A flexible package for holding a flowable material therein and method of use to enable the flowable material to be introduced into a dispensing system via an inlet tube. The flexible package has a body portion and a projection which forms a mouth for the package and is in communication with the interior of the package. The projection is openable for receipt of the inlet tube and is arranged to be clamped into engagement with the inlet tube to form a fluid-tight interface by use of a clamping mechanism. The fluid-tight interface is releasable, when desired.

Abstract: A collapsible dispenser for dispensing various edible and non-edible materials in an industrial or home environment. More particularly, the invention pertains to a foldable and generally pyramoidal-shaped dispenser particularly suited to dispensing granular, powdered or viscous liquid materials and includes a dispenser body having a dispensing end and an interior compartment for receiving and storing various materials. The dispenser body includes a foldable base that may be manually manipulated between a collapsed position closing and sealing a dispensing mechanism and an expanded position opening and unsealing the dispensing mechanism for use.

Abstract: The present invention provides a closure assembly for a container having a housing, a retaining ring and a valve. The closure assembly is useful for attachment to a container to provide flowable, aseptic access to the contents of the container.

Abstract: An elastic substantially tubular package for a semi-liquid or pasty extractable by a finger pressure product comprises a skirt, a head and optionally a cap. The skirt is formed from a wound foil and is provided with a longitudinal weld seam formed by the overlapping of the edges thereof, and the head is fixed to the circumference of the skirt end and forms an oval cross-section at the level of the skirt fixing area. The end of the longitudinal weld seam contacting the head is located in or near an area where the radius of curvature of the oval cross-section is minimal.

Abstract: A two part nozzle for use in expressing thick, viscous materials therethrough comprises a nozzle base and a nozzle tip, and screw means for mounting the tip to the base. The base projects within the tip, and is proportioned to interfere with the inside wall of the tip around a narrow, continuous path, thereby providing an internal seal with the interior wall surface of a pouch to which the nozzle is coupled to prevent the back-flow of material through the screw means. Preferably, the nozzle also provides a seal on the external wall surface of the pouch, thereby reducing the possibility of material leaking both from and into the pouch. Gripping ribs are provided to facilitate the application of a manual force to couple and decouple the nozzle parts.

Abstract: A flexible pouch having a removable cap for use with the tube spout fitment and a method of filling the flexible pouch is provided. The removable cap is formed from a tube of pliable material, and has a first opening and a second opening. The first and second openings each have a peripheral edge. The peripheral edge of the first opening is configured to engage the outer surface of the tube spout fitment. The peripheral edge of the second opening is pressed onto itself and sealed so as to form a flattened edge. The method includes the steps mounting the removable cap onto the tube spout fitment. Filling the pouch, and sealing the second opening of the removable cap so as to form a flattened edge.

Abstract: A flexible fluid delivery system comprising a fluid bladder having a first inlet and a first outlet, the fluid bladder configured to contain liquid, an inflatable compartment capable of being pressurized by inflation and having a second inlet, the inflatable component being formed adjacent to the fluid bladder, such that the fluid bladder and the inflatable component are integrated to form a pressurized fluid reservoir, a seam element formed in the fluid bladder and the inflatable component of the pressurized fluid reservoir, the seam element being capable of controlling the shape of the pressurized fluid reservoir, a pump associated with the second inlet of the inflatable compartment, the pump being configured to inflate the inflatable component of the pressurized fluid reservoir, and a valve operatively coupled to the first outlet of the fluid bladder, the valve being capable of releasing the liquid contained in the fluid bladder.

Abstract: A pouch is formed out of two sheets of plastic heat sealed over most of the edge length. The pouch has an expanding bottom feature and has a pouring spout formed by raised impressions in the corresponding sheets of plastic that form matching embossments. When the pouch is squeezed, the embossments open further apart to form a larger fluid passage at the outlet. The outlet of the pouch is opposite the bottom of the pouch and in at least one embodiment has a region on both sides of the outlet that are kept free from heat sealing during manufacture. The outlet also has a frangible line of weakness for easy opening. The outlet passage has two sets of embossments that meet along a center line to more fully expand the central portion of the pouch.

Abstract: A container for containing a flowable material includes first and second sheet portions selectively sealed together along a perimeter of said container to define a closed cavity for containing the flowable material therein. The cavity includes a dispensing portion at a periphery of the container, with the dispensing portion being configured for dispensing the flowable material from the cavity when the dispensing portion is opened. The base and/or the side regions of the container may comprise at least one substantially rigid region with at least one weakened portion to facilitate folding of the base and/or side regions at the weakened portion or portions to assist in dispensing the flowable material from the container.

Abstract: A kit of parts for use in the manufacture of a particle cassette for a needleless syringe device. The kit may include a first cassette part having a first rupturable membrane sealed thereto and a second cassette part having a second rupturable membrane sealed thereto. The first and second cassette parts may be arranged to be attachable together so as to create a chamber for the confinement of particles between the first and second membranes. The first and second cassette parts may be substantially annular and the first cassette part defines a receptacle for receiving particles. The second cassette part may be attachable concentrically around or inside the first cassette part.

Abstract: This assembly is of the type including: a container (4) for containing the liquid; a liquid dispensing device (6), including: a spout (20) through which liquid can pass out and air can come in; and elements (28) for filtering liquid and air passing through the spout (20); and a cap (14) for closing the container (4). One feature of the invention is that the assembly includes elements (38, 41, 39) for encouraging the entrance of air and/or the return of a residual quantity of liquid trapped in the spout (20) after dispensing some liquid, through the filtering elements (28), into the container (4).

Abstract: A branch type standing pouch which includes a pouch front side member including a pouring-out nozzle backside portion which constitutes a backside of a pouring-out nozzle by being folded back and a pouch body front side portion continuous therewith; a pouch backside member constituting a backside of the pouch body; a pouring-out nozzle front side member; and a bottom member. The pouch front side member, the pouch backside member, the pouring-out nozzle front side member, and the bottom member are respectively formed of plastic film and heat-sealed to each other so that a pouring-out nozzle is formed in a branched manner from a top of a pouch body. In this pouch, two symmetrical nozzle reinforcing areas are formed on both sides of a first protrusion as a result of a provision of the first to fourth protrusions. As a result, the branch type standing pouch in which the pouring-out nozzle can be fixed upright at a time of opening is obtained.

Abstract: A container for liquids or semi-solid contents is formed from one or more pieces of paper, where the paper openings are sealed and the body of the container is coated with a material that renders the body impermeable to the contents. The coating material could be biodegradable, such that the entire container biodegrades after use. The container could also be sealed using crimping or folding the ends of the paper, and the paper could be layered to improve the impermeability effects.

Abstract: A blow molded collapsible container includes a main body portion having a sidewall that defines an interior space that has a volume. The container further has a neck portion that is unitary with the sidewall. The neck portion has an opening defined therein that is in communication with the interior space. The main body portion includes opposing sides, with each of the opposing sides having an outwardly extending crease defined in a central portion thereof. The main body portion is constructed and arranged to collapse by folding along the outwardly extending creases when the volume of the interior space is reduced. The collapsible container is shaped in a manner that facilitates fabrication using an extrusion blow molding process.

Abstract: The liquid-containing bag is produced integrally from two sheets (4; 5) which are welded to on another along the edge region (3), and the bag forms two chambers (6; 7) which are separated from one another by a separating strip (8). A drinking or dispensing spout (2) is welded with sealing action in the separating strip (8), in which case this connects the two chambers (6, 7) in the open state, the one bag chamber (6) being intended for receiving the liquid, while the other bag chamber (7), as a protective chamber, encompasses the outer spout end (9) and encloses the same with sealing action.

Abstract: A foil container (11) has two foil bag chambers (12, 16) arranged next to one another for compound components of a multi-component compound which are stored separately from one another, and a head (21) having a base plate (22) with a contact side (23) at which two receptacle portions (24, 25) are provided, each for one end of the respective foil bag chambers (12, 16), and a mixer connection (31) in which there are provided a first outlet opening (33) for one of the compound components of the multi-component compound and a second outlet opening (34) for an additional compound component of the multi-component compound and arranged in the first outlet opening (33).

Abstract: The invention relates to a container (1) for containing a substance. The container comprises a preformed deformable body defining a filling cavity. The body has an opening (6) and an integral planar circumferential rim (5) surrounding said opening. The opening is closed by a cover sheet (7) which is sealed to the circumferential rim by means of a circumferential sealing seam (10). The circumferential rim has a flat dispensing part which is covered by the cover sheet, which cover sheet is sealed to the dispensing part by at least two outwardly directed sealing seams (11) joining the circumferential sealing seam and extending at a distance from one another from the circumferential sealing seam to the edge of the dispensing part. A weakened seal (14) with a pointed region (15) extends between the outwardly directed sealing seams.

Abstract: The present disclosure relates to a dosing container for releasing, in a controlled manner, pasty or viscous product by manually pressing on the container, comprising a closable removal opening, wherein the container comprises two side walls which are arranged substantially parallel to each other and which are connected to each other by two face-side walls, which comprise at least one side fold through which the face-side walls (3) are divided into at least two face-side wall segments which can be laid against each other and/or against the inside of the side walls, wherein the side walls abut each other at an end at a distance from the removal opening and are pressed inward, wherein the removal opening is provided on a container head extending substantially at right angles with respect to the side walls and/or the face-side walls. With the present disclosure, a dosing container having improved restoring properties is specified.

Abstract: A spout (4) that is attached to a pouch-like bag and through which the contents filled in the bag are discharged, the spout includes: a tubular portion (49) in which a through hole (12) is formed and from a leading end of which the contents are discharged; and a rib (20) that extends from the inner circumferential surface of the tubular portion (9) towards the central axis side (13) of the through hole (12). A hole (21) surrounded by the edge of the extended rib (20) is formed in the part where the rib (20) is formed. This configuration makes it easy to secure the strength of the rib (20) and is advantageous in preventing breakage and deformation of the rib (20). Thus, accidental insertion of connecting needles can be prevented with more certainty.

Abstract: A packaging container is used to package a regulated fluid dispensing system including a regulated fluid dispensing device and a beverage container. The packaging includes carry handles, and a perforation pattern that allows a front panel of the packaging container to be removed thus exposing working parts of the dispensing device. The dispensing system may remain housed within the packaging during use that assists in stabilizing and protecting the dispensing system.

Abstract: A filter-equipped container which, particularly in a small-sized eyedrop bottle or the like, is capable of accurate dropping while preventing bubbles from being involved when a contents liquid is to be delivered through a delivery port. To solve such problem, a plug body 12 disposed in the mouth of a bottle 10 is provided with a delivery passage for delivering contents liquid received in the bottle 10, the delivery passage being provided with a filter 25. The filter 25 is composed of a filter film 25a for filtering bacteria to prevent the latter from permeating from upstream to downstream as seen in the direction of delivery, and a contents liquid holding member 25b of porous material that has microscopic pores, disposed upstream of the filter film 25a, the contents liquid holding member 25b being in planar contact with the filter film 25a.

Abstract: An improved device for dispensing toothpaste from a flexible tube using only manual pressure on the flexible tube. The device is formed to fit precisely the inner shape of the toothpaste tube and slides forward as the tube is manually squeezed from the outside. As the device moves toward the tube opening the toothpaste is expelled. Friction strips attached to the device on two sides come into contact with friction strips on the two interior sides of the toothpaste tube. As the device is propelled forward by manual pressure it is prevented from moving rearward toward the closed end of the toothpaste tube because of the friction strips. Thus as the tube is depressed and the toothpaste is expelled the flattened portion of the tube remains flattened and the tube is ready for the next use.

Abstract: Foil bags are used as a primary packaging for liquids, the bags permitting the liquid to be taken therefrom without the application of a considerable amount of force. A container is provided for a medicinal liquid, the container being gas-tight and liquid-tight so that it is storable over many months. The container includes a collapsible foil bag on which a flange, which is stable in respect of shape, is disposed. The flange is designed for fitting onto a discharge connection member. The container can be disposed in a casing which is stable in respect of shape. The medicinal liquid does not come into contact with air and is protected from the effect of light. The medicinal liquid may be dispensed from the foil bag in many partial quantities over a prolonged period of time, with a respective partial amount thereof being converted into an aerosol by means of an atomizer.

Abstract: A spout assembly for a packaging bag for improving the prevention of oxidation to an inner content and discharging such content at a desired amount. The spout assembly mounted to the bag body includes a spool to move along the axial direction of the spout assembly and an urging member having an outer peripheral surface fixed to the inner peripheral surface of the spout assembly and adapted to urge the spool toward the bag body side. A check valve allows the inner content to flow only from the bag body side toward the mouth portion side. The urging member has a seat surface for the spool and the urging member presses the spool against the seat surface to shut off the flow of the inner content, and when an inner pressure of the bag body or a suction force of the mouth reaches a predetermined value, the spool separates from the seat surface.