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.

Abstract: A method of manufacturing a packaging bag includes steps of: preparing a sheet of rectangular film material; forming a bag body from the sheet of the rectangular film material; preparing a shaping member; preparing and attaching a fastener; forming a vertical sealing portion; forming the bottom surface portion so as to include a lower end seal portion; a triangular folded portion; and a flat surface folding portion; and forming the lower sealing portion so as to include a central sealing portion; and a side sealing portion.

Abstract: A bag includes a bag body having first and second sides (11c, 11d) to meet each other, and a third side (11e) extending obliquely to the first and second sides (11c, 11d) and defining an opening; a spout unit (13) having an apex (13a) projecting from the third side and defining a corner, and a zipper (15); and a recessed portion (17A, 17B, 18A, 18B) positioned away from the zipper (15) and formed on at least one of the first and second sides (11c, 11d).

Abstract: An easily openable packaging bag according to the present invention does not produce an opening piece resulting in a small piece of waste when opening, and facilitates opening even with a single hand. Furthermore the easily openable packaging bag of the present invention can be also applied to a packaging bag provided with barrier characteristics. The easily openable packaging bag joins both ends of a packaging material into a tube shape. Both of the joined ends are heat sealed to form a bonded rear portion in a rear portion of the tube portion and solid contents are contained in an inner section of the tube portion. A weakened portion is formed in a portion not occupied by the contents in the tube portion along a circumferential direction of the tube portion and the weakened portion is not provided in at least a portion of the bonded rear portion.

Abstract: The present invention provides a multilayered body for medical containers, in which the innermost layer formed from a cyclic polyolefin exhibits favorable adhesion to another layer without using an adhesive, which exhibits excellent heat resistance, and which provides favorable blocking resistance when formed as a film, as well as a medical container formed from this multilayered body for medical containers, which suffers minimal deterioration in properties such as transparency and peel strength even when subjected to sterilization with high-pressure steam or the like.

Abstract: The present invention has an object to provide an infusion container with multiple chambers, where the peel strength of the boundary portion between one and another of multiple medicament chambers is stabilized irrespective of the construction material and structure of the film. The present invention provides an infusion container 10 with multiple chambers, which is formed from a thermoplastic resin film and has a plurality of medicament chambers 11 and 12 for housing medicaments, wherein the medicaments chambers 11 and 12 are liquid-tightly sealed by a peelable weak seal part 15, the weak seal part 15 is formed to have a plurality of melt-bonding parts different in the melt-bonding strength, the strong melt-bonding part having a largest melt-bonding strength among these melt-bonding parts is dispersed and distributed in the weak seal part 15, and the total occupied area of the strong melt-bonding part is less than 25% of the area of the weak seal part 15.

Abstract: To provide a medical liquid container which is free from sealing failure in the seal portion at the peripheral edge of the liquid medicament-housing chamber and also free from deterioration of a medicament housed in a small amount; and a preparation-containing medical liquid container. A secondary liquid medicament-housing chamber 12 is connected to one end of a primary liquid medicament-housing chamber 11. This secondary liquid medicament-housing chamber 12 is unseparably fixed to the primary liquid medicament-housing chamber 11 at a connection part 14. The secondary liquid medicament-housing chamber 12 has a bulge part 15 bulged such that the internal medicament-housing space before housing a second medicament is larger than the volume of the housed second medicament.

Abstract: The present invention has an object to provide an infusion container with multiple chambers, where the peel strength of the boundary portion between one and another of multiple medicament chambers is stabilized irrespective of the construction material and structure of the film. The present invention provides an infusion container 10 with multiple chambers, which is formed from a thermoplastic resin film and has a plurality of medicament chambers 11 and 12 for housing medicaments, wherein the medicaments chambers 11 and 12 are liquid-tightly sealed by a peelable weak seal part 15, the weak seal part 15 is formed to have a plurality of melt-bonding parts different in the melt-bonding strength, the strong melt-bonding part having a largest melt-bonding strength among these melt-bonding parts is dispersed and distributed in the weak seal part 15, and the total occupied area of the strong melt-bonding part is less than 25% of the area of the weak seal part 15.

Abstract: A spout unit having a tamper-evident function so that it is easy to determine visually that a sealed cap is opened when the cap is unsealed, wherein strong force is not needed to open while modification of moderate curve in convex from an easy-to-break portion of a tamper-proof ring is corrected when the spout is sealed with the cap, is provided.

Abstract: A method is provided for producing a bag with a mouth member by liquidtightly melt-bonding a mouth member comprising a thermoplastic resin and a bag unit comprising a relatively soft flexible film, in which uniform surface temperature of the mouth member is realized, generation of an A-shaped gap is prevented, and a bag with a mouth member excellent in the liquidtightness of the melt-bonded part between the mouth member and the bag unit is produced; and also a production apparatus therefor is provided. The method comprises a preheating step of heating a tubular mouth member while rotating it around the cylinder axis thereof, and a melt-bonding step of inserting the heated mouth member into the opening part of a bag unit and pressing, and thereby melt-bonding the mouth member to the opening part of the bag unit.

Abstract: A coupling piece coupling a cap body and a band is prevented from being cut off to tampering and the cutting-off thereof due to deformation of the band. An open/close cap a cap body to be screwed to an outer peripheral surface of a mouth portion of a pouring spout and a band extending in the circumferential direction of the cap body and engaged with the pouring spout, the band being formed with at least one portion at which the band 10 circumferentially separated, the end of the band being connected by a connection piece at that portion at which the band is cut off. The band is disposed below the lower surface of the cap body and coupling pieces are attached to the lower portion of the cap body. A band shape maintaining member is disposed to the lower end of the cap body.

Abstract: In order to achieve a container which is convenient for carrying, delivery, transportation and storage of a viscous liquid, which can be disposed by being crushed to a small volume size when it has become empty, and which prevents twisting or rising up of the lower half of the container during a mixing of a viscous liquid, a container A holding liquid is used, wherein a ring-shaped rim frame 2 is provided on the upper end of a flexible tubular main body 1, a bottom plate 3 is fitted onto an opening at the lower end thereof, and at least one ring-shaped trunk section frame 4 is provided on the outer circumferential surface of said tubular main body 1.

Abstract: A method of manufacturing a packaging bag includes steps of: preparing a sheet of rectangular film material; forming a bag body from the sheet of the rectangular film material; preparing a shaping member; preparing and attaching a fastener; forming a vertical sealing portion; forming the bottom surface portion so as to include a lower end seal portion; a triangular folded portion; and a flat surface folding portion; and forming the lower sealing portion so as to include a central sealing portion; and a side sealing portion.

Abstract: There is provided a fastener bag capable of improving working efficiency for the filling of inner content and forming a bag cut-starting portion. The bag is formed as gusset-type packaging bag, to which a fastener for freely opening or closing the packaging bag is attached. The fastener has a male portion to which a projected thread is formed and a female portion to which a groove is formed so as to be engaged with the projected thread. Base portions of the male and female portions are attached to an inner surface of one of the flat surface portions or side surface portions so that the projected thread and the groove face each other. A cut-tape for separating the flat surface portion into the male portion side and the female portion side is provided between the base portions.

Abstract: A medical container produced from a film or sheet having at least one resin layer comprising a polyolefin resin composition, wherein the polyolefin resin composition comprises includes (A) at least one propylene-base polymer which is (A) a specific propylene-base polymer composition, (A) a propylene-base block copolymer and (A) a specific propylene-base block copolymer composition, and (B) an ethylene-base copolymer including an ethylene and at least one ?-olefin having 4 or more carbon atoms, and the refractive index of the xylene-soluble portion of the mixture of polymers (A) and (B) is from 1.480 to 1.495.

Abstract: A packaging bag comprises a main bag body and a framework member. The main bag body is made of plastic film material through a main bag body formation process. The main bag body has an opening and a plurality of heat sealed portions. The framework member is disposed in the main bag body. The framework member is joined to the main bag body prior to completion of the main bag body formation process. The framework member is foldable/unfoldable together with the main bag body, to enable the framework member and the main bag body to be shifted between a generally flat collapsed state and an expanded state.

Abstract: A packaging bag is formed by bending a laminate film at two portions in parallel to each other such that both end portions thereof are mated to each other and the mated end portions are bonded together so as to provide a tubular body having upper and lower openings, which are sealed by forming upper and lower seal portions, respectively.