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: A thermal insulating packaging film which includes: a base material; and an open-cell layer disposed on one face of the base material and made of polyolefin. The open-cell layer in the thermal insulating packaging film preferably has an average bore diameter of 150 ?m to 500 ?m.

Abstract: The present invention is a medical drug solution container (13) which is formed of a plastic film including seal layers.

Abstract: Provided is a coextruded film including an adhesive layer, which is formed from a blend of a maleic anhydride modified polyolefin resin and a polyolefin resin, between a barrier layer that is formed from an ethylene vinyl alcohol copolymer, and a sealant layer that is formed from a polyolefin resin. When this adhesive layer is applied, it is possible to provide a coextruded film which has a sufficient barrier property due to the barrier layer formed from the ethylene vinyl alcohol copolymer, and in which surface gloss is satisfactory, and irregularities are suppressed, and thus the exterior appearance thereof is excellent.

Abstract: Disclosed is a multi-layer tube for medical use, the tube being characterized by having: an outer layer including a resin material that contains high-density polyethylene, and an inner layer including a resin material that contains random polypropylene and/or block polypropylene. Also disclosed a medical infusion bag provided with the multi-layer tube.

Abstract: The method for attacking a thin cylindrical element to a mold core is a method for attaching a film-like thin cylindrical element, which is formed in a cylindrical shape having a constant cross-sectional shape, to an outer surface of a mold core in a manner so as to cover the mold core. The method includes pressing the thin cylindrical element onto a tip portion of the mold core; guiding the thin cylindrical element to the base end side of the mold core while ejecting gas into between the mold core and the thin cylindrical element; and attaching the thin cylindrical element to the outer surface of the mold core in a manner so as to cover the mold core.

Abstract: A multi-chambered container for medical use (10) includes a container main body (20) having flexibility, a weak seal part (26) that is detachable and seals opposing faces of the container main body, drug storing chambers (22, 24) formed in such a way that the container main body is partitioned into two or more by the weak seal part, and a pair of resonance tags (30, 40) that are provided in the container main body so as to interpose the weak seal part.

Abstract: A self-standing bag (1) including a barrel portion (10) having a front surface portion (11) and a back surface portion (12); and a bottom portion (20) formed by a bottom member folded in half, wherein each side edge of the bottom member is folded back at edges (14, 15) of the barrel portion (10), each side edge area of the bottom member is attached on an inner surface of the back surface portion (12) of the barrel portion (10), the entire circumference of a lower end of barrel portion (10) is adhered to a lower end (10c) of the barrel portion (10), and the attachment of the side edges of the bottom member to the inner surface of the barrel portion (10) is performed by adhesive members (41, 42) so as to cover the edges of the bottom member. Also, Disclosed are a production method of the self-standing bag (1) and a self-standing bag having content in the self-standing bag (1).

Abstract: The flexible container relating to the present invention comprises a cylindrical member (10) made from flexible film, a bottom plate member (12) which is harder than the flexible film, fitted into the inner side of a first end section of the cylindrical member (10) and fused-bonding airtightly; and a ring member (11) which is harder than the flexible film, fitted into the inner side of a second end section of said cylindrical member (10) and fused-bonding airtightly. According to this flexible container (2), it is possible greatly to reduce the volume of the container after discharging the highly viscous material from the flexible container, and it is possible to achieve small and inexpensive molds having excellent productivity as molding equipment for forming the bottom plate member (12) and the ring member (11), thereby achieving benefits in that the price of the equipment can be reduced significantly.

Abstract: The present invention relates to a plastic film for medical containers having an oxygen absorbing function including at least 4 layers (4) and formed by a co-extrusion method, and an infusion bag formed thereof, in which the 4 layers include: a first layer (1) constituted by a polyamide obtained by a ring-opening polymerization of a lactam 11 or more carbon atoms or by polycondensing of an ?-amino acid having 11 or more carbon atoms, or a polyamide obtained by copolycondensing a dicarboxylic acid having 10 or more carbon atoms and a diamine having 6 or more carbon atoms; a second layer (2) of a mixed composition that is adjacent to the first layer and contains an ethylene vinyl alcohol copolymer of an ?-olefin and a monomer of an unsaturated carboxylic acid or an anhydride of an unsaturated dicarboxylic acid as the major component, and a transition metal salt and a polyene-based polymer having an unsaturated double bond as accessory components; a third layer (3) that is adjacent to the second layer and contai

Abstract: The present invention relates to a plastic film (10) formed by a co-extrusion method, and an infusion bag formed thereof. The plastic film (10) includes at least three layers having: a first layer (1) constituted by a polyamide obtained by a ring-opening polymerization of a lactam having 11 or more carbon atoms or by polycondensing of an ?-amino acid having 11 or more carbon atoms, or a polyamide obtained by copolycondensing a dicarboxylic acid having 10 or more carbon atoms and a diamine having 6 or more carbon atoms; a second layer (2) containing a copolymer of an ?-olefin and an anhydride monomer of an unsaturated carboxylic acid or an unsaturated dicarboxylic acid as the major component; and a sealing layer (3) containing a polyethylene as the major component.

Abstract: A bottom 8 of a container 1 is elastically deformable between a downwardly convex state and an upwardly convex state. The bottom 8 has strength enough not to be deformed from the upwardly convex state to the downwardly convex state by a weight of granular materials filled in the container 1 and vibrations acting on the granular materials.

Abstract: A gusset bag (10), having a pair of flat surface portions (11, 11) facing each other and a pair of side surface portions (12, 12) facing each other which are folded toward the inside, has a side edge sealing portion (13) in which the flat surface portion and the side surface portion are heat-sealed together at side edge portions thereof, and a folded-back portion (13c) in which all or a part of the side edge sealing portion in the width direction is folded back toward the flat surface portion or the side surface portion. The gusset bag and a spout-attached gusset bag (1) using the gusset bag have an excellent self-standing property, and causes one's hand to feel little pain even when being squeezed.

Abstract: A spout (20) which attaches to a container body (10), wherein the spout (20) is provided with a spout body (21), and a closing portion (22) which closes a discharge port of the aforementioned spout body (21); the aforementioned spout body (21) has an attachment (24) which is attached to a container body (10) in a liquid-tight manner, and an outer cylinder (25) which is positioned on the outer side of the container body (10); and the closing portion (22) is connected to a discharge port of the outer cylinder (25) in a manner which enables it to be snapped off, and is provided with projections (29) which extend toward the spout body (21) side. In addition, there is a spouted container (1) to which the aforementioned spout (20) is attached.

Abstract: In order to provide a medical liquid container which allows for no forgetful failure to open the partition wall and can realize simple and easy sterilization of the liquid medicament bag and thereby decrease the production cost, the present invention provides a medical liquid container having a plurality of communicatably partitioned medical liquid-housing chambers and a discharge reserve chamber having formed therein a discharge port for a liquid medicament, the medical liquid container comprising liquidtightly partitioning portion for liquidtightly separating said liquid medicament-housing chambers from each other, and non-liquidtightly partitioning portion for non-liquidtightly separating between at least one of said liquid medicament-housing chambers and said discharge reserve chamber.

Abstract: A bottom 6 is disposed on a lower end portion of a body 2 made of a film having barrier properties against gases. The bottom 6 is composed of a shield 7 and a reinforcement 8. The shield 7 is formed from a film having barrier properties against gases. A lower end opening of the body 2 is closed by welding an outer circumferential surface of a short cylindrical part 7A of the shield 7 to an inner circumferential surface of the body 2. An outer circumferential surface of the reinforcement 8 is welded to an inner circumferential surface of the short cylindrical part 7A. The lower end portion of the body 2 is maintained in a predetermined shape by the reinforcement 8.

Abstract: [Problems to be Solved]: In the case of the pour spout member of prior art in which an inner stopple provided within the tubular neck must be by a handgrip attached to the inner stopple must be pulled out to open the pour spout. With such arrangement, there is a problem that not only operation of opening the pour spout is troublesome but it is sanitarily apprehended that the user's hand might come in contact with the pour spout. In the case of the pour spout member of prior art in which the sealing is broken by rotating the cap, there is anxiety that the cap might be unintentionally rotated, for example, in the course of transit.