An adjustable measured fluid dispenser is provided for dispensing a fluid from a storage container. The adjustable measured fluid dispenser is connected to the storage container, and a tube connects the dispenser to the storage container. The tube connects to a channel in a support cup, which in turn supports a nested measurement cup. The measurement cup contains fillable chambers which each contain a flow duct. The height of each flow duct determines a corresponding retained volume of each fillable chamber. The fluid dispenser operates when the storage container is constricted, causing fluid to flow up the tube, through the channel, and out of the flow duct to fill the fillable chamber in excess of the retained volume. When the constriction on the storage container is relaxed, the excess fluid flows back through the flow duct leaving only the retained volume of fluid behind in the fluid dispenser.

An adjustable measured fluid dispenser is provided for dispensing a fluid from a storage container. The adjustable measured fluid dispenser is connected to the storage container, and a tube connects the dispenser to the storage container. The tube connects to a channel in a support cup, which in turn supports a nested measurement cup. The measurement cup contains fillable chambers which each contain a flow duct. The height of each flow duct determines a corresponding retained volume of each fillable chamber. The fluid dispenser operates when the storage container is constricted, causing fluid to flow up the tube, through the channel, and out of the flow duct to fill the fillable chamber in excess of the retained volume. When the constriction on the storage container is relaxed, the excess fluid flows back through the flow duct leaving only the retained volume of fluid behind in the fluid dispenser.

An eco-friendly soft tube packaging and a method of manufacturing the same are provided. The soft tube packaging includes a cap, a body, a tightening member, and an outer tube, all made from biodegradable or recyclable materials. A bottle preform is produced by injection molding and further produced into the body with a hollow liner by blow molding. The outer tube is a spiral paper tube produced by at least two payers of fiber paper. The outer tube is covering the liner and fixed to the body by the tightening member. A rear end of the outer tube and a rear end of the liner are adhered and the liner is closed. The respective components of the soft tube packaging can be broken down and detached for sorting and recycling separately. Therefore, fully recyclable or biodegradable tube packaging can be achieved.

An eco-friendly soft tube packaging and a method of manufacturing the same are provided. The soft tube packaging includes a cap, a body, a tightening member, and an outer tube, all made from biodegradable or recyclable materials. A bottle preform is produced by injection molding and further produced into the body with a hollow liner by blow molding. The outer tube is a spiral paper tube produced by at least two payers of fiber paper. The outer tube is covering the liner and fixed to the body by the tightening member. A rear end of the outer tube and a rear end of the liner are adhered and the liner is closed. The respective components of the soft tube packaging can be broken down and detached for sorting and recycling separately. Therefore, fully recyclable or biodegradable tube packaging can be achieved.

The invention relates to a leaktight container (1) having a flexible wall comprising a bag (2) formed from a flexible film arranged so as to define a leaktight interior volume and a through-opening, and means for fixing the bag (2) to a connecting device (4) for connecting the container (1) in a leaktight manner to a sterile enclosure equipped with a complementary connecting device (4), said fixing means comprising a fixing ring (6) arranged so as to allow the connecting device (4) to be fixed reversibly to the bag (2), said ring being made up of two concentric annular parts fitted one in the other, the external annular part being dimensioned so as to be force-fitted around the internal annular part and to exert a radial stress thereon, the portion of film delimiting the through-opening being gripped between the two annular parts.