Infusion bag

Abstract

The present invention provides a new invention provides a new infusion bag that is easy to handle even if a long hanging string is used, allows easy infusion, and prevents the hanging string from being caught in a seal part during individual-package sealing. Said infusion bag 1 is provided with the following: a bag part 2 that contains the substance to be used to produce an infusion; and a hanging string 3 , the tip of which is affixed to a tag 5 for holding the infusion bag and the base end 3 a of which is affixed to the surface 4 of the bag part 2 . This infusion bag is characterized by a structure wherein: the hanging string 3 is coiled into a spiral and disposed on the surface 4 of the bag part 2 ; and the tag 5 is detachably affixed to the surface 4 of the bag part 2 so as to cover the hanging string 3.

1 . An infusion bag comprising:
 a bag portion containing a substance used for infusion; and   a hanging string having a front end to which a tag is fastened, and a base end fastened to a surface of the bag portion,   wherein the hanging string is collected into a spiral and placed on the surface of the bag portion, and the tag is detachably fastened to the surface of the bag portion so as to cover the hanging string.   
     
     
         2 . The infusion bag according to  claim 1 , wherein the tag is detachably fastened at least at two spots to the surface of the bag portion so that fastening portions hold the hanging string therebetween. 
     
     
         3 . The infusion bag according to  claim 1 , wherein a fastening position of the base end of the hanging string is a position deviated from an intersection between a vertical line passing through a geometric gravity point of a polyhedron and the surface, when, given that the bag portion is a polyhedron, the surface of the bag portion to which the base end of the hanging string is fastened is horizontally oriented. 
     
     
         4 . The infusion bag according to  claim 1 , wherein the hanging string is a string having static load elongation of 4 mm to 8 mm. 
     
     
         5 . A method for manufacturing an infusion bag including a bag portion containing a substance used for infusion, and a hanging string having a front end to which a tag is fastened, and a base end fastened to a surface of the bag portion, comprising the steps of:
 collecting the hanging string into a spiral and placing the hanging string on the surface of the bag portion; and then   detachably fastening the tag to the surface of the bag portion so as to cover the hanging string.   
     
     
         6 . The method for manufacturing an infusion bag according to  claim 5 , wherein the tag is detachably fastened at least at two spots to the surface of the bag portion so that fastening portions hold the hanging string therebetween. 
     
     
         7 . The method for manufacturing an infusion bag according to  claim 5 , wherein a fastening position of the base end of the hanging string is a position deviated from an intersection between a vertical line passing through a geometric gravity point of a polyhedron and the surface, when, given that the bag portion is a polyhedron, the surface of the bag portion to which the base end of the hanging string is fastened is horizontally oriented. 
     
     
         8 . The method for manufacturing an infusion bag according to  claim 5 , wherein the hanging string is a string having static load elongation of 4 mm to 8 mm.