Pouch having internal straw with residual protection function

Abstract

The present invention relates to a pouch having an internal straw, which stores liquid in a space between a first sheet material ( 101 ) and a second sheet material ( 102 ), the edges of which are welded, and in which a straw ( 111 ) is built-in. A baseline ( 120 ) where the first sheet material ( 101 ) and the second sheet material ( 102 ) meet in a floor portion inside the pouch has a straight upward gradient from a bottom point ( 121 ) to form an inverted triangular shape between the bottom point ( 121 ) and the straight upward gradient. Moreover, a lower end ( 111 A) of the straw ( 111 ) is positioned at the bottom point ( 121 ), and the lower end of the straw is attached to the first sheet material ( 101 ) or the second sheet material ( 102 ) to maintain the position of the lower end of the straw.

1 . A pouch comprising:
 a built-in straw which stores liquid in a space between a first sheet material and a second sheet material whose edges are welded, and into which a straw is built, wherein:
 the pouch has a flat shape with no under, 
 the pouch has a baseline where the first sheet material and the second sheet material meet on the floor in the pouch, and the baseline has an upward straight gradient from a bottom point such that the bottom point and the straight gradient form an inverted triangle, 
 the end of the lower end of the straw is positioned at the bottom point, and the lower end of the straw is fixed to the first sheet material or the second sheet material so as to allow the end of the lower end of the straw to stay the same, and 
 the straw is welded together with the first sheet material or the second sheet material and consists of two or more resin layers, and the melting point of the outermost resin layer is lower than that of the rest inner resin layers. 
   
     
     
         2 . A pouch comprising:
 a built-in straw which stores liquid in a space between a first sheet material and a second sheet material whose edges are welded, and into which a straw is built, wherein:
 the pouch is configured to be a standing pouch where under paper is interposed between the lower end of a first sheet material and the lower end of a second sheet material, 
 the pouch has a first baseline where the first sheet material and the under paper meet on the floor in the pouch, the first baseline has an upward straight gradient from a first bottom point such that the first bottom point and the straight gradient from the first bottom point form an inverted triangle, the pouch has a second baseline where the second sheet material and the under paper meet on the floor in the pouch, and the second baseline has an upward straight gradient from a second bottom point such that the second bottom point and the straight gradient from the second bottom point form an inverted triangle, and 
 the end of the lower end of the straw is positioned at the first bottom point or the second bottom point, and the lower end of the straw is fixed to the under paper, the first sheet material or the second sheet material so as to allow the end of the lower end of the straw to stay the same. 
   
     
     
         3 . The pouch with a built-in straw according to  claim 2 , wherein the straw is welded together with the first sheet material or the second sheet material and consists of two or more resin layers, and the melting point of the outermost resin layer is lower than that of the rest inner resin layers. 
     
     
         4 . The pouch with a built-in straw according to  claim 2 , wherein the straw has one or more pin holes with a diameter ranging from 0.1 mm to 3.5 mm. 
     
     
         5 . The pouch with a built-in straw according to  claim 2 , wherein the first sheet material or the second sheet material has a plurality of protrusion parts protruding inwards. 
     
     
         6 . The pouch with a built-in straw according to  claim 2 , wherein the first sheet material or the second sheet has a transparent window or a translucent window which exposes at least the end of the lower end of the straw. 
     
     
         7 . The pouch with a built-in straw according to  claim 2 , wherein the first sheet material or the second sheet has the picture of a straw or a picture displaying a straw printed at a position corresponding to the straw or corresponding to the end of the lower end of the straw on the outer surface of the first sheet material or the second sheet material. 
     
     
         8 . The pouch with a built-in straw according to  claim 2 , wherein:
 the straw has a curved part formed at the lower end of the straw, and   the end of the lower end of the straw is positioned between the center and the margin of the pouch.   
     
     
         9 . The pouch with a built-in straw according to  claim 2 , wherein any one of the first bottom point or the second bottom point is positioned more than or equal to 1 mm lower than the other. 
     
     
         10 . The pouch with a built-in straw according to  claim 2 , wherein the first sheet material or the second sheet material has a window with marks for measurements. 
     
     
         11 . The pouch with a built-in straw according to  claim 2 , wherein the welded edge has a hole on which a finger is hung. 
     
     
         12 . The pouch with a built-in straw according to  claim 2 , wherein the first sheet material or the second sheet material is treated with one light color so as to be semi-transmissible such that the liquid in the pouch is seen. 
     
     
         13 . The pouch with a built-in straw according to  claim 2 , wherein:
 the straw is welded together with the first sheet material and the second sheet material in the state where the straw is positioned close to a lateral-side weld part of any one side out of the welded edge, and   a first overlapping weld part in which the lateral-side weld part, the first sheet material, and the straw are welded, and a second overlapping weld part in which the second sheet material and the straw are welded form a Y-shaped beam.   
     
     
         14 . The pouch with a built-in straw according to  claim 2 , wherein the upper end of the pouch may be configured to have the shapes of a bottleneck, an animal, a circle, a triangle, a rectangular, a hexagon or a character. 
     
     
         15 . The pouch with a built-in straw according to  claim 1 , wherein the straw has one or more pin holes with a diameter ranging from 0.1 mm to 3.5 mm. 
     
     
         16 . The pouch with a built-in straw according to  claim 1 , wherein the first sheet material or the second sheet material has a plurality of protrusion parts protruding inwards. 
     
     
         17 . The pouch with a built-in straw according to  claim 1 , wherein the first sheet material or the second sheet has a transparent window or a translucent window which exposes at least the end of the lower end of the straw. 
     
     
         18 . The pouch with a built-in straw according to  claim 1 , wherein the first sheet material or the second sheet has the picture of a straw or a picture displaying a straw printed at a position corresponding to the straw or corresponding to the end of the lower end of the straw on the outer surface of the first sheet material or the second sheet material. 
     
     
         19 . The pouch with a built-in straw according to  claim 1 , wherein:
 the straw has a curved part formed at the lower end of the straw, and   the end of the lower end of the straw is positioned between the center and the margin of the pouch.   
     
     
         20 . The pouch with a built-in straw according to  claim 1 , wherein the first sheet material or the second sheet material has a window with marks for measurements. 
     
     
         21 . The pouch with a built-in straw according to  claim 1 , wherein the welded edge has a hole on which a finger is hung. 
     
     
         22 . The pouch with a built-in straw according to  claim 1 , wherein the first sheet material or the second sheet material is treated with one light color so as to be semi-transmissible such that the liquid in the pouch is seen. 
     
     
         23 . The pouch with a built-in straw according to  claim 1 , wherein:
 the straw is welded together with the first sheet material and the second sheet material in the state where the straw is positioned close to a lateral-side weld part of any one side out of the welded edge, and   a first overlapping weld part in which the lateral-side weld part, the first sheet material, and the straw are welded, and a second overlapping weld part in which the second sheet material and the straw are welded form a Y-shaped beam.   
     
     
         24 . The pouch with a built-in straw according to  claim 1 , wherein the upper end of the pouch may be configured to have the shapes of a bottleneck, an animal, a circle, a triangle, a rectangular, a hexagon or a character.