| 摘要 |
PROBLEM TO BE SOLVED: To improve the ratio of taking-out of a glass paste filling a packaging bag, and enable wasteless use of this glass paste at the destination.SOLUTION: A glass paste packaging bag 1 includes: a bag body 2; a cylindrical opening part 3 fixed on the bag body 2 and for forming a port opening for filling and taking out the glass paste; and a lid part 4 for opening or closing an upper end opening of the cylindrical opening part 3. On the bag body 2, the upper part of a cylindrical barrel part 2a is closed by a top part 2b, and the bag body 2 exhibits such a shape that the lower part of the barrel part 2a is closed by an inner diameter reducing region 2c extending from the barrel part 2a and the lowest part 2d continuous to the inner diameter reducing region 2c. The inner diameter reducing region 2c is a part extending downward accompanied with a reduction of the diameter from the lower end of the barrel part 2a and is positioned at the bottom part of the bag body 2, and is connected to the lowest part 2d positioned at the lowest position of the bag body 2. The inner face of the inner diameter reducing region 2c is a tapered face 2c1 in which the inner diameter is reduced by a definite slope as it approaches the lowest part 2d. |
