| 摘要 |
Multitube sheath or bag for enclosing the active material of positive plates in electric lead batteries. The bag comprises four discrete fabrics simultaneously made on a shuttleless loom. The fabrics are interconnected along parallel lines by means of one or more weft threads. Thereby, every side of each tube comprises a double wall formed by two different fabrics, of which the inner fabric has weft threads of glass yarn and warp threads of synthetic yarn, the number of weft threads being much larger than that of warp threads at a same length of the fabric involved. The two outer fabrics are essentially made of synthetic yarn. |
