LOW AREAL DENSITY-TYPE WATER-BARRIER MATERIAL FOR COMMUNICATION CABLE AND COMMUNICATION CABLE PRODUCED BY USING THE MATERIAL

摘要

PURPOSE: To improve the wrapping workability of a water-barrier tape around a cable by optimizing the rigidity of the water-barrier tape and to give a wrapped cable having good appearance free from wrinkles. ;CONSTITUTION: This water-barrier material has a double-layer structure composed of a water-absorbing composition layer formed on a sheet substrate at an areal density of ≤40g/m² or a sandwich structure containing a water- absorbing composition layer having an areal density of ≤40g/m² and sandwiched between a pair of sheet substrates. The rigidity of the material is 0.2-1.5gfcm²/ cm in longitudinal direction and 0.2-0.6gfcm²/cm in lateral direction.;COPYRIGHT: (C)1996,JPO