Jute nonwoven-based hybrid fabric for flexible and impermeable packaging.

In this study, an attempt has been made to improve the strength and impermeability of jute bonded nonwoven from 95 to 285 g/m² areal density by single side or both side lamination with polyethylene sheet of around 15 − 20% by weight using Ethylene Vinyle Acetate adhesive film. Preheating of nonwoven with 100 °C for 20 min and three subsequent runs show a higher peeling force. Adding poly sheets on nonwoven increases tenacity, total energy, bending modulus, seam strength, and tear strength but reduces thermal insulation and makes air and water permeability zero. The effect of one-side lamination, both-side lamination, and areal density of nonwoven has been studied. Higher g/m² of a nonwoven shows better properties than lower gsm for single-side lamination. The performance of the bag made out of optimised lightweight fabric has been evaluated and compared with the commercial synthetic counterpart, and observed that the developed fabric is better. A process has been suggested without needling. For that light-weight fabric, calendaring temperature, pressure, and speed have been optimised as 150/120 °C, 20KPa, and 0.75 m/min, respectively. [ABSTRACT FROM AUTHOR]