| 摘要 |
This process comprises the steps of mixing fibres, such as polyester or other fibres, with silicone treated fibres of various nature and origin to produce, after carding, a web (1) of mixed fibres which is then treated, on one face, with a mixture (1) of sticky plastic bonding agents and subsequently pressed through a calender (4) having two or more suitably heated cylinders (4 min , 4 sec ) which reduces the thickness of the web (1) itself. At the output of the cylinders (4 min , 4 sec ) of the calender (4) the product (1) remains, for a short time, adhering with its sticky surface to the corresponding cylinder (4 min ), thus being subjected to a slight expansion process which causes the formation of air pockets (5). |
