| 摘要 |
PURPOSE:To obtain the title cloth capable of obtaining sufficiently air-permeable, oil-repellent hood insulator free from cloggings by impregnating a nonwoven fabric raw material with a specified amount of an oil-repellent. CONSTITUTION:A nonwoven fabric raw material 1 is folded and metered so as to be brought to a specified METSUKE level, and the resultant material is opened and laminated followed by application of needle punch processing while being extended, thus processing into a continuous lamellar form. Thence, said lamellar product is continuously delivered into a dipping tank 4 filled with a binder and an oil-repellent 3 selected from silicone- and fluorine-based ones, and passed through a pair of rollers 5 to remove excess binder and oil- repellent followed by volatilizing 6 the solvent component and then winding on a roll 7, thus obtaining the objective stamping cloth impregnated with 1-3wt.% of the oil-repellent. The insulators produced from this cloth will not cause deterioration of their performances due to impregnation of gasoline, can retain the initial performances, and, furthermore, is free from blur of the appearance because of attaching no oily impurities. |
