Drying of belt-like object |
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| 申请号 | JP28140888 | 申请日 | 1988-11-09 | 公开(公告)号 | JPH02131174A | 公开(公告)日 | 1990-05-18 |
| 申请人 | Fuji Photo Film Co Ltd; | 发明人 | OGAWA MASAHARU; HAMANAKA TATSUYA; | ||||
| 摘要 | PURPOSE: To make possible efficient drying of a belt-like object at high speed and without large space by combining hot air drying with heating roll drying in the continuous drying process of a belt-like object with applied coating liquid containing an organic solvent. CONSTITUTION: A belt-like object 1 which is fed out of a material roll 2 and is coated with a coating liquid 6 using an application roller 5 is sent to a hot air dryer 8. Then the object is subjected to a hot air adjusted to the temperature level of about 50 to 150°C at a velocity of about 3 to 30m/s. A solvent contained in the coating liquid evaporates gradually in the hot air dryer 8 and the strap- like object 1 reaches a 'set to touch' state at the outlet. The strap-like object 1 in this state is sent to a heating roll dryer 9 for evaporation of a residual solvent and complete drying. After this, the belt-like object is taken up by a winding roll 3. Consequently, the drying capability is significantly increased and the drying process is shortened to utilize the space effectively and increase an application speed. In addition, the quality difference due to a difference in the thickness of the belt-like object can be minimized because the thermal conductivity of the heating roll is significantly high. COPYRIGHT: (C)1990,JPO&Japio |
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