| 摘要 |
The present invention relates to a method for coating a car sheet sponge with olefin. The method for coating a car sheet sponge with olefin comprises: a supply step of supplying a raw coating fluid; a compounding step of mixing and extruding the raw coating fluid; a spray step of coating a car sheet sponge with the raw coating fluid by using a spray method; an infiltration step of infiltrating the raw coating fluid into the car sheet sponge by maintaining the car sheet sponge, on which the raw coating fluid has been sprayed, at a predetermined specific temperature for a predetermined period of time; a dry step of drying the car sheet sponge; and a casting step of hardening the car sheet sponge; wherein the raw coating fluid comprises olefin-based polypropylene or polyethylene. According to the present invention, adhesive force is improved by coating the car sheet sponge with olefin by using a spray method, and thus coating is not easily separated from the sponge by external friction. Furthermore, the car sheet sponge is coated with olefin by using a spray method, and thus the sponge is protected against thermal damage. Moreover, drying is performed within a short period of time after spray, and thus drying and hardening times are shortened, thereby improving efficiency of manufacture of products. |
