| 摘要 |
PURPOSE: When attaching a base body and a surface material, decolorization or deformation of the surface material by injection heat is prevented, thereby improving productivity and reducing cost. CONSTITUTION: A method for injection forming of interior body of an automobile comprises a step of low pressure injection, high pressure injection, or surface integrated injection. In the low pressure injection method, a surface material is injected first and a base injection liquid is injected to form a base body and attach the surface material simultaneously. In the high pressure injection method, the base injection liquid is injected first in a high pressure to form a base body and the surface material is injected, and pressed and cooled. Water is sprayed to the surface material before introducing the surface material in the injection forming.
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