Full
Outline
To address the issues of complex processing, poor weather resistance and easy rotting and deformation of natural wood grain when applied to automotive interiors, this paper systematically studies the core characteristics of three processes in the in-mold decoration (IMD) technology system: in-mold insert injection molding (IML), in-mold transfer (IMR), and insert injection molding (INS). To compare the process compatibility of gravure printing and screen printing in the preparation of wood-like textures, multiple sets of ink-level DOE tests were designed to optimize the visual effect of the texture, and comprehensive performance verification was carried out in accordance with the industry standards of automotive interior parts. The results show that the gravure printing + INS process, with a high tensile rate of 30% to 50%, a surface hardness of 3H+, and excellent weather resistance, has become the optimal choice for preparing complex large curved surfaces of automotive interiors imitating wood textures (without light transmission requirements). Screen printing +IML, the optimized ink hierarchy scheme (DOE 4-4) can achieve a low gloss of 7.3, with excellent matte effect and wood grain layering, making it the optimal process solution for the preparation of wood texture imitation with backlight/working indication. The prepared wood-textured imitation products have passed rigorous tests such as wear resistance, chemical reagent resistance, temperature shock, and damp heat. All performance indicators meet the requirements for automotive interior parts.
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| 科 Family | 属数 Number of genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) | 属 Genus | 种数 Number of species | 占总种数比例 Percentage of total species (%) |
|---|---|---|---|---|---|---|
| 鹅膏菌科Amanitaceae | 2 | 11 | 5.26 | 鹅膏菌属 Amanita | 10 | 4.78 |
| 小菇科 Mycenaceae | 2 | 12 | 5.74 | 丝盖伞属 Inocybe | 5 | 2.39 |
| 多孔菌科 Polyporaceae | 8 | 14 | 6.70 | 蜡蘑属 Laccaria | 5 | 2.39 |
| 红菇科 Russulaceae | 3 | 23 | 11.00 | 小皮伞属 Marasmius | 6 | 2.87 |
| 小菇属 Mycena | 11 | 5.26 | ||||
| 光柄菇属 Pluteus | 5 | 2.39 | ||||
| 红菇属 Russula | 17 | 8.13 | ||||
| 栓菌属 Trametes | 5 | 2.39 |
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