To provide a manufacturing method of a patterned blow-molded product which is hardly exfoliated, imparted with a clear color pattern (including letters or the like) together with a three-dimensional irregular pattern, and rich in amusement, and the patterned blow-molded product obtained by the manufacturing method.
A patterned blow-molded product has an inner layer 1 composed of a colored resin and an outer layer 2 composed of a transparent resin, an irregular pattern P is imparted to the surface of the outer layer 2, only the surface of the inner layer 1 corresponding to a salient constituting the irregular pattern P is changed in color by laser light which is radiated toward the inner layer 1 from the outside of the salient of the outer layer 1, and a color-changed portion can visually be confirmed as a color pattern Q through the outer layer 1.
BABA YUTAKA
| JP2012006387A | 2012-01-12 | |||
| JP2004359344A | 2004-12-24 | |||
| JPH09141766A | 1997-06-03 |
Iisaki Aika
Yuko Saito
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