1. Technical Field
The disclosure relates to a plastic product with three dimensional patterns and a manufacturing method of the plastic product.
2. Description of Related Art
Plastic products are widely used. Some plastic products have decorative patterns thereon for artistry and beauty. Commonly, an In-Mold-Decoration (IMD) technology is developed to provide three dimensional patterns on the plastic products. The IMD technology incorporates a foil on which decorative patterns are printed. The foil is placed in a cavity bounded by molds. The cavity provides a relief pattern area on an inner surface. The decorative patterns adhere to the plastic product after the plastic product is molded and separated from the cavity, thus forming the three dimensional patterns on the plastic product. However, the three dimensional patterns are formed on an outer surface of the plastic product, and are easily worn away over time.
Many aspects of the present embodiments can be better understood with reference to the following drawings. The components in the drawings are not necessarily drawn to scale, the emphasis instead being placed upon clearly illustrating the principles of the present embodiments. Moreover, in the drawings, like reference numerals designate corresponding parts throughout the several views.
The disclosure, including the accompanying drawings, is illustrated by way of examples and not by way of limitation. It should be noted that references to “an” or “one” embodiment in this disclosure are not necessarily to the same embodiment, and such references mean at least one.
Referring to
Step S402, a mold 100 is provided to mold the plastic product, the mold 100 includes a female mold 101 and a male mold 102 mating with the female mold 101.
Step S404, a first film 20 is provided to be attached to a bottom surface 103 of the cavity 104 of the female mold 101. The first film 20 includes a bottom surface 201 facing the bottom surface 103 and a top surface 202 opposite to the bottom surface 201. A first pattern 21, a second pattern 22, and a third pattern 23 are formed on the bottom surface 201. A color layer 24 is printed on the bottom surface 201 around the second pattern 22. A thickening layer 26 is attached to the first pattern 21 and faces towards the bottom surface 103. The thickening layer 26 is printed with transparent ink. A thickening layer 28 is attached to the color layer 24, facing the bottom surface 103. A fourth pattern 27 is printed on the top surface 202. In another embodiment, thickening layers can be attached to the second pattern 22 and the third pattern 23. These thickening layers 26 and 28 may be of different thicknesses.
Step S406, a second film 30 is provided to be attached to the male mold 102. A pattern 31 is printed on the second film 30 opposite to the male mold 102.
Step S408, referring to
Step S410, referring to
The plastic product 1 includes a base 40 molded by injecting resin, a first attaching portion 20a attached to the first side 41 of the base 40, and a second attaching portion 30a attached to the second side 42 of the base 40. The first attaching portion 20a is formed by the first film 20 of the
The second attaching portion 30a is formed by the second film 30 of the
The second attaching portion 30a and the base 40 are made of transparent or semitransparent material. Thus the first pattern 21a, the second pattern 22a, the third pattern 23a, the color layer 24a, the fourth pattern 27a, and the fifth pattern 31a are visible through the second attaching portion 30a and the base 40 as three dimensional patterns. The second pattern 22a is shown as a sunken decoration according to the color layer 24a. The first pattern 21a and the fourth pattern 27a are shown as protruding or relief decorations.
Referring to
Referring to
Referring to
Step S502, a mold 100 is provided to mold the plastic product, the mold 100 includes a female mold 101 and a male mold 102 mating with the female mold 101.
Step S504, a first film 20 is provided to be attached to a bottom surface 103 of the cavity 104 of the female mold 101. The first film 20 includes a bottom surface 201 facing the bottom surface 103 and a top surface 202 opposite to the bottom surface 201. A first pattern 21, a second pattern 22, and a third pattern 23 are formed on the bottom surface 201. A color layer 24 is printed on the bottom surface 201 around the second pattern 22. A thickening layer 26 is attached to the first pattern 21, facing towards the bottom surface 103. The thickening layer 26 is printed with transparent ink. A thickening layer 28 is attached to the color layer 24, facing the bottom surface 103. A fourth pattern 27 is printed on the top surface 202.
Step S506, molten resin is injected into the molding 100, to press the first film 20 tightly against the bottom surface 103. The first pattern 21, the second pattern 22, the third pattern 23, the color layer 24, and the thickening layers 26 and 28 are all compressed tightly so as to leave no gaps or bubbles on the bottom surface 201 of the first film 20.
Step S508, the molten resin in the mold 100 is cooled to form the plastic product 1b, with the first film 20 being attached to one side of the plastic product 1b.
Even though numerous characteristics and advantages of the embodiments have been set forth in the foregoing description, together with details of the structure and function of the embodiments, the disclosure is illustrative only, and changes may be made in detail, especially in the matters of shape, size, and arrangement of parts within the principles of the present disclosure to the full extent indicated by the broad general meaning of the terms in which the appended claims are expressed.
Number | Date | Country | Kind |
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201110208764.6 | Jul 2011 | CN | national |