Radiation imagery chemistry: process – composition – or product th – Plural exposure steps
Patent
1990-12-20
1994-03-22
Loney, Donald J.
Radiation imagery chemistry: process, composition, or product th
Plural exposure steps
430904, 156196, 156209, 156219, 15624416, 1562722, 1562733, 1562735, 1562755, 156277, 427271, 427369, 4273722, 427504, 427521, 101487, 101490, G03C 500, B32B 3100
Patent
active
052963403
DESCRIPTION:
BRIEF SUMMARY
TECHNICAL FIELD
The present invention relates to a decorative sheet having a three-dimensional effect, and a process for the preparation thereof.
BACKGROUND ART
A decorative sheet most popularly used for the production of furniture and construction materials is a laminate of a pattern-printed plastic sheet and a transparent plastic sheet This decorative sheet is poor in three-dimensional effect and is inevitably cheap in appearance.
As decorative sheets having a three-dimensional effect, there are known a sheet formed by pressing resin chips and a sheet obtained by extruding a resin through many nozzles, solidifying the extrudate and slicing the solid. However, these decorative sheets are defective in that the designs that can be manifested are restricted and mass production of sheets having the same design is difficult.
DISCLOSURE OF THE INVENTION
It is an object of the present invention to provide a decorative sheet having a three-dimensional beautiful design and a process for the preparation thereof.
Typical fundamental embodiments of the decorative sheet of the present invention are shown in FIGS. 1 through 4. Namely, the decorative sheet of the present invention includes a sheet comprising a transparent plastic first substrate sheet 11 and a pattern-printed layer 2 partially or wholly embedded in one or both of the surfaces of the first substrate sheet 11 (FIG. 1), a laminate sheet formed by laminating a transparent plastic second substrate sheet on one surface of the abovementioned sheet (FIG. 2), and a sheet formed by laminating a plastic third substrate sheet 13 having a concealing effect on one surface of the above-mentioned sheet or laminate sheet (FIG. 3 or 4).
BRIEF DESCRIPTION OF DRAWINGS
FIGS. 1 through 4 are sectional diagrams illustrating basic embodiments of the decorative sheet of the present invention.
FIGS. 5 through 7 are sectional views illustrating preferred embodiments of the decorative sheets of the present invention.
FIGS. 8 through 12 illustrate the preparation process of the present invention, which are sectional views, similar to FIGS. 1 through 4, showing semi-manufactured products after the respective steps.
BEST MODE FOR CARRYING OUT THE INVENTION
Typical basic embodiments of the decorative sheet of the present invention are shown in FIGS. 1 through 4. Namely, the decorative sheet of the present invention includes a sheet comprising a transparent plastic first substrate sheet 11 and a pattern-printed layer 2 partially or wholly embedded in one or both of the surfaces of the first substrate sheet 11 (FIG. 1), a laminate sheet formed by laminating a transparent plastic second substrate on one surface of the abovementioned sheet (FIG. 2), and a sheet formed by laminating a plastic third substrate sheet 13 having a concealing effect on one surface of the above-mentioned sheet or laminate sheet (FIG. 3 or 4).
In the present invention, by laminating the second substrate sheet or the third substrate sheet on the surface, in which the pattern-printed layer of the first substrate sheet is partially embedded, a part of the pattern-printed layer is embedded in not only the first substrate layer but also the second or third substrate sheet.
As pointed out hereinbefore, a transparent plastic sheet can be used as the first and second substrate sheets. The term "transparent" used for the plastic sheet is meant not only "colorless transparent" but also "colored transparent", and so-called "delustered transparent" sheet which is formed by adding a delustering agent to deluster the surface. Furthermore, a glittering pigment described hereinafter can be incorporated into the plastic material, so far as the transparency is not degraded.
Sheets of the same kind can be used for the first and second substrate sheets, or sheets differing in the material or color can be used for the first and second substrate sheets.
The concealing effect mentioned above can be imparted to the third substrate sheet by kneading a pigment having a concealing effect into a sheet-forming material and making
REFERENCES:
patent: 4117181 (1978-09-01), Minami et al.
patent: 4499126 (1985-02-01), Suzuki et al.
patent: 4801495 (1989-01-01), Vander Hoevan
patent: 4952462 (1990-08-01), Bright
Doi Tomio
Horie Yoshiharu
Nakamura Norinaga
Shimizu Kenshi
Takeko Osamu
Dai Nippon Insatsu Kabushiki Kaisha
Loney Donald J.
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