Stock material or miscellaneous articles – Structurally defined web or sheet – Including aperture
Reexamination Certificate
2000-03-07
2003-10-14
Hess, Bruce H. (Department: 1774)
Stock material or miscellaneous articles
Structurally defined web or sheet
Including aperture
C428S117000, C428S300700, C428S304400, C428S195100
Reexamination Certificate
active
06632505
ABSTRACT:
TECHNICAL FIELD
This invention relates to the technical field of printing materials. More particularly, it relates to a printing material suitable for ink jet printers.
BACKGROUND ART
Advertising posters have been adhered to windowpanes of buses and trains, windows in buildings, etc. It has been a practice to produce these advertising posters by multi-color printing. Thus, printing materials exclusively for multi-color printing are printed by using ink jet printers to give vivid color images.
When such an advertising poster is adhered to, for example, a windowpane of a bus, it is needless to say that the printed face should be seen from the outside. Moreover, it is favorable that the poster cannot be seen in the bus because of its shielding effect but the sun. can be shining in through it and passengers can look out of the window owing to its light transmission properties.
In FIGS.
4
(
a
) and (
b
), the numerical symbol
100
stands for an advertising poster of the above-described type wherein an image
107
is formed on a printing material
110
.
In this printing material
110
, a synthetic paper
102
is adhered to a base material
101
made of a black resin film and a number of holes
106
piercing through the base material
101
and the synthetic paper
102
are formed.
After forming the holes
106
in the printing material
110
, an aqueous ink is sprayed onto the synthetic paper
102
with an ink jet printer. When the aqueous ink
105
permeating the synthetic paper
102
is fixed, a desired image
107
is formed.
In a case of using this advertising poster
100
, it is adhered to a windowpane from the inside with the synthetic paper
102
having the image formed thereon facing to the window. Thus, the image
107
faces outside so that it can be seen by pedestrians. Although the black base material
101
faces inside, passengers can look out of the window through the holes
106
. In this case, the inside of the bus cannot be seen from the outside, since the holes
106
are very small.
Since a desired advertisement can be economically made by using the advertising poster
100
, the demand for posters of this type has been increasing in recent years. However, an image printed on the synthetic paper
102
by using an aqueous ink is blurred, which makes the image
107
on the advertising poster
100
of the conventional art unclear.
DISCLOSURE OF THE INVENTION
The present invention, which has been made to overcome the above-mentioned troubles encountering in the prior art, aims at providing a printing material on which a vivid image can be printed by using ink jet printers.
To achieve this object, the printing material according to the present invention consists of a base material made of a resin film, a white layer formed on the base material, and an absorption layer formed on the white layer. The above-mentioned white layer contains titanium oxide and a hydrophilic resin, while the above-mentioned absorption layer contains a water-absorbing resin. Moreover, the base material, the white layer and the absorption layer are provided with a number of holes piercing therethrough.
The term “hydrophilic resin” means a resin which wets without repelling water (i.e., having no hydrophobic nature) but does not swell with water. Water-soluble resins and water-insoluble ones both fall within the scope of the hydrophilic resin. In the present invention, use can be made of, for example, a polyvinyl resin as this hydrophilic resin.
On the other hand, the term “water-absorbing resin” means a resin which swells with water but is insoluble in water. Owing to these characteristics, an aqueous ink can permeate the water-absorbing resin. In the present invention, use can be made of protein in this water-absorbing resin.
In the present invention, it is advantageous for forming an advertising poster that the base material is a black one.
REFERENCES:
patent: 3861952 (1975-01-01), Tokumoto et al.
patent: 4912014 (1990-03-01), Feldman
patent: 0 663 300 (1994-12-01), None
Abe Tetsuya
Nozawa Takashi
Tajima Katsumi
Ferguson L.
Hess Bruce H.
Oliff & Berridg,e PLC
Sony Chemicals Corp.
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