Lintec Corporation

Kohei Tachikawa

Toshio Minagawa

Leonardo M Garcia

Chandrakant C Patel

Akira Katayama

Yasuyuki Amano

Tomoya Yamada

Atusi Saitoh

Terumitsu Kotani

Katsuyuki Oita

Shigenobu Maruoka

A colored film is formed of a transparent film and at least one colored adhesive layer colored with at least one coloring agent and provided on at least one side of the transparent film. The colored adhesive layer comprises a polyester resin as an adhesive, and the coloring agent comprises a pigment and a polyester-base dispersant.

Colored film

A label with a metallic layer of controlled thickness comprising a transparent or semi-transparent film, a metallic layer which is formed by metal deposition, has a light transmittance of 3 to 70%, and is formed on one side of the film, and a layer of an adhesive material formed on the metallic layer. Alternatively, a protective layer may be formed on the metallic layer, and the layer of an adhesive material formed on the other side of the film. The label is transparent even though it shows metallic gloss, has remarkably beautiful appearance, and is suitable for artistic design.

Label with a metallic layer of controlled thickness

Described is a colored film formed of a transparent film and at least one colored adhesive layer arranged on one side of the transparent film. The adhesive layer has been colored by a colorant composed of a pigment and a dispersant. The dispersant comprises a (meth)acrylate ester polymer formed, as essential monomer components, of an aromatic vinyl monomer, a primary to tertiary amino-containing (meth)acrylate ester monomer and a (meth)acrylate ester monomer containing an ammonium group quaternized with an aromatic compound.

A transparent pressure sensitive adhesive label sheet comprises a label film comprising a polyethylene resin of a density of 0.925 to 0.950 g/cm.sup.3 as the main component thereof, having an average of the tensile strength to the MD direction and the tensile strength to the TD direction of 250 kg/cm.sup.2 or more, a 1% secant modulus to the MD direction of 2500 to 5000 kg/cm.sup.2, a haze of 3 to 15% and a gloss of 80% or more and provided with the property suitable for printing by a surface treatment and a release paper laminated with the label film through a layer of a pressure sensitive adhesive material. An opaque pressure sensitive adhesive label sheet is about the same as the above except that it comprises a label film having a total light transmission of 40% or less in place of the haze and the gloss described above. The pressure sensitive adhesive label sheet shows excellent appearance when label marks are printed on the transparent film or on the white opaque film, follows the elongation of the substrate well even after being printed and can be handled smoothly in the process using an automatic labelling machine.

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Tokyo, Japan

Kohei Tachikawa