JP2002205499A - Colored lithographic glass with drawn border variegated with respective complementary colors - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a colored lithographic glass, the border coated with transparent or semi-transparent paint mixed with complementary color pigment on both the front and rear surfaces of a transparent glass is variegated with respective complementary colors under the state that the width variegated with the complementary colors changes by the angles opposing to the surface of the glass. SOLUTION: In the colors of the pigment mixed with a paint coating on the front and rear surfaces of the transparent glass, the color of the pigment of the paint coating on the front surface and the color of the pigment of the paint coating on the rear surface are set to be complementary colors so as to be painted by silk screening printing or the like under the state that the lithographic edge faces of the front and rear surfaces are trued up.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION The present invention relates to a method for coloring a glass surface, in which the outline of a drawing is colored by a complementary color, and the width colored by the complementary color changes depending on the facing angle to the glass surface. The present invention relates to a colored drawing glass that provides a lively beauty to viewers such as windows, show windows, and signboards.

[0002]

BACKGROUND OF THE INVENTION Colored drawing glass used for doors, windows, show windows, signboards, and the like is required to always be noticeable together with aesthetic appearance.

However, the conventionally used colored drawing glass is finished by applying a transparent, translucent or opaque paint to both sides or one side of the glass surface, and the drawing color is flat.

Therefore, a more interesting drawing method for colored drawing glass has been expected.

[0005]

SUMMARY OF THE INVENTION The present invention has been made under the above background, and a transparent or translucent paint mixed with a complementary color pigment is applied to the front and back surfaces of a transparent glass by silk screen printing. Accordingly, an object of the present invention is to provide a colored drawing glass in which the outline of the drawing is colored by complementary colors, and the width colored by the complementary colors changes depending on the facing angle with respect to the glass surface, so that the colored drawing glass is interesting.

[0006]

Means for Achieving the Object The composition of the paint applied to the front and back surfaces of the transparent glass is as follows.

[0007] The color of the pigment mixed in the paint applied to the front surface and the color of the pigment of the paint applied to the back surface have a complementary color relationship.

[0008] The drawing end surfaces on the front and back surfaces are aligned and applied by silk screen printing or the like.

[0009]

According to the above arrangement, the surface of the formed coating film looks colorless because the front and back paints appear to overlap with each other in a portion having a complementary color relationship.

When viewed at right angles to the glass surface, the paint having a complementary color relationship on the front and back sides appears to be colorless when viewed at right angles to the glass surface.

When viewed from a direction which is not perpendicular to the glass surface, the synergistic effect of the angle (referred to as α degrees) deviated from the perpendicular and the thickness (referred to as t) of the transparent glass results in the drawing of the end face and the back face of the drawing of the front surface. Is displaced by t × Tanα.

[0012] When the light is passed only through the front surface, only the color of the front surface is observed in the misaligned portion between the drawing end surface of the front surface and the drawing end surface of the rear surface. Only the color is observed.

Further, the width of the observed colored portion on the front surface or the back surface of the drawing end surface changes with a change in the angle of the glass surface.

Therefore, as the observer moves with respect to the glass surface, the color appearing on the end surface of the drawing changes with the color of the pigment on the front surface, the colorlessness, and the color of the pigment on the rear surface which is complementary to the front surface, and also changes the color. The width that appears is also changed every moment and observed.

[0015]

Embodiments of the present invention will be described below with reference to the drawings.

In FIG. 1, symbols A to F represent the position and direction of the line of sight of the observer with respect to the glass surface.

When the glass surface is observed from the positions and directions of the lines of sight A, B, C, and D, the color becomes colorless because the painted surface 2 on the front surface and the painted surface 3 on the back surface appear to overlap.

When the glass surface is observed from the position and direction of the line of sight E, the color of the surface color portion appears in a portion 7 of the transparent glass 1 which is observed as a thickness 4 × Tanα5 = deviation of the front and back drawing end surfaces.

When the glass surface is observed from the position and direction of the line of sight F, the thickness 8 of the transparent glass 1 × Tanα′6 = the portion 8 observed as the deviation of the drawing end surface between the front and back surfaces has the color of the color portion on the back surface. Appear.

The portion 7, which is observed as a deviation of the drawing end face,
The width 8 is observed when the angle at which the glass surface is viewed is changed with changes in the angles α and α ′ deviated from the right angle to the glass surface.

[0021]

According to the first aspect of the present invention, the color appearing on the end face of the drawing changes with the color of the pigment on the surface, the colorlessness,
The color of the pigment on the back surface, which is complementary to the surface, changes with the color of the pigment on the back surface.

[Brief description of the drawings]

FIG. 1 shows that the effect of the present invention appears depending on the cross-section of a coating film in which a coating material applied to be drawn on the front and back surfaces of a transparent glass by silk screen printing or the like and the position and angle of a line of sight of an observer with respect to the glass surface. Diagram explaining

[Explanation of symbols]

A Position and angle of the observer's line of sight with respect to the glass surface B Position and angle of the observer's line of sight with respect to the glass surface D Position and angle of the observer's line of sight with respect to the glass surface E Glass Position and angle of the observer's line of sight with respect to the surface F Position and angle of the observer's line of sight with respect to the glass surface 1 Transparent glass 2 A part coated with paint on the back side and a complementary color paint for drawing on the front side 3 Drawing on the back side 4 The thickness of the transparent glass: t 5 The angle between the position of the line of sight of the observer and the angle E with respect to the glass surface and the angle perpendicular to the glass surface: α 6 Glass surface The angle between the position of the observer's line of sight and the angle E to the direction perpendicular to the glass surface with respect to the angle: α ′ 7 The position of the observer's line of sight with respect to the glass surface and the angle E are observed as a deviation of the drawing end surface. 8 The part observed as the deviation of the drawing end face depending on the position of the line of sight of the observer with respect to the glass surface and the angle F. 9 The pigment mixed with the paint on the back side for drawing on the front side and the paint forming a complementary color and another pigment are mixed. A portion to which a paint that has been mixed or that has not been mixed with a pigment has been applied. No paint applied parts

Claims (1)

[Claims] 1. A transparent or translucent paint mixed with a complementary color pigment is applied to both front and back surfaces of a transparent glass, and the outline of the drawing is colored by complementary colors, and the width colored by the complementary colors is the facing angle to the glass surface. Colored drawing glass that changes with