JPH0231154B2 - - Google Patents

Description

[Detailed Description of the Invention] Industrial Field of Application The present invention relates to a cut foil material, a kind of material for obtaining cut foil by slitting it into narrow widths, particularly a roll or rotary screen on the front and back sides of the cut foil material. Multi-color printing or printing of two or more colors, that is, multi-color overprinting or printing (hereinafter abbreviated as multi-color overprinting except as described in "Means for solving problems") This paper relates to a method for manufacturing cut foil material that displays patterns.

When applying a plane-symmetrical pattern to the front and back sides of the cut foil material using such printing or stamping methods, the front and back sides of the cut foil material are pasted together to create a pattern on the front and back sides of the cut foil material. Compared to the case with
Not only is productivity excellent, but alignment of front and back patterns is also easy.

It is important that the patterns on the front and back sides of cut foil originals with patterns on both sides match not only the designs, but also the textures of the colors on both sides.

Generally, the reason why a cut foil material is made to have a two-sided pattern that is plane symmetrical on the front and back is that when the cut foil obtained by slitting it is woven into the fabric during weaving, the pattern element (the pattern element This is because even if the part (in which the pattern was initially subdivided) is turned over, the pattern element on the back side occupies the front side, making it a kind of reversible by cutting foil in the ability to express the pattern.
The patterns that appear on textiles are an accumulation of woven cut foil and adjacent pattern elements of cut foil. The greatest characteristic of the technique of creating patterns on textiles by weaving patterned cut foil is that the pattern originally appearing on the original cut foil is reproduced on the fabric without much distortion; in other words, the pattern is hardly distorted. It is particularly suitable for delicate and/or elegant patterns that can appear on textiles as similar to images. Therefore, it is important that the reversibility of the pattern appearance of cut foil is such that the texture of the pattern is consistent on the front and back sides.

Conventional technology and its problems However, until now, there is still no industrial method to ensure that the patterns on the front and back sides of multi-color overprinting match not only the design, but also the texture of the hues on the front and back sides of paper cut foil sheets. This method has not been developed yet, and there is a problem in that it is not possible to fully utilize the usefulness of this type of cut foil material due to the aforementioned properties.

Therefore, the inventors of the present invention have created a planar symmetrical pattern of multicolor overprinting on the front and back sides of the paper-cut foil material by using the above-described printing or stamping method. We have conducted various researches to make the texture of the color match both front and back, but
In the process, I encountered the following problem.

Theoretically, it can be used as a color-coded roll or rotary screen for printing or imprinting patterns.
If you create a pattern for the front side and a pattern for the back side of the drawing lines that are symmetrical to each other, and use these to create a multicolor overprint pattern on the front and back sides of the cut foil material, the colors and textures of the front and back patterns will be the same. However, when we actually tried this, we found that even if the printing ink density and ink coverage were the same on the front and back rolls or rotary screens for each color, the texture of the hue of the front and back patterns was inconsistent. forced into alignment.
In particular, in the case of multicolor overprinting of three or more colors, the color mismatch between the front and back patterns is significant.

As a result of investigating the cause of this, the inventors of the present invention found that the photoengraving method, which is one of the best plate-making methods in terms of faithfulness in copying the drawing line pattern to the original, was used to achieve the highest precision possible industrially. Even if two rolls or rotary screens are made underneath, the halftone dots or holes in the line pattern between the two rolls or rotary screens may differ slightly in one or more of size, density, and depth. It was discovered that this was the cause of the inconsistency in the texture of the hues of the multicolor overprinting of the front and back patterns.

The present invention was completed based on these findings through further research and experimentation.The purpose of the present invention is to improve not only the matching of the designs but also the hue of the multicolor overprinted patterns on the front and back sides. It is actually industrially guaranteed that the texture of the front and back sides is consistent, so it is particularly suitable when the pattern is an abstract painting and a pattern with shading, and it is possible to easily match the texture of the hue of the front and back patterns. It is an object of the present invention to provide a method for producing a cut foil material using the printing or stamping method described above.

Means for Solving the Problems The above-mentioned object of the present invention is to form a planar symmetrical pattern on the front and back sides of a cut foil material by color-specific printing, multicolor overprinting using a printing roll or rotary screen, or printing method. A method for manufacturing a cut foil original fabric exhibiting the above-mentioned roll or rotary screen, wherein the roll or rotary screen has a left-right symmetrical pattern with the axial direction of the roll or rotary screen being the left-right direction, and the roll or rotary screen is Alternatively, a pattern is applied to the surface of the cut foil material using a rotary screen.
After that, the roll or rotary screen is placed on the cut foil raw material with a pattern on its surface, or the material is placed on the roll or rotary screen in a state where the left and right sides are reversed compared to the surface pattern construction. , and the relative arrangement of the material and the roll or rotary screen is such that the roll or rotary screen is substantially on the back side of the material, and the pattern is formed on the back surface of the cut foil raw material by the roll or rotary screen. This is achieved by a method for manufacturing cut foil material, which is characterized in that multicolor overprinting or printing is performed using the roll or rotary screen for each color.

In the present invention, when applying a pattern to the back side of the cut foil raw material, the required relative orientation between the roll or rotary screen and the material is determined by:
Generally, the original cut foil material is left and right as it was when the surface pattern was applied, and the front and back sides are left in the same direction as before, and the direction of the roll or rotary screen is reversed (however,
In that case, by arranging the material so that the roll or rotary screen substantially occupies the back side of the cut foil raw material, or without changing the orientation of the roll or rotary screen,
This can be done by flipping the cut foil raw fabric material in the same front-to-back relationship as when the surface pattern was applied, and as a result, reversing the left and right sides of the material compared to when the surface pattern was applied.

In the present invention, the alignment of the back surface pattern with respect to the surface pattern of the cut foil original material may be performed by any suitable method known per se.

Effects According to the present invention, a roll or rotary screen that applies a pattern to a cut foil raw material by printing or stamping is applied to a roll or rotary screen that has symmetrical pattern lines with the axis direction as left and right, A pattern is applied to the surface of the cut foil material using the roll or rotary screen, and then between the roll or rotary screen and the cut foil material, the relative left and right direction is reversed from when the surface pattern was applied. After changing the orientation of the roll or rotary screen or cut foil raw material, and with the relative arrangement of the material and the roll or rotary screen in a predetermined arrangement, apply the paper to the back side of the cut foil raw material. Under the specification that the pattern is applied using a roll or rotary screen in a manner that matches the surface pattern, by applying the pattern using a separate roll or rotary screen for each color for multicolor overprinting, it is possible to apply the pattern using the same roll or rotary screen for the same color. Patterns are created on the front and back sides of the cut foil material using a screen, and the obtained cut foil material is reversible so that the front and back sides have a symmetrical pattern.

That is, according to the present invention, a predetermined pattern of the same color can be reversibly applied to the front and back sides of the cut foil raw material using the same roll or rotary screen, so that it is possible to reversibly apply a predetermined pattern to the front and back sides of the cut foil raw material. The pattern on the front and back sides will appear consistent on the front and back sides unless the density and ink density of the printing ink (or printing paste) are changed in the printing or printing on the front and back sides. That will happen. Furthermore, this desirable result can be easily achieved by using the same roll or rotary screen for forming the pattern on the front and back sides.

Effects of the Invention As described above, according to the present invention, it is actually guaranteed industrially that not only the patterns on the front and back sides match, but also the texture of the hue of multicolor overprinting matches on the front and back sides. It is an object of the present invention to provide a method for manufacturing cut foil stock using the above-described printing or stamping method, which is particularly suitable for abstract patterns and shading patterns, and which can easily match the texture of the hues of the front and back patterns. It can be done.

Furthermore, according to the present invention, according to the relative predetermined orientation between the roll or rotary screen and the cut foil original fabric material and the predetermined arrangement of the material, roll, or rotary screen during surface pattern construction, the roll or The drawing line of the rotary screen can be brought into contact with the same front-to-back (circumferential) position relative to the front and back of the cut foil material, and therefore, the same front-to-back (circumferential) position can be brought into contact with the same front-to-back position on the front and back sides of the cut foil material. Even if the pattern to be applied is a pattern with different gradations in the front and back direction of the cut foil material for one circumference of the roll or rotary screen, the pattern can be applied to a roll with a line pattern of the corresponding gradation. Alternatively, a rotary screen can be used to display the texture of the color as matching the front and back sides.

Embodiments Next, embodiments of the method of the present invention will be described with reference to the accompanying drawings.

In the figure, 1 is a printing or printing roll or a printing rotary screen (hereinafter abbreviated as roll).
The roll 1 has drawing lines forming left-right symmetrical patterns a, a', b, and b', with the axial direction being the left-right direction. In the illustrated embodiment, the drawing lines are shown schematically and schematically in FIG. 1 and are designated 2, 2', 3, 3'. In FIG. 1, roll 1 is shown in unfolded form.

Reference numeral 4 is a cut foil raw material, and the material 4 is a plastic film or other suitable base film with Japanese paper or plastic film such as base paper for gold or silver flat foil pasted and laminated on the front and back surfaces, more preferably. It is sufficient to use a material made by pasting and laminating Japanese paper and plastic film.

A pattern (not shown) following the drawing lines 2, 2', 3, and 3' is printed or stamped on one side (the front surface) of the cut foil raw material 4 using the roll 1 (FIG. 2). On the back side of the obtained cut foil material 4 with a pattern on the surface,
A pattern (not shown) following the drawing lines 2, 2', 3, and 3' is printed or stamped by the roll 1. When applying this back pattern, the back pattern is aligned with the surface pattern of the material 4 by an appropriate method known per se, and the material 4 is kept in the left and right orientation when the surface pattern is applied, and the roll 1 The left and right sides are changed from when the surface pattern was applied, and the material 4 [or roll 1] is placed so that the roll 1 is on the back side of the material 4 (Figure 3), or the roll 1 is left as it is when the surface pattern is applied. Orientation and deployment, material 4
The front and back are reversed, with the front and back being the same as when the surface pattern was applied, and as a result, the left and right sides are reversed from when the surface pattern was applied, and the back side is the roll 1 side (Figure 4). In addition, in order to make it easier to understand the relative left-right change between roll 1 and material 4 described here, the right side of roll 1 and material 4 when the surface pattern is applied is defined as the absolute right, and it is referred to as the second 4th from the figure
Indicated by the word "right" in the figure.

In the pattern construction described above, the directions of rotation of the roll 1 and movement of the material 4 are as indicated by the arrows shown in FIGS. 2 to 4.

For overprinting of two or more colors, the procedure for creating patterns on rolls for each color is the same as described above.

If the material 4 is long, as the front surface pattern construction progresses, the material with the pattern applied is wound onto a winding beam, and when the back surface pattern is applied, the back surface pattern is applied while rewinding the material. good.

Under the above-mentioned procedure, roll 1 on the left side of the surface.
The pattern follows the lines 2 and 3, the line 2' is on the right side of the surface,
A cut foil with a pattern following lines 2' and 3' on the right side of the back (initially referred to as the right side), and a pattern following lines 2' and 3' on the left side of the back (initially referring to the left side). Obtain the original fabric. The pattern of the cut foil original fabric is a symmetrical pattern on the front and back because the drawing lines 2, 2' and 3, 3' of the roll 1 are symmetrical. In addition, since the obtained patterns on the front and back sides are of the same color and are created using the lines of the same roll 1, the texture of the hue of the multicolor overprinting is also consistent between the front and back sides.

[Brief explanation of drawings]

FIG. 1 is a developed plan view schematically and schematically showing an example of a printing or impression roll or a rotary screen for printing applied in the present invention, and FIG. FIGS. 3 and 4 are perspective views showing different aspects of back surface pattern construction. 1... Printing or printing roll or printing rotary screen, 2, 2', 3, 3'... Lines of the same roll or rotary screen, 4... Cut foil raw material, a, a', b, b '... Same as the above roll or rotary screen pattern.

Claims (1)

[Claims] 1. A method for producing a cut foil material in which a plane-symmetrical pattern is created on the front and back sides of the cut foil material by color-specific printing or multicolor overprinting using a rotary screen or printing method, which method includes the above-mentioned methods. As the roll or rotary screen, a roll or rotary screen having a left-right symmetrical pattern with the axial direction of the roll or rotary screen as the left-right direction is applied, and the roll or rotary screen is used to apply the pattern to the surface of the cut foil raw material. , After that, the roll or rotary screen is placed on the cut foil raw material with the pattern on its surface, or the material is placed on the roll or rotary screen in a state in which the left and right directions are reversed from those in the surface pattern construction. In addition, the relative arrangement of the material and the roll or rotary screen is such that the roll or rotary screen is substantially on the back side of the material, and a pattern is formed on the back surface of the cut foil raw material by the roll or rotary screen. 1. A method for manufacturing cut foil material, which is characterized in that multicolor overprinting or printing is performed using a roll or rotary screen as described above for each color.