JP3333912B2 - Luminescent ink and luminous printed matter using the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to relates to phosphorescent ink and phosphorescent printed matter using the same, and more particularly, based on the printing surface by the phosphorescent ink and accumulating light inks exhibiting a white Irohatsu light in the dark By providing a pattern of a required color tone with a transparent colored resin on its upper surface, if the printed surface of the base exhibits white light emission in the dark, display with the white light emission of the printed surface of the base and the transparent colored resin is a color tone of the symbols have is relates to phosphorescent printing capable of expressing more vivid color tone of the synthesized figure pattern.

[0002]

2. Description of the Related Art Conventionally, there are only two types of color phosphorescent pigments that are practically used: a phosphorescent pigment that emits blue light in the dark and a phosphorescent pigment that emits green light in the dark.

On a printing surface printed using an ink (luminous ink) obtained by mixing the two types of luminous pigments with a transparent resin vehicle, a pattern (picture) having a desired color tone is formed with a transparent colored resin. When provided, the printing surface of the luminous ink plays the role of a backlight, so in the dark, the blue (blue) and green (green) portions of the self-luminous system in the pattern of the transparent colored resin emit vivid light. However, the other color portions hardly emitted light, and the pattern and color tone of the transparent colored resin could not be reproduced.

Therefore, in order to emit a color (for example, red) other than the self-luminous color in the dark, ordinary dyes and pigments (for example, red dye and red pigment) are added to the two types of luminous inks. Was added to prepare a colored ink, and printing was performed with this ink. As a result, the luminance of the printed matter in the dark including the blue and green colors was greatly reduced, making it impractical.

[0005]

Therefore, in the conventional printed matter using the luminous pigment, there is a great restriction on the development of the pattern and color tone in the dark, and the use must be limited. Have a big problem to say,
It has long been desired to develop a luminous ink that solves these problems and can be designed with a high degree of freedom.

[0006]

SUMMARY OF THE INVENTION The present inventors have been studying the above problem for many years as a person involved in printing, and as a result, the fluorescent pigment or the light-collecting
By adding a fluorescent dye, we found that various luminescent colors could be obtained while maintaining a constant brightness for a long time even in the dark, and as a result of further research and experiments aimed at practical use, we completed the present invention That is what led to it.

That is, a first aspect of the present invention is to provide a phosphorescent pigment which emits blue light or green light in darkness with a red fluorescent pigment or a red light condensing color which has a complementary color relationship with the luminescent color.
Add a required amount of fluorescent dye to emit reddish light
In the dark with exhibits were prepared phosphorescent material emits white light, a phosphorescent ink, characterized in that a mixture of the phosphorescent material in a transparent resin vehicle.

[0008] A second aspect of the present invention is that the light-emitting ink according to the first aspect of the present invention has a reddish color at the time of light.
A phosphorescent printed material emits white light in the dark with emit light.

[0009] The third invention is, on the printing surface of the phosphorescent printed materials of the second aspect, the symbol of the required color tone provided at the transparent colored resin exhibits a red light emission at the time of bright In addition, in the dark, the luminous printed material exhibits a color tone in which the emission color of the printing surface of the luminous printed material and the color tone of the symbol displayed by the transparent colored resin are combined.

The structure of the present invention will be described in more detail as follows.

In the present invention, as the luminous pigment, commercially available luminous pigments that emit blue light or green light in the dark can be used. In addition, as a fluorescent pigment, commercially available red
(Shinroihi Co., Ltd. FA203 (red): Product
Name) , pink (FA207 (pin
H): trade name) , orange red fluorescent pigment (Shinloich)
FA204 (orange) (trade name) manufactured by Co., Ltd. can be used. As a light-collecting fluorescent dye, a commercially available red light-collecting
Fluorescent dye (Lumogen F300 (red) manufactured by BASF):
Product name) can be used.

As the transparent resin vehicle, commercially available vinyl chloride, polyester, acrylic, urethane, and other necessary transparent resins applicable as printing inks can be used.

As the transparent colored resin, various kinds of commercially available printing inks can be used in addition to the above-mentioned transparent resin vehicle obtained by adding required dyes and pigments.

The phosphorescent material according to the present invention can naturally be used as a paint in addition to ink.

[0015]

BEST MODE FOR CARRYING OUT THE INVENTION

Embodiment 1: A vinyl chloride transparent ink (SG700, trade name, manufactured by Seiko Advance Co., Ltd.) as a transparent resin vehicle, and a luminous pigment that emits green light in the dark as a luminous pigment (CP05, manufactured by Chemitech KK): (Trade name) in a ratio of 1: 1 (weight ratio) to a luminous ink that emits green light in the dark when it is obtained, and as an additive color material, a pink fluorescent pigment (FA207 (pink) manufactured by Shinloich Co., Ltd.): Product name) to 0.
No. 6 in Table 1 by adding 6% by weight. A luminous ink having white light emission in the dark having the light emission characteristics shown in FIG. 8 was prepared.

[0017]

In general, when light strikes an object, in the case of a normal color, color light of a certain wavelength is selected and absorbed by the color of the surface of the object and dissipated as heat, and the remaining color light is transmitted and reflected and recognized as a color.

However, in the case of a fluorescent pigment or a light-collecting fluorescent dye, selection and absorption of color light of a certain wavelength occurs in the same manner as described above. Emit as light.

Therefore, when a desired color is obtained by adding a coloring material to the luminous pigment, the luminance decreases with a change in color with a normal dye or pigment, but the fluorescent pigment or the condensing fluorescent light is used. In the case of the present invention using a dye, the decrease in luminance is small and a required luminescent color with sufficient luminance and afterglow can be obtained.

The three primary colors of "light" are R (red) and G.
When each color light of (green) and B (blue violet) is combined, it becomes "white light". The three primary colors of R, G, B and "color" are C (cyan), M (magenta), and Y (yellow). , R and C, G and M, and B and Y are complementary colors (a color becomes white when two color lights are mixed).

Therefore, in the present invention, the respective luminescent colors of the luminous pigment that emits green light in the dark and the luminous pigment that emits blue light close to green light in the dark are captured as the three primary colors G of light. Since the required amounts of red, pink, and orange red fluorescent pigments or red light condensing fluorescent dyes are used as M of the three primary colors of complementary colors ,
Oite in the dark with exhibits reddish light emission it is possible to exhibit white light emission.

[0022]

【Example】

Example 1 In the same manner as in the first embodiment, a vinyl chloride-based transparent ink (manufactured by Seiko Advance Co., Ltd.) was used as the transparent resin vehicle.
G700: trade name) as a luminous pigment, a luminous pigment that emits green light in the dark (CP05 manufactured by Chemitech Co., Ltd.).
(Trade name) at a ratio of 1: 1 (weight ratio) to a luminous ink that emits green light in the dark when obtained, and as a coloring material, a pink fluorescent pigment (FA207 manufactured by Shinloich Co., Ltd.).
(Pink): The results of the luminous ink prepared by changing the amount of addition of (Pink) are shown in Table 1 7 and No. 7 The results are shown in FIG.

Example 2 The same luminous ink as in Example 1 was used as an additional colorant.
Red condensing fluorescent dye (Lumogen F300 manufactured by BASF)
(Red): trade name), red fluorescent pigment (FA203 (red), manufactured by Shinloich Co., Ltd.) and orange fluorescent pigment (FA204 (orange), manufactured by Shinloich Co.):
The results of the luminous inks prepared by changing the amount of (trade name) added are shown in Table 1. 1 to No. 1; 3, No. 4-No. 6
And No. 10 -No. The results are shown in FIG.

Example 3 As in the case of the second embodiment, a transparent resin vehicle made of a vinyl chloride-based transparent ink (manufactured by Seiko Advance Co., Ltd.)
G700: trade name) as a luminous pigment, a luminous pigment that emits blue light in the dark (CP10 manufactured by Chemitech Co., Ltd.)
(Trade name) in a ratio of 1: 1 (weight ratio) to a luminous ink that emits blue light in the dark when obtained, and a red fluorescent pigment (FA203 manufactured by Shinloich Co., Ltd.) as an additional colorant.
(Red): The results of the luminous inks prepared by changing the amount of (red) (trade name) are shown in Table 2 as No. 16 -No. 18 is shown.

Example 4 The same luminous ink as in Example 3 was used as an additional colorant.
Red condensing fluorescent dye (Lumogen F300 manufactured by BASF)
(Red): trade name), a pink fluorescent pigment (FA207 (pink): manufactured by Shinloich Co., Ltd.) and an orange fluorescent pigment (FA204 (orange) manufactured by Shinloich Co., Ltd.):
Table 2 shows the results of the luminous inks prepared by changing the addition amount of (trade name). 13- No. 15 and No. 19 ~
No. 24 .

The luminous characteristics shown in Tables 1 and 2 are as follows. Each of the luminous inks prepared in the manner described above shows a thickness of about 30 μm on a white base of a vinyl chloride tape (M3011: trade name, manufactured by Lintec Corporation). To make a color sample, and put this color sample at a position 2 m below the 40 W fluorescent lamp.
After leaving for a minute, the color sample was brought into a dark room, and the light emission luminance was measured with the naked eye after 3 minutes (dark adaptation took about 3 minutes), 30 minutes and 1 hour. .

[0028]

[Table 1]

[0029]

[Table 2]

From the results shown in Tables 1 and 2, it is clear that those printed with the luminous ink according to the present invention are red in the light state.
In the dark with exhibits system emission is seen to exhibit a visible white light emission from about 1 hour or more. Further, if the added amount of the color material is small, that we see that emits white light of a pale greenish or Awaaomi or Awaakami in the dark.

[0031]

[Comparative example]

A normal red pigment (Colophine Red 212A, trade name, manufactured by Dainippon Ink and Chemicals, Inc.) was added to the same luminous ink as in Example 1 and the same luminous ink as in Example 3, respectively, as an additive colorant. And a red dye (Zapon Red 471: trade name, manufactured by BASF Japan K.K.), a color sample was prepared by printing about 30 μm thick on a white base of the same vinyl chloride tape as above. Table 3 shows, as a comparative example, the results of the measurement of the light emission luminance in the dark in the sample under the same conditions as described above.

[0033]

[Table 3]

From the results shown in Table 3, it can be seen that those printed with an ink to which a normal red pigment or red dye is added as an added color material are almost invisible in the dark.

The luminous ink that emits white light in the dark according to the present invention may be directly printed on various printing materials as a printing ink. However, as shown in FIG. 1, the luminous ink that emits white light is used. 1 is printed as a base on the upper surface of a substrate 3 which is a substrate to be printed, and a pattern of a required color tone is printed on the upper surface with a transparent colored resin 2 so that the printing surface of the base with the luminous ink 1 is dark. Also acts as a backlight for as long as about one hour,
A luminous printed matter in which the color tone of the design by the transparent colored resin 2 is vividly expressed in the same color tone as in the light even in the dark can be obtained.

Although FIG. 1 shows the simplest configuration, a transparent resin may be provided between the luminous ink 1 serving as a base and the transparent colored resin 2.
Alternatively, a pattern in which a desired color tone is printed with a transparent colored resin on another transparent film may be superimposed on the upper surface of the printing with the luminous ink 1.

[0037]

Effect of the Invention] The present invention, because now the white light - emitting a non conventional obtained not green or blue can be easily obtained in the dark, enables a high degree of freedom designed by implementing the present invention The utility value in the advertising or decoration field is high.

Therefore, it can be said that the industrial applicability of the present invention is extremely large.

[Brief description of the drawings]

FIG. 1 is an enlarged side sectional view of an example of a luminous printed matter according to the present invention.

[Explanation of symbols]

 Reference Signs List 1 base material 2 luminous ink 3 transparent colored resin

──────────────────────────────────────────────────続 き Continuation of the front page (56) References JP-A-3-166269 (JP, A) JP-A-61-40382 (JP, A) JP-A-49-31985 (JP, A) JP-A 64-64 33287 (JP, A) JP-A-11-158420 (JP, A) Japanese Utility Model Application Sho 58-21185 (JP, U) (58) Fields investigated (Int. Cl. ⁷ , DB name) C09D 11/00-11 / 20 C09D 5/00-5/46 C09B 67/22 B41M 3/00-3/18

Claims (3)

(57) [Claims] 1. A required amount of a red fluorescent pigment or a red light condensing fluorescent dye having a complementary color relationship with the emission color is added to a luminous pigment that emits blue light or green light in the dark .
It emits reddish light at the time of light and at the time of darkness
Phosphorescent ink, characterized in that the light-storing material emits white light was prepared by mixing the phosphorescent material to the transparent resin vehicle. (2) printing with the luminous ink according to (1);
It emits reddish light in bright light and dark
And luminous printed matter that emits white light . To 3. A on the printing surface of the phosphorescent printed materials according to claim 2, wherein the transparent coloring of a resin required color pattern is provided, wherein the light storing in the dark with at the time of bright exhibits red light emitting A luminous printed matter that develops a color tone in which the luminescent color of the printing surface of the sexually printed matter and the color tone of the design displayed by the transparent colored resin are combined.