JPH10269745A - Recording medium accommodating cassette and cassette storage case and label seal - Google Patents

Abstract

PROBLEM TO BE SOLVED: To realize easier discrimination even at night by printing a colored luminous part which emits the red, green and blue lights to the predetermined area of the recording medium accommodating cassette, cassette storage case and label seal attached thereon. SOLUTION: A strip label 20 section is formed to the predetermined area on the surface of a tape cassette 1, a luminous area 30 is provided to a part of the label section 20 and characters and patterns of various colors through combination of red, green and blue are printed thereon. The luminous ink of each color used for printing on the luminous area 30 is an oxide including Ca and S for red, Sr and Al for green and Ca and Sr for blue. This luminous ink is added to the base ink in the rate of 10 to 20 wt.%. As the color expressing method, the additive color mixture is employed in which emission of luminous inks of three colors of red, green and blue is combined. In this case, optical intensity is adjusted by changing the areas of mesh point of three colors to express the color and contract. Therefore, any kind of expression of any kind of color can be visualized even in the dark area to easily discriminate the characters and patterns even at night.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording medium storage cassette such as a tape cassette, a cassette storage case for storing the recording medium storage cassette, and affixed to the recording medium storage cassette and the cassette storage case. Related label seals.

[0002]

2. Description of the Related Art Recording medium storage cassettes are currently widely used for various purposes, and in particular, there are many car stereo users such as so-called audio compact cassettes and mini discs.

Considering the use of these recording medium storage cassettes in a vehicle, when a user searches for a desired cassette at night, if a character such as a title written on a label part is dark and cannot be seen well, the user is likely to use the outside. It is necessary to illuminate the lights and turn on the interior lights, but it goes without saying that such an act is very dangerous while driving a car.

In view of the above, a cassette having luminous properties has been proposed (for example, Japanese Patent Application No. 6-207724 filed by the present applicant). That is, this cassette
The label is printed with luminous ink, or a label sticker coated with luminous ink is attached.The luminous ink shines in dark places, so that characters written on the label or label can be read. it can. At present, luminous ink that can emit light for a long time has been developed,
Products that take advantage of the characteristics are increasing, and a great effect can be expected by applying this to a cassette as described above.

[0005]

However, in the conventional cassette as described above, when searching for a cassette in a dark place, the characters written on the label must be read one by one. This is disadvantageous, especially for handling while driving a car, since it cannot be identified. The present invention has been made to solve such a problem.

[0006]

According to the present invention, there is provided a cassette for storing a recording medium.
A color luminous portion composed of minute dots that emit red, green, and blue light is provided at a predetermined portion by printing. Also in a case for storing a recording medium storage cassette, a color luminous portion composed of minute points emitting red, green, and blue light is provided at a predetermined portion by printing. Further, also in a label sticker attached to a recording medium storage cassette or a cassette storage case, a color luminous portion composed of minute dots emitting red, green, and blue light is provided by printing. In the present invention as described above, the emission of the three primary colors of red, green, and blue enables expression of any color that can be visually recognized even in a dark place. Therefore, when searching for a cassette in a dark place, the target cassette can be easily identified at a glance.

[0007]

Embodiments of the present invention will be described below with reference to the drawings. FIG. 1 shows a tape cassette (compact audio cassette) as an example of a recording medium storage cassette. The tape cassette 1 is composed of a pair of upper and lower cassette shells 1a and 1 made of plastic, for example, HIPS (high impact polystyrene).
b and a pair of left and right hubs 2a, 2b, around which a magnetic tape as a recording medium is wound.
2b is rotatably stored. Reference numeral 3 denotes a front opening for exposing the magnetic tape T derived from the hub, 4a and 4b denote hub drive shaft insertion holes, 5a and 5b denote capstan insertion holes, and 6a and 6b denote positioning reference holes.

A belt-shaped label portion 20 is formed at a predetermined portion on the surface of the tape cassette 1, that is, at a position behind the hub drive shaft insertion hole in the upper surface portion (upper cassette shell 1a) of the tape cassette 1 in this example. I have. Although not shown in the figure, a similar label portion is also formed on the lower surface portion (lower cassette shell 1b) of the tape cassette 1.

The label portion 20 is formed by solid printing a so-called writable ink to which calcium carbonate or the like is added on a cassette shell, and characters such as a title can be freely written on the label portion.

In the label section 20, a night light section 30 is provided in a part thereof, and this part emits light in a dark place (at night).

FIG. 2 shows a cassette storage case for storing the tape cassette 1. The cassette storage case 10 includes a case main body 11 made of plastic, for example, PS (polystyrene), and a lid 12. The lid 12 is pivotally opened and closed with respect to the case main body 11 via a shaft fulcrum 13. It is wearing connection. When the tape cassette 1 is not used, the tape cassette 1 is stored in a housing 11a of the case body 11 with the lid 12 closed, so that the magnetic tape exposed at the front opening of the tape cassette 1 is opened. The tape is protected from dust. Reference numeral 14 denotes an index card (a card for writing titles, music pieces, etc.) inserted into the cassette storage case 10 together with the tape cassette 1.

A label 20 similar to the tape cassette 1 shown in FIG. 1 is formed on a predetermined portion of the surface of the cassette storage case 10, that is, on the upper surface of the lid 12 in this embodiment. A luminous part 30 that emits light in a dark place is provided in a part of the part 20.

FIGS. 3 and 4 show the tape cassette 1 described above.
Also, a label sticker attached to the cassette storage case 10 is shown. The label seal 21 is formed of paper or a resin plate, and characters such as a title can be freely written thereon. This label sticker 2
The back side of 1 is an adhesive surface, and is attached to a predetermined portion of the tape cassette 1 and the cassette storage case 10 on the adhesive surface.

In the label seal 21 as well,
Tape cassette 1 and cassette storage case 1 described above.
As in the case of the label part 20 of 0, a night light part 30 is provided in a part, and this part emits light in a dark place.

The details of the above-exemplified tape cassette 1, the cassette storage case 10, and the luminous portion 30 in the label seal 21 will be described.
Are printed on characters and pictures (in this example, letters "sideA" and pictures of mountains) having various colors by combinations of the three primary colors of light, that is, red, green and blue.

That is, the luminous portion 30 uses luminous ink which emits red (R), green (G), and blue (B), respectively, and prints them as countless minute dots (hereinafter referred to as halftone dots).
Characters and patterns of various colors are expressed by the combination of the three primary colors.

The luminous ink of each color used for printing of the luminous portion 30 is a commercially available luminous ink, and the luminous pigment which is a main component thereof is Ca or S for red, Sr or Al for green, and Ca or S for blue. It is an oxide containing Sr and the like.
0 to 20% by weight is added to the base ink.

The method of printing the luminous ink is as follows.
Existing printing methods, such as flexo, gravure, offset, and screen printing, can be adequately used.

A screen printing method will be described as an example of the printing method. As a plate used in this screen printing, a general plate obtained by forming a pattern with a photoresist on a screen made of a fabric such as nylon is used. In this case, since the particles of the luminous pigment in the luminous ink are several to several tens [mu] m, the number of lines of the screen is suitably 100 to 200 lines per inch for printing the luminous pigment. In printing, the luminous ink placed on the screen plate is extruded from a gap in the screen by being scratched with a squeegee and transferred to a printing portion.

This printing is performed by printing three colors of red, green and blue once each. In this printing, when printing the next color, it is desirable that the previous color be dried so that the turbidity between the inks does not occur. In recent years, UV (ultraviolet) curable inks have become more common in addition to solvent type inks, so each color is printed with luminous ink using this UV curable ink, and a UV drying oven is used during the printing process of each color. Is provided, the ink can be completely dried.

Next, a method of expressing colors by the three primary colors of light (red, green, and blue) will be described. This is applied to color expression in CRTs such as television receivers, and combines colors of light of three wavelengths, red (R), green (G), and blue (B), with various intensities to change colors and shades. When three colors are added 100% at a time, the color of the light becomes “white”, which is generally called additive color mixing. For example, orange is C
It is represented by light combined at an intensity ratio of red = 255, green = 102, blue = 26 on RT.

On the other hand, the color representation method of general printed matter is called subtractive color mixture, and cyan (C), magenta (M), and yellow (Y).
Is a method of printing by superimposing halftone dots for each color. In the subtractive color mixture, the color shading is represented by the size of a halftone dot, that is, a portion printed with a small halftone dot becomes lighter, and a darker portion is formed with a large halftone dot. When all three colors of cyan, magenta, and yellow are overlapped, the color becomes "black".

In the present invention, the characteristics of both the additive color mixture and the subtractive color mixture are utilized, and the color expression method is the additive color mixture in which the luminous inks of three colors of red, green, and blue are combined. By changing the area of the three-color halftone dots in various ways, the intensity of light is adjusted to express colors and shades. That is,
The color that looks macro is microscopically composed of small dots of several to several hundreds of micrometers that emit red, green, and blue light. The necessary light intensity adjustment must be based on the size of the dot area. It is done in.

6 to 8 show examples of halftone dot patterns of each color. That is, FIG. 6 shows red dots, FIG. 7 shows green dots, and FIG. 8 shows blue dots, respectively. As is apparent from these drawings, the dots of each color are regularly arranged at different angles.
In this case, any color may be used. However, as a general pattern in the printing industry, in this example, a halftone dot pattern in which red is arranged at an angle of 75 °, green is arranged at an angle of 90 °, and blue is arranged at an angle of 105 °. Is shown.

The size or area of the halftone dot of each color is large when the color appears strongly, and conversely becomes small when the color is small (it may not exist at all). In this example, red is the strongest and blue is the least.

For example, when printing is performed in the order of red, green, and blue, three-color halftone dots are combined as shown in FIG. 9, and various colors corresponding to the combination are expressed. in this case,
Part of each color may be overlapped and printed, and the overlapped portion appears as a color other than the three colors by the combination of the three primary colors of light.

The reason why the halftone dots of each color are arranged at different angles is that when all the halftone dots of each color are arranged at the same angle, an interference fringe called a moire pattern appears when the halftone dots of each color are printed overlapping. That's why. When halftone dots of each color are arranged at different angles and printed correctly as shown in this example, a turtle pattern called a rosette pattern is formed and printed finely.

The luminous part 30 printed as described above is
The emission of the three primary colors of red, green, and blue makes it possible to express any color that can be visually recognized even in a dark place. Therefore, by providing the luminous portion 30 on the tape cassette 1 or the cassette storage case 10 as shown in FIGS. 1 to 4, or on the label seal 21 attached to the tape cassette 1 or the cassette storage case 10, When searching for a tape cassette in a dark place, the target tape cassette can be easily identified at a glance, and handling becomes easy even while driving a car.

The luminous part 30 can be formed not only by simply glowing color printing, but also by producing a positive film by dividing a color photograph into red, green, and blue elements and printing the same. In addition, printing can be performed at low cost.

In the above embodiment, as an example of the recording medium storage cassette and the cassette storage case,
Although the audio compact cassette and its storage case are shown, the present invention relates to other tape cassettes (video tape cassettes, DAT cassettes, etc.) and disk cassettes (3.5 inch micro floppy disk,
It can be widely applied to mini-discs, etc.) and storage cases thereof.

[0031]

As is apparent from the above description, the recording medium storage cassette, the cassette storage case, and the label seal according to the present invention have a color luminous portion composed of minute points that emit red, green, and blue light. Therefore, the expression of all colors that can be visually recognized even in a dark place can be realized by the principle of the three primary colors of light. Therefore, when searching for a cassette in a dark place,
The target cassette can be easily identified at a glance, and handling is easy even during driving of the automobile. Also, since the luminous part can realize a photographic style design that emits light,
A recording medium storage cassette and a cassette storage case that can enjoy photographic beauty even in a dark place can be easily and inexpensively provided.

[Brief description of the drawings]

FIG. 1 is a perspective view of a tape cassette having a luminous portion.

FIG. 2 is a perspective view of a cassette storage case having a luminous portion.

FIG. 3 is a perspective view of a tape cassette to which a label seal having a luminous portion is attached.

FIG. 4 is a perspective view of the cassette storage case.

FIG. 5 is a plan view of a label portion (label seal).

FIG. 6 is an enlarged view of a halftone dot constituting the night light part, which is a red (R) halftone dot pattern.

FIG. 7 shows a green (G) halftone dot pattern.

FIG. 8 is a dot pattern of blue (B).

FIG. 9 is an enlarged view of a luminous portion printed by combining three-color halftone dots.

[Explanation of symbols]

1 tape cassette (recording medium storage cassette), 10
ケ ー ス Cassette storage case, 21 ‥‥ Label seal, 3
0 ‥‥ night light

Claims (3)

[Claims] 1. A cassette for storing a recording medium,
A recording medium storage cassette characterized in that a color luminous portion composed of minute dots emitting red, green, and blue light is provided at a predetermined portion by printing. 2. A cassette storage for storing a recording medium storage cassette, wherein a color luminous portion composed of minute dots emitting red, green, and blue light is provided by printing at a predetermined portion thereof. Case. 3. A label sticker attached to a recording medium storage cassette or a cassette storage case,
A label seal characterized by providing a color luminous portion formed by printing with minute dots emitting red, green, and blue light.