JP2782125B2 - Multicolor ink ribbon - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multicolor ink ribbon for fabric used in impact printers and the like.

[0002]

2. Description of the Related Art Conventional multi-color ink ribbons have different inks applied along a longitudinal direction on a fabric-like base fabric made of silk, cotton, synthetic fiber, or the like. When a dye-based ink is used, the different color inks that contact each other at the boundary line of each ink area often penetrate into each other or one of them by capillary action or the like, and are mixed. In addition, those provided with a separation band so that ink does not penetrate by applying a resin or applying a resin have been widely used.

[0003]

However, the multi-color ink ribbon provided with these separation bands can prevent the mixing of different colors of ink, but the ink ribbon runs slightly in a printer because of no ink on the separation band. In that case, the impact head may print on the separation band, and there is a drawback that characters in that portion are missing.

The present invention solves these drawbacks, and in a multi-color ink ribbon provided with a separation band, it is possible to prevent color mixing of different inks, and to cause a slight meandering of the ink ribbon in a printer to reduce the impact head. It is an object of the present invention to provide a multicolor ink ribbon which is free from printing defects even when printing is performed on a separation band.

[0005]

According to the present invention, in order to solve the above-mentioned problems, a multicolor ink ribbon is provided in a central portion of a fabric-like base cloth with a separation band for preventing color mixing of ink in a longitudinal direction. In a multicolor ink ribbon in which a plurality of areas for applying inks of different colors are formed in a longitudinal direction, a pigment-based ink of one color is applied on at least one area and a separator adjacent thereto, and the other area is applied. A dye-based ink or a dye-pigment-based ink of another color is applied except for a separation band.

[0006]

According to the present invention, a dye-based ink or a pigment-based ink of one color (for example, black) has a high fluidity, but does not mix with a different color ink in an adjacent area because the separation ink hinders its penetration. . Further, since pigment-based inks of other colors (for example, red) have extremely low fluidity, they do not mix even if they come into contact with ink in other areas. Further, since the pigment-based ink is present on the separation band, even if the ink ribbon is slightly meandered by the printer and the impact head prints on the separation band, there is no possibility of missing print.

[0007] The pigment-based ink in the present invention is, for example, an ink having a viscosity of 5000 CP or more and a large thixotropy. The dye-based ink or the pigment-based ink is, for example, one having a viscosity of 5000 CP or less, and refers to an ink having a small thixotropy.

[0008]

Next, the present invention will be described in detail with reference to the drawings by showing examples along with comparative examples, but the present invention is not limited thereto.

(Example 1) Resin was applied in the longitudinal direction with a width of 0.8 mm to the center of a 13 mm wide 6.6 nylon fabric ribbon base fabric 1 to form a separation band 2. A red pigment ink 3 having the following composition is applied to one area partitioned by the separation zone 2, and a black dye ink 4 having the following composition is applied to the other area except for the separation zone 2. The above-mentioned red pigment ink 3 was also applied thereon to obtain a multicolor ink ribbon.

[0010] Pigment ink pigment (Les - Kireddo C) were blended 25 parts by weight fatty acid esters 50 〃 surfactant 25 〃 above ingredients, three roller - obtain a dispersed Pigments ink pigments Le.

Dye ink Dye (nigrosine) 20 parts by weight Fatty acid 50 脂肪酸 Fatty acid ester 15 〃 Surfactant 15 〃 The above-mentioned raw materials were blended and dissolved in a dissolving pot to obtain a dye ink.

(Comparative Example 1) On the same base fabric 1 as in Example 1,
The same pigment ink (red) 3 and dye ink (black) 4 as in Example 1 were applied to both areas separated by the separation zone 2. However, a multicolor ink ribbon was obtained on which no pigment ink (red) 3 or dye ink (black) 4 was applied.

The multicolor ink ribbons produced in the above Examples and Comparative Examples were applied to an NEC dot printer (PC-PR).
201-CL). In particular, when the ink ribbon was slightly meandered by the printer and the impact head was consciously printed on the separation band, the color mixture of red and black in the ink ribbon was almost zero in both the examples and the comparative examples. I couldn't see it. In addition, when comparing the printed ones, the one using the ink ribbon of the example did not show any missing chip, but the one using the ink ribbon of the comparative example showed the missing one. .

[0014]

According to the ink ribbon of the present invention having the above construction, the mixing of different inks can be prevented by using a multi-color ink ribbon provided with a separation band, and the running of the ink ribbon in a printer is slightly meandered. Thus, even if the impact head prints on the separation band, a multicolor ink ribbon free of printing defects can be obtained.

[Brief description of the drawings]

FIG. 1 is a partially cutaway plan view showing an embodiment of the present invention.

FIG. 2 is a sectional view taken along line AA of FIG.

FIG. 3 is a partially broken plan view showing a comparative example.

FIG. 4 is a partially broken plan view showing a production procedure of the present invention. 0

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Base cloth 2 Separation zone 3 Pigment ink 4 Dye ink

Claims (1)

(57) [Claims] 1. A multi-color ink in which a separation zone for preventing color mixing of ink is provided in a longitudinal direction at a central portion of a fabric-like base cloth, and a plurality of areas for applying inks of different colors are formed in the longitudinal direction. In the ribbon, one color pigment-based ink was applied on at least one area and a separator adjacent thereto, and the other area was coated with another color dye-based or dye-based ink excluding the separator. A multicolor ink ribbon characterized by the following.