JPS6085994A - Thermal transfer ink film - Google Patents

Abstract

PURPOSE:To greatly reduce the consumption of a thermal transfer ink film, by a method wherein the first layer consisting of a heat-fusible or heat-sublimable white ink for correcting a misprint is provided on an ink film base, and the second layer consisting of a heat-fusible or heat-sublimable ink of a hue different from that of the first layer is provided thereon. CONSTITUTION:The correcting white ink 16 is provided as the first layer 15b, and Y, M and C inks are applied thereto to provide the second layer 15c. To print in yellow, a detection means 20Y of the second layer 15c of the thermal transfer ink film 15 is detected by a color sensor 21, and thermal energy for melting the yellow ink 17 is supplied to a heating resistor element 24a of a thermal head 24, thereby printing. To correct a misprint, at the position of an arbitrary color, the correcting white ink 16 of the first layer 15b is placed on the yellow ink 17, and thermal energy for melting the white ink 16 is supplied to the element 24a, whereby a white hue is obtained, and the misprint can be corrected.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application The present invention relates to a thermal transfer device used in a printing device that generates heat from a heating resistor element and forms desired characters or figures on transfer paper using thermal melting or thermal sublimation. This relates to an ink film for use in other applications.

Conventional configuration and its problems Recently, in response to the multi-functionalization of handheld computers (11 senosink function, multicolor printing function, etc.)::jI I'
A small color display appears and the printing device 17
1, the demand for multicolor printing has increased. Against this background, four types of printing devices capable of printing in multiple colors have been realized, and we will be happy to talk about one of them, a thermal transfer printer.

Fig. 1 is a principle diagram showing lj;

In FIG. 1, 1 is a thermal head having a plurality of resistance elements 1ai, 2 is transfer paper (plain paper) wound around a blade 3, and 4 is a band-shaped thermal transfer ink film, which is made of polyester. : 5's film-like profiteering 4a and the said J Hu A4a' second coated hot melt 1'l (!l
! It consists of a sexual ink 4b and 2), as shown in 1.
(
Resistance element 1al/? - When a heavy pressure is applied, the resistive element 1a is generated and a belt-shaped ρ) transfer ink film 4 is melted and the cold ink 4b is melted and rolled in waves. This is the hearth axis ′′ (ρ!
! It is based on the principle of 'fi enemy).

The case of diagnosing printed characters or figures 5 based on the above principle will be explained based on one drawing.

FIGS. 2a to 2d are schematic diagrams of main parts showing a conventional printing device and its correction mechanism.

In FIG. 2a, 5 is a band-shaped transfer ink film, yellow ink 6, magenta ink 7, cyan ink 8. The correction white ink 9 (hereinafter referred to as white ink) (respectively referred to as Y, M, C, and W in the drawings) has been applied sequentially in a stepwise manner in the longitudinal direction. Furthermore, a detection means 10 for each color, such as a bar code, is provided at the boundary between each color. It is an IQj thermal head and prints on a transfer paper 13 wound around a platen 12 via a thermal transfer ink film 6. 14, detection means 1o and 71
This is a color detection sensor that detects different colors.

The operation of the conventional example V configured as described above will be explained below. First, as shown in FIG. 2, when printing in yellow, for example, the thermal transfer ink film 5 is fed in the direction of the arrow α at a point where the detection means 10Y at the leading edge of the yellow ink 6 is read by the color detection sensor 14. When the signal from the color detection sensor 14 is identified by a microcomputer or the like as yellow ink 6, a voltage is applied across the heating resistor element 11 of the thermal spatula 1110, and the thermal head 11 is scanned in the direction of the arrow β, and the required ink is The yellow ink 6 is melted and transferred onto the transfer paper 13 to print. After this, if you find that the printed color, characters, figures, etc. are not what you want, and you want to correct this, use the same method as above to detect the white ink 9 as shown in Figure 2 OF. The correction is completed by copying the yellow ink 6 that has already been printed on top of it once again to give it a white hue, and as shown in FIG. It is sufficient to print all characters and figures in a cheap color such as magenta ink T.

However, the above tf + 7 formation, Isao 1iz <
The photographic ink film 5 has a longitudinal direction V and a first stage sloppy V.
Since it is coated with C, if there are few corrections, use white ink 9.
0 portion is wasted, the consumption of the thermal transfer ink film 6 increases, the printing cost increases, placing a large cost burden on the consumer, and the printing speed decreases because the intermediate colors have to be skipped to detect the white ink 9. It had the disadvantage of inviting people. As shown in FIG. 3, when black ink (denoted as B in the drawing and white correction ink) was applied to the thermal transfer ink film in a stepwise manner, the consumption of the thermal transfer ink film further increased.

OBJECT OF THE INVENTION The present invention solves the above-mentioned conventional drawbacks, and has a simple structure that greatly reduces the consumption of thermal transfer quick film containing white ink for correction, prevents a decrease in printing speed, and facilitates printing. The object of the present invention is to provide an ink film for thermal transfer that can be corrected.

Structure of the Invention The present invention comprises a first layer in which a white heat-melting or heat-sublimable ink for printing correction is formed on an ink film base layer, and a heat-melting or heat-sublimating ink having a different hue from the first layer on the first layer. Using a thermal transfer ink film having a second layer formed with a heat sublimation ink, thermal energy is applied to the heat transfer ink film to heat-melt it or make it turn a hot blue color, and to make the print on the transfer paper into a shape 5. Control is performed in two stages by adjusting the pulse width of the voltage applied to the heating resistive element of the head, and the first layer or the second layer is selectively thermally melted or thermally embossed to print or print on the transfer paper. It is something that can be corrected.

DESCRIPTION OF EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings. FIGS. 4a and 4b are sectional views of essential parts showing an embodiment of the present invention. In Figures 4a and 4b, 15 is an ink film for thermal transfer, and 152L is a film-like film made of polyester or the like.
A white correction ink 16 (indicated by W in the drawing) is applied thereon as a first layer 16b. Furthermore, the first layer 16
Yellow ink 17. on b. magenta ink 1B,
A second layer 150 is formed in which cyan ink 19 (indicated as YoMl in the drawing) is applied sequentially in a stepwise manner in the longitudinal direction. Here, as shown in FIG. 6, the thermal melting temperature T of the first layer 15b is the thermal melting temperature T2 of the second layer 150 and T +
) The ink characteristics satisfy the relational expression T2. 2o is a detection means for detecting each color, and 21
is a color detection sensor that detects color corresponding to the detection means 2o. This is a transfer paper wound around a 22 platen 23. 24 is a thermal head that heats a plurality of heat generating resistive elements 24&.

The operation of this embodiment configured as above will be described below. First, for example, general printing and 17
When you want to print in yellow color, when the detection means 20Y at the beginning of the yellow ink 17 of the second layer 16c of the thermal transfer ink film 16 detects that the yellow ink 17 is detected by the color detection sensor 21, it is transferred to the thermal transfer ink. 2
When thermal energy for melting the yellow ink 17 is supplied to the heating resistive element 242L of No. 4 by adjusting the applied pulse width, printing is performed as shown in FIG. 4 aVc. After this, if you find that the printed color or character 8 figure is not what you want, and you want to correct it, place the first layer of the thermal transfer ink film 16 at any color position as shown in Figure 4. The white ink 16 for correction shown in 16b is placed on top of the yellow ink 1, and the heat energy for melting is transferred to the thermal. Therefore, since the correction white ink 16 can be melted at any position, the amount of consumption of the thermal transfer ink film 15 can be greatly reduced.In particular, as shown in FIGS. It is clear that the consumption amount is significantly reduced when printing black ink (black ink is denoted as B).It is still possible to not only correct but also print white characters as shown in Figure 7. In FIG. 7, a boundary layer 15(i) is provided between the first layer 15b(w) and the second layer 16c(B), thereby ensuring that the first layer 15b is peeled off.

Effects of the Invention As described above, according to this embodiment, a multilayer thermal transfer ink film is used, in which a white correction ink is formed in the first layer and each color ink is applied on the first layer, and the thermal energy of the thermal head is This is because printing and correction can be easily performed by controlling the .

It is possible to provide a thermal transfer ink film for a printing device that can significantly reduce the amount of consumption of a thermal transfer ink film containing correction white ink and prevent a decrease in printing speed, and its practical effects are particularly high in the case of monochromatic black printing. There is something called a dog.

[Brief explanation of the drawing]

Fig. 1 is a diagram of the principle of thermal transfer, Figs. 2 a to d are schematic diagrams of main parts showing a conventional printing device and its corrective operation, Fig. 3 is a perspective view of main parts showing another conventional example, and Fig. 4 a . FIG. 5 is a temperature characteristic diagram of the same embodiment, and FIGS. 6 a and b are views of the second embodiment of the present invention. FIG. 7 is a cross-sectional view of main parts showing a third embodiment of the present invention. 1.11.24...Thermal head, 12L. 111! L, 24 &...Heating resistance element, 2, 13
．． 22...Transfer paper, 3,12.23...
Platen, 4°6.16...Ink film for thermal transfer, 41L, 151! L... profiteering, 4b river...
Heat-melting ink, 16b, first layer of thermal transfer ink film, 16cm...second layer 1 6.17...curved yellow ink, 7.18...magenta ink, 8.19 ...Cyan ink, 9.16...
・・White ink for correction, 10, 2Q・・Detection means,
14.21...Color detection sensor. Name of agent: Patent attorney Takuo Nakao Haga 1st person
1 Figure J 扼3Figure 3 Figure 2? θ T2Tt ゆ屓T Figure 6 Figure 7 Supplement to Procedures Display of the Case Showa Sl? Year! I6゛Application No. 9, 6.3/2 Name of the invention Ink film for thermal transfer 3 Person making the amendment 4 Agent 571 6. Contents of the amendment (1) Lines 12 to 15 on page 8 of the specification Delete "In addition, I am using...". (2) On page 9, lines 14 and 15, "Fig. 7 is..." was replaced with "Fig. 7 is another usage example of the thermal transfer ink film of the second embodiment shown in Fig. 6. This is a sectional view of the main parts showing the following. (3) Figure 7 of the drawing will be corrected as shown in the attached sheet.

Claims (2)

[Claims] (1) A first film having an interfiltration layer and a heat-melting or extrathermal ink for printing correction formed on the interfill layer.
1. An ink film for medal transfer, comprising: a second layer having a heat-melting or heat-setting ink having a different hue from that of the first layer formed on the first layer. (2) Claim 1 characterized in that the first layer and the second layer have a temperature difference in thermal melting and ρ1yj temperature.
Ink film for heat transfer by Xiangjisen.