JP2888115B2 - Melt type thermal transfer ribbon for fabric dyeing - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to textile printing. More particularly, the present invention relates to a fusion type thermal transfer ribbon containing a sublimation type dye used for thermal transfer printing on fabric.

[0002]

2. Description of the Related Art The inventor of the present invention has proposed that a temporary image is heat-transfer-printed on a cloth using a fusion-type thermal transfer ribbon containing a sublimation dye, and then the temporary image is dyed by dry heating. Invented a method.

[0003] The problem here is the surface smoothness of the fabric. Since the surface smoothness of the fabric is very inferior to that of paper or the like, even a thermal transfer printing cannot provide a practical thermal transfer print image with too many recesses.

[0004] Therefore, a technical idea of improving the fabric and imparting surface smoothness, a technical idea of improving the ink transfer of the thermal transfer ribbon, and the like have been proposed. However, this method has a problem that it can be applied only to a specific cloth, and the technical idea cannot be applied to many cloths.

[0005] In order to solve such a problem, it is conceivable to improve the thermal transfer ribbon so that an image having excellent sharpness can be printed even on a fabric having many irregularities.

Japanese Patent Application Laid-Open No. Hei 2-20387 discloses a technique of an expandable fusion heat transfer ribbon which solves or improves such a problem. This is based on the idea that a vaporizable solvent or a sublimable substance is mixed into an ink layer composed of a pigment and a wax, and the substance is vaporized during thermal transfer, and ink flows along irregularities of the recording paper.

However, Japanese Patent Application Laid-Open No. Hei 2-20387 discloses
In the publication, there is only the concept of pigment, it can not be used in the technical concept of the dyeing proposed by the present inventors, and, furthermore, the portion of the base film heated by the thermal head,
It became soft, and there was a possibility that a vaporizable solvent or a sublimable substance would escape therefrom.

[0008]

DISCLOSURE OF THE INVENTION The present invention solves or significantly improves the above-mentioned problems, and is excellent in sharpness to any fabric using at least a fiber dyeable with a sublimation dye. The purpose of the present invention is to provide a heat-transfer print image and a dyed fabric excellent in sharpness.

[0009]

According to the present invention, there is provided a fusion type thermal transfer ribbon having the following essence.

That is, the melt-type thermal transfer ribbon for dyeing a fabric of the present invention is a sublimation-type dye-containing melt-type thermal transfer ribbon,
The ink layer is mainly composed of a base film layer and an ink layer. The ink layer is mainly composed of a sublimation dye, a vehicle made of wax and / or a synthetic resin, and 50 ° C. ≦ melting point <boiling point ≦ 20.
The base film layer has a heat-resistant layer on the side opposite to the ink layer, or is mainly composed of a base film layer and a substance having a sublimation point of 50 ° C. or higher that satisfies the condition of 0 ° C. An ink layer and an intermediate layer interposed therebetween; the ink layer is mainly composed of a vehicle composed of a sublimation dye and wax and / or a synthetic resin; and the intermediate layer is mainly composed of the above vehicle and 50 ° C ≦ 50 ° C.
The base film layer has a heat-resistant layer on the surface opposite to the ink layer, or a substance satisfying the condition of melting point <boiling point ≦ 200 ° C. or a substance having a sublimation point of 50 ° C. or more; or , Mainly comprising a base film layer and an ink layer, wherein the ink layer is mainly composed of a vehicle comprising a sublimation dye and wax and / or a synthetic resin, and the base film layer has a temperature of 50 ° C ≦ melting point <boiling point ≦ 200.
Characterized in that it has a three-layer structure in which a substance satisfying the condition of ° C or a substance having a sublimation point of 50 ° C or higher is laminated, and further has a heat-resistant layer on the surface of the base film layer opposite to the ink layer. It is.

[0011]

The following is a more detailed description.

FIGS. 1 to 3 show schematic views of cross sections of three types of sublimation type dye-containing fusion type thermal transfer ribbons of the present invention. In the figure, 1 is a sublimation dye, vehicle and 50
Ink layer made of a substance satisfying the condition of ° C ≦ melting point <boiling point ≦ 200 ° C or a substance having a sublimation point of 50 ° C or more, 2 and 6
Is a base film, 3, 7 and 12 are heat resistant layers, 4 and 8
Is an ink layer composed of a sublimation type dye and a vehicle; 5 is an intermediate layer composed of a vehicle and a substance satisfying a condition of 50 ° C. ≦ melting point <boiling point ≦ 200 ° C. or a substance having a sublimation point of 50 ° C. or more;
Is a film on the ink side of the base film layer, and 10 is 50
A substance satisfying the condition of ° C ≦ melting point <boiling point ≦ 200 ° C. or a substance having a sublimation point of 50 ° C. or more, 11 is a film on the heat-resistant layer side of the base film layer. Note that FIGS. 1 to 3 conceptually illustrate only the stacking order, and thus the thickness of each part is not the same.

The sublimation dye-containing fusion type thermal transfer ribbon shown in FIGS. 1 to 3 is used in a general thermal transfer printer. When performing thermal transfer printing on a fabric, at a location heated from a thermal head, 50 ° C. ≦ melting point <boiling point ≦ 20
A substance satisfying the condition of 0 ° C. or a substance having a sublimation point of 50 ° C. or more is vaporized, and the ink layers 1, 4, and 8 expand along irregularities on the surface of the printed fabric. That is, the thermal transfer printing is surely performed even on the concave portion of the fabric which has not been thermally transferred in the past, and the image dyed by dry heating after the thermal transfer printing also has excellent sharpness.

The fabric referred to in the present invention includes natural fibers such as silk and cotton, synthetic fibers such as polyester, polyamide, polyacrylonitrile and urethane, and regenerated and semi-synthetic fibers such as cellulose and protein. Woven fabric,
Although it refers to knitting, nonwoven fabric, etc., the fabric 1 in FIG.
Among them, synthetic fibers such as polyester fibers and polyamide fibers, for example, polyethylene terephthalate fibers, which are synthetic fibers, are preferably used. Further, a cloth mainly composed of fibers having a single fiber fineness of 0.0001 to 1 denier is more preferable because an image having particularly excellent sharpness can be obtained.

The sublimation dyes used in the present invention include:
Such as a disperse dye or a basic dye, which is used to dye the fibers of the fabric by heating corresponding to the fabric, such as a disperse dye or a basic dye, is not particularly limited, but is preferably sublimable and has a sublimation temperature of 140 to 300 ° C, Those having a temperature of 180 to 280 ° C are more preferable, and those having a temperature of 200 to 250 ° C are further preferable. In short, it is preferable to use a dye having high sublimation fastness. Further, it is preferable to use a dye suitable for the type of the cloth, and a disperse dye is preferably used if the fibers constituting the cloth are polyester fibers. For example, CIDi
Dyes of sperse Blue 330 and CI Disperse Blue 207 are examples of preferably used dyes. However, they may be used without being limited to these. The sublimation temperature in the present invention refers to a temperature at which the vapor pressure (sublimation pressure) of a sublimable dye is equal to the external pressure.

The term "vehicle" as used in the present invention refers to a resin as used in a usual fusion type thermal transfer ribbon. Examples thereof include waxes such as carbanana wax and polyethylene wax, ethylene-vinyl acetate copolymer, acrylic resin, and the like, but are not limited thereto, and a resin may be appropriately selected for the purpose of joining.

In the present invention, 50 ° C. ≦ melting point <boiling point ≦
The substance satisfying the condition of 200 ° C. or the substance having a sublimation point of 50 ° C. or higher is not particularly limited, and any substance may be used as long as the condition is satisfied. There are a number of substances that satisfy this condition, each of which can be enumerated in many cases, but only a few examples are 3-methylcyclohexanone-4-carboxylic acid,
-Acetyl-3-methylpyrazole, 1,2,3-heptanetriol and the like. However, it is preferable that the substance does not contain halogen such as chlorine.

Although this substance may be used alone,
It is preferable to use it enclosed in a microcapsule.
In this case, the diameter of the microcapsule is preferably 2 μm or less, and the shell of the microcapsule is more preferably ruptured only when heated at a temperature higher than the boiling point of the substance due to a rise in the vaporized pressure of the substance. It is preferred.

The base film is not particularly limited, but a film such as a polyester-based resin or a polyamide-based resin used for ordinary thermal transfer ribbons can be used.

As the heat-resistant layer, an acrylic resin, a polyester resin, an epoxy resin, or the like is used. However, a layer whose hardness does not decrease so much upon heating and a layer having a good thermal head sliding property are preferable.

The thickness of each layer is preferably designed appropriately in accordance with the thermal transferability.
Those having an ink layer in the range of 3 to 10 μm in the range of μm are preferred.

In the sublimation dye-containing thermal transfer ribbon having the structure shown in FIG. 3, the thickness of the film 9 on the ink side of the base film layer is preferably 0.01 to 1 μm.

[0023]

The present invention will be described in more detail with reference to the following examples. It should be noted that the validity and scope of the rights of the present invention are not limited or limited thereby.

EXAMPLE First, a high-density cloth comprising 700 warp yarns and weft yarns of 700 ultra-fine polyester filaments each having a single fiber fineness of 0.06 denier was subjected to a water jet punching treatment.
A recording fabric having a dense surface was obtained.

A temporary image was heat-transfer-printed on this recording cloth using a sublimation-type dye-containing fusion-type thermal transfer ribbon as shown in FIG. In addition, CIDisperse B is used as a sublimation dye.
lue330, 1,2,3-heptanetriol as a substance satisfying the condition of 50 ° C ≦ melting point <boiling point ≦ 200 ° C, a polyethylene terephthalate film as a base film, and an acrylic resin as a heat-resistant layer.

The resulting temporary image composed of dyes and the like also entered the concave portions of the fabric, and was excellent in sharpness.

Thereafter, the fabric was hot pressed at 180 ° C. The image was also excellent in sharpness, and was almost the same as an image obtained by inkjet dyeing, which was not significantly affected by the unevenness of the fabric.

[0028]

As described above, the present invention provides a thermal transfer print image excellent in sharpness for any fabric using at least a fiber dyeable with a sublimation dye. A dyed fabric having excellent sharpness can be provided.

[Brief description of the drawings]

FIG. 1 is a conceptual diagram showing a cross-sectional structure of a sublimation dye-containing fusion type thermal transfer ribbon of the present invention.

FIG. 2 is a conceptual diagram showing a cross-sectional structure of a sublimation type dye-containing fusion type thermal transfer ribbon of the present invention, which is a more preferable embodiment than the conceptual diagram of FIG.

FIG. 3 is a conceptual diagram showing a cross-sectional structure of a sublimation type dye-containing fusion type thermal transfer ribbon of the present invention, which is a more preferable embodiment than the conceptual diagram of FIG.

[Explanation of symbols]

1: Sublimation dye, vehicle and 50 ° C. ≦ melting point <boiling point ≦ 20
Ink layer composed of a substance satisfying the condition of 0 ° C. or a substance having a sublimation point of 50 ° C. or more 2, 6: base film 3, 7, 12: heat-resistant layer 4, 8: ink layer composed of a sublimation type dye and a vehicle, 5: vehicle And an intermediate layer composed of a substance satisfying the condition of 50 ° C. ≦ melting point <boiling point ≦ 200 ° C. or a substance having a sublimation point of 50 ° C. or more 9: Film on the ink side of the base film layer 10: 50 ° C. ≦ melting point <boiling point ≦ 200 ° C. A substance satisfying the conditions or a substance having a sublimation point of 50 ° C. or higher 11: Film on the heat-resistant layer side of the base film layer

Claims (4)

(57) [Claims] 1. A sublimation dye-containing fusion type thermal transfer ribbon, comprising a base film layer and an ink layer,
The ink layer is mainly composed of a sublimation dye, a vehicle made of wax and / or a synthetic resin, and 50 ° C. ≦ melting point <boiling point ≦
A fusion type thermal transfer ribbon for fabric dyeing, comprising a substance satisfying a condition of 200 ° C. or a substance having a sublimation point of 50 ° C. or higher, and a base film layer having a heat-resistant layer on a surface opposite to an ink layer. 2. A fusion type thermal transfer ribbon containing a sublimation type dye, which mainly comprises a base film layer, an ink layer and an intermediate layer interposed therebetween, wherein the ink layer mainly comprises a sublimation type dye, a wax and / or a synthetic resin. The intermediate layer is mainly composed of the above-mentioned vehicle and 50 ° C ≦
A fusion type thermal transfer ribbon for fabric dyeing, comprising a substance satisfying a condition of melting point <boiling point ≤ 200 ° C or a substance having a sublimation point of 50 ° C or more, and a base film layer having a heat-resistant layer on a surface opposite to an ink layer. . 3. A sublimation-type dye-containing fusion-type thermal transfer ribbon, comprising a base film layer and an ink layer,
The ink layer is mainly composed of a vehicle composed of a sublimation dye and a wax and / or a synthetic resin. A fusion type thermal transfer ribbon for fabric dyeing, characterized by having a three-layer structure comprising a heat-resistant layer on the surface of the base film layer opposite to the ink layer. 4. A substance satisfying the condition of 50 ° C. ≦ melting point <boiling point ≦ 200 ° C. or a substance having a sublimation point of 50 ° C. or more is enclosed in a microcapsule having a diameter of 2 μm or less, and the shell of the microcapsule is 4. The fusion type thermal transfer ribbon for fabric dyeing according to claim 1, wherein the ribbon is ruptured only when heated at a temperature higher than the boiling point of the substance, due to a rise in the vaporized pressure of the substance.