JPH0632382Y2 - Color heat transfer postcard paper - Google Patents

Description

[Detailed Description of the Invention] [Industrial field of application] The present invention relates to a color printer paper used as a postcard, a card, and the like. More specifically, in a thermal transfer printer, particularly a dye sublimation thermal transfer printer, a color that sharply receives a dye. A postcard for a printer, which is used for a postcard or the like, in which a color print surface is preliminarily printed and a receiving layer on which a color image can be printed is provided.

[Prior art and problems to be solved]

Recently, the development of color printers has progressed, and in particular, thermal transfer printers have become possible to realize clear color images with a relatively compact device. For thermal transfer printing, methods such as dye sublimation and wax-based molten ink are used.

Of these, the dye sublimation thermal transfer method is often used for small color printers and video printers as the mainstream of small non-impact printers, and a sheet that can obtain clear images with the sublimation dye thermal transfer method is being studied and developed. .

A sublimation dye thermal transfer printer uses an ink sheet in which a Y, M, and C sublimation dye ink is applied on a substrate such as a film or thin paper. Overlay this ink sheet with a receiving sheet coated with highly dyeable resin,
By the heat from the thermal head, the sublimation dye of each color is transferred to the receiving sheet at the required concentration only on the required portion to form an image.

In recent years, postcards that are hard copies of video images,
It is widely used to create with a sublimation dye thermal transfer printer, but this postcard paper is preprinted on the color print surface, and a postcard paper that can print a color image with the sublimation dye thermal transfer method is unknown.

The present invention aims to propose a color heat transfer postcard paper which is preliminarily printed on the color print surface of various heat transfer color printers including the sublimation dye heat transfer system and has good printing and image recording suitability. To do.

[Means for solving problems]

In view of such a current situation, the present inventor has earnestly studied a thermal transfer receiving sheet which can obtain a clear recorded image and is excellent in running property and durability.

As a result, as shown in FIG. 1, a predetermined print 3 is applied to one surface of the support 2 by using a UV curable ink or a thermosetting ink, and the heat transfer coloring material is well received and transparent. It has been found that a color heat transfer postcard paper can be obtained by providing the receiving layer 1 and performing the required printing 3'as a postcard on the opposite side. FIG. 1 is a partial vertical view of the postcard paper of the present invention.
FIG. 2 shows a plan view of the postcard paper of the present invention as seen from the table.

As the support used in the present invention, paper, various synthetic papers and synthetic resin films (polyethylene terephthalate, polyester, nylon, etc.), or paper and these films or various films bonded together can be used. For the receiving layer, a dye-dyeing resin such as a polyester resin or a polycarbonate resin to which a release agent, a curing agent, a whitening agent, a conductive agent, or the like is added, if necessary, can be used.

Since the receiving layer is usually applied as an organic solvent solution, a UV curable ink or a thermosetting ink having good solvent resistance is used as the printing ink.

〔Example〕

Next, the thermal transfer color postcard paper of the present invention will be described with reference to examples. In the examples, "part" means "part by weight of solid content".

Example 1 A 64 g / m ² fine paper was used as a support, and offset printing was performed using UV curable ink on both sides thereof (one side required postcard printing). On the surface opposite to the postcard printing surface, a receiving layer was formed with a solid content of 5 g / m ² using the following paint 1 to prepare a heat transfer color postcard paper.

Paint 1 Polyester resin (Byron 200, Toyobo Co., Ltd.) 100 parts Silicone resin (SH-3746 Torre Silicone Co., Ltd.) 5 parts Toluene 500 parts MEK 100 parts Example 2 Thermosetting ink as a printing ink (Lamitop 91 Kurotoyo) Example 1 except that gravure printing was performed using (ink)
A heat transfer color postcard paper was manufactured in the same manner as in.

Example 3 Instead of high-quality paper as a support, YUPO Coat (VIF210
A thermal transfer color postcard paper was manufactured in the same manner as in Example 1 except that Oji Yuka Synthetic Paper Co., Ltd. was used.

Example 4 As a support, YUPO (FPG60 Oji Oka Synthetic Paper Co., Ltd.)
Heat-transfer color postcard paper was manufactured in the same manner as in Example 1 except that a high-quality paper 64 g / m ² / Yupo Coat (manufactured by VIF90 Oji Okaka Synthetic Paper Co., Ltd.) was bonded with an adhesive. .

Comparative Example 1 A thermal transfer color postcard paper was prepared in the same manner as in Example 1 except that printing was performed using normal ink.

Comparative Example 2 Postcard printing was performed with UV ink only on one surface of the high-quality paper of Example 1, and a receiving layer was formed on the opposite surface with paint 1 in the same manner as in Example 1. Then, a UV ink was printed on the receiving layer, but the wettability of the receiving layer was poor and printing could not be performed.

Comparative Example 3 Similar to Comparative Example 2 except that a fluorine-based surfactant (Florard, manufactured by Sumitomo 3M Co., Ltd.) was added to the UV ink curable ink on the receiving layer to use an ink whose surface tension was lowered. Printed.

However, the adhesion was poor, and ink set-off occurred, making clear printing impossible.

The above dye thermal transfer printer sheet was printed with a commercially available dye thermal transfer color printer (VY-20, manufactured by Hitachi) and evaluated. The printing on the printed surface was evaluated by a sensory test. The results are shown in Table 1.

[Brief description of drawings]

FIG. 1 shows a partial cross-sectional schematic view of a postcard of the present invention, and FIG. 2 shows a plan view of the postcard of the present invention as seen from the table. 1 ... Receptive layer, 2 ... Support, 3 ... Printing ink

Claims (1)

[Scope of utility model registration request] 1. A transparent receptive layer having good receptivity for a heat transfer colorant is provided on a printed surface on one side of a base material, on which a predetermined printing is performed by using a UV curable ink or a thermosetting ink, and an opposite surface. Color heat transfer postcard paper with the required printing as a postcard on.