JP2925554B2 - Thermal transfer record for print proofreading with surface post-processing and surface post-processing method - Google Patents

Description

Description: FIELD OF THE INVENTION The present invention relates to a thermal transfer recording material for print proofreading, which has been subjected to a surface post-treatment, and a method for surface post-treatment thereof.

[Problems to be solved by conventional technology and invention]

The heat-transferred sheet that becomes the heat-sensitive transfer recording material is easily dyed with the dye that migrates from the dye layer of the heat transfer sheet by heating,
In order to obtain a sufficient printing density, a receiving layer is generally provided on a sheet substrate. The receiving layer has a smooth surface so that the printing suitability in thermal transfer is good, and therefore, the thermal transfer sheet provided with the receiving layer whose surface condition is always uniform as described above can be used. In the thermal transfer record, the image (texture) of the transfer image obtained was always constant.

However, when such a thermal transfer recorded material is used especially for printing proofing, the surface texture of the printing paper used for actual printing and the thermal transfer receiving sheet (receiving layer) often differ from each other. As a matter of course, there is a difference in the image between the thermal transfer recorded matter and the printed matter, and as a result, there is a problem that it is difficult to compare the color tone and the like between the two.

In order to solve the above-mentioned problem, it is conceivable to obtain a thermal transfer recorded material by replacing the material such as the sheet base material of the heat transfer sheet with the same or similar material as the printing paper. By changing the material of the sheet from the original material, the characteristics of the thermal transfer recording method cannot be fully utilized, and the work of appropriately selecting the sheet to be heat-transferred each time becomes very complicated. Could not be realized.

SUMMARY OF THE INVENTION The present invention has been made in view of the above points, and has been made in view of the above-mentioned circumstances. By adjusting the surface condition of the printing surface (receiving layer surface) of a thermal transfer recording material, a surface capable of producing an image image (texture) of an actual printed material It is an object of the present invention to provide a thermal transfer recorded material for print proofreading which has been subjected to post-processing, and a method for post-processing the surface thereof.

[Means for solving the problem]

The present invention provides: (1) In a thermal transfer recording material for print proofreading, in which a transfer image is recorded by thermal transfer in combination with a thermal transfer sheet on an image receiving layer of a thermal transfer transfer sheet, the surface of the image receiving layer on which the transfer image is recorded has a surface. A thermal transfer recording material for print proofreading, which has been subjected to a surface post-treatment, wherein the surface condition is adjusted to a surface condition equivalent to that of printing paper used for actual printing using a sheet member for condition adjustment.

(2) A surface post-treatment method for a thermal transfer recording material used for print proofing, wherein a transfer image is recorded on an image receiving layer of a heat transfer target sheet by thermal transfer in combination with a thermal transfer sheet, and thermal transfer recording for print proofing is performed. After preparing the product, on the image receiving layer on which the transferred image is recorded, a sheet-like member for surface condition adjustment having a surface condition equivalent to that of printing paper used for actual printing is laminated at least by pressing, and then the sheet A surface post-treatment method for a thermal transfer recording material for print proofing, wherein a surface post-treatment of a thermal transfer recording material for print proofreading is performed by peeling and removing a shaped member.

(3) The printing proofreading method according to claim 2, wherein a surface condition adjusting sheet member having a surface condition equivalent to that of a printing paper used for actual printing is laminated on the image receiving layer on which the transferred image is recorded by heating and pressing. Post-processing method for smoothing the surface of thermal transfer recorded material.

Is the gist.

〔Example〕

 Hereinafter, embodiments of the present invention will be described with reference to the drawings.

FIG. 1 shows an example of a thermal transfer recorded material subjected to the surface post-treatment of the present invention, wherein 1 is a sheet substrate, 2 is a receiving layer, 3 is a transferred image, and 4 is a surface post-treated surface. Show.

The thermal transfer recording material of the present invention is obtained by a known thermal transfer recording method using a thermal transfer sheet 5 having a receiving layer 2 provided on a sheet substrate 1 and a thermal transfer sheet having a dye layer. Then, the surface of the receiving layer 2 on which the transfer image 3 formed by the dye transferred from the dye layer of the thermal transfer sheet by the thermal transfer is recorded is printed on a printing sheet used for actual printing with a sheet member for surface condition adjustment. The surface was post-treated by adjusting to an equivalent surface condition.

The surface post-treatment in the present invention is a process for appropriately adjusting the image state (texture) by variously adjusting the surface state of the printing surface of the thermal transfer recording material, that is, the surface state of the receptor layer surface. It is an object to adjust the surface state of the image receiving layer after printing so as to approximate.

The surface post-treated surface 4 of the receiving layer 2 by the surface post-processing is, depending on the printing paper used for actual printing, a roughened state or a smoothed state which is more appropriate than the surface of the receiving layer 2 before the treatment. It will be changed to any surface state.
For example, a matte image surface is exhibited by making the surface rough, and a glossy image surface is produced by making the surface smooth. Incidentally, the surface post-treatment surface 4 in FIG.
Shows an example of a rough surface state having fine irregularities.

Next, a surface post-processing method performed on the thermal transfer recording material for print proofing as described above will be described.

The surface post-treatment method of the present invention comprises the steps of: forming a transfer image on a receptor layer of a heat transfer sheet by a thermal transfer recording method by combining a conventionally known heat transfer sheet and a thermal transfer sheet; Is what you do.

In the method of the present invention, first, a sheet member 7 for surface condition adjustment is laminated on the receptor layer 2 of the thermal transfer recording material 6 on which the transfer recording has been performed before the surface treatment (FIG. 2). The surface condition adjusting sheet-like member 7 is for adjusting the surface of the receiving layer 2 to a surface condition equivalent to the printing paper actually used for printing, and the surface is equivalent to the printing paper actually used for printing. It consists of a rough or smooth surface. FIG. 2 shows an example of the member 7 having a rough surface. Examples of the material of the sheet member 7 include papers such as cellulose fiber paper, medium paper, high quality paper, coated paper, cast coated paper, condenser paper, art paper, synthetic resin or emulsion impregnated paper; polyethylene terephthalate, polyethylene Synthetic resin film or paper made of polypropylene, polyvinyl chloride, cellophane, triacetate, polystyrene, polysulfone, polyvinyl alcohol, aramid, polyimide, polycarbonate, polymethacrylate, etc .; foamed sheets provided with microvoids inside the sheet are used. . These materials are usually used so that the surface state of the material itself is duplicated on the surface of the receiving layer. It may be used in a stacked configuration. The sheet-like member 7 can be subjected to a release treatment for facilitating release from the receiving layer surface by containing or applying a release agent or the like as necessary. Incidentally, a release agent or the like may be applied to the surface of the receiving layer in order to facilitate the above-mentioned peeling.

In laminating the surface-condition-adjusting sheet-like member 7 on the receiving layer 2, at least pressure is applied, but heating is also performed as necessary. As a means for performing the above-mentioned lamination while applying pressure or heating, a conventionally well-known method can be adopted. For example, a method of passing between heating rolls or a press roll (for example, a laminator or the like) and a heating means (for example, thermal Head, etc.) separately. The pressurizing and heating means may be installed in the thermal transfer recording apparatus or may be installed separately from the apparatus. The above pressurization is set as appropriate, but usually 1.0 to 5.0 kg / c
about m ² is preferred, and the heating is correlated with the pressure amount,
Usually, heating at 110 to 170 ° C. for 1 second is preferable.

After the sheet-like member 7 is pressed and laminated on the receiving layer 2,
The sheet member 7 is peeled and removed (FIG. 3). In the method of the present invention, the sheet-like member 7
Is subjected to surface post-processing of the thermal transfer recording material 6, and the image of the transferred image is different from that before the processing, and an image image as if a transferred image was formed on the sheet-like member 7 is obtained. can get. Therefore, if the sheet-like member 7 is the same as the printing paper actually used for printing or has the same surface condition as the paper, an image image similar to the actual printed matter is obtained on the thermal transfer recording material for print proofreading. Express.

Next, the present invention will be described in more detail with reference to specific examples.

Examples 1 to 5 (Preparation of thermal transfer sheet) Each of the ink compositions for the dye layer having the following composition was coated to a thickness of 4.5 µm.
On a polyethylene terephthalate film (Lumirror 5A-F53, manufactured by Toray Industries, Inc.) so that the coating amount when dried was 1.0 g / cm ^3, and dried at 80 ° C. for 5 minutes to obtain a thermal transfer sheet.

Ink composition for dye layer (yellow color) PTY-52 5.50 parts (Mitsubishi Kasei: CI Disperse Yellow 141) Polyvinyl butyral resin 4.80 parts (Sekisui Chemical Co., Ltd .: Esrec BX-1) Methyl ketyl ketone 55.00 parts Toluene 34.70 parts Release agent 1.03 parts Ink composition for dye layer (magenta color) MS Red G 2.60 parts (Mitsui Toatsu CI CI Disperse Red 60) Macrolex Red Bio 1.40 parts RET R (Bayer CI CIpers Violet 26) Polyvinyl butyral resin 3.92 parts (Sekisui Chemical Co., Ltd .: Esrec BX-1) Methyl ethyl ketone 43.34 parts Toluene 43.34 parts Release agent 0.40 part Ink composition for dye layer (cyan) Kayaset Blue 714 5.50 parts (Nippon Kayaku: CI Solvent Blue 63) Polyvinyl butyral resin 3.92 parts (Sekisui Chemical Co., Ltd .: Esrec BX-1) Methyl ethyl ketone 22.54 68.18 parts of the release agent 0.94 parts of toluene (creation of the thermal transfer sheet) thickness 150μm synthetic paper (Oji Yuka Ltd. Yupo FPG150)
In, applying the ink composition for the receiving layer of the following composition using a wire bar so that the coating amount when dried is 6.0 g / cm ³ ,
Drying was performed at 120 ° C. for 10 minutes to obtain a heat transfer sheet.

Receptive layer ink composition Polyester resin 11.5 parts (Toyobo: Vylon 200) Vinyl chloride-vinyl acetate copolymer 5.0 parts (UCC: VYHH) Amino-modified silicone 1.2 parts (Shin-Etsu Chemical: KF-393) Epoxy modification Silicone 1.2 parts (Shin-Etsu Chemical Co., Ltd .: X-22-343) Methyl ethyl ketone 50 parts Toluene 50 parts (Thermal transfer recording) A commercially available color video printer (Hitachi, Ltd .: VY-100) using the above heat transfer sheet and heat transfer sheet ), A transfer image was recorded.

(Surface Post-Treatment) The following surface-condition-adjusting sheet-like members are superimposed on the thermal transfer recorded material obtained above, and heated at a temperature of 150 ° C. for 1 second under a pressure of 3 kg / cm ² . It passed through a laminator.

Example 1 Fine paper Example 2 Coated paper Example 3 Cast coated paper Example 4 Foamed white polyethylene terephthalate film (D900: W900E) Example 5 Polyethylene terephthalate film (Toray) : Lumirror) Note that a release agent (manufactured by Free Coat Co., Ltd.) is provided on the surface of the cast coated paper of Example 3 in order to prevent heat fusion with the receptor layer.
Furicoat 700) was applied by spraying.

Next, the laminated sheet-like members were peeled off to obtain respective thermal transfer recorded materials subjected to surface post-treatment.

The receiving layer surface of the obtained recorded matter had a surface shape corresponding to the surface state of each surface condition adjusting sheet member, and the image on the image printing surface was very similar to the texture of each sheet member. . In addition, the surface smoothness and glossiness of the printed surface of each thermal transfer recorded material before the surface treatment and the printed surface of each thermal transfer recorded material after the treatment were measured using an Oken type air permeability / smoothness tester (Asahi Seiko (KY5) and a gloss meter (TypeVD, manufactured by Toyo Seiki Seisaku-sho, Ltd.), and the results are shown in the following table.

[Effects of the Invention] As described above, the thermal transcript for printing proofreading of the present invention is actually printed by making the surface of the receiving layer, on which the transferred image is recorded by performing a surface treatment, correspond to the sheet-like member for surface condition adjustment. Since the surface condition is adjusted to the same as that of the printing paper used for the image processing, the image (texture) can be modulated to appear as compared with the image before processing. Therefore, according to the present invention, an image obtained from an actual print record by performing surface treatment by selecting a sheet having the same surface condition as the print sheet as the sheet-like member is converted into a thermal transfer record. This makes it possible to easily make comparisons of the color tone and the like in proofreading, so that a remarkable practical effect is obtained.

In addition, the surface post-treatment method of the present invention is such that a sheet-like member for surface condition adjustment having a surface state equivalent to that of a printing paper actually used for printing is laminated on a receptor layer and peeled off, so that a receptor layer can be easily formed. It is possible to adjust the surface condition of the heat transfer sheet without changing the sheet base material etc. of the heat transfer sheet, and without the troublesome work, the image texture similar to the actual printed matter from the heat transfer sheet of the same type It is possible to freely obtain a thermal transfer recorded material for print proofreading which is developed.

[Brief description of the drawings]

FIG. 1 is a longitudinal sectional view showing an example of a thermal transfer recorded material for print proofreading of the present invention, and FIGS. 2 and 3 are longitudinal sectional views showing respective steps of a surface post-treatment method of the present invention. DESCRIPTION OF SYMBOLS 1 ... Sheet base material 2 ... Receiving layer 3 ... Transfer image 5 ... Heat transfer sheet 7 ... Sheet member for surface condition adjustment

Claims (3)

(57) [Claims] 1. A thermal transfer recording material for printing proofreading, in which a transfer image is recorded by thermal transfer in combination with a thermal transfer sheet on an image receiving layer of a heat transfer sheet, the surface condition of the image receiving layer on which the transfer image is recorded is adjusted. A thermal transfer recording material for print proofreading, which has been subjected to a surface post-treatment, wherein the surface condition is adjusted to the same as that of printing paper used for actual printing using a sheet member for printing. 2. A surface post-treatment method for a thermal transfer recorded material used for print proofing, wherein a transfer image is recorded on an image receiving layer of a heat-transferred sheet by thermal transfer in combination with a thermal transfer sheet, and a printing proofreading method is used. After preparing the thermal transfer recorded material, on the image receiving layer on which the transferred image is recorded, a sheet-like member for surface condition adjustment having a surface condition equivalent to the printing paper used for actual printing is laminated at least by pressing, A surface post-treatment method for a thermal transfer recording material for print proofreading, wherein the surface of the thermal transfer recorded material for print proofreading is performed by peeling and removing the sheet-like member. 3. A surface condition adjusting sheet member having a surface condition equivalent to that of printing paper used for actual printing is laminated on the image receiving layer on which the transferred image is recorded by heating and pressing.
The method for smoothing the surface of a thermal transfer recorded matter for print proofing described in the above.