JPH02281994A - Embossing method for sublimation transfer receiver paper - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of Industrial Application This invention relates to a method for embossing sublimation transfer image paper.

Conventional technology Ink sheets that conventionally support heat sublimable dyes.

A sublimation transfer recording method is known, in which an image receiving paper having a dye-receiving layer is superimposed and an image is transferred to a desired position on the receiving paper by selective heating of a thermal head. You can get high quality images.

Problems to be Solved by the Invention The surface of the image obtained as described above is not only required to have excellent gloss, but also to be matte, or to have a compound mark, name, or other image character. There is an increasing demand for it to be recorded in a consistent manner.

However, in response to such requests for matting, there has been no method that can clearly express this with a simple process.

SUMMARY OF THE INVENTION Therefore, an object of the present invention is to provide an embossing method that can meet the above-mentioned conventional demands and achieve a clear matte state with a simple operation.

Means for Solving the Problems In order to achieve the above-mentioned objects, the present invention provides a method for selectively forming a multihead by superimposing an ink notebook supporting a heat-sublimable dye and an image receiving paper having a dye-receiving layer. A method of embossing the surface of image-receiving paper, on which an image has been transferred to a desired position by heating, by moving the surface of the image-receiving paper while applying heat and pressure using an embossing member that has been treated with particles such as patterns, letters, pictures, etc. It is.

The embossing master sheet or roll is superimposed on the surface of the image receiving paper after transfer, and the embossing master sheet or roll is moved while heating and pressurizing the image receiving paper, and the embossing master sheet or roll is placed on the surface of the image receiving paper. The uneven embossed surface provided on the roll is transferred, and this uneven embossed surface is formed on the surface of the image receiving paper.

EXAMPLE FIG. 1 shows the cross-sectional structure of a sublimation dye image-receiving paper 1, in which a cured receptor layer 1 with a thickness of 4 to 5 μm is formed from the surface in contact with the heat roll.
1. Polypropylene with a thickness of 50μI 12, thickness 100μ
It is composed of a paper base material 13 with a thickness of m and a polyethylene 14 with a thickness of 50 μm.

FIG. 2 shows the steps of embossing on such image receiving paper 1 (A, ), (B), and (C). 2 is a master sheet for embossing, and the thickness is 60 μm to 100 μm.
It is made of a micron polyester film, but it is made of a thin stainless steel plate, etc., and the surface is subjected to particle processing by sandblasting, chemical etching, etc., or the surface of the base material is made of aluminum oxide, chloride oxide, silicone, etc. It is also possible to use particles such as carbide or diamond adhered with an adhesive to form a rough surface. The size of the above particles is the mesh number specified by JIS, and #400 (40μ01) is #4000 (3μ
m) Select and create.

The embossing master sheet 2 created as described above is superimposed on the image receiving paper 1 on which the transfer has been completed (second
Figure (A)), heating roll 3 with built-in heater 4 and spring 6
It moves in the direction of the arrow while being simultaneously heated and pressurized by the pressure roll 5 to which pressure is applied (Fig. 2 (B)).
), by this operation, the shape of the unevenness formed on the embossing master sheet 2 is transferred to the image receiving paper 1. For such an object, if the embossing master sheet 2 is peeled off from the image receiving ml after cooling, the desired embossing will be performed on the image receiving fil. The heating and pressing conditions described above are such that the heating roller 3 is a rubber roller and is controlled at 150°C ± 5°C by a thermistor, and the pressing force is 4 kg/cm.
, the moving speed was 10 mm15.

FIG. 3 shows an example of a pattern when embossing is performed using a particulate pattern applied to the master sheet for embossing. ) is one in which embossing 21 has been applied except for the five character faces 22, and (C) is one in which pictures 23 and letters 24 have been transferred by embossing.

In the above embodiment, the master sheet 2 was used as the embossing member, but instead of this, the surface of the heating roller may be treated with particles.

Effects of the Invention The present invention is as described above, in which the surface of the image receptor onto which the image has been transferred is moved while being pressed and heated by an embossing member to emboss the surface of the image receiving paper. Processing work can be performed without requiring particularly difficult operations, and the embossed parts can be used repeatedly.In addition, the structure of the processing equipment can be easily replaced with vinegar, so embossed products can be replaced at low cost, and the embossed parts can be easily replaced. has the effect of changing something vivid.

[Brief explanation of drawings]

Fig. 1 is a partial sectional view of the image receiving paper, Fig. 2 is an explanatory diagram showing the procedure for applying this embossing to the same as above, and Fig. 3 is a front view showing various surfaces of the embossed image receiving paper obtained by the present invention. It is a diagram. 1... Receiving paper 2... Master sheet for embossing

Claims (1)

[Claims] 1. The ink sheet supporting the heat sublimable dye and the image receiving paper having the dye-receiving layer are overlapped and the image is transferred to the desired position by selective heating of the thermal head. A method for embossing a sublimation transfer image-receiving paper, characterized in that the surface of the image-receiving paper is embossed by moving an embossing member treated with particles according to a picture or the like while applying heat and pressure.