JPS63151694A - Transfer painting process onto ceramic ware - 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] [Industrial application field] The present invention relates to a method for transfer painting of ceramics.

[Conventional technology]

One of the methods used to decorate ceramics is the transfer method using transfer paper. Transfer paper uses a special paper as a base material, coats a release agent layer on its surface, and prints a desired pattern on top of it using ink containing inorganic coloring pigments. After applying a glue such as gelatin to the surface and pasting the transfer paper, the base material is peeled off, and the design of the ink layer is transferred to the surface of the ceramic. After the transfer, the painting is completed by performing a firing process.

[Problems to be solved by the invention] ゛Transferring onto ceramics using transfer paper is done manually and is not efficient. In addition, ceramics may have simple external shapes such as flat surfaces or cylindrical surfaces, but ceramics may have complex curved surfaces such as spherical bulges and unevenness as shown in Figures 1 and 2. In some cases, it is impossible to bring the transfer paper into perfect contact with the curved surface without creating wrinkles or folds, so it is extremely difficult to accurately transfer the pattern without distortion or misalignment.

The present invention provides a method of painting which can easily, accurately, and efficiently transfer a pattern without deviation or distortion even on the complicated curved surface of ceramics.

[Means and effects for solving the problem] The method of the present invention is such that an ink layer and an adhesive layer are printed in this order on the surface of a heat-shrinkable synthetic resin film, and the surface is on the inside. A transfer paper formed into a tube is fitted onto the ceramic, and then the transfer paper is heated to cause the heat-shrinkable plastic film to heat-shrink, thereby making it adhere tightly to the surface of the ceramic. There is.

The transfer painting method of the present invention is applied to various types of painting using colored glazes, top paints, or bottom paints as inks for painting.

FIG. 3 shows an example of the cross-sectional layered structure of the transfer paper used in the present invention. (1)) is a heat-shrinkable synthetic resin film (hereinafter referred to as "shrink film J") which is a base paper;
(12) is a release agent layer applied to the surface of the shrink film (1)), and (13) is an ink used for decoration, which is applied to the surface of the shrink film (1)) to form a desired design pattern using screen printing, offset printing, tacho printing, etc. The design printed by (14) is an adhesive layer such as gelatin coated on the upper surface of the design ink layer (13). When transferring the underpainting onto the surface of ceramics, it is necessary to remove the shrink film (1) in order to apply the glaze to the surface after the transfer, but it is not possible to apply the colored glaze. In the transfer using ink or the transfer of overglaze using overpaint,
(Therefore, in that case, as shown in Figure 4, the release agent layer (12) can be omitted and the painting can be applied directly to the shrink film (1)) by adhesion to the ink layer (13). A transfer paper (10) on which an agent layer (14) is laminated by printing can be used. In addition, if the shrink film (1)) has mold releasability itself, such as a polypropylene film, in that case as well, the release agent layer (1)
2) can be omitted. If the shrink film (1)) is not peeled off and removed, the shrink film (1)) will burn and disappear in the firing process.

The shrink film (1)) which is the base paper is, for example,
It is a uniaxially or biaxially stretched film made of polyvinyl chloride, polystyrene, polyolefin, polyester, etc., and there are no particular restrictions on the material.

The ink of the ink layer (13) for painting is an inorganic coloring pigment (
For example, top or bottom paints based on iron, copper, cobalt, manganese, chromium, nickel, uranium, antimony, cadmium, tin, gold, silver, etc., or their oxides, or inorganic coloring pigments as glazes. It is a well-known ink for ceramics, such as mixed colored glazes.

Figure 1 shows a ceramic piece (20) with a spherical bulge on its body.
A transfer paper (10) formed into a tube is fitted onto the tube,
Hot air is blown onto the transfer paper (10) using a heater (30), and the shrink film is heated to a heat shrinkage temperature (for example, 60 to 180
Transfer paper (10 °C) is heat-shrinked by heating to
) is brought into close contact with the circumferential surface of the body of the ceramic (20) from the state shown by the chain line. Figure 2 shows a ceramic (
20) shows an example in which a tube-shaped transfer paper (10) is fitted onto the outside and is brought into close contact with the ceramic (20) by heat shrinking treatment. In either case, the transfer paper (1) does not wrinkle or distort due to heat shrinkage of the shrink film (1).
The entire surface of 10) adheres uniformly along the complicated curved surface of the ceramic (20).

The ink layer (13) for printing on the transfer paper (10) that adheres to the surface of the ceramics (20) is the shrink film (1).
is pressed against the ceramic surface by the heat shrinkage force (tightening force) of
It is evenly and accurately transferred to the ceramic surface via the adhesive layer (14).

If the painting is transferred to the surface of ceramics using transfer paper printed with colored glaze as ink, or if it is transferred to the surface of glazed ceramics using transfer paper printed with base paint, After finishing, the shrink film (1)) which is the base paper does not necessarily need to be peeled off, and the baking process may be performed with the shrink film (1)) still attached.

When transferring the underpainting using a transfer paper printed with the underpainting, after the transfer, the shrink film (1) is peeled off, glazed is applied, and then firing treatment is performed. For convenience in peeling off the shrink film (1)) after transfer, if necessary, cut the shrink film (1)) with tearing perforations (+8) and knobs (1) as shown in Figure 3.
, and then pull the tab piece (b) to cut and remove it along the perforation (al).

〔Effect of the invention〕

According to the present invention, by a simple process of covering ceramics with transfer paper and heat-shrinking the shrink film, it is possible to efficiently and precisely apply transfer decoration even to ceramics having complicated curved surfaces.

In addition, heat shrinkage treatment such as placing transfer paper on ceramics and blowing hot air is a simple operation and can be easily automated, making it extremely useful as a method for industrial painting of mass-produced ceramics. .

[Brief explanation of the drawing]

FIGS. 1 and 2 are front explanatory views showing an example of transfer paper with a design according to the present invention, and FIGS. 3 and 4 are cross-sectional views showing an example of transfer paper used in the present invention. 1): Shrink film, 12: Release agent layer, 13: Ink layer for painting, 14: Adhesive layer.

Claims (1)

[Claims] (1) A decorative ink layer and an adhesive layer were printed in this order on one side of a heat-shrinkable synthetic resin film, and the transfer paper formed into a tube was fitted onto a piece of ceramic with that side facing inside. Furthermore, a method for transferring a painting onto ceramics, characterized in that the heat-shrinkable synthetic resin film is brought into close contact with the surface of the ceramics by heating the transfer paper and heat-shrinking the heat-shrinkable synthetic resin film.