JPH0712032Y2 - Transfer material - Google Patents

Description

[Detailed description of the device] [Industrial applications]

The present invention relates to a transfer material capable of expressing a fine surface treatment design such as scratch processing.

[Prior art]

Conventionally, there is a method of using a hairline transfer material as one of means for applying a typical scratching hairline to the surface of a molded product. The hairline transfer material is a plastic sheet such as polyester that is scratched with sandpaper, uneven roll, or other abrasives and scratched to form hairline unevenness on the surface of the base sheet. And a peeling layer, a coloring layer, and an adhesive layer are sequentially laminated. Transfer materials with such a layer structure are thermocompression-bonded to plastic moldings such as high-impact polystyrene (HIPS resin) and acrylonitrile butadiene styrene (ABS) resin by the roll transfer method or the up-down transfer method, and then the base sheet is attached. By peeling and removing, the uneven shape of the base sheet was copied on the surface of the release layer to express the hairline unevenness. As described above, the scratch design in which physically fine irregularities such as spins are formed, including the hairline, is formed by using the transfer material.

[Problems to be solved by the device]

However, the transfer material having the above-mentioned layer structure uses a base sheet whose surface is scratch-treated, and a normal transfer material adopts a plastic film having a smooth surface as the base sheet. It was very expensive in comparison with that. Further, the scratch design formed by this transfer material is physically fine unevenness, but since it is formed by a peeling layer which is a resin layer, the surface strength is not sufficient and scratches and the like occur. It was easy. An object of the present invention is to solve the above-mentioned drawbacks and to provide a transfer material which can express a fine pattern having excellent surface strength and which is made of a normal material.

[Means for Solving the Problems]

The present invention is configured as follows in order to achieve the above object. That is, the transfer material of this invention has a release layer, a fine pattern layer, and an adhesive layer formed in this order on a base sheet having releasability, and the fine pattern layer is composed of a color-adjusted pattern layer and a solid layer and has a width of 0.25. It is configured to have a fine line pattern of mm or less. The invention will be described in more detail with reference to the drawings. 1 and 2 are sectional views showing an embodiment of the transfer material of the present invention. Reference numeral 1 is a base sheet, 2 is a release layer, 3 is a fine pattern layer, 31 is a pattern layer, 32 is a solid layer, 4 is an adhesive layer, and 5 is a metal thin film layer. As the base sheet 1, a plastic film such as polyethylene terephthalate or polypropylene / polyethylene / nylon / cellophane, or a composite film of these and paper, which is used as a base sheet of a normal transfer material, is used. Further, in order to adjust the gloss of the transfer surface, the base sheet 1 may be subjected to a matting treatment, if necessary. A release layer 2 is formed on the surface of the base sheet 1 in order to improve the releasability of the base sheet 1. The release layer 2 is provided on the entire surface of the base sheet 1, and is peeled from the base sheet 1 after transfer. Further, it has a function of protecting the transfer layer itself because it becomes the surface of the transfer target after transfer.
The release layer 2 is formed by an ordinary printing method such as a roll coating method, a gravure printing method, or a screen printing method. As the peeling layer 2, an acrylic resin, a cellulose resin, a vinyl resin, a rubber resin, or the like is used. Further, a peeling auxiliary layer made of wax or silicon may be provided between the base sheet 1 and the peeling layer 2. The fine pattern layer 3 is formed on the release layer 2. The fine pattern layer 3 includes a pattern layer 31 and a solid layer 32. The fine pattern expresses scratch processing such as hairline and spin. In order to effectively reproduce a scratching design such as a hairline with a printing ink pattern, it is necessary to form the pattern layer 31 into a fine line of 0.25 mm or less. Further, by using a gravure plate having a plate depth of 20 μm or less, it is possible to prevent ink bleeding and perform printing with faithful reproduction of plate accuracy. Also, in normal gravure printing, the printed pattern is composed of dots, but such a pattern may look unnatural. Therefore, the screen is omitted at the time of plate making, and the pattern layer 31 is formed by using the gravure screenless plate in which the shape of the pattern to be printed itself is made as a cell, thereby reproducing the design of scratch processing by the connected thin lines. Is even more effective. Further, the pattern layer 31 may be formed by an offset printing method. The offset printing method is originally a printing method suitable for forming a fine pattern. For the solid layer 32, a normal printing method / ink may be adopted. This fine pattern layer 3
Is not actually uneven, but is visually expressed as if it were uneven. In order to express the uneven pattern, not only the hue is simply changed, but also the uneven pattern is visually expressed by the difference between the base color and the pattern color such as brightness / saturation or transparency. Further, an ink containing aluminum powder or pearl powder may be used. Further, the pattern layer 31 and the solid layer 32 may be a single layer or a multi-layered structure having multiple colors. Further, the solid layer 32 may have a metal thin film layer 5 of aluminum, nickel or the like formed by a vacuum deposition method, a sputtering method, an ion plating method or the like as one of its constituent layers (see FIG. 2). ). Further, in order to express the pattern of the hairline by changing the luster, the pattern layer 31 is formed by matte ink. This mode is a particularly effective means when the metal thin film layer 5 is adopted as the solid layer 32. The adhesive layer 4 is a layer that is formed on the fine pattern layer 3 and that adheres the above layers to the transferred material. As the adhesive layer 4, a heat-sensitive or pressure-sensitive resin suitable for a surface material such as a plastic molded product which is a transfer target is appropriately used.
For example, when the transferred material is polystyrene, acrylic resin or vinyl chloride vinyl acetate resin is used, and when polypropylene is transferred, chlorinated polypropylene resin or ethylene vinyl acetate resin is preferably used. By forming each layer in this way, a transfer material can be obtained.

[Action]

The transfer material of the present invention comprises a releasable substrate sheet 1, a fine pattern layer 3 and an adhesive layer 4 which are sequentially formed, and the fine pattern layer 3 is a fine line pattern having a width of 0.25 mm or less. When this transfer material is superposed on the transfer target and heated and pressed, the adhesive layer 4 melts and adheres to the transfer target. When the base sheet 1 is peeled off, the base sheet 1 is peeled off at the interface between the peeling layer 2 and a hairline pattern is formed on the surface of the transferred material. Here, the low lightness / matte portion looks like a concave portion, while the high lightness / lustrous portion looks like a convex portion. That is, the pattern of the pattern layer 31 and the solid layer 32 visually expresses a necessary and sufficient hairline on the transfer target.

【Example】

A 25 μm-thick polyethylene terephthalate film was used as a base sheet, and a release layer made of a methyl methacrylic resin mixed with a surface-reinforcing polyethylene wax was formed thereon. On this, a gray pattern layer in which titanium oxide, carbon black and the like were mixed in a methylmethacrylic resin was formed. Next, a black solid layer in which carbon black was mixed in the methyl methacrylic resin was formed. Finally, an adhesive layer made of carbon black and made of methylmethacrylic resin in black was laminated thereon.

[Effect of device]

The transfer material of the present invention is economical because it has a normal base sheet and a normal printing layer because the design such as scratching is formed by the fine pattern layer. In addition, the design of the fine surface treatment formed by using this transfer material is not due to physical irregularities, but its surface is smooth, so that it is highly durable with less scratches and the like.

[Brief description of drawings]

1 and 2 are sectional views showing an embodiment of the transfer material of the present invention. 1 ... Base sheet, 2 ... Release layer, 3 ... Fine pattern layer, 31 ... Pattern layer, 32 ... Solid layer, 4 ... Adhesive layer,
5: Metal thin film layer.

Claims (3)

[Scope of utility model registration request] 1. A release layer formed on a base sheet having releasability.
A fine pattern layer and an adhesive layer are sequentially formed, and the fine pattern layer is composed of a pattern layer with a adjusted color tone and a solid layer
A transfer material having a fine line pattern of 0.25 mm or less. 2. The transfer material according to claim 1, wherein the fine pattern layer is formed by printing with a gravure plate having a plate depth of 20 μm or less. 3. The transfer material according to claim 1, wherein the fine pattern layer is formed by printing with a gravure screenless plate.