JPH0669759B2 - Method for manufacturing decorative member and transfer sheet used in the method - Google Patents

Description

TECHNICAL FIELD The present invention relates to a method for producing a decorative member having a pattern on its surface by transfer, and a transfer sheet used in the method.

BACKGROUND ART Conventionally, when a printed pattern layer of a transfer sheet is transferred to the surface of a transfer target, a release agent is coated on the surface of the transfer sheet so that the transfer sheet can be peeled off easily. The method of applying a printing pattern with ink to the surface of this release agent and providing it for transfer is adopted. Therefore, the transfer sheet is required to have good compatibility (rich adhesion) to the transfer sheet of the release agent, and also to have excellent printability and good releasability for the printed pattern. Its preparation and selection are difficult, and there is a technical problem that the quality of the selection immediately affects the transfer finish.

In addition, when the transfer sheet is peeled off, the above release agent may remain on the surface of the printed pattern layer to which it is transferred. This not only causes unevenness of the printed pattern layer, but also deteriorates the quality of the printed pattern layer. There is a problem in that the resin does not ride well and the protective function cannot be fully exerted.

In addition, regardless of the material of the transfer sheet, the surface of the release agent is always provided as the printing surface, so that the material of the transfer sheet cannot be used for printing, resulting in an increase in the steps of coating and drying the release agent, resulting in high cost. Becomes

As a method for transferring an arbitrary printed pattern to a curved surface portion, there is, for example, Japanese Patent Publication No. 57-50547. This is because a transfer sheet, which is printed with a special ink on a water-soluble film, is floated on water with the printing side facing up, and the transfer target is pressed from above and submerged in water to transfer the pattern by water pressure. It is a thing.

In this case, since the water-soluble film of the transfer sheet dissolves when floated on water, it is necessary to transfer it onto the transfer target material accurately while keeping the water surface condition quiet. Required technology. In addition, there was a problem that the pattern was distorted or expanded when floated on the water surface, and it was difficult to faithfully reproduce it.

Further, even when the water-soluble film is not used in order to avoid the above-mentioned problems in the underwater transfer method, it is necessary to dissolve and remove this film, resulting in complication in the process.

DISCLOSURE OF THE INVENTION Problems to be Solved by the Invention The present invention eliminates the above-mentioned problems in operation at the time of transfer or complexity in the process, and at the same time, abundant color tones and color pattern patterns due to printing are transferred onto the transfer target. An object of the present invention is to provide a decorative member which is reliably and reproducibly transferred to increase the added value, and to provide a manufacturing method therefor and a transfer sheet used in the method.

Means for Solving the Problems Thus, as a method for producing a decorative member for solving the above problems of the present invention, a pattern is formed on the surface of a PVC film with an ink containing a resin having releasability for the PVC film. By applying to produce a transfer sheet, the pattern layer of the transfer sheet is placed on the surface of the transferred material via an adhesive and firmly adhered under heating vacuum, and then the vinyl chloride film is peeled off. The pattern layer is left on the surface of the transferred material.

Further, as the transfer paper used in the above-mentioned production method, there is provided a transfer sheet obtained by printing a pattern on the surface of a vinyl chloride film with an ink containing a resin having releasability for the vinyl chloride film.

Operation In the present invention, a vinyl chloride film is used as the base material of the transfer sheet. This vinyl chloride film has a high degree of flexibility and is very easy to adapt to when it is transferred to the curved surface of the transfer target. In addition, in order to obtain a decorative board with high added value which is one of the objects of the present invention, it has good printability and can freely express a variety of colors and colors of wood grain or abstract patterns on the film. It is very effective. Further, the vinyl chloride film has excellent weather resistance, and it is not necessary to take any special care in handling even in the working process until transfer.

Further, the heating vacuum action, the adhesive layer, and the vinyl chloride film that increases flexibility by heating synergistically allow the pattern layer of the transfer sheet to be firmly adhered to the surface of the transferred material with high conformability.

Further, in the present invention, when a pattern is applied to a PVC film,
An ink containing a resin having releasability for a PVC film is used. Therefore, during the transfer, while firmly adhering the picture pattern layer of the transfer sheet to the surface of the transferred material by the adhesive at the time of transfer, it is extremely easy to peel off the PVC film after transfer and leave the picture at the time of peeling off, The transfer can be performed beautifully without the need for complicated work steps to remove the film.

By using a vinyl chloride film that further increases flexibility by heating, the transfer sheet can be faithfully fitted to the shape of the curved surface of the transfer target by appropriately selecting the heating temperature, time, etc. The pattern can be reproduced.

By providing the above-mentioned transfer method and transfer paper, it is possible to very effectively solve the above-mentioned problems in a transfer sheet having a print pattern layer provided via a conventional release material.

Example Hereinafter, an example of the method for producing the above-mentioned decorative member and the transfer sheet used for the same will be described in detail.

As a first step, a transfer sheet is produced.

First, a transparent or translucent PVC film is prepared as a material for the transfer sheet. This is because it is excellent in flexibility and printability, and it is convenient for accommodating the transferred material having the curved surface portion. On the surface of this vinyl chloride film, various pattern patterns such as wood grain or abstract pattern are applied by gravure printing depending on the type of the transferred material to form a pattern pattern layer. In normal printing, it is necessary for the printing material and the ink to firmly adhere to each other, but here, on the contrary, in order to improve the releasability, a gravure ink composed of a resin and a solvent that are incompatible with the vinyl chloride film. The printed pattern layer is printed by.

As the second step, the transfer sheet is brought into close contact with the transfer target.

The transfer sheet prepared in the first step is placed on the transfer target whose surface is coated with an adhesive by using an existing vacuum device, and is brought into close contact under pressure and heating vacuum. That is, the pattern layer is brought into close contact with the surface of the transferred material by a vacuum action using the medium that the adhesive adheres to the surface of the transferred material by heating. Here, unlike the conventional example, there is no need for a step of floating in water, so there is no concern that the pattern will be enlarged or distorted.

The flexibility of the transfer sheet, whose main material is PVC film, which increases its flexibility by heating, effectively acts to closely adhere to the curved surface shape of the transfer target, and the pressure and heating vacuum conditions are optimally set. By doing so, the adhesive applied to the surface of the transfer target and the pattern layer of the transfer sheet can be firmly adhered.

Furthermore, since the vinyl chloride film is transparent or translucent, it is possible to confirm whether the relative position with respect to the transfer target or the position of the pattern is appropriate when it is placed on the surface of the transfer target. It is very convenient in terms of work.

As a third step, the vinyl chloride film is peeled off.

By the second step, a member in which the transfer sheet and the transfer target are integrally adhered to each other is formed, and therefore, only the vinyl chloride film is removed from the vacuum device here, but the pattern layer on the transfer target is removed. It is in a state of being firmly adhered via an adhesive, while the pattern is printed on the PVC film with an ink having a releasability which is incompatible, so that it is possible to easily peel off the PVC film alone.

In this way, a member in which the pattern layer is transferred onto the transfer target can be formed. There is no need to remove the remaining water-soluble film as in the conventional example, and a faithful pattern corresponding to the original pattern one-to-one can be transferred onto the transfer target.

A resin for surface protection is applied as a fourth step.

Since the surface of the picture pattern layer is exposed when the vinyl chloride film is peeled off, a resin for protection may be further applied to the surface of the picture pattern layer in consideration of various resistance and cosmetic properties. Specific examples will be given below.

As a first step, a transfer sheet is prepared by printing a wood grain pattern on the surface of a transparent or translucent PVC film having a thickness of 70 microns with a gravure ink containing cellulose nitrate as a resin component and ethyl acetate as a solvent component. .

As the second step, first, a transfer target is prepared by applying an adhesive to the surface of a furniture member having an uneven portion. This is placed in a vacuum forming device, the PVC film is transparently positioned and placed so that the picture pattern portion of the transfer sheet overlaps it, and a rubber sheet is further laid over this and pressure is applied. The transfer medium is left in a vacuum state for 2 minutes to bring the adhesive and the pattern layer into close contact with each other.

As the third step, the member in which the transfer target and the transfer sheet are integrally bonded is taken out from the vacuum forming apparatus, and only the vinyl chloride film is peeled off to completely transfer the pattern layer to the adhesive surface.

As the fourth step, urethane resin is applied to the surface of the pattern layer in a thickness of 20 microns.

Through the above steps, it was confirmed that the original pattern was faithfully transferred onto the curved surface and the concave and convex portion of the transfer target material along the shape thereof in a tightly adhered state.

EFFECTS OF THE INVENTION As described above, according to the present invention, flexibility is added to the entire transfer sheet to improve conformability to the curved surface of the transfer target,
It is possible to perform transfer with excellent reproducibility, freely expand various print patterns by adding printability, and to produce a higher-quality decorative member with high added value. At the same time, the suitability conditions for the transfer sheet can be significantly improved.

In addition, while using a vinyl chloride film as a carrier of the pattern pattern layer to be transferred, by using a means for printing the pattern pattern layer using an ink containing a resin having a releasability on the surface of the vinyl chloride film, it is provided to the above transfer. The transferability of the transfer sheet to be transferred and the transferability to the transfer target at the time of transfer are satisfied, and the peeling of the vinyl chloride film after transfer is facilitated. It has a feature that can be reduced and is extremely useful industrially. In addition, the heating vacuum action and the adhesive action of the adhesive layer previously applied to the surface of the transfer target are complementary, and the flexibility of the PVC film is combined with this, so that the pattern layer of the transfer sheet is attached to the surface of the transfer target. It can be firmly adhered with high conformability, and while obtaining this effect, the PVC film can be easily peeled from the pattern layer by the peeling property of the pattern layer after transfer, and as a result, it is reproduced as described above. High-quality transfer with good performance can be easily obtained.

According to the present invention, it is difficult to prepare and select a release agent, such as a conventional transfer sheet coated with a release agent and having a printed pattern on its surface and a transfer method using the same, and the quality of the selection affects the transfer finish. It is possible to effectively overcome the technical problems that occur, and to effectively solve the problems that the release agent remains on the surface of the transfer sheet, which causes quality deterioration, and the deterioration of the adhesion of the protective resin. It was possible to drastically improve the transfer technology in the surface decoration of the member.

 ─────────────────────────────────────────────────── --Continued from the front page (56) References JP-A-55-47287 (JP, A) JP-A-62-39299 (JP, A)

Claims (2)

[Claims] 1. A transfer sheet is produced by applying a pattern on the surface of a vinyl chloride film with an ink containing a resin having releasability with respect to the vinyl chloride film, and a pattern pattern layer of the transfer sheet is provided on the surface of a transfer target. A method for producing a decorative member, which comprises placing it via an adhesive and bringing it into close contact under a heating vacuum, and then peeling off the vinyl chloride film to leave a pattern layer on the surface of the transferred material. 2. A transfer sheet obtained by printing a pattern on the surface of a vinyl chloride film with an ink containing a resin having releasability for the vinyl chloride film.