TWI723847B - Transfer printing method and decorative products - Google Patents

Abstract

The present disclosure provides a transfer printing method and a decorative products formed by the transfer printing method. The transfer printing method includes following steps: providing a base film having a two-dimensional pattern; placing an object with a three-dimensional contour on a porous plate; placing the base film on the porous plate and covering the object to form a space between the base film, the object and the porous plate; and exhausting a gas in the space so that the two-dimensional pattern of the base film is attached on the corresponding position of the three-dimensional contour of the object to form a decorative film on the surface of the object.

Description

Transfer method and decorative products

The present invention relates to a transfer method and a decorative product, and more particularly to a transfer method for transferring a two-dimensional pattern to the surface of a three-dimensional object and a decorative product formed by the method.

In-mold decoration (IMD) is a technology that integrates printing, hot pressing, injection and other plastic processing processes. Although with different technologies, such as in-mold label (IML), in-mold label (IML), In-mold roller (IMR) or in mold film (IMF), the materials used will be different, but the molding principles are basically the same. Generally speaking, the process of in-film decoration technology includes the following steps: (1) Printing process: Use screen printing, digital printing, pad printing or hot stamping to obtain a decorative formable film; (2) Forming process: Use high-temperature thermal deformation to make the printed film into the required shape, and then be precision cut to become a pre-formed film; and (3) injection process: place the pre-formed film in the cavity of the injection machine, and then the plastic part is injected. Or product.

However, the above process has some disadvantages. For example, the IML and IMR processes cannot be 3D molded, the IMR process is not suitable for use on complex-shaped surfaces, or the IMF process has low yield and is not suitable for mass production.

The present invention provides a transfer method and a decorative product formed by the transfer method, wherein the transfer method can well transfer a two-dimensional (2D) image onto the surface of a three-dimensional (3D) object.

An embodiment of the present invention provides a transfer method including the following steps: providing a base film with a two-dimensional pattern; placing an object with a three-dimensional outline on a porous plate; placing the base film on the porous plate and covering the object to A space is formed between the base film, the object and the porous plate; and the gas in the space is discharged, so that the two-dimensional pattern of the base film is attached to the corresponding position of the three-dimensional outline of the object to form a decorative layer on the surface of the object.

In an embodiment of the present invention, the above-mentioned two-dimensional pattern is designed according to the three-dimensional contour of the object.

In an embodiment of the present invention, when viewed from a top view, the two-dimensional pattern of the base film is different from the pattern of the decoration layer.

In an embodiment of the present invention, the aforementioned base film includes a flexible substrate.

In an embodiment of the present invention, the above transfer method further includes heating the base film before the base film is placed on the porous plate and covered with the object.

In an embodiment of the present invention, the surface of the base film facing the object is sticky.

In an embodiment of the present invention, the surface of the above-mentioned object facing the base film is sticky.

An embodiment of the present invention provides a decorative product, which includes an object with a three-dimensional outline and a decorative layer. The decoration layer is formed on the surface of the object by the transfer method as described above.

Based on the above, the present invention makes the two-dimensional pattern of the base film attached to the corresponding position of the three-dimensional outline of the object by exhausting the gas in the space to form a decorative layer on the surface of the object. The printing method can be suitable for use on complex-shaped three-dimensional contoured surfaces, and it has a good yield rate and is suitable for mass production.

The following will describe the creation of the new type more comprehensively with reference to the drawings of this embodiment. However, the new creation can also be embodied in a variety of different forms, and should not be limited to the embodiments described herein. The thickness of the layers and regions in the drawing will be exaggerated for clarity. The same or similar reference numbers indicate the same or similar elements, and the following paragraphs will not repeat them one by one. In addition, the directional terms mentioned in the embodiments, for example: up, down, left, right, front or back, etc., are only directions for referring to the attached drawings. Therefore, the directional terms used are used to illustrate and not to limit the creation of the new model.

It should be understood that when an element is referred to as being "on" or "connected to" another element, it can be directly on or connected to the other element, or intervening elements may also be present. If an element is said to be "directly on" or "directly connected to" another element, there are no intermediate elements.

As used herein, "about", "approximately" or "substantially" includes the mentioned value and the average value within the acceptable deviation range of the specific value that can be determined by a person with ordinary knowledge in the technical field. The measurement in question and the specific number of errors associated with the measurement (ie, the limitations of the measurement system). For example, "about" can mean within one or more standard deviations of the stated value. Furthermore, the "about", "approximate" or "substantially" used herein can select a more acceptable deviation range or standard deviation based on optical properties, etching properties or other properties, and not one standard deviation can be applied to all properties .

The terms used in this text are only used to illustrate exemplary embodiments, but not to limit the creation of the new type. In this case, unless otherwise explained in the context, the singular form includes the majority form.

1A to 1F are schematic diagrams of a transfer method according to an embodiment of the present invention.

First, referring to FIG. 1A, a base film 100 having a two-dimensional pattern 102 is provided. In this embodiment, the two-dimensional pattern 102 may include a plurality of sub-patterns that are the same or different from each other. For example, FIG. 1A uses a Pikachu pattern as an exemplary embodiment of the two-dimensional pattern 102 for illustration. As shown in FIG. 1A, the two-dimensional pattern 102 may include a first sub-pattern 102a, a second sub-pattern 102b, a third sub-pattern 102c, and a fourth sub-pattern 102d that are different from each other, wherein the first sub-pattern 102a may correspond to Pikachu Patterned ears; the second sub-pattern 102b may correspond to the eyes of the Pikachu pattern; the third sub-pattern 102c may correspond to the blush of the Pikachu pattern; and the fourth sub-pattern 102d may correspond to the nose and mouth of the Pikachu pattern. In this embodiment, as shown in FIG. 1A, the two-dimensional pattern 102 may be a color pattern. In this embodiment, the material of the base film 100 may include a thermoplastic material, but the present invention is not limited to this. In other embodiments, the material of the base film 100 may also include a flexible substrate.

Next, referring to FIG. 1B, an object 200 having a three-dimensional outline is provided. In this embodiment, the three-dimensional outline of the object 200 and the two-dimensional pattern 102 of the base film 100 correspond to each other. For example, the above-mentioned FIG. 1A is described with a Pikachu pattern as an exemplary embodiment of the two-dimensional pattern 102, and the three-dimensional contour of the object 200 shown in FIG. 1B is described with a three-dimensional Pikachu as an exemplary embodiment. . As shown in FIG. 1B, the object 200 may include a first portion 200a and a second portion 200b corresponding to the first sub-pattern 102a, the second sub-pattern 102b, the third sub-pattern 102c, and the fourth sub-pattern 102d of the two-dimensional pattern 102, respectively. , The third part 200c and the fourth part 200d. In other words, the two-dimensional pattern 102 of the base film 100 can be designed according to the three-dimensional contour of the object 200.

Then, referring to FIG. 1C and FIG. 1D, the base film 100 with the two-dimensional pattern 102 is placed in the machine 300. In this embodiment, the machine 300 may include a suction component 302, a perforated plate 304, a fixing component 306, and a heating component 308. In this embodiment, the suction component 302, the perforated plate 304, the fixing component 306, and the heating component 308 can be successively arranged in the machine 300 from bottom to top. The fixing member 306 can be used to fix the base film 100 in the machine 300. The porous plate 304 may have a plurality of suction holes, and the suction member 302 may provide a vacuum environment above the porous plate 304 through the suction holes. The heating part 308 may be used to heat the base film 100.

In this embodiment, after the base film 100 is fixed in the machine 300 by the fixing member 306, the fixing member 306 can be raised to expose the perforated plate 304. After that, the object 200 with a three-dimensional outline can be placed on the perforated plate 304. In this embodiment, the fixing member 306 can be raised to a position adjacent to the heating member 308, so that the base film 100 can be heated before the subsequent step of placing the base film 100 on the porous plate 304 and covering the object 200.

Afterwards, referring to FIGS. 1D and 1E, the base film 100 can be placed on the porous plate 304 and cover the object 200 by moving the fixing member 306 to form a space S between the base film 100, the object 200, and the porous plate 304 . In some embodiments, before placing the base film 100 on the porous plate 304 and covering the object 200, an adhesive layer may be provided on the surface of the base film 100 facing the object 200, so that the base film 100 faces the object 200. The surface is sticky. In other embodiments, before placing the base film 100 on the porous plate 304 and covering the object 200, an adhesive layer may be provided on the surface of the object 200 facing the base film 100, so that the object 200 faces the base film 100. The surface is sticky.

1E and 1F, the gas in the space S is discharged, so that the two-dimensional pattern 102 of the base film 100 is attached to the corresponding position of the three-dimensional outline of the object 200 to form a decoration layer 110 on the surface of the object 200 . For example, as shown in FIGS. 1A and 1B, the first sub-pattern 102a, the second sub-pattern 102b, the third sub-pattern 102c, and the fourth sub-pattern 102d of the two-dimensional pattern 102 of the base film 100 can be attached to the object 200 respectively. The first part 200a, the second part 200b, the third part 200c, and the fourth part 200d attached to the corresponding object 200. In this embodiment, the gas in the space S can be discharged from the suction holes of the porous plate 304 through the suction member 302, so that the space S above the porous plate 304 is in a vacuum condition, thereby allowing the base film 100 to be attached to the object 200 The decorative pattern 110 is formed on the top, so that the decorative pattern 110 can be well formed on the three-dimensional contour surface with complex shape, and the transfer method of the above embodiment has a good yield and is suitable for mass production. In this embodiment, from a top view, the two-dimensional pattern 102 of the base film 100 may be different from the pattern of the decoration layer 110. In order to clearly show the relative position between the decorative pattern 110 of the present invention and the object 200, the decorative layer 110 shown in FIG. 1F does not closely cover the surface of the object 200. However, in other embodiments, the decorative pattern 110 may cover the surface of the object 200 closely and completely, making it difficult to detect.

Hereinafter, the decorative product of this embodiment will be described with reference to FIG. 1F.

1F, the decoration product 10 may have an object 200 with a three-dimensional outline. The decoration layer 110 may be formed on the surface of the object 200 by the transfer method as described above.

To sum up, the transfer method of the above embodiment is to discharge the gas in the space to make the porous plate present in a vacuum state, so that the two-dimensional pattern of the base film is attached to the corresponding position of the three-dimensional outline of the object. In order to form a decorative layer on the surface of the object, the transfer method of the present invention can be suitable for use on a three-dimensional contour surface with a complex shape, and it has a good yield rate and is suitable for mass production.

100: basement membrane

102: Two-dimensional pattern

102a: The first sub-pattern

102b: The second sub-pattern

102c: The third sub-pattern

102d: Fourth sub-pattern

200: Object

200a: part one

200b: second part

200c: part three

200d: Part Four

300: machine

302: Suction part

304: perforated plate

306: fixed parts

308: heating parts

S: Space

1A to 1F are schematic diagrams of a transfer method according to an embodiment of the present invention.

100: basement membrane

102: Two-dimensional pattern

102a: The first sub-pattern

102b: The second sub-pattern

102c: The third sub-pattern

102d: Fourth sub-pattern

Claims (10)

A transfer method includes: providing a base film with a two-dimensional pattern; placing an object with a three-dimensional outline on a porous plate; placing the base film on the porous plate and covering the object so as to A space is formed between the base film, the object, and the porous plate; and the gas in the space is exhausted through the suction holes in the porous plate, so that the two-dimensional pattern of the base film is attached At a position corresponding to the three-dimensional contour of the object, a decorative layer is formed on the surface of the object. The transfer method according to claim 1, wherein the two-dimensional pattern is designed according to the three-dimensional outline of the object. The transfer method according to claim 1, wherein the two-dimensional pattern of the base film is different from the pattern of the decoration layer when viewed from a plan view. The transfer method according to claim 1, wherein the two-dimensional pattern is a color pattern. The transfer method according to claim 1, wherein the base film includes a flexible substrate. The transfer method according to claim 1, wherein the base film includes a thermoplastic material. The transfer method according to claim 6, further comprising: heating the base film before placing the base film on the porous plate and covering the object. The transfer method according to claim 1, wherein the surface of the base film facing the object has adhesiveness. The transfer method according to claim 1, wherein the surface of the object facing the base film has adhesiveness. A decorative product includes: an object with a three-dimensional outline; and a decorative layer formed on the surface of the object by the transfer method according to any one of claim 1 to claim 9.

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