JP2013184322A - Transfer method and transfer device - Google Patents

Abstract

PROBLEM TO BE SOLVED: To enable heat transfer of a transfer foil to an entire outer peripheral surface of a container with uniform and good finishing even when the container has a square cross section or an other non-circular cross section.SOLUTION: In a method of transferring a transfer foil to an outer peripheral surface of a container 1, the container 1 is rotatably supported about an axial line x of the container at its both ends, and a heat transfer roller 6 is pressed and rotated on an outer peripheral surface of the supported container 1 to perform transfer from the transfer foil 5 to the outer peripheral surface of the container 1.

Description

  The present invention relates to a transfer method and a transfer apparatus suitable for performing metallic decoration on an outer peripheral surface of a cylindrical container such as a lip gloss container or an eyeline container.

  As one technique for metallicly decorating the surface of various articles, a technique of thermally transferring a transfer foil against the article surface is widely used (see, for example, Patent Document 1).

JP-A-8-34112

  In order to perform thermal transfer onto the outer peripheral surface of the cylindrical container, for example, as shown in FIG. 9, the container 1 is placed and supported on a pair of receiving rollers 8 arranged in parallel, and the outer periphery of the container 1 is The transfer foil can be uniformly transferred to the outer peripheral surface of the container 1 by rotating the transfer foil 5 while pressing the transfer foil 5 on the surface with the thermal transfer roller 6.

  However, when the container 1 has a rectangular tube shape, the flat portion and the corner portion of the outer peripheral surface of the container are repeatedly contacted with the receiving roller 8 so that the rotation of the container 1 becomes unstable and the container 1 moves up and down. Will do. For this reason, the pressing force of the transfer foil 5 by the thermal transfer roller 6 changes, the thickness of the transfer foil and the transfer form change between the flat portion and the corner portion of the outer peripheral surface of the container, and uniform transfer over the entire peripheral surface. It was difficult to do.

  The present invention has been made paying attention to such a situation, and a transfer method capable of performing metallic decoration etc. by uniform thermal transfer even in a container having a non-circular cross-sectional shape such as a square, and the like. It is an object of the present invention to provide a transfer device used for the above.

  In order to achieve the above object, the present invention is configured as follows.

  (1) The transfer method of the present invention is a method of transferring a transfer foil to the outer peripheral surface of a container, wherein the container is rotatably supported at both ends thereof, and the outer peripheral surface of the container and the thermal transfer roller are The transfer foil is transferred to the outer peripheral surface of the container by rotating in a state of being pressed through the transfer foil.

  According to the present invention, a container whose both ends are rotatably supported can be stably rotated while being pressed by the thermal transfer roller regardless of the cross-sectional shape thereof, and the cross-sectional shape is square or other non-circular shape. Even in a container, the transfer foil can be thermally transferred to the entire outer peripheral surface with a good finish.

  (2) In a preferred embodiment of the transfer method of the present invention, the container is a bottomed rectangular tube having an opening at one end and a bottom at the other end, and is rotatably supported around the axis of the rectangular tube. Is done.

  According to this embodiment, both ends of the rectangular tube-shaped container that has been difficult to thermally transfer are rotatably supported, and are stably rotated around the axis of the rectangular tube, so that the outer peripheral surface of the rectangular tube-shaped container is The transfer foil can be thermally transferred satisfactorily.

  (3) The transfer device of the present invention is a device for transferring the transfer foil onto the outer peripheral surface of the container, and includes first and second rotatable jigs for sandwiching the container from both ends thereof, a thermal transfer roller, And rotating the outer peripheral surface of the container sandwiched between the first jig and the second jig and the thermal transfer roller in pressure contact with each other via the transfer foil. Is transferred to the outer peripheral surface of the container.

  According to the transfer apparatus of the present invention, the thermal transfer roller is rotated while pressing the transfer foil against the outer peripheral surface of the container firmly held from both ends by the rotatable first jig and the second jig, thereby stably rotating the container. Thus, continuous thermal transfer can be performed on the outer peripheral surface, and the transfer method of the present invention can be suitably implemented.

  (4) In a preferred embodiment of the transfer device of the present invention, the container has a bottomed rectangular tube shape having an opening at one end and a bottom at the other end, and the first jig has the opening of the container. The second jig presses the bottom portion of the container, and holds the container rotatably around the axis of the square tube.

  According to this embodiment, the rectangular tube-shaped container that has been difficult to thermally transfer is pressed and clamped by the first and second jigs that are rotatable from both ends, and is stably rotated around the axis of the rectangular tube. Thus, the transfer foil can be thermally transferred onto the outer peripheral surface of the rectangular tube-shaped container.

  (5) In the embodiment of the above (4), a recess may be formed in the bottom of the container, and the second jig may be pressed by engaging its tip with the recess.

  According to this embodiment, the bottom portion of the container can be supported by the second jig without being misaligned and without falling off, and the container can be stably rotated.

  (6) In the embodiment of the above (4) or (5), the container may be pressurized from the inside by supplying pressurized gas into the container via the first jig.

  According to this embodiment, even if the peripheral wall portion of the container is softened by the heat transmitted from the thermal transfer roller, the internal pressure is increased by the supplied pressurized gas, for example, pressurized air. The peripheral wall portion is not deformed inward of the container, and thermal transfer by uniform pressing can be performed over the entire circumference of the container.

  In a preferred embodiment of the transfer device according to the present invention, the container may have an octagonal or more rectangular tube shape.

  According to this embodiment, since the number of corners is eight or more, the transfer foil can be satisfactorily applied to the outer peripheral surface of the container without the corner portion of the outer peripheral surface having a large curvature R surface as in the case of a small number of corners. Thermal transfer is possible.

  Thus, according to the present invention, even if the cross-sectional shape is a square or other non-circular container, the transfer foil is thermally transferred to the entire outer peripheral surface with a uniform and good finish by rotating the container stably. be able to.

FIG. 1 is an external perspective view of the container. FIG. 2 is a front view showing the basic structure of the transfer apparatus. FIG. 3 is a side view of the transfer device. FIG. 4 is a schematic front view showing the transfer processing step. FIG. 5 is a front view of a transfer device corresponding to the container of another embodiment. FIG. 6 is a front view of a transfer device corresponding to a container according to another embodiment. FIG. 7 is an external perspective view of a container according to another embodiment. FIG. 8 is a side view of a transfer device corresponding to the container of another embodiment. FIG. 9 is a side view showing a conventional transfer apparatus.

  Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings.

  FIG. 1 shows an external appearance of a lip gloss container filled with a lip polishing liquid as an example of a container 1 for applying metallic decoration or the like to the outer peripheral surface. This container 1 is formed by blow molding a transparent resin material, and has a regular dodecagonal shape with a diameter of several tens of millimeters, an overall height of about several tens of millimeters, and can be filled with a polishing liquid of about 8 ml. It is formed in a rectangular tube shape. In addition, a cylindrical opening 1a for attaching a cap is provided on one end side of the container 1, and a concave portion 1b curved in a partial spherical shape with a depth of about 2 to 5 mm is provided on the bottom, which is the other end side. Is formed.

  FIG. 2 shows the basic structure of a transfer device that thermally transfers a transfer foil to the outer peripheral surface of the rectangular tube shape of the container 1 to perform metallic decoration.

  In this transfer apparatus, the container 1 is sandwiched between a first jig 2 arranged on the opening 1a side and a second jig 3 arranged concentrically with the first jig 2 on the bottom side. And is configured to be supported horizontally.

  The first jig 2 is rotatably supported around the axis x of the sandwiched rectangular tube-shaped container 1, and a tapered cone part 2 a is inserted concentrically into the opening 1 a of the container 1 at the tip part. In addition, a vent hole 4 connected to a pressurized air supply device (not shown) is formed at the center of the first jig 2. By supplying pressurized air to the container 1, the container 1 is It can be pressurized from the inside.

  The second jig 3 has a partially spherical tip that engages with a recess 1b formed in the bottom of the container 1, and is rotatably supported around the axis x of the sandwiched container 1 as shown in the figure. It can be moved forward and backward in the direction of the axis x by a driving means such as an air cylinder that is not provided.

  The container 1 is supported by the first and second jigs 2 and 3 so as to be rotatable around the axis line x from both ends thereof.

  Above the first jig 2 and the second jig 3, a transfer foil 5 having an adhesive layer as a lower surface is stretched so as to be able to run in the front and back direction of the paper surface in FIG. The heat transfer roller 6 having a surface formed of an elastic layer such as heat-resistant silicone rubber can be driven and rotated in a posture parallel to the axis x of the container 1 and can be moved up and down in parallel as indicated by an imaginary line in FIG. Has been. In this embodiment, the thermal transfer roller 6 is moved up and down to be brought into pressure contact with the container 1. However, the container 2 sandwiched between the first and second jigs 2 and 3 is moved up and down to be brought into pressure contact with the thermal transfer roller 6. You may make it make it.

  The transfer apparatus according to this embodiment is configured as described above. Next, an example of the transfer process will be described with reference to FIG.

  (1) As shown in FIG. 4A, in the initial state, the thermal transfer roller 6 is waiting upward, and the second jig 3 is in the rear standby position, so that the first jig 2 and the second jig 2 The distance from the jig 3 is in a state of being separated from the length of the container 1.

  (2) In this state, the container 1 is held in a horizontal posture by, for example, the chuck mechanism 7 and is carried between the first jig 2 and the second jig 3, and thereafter, as shown in FIG. The chuck mechanism 7 moves forward (leftward in the figure), and the opening 1 a of the container 1 is inserted into the first jig 2.

  (3) Next, as shown in FIG. 4 (c), the second jig 3 advances forward and engages with the bottom of the container 1, and the container 1 is connected to the first jig 2 and the second jig 3. Are held in a horizontal posture between them, and thereafter, the chuck mechanism 7 releases the grip and retreats.

  (4) When the mounting of the container 1 is completed, as shown in FIG. 4D, pressurized air is supplied from the first jig 2 into the container 1 to increase the internal pressure to the set pressure, and the thermal transfer roller. 6 is lowered, the transfer foil 5 is pressed against the outer peripheral surface of the container 1 with an appropriate pressure, and the transfer layer such as a vapor deposition layer is transferred from the transfer foil 5 while the container 1 follows and rotates as the thermal transfer roller 6 rotates. Thermal transfer is performed on the outer peripheral surface of the container 1.

  In this case, as the container 1 rotates, the distance between the rectangular outer peripheral surface and the axis x of the container 1 repeatedly changes slightly, but the change is absorbed by the elastic deformation of the elastic layer of the thermal transfer roller 6. Even if the peripheral wall portion of the container 1 is softened by the heat transmitted from the thermal transfer roller 6, the internal pressure is increased by the supplied pressurized air, so that the peripheral wall portion of the container 1 is inward by the pressing of the thermal transfer roller 6. There is no deformation, and thermal transfer is performed by substantially uniform pressing over the entire circumference of the container.

  (5) When the thermal transfer to the entire outer peripheral surface of the container 1 is completed, the thermal transfer roller 6 is retracted and lifted, the processed container 1 is gripped by the chuck mechanism 7, and then the second jig 3 is moved backward. The processed container 1 held by the chuck mechanism 7 is removed from the first jig 2 and carried out.

  As described above, the container 1 having a rectangular cross-sectional shape is rotatably supported at both ends by the first and second jigs 2 and 3 and is stabilized around the axis line x by pressing of the thermal transfer roller 6. Thus, good thermal transfer is performed over the entire circumference while rotating, and the outer peripheral surface of the container 1 can be decorated with high quality.

(Other embodiments)
The present invention can also be implemented in the following forms.

  (1) As shown in FIG. 5, the concave portion 1b provided in the bottom of the container 1 may be formed by forming the entire bottom surface into a simple partial spherical surface, or, as shown in FIG. It is good also as the recessed part 1b hollow compared with the peripheral part, and what is necessary is just to make it convex so that the front-end | tip part of the 2nd jig | tool 3 may be fitted to the said recessed part 1b.

  (2) The present invention can also be applied to a regular polygonal container 1 having a number of angles of 12 or less, and particularly preferably implemented to a polygonal container 1 having a regular octagon or more as shown in FIG. Can do. Although it can be applied to a polygonal container having less than eight octagons, it is desirable that the corner portion of the outer peripheral surface has an R surface with a large curvature as the number of corners decreases.

  (3) When the container 1 is formed of a material or thickness that is not softened by heat during transfer, the pressurized air injection from the first jig 2 is not particularly required.

  (4) It is possible to provide a tapered hole that opens in the front end portion of the first jig 2 so that the cylindrical opening 1a of the container 1 is fitted and supported by the tapered hole.

  (5) In the present invention, the container 1 as a transfer object is not limited to a rectangular tube shape, but a cross-sectional shape such as an oval shape or an oval shape as well as a cylindrical shape with a circular cross-sectional shape. It can also be applied to non-circular cylindrical containers. For example, as shown in FIG. 8, in the container 1 having an oval cross-sectional shape, when the change in the distance between the outer peripheral surface of the container and the axis x of the container 1 exceeds the elastic allowable amount in the elastic layer of the thermal transfer roller 6, The position of the thermal transfer roller 6 or the container 1 may be controlled up and down in accordance with the rotational phase of the container 1.

DESCRIPTION OF SYMBOLS 1 Container 1a Opening part 1b Recessed part 2 1st jig | tool 3 2nd jig | tool 5 Transfer foil 6 Thermal transfer roller x axis line

Claims (6)

A method of transferring a transfer foil to the outer peripheral surface of a container,
The container is rotatably supported at both ends thereof, and the transfer foil is transferred to the outer peripheral surface of the container by rotating the outer peripheral surface of the container and the thermal transfer roller in a state of being pressed against each other via the transfer foil.
A transfer method characterized by the above. The container has a bottomed rectangular tube shape having an opening at one end and a bottom at the other end, and is rotatably supported around an axis of the rectangular tube.
The transfer method according to claim 1. An apparatus for transferring a transfer foil to the outer peripheral surface of a container,
A rotatable first and second jig for sandwiching the container from both ends thereof, and a thermal transfer roller;
By rotating the outer peripheral surface of the container that is rotatably held between the first jig and the second jig and the thermal transfer roller while being pressed against each other via the transfer foil, the transfer foil is moved to the container. Transfer to the outer surface,
A transfer device characterized by that. The container is a bottomed rectangular tube having an opening at one end and a bottom at the other end,
The first jig presses the opening of the container, and the second jig presses the bottom of the container, so that the container is rotatably held around the axis of the square tube.
The transfer device according to claim 3. A recess is formed in the bottom of the container, and the second jig engages and presses the tip of the recess.
The transfer device according to claim 4. Supplying pressurized gas into the container through the first jig to pressurize the container from the inside;
The transfer device according to claim 4 or 5.

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