JP2007021829A - Manufacturing method of vessel with pattern, and vessel with pattern obtained thereby - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a manufacturing method of a vessel with a pattern which enables close transfer of a colored pattern forming layer of a transfer film to an area in a recess of a vessel member, with a transfer surface pressed by linear contact, and the vessel with the pattern obtained thereby. <P>SOLUTION: This method is provided for manufacturing a compact vessel which has the recess 13a formed inside a cover body 13 made of a transparent plastic and has a colored pattern given to the bottom of the recess 13a so that it is seen through from outside. While the transfer film 3 having the colored pattern forming layer 2 laid on a base film 1 is positioned above the opening of the recess 13a of the cover body 13, a pressing implement 20 provided with a curved plane 21 curved in the shape of a circular arc so that it gets into the opening of the recess 13a from one end side to the other thereof sequentially is positioned above the transfer film 3. By lowering the pressing implement 20, the transfer film 3 is pressed against the bottom of the recess 13a, as an elastic sheet 22 stuck on the front side of the curved plane 21 of the implement is made to get into the opening of the recess 13a from one end side to the other sequentially, and thereby the colored pattern forming layer 2 is transferred. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a method for producing a patterned container in which a colored pattern imparted to an inner surface can be seen through from the outside, and a patterned container obtained thereby.

  It has been widely practiced to add value to a surface of a plastic container or the like by adding a colored pattern composed of letters, designs, and the like. As one of the methods, the colored pattern forming layer is formed by pressing a transfer film formed by applying or printing the colored pattern forming layer on the base film to the surface of the object to be patterned. Is transferred from the base film side to the target surface side.

  The following two methods are well known as the transfer method of the colored pattern forming layer by the transfer film. That is, first, as shown in FIG. 6, the first method is a transfer film 3 having a base film 1 and a colored pattern forming layer 2 (in practice, between the base film 1 and the colored pattern forming layer 2). A structure in which a release layer is provided and an adhesive layer is provided on the surface of the colored pattern forming layer 2 is generally described. A method in which transfer is performed by lowering and pressing a flat plate-shaped transfer disk 5 supported so as to be movable up and down vertically as indicated by an arrow in a state where the formation layer 2 is disposed so as to face the surface of the object 4. (See Patent Document 1 and the like).

Further, as a second method, as shown in FIG. 7, the transfer film 3 including the base film 1 and the colored pattern forming layer 2 is arranged so that the colored pattern forming layer 2 faces the surface of the object 4. In this state, the transfer roll 6 that is rotatably supported is lowered downward and pressed against the edge of the portion where the colored pattern forming layer 2 is provided, as indicated by an arrow, and then the transfer roll 6 is moved. In this method, transfer is performed by rolling along the surface of the object 4 while rolling (see Patent Document 2).
Japanese Utility Model Publication No. 3-84154 Japanese Utility Model Publication No. 4-71246

  According to the first transfer method, even if the transfer surface is a surface that is one step lower than the surrounding surface, the entire pressing surface of the transfer disk 5 is allowed to enter the transfer surface to reach the corner of the transfer surface. Although there is an advantage that the transfer film 3 can be pressed and transferred, a large pressure and high-temperature heating corresponding to the transfer area are required, so that the transfer device becomes large and an excessive load is applied to the object 4. There is a problem that deformation and distortion are likely to occur. In addition, since it is difficult to apply uniform pressure and heat to the entire transfer surface, there is also a problem that unevenness tends to occur in the obtained transfer pattern (colored pattern).

  On the other hand, in the second transfer method, the surface of the object 4 is pressed while rolling the transfer roll 6, so that the pressing portion becomes a line contact and the pressing pressure is small, and the heating temperature is also compared. Can be set low. Moreover, the entire transfer surface can be uniformly pressed and heated, and there is an advantage that the object 4 is not deformed or distorted. However, when the transfer surface is one step lower than the surrounding surface, the lower part of the transfer roll 6 hits the rising portion of the step in the very vicinity of the stepped portion, so that the transfer film 3 is placed to the corner of the transfer surface. There is a problem that it cannot be transferred by pressing.

  By the way, recently, in plastic molded products, it has become popular to use transparent (including translucent) plastics to make so-called “skeleton specifications”, and transparent plastics are also used in compact containers that contain cosmetics such as foundations. Proposed to be a container, and some have been implemented. However, the compact container is generally configured such that, for example, as shown in FIG. 8, a main body 11 provided with a cosmetic housing recess 10 and a lid 13 are rotatably connected by a hinge structure 12. A mirror 14 is stuck in the recess on the inner surface of the lid 13. For this reason, when the said cover 13 was made from transparent plastics, it turned out that the back surface of the mirror 14 stuck inside was seen through from the outer side of the cover 13, and on the contrary it worsened appearance.

  Therefore, the surface of the lid 13 on which the mirror 14 is attached is covered with an opaque colored pattern forming layer (including a single colored layer) so that the back surface of the mirror 14 cannot be seen through. In this case, it is considered that the transfer film 3 is used. However, since the lid 13 to which the mirror 14 is attached is relatively thin as shown in FIG. 9 which is a cross-sectional view thereof (a state excluding the mirror 14), the transfer is performed by the first method. Then, there is a possibility that damage or distortion may occur due to excessive load on the lid 13. Further, when the transfer is performed by the second method, the surface 13a of the lid 13 to which the mirror 14 is attached is lowered by one step from the surrounding surface, so that the transfer film 3 is transferred to the corner of the transfer surface. There is a problem in that it cannot be transferred by pressing, and the corners of the corner cannot be covered with the colored pattern forming layer 2.

  The present invention has been made in view of such circumstances, and allows the colored pattern forming layer of the transfer film to be transferred into the recess of the container member without any gap while pressing the transfer surface by line contact. The object is to provide a process for producing a patterned container and a patterned container obtained thereby.

  In order to achieve the above object, according to the present invention, at least a part of members constituting a container is made of a transparent plastic member, and the periphery is surrounded by a step having a height of 0.1 mm or more inside the transparent container member. In which a colored pattern is applied to the bottom surface of the concave portion so that the concave portion can be seen through from the outside, and the inner periphery has a step with a height of 0.1 mm or more. A transparent container member formed with an enclosed recess is prepared, and a transfer film in which a colored pattern forming layer is laminated on a base film is positioned above the recess opening of the container member, and above the transfer film. , Positioning a pressing jig provided with a pressing surface that is curved in an arc shape so as to sequentially enter from one end side to the other end side of the recess opening, and lowering the pressing jig to press the arc-shaped pressing A first summary of a method for producing a patterned container in which a colored pattern forming layer is transferred to a bottom surface of a concave portion by pressing a transfer film against the bottom surface of the concave portion while sequentially inserting a surface from one end side to the other end side of the concave portion opening. And

  In addition, the present invention includes, in particular, an elastic sheet in which the arc-shaped pressing surface is affixed along a curved surface of a rigid pressing member that is curved in an arc shape, and the thickness of the elastic sheet However, the second gist is a method for producing a patterned container which is set to be 0.3 to 5 mm thicker than the height of the recess step of the container member, and in particular, the surface hardness of the elastic sheet is 85 to 95 °. The manufacturing method of the container with a pattern set to 3 is set as the 3rd summary.

  And this invention makes the 4th summary the patterned container obtained by the manufacturing method of the patterned container which is either the said 1st-3rd summary.

  That is, according to the method for producing a patterned container of the present invention, when a colored pattern forming layer is transferred from the transfer film into the inner concave portion of the container member, a pressing jig having a special pressing surface curved in an arc shape is used. Therefore, the colored pattern forming layer can be transferred to the corners of the transfer surface while pressing the transfer surface by line contact. Accordingly, an uncolored transparent portion is not left at the edge of the bottom surface of the concave portion, and a container in which a very beautiful colored pattern is formed can be obtained. In addition, in the case where it looks bad when the contents are shown, the portion can be completely covered from the inside by the colored pattern forming layer, so that even if a transparent container member is used, the appearance may deteriorate. There is no.

  And the said arc-shaped pressing surface is comprised with the elastic sheet stuck along the curved surface of the rigid pressing member curved in a circular arc shape, and the thickness of the said elastic sheet is more than the recessed level | step difference of a transparent container member. When the thickness is set to 0.5 to 1 mm, a more beautifully finished container with a pattern can be obtained.

  Further, when the surface hardness of the elastic sheet is set to 85 to 95 °, the pressing effect by the arc-shaped pressing surface constituted by the elastic sheet becomes particularly excellent, and the finish is even more beautiful. A patterned container can be obtained.

  Next, the best mode for carrying out the present invention will be described.

  First, a transparent plastic container member is prepared as at least a part of members constituting the container. The above “at least part of members constituting the container” refers to, for example, the lid 13 in the compact container shown in FIG.

  The term “made of transparent plastic” as described above includes the case of being made of a translucent plastic, and is “transparent” as long as the back side can be seen with the naked eye. The plastic does not need to be colorless and transparent, and may be a transparent plastic that has been colored in some way. In addition, if the kind of plastic used as the material of a container member is conventionally used for the plastic container, it will not specifically limit.

  In addition, the container member must have a concave portion surrounded by a step having a height of 0.1 mm or more on the inner side. This is because a colored pattern is imparted to the bottom surface of the recess, which is a great feature of the present invention. If the step is less than 0.1 mm, the step is almost flat, and the transfer using the transfer roll 6 (see FIG. 7) that has been conventionally used can transfer a colored pattern that is almost satisfactory. .

  Next, as an embodiment of the present invention, in the compact container shown in FIG. 8, the coloring pattern of the transfer film is formed in the recess 13a (see FIG. 9) for attaching the mirror 14 inside the back surface of the lid 13. An example of transferring a layer will be described in detail.

  First, the lid body 13 is placed and fixed on a placement table 30 of a transfer apparatus having a pressing jig 20 as shown in FIG. The pressing jig 20 is made of metal, and the pressing surface is a curved surface 21 that is curved in an arc shape so that the contour viewed from the side surface is a quarter circle, and further, at the center of the curved surface 21. An elastic sheet 22 having a planar shape that enters the recess 13a opening of the lid 13 to be transferred without excess or deficiency is attached.

  The elastic sheet 22 is made of a silicon rubber sheet having a thickness of 2 mm, and its surface hardness is set to 90 °.

  The pressing jig 20 is connected to a drive unit (not shown) via a connecting member 23 attached to the upper part thereof, and can be moved up and down in an up-down direction, and has an arc-shaped curved surface 21. With the center point O as the center, the curved surface 21 can rotate in the circumferential direction up to 90 °. In addition, when the pressing jig 20 rotates, the position of the center point O is shifted in the left-right direction, and the contact portion between the elastic sheet 22 and the lid 13 on the curved surface 21 is parallel to the left-right direction. It is supposed to move.

  In the initial state, the pressing jig 20 has one end edge 22a of the elastic sheet 22 adhered to the curved surface 21 at the lowest position, and directly above the one end edge 13a 'of the opening of the recess 13a. It is positioned so that it

  In this initial state, the transfer film 3 is supplied horizontally above the lid 13 so that the colored pattern forming layer 2 is positioned directly above the opening of the recess 13a of the lid 13 as shown in FIG. Position. Then, the pressing jig 20 is lowered from above, so that the one end edge 22a of the elastic sheet 22 on the curved surface 21 presses the one end edge 13a 'of the recess 13a as shown in FIG. At this time, the pressing force and the surface temperature by the curved surface 21 are set to predetermined values, and the values are kept constant during the following series of pressing operations.

  As indicated by the arrows, the pressing jig 20 is rotated about the center point O, and the center point O is moved from the right to the left in the drawing, so that the elastic sheet 22 on the curved surface 21 is obtained. The transfer film 3 is moved to the position shown in FIG. 3 while being pressed along the bottom surface of the recess 13a. As a result, the other end edge 22b of the elastic sheet 22 is pressed against the other end edge 13a ″ of the recess 13a, and the transfer of the colored pattern forming layer 2 by a series of pressing operations is completed.

  Therefore, the pressing jig 20 is raised and returned to the initial position shown in FIG. 1, and the lid 13 is taken out. When the transfer process is repeated continuously, a new lid 13 is placed, and the transfer film 3 is run a predetermined distance to remove the transferred portion from the transfer device. The new part provided with the colored pattern forming layer 2 is positioned on the newly placed lid 13. Thereafter, the same process is repeated.

  As shown in FIG. 4 and FIG. 5 which is a plan view of the lid body 13 obtained from above, the lid 13 thus obtained has a colored pattern forming layer transferred from the transfer film 3 to the entire bottom surface of the recess 13a. 2 is formed, and the inside of the recess 13a is completely opaque up to the corners.

  Therefore, even if the transparent plastic compact container using the lid 13 has a mirror 14 (see FIG. 8) attached to the inside of the lid 13, the back surface of the mirror 14 can be seen through from the outside. There is no beautiful appearance.

  In the above example, the pressing jig 20 may be of any type as long as it rolls the curved surface 21, and a commercially available transfer device can be used. In the above example, the lid body 13 is positioned and fixed on the mounting table 30, the pressing jig 20 is lowered from above, and the elastic sheet 22 on the curved surface 21 is recessed by applying the rotating and lateral movement operations. 13a is inserted and rolled, but the pressing jig 20 is provided with only the raising and lowering operation and the rotating operation, and moves laterally while the lid 13 is pressed during the rotating operation. There is no problem even if it comes to do. Furthermore, the rotation angle of the pressing jig 20 and the angle forming the arc of the curved surface 21 are not limited to 90 ° but can be set to appropriate angles.

  In the above example, the pressing force and the heating temperature by the pressing jig 20 are not particularly limited, and are set to appropriate values according to the transfer conditions required by the transfer film 3, but the pressing surface is linear. Since contact occurs, sufficiently good transfer can be performed even if the value is set to a relatively low value. Accordingly, the load on the member itself of the lid 13 is small, and no damage or distortion occurs. In particular, as in the above example, when the member to be transferred is a thin molded product (for example, a molded product having a thickness of 5 mm or less), the effect is remarkable.

  Furthermore, in the above example, the material of the elastic sheet 22 to be adhered to the curved surface 21 of the pressing jig 20 is not particularly limited, but must be able to withstand the load and heating during pressing, Silicon rubber or the like is suitable. And it is preferable that the surface hardness is 85-95 degrees.

  When the transfer is performed with only the elastic sheet 22 entering the recess 13a as in the above example, the shape of the elastic sheet 22 is the bottom shape of the recess 13a to which the transfer film 3 is to be colored. Must match. That is, the elastic sheet 22 has to enter the recess 13a and the transfer film 3 must be pressed to every corner of the bottom surface of the recess 13a. For the same reason, the thickness of the elastic sheet 22 must be set higher than the height of the step surrounding the transfer surface, and in particular, it is preferable to set the thickness to be 0.3 to 5 mm thicker than the height of the step. is there.

  When the entire curved surface 21 of the pressing jig 20 enters the recess 13a, the thickness of the elastic sheet 22 is not particularly limited. The entire pressing jig 20 may be formed of an elastic member such as rubber.

  And this invention is applicable not only to a compact container but what kind of container. However, a concave portion surrounded by a step of 0.1 mm or more is formed inside the target container member, and the colored pattern must be transferred to the bottom surface of the concave portion.

  The colored pattern forming layer to be transferred may be formed with a color pattern composed of a plurality of colors or may be composed of a single color. The colored pattern forming layer may be formed of ink or may be formed of metal foil or the like.

It is explanatory drawing of one Example of this invention. It is explanatory drawing of one Example of this invention. It is explanatory drawing of one Example of this invention. It is sectional drawing which shows the cover body in which the colored pattern was transcribe | transferred by the said Example. It is the top view which looked at the above-mentioned lid from the top. It is explanatory drawing of the conventional transfer method. It is explanatory drawing of the other conventional transfer method. It is explanatory drawing of a general compact container. It is sectional drawing which shows the cover body of the said compact container.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Base film 2 Colored pattern formation layer 3 Transfer film 13 Cover body 13a Recess 20 Pressing jig 21 Curved surface 22 Elastic sheet

Claims (4)

  At least a part of the member constituting the container is made of a transparent plastic member, and inside the transparent container member, a recess surrounded by a step having a height of 0.1 mm or more is formed, and the bottom surface of the recess is colored. A method for producing a container having a pattern and visible from the outside, wherein a transparent container member having a recess surrounded by a step having a height of 0.1 mm or more is formed on the inside. And positioning a transfer film in which a colored pattern forming layer is laminated on a base film above the recess opening of the container member, and from one end side of the recess opening to the other end side above the transfer film. Position the pressing jig provided with a pressing surface that is curved in an arc shape so as to enter sequentially, and lower the pressing jig so that the arc-shaped pressing surface moves from one end side to the other end side of the recess opening. By pressing the bottom surface of the recess of the transfer film while sequentially enter, preparation of textured container, characterized in that the colored pattern forming layer so as to transfer the recess bottom.   The arcuate pressing surface is composed of an elastic sheet pasted along the curved surface of a rigid pressing member that is curved in an arcuate shape, and the thickness of the elastic sheet is less than the height of the concave step of the container member. The method for producing a patterned container according to claim 1, wherein the thickness is set to be 3 to 5 mm thick.   The process for producing a patterned container according to claim 2, wherein the elastic sheet has a surface hardness of 85 to 95 °.   A patterned container obtained by the process for producing a patterned container according to any one of claims 1 to 3.

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