KR101614757B1 - A manufacturing method of product with three-dimensional printed face - Google Patents

Abstract

The present invention relates to a method of manufacturing a semiconductor device, comprising: preparing an envelope; A step of forming a printing surface having an arbitrary shape on one surface of the envelope; Preparing a mold provided with an engraved cavity corresponding to a printing surface formed on an outer shell; Placing one side of the envelope in the mold so that the printed side of the envelope faces the depressed cavity; Placing a molding plate having a certain thickness on the other surface of the outer shell placed in the mold; Applying an external force to the upper surface of the molding plate to mold the printed surface of the sheath into the recessed cavity shape of the mold; The present invention also provides a method for producing a product having a three-dimensional printed surface including the three-dimensional printed surface.

Description

BACKGROUND OF THE INVENTION 1. Field of the Invention [0001] The present invention relates to a method of manufacturing a product having a three-

The present invention relates to a method of manufacturing a product having a stereoscopic printed surface, and more particularly, to a method of manufacturing a product in which a printed surface itself, which is formed of shapes and patterns of various colors, It is about how you can do it.

In various kinds of products such as clothes, shoes, wallpaper, and the like, patterns and patterns made of various colors are expressed as means for adding aesthetics. One of the traditional ways to express various shapes and patterns on one side of the product is printing. Printing is a method of transferring a shape or pattern to be expressed using ink to one side of a product, and is divided into gravure, decal comania, and screen according to the concrete execution method.

Such printing has been applied to various industrial fields for a long time due to the fact that various shapes of colors or patterns can be easily expressed on one side of a product and the same shape or patterns can be continuously displayed on a product. However, most of the printing techniques known so far are capable of forming a flat printing surface on one surface of a flat product, and it is practically impossible to form a three-dimensional printing surface on one surface of the product.

For this purpose, various methods of representing three-dimensional patterns by engraving patterns of a predetermined depth on one surface of a roller, filling each of the engraved patterns with ink, and transferring the ink onto one surface of the product, as disclosed in Korean Patent No. 1121976, have been proposed. However, these techniques are not different from those of the conventional printing technique in that they are ink of a certain thickness, not the pattern itself in a three-dimensional shape, which is expressed on one side of the product. Moreover, most of what can be realized by these techniques is limited to simple patterns in which a certain shape or patterns are repeated in succession to satisfy various needs of consumers.

An example of another technique for realizing a product provided with a stereoscopic printing surface is disclosed in Korean Patent Publication No. 2002-0078686. The basic feature of this technique is that a printed surface is directly bonded to one side of a three- Is to implement products. In contrast to conventional printing techniques in which a random pattern or pattern is directly transferred onto one side of a product, this technology basically combines a flat print surface with a product made in a three-dimensional shape to finally complete a product with a three- There is a difference. However, this technique does not form a pattern or a shape having a three-dimensional shape on one side of the product, but rather a method in which a flat printed side is simply bonded to one side of a three-dimensional product, It is hard to see.

Korean Patent No. 1121976, Korean Patent Publication No. 2002-0078686

SUMMARY OF THE INVENTION The present invention has been made in order to solve the above-mentioned problems, and an object of the present invention is to provide a method of manufacturing a product in which a print surface itself, which is made of various shapes and patterns of colors, .

In order to achieve the above-mentioned object, the present invention provides a method of manufacturing a semiconductor device, A step of forming a printing surface having an arbitrary shape on one surface of the envelope; Preparing a mold provided with an engraved cavity corresponding to a printing surface formed on an outer shell; Placing one side of the envelope in the mold so that the printed side of the envelope faces the depressed cavity; Placing a molding plate having a certain thickness on the other surface of the outer shell placed in the mold; Applying an external force to the upper surface of the molding plate to mold the printed surface of the sheath into a recessed cavity shape of the mold; Separating an envelope having a printing surface molded in a recessed cavity shape of the mold from the mold; Introducing a non-foamable synthetic resin into the mold in an amount larger than the intaglio cavity volume; Releasing the synthetic resin molding body from the mold when the synthetic resin molten material is filled in the recessed cavities of the mold in a state in which the mold is pressed, releasing the pressure of the mold and opening the synthetic resin molding body; Placing an outer shell and a synthetic resin molded body in a mold so that the printed surface of the outer shell and the molded portion of the molded resin molded article are positioned in the recessed cavity of the mold; Molding the mold in a pressurized state to integrate the one surface portion of the synthetic resin molded article with the outer surface; And the present invention is characterized in that it includes the technical features.

The envelope may be made of either a fabric or a synthetic resin sheet.

The printing surface may be formed by printing on a screen, or may be formed by transferring a transfer sheet provided with a printing surface of an arbitrary shape.

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On the other side of the synthetic resin molded article placed on the upper surface of the envelope, an inner skin can be further placed.

At this time, the synthetic resin molded body may be formed of only the molded portion formed by the recessed cavity of the metal mold.

Further, the present invention provides a method of manufacturing a semiconductor device, comprising: preparing a shell; A step of forming a printing surface having an arbitrary shape on one surface of the envelope; Preparing a mold provided with an engraved cavity corresponding to a printing surface formed on an outer shell; Placing one side of the envelope in the mold so that the printed side of the envelope faces the depressed cavity; Placing a molding plate having a certain thickness on the other surface of the outer shell placed in the mold; Applying an external force to the upper surface of the molding plate to mold the printed surface of the sheath into a recessed cavity shape of the mold; Separating an envelope having a printing surface molded in a recessed cavity shape of the mold from the mold; Injecting a larger amount of foamable synthetic resin into the mold than the intaglio cavity; Releasing the pressing of the mold between the time when the synthetic resin is crossed through the softening point in the state where the mold is pressed, releasing the mold, and releasing the molded synthetic resin formed in the recessed cavity shape; Placing an outer shell and a synthetic resin molded body in a mold so that the printed surface of the outer shell and the molded portion of the molded resin molded article are positioned in the recessed cavity of the mold; Heating the mold in a pressurized state to crosslink the synthetic resin molding; Releasing the pressure, opening the mold, and foaming the crosslinked synthetic resin molding in a state of being in contact with each of the shell and the inner shell; And other technical features.

On the other side of the synthetic resin molded article placed on the upper surface of the envelope, an inner skin can be further placed.

The synthetic resin molded body integrated with the inner film may be formed of only a molded part formed of a recessed cavity of a metal mold.

The present invention uses a conventional printing technique to form a printed surface in a plane of arbitrary shape or pattern of various colors on one side of a product and then convert the printed surface of the plane into a three- Thereby making it possible to easily produce a product having a three-dimensional printed surface which can not be realized by conventional printing techniques.

Further, the present invention proposes a method of integrating a molded article or a foam having a certain hardness inside a product of a three-dimensional printed surface with the product itself, thereby improving the durability of stably maintaining the outline of the three- The advantage of being able to manufacture products is expected.

Each of Figs. 1A to 1D is a schematic process diagram for manufacturing a product having a three-dimensional printed surface according to one embodiment of the present invention.
Each of Figures 2A-2D is a schematic process diagram of embodiments that may be added to the embodiment of Figure 1.
Each of Figures 3A-3B is a schematic process diagram of another embodiment that may be added to the first embodiment of Figure 1;
Each of Figures 4A-4C is a schematic process diagram of another embodiment that may be added to the embodiment of Figure 1;
Figure 5 is a schematic process diagram of another embodiment that may be added to the embodiment of Figure 1;
Each of Figures 6A-6D is a schematic process diagram of another embodiment that may be added to the embodiment of Figure 1;
Each of Figures 7A-7B is a schematic process diagram of another embodiment that may be added to the embodiment of Figure 1;
8A-8C are schematic process diagrams of another embodiment that may be added to the embodiment of FIG.
Figure 9 is a schematic process diagram of another embodiment that may be added to the embodiment of Figure 1;

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the present invention will now be described in detail with reference to the accompanying drawings. However, the present invention is not limited to the technical features of the present invention, A detailed description thereof will be omitted.

Each of Figs. 1A to 1D shows a schematic process diagram for manufacturing a product having a three-dimensional printed surface according to the present invention. Hereinafter, each manufacturing step of a product having a three-dimensional printing surface will be described in detail.

First, the envelope 10 is prepared (Fig. 1A). The envelope 10 may be formed of any one of a woven fabric or a synthetic resin sheet as a part exposed to the outside in the final product provided with a printing surface to be described later. The fabric may be made of a structure and a structure capable of being penetrated or impregnated with molten synthetic resin in a process to be described later. The synthetic resin sheet may have a film structure having a certain thickness such as a fabric.

When the envelope is prepared, a printing surface 20 having an arbitrary shape is formed on one surface of the envelope 10 as shown in Fig. 1B. The printed surface may be printed or formed by a screen, or may be formed by transferring a transfer sheet provided with a print surface of an arbitrary shape. Since the envelope itself is flat, the printed surface can be formed in a variety of colors, as well as a shape or pattern of intended designs. The transfer using the screen printing and transfer paper is well known in the related art and will not be described in detail.

When a printing surface is formed on one surface of the envelope, a metal mold 1 having an engraved cavity 3 corresponding to the printing surface 20 formed on the envelope as shown in Fig. 1C is prepared (Fig. 1C). The engraved cavity 3 of the mold 1 is for projecting the printed surface 20 of the envelope into a three-dimensional shape. The edge of the engraved cavity 3 of the metal mold 1 coincides with the edge of the printed surface 20 of the envelope. It is preferable to be constructed so as to be able to do so.

When the mold is prepared, one surface of the envelope 10 is placed on the mold so that the printed surface 20 of the envelope faces the recessed cavity 3 of the metal mold, and the other surface of the envelope 10, The molding plate 7 having a large thickness is placed. In this state, an external force is applied to the upper surface of the molding plate 7 to form the printing surface 20 of the envelope 10 into the shape of the negative depression cavity 30 of the mold 1 when the molding plate is positioned on the upper surface of the envelope. 2 is a mold lid including a press.

The molding plate 7 is a means for pushing the printing surface 20 of the envelope 10 into the recessed cavity 3 of the mold by an external force acting thereon. In order to easily push the printing surface 20 of the envelope 10 into the recessed cavity 3 of the mold 1 by the pressure externally applied, It is preferable that the thickness is at least larger than the depth of the deepest recessed cavity in the recessed cavity 3. [

However, this is merely an example of a molding plate. After a press mold provided with a separate embossed protrusion corresponding to the recessed cavity of the mold is prepared, the press surface of the envelope is pressed by using a press mold provided with embossed protrusions, But the present invention is not limited to any specific configuration of the molded plate that solidifies the printed surface of the envelope into the recessed cavity shape of the metal mold.

When the printed surface of the envelope is formed into the recessed cavity shape of the mold due to the action of the molding plate, the printed surface of the envelope is converted into a three-dimensional shape as shown in Fig. That is, the molding surface 12 is formed in the envelope 10 in the shape of a recessed cavity 3 of the mold. The printing surface 20, which is originally printed in a plane on the envelope 10, The molded printing surface 22 of the three-dimensional structure is correspondingly shaped. The basic process according to the present invention is completed when the plane printed on the envelope is realized as a molded printing surface of a three-dimensional structure.

That is, the present invention is applicable not only to a direct printing on a product having a three-dimensional structure or a three-dimensional structure printing on a flat product in forming a three-dimensional printing surface, but also to a printing method The three-dimensional printing method using the mold in which the cavity is formed is used, so that the stereoscopic printing which can not be easily realized conventionally can be performed more conveniently, and the present invention can be widely applied without limitation to the form of the printing surface There is an advantage.

On the other hand, if a stereoscopic printing surface is formed by a molding operation using a mold, a means for maintaining the shape of the stereoscopic printing surface while stably supporting the design realized by the stereoscopic printing surface is required. 1d is a filler which is one of these means. This is filled in the molding surface 12 of the envelope 10 so that the molded plate used in the pressure molding step can be appropriately cut and used. However, the present invention is not limited to the above- The following embodiments are proposed which can be added.

One of the additional embodiments uses a non-expandable synthetic resin molded article, and a schematic example thereof is disclosed in each of FIGS. 2A to 2D. First, a mold 1 having the configuration as shown in FIG. 2A is prepared. The metal mold 1 is provided with a recessed cavity 3 which is used for forming the molding surface 12 of the envelope 10 (Formed by the printing surface 22).

Next, a synthetic resin made of any color and material is injected into the mold. The synthetic resin to be injected into the mold is preferably a non-foamable synthetic resin composed of a thermoplastic synthetic resin. Such a non-expandable thermoplastic synthetic resin which can be molded into a predetermined shape by using a mold is widely known in the related art, and thus a detailed description thereof will be omitted.

The following two methods can be applied to the method of applying the synthetic resin to the mold. One of them is to directly place the synthetic resin in the recessed cavity in the state that the mold is opened. In this case, the synthetic resin used is a solid phase such as pellet, sheet or the like. The other is to fill the recessed cavity with a liquid synthetic resin by using a device such as a material injector in a state of closing the mold.

However, even if the synthetic resin is injected into the mold using a certain method, the amount of the synthetic resin to be injected is preferably larger than the volume of the entire recessed cavity of the mold. The reason why the present invention proposes such a configuration is that the synthetic resin can be completely filled in all of the recessed cavities, especially when the depth of the recessed cavities is thin or complicated.

When a larger amount of synthetic resin is injected into the mold than the cavity space volume of the mold, the mold is sealed so that the inserted synthetic resin does not flow over the mold, and the synthetic resin is molded by heating the mold under a certain pressure. In order to shorten the curing time of the synthetic resin even when the synthetic resin is injected in a state where the mold is closed and the synthetic resin is injected in the solid state, it is preferable that the closed mold is heated to a predetermined temperature.

When heat is continuously applied to the mold, the synthetic resin is melted through the softening temp., And is first filled in the recessed cavity of the mold having a predetermined depth to be formed into the recessed cavity shape, Is placed on the periphery and surface of the concave cavity, which is a space other than the concave cavity. That is, the surplus of the synthetic resin supplied over the volume of the cavity is deviated from the negative oblique boundary of the mold.

When the synthetic resin enters at a certain time when the synthetic resin melts past the softening point, the pressurization of the mold is released and the mold is temporarily opened. The opening time of the mold can be arbitrarily selected from the point of time when the synthetic resin is changed into a viscous material which starts to melt past the softening point by heat or a point when the synthetic resin is changed into a molten liquid after melting temp. have.

In the case where the synthetic resin to be injected into the mold is a liquid rather than a solid phase, since the synthetic resin is in a liquid state having a predetermined viscosity, it is obvious that the opening time of the mold must be different from the case where the synthetic resin is solid. In this case, the individual characteristics of the liquid synthetic resin to be injected into the mold, the temperature of the mold, and the like should be appropriately determined.

When the mold is opened through this step, the synthetic resin injected into the mold is molded into the synthetic resin molding body 30 provided with the molding portion 31 formed in the recessed cavity 3 of the mold. That is, since a greater amount of synthetic resin is injected than the intaglio cavity volume of the mold, the surplus synthetic resin remaining after filling all the recessed cavities of the mold floats around the recessed cavity and remains around the molded part 31. The schematic state of this state is similar to that of Fig. 2B described above.

After the synthetic resin molded body is formed, the synthetic resin molded body is demolded from the mold, and then the envelope 10 and the synthetic resin molded body 30 are placed in the mold 1 as shown in FIG. 2C. In the recessed cavity of the mold, the molding printing surface 22, the outer molding surface 12, and the molding portion 31 of the synthetic resin molding are placed in order.

Next, the mold is cooled and molded in a pressurized state. 2d, the one surface portion including the forming portion 31 of the synthetic resin molded body 30 is integrated with the outer surface 10 and is formed on one surface of the molding surface 12 of the outer surface 10 The molded printing surface 22 can be stably supported by the molding portion 31 of the synthetic resin molding having a predetermined hardness and the three-dimensional effect can be expressed more prominently. The time and cooling degree required in the cooling molding step are preferably determined in consideration of the characteristics of the synthetic resin molding and the sheath.

Another example of the additional embodiment constituting the filler with the non-foamable synthetic resin is a constitution in which another endothelium is further prepared and the other side of the synthetic resin molding used as the filler is wrapped around the inner skin. An example of this is shown in Figures 3a and 3b. This embodiment is different from the above-described additional embodiments in that the synthetic resin molded article is integrated with the endothelium to be made of a filler.

That is, in the above-mentioned additional embodiment, when the synthetic resin molded body is molded (FIG. 2B), another synthetic resin molded body is prepared without removing it from the mold, and then placed on the upper surface of the synthetic resin molded body. In this case, as shown in Fig. 3A, one surface portion of the synthetic resin molded body including the molded portion 31 of the synthetic resin molded body 30 faces a portion of the recessed cavity 3 of the metal mold, and the other surface portion of the synthetic resin molded body 30 And faces one side of the endothelium 40.

The endothelium may be composed of any one of a fabric or a synthetic resin sheet, and the above description of the envelope may be applied as it is. In this state, when the mold is pressurized and cooled, the one surface portion of the synthetic resin molded body 30 is integrated with the shell 10 and the other surface portion of the synthetic resin molded body 30 is integrated with the inner surface 40 as shown in FIG. 3B.

Therefore, the synthetic resin molded article can be safely isolated from the outside environment and safely protected, and even if the synthetic resin molded article itself is partially damaged, it is not exposed to the outside. The degree to which the cooling molding is progressed is preferably determined in consideration of each characteristic of the synthetic resin and the endothelium used, not to be determined uniformly.

2C is a further embodiment of the filling material of the non-expandable synthetic resin. In the step of Fig. 2C described above, the envelope 10 and the synthetic resin molding body 30 are placed in the mold 1, Is simply added, and then both of them are cooled and molded at the same time. In the cooling molding process, the one surface portion and the other surface portion of the synthetic resin molded article are integrated with the outer surface and the endothelium, respectively, so that a product having the structure as shown in FIG. 3B is finally formed.

Another of the additional embodiments constituting the filler made of the non-foamable synthetic resin is that when the filler is constituted by using the synthetic resin molding body integrated with the inner skin, the synthetic resin molding body integrated with the inner skin comprises only the molding portion formed in the recessed cavity shape of the metal mold An example of this is shown in Figs. 4A to 4C, respectively.

First, as shown in FIG. 4A, the remaining portion 32 (FIG. 4A) of the synthetic resin formed body 30 in a molten state except for the molded portion 31 is removed by using a separate removing means 5 while keeping the mold 1 at a predetermined temperature. ). The removing means 5 may be made by means of a knife having a constant width. Removal of an unnecessary portion may be achieved by cooling the mold to convert the molten synthetic resin molding to a solid state and then removing it as a heated removal means. In this case, a device capable of being heated to a temperature not lower than the lowest softening point of the material may be added to the end of the removing means.

When the unnecessary portion is removed from the synthetic resin molded body and only the molded body remains, the inner body 40 is placed as shown in FIG. 4B and then cooled to mold the molded portion 31 of the synthetic resin molded body with the inner body 40 to demold. Next, the mold and the inner skin integrally formed with the molded part of the synthetic resin molded article are placed in order and subjected to cooling molding to produce a product as shown in Fig. 4C. 4C, the product to be embodied according to the present invention is formed on the molding surface 12 of the sheath 10 so that only the molding portion 31 of the synthetic resin molding is integrated, ) Can be more conspicuous.

In this additional embodiment of the present invention, when an unnecessary portion is removed from the synthetic resin molded body and only the molded body is left, the molded body is demolded from the mold, the molded body of the synthetic resin molded body, The case where the mold is sealed and both of them are simultaneously cooled and molded are not excluded. It is obvious that the structure of the product implemented in this manner is the same as that in Fig. 4C.

However, in these additional embodiments, only the molded part of the synthetic resin molded article is used, and thus there exists a portion where the inner skin and the outer skin directly contact each other. In this case, if the adhesive treatment is applied to at least one of the inner surface and the outer surface, the inner skin and the outer skin may be more tightly bonded during the cooling molding process. In the other additional embodiments described later, such a pre-bonding treatment step may be added when the inner skin and the outer skin directly contact each other.

Another constituent embodiment using only the molded part formed in the recessed cavity shape of the mold among the synthetic resin molded articles integrated with the inner skin in the case of constructing the filler made of the non-expandable synthetic resin with the synthetic resin molding including the inner skin may be as shown in FIG.

In this additional embodiment, as shown in Fig. 2B, when the molding portion 31 corresponding to the engraved cavity of the mold is molded in the molten synthetic resin molding body 30, the synthetic resin molding body 30 is demolded, The molding part 31 of the synthetic resin molding is integrated with the inner film 40 and the remaining part 32 of the synthetic resin molding is removed.

The work related to this can be easily realized by using a cutting metal such as a high-frequency mold, which is well known in the related art, and a detailed description thereof will be omitted. The work after this step may be applied as it is or partially changed, and the structure of the product implemented according to this additional embodiment is the same as that in Fig. 4C.

In addition, the present invention does not exclude the use of a foamed synthetic resin as a filler in the formation of a filler. These additional embodiments are characterized in that the above-mentioned additional embodiments use a filler made by molding a non- There is a difference. Hereinafter, additional embodiments for constructing a filler using a foamable synthetic resin will be described.

A specific example of the additional embodiment for constituting the filler using the expandable synthetic resin is shown in each of Figs. 6A to 6D. First, as shown in FIG. 6A, a metal mold 1 having an arbitrarily shaped recessed cavity 3 on the inner surface thereof is prepared. The mold used in this additional embodiment is substantially the same as that of the above-described additional embodiments. When the mold is prepared, a larger amount of synthetic resin is injected into the mold than the entire volume of the concave portion of the mold. The insertion of the synthetic resin into the mold can be made much as in the case of the above-mentioned additional embodiments.

However, since the synthetic resin to be used in this additional embodiment is a synthetic resin foam, the synthetic resin to be injected into the mold includes a base resin, a crosslinking agent, a foaming agent, and a pigment, filler, Can be in the form of a mixture. Herein, the base resin may be composed of any one selected from various kinds of synthetic polymers that can be used in the related industry or for that purpose. That is, it may be made of any material that can form a foam through crosslinking and foaming which will be described later.

When the synthetic resin is put into the mold, the mold is sealed, and then the mold is heated while being pressurized at a constant pressure. When the mold is continuously heated, the synthetic resin is melted through the softening point and is first filled in the recessed cavity of the mold having a predetermined depth, and the remaining molten molding material is supplied to the recessed cavity peripheral portion And on the surface.

When the molding material enters a certain point at which the molding material melts past the softening point, the pressurization of the mold is released and the mold is temporarily opened. The opening timing of the mold may vary depending on the characteristics of the molding material put into the mold, and may be a time point when the molding material changes from a melting point to a viscous body, where the molding material starts to melt past the softening point, And the liquid state of the completely molten liquid in the pre-stage. However, in this embodiment, since it is the foamable synthetic resin that is injected into the mold, the opening timing of the mold can be made different from the above embodiment.

In the case where the synthetic resin to be injected into the mold is a liquid rather than a solid phase, the synthetic resin is in a liquid state having a predetermined viscosity, so that the opening time of the mold must be different from the case where the synthetic resin is solid It is obvious. In this case, the individual characteristics of the liquid synthetic resin to be injected into the mold, the temperature of the mold, and the like should be appropriately determined.

When the mold is opened, as shown in FIG. 6B, the synthetic resin injected into the mold is formed into a synthetic resin molded body 35 provided with a molding portion 36 formed in the shape of a recessed cavity 3 of the mold. Since the amount of the synthetic resin is larger than the intaglio volume of the mold, excess synthetic resin remaining after filling all negative concave cavities of the mold floats around the concave cavities and remains around the molding portion.

When the synthetic resin molded product is molded into the recessed cavity shape of the mold, the synthetic resin molded product is demolded from the mold, and the envelope 10 and the synthetic resin molded product 35 are placed in the mold 1 as shown in FIG. 6C and the mold is sealed. The molding surface 12 of the envelope 10 and the molding printing surface 22 and the molding portion 36 of the synthetic resin molding body 35 are located in the recessed cavity 3 of the mold.

When the envelope and the resin molded article are placed in the mold, the mold is sealed and heat is applied in that state. When the heat is applied, the synthetic resin molded article begins to be crosslinked. At this time, not only the synthetic resin molded article is crosslinked itself, but each part of the synthetic resin molded article which is in contact with the envelope penetrates into the surface of the envelope and the inside of the envelope.

When the corresponding part of the molded resin article penetrates into the surface of the outer shell and the inner structure and is integrated, the pressing is released and the mold is quickly opened when the crosslinking is completed. The synthetic resin molded body is foamed at a predetermined foaming ratio according to the opening of the mold, and one side of the foamed body 350 is integrated with the shell 10 as shown in FIG. 6D, Thereby supporting the molded print surface 22.

The final product implemented according to this additional embodiment has the expected effect of the product implemented by the above-mentioned additional embodiment. That is, as the protection means, it is possible to prevent the foam 350 made of any shape or shape from being damaged or deformed by the outer skin 10, and it is also possible to prevent the foam 350 molded in the recessed cavity shape of the mold in the foam 350 360, the stereoscopic effect of the molded print surface 22 provided on one surface of the envelope can be retained. In addition, this additional embodiment has the advantage that the three-dimensional feeling of the molded print surface 22 can be further enhanced as compared with the above-mentioned additional embodiments in that the foamed synthetic resin is used.

Another example of the additional embodiment constituting the filler made of the foamable synthetic resin is a structure in which another end plate is further prepared and the other side of the synthetic resin molding used as the filler is wrapped around the inner film. An example of this is shown in Figures 7A and 7B. This additional embodiment is similar to the additional embodiment disclosed in Fig. 3A described above in that the foamable synthetic resin molded article is configured to be wrapped by the inner film.

That is, in the above-mentioned additional embodiment, when the synthetic resin molded body is molded (FIG. 6B), another synthetic resin molded body is prepared without removing it from the mold, and then placed on the upper surface of the synthetic resin molded body. In this case, as shown in Fig. 7A, one surface portion of the synthetic resin molding including the molding portion 36 of the synthetic resin molding body 35 faces the recessed cavity 3 of the mold, and the other surface portion of the synthetic resin molding body 35 And faces one side of the endothelium 40.

The endothelium may be made of either a fabric or a synthetic resin sheet. In this state, the mold is pressurized to integrally mold the endothelium and the synthetic resin molding, and the mold is fitted with the outer skin and the inner skin integrally formed with the synthetic resin molding. In the recessed cavity of the mold, molded parts of molded printing surface, sheath molding surface, and synthetic resin molded article are located. In this state, when the mold is closed and heat is applied, the synthetic resin molded article itself is crosslinked by the applied heat, and the one side surface and the other side surface of the synthetic resin molding, which are in contact with the outer and inner skin, respectively, Penetrates and is integrated with the outer skin and the inner skin to be crosslinked.

When each part of the molded resin article is infiltrated into the surface and internal tissues of the shell and the endothelium and integrated with each other, the pressurization is released and the mold is quickly opened when the cross-linking is completed. 7B, the one side of the foam 350 is integrated with the envelope 10 and the other side of the foam 360 is covered with the inner surface 40 of the inner foam 40, as shown in FIG. 7B, And an integrated product is produced.

6C, the envelope 10 and the synthetic resin molded body 35 are placed on the mold 1, and the inner surface of the synthetic resin molded body 35 is covered with the inner resin layer 35. In this case, (40) is simply added, and then the mold is sealed and heated. That is, the step of integrating the inner skin and the synthetic resin molded body separately is omitted, and these are simultaneously placed on the metal mold for crosslinking and foaming, and the structure of the implemented product is as shown in FIG.

Another example of the additional embodiment constituting the filler made of the foamable synthetic resin is a case in which the synthetic resin molded body integrated with the inner skin is composed of only the molded portion formed in the recessed cavity shape of the metal mold and one example thereof is shown in Figures 8A to 8C .

First, as shown in FIG. 8A, the remaining portion 37 excluding the forming portion 36 in the molten synthetic resin formed body 35 is removed by using a separate removing means 5 while keeping the mold 1 at a constant temperature Remove. The removing means 5 may be made by means of a knife having a constant width. Removal of an unnecessary portion may be achieved by cooling the mold to convert the molten synthetic resin molding to a solid state and then removing it as a heated removal means. In this case, a device capable of being heated to a temperature not lower than the lowest softening point of the material may be added to the end of the removing means.

When the unnecessary portion is removed from the synthetic resin molded body and only the molded body remains, the mold with the inner body 40 is pressed as shown in FIG. 8B, and the molded body 36 of the synthetic resin molded body is integrated with the inner body 40 to demold. Next, the mold is enclosed with the outer skin and the inner skin integrally formed with the molding portion of the synthetic resin molded article, and the mold is sealed. At this time, the molding surface of the molded printing surface, the molding surface of the sheath, and the molding portion of the synthetic resin molded article are located in the recessed cavity of the mold.

When the mold is rapidly opened at a certain point after heating for a certain period of time in this state, a product having a structure as shown in FIG. 8C is produced. This additional embodiment differs from the above-described additional embodiments in that only the molding portion 36 of the synthetic resin molding is integrated and foamed inside the molding surface 12 of the envelope 10, The three-dimensional feeling of the surface 22 can be more conspicuous.

 In this additional embodiment of the present invention, when an unnecessary portion is removed from the synthetic resin molded body and only the molded body is left, the molded body is demolded from the mold, the molded body of the synthetic resin molded body, The case where the mold is sealed and both of them are simultaneously cooled and molded are not excluded. It is obvious that the structure of the implemented product is the same as that of Fig. 8C.

On the other hand, in the case of constructing the foamed synthetic resin molded article comprising the filler as the inner skin, another additional embodiment using only the molded portion formed in the recessed cavity shape of the mold among the synthetic resin molded articles integrated with the inner skin is shown in FIG.

In this additional embodiment, as shown in Fig. 6B, when the molding part 36 corresponding to the engraved cavity of the mold is molded in the molten synthetic resin molding body 35 as shown in Fig. 6B, the synthetic resin molding body 35 And the remaining portion 37 of the synthetic resin molded body is removed by integrating only the molding portion 36 of the synthetic resin molded body with the inner skin 40. [

As described above with reference to Fig. 5, the work related to this can be easily realized by using a cutting metal such as a high-frequency metal mold. The specific product form implemented in accordance with this embodiment is very contrary to Figure 8c.

While the present invention has been particularly shown and described with reference to exemplary embodiments thereof, it is to be understood that the invention is not limited to the disclosed embodiments, but, on the contrary, is intended to cover various modifications and equivalent arrangements included within the spirit and scope of the appended claims. It will be apparent that the present invention can be practiced with added features.

10: sheath 12: sheathing face
20: printing surface 22: forming printing surface
30: Non-expandable synthetic resin molded article 35: Expandable synthetic resin molded article
40: inner skin 350: foam

Claims (9)

Preparing an envelope;
A step of forming a printing surface having an arbitrary shape on one surface of the envelope;
Preparing a mold provided with an engraved cavity corresponding to a printing surface formed on an outer shell;
Placing one side of the envelope in the mold so that the printed side of the envelope faces the depressed cavity;
Placing a molding plate having a certain thickness on the other surface of the outer shell placed in the mold;
Applying an external force to the upper surface of the molding plate to mold the printed surface of the sheath into a recessed cavity shape of the mold;
Separating an envelope having a printing surface molded in a recessed cavity shape of the mold from the mold;
Introducing a non-foamable synthetic resin into the mold in an amount larger than the intaglio cavity volume;
Releasing the synthetic resin molding body from the mold when the synthetic resin molten material is filled in the recessed cavities of the mold in a state in which the mold is pressed, releasing the pressure of the mold and opening the synthetic resin molding body;
Placing an outer shell and a synthetic resin molded body in a mold so that the printed surface of the outer shell and the molded portion of the molded resin molded article are positioned in the recessed cavity of the mold;
Molding the mold in a pressurized state to integrate the one surface portion of the synthetic resin molded article with the outer surface;
Wherein the method comprises the steps of: The method according to claim 1,
Wherein the outer cover is made of a fabric or a synthetic resin sheet. The method according to claim 1,
Wherein the printing surface is formed by printing on a screen or by transferring a transfer sheet provided with a printing surface of an arbitrary shape. delete The method according to claim 1,
Wherein a surface of the synthetic resin molded article placed on the upper surface of the envelope is further provided with an inner skin on the other surface thereof. 6. The method of claim 5,
Characterized in that the synthetic resin molded body is formed of only a molded part formed by a negative-shaped cavity of a metal mold. Preparing an envelope;
A step of forming a printing surface having an arbitrary shape on one surface of the envelope;
Preparing a mold provided with an engraved cavity corresponding to a printing surface formed on an outer shell;
Placing one side of the envelope in the mold so that the printed side of the envelope faces the depressed cavity;
Placing a molding plate having a certain thickness on the other surface of the outer shell placed in the mold;
Applying an external force to the upper surface of the molding plate to mold the printed surface of the sheath into a recessed cavity shape of the mold;
Separating an envelope having a printing surface molded in a recessed cavity shape of the mold from the mold;
Injecting a larger amount of foamable synthetic resin into the mold than the intaglio cavity;
Releasing the pressing of the mold between the time when the synthetic resin is crossed through the softening point in the state where the mold is pressed, releasing the mold, and releasing the molded synthetic resin formed in the recessed cavity shape;
Placing an outer shell and a synthetic resin molded body in a mold so that the printed surface of the outer shell and the molded portion of the molded resin molded article are positioned in the recessed cavity of the mold;
Heating the mold in a pressurized state to crosslink the synthetic resin molding;
Releasing the pressure, opening the mold, and foaming the crosslinked synthetic resin molding in a state of being in contact with each of the shell and the inner shell;
Wherein the method comprises the steps of: 8. The method of claim 7,
Wherein a surface of the synthetic resin molded article placed on the upper surface of the envelope is further provided with an inner skin on the other surface thereof. 9. The method of claim 8,
Characterized in that the synthetic resin molding body integrated with the inner skin is composed of only a molded portion formed by the negative depressed cavity of the metal mold.

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