TWI383882B - Foam product and method for making the same - Google Patents

Description

Foaming product and manufacturing method thereof

The present invention relates to a method of manufacturing a foamed product, and more particularly to a technique for producing a foamed product having a plastic skin.

A commonly used foaming product has a foamed sheet or a foamed core and at least one skin; wherein the foamed sheet is formed by foaming a foaming material, and the skin is additionally attached by a bonding medium. On the foam board.

Taiwan Patent No. M269181 discloses a multilayer composite panel characterized in that a surface of a foamed layer is coextruded with a layer of a hard plastic layer. In addition, Taiwan Patent No. 580424 discloses a method for manufacturing a wear-resistant three-dimensional foam, which is obtained by combining a film having a pattern and a foam to obtain a finished foam product. Further, Taiwan Patent No. I244978 discloses a manufacturing method in which a cushion and a hard plate are integrally molded, and a cushion, a foamed material, and a hard plate are integrally molded by using a plurality of molds.

In the patents of US Pat. The foaming core is formed by foaming the foaming raw material, and then cutting into a predetermined shape, and then bonding the upper skin and the lower skin to the upper and lower surfaces and the periphery of the foaming core plate by thermocompression bonding. . The US Patent No. 5,211,593 discloses a foamed core structure having an embossed pattern. The structure and manufacturing method thereof are similar to those of the above patents, but are complicated. In addition, US Patent No. 4,693,856 discloses a method of manufacturing a thermoplastic article which provides a plurality of first-time foamed synthetic resin particles and introduces a swelling agent to form a second foamed particle, and then, for a second time. The foamed particles are placed in a mold and hot gas is introduced into the mold so that the second expanded particles expand and bond to each other.

The present invention mainly describes a method for producing a foamed product having a skin, and more particularly, a foamed product having a film and a skin. The foamed product comprises a foamed core, at least one top skin and a first plastic film; wherein the foamed core has a top surface, a bottom surface and a plurality of peripheral edges, and the foamed core comprises a plurality of foamed particles. And the foamed particles are closely combined with each other, and the top surface has at least one concave portion; further, the top skin is bonded and fills the concave portion of the foamed core, and the first plastic film is fully bonded to the The top surface of the foamed core, the periphery and the top skin.

The method for manufacturing the foamed product mainly comprises the following steps: providing a mold having a molding cavity inside the mold; and placing a first plastic film in the molding cavity; then appropriately sized and quantity The top skin is placed at a predetermined position on the inner surface of the first plastic film; a suitable amount of foamed particles is injected into the molding cavity; and hot vapor pressure is injected into the molding cavity to make the hair The foam particles themselves, the first plastic film and the top skin are closely combined with each other to form a foamed product; and the foamed product is taken out; accordingly, the foamed product has the first plastic film The top skin and a foaming surface.

The greatest advantage of the present invention is that the formation of the shape of the foamed product, that is, the combination of the foamed particles, the top skin and the first plastic film, is simultaneously formed, thereby having the advantages of simple, rapid, and inexpensive manufacture. Furthermore, the top skin and the first plastic film of the present invention and the foam core can be further formed by a bonding film, thereby producing a good bond and having the advantage of being difficult to separate.

The first figure shows a first preferred embodiment of the present invention, which discloses a foamed product (1), and the foamed product (1) comprises a foamed core (10) and at least one top skin (11) And a first plastic film (12); wherein the foam core (10) has a top surface (100), a bottom surface (101) and a plurality of perimeters (102), the foam core (10) comprising a plurality of Foamed particles, and the foamed particles are closely bonded to each other, and the top surface (100) has at least one recess (103); further, the top skin (11) is bonded and fills the foamed core (10) a recess (103), the first plastic film (12) is fully integrated on the top surface (100), the periphery (102) and the top skin (11) of the foam core (10); The first plastic film (12) has a visible pattern (120) therein. In the present invention, the first plastic film (12) may be a single plastic film, and the pattern (120) is printed on one side of the foam core (10), or may be a composite multilayer plastic. a film, wherein the pattern (120) is printed, and has a thickness of about 0.03 to 1.5 mm; wherein the first plastic film (12) can be printed not only with a pattern but also with a color to further obtain a bottom. The plastic film of the color; in addition, the first plastic film (12) preferably has a thickness of 0.03 to 0.1 mm; and the actual thickness may be increased or decreased depending on the field of use.

Wherein, the foamed particles may be foamed particles of related materials such as PP, PE, PS, etc., and the foamed particles are pre-expanded and formed into a bead shape; the top skin (11) includes a foamed layer (110), the optimum foaming density is 1.5~12PCF, and the thickness is 1~25mm. The density of the foamed layer (110) is higher than that of the foamed core (10), and the touch of the foamed product (1) and its overall surface flatness can be improved; in addition, the foamed layer (110) can be It is a related material such as PE, PP, PS or TPU layer, and the foam layer (110) can be selected from the material similar to the material according to the material of the foamed particle.

In the first preferred embodiment of the present invention, the foamed product (1) can be regarded not only as a finished product but also as a semi-finished product (1), and the foamed product (1) can also be used in various fields, such as Sporting goods, entertainment equipment or cushions, etc. For example, when the foamed product (1) is applied to a sports board such as a snowboard, a windsurfing board or a water skiing board, it is in a semi-finished state because the exposed bottom surface (101) of the foaming core (10) requires another Combined with other bottom layers or addenda for the purpose of protecting the bottom surface (101), and for the user to smoothly slide on the surface by the bottom layer; further, when the foamed product (1) is applied to a bicycle chair When the pad or other pad is used, then the foamed product (1) can be regarded as a finished product, because it is not important that the bare bottom surface (101), that is, the bottom surface of the bicycle seat cushion, has no underlying cover.

Furthermore, the top skin (11) of the present invention can disperse the force of the foamed core (10) surface of the foamed product (10) in contact with the outside to avoid the long-term stress of the foamed core (10). Deformation, and further, the foamed product (1) has a strong structure and greatly increases its service life; and the top skin (11) is covered by the first plastic film (12), and The recess (103) and the first plastic film (12) are coupled to each other, so that the top skin (11) does not have a movable space. Therefore, as shown in the first figure, when the foamed product (1) is applied to the manufacture of a skateboard, the top skin (11) is disposed in a user's use area or seat portion, that is, the foam core (10). The top surface (100).

In addition, in order to strengthen the bonding strength between the foamed product (1), the top skin (11) and the first plastic film (12), the first plastic film (12) may further comprise a first bonding film (121). ) for providing a good bond with the top surface (100) and the periphery (102) of the foamed core (10); and the top skin (11) may further comprise a second bonding film (111) for the first A foamed layer (110) produces a good bond with the recess (103) of the foamed core (10). It should be additionally noted that the material properties of the bonding film of the present invention are determined according to the foamed particle material, and the bonding film is a material which can be well combined with the above-mentioned foamed particles, such as a mixture of PE materials and A multi-material copolymer such as a PS material.

The second drawing shows a second preferred embodiment of the present invention, which likewise discloses a foamed product (1a); similarly to the first preferred embodiment described above, the foamed product (1a) comprises a foaming The core (10a), the two top skins (11a) and a first plastic film (12a). As shown, the top skin (11a) of the second preferred embodiment comprises two foam layers (110a); therefore, the top surface (100a) of the foam core (10a) has two recesses (103a). And each top skin (11a) is combined and filled with its corresponding concave portion (103a); in addition, the first plastic film (12a) is fully bonded to the top surface of the foamed core (10a) (100a) , the periphery (102a) and the top skin (11a), and the first plastic film (12a) has a visible pattern (120a); in addition, the foam layers (110a) may be PE, PP, PS Or related materials such as TPU layer.

Similar to the first preferred embodiment described above, the top skin (11a) and the first plastic film (12a) of the second preferred embodiment may also include the bonding film of the first preferred embodiment to strengthen itself. The bonding strength with the foamed core (10a). And as shown in the first and second figures, the top skin (11) (11a) of the present invention can be placed or appropriately distributed on the top surface (100) (100a) of the foamed core (10) (10a). Anywhere, and its preferred location, may be the location at which the foamed product (1) is intended to be stressed. For example, if the foamed product (1) is used in the production of canoes, boats, boats, etc., the boat body, the hull, etc. itself need to cooperate with the plurality of top skins (11a).

The third figure shows a third preferred embodiment of the present invention, that is, a foamed product (1b) is similarly disclosed; similarly to the first preferred embodiment described above, the foamed product (1b) includes one hair The bubble core (10b), a top skin (11b) and a first plastic film (12b) further comprise a bottom skin (13) bonded to the bottom surface of the foam core (10b); The bubble core (10b) can be completely covered by the first plastic film (12b) and the bottom skin (13) to further protect the foam core (10b) and prolong its service life.

As described above, the operation of the foamed product, the third figure further shows that the foamed product (1) is applied to the relevant structure of the sports board, since the exposed bottom surface of the foamed core (10b) needs to be used. When sliding on a surface, such as a surface such as water, snow or sand, the bottom surface can be protected by the bottom skin (13), and the user can borrow the bottom skin (13). Smoothly slide on the surface.

Furthermore, the fourth and fifth figures further show a preferred embodiment of the bottom skin (13), respectively. As shown in the fourth figure, the bottom skin (13) comprises a foam layer (130) and a plastic plate (131); wherein the foam layer (130) is for bonding to the bottom surface of the foam core. The foamed layer (130) has an optimum foaming density of 1.5 to 12 PCF and a thickness of 1 to 25 mm; and the plastic sheet (131) is bonded to the foamed layer (130). Furthermore, the bottom skin (13) may further comprise a bonding film (132) for the foam layer (130) to have a good bond with the bottom surface of the foaming core; and the bonding film (132) is the same as the above The binding membrane of the examples. In addition, the foam layer (130) may be a PE, PP, PS or TPU layer, and the plastic plate (131) is a wear resistant material, preferably having a thickness of 0.1 to 1 mm, and the actual thickness is determined according to the use thereof. The field can be increased or decreased.

As shown in the fifth figure, the bottom skin (13) may include a second plastic film in addition to the foam layer (130), the plastic plate (131) and the bonding film (132) shown in FIG. (133), disposed between the foam layer (130) and the plastic plate (131), and combined with the foam layer (130) and the plastic plate (131); the same as the first plastic The second plastic film (133) may be a single film or a composite film, and has a pattern visible from the outside of the plastic plate (131).

The sixth drawing shows a fourth preferred embodiment of the present invention, and also discloses a foamed product (1c) comprising not only the foamed core (10, 10a) shown in the first or second preferred embodiment, The top skin (11, 11a) and the first plastic film (12, 12a) further comprise a foamed structure (2) bonded to the bottom surface (101, 101a) of the foam core (10, 10a). The foamed structure (2) comprises a foamed substrate (20) having a top surface (200), a bottom surface (201) and a plurality of peripheral portions (202), and the bottom surface (201) of the foamed substrate (20) is bonded a bottom surface (101, 101a) of the foamed core (10, 10a); wherein the foamed substrate (20) comprises a plurality of foamed particles, and the foamed particles are closely combined with each other; The material of the foamed particles of the foam substrate (20) is the same as that described in the above embodiments, such as PP, PE, PS, and the like.

Furthermore, as shown in the sixth figure, the foamed product (1c) may further comprise a second plastic film or a plastic sheet (22) integrally bonded to the top surface of the foamed substrate (20) ( 200) and the periphery (202); wherein the second plastic film or a plastic sheet (22) has a visible pattern similar to the first plastic film (12, 12a) previously described; wherein the plastic The plate is a wear resistant material and has a preferred thickness of 0.03 to 1.5 mm. In addition, the foamed structure (2) may further comprise a bonding film (23) for the bottom surface (201) of the foaming substrate (20) and the bottom surface (101, 101a) of the foaming core (10, 10a). Produce a good bond.

7 and 8 show a fifth preferred embodiment of the present invention, and also discloses a foamed product (1d) similar to the fourth preferred embodiment, which comprises a foamed core (10, 10a), The top skin (11, 11a), the first plastic film (12, 12a) and the foamed substrate (20) of the foamed structure (2) further comprise at least one skin layer (21) bonded to the foam substrate ( 20) The top surface (200); wherein the top surface (200) of the foamed substrate (20) has at least one cavity (203) for receiving the skin layer (21). In addition, the foamed product (1d) may further comprise a second plastic film or a plastic sheet (22d) for fully combining or covering the top surface (200) and the periphery (202) of the foam substrate (20). And the skin layer (21); wherein the second plastic film or plastic sheet (22d) is similar to the second plastic film or plastic sheet (22).

As shown in the eighth figure, the top surface (200) and the periphery (202) of the foamed substrate (20) have mutually communicating receptacles (203d) for receiving the skin layer (21), and the skin layer (21) It can also be covered by the second plastic film or a plastic sheet (22d).

In the fourth and fifth preferred embodiments, the second plastic film or plastic sheet (22, 22d) may further comprise a bonding film (230) for the second plastic film or plastic sheet (22). 22d) produces a good bond with the top surface (200), the periphery (202) and the skin layer (21) of the foamed substrate (20).

In detail, the structures of the fourth and fifth preferred embodiments of the present invention, in some parts, are actually combined with the semi-finished products completed by the first and second preferred embodiments; The fourth and fifth preferred embodiments show that the foamed structure (2) is completely bonded to the bottom surface (101, 101a) of the foamed core (10, 10a), but its practical use is not limited thereto. For example, the foamed structure is bonded to a portion of the bottom surface of the foamed core as needed.

In addition, the ninth drawing further shows a method for producing the above-mentioned foamed product; wherein the method comprises the following steps: a) providing a mold having a molding cavity inside the mold; wherein the mold is one of the moldable molds The first mold is composed of a second mold. The first mold and the second mold respectively have a first molding cavity and a second molding cavity for forming the molding cavity, and the molding cavity corresponds to the shape of the foamed product. In addition, the first mold is further connected with a first conveying pipe and a second conveying pipe, and is connected to the injection device by the first and second conveying pipes; the injection device comprises a barrel and a gas supply device, and The cartridge is connected to the first conveying pipe for injecting the foaming particles required for the subsequent step, such as foamed particles of related materials such as PP, PE, PS, etc.; and the gas supply device borrows the second conveying pipe and the mold Connection to supply hot vapor pressure.

b) placing a first plastic film in the molding cavity; wherein the first plastic film is fixed in the mold in a manner sufficient to cover the molding cavity; for example, the first plastic is first The film is disposed on the second mold, and then the first mold and the second mold are combined, so that the first plastic film can be fixed in the mold.

c) placing a suitable size and quantity of the top skin at a predetermined position on the inner surface of the first plastic film; d) injecting an appropriate amount of foamed particles into the molding cavity; that is, driving the injection device and borrowing the first a conveying pipe, the foaming particles are fed into the mold; e) injecting hot vapor pressure into the molding cavity, so that the foaming particles themselves, the first plastic film and the top skin are mutually Intimately combining to form a foamed product; more specifically, using the second transfer tube to inject a suitable heat vapor pressure into the molding cavity of the mold, so that the foamed particles are slightly heated again Expanding, and causing the surfaces of the foamed particles to be thermally fused and viscous, and tightly bonded to each other without any gap, and when the foamed particles are formed by extrusion bonding to each other, they are in contact with each other. The first plastic film and the top skin are also closely bonded to each other; and f) the foamed product is obtained, the foamed product having the first plastic film, the top skin and a foaming Surface; wherein the foamed particles are bonded, according to To form a foam core molded cavity, and combined with the first plastic film and the top of FIG skin deep; therefore, not in contact with the first plastic film and the top skin of FIG foamed particles, the foamed surface is formed.

Therefore, according to the above method, a foamed product as shown in the first figure and the second figure can be produced. In addition, the above method may further comprise a step of: g) bonding a bottom skin to the foaming surface; that is, bonding the bottom skin to the foaming surface by means of hot press bonding. Therefore, in addition to the above method, by adding this step, a foamed product as shown in the third figure can be produced.

In addition, as shown in the tenth figure, the first plastic film of the present invention can be completed by the following steps; firstly, a plastic film is provided with a visible pattern; then, a bonding film is formed on one side of the plastic film. The bonding film is used to provide a good bond between the plastic film and the foamed particles. In more detail, a transparent or translucent plastic film is provided first, and a pattern or color is pre-printed on the inside; then, a thickness of about 0.01 to 0.1 mm is formed on one side of the plastic film by lamination. The binding membrane is the same as the binding membrane in the above examples.

The eleventh figure further shows that the patterned plastic film is formed by the following steps; firstly, a first film is provided; then, the pattern or color is formed on the first film by printing; Then, a second film is formed on the first film by an extrusion or lamination method to cover the pattern, that is, the pattern is disposed between the first film and the second film. .

The twelfth figure indicates the manufacturing method of the bottom skin; firstly, a foaming layer is provided, which has the material as shown in the above embodiment and has a foaming density of 1.5 to 12 PCF and a thickness of 1 to 25 mm; Forming a plastic sheet on one side of the foam layer; then, forming a bonding film on the other side of the foam layer, the bonding film is for the foam layer to be well combined with the foaming surface; wherein the bonding film and the plastic sheet They are respectively formed on the opposite faces of the foamed layer by lamination or lamination. According to this, the bottom skin as shown in the fourth figure can be produced.

The thirteenth figure shows the method of making the bottom skin shown in the fifth figure; firstly, a foaming layer having a foaming density of 1.5 to 12 PCF and a thickness of 1 to 25 mm; and then providing a second plastic film And having a visible pattern; then, one side of the second plastic film is bonded to one side of the foam layer; then, a plastic plate is formed on the other side of the second plastic film, the plastic plate is thicker than The second plastic film; finally, a bonding film is formed on the other side of the foam layer, and the bonding film is used for the foam layer to form a good bond with the foaming surface. Similar to the above method, the bonding film and the plastic sheet are respectively formed on the foam layer by lamination or lamination.

It can be seen from the above description that the greatest advantage of the present invention is that the formation of the shape of the foamed product and the combination of the foamed core and the top skin and the first plastic film are simultaneously formed, thereby being simple, fast, and inexpensive to manufacture. The advantages. Furthermore, the top skin and the first plastic film of the present invention and the foam core can be further formed by the bonding film to produce a good bond and have the advantage of being difficult to separate. In any case, these products have the advantage of being lightweight because their core is composed of foamed granules. Moreover, the top skin, the first plastic film and the bottom skin can increase the structural strength of the foamed core and increase its service life. In addition, the presentation of printed patterns or molded three-dimensional patterns can enhance the market competitiveness of these products. More importantly, the manufacturing process of the present invention is relatively simple and fast.

In summary, the production process of the present invention completely breaks through the problems of low production efficiency and deteriorating quality defect rate in the reforming and adopting method, and is a high-invention in the technical concept, which should meet the requirements of the patent application, and apply in accordance with the law.

(1). . . Foaming product

(10). . . Foam core

(100). . . Top surface

(101). . . Bottom

(102). . . Surrounding

(103). . . Concave

(11). . . Top skin

(110). . . Foam layer

(111). . . Second binding membrane

(12). . . First plastic film

(120). . . pattern

(121). . . First binding membrane

(1a). . . Foaming product

(10a). . . Foam core

(100a). . . Top surface

(102a). . . Surrounding

(103a). . . Concave

(11a). . . Top skin

(110a). . . Foam layer

(12a). . . First plastic film

(120a). . . pattern

(1b). . . Foaming product

(10b). . . Foam core

(11b). . . Top skin

(12b). . . First plastic film

(13). . . Bottom

(130). . . Foam layer

(131). . . Plastic plate

(132). . . Bonding membrane

(133). . . Second plastic film

(1c). . . Foaming product

(2). . . Foaming structure

(20). . . Foamed substrate

(200). . . Top surface

(201). . . Bottom

(202). . . Surrounding

(203) (203d). . . Crate

(twenty one). . . Cortex

(22) (22d). . . Plastic sheet

(twenty three). . . Bonding membrane

The first figure shows a first preferred embodiment of the present invention which discloses a partial cross-sectional view of a foamed product.

The second figure shows a second preferred embodiment of the present invention which discloses a partial cross-sectional view of another foamed product.

The third figure shows a third preferred embodiment of the present invention which discloses a foamed product comprising a base.

The fourth figure shows a preferred embodiment of the base.

The fifth figure shows another preferred embodiment of the base.

Fig. 6 is a view showing a fourth preferred embodiment of the present invention, which discloses a foamed product comprising a foamed structure.

Figure 7 is a view showing a fifth preferred embodiment of the present invention, which discloses a foamed product comprising a foamed structure.

In the eighth figure, it is shown that the skin layer of the foamed product is bonded to the top surface and the periphery of a foamed substrate.

The ninth drawing is a schematic flow chart showing the production of the foamed product of the present invention.

The tenth figure shows a schematic flow chart of the first plastic film of the present invention.

The eleventh drawing shows a schematic flow chart of the production of the plastic film of the present invention.

Fig. 12 is a schematic view showing the flow of the base of the present invention to produce the base shown in the fourth figure.

Fig. 13 is a schematic view showing the flow of the base of the present invention to produce the base shown in the fifth figure.

(1). . . Foaming product

(10). . . Foam core

(100). . . Top surface

(101). . . Bottom

(102). . . Surrounding

(103). . . Concave

(11). . . Top skin

(110). . . Foam layer

(111). . . Second binding membrane

(12). . . First plastic film

(120). . . pattern

(121). . . First binding membrane

Claims (27)

A foamed product comprising: a foamed core having a top surface, a bottom surface and a plurality of peripheral edges, the foamed core comprising a plurality of foamed particles, and the foamed particles are closely coupled to each other; wherein The top surface has at least one recess; at least one top skin, comprising a first foam layer, and the top skin is combined and filled with the concave portion of the foam core; a first plastic film is fully integrated into the hair a top surface of the bubble core, a periphery and the top skin; wherein the first plastic film has a visible pattern; and a first bonding film is provided for the first plastic film and the top surface of the foam core, The perimeter and the top skin produce a good bond. The foamed product according to claim 1, further comprising a bottom layer bonded to the bottom surface of the foamed core. The foamed product according to claim 1 or 2, wherein the first foamed layer has a foaming density of 1.5 to 12 PCF and a thickness of 1 to 25 mm. The foamed product of claim 3, wherein the at least one top skin further comprises: at least one second bonding film, wherein the first foaming layer and the concave portion of the foaming core are in good bonding. The foamed product of claim 2, wherein the base comprises: a first foam layer bonded to a bottom surface of the foam core, and the first A foamed layer has a foaming density of 1.5 to 12 PCF and a thickness of 1 to 25 mm; and a plastic sheet is bonded to the first foamed layer. The foamed product of claim 2, wherein the base comprises: a first foam layer bonded to a bottom surface of the foam core, and the first foam layer has a foam density of 1.5 ~12PCF, the thickness is 1~25mm; a second plastic film is bonded to the first foam layer; wherein the second plastic film has a visible pattern; and a plastic plate is bonded to the first The second plastic film is thicker than the second plastic film; wherein the pattern of the second plastic film is visible from the outside of the plastic plate. The foamed product of claim 5, wherein the base further comprises a bonding film for providing a good bond between the first foamed layer and the bottom surface of the foamed core. The foamed product of claim 5, wherein the at least one top skin comprises: at least one second foam layer having a foaming density of 1.5 to 12 PCF and a thickness of 1 to 25 mm. The foamed product of claim 8, wherein the at least one top skin further comprises: at least one first bonding film, wherein the second foaming layer is in good bonding with the concave portion of the foaming core. The foaming product according to claim 9 of the patent application, wherein The base further includes a second bonding film for providing a good bond between the first foam layer and the bottom surface of the foam core. The foaming product of claim 10, wherein the first plastic film comprises: a third bonding film for providing a good top surface, a periphery, and the at least one top skin of the foaming core Combine. The foamed product according to claim 1, further comprising a foamed structure bonded to the bottom surface of the foamed core, the foamed structure comprising a foamed substrate having a top surface, a bottom surface and a plurality of The bottom surface of the foamed substrate is bonded to the bottom surface of the foamed core; wherein the foamed substrate comprises a plurality of foamed particles, and the foamed particles are closely combined with each other. The foamed product of claim 12, further comprising a second plastic film integrally bonded to the top surface and the periphery of the foamed substrate; wherein the second plastic film has visible pattern. The foamed product according to claim 12, further comprising a plastic plate integrally bonded to the top surface and the periphery of the foamed substrate. The foamed product of claim 12, further comprising at least one skin layer bonded to a top surface of the foamed substrate; wherein the top surface of the foamed substrate has at least one receiving groove for receiving the Cortex. The foamed product according to claim 12, further comprising at least one skin layer bonded to the top surface and the periphery of the foamed substrate; wherein the top surface and the periphery of the foamed substrate have at least one of mutually connected a pocket for receiving the skin layer. The foaming product according to claim 15 or claim 16, further comprising a second plastic film integrally bonded to the top surface of the foamed substrate, the periphery and the skin layer; wherein the second The plastic film has a visible pattern inside. The foamed product according to claim 15 or 16, further comprising a plastic sheet integrally bonded to the top surface, the periphery and the skin layer of the foamed substrate. The foamed structure according to claim 12, wherein the foamed structure further comprises a bonding film for providing a good bond between the bottom surface of the foamed substrate and the bottom surface of the foamed core. The foaming product of claim 17, wherein the second plastic film further comprises a bonding film for providing a good bond between the second plastic film and the top surface, the periphery and the skin layer of the foam substrate. . The foamed product of claim 18, wherein the plastic sheet further comprises a bonding film for providing a good bond between the plastic sheet and the top surface, the periphery and the skin layer of the foamed substrate. A method for manufacturing a foamed product, comprising the steps of: providing a mold having a molding cavity inside; providing a first plastic film, the first plastic film comprising a plastic film and a bonding film, a bonding film is disposed on one side of the plastic film; the first plastic film is placed in the molding cavity; and an appropriate size and quantity of the top skin is placed at a predetermined position on the inner surface of the first plastic film; a quantity of foamed particles is injected into the molding cavity; Injecting hot vapor pressure into the molding cavity to closely bond the foamed particles themselves, the first plastic film and the top skin to each other to form a foamed product; and removing the foamed product Wherein the foamed product has the first plastic film, the top skin and a foaming surface. The method of claim 22, further comprising bonding a skin to the foamed surface. The method of claim 22, wherein the plastic film has a visible pattern. The method of claim 24, wherein the plastic film is completed by: providing a first film; forming the pattern on the first film by printing; and forming the first film A second film is formed thereon to cover the pattern. The method of claim 23, wherein the bottom layer is completed by the following steps: providing a foamed layer having a foaming density of 1.5 to 12 PCF and a thickness of 1 to 25 mm; One side of the layer forms a plastic sheet; and a bonding film is formed on the other side of the foam layer to provide a good bond between the foam layer and the foamed surface. The method of claim 23, wherein the bottom layer is completed by the following steps: providing a foamed layer having a foaming density of 1.5 to 12 PCF and a thickness of 1 ~25mm; providing a second plastic film having a visible pattern; bonding one side of the second plastic film to one side of the foam layer; forming a plastic plate on the other side of the second plastic film The plastic sheet is thicker than the second plastic film; and a bonding film is formed on the other side of the foam layer to provide a good bond between the foam layer and the foaming surface.