Composite silica gel ornament manufacturing method, composite silica gel ornament and shoe component

Abstract

A manufacturing method of a composite silica gel ornament comprises the following steps: providing a mold; placing the first hot melting layer in a first cavity part and a second cavity part corresponding to a placing area of the mold; injecting liquid silica gel into the mold cavity to fill the first cavity part and the second cavity part and cover the first hot melting layer; the second hot melting layer is placed in the second cavity part and laid on the liquid silica gel; the mold is heated, and the first hot melting layer and the second hot melting layer are subjected to hot melting in the mold cavity to be combined with the liquid silica gel; the liquid silica gel is cooled and solidified into a silica gel layer, the composite silica gel ornament is obtained, and therefore the first hot melting layer and the second hot melting layer are combined on the two sides of the silica gel layer in the composite silica gel ornament; the shoe part provided by another embodiment comprises the composite silica gel ornament which is combined on the vamp and the sole through the first hot melting layer and the second hot melting layer, and the silica gel layer is exposed on the vamp.

Description

TECHNICAL FIELD

[0001] The present application relates to a shoe material patch, in particular to a manufacturing method of a composite silica gel patch, a composite silica gel patch and a shoe component. BACKGROUND

[0002] Many clothes, hats and shoes have various patches designed on the fabric surface, which include various trademarks, words and patterns. Traditional patches are usually fixed on the fabric surface by sewing technology.

[0003] Some manufacturers use hot pressing technology to fix the patches on the fabric surface. The patches are usually made of PU hot melt sheet (Polyurethane), so that the PU patch can be hot melt combined with the fabric surface. Although PU is an environmentally friendly material, it still produces a small amount of toxins, which makes some consumers or manufacturers choose to refuse to use it.

[0004] Some manufacturers try to use silica gel material for the patches. Silica gel is non-toxic and chemically stable, and has high mechanical strength. However, the fiber material of the existing fabric and the silica gel patch are mostly of different chemical properties and cannot be polar combined, so it is difficult to directly paste the solid silica gel patch on the fabric surface. If the silica gel patch is applied to the shoe body, the solid silica gel patch cannot be directly pasted on the contact surface of the shoe sole of the shoe body. Additional adhesive needs to be applied between the solid silica gel patch and the fabric surface or the contact surface of the shoe sole to fix the solid silica gel patch on the fabric surface or the shoe sole. The adhesive is applied between the silica gel patch and the fabric or the shoe sole by manual method. In addition to increasing the cost of attaching the silica gel patch to the fabric or the shoe sole, the adhesive can also damage the surface structure of the fabric and the shoe sole.

[0005] In addition, some manufacturers design a surface treatment agent between the silica gel layer and the hot melt layer to combine the silica gel layer and the hot melt layer through the surface treatment agent to form a composite silica gel patch. However, the existing composite silica gel patch process also uses manual method to apply the surface treatment agent to the silica gel layer and the hot melt layer, which not only reduces the process efficiency, but also poses a health risk to the workers. SUMMARY

[0006] Therefore, the present application aims to provide a manufacturing method of a composite silica gel decoration sheet, a composite silica gel decoration sheet and a shoe part. The manufacturing method uses a mold to heat-press the composite silica gel decoration sheet once, so that two hot-melt layers are hot-melt combined on two side surfaces of the silica gel layer. The manufacturing method not only accelerates the process efficiency and saves the use of chemical glue, but also provides the effect of fast fitting by using the hot-melt layers to be attached to any fabric or shoe part.

[0007] To achieve the above-mentioned purpose, the present application provides a manufacturing method of a composite silica gel decoration sheet, which comprises the following steps: step S1, providing a mold, wherein a mold cavity of the mold has a first cavity part and a second cavity part connected in communication, and the first cavity part is defined with a placement area in the mold; step S2, providing a first hot-melt layer, wherein the first hot-melt layer is placed in the mold cavity of the mold corresponding to the position of the placement area and located in the first cavity part and the second cavity part; step S3, injecting a liquid silica gel from the second cavity part into the mold cavity of the mold to fill the first cavity part, wherein the liquid silica gel fills the second cavity part and covers the first hot-melt layer; step S4, providing a second hot-melt layer, wherein the second hot-melt layer is placed in the first cavity part of the mold and laid on the liquid silica gel; step S5, heating the mold, wherein the first hot-melt layer and the second hot-melt layer are hot-melted in the mold cavity to combine the liquid silica gel; and step S6, cooling the mold to solidify the first hot-melt layer and the second hot-melt layer, and the liquid silica gel forms a silica gel layer between the first hot-melt layer and the second hot-melt layer, thereby obtaining a composite silica gel decoration sheet.

[0008] Another embodiment of the present application provides a composite silica gel decoration sheet, which comprises a silica gel layer, a first hot-melt layer and a second hot-melt layer. The silica gel layer has a first surface and a second surface on opposite sides, and the silica gel layer is defined with a mounting area on the first surface. The first hot-melt layer is hot-melt combined on the first surface of the silica gel layer and located in the mounting area. The second hot-melt layer is hot-melt combined on the second surface of the silica gel layer.

[0009] A shoe part provided by still another embodiment of the present application comprises an upper, a sole and the above-mentioned composite silica gel decoration sheet. The upper has an outer peripheral surface. The sole is combined with the bottom of the upper, and the sole has a ring-shaped side wall surrounding the outer peripheral surface of the upper. The composite silica gel decoration sheet is arranged between the upper and the sole. The first hot-melt layer is combined with the ring-shaped side wall of the sole, the second hot-melt layer is combined with the outer peripheral surface of the upper, and the silica gel layer is exposed on the upper.

[0010] The effect of the present application is that the composite silica gel decoration sheet manufacturing method utilizes a mold to heat-press form the composite silica gel decoration sheet once, wherein the first hot melt layer and the second hot melt layer are co-mold heated in the mold, so that the first hot melt layer and the second hot melt layer are in a hot melt state respectively and physically combined with the liquid silica gel, and the liquid silica gel is solidified into the silica gel layer, and the first hot melt layer and the second hot melt layer are integrated, forming the composite silica gel decoration sheet with a layered structure, not only accelerating the efficiency of the overall process, but also not including the glue coating step between the first hot melt layer and the silica gel layer and between the second hot melt layer and the silica gel layer in the composite silica gel decoration sheet manufacturing method, saving the use of chemical glue, and making the overall process of the composite silica gel decoration sheet manufacturing method more environmentally friendly.

[0011] In addition, the first and second surfaces of the silica gel layer in the composite silica gel decoration sheet are combined with the first and second hot melt layers, and when the composite silica gel decoration sheet is actually attached to an article, for example, the article is a shoe part, the first and second hot melt layers are combined with the ring side wall of the sole and the outer circumferential surface of the upper, respectively, so that the composite silica gel decoration sheet is clamped between the upper and the sole, so that the pattern of the silica gel layer can be exposed on the upper of the shoe part as decoration. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 A perspective view of a composite silica gel decoration sheet according to a preferred embodiment of the present application.

[0013] Figure 2 A structure exploded view of a composite silica gel decoration sheet according to a preferred embodiment of the present application.

[0014] Figure 3 A side view of a composite silica gel decoration sheet according to a preferred embodiment of the present application.

[0015] Figure 4 A step flowchart of a composite silica gel decoration sheet manufacturing method according to a preferred embodiment of the present application.

[0016] Figure 5 A perspective view of a mold in a composite silica gel decoration sheet manufacturing method according to a preferred embodiment of the present application.

[0017] Figure 6 A top view of a mold in a composite silica gel decoration sheet manufacturing method according to a preferred embodiment of the present application.

[0018] Figure 7 A Figure 6 7-7 direction sectional view.

[0019] Figure 8This is a cross-sectional view of a composite silicone decorative sheet manufacturing method according to a preferred embodiment of the present invention, in which a first hot melt layer, liquid silicone and a second hot melt layer are placed in a mold.

[0020] Figure 9 This is a schematic diagram illustrating the removal of the composite silicone decorative sheet from a mold in a preferred embodiment of the manufacturing method of the composite silicone decorative sheet of the present invention.

[0021] Figure 10 This is a side view of a preferred embodiment of the present invention, showing a composite silicone trim applied to a shoe component.

[0022] Figure 11 for Figure 10 Sectional view in direction 11-11.

[0023] Figure 12 for Figure 11 The enlarged view of part A is shown in the image.

[0024] Explanation of reference numerals in the attached figures:

[0025] 100: Composite silicone decorative piece

[0026] 200: Mold

[0027] 210: Mold cavity

[0028] 210A: First acupoint

[0029] 210B: Second acupoint

[0030] 210C: Placement Area

[0031] 220: Convex step

[0032] 300: Shoe components

[0033] 310: Shoe upper

[0034] 3101: Outer peripheral surface

[0035] 3102: Fitting groove

[0036] 3102a: Open Terminal

[0037] 3102b: Closed end

[0038] 3103: Fixing part

[0039] 320: Shoe sole

[0040] 3201: Circumferential sidewall

[0041] 10: Silicone layer

[0042] 10a: Liquid silicone

[0043] 11: First Page

[0044] 11A: Installation Area

[0045] 11B: Exposed Area

[0046] 12: Second page

[0047] 13: concave part

[0048] 131: Flat surface

[0049] 132: Side view

[0050] 14: Circumferential surface

[0051] 20: First hot melt layer

[0052] 21: Contact wall

[0053] 22: Surrounding Wall

[0054] 30: Second hot melt layer

[0055] S1~S6: Steps Detailed Implementation

[0056] To more clearly illustrate the present invention, preferred embodiments are described in detail below with reference to the accompanying drawings. Please refer to... Figure 1 The composite silicone decorative sheet 100 provided in a preferred embodiment of the present invention includes a silicone layer 10, a first hot melt layer 20 and a second hot melt layer 30.

[0057] The silicone layer 10 has a first surface 11 and a second surface 12 on opposite sides. The silicone layer 10 defines an mounting area 11A and an exposure area 11B on the first surface 11, with the mounting area 11A and the exposure area 11B being adjacent to each other. Figure 2 , Figure 3 As shown, in this embodiment, the silicone layer 10 has a recess 13 corresponding to the position of the mounting area 11A. The recess 13 is open around one end of the silicone layer 10. The recess 13 has a flat surface 131 and a side surface 132. The flat surface 131 is horizontally recessed relative to the first surface 11, indicating that the first surface 11 is located on the exposed area 11B. The side surface 132 connects the flat surface 131 and the first surface 11. The silicone layer 10 has a circumferential surface 14 located between the first surface 11 and the second surface 12 and connecting the periphery of the flat surface 131. The second surface 12 is a plane corresponding to the shape of the silicone layer 10.

[0058] However, in other embodiments, the silicone layer 10 can be modified to have other structures as needed; for example, the silicone layer 10 is not limited to... Figure 2The S-shape presented in the image can also be other geometric shapes; the recess 13 in the mounting area 11A of the silicone layer 10 can be omitted, indicating that the mounting area 11A and the exposed area 11B are at the same level, as long as the mounting area 11A can provide the first hot melt layer 20; the recess 13 in the mounting area 11A is not limited to an open shape, indicating that the recess 13 can be replaced by a groove.

[0059] The first hot-melt layer 20 is hot-melt bonded to the first surface 11 of the silicone layer 10 and located in the mounting area 11A. In this embodiment, the material of the first hot-melt layer 20 is selected from thermoplastic polyurethane (TPU), and no surface treatment agent is contained between the first hot-melt layer 20 and the silicone layer 10, indicating that the first hot-melt layer 20 is physically bonded to the silicone layer 10 by heating to form a hot-melt state. Figure 2 , Figure 3 As shown, the first hot-melt layer 20 is located in the recess 13 and does not protrude from the first surface 11 of the exposed area 11B. The first hot-melt layer 20 has a contact wall 21 and a surrounding wall 22. The contact wall 21 is a flat surface and is located on one side of the first hot-melt layer 20. The surrounding wall 22 surrounds the first hot-melt layer 20 and connects the two ends of the contact wall 21. When the first hot-melt layer 20 is attached to the flat surface 131 of the recess 13, the contact wall 21 abuts against the side surface 132 of the recess 13. The surrounding wall 22 is aligned with the periphery of the flat surface 131 and flush with the circumferential surface 14 of the silicone layer 10, so that the first hot-melt layer 20 corresponds to the shape of the recess 13 and is attached to the mounting area 11A of the silicone layer 10.

[0060] The second hot-melt layer 30 is hot-melt bonded to the second surface 12 of the silicone layer 10. In this embodiment, the material of the second hot-melt layer 30 is the same as that of the first hot-melt layer 20, which is selected from thermoplastic polyurethane (TPU). The second hot-melt layer 30 and the silicone layer 10 also do not contain the surface treatment agent. The bonding method between the second hot-melt layer 30 and the silicone layer 10 is also through heating to physically bond the second hot-melt layer 30 to the silicone layer 10. Figure 2 , Figure 3 As shown, the second hot melt layer 30 is laid flat on the silicone layer 10, corresponding to the shape of the second surface 12.

[0061] Please see Figure 4 The method for manufacturing a composite silicone decorative sheet according to another preferred embodiment of the present invention, for preparing the composite silicone decorative sheet 100 of the aforementioned embodiment, includes the following steps:

[0062] Step S1, a mold 200 is provided. A cavity 210 of the mold 200 has a first cavity portion 210A and a second cavity portion 210B that are connected. The first cavity portion 210A defines a placement area 210C at the bottom of the mold 200. Figures 5-7 As shown, in this embodiment, the mold 200 has a raised step 220 in the placement area 210C, but this is not a limitation. In other embodiments, the raised step 220 in the placement area 210C can be replaced with a groove, or the raised step 220 can be omitted.

[0063] Step S2, the first hot melt layer 20 is provided, and the first hot melt layer 20 is placed into the cavity 210 of the mold 200 at the position corresponding to the placement area 210C and located in the first cavity portion 210A and the second cavity portion 210B, as shown. Figure 8 As shown, in this embodiment, the first hot melt layer 20 is placed on the convex step 220, and the first hot melt layer 20 is located in the second cavity 210B.

[0064] Step S3: A liquid silicone 10a is injected from the second cavity 210B into the cavity 210 of the mold 200 to fill the first cavity 210A, such as... Figure 8 As shown, the liquid silicone 10a fills the second cavity 210B and covers the first hot melt layer 20.

[0065] Step S4, provide the second hot melt layer 30, such as Figure 8 As shown, the second hot melt layer 30 is placed into the second cavity 210B of the mold 200 and laid on the liquid silicone 10a.

[0066] Step S5: Heat the mold 200, whereby the first hot melt layer 20 and the second hot melt layer 30 are hot melted in the cavity 210 to bond the liquid silicone 10a. The mold 200 is heated by a hot press (not shown in the figure), and the heating temperature of the mold 200 is between 140°C and 180°C.

[0067] Step S6: Cool the mold 200 to solidify the first hot melt layer 20 and the second hot melt layer 30, and the liquid silicone 10a forms the silicone layer 10 between the first hot melt layer 20 and the second hot melt layer 30, thereby obtaining the composite silicone decorative sheet 100 (see...). Figure 9 ).

[0068] Therefore, the composite silicone decorative sheet manufacturing method utilizes a mold 200 to hot-press the composite silicone decorative sheet 100 in one step. The first hot-melt layer 20 and the second hot-melt layer 30 are co-molded in the mold 200, causing them to melt and physically bond with the liquid silicone 10a. The liquid silicone 10a then solidifies, forming a layered structure of the composite silicone decorative sheet 100 that integrates with the silicone layer 10, the first hot-melt layer 20, and the second hot-melt layer 30. This not only accelerates the overall process efficiency but also eliminates the need for adhesive application between the first hot-melt layer 20 and the silicone layer 10, and between the second hot-melt layer 30 and the silicone layer 10, saving on chemical adhesives and making the overall process of the composite silicone decorative sheet manufacturing method more environmentally friendly.

[0069] Furthermore, the first hot-melt layer 20 and the second hot-melt layer 30 are bonded to the first surface 11 and the second surface 12 of the silicone layer 10 in the composite silicone decorative sheet 100. When the composite silicone decorative sheet 100 is actually attached to the decorative surface of an item, the composite silicone decorative sheet 100 can be jointly bonded to the decorative surface of the item by the first hot-melt layer 20 and the second hot-melt layer 30 in a hot-melt manner, and the pattern presented by the silicone layer 10 is exposed on the item. Thus, the structural design of the composite silicone decorative sheet 100 makes it easy to attach to the item as decoration.

[0070] Please see Figure 10 The shoe component 300 provided in another preferred embodiment of the present invention uses the aforementioned composite silicone trim 100 as an example. The shoe component 300 includes an upper 310 and a sole 320.

[0071] The upper 310 has an outer peripheral surface 3101, and the upper 310 has a fitting groove 3102 on the upper part of the outer peripheral surface 3101 corresponding to the shape of the composite silicone trim 100, such as... Figures 10-12 As shown, the fitting groove 3102 has an open end 3102a and a closed end 3102b disposed opposite to each other. The open end 3102a faces the sole 320. The upper 310 has a fixing part 3103 on the outer peripheral surface 3101. The fixing part 3103 correspondingly covers the closed end 3102b.

[0072] The sole 320 is attached to the bottom of the upper 310. The sole 320 has a ring sidewall 3201 surrounding the outer peripheral surface 3101 of the upper 310, and the open end 3102a of the fitting groove 3102 is covered by the ring sidewall 3201.

[0073] like Figure 10 ,Figure 11 As shown, the composite silicone trim 100 is disposed between the upper 310 and the sole 320. The first hot-melt layer 20 of the composite silicone trim 100 is bonded to the circumferential sidewall 3201 of the sole 320, and the second hot-melt layer 30 of the composite silicone trim 100 is bonded to the outer peripheral surface 3101 of the upper 310. The silicone layer 10 is exposed on the upper 310. Please refer to further details. Figure 11 , Figure 12 In this embodiment, the composite silicone trim 100 is housed in the bonding groove 3102. The first hot-melt layer 20 is located at the open end 3102a of the bonding groove 3102 and is hot-melt bonded to the circumferential sidewall 3201 of the sole 320. The second hot-melt layer 30 is hot-melt bonded to the outer peripheral surface 3101 of the upper 310. Neither the first hot-melt layer 20 nor the second hot-melt layer 30 contains an adhesive between itself and the circumferential sidewall 3201 and the outer peripheral surface 3101, respectively. The first surface 11 of the silicone layer 10 is exposed in the bonding groove 3102. The end of the silicone layer 10 opposite to the first hot-melt layer 20 contacts the closed end 3102b of the bonding groove 3102 and is fixed by the fixing part 3103. The fixing part 3103 partially covers the first surface 11 of the silicone layer 10.

[0074] Accordingly, when the composite silicone decorative piece 100 is applied to the shoe component 300, the first hot-melt layer 20 and the second hot-melt layer 30 are respectively bonded to the annular sidewall 3201 of the sole 320 and the outer peripheral surface 3101 of the upper 310, so that the composite silicone decorative piece 100 is sandwiched between the upper 310 and the sole 320. The application of the composite silicone decorative piece 100 to the shoe component 300 does not involve the use of adhesives, saving on glue application costs. Furthermore, the fixing part 3103 of the upper 310 abuts against one end of the first surface 11 of the silicone layer 10, further enhancing the effect of fixing the composite silicone decorative piece 100 to the upper 310, so that the pattern of the silicone layer 10 can be exposed on the upper 310 of the shoe component 300 as decoration.

[0075] The above description is only a preferred and feasible embodiment of the present invention. Any equivalent changes made by applying the present invention specification and claims should be included within the patent scope of the present invention.

Claims

1. A method for manufacturing a composite silica gel sheet, comprising the steps of: S1. providing a mold having a mold cavity with a first cavity portion and a second cavity portion in communication, the first cavity portion defining a placement area in the mold; S2. providing a first hot melt layer, the first hot melt layer being placed in the mold cavity of the mold corresponding to the placement area and located in the first cavity portion and the second cavity portion; S3. injecting a liquid silica gel into the mold cavity of the mold from the second cavity portion to fill the first cavity portion, the liquid silica gel filling the second cavity portion and covering the first hot melt layer; S4. providing a second hot melt layer, the second hot melt layer being placed in the second cavity portion of the mold and laid on the liquid silica gel; S5. heating the mold, the first hot melt layer and the second hot melt layer being hot melted in the mold cavity to bond the liquid silica gel; and S6. cooling the mold to solidify the first hot melt layer and the second hot melt layer, and the liquid silica gel forming a silica gel layer between the first hot melt layer and the second hot melt layer, thereby obtaining a composite silica gel sheet.

2. The method for manufacturing a composite silica gel sheet according to claim 1, wherein the mold has a convex step portion in the placement area, the first hot melt layer being placed on the convex step portion, and the first hot melt layer being located in the second cavity portion.

3. The method for manufacturing a composite silica gel sheet according to claim 1, wherein the heating temperature of the mold is between 140°C and 180°C, the material of the first hot melt layer and the material of the second hot melt layer are selected from thermoplastic polyurethane, respectively, and neither the first hot melt layer nor the second hot melt layer includes a surface treatment agent between the silica gel layer.

4. A composite silica gel sheet, comprising: a silica gel layer having a first surface and a second surface on opposite sides, the silica gel layer defining a mounting area on the first surface; a first hot melt layer hot melt-bonded to the first surface of the silica gel layer and located in the mounting area; and a second hot melt layer hot melt-bonded to the second surface of the silica gel layer.

5. The composite silica gel sheet according to claim 4, wherein the silica gel layer defines a revealed area adjacent to the mounting area, the silica gel layer has a recess corresponding to the placement area, the first hot melt layer is located in the recess and does not protrude from the first surface of the revealed area, and the second hot melt layer is laid on the silica gel layer corresponding to the shape of the second surface.

6. The composite silica gel sheet according to claim 5, wherein the recess has a flat surface and a side surface connecting between the flat surface and the first surface, the silica gel layer has a circumferential surface located between the first surface and the second surface and connecting the periphery of the flat surface, the first hot melt layer has a contact wall abutting the side surface of the recess, the first hot melt layer has a surrounding wall connecting two ends of the contact wall, when the first hot melt layer is bonded to the flat surface of the recess, the surrounding wall is aligned with the periphery of the flat surface and flushes with the circumferential surface of the silica gel layer.

7. The composite insole patch of claim 4, wherein the material of the first hot melt layer and the material of the second hot melt layer are each selected from thermoplastic polyurethane, and neither the first hot melt layer nor the second hot melt layer includes a surface treatment agent between the first hot melt layer and the second hot melt layer and the silicone layer, respectively.

8. A shoe component comprising: an upper having an outer periphery; a sole coupled to a bottom of the upper, the sole having a ring sidewall surrounding the outer periphery of the upper; and the composite insole patch of claim 4 disposed between the upper and the sole, the first hot melt layer coupled to the ring sidewall of the sole, the second hot melt layer coupled to the outer periphery of the upper, and the silicone layer exposed on the upper.

9. The shoe component of claim 8, wherein the upper has a fit groove on the outer periphery corresponding to a shape of the composite insole patch, the composite insole patch received in the fit groove, wherein the first hot melt layer is hot melt coupled to the ring sidewall, the second hot melt layer is hot melt coupled to the outer periphery, and neither the first hot melt layer nor the second hot melt layer includes an adhesive between the first hot melt layer and the second hot melt layer and the ring sidewall and the outer periphery, respectively, the first face of the silicone layer exposed in the fit groove.

10. The shoe component of claim 9, wherein the fit groove has an open end and a closed end disposed opposite each other, the open end facing the sole and shielded by the ring sidewall, the upper having a securing portion on the outer periphery corresponding to shield the closed end, when the composite insole patch is received in the fit groove, the first hot melt layer is at the open end and coupled to the ring sidewall, and an end of the silicone layer opposite the first hot melt layer contacts the closed end and is secured by the securing portion, and the securing portion partially obscures the first face of the silicone layer.

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