Crystal mark attaching method for shoe sole

Abstract

The invention relates to the technical field of crystal marks, and provides a crystal mark laminating method for a sole, which comprises the following steps: setting the temperature of drying a crystal mark to be 80-85 DEG C, baking an insole laminated with the crystal mark under the condition of 70-75 DEG C, and then laminating by a press to keep the softness of the crystal mark; the hollow part consistent with the crystal mark in size is arranged at the position, corresponding to the crystal mark, of the mold, so that the crystal mark is prevented from being damaged while the attaching strength between the crystal mark and the insole reaches the standard.

Description

Technical Field

[0001] The present invention relates to the technical field of crystal labels, and particularly relates to a method for attaching a crystal label to a shoe sole. Background Art

[0002] As a personalized decoration, crystal labels have been widely used in daily necessities such as clothing, shoes, hats, and luggage due to their diverse graphic styles and flexible and convenient use, and are deeply loved by consumers.

[0003] For a shoe sole with a crystal label, during the process of attaching the crystal label to the midsole, it generally needs to be pressed by a press to increase the bonding strength. However, since the crystal label itself is relatively fragile, it is easily damaged under the pressure of the press; if not pressed by the press, the bonding strength between the crystal label and the midsole is insufficient, and it is easy to delaminate, thereby affecting the use effect and service life of the crystal label.

[0004] In view of this, the inventor of this case conducted in-depth research on the above problems, and thus this case was born. Summary of the Invention

[0005] The purpose of the present invention is to provide a method for attaching a crystal label to a shoe sole, so as to avoid damage to the crystal label while ensuring that the bonding strength between the crystal label and the midsole meets the standard.

[0006] To achieve the above purpose, the present invention adopts the following technical solutions: A method for attaching a crystal label to a shoe sole, comprising the following steps: S1: Uniformly coat a treatment agent on the bonding surface of the crystal label, dry it, and then uniformly coat an adhesive on the bonding surface of the crystal label, and dry it; the drying temperature is 80 - 85°C; S2: Uniformly coat a treatment agent on the bonding part of the midsole, dry it, and then uniformly coat an adhesive on the bonding part of the midsole, and dry it; S3: Attach the crystal label to the midsole to obtain a midsole with a crystal label attached, and bake it under the condition of 70 - 75°C; S4: Place the midsole with the crystal label attached into the cavity of a mold, and press it through a press; the inner cavity of the mold is adapted to the midsole, and the mold is provided with a hollow part with the same size as the crystal label corresponding to the position of the crystal label.

[0007] As a preferred mode of the present invention, the crystal label includes a bottom plate layer, a soft layer, and a coating layer that coats the soft layer on the bottom plate layer. The bonding surface is the lower surface of the bottom plate layer. The soft layer can be made of SEBS material, and the bottom plate layer can be made of TPU material. The treatment agent in S1 is a TPU treatment agent.

[0008] As a preferred embodiment of the present invention, the drying temperature in S2 is 65 to 75 °C.

[0009] As a preferred embodiment of the present invention, the mold is made of soft PVC material.

[0010] As a preferred embodiment of the present invention, the pressing pressure of the press is 25 to 45 N, and the time is 10 to 15 S.

[0011] As a preferred embodiment of the present invention, the press is a hydraulic press.

[0012] The present invention has the following beneficial effects: By setting the drying temperature of the crystal label to 80 to 85 °C, baking the insole with the crystal label attached under the condition of 70 to 75 °C and then pressing it by a press, the softness of the crystal label is maintained; a hollow part with the same size as the crystal label is provided at the position corresponding to the crystal label on the mold to prevent the crystal label from being damaged during the pressing process of the press. Description of the Drawings

[0013] Figure 1 It is a schematic cross-sectional view of the crystal label described in the present invention; Figure 2 It is a schematic diagram of the steps of the method for attaching a crystal label to a shoe sole described in the present invention; Description of the Reference Numerals: 10. Bottom plate layer; 11. Soft layer; 12. Coating layer. Detailed Embodiments

[0014] In order to make the purpose, technical solutions and advantages of the present invention clearer, the present invention will be further described in detail below with reference to the drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present invention and are not used to limit the present invention. Embodiment

[0015] A method for attaching a crystal label to a shoe sole, referring to Figure 2 , includes the following steps: S1: Uniformly coat the treatment agent on the bonding surface of the crystal label, dry it, and then uniformly coat the adhesive on the bonding surface of the crystal label, and dry it; the drying temperature is 80 °C.

[0016] S2: Uniformly coat the treatment agent on the bonding part of the insole, dry it, and then uniformly coat the adhesive on the bonding part of the insole, and dry it; the drying temperature is 65 °C.

[0017] S3: Attach the crystal label to the insole to obtain an insole with a crystal label attached, and bake it under the condition of 70 °C.

[0018] S4: Place the insole with the crystal label attached into the mold cavity and press it through a hydraulic press. The pressure is 25 N and the time is 10 s.

[0019] The order of steps S1 and S2 can be swapped and is not limited to Figure 2 the illustrated embodiments.

[0020] Referring to Figure 1 , the crystal label includes a bottom plate layer, a soft layer, and a coating layer that coats the soft layer on the bottom plate layer. The bonding surface in step S1 is the lower surface of the bottom plate layer. The soft layer can be made of SEBS material, the bottom plate layer can be made of TPU material, and the treatment agent in S1 is a TPU treatment agent.

[0021] In step S1, the temperature for drying the crystal label is set at 80°C, and in step S3, the insole with the crystal label attached is baked at 70°C. This is to make the soft layer of the crystal label in a molten state at high temperature so that the crystal label remains soft, making it more difficult to break during the subsequent press fitting process. Baking the insole with the crystal label attached at 70°C can be baking the entire insole at 70°C or baking a part of the insole including the part where the crystal label is attached at 70°C.

[0022] In step S2, the bonding part of the insole is the part on the insole that fits with the crystal label. After attaching the crystal label to the insole in step S3, the bonding part of the insole contacts the bonding surface of the crystal label.

[0023] In step S4, the mold can be made of soft PVC material and its inner cavity is adapted to the insole. After placing the insole with the crystal label attached into the mold cavity, the mold is provided with a hollow part corresponding to the crystal label part and having the same size as the crystal label to prevent the crystal label from breaking during the press fitting process by the press. In this embodiment, a hydraulic press is used, which has more balanced and gentle pressure compared to traditional presses.

[0024] By bonding the insole and the crystal label through the above method, the bonding strength meets the standard and the crystal label is not damaged. Embodiment

[0025] A method for attaching a crystal label to a shoe sole, referring to Figure 2 , includes the following steps: S1: Uniformly coat the treatment agent on the bonding surface of the crystal label, dry it, and then uniformly coat the adhesive on the bonding surface of the crystal label and dry it. The drying temperature is 85°C.

[0026] S2: Uniformly coat the treatment agent on the bonding part of the insole, dry it, and then uniformly coat the adhesive on the bonding part of the insole and dry it. The drying temperature is 75°C.

[0027] S3: Attach the crystal label to the midsole to obtain a midsole with the crystal label attached, and bake it under the condition of 75°C.

[0028] S4: Place the midsole with the crystal label attached into the mold cavity, and press it through a hydraulic press with a pressure of 45 N and a time of 15 s.

[0029] The order of steps S1 and S2 can be interchanged, not limited to Figure 2 the illustrated embodiment.

[0030] Referring to Figure 1 , the crystal label includes a bottom plate layer, a soft layer, and a coating layer that coats the soft layer on the bottom plate layer. The bonding surface in step S1 is the lower surface of the bottom plate layer. The soft layer can be made of SEBS material, the bottom plate layer can be made of TPU material, and the treatment agent in S1 is a TPU treatment agent.

[0031] In step S1, the temperature for drying the crystal label is set at 85°C, and in step S3, the midsole with the crystal label attached is baked under the condition of 75°C, so that the soft layer of the crystal label is in a molten state at high temperature and the crystal label remains soft, making it more difficult to break during the subsequent press fitting process; baking the midsole with the crystal label attached under the condition of 70°C can mean baking the entire midsole under the condition of 70°C or baking a part of the midsole including the part where the crystal label is attached under the condition of 70°C.

[0032] The bonding part of the midsole in step S2 is the part of the midsole that is bonded to the crystal label. After the crystal label is bonded to the midsole in step S3, the bonding part of the midsole contacts the bonding surface of the crystal label.

[0033] The mold in step S4 can be made of soft PVC material, and its inner cavity is adapted to the midsole; after placing the midsole with the crystal label attached into the mold cavity, the mold is provided with a hollow part with the same size as the crystal label corresponding to the crystal label part to prevent the crystal label from breaking during the press fitting process through the press; in this embodiment, a hydraulic press is used, which applies pressure more evenly and gently compared to a traditional press.

[0034] By bonding the midsole and the crystal label through the above method, the bonding strength meets the standard and the crystal label is not damaged. Embodiment

[0035] A method for bonding a crystal label for a shoe sole, referring to Figure 2 , includes the following steps: S1: Uniformly coat a treatment agent on the bonding surface of the crystal label, dry it, and then uniformly coat an adhesive on the bonding surface of the crystal label, and dry it; the drying temperature is 83°C.

[0036] S2: Uniformly coat the treatment agent on the bonding part of the midsole, dry it, and then uniformly coat the adhesive on the bonding part of the midsole and dry it; the drying temperature is 70°C.

[0037] S3: Attach the crystal label to the midsole to obtain a midsole with a crystal label attached, and bake it under the condition of 73°C.

[0038] S4: Place the midsole with the crystal label attached into the mold cavity and press it through a hydraulic press, with a pressure of 35N and a time of 13S.

[0039] The step order of S1 and S2 can be swapped, not limited to Figure 2 the illustrated embodiment.

[0040] Referring to Figure 1 , the crystal label includes a bottom plate layer, a soft layer, and a coating layer that coats the soft layer on the bottom plate layer. The bonding surface in step S1 is the lower surface of the bottom plate layer. The soft layer can be made of SEBS material, the bottom plate layer can be made of TPU material, and the treatment agent in S1 is a TPU treatment agent.

[0041] In step S1, the drying temperature of the crystal label is set to 83°C, and in step S3, the midsole with the crystal label attached is baked under the condition of 73°C, so that the soft layer of the crystal label is in a molten state at high temperature and the crystal label remains soft, making it more difficult to break during the subsequent press fitting process; baking the midsole with the crystal label attached under the condition of 70°C can be baking the entire midsole under the condition of 70°C, or baking a part of the midsole including the part where the crystal label is attached under the condition of 70°C.

[0042] The bonding part of the midsole in step S2 is the part of the midsole that is bonded to the crystal label. After the crystal label is bonded to the midsole in step S3, the bonding part of the midsole contacts the bonding surface of the crystal label.

[0043] The mold in step S4 can be made of soft PVC material, and its inner cavity is adapted to the midsole; after the midsole with the crystal label attached is placed into the mold cavity, the mold is provided with a hollow part corresponding to the crystal label part and having the same size as the crystal label to prevent the crystal label from breaking during the press fitting process through the press; in this embodiment, a hydraulic press is used, which applies pressure more evenly and gently compared to a traditional press.

[0044] Comparative Example 1 The difference between Comparative Example 1 and Example 1 is that in step S3, the step of baking under the condition of 70°C is removed; the mold does not have a hollow part corresponding to the crystal label part and having the same size as the crystal label.

[0045] Comparative Example 2 The difference between Comparative Example 2 and Example 1 is that: in step S3, the step of baking at 70° C. is removed; the part of the mold corresponding to the crystal mark is not provided with a hollow part with the same size as the crystal mark, but the crystal mark is protected with a double layer of foam cotton.

[0046] The test results of the bonding strength between the midsole and the crystal label and the defective rate of the crystal label in Examples 1 to 3 and Comparative Examples 1 to 2 are shown in Table 1.

[0047] Table 1 Test results of the bonding strength and defect rate between the midsole and the crystal label in the examples and comparative examples Test Items Example 1 Example 2 Example 3 Comparative Example 1 Comparative Example 2 Bonding Strength Qualified Qualified Qualified Qualified Qualified Defective Rate 0 0 0 30% 20% As can be seen from Table 1, the crystal label bonding method of the present invention can achieve the goal of ensuring that the bonding strength between the crystal label and the midsole meets the standard while avoiding the crystal label from being damaged. The defective rate of the crystal label in Comparative Examples 1 to 2 is higher than that in Examples 1 to 3, indicating that baking the midsole bonded with the crystal label at 70 to 75°C before being pressed by the press, and providing a hollow portion on the mold corresponding to the crystal label position with the same size as the crystal label, can effectively avoid the crystal label from being damaged during the pressing process.

[0048] It should be understood that the above are only preferred implementations of the present invention, and the protection scope of the present invention is not limited to the above embodiments. All technical solutions under the concept of the present invention belong to the protection scope of the present invention.

Claims

1. A method for attaching crystal labels to shoe soles, characterized in that, Including the following steps: S1: Uniformly coat the treatment agent on the bonding surface of the crystal label, dry it, and then uniformly coat the adhesive on the bonding surface of the crystal label and dry it; the drying temperature is 80 - 85 °C; S2: Uniformly coat the treatment agent on the bonding part of the midsole, dry it, and then uniformly coat the adhesive on the bonding part of the midsole and dry it; S3: Bond the crystal label to the midsole to obtain a midsole with a crystal label bonded thereto, and bake it under the condition of 70 - 75 °C; S4: Place the midsole with the crystal label bonded thereto into the cavity of the mold and press it through a press; the inner cavity of the mold is adapted to the midsole, and the mold is provided with a hollow part corresponding to the crystal label part and having the same size as the crystal label.

2. The method for attaching a crystal label to a shoe sole according to claim 1, characterized in that The crystal label includes a bottom plate layer, a soft layer, and a coating layer that coats the soft layer on the bottom plate layer, and the bonding surface is the lower surface of the bottom plate layer.

3. The method for attaching a crystal label to a sole according to claim 1, characterized in that, The drying temperature in S2 is 65 - 75 °C.

4. The method for fitting a crystal label for a sole according to claim 1, wherein, The mold is made of soft PVC material.

5. The method for attaching a crystal label to a sole according to claim 1, characterized in that, The pressure of the press for pressing is 25 - 45 N, and the time is 10 - 15 s.

6. The method for fitting a crystal label to a sole according to claim 1, characterized in that The press is a hydraulic press.

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