Waterproof shoe joint waterproof structure and waterproof shoe joint waterproof treatment process

Abstract

The invention relates to the technical field of waterproof shoe structures and production processes, in particular to a waterproof shoe joint waterproof structure and a waterproof shoe joint waterproof treatment process, a waterproof shoe comprises a vamp with a vamp net foot edge and a lapped bottom lining with a bottom lining edge, and a joint seam is arranged between the vamp net foot edge and the bottom lining edge. The joint seam is filled and blocked through hot melt adhesive fusion infiltration; or the vamp is provided with a splicing seam, a joint seam is arranged between the net foot edge of the vamp and the edge of the bottom lining, and the splicing seam and the joint seam are connected through hot melt adhesive filling and plugging. The process comprises the following steps: splicing the hot melt adhesive tape along the bundle, and sewing the hot melt adhesive tape on the edge of the bottom lining; splicing and jointing to obtain a three-dimensional upper surface; baking the three-dimensional upper surface; pressing the three-dimensional upper surface; the bottom surface is covered with a film composite layer for heating activation, and the film composite layer covers the hot melt adhesive; and pressing the composite shaped vamp. The invention provides a novel waterproof writing structure and a waterproof process, which can effectively prevent water penetration, and the process is simple and easy to operate.

Description

Technical Field

[0001] The invention relates to the technical field of waterproof shoe structure and production process, in particular to the waterproof structure and waterproof treatment process of waterproof shoes. Background Art

[0002] Waterproof shoes are a feature of shoes that consumers often hear about in recent years. However, some of the waterproof shoes currently promoted for daily wear are still relatively shallow in waterproofness, and some can only achieve instantaneous waterproof penetration on the upper. This cannot pass the waterproof testing standards for related products in the industry. Professional waterproof shoes must meet the standards not only in static waterproof testing, but also in dynamic waterproof testing.

[0003] At present, professional waterproof shoe structures usually combine a waterproof sock layer in the shoe during shoe production. The waterproof sock layer, as the name implies, has a sock-like structure that can wrap the entire foot and achieve a waterproof effect of preventing external water from invading the interior. After years of production, the waterproof shoes with this waterproof structure are still mainstream and use this sock-like structure to achieve waterproofness. However, the waterproof shoes with this sock-like waterproof structure have the following problems: 1. The waterproof sock layer achieves the waterproofness of the fabric by compounding a waterproof membrane on the fabric. The waterproof membrane has a good waterproof effect, but the waterproof membrane also has poor air permeability, which affects the breathability and comfort of the shoes; 2. The waterproof membrane may be broken or punctured during use, which will directly cause the waterproof shoes to be permanently waterproof. Damage cannot be repaired; 3. The waterproof sock layer must be produced in advance and tested for waterproofing before the waterproof shoes are manufactured, and can only be used after passing the test; 4. The waterproof sock layer is usually in the form of a sheet that needs to be partially butted and spliced ​​to form a sock structure. After the waterproof shoes are made and used, there is a possibility of leakage at the butt joints; 5. The dynamic waterproof test times of this sock-type waterproof shoe cannot be broken through, that is, the waterproof performance cannot be further improved; 6. The existing waterproof shoes with sock-type waterproof structures have thick uppers and are not suitable for the setting and application of some lightweight shoes; 7. This sock-type waterproof shoe may still have water penetration outside the waterproof membrane of the waterproof sock layer; 8. The entire production process of waterproof shoes with sock-type waterproof structures has many complicated steps, and it is difficult to improve the production efficiency and the production benefits of the enterprise.

[0004] In addition, with the development of science and technology and the research and development of new materials, some existing fabrics can also achieve waterproof effects through chemical process treatment. However, when such fabrics are used in shoes to make waterproof shoes, they still cannot achieve waterproofness at the uppers and joints of the shoes, and cannot pass static or dynamic waterproof tests. Therefore, the above-mentioned structural method is still used to produce waterproof shoes.

[0005] In view of this, the inventor of this case has devoted himself to research and development, improvement, trial production, experimentation and testing to address the existing problems, which resulted in this case. Summary of the invention

[0006] The purpose of the present invention is to provide a new waterproof structure, which can effectively prevent water penetration and thus solve the existing problems of a waterproof shoe seam waterproof structure.

[0007] Another object of the present invention is to provide a new waterproof treatment method, which can effectively achieve waterproof penetration and is a simple and easy-to-operate waterproof treatment process for waterproof shoe seams.

[0008] To achieve the above-mentioned purpose, the technical scheme of the present invention is: a waterproof shoe seam waterproof structure, the waterproof shoe comprises an upper with an upper mesh foot edge and a laban bottom lining joined with a bottom lining edge and the upper mesh foot edge, a joint seam is provided between the upper mesh foot edge and the bottom lining edge, the joint seam is melted, infiltrated, filled and sealed by hot melt adhesive, and is infiltrated and fused to connect the upper and the laban bottom lining; or, the upper has a splicing seam, the upper mesh foot edge and the bottom lining edge have a joint seam, the splicing seam and the joint seam are melted, infiltrated, filled and sealed by hot melt adhesive, and are infiltrated and fused to connect the upper and the laban bottom lining.

[0009] The edges of the upper and the laban insole on both sides of the joint seam form a waterproof bonding edge, and the hot melt adhesive covers the waterproof bonding edge and penetrates into the fusion bond to connect to the waterproof bonding edge; or, the edges of the upper and the laban insole on both sides of the joint seam form a waterproof bonding edge, and the hot melt adhesive covers the waterproof bonding edge and penetrates into the fusion bond to connect to the waterproof bonding edge; or, the edges of the upper and the laban insole on both sides of the joint seam and the edges of the upper on both sides of the splicing seam form a waterproof bonding edge, and the hot melt adhesive covers the waterproof bonding edge and penetrates into the fusion bond to connect to the waterproof bonding edge.

[0010] The outer side of the upper mesh foot edge and the laban bottom lining is also compounded with a compound layer of hot melt adhesive covered by corresponding joint seams.

[0011] A film layer is arranged on one side of the composite layer facing the Labang base liner.

[0012] The shoe upper is a water-repellent molecular waterproof shoe upper, and / or the laban underlay is a waterproof laban underlay.

[0013] A waterproof shoe seam waterproofing process, the process steps are as follows:

[0014] S1. Install a hot melt adhesive strip along the upper mesh foot edge of the shoe upper or the upper mesh foot edge and the splicing edge of the waterproof section, and install a hot melt adhesive strip along the edge of the lining of the laban lining;

[0015] S2, joining the stitching edges of the upper to form a stitching seam and joining the upper mesh edge of the upper to form a joining seam, or joining the upper mesh edge of the upper to form a joining seam to form a three-dimensional upper;

[0016] S3, placing the three-dimensional upper surface of the shoe last in a suitable device for baking, so that the hot melt adhesive strip on it is in a melted state;

[0017] S4. Place the three-dimensional upper with the hot-melt adhesive strip in a melted state in a suitable device for pressing, so that the hot-melt adhesive strip in a melted state can penetrate, fill and seal the joint seams after the joints are spliced, and penetrate and combine with the upper; and the hot-melt adhesive strip in a melted state can penetrate, fill and seal the joint seams and penetrate and combine with the upper and the laban base lining; or the hot-melt adhesive strip in a melted state can penetrate, fill and seal the joint seams and penetrate and combine with the upper and the laban base lining, so as to obtain a shaped upper.

[0018] Step S4 also includes S5 and S6,

[0019] S5, covering the outer bottom surface of the molded shoe upper with a composite film layer in a manner that at least covers the joint seam and the edge areas on both sides thereof, placing the molded shoe upper covered with the composite film layer in a suitable device for heating and activation, so that the hot melt adhesive on the molded shoe upper and the adhesive of the composite film layer are melted and combined together to obtain a composite molded shoe upper;

[0020] S6. Place the composite shaped upper in a suitable device for pressing.

[0021] The hot melt adhesive strip connected along the upper mesh foot edge or the splicing edge of the upper in step S1 has a thickness of 10-150 filaments and a width of 0.5-2.0 cm, and / or, the hot melt adhesive strip connected along the lining edge of the laban lining in step S1 has a thickness of 10-150 filaments and a width of 0.5-2.0 cm, and / or, the hot melt adhesive strip is a low-temperature hot melt adhesive strip with a melting point of 50-100 degrees.

[0022] The operation time from placing the shaped shoe upper covered with the rubber composite layer in a suitable device for heating and activation in step S5 to completing step S6 is within 8 seconds.

[0023] By adopting the above technical solution, the beneficial effects of the present invention are: the seams of waterproof shoes adopt the above structure and processing technology, which has the following advantages compared with the prior art:

[0024] 1. There can be no gaps in the seams, water will not penetrate, and the integrity of waterproof shoes will be better. It can not only easily meet the requirements of the testing standards, but also far exceed the current general testing standards of various countries.

[0025] 2. The upper can be made of new technological waterproof fabrics, which are not easy to break. Combined with the waterproof structure of the seams, the overall waterproof performance is greatly improved, and a very ideal waterproof effect can be achieved.

[0026] 3. The structure and processing technology are simpler, the production and processing operations are easier, and the controllability is high, which can reduce the difficulty of waterproof shoe production and greatly simplify the entire production process of waterproof shoes.

[0027] 4. The membrane-free design has good air permeability, is environmentally friendly and harmless, makes the shoes more comfortable to wear, and does not require any preliminary waterproof testing of the components.

[0028] 5. The waterproof shoes can be made lighter as a whole, and can be applied to waterproof shoes of different types and ages. The qualified rate of the products is high, and the range of waterproof shoes can be expanded.

[0029] 6. The simplified production process of the enterprise can save energy, reduce production costs, and greatly improve production efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0030] Figure 1 It is a schematic diagram of the expansion of the upper of a waterproof shoe according to the present invention;

[0031] Figure 2 The present invention relates to a schematic diagram of a waterproof shoe lining.

[0032] Figure 3 The invention discloses a schematic diagram of a waterproof shoe seam waterproof structure.

[0033] In the figure:

[0034] Upper 1; upper mesh foot edge 11; splicing edge 12;

[0035] Labang base 2; base edge 21; joint seam 3;

[0036] Joint seam 4; hot melt adhesive 5; waterproof adhesive edge 6; composite layer 7. DETAILED DESCRIPTION

[0037] In order to further explain the technical solution of the present invention, the present invention is described in detail below through specific embodiments.

[0038] This embodiment discloses a waterproof shoe seam waterproof structure, such as Figure 1 , Figure 2 and Figure 3As shown, the waterproof shoes include a shoe upper 1 with a shoe upper mesh foot edge 11 and a laban bottom lining 2 with a bottom lining edge 21 joined to the shoe upper mesh foot edge 11. The shoe upper 1 is put on an appropriate shoe last, and the laban bottom lining 2 is sewn or sutured to form a three-dimensional sock-like structure for human feet to wear. According to product design, the combination can be further processed to form a waterproof shoe product or a bottom composite sole component to form sports shoes, casual shoes and other shoes. Since this embodiment is a waterproof shoe product, the shoe upper 1 can be an upper of an existing waterproof structure, or an upper made of some new scientific and technological material waterproof fabrics, such as a water-repellent molecular fabric that can achieve better waterproof performance and is suitable for shoe upper applications. The laban bottom layer 2 can also be made of waterproof fabrics. The main improvement of this embodiment is the waterproof structure made of some gaps formed by the shoe upper 1 and the laban bottom lining 2 to form a three-dimensional shoe upper structure.

[0039] The gap formed by the three-dimensional upper structure formed by the fabric of the upper 1 usually includes a splicing seam 3 formed by the connection of the fabric sheet configuration. In addition, after the upper is configured, the bottom is enclosed to form a bottom opening, and the edge of the bottom opening is the upper mesh foot edge 11. A joint seam 4 is formed between the upper mesh foot edge 11 and the edge 21 of the lining. For some one-piece molded upper parts, there is no splicing seam 3, such as the upper products knitted by a knitting machine. As shown in the figure, the upper 1 of this embodiment is a sheet-like shape formed into a desired shape by splicing. After the configuration is completed, it includes a splicing seam 3 and a joint seam 4. There is a joint seam between the upper mesh foot edge and the edge of the lining. In the following description, the waterproof structure with two seams is described. If it is an upper structure without a splicing seam 3, it is relative to the waterproof structure with only a joint seam 4 shown in the figure.

[0040] As shown in the figure, the upper 1 has a splicing seam 3, and a joint seam 4 is provided between the upper mesh foot edge 11 and the lining edge 21. After the splicing or joining sewing or stitching is completed, water can directly penetrate into these seams, so waterproof processing is required for waterproof shoes. The waterproof structure of this embodiment is such that the splicing seam 3 and the joint seam 4 are melted, infiltrated, filled and sealed by hot melt adhesive 5, and infiltrated and melted to connect to the upper 1 or the upper 1 and the laban lining 2. The hot melt adhesive 5 has the characteristics of being heated and liquefied, being able to better penetrate into small holes, fill and seal gaps, and being able to better penetrate into the fabric and melt and solidify, that is, it can be well and stably connected to the upper 1 or the upper 1 and the laban lining 2, including the intersection of the splicing seam 3 and the joint seam 4. The hot melt adhesive 5 of the splicing seam 3 and the joint seam 4 can also be melted, infiltrated, filled and sealed into the intersection. According to experimental tests, the hot melt adhesive 5 should preferably be a low-temperature hot melt adhesive, which is easy to carry out the waterproof structure operation processing process and can avoid conflicts with other production processes and molding processing of other shoe parts during the production process. Preferably, the hot melt adhesive 5 is a low-temperature hot melt adhesive with a melting point of 50-100 degrees.

[0041] In the present embodiment, in order to improve the structural stability of the waterproof structure and improve the testability of the waterproof effect, the edges of the upper 1 and the laban base 2 on both sides of the joint seam 4 and the edges of the upper 1 on both sides of the splicing seam 3 form a waterproof bonding edge 6, and the hot melt adhesive 5 covers the waterproof bonding edge 6 and penetrates into the waterproof bonding edge 6 to be fused and connected. In this way, the hot melt adhesive 5 is extended to cover the waterproof bonding edge 6 to increase the fusion connection area, thereby effectively improving the structural stability of the waterproof structure. Under the condition of structural stability, the testability of the waterproof effect can naturally be improved.

[0042] The present embodiment further has a structure that the outer side of the upper mesh foot edge 11 and the laban bottom lining 2 is also compounded with a composite layer 7 covering the hot melt adhesive 5, especially the corresponding joint seam covers the hot melt adhesive 5. The composite layer 7 covers the hot melt adhesive 5, which can prevent the hot melt adhesive 5 from adhering to impurities during the production and processing process, and is also conducive to the subsequent waterproof shoe production process and the stability and durability of the overall structure of the shoe. In order to facilitate smooth and firm bonding, a film layer can be provided on the side of the composite layer 7 facing the laban bottom lining 2. A low-temperature non-woven film with a melting point of 50-100 degrees can be used. The composite layer 7 can be heated, melted, pressed and connected at the same time as the hot melt adhesive 5 is heated, melted and pressed. Other materials that can achieve the desired effect can also be used instead.

[0043] The other parts of the waterproof shoe structure are not improvements of the present invention, and will not be described in detail here. The non-disclosure of the other parts of the structure will not affect the clear understanding of the technical solution by those skilled in the art. The beneficial effects of the above structural setting and its advantages over the existing technical structure can be seen in the above beneficial effects section, and will not be repeated here.

[0044] The following discloses a waterproof treatment process for waterproof shoe seams provided by the waterproof shoe waterproof structure of the present invention, and the treatment process steps are as follows:

[0045] S1, along the upper mesh foot edge 11 of the upper 1 and the splicing edge 12 of the upper 1 in the waterproof section (the waterproof section to be set according to the needs, such as Figure 1 As shown in the figure, in the part of the splicing edge 12, a small section at the end does not need to be waterproofed, and the other parts are the sections that need to be waterproofed) are connected and set with a hot melt adhesive strip 5 (which can be sewn, tied with edge technology, etc.), and a hot melt adhesive strip 5 is connected and set along the edge 21 of the lining of the Labang lining 2.

[0046] In this step, after the trial production test data analysis, preferably, the thickness of the hot melt adhesive strip 5 bundled along the upper mesh foot edge 11 and / or the splicing edge 12 of the upper 1 is 10-150 filaments (such as in the test, the thickness of the hot melt adhesive strip 5 can meet the required requirements according to the thickness of the upper and will not cause redundancy), and the width is 0.5-2.0cm. The thickness of the hot melt adhesive strip along the edge of the lining of the Labang lining is 10-150 filaments and the width is 0.5-2.0cm. It can achieve the required and ideal infiltration, filling, blocking and melting effect and the stability of the melting connection area. Too wide and too thick may cause waste of materials and redundant production of waterproof shoes. In addition, the hot melt adhesive strip should be selected from a low-temperature hot melt adhesive strip with a melting point of 50-100 degrees, which is easy to carry out the waterproof structure operation and processing process, and can avoid conflicts with other production processes and other shoe parts molding and processing during the production process.

[0047] S2. Splice and connect the stitching edges 12 of the upper 1 (such as sewing) to form a stitching seam and join and connect the upper mesh edge 11 of the upper 1 with the lining edge 21 of the laban lining 2 (laban stitching) to form a joining seam (if there is no splicing edge to be spliced ​​in practice, only join and connect the upper mesh edge of the upper with the lining edge of the laban lining to form a joining seam), so as to obtain a three-dimensional upper.

[0048] S3. Place the three-dimensional upper surface of the shoe last in a suitable device (such as a molding oven) for baking, so that the hot melt adhesive strip on the upper surface is in a melted state.

[0049] S4. Place the three-dimensional upper with the hot-melt adhesive strip in a melted state in a suitable device (a cover-type press or a wall-type press) for pressing, so that the hot-melt adhesive strip in a melted state can penetrate, fill and seal the joint seams after the joints are spliced, and penetrate and combine with the upper; the hot-melt adhesive strip in a melted state can penetrate, fill and seal the joint seams and penetrate and combine with the upper and the laban base lining; or the hot-melt adhesive strip in a melted state can penetrate, fill and seal the joint seams and penetrate and combine with the upper and the laban base lining; the hot-melt adhesive strip can also be pressed flat against the upper and the laban base lining to obtain a shaped upper.

[0050] Through the above steps, a waterproof upper with joint seams and joint seams that can effectively prevent water penetration can be obtained. In order to further improve the waterproof structure of the upper and product quality and facilitate the production process, the present embodiment may further include the following S5 and S6 after step S4, specifically:

[0051] S5. Cover the outer bottom surface of the molded shoe upper with a film composite layer in a manner that at least covers the joint seam and the edge areas on both sides thereof, and place the molded shoe upper covered with the film composite layer in a suitable device for heating and activation, so that the hot melt adhesive on the molded shoe upper and the adhesive of the film composite layer are melted and combined together to obtain a composite molded shoe upper; the film composite layer in this embodiment is a low-temperature non-woven film with a melting point of 50-100 degrees.

[0052] S6. Placing the composite shaped upper in a suitable device (cover-type press or wall-type press) for pressing can make the film composite layer and the shaped upper better connected, and can also make the film composite layer more evenly laminated to the bottom surface of the shaped upper, and can also flatten the hot melt adhesive on the composite shaped upper.

[0053] The operation time from placing the shaped shoe upper covered with the film composite layer in a suitable device for heating and activation in step S5 to completing step S6 should be within 8 seconds to ensure that the hot melt adhesive in all parts is still in the melting stage during pressing, so as to be able to perform a more ideal pressing operation and perform secondary reinforcement on the above-mentioned infiltrated filling and sealing gaps.

[0054] In summary, in addition to the beneficial effects mentioned in the above beneficial effects section, the above-mentioned waterproof shoe seam waterproofing treatment process also has the following advantages: 1. Simple operation 2. Greatly reduces and delays the risk and time of water leaking into the shoe cavity from the material interlayer after the shoe is pasted on the sole; 3. After the low-temperature hot melt adhesive is molded and heated and activated, it can weld the seams and seal the gaps between the materials very well.

[0055] The waterproof structure of the waterproof shoe seam and the waterproof treatment process of the waterproof shoe seam of the present invention raise the sockless waterproof process to a new height compared with the prior art, and the whole process can be visually inspected for its effect, ensuring the qualified rate of the finished shoes. The dynamic waterproof shoes produced by traditional technology are complex and have low performance, and it is difficult to significantly exceed 25,000 times in the dynamic waterproof test. The structural molding process of the present invention is combined with the waterproof upper fabric of new scientific and technological materials, which can effectively improve the detection value and improve production efficiency; a normally configured molding line of existing sock-type dynamic waterproof shoes can only produce about 1,500 pairs of finished products, while the technical solution of this application invention can produce more than 2,200 pairs on the molding production line with the same number of people; the number of dynamic detection is also increased, and the number of dynamic waterproof tests can generally reach more than 50,000 times, and many structures of shoes can reach more than 100,000 dynamic tests.

[0056] The above embodiments and drawings do not limit the product form and style of the present invention. Any appropriate changes or modifications made by ordinary technicians in the relevant technical field should be deemed to be within the patent scope of the present invention.

Claims

1. A waterproof shoe seam waterproof structure, the waterproof shoe comprising a shoe upper with a shoe upper mesh foot edge and a laban bottom lining having a bottom lining edge joined to the shoe upper mesh foot edge, characterized in that: A joint seam is provided between the edge of the upper mesh and the edge of the bottom lining, and the joint seam is sealed by hot melt adhesive melting, infiltrating, filling and sealing, and infiltrating and melting to connect the upper and the laban bottom lining; Alternatively, the shoe upper has a stitching seam, and a joint seam is provided between the shoe upper mesh foot edge and the lining edge. The stitching seam and the joint seam are melted, infiltrated, filled, sealed, and infiltrated and fused to connect the shoe upper and the laban lining.

2. A waterproof shoe seam waterproof structure as claimed in claim 1, characterized in that: The edges of the upper and the laban insole on both sides of the joint seam form a waterproof bonding edge, and the hot melt adhesive covers the waterproof bonding edge and penetrates into the fusion bond to connect to the waterproof bonding edge; or, the edges of the upper and the laban insole on both sides of the joint seam form a waterproof bonding edge, and the hot melt adhesive covers the waterproof bonding edge and penetrates into the fusion bond to connect to the waterproof bonding edge; or, the edges of the upper and the laban insole on both sides of the joint seam and the edges of the upper on both sides of the splicing seam form a waterproof bonding edge, and the hot melt adhesive covers the waterproof bonding edge and penetrates into the fusion bond to connect to the waterproof bonding edge.

3. A waterproof shoe seam waterproof structure as claimed in claim 1 or 2, characterized in that: The outer side of the upper mesh foot edge and the laban bottom lining is also compounded with a compound layer of hot melt adhesive covered by a corresponding joint seam.

4. A waterproof shoe seam waterproof structure as claimed in claim 3, characterized in that: A film layer is arranged on one side of the composite layer facing the Labang base liner.

5. A waterproof shoe seam waterproof structure as claimed in claim 1 or 2, characterized in that: The shoe upper is a water-repellent molecular waterproof shoe upper, and / or the laban underlay is a waterproof laban underlay.

6. A waterproof shoe seam waterproof structure as claimed in claim 4, characterized in that: The shoe upper is a water-repellent molecular waterproof shoe upper, and / or the laban underlay is a waterproof laban underlay.

7. A waterproof shoe seam waterproofing process, characterized in that: The processing steps are as follows: S1. Install a hot melt adhesive strip along the upper mesh foot edge of the shoe upper or the upper mesh foot edge and the splicing edge of the waterproof section, and install a hot melt adhesive strip along the edge of the lining of the laban lining; S2, joining the stitching edges of the upper to form a stitching seam and joining the upper mesh edge of the upper to form a joining seam, or joining the upper mesh edge of the upper to form a joining seam to form a three-dimensional upper; S3, placing the three-dimensional upper surface of the shoe last in a suitable device for baking, so that the hot melt adhesive strip on it is in a melted state; S4. Place the three-dimensional upper with the hot-melt adhesive strip in a melted state in a suitable device for pressing, so that the hot-melt adhesive strip in a melted state can penetrate, fill and seal the joint seams after the joints are spliced, and penetrate and combine with the upper; and the hot-melt adhesive strip in a melted state can penetrate, fill and seal the joint seams and penetrate and combine with the upper and the laban base lining; or the hot-melt adhesive strip in a melted state can penetrate, fill and seal the joint seams and penetrate and combine with the upper and the laban base lining, so as to obtain a shaped upper.

8. A waterproof shoe seam waterproofing process as claimed in claim 7, characterized in that: Step S4 also includes S5 and S6, S5, covering the outer bottom surface of the molded shoe upper with a composite film layer in a manner that at least covers the joint seam and the edge areas on both sides thereof, placing the molded shoe upper covered with the composite film layer in a suitable device for heating and activation, so that the hot melt adhesive on the molded shoe upper and the adhesive of the composite film layer are melted and combined together to obtain a composite molded shoe upper; S6. Place the composite shaped upper in a suitable device for pressing.

9. A waterproof shoe seam waterproofing process as claimed in claim 7 or 8, characterized in that: The hot melt adhesive strip connected along the upper mesh foot edge or the splicing edge of the upper in step S1 has a thickness of 10-150 filaments and a width of 0.5-2.0 cm, and / or, the hot melt adhesive strip connected along the lining edge of the laban lining in step S1 has a thickness of 10-150 filaments and a width of 0.5-2.0 cm, and / or, the hot melt adhesive strip is a low-temperature hot melt adhesive strip with a melting point of 50-100 degrees.

10. A waterproof shoe seam waterproofing process as claimed in claim 8, characterized in that: The operation time from placing the shaped shoe upper covered with the rubber composite layer in a suitable device for heating and activation in step S5 to completing step S6 is within 8 seconds.

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