Waterproof sock and processing method thereof

Abstract

The invention discloses a waterproof sock and a processing method thereof, and belongs to the technical field of socks, the waterproof sock comprises lining cloth, a waterproof breathable film, a double-sided hot melt adhesive film and an outer layer waterproof sock which are sequentially bonded from inside to outside; air holes are formed in the double-sided hot melt adhesive film; compared with the structure of a traditional waterproof sock, the waterproof sock has the advantages that the silk stockings on the inner layer are replaced with the cloth on the inner layer, so that the glue consumption during bonding can be obviously reduced while the bonding strength is guaranteed, and the overall air permeability and wearing comfort of the sock can be effectively improved; the double-sided hot melt adhesive film is arranged between the waterproof breathable film and the outer-layer waterproof sock sleeve, so that the waterproof breathable film and the outer-layer waterproof sock sleeve can be bonded by utilizing the characteristic that the hot melt adhesive film is heated to melt under the condition of not increasing the amount of glue, the overall breathability can be better ensured, and the bonding efficiency can be improved.

Description

Technical Field

[0001] The invention belongs to the technical field of socks, and in particular relates to a waterproof sock and a processing method thereof. Background Art

[0002] Waterproof shoes are a type of footwear widely used in outdoor sports, hiking or traveling on rainy days. With the continuous increase in application scenarios and the diversification of outdoor activities, people's requirements for waterproof performance, comfort, and production process of waterproof shoes are also constantly increasing.

[0003] For example, the Chinese invention patent with application number 201910821319.3 discloses a method for processing waterproof socks uppers, which uses two layers of stockings to make a waterproof liner. However, in actual use, it is found that this type of waterproof liner often has the following problems:

[0004] 1) Double-layer socks usually take a lot of time to knit, which increases the cost of production;

[0005] 2) As the stockings are relatively soft and highly elastic, it is difficult to fix them; at the same time, the yarn used to make the socks has a coarse D number (denier number) and a large amount of hair. In order to improve the bonding effect of the waterproof liner, a large amount of glue needs to be applied during bonding; as a result, the finished waterproof liner has a series of problems that affect wearing comfort, such as being airtight, hard in material, and heavy. Summary of the invention

[0006] The technical problem to be solved by the present invention is: how to provide a waterproof sock and a processing method thereof to improve the production and processing efficiency and the overall bonding strength.

[0007] In order to solve the above technical problems, the technical solution adopted by the present invention is:

[0008] A waterproof sock cover, comprising an inner lining fabric, a waterproof breathable film, a double-sided hot melt adhesive film and an outer waterproof sock cover which are sequentially bonded from inside to outside;

[0009] The double-sided hot melt adhesive film is provided with ventilation holes.

[0010] Another solution of the present invention is: a processing method for making the above-mentioned waterproof socks, comprising the following steps:

[0011] S1. Apply hot melt adhesive between the lining fabric and the waterproof breathable membrane, and hot press the lining fabric and the waterproof breathable membrane to obtain A;

[0012] S2, punching the double-sided hot melt adhesive film, and hot pressing the punched double-sided hot melt adhesive film and the waterproof breathable film A to obtain B;

[0013] S3, cutting out corresponding shoe body regions on B, and sewing the regions together to form a shoe;

[0014] S4. Glue the waterproof strip at the seam to complete the preparation of the waterproof liner.

[0015] The beneficial effects of the present invention are as follows: compared with the structure of traditional waterproof socks, the waterproof socks provided by the present invention can significantly reduce the amount of glue used during bonding while ensuring the bonding strength by replacing the inner silk stockings with the inner fabric, thereby effectively improving the overall air permeability and wearing comfort of the socks; and a double-sided hot-melt adhesive film with air holes is provided between the waterproof and breathable membrane and the outer waterproof socks, so that the two can be bonded together without increasing the amount of glue by utilizing the characteristic of the hot-melt adhesive film melting when heated, which can better ensure the overall air permeability and improve the bonding efficiency. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1 Shown is a schematic structural diagram of a waterproof sock according to a specific embodiment of the present invention;

[0017] Figure 2 The figure is a schematic structural diagram of an outer waterproof sock cover according to a specific embodiment of the present invention;

[0018] Description of labels:

[0019] 1. Lining fabric;

[0020] 2. Waterproof and breathable membrane;

[0021] 3. Double-sided hot melt adhesive film; 31. Breathable holes;

[0022] 4. Outer waterproof socks; 41. Cuff; 42. Heel; 43. Body; 44. Tongue; 45. Toe; 46. Seam of sole;

[0023] 5. Air;

[0024] 6. Water vapor. DETAILED DESCRIPTION

[0025] In order to explain the technical content, achieved objectives and effects of the present invention in detail, the following is an explanation in combination with the implementation modes and the accompanying drawings.

[0026] The most critical concept of the present invention is that by replacing the inner layer of stockings with an inner layer of fabric, the amount of glue used in bonding can be reduced while ensuring the bonding strength, thereby effectively improving the overall air permeability and wearing comfort of the socks; and a double-sided hot-melt adhesive film with air holes is provided between the waterproof breathable membrane and the outer waterproof socks, so that the two can be bonded together by utilizing the characteristic of the hot-melt adhesive film melting when heated without increasing the amount of glue, which can better ensure the overall air permeability and improve the bonding efficiency.

[0027] Please refer to Figure 1 to Figure 2 The waterproof socks provided by the present invention include an inner lining fabric 1, a waterproof breathable membrane 2, a double-sided hot melt adhesive film 3 and an outer waterproof socks 4 which are sequentially bonded from the inside to the outside;

[0028] The double-sided hot melt adhesive film 3 is provided with ventilation holes 31 .

[0029] From the above description, it can be seen that the beneficial effects of the present invention are: providing a waterproof sock set. Since the yarn D number of the existing sock set is relatively coarse (because the existing sock set is a double-layer sock set), the effective contact area during bonding is smaller. In order to improve the bonding effect of the waterproof liner, a large amount of glue needs to be applied during bonding, which leads to a series of problems that affect wearing comfort, such as airtightness, hard material and heavy weight of the finished waterproof liner. Therefore, the present invention replaces the double-layer sock set with a single-layer sock set, that is, by combining the existing inner silk stockings with the inner layer of the double-layer sock set to form an inner fabric, so as to ensure the bonding strength. At the same time, the amount of glue used during bonding is significantly reduced, thereby effectively improving the overall air permeability and wearing comfort of the socks; and compared with the traditional waterproof socks structure, the double-sided hot-melt adhesive film 3 with air holes 31 arranged between the waterproof breathable membrane 2 and the outer waterproof socks 4 can not only save the glue coating step when bonding the outer waterproof socks 4 and the waterproof breathable membrane 2, but also utilize the characteristic that the hot-melt adhesive film will only melt when heated to complete the bonding of the waterproof breathable membrane 2 and the outer waterproof socks 4, that is, the heated waterproof socks can still adjust the position of the corresponding component structure after being put on the last, thereby better ensuring the final product quality.

[0030] Furthermore, the thickness of the lining fabric 1 is 0.45 mm to 0.65 mm.

[0031] Furthermore, the waterproof breathable membrane 2 has a thickness of 0.2 mm to 0.4 mm.

[0032] Furthermore, at least 27 to 35 air holes 31 are provided on each square decimeter of the double-sided hot-melt adhesive film 3 .

[0033] Furthermore, the diameter of the air holes 31 is 1 cm to 1.3 cm.

[0034] Specifically, the thickness of the lining fabric 1 of the present invention is preferably 0.56 mm; the thickness of the waterproof breathable membrane 2 is preferably 0.3 mm; 29 air holes 31 are preferably provided on each square decimeter of the double-sided hot melt adhesive film 3. If the number of air holes 31 is more than this value, the area without hot melt adhesive will increase, and the bonding strength of the composite upper will be insufficient, which is easy to cause cracking; and when the amount of water entering is large, it will also cause the waterproof socks to have the risk of easy water seepage (because all waterproof socks including waterproof shoes are not 100% waterproof, and the waterproof effect needs to be determined by the amount of rainwater); if the number of air holes 31 is less than this value, the amount of hot melt adhesive increases, resulting in poor air permeability of the waterproof socks, and during outdoor sports, sweaty feet may appear in the shoes; the aperture of the air holes 31 on the double-sided hot melt adhesive film 3 is preferably 1.2 cm.

[0035] From the above description, it can be seen that the design has made specific improvements to the relevant parameters of each component structure of the waterproof socks, so as to ensure that the waterproof socks produced under this parameter can meet the design requirements of high bonding strength, strong air permeability and comfortable wearing.

[0036] The present invention also provides a processing method for making the above-mentioned waterproof socks, comprising the following steps:

[0037] S1, applying hot melt adhesive between the lining fabric 1 and the waterproof breathable membrane 2, and hot pressing the lining fabric 1 and the waterproof breathable membrane 2;

[0038] S2, punching the double-sided hot melt adhesive film 3, and hot pressing the punched double-sided hot melt adhesive film 3 and the waterproof breathable film 2;

[0039] S3, cutting the composite lining fabric 1, the waterproof breathable membrane 2 and the double-sided hot melt adhesive film 3 into corresponding areas of the shoe body 43, and sewing the areas together to form a shoe;

[0040] S4. Adhere waterproof strips to the seams of the shoe body 43 in S3 to complete the preparation of the waterproof liner.

[0041] Specifically, any commercially available equipment can be used to punch the double-sided hot melt adhesive film 3 in step S2, such as using an automated stamping equipment such as a punching machine for punching; even any method that can make through holes on the double-sided hot melt adhesive film 3 can be used, such as using a tool to dig holes or using a sharp tool to drill holes, etc.; to improve the punching effect, the optimal range of the thickness of the double-sided hot melt adhesive film 3 is 0.3mm-0.5mm; although the thicker the hot melt adhesive film, the greater the tensile force, but it will cause glue overflow on the outer layer of the socks, and will also make the socks harder; at the same time, if the hot melt adhesive film is thinner, it will cause insufficient adhesion.

[0042] From the above description, it can be seen that when making waterproof socks, it is usually necessary to make a waterproof liner first. This processing method provides a set of complete processing processes for the waterproof liner, thereby ensuring that the initially completed waterproof liner has high bonding strength and is waterproof and breathable.

[0043] Furthermore, the coating amount of the hot melt adhesive in step S1 is 12 g / m 2 ~16g / m 2 .

[0044] Specifically, the coating amount of the hot melt adhesive in step S1 of the present invention is preferably 14 g / m 2 .

[0045] From the above description, it can be seen that the design has made specific improvements to the coating amount of the hot melt adhesive, which can not only avoid the problem of cracking caused by too little coating, which affects the bonding effect of the lining fabric 1 and the waterproof breathable membrane 2; but also avoid the problem of affecting the overall breathability and wearing comfort of the socks due to excessive coating.

[0046] Furthermore, the double-sided hot melt adhesive film 3 in step S2 is provided with a release paper on the side away from the waterproof breathable membrane 2 .

[0047] From the above description, it can be seen that during lamination, in order to prevent the side of the double-sided hot melt adhesive film 3 away from the waterproof breathable membrane 2 from melting due to heat pressing, thereby affecting the subsequent bonding effect, the side of the double-sided hot melt adhesive film 3 away from the waterproof breathable membrane 2 is covered with release paper, which can effectively solve this problem.

[0048] Furthermore, the above processing method for making waterproof socks also includes the following steps:

[0049] S5, knitting the outer waterproof sock 4 in the order of cuff 41 - heel 42 - shoe body 43, shoe tongue 44 - shoe toe 45 - sole seam 46 - waste yarn;

[0050] S6, sequentially performing sewing processing, waste yarn cutting and sole sealing on the sole seam head 46;

[0051] S7, waterproofing the outer waterproof socks 4;

[0052] S8, fitting the waterproof liner in step S4 and the outer waterproof socks 4 in step S4 on a last, and hot pressing to complete the processing of the waterproof socks.

[0053] Furthermore, the waterproofing process in step S7 is: degreasing and stain removal of materials - drying - soaking in waterproofing agent - drying - waterproofing spray - air drying.

[0054] Specifically, the temperature range during drying is 160° C. to 180° C., and the drying time is 4 to 5 minutes.

[0055] From the above description, it can be seen that the design further improves the processing steps of the outer waterproof socks 4 and the hot pressing process of the waterproof socks, thereby ensuring that the final waterproof socks have high bonding strength, strong waterproof and breathable properties, and comfortable wearing.

[0056] The waterproof socks of the present invention can be applied to any footwear that needs to achieve a waterproof function.

[0057] Please refer to Figure 1 to Figure 2 , Embodiment 1 of the present invention is:

[0058] A waterproof sock cover comprises an inner lining fabric 1, a waterproof breathable membrane 2, a double-sided hot melt adhesive film 3 and an outer waterproof sock cover 4 which are sequentially bonded from the inside to the outside; the double-sided hot melt adhesive film 3 is provided with air holes 31; the thickness of the inner lining fabric 1 is 0.56 mm; the thickness of the waterproof breathable membrane 2 is 0.3 mm; 29 air holes 31 are provided per square decimeter of the double-sided hot melt adhesive film 3; the aperture of the air holes 31 is 1.2 cm.

[0059] Embodiment 2 of the present invention is:

[0060] A processing method for making the above-mentioned waterproof socks comprises the following steps:

[0061] S1, applying hot melt adhesive between the lining fabric 1 and the waterproof breathable membrane 2, and hot pressing the lining fabric 1 and the waterproof breathable membrane 2 to obtain A;

[0062] S2, punching the double-sided hot melt adhesive film 3, and hot pressing the punched double-sided hot melt adhesive film 3 and the waterproof breathable film 2 of A to obtain B;

[0063] S3, cutting out corresponding shoe body 43 areas on B, and sewing the areas together to form a shoe;

[0064] S4, bonding waterproof strips at the seams to complete the preparation of the waterproof liner;

[0065] S5, knitting the outer waterproof sock 4 in the order of cuff 41 - heel 42 - shoe body 43, shoe tongue 44 - shoe toe 45 - sole seam 46 - waste yarn;

[0066] S6, sequentially performing sewing processing, waste yarn cutting and sole sealing on the sole seam head 46;

[0067] S7, waterproofing the outer waterproof socks 4;

[0068] S8, fitting the waterproof liner in step S4 and the outer waterproof socks 4 in step S4 on a last, and hot pressing to complete the processing of the waterproof socks.

[0069] The coating amount of the hot melt adhesive in step S1 is 14 g / m2 The double-sided hot melt adhesive film 3 in step S2 is provided with a release paper on the side away from the waterproof breathable membrane 2; the waterproof treatment process in step S7 is: material degreasing, stain removal - drying - soaking in waterproofing agent - drying - waterproof spray - drying.

[0070] The working principle of the present invention is:

[0071] The production stage of the waterproof liner: first, apply hot melt adhesive between the lining fabric 1 and the waterproof breathable membrane 2, and hot press the lining fabric 1 and the waterproof breathable membrane 2; then, punch the double-sided hot melt adhesive film 3, and hot press the punched double-sided hot melt adhesive film 3 and the waterproof breathable membrane 2; then, cut the composite lining fabric 1, waterproof breathable membrane 2 and double-sided hot melt adhesive film 3 into corresponding shoe body 43 areas, and sew the areas to form a shoe; finally, glue the waterproof strip at the seam of the shoe body 43 to complete the preparation of the waterproof liner.

[0072] Processing stages of the waterproof socks upper: first, the outer waterproof socks 4 is knitted and processed in the weaving order of cuff 41 - heel 42 - shoe body 43, shoe tongue 44 - toe cap 45 - sole seam 46 - waste yarn; then, the sole seam 46 is processed, the waste yarn is cut and the sole is sealed in sequence; then, the outer waterproof socks 4 is waterproofed; finally, the waterproof liner and the outer waterproof socks 4 are put on the last, and hot pressed to complete the processing of the waterproof socks.

[0073] In summary, the waterproof socks provided by the present invention can significantly reduce the amount of glue used during bonding while ensuring the bonding strength by replacing the inner silk stockings with the inner fabric, thereby effectively improving the overall air permeability and wearing comfort of the socks; and compared with the traditional waterproof socks structure, the double-sided hot-melt adhesive film with air holes arranged between the waterproof breathable membrane and the outer waterproof socks can not only save the glue coating step when bonding the outer waterproof socks and the waterproof breathable membrane, but also utilize the characteristic that the hot-melt adhesive film will only melt when heated to complete the bonding of the waterproof breathable membrane and the outer waterproof socks, that is, the heated waterproof socks can still adjust the position of the corresponding component structure after being put on the last, thereby better ensuring the final product quality; at the same time, a process for completing the production of the waterproof socks is also provided, thereby ensuring that the waterproof socks after the last is heated have the effects of high bonding strength, good waterproof and breathable properties, and comfortable wearing.

[0074] The above descriptions are merely embodiments of the present invention and are not intended to limit the patent scope of the present invention. Any equivalent transformations made using the contents of the present invention's specification and drawings, or directly or indirectly applied in related technical fields, are also included in the patent protection scope of the present invention.

Claims

1. A waterproof sock, characterized in that: It includes an inner lining fabric, a waterproof breathable membrane, a double-sided hot melt adhesive membrane and an outer waterproof sock which are bonded in sequence from the inside to the outside; The double-sided hot melt adhesive film is provided with ventilation holes.

2. The waterproof socks according to claim 1, characterized in that: The thickness of the lining fabric is 0.45 mm to 0.65 mm.

3. The waterproof socks according to claim 1, characterized in that: The waterproof and breathable membrane has a thickness of 0.2 mm to 0.4 mm.

4. The waterproof socks according to claim 1, characterized in that: Each square decimeter of the double-sided hot-melt adhesive film is provided with 27 to 35 air holes.

5. The waterproof socks according to claim 4, characterized in that: The diameter of the air holes is 1 cm to 1.3 cm.

6. A processing method for making the waterproof socks according to any one of claims 1 to 5, characterized in that: The following steps are involved: S1. Apply hot melt adhesive between the lining fabric and the waterproof breathable membrane, and hot press the lining fabric and the waterproof breathable membrane to obtain A; S2, punching the double-sided hot melt adhesive film, and hot pressing the punched double-sided hot melt adhesive film and the waterproof breathable film A to obtain B; S3, cutting out corresponding shoe body regions on B, and sewing the regions together to form a shoe; S4. Glue the waterproof strip at the seam to complete the preparation of the waterproof liner.

7. The method for processing waterproof socks according to claim 6, characterized in that: The coating amount of the hot melt adhesive in step S1 is 12 g / m 2 ~16g / m 2 .

8. The method for processing waterproof socks according to claim 6, characterized in that: The double-sided hot melt adhesive film in step S2 is provided with a release paper on the side away from the waterproof breathable film.

9. The method for processing waterproof socks according to claim 6, characterized in that: The following steps are also included: S5, knitting and processing the outer waterproof socks in the order of cuff - heel - shoe body, shoe tongue - shoe toe - sole seam - waste yarn; S6, sequentially sewing the seam head of the sole, cutting the waste yarn and sealing the sole; S7, waterproofing the outer waterproof socks; S8, fitting the waterproof liner in step S4 and the outer waterproof socks in step S4 on a last, and hot pressing to complete the processing of the waterproof socks.

10. The method for processing waterproof socks according to claim 9, characterized in that: The waterproofing process in step S7 is: degreasing and stain removal of materials - drying - soaking in waterproofing agent - drying - waterproofing spray - drying.

Images