Method for making waterproof zipper chain

Abstract

The present invention provides a method for manufacturing a waterproof zipper chain, which can improve the manufacturing efficiency and quality of the waterproof zipper chain. The method is suitable for manufacturing multiple waterproof zipper chains simultaneously, and includes: a first step of providing an adhesive layer on a waterproof membrane having a width greater than the total width of the multiple zipper chains arranged side by side; a second step of arranging the multiple zipper chains side by side along the width direction and attaching them to the adhesive layer; a third step of cutting off both ends of the waterproof membrane in the width direction so that the width of the waterproof membrane corresponds to the total width of the multiple zipper chains arranged side by side; a fourth step of cutting between the multiple zipper chains so that the multiple zipper chains are separated from each other; and a fifth step of partially cutting off two opposing edge portions of each of the multiple zipper chains in the width direction, thereby modifying the two edge portions of each of the multiple zipper chains.

Description

Technical Field

[0001] The invention relates to a method for manufacturing a waterproof zipper chain. Background Art

[0002] A common zipper typically includes a zipper chain consisting of a strip of fastener tape and multiple elements arranged on the zipper tape, as well as a slider attached to the zipper chain to slide open or close the elements. A pull tab may also be provided on the slider as needed. Furthermore, the zipper surface of the zipper chain can be waterproofed, such as by spraying waterproof material or attaching a waterproof membrane, to create a waterproof zipper chain. However, existing techniques typically waterproof individual zipper chains, resulting in limited production efficiency and residual waterproof material or membrane at the edges of the zipper chain, leaving manufacturing quality to be improved. Summary of the Invention

[0003] The present invention provides a method for manufacturing a waterproof zipper chain, which can improve the manufacturing efficiency and manufacturing quality of the waterproof zipper chain.

[0004] An embodiment of the present invention provides a method for manufacturing a waterproof zipper chain, which is suitable for manufacturing multiple waterproof zipper chains at the same time, comprising: a first step of arranging an adhesive layer on a waterproof membrane having a width greater than the total width of multiple zipper chains arranged side by side; a second step of arranging the multiple zipper chains side by side along the width direction and affixing them to the adhesive layer; a third step of cutting off both ends of the waterproof membrane in the width direction so that the width of the waterproof membrane corresponds to the total width of the multiple zipper chains arranged side by side; a fourth step of cutting between the multiple zipper chains so that the multiple zipper chains are separated from each other; and a fifth step of partially cutting off two opposite edge portions of each of the multiple zipper chains in the width direction, and modifying the two edge portions of each of the multiple zipper chains.

[0005] In one embodiment of the present invention, the method for manufacturing the waterproof zipper chain further includes: a sixth step of irradiating the two edge portions of each of the plurality of zipper chains with plasma.

[0006] In one embodiment of the present invention, in the sixth step, each of the plurality of zipper chains is transported one by one along a transport direction to be irradiated with the plasma.

[0007] In one embodiment of the present invention, the plasma irradiates the two edge portions of each of the plurality of zipper chains in a direction opposite to the conveying direction.

[0008] In one embodiment of the present invention, the irradiation direction of the plasma is inclined relative to the conveying direction and is spaced apart from the two edge portions of each of the plurality of zipper chains by an angle.

[0009] In one embodiment of the present invention, the irradiation direction of the plasma is at the same level as the two edge portions of each of the plurality of zipper chains.

[0010] In one embodiment of the present invention, the irradiation direction of the plasma is inclined in a vertical direction with respect to the two edge portions of each of the plurality of zipper chains.

[0011] In one embodiment of the present invention, the method for manufacturing the waterproof zipper chain further includes: a seventh step of cutting the middle portion of the zipper tape of each of the plurality of zipper chains.

[0012] In one embodiment of the present invention, the plurality of zipper chains include zipper chains of different colors, and the width of the parts of the two edge portions removed in the fifth step corresponds to a range of color transfer.

[0013] Based on the above, in the method for manufacturing a waterproof zipper chain of the present invention, an adhesive layer is first provided on a wide waterproof membrane, multiple zipper chains are arranged side by side along the width direction and attached to the adhesive layer, and the ends of the waterproof membrane in the width direction are cut off so that the width of the waterproof membrane corresponds to the total width of the multiple zipper chains arranged side by side. Next, the multiple zipper chains are cut apart to separate the multiple zipper chains from each other. Furthermore, the two opposite edge portions of each of the multiple zipper chains in the width direction are partially cut off, and the two edge portions of each of the multiple zipper chains are modified. In this way, not only can multiple waterproof zipper chains be manufactured simultaneously, but the two edge portions of each of the multiple zipper chains can also be modified to prevent the waterproof membrane from remaining on the edge portions. Accordingly, the method for manufacturing a waterproof zipper chain of the present invention can improve the production efficiency and production quality of waterproof zipper chains. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 1 is a flow chart of a method for manufacturing a waterproof zipper chain according to an embodiment of the present invention;

[0015] Figures 2A to 2G for Figure 1 Schematic side view of each step of the method for manufacturing a waterproof zipper chain in the width direction;

[0016] Figure 3 for Figure 2B A schematic top view of the second step of the method for manufacturing a waterproof zipper chain is shown;

[0017] Figure 4 for Figure 2G A schematic top view of the sixth step of the method for manufacturing a waterproof zipper chain is shown;

[0018] Figure 5 for Figure 2G A schematic side view in the length direction of the sixth step of the method for manufacturing a waterproof zipper chain is shown;

[0019] Figure 6 and Figure 7 for Figure 4 FIG. 1 is a schematic diagram of a modified example of the sixth step of the method for manufacturing a waterproof zipper chain.

[0020] Explanation of Figure Numbers

[0021] 50: waterproof zipper chain;

[0022] 60: waterproof membrane;

[0023] 70: adhesive layer;

[0024] 80: plasma irradiator;

[0025] 100: zipper chain;

[0026] 110: zipper tape;

[0027] 112: middle part;

[0028] 120: chain teeth;

[0029] 130: edge portion;

[0030] S11: first step;

[0031] S12: second step;

[0032] S13: the third step;

[0033] S14: the fourth step;

[0034] S15: the fifth step;

[0035] S16: step six;

[0036] S17: Step 7;

[0037] α, β: tilt angle. DETAILED DESCRIPTION

[0038] Reference will now be made in detail to exemplary embodiments of the present invention, examples of which are illustrated in the accompanying drawings. Figure 1 FIG1 is a flow chart of a method for manufacturing a waterproof zipper chain according to an embodiment of the present invention. Figures 2A to 2G for Figure 1The schematic side view of each step of the method for making a waterproof zipper chain in the width direction is shown. Figure 3 for Figure 2B The schematic top view of the second step of the method for making a waterproof zipper chain is shown. Figure 4 for Figure 2G The schematic top view of the sixth step of the method for making a waterproof zipper chain is shown. Figure 5 for Figure 2G The sixth step of the method for manufacturing a waterproof zipper chain is shown as a side view in the length direction. Figure 6 and Figure 7 for Figure 4 The diagram of the modified example of the sixth step of the method for making a waterproof zipper chain is shown in the figure. In the figure, the structural proportions of the waterproof zipper chain 50 are appropriately enlarged or reduced (for example, the thickness of the waterproof zipper chain 50 with a flat cross section is enlarged) to clearly show the relative relationship between the various layers of the waterproof zipper chain 50. However, the actual size ratio of the waterproof zipper chain 50 can be adjusted according to needs. Figures 1 to 7 The specific process of the method for manufacturing the waterproof zipper chain 50 of this embodiment and related modifications are described below, but the present invention is not limited thereto.

[0039] Please refer to Figure 1 In this embodiment, the method for manufacturing the waterproof zipper chain 50 is suitable for manufacturing multiple waterproof zipper chains 50 at the same time, and includes the following steps: a first step S11, providing an adhesive layer on a waterproof membrane having a width greater than the total width of the multiple zipper chains arranged side by side; a second step S12, arranging the multiple zipper chains side by side along the width direction and attaching them to the adhesive layer; a third step S13, cutting off both ends of the waterproof membrane in the width direction so that the width of the waterproof membrane corresponds to the total width of the multiple zipper chains arranged side by side; a fourth step S14, cutting between the multiple zipper chains so that the multiple zipper chains are separated from each other; a fifth step S15, partially cutting off two opposite edge portions of each of the multiple zipper chains in the width direction, and modifying the two edge portions of each of the multiple zipper chains; a sixth step S16, irradiating the two edge portions of each of the multiple zipper chains with plasma; and a seventh step S17, cutting the middle portion of the zipper tape of each of the multiple zipper chains. However, the present invention is not limited to these steps, and the order of some steps may be adjusted or omitted, as described later.

[0040] Specifically, in this embodiment, Figure 1 and Figure 2AAs shown, in the first step S11, an adhesive layer 70 is applied to a waterproof membrane 60 having a width greater than the combined width of multiple zipper chains 100 (e.g., three, but not limited thereto) arranged side by side. Furthermore, depending on the number and size of the zipper chains 100 to be produced in subsequent steps, a wide waterproof membrane 60 is selected, and the adhesive layer 70 is preferably applied to the entire waterproof membrane 60. This allows for simultaneous application of multiple zipper chains 100 in subsequent steps, improving production efficiency. Furthermore, the length of the waterproof membrane 60 is greater than or equal to the length of the multiple zipper chains 100. However, the present invention does not limit the number, size, or type of zipper chains 100, nor does it limit the size and type of the waterproof membrane 60 and adhesive layer 70. The adhesive layer 70 may also be applied to only a portion of the waterproof membrane 60, which can be adjusted as needed.

[0041] Then, in this embodiment, as Figure 1 and Figure 2B As shown, in the second step S12, a plurality of zipper chains 100 (for example, three) are arranged side by side along the width direction and attached to the adhesive layer 70. Figure 2B and Figure 3 As shown, each of the plurality of zipper chains 100 includes a strip-shaped zipper tape 110 and a plurality of chain elements 120 arranged on the zipper tape 110, so that the length direction of the zipper chain 100 is the long side direction of the strip-shaped zipper tape 110 (e.g., Figure 3 The width direction of the zipper chain 100 is the short side direction of the strip zipper tape 110 (such as Figure 2B The left and right directions in Figure 3 left and right directions in the .

[0042] Therefore, in this embodiment, each of the multiple zipper chains 100 is attached to the adhesive layer 70 on the side of the zipper tape 110 opposite the multiple elements 120. The multiple zipper chains 100 are arranged side by side in close proximity (with a spacing of 0), but can also be arranged side by side with appropriate spacing between them. Thus, the multiple zipper chains 100 are simultaneously attached to the waterproof membrane 60 via the adhesive layer 70, achieving a waterproof effect. Furthermore, the multiple zipper chains 100 are not limited to being attached one by one to the adhesive layer 70. Multiple rows of elements 120 can also be arranged on a wide substrate, and the substrate can be used to form the multiple zipper tapes 110 in the subsequent cutting step (i.e., the fourth step S14). Preferably, the middle portion 112 of the zipper tape 110 of the zipper chain 100 (i.e., the portion of the zipper tape 110 corresponding to the chain element 120) has not been cut at this time (and is subsequently cut together with the waterproof membrane 60 and the adhesive layer 70), but the present invention is not limited to this.

[0043] Then, in this embodiment, as Figure 1 and Figure 2CAs shown, in the third step S13, the ends of the waterproof membrane 60 in the width direction are cut off so that the width of the waterproof membrane 60 corresponds to the total width of the multiple zipper chains 100 arranged side by side. More specifically, the width of the waterproof membrane 60 used in the first step S11 is larger than the total width of the multiple zipper chains 100 arranged side by side. Therefore, after the second step S12, the ends of the waterproof membrane 60 with a larger width exceed the edge portion of the zipper chain 100 arranged on the outermost side. Therefore, in the third step S13, the waterproof membrane 60 in the width direction (such as Figure 2C The excess parts at both ends (in the left and right directions) are removed to facilitate the execution of subsequent steps.

[0044] Furthermore, in this embodiment, since the first step S11 to the third step S13 utilizes a wide waterproof membrane 60 as a base for disposing the adhesive layer 70, attaching multiple zipper chains 100, and trimming off the excess portions at both ends of the waterproof membrane 60, the first step S11 to the third step S13 are preferably performed using a single machine (not shown), with a conveying device (e.g., a conveyor belt) used to transport the waterproof membrane 60 between stations corresponding to the first step S11 to the third step S13, sequentially disposing the adhesive layer 70, attaching multiple zipper chains 100, and trimming off the excess portions at both ends of the waterproof membrane 60. However, the present invention is not limited thereto and may be adjusted as needed.

[0045] Then, in this embodiment, as Figure 1 and Figure 2D As shown, in the fourth step S14, the multiple zipper chains 100 are cut apart, separating the multiple zipper chains 100 from each other. During this process, since the multiple zipper chains 100 are attached to the waterproof membrane 60 via the adhesive layer 70, the waterproof membrane 60 and the adhesive layer 70 are also cut apart when the multiple zipper chains 100 are cut apart. As a result, each of the multiple zipper chains 100 after being cut is provided with a corresponding cut waterproof membrane 60 and adhesive layer 70, thereby forming the basic structure of the multiple waterproof zipper chains 50. In other words, each of the multiple waterproof zipper chains 50 is composed of a zipper chain 100 (including a zipper tape 110 and chain elements 120), a waterproof membrane 60, and an adhesive layer 70. In this way, multiple waterproof zipper chains 50 can be produced simultaneously, improving the production efficiency of the waterproof zipper chains 50.

[0046] Furthermore, in this embodiment, since the fourth step S14 involves cutting apart the multiple zipper chains 100 attached to the wide waterproof membrane 60 to separate the multiple zipper chains 100 and form multiple waterproof zipper chains 50, the fourth step S14 can preferably be performed using another machine (not shown). Between the machine corresponding to the first through third steps S11 through S13 and the machine corresponding to the fourth step S14, the waterproof membrane 60, after having been attached to the multiple zipper chains 100 and having its excess portions cut off in the third step S13, is manually transferred to the machine corresponding to the fourth step S14. Alternatively, the same machine can be used for all steps S11 through S14. This is not intended to be limiting and can be adjusted as needed.

[0047] Then, in this embodiment, as Figure 1 and Figure 2E As shown, in the fifth step S15, two opposing edge portions 130 in the width direction of each of the plurality of zipper chains 100 are partially cut away, thereby modifying the two edge portions 130 of each of the plurality of zipper chains 100. Furthermore, if the plurality of zipper chains 100 are arranged side by side in close proximity (with a spacing of 0) in the second step S12, errors may occur during cutting in the fourth step S14, resulting in uneven dimensions or the waterproof membrane 60 and adhesive layer 70 being squeezed out of the two edge portions 130.

[0048] Thus, in the fifth step S15, each of the plurality of zipper chains 100 is aligned in the width direction (eg Figure 2E Partially removing two opposing edge portions 130 (in the left-right direction) is performed, for example, by removing a certain width (e.g., 1.5 mm) from the outermost edges of the two edge portions 130 inward, thereby modifying the two edge portions of each of the multiple zipper chains 100. This allows the dimensions of the multiple waterproof zipper chains 50 to be aligned, and prevents the waterproof membrane 60 and adhesive layer 70 from remaining on the edge portions 130, thereby improving the manufacturing quality of the waterproof zipper chains 50. Similarly, in an embodiment (not shown) where multiple zipper chains 100 are arranged side by side with appropriate spacing, excess portions on the outer sides of each of the multiple zipper chains 100 may also be removed during this step, although the present invention is not limited thereto.

[0049] In addition, in this embodiment, Figures 2B to 2D and Figure 3As shown, the plurality of zipper chains 100 include zipper chains 100 of different colors. The color is, for example, a pigment layer pre-printed on the zipper tapes 110 of the plurality of zipper chains 100, or the zipper tapes 110 of the plurality of zipper chains 100 may be pre-dyed, but the present invention is not limited thereto. Therefore, when the plurality of zipper chains 100 are arranged side by side adjacent to each other (with a spacing of 0) in the second step S12, errors may occur during cutting, resulting in color transfer, that is, the two edge portions 130 of the zipper chain 100 are the color of another zipper chain 100. Therefore, preferably, in the case of Figure 2E The width of the portion removed from the two edge portions 130 in the fifth step S15 (e.g., the portion removed from the outermost edges of the two edge portions 130 inward) corresponds to the range of color shift (e.g., 1.5 mm), which can solve the color shift problem and thereby improve the manufacturing quality of the waterproof zipper chain 50. However, the present invention is not limited to the multiple zipper chains 100 having different colors, and this can be adjusted according to needs.

[0050] Then, in this embodiment, as Figure 1 and Figure 2F As shown, in the sixth step S16, plasma is irradiated onto the two edge portions 130 of each of the plurality of zipper chains 100. Furthermore, while partially removing the two edge portions 130 of each of the plurality of zipper chains 100 in the fifth step S15 can prevent the waterproof membrane 60 and adhesive layer 70 from remaining on the two edge portions 130 and further address the issue of color transfer, burrs may form on the cut surfaces of the two edge portions 130 of the zipper chain 100. Therefore, preferably, in the sixth step S16, plasma is irradiated onto the two edge portions 130 of each of the plurality of zipper chains 100 to heat-shrink the burrs of the partially removed two edge portions 130, thereby further improving the manufacturing quality of the waterproof zipper chain 50.

[0051] Furthermore, in other embodiments not shown, after partially cutting away the two opposing edge portions 130 in the width direction of each of the plurality of zipper chains 100 in the fifth step S15, the plasma irradiation of the two edge portions 130 of each of the plurality of zipper chains 100 in the sixth step S16 is not limited. In one variation, a heating device such as an igniter, an iron heater, or an industrial dryer (hot air heater) may be provided to heat the two edge portions 130 of each of the plurality of zipper chains 100. In this manner, heating the two edge portions 130 of each of the plurality of zipper chains 100 in the sixth step S16 can also heat-shrink the raw edges of the two edge portions 130 after the partial cutting, thereby further improving the manufacturing quality of the waterproof zipper chain 50.

[0052] Furthermore, in this embodiment, since the multiple zipper chains 100 are separated from each other after the fourth step S14, the fifth and sixth steps S15 and S16 are preferably performed using a separate machine (not shown). The multiple zipper chains 100 separated in the fourth step S14 are manually transferred between the machine corresponding to the fourth step S14 and the machine corresponding to the fifth and sixth steps S15 and S16. Alternatively, the first to sixth steps S11 and S16 can all be processed using the same machine. Furthermore, the sixth step S16 can be performed as needed. Specifically, after the two edge portions 130 of each of the multiple zipper chains 100 are modified (the fifth step S15), the two edge portions 130 can be further treated with plasma (the sixth step S16) to modify the burrs. However, the present invention is not limited to this and can be adjusted as needed.

[0053] Specifically, in this embodiment, Figure 2E and Figure 2F As shown, in the fifth step S15 and the sixth step S16, the two edge portions 130 are partially cut off and irradiated with plasma from opposite sides of each of the plurality of zipper chains 100. Therefore, in the machine (not shown) used in the fifth step S15 and the sixth step S16, it is preferred that the machine be arranged along the conveying direction (e.g. Figure 4 The direction indicated by the arrow in Figure 4 The machine is provided with a pair of cutters (not shown) and a pair of plasma irradiators 80 (such as Figure 4 As shown), the two edge portions 130 of each of the plurality of zipper chains 100 conveyed one by one along the conveying direction can be partially cut and irradiated with plasma in sequence, thereby reducing the production cost required for plasma irradiation.

[0054] The cutter and the plasma irradiator 80 may be driven by the same feed motor disposed on the downstream side of the conveying direction, but the present invention is not limited thereto. Figure 2F and Figure 4 The plasma irradiator 80 is only used for illustration, and the plasma irradiator 80 is not limited to the plasma irradiator 80. Figure 2F and Figure 4 The dimensions and structures shown are as follows (for example, the plasma irradiator 80 may actually be larger than the zipper chain 100 and include structures such as an irradiation head and a main body). However, in other embodiments not shown, a machine capable of simultaneously cutting portions of multiple zipper chains 100 and irradiating them with plasma (i.e., multiple pairs of cutters and multiple pairs of plasma irradiators 80 may be provided), and the present invention is not limited thereto.

[0055] Furthermore, in this embodiment, if Figure 4 As shown, in the sixth step S16, it is preferred that the plasma is directed in the opposite direction to the transport direction (eg Figure 4 The direction indicated by the solid arrow in Figure 4 direction to the right of Figure 4 The two edge portions 130 of each of the plurality of zipper chains 100 are irradiated. Preferably, the irradiation direction of the plasma (such as Figure 4 The dotted arrow in the figure is inclined relative to the conveying direction and is separated from the two edge portions 130 of each of the plurality of zipper chains 100 by an inclined angle α (for example, 10 to 45 degrees, but not limited thereto).

[0056] Thus, in this embodiment, while each of the plurality of zipper chains 100 is being conveyed via a conveyor belt (not shown), the plasma irradiator 80 irradiates the plasma in a direction opposite to the conveying direction, thereby increasing the relative velocity of each of the plurality of zipper chains 100 relative to the plasma irradiated by the plasma irradiator 80, thereby preventing the two edge portions 130 of each of the plurality of zipper chains 100 from becoming overheated during the plasma irradiation. However, in other embodiments (not shown), the plasma may also be irradiated in the conveying direction or in a direction perpendicular to the conveying direction, and the present invention is not limited thereto.

[0057] In addition, in this embodiment, Figure 2F and Figure 5 As shown, the plasma irradiation direction is at the same level as the two edge portions 130 of each of the plurality of zipper chains 100. That is, the plasma irradiator 80 is set on the opposite sides of each of the plurality of zipper chains 100 (such as Figure 2F The left and right sides of the zipper chain 100 correspond to the two edge portions 130 of each of the plurality of zipper chains 100, and then at a position at the same horizontal height as the two edge portions 130 (such as Figure 2F and Figure 5 As shown) the two edge portions 130 are irradiated with plasma. Figure 5 The plasma irradiator 80 is only used for illustration, and the plasma irradiator 80 is not limited to the plasma irradiator 80. Figure 5The dimensions and structure shown (for example, the plasma irradiator 80 can actually be larger than the zipper chain 100 and include structures such as an irradiation head and a main body) allow plasma to simultaneously irradiate the upper and lower edges of the two edge portions 130. The solid portions formed by the heat-shrinkage of the two edge portions 130 are less likely to form protrusions upward or downward, effectively covering the two edge portions 130. This improves the tactile feel of the zipper chain 100 after plasma irradiation, thereby further enhancing the manufacturing quality of the waterproof zipper chain.

[0058] Correspondingly, in Figure 6 and Figure 7 In the modified example shown, the plasma irradiation direction is tilted in the vertical direction relative to the two edge portions 130 of each of the multiple zipper chains 100. That is, the plasma irradiator 80 is set on the opposite sides of each of the multiple zipper chains 100 to correspond to the two edge portions 130 of each of the multiple zipper chains 100, and then the plasma is irradiated to the two edge portions 130 at a position tilted in the vertical direction relative to the two edge portions 130. Further, for example, the plasma irradiator 80 is set above the zipper chain 100 and irradiates the plasma tilted downward (such as Figure 6 As shown), or the plasma irradiator 80 is set below the zipper chain 100 and irradiates the plasma obliquely upward (as shown Figure 7 ). Among them, Figure 6 and Figure 7 The plasma irradiator 80 is only used for illustration, and the plasma irradiator 80 is not limited to the plasma irradiator 80. Figure 6 and Figure 7 The dimensions and structures shown (for example, the plasma irradiator 80 may actually be larger than the zipper chain 100 and include structures such as an irradiation head and a body).

[0059] Therefore, in this embodiment, when the inclination angle β between the plasma irradiation direction and the two edge portions 130 is between 0 and 30 degrees, the plasma can still irradiate both the upper and lower edges of the two edge portions 130. The solid portion formed by the heat-shrinking burrs on the two edge portions 130 can effectively cover the two edge portions 130, thereby improving the tactile feel of the zipper chain 100 after plasma irradiation. When the inclination angle β between the plasma irradiation direction and the two edge portions 130 is between 30 and 60 degrees, the plasma can irradiate only one side, the upper or lower edge of the two edge portions 130. The solid portion formed by the heat-shrinking burrs on the two edge portions 130 may protrude to the other side, but the purpose of heat shrinking the burrs can still be achieved. Therefore, the present invention does not limit the direction of plasma irradiation and can be adjusted according to needs.

[0060] Finally, in this embodiment, Figure 1 and Figure 2G As shown, in the seventh step S17, the middle portion 112 of the zipper tape 110 of each of the plurality of zipper chains 100 is cut. More specifically, in the second step S12, the middle portions 112 of the zipper tapes 110 of the plurality of zipper chains 100 (i.e., the portions of the zipper tapes 110 corresponding to the fastener elements 120) are attached to the adhesive layer 70 while the middle portions 112 of the zipper tapes 110 of the plurality of zipper chains 100 have not been cut. Therefore, in the seventh step S17, the middle portion 112 of the zipper tape 110 of each of the plurality of zipper chains 100, together with the waterproof membrane 60 provided on the side opposite to the fastener elements 120 and the adhesive layer 70, are cut. Therefore, in this embodiment, each of the multiple zipper chains 100 can be separated from the middle portion 112 of the zipper tape 110, and a slider (not shown) can be subsequently set in the separated middle portion 112, and the chain teeth 120 can be opened or closed by moving the slider relative to the zipper tape 110, thereby forming a zipper with a waterproof effect (including a waterproof zipper chain 50 and a slider).

[0061] However, in other embodiments not shown, in the second step S12, the plurality of zipper chains 100 may be attached to the adhesive layer 70 with the middle portion 112 of the zipper tape 110 cut, and in the seventh step S17, the waterproof membrane 60 and the adhesive layer 70 provided in each of the plurality of zipper chains 100 may be further cut along the tangent line corresponding to the middle portion 112. Alternatively, the order of the seventh step S17 can be moved to before the fifth step S15 or the sixth step S16. That is, after the multiple zipper chains 100 are separated from each other (the fourth step S14), the two edge portions 130 of each of the multiple zipper chains 100 can be modified first (the fifth step S15) before the middle portion 112 of the zipper tape 110 is cut (the seventh step S17), or the middle portion 112 of the zipper tape 110 of each of the multiple zipper chains 100 can be cut first (the seventh step S17) before the two edge portions 130 are modified (the fifth step S15). The present invention is not limited to this.

[0062] In summary, in the method for manufacturing a waterproof zipper chain according to the present invention, an adhesive layer is first applied to a wide waterproof membrane. Multiple zipper chains are arranged side by side along the width and attached to the adhesive layer. The ends of the waterproof membrane are then cut off in the width direction, so that the width of the waterproof membrane corresponds to the combined width of the multiple zipper chains arranged side by side. Next, the multiple zipper chains are separated from each other by cutting apart. Furthermore, two opposing edges of each of the multiple zipper chains in the width direction are partially cut off, and the edges of each of the multiple zipper chains are modified. This not only allows the simultaneous production of multiple waterproof zipper chains, but also allows the edges of each of the multiple zipper chains to be modified, preventing residual waterproof membrane from remaining on the edges or further addressing color transfer issues. Preferably, the edges of each of the multiple zipper chains are irradiated with plasma to heat-shrink the burrs of the cut edges, thereby further improving the quality of the waterproof zipper chain. Therefore, the method for manufacturing the waterproof zipper chain of the present invention can improve the manufacturing efficiency and quality of the waterproof zipper chain.

[0063] Finally, it should be noted that the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit it. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art should understand that they can still modify the technical solutions described in the above embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of the present invention.

Claims

1. A method for manufacturing a waterproof zipper chain, suitable for manufacturing multiple waterproof zipper chains at the same time, characterized in that: include: In the first step, an adhesive layer is provided on a waterproof membrane having a width greater than the total width of a plurality of zipper chains arranged side by side; The second step is to arrange the plurality of zipper chains side by side along the width direction and adhere them to the adhesive layer; The third step is to cut off both ends of the waterproof membrane in the width direction so that the width of the waterproof membrane corresponds to the total width of the plurality of zipper chains arranged side by side; The fourth step is to cut the plurality of zipper chains to separate the plurality of zipper chains from each other; as well as In a fifth step, two opposite edge portions of each of the plurality of zipper chains in the width direction are partially cut off to modify the two edge portions of each of the plurality of zipper chains.

2. The method for manufacturing a waterproof zipper chain according to claim 1, characterized in that: Also includes: In a sixth step, plasma is irradiated onto the two edge portions of each of the plurality of zipper chains.

3. The method for manufacturing a waterproof zipper chain according to claim 2, characterized in that: In the sixth step, each of the plurality of zipper chains is conveyed one by one along a conveying direction to be irradiated with the plasma.

4. The method for manufacturing a waterproof zipper chain according to claim 3, characterized in that: The plasma irradiates the two edge portions of each of the plurality of zipper chains in a direction opposite to the conveying direction.

5. The method for manufacturing a waterproof zipper chain according to claim 3, characterized in that: The plasma irradiation direction is inclined relative to the conveying direction and is spaced apart from the two edge portions of each of the plurality of zipper chains at an angle.

6. The method for manufacturing a waterproof zipper chain according to claim 3, characterized in that: The irradiation direction of the plasma is at the same level as the two edge portions of each of the plurality of zipper chains.

7. The method for manufacturing a waterproof zipper chain according to claim 3, characterized in that: The plasma irradiation direction is inclined in a vertical direction with respect to the both edge portions of each of the plurality of zipper chains.

8. The method for manufacturing a waterproof zipper chain according to claim 1, wherein: Also includes: In a seventh step, the middle portion of the zipper tape of each of the plurality of zipper chains is cut.

9. The method for manufacturing a waterproof zipper chain according to claim 1, characterized in that: The plurality of zipper chains include zipper chains of different colors, and the width of the parts of the two edge portions removed in the fifth step corresponds to a range of color transfer.

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