Manufacturing method for seamless products and manufacturing jig for seamless products

Abstract

To provide a manufacturing method of a seamless product and a manufacturing fixture for the seamless product which enable reduction of failure in an adhesive position for a fabric edge as well as improvement of productivity.SOLUTION: A manufacturing method of a seamless product includes: a fabric placement step in which, after a high frictional body with a friction coefficient set to be larger than that of a placement surface of a fabric is disposed on top of the placement surface, an edge of the fabric is laid on top of the high frictional body, and the fabric is disposed on top of the placement surface; an adhesive layer forming step in which an adhesive layer is formed on the fabric; and a fabric folding step in which the high frictional body is reversed on top of the placement surface, and the fabric edge laid on top of the high frictional body is folded back to be laid on top of the adhesive layer.SELECTED DRAWING: Figure 5

Description

[Technical Field]

[0001] The present disclosure relates to a method for manufacturing a seamless product and a jig for manufacturing a seamless product. [Background technology]

[0002] In recent years, seamless products manufactured by bonding fabrics together using an adhesive have been attracting attention in the field of clothing such as innerwear and sportswear. These seamless products are generally manufactured by applying adhesive to the fabrics using an application device, typically a dispenser, aligning the fabrics, and then pressing them together (see, for example, Patent Document 1). [Prior art documents] [Patent documents]

[0003] [Patent Document 1] International Publication No. WO2020 / 049679 Summary of the Invention [Problem to be solved by the invention]

[0004] However, with this conventional method, the edges of the folded-over portions of the fabric must be manually aligned, which increases the likelihood of producing defective products due to misaligned edges. Furthermore, increasing the accuracy of the alignment increases the time required to align the fabric, making it difficult to increase productivity.

[0005] The present disclosure has been made in consideration of the above circumstances, and aims to provide a method for manufacturing seamless products and a jig for manufacturing seamless products that can reduce defects in the bonding position of the edges of fabric and improve productivity. [Means for solving the problem]

[0006] Specific means for achieving the above object are as follows. <1> a fabric installation process in which a high-friction body having a friction coefficient set to be larger than that of the installation surface is placed on the installation surface of the fabric, and then an end of the fabric is placed on the high-friction body, and the fabric is installed on the installation surface; an adhesive layer forming step of forming an adhesive layer on the fabric; a fabric folding step in which the high-friction body is turned over on the installation surface, and the end of the fabric overlapping the high-friction body is folded over and overlapped on the adhesive layer; A method for manufacturing a seamless product, comprising: <2> the high-friction body has a guide portion that aligns the fabric with the high-friction body, The fabric placement step is a step of placing an end of the fabric on the high friction body along the guide portion, and placing the fabric on the placement surface. <1> A method for manufacturing a seamless product according to claim 1. <3> the high-friction body has a first surface having a friction coefficient set to be larger than that of the installation surface and a second surface having a friction coefficient set to be smaller than that of the first surface, In the fabric placement step, an end of the fabric is placed on the first surface of the high friction body, In the fabric folding step, the high friction body is turned inside out and placed with the second surface facing upward. <1> or <2> A method for manufacturing a seamless product according to claim 1. <4> The fabric is a fabric for a seamless garment having a front body and a back body, the fabric placement step is a step of arranging a plurality of the high friction bodies on a fabric placement surface, and then overlapping the front body on a first high friction body and the back body on a second high friction body; The fabric folding step is a step of turning the first high friction body and the second high friction body inside out and overlapping the front body and the back body, and the adhesive layer is formed on at least one of the front body and the back body. <1> ~ <3> 10. A method for manufacturing a seamless product according to any one of the preceding claims. <5> The installation surface is configured as an installation surface of a first jig, The fabric placement step is a step of placing a high-friction body having a friction coefficient set to be larger than that of the installation surface on the installation surface of the first jig, and then overlapping an end of the fabric on the high-friction body, and placing the fabric on the first jig. <1> ~ <4> 10. A method for manufacturing a seamless product according to any one of the preceding claims. <6> After the fabric placement step, a fabric pressing step is included in which a second jig is placed on top of the first jig and the fabric is sandwiched and pressed between the first jig and the second jig. <5> A method for manufacturing a seamless product according to claim 1. <7> a surface on which the fabric is placed; a high-friction body that is placed on the installation surface and has a friction coefficient set to be larger than that of the installation surface; The high-friction body is turned inside out with the ends of the fabric overlapped, so that the ends of the fabric folded over the high-friction body are overlapped on an adhesive layer formed on the fabric. This is a jig for manufacturing seamless products. [Effects of the Invention]

[0007] According to the present disclosure, a method for manufacturing a seamless product and a jig for manufacturing a seamless product are provided that can reduce defects in the bonding position of the edge of the fabric and improve productivity. [Brief explanation of the drawings]

[0008] [Figure 1] 1 is a schematic diagram showing a manufacturing jig and a manufacturing device for a seamless product according to an embodiment of the present invention. [Figure 2] FIG. 10 is a plan view showing a state in which a high-friction body is placed on the fabric placement surface. [Figure 3] FIG. 10 is a plan view showing a state in which the fabric is placed on a high-friction body and a first jig. [Figure 4] FIG. 10 is a plan view showing a state in which a second jig is placed on top of a first jig. [Figure 5] 1A to 1G are schematic diagrams illustrating the steps of a method for manufacturing a seamless product using a manufacturing jig. [Figure 6]10A and 10B are cross-sectional views showing a modified example of the folding process according to this embodiment, in which (A) shows the state before the fabric is folded, and (B) shows the state after the fabric has been folded. [Figure 7] 10(A) and 10(B) are schematic diagrams illustrating modified examples of the installation surface on which the high-friction body is placed. DETAILED DESCRIPTION OF THE INVENTION

[0009] Hereinafter, embodiments of the present disclosure will be described. However, the present disclosure is not limited to the following embodiments. In the following embodiments, components (including element steps, etc.) are not essential unless otherwise specified. The same applies to numerical values ​​and their ranges, and do not limit the present disclosure. In this disclosure, the term "layer" encompasses a configuration of a shape formed on a part of a surface as well as a configuration of a shape formed on the entire surface when observed in a plan view. Also, in this specification, a "layer" may be referred to as a "film." In this disclosure, the term "process" includes not only a process that is independent of other processes, but also a process that cannot be clearly distinguished from other processes as long as the purpose of the process is achieved. Note that, for convenience of explanation, in this embodiment, the directions indicated by arrows FR, UP, and LH shown appropriately in each figure are defined as the front side, upper side, and left side of the seamless product manufacturing apparatus 10, respectively.

[0010] (Overview) 1 is a schematic diagram showing one embodiment of a manufacturing jig 1 for seamless products and a manufacturing apparatus 10 for seamless products (hereinafter simply referred to as "manufacturing apparatus 10") according to the present disclosure. As shown in this figure, manufacturing jig 1 includes a high-friction body 50, a first jig 20, and a second jig 22. Furthermore, manufacturing apparatus 10 includes a table 12 on which first jig 20 is placed, a nozzle 14 that dispenses adhesive, and a press mechanism 16 provided opposite table 12.

[0011] The adhesive can be a hot melt adhesive whose main component is a thermoplastic polymer, and is preferably a reactive hot melt adhesive. Reactive hot melt adhesives form a three-dimensional crosslinked structure in response to moisture, light, etc., and are therefore suitable for improving heat resistance and adhesive strength. In this embodiment, as an example, the adhesive is a moisture-curing hot melt adhesive containing a urethane prepolymer.

[0012] Nozzle 14 is, for example, a nozzle of an adhesive applicator, such as a known dispenser, and is attached to the tip of an air-operated syringe. The syringe is filled with adhesive that has been melted by heating, and by applying a predetermined air pressure to the syringe, the adhesive is ejected from the tip of nozzle 14 to a desired position. In this embodiment, the adhesive ejected from nozzle 14 forms a dot-like pattern on fabric 30 to form adhesive layer 40 (see FIG. 5(E)). The adhesive application pattern may also be a bead-like pattern. Thus, in this disclosure, "adhesive layer formed on fabric" includes both an adhesive layer formed by continuously applying adhesive to fabric 30 and an adhesive layer formed by discontinuously applying adhesive to fabric 30.

[0013] As an example, the press mechanism 16 includes a columnar rod 16A and a press plate 16B attached to the lower end of the rod 16A. The rod 16A is connected to an actuator such as a motor and is driven up and down by the driving force of the actuator. The press plate 16B clamps and presses the fabric 30 placed on the first jig 20 between the rod 16A and the table 12 by driving the rod 16A. This allows the adhesive surfaces of the fabrics on which the adhesive layer 40 has been formed to be pressed together.

[0014] The manufacturing apparatus 10 configured as described above produces seamless products made by bonding pieces of fabric together using an adhesive. Note that the term "seamless product" is a broad concept that includes products in which some of the fabric joints are joined seamlessly, and products in which all of the fabric joints are joined seamlessly.

[0015] In the manufacturing process according to the present disclosure, the edge of the fabric 30 is preferably bonded by using a high-friction body 50, a first jig 20, and a second jig 22. In the following explanation, the configurations of the high-friction body 50, the first jig 20, and the second jig 22 will be described in detail, and the manufacturing process will be explained using seamless underwear (shorts) as an example.

[0016] (material) 2 is a plan view showing the state in which the fabric 30 is placed on the high-friction body 50 and the first jig 20. As shown in this figure, the fabric 30 is composed of a single piece of flat-cut fabric in which a front body 32 and a back body 34 are connected via a crotch 36. One example of the fabric material used for the fabric 30 is a stretchy fabric material into which synthetic fibers are knitted.

[0017] (High friction body) The high-friction body 50 is formed in a plate shape and is placed on the installation surface of the fabric 30. The high-friction body 50 has a first surface S1 (see FIG. 2) and a second surface S2 (see FIG. 4) which constitute the front and back surfaces when placed on the installation surface. The high-friction body 50 is also placed so that it can be freely turned upside down with respect to the installation surface. As a result, the high-friction body 50 is configured so that the orientation of the front and back can be changed between a state where the first surface S1 is placed on the installation surface and a state where the second surface S2 is placed on the installation surface.

[0018] The high-friction body 50 having such a configuration may be placed so as to be detachable from the installation surface, or may be attached to the installation surface. A configuration in which the high-friction body 50 is placed so as to be detachable from the installation surface is preferable in that maintenance or replacement is easy when dirt adheres to the surface of the high-friction body 50.

[0019] On the other hand, a configuration in which the high-friction body 50 is attached to the installation surface is preferable in that it further stabilizes the folded position of the fabric 30 in the manufacturing process described below. Note that the configuration in which the high-friction body 50 is attached to the installation surface is, for example, a configuration in which one end of the plate-shaped high-friction body 50 is attached to the installation surface via a hinge, and the high-friction body 50 rotates around the hinge.

[0020] In one example of this embodiment, the high-friction body 50 is placed so as to be separable from the installation surface. The high-friction body 50 is configured so that at least the first surface S1 has a friction coefficient greater than that of the installation surface. This first surface S1 is the surface that is placed on the surface of the high-friction body 50 before the fabric folding process described below, and is the surface onto which the end of the unfolded fabric 30 is placed (see FIG. 3).

[0021] Various known methods can be used to improve the surface friction coefficient of the high-friction body 50. For example, the surface friction coefficient can be improved by constructing the high-friction body 50 from a material with excellent surface tackiness, such as silicone, butadiene, isoprene, urethane, or acrylic, or a material containing a combination of these. For example, the surface of a plate-shaped member can be coated with a paint containing at least one of silicone, butadiene, isoprene, urethane, and acrylic to form a high-friction layer with excellent tackiness, thereby improving the friction coefficient. For example, the plate-shaped member can be surface-treated to improve the friction coefficient by varying the shape, density, and height of the unevenness on the treated surface, or a combination thereof. Furthermore, the surface friction coefficient of the high-friction body 50 can be improved by combining the above examples.

[0022] In one example of this embodiment, the high-friction body 50 is made of a flexible sheet-like member containing polydimethylsiloxane as a silicone, and surface dirt can be removed by washing with water or wiping. This is advantageous in that it can prolong the tackiness of the surface and improve durability and ease of maintenance.

[0023] Furthermore, by setting the coefficient of friction of the first surface S1 to be greater than that of the surface on which the fabric 30 is placed, the end of the fabric 30 placed on the first surface S1 is held by the high-friction body 50. This makes it possible to prevent the fabric 30 from shifting in position during the fabric folding process described below.

[0024] The coefficient of friction of the second surface S2 is not particularly limited. In this embodiment, the coefficient of friction of the second surface S2 is made similar to the coefficient of friction of the first surface S1 by ensuring that there is no difference in the processed state of the first surface S1 and the second surface S2.

[0025] Note that if the coefficient of friction of the second surface S2 is set smaller than that of the first surface S1, the frictional resistance of the second surface S2 that comes into contact with the installation surface can be reduced in the step of placing the high-friction body 50 on the installation surface. This is therefore advantageous in that the placement of the high-friction body 50 can be smoothly adjusted. Also, preferably, the coefficient of friction of the second surface S2 is set smaller than the coefficient of friction of the first surface S1 and larger than the coefficient of friction of the installation surface. As a result, after the high-friction body 50 is positioned relative to the installation surface, the frictional resistance of the second surface S2 can suppress displacement of the high-friction body 50 relative to the installation surface.

[0026] On the other hand, if the coefficient of friction of the second surface S2 is set to be larger than that of the first surface S1, the adhesion to the hand of the worker who comes into contact with the second surface S2 improves when removing the high-friction body 50 after the fabric folding process described below. This makes it easier to remove the high-friction body 50, which is advantageous in that it improves the workability of this process.

[0027] Fig. 2 shows a state in which the high-friction body 50 is placed on a mounting surface in the "spread position" where the first surface S1 is disposed on the surface. Fig. 3 shows a plan view of the state in which the fabric 30 is placed on the high-friction body 50 of Fig. 2. As shown in these figures, in this embodiment, the mounting surface for the fabric 30 is made up of the upper surface of the table 12 of the manufacturing apparatus 10 and the upper surface of the first jig 20. The high-friction body 50 also includes a first high-friction body 52 arranged next to the first jig 20, and a second high-friction body 54 arranged on the first jig 20.

[0028] The first high friction body 52 is a rectangular plate-like member, and is placed on the table 12 together with the first jig 20. The front end of the first high friction body 52 is disposed in contact with the rear end 20B of the first jig 20 (first guide portion T1, described below). As shown in FIG. 3, the front body 32 of the fabric 30 is placed on top of the first high friction body 52. ​​In this state, the rear end 52B of the first high friction body 52 protrudes outward from the end of the front body 32. The worker can grip the end 52B protruding from the front body 32 and turn the first high friction body 52 inside out.

[0029] The second high friction body 54 is a plate-like member formed in a rectangular shape that is long in the front-to-rear direction. In this embodiment, a pair of second high friction bodies 54 are placed on the first jig 20 with a gap between them in the left-to-right direction. The left and right end portions of the back body 34 of the fabric 30 are placed on the pair of second high friction bodies 54. In this state, at least one of the longitudinal end portions 54F, 54B of the second high friction body 54 protrudes outward from the end portion of the back body 34. An operator can grasp the end portions 54F, 54B protruding from the back body 34 and turn the second high friction body 54 inside out.

[0030] Here, a fabric alignment guide section T5 is provided on the first surface S1 of each high-friction body 50 (52, 54) to align the fabric 30 with respect to the high-friction body 50. The fabric alignment guide section T5 provides a reference line that indicates the position of the edge of the fabric 30 when the fabric 30 is placed in a specified position on the high-friction body 50. The fabric alignment guide section T5 is also configured to be visible when the fabric 30 is placed on the high-friction body 50. Therefore, in the manufacturing process, the fabric 30 can be aligned with respect to the high-friction body 50 by aligning the edge of the fabric 30 along the fabric alignment guide section T5.

[0031] The fabric matching guide portion T5 having such a configuration can be formed by paint drawn on the first surface S1, a groove portion formed in a concave shape on the first surface S1, a protrusion portion provided in a convex shape on the first surface S1, etc. In one example of the present embodiment, the fabric matching guide portion T5 is formed by paint drawn on the high friction body 50, and indicates part of the outline of the fabric 30 along the edges of the front body portion 32 and the back body portion 34.

[0032] (First jig) The first jig 20 is a rectangular plate-like member that is placed on the table 12. As described above, the first jig 20 forms a surface on which the fabric 30 is placed. In this embodiment, the first jig 20 is configured as a separate and independent component from the table 12; however, if the table 12 is movable horizontally by a driving force such as an actuator, the first jig 20 may be provided integrally with the table 12. The material that constitutes the first jig 20 is not particularly limited. For example, the first jig 20 can be formed from a metal material, a resin material, or a combination thereof. In this embodiment, the first jig 20 is formed from a metal plate, as an example.

[0033] Here, the first jig 20 has a first guide portion T1 that aligns the high-friction body 50 with respect to the first jig 20, and a second guide portion T2 that aligns the second jig 22 with respect to the first jig 20.

[0034] The first guide part T1 provides a reference line that indicates the position of the end of the high-friction body 50 when the high-friction body 50 is placed at a predetermined position that is determined by the relative positional relationship with the first jig 20. The first guide part T1 is also configured to be visible when the high-friction body 50 is placed. Therefore, in the manufacturing process, the high-friction body 50 can be aligned with the first jig 20 by aligning the end of the high-friction body 50 along the first guide part T1.

[0035] The first guide portion T1 configured as described above can be formed by paint on the upper surface, a groove formed in a concave shape on the upper surface, a protrusion formed in a convex shape on the upper surface, or the like. Furthermore, by matching a portion of the shape of the end of the first jig 20 with a portion of the shape of the end of the high-friction body 50, the first guide portion T1 can be formed using the end of the first jig 20 as a reference line. In one example of this embodiment, the first guide portion T1 that aligns the pair of second high-friction bodies 54 is formed by paint 24 painted on the upper surface of the first jig 20. Furthermore, the rear end 20B of the first jig 20 forms the first guide portion T1 that aligns the first high-friction body 52 in the deployed position.

[0036] On the other hand, the second guide portion T2 provides a reference line that indicates the position of the end of the second jig 22 when the second jig 22 is placed at a specified position on the first jig 20. The second guide portion T2 is configured to be visible when the fabric 30 and the second jig 22 are placed on the first jig 20. Therefore, in the manufacturing process, the second jig 22 can be aligned with the first jig 20 by aligning the end of the second jig 22 along the second guide portion T2.

[0037] Like the first guide portion T1 described above, the second guide portion T2 can be configured by paint on the upper surface, a groove formed in a concave shape on the upper surface, a protrusion provided in a convex shape on the upper surface, or the like. Furthermore, by matching a portion of the shape of the end of the first jig 20 with a portion of the shape of the end of the second jig 22, the second guide portion T2 can be configured using the shape of the end of the first jig 20 as a reference line. In one example of this embodiment, the second guide portion T2 is configured by the front end portion 20F of the first jig 20. The second jig 22 can be aligned with the first jig 20 by arranging the position of the front end portion 22F of the second jig 22 along the second guide portion T2.

[0038] (Second jig) The second jig 22 is a plate-like member formed in a rectangular shape. The second jig 22 is placed on top of the first jig 20 with the substrate 30 interposed between them. The material constituting the second jig 22 is not particularly limited. For example, the second jig 22 can be made of a metal material, a resin material, or a combination thereof. As an example, the second jig 22 in the embodiment is made of a metal plate.

[0039] The second jig 22 is placed on top of the first jig 20, thereby sandwiching and pressing the back body 34 of the fabric 30 between the first jig 20. In this state, a part of the outer peripheral edge of the second jig 22 forms a guide edge T3 that guides the folding position of the fabric 30. In this embodiment, the left and right end portions 22R, 22L of the second jig 22 and the rear end portion 22B form the guide edge T3.

[0040] In this embodiment, the second jig 22 further has a fourth guide portion T4 that aligns the position of the first high friction body 52 when the first high friction body 52 is turned inside out and moved from the "unfolded position" to the "folded position" (see FIG. 4). This fourth guide portion T4 provides a reference line that indicates the position of the end of the first high friction body 52 at the "folded position." In addition, the fourth guide portion T4 is configured to be visible when the fabric 30 and the second jig 22 are placed on the first jig 20.

[0041] The fourth guide portion T4 can be configured by paint on the upper surface, a groove formed in a concave shape on the upper surface, a protrusion formed in a convex shape on the upper surface, or the like. Furthermore, by matching a portion of the shape of the end of the second jig 22 with a portion of the shape of the end of the first high-friction body 52, the fourth guide portion T4 can be configured with the end of the second jig 22 as a reference line. In one example of this embodiment, the fourth guide portion T4, which aligns the first high-friction body 52 at the "turn-back position," is configured by paint 28 painted on the upper surface of the second jig 22. The fourth guide portion T4 may also be configured to be provided on the first jig 20.

[0042] 4 shows a state in which the high-friction body 50 is placed on the installation surface in the "folded position" where the second surface S2 is placed on the surface. Furthermore, the second jig 22 is placed on top of the first jig 20, on whose upper surface the fabric 30 is placed. In this figure, the outline of the fabric 30 shown by the two-dot chain line indicates the unfolded state of the fabric 30. Furthermore, the outline of the fabric 30 shown by the solid line indicates the outline of the fabric 30 when the high-friction body 50 is turned inside out from the "unfolded position", thereby folding the fabric 30 along the guide end T3.

[0043] As shown in this figure, when the second jig 22 is placed on top of the first jig 20 in the expanded position of the high friction body 50, the left and right ends of the back body 34 of the fabric 30 are configured to protrude from the left and right end portions 22R, 22L of the second jig 22. These left and right end portions are placed on a pair of second high friction bodies 54. In addition, the front body 32 of the fabric 30 is configured to protrude from the rear end portion 22B of the second jig 22. This front body portion 32 is placed on top of the first high friction body 52.

[0044] When the high friction body 50 is turned inside out from the "unfolded position" and placed in the "folded position," the ends of the fabric 30 protruding from the second jig 22 are folded back along the guide end T3. This results in a configuration in which the end of the front body 32 and the end of the back body 34 overlap on the upper surface of the second jig 22. That is, in this embodiment, a fold line is formed on the fabric 30 at the position of the guide end T3, so that the fabric 30 is folded back along the guide end T3.

[0045] (Method for manufacturing seamless products using manufacturing jigs) Next, with reference to Figures 5(A) to 5(G), a method for manufacturing a seamless product using the above-described high-friction body 50, first jig 20, and second jig 22 will be described. In the manufacturing method of this embodiment, after placing an end of fabric 30 on high-friction body 50, second jig 22 is placed on first jig 20, and fabric 30 is pressed between first jig 20 and second jig 22. In this state, adhesive layer 40 is formed on fabric 30, and then high-friction body 50 is turned inside out, so that the end of the fabric is folded back along guide edge T3 of second jig 22, and the folded-back end of fabric 30 is placed on adhesive layer 40.

[0046] In the dough placement process, first, the high-friction body 50 is placed on the placement surface of the dough 30 (the upper surface of the table 12 and the first jig 20) (FIG. 5(A)). At this time, the end of the high-friction body 50 is placed along the first guide portion T1 of the first jig 20, thereby aligning the high-friction body 50 with the first jig 20. As a result, the high-friction body 50 is placed in the "spreading position". Thereafter, the end of the dough 30 is placed on the first surface S1 of the high-friction body 50 (FIG. 5(B)). At this time, the end of the dough 30 is placed along the dough-aligning guide portion T5 formed on the first surface S1, thereby aligning the dough 30 with the high-friction body 50.

[0047] In the fabric pressing process, the second jig 22 is placed on top of the first jig 20 (FIG. 5(C)). At this time, the second jig 22 is positioned along the second guide portion T2 (20F) of the first jig 20. As a result, the back body piece 34 of the fabric 30 is sandwiched and pressed between the first jig 20 and the second jig 22, which makes it possible to prevent the fabric from shifting position in the subsequent folding process.

[0048] The fabric folding step includes a first folding step performed before the adhesive application step and a second folding step performed after the adhesive application step.

[0049] In the first folding process, the first high-friction body 52 on which the front body part 32 of the fabric 30 overlaps is turned inside out, and the front body part 32 of the fabric 30 protruding from the rear end part 22B (guide end part T3) of the second jig 22 is folded back along the end part 22B (Figure 5(D)).

[0050] After the first folding step, the adhesive layer forming step is performed. In the adhesive layer forming step, the first jig 20 is moved to the front of the table 12 and set to match the position of the nozzle 14, which is set in a fixed position. Thereafter, when the nozzle 14 starts to discharge adhesive, the first jig 20 is slid back and forth so that the tip of the nozzle 14 moves along both the left and right edges of the front body 32 (FIG. 5(E)). As a result, an adhesive layer 40 is formed on both the left and right edges of the front body 32. The movement of the first jig 20 at this time may be performed manually, or may be performed automatically by connecting the first jig 20 to a drive actuator.

[0051] Note that this adhesive layer forming step may be any step in which the adhesive layer 40 is formed on at least one of the fabrics of the front body 32 and the back body 34 at the overlapping portion between them. Therefore, the adhesive layer 40 may be formed not on the front body 32 but on the end portions of the back body 34 that protrude from the end portions 22R, 22L (guide end portions T3) on both the left and right sides of the second jig 22. Alternatively, the adhesive layer 40 may be formed on both the front body 32 and the back body 34.

[0052] After the adhesive application step, in the second folding step, the pair of second high-friction bodies 54 are turned inside out, and the ends of the back body 34 protruding from the left and right ends 22R, 22L (guide ends T3) of the second jig 22 are folded back along the left and right ends 22R, 22L of the second jig 22 (FIG. 5(F)). As a result, on the upper surface of the second jig 22, the end of the back body 34 is overlapped with the end of the front body 32 on which the adhesive layer 40 has been formed.

[0053] After the second folding step, a pressurizing step is carried out to press the adhesive surfaces of the fabrics together (FIG. 5(G)). In this pressurizing step, the high-friction body 50 placed on the fabric 30 is removed, and then the first jig 20 is moved to the lower side of the press mechanism 16, and the press plate 16B is pressed against the upper surface of the second jig 22 to temporarily press the adhesive surfaces of the fabrics together. This completes the three-dimensional shape of the shorts.

[0054] Thereafter, the fabric 30 is removed from the second jig 22, and the adhesive surfaces are thermocompressed using a heat press (not shown), completing the manufacturing process of the seamless garment. Note that the pre-compression step may be omitted by configuring the press mechanism 16 of the seamless product manufacturing apparatus 10 as a heat press mechanism.

[0055] (Action and effect) As described above, in this embodiment, the first surface S1, which has a friction coefficient set greater than that of the placement surface, is placed on the placement surface of the fabric 30, and the high-friction body 50 is then placed on top of the placement surface, and the end of the fabric 30 is then placed on top of the high-friction body 50. This allows the end of the fabric 30 to be held on the first surface S1. Therefore, when the high-friction body 50 is turned inside out and the end of the fabric 30 is folded back, it is possible to prevent the position of the fabric 30 from shifting. This allows for increased accuracy in the folding position of the fabric 30.

[0056] Furthermore, the fabric 30 can be folded over with the simple operation of turning the high-friction body 50 inside out, improving workability. In this way, it is possible to reduce defects in the bonding position of the edge of the fabric 30 and improve productivity.

[0057] A fabric alignment guide portion T5 is provided on the first surface S1 of the high-friction body 50 to align the fabric 30 with respect to the high-friction body 50. This makes it easier to align the fabric 30 with the high-friction body 50 and improves the accuracy of the alignment.

[0058] Furthermore, by setting the friction coefficient of the second surface S2 of the high-friction body 50 to be smaller than that of the first surface, the friction resistance of the second surface S2 that comes into contact with the installation surface during the fabric installation process can be reduced. Therefore, the placement of the high-friction body 50 can be smoothly adjusted.

[0059] On the other hand, by setting the coefficient of friction of the second surface S2 of the high-friction body 50 to be greater than that of the first surface, adhesion to the worker's hand that comes into contact with the second surface S2 is improved when removing the high-friction body 50 after the fabric folding process. This makes it easier to remove the high-friction body 50, improving workability.

[0060] The high friction body 50 includes a first high friction body 52 and a second high friction body 54, with the front body 32 of the fabric 30 layered on the first high friction body 52 and the back body 34 of the fabric 30 layered on the second high friction body 54. By turning the first high friction body 52 and the second high friction body 54 inside out, the overlapping positions of the ends of the front body 32 and the back body 34 of the fabric 30 can be aligned with high precision. This reduces defects in the bonding position of the ends of the fabric 30 and improves productivity in the production of seamless garments having a front body and a back body.

[0061] Furthermore, in this embodiment, the installation surface on which the fabric 30 and high-friction body 50 are placed is configured as the installation surface of the first jig 20. As a result, when forming the adhesive layer 40, even if the adhesive dispensing position is set to a fixed position, the adhesive layer can be formed in a desired position by moving the first jig 20. Therefore, it is possible to easily respond to changes in the product.

[0062] Furthermore, after the fabric 30 is placed on the first jig 20, the second jig 22 is placed on top of the first jig 20, so that the fabric 30 can be sandwiched and pressed between the first jig 20 and the second jig 22. This prevents the fabric 30 from slipping on the first jig 20 and becoming misaligned during the folding process of the fabric 30. This further improves the accuracy of the folding position of the fabric 30.

[0063] (Modification of this embodiment) Although the method for manufacturing a seamless product according to the above embodiment has been described using seamless shorts as an example, the present disclosure is not limited thereto. The manufacturing method according to the present disclosure can be applied to the manufacturing of a wide variety of seamless products. Furthermore, in the above embodiment, when the high-friction body 50 is turned inside out from the "extended position" and moved to the "folded position," the high-friction body 50 is positioned on the second jig 22. However, this is not limiting. For example, as shown in FIG. 6(A), when the high-friction body 50 is positioned in the "extended position" on the first jig 20 and then turned inside out and moved to the "folded position" shown in FIG. 6(B), the end of the folded fabric 30 and the high-friction body 50 may be positioned outside the second jig 22. Furthermore, the second jig 22 is not required. This manufacturing process can be suitably used, for example, to process the edges of fabric, such as the neckline and hem of a T-shirt.

[0064] In the textile product manufacturing method according to the above embodiment, an example has been described in which the placement surface for the fabric 30 is composed of the upper surface of the table 12 and the upper surface of the first jig 20, but the present disclosure is not limited to this. For example, as shown in FIG. 7(A), the first jig 20 may be omitted, and a high-friction body 50 may be placed on the table 12. In this case, the placement surface for the fabric 30 is composed of the upper surface of the table 12. Furthermore, for example, as shown in FIG. 7(B), the high-friction body 50 may be placed on the first jig 20, and the placement surface for the fabric 30 may be composed of the upper surface of the first jig 20. [Explanation of symbols]

[0065] 20 First jig 22 Second jig 30 Fabric (seamless clothing) 32 Front 34 Back 40 Adhesive layer 50 High friction body 52 1st high friction body 54 Second high friction body S1 First side S2 Second Side T5 Fabric alignment guide (guide)

Claims

1. a fabric installation process in which a high-friction body having a friction coefficient set to be larger than that of the installation surface is placed on the installation surface of the fabric, and then an end of the fabric is placed on the high-friction body, and the fabric is installed on the installation surface; an adhesive layer forming step of forming an adhesive layer on the fabric; a fabric folding step in which the high-friction body is turned over on the installation surface, and the end of the fabric overlapping the high-friction body is folded over and overlapped on the adhesive layer; Including, the high-friction body has a guide portion that aligns the fabric with the high-friction body, The fabric placement process is a process in which an end of the fabric is placed on the high-friction body along the guide portion, and the fabric is placed on the placement surface.

2. a fabric installation process in which a high-friction body having a friction coefficient set to be larger than that of the installation surface is placed on the installation surface of the fabric, and then an end of the fabric is placed on the high-friction body, and the fabric is installed on the installation surface; an adhesive layer forming step of forming an adhesive layer on the fabric; a fabric folding step in which the high-friction body is turned over on the installation surface, and the end of the fabric overlapping the high-friction body is folded over and overlapped on the adhesive layer; Including, the high-friction body has a first surface having a friction coefficient set to be larger than that of the installation surface and a second surface having a friction coefficient set to be smaller than that of the first surface, In the fabric placement step, an end of the fabric is placed on the first surface of the high-friction body, In the fabric folding step, the high-friction body is turned inside out and placed with the second surface facing upward.

3. a fabric installation process in which a high-friction body having a friction coefficient set to be larger than that of the installation surface is placed on the installation surface of the fabric, and then an end of the fabric is placed on the high-friction body, and the fabric is installed on the installation surface; an adhesive layer forming step of forming an adhesive layer on the fabric; a fabric folding step in which the high-friction body is turned over on the installation surface, and the end of the fabric overlapping the high-friction body is folded over and overlapped on the adhesive layer; Including, The fabric is a fabric for a seamless garment having a front body and a back body, the fabric placement step is a step of arranging a plurality of the high friction bodies on a fabric placement surface, and then overlapping the front body on a first high friction body and the back body on a second high friction body; The fabric folding process is a process of turning the first high friction body and the second high friction body inside out to overlap the front body and the back body, and the adhesive layer is formed on at least one of the front body and the back body.

4. a fabric installation process in which a high-friction body having a friction coefficient set to be larger than that of the installation surface is placed on the installation surface of the fabric, and then an end of the fabric is placed on the high-friction body, and the fabric is installed on the installation surface; an adhesive layer forming step of forming an adhesive layer on the fabric; a fabric folding step in which the high-friction body is turned over on the installation surface, and the end of the fabric overlapping the high-friction body is folded over and overlapped on the adhesive layer; Including, The installation surface is configured as an installation surface of a first jig, The method for manufacturing a seamless product includes placing a high-friction body, which has a friction coefficient set to be greater than that of the installation surface, on the installation surface of the first jig, and then placing an end of the fabric on the high-friction body, and placing the fabric on the first jig.

5. the high-friction body has a first surface having a friction coefficient set to be larger than that of the installation surface and a second surface having a friction coefficient set to be smaller than that of the first surface, In the fabric placement step, an end of the fabric is placed on the first surface of the high-friction body, The method for manufacturing a seamless product according to claim 1 , wherein in the fabric folding step, the high-friction body is turned inside out so that the second surface faces upward.

6. The fabric is a fabric for a seamless garment having a front body and a back body, the fabric placement step is a step of arranging a plurality of the high friction bodies on a fabric placement surface, and then overlapping the front body on a first high friction body and the back body on a second high friction body; 6. The method for manufacturing a seamless product according to claim 1, wherein the fabric folding step is a step of turning the first high friction body and the second high friction body inside out to overlap the front body and the back body, and the adhesive layer is formed on at least one of the front body and the back body.

7. The fabric is a fabric for a seamless garment having a front body and a back body, the fabric placement step is a step of arranging a plurality of the high friction bodies on a fabric placement surface, and then overlapping the front body on a first high friction body and the back body on a second high friction body; 5. The method for manufacturing a seamless product according to claim 4, wherein the fabric folding step is a step of turning the first high friction body and the second high friction body inside out to overlap the front body and the back body, and the adhesive layer is formed on at least one of the front body and the back body.

8. The installation surface is configured as an installation surface of a first jig, The method for manufacturing a seamless product according to any one of claims 1 to 3, 5, and 6, wherein the fabric placement step is a step of placing a high-friction body, the high-friction body having a friction coefficient set to be greater than that of the placement surface, on an installation surface of the first jig, and then placing an end of the fabric on the high-friction body, and placing the fabric on the first jig.

9. 9. The method for manufacturing a seamless product according to claim 4, further comprising, after the fabric placement step, a fabric pressing step of placing a second jig on top of the first jig and sandwiching and pressing the fabric between the first jig and the second jig.

10. a surface on which the fabric is placed; a high-friction body that is placed on the installation surface and has a friction coefficient set to be larger than that of the installation surface; the high-friction body has a guide portion for aligning the fabric with respect to the high-friction body, The high-friction body is turned inside out along the guide portion with the end of the fabric overlapping on the high-friction body, thereby overlapping the end of the fabric folded over the high-friction body with an adhesive layer formed on the fabric. This is a jig for manufacturing seamless products.

11. a surface on which the fabric is placed; a high-friction body that is placed on the installation surface and has a friction coefficient set to be larger than that of the installation surface; the high-friction body has a first surface having a friction coefficient set to be larger than that of the installation surface and a second surface having a friction coefficient set to be smaller than that of the first surface, The high-friction body is turned inside out with the end of the fabric overlapping the first surface of the high-friction body and placed with the second surface facing upward, so that the end of the fabric folded over the high-friction body is overlapped on an adhesive layer formed on the fabric.

12. a surface on which the fabric is placed; a high-friction body that is placed on the installation surface and has a friction coefficient set to be larger than that of the installation surface; The fabric is a fabric for a seamless garment having a front body and a back body, The jig for manufacturing seamless products is configured such that a plurality of high-friction bodies are placed on the installation surface, and then the front body is placed on a first high-friction body and the back body is placed on a second high-friction body, and the first and second high-friction bodies are turned inside out to overlap the front body and the back body, thereby overlapping the edge of the fabric folded over the high-friction body with an adhesive layer formed on at least one of the front body and the back body.

13. a surface on which the fabric is placed; a high-friction body that is placed on the installation surface and has a friction coefficient set to be larger than that of the installation surface; The installation surface is configured as an installation surface of a first jig, A jig for manufacturing seamless products, in which a high-friction body having a friction coefficient set greater than that of the installation surface of the first jig is placed on the installation surface of the first jig, and then the end of the fabric is turned inside out with the end of the fabric overlapped, so that the end of the fabric folded over the high-friction body is overlapped on an adhesive layer formed on the fabric.

14. A jig for manufacturing seamless products as described in Claim 13, wherein after the fabric is placed on the installation surface of the first jig, a second jig is placed on top of the first jig, and the fabric is sandwiched and pressed between the first jig and the second jig.

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