JP2019210577A - Method of manufacturing seamless hosiery with panty part - Google Patents

Abstract

To provide a method of manufacturing a pair of new hosiery with a panty part without sewing, where ultra thin, thermally adhesive, highly stretchable tape is used to bond two cylinder-like knitted fabrics, and sufficient elasticity is provided on the bonded part.SOLUTION: Two circularly knitted cylinder-like fabrics 1, 2 are thermally bonded to each other from their upper ends that should be the waist part of the fabrics in the perpendicular direction down to the position where double-side adhesive, heat-sealing, high stretch tape 8 should be the crotch bottom. Thereafter, the cylinder-like fabric parts that contact the tape, and the tape are cut by a cutter 16 so that the tape is in a half width over its entire length, thereby forming a panty part. Furthermore, thermally bonded to the inside of the crotch bottom of the panty part is one-side adhesive, heat-sealing, high stretch tape, whose predetermined length along the vertical center line of the panty part is at least wider than the half width of the double-side adhesive, heat-sealing, high stretch tape.SELECTED DRAWING: Figure 4

Description

  The present invention is a sock having a panty part and a leg part such as pantyhose, tights, leggings, etc., which is a stretch knitted fabric that normally requires sewing, and does not require a conventional sewing process at all. The present invention relates to a method for manufacturing socks having a panty portion.

  When a garment is formed using a stretchable fabric for the purpose of fitting according to the movement of the body, naturally stretchability is also required at the portion where the fabric is joined. In this case, the sewing is generally performed by hand sewing using a needle and a thread, or sewing using a sewing machine.

  In order to prevent the fabrics to be joined from fraying, it is necessary to sew together the seam allowance, so that the sewn portion becomes bulky, and when the yarn is tightened to prevent fraying, the elongation becomes worse.

  And since the said seam allowance is not good-looking, when it comes inside clothing, an unevenness | corrugation will arise in the fabric inner surface and a feeling of wear will worsen.

  When forming the panty with socks having a panty part and leg part such as pantyhose, tights, leggings (including five-minute length and seven-minute length), the figure of JP 2017-218703 A 6. As explained in FIG. 6 as a conventional method, as shown in FIGS. 6 (a) to 6 (c) attached here, first, two circular fabrics 1 and 2 having elasticity are knitted simultaneously with a circular knitting machine. Then, a predetermined crotch bottom (crotch seat) is formed in a vertical direction (the length direction of the cylindrical fabrics 1 and 2) with a cutter from one of the upper sides of the portions 5 and 5 to be upper end waist portions. Cuts 3 and 4 are made to the length (depth) position (see FIGS. 6 (a) to 6 (b)), and the left and right edges 3a and 3b and 4a and 4b of the cuts 3 and 4 are opposed to each other. Overlay the front side of the sides 3a, 4a and 3b, 4b to make the seam allowance In this state, the cut edge portions (for example, 3a and 4a and 3b and 4b) are sewn together with a sewing machine to provide a seam portion 50, and an unnecessary seam allowance portion of the cut edge portion is cut off. The panty portion P is formed with the seam portion 50 (3a, 4a and 3b, 4b) inside (see FIG. 6C).

  Thereby, a straight seam 50 is provided on the inner surface of the panty part P from the longitudinal center on the abdomen side to the longitudinal center on the heel part side through the crotch part.

  However, when the panty part P formed in this way is worn, the seam 50 in the vertical direction of the panty part P is inward from the point of appearance, so that the seam 50 becomes uneven and protrudes to the skin side. As a result, not only the feeling of wear becomes worse, but the elasticity of the seam portion 50 itself decreases, and the seam portion 50 bites into the skin, leaving a trace in the vertical direction on the abdomen and buttocks. In some cases, the material of the seam allowance cut out was also wasted.

Japanese Unexamined Patent Publication No. 2017-218703

None

  In view of the manufacturing problems caused by sewing the conventional panty stockings such as the conventional pantyhose with the sewing machine, the present invention forms the panty part without sewing at all, and has an extremely thin double-sided adhesive property. It is possible to join two tubular knitted fabrics more easily using the heat-fusible and highly stretchable tape of the present invention, and sufficient elasticity can be obtained at the joined portion. The present invention proposes a method for manufacturing socks having a completely different new panty part.

  That is, the present invention relates to a position where two circularly knitted cylindrical fabrics should be provided with a heat-stretchable high-stretch tape having double-sided adhesion in the direction perpendicular to the upper end edge to be the waist of the fabric. After the heat bonding to each other, and then, the sewing machine has a panty part having a panty part that forms a panty part by cutting the tape with a cutter together with the cylindrical fabric parts that are in contact with the tape so that the tape has a half width over the entire length. The present invention relates to a method for manufacturing socks.

  For example, when forming the panty part of pantyhose, two round knitted tubular knitted fabrics are respectively formed from the waist part of the panty part where the entire front surface has a substantially convex shape (the crotch part). The two protruding jigs that are longer than the depth (length) up to and including the two protruding jigs are drawn forward by covering the protruding jig from the rear end so that the portion that should become the waist comes to the front side. .

  Therefore, when one cylindrical knitted fabric is put on one substantially convex protruding jig, the crotch part of the panty part extends from the upper edge portion which should become the waist from the upper part of the central portion of the convex protruding jig. Ultra-thin heat-bonding (hot melt system) with a predetermined width (for example, 8 to 16 mm) having double-sided adhesive paper with release paper on the upper surface in the direction perpendicular to the depth (length) to be (crotch) The stretch tape is bonded to the tubular fabric by heating and pressing from above.

  Next, after peeling off the upper surface release paper of the tape, another cylindrical fabric covered with another convex protruding jig having the same configuration as the above and provided with a heater is turned upside down, To the pressure-sensitive adhesive surface on the other side of the tape from the waist to the crotch portion of the cylindrical fabric in contact with the peak at the center of the convex protruding jig.

  As a result, the two tubular fabrics are joined to each other at predetermined locations by a double-sided adhesive film-like heat-fusible high stretch tape having a length from the waist to the crotch portion.

  Therefore, next, take out the two cylindrical fabrics which are put on the two substantially convex protruding jigs and joined to each other from the protruding jigs. As shown in FIG. 4, for example, both cylindrical fabrics are arranged on the left and right (or up and down) as shown in FIG. 4, and the central portion of the tape width attached by a roller cutter from the inside of one cylindrical fabric is The entire tape is cut along the length direction simultaneously with the other cylindrical fabric in contact with the tape.

  As a result, the two tubular fabrics are cut open from the waist portion to the crotch bottom portion of the joint portion, and the opposite end edges of the two tubular fabrics cut out are approximately half the width of the tape (for example, 4 to 8 mm) are bonded to each other to form the panty portion P.

  The center of the crotch bottom (the crotch seat) of the panty part P formed in this way is not connected to the lower end of the tape on the abdomen and the hip side. A film-like, heat-fusible, high-stretch tape made of the same material as the one-sided adhesive tape that is the same width as half width or larger (for example, 10-15 mm), along the longitudinal center line of the panty on the inner side of the crotch Then, heat bonding is performed for a predetermined length (5 to 10 cm).

  Also, in order to prevent fraying at the waist part of the waist part in the longitudinal center of the abdomen and hip sides of the panty part, the same one-side adhesive property as described above having a length substantially equal to the width of the waist part from at least the upper end edge inside the waist part A wide (for example, 10 to 15 mm) tape is thermally bonded.

  As described above, according to the manufacturing method of the present invention, the panty portion is formed by applying an ultra-thin film heat-fusible high-stretch tape having double-sided adhesive properties in which two cylindrical fabrics are initially joined to each other for a predetermined length along the tape. It is formed by cutting into half width with two cylindrical fabrics that touch each other, so it is a straight, extremely narrow high stretch that extends from the longitudinal center on the abdominal side to the longitudinal center on the buttock side through the crotch. The panty part is formed by joining the tape, and the linear joint part at the front and back longitudinal center of this panty part is thin and thin overall, very supple and comfortable to wear, and the panty part is manufactured without sewing Therefore, unlike the conventional case where the joint part of the panty part is sewn with a sewing machine, the seam does not protrude, and in particular, it is knitted with extra fine thread such as pantyhose. In the case of thin socks, the stitching site protrudes greatly along the vertical center line from the abdomen to the crotch to the buttocks as in the past, and the skin bites into the abdomen and buttocks. And that part doesn't get itchy.

  Further, in the manufacturing method of the present invention, there is no conventional seam, and the joint portion that has been sewn conventionally has a heat-stretchable high stretch tape thermally bonded to the front side surface (or inner side surface). Since there is no uneven part, it touches the skin flatly and gently, it does not bite into the skin, it is comfortable to wear, it does not fray, and it has a predetermined width for sewing. Since there is no need to set a seam allowance, there is no need to cut off a surplus seam allowance after stitching, and the fabric is not used wastefully.

It is an example of the apparatus used when manufacturing the panty part of the pantyhose according to the present invention. In this example, on the upper side of the cylindrical dough at the center top portion of the front substantially convex protruding jig with one of the cylindrical dough covered on the outside. FIG. 5 is an explanatory front view of a state in which a predetermined length ultrathin double-sided adhesive heat-fusible high-stretch tape provided with release paper is placed in the length direction (front-rear direction) of the protruding jig. Before peeling off the release paper of the high stretch tape of FIG. 1, the heater is lowered by driving the cylinder from above the substantially convex protruding jig, and applied to the high stretch tape to heat and press the one of the above cylindrical fabrics. It is an operation principle explanatory view showing the state where heat fusion is carried out. After the release paper of the high stretch tape is peeled off, another protruding jig provided with a heater on the center top portion of the substantially the same shape as the front convex protruding jig and covered with the other cylindrical fabric is attached to the protruding jig. The other projecting jig is lowered by driving the cylinder, and the tape is heated and pressurized by the central heater to melt the tape, and the two portions of the cylindrical fabric are thermally bonded to each other. It is front explanatory drawing which shows a state. With the apparatus of FIG. 3, the panty portion is cut with a cutter together with the two cylindrical fabric portions that are in contact with the tape, and the two portions of the cylindrical fabric that are thermally bonded at predetermined positions with a double-stretch adhesive high stretch tape. It is front explanatory drawing of the other apparatus of the state before comprising. It is an explanatory perspective view of pantyhose manufactured by the method of the present invention. (A)-(c) is explanatory drawing which shows the manufacturing process of the panty part of the conventional pantyhose.

  Hereinafter, as an example of the present invention, a manufacturing method of pantyhose will be described as an example and described with reference to FIGS.

  For example, when manufacturing pantyhose, it is the same as before until two circular fabrics 1 and 2 having elasticity are knitted simultaneously on a circular knitting machine.

  First, as shown in FIG. 1, the circular knitted tubular knitted fabric 1 is taken from the length of the panty part (the length from the preset waist part to the crotch part) whose entire front surface has a substantially convex shape. In addition, it is drawn forward from the rear end portion of the protruding jig 6 so that the portion to be the waist portion 5 comes to the front side on the outside of the protruding jig 6 that is slightly longer in the front-rear direction.

  The protruding shape of the protruding jig 6 may be formed integrally with one long box shape made of, for example, a thin metal plate or a hard plastic and having a substantially convex vertical cross section, or slightly in the center of the upward U-shaped vertical section. A high metal fitting may be projected and fixed upward along the length direction of the projecting jig 6 to form a crest 6a having a flat upper surface, and may have a substantially convex shape as a whole.

  In addition, the size of the entire front surface of the substantially convex projecting jig 6 is set such that when the cylindrical fabric 1 is covered, the fabric 1 hardly expands in any direction.

  Therefore, as described above, when one cylindrical knitted fabric 1 is first put on one convex protruding jig 6, the upper side of the cylindrical fabric 1 portion in contact with the peak portion 6a at the center of the convex protruding jig 6 is placed. An ultrathin with release paper 9 on the upper surface of a predesigned length from the upper end edge portion of the cylindrical fabric 1 to be the waist portion 5 to the bottom portion (crotch seat) 12 of the crotch portion of the panty portion P The upper end of the tubular fabric 1 is a heat-bondable (hot-melt) high-stretch tape 8 having a predetermined width (for example, 6 to 16 mm) having a polyurethane resin film (for example, a thickness of 0.3 mm or less) as a main material. From the edge to the portion that should become the crotch bottom (crotch seat) 12 is placed in a perpendicular direction (see FIG. 1).

  Next, the vertically movable heater 11 is lowered by driving the cylinder 10 installed above, and heated and pressed toward the double-stretch adhesive high stretch tape 8 provided with the release paper 9. It heat-bonds to the predetermined location of one cylindrical fabric 1 (refer FIG. 2).

  Next, the upper surface release paper 9 of the tape 8 is peeled off and the other cylindrical fabric 2 is covered in the same manner as described above, and the entire front surface provided with the heater portion 12 on the peak portion 7a is substantially convex. The jig 7 is turned upside down and the peaks 6a and 7a of the biconvex jigs 6 and 7 are opposed to each other. The heater 12 is pressed against the adhesive surface on the other side of the tape 8 from the waist portion to the crotch portion of the cylindrical fabric 2 in contact with the peak portion 7a at the center of the convex protruding jig 7 of the other cylindrical fabric 2 Adhere by heat and pressure to the place.

  As a result, the two cylindrical fabrics 1 and 2 are bonded to each other with a double-sided adhesive film-like heat-sealable high-stretch tape 8 having a length from the waist part to the crotch part at predetermined positions (FIG. 3). reference).

  Note that the ultrathin film with a thickness of 0.1 mm or less and the above-mentioned double-sided adhesive heat-stretchable high-stretch tape 8 is melt-bonded at a temperature of 130 to 150 ° C., but is a pantyhose fabric covered with nylon yarn and polyurethane yarn. Since 1 and 2 normally do not melt unless the temperature is 225 ° C. or higher, a temperature of 130 ° C. or higher and lower than 225 ° C. is used when the tape 8 is thermally bonded to the cylindrical fabrics 1 and 2 by the heater 11 or 12.

  Then, the two cylindrical fabrics 1 and 2 which are put on the two substantially convex projecting jigs 6 and 7 and joined to each other are taken out from the projecting jigs 6 and 7, respectively, and the next other jigs are taken. Using a tool, the tape 8 is cut in half along its length.

  FIG. 4 shows an example of this other jig. In this figure, the two cylindrical fabrics 1 and 2 are each centered on a portion where one side is joined to the double-sided adhesive tape 8. The example arrange | positioned at the right and left is shown, and each cylindrical cloth | dough 1 and 2 are the hook-shaped support jigs of the substantially same length as the said substantially convex-shaped protrusion jigs 6 and 7, respectively in the inner side. 14, 14, 15, 15 are vertically fixed at an appropriate interval so as to protrude and fix in the front-rear direction, and the respective cylindrical fabrics 1, 2 are vertically supported by the double-sided adhesive tape 8 at the center and on the inner side. The tools 14, 14 and 15, 15 are pinned in a substantially triangular shape symmetrical to each other (see FIG. 4).

  In FIG. 4, the two cylindrical fabrics 1 and 2 are arranged on the left and right with the one side joined to the double-sided adhesive tape 8 as the center. In this case, the cylindrical fabric 2 on which the roller cutter 16 is disposed is the upper side.

  Of the cylindrical fabrics 1 and 2 stretched in a substantially triangular shape symmetrical to each other, the inner side of one cylindrical fabric 2 is brought close to the central adhesive tape 8 side and mechanically in the front-rear direction and the left and right directions. A roller cutter 16 slidable in the direction is disposed (details of the mechanism are omitted in this figure), and a cylindrical shape in which a central adhesive tape 8 is stuck inside the other cylindrical fabric 1 A receiving member 17 that supports the cloth 1 portion is installed and fixed (see FIG. 4).

  Therefore, from the inside of one cylindrical fabric 2, the tape 8 is entirely removed by the roller cutter 16 along the longitudinal direction of the tape width center of the double-adhesive high stretch tape 8 adhered. And cut simultaneously with the other cylindrical fabric 1 portion in contact with (see FIG. 4).

  As a result, the two tubular fabrics 1 and 2 are cut at a stretch from the waist portion 5 to the crotch portion 12 before and after the joint portion by the tape 8, and the two tubular fabrics 1 and 2 are opened relative to each other. The edge portions to be bonded are bonded to each other with a width 8a (for example, 3 to 8 mm) substantially half the width of the tape 8, and from the abdominal side of the front waist portion 5 through the crotch portion 12 to the waist portion 5 on the hip side. This is because the panty portion P whose longitudinal center line is a straight line is formed by the flat double-sided adhesive tape 8a having a half width (see FIG. 5).

  In addition, since the lower end of the tape 8a on the abdomen side and the hip side is not connected to the center of the crotch bottom (crotch seat) of the panty part P formed in this way, On the inner surface of the crotch bottom 12, a one-side adhesive film-like heat-fusible high-stretch tape 18 made of the same material as the above-mentioned tape having the same width as that of the half-width tape 8a of the tape 8 or wider (for example, 10 to 15 mm) is used. A predetermined length (about 5 to 10 cm) is thermally bonded along the longitudinal center line of the panty portion P (see FIG. 5).

  In addition, in order to prevent fraying of the upper edge portion of the half width tape 8a joining portion of the waist 5 portion at the longitudinal center of the ventral side and the hip side of the formed panty portion P, at least from the upper end edge inside the waist portion 5 to the waist portion 5 The one-side adhesive tape 19 similar to the above having a length substantially equal to the width of the tape 8 and the same width as that of the half-width tape 8a of the tape 8 or wider (for example, 10 to 15 mm) is thermally bonded (see FIG. 5). The one-side adhesive tape 19 is folded back from the inside of the waist portion 5 to the outside by using a tape having a length twice the width of the waist portion 5 so as to be thermally bonded to both the inside and outside of the waist portion 5. It may be.

1-Cylindrical knitted fabric 2-Cylindrical knitted fabric 3-Incision 4-Incision 5-Waist 6-Protruding jig having a substantially convex shape on the front 7-Protruding jig having a substantially convex shape with a heater at the peak portion Tool 8-Thermal adhesive high stretch tape with double-sided adhesive 9-Release paper 10-Cylinder 11-Heater 12-Heater 13-Cylinder 14-Cage-like support jig 15-Cage-like support jig 16-Roller cutter 17- Receptacle 18-One side adhesive high stretch tape 19 of crotch part-One side adhesive high stretch tape 50 of waist part-Seam portion P-Panty part L-Leg part by conventional sewing machine

Claims (4)

  Two circular fabrics that are circularly knitted are heat-bonded to each other up to the position where they should be the crotch, with a double-sided heat-sealable high-stretch tape in the direction perpendicular to the upper edge that should be the waist of the fabric, After that, a non-sewn sock having a panty portion, characterized in that a panty portion is formed by cutting the tape with a cutter together with the both cylindrical fabric portions in contact with the tape so that the tape is half-width over the entire length. Manufacturing method.   The inner side of the crotch part of the panty part has a predetermined length along the longitudinal center line of the panty part P, and has a width equal to or greater than a half width of the double-adhesive heat-fusible high-stretch tape. The method for producing non-sewn socks having a panty portion according to claim 1, wherein the heat-fusible high stretch tape is thermally bonded.   The longitudinal center of at least the inner side of the waist part of the panty part is at a length substantially equal to the width of the waist part and is half or wider than the double-adhesive heat-sealable high-stretch tape. The manufacturing method of the sewing-less socks which have the panty part of Claim 1 or 2 formed by heat-bonding the one-side-adhesive heat-fusible high-stretch tape.   The method for manufacturing a non-sewn sock having a panty part according to any one of claims 1 to 3, wherein the non-sewn socks are pantyhose, tights, or leggings.

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