JP2008007907A - Cylindrical knitted fabric having opening portion on knitting end side, and its knitting method - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a cylindrical knitted fabric having an opening portion on a knitting end side, which has a good hand and can surely stop the fraying of the opening end portion with low cost elastic yarns for plaiting knitting without increasing yarn-feeding portions, and to provide its knitting method. <P>SOLUTION: This cylindrical knitted fabric knitted with a flat knitting machine and having an opening portion on a knitting end side. The knitted fabric main body 1 of the cylindrical knitted fabric is cylindrically formed by a plaiting knitting method simultaneously feeding and knitting a main yarn 2 and an elastic plaiting yarn 3 to knitting needles. The opening portion formed on the knitting end side of the knitting fabric main body 1 comprises a small loop knitted portion 4 and a final course portion 5. The small loop knitted portion 4 is formed with only the plaiting yarn 3 in a smaller knitting density than that on the plaiting knitting and with smaller stitch loops knitted in at least one course, in connection to a knitted course knitted with the main yarn 2 and the plaiting yarn 3. The final course portion 5 is formed with only the plaiting yarn 3 in a larger knitting density than that on the knitting of the small loop knitted portion 4, in connection of the small loop knitted portion 4. <P>COPYRIGHT: (C)2008,JPO&INPIT

Description

  The present invention relates to a tubular knitted fabric having an opening on the knitting end side such as a glove or a sock, and a knitting method thereof.

  When knitting with a flat knitting machine, gloves or socks that are tubular knitted fabrics are generally knitted in a tubular shape from a fingertip or a toe. In the case of gloves or socks having finger bags, each finger bag is knitted into a tubular shape from the fingertip to the finger crotch, and then the finger bags are joined to form a tubular main body.

  In the sock and gloves, the foot and hand insertion ends are knitted. The end of the knitting is subjected to unwinding treatment. A method generally used as the unblocking process is a method in which the opening at the end of the knitting is held by an overlock sewing machine. After the overlock sewing machine is used to stop the overlocking, usually, the sewing machine performs scooping with the sewing machine to perform the final processing of the opening.

  However, the unlocking process by the overlock sewing machine cannot be completely automated, requires a sewing machine by the operator, and takes time to finish. In addition, since there is a high possibility that the unraveling will occur when moving to the sewing process, the knitting is performed in anticipation of some unraveling.

  Therefore, the method described in Patent Document 1 has been proposed as a method for automating the unlocking process. In Patent Document 1, when knitting the opening end, several courses including the final course are knitted with yarn having heat-fusibility, and after the final course knitting, the knitted fabric is removed from the knitting machine and heat-treated. A technique for melting the heat-fusible yarn to solidify the end portion is disclosed. However, when the unsealing treatment is performed using a heat-fusible yarn, when the heat-fusible yarn is melted and solidified, the edge of the opening becomes hard, and the stretchability is not obtained. When wearing gloves or the like, the opening becomes hard, so there is a problem that the skin is easily damaged.

  Also, a method described in Patent Document 2 has been proposed as a method for automating the unlocking process. In Patent Document 2, the vicinity of the opening end is knitted with a stretchable thread, and the final course of the opening is knitted with, for example, a variable thread in which a loop is formed around a core thread. A technique is disclosed in which the protruding portion is uncoiled by entangled with an elastic yarn.

  In the unlocking process of Patent Document 2, the texture of the opening can be softened. However, after knitting by switching to the stretchable yarn in the vicinity of the opening end, the yarn is further switched to another variable yarn for knitting. Need a lot. Furthermore, the changing yarn has a special configuration, and is expensive. Moreover, it is impossible to arrange the protruding portion regularly and accurately at a predetermined position so that the protruding portion protrudes from the loop of the previous course. It is.

  Therefore, the present applicant uses a special yarn in which a small amount of heat-fusible yarn is mixed with a heat-shrinkable yarn, and after knitting an opening end of a glove or the like with this special yarn, remove the knitted fabric from the knitting machine, A technique has been proposed in which heat-shrinkable yarn is not melted and heat release is performed at a temperature at which only the heat-fusible yarn is melted to perform a release treatment (see Patent Document 3).

  The unwinding treatment method disclosed in Patent Document 3 is such that the heat-shrinkable yarn in the special yarn is contracted by heat-treating the opening end of the knitted fabric at the above temperature, and the knitted fabric knitted with the special yarn is heated. It is made to adhere | attach partially with a fusible thread | yarn so that an opening edge part may not be released.

  By performing the unwinding treatment with the special yarn shown in Patent Document 3, it is possible to maintain the stretchability of the opening end of the knitted fabric, and to stop the unwinding of the yarn without the opening being too hard.

Japanese Patent Laid-Open No. 51-122532 JP 51-122531 A Japanese Patent Publication No. 64-2700

  However, the special yarn used for the unwinding treatment disclosed in Patent Document 3 has a special yarn configuration, and is therefore more expensive than a commercially available covering yarn (filament twist yarn: FTY). Therefore, manufacturing cost becomes high. Also, when knitting the open end using special yarn, it is necessary to provide a yarn feed port for special yarn separately from the yarn feed port for knitting yarn used for knitting the main body portion. Further, the special yarn melts the heat-fusible yarn, which is a part thereof, and adheres it to the knitting yarn, so that the melted and solidified portion still has a hard texture.

  The present invention provides a tube having an opening on the knitting end side that has a good texture and that can reliably release the opening end at a low cost without increasing the yarn feeder using a low-cost elastic yarn. An object is to provide a knitted fabric and a knitting method thereof.

  The tubular knitted fabric of the present invention is a tubular knitted fabric having an opening on the knitting end side knitted using a flat knitting machine having a pair of front and back needle beds. The knitted fabric body of the tubular knitted fabric of the present invention is formed into a tubular shape by plating knitting in which the main yarn and the elastic yarn are simultaneously fed to the knitting needles and knitted. The opening formed on the knitting end side of the knitted fabric main body knitted with the plating is a knitting course knitted with the main yarn and the splicing yarn, and only the splicing yarn is used for the occasion of the plating knitting. A small loop knitted fabric portion formed by a small loop of stitches knitted at least one course at a stitch value smaller than the value, and a small loop knitted fabric using only the spliced yarn following this small loop knitted fabric portion. And a final course portion that is knitted with a degree value greater than the degree value when the part is knitted.

  Plating knitting (supplemental knitting) is a process in which a main yarn as a front yarn and a splicing yarn as a back yarn are simultaneously fed to a knitting needle and knitted. Is a technology that organizes so that is hidden behind it. When knitting socks and gloves, plating knitting may be performed. In this case, the main yarn such as cotton yarn is knitted with elastic yarn such as filament twist yarn (FTY) as an additional yarn. I try to increase the elasticity.

  Plating knitting is performed while using the main yarn feeder and the splicing yarn feeder, and the splicing yarn feeder is slightly retracted from the main yarn feeding port with respect to the traveling direction. The knitting is performed so as to be arranged at the position.

  As the main yarn, a yarn with less stretchability formed of a material such as cotton, wool, silk, or synthetic fiber is used.

  Examples of the splicing yarn include yarns in which ultrafine filaments are spirally wound around an elastic yarn (core yarn) such as polyurethane yarn, for example, FTY single covered yarn (SCY), double covered yarn (DCY), and the like. In addition, as a spun yarn, the polyurethane yarn is coated with a covering roving such as cotton, wool or synthetic fiber while drafting the polyurethane fiber under moderate tension during the spinning process. It may be a yarn (core spun yarn) having a structure in which a polyurethane yarn is a core obtained by twisting a covering yarn. The additive yarn used in the present invention preferably has a configuration in which the core yarn has elasticity and the covered yarn is loosened by contraction of the core yarn. When the covered yarn is loosened around the core yarn, the covering yarn is spread radially outward. When the stitch is knitted, the swollen portion becomes a resistance and becomes a yarn. It becomes easy to get entangled in the loop, and it becomes difficult for the loop to come off.

  Further, the small loop knitted fabric portion is preferably knitted so as to have a tack loop. The tuck loop may appear alternately with the knit loop in the course direction, or the tuck loop may be knitted in the middle while a plurality of knit loops are continuously knitted in the course direction. When forming a tack loop, it is preferable to form a loop having a large final course portion in the tack loop.

  Moreover, the cylindrical knitted fabric having an opening on the knitting end side of the present invention can be knitted by the following knitting process using a flat knitting machine having a pair of front and back needle beds. Following the process of knitting the main body of the knitted fabric into a cylindrical shape by plating knitting, in which the main yarn and the elastic additive yarn are simultaneously supplied to the knitting needle, and the knitting course knitted by the main yarn and the additive yarn is added. A step of knitting a small loop knitted fabric portion formed by a loop with a small stitch by knitting at least one course with a stitch value smaller than the stitch value at the time of plating knitting using only yarn, and this small loop knitting A step of knitting the final course with a stitch value larger than the stitch value when the small loop knitted fabric portion is knitted using only the spliced yarn following the ground portion.

  In the case where a tack loop is formed in the small loop knitted fabric portion, the step of knitting the small loop knitted fabric portion is knitted so as to include the knitting that forms the tack loop.

  The tubular knitted fabric having an opening on the knitting end side of the present invention is knitted with a value smaller than the value when the knitted fabric main body is knitted by plating knitting by adding yarn to form a small loop knitted fabric portion. And since it is the structure which forms the big loop used as the last course part in this small loop, the big loop formed continuously with the loop with a small loop area of a small loop knitted fabric part becomes difficult to come off. As a result, even when an inexpensive yarn such as FTY is used, the texture is good and a good unblocking effect can be obtained.

  In particular, if the final course portion is formed after the small loop knitted fabric portion is formed by the entire knit loop, the small loop is formed in the double yarn loop formed by the main yarn and the splicing yarn. Therefore, since the opening area of this small loop can be reduced compared to the loop in which the small loop is formed following the small loop, the resistance of the large loop is larger than that of the small loop in the 1 course knitting, Can be difficult to understand.

  Further, when forming a small loop knitted fabric part by knitting a plurality of courses, by forming a tack loop, in this tack loop, a plurality of splicing yarns can be overlapped. Can be made as small as possible. When a large loop that forms the final course portion is formed in the tack loop, the large loop is difficult to be removed from the tack loop having a small opening area, so that a good unblocking effect can be obtained.

  According to the knitting method of the tubular knitted fabric having the opening on the knitting end side of the present invention, the opening is prevented from being unwound using the splicing yarn when performing the plating knitting. Therefore, it is not necessary to separately provide a yarn feeder for feeding a yarn used only for the yarn. As a result, it is possible to use the yarn feeder that has been conventionally used for the unlocking process for another purpose, or it is possible to reduce the number of yarn feeders.

  According to the tubular knitted fabric having an opening on the knitting end side and the knitting method of the present invention, an elastic yarn (for example, FTY) that has been conventionally used as an attachment yarn is used. Therefore, the manufacturing cost can be reduced as compared with the case of using a variable yarn or special yarn.

  In particular, the tubular knitted fabric of the present invention is suitable for end processing of insertion ports such as socks and gloves.

  Next, preferred embodiments of the present invention will be described below in detail with reference to the drawings. The embodiment described below has a pair of front and back needle beds that extend in the left-right direction and face each other in the front-rear direction, the rear needle bed can be racked left and right, and the stitches between the front and back needle beds A sock knitted using a so-called two-bed flat knitting machine capable of transfer and a knitting method thereof will be described. This embodiment shows the structure of the opening end portion in the foot insertion port and the knitting method of this opening end portion when knitting is started from the toe side and finished knitting at the foot insertion port.

  In the embodiment shown below, socks are knitted in a cylindrical shape from the toes by plating knitting, and after knitting the heel part and ankle part continuously, knitting is finished at the foot insertion opening (opening part). The structure of the opening end portion of the foot insertion opening and the knitting method of the opening end portion of the foot insertion opening when doing so will be shown.

  The two-bed flat knitting machine used in each embodiment was an SPF 10 gauge flat knitting machine manufactured by Shima Seiki Seisakusho. Furthermore, the knitted fabric main body of the socks knitted in each embodiment is knitted with the stitch value when knitting as the stitch value 70 in the settable range 0 to 90 stages. The stitches knitted by the knitting machine increase as the stitch value increases.

  In the socks knitted in each embodiment, the front knitted fabric that becomes the knitted fabric on the upper side is knitted mainly by the front needle bed F, and the rear knitted fabric that becomes the back side of the foot is knitted mainly by the rear needle bed B.

  In the present embodiment, the toe portion of the sock, the heel portion, the ankle portion, and the portion other than the opening end portion in the foot insertion port are the knitted fabric body, and the knitted fabric body is the main yarn and the spliced yarn in each embodiment. The knitting needles were simultaneously fed to the knitting needles for knitting.

  In each embodiment, the main yarn is a 30-count double yarn, and the accessory yarn is a cover made of an elastic yarn (polyurethane yarn or the like) having a core yarn of 20 to 40 denier and spirally wound around the core yarn. The ring yarn (filament such as polyester fiber / polyamide fiber) used 70% denier yarn.

<First Embodiment>
FIG. 1 is a plan loop diagram of a part of an opening end portion of a foot insertion opening of a sock. FIG. 2 shows a knitting process diagram when knitting the opening end of the foot insertion port of the sock according to the present embodiment.

  In each loop diagram and knitting process diagram of the first embodiment and the second embodiment, stitches formed by the plating knitting in which the main yarn and the spliced yarn are overlapped and knitted are indicated by thick lines, and formed only by the spliced yarn The stitches made are indicated by thin lines.

  In the knitting process diagram of FIG. 2 and the knitting process diagrams of FIGS. 4 and 5 to be described later, the number on the left indicates the step of the knitting process, F on the left indicates the front needle bed, B indicates the rear needle bed, Indicates the yarn feeding direction.

  In the present embodiment, the knitted fabric body 1 of the tubular knitted fabric is knitted into a tubular shape by plating knitting using the main yarn 2 and the additive yarn 3. Then, at the opening end of the foot insertion opening formed on the knitting end side of the knitted fabric body 1, a small loop knitted fabric portion 4 knitted using only the splicing yarn 3 and the small loop knitted fabric portion 4 are followed. A final course portion 5 knitted using only the splicing yarn 3 was formed. The small loop knitted fabric portion 4 was knitted following the knitting course knitted by the main yarn 2 and the splicing yarn 3.

  The small loop knitted fabric portion 4 was formed by knitting one course at a degree value (35) smaller than the degree value (70) at the time of plating knitting. The small loop knitted fabric portion 4 has a stitch value smaller than that when the knitted fabric body 1 is knitted, so that the stitches are clogged more than the stitches of the knitted fabric body 1, and the stitches are formed smaller. .

  Then, the final course portion 5 knitted following the small loop knitted fabric portion 4 uses the same splicing 3 as it is, and the stitches larger than the stitch value (35) when the small loop knitted fabric portion 4 is knitted. It is formed by knitting one course with the value (75). Since the final course portion 5 has a larger stitch value than when the small loop knitted fabric portion 4 is knitted, the stitches become coarser than the stitches of the small loop knitted fabric portion 4, and a large loop is formed. The stitches forming the final course portion 5 are the stitches of the small loop knitted fabric portion 4 as shown in FIG. 1, and a large loop with the sinker side narrowed is formed.

  Next, the knitting method of the small loop knitted fabric portion 4 and the final course portion 5 formed continuously on the knitted fabric body 1 will be described based on the knitting process diagram of FIG.

  In FIG. 2, step S shows a state in which the stitches forming the knitted fabric body 1 are locked to the needles of the front needle bed F and the needles of the rear needle bed B, and the knitted fabric body 1 is formed into a cylinder by these stitches. The state where it is knitted into a shape is shown.

  Step 1 shows the process of knitting the final course of the rear knitted fabric in the knitted fabric body 1 with the rear needle bed B by plating knitting, and Step 2 is the final step of the front knitted fabric in the knitted fabric main body 1 by plating knitting. The process of knitting the course with the front needle bed F is shown. This plating knitting was knitted with a stitch value of 70.

  Switch from plating knitting using main yarn 2 and splicing yarn 3 to knitting using only splicing yarn 3 and only splicing yarn 3 is connected to the knitted fabric body 1 knitted in step 1 and step 2. After using the rear knitted fabric for one course (step 3), the front knitted fabric was knitted for one course (step 4) to form a small loop knitted fabric portion 4. The stitches of the small loop knitted fabric portion 4 were knitted with the stitch value 35 to form stitches smaller than the stitches of the knitted fabric body 1. If the value is too small, such as 5 or less, too much tension will be applied to the spliced yarn 3, and the opening end of the foot insertion port will be stretched when worn, which may cause thread breakage. Absent.

  After knitting one course of the back knitted fabric using only the spliced yarn 3 (step 5) so as to be continuous with the stitches of the small loop knitted fabric portion 4 knitted in step 3 and step 4, the front knitted fabric is one course. Knitting (step 6), the final course part 5 was formed. The final course part 5 was knitted with a degree value of 75 to form a large loop.

  In the present embodiment, since the stitch of the knitted fabric body 1 is thick with two yarns of the main yarn 2 and the splicing yarn 3, the small stitch of the small loop knitted fabric portion 4 is formed on the stitch formed of this thick yarn. Is formed, the opening area of the small stitch is reduced by the thick yarn of the knitted fabric body 1. And since the large loop of the final course portion 5 was continuously formed in the stitch with a small opening area, the large loop is in a state where the sinker loop side is narrowed by the small loop of the small loop knitted fabric portion 4, The large loop in the final course part 5 is difficult to escape from the small loop. As a result, the open end formed by the small loop knitted fabric portion 4 and the final course portion 5 is difficult to unravel.

<Second Embodiment>
FIG. 3 shows a planar loop diagram of a part of the open end of the sock foot insertion opening. 4 and 5 show knitting process diagrams when knitting the open end of the foot insertion port of the sock according to the present embodiment.

  Also in this embodiment, the knitted fabric body 1 is knitted into a tubular shape by plating knitting using the main yarn 2 and the splicing yarn 3. Then, at the opening end of the foot insertion port formed on the knitting end side of the knitted fabric body 1, following the knitting course knitted with the main yarn 2 and the splicing yarn 3, the small knitting using only the splicing yarn 3 A loop knitted fabric portion 4 and a final course portion 5 knitted using only the splicing yarn 3 were formed following the small loop knitted fabric portion 4.

  In the present embodiment, the small loop knitted fabric portion 4 is formed by knitting four courses with a stitch value (35) smaller than the stitch value (70) at the time of plating knitting. Even in this embodiment, the small loop knitted fabric portion 4 has a stitch value smaller than that when the knitted fabric body 1 is knitted. Is formed small.

  Moreover, in the small loop knitted fabric portion 4 of the second embodiment, all the stitches following the knitted fabric body 1 are formed by knit loops, and the 3 courses from the next course are alternately formed by knit loops and tack loops. . In this tack loop, since the loop is formed by four splicing yarns, the opening area becomes very small.

  Then, the final course part 5 knitted following the small loop knitted fabric part 4 uses the same splicing 3 as it is, and the stitches larger than the value (35) when the small loop knitted fabric part 4 is knitted. A course was formed with a value (75). As in the first embodiment, the final course portion 5 has a larger stitch value than when the small loop knitted fabric portion 4 is knitted. Is formed large. The loop forming the final course portion 5 is a loop of the small loop knitted fabric portion 4 as shown in FIG. 1, and a large loop with the sinker side narrowed is formed. In particular, since the large loop of the final course portion 5 formed continuously with the tack loop is further narrowed by the tack loop on the sinker side, the loop of the final course is more difficult to come off from the stitches of the small loop knitted fabric portion 4.

  Next, the knitting method of the small loop knitted fabric portion 4 and the final course portion 5 that are continuously formed on the knitted fabric body 1 according to the second embodiment will be described based on the knitting process diagrams of FIGS. 4 and 5. To do.

  In FIG. 4, step S shows a state in which the loops forming the knitted fabric body 1 are locked to the needles on the front needle bed F and the needles on the rear needle bed B.

  Step 1 and Step 2 show the process of knitting the final course of the knitted fabric body 1 by plating knitting, and Step 3 and Step 4 use only the spliced yarn from the plating knitting using the main yarn 2 and the splicing yarn 3. A process of switching to knitting and knitting the small loop knitted fabric portion 4 for one course is shown. From Step 1 to Step 4, the same knitting as in the first embodiment is performed.

  After knitting one course of the back knitted fabric using only the spliced yarn 3 (step 5) so as to be continuous with the stitches of the small loop knitted fabric portion 4 knitted in step 3 and step 4, the front knitted fabric is one course. The small loop knitted fabric portion 4 is further formed by knitting (step 6). In this knitting, knit loops and tack loops are alternately formed. At this time, the knitting is also knitted with the degree value 35.

  The same knitting as in steps 5 and 6 is performed twice (steps 7 to 10). A tack loop is formed with the same wale at each step.

  After one knitting of the back knitted fabric using only the splicing yarn 3 (step 11) so as to be continuous with the stitches of the small loop knitted fabric portion 4 knitted in step 9 and step 10, the front knitted fabric is one course. Knit (step 12) to form the final course portion 5. The stitches of the final course portion 5 are knitted with a stitch value of 75 to form a large loop.

  In this embodiment, since the tack loop is in a state where four splicing yarns are overlapped, the opening area becomes very small. As a result, the stitch of the final course portion 5 is formed continuously with a tuck loop in which four splicing yarns are overlapped. Therefore, the large loop of the final course portion 5 has a small loop knitted fabric portion 4 on the sinker loop side. It will be in a state of being squeezed with a tuck loop or knit loop. In particular, a large loop formed continuously with the tack loop is more difficult to escape from the small loop. As a result, the open end formed by the small loop knitted fabric portion 4 and the final course portion 5 is very difficult to unravel.

  The tubular knitted fabric and the knitting method of the present invention are suitable for knitting socks or gloves knitted without sewing using a flat knitting machine.

The 1st Embodiment of the cylindrical knitted fabric of this invention, Comprising: The partial loop figure in the leg insertion opening of the sock which is a cylindrical knitted fabric is shown. It is a knitting process diagram of the first embodiment. The 2nd Embodiment of the cylindrical knitted fabric of this invention, Comprising: The partial loop figure in the leg insertion opening of the sock which is a cylindrical knitted fabric is shown. It is a knitting process diagram of the second embodiment. FIG. 5 is a knitting process diagram following FIG. 4.

Explanation of symbols

1 Knitted fabric body 2 Main yarn 3 Addition yarn
4 Small loop knitted fabric part 5 Final course part F Front needle bed B Rear needle bed

Claims (5)

A tubular knitted fabric having an opening on the knitting end side knitted using a flat knitting machine having a pair of front and back needle beds,
The knitted fabric body of the tubular knitted fabric is formed into a tubular shape by plating knitting that feeds the main yarn and elastic additive yarn to the knitting needles at the same time,
The opening formed on the knitting end side of the knitted fabric body knitted with plating is
Following the knitting course knitted with the main yarn and splicing yarn, it is formed by a small loop of stitches knitted at least one course with a stitch value that is smaller than the stitching value using only the splicing yarn. A small loop knitted fabric part,
Following this small loop knitted fabric portion, it is constituted by a final course portion knitted with a stitch value larger than the stitch value when the small loop knitted fabric portion is knitted using only spliced yarn. A tubular knitted fabric having an opening on the knitting end side.   The tubular knitted fabric having an opening on the knitting end side according to claim 1, wherein the small loop knitted fabric portion has a tack loop.   The cylindrical knitted fabric having an opening on the knitting end side according to claim 1 or 2, wherein the splicing yarn is a yarn in which ultrafine filaments are spirally wound around an elastic yarn. Using a flat knitting machine having a pair of front and back needle beds, a method for knitting a tubular knitted fabric having an opening on the knitting end side by the following knitting step,
A step of knitting the knitted fabric body into a tubular shape by plating knitting, in which the main yarn and the additive yarn having elasticity are simultaneously supplied to the knitting needle and knitted,
Following the knitting course knitted with the main yarn and splicing yarn, knitting at least one course with a stitch value that is smaller than the stitching value using only the splicing yarn, and formed by a small loop of stitch Knitting a small loop knitted fabric portion,
A step of knitting the final course with a stitch value larger than the stitch value when the small loop knitted fabric portion is knitted using only the spliced yarn following the small loop knitted fabric portion. A method for knitting a tubular knitted fabric having an opening on a knitting end side.   The method of knitting a tubular knitted fabric having an opening on the knitting end side according to claim 4, wherein the step of knitting the small loop knitted fabric portion includes knitting for forming a tack loop.

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