JP6759518B2 - Confounding bulky focused yarn and its manufacturing method - Google Patents

Description

The present invention relates to an entangled bulky focused yarn obtained by unknitting (deniting) a processed yarn knitted in a tubular knitting shape to impart stretchability, bulkiness, and softness, and a method for producing the same.

As a method for imparting elasticity and bulkiness to silk yarn, for example, a method for imparting bulkiness is disclosed by a means of strongly twisting raw silk and then twisting it after wet drawing treatment, scouring dyeing, and heat treatment (Patent Document 1). Has been done. However, although this method can be expected to have a certain degree of bulkiness by the untwisting treatment, when it is stretched to the vicinity of the breaking elongation after the strong twisting, there are problems such as a decrease in the strong elongation, rubbing of the surface, and generation of fluff.

As another method, there is a method in which silk thread and cellulosic fibers are strongly twisted, and after heat treatment, only the cellulosic fibers are removed by enzymatic treatment to develop bulkiness (Patent Document 2).

However, with this method, a gentle soft feeling can be expected due to the fine voids in the twisted yarn part, but if the silk yarn after removing sericin is strongly twisted, insufficient strength, hardening, yarn breakage, rubbing, and fluffing are expected. , It was difficult to obtain sufficient strength and bulkiness. Further, each of the above prior arts has obtained untwisting by twisting and bulkiness due to fine voids, but has a drawback that the texture becomes hard and the soft feeling is lost when the knitted fabric is used.

Further, in the knitting method by the conventional knit-denit method, a tubular knitted yarn 1 is knitted, a post-processing step is performed, and then one of the terminals is pulled out in a reverse process as shown in FIG. Denit). At that time, the shape-processed crimp stretches out into a corrugated shape as shown in FIG. 21 due to the tension at the time of disassembly, and the elasticity and bulkiness are impaired, and the original softness and texture of the material are not sufficiently exhibited. was there.

JP-A-59-157337 JP-A-7-173732

According to the present invention, a soft and excellent fiber having both stretchability and bulkiness can be obtained by focusing by unknitting by pulling out the entanglement of loops from a processed yarn formed in a tubular knitting shape using a fiber material. It provides an entangled bulky focused yarn and a method for producing the same.

The entangled bulky focusing yarn according to claim 1 of the present invention is a processed yarn formed in a tubular knitting shape by combining a plurality of loops, and the loops having different arrangement positions in the circumferential direction are pulled out and focused. It is characterized by.

In the entangled type bulky focusing yarn according to claim 2 of the present invention, in claim 1, the fiber material forming the processed yarn is any one of spun yarn, filament yarn, false twisting processed yarn, unwinding processed yarn, and push-in processed yarn. It is characterized by being formed in.

The entangled bulky focused yarn according to claim 3 of the present invention is characterized in that, in claim 1 or 2, the fiber material forming the processed yarn is formed of natural silk or cotton fibers or synthetic fibers. It is a thing.

The method for manufacturing a entangled bulky focused yarn according to claim 4 of the present invention is to use a tubular knitting machine, a circular knitting machine, or a bag knitting machine to form a processed yarn in a tubular knitting shape in which loops are combined, and apply friction to the processed yarn. In addition, loops at different arrangement positions are simultaneously pulled out and disassembled while maintaining a plurality of confounding, and the loops are focused.

The method for producing a entangled bulky focused yarn according to claim 5 of the present invention is characterized in that, in claim 4, the diameter of the tubular knitted processed yarn in which loops are combined is 5 to 20 mm. ..

In the method for producing an entangled bulky focused yarn according to claim 6 of the present invention, in claim 4 or 5, a tubular knitted yarn has a plurality of spatula needles arranged on the circumference of a cylindrical body. A hollow spindle provided with a spatula needle drive unit that supports it so that it can be moved up and down is rotatably attached to the base portion, and a plurality of yarns fed by moving a plurality of spatula needles up and down while rotating the hollow spindle are provided. It is characterized in that the loops of the above are combined and knitted into a tubular knitting shape.

According to the entangled type bulky focusing yarn according to claim 1 of the present invention, a fiber having both stretchability and bulkiness by simultaneously pulling out continuous loops from a tubular knitted processed yarn and having excellent texture. An entangled bulky focused yarn can be obtained. This entangled bulky focusing yarn can be widely used as a padding for cotton duvets and as a padding for quilting, which is light, soft and bulky.

Further, according to the entangled type bulky focusing yarn according to claim 2, the fiber material forming the processed yarn can be a spun yarn, a filament yarn, a false twisting processed yarn, an unwinding processed yarn, a push-in processed yarn or the like.

Further, according to the method for producing an entangled bulky focused yarn according to claim 3, a natural fiber of silk or cotton, a synthetic fiber or the like can be used as the fiber material for forming the processed yarn.

According to the entangled bulky focusing yarn according to claim 4, a tubular knitting machine, a circular knitting machine, or a bag knitting machine is used to form a processed yarn in a tubular knitting shape in which loops are combined, and different arrangements are applied while applying friction to the processed yarn. By pulling out and knitting the loops at the positions at the same time while holding a plurality of entanglements and then focusing them, a soft and bulky entangled type bulky yarn having both stretchability and bulkiness can be obtained.

Further, according to the method for producing a entangled bulky focused yarn according to claim 5, the diameter of the tubular knitted processed yarn in which loops are combined is specified to be 5 to 20 mm, thereby achieving both stretchability and bulkiness. A entangled bulky focused yarn that is soft and has an excellent texture can be obtained.

Further, according to the method for manufacturing an entangled type bulky focused yarn according to claim 6, a spatula needle driving unit is provided on the outer circumference of the cylindrical body by arranging a plurality of spatula needles on the circumference and supporting them so as to be movable up and down. The hollow spindle is rotatably attached to the base, and it is easy to knit the yarn fed by moving multiple belly needles up and down while rotating the hollow spindle into a tubular knitting shape by combining multiple loops. is there.

It is a perspective view of the processing machine which attached the hollow spindle provided with the bellows needle drive part to the base part by one Embodiment of this invention. It is a front view which shows the spatula needle of FIG. It is a perspective view of the processing machine which shows the operation of a spatula needle. It is a perspective view of the processing machine which shows the operation of a spatula needle. It is a perspective view of the processing machine which shows the operation of a spatula needle. It is a perspective view of the processing machine which shows the operation of a spatula needle. (A) to (D) are explanatory views showing the operation of the spatula needle. It is a side view of a tubular knitting thread. It is a perspective view which shows the processing machine which attached 4 belly needles by another Embodiment of this invention. It is a top view which shows the processing thread of a tubular knitting shape. It is a photograph which shows the entangled type bulky focusing yarn and the tubular knitting processed yarn of this invention. It is a top view which shows the unraveling apparatus by one Embodiment of this invention. It is explanatory drawing which shows the operation of the unraveling apparatus of FIG. It is a top view of the tubular knitting thread. It is a side view of the entangled type bulky focusing yarn which knitted the tubular knitting processed yarn of FIG. It is a top view of the tubular knitting thread. It is a side view of the entangled type bulky focusing yarn which disassembled the tubular knitting shape of FIG. It is a top view of the tubular knitting thread. It is a side view of the entangled type bulky focusing yarn which knitted the tubular knitting processed yarn of FIG. It is a top view of the tubular knitting thread. It is a side view which shows the state which formed the corrugated state by unknitting the terminal of the tubular knitting thread of FIG.

Hereinafter, an embodiment of the present invention will be described in detail with reference to FIGS. 1 to 15. First, a method for producing a tubular knitted processed yarn of the present invention will be described. FIG. 1 shows a processing machine of the present invention, in which 1 is a processing machine main body, 2 is a base portion rotatably provided in the center of the processing machine main body 1, and 3 is integrated with the base 2 in the center. It is a hollow spindle that rotates in. In this hollow spindle 3, a plurality of guide grooves 4 are formed in the vertical direction on the outer periphery of the cylindrical body 5, and a bell needle driving unit 11 for supporting the bell needles 6a and 6b so as to be vertically movable is provided, for example, facing each other. The spatula needles 6a and 6b are attached to the two guide grooves 4 so as to be vertically movable.

As shown in FIG. 2, the spatula needles 6a and 6b have a hook 8 formed in the upper part of the stem 7, and the spatula 10 supported by the shaft 9 is vertically and vertically attached to the lower portion thereof. is there. The spatula needles 6a and 6b rotate in the guide groove 4 while sequentially ascending and descending by a cam mechanism.

Next, a method of manufacturing the silk thread 13 into the tubular knitted processed thread 17 by the processing machine having the above structure will be described. First, as shown in FIG. 3, the silk thread 13 is hooked on the hook 8 of one of the spatula needles 6a, and then the motor is driven to rotate the hollow spindle 3 integrated with the base portion 2. While rotating the hollow spindle 3, the belly needles 6a and 6b mounted in the guide groove 4 formed on the outer periphery thereof move up and down alternately by the flat needle driving unit 11.

Explaining the state during the processing in more detail, as shown in FIG. 7A, one of the spatula needles 6a is at a high position, and the silk thread 13 unwound from the thread feeding bobbin is hooked at the tip of the stem 7. It is hooked on 8 and goes down.

Further, when the hollow spindle 3 rotates as shown in FIG. 4, the spatula needle 6a also rotates and descends, and at this time, the ready-made loop 15a already knitted in the previous processing step is the spatula 10 Since it is formed on the lower stem 7, the spatula needle 6a descends inside the stem 7. In this process, in contact with the loop 15a, the spatula 10 rotates upward as shown in FIG. 7B to close the hook 8, and the silk thread 13c descends with the loop 15b newly formed.

Further, when the hollow spindle 3 rotates as shown in FIG. 5, the belly needle 6a also rotates and descends to the lowest position, and as shown in FIG. 7C, the ready-made stitch loop 15a is hooked at the tip. It comes out of 8 and is pulled toward the hollow spindle 3 side. At this time, a loop 15b is formed on the hook 8 of the belly needle 6a.

Further, when the hollow spindle 3 rotates as shown in FIG. 6, the spatula needle 6a also rotates and starts to rise this time. At this time, as shown in FIG. 7D, when the bevel needle 6a passes through the newly formed stitch loop 15b, the bevel needle 10 is opened by rotating downward in contact with the newly formed stitch loop 15b. Hereinafter, the process returns to the state shown in FIG. 7A and the same operation is repeated. The other bobbin needle 6b arranged to face the bobbin needle 6a repeatedly moves up and down in the opposite direction to the bobbin needle 6a, and the tubular knitted yarn 17 formed as shown in FIG. It is wound up by the bobbin.

FIG. 9 shows another embodiment of the present invention, in which four spatula needles 6a to 6d are attached to the guide groove 4 to continuously form a tubular knitting yarn 17 in the machine main body. It is 1.

As shown in FIG. 10, eight loops 15 are formed in a circumferential shape through the entanglement points 12 in the processing yarn 17 that is continuously knitted into a tubular knitting shape by a processing machine using eight spatula needles. It becomes a tubular knitting shape. As shown in FIG. 11, when the plan view is knitted by a processing machine using eight spatula needles, eight loops 15 are formed in a circumferential shape through the entanglement points 12 to form a tubular knitting shape. .. Further, the state in which the tubular knitting yarns 17 are bundled is the state shown in the photograph on the right side of FIG.

In this case, the diameter of the tubular knitted yarn 17 is preferably in the range of 5 to 20 mm. If the diameter is less than 5 mm, it is knitted as hard as a braid, and it cannot be sufficiently unknitted in the next step of unraveling. Disappears and there is a problem that confounding cannot be maintained.

Next, the unraveling process will be described. As shown in FIG. 12, a tubular knitted yarn 17 is wound around a yarn feeding bobbin 22, a V-shaped knitting device 23 is provided in front of the bobbin 22, and laser measuring instruments on the light emitting side and the light receiving side are further in front of the knitting yarn 17. 25 is provided. The laser measuring instrument 25 detects the thickness of the unwound entangled bulky focusing yarn 26, and when the thickness exceeds the set thickness, the winding bobbin 27 is stopped. Further, a take-up bobbin 27 is provided in front of the laser measuring instrument 25. 28 is a monitor.

The laser measuring instrument 25 detects the thickness of the unknitted entangled bulky focusing yarn 26, and when the thickness exceeds the set thickness, the winding bobbin 27 is stopped. In the unraveling device 23, the left and right support pieces 28A and 28B are arranged in a V shape and elastically supported so as to spread to the left and right, and lateral U-shaped hooks 30 are alternately projected on the opposite side surfaces thereof.

Next, as shown in FIG. 10, the entanglement of one silk thread 13 at the end of the tubular knitted yarn 17 and one or more loops 15 at different arrangement positions in the circumferential direction is pulled out and shown in FIG. As described above, the V-shaped unraveling device 23 is alternately passed through the opposing horizontal U-shaped hooks 30 and rubbed while applying tension to unwind and the winding bobbin 27. At this time, the thickness of the entangled bulky focusing yarn 26 is set in advance on the monitor 28, and a plurality of entanglements of the loop 15 are solidified and thickened, and when the thickness exceeds the set thickness, the winding bobbin 27 stops. ing.

When the tubular knitting yarns 17 alternately pass through the U-shaped hook 30 of the V-shaped knitting apparatus 23, the machining yarns 17 in which the loops 15 are formed alternate one side at a time as shown in FIG. It is disassembled with the entanglement point 12 of the loop 15 remaining.

Therefore, as shown in FIG. 14, in the case of the processed thread 17 in which eight loops 15 are formed on the same circumference, one silk thread 13 of the terminal and the first loop 15 to be unwound next (the portion circled). ) Are pulled out at the same time to form a total of three entangled bulky focusing yarns (denit yarns) 26, which are in a bulky state as shown in FIG. Further, as shown in FIG. 16, when one silk thread 13 of the terminal and the first and second loops 15 to be unwound next are pulled out at the same time while holding the entanglement point 12, a total of five entangled bulky focusings are obtained. The thread 26 is in a bulky state as shown in FIG.

Further, as shown in FIG. 18, when one silk thread 13 of the terminal and the first, second, and third loops 15 to be unraveled next are pulled out at the same time, a total of seven bulky threads are drawn as shown in FIG. The entangled bulky focusing yarn 26 can be formed. In this way, the thickness (number) of the entangled bulky focusing yarn 26 to be formed is determined by how many continuous loops 15 to be unwound next to one silk thread 13 of the terminal are pulled out at the same time. As for the entangled type bulky focusing yarn 26 thus disassembled, a soft and bulky entangled type bulky focusing yarn 26 can be obtained as shown in the photograph on the left side of FIG. It was confirmed that the tubular knitted yarn 17 before unknitting shown in the photograph on the right side of FIG. 11 was clearly bulky and soft.

Therefore, by the method of the present invention, the tubular knitted yarn 17 is softened to have both stretchability and bulkiness by simultaneously pulling out one silk yarn 13 of the terminal and the number of continuous loops 15 to be unwound next. An entangled bulky focusing yarn 26 having an excellent texture can be obtained. This entangled bulky focusing yarn 26 can be widely used as a padding for cotton duvets and as a light, soft and bulky material for quilting, and since it is one long fiber compared to the one using feathers, it pops out like feathers. , The containment measures are not required.

In addition to silk, natural fibers such as cotton and synthetic fibers can be used as the fiber material used in the present invention. Further, as the fiber material, any of spun yarn, filament yarn, false twisting yarn, unwinding yarn, and indentation yarn may be used.

In the above description, the case where the tubular knitting yarn 17 is knitted using the tubular knitting machines shown in FIGS. 1 to 7 has been shown, but knitting is performed by a tubular knitting machine, a circular knitting machine, or a bag knitting machine having another structure. You may.

Further, as a method of disassembling the tubular knitted yarn 17, a case where the horizontal U-shaped hooks 30 are passed while being alternately rubbed while applying tension has been described. However, a groove is formed in a foam material, silicon rubber, or the like. It may be passed through here and disassembled by the friction at that time.

1 Processing machine body
2 Base
3 Hollow spindle
4 Guide groove
5 Cylindrical body
6a, 6b flat needle
7 stem
8 hook
9 axes
10 bells
11 Bella needle drive unit
12 confounding points
13 Silk thread
15a, 15b loop
17 Cylindrical knitted yarn
20 confounding points
22 Thread feeding bobbin
23 Unraveling device
25 Laser measuring instrument
26 Confounding bulky focusing yarn
27 take-up bobbin
28 monitor
28A, 28B Left and right support pieces 30 Horizontal U-shaped hook

Claims (6)

An entangled bulky focused yarn characterized in that the entangled loops of the processed yarns formed into a tubular knitting shape by combining a plurality of loops are pulled out and focused at different arrangement positions in the circumferential direction. The entangled bulky focusing yarn according to claim 1, wherein the fiber material forming the processed yarn is formed of any of spun yarn, filament yarn, false twisting processed yarn, unwinding processed yarn, and push-in processed yarn. The entangled bulky focused yarn according to claim 1 or 2, wherein the fiber material forming the processed yarn is made of natural silk or cotton fibers or synthetic fibers. With a tubular knitting machine, a circular knitting machine, or a bag knitting machine, a processed yarn is formed into a tubular knitting machine by combining loops, and while applying friction to this, loops at different arrangement positions are pulled out at the same time while maintaining multiple entanglements. A method for producing a confounding type bulky focused yarn, which is characterized in that the yarn is unknitted and then focused. The method for producing an entangled bulky focused yarn according to claim 4, wherein the diameter of the tubular knitted processed yarn in which loops are combined is 5 to 20 mm. A hollow spindle is provided on the outer circumference of a cylindrical body in which a tubular knitting yarn is provided with a bell needle drive unit that supports a plurality of spatula needles arranged on the circumference so as to be vertically movable. 4. Method for manufacturing entangled bulky focused yarn.