JP2021152226A - Multifilament three-dimensional knitted fabric and manufacturing method thereof - Google Patents

Abstract

To provide a multifilament three-dimensional knitted fabric, a manufacturing system thereof, and a manufacturing method thereof.SOLUTION: A multifilament three-dimensional knitted fabric comprises a superficial texture part, a base texture part, and a support texture part. The support texture part is arranged between the superficial texture part and the base texture part. The support texture part contains a first multifilament yarn for connecting the superficial texture part and the base texture part. The first multifilament yarn has a yarn structure which is composed of a plurality of fibers and has a predetermined denier number. The three-dimensional knitted fabric has an adequate bearing force, can secure an elastic force, is friendly to the skin, and imparts soft and comfortable feel, thereby, solving a problem of skin irritation caused by the yarn being protruded from the fabric surface. Further, a manufacturing system and a method of the multifilament three-dimensional knitted fabric overcome a thickness loss in a manufacturing process, improves a failure rate and process efficiency, and reduces production costs.SELECTED DRAWING: Figure 1

Description

The present invention relates to a three-dimensional knitted fabric, a manufacturing system and a manufacturing method thereof, and in particular, a multifilament three-dimensional knitted fabric used for clothing, inner garments, shoe materials, bag materials, hat materials, mattresses, medical products, and the like. Regarding manufacturing system and manufacturing method.

As the textile manufacturing industry continues to develop actively, consumers are increasingly demanding textiles, and in addition to their appearance, they are also demanding a delicate touch. Woven fabrics can be divided into woven fabrics made by weaving, knitting, plating, or braiding. Three-dimensional knitted fabrics have the advantage of being soft and breathable, and are widely used in a variety of wearable products such as clothing, garments, mattresses and medical supplies. In related arts, monofilament fibers are commonly used as support yarns. However, commercially available monofilament fibers have low bearing capacity and rigidity, and three-dimensional knits made of conventional monofilament fibers can be easily deformed after a molding, sewing, or cleaning process, so that the monofilament fibers are surfaced. It will stick out of the layer, irritate the skin and cause discomfort.

Also, some disadvantages such as loss of thickness of about 1.5 mm and creases or crushing of the product still exist in the existing three-dimensional knitted fabric manufacturing process.

Therefore, how to resolve the technical contradiction between bearing capacity and softness, and how to give the three-dimensional woven fabric a skin-friendly feel and comfort by the design of the woven fabric itself is an important topic in this field. It has become.

An object to be solved by the present invention is to provide a multifilament three-dimensional knitted fabric, a manufacturing system thereof, and a manufacturing method for the lack of existing technology.

In order to solve the above technical problems, one of the technical means adopted in the present invention is to provide the following multifilament three-dimensional knitted fabric. The multifilament three-dimensional knitted fabric includes a surface structure part, a base structure part and a support structure part. The support tissue portion is arranged between the surface layer tissue portion and the base tissue portion, and the support tissue portion includes a first multifilament yarn, and the first multifilament yarn is the surface layer. The tissue portion and the base tissue portion are connected to weave the support tissue portion.

The thickness of the supporting tissue portion is preferably 0.85 mm to 5 mm.

The shrinkage rate of the multifilament three-dimensional knitted fabric is preferably −5 to 0%.

The number of denier of the first multifilament yarn is 5 to 60 denier, and the first multifilament yarn is composed of 2 to 75 yarns twisted together and is used for each yarn. The denier number of is 0.5 to 30 denier.

The yarn is preferably at least one selected from the group consisting of nylon, polyester fibers, polylactic acid fibers, polytrimethylene terephthalate fibers, and cellulose fibers.

The surface tissue portion and the base tissue portion include non-stretchable fibers and stretchable fibers. Among them, the ratio of the non-stretchable fiber to the stretchable fiber is preferably 70:30 to 97: 3.

In order to solve the above technical problems, another technical means adopted in the present invention is to provide a manufacturing system for manufacturing the multifilament three-dimensional knitted fabric according to the present invention. The manufacturing system includes a loom. The loom includes a yarn feeding means, and the yarn feeding means is provided with a yarn feeding nozzle for interlacing at least one multifilament yarn and weaving the multifilament three-dimensional knitted fabric. Among them, the multifilament yarn passes through the yarn inlet of the yarn feeding nozzle at a yarn feeding angle of 40 to 55 degrees.

In order to solve the above technical problems, as yet another technical means adopted in the present invention is to provide a method for producing a multifilament three-dimensional knitted fabric. In the method for producing a multifilament three-dimensional knitted fabric, at least one multifilament yarn is supplied to a loom to weave the multifilament three-dimensional knitted fabric. The multifilament three-dimensional knitted fabric includes a surface layer structure part, a base structure part and a support structure part. The support tissue portion is arranged between the surface tissue portion and the base tissue portion. Among them, the support tissue portion includes a first multifilament yarn, and the first multifilament yarn is woven so as to connect the surface layer tissue portion and the base tissue portion to weave the support tissue portion. To be done. Among them, the loom includes a yarn feeding means, the yarn feeding means includes a yarn feeding nozzle, and the multifilament yarn has a yarn inlet of the yarn feeding nozzle at a yarn feeding angle of 40 to 55 degrees. pass.

As one of the beneficial effects of the present invention, the multifilament three-dimensional knitted fabric provided by the present invention, a manufacturing system and a manufacturing method thereof, include "the support structure portion includes a first multifilament yarn" and "the above. The multifilament three-dimensional knitted fabric according to the present invention has an appropriate bearing capacity by a technical means such as "the first multifilament yarn interweaves the surface layer structure portion and the base structure portion to weave the support structure portion". That is, it has the same bearing capacity as monofilament fibers, but also has a better feel and comfort, and it is possible to avoid the fibers sticking out from the surface layer and causing tingling discomfort to the skin. can.

In addition, the present invention further improves the manufacturing system and manufacturing method of the multifilament three-dimensional knitted fabric, overcomes the problems related to thickness loss and wrinkle or crushing defects in the conventional manufacturing process, and further improves the manufacturing efficiency. , Reduce the cost of manufacturing process.

It is sectional drawing which shows the multifilament three-dimensional knitting fabric of the embodiment which concerns on this invention. It is a schematic diagram which shows the 1st multifilament yarn 31 of the embodiment which concerns on this invention in an enlarged manner. It is a schematic diagram which shows the 1st multifilament yarn 31 of the embodiment which concerns on this invention in an enlarged manner. It is a schematic diagram which shows the structure of the yarn feeding nozzle of the embodiment which concerns on this invention.

In order to further understand the features and technical contents of the present invention, the detailed description and the accompanying drawings relating to the present invention will be referred to below. However, the accompanying drawings provided are provided for reference only and are not intended to limit the scope of the claims of the present invention.

Hereinafter, embodiments relating to the "multifilament three-dimensional knitted fabric, its manufacturing system, and manufacturing method" disclosed by the present invention will be described with specific examples. Those skilled in the art can understand the merits and effects of the present invention from the published contents of the present specification. The present invention can be implemented or applied by other different embodiments. Each subsection in the present specification can also be uniformly modified and modified based on various viewpoints or applications as long as it does not deviate from the spirit of the present invention. Further, the drawings of the present invention are for simple and schematic explanations, and do not show practical dimensions. In the following embodiments, the technical matters relating to the present invention will be further described, but the published contents are not limited to the present invention.

In addition, although various parts or signals may be described in the present specification by terms such as "first", "second", and "third", these parts or signals are limited by these terms. It's not something. It should be understood that these terms are primarily intended to distinguish one component from another, or one signal from another. Also, the term "or" as used herein may include any one or more combinations of related items, depending on the actual circumstances.
[First Embodiment]

As shown in FIG. 1, in the embodiment according to the present invention, the multifilament three-dimensional knitted fabric F is provided. The knitted fabric F includes a surface structure part 1, a base structure part 2, and a support structure part 3. The support tissue portion 3 is arranged between the surface tissue portion 1 and the base tissue portion 2, and the support tissue portion 3 connects the surface of the surface layer tissue portion 1 and the base tissue portion 2 to each other. The support tissue portion 3 includes the first multifilament yarn 31, and the support tissue portion is woven by connecting the surface layer tissue portion 1 and the base tissue portion 2 with the first multifilament yarn 31.

Preferably, the surface tissue portion 1 and the base tissue portion 2 have a denier number of 10 to 150 denier. The surface layer structure portion 1 and the base structure portion 2 include non-stretchable fibers and stretchable fibers, and the ratio of the non-stretchable fibers to the stretchable fibers may be 70:30 to 97: 3. However, it may be 85:15 to 97: 3. The non-stretchable fiber is at least one selected from a set consisting of nylon, polyester fiber, polylactic acid fiber, polytrimethylene terephthalate fiber and cellulose fiber. The stretchable fiber is at least one selected from Spandex®®, Lycra®®, natural rubber and synthetic rubber.

Preferably, the thickness of the supporting tissue portion may be 0.85 mm to 5 mm, but more preferably 2 mm to 5 mm. More specifically, when viewed from the cross-sectional view of FIG. 1, the first multifilament yarn 31 intersects to form an S-shaped structure, so that the multifilament three-dimensional knitted fabric F has a better bearing capacity. It can have appropriate elasticity and cushioning property.

See FIGS. 2A and 2B. 2A and 2B are schematic views showing an enlarged view of the first multifilament yarn 31 of FIG. The first multifilament yarn is twisted into 2 to 75 yarns and then 2 to 10 yarns as compared to a monofilament yarn made with a normal single-hole spinneret. For example, as shown in FIG. 2A, the first multifilament yarn 31 is a multifilament yarn twisted by the first yarn 312 and the second yarn 314. As shown in FIG. 2B, the first multifilament yarn 31 further includes a third yarn 316. The first multifilament yarn can be manufactured by a conventional melt spinning apparatus. Multifilament yarns composed of multiple monofilament fibers provide better support and elasticity than monofilament yarns of the same diameter, have higher bendability and are softer.

Specifically, a single filament of a multifilament yarn is usually thinner than a monofilament yarn. Further, the number of denier of the first multifilament yarn may be 5 to 60 denier, but more preferably 10 to 60 denier. The number of denier of the first thread 312 is 2 to 10 denier. In addition, the shrinkage rate of the multifilament three-dimensional knitted fabric is −5 to 0%.

Specifically, the first yarn 312 is a non-stretchable yarn and is at least one selected from the group consisting of nylon, polyester fibers, polylactic acid fibers, polytrimethylene terephthalate fibers and cellulose fibers.

The present invention then provides a manufacturing system S. The manufacturing system S is used to manufacture the multifilament three-dimensional knitted fabric F. Specifically, the manufacturing system S is a so-called loom. The loom may have the structure of a conventional commercial loom, but the structure and operating parameters have been improved. In general, a loom includes basic components such as a control mechanism, a transport mechanism, a yarn feed mechanism, a yarn storage means, a yarn feeding means, a weaving means, and a cloth winding mechanism, and the function of each component is in this field. It is common sense and will not be repeated here.

In the weaving process, the yarn feed mechanism drives the yarn storage means to supply the yarn to the yarn feeding means, and the yarn is supplied to the weaving means at a constant inlet angle by the yarn feeding means. Weaving means include syringes and knitting needles. A knitting needle is inserted into a groove on the surface of the syringe and the knitting process is controlled by various cams (Cam) in the cam box to form a yarn loop. Among the basic components of the loom 41, the operating parameters of the yarn feeding means are particularly adjusted in the present invention.

Specifically, the knitting needles of the weaving means are thinner than the normal knitting needles, and the weaving thickness is 32 back stitches and 32 front stitches (one is 0.001 cm and 10 microns). The resulting multifilament three-dimensional knitted fabric is more delicate and has better covering properties. In other words, the weaving thickness of 32 knitting needles means that the thickness of the knitting needles is 0.032 cm, and the finer the knitting needles, the higher the accuracy of the product. In addition, the present invention adjusts the amount of thread supplied, back stitches, front stitches, and stitch points of half stitches. In the back stitch / front stitch thread supply amount, the length in one loop is 450 to 700 cm, and in the half stitch thread supply amount, the length in one loop is 1100 to 1800 cm. Is 5 to 10, the scale of the bind-off point of the front stitch is 5 to 10, and the scale of the bind-off point of the half stitch is 0 to 5.

Further, refer to FIG. FIG. 3 is a schematic view of the structure of the yarn feeding nozzle 5 of the yarn feeding means in the manufacturing system of the multifilament three-dimensional knitted fabric according to the embodiment of the present invention. Specifically, the thread feeding nozzle 5 includes a base 51 and a thread gathering member 52. The thread gathering member 52 is arranged below the base 51. The base 51 is even formed into a long block body, and the base 51 is further arranged with a long hole 511 and a screw hole 512 arranged in the middle and lower parts of the base 51. Specifically, the elongated hole 511 and the screw hole 512 are used for adjusting the installation position. The thread gathering member 52 includes a thread inlet 521, and the thread Y passes through the thread inlet 521 at a thread feeding angle θ1 of 40 to 55 degrees. The yarn feeding angle θ1 of the yarn inlet 521 refers to the sandwiching angle between the yarn Y1 and the horizontal plane (indicated by the dotted line) when the yarn Y1 passes through the yarn inlet 521. The thread gathering member 52 is formed in a block body, and the first side surface 522 and the second side surface 523 are on opposite sides to each other, the first side surface 522 is an inclined surface, and the second side surface 523 is an inclined surface. Includes a convex surface away from the first side surface. Further, the thread gathering member 52 further includes a connecting portion (not shown) fixed to one side of the base 51.

By the structural design of the yarn feeding nozzle 5, the yarn feeding angle θ1 can be changed, and the quality of the multifilament three-dimensional knitted fabric F can be improved. Repulsion hardness can reach 90 degrees or more by providing better bearing capacity and rigidity, taking into account both elastic recovery and feel.

[Benefitful effect of the embodiment]

As one of the beneficial effects of the present invention, the multifilament three-dimensional knitted fabric provided by the present invention, a manufacturing system and a manufacturing method thereof, include "the support structure portion includes a first multifilament yarn" and "the above. The multifilament three-dimensional knitted fabric according to the present invention has an appropriate bearing capacity by a technical means such as "the first multifilament yarn interweaves the surface layer structure portion and the base structure portion to weave the support structure portion". That is, it has the same bearing capacity as monofilament fibers, but also has a better feel and comfort, and it is possible to avoid the fibers sticking out from the surface layer and causing tingling discomfort to the skin. can.

In addition, the multifilament three-dimensional knitted fabrics of the present disclosure effectively improve conventional monofilament yarns. Due to the technical feature of the present disclosure, "the first multifilament yarn is formed by twisting 2 to 75 yarns", the woven fabric is provided with better support and higher elasticity. Therefore, the multifilament three-dimensional knitted fabric of the present invention has higher bendability, is softer than monofilament yarn having the same diameter, and can further overcome the problem of monofilament fibers protruding from the surface layer.

According to the results evaluated by the KES Kawabata woven fabric tactile analysis evaluation system, the multifilament three-dimensional knitted fabric provided in the present specification has a woven fabric compression recovery rate of 90% or more and a woven fabric smooth friction coefficient of 0.35 or less. ..

In addition, the present invention further improves the manufacturing system and manufacturing method of the multifilament three-dimensional knitted fabric, overcomes the problems related to thickness loss and wrinkle or crushing defects in the conventional manufacturing process, and further improves the manufacturing efficiency. , Reduce the cost of manufacturing process.

The contents disclosed above are merely preferable practicable examples of the present invention and do not limit the scope of claims of the present invention. All of the equivalent technological modifications made are within the scope of the claims of the present invention.

F: Multifilament three-dimensional knitted fabric 1: Surface structure part 2: Base structure part 3: Support structure part 31: First multifilament thread 312: First thread 314: Second thread 316: Second thread 5: Thread feeding nozzle 51: Base 511: Long hole 512: Thread hole 52: Thread gathering member 521: Thread inlet 522: First side surface 523: Second side surface Y: Thread θ1: Thread feeding angle

Claims (7)

Surface tissue and base tissue,
It has a support tissue portion arranged between the surface tissue portion and the base tissue portion, and has.
The support tissue portion contains a first multifilament yarn, and the first multifilament yarn is woven so as to connect the surface layer tissue portion and the base tissue portion to be formed in the support tissue portion. Multifilament three-dimensional knitted fabric featuring. The surface tissue portion and the base tissue portion include non-stretchable fibers and stretchable fibers.
The multifilament three-dimensional knitted fabric according to claim 1, wherein the ratio of the non-stretchable fiber to the stretchable fiber is 70:30 to 97: 3. The multifilament three-dimensional knitted fabric according to claim 1, wherein the thickness of the supporting tissue portion is 0.85 mm to 5 mm. The multifilament three-dimensional knitted fabric according to claim 1, wherein the number of denier of the first multifilament yarn is 5 to 60 denier. The multifilament three-dimensional knitted fabric according to claim 1, wherein the first multifilament yarn is composed of 2 to 75 yarns twisted together and has a denier number of 0.5 to 30 denier. The multifilament three-dimensional knitted fabric according to claim 6, wherein the yarn is at least one selected from the group consisting of nylon, polyester fiber, polylactic acid fiber, polytrimethylene terephthalate fiber and cellulose fiber. A method for producing a multifilament three-dimensional knitted fabric in which at least one multifilament yarn is supplied to a loom to weave the multifilament three-dimensional knitted fabric.
Surface tissue and base tissue,
It has a support tissue portion arranged between the surface tissue portion and the base tissue portion, and has.
The support tissue portion includes a first multifilament yarn, and the first multifilament yarn is woven into the support tissue portion so as to connect the surface layer tissue portion and the base tissue portion. ,
The loom comprises a yarn feeding means, the yarn feeding means has a yarn feeding nozzle, and the multifilament yarn passes through the yarn inlet of the yarn feeding nozzle at a yarn feeding angle of 40 to 55 degrees. A method for manufacturing a multifilament three-dimensional knitted fabric.

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