JP2001073243A - Yarn made from multifilament and cloth knitted or woven from the yarn - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a yarn which has good touch, rich elasticity, excellent in heat insulation, cushioning property and bulkiness, and is useful for producing a woven fabric, a knitted fabric and so on by arranging synthetic resin filaments or silk monofilaments in an enclosing shape having a hollow portion in the center. SOLUTION: This yarn is obtained by arranging the filaments of a synthetic resin such as polytetrafluroethylene or the monofilaments of silk in an enclosing state having a hollow portion in the center, radially arranging the filaments from the central point in a shape that the outer outline is approximately circular, or arranging the filaments in a shape comprising the combination of the enclosing shape and the radial shape. The yarns 1 are preferably woven or knitted to produce the woven or knitted fabric. The synthetic monofilaments (f) are preferably partially or wholly produced from a fluororesin.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

The present invention relates to a yarn, in which a synthetic resin composed of long fibers and a monofilament composed of silk are used as twisted yarns, and the yarns are arranged in an enclosed shape with a central portion as a space, or radially around a center point of a width section. Cloth knitted yarn.

[0002]

2. Description of the Related Art Conventional yarns are formed by twisting twisted monofilaments. However, such yarns are merely a collection of the strength of physical properties inherent in monofilaments. Did not cause any further functionality.

[0003]

The wool has a wavy shape formed by fibers of 5 to 6 cm, and protects the sheep's body by surrounding it. The wool then overlaps due to its waviness, creating an air layer between the wool and resisting external impacts and temperatures from the outside world. The present invention seeks to create artificial fibers having properties similar to those of natural fibers called wool, inspired by such properties of wool.

[0004]

(First invention) A yarn in which monofilaments made of synthetic resin or silk made of long fibers are used as twisted yarns and arranged in an enclosed shape with a space formed in the center to be integrated.

(Second Invention) A yarn in which monofilaments made of synthetic resin or silk made of long fibers are used as twisted yarns and are radially arranged and integrated about the center point of the cross section.

(Third Invention) A yarn in which monofilaments of synthetic resin or silk composed of long fibers are arranged in a combination of an envelope shape and a radial shape.

(Fourth invention) A synthetic resin containing a fluororesin composed of long fibers or a silk monofilament is used as a twisted yarn and arranged in an enclosed shape with a space formed in the center, or arranged radially around the center of the cross section. A fabric made by weaving and knitting integrated yarn.

[0008]

(Effect of the first invention) Since the yarns are arranged in an enclosed shape with a space s formed in the center portion, an air layer is formed in the space s. Therefore, the air layer exhibits resistance to an external temperature, and the physical properties of the yarn are improved. For example, it is rich in elasticity, and has improved cushioning and heat insulation.

(Effect of the Second Invention) Since the air layer is formed in the space between the long fibers arranged radially, the same effect as the first invention is obtained. In particular, it has a nice touch.

(Effect of the third invention) Since both the first invention and the second invention are provided, an effect that both bulkiness and feel are good can be obtained.

(Effect of the Fourth Invention) The first invention, the second invention,
Since the yarn is knitted using the yarn of the third invention, the air layer existing therein exerts a resistance against external force, and the heat insulating property is improved.

[0012]

(Embodiment of the First Invention) The embodiment of the first invention shown in FIG. 1 will be described below. 1a, 1b, 1c, 1d: yarns The cross section of the yarn of the first invention is annular, as shown in FIGS.
An elliptical shape, an irregular elliptical shape, a cross shape, etc. are taken.
Then, since a space s is formed therein, an air layer is formed in the space s. This air layer is pressure from outside,
Although deformed to some extent when subjected to vibration, the yarn itself imparts bulkiness. Then, the space s is deformed but retained.

(Embodiment of the Second Invention) FIG. 2 illustrates an embodiment of the second invention. The yarn 1 of the second invention has the same monofilaments f as those of the first invention arranged radially around the center point o of the cross section. The second invention also
An air layer is formed in the gap s of the monofilament row. Especially since each monofilament is a twisted yarn,
The filament row itself is integrated and the gap between the filament rows is held without being greatly deformed,
Bulkiness can be maintained because the air layer is interposed.

(Embodiment of the Third Invention) As shown in FIG. 3, since both of the arrangement forms of the first and second inventions are provided, both bulkiness and feel are good.

(Fourth Embodiment) FIGS.
An embodiment of the third invention shown in 5, 6, 7 will be described. The fourth invention is the yarn 1 of the first, second and third inventions,
The present invention relates to a cloth cl formed by knitting 1a, 1b, 1c, and 1d.
The cloth cl of the fourth invention is generally woven as a fabric as shown in FIGS. Yarns 1, 1a, 1b, 1c of the first invention,
When weaving 1d, the space s is kept as an air layer,
The cloth cl has bulkiness as a whole. Further, when the yarn 1 of the second invention is woven, it is formed between the monofilament rows in the space s, and similarly has good bulkiness and good touch.

FIGS. 5, 6 and 7 show a case where the cloth cl of the third invention is used for a blade 7 and a bearing 9 of a wind turbine. in this case,
It is preferable to use a fluorine resin fiber ff as shown in FIG. 8 as the synthetic resin fiber for the cloth cl. Fluorine resin fiber ff
By using, the weather resistance and water repellency are increased, and when used as a windmill cloth, the effect is particularly increased.
When used for the blade 7 as shown in FIG. 6, the aluminum tube 7a is formed in an enclosed shape, and the fluororesin fiber ff is placed in the frame.
Is stretched. 8 is a windmill shaft, 10 is a generator.

When used for the bearing 9 as shown in FIG.
Let h be narrow between the bearing plates 9a, 9a. When used in this manner, the fluorine resin fiber cloth cl exhibits bulky properties against the vibration of the wind turbine shaft 8, and a shock-absorbing bearing having a long life can be formed. It can also absorb dust and the like. The fluororesin fiber cloth cl may be blended or twisted with other synthetic fibers or natural fibers.

(Description of Manufacturing Method) FIG. 9 shows a case where the yarns 1, 1a, 1b, 1c, 1d of the first and second inventions are manufactured by extrusion. In FIG. 9, reference numeral 11 denotes an extruder, 11a denotes a synthetic resin filament that is close to each other and is spun,
b shows the case where they are joined to each other. After each filament is extruded, adjacent filaments are fused. FIG.
Reference numeral 1 denotes a yarn 1 formed from a long fiber filament of the silk yarn 12a. 12b is their adhesive.

The case where the fluorine resin fiber ff is used as the synthetic resin fiber of the cloth c1 of the blade 7 of the wind turbine will be described. PTFE, FEP, ETF
It is desirable to use E, PFA. However, since polytetrafluoroethylene PTFE is non-melting, it cannot be melt-extruded. For this reason, when using ETFE, a multifilament having a predetermined function is made by ram extrusion by mixing naphtha and the like, and this is drawn while passing through a hot cylinder at about 400 ° C., so that it is compressed into a similar shape. Thus, a functional multifilament can be manufactured.

[Brief description of the drawings]

1A is a sectional view of an annular thread 1a, FIG. 1B is a sectional view of an elliptical thread 1b, and FIG. 1C is a sectional view of a modified annular thread 1c.
(D) a cross-sectional view of the cross-shaped yarn 1d in which the space s is arranged,

FIG. 2 is a sectional view of the yarn 1 of the second invention,

FIG. 3 is a sectional view of the yarn 1 of the third invention,

FIG. 4 (a) is a cross-sectional view of a cloth formed from the yarn of the first invention.
(B) FIG. 3 (a) is a view taken in the direction of arrows 3b-3b,

FIG. 5 (a) is a cross-sectional view of a cloth formed of the yarn of the second invention.
(B) a view taken in the direction of arrows 4b-4b in FIG.

FIG. 6 is an overall view of a windmill,

FIG. 7 is a perspective view of a blade 7;

FIG. 8 is a perspective view of a bearing 9;

FIG. 9 is a plan view of a cloth cl using a fluorine resin fiber ff,

FIG. 10 shows a method for producing the yarn of the present invention.

FIG. 11 shows a manufacturing method in the case of bonding as well.

[Explanation of symbols]

 1: yarn, 1a, 1b, 1c, 1d: annular or irregularly-shaped annular yarn, 2: radial yarn, 3: warp (annular) 4: warp (annular), 5: warp (radial) 6 : Warp yarn (annular) 7: Windmill 8: Windmill shaft 9: Bearing, 10: Generator, 11: Extruder, 11a: Extrusion hole, 11b: Synthetic resin fiber, 12a: Silk thread, 12b: Adhesive, cl: cloth, ff: fluororesin fiber, w: windmill device.

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[Procedure amendment]

[Submission date] December 16, 1999 (1999.12.
16)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Full text

[Correction method] Change

[Correction contents]

[Document Name] Statement

Patent application title: Yarn made of multifilament and cloth woven and knitted with the yarn

[Claims]

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION Threads of synthetic resin made of long fibers and monofilament made of silk are arranged in an enclosed shape with a central portion as a space or radially around a center point of a transverse section, and the yarns are woven. Knitted cloth.

[0002]

2. Description of the Related Art Conventional yarns are made by twisting twisted monofilaments. In the case of a synthetic resin, however, a crimping process is first performed and cut into short fibers of 40 mm to 60 mm to obtain a twisted yarn. Was. However, the manufacturing process of such a twisted yarn is complicated and requires high cost.

[0003]

The object of the present invention is to obtain a yarn having the function of a twisted yarn by a simple manufacturing process instead of the complicated yarn manufacturing process described above. That is, when the fabric is woven and knitted as a result, the yarn of the present invention exhibits the same function as the twisted yarn, as in the case of the conventional knitting with a twisted yarn, and seeks to obtain the desired cloth in a simple process. It is. Also, the function of wool creates an air layer between wool,
The yarn of the present invention tries to maintain the same heat insulation as wool, while maintaining heat insulation with the outside.

[0004]

[Technical Means] A yarn in which synthetic filaments or silk monofilaments as long fibers are arranged and integrated in an enclosed shape having a space in the center.

(Second invention) A yarn in which monofilaments made of synthetic resin or silk as long fibers are radially arranged around a center point of a lateral surface and integrated.

(Third invention) A yarn in which monofilaments of synthetic resin or silk as long fibers are arranged in a shape of a combination of an enclosing shape and a radial shape.

(Fourth invention) Synthetic resin or silk monofilaments containing fluorine resin as long fibers are arranged in an enclosed shape having a space in the center, or arranged radially around the center of the lateral surface. Cloth that weaves and knits integrated yarn.

[0008]

(Effect of the first invention) Since the yarns are arranged in an enclosed shape with a space s formed in the center portion, an air layer is formed in the space s. Therefore, the air layer exhibits resistance to an external temperature, and the physical properties of the yarn are improved. For example, it is rich in elasticity, has improved cushioning properties and heat insulation properties, and functions like a twisted yarn.

(Effect of the Second Invention) Since the air layer is formed in the space between the long fibers arranged radially, the same effect as the first invention is obtained. In particular, it has a nice touch.

(Effect of the third invention) Since both the first invention and the second invention are provided, an effect that both bulkiness and feel are good can be obtained.

(Effect of the Fourth Invention) The first invention, the second invention,
Since the yarn is knitted using the yarn of the third invention, the air layer existing therein exerts a resistance against external force, and the heat insulating property is improved.

[0012]

(Embodiment of the First Invention) The embodiment of the first invention shown in FIG. 1 will be described below. 1a, 1b, 1c, 1d: yarns The cross section of the yarn of the first invention is annular, as shown in FIGS.
An elliptical shape, an irregular elliptical shape, a cross shape, etc. are taken.
Since a space s is formed therein, an air layer is formed in the space s. This air layer is pressure from outside,
Although deformed to some extent when subjected to vibration, the yarn itself imparts bulkiness. Then, the space s is deformed but retained.

(Embodiment of the Second Invention) FIG. 2 illustrates an embodiment of the second invention. The yarn 1 of the second invention has the same monofilaments f as those of the first invention arranged radially around the center point o of the cross section. The second invention also
An air layer is formed in the gap s in the space of the monofilament row. In particular, each monofilament is retained without the filament row itself being integrated and the gap between the filament rows is largely deformed, and the bulkiness is maintained because the air layer is interposed.

(Embodiment of the Third Invention) As shown in FIG. 3, since both of the arrangement forms of the first and second inventions are provided, both bulkiness and feel are good.

(Fourth Embodiment) FIGS.
An embodiment of the third invention shown in 5, 6, 7 will be described. The fourth invention is the yarn 1 of the first, second and third inventions,
The present invention relates to a cloth cl formed by knitting 1a, 1b, 1c, and 1d.
The cloth cl of the fourth invention is generally woven as a fabric as shown in FIGS. Yarns 1, 1a, 1b, 1c of the first invention,
When weaving 1d, the space s is kept as an air layer,
The cloth cl has bulkiness as a whole. When the yarn 1 of the second invention is woven, the space s is formed between the monofilament rows, and also maintains bulkiness and good touch.

FIGS. 5, 6 and 7 show a case where the cloth cl of the third invention is used for the blade 7 and the bearing 9 of the wind turbine. in this case,
It is preferable to use a fluorine resin fiber ff as shown in FIG. 8 as the synthetic resin fiber for the cloth cl. Fluorine resin fiber ff
By using, the weather resistance and water repellency are increased, and when used as a windmill cloth, the effect is particularly increased.
When used for the blades 7 as shown in FIG. 6, an aluminum tube 7a is formed as an enclosed frame, and a cloth cl woven with fluororesin fibers ff is stretched in the frame. W is a windmill device,
8 is a windmill shaft, 10 is a generator.

When used for the bearing 9 as shown in FIG.
Let h be narrow between the bearing plates 9a, 9a. When used in this manner, the fluorine resin fiber cloth cl exhibits bulky properties against the vibration of the wind turbine shaft 8, and a shock-absorbing bearing having a long life can be formed. It can also absorb dust and the like. The fluororesin fiber cloth cl may be blended or twisted with other synthetic fibers or natural fibers.

(Description of Manufacturing Method) FIG. 9 shows a case where the yarns 1, 1a, 1b, 1c, 1d of the first and second inventions are manufactured by extrusion. In FIG. 10, 11 is an extruder, 11a
Indicates a case where the spun synthetic resin filaments 11b are bonded to each other in extrusion holes close to each other. After each filament is extruded, adjacent filaments are fused. FIG. 11 shows a yarn 1 formed from a long fiber filament of the silk yarn 12a. 12b is their adhesive.

The case where the fluorine resin fiber ff is used as the synthetic resin fiber of the cloth c1 of the blade 7 of the wind turbine will be described. PTFE, FEP, ETF
It is desirable to use E, PFA. However, since polytetrafluoroethylene PTFE is non-melting, it cannot be melt-extruded. For this reason, when PTFE is used, a multifilament having a predetermined function is made by ram extrusion by mixing naphtha and the like, and this is drawn while passing through a hot cylinder at about 400 ° C., so that it is compressed into a similar shape. Thus, a functional multifilament can be manufactured.

[Brief description of the drawings]

1A is a sectional view of an annular thread 1a, FIG. 1B is a sectional view of an elliptical thread 1b, and FIG. 1C is a sectional view of a modified annular thread 1c.
(D) a cross-sectional view of the cross-shaped yarn 1d in which the space s is arranged,

FIG. 2 is a sectional view of the yarn 1 of the second invention,

FIG. 3 is a sectional view of the yarn 1 of the third invention,

FIG. 4 (a) is a cross-sectional view of a cloth formed from the yarn of the first invention.
(B) FIG. 3 (a) is a view taken in the direction of arrows 3b-3b,

FIG. 5 (a) is a cross-sectional view of a cloth formed of the yarn of the second invention.
(B) a view taken in the direction of arrows 4b-4b in FIG.

FIG. 6 is an overall view of a windmill,

FIG. 7 is a perspective view of a blade 7;

FIG. 8 is a perspective view of a bearing 9;

FIG. 9 is a plan view of a cloth cl using a fluorine resin fiber ff,

FIG. 10 shows a method for producing the yarn of the present invention.

FIG. 11 shows a manufacturing method in the case of bonding as well.

[Description of Signs] 1: Yarn, 1a, 1b, 1c, 1d: annular or irregularly shaped annular yarn, 2: radial thread, 3: warp (annular) 4: warp (annular) 5: warp ( 6: warp (annular) 7: windmill, 8: windmill shaft, 9: bearing, 10: generator, 11: extruder, 11a: extrusion hole, 11b: synthetic resin fiber, 12a: silk thread, 12b: adhesive, cl: cloth, ff: fluororesin fiber, w: windmill device.

Claims (5)

[Claims] 1. A yarn in which monofilaments of synthetic resin or silk composed of long fibers are arranged in an enclosed shape having a space in the center. 2. A yarn in which monofilaments made of synthetic resin or silk made of long fibers are radially arranged from a certain point and such that the outer ring is substantially circular. 3. A yarn in which monofilaments of synthetic resin or silk composed of long fibers are arranged in a combination of an envelope shape and a radial shape. 4. A cloth woven and knitted with a twisted yarn made of a synthetic resin or silk monofilament composed of long fibers, and a yarn in which a space is formed in a central portion, or a yarn arranged in a radial pattern or a combination thereof. 5. The cloth according to claim 3, wherein a fluororesin is used partially or entirely as the synthetic resin for the long fibers.