Belt-like tape, twisted paper yarn therefrom, and fabric using the same

Abstract

To provide a belt-like tape formed by making raw material fibers, specially, plant fibers, subjected to papermaking with a certain width and firmly entangled with a core yarn without damaging original characteristics of the plant fibers, and also to provide a twisted paper yarn that is made by twisting the belt-like tape and has adequate hardness while having flexibility, is light in weight, and excellent in air permeability, moisture absorbing and desorbing property, and skin touch feeling by being repeatedly twisted as necessary.SOLUTION: A belt-like tape 2 is a non-twisted yarn made by making raw material fibers for papermaking subjected to papermaking and entangled with a tensioned core yarn near a center. The raw material fibers for papermaking are entangled with the core yarn while being spaced away by average 200 μm or less in the belt-like tape 2. A twisted paper yarn 10 is formed by twisting the belt-like tape 2.SELECTED DRAWING: Figure 1

Description

Technical Field

[0001] The present invention relates to a strip tape which is a sheet made including a core yarn, a paper yarn twist in which the strip tape is twisted, a fabric woven, knitted or intertwined using the paper yarn twist, a manufacturing apparatus for a strip tape obtained by draining a papermaking raw material beaten and / or defibrated together with a core yarn, a manufacturing method for a strip tape using the same, a manufacturing apparatus for a paper yarn twist for twisting a strip tape, and a manufacturing method for a paper yarn twist using the same.

Background Art

[0002] Paper is generally a product in the form of a sheet that is obtained by defibrating plant fibers, densely intertwining them in water, draining them, thinly spreading them in a planar shape, and drying them, and is used for various purposes such as books, paper, cardboard boxes, and toilet paper.

[0003] Paper is roughly classified into Japanese paper and Western paper according to the raw materials. Japanese paper is paper made by an ancient Japanese technique. It uses materials such as kozo (paper mulberry), mitsumata (edgeworthia), and ganpi (paper mulberry bark). The bark is peeled from these raw logs, the black epidermis of the bark is scraped off to obtain white bark, boiled in alkaline ash or soda ash to dissolve impurities other than fibers, washed with water, then scars and bud scars are removed, and after defibrating, it is mixed with neri, which is a mucus taken from tororo aoi in the old days, and in recent years, it is mixed with a chemical binder such as polyacrylamide. The papermaking raw material is drained through a bamboo sieve or a net to make paper, dehydrated by pressing, etc., and dried. Recently, manila hemp has also been used as a raw material. On the other hand, Western paper is obtained by dissolving lignin from wood mainly composed of coniferous trees to make mechanical pulp or chemical pulp, then beating and / or defibrating it, and then draining it through a net called a wire to make paper, dehydrating it, and drying it.

[0004] As an application product using paper, a paper yarn twist using paper yarn, also called spun yarn, is known. Since the paper yarn twist has a texture similar to that of linen yarn, it can be woven or knitted and used for various fabrics, such as linen-like fabrics, various summer clothing fabrics and obi fabrics, floor mats, towels, and decorative materials.

[0005] As paper yarn, for example, paper, especially Japanese paper, is used as a raw material. Generally, it is known that after being cut into a tape shape with a paper width of 2 to 5 mm, it is appropriately twisted into a yarn shape. Paper yarn made from Japanese paper is unique to our country where Japanese paper is produced.

[0006] As paper yarn, for example, Patent Document 1 discloses a paper yarn formed by helically and gently twisting a water-resistant treated pulp tape into a string shape, and Patent Document 2 discloses a paper yarn formed by helically and gently twisting a paper tape having a fold along the longitudinal direction into a string shape. Since these paper yarns are only twisted tapes, even if the tape is thin, the strength as a yarn cannot be maintained unless it is made of strong Japanese paper. On the other hand, if it is a paper yarn twisted from a Japanese paper tape containing sufficiently strong kozo, mitsumata, ganpi, or Manila hemp fiber, the paper yarn itself tends to become hard and lacks flexibility as a yarn for clothing. Moreover, due to the cutting into a tape shape, when cutting the paper raw material, a cut surface and an edge based on it are generated on the long side of the fiber tape, resulting in a sharp corner, which reduces the texture of the folded corner and is likely to give an unpleasant feeling of irritation and hardness. In addition, it is necessary to perform a complicated process of preparing the paper, slitting it into a tape shape, twisting the yarn, and winding the twisted paper yarn around a winding drum with a winding machine, which is troublesome.

[0007] Also, as another type of paper yarn, there is also known a yarn formed by twisting a paper tape such as Japanese paper around a core yarn such as cotton yarn into a thread shape. For example, Patent Document 3 discloses a composite paper yarn in which a second long fiber covers a fiber bundle formed by false-twisting one paper tape and one or more types of first long fibers attached to the one paper tape. This paper yarn exhibits similar drawbacks due to being cut into a tape shape as described above. Moreover, since it twists a tape and fibers that are much thinner than the tape, it is difficult to keep the relative distance between the tape and the fibers constant, and there is a drawback that unevenness is likely to occur.

[0008] Also, as another type of paper yarn, there is also known a yarn formed by winding and twisting fibers around a core yarn such as cotton yarn into a thread shape. For example, as described in claim 1 of the claims of Patent Document 4, a yarn material supply step of supplying a yarn material in which fibers are mixed with water in a linear or strip shape onto a belt of a knitting tape that is rotationally driven, a moisture removal step of removing moisture from the linear or strip-shaped yarn material supplied onto the belt of the knitting tape, and centering on the portion where the yarn material from which moisture has been removed is located after this moisture removal step, both ends of the belt of the knitting tape are alternately bent upward, moved up and down, and the fibers are intertwined to process them into a thin yarn, and a yarn twisting step of adding twist to the thin yarn separated from the belt of the knitting tape after this fiber intertwining step, and a drying step of drying before and after this yarn twisting step are included. A method for manufacturing a fiber yarn is described. Claim 4 has a fiber intertwining step of intertwining the fibers of the yarn material and the core yarn to process them into a thin yarn. However, in this method, although it has a texture like Japanese paper, it is merely beaten like Japanese paper or at most the core yarn is simply covered with the yarn material (fiber material) and is only rounded or bundled, making it difficult to become dense, the gap between the core yarn and the surrounding yarn material becomes large, there is no sense of unity and it lacks flexibility, and there is little entanglement of the fibers, lacking the performance of a yarn such as cotton yarn or raw silk.

[0009] In addition to sportswear and underwear, in the field of daily necessities, it has been required that even paper yarn twists, especially those made of Japanese paper, which are raw materials, have such characteristics as good breathability, moisture absorption and desorption properties, and excellent texture when used as fabrics with knitted or woven structures having these characteristics.

Prior Art Documents

Patent Documents

[0010]

Patent Document 1

Patent Document 2

Patent Document 3

Patent Document 4

Summary of the Invention

Problems to be Solved by the Invention

[0011] The present invention has been made to solve the above problems, and without impairing the original characteristics of plant fibers, a belt-like tape in which raw material fibers for papermaking, particularly plant fibers, are evenly drained and firmly wound around a core yarn near the center under tension, and the belt-like tape is twisted, and if necessary, repeatedly twisted, so as to have flexibility while having appropriate hardness, being lightweight, having good breathability and moisture absorption and desorption properties, and excellent texture, a paper yarn twist, and a fabric that can be widely used as clothing such as sportswear and underwear or as footwear such as shoes or as daily necessities such as rugs and towels using the same, and a method and an apparatus for manufacturing a paper yarn twist that can be manufactured simply and easily while improving the production process efficiency of the paper yarn twist.

Means for Solving the Problems

[0012] The belt-like tape made to achieve the above object is one in which raw material fibers for papermaking are drained, and the raw material fibers for papermaking are wound around a core yarn near the center under tension, and is characterized by being an untwisted yarn.

[0013] This strip-shaped tape has the papermaking raw material fibers entangled while having a gap of 200 μm or less on average in the core yarn.

[0014] The paper yarn twist product made to achieve the above object is characterized in that the strip-shaped tape is twisted.

[0015] It is preferable that the long-side end of the strip-shaped tape of this paper yarn twist product is not cut off while being wet-laid.

[0016] This paper yarn twist product has, for example, the core yarn being a natural-origin fiber, a chemically synthesized synthetic fiber, a recycled raw material-derived fiber, or a bio-based raw material-derived fiber, made of at least any one synthetic fiber selected from polyester, polyamide (nylon, polyparaphenylene terephthalamide: registered trademark "Kevlar"), polyacrylate, polyacrylonitrile, vinylon (polyvinyl alcohol), polyolefin (polyethylene, polypropylene), polyvinyl chloride, polyvinylidene chloride, and polyurethane; made of at least any one semi-synthetic fiber selected from acetate, triacetate, and promix; made of at least any one chemical fiber and / or regenerated fiber selected from viscose rayon (simply referred to as rayon), cuprammonium rayon (cupra. registered trademark "Bemberg"), polynosic, lyocell (brand name "Tencel"), and insolubilized alginic acid fiber; and made of at least any one natural non-wood fiber selected from seed hair fibers selected from cotton and kapok, bast fibers selected from ramie, hemp, and kenaf, leaf fibers selected from Manila hemp (abaca) and banana, and other plant fibers selected from bamboo, reed, papyrus, and rush; made of at least any one animal fiber selected from wool, cashmere, silk, and camel hair; made of at least any one inorganic fiber selected from glass fiber, alumina fiber, and metal fiber (stainless steel or copper); made of carbon fiber; or a blended product thereof is what is stated.

[0017] This paper yarn twist product is such that the core yarn is either an untwisted single fiber; a single-twist fiber yarn obtained by twisting the single fiber; a fiber bundle formed by bundling a plurality of fibers; a single-twist fiber yarn obtained by twisting a plurality of the single-twist fiber yarns or the fiber bundle; or a multi-twist yarn obtained by twisting a plurality of single-twist fiber yarns; and is either a yarn row in which a plurality of any of them are arranged side by side.

[0018] This paper yarn twist product may be such that the core yarn is a single one of the core yarns and is arranged at the center of the strip-shaped tape, or is a plurality of the core yarns and is arranged such that their central axes are at the center of the strip-shaped tape.

[0019] This paper yarn twist product is such that the core yarn has a fineness of, for example, 75 to 600 denier, preferably 150 to 300 denier.

[0020] This paper yarn twist product is such that the strip-shaped tape has a width of, for example, 3 to 15 mm, preferably 3 to 10 mm.

[0021] This paper yarn twist product may be a single paper yarn twist product yarn obtained by twisting a single strip-shaped tape; or a string obtained by twisting a plurality of the single paper yarn twist product yarns together, a rope obtained by twisting a plurality of the strings together, a cord obtained by twisting a plurality of the ropes together, or a large cord obtained by twisting any of the single paper yarn twist product yarn, the string, the rope, and the cord together, which is a composite paper yarn twist product yarn.

[0022] This paper yarn twist product is such that, for example, the single paper yarn twist product yarn is S-twisted or Z-twisted, or the composite paper yarn twist product yarn is any combination selected from S-twisted, Z-twisted, and two-fold twisted.

[0023] This paper yarn twist product is such that the raw material fibers for papermaking are natural origin fibers or recycled material fibers, At least any one of the wood fibers selected from broad-leaved trees such as beech, maple, oak, chestnut, horse chestnut, and / or elm, and coniferous trees such as cedar, pine, fir, cypress, and / or hemlock, At least any one of the herbaceous bast fibers selected from paper mulberry, mitsumata, ganpi, mulberry, hemp, flax, ramie, kenaf, jute, and Philippine ganpi (sarago), At least any one of the leaf fibers selected from Manila hemp (abaca), sisal hemp, banana, pineapple, and banana, At least any one of the other plant fibers selected from bamboo, rice straw, wheat straw, bagasse, esparto, reed, papyrus, and rush, At least any one of the seed hair fibers selected from cotton, linter, kapok, coconut, and palm, At least any one of the animal fibers selected from wool, cashmere, silk, camel hair, and feathers, Pulp fibers selected from wood pulp and herb pulp, Powder-containing pulp fibers in which inorganic powder and / or organic powder is blended or incorporated into the pulp fibers, Recycled fibers selected from the material recycling materials of any of the above fibers and waste paper pulp made from waste paper It is at least any one of the fibers selected from the above.

[0024] This paper yarn twist may be, for example, a soft twist with a maximum twist number T of 500 per meter, or a medium twist with a twist number T exceeding 500 and less than 1000, or a strong twist with a twist number T of at least 1000. Specifically, the twist number T is 100 to 4000, preferably 225 to 625.

[0025] The fabric made to achieve the above object is a fabric using the above paper yarn twist, and is either a woven fabric using the paper yarn twist as the warp and / or weft, or a knitted fabric knitted while including the paper yarn twist.

[0026] The product made of paper yarn twist is selected from fabrics, clothing, footwear, bags, daily necessities, and decorative fabrics using this fabric.

[0027] The manufacturing apparatus of the strip tape made to achieve the above object includes a core yarn pay - out machine, a storage tank for storing the beaten and / or defibrated papermaking raw material fibers in water, a screen for draining the papermaking raw material fibers supplied from the storage tank onto the core yarn while arranging the tensioned core yarn closer to the center and winding the fibers around the core yarn to form a strip tape made of paper, and a dryer for drying while feeding out the strip tape drained together with the core yarn. It is characterized by having a screen that covers the slit of the tape width.

[0028] The manufacturing apparatus of the paper yarn twist made to achieve the above object includes a core yarn pay - out machine, a storage tank for storing the beaten and / or defibrated papermaking raw material fibers in water, a screen for draining the papermaking raw material fibers supplied from the storage tank onto the core yarn while arranging the tensioned core yarn closer to the center and winding the fibers around the core yarn to form a strip tape made of paper, a dryer for drying while feeding out the strip tape drained together with the core yarn, a twisting machine for twisting the strip tape together with the core yarn to form a paper yarn twist, and a winding machine for winding up the paper yarn twist. It is characterized by being provided with these components.

[0029] The manufacturing method of the paper yarn twist made to achieve the above object is characterized by paying out a core yarn and arranging the tensioned core yarn closer to the center, while winding the papermaking raw material fibers that are being beaten and / or defibrated in water around the core yarn and draining them into a strip tape made of paper, drying while feeding out the strip tape drained together with the core yarn, and then twisting the strip tape together with the core yarn to form a paper yarn twist.

Effects of the Invention

[0030] The strip tape and paper yarn twist of the present invention are a combination of a core yarn and plant fibers including raw fibers for papermaking. Since the end of the long side of the tape is not cut but only drained and gently interrupted, the raw fibers are not cut, the corners are not sharp, and the drained fibers are gently and unevenly interrupted. Therefore, it does not have a hard and tense feeling, but has low irritation. Also, in this paper yarn twist, the core yarn, especially the fiber of the filament of the core yarn, and the raw fiber for papermaking are sufficiently and freely intertwined and inseparable, and have voids and are densely assembled with the papermaking part to form a soft and gentle texture like Japanese paper, and are integrated and drained into a certain width and twisted. As a result, this paper yarn twist has innumerable void holes in the strip tape made of paper like ordinary Japanese paper, and the gap is larger than that of ordinary yarn for twisting this strip tape.

[0031] In particular, this paper yarn twist is such that the raw fiber for papermaking is caught by, wrapped around, and / or wound around the core yarn, especially the fiber of the filament of the core yarn, and has a gap of about 200 μm or less on average while being sufficiently intertwined and inseparable, and being integrated. Due to this, the paper yarn twist does not cut or break at the weaker part between the papermaking part and the core yarn part of the strip tape 2 due to insufficient strength, and there is no shape change due to the displacement between the core yarn 3 and the fiber of the strip tape 2, and it has excellent dimensional stability.

[0032] Therefore, this paper yarn twist can exhibit the characteristics of the core yarn itself, such as appropriate elongation, sewability, excellent strength, and heat resistance, while taking advantage of the characteristics of paper, especially Japanese paper, such as excellent moisture absorption and quick drying (rapid moisture absorption and release), high air permeability, flexibility, a lightweight feeling with only about 60% of the weight of cotton yarn of the same diameter, a texture and dry touch feeling, a gentle stiffness and firmness, a smooth texture, anti-pilling property with less fuzzing, strong strength, high color development, heat resistance, and weather resistance, without impairing the original characteristics of the plant fibers. Depending on the raw materials, it may exhibit biodegradability in some cases.

[0033] By using this paper yarn twist to make a woven or knitted fabric, the fabric of the present invention has excellent properties such as moisture absorption and quick drying, high breathability, flexibility, lightness, a smooth touch, a dry touch, a soft texture with firmness and resilience, strong strength, high color development, heat resistance, appropriate elongation, excellent strength, and a smooth texture. Depending on the raw material, it may exhibit biodegradability.

[0034] According to the manufacturing method and manufacturing apparatus of the paper yarn twist of the present invention, while improving the production process efficiency of the above-mentioned paper yarn twist, it is suitable for small to large-scale production, and can simply and easily manufacture the paper yarn twist with good yield and quickly.

Brief Description of the Drawings

[0035]

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Embodiments for Carrying Out the Invention

[0036] Hereinafter, embodiments for carrying out the present invention will be described in detail, but the scope of the present invention is not limited to these embodiments.

[0037] The belt-shaped tape 2 of the present invention, referring to FIG. 1 showing the manufacturing process, is such that the core yarn 3 composed of a single core yarn tensioned in the longitudinal direction a-a' is located closer to the center of the slit 12, that is, closer to the center in the width direction (the vertical direction on the smooth surface 2' in the longitudinal direction a-a': the same as the paper width direction), preferably along the center line (the center line in the longitudinal direction a-a' of the belt-shaped tape 2), more preferably arranged to overlap on the center line, and while being arranged in the middle in the thickness H direction of the belt-shaped tape 2 (refer to FIG. (a) of the same figure), preferably in the middle, it is a belt-shaped tape 2 made by papermaking that is formed together with the core yarn 3 so as to be entangled with the papermaking raw material fibers 4. The papermaking raw material fibers 4 are entangled and integrated by being caught, wrapped around, and / or wound around the fibers of the filaments of the core yarn 3, and the papermaking raw material fibers 4 are further entangled with other papermaking raw material fibers 4 to form a papermaking part.

[0038] This belt-shaped tape 2 has a gap of 200 μm or less on average, preferably 175 μm or less, more preferably 135 μm or less with respect to the core yarn, and more specifically, the gap is at most 450 μm and at most 200 μm on average, and the papermaking raw material fibers are entangled.

[0039] Also, the paper yarn twist 10a of the present invention is such that the belt-shaped tape is twisted (refer to FIG. (b) of the same figure). It is efficient to manufacture a plurality of belt-shaped tapes 2 together.

[0040] The belt-like tape 2 is formed by draining up from the fiber slurry 61 containing the papermaking raw material fibers 4 together with the core yarn 3 with a draining net 11 disposed so as to cover the opening on the side opposite to the papermaking forming side of the slit 12 formed in the paper draining tool 13. While the core yarn 3, particularly the fibers of the filaments of the core yarn 3, are immersed in the fiber slurry 61 and drawn in while being tensioned, the papermaking raw material fibers 4 with high freedom while flowing in the fiber slurry 61 are caught around the entire circumference of the fibers of the filaments of the core yarn 3, wrapped around, and / or wound around. Further, as the excess water freely falls when being drained up by the draining net 11, the papermaking raw material fibers 4 remaining on the draining net 11 are sufficiently entangled with the fibers caught on, wrapped around, and / or wound around the core yarn 3, so that the gap between the core yarn 3 and the papermaking raw material fibers 4 is integrated while being close to about 200 μm or less on average while being homogenized. For this purpose, the papermaking speed (in other words, the pulling speed of the core yarn 3; further in other words, the rotation speed of the cylinder screen 62 (see also FIG. 4)) is preferably 1 to 50 m / min (that is, 16.7 to 833.3 mm / sec), preferably 3 to 20 m / min (that is, 50 to 333.3 mm / sec). The long-side end portion 5 in the longitudinal direction a-a' of the belt-like tape 2 is formed in accordance with the slit 12. Therefore, the belt-like tape 2 is drained up in accordance with the slit end portion 12' in the longitudinal direction a-a' of the slit 12 of the paper draining tool 13. However, at the long-side end portion 5, it is much more uneven than the cut surface of the paper. Rather, it remains undrained during draining and is not cut off. Together with the fact that some of the papermaking raw material fibers 4 slightly protrude unevenly from the surface of the long-side end portion 5, the belt-like tape 2 has a good texture at the long-side end portion 5 as a whole.

[0041] The belt-like tape 2 is drained up and papermade so that its width W, that is, the paper width, is a paper width with a lower limit of 2 mm to an upper limit of 15 mm, preferably 3 to 10 mm. If the width of the belt-like tape 2 becomes less than 2 mm, not only will the position of the core yarn 3 vary, but also the amount of papermaking for forming the belt-like tape 2 will be too small, and the papermaking performance cannot be sufficiently exhibited when making a paper yarn twist. On the other hand, if the width of the belt-like tape 2 exceeds 15 mm, it becomes difficult to twist, and the twist becomes uneven, resulting in poor homogeneity and reproducibility.

[0042] The belt-shaped tape 2 is formed by draining and papermaking so that its thickness H is a paper thickness of 10 to 100 μm, preferably 10 to 60 μm. If the thickness of the belt-shaped tape 2 exceeds the upper limit of 100 μm, it will be too thick and difficult or impossible to twist into a paper yarn twist. On the other hand, if the thickness of the belt-shaped tape 2 is less than the lower limit of 10 μm, it will be approximately equal to the diameter of one raw fiber, too thin, and the papermaking performance when made into a paper yarn twist cannot be fully exerted.

[0043] The belt-shaped tape 2 preferably has, for example, a basis weight of 2 to 40 g / m 2 and more preferably 4 to 20 g. Also, as the weight of the papermaking part, the basis weight is 3 to 30 g, preferably 5 to 30 g, more preferably 4 to 20 g / m 2 and even more preferably 6 to 15 g, and still more preferably 6 to 7 g / m 2 is set.

[0044] The belt-shaped tape 2 has an appropriate paper width and thickness while the core yarn 3 is disposed inside, and the papermaking raw fiber 4 is caught by the fiber of the filament of the core yarn 3, wrapped around, and / or wound around and entangled. Further, by papermaking the papermaking raw fiber 4, it can be made into a homogeneous and evenly twisted paper yarn twist 10 (see FIG. 5).

[0045] In the slurry 21 containing the papermaking raw fiber 4, the papermaking raw fiber 4 is beaten and / or defibrated natural-derived fiber or recycled fiber. Specifically, wood fiber (stem fiber), for example, at least any one wood fiber (stem fiber) selected from hardwoods such as beech, maple, oak, paulownia, birch, and / or elm, and conifers such as cedar, pine, fir, cypress, and / or hemlock, or herbaceous bast fiber, for example, at least any one bast fiber selected from kozo, mitsumata, ganpi, mulberry, mulberry, hemp, flax, ramie, kenaf, jute, and Philippine abaca (sarago), or At least one leaf fiber selected from leaf fibers such as Manila hemp (Abaca), sisal hemp, banana, pineapple, and banana, or At least one other plant fiber selected from other plant fibers such as bamboo, rice straw, wheat straw, bagasse, esparto, reed, papyrus, and rush, or At least one seed hair fiber selected from seed hair fibers such as cotton, linter, kapok, coconut, and palm, or At least one animal fiber selected from animal fibers such as wool, cashmere, silk, camel hair, and feathers, or Pulp fibers selected from pulp fibers such as wood pulp and herb pulp, or Powder-containing pulp fibers, for example, powder-containing pulp fibers in which inorganic powder (for example, mineral powder such as titanium oxide, zeolite, or talc, calcium carbonate powder such as shell powder, or calcium carbonate-containing powder) and / or organic powder (for example, eggshell membrane powder or polymer powder) is blended or incorporated into the pulp fibers, or Recycled fibers, for example, recycled fibers selected from material recycling materials of any of the above fibers and waste paper pulp made from waste paper, or Any of their mixed fibers At least one fiber selected from these. Among them, those commonly used for Japanese paper are preferably herbaceous bast fibers selected from kozo, mitsumata, and ganpi, or leaf fibers such as Manila hemp.

[0046] In the beating slurry 21 containing the papermaking raw material fiber 4, by adjusting the concentration of the papermaking raw material fiber 4 or by adjusting the papermaking speed (that is, the pulling speed of the core yarn 3 or the rotational speed of the cylinder screen 62), it is possible to control the basis weight of the strip tape 2 or the papermaking part thereof.

[0047] The papermaking raw material fiber 4 has a fiber length of 30 mm or less, preferably 5 to 15 mm, more preferably around 10 mm. It may be beaten and / or defibrated and cut to have such a fiber length.

[0048] As shown in Fig. 2(a), the core yarn 3 may be composed of a single fiber 3a. It may also be a single-twist single-fiber yarn (not shown) obtained by twisting this single fiber 3a. As shown in Fig. 2(b), it may be a fiber bundle 3b formed by bundling a plurality of fibers 3a ··· 3a. It may also be a single-twist fiber yarn 3c obtained by twisting the fiber bundle 3b composed of the plurality of fibers 3a. Further, as shown in Fig. 2(d), it may be a multi-twist yarn 3d obtained by ply-twisting a plurality of single-twist fiber yarns 3c that are twisted in the opposite direction. As represented by the example of the single-twist fiber yarn 3c in Fig. 2(e), any one of the fiber 3a, the single-twist single-fiber yarn, the fiber bundle 3b, the single-twist fiber yarn 3c, and the multi-twist yarn 3d may form a yarn row 3e. In any case, the core yarn 3 is disposed closer to the center, preferably at the center, of the belt-like tape 2 so that it is likely to be homogeneous when twisted.

[0049] The fiber diameter Φ of a single fiber 3a (see Fig. 2(a)) is preferably about 1 to 8 deniers (about 30 μm at 8 deniers), more preferably about 2 to 3 deniers. The diameter of the fiber bundle 3b (see Fig. 2(b)) formed by bundling a plurality of fibers 3a ··· 3a or the single-twist fiber yarn 3c (see Fig. 2(c)) obtained by twisting is at most about 60 μm when two are bundled or twisted, and is about 75 to 600 deniers, preferably about 150 deniers, when 75 are bundled or twisted. The fiber diameter φ of the single-twist single-fiber yarn, the fiber bundle 3b, the single-twist fiber yarn 3c, and the multi-twist yarn 3d (see Figs. 2(c) to 2(d)) is determined according to the number of fibers 3a ··· 3a bundled or twisted. Note that the denier value indicates the mass (g) of 9000 m of a fiber or the like.

[0050] Since the fiber diameter Φ or the fiber diameter φ of the core yarn 3 is smaller than the thickness H of the belt-like tape 2, the core yarn 3 does not protrude from the smooth surfaces 2 on the upper and lower surfaces of the belt-like tape 2.

[0051] The core yarn 3 is, for example, a filament composed of continuous long fibers.

[0052] The material of the core yarn 3 is not particularly limited as long as it can maintain the properties of the paper yarn twist 10 (see FIG. 5; the same applies hereinafter), and it may be a commercially available product, a natural fiber, a synthetic fiber derived from chemical synthesis, a fiber derived from recycled raw materials, or a fiber derived from bio-based raw materials. Specifically, made of at least one synthetic fiber selected from polyester, polyamide (e.g., nylon, polyparaphenylene terephthalamide: registered trademark "Kevlar"), polyacrylate, polyacrylonitrile, vinylon (polyvinyl alcohol), polyolefin (e.g., polyethylene, polypropylene), polyvinyl chloride, polyvinylidene chloride, and polyurethane; made of at least one semi-synthetic fiber selected from acetate, triacetate, and promix; made of at least one chemical fiber and / or regenerated fiber selected from viscose rayon, cuprammonium rayon (cupra. registered trademark "Bemberg"), polynosic, lyocell (brand name "Tencel"), and insolubilized alginate fiber; and made of at least one natural non-wood fiber selected from seed hair fibers selected from cotton and kapok, bast fibers selected from ramie, hemp, and kenaf, leaf fibers selected from Manila hemp (abaca) and banana, and other plant fibers selected from bamboo, reed, papyrus, and rush; made of at least one animal fiber selected from wool, cashmere, silk, and camel hair; made of at least one inorganic fiber selected from glass fiber, alumina fiber, and metal fiber (stainless steel or copper); made of carbon fiber; or a blended product thereof may be used.

[0053] The paper yarn twist 10 may be a single paper yarn twist yarn 10a in which a single strip-shaped tape 2 is twisted (see Fig. 1(b)), or a string 10b in which a plurality of, for example, 2 to 4, preferably 2, single paper yarn twist yarns 10a are twisted together (see Fig. 3(a)). It may also be a composite paper yarn twist yarn selected from a string (not shown) in which a plurality of, for example, 2 to 4, preferably 2, of these strings 10b are twisted together, and a small rope (not shown) in which a plurality of, for example, 2 to 4, preferably 2, of these ropes are twisted together.

[0054] As shown in Fig. 1(b), in the case of the single paper yarn twist yarn 10a, the paper yarn twist 10 is twisted in an S twist (right twist) or a Z twist (left twist), preferably a Z twist. Also, as shown in Fig. 3(a), in the case of the string 10b in which a plurality of, for example, 2, single paper yarn twist yarns 10a are twisted together, the single paper yarn twist yarn 10a of, for example, an S twist or a Z twist is twist-twisted in the reverse Z twist or S twist. Further, in the case of the small rope in which a plurality of, for example, 2, strings 10b are twisted together, the paper yarn twist 10 is twist-twisted in an S twist or a Z twist with a plurality of strings of, for example, a Z twist or an S twist. Also, any one of the single paper yarn twist yarn 10a, the string 10b, and the small rope may be combined and twist-twisted in an S twist or a Z twist to form a large rope, and further, a plurality of them or a plurality of these may be successively twist-twisted (not shown) (hereinafter, any one of the single paper yarn twist yarn 10a, the string 10b, the string, the small rope, or the large rope, or these collectively may also be referred to as the paper yarn twist 10). Although single twist and various twists have been described as examples, it may be a stud twist, a wall twist, or a decorative twist.

[0055] When the paper yarn twist 10 is twisted in an S twist, a Z twist, or a combined twist, it may be twisted in any of a loose twist in which the number of twists T per meter is less than 500, a medium twist (medium twist) in which the number of twists T is 500 or more and less than 1000, and a strong twist in which the same number of twists T is 1000 or more, but it is preferably 100 to 4000, and more preferably 225 to 625.

[0056] Using the paper yarn twist 10, various fabrics can be prepared (not shown).

[0057] Fabrics include woven fabrics and knitted fabrics.

[0058] Among the fabrics, examples of woven fabrics include those woven using the paper yarn twist 10, those woven with either or part of the warp and weft being the paper yarn twist 10 and the other being various yarns such as cotton yarn, hemp yarn, wool yarn, silk yarn, rayon yarn, nylon yarn, polyester yarn, acrylic yarn, etc., and those woven with either the warp or the weft being the paper yarn twist 10. The weaving method is not particularly limited. When weaving on a loom, it may be plain weave, twill weave, or satin weave, or other weaving methods.

[0059] Among the fabrics, examples of knitted fabrics include those knitted only with the paper yarn twist 10 or those knitted with the paper yarn twist 10 and the various yarns mentioned above. The knitting method is not particularly limited. When knitting with a knitting machine or by hand, it may be plain knitting (stockinette stitch), rib knitting, or pearl knitting, or other knitting methods.

[0060] Such woven fabrics and knitted fabrics are widely used as clothing materials, such as fabrics for Western-style or Japanese-style clothing, knitted fabrics; clothing, such as Western-style clothes, Japanese kimonos, sweaters, shirts, gowns, stoles, shawls, underwear, undergarments, socks, sportswear, kimonos; footwear, such as shoes, sneakers, straw sandals; bags and pouches, such as shoulder bags, handbags, wallets, and pouches; daily necessities, such as items around the body like towels and handkerchiefs, and kitchen utensils like coasters; decorative fabrics, such as curtains, screens, tapestries, and decorative fabrics for dolls.

[0061] Such fabrics are formed using the paper yarn twist 10. Depending on the raw materials, the core yarn 3, the paper yarn twist 10, especially the paper yarn twist 10, is biodegradable and does not impose a burden on the environment, or if it is plant-derived, even when incinerated or discarded, it is still plant-derived and does not increase carbon dioxide emissions.

[0062] Hereinafter, the manufacturing apparatus 100 for the paper yarn twist 10 and the manufacturing method using the same will be described. As a specific example, an example of the manufacturing method of the paper yarn twist 10 will be described using Japanese paper, especially that made from kozo, as the strip tape and rayon yarn as the core yarn. However, the technical scope of the present invention is not limited to this specific example.

[0063] First, the preparation process of the paper yarn twist 10 using kozo as the raw material will be described with reference to FIGS. 4 and 5 as follows. The paper yarn twist 10 is manufactured using the manufacturing apparatus 100 for the paper yarn twist.

[0064] The manufacturing apparatus 100 for the paper yarn twist consists of a strip tape manufacturing apparatus 100A (see FIG. 4) and a twisting apparatus 100B (see FIG. 5).

[0065] The strip tape manufacturing apparatus 100A While immersing kozo, which is a raw fiber for papermaking, in water in a beating tank 23, a beating roller 22 with a steel blade embedded therein is rotated, and strong compressive force and shear force are applied to the kozo fibers between the beating roller 22 and a fixed blade installed below it to grind and beat them into a beating slurry 21. A beater (Hollander beater) 20 The beating slurry 21 is pumped and transferred to a defibrating tank 33, and a defibrating machine (Naginata beater) 30 that turns the defibrating slurry 21 into a defibrated slurry 31 while rotating a defibrating roller 32 having a sickle blade The defibrated slurry 31 is pumped out from the storage tank 43 and transferred and continuously injected, while being pumped out and transferred to a vat 63 and continuously discharged. By making the water flow meander by a refiner plate protruding from the bottom of the tank to the liquid surface side and a refiner plate 42 extending from the liquid surface to the bottom side of the tank in the storage tank 43, the strip tape 2 or its papermaking part is made into a stirring slurry 41 with a predetermined basis weight and a concentration such that the fibers are uniformly stirred. A refiner 40 A core yarn pay - out machine 50 that pays out the core yarn 3 while keeping it under tension A relatively large vat 63 is provided which has a pump for continuously transferring the stirring slurry 41 so that the belt-like tape 2 or its papermaking part has a concentration such that it has a predetermined basis weight. The core yarn 3 is guided into the fiber slurry 61 containing the papermaking raw material fibers 4 (see FIG. 1) at a constant concentration by a guiding tube 64, and the core yarn 3 is immersed in the fiber slurry 61. During this process, the papermaking raw material fibers 4 catch on, wrap around, and / or start to wind around the core yarn 3 and become entangled. Then, the core yarn 3 is drawn while the tension direction is changed by a guiding roller 65 so as to contact the cylinder net 62. The papermaking raw material fibers 4 in the fiber slurry 61 are drained together with the core yarn 3 through the net 11 (see FIG. 1) starting from the point where the draining of the core yarn 3 begins while the core yarn 3 is under tension. By draining the papermaking raw material fibers 4 together with the core yarn 3, the fiber of the filament of the core yarn 3 and the papermaking raw material fibers 4 are tightened and integrated, and are papermade together with other papermaking raw material fibers 4. Excess moisture is allowed to fall naturally into the cylinder to form a wet belt-like tape 2, and a belt-like tape papermaking machine having a cylinder net 62. A dryer 70 that drives the wet belt-like tape 2 with a feed belt (not shown) driven by a cooch roll, transfers it to a drying drum 71 by a feed guiding roller 72 for drying, and peels the dried belt-like tape 2 from the drying drum 71 by a guiding roller 73. It has a belt-like tape winding machine that winds up the obtained belt-like tape 2 with a winding roll 81.

[0066] The twisting device 100B has a bobbin 90 that twists the belt-like tape 2 fed out from the winding roll 81 into a paper yarn twist 10 and then winds it up.

[0067] The belt-like tape 2 and the paper yarn twist 10 are manufactured as follows.

[0068] To manufacture the strip tape 2 and the paper yarn twist 10, first, cut down the cultivated and defoliated kozo logs, steam them in a kettle to soften the bark, then peel the bark to obtain white bark, remove attached foreign matters, scratches, etc., air-dry them, and store them to use as kozo raw materials. Cut this kozo raw material. To remove impurities and improve the permeability of caustic soda during cooking, soak the kozo raw material in running water in a water tank for 7 days. After performing a cooking process in an aqueous solution of alkaline ash lye, soda ash, or caustic soda, preferably granular caustic soda (manufactured by Tosoh Corporation), to dissolve the impurities, perform degassing and water exposure again in a running water tank to obtain refined kozo.

[0069] In addition, instead of the paper yarn twist using kozo, it may be a paper yarn twist using at least any one of herbaceous bast fibers selected from Mitsumata, Ganpi, mulberry, hemp, flax, ramie, kenaf, jute, and Philippine abaca. In addition, it may also be a paper yarn twist using at least any one of the above-mentioned leaf fibers, the other plant fibers, the seed hair fibers, the animal fibers, the pulp fibers, the powder-containing pulp fibers, and the recycled fibers. Among them, those generally used for Japanese paper, herbaceous bast fibers selected from kozo, Mitsumata, and Ganpi, or leaf fibers such as Manila hemp and pulp fibers such as wood pulp are practical and preferable.

[0070] Next, as shown in FIG. 4, water is added to the refined kozo in the beating tank 23 so that it becomes about 1 to 2% by weight, and the refined kozo fibers are crushed and beaten with a beater 20 to obtain a beaten slurry 21. Then, the beaten slurry 21 is transferred to a defibrating tank 33 and defibrated with a defibrator 30 having a sickle-shaped rotating blade to obtain a defibrated slurry 31 as raw fibers for papermaking. Next, a binder (natural binders such as Abelmoschus manihot, bark of Wikstroemia sikokiana, roots of Aristolochia debilis, Plumbago zeylanica, Polygonum multiflorum, Lycoris radiata, Smilax china, Rubus parvifolius, etc. that have been used since ancient times; chemical binders such as sodium acrylate copolymer (manufactured by Dainitrix Co., Ltd., trade name: Acrypers), granular binder Palmall (manufactured by Meisei Kagaku Kogyo Co., Ltd.), and polyacrylamide, preferably chemical binders), more specifically, granular binder Palmall (mixing concentration 0.02%) and the defibrated slurry 31 having raw fibers for papermaking which are defibrated kozo are made. Next, the defibrated slurry 31 is transferred to a storage tank 43 and, by a refiner 40, it is made into a stirred slurry 41 in which the raw fibers for papermaking which are defibrated kozo are uniformly stirred.

[0071] The stirred slurry 41 is diluted as necessary, pumped up, and continuously transferred to a core yarn - combined draining vat 63 to obtain a fiber slurry 61 in which the raw fibers for papermaking 4 (also refer to FIG. 1) are uniformly dispersed.

[0072] On one hand, a core yarn 3 (see Fig. 2(b) or (c)), which is formed by bundling or twisting a plurality of fibers of rayon filaments, is drawn out from a core yarn pay - out machine 50 while being tensioned, and is sent out to a considerably large core - sizing vat 63. Then, it is redirected by a guiding pipe 64 and immersed in a fiber slurry 61. At this time, in the vat 63, the fibers of the fiber slurry 61 start to become intertwined with the core yarn 3 while getting caught, wrapped around, or coiled around it, and are slowly drawn towards the side of the cylinder - type wire screen 60. The core yarn 3 is brought into contact with the cylinder - type wire screen 62 by a guiding roller 65. The fibers of the fiber slurry 61 that freely float around the core yarn 3 become more caught, wrapped around, or coiled around the fibers of the filaments of the core yarn 3 on the cylinder - type wire screen 60 and become further intertwined, and are sized in a tape - like shape while being intertwined around the core yarn 3 three - dimensionally.

[0073] The cylinder - type wire screen 60 has a wire screen 11 arranged along the circumferential direction of the cylinder - type wire screen so as to cover the side opposite to the papermaking - forming side of a plurality of slits 12 with a width of 2 - 15 mm, so that it can be used as a papermaking tool 13. By rotating slowly at a speed of 1 - 50 m / min, preferably 3 - 20 m / min, the fibers of the fiber slurry 61 are scooped up on the papermaking - forming side of the slit 12, and while pulling and tensioning the core yarn 3 so that it is at the center of the wire screen 11, papermaking can be carried out together with the core yarn 3 (see Fig. 1). At this time, since the core yarn 3 is attracted by the guide roller 72 and the core yarn 3 that has been formed into paper is being drawn, it is under tension. Therefore, as the circular net cylinder 62 rotates, the fibers of the fiber slurry 61 that are caught, wound around, or wrapped around the fibers of the filaments of the core yarn 3 are scooped up while becoming entangled, and the core yarn 3 is scooped up as a whole like papermaking. As a result, since the fibers of the fiber slurry 61 have already been caught, wound around, or wrapped around the fibers of the filaments of the core yarn 3 and the fibers of the core yarn 3 and the fibers of the fiber slurry 61 are entangled, this becomes an opportunity for the fiber slurry 61 to become more entangled with the core yarn 3. As it is scooped up together with other fiber slurries 61 and finally becomes intricately entangled and integrated, the core yarn near the center under tension is entangled with the papermaking raw material fibers, and the gaps between the fibers are made uniform and densely gathered and entangled, so that a wet belt-shaped tape 2 made of un-twisted yarn can be obtained.

[0074] A plurality of core yarns 3 are arranged preferably in the center, closer to the center of the slit width, on the screen 11 of the slit 12, and are scooped up by the papermaking tool 13 on the circular net cylinder 62 provided with one or more screens 11 together with the papermaking raw material fibers 4 in the fiber slurry 61 for each core yarn 3. By making the inside of the circular net cylinder 62 hollow, the moisture in the fiber slurry 61 becomes water droplets and naturally falls into the inside of the circular net cylinder 62, making it easier to scoop up. The screen 11 of the circular net cylinder 62 immersed in the fiber slurry 41 is slightly scooped at the part immersed in the fiber slurry 61, but due to the water pressure and the high viscosity of the fiber slurry 61, it cannot be scooped very much. However, at the screen 11 of the circular net cylinder 62 exposed from the water surface of the fiber slurry 61, since the water pressure and the high viscosity of the fiber slurry 61 are released, it can be scooped up moderately. At this time, as the moisture falls into the inner space side of the rotating circular net cylinder 62 and is gently dehydrated, a wet belt-shaped tape 2 with a width of 2 to 15 mm is sequentially formed so that the core yarn 3 is arranged near the center in the width W direction in the middle in the thickness H direction (also refer to FIG. 1).

[0075] Since the fiber slurry 61 is in a uniformly dispersed state, the fibers thereof are likely to be entangled with the core yarn 3. As the amount of the papermaking raw material fibers 4 in the core yarn - draining combination vat 63 decreases due to draining, the stirring slurry 41 is diluted and pumped up so as to replenish the same, and is transferred to the core yarn - draining combination vat 63 at a constant amount per unit time, so as to keep the concentration of the fiber slurry 61 that is homogeneously dispersed constant.

[0076] Instead of using rayon as the core yarn for the paper yarn twisted yarn, the material of the core yarn may be a chemical fiber such as cuprammonium rayon and / or a regenerated fiber, or may be a paper yarn twisted yarn made of a synthetic fiber, a semi - synthetic fiber, a natural non - wood fiber, an animal fiber, an inorganic fiber, a carbon fiber, or a blended product of any of them.

[0077] The wet belt - shaped tape 2 on the cylinder screen 62 is peeled off, placed on a feed belt (not shown) driven by a felt couch roll, and fed out, and is transferred to the drying drum 71 of the dryer 70 by the guide roller 72. On the drying drum 71, the wet belt - shaped tape 2 is dried by heating and / or blowing to become a dry belt - shaped tape 2. The obtained belt - shaped tape 2 is peeled off from the drying drum 71 by the guide roller 73, and the belt - shaped tape 2 is wound around the winding roll 81 of the belt - shaped tape winder 80.

[0078] At this time, a series of flows including the feeding of the core yarn 3 from the core yarn feeder 50, the papermaking at the slit 12 on the cylinder screen 62, and the winding at the winding roll 81 of the winder 80 can be set in plural numbers. Especially, the more the number is, the higher the production efficiency is, and the belt - shaped tape 2 can be obtained by papermaking. Practically, up to 54 can be applied at most, but it may be more than that.

[0079] Next, as shown in FIG. 5, using the twisting device 100B, the belt - shaped tape 2 is fed out from the winding roll 81 of the belt - shaped tape winder 80 and twisted by a spinner (not shown), so that a spun paper yarn twisted product 10 is obtained, and it is wound around the bobbin 90.

[0080] By appropriately adjusting the type and material of the raw material filaments of the core yarn and the tape width of the strip tape 2 during papermaking, it is made of paper but has flexibility. By having a core yarn, the entanglement between the core yarn and the papermaking part is sufficiently increased. Since the end of the strip tape 2 is not cut but only drained and gently interrupted, the raw material fibers are not cut, there are no sharp corners, and it can be made into a paper yarn twist 10 with a soft touch, low irritation, and excellent feel.

[0081] Using this paper yarn twist 10, various fabrics are induced (not shown) using a loom or a knitting machine, such as a fabric with the paper yarn twist 10 as the warp (longitudinal yarn) and / or weft (lateral yarn), and a knitted fabric knitted while including the paper yarn twist 10. More specifically, the fabric may have the warp and weft as the paper yarn twist 10, or one of the warp or weft may be the paper yarn twist 10 and the other may be cotton yarn, silk yarn, or chemical fiber yarn.

Example

[0082] Hereinafter, examples to which the present invention is applied and comparative examples to which the present invention is not applied will be described in detail.

[0083] First, a paper yarn twist 10 of a kozo - cupra core yarn was prepared, and a fabric thereof was manufactured as a fabric.

[0084] (Raw material preparation example 1: Preparation of kozo slurry as raw material for Japanese paper) The fallen kozo logs that have been cultivated are cut, steamed in a kettle for about 2 to 3 hours to soften the bark, then the bark is peeled off, the black bark on the surface is removed from this bark to make white bark, and foreign substances, scratches, etc. attached are wiped off with a spatula and removed. After being dried in the sun, it is stored as kozo raw material. This kozo raw material was cut into about 10 mm with an Onouchi - type cutter (manufactured by Onouchi Seiko Co., Ltd.) when in use. To remove impurities and improve the permeability of caustic soda during cooking, the kozo raw material was exposed to water in a flowing water tank for 7 days. After performing a 5 - hour cooking treatment in an aqueous solution with a compound concentration of 50% by weight of granular caustic soda (manufactured by Tosoh Corporation) to dissolve impurities, again, degassing and water exposure were performed in a flowing water tank for 7 days, and then the remaining dust, scars, and bud scars were removed to obtain refined kozo.

[0085] (Example 1 of Preparation of Paper Yarn Twisted Product) To trial-produce 10 paper yarn twisted products of kozo-cupra core yarn, refined kozo obtained in Raw Material Preparation Example 1 and cupra core yarn (manufactured by Asahi Kasei Corporation; 150 denier. 70 bundles of cupra fibers. Average fiber diameter 2.143 μm) as core yarn 3 were used. As shown in Fig. 4, water was added to the refined kozo obtained in Raw Material Preparation Example 1 in a beating tank 23 to a concentration of about 1 to 2% by weight, and the refined kozo fibers were ground and beaten by a beater 20 to obtain a beaten slurry 21. Then, it was transferred to a defibrating tank 33, defibrated by a defibrator 30 to form raw fibers for papermaking to obtain a defibrated slurry 31, and then an adhesive was added to form a defibrated slurry 31. Next, the defibrated slurry 31 was transferred to a storage tank 43, and the raw fibers for papermaking were uniformly stirred by a refiner 40 to form a stirring slurry 41 having a concentration such that the strip 2 or its papermaking part had a desired basis weight. The stirring slurry 41 was pumped up and continuously transferred to a core yarn-sluicing combined vat 63 to form a fiber slurry 61 in which the raw fibers for papermaking were uniformly dispersed. On the other hand, from a core yarn pay-off machine 50, the cupra core yarn 3 was paid out while being tensioned and sent to the core yarn-sluicing combined vat 63 and immersed in the fiber slurry 61. The core yarn 3 was brought into contact with a cylinder screen 62 by a guide roller 65, and the core yarn 3 and the fibers of the fiber slurry 61 were drained in a tape shape on the cylinder screen 60 to obtain a strip tape 2. The wet strip tape 2 was peeled off from the cylinder screen 62, transferred to a drying drum 71 of a dryer 70, dried by heating and / or blowing, and wound around a winding roll 81 of a strip tape winder 80 to prepare a strip tape 2 having a tape width of 4 mm and a thickness of 20 μm. Next, this strip tape 2 was given a Z twist with a twist count T of 500 turns per meter to prepare a paper yarn twisted product 10 made of kozo-cupra core yarn to which the present invention is applied.

[0086] (Example 1 of Fabric Manufacturing) Using a shuttle loom, a plain weave was performed using the paper yarn twisted product 10 made of kozo-cupra core yarn obtained for both the warp and weft to manufacture a fabric of the paper yarn twisted product of kozo-cupra core yarn to which the present invention is applied as a fabric. The basis weight of this fabric was 258.1 g / m 2 It was.

[0087] Next, for comparison, a paper yarn twist without Manila hemp-core yarn was prepared, and a fabric applying the present invention was manufactured therefrom as a fabric.

[0088] (Comparative Example 1 for Preparation of Paper Yarn Twist) A Manila hemp-core yarn-free paper yarn twist outside the application of the present invention was prepared in the same manner as in Example 1 for the preparation of paper yarn twist, except that commercially available Manila hemp Japanese paper was used and cut into 6 mm using a slitter TB-2A type (manufactured by Nishimura Seisakusho Co., Ltd.: trade name) to prepare a tape without a core yarn.

[0089] (Comparative Example 1 for Fabric Manufacture) A fabric of Manila hemp-core yarn-free paper yarn twist outside the application of the present invention was manufactured as a fabric in the same manner as in Example 1 for fabric manufacture, except that the Manila hemp-core yarn-free paper yarn twist was used. The basis weight of this fabric was 260.8 g / m 2 It was.

[0090] (Comparative Example 2 for Fabric Manufacture) A cotton fabric outside the application of the present invention was manufactured as a fabric in the same manner as in Example 1 for fabric manufacture, except that commercially available cotton yarn was used instead of the paper yarn twist of kozo-cupra core yarn. The basis weight of this fabric was 330.5 g / m 2 It was.

[0091] For reference in the comparison, a paper yarn twist according to Patent Document 4 and a paper yarn fabric twisted after being cut into strips of kozo or Manila hemp as in the prior art were prepared as follows.

[0092] (Reference Example 1 for Preparation of Paper Yarn Twist) For comparative reference, in accordance with Patent Document 4, a core yarn was used as the same as in Example 1 of preparation of twisted paper yarn (manufactured by Asahi Kasei Corporation; 150 denier, 70 twisted cupra fibers, average fiber diameter 2.143 μm), and a yarn raw material supply step was performed in which a raw material for Japanese paper to be processed into Japanese paper (using paper mulberry) was supplied as a raw material for yarn in a linear or belt-like form into a recessed portion of a belt of a knitted tape rotating in an approximately V-shape, and the linear or belt-like form supplied into the recessed portion of the belt of the knitted tape was supplied. The method conforms to Patent Document 4 and involves a moisture removal process in which moisture is sucked and removed from a strip-shaped yarn raw material, a fiber entangling process in which both ends of the knitted tape belt are moved up and down after the moisture removal process to entangle the fibers and process them into thin yarns, a yarn twisting process in which twist is added to the thin yarns that have been separated from the knitted tape belt after the fiber entangling process, and a drying process before and after the yarn twisting process, and results in the preparation of a triangular prism-shaped twisted paper yarn with a cross-sectional area of ​​approximately an equilateral triangle and a core yarn in the center.

[0093] (Reference example 2 for preparing twisted paper yarn) For comparative reference, a twisted paper yarn was prepared in the same manner as in twisted paper yarn preparation example 1, except that the core yarn in twisted paper yarn preparation example 1 was not used, and the longitudinal ends of the obtained intermediate strip tape were cut with a cutter to form a strip tape.

[0094] (Reference example 3 for preparing twisted paper yarn) For comparison, a twisted paper yarn was prepared in the same manner as in Comparative Example 1 for preparing twisted paper yarn, except that the longitudinal ends of the intermediate strip tape obtained in Comparative Example 1 for preparing twisted paper yarn were cut with a cutter to form a strip tape.

[0095] The physical properties of the twisted paper yarn with mulberry-cupra core yarn obtained in twisted paper yarn preparation example 1, the twisted paper yarn without Manila hemp core yarn obtained in twisted paper yarn preparation comparative example 1, and the twisted paper yarn obtained in twisted paper yarn preparation reference example 1 were evaluated as follows. The physical properties of the twisted paper yarn obtained in twisted paper yarn preparation reference example 2 and the twisted paper yarn obtained in twisted paper yarn preparation reference example 3 were also evaluated.

[0096] (Evaluation of physical properties of twisted paper yarn 1: Magnified observation using an optical microscope) The paper yarn twisted with mulberry-cupra core yarn obtained in Example 1 of the twisted paper yarn preparation to which the present invention is applied, the paper yarn twisted without Manila hemp core yarn obtained in Comparative Example 1 of the twisted paper yarn preparation to which the present invention is not applied, and the paper yarn twisted with ... The maximum, minimum and average values, as well as the significant differences between twisted paper yarn preparation example 1 and twisted paper yarn preparation reference example 1, are shown in Table 1. Note that significant differences were determined using Student's t-test with p<0.05. For comparison, the twisted paper yarn obtained in twisted paper yarn preparation reference example 2, which is not in accordance with the present invention, and the twisted paper yarn obtained in twisted paper yarn preparation reference example 3 were each magnified and observed using incident light with the same optical microscope. The results are shown in Figure 7.

[0097] [Table 1]

[0098] As is clear from the micrograph in Figure 6-1, twists could be confirmed in the paper yarn twisted without Manila hemp core yarn in Comparative Example 1 for preparation of twisted paper yarn, but twists could not be confirmed in the paper yarn twisted with paper mulberry-cupra core yarn in Example 1 for preparation of twisted paper yarn. This suggests that the paper yarn twist made of kozo-cupra core yarn to which the present invention is applied has its long sides not cut but simply skived and gently interrupted, so that the raw fibers are not cut and do not form sharp edges, and the skived fibers are softly and unevenly interrupted, so that when made into a fabric, it does not feel stiff, tense, or rough to the touch, and is hypoallergenic.

[0099] Furthermore, as is clear from the micrograph in Figure 6-1, in the paper yarn twist of paper mulberry-cupra core yarn in Paper Yarn Twist Preparation Example 1, the paper mulberry fibers get caught on, cling to, and / or wrap around the fibers of the cupra core yarn, directly entangling and integrating with them, whereas in the paper yarn twist of Paper Yarn Twist Preparation Reference Example 1, the fibers of the Japanese paper raw material are loosely mottled and entangled around the core yarn, but are not significantly entangled with or integrated with the fibers of the core yarn, and simply cover them.

[0100] Furthermore, as shown in Table 1, the twisted paper yarn of mulberry-cupra core yarn obtained in Example 1 of twisted paper yarn preparation had a fiber-to-fiber distance of only 89-430 μm (average 172 μm) with a standard deviation of only 63 μm, showing little variation, whereas the twisted paper yarn obtained in Reference Example 1 of twisted paper yarn preparation according to Patent Document 4 had a fiber-to-fiber distance of 76-983 μm (average 332 μm), which was roughly twice as large, with a standard deviation of 205 μm, showing a large variation. There was a significant difference between the two, with p<0.05.

[0101] The details of the difference are not entirely clear, but are presumed to be as follows. In the twisted paper yarn of Reference Example 1 for preparing twisted paper yarn, a tensioned core yarn is placed in the deepest part of the stitch tape (mesh) rotating in a V-shape, and both ends of the stitch tape belt are moved up and down to shake, the yarn raw material is supplied to the stitch tape, and moisture is removed (i.e., it falls straight down) from the linear or belt-like yarn raw material supplied into the recess of the stitch tape belt, forming a belt-like tape. At this time, the core yarn of the stitch tape belt is covered with a slurry-like yarn raw material fiber and immediately dehydrated, so that the raw material fiber no longer has time to firmly entangle with the core yarn, and the fiber slurry is wrapped around the core yarn in a loose and wide gap between fibers and between fibers and core yarn in a fairly sparse and uneven manner, forming a belt-like tape and twisting it. It is presumed that this is because the raw material fiber is unevenly accumulated to wrap around the core yarn, and does not become dense. On the other hand, in the paper yarn twisted material of the mulberry-cupra core yarn obtained in Example 1 of the paper yarn twisted material preparation, the fibers of the fiber slurry 61 begin to get entangled with the core yarn 3 in the batt 63 as they get caught, wrapped around, and wound around it, and are drawn toward the cylindrical mesh cylinder 60. As a result, the fibers of the fiber slurry 61 floating freely around the core yarn 3 get caught, wrapped around, and wound around the filament fibers of the core yarn 3 on the cylindrical mesh cylinder 60, and become even more entangled. The fibers of the fiber slurry 61 are three-dimensionally wrapped around the fibers of the core yarn 3, and are uniformly and fairly densely entangled with the fibers of the core yarn 3 without becoming uneven or sparse between fibers and between fibers and core yarns, and are spun into a tape-like shape, so that the distance between the fibers becomes shorter and the fibers seem to be tightly wrapped around each other.

[0102] Therefore, it is suggested that the paper yarn twisted with paper mulberry-cupra core yarn in paper yarn twisted example 1 has excellent dimensional stability without any change in shape because the paper mulberry fibers are entangled and integrated with the fibers of the cupra core yarn. In fact, as will be described later, this is supported by the fact that the wider the tape width is, the shorter the inter-fiber distance is, compared to the paper yarn twisted with paper mulberry-cupra core yarn obtained in paper yarn twisted example 1.

[0103] Furthermore, as is clear from the micrograph in FIG. 6-2, when measured with incident light using a digital microscope KH-7700 (manufactured by Hirox Corporation; product name), the diameter of the twisted paper yarn with mulberry-cupra core yarn in Paper Yarn Twist Preparation Example 1 was 635-780 μm, with a small deviation, whereas the diameter of the twisted paper yarn without Manila hemp-core yarn in Paper Yarn Twist Preparation Comparative Example 1 was 600-790 μm, with a large deviation.

[0104] Furthermore, as is clear from the micrograph in Figure 7, in the twisted paper yarns prepared by twisting the paper mulberry or Manila hemp strips cut at the longitudinal ends of the twisted paper yarn preparation reference examples 2 and 3, the cut fibers are exposed at the cut surfaces, and the cut surfaces of the fibers create edges that are sharp and prickly, making the texture inferior and likely to cause discomfort due to irritation and hardness.

[0105] (Physical Property Evaluation of Paper Yarn Twisted Yarn 2: Tensile Strength Test) For each of the paper yarn twisted yarn of the kozo - cupra core yarn obtained in Paper Yarn Twisted Yarn Preparation Example 1 and the paper yarn twisted yarn of Manila hemp - without core yarn obtained in Paper Yarn Twisted Yarn Preparation Comparative Example 1, samples cut to a length of 200 mm were prepared. With a gripping interval of 100 mm and n = 10, in accordance with JIS P8113 and JIS P8135, the tensile strength and tensile elongation were measured, and the average values were calculated. The measurement conditions were such that these samples were in their original conditions (dry conditions), and these samples were immersed in purified water for 30 seconds and then the excess water was blotted with blotting paper (wet conditions), and the measurement was carried out. The results are shown in FIG. 8.

[0106] As is clear from FIG. 8(a), the paper yarn twisted yarn of the kozo - cupra core yarn of Paper Yarn Twisted Yarn Preparation Example 1 (hereinafter, may be abbreviated as kozo yarn in the figure) showed a tensile strength approximately twice that of the paper yarn twisted yarn of Manila hemp - without core yarn of Paper Yarn Twisted Yarn Preparation Comparative Example 1 (hereinafter, may be abbreviated as Manila hemp yarn in the figure) both under dry conditions and wet conditions. From this, the paper yarn twisted yarn of Manila hemp - without core yarn of Paper Yarn Twisted Yarn Preparation Comparative Example 1 exhibits tensile strength only at the papermaking part because there is no core yarn, while the paper yarn twisted yarn of the kozo - cupra core yarn of Paper Yarn Twisted Yarn Preparation Example 1 is inferred to exhibit strong tensile strength especially at the core yarn part because the core yarn part and the papermaking part are intertwined and inseparable and are integrated. This suggests that the paper yarn twisted yarn of the kozo - cupra core yarn to which the present invention is applied is difficult to break even when pulled by the core yarn, and that there is no shape change due to the displacement between the core yarn part and the fibers of the papermaking part and it has excellent dimensional stability.

[0107] On the other hand, as is clear from FIG. 8(b), the paper yarn twisted yarn of Manila hemp - without core yarn of Paper Yarn Twisted Yarn Preparation Comparative Example 1 did not elongate under dry conditions as normal paper, but elongated about 4 times under wet conditions, while the paper yarn twisted yarn of the kozo - cupra core yarn of Paper Yarn Twisted Yarn Preparation Example 1 had a relatively suppressed elongation rate both under dry conditions and wet conditions. This suggests that the paper yarn twist of the kozo-cupola core yarn to which the present invention is applied is difficult to stretch even under wet conditions due to the core yarn, and it is difficult for the fabric to lose its shape or stretch even when washed as a fabric.

[0108] The physical properties of the fabric of the paper yarn twist of the kozo-cupola core yarn obtained in Fabric Manufacturing Example 1, the fabric of the paper yarn twist without a core yarn of Manila hemp obtained in Fabric Manufacturing Comparative Example 1, and the fabric of cotton yarn obtained in Fabric Manufacturing Comparative Example 2 were evaluated as follows.

[0109] (Fabric Physical Property Evaluation 1: Appearance Evaluation) The appearances of the fabric of the paper yarn twist of the kozo-cupola core yarn in Fabric Manufacturing Example 1, the fabric of the paper yarn twist without a core yarn of Manila hemp in Fabric Manufacturing Comparative Example 1, and the cotton fabric in Fabric Manufacturing Comparative Example 2 were observed and evaluated. The photograph is shown in FIG. 9. As is clear from FIG. 9, all the fabrics were extremely beautiful in appearance, and it was difficult to distinguish between them.

[0110] (Fabric Physical Property Evaluation 2: Air Permeability Test) For the fabric of the paper yarn twist of the kozo-cupola core yarn in Fabric Manufacturing Example 1 (hereinafter, may be abbreviated as kozo yarn fabric in the figure), the fabric of the paper yarn twist without a core yarn of Manila hemp in Fabric Manufacturing Comparative Example 1 (hereinafter, may be abbreviated as Manila hemp fabric in the figure), and the cotton fabric in Fabric Manufacturing Comparative Example 2 (hereinafter, may be abbreviated as cotton yarn fabric in the figure), the air permeability was measured by the JIS L1096 A method (Frazier method). For the measurement, a Frazier air permeability tester was used and measured at n = 3. The air permeability is the amount of air passing through per 1 cm 2 per second (ml), and the average was obtained. It is converted to 1 atmospheric pressure and a temperature of 20 ° C, and the larger the numerical value, the better the air permeability. The results are shown in FIG. 10. As is clear from FIG. 10, the fabric of the paper yarn twist of the kozo-cupola core yarn in Fabric Manufacturing Example 1 and the fabric of the paper yarn twist without a core yarn of Manila hemp in Fabric Manufacturing Comparative Example 1 were about 3.5 times more excellent in air permeability than the cotton fabric in Fabric Manufacturing Comparative Example 2. From this, it is suggested that when made into clothing, heat is released so as not to be trapped, sweat is easily vaporized and escaped, and the wearing comfort is good.

[0111] (Physical Property Evaluation 3 of Fabric: Stiffness Test) For the fabric of the paper yarn twist of the kozo - cupra core yarn of Fabric Production Example 1, the fabric of the paper yarn twist of Manila hemp without a core yarn of Fabric Production Comparative Example 1, and the cotton fabric of Fabric Production Comparative Example 2, the stiffness in the warp direction (lengthwise yarn: warp direction) and the weft direction (crosswise yarn: weft direction) was measured by the JIS L1096 handle - ometer method. For the measurement, a handle - ometer (manufactured by Kumagai Riki Kogyo Co., Ltd.: trade name) was used, and the measurement was carried out with n = 3. The stiffness is the average value, and the smaller the numerical value, the softer it indicates. The results are shown in Fig. 11. As is clear from Fig. 11, for both the fabric of the paper yarn twist of the kozo - cupra core yarn of Fabric Production Example 1 and the fabric of the paper yarn twist of Manila hemp without a core yarn of Fabric Production Comparative Example 1, the stiffness in the weft direction was extremely high, exceeding the measurement upper limit, while for the cotton fabric of Fabric Production Comparative Example 2, the stiffness in the weft direction was relatively high. However, the fabric of the paper yarn twist of Manila hemp without a core yarn of Fabric Production Comparative Example 1 suggests that since the strip - shaped tape itself without the Manila hemp - core yarn is stiff, the twisted paper yarn and its fabric also become stiff. On the other hand, the fabric of the paper yarn twist of the kozo - cupra core yarn of Fabric Production Example 1 was soft because the core yarn was soft and the kozo fibers were intertwined with an appropriate space.

[0112] (Physical Property Evaluation 4 of Fabric: Drapeability Test) For the fabric of the paper yarn twist of the kozo - cupra core yarn of Fabric Production Example 1, the fabric of the paper yarn twist of Manila hemp without a core yarn of Fabric Production Comparative Example 1, and the cotton fabric of Fabric Production Comparative Example 2, the drapeability of the fabric was measured by measuring the JIS 1096 drape coefficient. For the measurement, a drape tester was used, and the measurement was carried out with n = 2. The drapeability measures the slack of the fabric (i.e., cloth) that can be formed naturally, and the drape coefficient (unitless) is obtained as the average value, and the smaller the numerical value, the softer it is. The results are shown in Fig. 12. As is clear from Fig. 12, the fabric of the paper yarn twist of the kozo-cupola core yarn in Fabric Manufacturing Example 1 and the fabric of the paper yarn twist of Manila hemp without a core yarn in Fabric Manufacturing Comparative Example 1 were shown to be harder and less likely to slack than the cotton fabric in Fabric Manufacturing Comparative Example 2. This suggests that the fabric of the paper yarn twist of the kozo-cupola core yarn has a certain degree of softness and has the properties of a cloth such as cotton fabric, while also having the property of paper that it is easy to maintain its shape.

[0113] (Physical Property Evaluation of Fabric 5: Water Absorbency Test) For the fabric of the paper yarn twist of the kozo-cupola core yarn in Fabric Manufacturing Example 1, the fabric of the paper yarn twist of Manila hemp without a core yarn in Fabric Manufacturing Comparative Example 1, and the cotton fabric in Fabric Manufacturing Comparative Example 2, the absorbency of the fabric was measured by measuring the water absorption amount according to JIS 1912. The absorbency was obtained as an average with n = 5, and the larger the numerical value, the more water was absorbed. The results are shown in Fig. 13. As is clear from Fig. 13, the fabric of the paper yarn twist of the kozo-cupola core yarn in Fabric Manufacturing Example 1 and the fabric of the paper yarn twist of Manila hemp without a core yarn in Fabric Manufacturing Comparative Example 1 had higher absorption capacity than the cotton fabric in Fabric Manufacturing Comparative Example 2. This suggests that the fabric of the paper yarn twist of Manila hemp without a core yarn is superior in water absorbency to commonly used cotton fabrics such as towel fabrics, and is suitable for daily necessities such as bath towels and sports towels, and various clothing such as sports clothing.

[0114] (Physical Property Evaluation of Fabric 6: Drying Degree Test) For the fabric of the paper yarn twist of the kozo-cupola core yarn in Fabric Manufacturing Example 1, the fabric of the paper yarn twist of Manila hemp without a core yarn in Fabric Manufacturing Comparative Example 1, and the cotton fabric in Fabric Manufacturing Comparative Example 2, the drying degree was measured as follows. Samples obtained by cutting each fabric into 5 cm squares were prepared, immersed in purified water for 1 minute and then pulled out, and measured with a halogen moisture meter set at 45°C as the moisture evaporation rate (moisture content) after 30 minutes. The larger the drying degree, the easier it is to dry. The results are shown in Fig. 14. As is clear from FIG. 14, the fabric of the paper yarn twist of the kozo-cupola core yarn of Fabric Manufacturing Example 1 and the cotton fabric of Fabric Manufacturing Comparative Example 2 were easier to dry than the fabric of the paper yarn twist without a core yarn of Manila hemp of Fabric Manufacturing Comparative Example 1. This indicates that the fabric of the paper yarn twist of the kozo-cupola core yarn of Fabric Manufacturing Example 1 is superior in water absorbency to cotton fabrics and has drying properties equal to or better than those of cotton fabrics. Therefore, it is suitable for daily necessities such as bath towels and sports towels, and various clothing such as sports clothing. It is suggested that it is easy to absorb sweat, easy to evaporate moisture, and has a smooth texture.

[0115] (Physical Property Evaluation of Fabric 7: Moisture Absorption and Humidity Test) For the fabric of the paper yarn twist of the kozo-cupola core yarn of Fabric Manufacturing Example 1, the fabric of the paper yarn twist without a core yarn of Manila hemp of Fabric Manufacturing Comparative Example 1, and the cotton fabric of Fabric Manufacturing Comparative Example 2, the moisture absorption and humidity were measured as follows. Samples obtained by cutting each fabric into a 10 cm square were prepared and placed on a stainless steel petri dish. They were left in a thermo-hygrostat adjusted to a temperature of 30°C and a humidity of 90 RH%, and the weight was measured every 30 minutes for up to 3 hours. The results are shown in FIG. 15. As is clear from FIG. 15, it was found that none of them changed much in weight even under high temperature and high humidity, indicating that they are hardly affected by moisture. From this, it is suggested that the fabric of the paper yarn twist of the kozo-cupola core yarn of Fabric Manufacturing Example 1 is excellent in water absorbency and drying properties and is hardly affected by humidity. It is easy to absorb sweat, easy to evaporate moisture, hardly affected by humidity, and has a smooth texture.

[0116] In order to evaluate the objective ease of use, comfort, texture, etc. of the fabric of the paper yarn twist of the kozo-cupola core yarn obtained in Fabric Manufacturing Example 1 and the fabric of the paper yarn twist without a core yarn of Manila hemp obtained in Fabric Manufacturing Comparative Example 1, a sensory evaluation was conducted as follows.

[0117] (Sensory Evaluation of Fabric 1) A sensory evaluation of touch was conducted on 42 randomly selected adult men and women (2 aged in their 20s, 6 in their 30s, 14 in their 40s, 14 in their 50s, and 6 in their 60s). For the sensory evaluation, a fabric of a paper yarn twist of a kozo - cupra core yarn of Fabrication Example 1 and a fabric of a paper yarn twist of Manila hemp - without core yarn of Comparative Fabrication Example 1 were placed on a test bench. Under illumination by a fluorescent lamp, without setting a time limit for touching with eyes open, at room temperature of 25°C, for 8 items including softness, weight, warmth, smoothness, moist feeling, formality, touch, and like - dislike, in order to conduct the sensory evaluation objectively and fairly, as the evaluation criteria, on a 5 - point SD method where "very good" is 5 points, "somewhat good" is 4 points, "neither good nor bad" is 3 points, "somewhat bad" is 2 points, and "very bad" is 1 point, the average value is obtained for each age group from the 20s to the 60s. The results of the fabric of the paper yarn twist of the kozo - cupra core yarn of Fabrication Example 1 are shown in Fig. 16(a), and the results of the fabric of the paper yarn twist of Manila hemp - without core yarn of Comparative Fabrication Example 1 are shown in Fig. 16(b).

[0118] As is clear from Figs. 16(a) and (b), the fabric of the paper yarn twist of the kozo - cupra core yarn of Fabrication Example 1 to which the present invention is applied, when compared with the fabric of the paper yarn twist of Manila hemp - without core yarn of Comparative Fabrication Example 1 to which the present invention is not applied, has higher softness, a lighter feeling especially in the younger age groups, is excellent in smoothness, gives a moist feeling, has a generally good touch, has no like - dislike regardless of the age group, and overall obtains excellent sensory evaluation results.

[0119] (Paper Yarn Twist Preparation Example 2) A kozo - PET core yarn paper yarn twist 10 was produced in the same manner as in Paper Yarn Twist Preparation Example 1, except that a core yarn 3 made of polyethylene terephthalate (PET) (produced in Indonesia; 150 denier. 48 PET fibers twisted. Average fiber diameter 3.125μm) was used. It was observed under magnification with a multi - purpose optical microscope DM 4B / DFC450 (manufactured by Leica Microsystems GmbH; trade name) under epi - illumination. The results are shown in Fig. 17(a).

[0120] (Paper Yarn Twist Preparation Example 3) A kozo-rayon core yarn paper yarn twist 10 was manufactured in the same manner as in Paper Yarn Twist Preparation Example 1, except that a rayon core yarn (made in China; 300 denier. 50 rayon fibers twisted. Average fiber diameter 6 μm) was used as the core yarn 3. It was magnified and observed with a multi-purpose optical microscope under epi-illumination in the same manner as in Paper Yarn Twist Preparation Example 2. The results are shown in Fig. 17(b).

[0121] The kozo-PET core yarn paper yarn twists and kozo-rayon core yarn paper yarn twists of Paper Yarn Twist Preparation Examples 2 and 3 had the same appearance as the kozo-cupra core yarn paper yarn twist of Paper Yarn Twist Preparation Example 1. Although not shown, the physical properties of these paper yarn twists were equivalent to those of the kozo-cupra core yarn paper yarn twist of Paper Yarn Twist Preparation Example 1, and furthermore, the physical properties of the fabrics woven from these paper yarn twists were equivalent to those of the fabric of Fabric Manufacturing Example 1.

[0122] (Paper Yarn Twist Preparation Example 4) Three of the paper yarn twists 10 obtained in Paper Yarn Twist Preparation Example 1 were S-twisted to produce a string that was a paper yarn twist 10 with a twist count T of 200 per meter. It was magnified and observed with an optical microscope under epi-illumination. The results are shown in Fig. 18.

[0123] The kozo-cupra core yarn paper yarn twist of Paper Yarn Twist Preparation Example 4 was thickened by twisting three strands. Although not shown, the physical properties of this paper yarn twist were equal to or better than those of the kozo-cupra core yarn paper yarn twist of Paper Yarn Twist Preparation Example 1, and furthermore, the physical properties of the fabric woven from this paper yarn twist were equal to or better than those of the fabric of Fabric Manufacturing Example 1.

[0124] (Paper Yarn Twist Preparation Example 5) Striped tapes 2 with tape widths of 4 mm (the same as in Paper Yarn Twist Preparation Example 1), 6 mm, and 8 mm were prepared in Paper Yarn Twist Preparation Example 1, twisted, and paper yarn twists 10 were manufactured. It was magnified and observed with an optical microscope under epi-illumination. The results are shown in Fig. 19. At this time, for the paper yarn twist of the kozo-cupra core yarn obtained in Paper Yarn Twist Preparation Example 5, as shown in Fig. 19, the shortest distance between adjacent fibers at an arbitrary fiber location was defined as the fiber distance, and the average of the fiber distances at multiple locations was determined. The maximum value, minimum value, and average, and the significant differences from Paper Yarn Twist Preparation Example 1 and Paper Yarn Twist Preparation Reference Example 1 are shown in Table 2. Note that for the significant differences, p < 0.05 was considered significant by Student's t-test.

[0125]

Table 2

[0126] (Paper Yarn Twist Preparation Example 6: Weight Ratio Measurement Test 1 of Core Yarn and Kozo Fiber) For the paper yarn twist 10 prepared in Paper Yarn Twist Preparation Example 1, the weight ratio between the papermaking part and the core yarn part was determined. First, a test piece of the paper yarn twist 10 of an appropriate length was left in a standard environment (temperature 23°C, humidity 50% RH) specified in JIS P8111 for 24 hours, and then the initial weight of the test piece of the paper yarn twist 10 was measured using a precision balance with a minimum sensitivity of 0.1 mg. Next, the kozo fibers around the core yarn 3 were carefully peeled off from the test piece of the paper yarn twist 10 to leave only the core yarn 3, left for 12 hours, and in the same way, the weight of the core yarn 3 was measured with a precision balance. The weight of the kozo fibers in the test piece of the paper yarn twist 10 can be calculated approximately by the following arithmetic formula (1).

[0127] ​Kozo fiber weight in the paper yarn twist 10 test pieces = (Initial weight of the paper yarn twist 10 test pieces) - (weight of the core yarn 3) ···(1)

[0128] The results of the weight measurement are as follows and are calculated as follows. (1) Paper yarn twist 10 test pieces (about 1 m) obtained from the strip tape 2 with a tape width of 4 mm The initial weight of the paper yarn twist 10 test pieces was 0.1671 g, and the weight of the core yarn 3 was 0.0757 g. From this, it was calculated that the kozo fiber weight in the paper yarn twist 10 test pieces = 0.1671 - 0.0757 = 0.0914 g. The core yarn weight ratio in this paper yarn twist 10 test pieces was calculated to be 0.0757 / 0.1671 = approximately 45%, and the kozo fiber weight ratio was calculated to be 0.0914 / 0.167 = approximately 55%. (2) Paper yarn twist 10 test pieces (about 1 m) obtained from the strip tape 2 with a tape width of 8 mm The initial weight of the yarn twist 10 test pieces was 0.1791 g, and the weight of the core yarn 3 was 0.0525 g. From this, it was calculated that the kozo fiber weight in the paper yarn twist 10 test pieces = 0.1791 - 0.0525 = 0.1266 g. The core yarn weight ratio in this paper yarn twist 10 test pieces was calculated to be 0.0525 / 0.1791 = approximately 30%, and the kozo fiber weight ratio was calculated to be 0.1266 / 0.1791 = approximately 70%.

[0129] (Paper yarn twist preparation Examples 6-1 and 6-2: Weight ratio measurement tests 2-1 and 2-2 of the core yarn and kozo fiber) Instead of the core yarn 3 in Paper Yarn Twist Preparation Example 1, a rayon core yarn (50 fiber bundles. 40 denier) or a cupra fiber core yarn Benberg (manufactured by Asahi Kasei Corporation; 70 fiber bundles of cotton-derived cellulose fiber. 19 denier) was used as the core yarn 3. A strip tape 2 was prepared in the same manner as in Paper Yarn Twist Preparation Example 1, and then, Paper Yarn Twists 10 of Paper Yarn Twist Preparation Examples 6-1 and 6-2 were manufactured. Regarding the paper yarn twists 10 of Preparation Examples 6-1 and 6-2 of the obtained paper yarn twists, in the same manner as measured in Preparation Example 5 of the paper yarn twists, the initial weight of the paper yarn twist 10 test piece and the weight of the core yarn 3 were measured. (1) Paper yarn twist 10 test piece (about 1 m) of Preparation Example 6-1 of the paper yarn twist The initial weight of the paper yarn twist 10 test piece was 0.1440 g, and the weight of the core yarn 3 was 0.0531 g. From this, the core yarn weight ratio in this paper yarn twist 10 test piece was calculated to be about 40%, and the kozo fiber weight ratio was calculated to be about 60%. (2) Paper yarn twist 10 test piece (about 1 m) of Preparation Example 6-2 of the paper yarn twist The initial weight of the yarn twist 10 test piece was 0.2828 g, and the weight of the core yarn 3 was 0.0614 g. From this, the core yarn weight ratio in this paper yarn twist 10 test piece was calculated to be about 20%, and the kozo fiber weight ratio was calculated to be about 80%.

[0130] From the above, the paper yarn twist to which the present invention is applied, and the fabric using the same, can be easily and simply manufactured with good yield by the manufacturing method using the manufacturing apparatus of the paper yarn twist to which the present invention is applied, and its quality was superior to that of conventional fabrics.

Industrial Applicability

[0131] According to the paper yarn twist of the present invention and the fabric using the same, it is widely used as clothing materials, for example, fabrics for Western-style or Japanese-style clothing, knitted fabrics; clothing, for example, Western-style clothes, sweaters, shirts, gowns, stoles, shawls, underwear, undergarments, sportswear, kimonos; daily necessities, for example, items around the body such as towels and handkerchiefs; decorative fabrics, for example, curtains, notebooks, and decorative fabrics for dolls.

[0132] According to the manufacturing apparatus of the paper yarn twist of the present invention and the manufacturing method of the paper yarn twist using the same, the paper yarn twist can be manufactured simply, easily, with good yield and high quality.

Explanation of Signs

[0133] 2 is a strip tape, 2’ is a smooth surface, 3 is a core yarn, 3a is a single fiber, 3b is a fiber bundle, 3c is a single-twist fiber yarn, 3d is a multi-twist yarn, 3e is a yarn row, 4 is a papermaking raw material fiber, 5 is a long-side end, 10 is a paper yarn twist, 10a is a single paper yarn twist yarn, 10b is a string, 11 is a forming wire, 12 is a slit, 12’ is a slit end, 13 is a papermaking tool, 20 is a beating machine, 21 is a beaten slurry, 22 is a beating roller, 23 is a beating tank, 30 is a fiberizer, 31 is a fiberized slurry, 32 is a fiberizing roller, 33 is a fiberizing tank, 40 is a refiner, 41 is a stirred slurry, 42 is a refiner plate, 43 is a storage tank, 50 is a core yarn pay-off machine, 60 is a strip tape former, 61 is a fiber slurry, 62 is a cylinder screen, 63 is a vat, 64 is a conduit, 65 is a guide roller, 70 is a dryer, 71 is a drying drum, 72 and 73 are guide rollers, 80 is a strip tape winder, 81 is a winding roll, 90 is a bobbin, 100 is a paper yarn twist manufacturing apparatus, 100A is a strip tape manufacturing apparatus, 100B is a twisting apparatus, Φ is the fiber diameter, φ is the fiber diameter, H is the thickness, W is the width, and a-a is the longitudinal direction.

Claims

1. A belt-shaped tape made of paper-making, wherein the raw fibers for papermaking are felted, and the raw fibers for papermaking are entangled with a core yarn that is tensioned and centered, and is an untwisted yarn.

2. The belt-shaped tape made of paper-making according to claim 1, wherein the raw fibers for papermaking are entangled while having an average gap of 200 μm or less in the core yarn.

3. The belt-shaped tape according to claim 1 is a twisted paper yarn twist.

4. The paper yarn twist according to claim 3, wherein the long-side end of the belt-shaped tape is not cut off while being felted.

5. The core yarn is a natural fiber, a synthetic fiber derived from chemical synthesis, a fiber derived from recycled raw materials, or a fiber derived from bio-based materials, made of at least one synthetic fiber selected from polyester, polyamide, polyacrylate, polyacrylonitrile, vinylon, polyolefin, polyvinyl chloride, polyvinylidene chloride, and polyurethane; made of at least one semi-synthetic fiber selected from acetate, triacetate, and promix; made of at least one chemical fiber and / or recycled fiber selected from viscose rayon, cuprammonium rayon, polynosic, lyocell, and insolubilized alginic acid fiber; and made of at least one natural non-wood fiber selected from seed hair fibers selected from cotton and kapok, bast fibers selected from ramie, hemp, and kenaf, leaf fibers selected from Manila hemp (abaca) and banana, and other plant fibers selected from bamboo, reed, papyrus, and rush; made of at least one animal fiber selected from wool, cashmere, silk, and camel hair; made of at least one inorganic fiber selected from glass fiber, alumina fiber, and metal fiber (stainless steel or copper); made of carbon fiber; or a blended product thereof The paper yarn twist according to claim 3, characterized in that it is.

6. The core yarn is an untwisted single fiber; the single fiber is a single-twist fiber yarn twisted, a fiber bundle formed by bundling a plurality of fibers, a single-twist fiber yarn twisted from a plurality of the single-twist fiber yarns or the fiber bundle, or a multi-twist yarn twisted from a plurality of single-twist fiber yarns; and the paper yarn twist according to claim 3, characterized in that it is any one of a yarn row in which a plurality of any of them are arranged.

7. The paper yarn twist product according to claim 6, wherein the core yarn is a single core yarn and is disposed at the center of the strip-shaped tape, or the core yarn is a plurality of core yarns and is disposed such that their central axes are at the center of the strip-shaped tape.

8. The paper yarn twist product according to claim 3, wherein the core yarn has a fineness of 75 to 600 denier.

9. The paper yarn twist product according to claim 3, wherein the strip-shaped tape has a width of 3 to 15 mm.

10. A single paper yarn twist product yarn in which a single strip-shaped tape is twisted; or a string in which a plurality of the single paper yarn twist product yarns are twisted together, a rope in which a plurality of the strings are twisted together, a cord in which a plurality of the ropes are twisted together, and a large cord in which any one of the single paper yarn twist product yarns, the string, the rope, and the cord is twisted. The paper yarn twist product according to claim 3, which is a selected composite paper yarn twist product yarn.

11. The paper yarn twist product according to claim 10, wherein the single paper yarn twist product yarn is S-twisted or Z-twisted, or the composite paper yarn twist product yarn is any combination selected from S-twisted, Z-twisted, and double-yarn twisted.

12. The raw material fiber for papermaking is a natural-derived fiber or a recycled material fiber, at least any one wood fiber selected from broad-leaved trees such as beech, maple, oak, paulownia, birch, and / or elm, and coniferous trees such as cedar, pine, fir, cypress, and / or hemlock; at least any one herbaceous bast fiber selected from kozo, mitsumata, ganpi, mulberry, hemp, flax, ramie, kenaf, jute, and Philippine abaca (sarago); at least any one leaf fiber selected from Manila hemp (abaca), sisal hemp, banana, pineapple, and banana; at least any one other plant fiber selected from bamboo, rice straw, wheat straw, bagasse, esparto, reed, papyrus, and rush; at least any one seed hair fiber selected from cotton, linter, kapok, coconut, and palm; at least any one animal fiber selected from wool, cashmere, silk, camel hair, and feather; pulp fibers selected from wood pulp and herb pulp; powder-containing pulp fibers in which inorganic powder and / or organic powder is blended or incorporated into the pulp fibers; recycled fibers selected from the material recycled materials of any of the above fibers and waste paper pulp made from waste paper The paper yarn twist product according to claim 3, characterized in that it is at least any one of the fibers selected from

13. A slack twist with a maximum twist number T of 500, or a medium twist with a twist number T exceeding 500 and less than 1000, or a strong twist with a twist number T of at least 1000, characterized in that the paper yarn twist product according to claim 3.

14. A fabric using the paper yarn twist product according to claim 3, characterized in that the paper yarn twist product is either a woven fabric with the paper yarn twist product as the warp and / or weft, or a knitted fabric knitted while including the paper yarn twist product.

15. A product made of paper yarn twist, characterized in that it is selected from the group consisting of fabrics, clothing, footwear, bags and pouches, daily necessities, and decorative fabrics using the fabric according to claim 14.

16. A core yarn pay-off machine, a storage tank for storing the beaten and / or defibrated papermaking raw material fibers in water, a wire mesh for covering the slit of the tape width for draining the papermaking raw material fibers supplied from the storage tank while winding them around the core yarn while arranging the tensioned core yarn closer to the center into a strip-shaped tape made of papermaking, and a dryer for drying while feeding out the strip-shaped tape drained together with the core yarn, characterized in that it is for manufacturing the strip-shaped tape according to claim 1. A strip-shaped tape manufacturing apparatus.

17. A core yarn pay-off machine, a storage tank for storing the beaten and / or defibrated papermaking raw material fibers in water, a wire mesh for covering the slit of the tape width for draining the papermaking raw material fibers supplied from the storage tank while winding them around the core yarn while arranging the tensioned core yarn closer to the center into a strip-shaped tape made of papermaking, a dryer for drying while feeding out the strip-shaped tape drained together with the core yarn, a twisting machine for twisting the strip-shaped tape together with the core yarn into a paper yarn twist product, and a winding machine for winding up the paper yarn twist product, characterized in that it is for manufacturing the paper yarn twist product according to claim 3. A paper yarn twist product manufacturing apparatus.

18. While feeding out the core yarn and arranging the tensioned core yarn closer to the center, draining the papermaking raw material fibers that are being beaten and / or defibrated in water into a strip-shaped tape made of papermaking while winding them around the core yarn, and drying while feeding out the strip-shaped tape drained together with the core yarn, characterized in that it is for manufacturing the strip-shaped tape according to claim 1. A strip-shaped tape manufacturing method.

19. While feeding out the core yarn and arranging the tensioned core yarn closer to the center, beating and / or defibrating the papermaking raw material fibers in water while winding them around the core yarn, draining them into a belt-shaped tape made of paper, drying while feeding out the belt-shaped tape including the core yarn, and then twisting the belt-shaped tape including the core yarn into a paper yarn twist to produce the paper yarn twist according to claim 3. A method for manufacturing a paper yarn twist, characterized by manufacturing the paper yarn twist in this way.

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