JPH1025631A - Roughened sprinkly colored yarn and its production - Google Patents

Abstract

PROBLEM TO BE SOLVED: To produce a roughened and tweedy sprinkly colored yarn, used in a woven or a knitted fabric, good in mellowness and having a woolen contrast and provide a method for producing the sprinkly colored yarn. SOLUTION: This sprinkly colored yarn is produced by feeding two or more staple fiber bundles of different colors to air false twisting type spinning machinery and spinning the fiber bundles or feeding two or more staple fiber bundles of different materials to the air false twisting type spinning machinery, spinning the fiber bundles and coloring the resultant spun yarn. In this case, the respective fiber bundles are separated and present as layers without mutually mixing the fiber bundles in a core which is a core yarn and covered with two or more fibers of different colors helically wound around the fiber bundles from the outside.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a coarse, well-twisted, tweed-like marbled yarn used for woven or knitted fabric and a method for producing the same.

[0002]

2. Description of the Related Art In general, marbled yarns used for woven fabrics and knitted goods (such as weft knits and jerseys) are produced, for example, as follows. That is, first, wool fibers of two or more different colors are mixed and recombed, and then roving is obtained by pre-spinning. Next, the roving yarn is spun by a ring spinning machine and finishing is performed to obtain a marbled yarn. However, the woven or knitted fabric using the marbled yarn obtained by this manufacturing method has too good a color separation, has a uniform color tone, is monotonous, and cannot express casualness. Further, as another method for producing marbled yarn, there is a so-called double roving method in which two or more wool fibers of different colors are ring-spun, and a woven or knitted fabric using the marbled yarn obtained by this production method has a streak. Standing (patterning) occurs, and the sticking out is excessive. Therefore, in conventional worsted spinning, it is impossible to produce a tweed-like coarse and yet well-coarse marbled yarn, and it has been difficult to obtain a woven or knitted fabric expressing casualness.

[0003]

SUMMARY OF THE INVENTION The present invention has been made in view of such circumstances, and has as its object to provide an intermediate frosted yarn obtained by the above two methods. That is, it is an object of the present invention to provide a rough and tweed-like marbled yarn having a fuzzy contrast and a good method of manufacturing the same.

[0004]

SUMMARY OF THE INVENTION An object of the present invention is to provide a marbled yarn obtained by supplying two or more differently-colored staple fiber bundles to an air false twist type spinning device and spinning the same. Each fiber bundle is present as a layer without mixing, and it is separated from the other layer, and is covered with two or more different-color fibers spirally wound from the outside. The staple fiber bundle of the material is supplied to the air false twist type spinning device, spun and colored, and it is a marbled yarn that is colored, and each fiber bundle is a layer without mixing in the core that is the yarn core. This is achieved by a coarse marbled yarn that is separated and covered by two or more different material fibers spirally wound from the outside.

[0005] Another object of the present invention is to supply two or more different-color staple fiber bundles to an air false twist type spinning device and spin the same in a state where the two or more different-color wool fiber bundles are separated. A method for producing a coarse marbled yarn, characterized in that it is supplied from a roller, drawn individually, immediately merged immediately after the front roller, and introduced into a pneumatic yarn winding device and a false twisting device. When supplying the staple fiber bundle of the above different materials to the air false twist type spinning device and spinning, the fiber bundles are separately supplied and supplied from the back roller of the draft device and individually stretched, immediately after the front roller. This is achieved by a method for producing a coarse marbled yarn, wherein the spun yarn is dyed immediately after being merged and introduced into a pneumatic yarn twisting device and a false twist applying device to obtain a spun yarn. .

[0006]

Next, the present invention will be described in detail.
First, one of the marbled yarns of the present invention is obtained by spinning a staple fiber bundle of two or more different colors by an air false twist type spinning device. In the spun yarn thus obtained, each fiber bundle is present in a substantially non-twisted core as a layer without being mixed at random, and is separated into layers. It has a structure in which two or more kinds of different colored fibers wound around the cover are uniformly covered and fastened. In ring spinning, two or more types of staple fiber bundles of different colors are uniformly twisted and the color tone is monotonous, whereas the marbled yarn of the present invention having the above structure expresses a random color tone. It is.

As the staple fiber bundle of the present invention, natural fibers such as wool, cotton, hemp and silk, synthetic fibers such as polyester, acrylic and nylon, regenerated fibers such as rayon, or a mixed fiber thereof are used. Moreover, you may use the fiber which performed various processes. The staple fiber bundle used in the present invention is dyed in various colors according to the purpose by a usual method.

[0008] For example, wool fiber is a fiber for worsted spinning, that is, a maximum fiber length of 140 to 240 mm, and an average fiber length of 5 according to a Barbe method (a Barbe method according to a top analyzer specified in JIS L1083-1971).
Those having a fiber length distribution of 5 mm or more are preferably used. In the case of fibers shorter than this, that is, fibers for spinning and the like, the strength and quality of the obtained yarn may be inferior, and the spinning condition may be poor. In particular, it is preferable to use two different-color slivers having an average fiber length of about 75 mm since a tweed-like rough and sensation of marbling can be favorably obtained.

Before the wool fiber is supplied to the air false twist type spinning apparatus and spun, the wool fiber is preferably subjected to a shrink-proofing process by a chlorinated resin method or the like to remove a part of the scale on the fiber surface. is there. As a specific means of this shrink-proofing process, there is a method proposed by the applicant in Japanese Patent Application Laid-Open No. 63-196767, etc. in addition to Japanese Patent Publication No. 62-38469. An aqueous solution containing active chlorine is sprayed, introduced into a U-tube filled with water, and the wool fiber sliver is immersed deeply in the bottom in a nearly vertical state by capillary action and hydrostatic pressure. A chlorinated resin method in which only the surface is chlorinated to remove scale is extremely effective.

In this case, if the scale on the surface of the wool fiber is completely removed, the surface of the fiber itself becomes extremely smooth, so that it becomes rich in gloss, but it does not reach to give a silky deep gloss. Since there is no scale, it is preferable that the scale remains in a desired ratio.

As the cotton fiber, any cotton species can be used as long as it can be usually used for combing. From the viewpoint of the degree of neps and slabs, the uniformity of the fiber length, and the short fiber content, the combing process can be used. Fried slivers are preferred.

Further, another marbled yarn according to the present invention is obtained by spinning a staple fiber bundle of two or more different materials by an air false twist type spinning device and then dyeing the same. The structure of this marbled yarn also has a structure similar to that of the marbled yarn manufactured from the above-described staple fiber bundle of a different color, and when dyed, the staples of different materials have different colors. The desired marbled yarn is obtained.

The staple fiber bundle used at this time may be any combination of the above-mentioned various fiber materials according to the purpose. For example, when wool fiber is used, the combination with polyester is effective in binding the fiber. It is suitable in terms of dyeability.

Next, the method for producing marbled yarn of the present invention will be described based on an example of an apparatus shown in the drawings. That is,
FIG. 1 is an explanatory view schematically showing an air false twist type spinning device used for producing the marbled yarn according to the present invention, and FIG.
FIG. 2 is an explanatory diagram schematically showing the air false twist type spinning device shown in FIG. In FIGS. 1 and 2, 1 is Kens,
3 is a back roller pair, 5 is a middle roller pair provided with an apron 4, 6 is a front roller pair, 7 is a first air injection nozzle, 8 is a defibration tube, and 9 is a second air The injection nozzle 10 is a pull-out roller, 12 is a sliver guide, and 13 is a separator.

As shown in FIG. 4, the air false twist type spinning apparatus used in the present invention includes a draft device 14 including a back roller pair 3, a middle roller pair 5, and a front roller pair 6, and a first draft device 14. The apparatus includes an air type yarn turning device and a false twist applying device 17 composed of an air injection nozzle 7, a defibrating tube 8, and a second air injection nozzle 9, and further includes a sliver guide in front of the back roller pair 3. 12 and a separator 13 as shown in FIG. The air false twist type spinning apparatus shown in FIG. 1 is configured to spin two fiber bundles. However, when spinning three or more fiber bundles, the sliver guide 12 and the separator 13 are used. May be changed respectively.

The method for producing a marbled yarn of the present invention, in which two staple fiber bundles of different colors are produced using such an apparatus, is carried out, for example, as follows. That is, the staple fiber bundle 2 of one kind and the staple fiber bundle 2 ′ of another color drawn from the can 1 are connected to the draft device 14 via the sliver guide 12 and the separator 13 by the respective fiber bundles 2, 2 ′. The yarns are sequentially passed so as not to overlap, are individually stretched into a fleece shape, and are immediately joined at the outlet of the front roller pair 6 to form a pneumatic yarn turning device and a false twist applying device 1.
7, a single yarn Y having the above-described structure is formed through a pull-out roller 10, and the yarn is wound as a package 11.

The thus obtained marbled yarn of the present invention has a rough and well-tweaked tweed tone, and a woven or knitted fabric using this as a raw yarn expresses casualness. It will be. In the drafting step of the above-mentioned production method, it is important that each staple fiber bundle is separately drawn. If the staple fiber bundles are mixed in the drafting process, this is the same as the case where staples of different colors are mixed before the pre-spinning process.

The method for producing marbled yarn of the present invention, which is produced using a staple fiber bundle of different materials, is carried out, for example, as follows. That is, one staple fiber bundle 2 and a staple fiber bundle 2 ′ made of a material different from the staple fiber bundle 2 are supplied to the draft device 14 via the sliver guide 12 and the separator 13.
2 ′ are sequentially passed so as not to overlap with each other, individually stretched to form a fleece shape, immediately merged at the outlet of the front roller pair 6, introduced into the pneumatic yarn winding device and the false twist applying device 17 and drawn out. A single yarn Y having the above-described structure is formed via a roller 10 and wound into a package 11 to form a spun yarn, which is then dyed.

The above-mentioned dyeing may be performed in the state of a yarn,
It may be performed in a woven or knitted state. The dye used for dyeing may be appropriately selected according to the type of fiber used.

The frosted yarn obtained in this manner has a different color for each material in the yarn, so that the frosted yarn intended for the present invention is obtained. That is, a woven or knitted fabric having a rough and well-tweaked tweed tone and using this as a raw yarn expresses casualness.

Each spun yarn obtained as described above is
In addition to twisting and twisting to form a twin yarn, or twisting and twisting three yarns to form three yarns, plural single yarns may be twisted to form one yarn. These are used as warp or weft or knitting yarns.

When wool fibers or the like containing long fibers are used for the staple fiber bundle, the top roller of the middle roller pair 5 of the draft device 14 is moved toward the top roller of FIG.
It is preferable to employ a hollow roller 15 having a structure as shown in FIG. 1 so that the draft of the fiber bundle can be smoothly carried out.

As shown in FIG. 5, the hollow roller 15 is formed with a small diameter in the central region of the outer peripheral surface, thereby forming a hollow portion 16 having an appropriate depth. In use, the apron 4 rotates in contact with the hollow portion 16. The depth of the hollow portion 16 is appropriately selected according to the number of the supplied fiber bundle, and it is desirable to make the depth deeper for a thick fiber bundle. For example, the weight of the fiber bundle is 0.4 to 2.0 g / 0.4-0.8m in case of m
m is appropriate. The function of the hollow roller 15 is that when the fiber bundle contains fibers longer than the roller gauge set in the draft mechanism (this is inevitably required when wool fibers are used). However, the purpose of the present invention is to perform control so that the draft is not cut during drafting and that the drafts of other fiber groups are not disturbed.

In the pneumatic yarn swirling apparatus, the air injection directions of the first air injection nozzle 7 and the second air injection nozzle 9 are generally opposite to each other. May have the same air injection direction. By making the air jet direction the same direction, the twisting direction of the sweet twist given to the core fiber bundle and the winding direction of the wound fiber become mutually the same, and a product having excellent binding strength and yarn uniformity can be obtained. . In addition, the outer surface has no irregularities, is a rounded yarn, has less fluff, and has improved anti-pilling properties. Further, since the coefficient of kinetic friction is low, the frictional resistance during weaving is low, and the weaving property is excellent. Further, the twisting direction to be the same direction may be the S direction or the Z direction.

[0025]

Next, the present invention will be specifically described with reference to examples. (Example 1) A wool fiber sliver having a black average fiber diameter of 19.7 µ and a unit weight of 0.38 g / m, and a white wool fiber sliver having an average fiber diameter of 19.7 µ and manufactured to 0.38 g produced through a usual process. / M wool fiber sliver and an air false twist type spinning device ("Murata Jet Spinner") shown in FIG.
(Manufactured by Murata Machinery Co., Ltd.) to produce a spun yarn having a count of 48 (the same applies to metric counts and below). The fiber diagram of the wool sliver used had a maximum fiber length of 190 mm and an average fiber length of 75.6 mm. The number of components of the spun yarn in the yarn cross section was 59.

The groove depth of the hollow roller shown in FIG. 5 in the used apparatus was 0.6 mm. The fiber diagram of the used wool fiber has a maximum fiber length of 160 mm and an average fiber length of 62 mm. The roller gauge of the draft device is set to 103 m between the front roller and the middle roller.
m, the distance between the middle roller and the back roller was set to 107 mm, and the total draft was 31.68 times.

(Comparative Example 1) Black average fiber diameter 19.7
a wool fiber sliver with a unit weight of 0.76 g / m;
0.76 g / unit weight of white average fiber diameter 19.7μ /
After mixing with the wool fiber sliver of m, the mixture was passed through a pre-spinning process to obtain a blended sliver having a unit weight of 0.33 g / m.
This mixed sliver is drafted by a ring spinning machine for a total draft of 1.
5.84 times, spindle rotation 11000 RPM, twist number 6
A 48th spun yarn was produced at 30 T / M.

(Comparative Example 2) Brown average fiber diameter 19.7
a wool fiber sliver having a unit weight of μ of 0.38 g / m;
White weight average fiber diameter 19.7μ Unit weight 0.38g /
m wool fiber sliver with a ring spinning machine, using a double roving method, a total draft of 15.84 times, a spindle rotation of 11000 RPM, and a twist of 630 T / M, 48
The spun yarn of the count was manufactured.

Using the frosted yarns of Example 1 and Comparative Examples 1 and 2 obtained as described above, a woven or knitted fabric was produced with a loom or a knitting machine, and the appearance was evaluated. As a result, the woven or knitted fabric of Example 1 was well kneaded, had little color sticking, was rough, and expressed casualness. On the other hand, in the woven or knitted fabric of Comparative Example 1, the color separation was too good, the color tone was uniform and monotonous, and there was no casualness. In the woven or knitted fabric of Comparative Example 2, streaking (patterning) occurred, and excessive sticking out occurred.

(Example 2) A unit weight of 0.38 g / m having an average fiber diameter of 19.7 µ and manufactured through a usual process.
Wool fiber sliver, average fiber diameter of 19.7μ, wool fiber sliver 80% by weight and average fiber diameter of 17.4μ
And a blended sliver having a unit weight of 0.38 g / m and containing 20% by weight of a polyester fiber sliver of No. 4 were passed through an air false twist type spinning apparatus to produce a spun yarn of 48th count (the same applies to metric counts and below). The conditions of the air false twist type spinning device were the same as in Example 1. Next, the spun yarn was dyed black using a chrome dye. As a result, the knitted fabric having a rough and well-tweaked tweed tone and using this as a raw yarn had little color sticking and expressed casualness.

Example 3 A green weight average fiber diameter of 19.7 μ and a unit weight of 0.38, produced through a usual process.
g / m wool fiber sliver and yellow average fiber diameter 1
A wool fiber sliver having a unit weight of 0.38 g / m of 9.7 μm was passed through MJS to produce a bundled spun yarn having a count of 48 (the same applies to metric counts and below). The air injection directions of the two air injection nozzles were set to the same direction, and the winding direction of the obtained spun yarn was set to the S direction. Other conditions were the same as in Example 1. The obtained spun yarn was a coarse, and well-tweed, tweed-like marbled yarn, excellent in binding strength and uniformity of the yarn, and was a spun yarn with little fluff. Also, the knitted fabric obtained using this spun yarn,
There were few colors and the casualness was expressed.

[0032]

As described above, according to the present invention,
In the worsted spinning, it is possible to obtain a rough, well-tweed, tweed-like marbled yarn having a wool-like contrast, which cannot be produced. That is, in the present invention, casualness as obtained by woolen spinning can be expressed by marbled yarn obtained by worsted spinning. Further, in the present invention, since the air false twist type spinning device is used, the production amount is ten times as large as that of the ring spinning machine. Also, by linking the winder to the air false twist type spinning device, a short delivery time (about 2 days) is possible.

[Brief description of the drawings]

FIG. 1 is an explanatory view schematically showing an air false twist type spinning device used for producing a marbled yarn according to the present invention.

FIG. 2 is an explanatory view schematically showing the air false twist type spinning device shown in FIG. 1 when viewed from above.

FIG. 3 is an explanatory view showing the shape of a separator.

FIG. 4 is an explanatory view schematically showing a draft part of the air false twist type spinning device shown in FIG. 1;

FIG. 5 is an explanatory diagram showing the shape of a hollow roller.

[Explanation of symbols]

 Reference Signs List 1 cans 2 roving yarn 3 back roller pair 4 apron 5 middle roller pair 6 front roller pair 7 first air injection nozzle 8 defibration tube 9 second air injection nozzle 10 pull-out roller 11 package 12 sliver guide 13 separator 14 draft mechanism 15 medium Pulling roller 16 Inside punching part 17 Pneumatic yarn turning device and false twist applying device

Claims (4)

[Claims] 1. A marbled yarn obtained by feeding and spinning two or more different-color staple fiber bundles to an air false twist type spinning device,
In the core of the yarn core, each fiber bundle is separated and present as a layer without mixing, and this is covered with two or more different-color fibers spirally wound from the outside, and is a rough marble yarn. 2. A frosted yarn obtained by supplying two or more staple fiber bundles of different materials to an air false twist type spinning device and spinning the same, and each fiber bundle in a core which is a yarn core. Is a coarse marbled yarn that is separated from each other in layers without mixing, and is covered with two or more kinds of different material fibers spirally wound from the outside. 3. In supplying two or more different-color staple fiber bundles to an air false twist type spinning device and spinning, the two or more different-color wool fiber bundles are supplied in a separated state from a back roller of a draft device. A method for producing a coarse marbled yarn, comprising individually drawing, merging immediately after a front roller, and introducing the same into a pneumatic yarn winding device and a false twist applying device. 4. When staple fiber bundles of two or more different materials are supplied to an air false twist type spinning device and spun, the respective fiber bundles are separately supplied from a back roller of a draft device and individually pulled. Stretching, immediately after the front roller, merging immediately, introducing into a pneumatic yarn twisting device and a false twisting device to obtain a spun yarn, and then dyeing the spun yarn to obtain a coarse marbled yarn. Manufacturing method.