JP3558820B2 - Surface change textile - Google Patents

Description

[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a woven fabric rich in surface change, and more specifically, a woven fabric having a random appearance and a soft and dry touch texture by alternately arranging fluid entangled mixed yarns of synthetic fibers having different numbers of entanglements. About.
[0002]
[Prior art]
Synthetic fiber woven fabrics such as polyester woven fabrics generally have a poor surface change and the like and are difficult to obtain a natural appearance. For this reason, it is known to obtain a varied appearance and the like by using synthetic fibers subjected to various processes. For example, a so-called hetero-entangled multi-filament yarn of a plurality of types of multifilament yarns having different heat shrinkage rates is known. It is known to obtain a swelling fabric using shrink-blend yarns.
Thus, when blending filaments having different heat shrinkage rates, a technique of improving the convergence of the filaments by interlacing with a fluid treatment technique (interlace) has been conventionally used. In addition, the fluff between the filaments and the thinness are suppressed, and the handling such as the preparation for weaving can be facilitated.
[0003]
Since the interlaced yarn of the interlaced yarn is moderately regulated in the interlacing interval, when the high shrinkage yarn shrinks, the low shrinkage yarn easily appears as a loop, and a high-quality woven fabric can be manufactured. . However, if the number of entanglements is too large, the filaments are entangled with each other, so that the low-shrinkage yarn cannot be expressed as a loop, and irritability, Kasuri la and the like are generated and the quality of the woven fabric itself, the texture is reduced. The non-interlaced or non-entangled different shrinkage mixed fiber yarns have low shrinkage yarns and high shrinkage yarns are not dispersed among each other. In such a case, a portion having no loop is generated, and if such a portion appears in a large number, a streak called a so-called flash mark becomes conspicuous, and the quality of the fabric is deteriorated. Therefore, it is necessary to impart an appropriate confound.
[0004]
On the other hand, a woven fabric in which warps having different finenesses are alternately arranged to obtain an appearance texture similar to that of natural fibers has been proposed (Japanese Patent Application Laid-Open No. 7-42044), and a woven fabric having a changed warp density has also been proposed. (JP-A-7-279006).
[0005]
[Problems to be solved by the invention]
However, the prior art as described above has the following problems.
That is, although bulkiness can be obtained by merely using the different shrinkage mixed fiber, it is still insufficient in terms of natural appearance. Further, by merely alternately arranging the yarns having different finenesses, it is possible to provide a synthetic fabric with excellent dimensional stability, but it is not possible to provide a new texture.
[0006]
On the other hand, only by changing the warp density, it can be produced only using a special reed, and in addition, the reed cannot be used when the fabric structure and the fineness of the warp are changed, and the productivity is extremely poor. . The invention described in Japanese Patent Application Laid-Open No. 7-279006 is aimed at providing a pattern with a natural feeling, and does not affect the texture of the fabric.
[0007]
The present invention focuses on the fact that the presence / absence of interlacing and the number of interlaces in the hetero-shrink mixed fiber greatly affect the surface state, quality, and texture of the woven fabric. By alternately arranging the fabrics, the aim is to provide a woven fabric that has an unprecedented refined and fine surface change, and has a soft and dry touch feel that is not found in conventional woven fabrics using different shrinkage mixed filament yarns. I do.
[0008]
[Means for Solving the Problems]
The present invention provides a woven fabric in which at least two types of fluid entangled mixed yarns composed of synthetic fiber filaments are alternately arranged in a warp or a weft, wherein the fluid entangled mixed yarns are two types of fiber-forming synthetic fibers. A hetero-shrink mixed yarn composed of laminated conjugate fibers in which the unions are joined at random, and one component of the fluid entangled mixed yarn having an entanglement number of 10 / m or less is used. difference confounding number of yarn is 10 to 50 pieces / m, other than the number of fluid entangling is a surface change fabric characterized by the same thread configuration der Rukoto.
[0009]
BEST MODE FOR CARRYING OUT THE INVENTION
The fluid entangled mixed yarn used in the present invention is composed of synthetic fiber filaments. Examples of the synthetic fiber forming component include polyester, polyamide, and polyolefin. It may be united.
[0010]
Examples of the polyester include homopolyesters such as polyethylene phthalate, polybutylene terephthalate, polyethylene oxybenzoate, polydimethylcyclohexane terephthalate, and polypiparolactone, and copolymerization of isophthalic acid and sulfoisophthalic acid as acid components with these polyester components, and alcohol components. Examples thereof include those obtained by copolymerizing propylene glycol and polymethylene glycol. Examples of the polyamide include nylon 6, nylon 66, nylon 610, nylon 11, nylon 12, a condensate of bis (paraaminocyclohexyl) methane and dodecane diacid, those copolymerized between these polyamide-forming components, and Examples thereof include those obtained by copolymerizing other dicarboxylic acids and diamines. Further, examples of the polyolefin include homopolyolefins such as polyethylene and polypropylene and those containing a small amount of the second component.
[0011]
Furthermore, it is preferable that the fluid entangled mixed yarn used in the present invention is a different shrink mixed yarn. A three-dimensional surface change can be imparted to the woven fabric by using a different shrinkage mixed yarn. In this case, if the heat shrinkage of each component to be mixed is 5% or more, a woven fabric having a fine surface change can be provided, and it is more preferable that the shrinkage difference is 10%. Thus, a woven fabric having a clear surface change can be provided. In general, it is difficult to provide a heat shrinkage difference of 40% or more.
[0012]
Further, when forming a different shrinkage mixed fiber, it is preferable to use a denatured polymer such as a copolymerized polyester as the high shrinkage component. For example, in the case of a polyester-based component, one having an isophthalic acid component in the acid component, 2 2 bis [4- (2-bidoxyethoxy) phenyl] propane is contained in the alcohol component at 2 to 5 mol%, preferably 3 to 4 mol%, and the isophthalic acid component is contained at 6 to 10 mol%, preferably 7 to 7 mol% in the acid component. It is preferable to use an aromatic polyester containing 〜8 mol%.
[0013]
Further, in the present invention, it is preferable to use a specific laminated conjugate fiber described below as a component constituting the fluid entangled mixed fiber, since a texture similar to a natural fiber can be obtained.
That is, such a laminated conjugate fiber refers to a fiber obtained by randomly joining two types of fiber-forming synthetic polymers having mutual affinity and differing in dyeability and dissolution rate with respect to a solvent or a decomposer.
[0014]
This is described in, for example, Japanese Patent Publication No. 2-32366, and is obtained by compound spinning the above two types of fiber-forming polymers so as to have substantially different joining shapes between single yarns of a multifilament. Can be mentioned. When such a laminated conjugate fiber is composed of two types of fiber-forming synthetic polymers having different dyeing properties, the iridescent appearance by dyeing treatment is composed of two types of fiber-forming synthetic polymers having different dissolution rates. By the dissolution treatment, a fluid entangled mixed yarn consisting of a single yarn having a random shape and fineness can be obtained.
[0015]
The fiber-forming synthetic polymer mainly includes polyester and polyamide, and may be a copolymer as long as the spinnability is not impaired in order to provide the above physical properties.
Polyester is a homopolyester such as polyethylene terephthalate, polybutylene terephthalate, polyethylene oxybenzoate, polydimethylcyclohexane terephthalate, or polypiparolactone, or copolymerized with isophthalic acid or sulfoisophthalic acid as a second acid component in these polyester components. And those obtained by copolymerizing propylene glycol or polymethylene glycol as the secondary alcohol component. Polyamide refers to a condensate of nylon 6, nylon 66, nylon 610, nylon 11, nylon 12, bis (paraaminocyclohexyl) methane and dodecane diacid, or a copolymer formed between these polyamide-forming components. And copolymers of other dicarboxylic acids and diamines.
[0016]
The two types of polymers include, among these polymers, those having a difference in dyeability and solubility in a solvent, and a combination of two types of polymers of the same family and having relatively close melting temperatures. Changing the degree of polymerization of the polymer, changing the presence or absence or ratio of copolymerization, modifying the number of terminal groups to make it easy to dye or difficult to dye, or dyeing with dyes of different dyeing groups Combinations of such terminal groups are appropriately selected.
[0017]
Further, different dissolution rates in a solvent means that there is a difference in solubility between organic and inorganic solvents, or in the case of polyester, there is a difference in resistance to a chemical such as caustic soda which acts as a hydrolyzing agent. Usually, the dissolving action on the solvent proceeds at a substantially constant speed until the solvent reaches a saturated state, but in such a constant-speed dissolving progress state, the dissolution rate and the decomposition rate ratio of two types of polymers having a ratio of 2 to 5 are considered. It is preferred to use a combination.
[0018]
For example, examples of the combination of polymers satisfying the above conditions include a combination of polyethylene terephthalate and a so-called cationic dyeable polyester obtained by copolymerizing about 2.5 mol% of sulfoisophthalic acid with a polyethylene terephthalate component.
The laminated conjugate fiber is obtained by joining such polymers at a joining ratio of about 1: 5 to 5: 1, and within such a range, the joining shapes of the single yarn filaments are substantially different from each other. Things. However, there is no substantial change in the joining shape when viewed in the longitudinal direction.
[0019]
In spinning such a laminated composite fiber, a composite spinning method is usually applied.
For example, the polymer can be obtained by spinning by passing the polymer through a static kneading element. Such a static kneading element is passed through a static kneading element having 1 to 4 elements, After passing through the kneading element, spinning can be performed using a spinneret having three or more, preferably six or more spinning holes.
[0020]
The cross-sectional shape of the laminated conjugate fiber can be appropriately selected from a circular cross-section, a tri-octagonal shape, a flat shape, an irregular cross-section such as an alphabet shape such as C, S, T, U, and Y.
[0021]
In the present invention, among the above-described fluid entangled mixed yarns, two types of fluid entangled mixed yarns having different numbers of entanglements are used. That is, the fluid-entangled mixed yarn of the present invention is one in which a plurality of multifilaments are mixed and entangled by an entanglement treatment with a fluid or the like, and the number of such entanglements is 10 to 50 / m, preferably 30 to 40 / m. At least two different types of fluid-entangled mixed yarns are used. When the difference in the number of confounds is 10 pieces / m or less, a remarkable surface change cannot be obtained even if the alternate arrangement described below is performed. Note that the upper limit of the difference in the number of confounds is 50 pieces / m because of the balance between the confounder and the productivity.
More preferably, it is desirable to use, as one of the components, one having a confounding number of 10 / m or less from the viewpoint of providing a contrast of the surface change.
[0022]
What is important in the present invention is to alternately arrange the fluid entangled mixed yarns having different numbers of entanglements as described above.
The arrangement method may be appropriately selected depending on the surface change and texture to be obtained. For example, a woven fabric having a delicate surface change can be obtained by arranging every other (1: 1) or every other (2: 2). Can be obtained, and if the arrangement is 4: 4 or more, a woven fabric having fine stripes can be produced.
[0023]
Further, the arrangement may be a form in which a fixed arrangement is randomly set in addition to a form in which a fixed arrangement is regularly repeated. When a random arrangement is set, the warps may be arranged in a creel using a random number table or the like. In addition, a method of randomly changing the number of warps to be drawn through the reed feathers may be employed.
[0024]
In the woven fabric of the present invention, other yarns may be used, and for example, natural fibers or yarns having various functions such as antibacterial, antistatic, and water absorption may be mixed. In addition, in addition to using as a component of the fluid entangled mixed fiber, the mixing may be performed by folding into an array and interweaving.
[0025]
As a method of manufacturing the woven fabric according to the present invention, for example, two types of fluid entangled mixed yarns having different numbers of entanglement are prepared, and the yarns are alternately drawn through reeds to prepare a warp, and the warp is used. A method of performing weaving can be given. When used for wefts, a method of setting two types of fluid entangled mixed yarns on a loom having a plurality of weft insertion devices and alternately or randomly wefting the yarns may be employed.
[0026]
The structure of the woven fabric according to the present invention is not particularly limited, and various changed structures including plain weave, twill weave, and satin weave can be used. However, in order to emphasize the surface change caused by the arrangement of the warp or the weft, it is preferable to use a structure having many warps such as a warp satin structure.
[0027]
Of course, the fabric of the present invention may be subjected to various post-processing, and when a yarn made of a component having a different heat shrinkage ratio is used, a heat treatment or the like is performed in a relaxed state. It is preferable to exert a latent contraction force and a potential crimp force.
[0028]
【Example】
(Example 1)
A modified polyester obtained by copolymerizing 5% by mole of isophthalic acid and 5% by mole of bisphenol A and a regular polyester consisting only of terephthalic acid and polyethylene glycol were respectively weighed at a ratio of 1.5: 1 with a gear pump, and then mixed in a static mixer. , And wound up at a spinning speed of 1000 m / min to obtain an undrawn yarn of a random latently crimped triangular cross-section conjugate multifilament having a laminated structure in which the joining shapes of the single filaments are substantially different from each other. . Next, two undrawn yarns were prepared, drawn at 3.6 times by a twisting machine, and one was brought into contact with a plate heater heated to 90 ° C. and the other was brought into contact with the plate heater. After arranging the missing items, an average of 30 entangled portions per m was applied by air entanglement treatment, and the yarn was wound into a pirn to obtain a yarn 1 of 100 denier / 72 filaments.
[0029]
Similarly, two undrawn yarns were prepared, and after drawing at 3.6 times, one was brought into contact with the plate heater heated to 90 ° C., and the other was made not into contact with the plate heater. After being mixed, the yarn 2 of 100 denier / 72 filaments having no entangled portion was obtained without performing the air entanglement treatment.
These yarns 1 and 2 are warped so as to be arranged in a 2: 2 warp, respectively, and a plain weave having a warp density of 65 yarns / inch and a weft density of 60 yarns / inch is woven at WJL using yarn 2 as the weft. did.
When this greige machine was processed, there were subtle surface changes in both the warp and weft directions, resulting in a soft, dry-touch woven fabric with a new texture not found in conventional hetero-shrinkage mixed yarns.
[0030]
(Example 2)
Warp is performed so that yarns 1 and 2 obtained in the same manner as in Example 1 are arranged at 4: 4 as warp yarns. WJL uses yarn 2 as the weft yarn and has a warp density of 65 yarns / inch and a weft density of 60 yarns. / Inch plain weave.
When this fabric was processed, it became a soft and dry touch fabric with gentle stripes in the longitudinal direction. It became woven.
[0031]
(Example 3)
Warp is performed so that the yarns 1 and 2 obtained in the same manner as in Example 1 are arranged as warps at a ratio of 6: 6, and in WJL, the yarn 2 is used as the weft, the warp density is 65 / inch, and the weft density is 60. / Inch plain weave.
Processing this fabric resulted in a soft, dry-touch new fabric with clear stripes, yet gentle in the longitudinal direction.
[0032]
(Comparative Example 1)
Only the yarn 1 obtained in the same manner as in Example 1 was warped, and a plain woven fabric having a warp density of 65 yarns / inch and a weft density of 60 yarns / inch was woven at WJL using the yarn 1 as the weft.
Processing this fabric resulted in a soft, dry-touch but rugged surface.
[0033]
(Comparative Example 2)
Only the yarn 2 obtained in the same manner as in Example 1 was warped, and a plain woven fabric having a warp density of 65 yarns / inch and a weft density of 60 yarns / inch was woven in WJL using the yarn 2 as the weft yarn.
When this fabric was processed, the fabric was soft but had no surface change.
[0034]
【The invention's effect】
The present invention is a woven fabric having an unprecedented refinement and fine surface change, and a new texture not found in conventional woven fabrics using different shrinkage mixed filament yarns. Such a woven fabric can be obtained without performing, and its usefulness is clear.

Claims (1)

In a warp or a weft, a woven fabric obtained by alternately arranging at least two types of fluid-entangled mixed yarns composed of synthetic fiber filaments, wherein the fluid-entangled mixed yarns are obtained by randomly mixing two fiber-forming synthetic polymers. A different shrinkage mixed fiber composed of bonded laminated conjugate fibers, in which the number of entanglements is 10 / m or less as one component of the fluid entangled mixed fiber, and two types of the fluid entangled mixed yarn are entangled. A surface-change woven fabric having a number difference of 10 to 50 / m and the same yarn configuration except for the number of fluid entanglements.