JP3129946B2 - Cut pile woven and knitted fabric and method for producing the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a cut pile woven / knitted fabric excellent in napping property suitable for upholstery of interiors and vehicles, and a method for producing the same.

[0002]

2. Description of the Related Art Conventionally, as pile fabrics used for upholstery of interiors and vehicles, pile fabrics by a moquette (double weaving) loom and pile knits by a double Russell knitting machine are well known as high quality products. Have been. That is, the pile yarns of all the pile woven and knitted fabrics are cut neatly by a knife on the machine, and the pile yarns are spun yarns, so that they have relatively low crimp and have a real twist and converge. For example, it is known that a pile having a good pile standing property and an excellent appearance and texture can be obtained as compared with those obtained by raising a pile knitted fabric by tricot or circular knitting.

However, on the other hand, since the pile yarn is a spun yarn, the pile lengths of the constituent filaments are not uniform, so that the cut surface is difficult to align flatly, hair is easily removed, fluff is frequently generated in the manufacturing process, fluff, etc. Therefore, there is also a disadvantage that the unwinding property of the bobbin and the like, the weaving property, the knitting property, etc. are poor,
Improvement was desired. In recent years, the demand for quality has been further upgraded and diversified, and there is a strong desire for a cut pile woven or knitted fabric having a new texture different from the conventional one. However, a large number of spun yarns using various types of raw cotton have been developed in response to this, and there has already been a limit to the leap in quality that meets these requirements with only one process, spinning. Was.

On the other hand, attempts to use a filament yarn as a pile yarn have been studied recently (Japanese Patent Application Laid-Open No.
JP-A-215515, JP-A-6-184862,
Japanese Patent Application Laid-Open No. 6-184863), and a quality higher than that of the conventional spun yarn in terms of bulkiness, yarn dyeability, light weight, cost and the like has not been obtained.

[0005]

SUMMARY OF THE INVENTION The present invention uses a special composite false twisted crimped yarn of a polyester filament instead of a spun yarn as a pile yarn of a cut pile woven or knitted fabric to provide a new-grade appearance that has not been achieved before. And a novel cut pile woven / knitted fabric having excellent handleability and excellent handleability, and a method for producing the same.

[0006]

According to the present invention, a polyester multifilament (A) and a polyester multifilament (B) having a higher orientation than the multifilament (A) are aligned and imparted with confounding. Twist processing
After Itosome the composite false twisted yarn (P) formed by subjecting, which a cut pile woven or knitted fabric used for the pile component, the filaments (A), (B) and composite false twisted yarn (P) is below (1 And (8) are simultaneously satisfied. _{2% ≧ C P ············ (1} ) 4de ≧ (D A + D B) / (N A + N B) ≧ 2de ··· (2) 6% ≧ C A ≧ 2 % (3) 2%> C _B ≧ 0% (4) ε _B ≧ 0.8 _{······· (5) 1 ≧ ε B} > ε A ············ (6) 0.7 ≧ D A / (D A + D B) ≧ 0.4 · (7) 4.5% ≧ S _P (8) where C _P : crimp rate (%) of composite false twisted yarn D _A : low orientation polyester multi filaments a total denier (de) D _B: height total denier oriented polyester multifilament B (de) N _a: the number of filaments N _B of low oriented polyester multifilament a: number of filaments C _a highly oriented polyester multifilament B Percentage crimp of low oriented polyester multifilament A (%) C _B: percentage of crimp highly oriented polyester multifilament B (%) ε _A: cross-sectional deformation of the low-oriented polyester multifilament A epsilon _B: highly oriented polyester multifilament B cross section deformation degree S _P: a boiling water shrinkage of composite false twisted yarn (%).

Further, according to the present invention, the birefringence Δn is 0.03
ポ リ エ ス テ ル 0.07 polyester multifilament A and polyester bifilament B having a birefringence △ n of 0.08 to 0.18 are aligned to give confounding with an air nozzle,
Subsequently, a heat setting temperature of 80 to 140 ° C. and a draw ratio of −1.
03 (relaxation)-1.3 times, number of false twists 32,500 x 0.8
_{/ √ (D A + D B} ) ~1.0 or D / Y1.6~
False twisting under 200 false twisting conditions and 200-250
And then soft-winding the obtained composite false twisted yarn P at a winding density of 0.1 to 0.4 g / cm ² onto cheese, and then dyeing the cheese at a temperature of 120 to 140 ° C. Then, the dyed yarn is untwisted or twisted or twisted, and is applied to a pile loom or a double raschel knitting machine to produce a woven or knitted fabric for cut pile. Further, the fabric is subjected to finishing such as splitting, shearing, and backing. And a method for producing a cut pile woven or knitted fabric. Here, D is the surface speed m / mi of the false twist friction disk.
n and Y are yarn speeds m / min.

[0008]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The present invention will be described below in detail with reference to the accompanying drawings. FIG. 1 is a sectional view showing an example of the cut pile fabric of the present invention. In the figure, P indicates a cut pile yarn, G indicates a ground yarn, and H indicates a backing resin for preventing the cut pile yarn from coming off. Here, the cut pile yarn P
Is a method in which two types of polyester multifilaments A and B having different crimp ratios are aligned and imparted with confounding, and then false twisted.
This is a composite false twisted yarn that has been processed and is dyed by a cheese dyeing method, and it is necessary to satisfy the requirements of the following properties (1) to (8). _{2% ≧ C P ············ (1} ) 4de ≧ (D A + D B) / (N A + N B) ≧ 2de ··· (2) 6% ≧ C A ≧ 2 % (3) 2%> C _B ≧ 0% (4) ε _B ≧ 0.8 _{······· (5) 1 ≧ ε B} > ε A ············ (6) 0.7 ≧ D A / (D A + D B) ≧ 0.4 · (7) 4.5% ≧ S _P (8) where C _P : crimp rate (%) of composite false twisted yarn D _A : low orientation polyester multi filaments a total denier (de) D _B: height total denier oriented polyester multifilament B (de) N _a: the number of filaments N _B of low oriented polyester multifilament a: number of filaments C _a highly oriented polyester multifilament B Percentage crimp of low oriented polyester multifilament A (%) C _B: percentage of crimp highly oriented polyester multifilament B (%) ε _A: cross-sectional deformation of the low-oriented polyester multifilament A epsilon _B: highly oriented polyester multifilament B cross section deformation degree S _P: a boiling water shrinkage of composite false twisted yarn (%).

Hereinafter, each requirement will be described. Requirement (1) The crimping rate of the composite false twisted yarn P according to the present invention is false twisted at an extremely low temperature in order to obtain a napped property similar to or higher than that of a spun yarn.
Further, it is necessary to satisfy the expression (1) by further heat setting the crimp. If it exceeds 2%, the drawbacks are that the pile arrangement is poor and the color depth is poor. In addition, various types of composite false twisting technology have been conventionally performed, and as a typical example, for example, Japanese Patent Publication No. Sho 59-3
Japanese Patent Publication No. 9526 or Japanese Patent Publication No. 61-19733 is well known, but both aim at bulky spun-like yarns. , About 10 to 25%, and also deformed in cross section, and a high-quality pile form as in the present invention cannot be obtained. In particular, since the latter has a large difference in elongation, the difference in the yarn foot of the core-sheath after false twisting is also large, and the cut surface of the pile tends to be uneven, which is not preferable. On the other hand, a case where a composite false twist is performed at a low temperature is disclosed in, for example, JP-A-1-804388.
However, this is a flat yarn with almost no crimp, and the shrinkage rate of boiling water is high. In addition, a difference in dyeing occurs between the inner and outer layers of the cheese. In addition, in the flat yarn, anti-hair fall resistance even worse undesirably. Therefore, also in the present invention, when this crimping ratio is reduced, the single fibers are straightened, the voids between the pile yarns are increased, and when compressed, they are easily deformed, and
Form difference between places that did not receive the deformation increases, the compression marks the remaining tendency indefinitely, i.e., tends to anti hair fall is deteriorated.

Requirement (2) Therefore, in order to prevent this, in the present invention, it is necessary to satisfy the expression (2). That is, the average denier of the single fibers constituting the pile yarn needs to be 2 to 4 denier after false twisting. The thicker the single-fiber denier, the better the hair fall resistance, but on the other hand, the feel becomes coarse and hard, so in the present invention, it is necessary to be 4 denier or less. On the other hand, if it is less than 2 deniers, the hair fall resistance is unfavorably deteriorated. In addition, even if the formula (2) is satisfied, if the thick denier component exceeds 5 denier, tingling may occur when touched, which is not preferable. As described above, the relationship between the soft hand and the hair falling resistance is inversely proportional, and it is difficult to satisfy both characteristics.

Requirements (3) to (4) On the other hand, the present invention contemplates the use of raw yarns having different degrees of birefringence to improve the heat setting conditions during false twisting (3).
Formula (4) was satisfied, and it succeeded in simultaneously improving soft feeling and hair fall resistance, which were difficult to improve conventionally. That is, as shown in the formula (1), the pile yarn as a whole is in an ultra-low crimp state, but in the constituent filament stage, in a mixed state of different crimped cores and sheaths. Taking advantage of flexibility, carry soft texture,
The low crimp-side filament B close to the flat yarn is responsible for the napped properties and the falling resistance. Here, the crimping of the filament A fills the voids between the pile yarns, which are likely to be generated by the filament B, as a sheath in addition to giving a soft feeling, and assists the hair falling resistance from the peripheral side surface of the core filament B. It also has an effect. Furthermore, mixing of different crimped filaments has a more complicated form than in the case of a single yarn, and therefore has the effect of dispersing the direction of light absorption / reflection and making the change in form inconspicuous. It seems to be.

Requirements (5) to (7) In the present invention, it is necessary to further satisfy the expressions (5), (6) and (7) in order to further enhance the above characteristics.
That is, as shown in FIG. 2, a difference is imparted not only to the crimping between the filaments A and B constituting the pile yarn, but also to the degree of cross-sectional deformation. By devising the drawing heat setting temperature and the like, the degree of cross-sectional deformation of the low crimped filament B is made as small as possible to improve the hair falling resistance of the filament B, and at the same time, to increase the flexibility of the filament A. is there. Here, in order to maximize the effects of the above requirements 3 and 4, the filaments A and B constituting the pile yarn need a moderate amount, and the raw yarn denier satisfying the expression (7) is required. It is necessary to select At this time, if the birefringence index Δn is less than 0.03, the cross-sectional deformation becomes excessively large, and flattening is not preferable. In addition, in addition to this, filament A and monofilament denier of B,
When B> A or when a modified cross-section yarn is used, there is a possibility of further improvement.

Requirement (8) In the present invention, it is necessary to soft-wind a composite false twisted yarn P satisfying the above characteristics and dye the yarn by a cheese dyeing method.
Therefore, appropriate bulkiness and low heat shrinkage properties are required so as not to cause spots at the time of cheese dyeing. From this point of view, the crimping ratio and the effective heat setting conditions of the formula (2) are used to obtain (8)
It is necessary to satisfy the low heat shrinkage of the formula. Further, in order to improve the unwinding property after cheese dyeing, it is necessary to provide conjugation by filaments between the filaments A and B. By dyeing a composite false twist yarn that satisfies the above characteristics and then using a double loom or a double raschel knitting machine to create a cut pile woven knit, unprecedented cutting with excellent napping properties and hand feeling A pile woven or knitted fabric can be obtained.

Next, a method for producing a cut pile woven or knitted fabric according to the present invention will be described. SUMMARY OF THE INVENTION An object of the present invention is to provide a cut pile woven or knitted fabric having an appearance and feeling of a new quality that has not been achieved in the past, and having good handleability. For this purpose, it is necessary to provide various types of crimps to the continuous filament and to perform a sufficient heat setting, and the present invention uses a two-heater false twisting method as a yarn manufacturing method. Adopted as. Further, in order to improve the nap quality of the cut pile, it is necessary to have ultra-low crimping characteristics. I made it.

Hereinafter, a detailed example will be described with reference to the accompanying drawings. FIG. 4 is an example of a two-heater type false twist processing apparatus for producing a composite false twist yarn P used for a pile yarn of a cut pile woven or knitted fabric of the present invention. Here, A has a birefringence index Δn of 0.0
A polyester multifilament yarn having a birefringence Δn of 0.08 to 0.18, a so-called DY (polyester multifilament yarn having a birefringence Δn of 0.08 to 0.18) is shown. Drawn yarn) or USY (ultra high speed spun yarn). Further, 1 is a first supply roller, 2 air interlacing Roh nozzle, the second feed roller 3, the first heater 4, 5 false twist device, the first extraction roller 6, the second heater 7, 8 A second take-out roller, 9 is a winding device, P is a composite false twisted yarn for cut pile woven or knitted fabric according to the present invention, and 10 is a cheese wound up.

That is, the polyester multifilaments A and B having different birefringences are aligned and supplied to a two-heater type false twisting device, while relaxing between the first supply roller 1 and the second supply roller 3. Entangling is applied through an air entangling nozzle 2 and then the second feed roller 3
A so-called false twisting process is performed using the first heater 4 and the false twisting device 5 while relaxing or drawing the yarn by −1.03 to 1.3 times between the first take-out roller 6 and the first take-out roller 6. While passing between the second take-off roller 8 and the second take-off roller 8, it is passed through the second heater 7 and reheat set at 200 to 250 ° C., and the obtained composite false twisted yarn P is placed between the second take-out roller 8 and the winding device 9. 0.4g / cm winding density while relaxing
^{It is} to be wound around cheese 10 so as to be ³ or less.

Here, the degree of entangling by the air entangling nozzle is:
The unwinding property of the yarn after cheese dyeing and the bundling property of weaving and knitting that can be smoothed, and the openability of the pile woven fabric or knitted fabric that can be smoothly finished are required. However, for this purpose, relatively weak confounding conditions such that loops and bending do not occur in the confounding part,
For example, using an air entangled nozzle disclosed in Japanese Patent Publication No. 37-1175, etc., in a relaxed state of about 0 to 2%, 1.
A confounding treatment with a compressed air pressure of about 5 to 2.5 kg / cm ² is desirable. That is, air entangling that remains after the splitting of the hair is not preferable. In the false twist processing conditions, the first
The heater temperature is preferably low to obtain an ultra-low crimp, but if the temperature is too low, the heat shrinkage S
_P is likely to be large, and spots and the like are likely to be generated at the time of cheese dyeing in a later process.
0 ° C. is preferred.

The draw ratio is preferably low in order to prevent the cross-sectional deformation of the filament B on the high birefringence index side.
03 (relaxation) to 1.3 times is desirable. The number of false twists is 32,500 × α / √ (D
_A + D _B ), and α is 0.8 to 1.0, preferably 0.8
0.9, D / Y for friction disk type
Is 1.6 to 2.2, preferably 1.7 to 2.0. In order to prevent the cross-sectional deformation of the filament B, it is preferable that α is small. However, when α is too small, the torque of the obtained yarn becomes large, the crimp becomes coarse, and the processing becomes unstable. Is optimal. By selecting such processing conditions, in addition to the above-described false twisting conditions at low temperature, a composite false twist yarn with extremely small cross-sectional deformation of the filament B can be obtained, and the deep internality of the fiber is reduced, so that the deep colorability is improved. The effect of increasing is also obtained.

The heat setting by the second heater is preferably as high as possible, preferably 200 to 250 ° C., in order to obtain ultra-low crimp and low heat shrinkage characteristics.
Further, the relaxation rate is determined by the filament B under the second heater condition.
Is preferably about ± 2% of the thermal shrinkage. This generally gives
Although it is extremely difficult to heat-set the crimp rate uniformly to 2 to 3% or less with the second heater and wind it up normally, this is possible. Here, the appropriate heater temperature is determined by a commercially available false twister, which is a contact type 1.5-2.5 m long heater as the first heater, and a non-contact type 1. heater as the second heater. 0 to 1.5 m long, 40 as yarn speed
It is assumed that the thickness is in the range of 0 to 800 m / min. Therefore, when a special heater is used or processing is performed at an extremely high speed, it is needless to say that this is not the case.

In addition to the above winding conditions, the winding may be followed by soft winding for cheese dyeing afterwards.
However, in each case, the winding density of the soft-wound cheese is 0.4 g to prevent spots when dyeing the cheese.
/ Cm ³ or less.

Next, the soft-wound cheese 10 of the composite false-twisted yarn P thus obtained is dyed with cheese at 120 to 140 ° C., and then untwisted or twisted as it is, or further twin- or triple-twisted Then, the cloth is woven or knitted as a pile yarn together with the ground yarn by a double loom or a double raschel knitting machine, and then the fabric is subjected to finishing processing such as splitting and shearing to adjust the appearance and texture of the pile. Further, the cut pile woven or knitted fabric of the present invention can be obtained by backing the resin on the back surface of the fabric and fixing the pile yarn to the base fabric made of ground yarn.

Here, the above-described crimp rate, cross-sectional deformation degree,
The boiling water shrinkage ratio and the like follow the definition below. The crimp rate sample was made into a skein of about 3,000 de, and the skein length when a heavy load of 0.2 g / de was applied for 1 minute was l ₁ , and then 2 mg.
Treated with boiling water for 20 minutes under a slight load of / de, and then dehydrated and dried. After that, a skein length of l ₂ when a heavy load of 0.2 g / de was again applied for 1 minute, and then 2 mg / kg excluding the load de
The skein length when a minute load is applied for 1 minute is l _3, and the crimp ratio C is calculated by the following formula. C = {(l ₂ −l ₃ ) / l ₂ } × 100 (%) Note that each of the composite false twisted yarn P and the filament A on the low birefringence side and the filament B on the high birefringence side constituting the same. , And the crimp rates calculated using the above formulas are C _P and C, respectively.
_A, and C _B.

[0023] than boiling water shrinkage percentage above skein length, calculates the boiling water shrinkage S by the following equation. For _{S = {(l 1 -l 2} ) / l 1} × 100 (%) composite false twist yarn P, and boiling water shrinkage percentage which is calculated from the above equation and S _P.

Degree of cross-sectional deformation In the cross-section of the filament single filament shown in FIGS. 3A and 3B, the length of the longest diameter is a, and the shortest diameter perpendicular to the longest diameter and the longest is b. Let a be the degree of deformation ε. This is calculated for all the filaments A and B, and the average is defined as ε _A and ε _B.

[0025]

The present invention will be described in more detail with reference to the following examples. Example 1 Using the false twist device shown in FIG. 4, a polyester filament A had a birefringence Δn of 0.05 and a total denier of 16
0de, the number of filaments is 48, the gloss is semi-dal, the cross-sectional shape is POY with a hexagonal cross section, the birefringence Δn is 0.10 for polyester filament B, and the total denier is 75de,
USY with 12 filaments, semi-dull luster, and round cross section is used. The two are drawn together with almost the same tension and supplied from the first supply roller 1, and 2% between the second supply roller 3 4 through the air entangled nozzle 2 in a relaxed state
At a smoothness of 5 pieces / m, a loop is formed, and entanglement with almost no slack is given. Then, at a first heater temperature of 120 ° C. while stretching 1.25 times between the second supply roller 3 and the first take-out roller 6. , Using a friction disk type false twisting device 5 having a D / Y of 2.0, a drawing composite false twisting process is performed at a processing speed (surface speed of the first extraction roller 6) of 400 m / min, and then the first extraction roller 6th and 2nd
The second heater temperature is set at 220 ° C. while relaxing with the take-out roller 8 by 5%, and further soft-winding while relaxing with the take-up device 2 by 2%.
Soft cheese 10 was obtained.

The denier of the obtained composite false twisted yarn P is 199
de, percentage of crimp C _P 1.7% and boiling water shrinkage percentage S _P 3.5
%, Crimp ratio of the filaments A C _A 5.5%, the cross-section deformation degree epsilon _A 0.55, the percentage crimp C _B of the filaments B 0.
8%, cross-sectional deformation degree ε _B is 0.91, average monofilament denier of constituent filament is 3.3 de, ratio of filament A is 68%, and winding density of soft-wound cheese is 0.
It was 32 g / cm ³ .

Next, the soft-wound cheese 10 is dyed at 130 ° C. under high pressure by the cheese dyeing method, twined into 200 T / M and twisted. The fabric was woven with a pile length of 6 mm in accordance with the standard of 20 reeds / inch and a weft density of 46 / inch together with a ground yarn of / rayon blend (65/35), 20th count / double yarn. Here, the unwinding property, twisting property, and weaving property of cheese after yarn dyeing are very good as compared with conventional spun yarn, there is no generation of fly cotton, and the opening during running and weaving is smooth. For,
Even if the speed was increased by about 20%, it could be handled without any problem. Next, the greige of the cut pile fabric is passed through a finishing process, and hair splitting and shearing are repeated twice, and then the back side of the fabric is subjected to an antistatic resin process to obtain a cut pile fabric of the present invention. Was.

The cut pile woven fabric obtained in this manner has a lower crimp ratio and a uniform pile length of the constituent filaments as compared with the conventional one using spun yarn, so that the cut surface is reduced. It was flat, had a soft touch, but had good elasticity and nap, and exhibited a new quality such as an appearance with a deep hue. Also,
The pile yarn is different from the conventional spun yarn in that it has a mixed bulky shape of differently crimped filaments, and has little cross-sectional deformation degree of the filament on the low crimp side, and further, the crimped shape is not a crumpled shape. Because of its spiral form, it has good recovery properties even when subjected to compressive deformation, and has a characteristic that marks are hardly noticeable, and also has excellent so-called hair fall resistance. Furthermore, because of the continuous filament, the entire pile yarn is firmly gripped by the ground yarn of the base fabric as compared with the spun yarn, so that hair removal is extremely small, and finishing and handling of the product can be performed very easily.

Example 2 In the false twisting apparatus shown in FIG. 4, the false twisting apparatus 5 was replaced with a spindle type, and the polyester filament A had a birefringence Δn of 0.05, a total denier of 115 de, and the number of filaments. 36, POY with semi-gloss gloss, round cross-section POY, birefringence Δn for polyester filament B is 0.15, total denier is 75de, number of filaments is 24, semi-gloss gloss is round cross-section DY
By using a spindle type false twisting device, the number of false twists is considerably reduced to 1,900 T / M, and the relaxation rate between the second supply roller 3 and the first take-out roller 6 is reduced. 2%, the relaxation rate between the first take-out roller 6 and the second take-out roller 8 is 3%, and the processing speed (= the surface speed of the first take-out roller 6) is 250 m / m.
A composite false twist was performed under the same conditions as in Example 1 except that the inlay was changed to in.

The denier of the obtained composite false twisted yarn P is 197
de, percentage of crimp C _P 1.3% and boiling water shrinkage percentage S _P 2.1
%, Crimp ratio of the filaments A C _A 4.7%, the cross-section deformation degree epsilon _A 0.78, the percentage crimp C _B of the filaments B 0.
4%, the cross-sectional deformation degree ε _B was 0.96, the average single fiber denier of the constituent filaments was 3.2 de, the ratio of filament A was 61%, and the cheese winding density was 0.35 g / cm ³ . Next, the present composite false twisted yarn P was subjected to cheese dyeing, weaving, and finishing under the same conditions as in Example 1 to obtain a cut pile fabric of the present invention.

The obtained cut pile fabric has the effect of reducing the degree of cross-sectional deformation of the filament, even though it has a low crimp and sharp nap appearance, as compared with the fabric obtained in Example 1. On the other hand, with the effect of good hair falling resistance and the effect of increasing the birefringence difference between filaments A and B, an appearance having a natural taste due to the deep dyeing difference was obtained. In addition, the handleability of the composite false twisted yarn P and the obtained cut pile fabric was much better than the spun yarn as in Example 1.

[0032]

According to the present invention, a new cut pile suitable for use in interiors and chairs of vehicles, etc., which has a new quality appearance and feeling that cannot be obtained with conventional spun yarns, and has excellent handleability. A woven or knitted fabric is obtained.

[Brief description of the drawings]

FIG. 1 is a sectional view of a cut pile fabric according to the present invention.

FIG. 2 is a cross-sectional view of a composite false twist yarn used as a pile yarn of the cut pile fabric of the present invention.

FIG. 3 (a) is a view for explaining how to measure a dimension required for calculating a cross-sectional deformation degree of a filament having a deformed cross section. (B) is a diagram for explaining a method of measuring a dimension required for calculating a cross-sectional deformation degree of a filament having a round cross-section.

FIG. 4 is a front view of a false twisting apparatus for producing a composite false twist yarn used for the pile yarn of the cut pile fabric of the present invention.

[Explanation of symbols]

 A Filament yarn on the low birefringence side B Filament yarn on the high birefringence side P Cut pile yarn G Ground yarn H Backing resin

──────────────────────────────────────────────────続 き Continuation of front page (72) Inventor Tokumitsu Hamajima 1-6-7 Minamihonmachi, Chuo-ku, Osaka-shi, Osaka Teijin Limited (56) References JP-A-5-179527 (JP, A) ( 58) Field surveyed (Int.Cl. ⁷ , DB name) D03D 27/00 D02G 3/04

Claims (2)

(57) [Claims] 1. Polyester multifilament (A)
And, confounding even aligned drawn and highly oriented polyester multi-filament of (B) than the multi-filament (A)
Granted, and then formed by subjecting a false twisting composite false twisted yarn (P)
This is a cut-pile woven or knitted fabric using this as a pile component after yarn dyeing, wherein the filaments (A) and (B) and the composite false twisted yarn (P) simultaneously satisfy the following (1) to (8): A cut pile woven or knitted fabric characterized by the following. _{2% ≧ C P ············ (1} ) 4de ≧ (D A + D B) / (N A + N B) ≧ 2de ··· (2) 6% ≧ C A ≧ 2 % (3) 2%> C _B ≧ 0% (4) ε _B ≧ 0.8 _{······· (5) 1 ≧ ε B} > ε A ············ (6) 0.7 ≧ D A / (D A + D B) ≧ 0.4 · (7) 4.5% ≧ S _P (8) where C _P : crimp rate (%) of composite false twisted yarn D _A : low orientation polyester multi filaments a total denier (de) D _B: height total denier oriented polyester multifilament B (de) N _a: the number of filaments N _B of low oriented polyester multifilament a: number of filaments C _a highly oriented polyester multifilament B Percentage crimp of low oriented polyester multifilament A (%) C _B: percentage of crimp highly oriented polyester multifilament B (%) ε _A: cross-sectional deformation of the low-oriented polyester multifilament A epsilon _B: highly oriented polyester multifilament B cross section deformation degree S _P: a boiling water shrinkage of composite false twisted yarn (%). 2. A polyester multifilament A having a birefringence index Δn of 0.03 to 0.07 and a polyester multifilament B having a birefringence index Δn of 0.08 to 0.18 are aligned and air nozzles are used. Entangling is applied, followed by a heat setting temperature of 80 to 140 ° C. and a draw ratio of −1.03 (relaxation).
1.3-fold, a false twisting number _{32,500 × 0.8 / √ (D A} +
D _B) to 1.0 or subjected to relaxation heat set process in a false twisting and 200 to 250 ° C. at a false twisting conditions D / Y1.6~2.2, then composite false twist yarn P obtained by this
Is soft-wound to cheese at a winding density of 0.1 to 0.4 g / cm ² , then dyed with cheese at a temperature of 120 to 140 ° C., and the dyed yarn is twisted or twisted or twisted to form a pile loom or A method for producing a cut pile woven or knitted fabric, which comprises using a double raschel knitting machine to produce a woven or knitted fabric for cut pile, and further subjecting the cloth to finishing such as cracking, shearing, or backing. Here, D is the surface speed m / min of the false twist friction disk, and Y is the yarn speed m / mi.
n.