TW202332816A - Woven fabric and garment using same - Google Patents

Abstract

The present invention provides a lightweight and thin woven fabric that has a soft feeling suitable for windbreakers, down jackets, and the like, and that has excellent wind-breaking properties. To this end, the present invention provides a woven fabric which comprises a polyamide multi-filament and is of a plain-weave structure, said woven fabric being characterized in that the overall fineness of the multi-filament is not more than 17 dtex for both warp and weft, the single-strand fineness of the multi-filament is not more than 0.7 dtex for warp and/or weft, the fabric breakdown thread strength is not less than 4.5 cN/dtex, and the cover factor is not less than 1,700.

Description

Textiles and clothing materials using them

The invention relates to textiles.

Nylon-based fibers are widely used in lightweight, thin textiles used in industrial materials and sportswear applications. The reason why nylon fibers are widely used is that the breaking strength per decitex is higher than that of polyester. In particular, wind breakers and down jackets are required to be lightweight, thin, and have excellent wind resistance. fabric. In order to prevent breakage of the fabric while having excellent wind resistance and suppressing the penetration of lint or down, fabrics with high textile strength and low air permeability are required. In particular, down jackets in recent years have adopted the method of directly sealing down between the surface layer and the lining layer without using a down bag, due to the lightweight of the product or the abundant expansion of the quilted part. It is required to further improve the anti-lint performance.

In addition, recently, there has been a demand not only for fabrics with low breathability but also for fabrics that are lighter, have a soft touch, and are highly designed or fashionable. However, in order to reduce the weight of the fabric, the thickness of the fabric must be thinned or the fineness of the multifilament constituting the textile must be reduced, which makes it difficult to maintain the tearing strength of the fabric.

In order to meet the requirements, high-density textiles using 11 dtex to 33 dtex grade fibers of nylon are used. In order to increase the tear strength, the textile structure is often set to a tear-resistant (ripstop) structure. The so-called tear-resistant tissue is different from the basic tissue. The warp and weft yarns are arranged in two or more threads. By using the tear-resistant tissue, the stress concentration when the textile is torn can be reduced and the tearing strength of the fabric can be improved. In the prior art, the structure of textiles that met this requirement was limited to tear-resistant structures, which had the following problems.

Tear-resistant weaves are arranged in textiles with yarns that are thicker than the base weave. This causes the fabric to bend and harden to the touch, or create gaps in the textile structure, which causes reduced wind resistance and the emergence of down or cotton wadding. For sewn products using fabrics with this tear-resistant structure, when the fabric is rubbed during washing, the voids in the textile structure expand, which sometimes leads to a decrease in wind resistance or an increase in the protrusion of down or cotton batting. .

In addition, textiles with a tear-resistant structure sometimes lack aesthetics because the reinforcing yarns appear to be in a grid-like or striped shape, and the uses and designs of sewn products are limited.

Patent Document 1 discloses a lightweight thin textile with excellent tear strength. However, the textile structure is an invention that requires the use of a tear-resistant structure in both the Examples and the Comparative Examples. In addition, regarding the softness (bending stiffness based on kinetic energy stiffness (KES)) of the fabrics described in the first invention and the examples, there is a problem that the fabrics are hard to bend.

Example 2 of Patent Document 2 discloses a textile using a plain weave of nylon 22 dtex in the warp and weft, but it does not disclose that it is a textile with a coarse density and a coverage factor of less than 1600. It has windproof performance and run-proof performance as air permeability after washing. Those with sufficient velvet performance. [Prior art documents] [Patent Document]

[Patent Document 1] Japanese Patent Application Publication No. 2005-48298 [Patent Document 2] Japanese Patent Application Laid-Open No. 2013-245423

[Problem to be solved by the invention]

In order to solve various problems related to textiles using the tear-resistant structure of the prior art, the present invention provides a high-density plain weave design using multifilaments of specific fineness and single yarn fineness to provide a fabric suitable for wind protection. A lightweight, thin textile with a soft feel and excellent wind resistance, such as curtains or down jackets. [Means to solve the problem]

The present inventors conducted diligent research in order to solve the above-mentioned problems, and as a result completed the present invention. That is, the present invention includes the following structures.

(1) A textile, a textile having a plain weave structure containing polyamide multifilaments, in which the fineness of the multifilament in both longitude and weft is 17 dtex or less, and the single yarn fineness of the multifilament in at least one of the longitude and weft It is below 0.7 dtex, the decomposed yarn strength of the fabric is above 4.5 cN/dtex, and the coverage coefficient is above 1700.

(2) The textile as described in (1), wherein the tear strength of the textile is 6 N or more in both the warp and weft.

(3) The textile as described in (1) or (2), wherein the initial air permeability and the air permeability after washing are 1 cm ³ /cm ² /s or less.

(4) The textile according to any one of (1) to (3) above, wherein the bending rigidity based on KES is 0.008 gf·cm ² /cm or less.

(5) Clothing material using the textile according to any one of (1) to (4). [Effects of the invention]

According to the present invention, it is possible to provide textiles that have a soft feel, excellent wind resistance, and excellent tear strength.

The textile of the present invention is a textile that can achieve a soft feel while being lightweight, and can suppress down and/or wadding from coming out when the textile contains down. It is particularly suitable for fabrics used in down jackets.

＜Textile Organization＞ As for the textile structure, in order to have excellent wind resistance and prevent lint or down from coming out, fabrics with low air permeability are required, and a plain weave is used. In twill weaves and satin weaves other than plain weaves, the warp yarns have many floating points and there are few yarn intersection points, so it is difficult to suppress air permeability, which is not good from the viewpoint of windproofness and velvet prevention. In addition, the tear-resistant weave made by partially changing the plain weave is an effective weave to increase the tearing strength. However, since yarns with a thicker fineness than the basic weave are arranged in the textile, the fabric bends and becomes hard, or the fabric structure becomes Gaps are created, which can easily lead to a reduction in wind resistance and the drilling out of down or cotton wadding. In addition, for sewn products using fabrics with a tear-resistant structure, when the fabric is rubbed during washing, the voids in the textile structure expand, resulting in a decrease in wind resistance or an increase in the penetration of down or cotton batting. Therefore, the phenomenon becomes more obvious. Not good.

＜Fineness, number of filaments＞ The total fineness of the multifilaments in the textile of the present invention is 17 dtex or less in both warp and weft. If the total fineness exceeds 17 dtex, the textile will tend to bend and harden, which is undesirable. In addition, in order to maintain the tear strength of the textile, it is preferably 5 dtex or more.

In addition, the single yarn fineness of at least one of the multifilament yarns in warp and weft is 0.7 dtex or less. If the single yarn fineness exceeds 0.7 dtex, it is not only difficult to suppress air permeability and air permeability after washing, but also the textile becomes hard to bend, which is undesirable. In addition, in terms of dyeability and workability during spinning, the single yarn fineness is preferably 0.3 dtex or more.

＜Raw yarn strength＞ Regarding the multifilament in the textile of the present invention with a total fineness of 17 dtex or less and a single yarn fineness of 0.7 dtex or less, after multifilament spinning, the strength of the multifilament in the gray fabric is preferably 6 cN or more.

In addition, the strength of the yarn decomposed from the textile of the present invention after scouring, dyeing, etc. of the gray fabric, that is, the fabric decomposed yarn strength is as follows. That is, in the present invention, the decomposed yarn strength of the multifilament yarn used in at least one of the warp yarn and the weft yarn with a single yarn fineness of 0.7 dtex or less needs to be 4.5 cN/dtex or more, but the yarn strength of the warp yarn and the weft yarn is preferably The decomposed yarn strength of the fabrics is above 4.5 cN/dtex.

As the multifilaments used in textiles become finer and the single yarns become finer, the strength of the multifilaments (hereinafter sometimes referred to as raw yarns) tends to decrease, and the tearing strength of textiles also tends to decrease. However, in order to increase the strength of raw yarns, For example, in Patent Document 1 and Patent Document 2, methods that do not contain pigments such as titanium oxide and increase the degree of polymerization (viscosity) of polyamide chips through solid-state polymerization or the like are mainly used. However, with these previous methods, sufficient raw yarn strength cannot be obtained. Therefore, in the present invention, in order to set the decomposed yarn strength of the fabric to 4.5 cN/dtex or more and control the fiber structure densely, for example, the following manufacturing steps are used to obtain the raw yarn strength of 6 cN. /dtex or higher, or polyamide multifilament that suppresses the decrease in strength of the decomposed yarn strength of 4.5 cN/dtex or higher.

＜Raw yarn elongation＞ In addition, the elongation of the multifilament yarns of both the warp yarn and the weft yarn is preferably 30% to 50%. In order to increase the strength of the raw yarn, in industrial polyamide fibers, it is mainly used to set the elongation to less than 30%. However, in the case of polyamide fibers for clothing, the bending rigidity becomes higher as the elongation becomes lower. Therefore, it is preferable to set the elongation to 30% or more, thereby further reducing the bending rigidity of the textile.

＜Polyamide＞ The polyamide constituting the polyamide multifilament used in the present invention is a high molecular weight resin containing a so-called hydrocarbon group connected to a main chain via a amide bond. The polyamide has excellent yarn-making properties and mechanical properties. As specific examples of polyamide, polyhexamethylene (nylon 6) and polyhexamethylene hexamethylene glycol (nylon 66) are mainly preferably mentioned.

In order to achieve high strength, it is preferable not to contain various additives such as matting agents represented by titanium oxide. However, in order to suppress the decrease in strength accompanying the heat history in the dyeing step, a heat-resistant agent or the like may be contained if necessary. In addition, from the viewpoint of raw yarn strength, the degree of polymerization of the polyamide chips is preferably 2.5 to 4.0 based on the relative viscosity of 98% sulfuric acid.

＜Yarn making process＞ The polyamide multifilament of the present invention can be produced using a known melt spinning device as long as it can produce filaments that satisfy the range specified in the present invention. However, in order to increase the strength, it is preferable to use direct stretch spinning. Made using legal manufacturing processes. To illustrate the basic steps, the polyamide resin is melted, the polyamide polymer is metered and transported using a gear pump, and finally extruded from the ejection hole provided in the spinning die to form each filament. By using a cooling device to blow cooling air to each filament ejected from the spinning die, the filament is cooled and solidified to room temperature. Thereafter, an oil agent is applied using an oil supply device, and each filament is bundled to form a multifilament, interlaced using a fluid interlacing nozzle device, and passed through a traction roller and a drawing roller. At this time, stretching is performed according to the ratio of the peripheral speeds of the traction roller and the stretching roller. Furthermore, the polyamide multifilament yarn can be produced by heat-treating the yarn by heating the drawing roller and winding it up using a winding device.

＜Ambient temperature＞ In the manufacturing process using the direct stretch spinning method, it is preferable to actively heat just below the die orifice surface and set the ambient temperature to 250°C to 300°C. Thereby, the polyamide polymer ejected during spinning is less likely to be thermally degraded, and the alignment can be relaxed. High strength can be achieved by easing the orientation caused by slow cooling from the die surface to cooling. More preferably, it is 285°C to 300°C.

＜Uniform cooling: ring cooling device＞ In the process, the cooling device is preferably an annular cooling device that blows cooling rectification air from the outer peripheral side toward the center side, or an annular cooling device that blows cooling rectification air from the center side toward the outer periphery. In addition, from the perspective of increasing the strength of the yarn, the cooling air speed blown out from the cooling air blowing surface is preferably 20.0 (m/min) to 40.0 (m/min) range.

＜Heat setting temperature＞ In the process, the stretching roller is preferably used as a heating roller to perform heat treatment, and the heat treatment temperature is preferably 150°C to 190°C. If the heat treatment temperature is increased, the crystallization of the fiber will be accelerated, so high strength can be achieved. Furthermore, the intensity|strength reduction accompanying the heat history in a dyeing process can be suppressed. Preferably, it is 165°C to 180°C.

＜Coverage coefficient＞ The coverage factor of the textile of the present invention is 1700 or more. As an upper limit, 2000 is preferable. If the coverage factor is less than 1700, the textile becomes softer and thinner, but it is difficult to suppress the air permeability, and the object of the present invention is not satisfied. A coverage factor of 2000 or less is preferable because the air permeability is kept low and the textile is thin and does not bend too much and become hard. In addition, by using yarns with a warp and weft of less than 17 dtex to weave textiles with a coverage factor of less than 2000, the density of the reed or heald frame, which is a component of the loom, will not become too high, causing warp fuzz or warp breakage during weaving. There are very few problems, the quality of the textiles is excellent, and the weft penetration density is also within the corresponding range, so it is better in terms of productivity.

＜Tearing Strength＞ The tearing strength of the textile of the present invention by the pendulum method is preferably 6 N or more in both warp and weft, and more preferably is in the range of 6 N to 15 N. By being 6 N or more, it is preferable in terms of being less likely to cause damage caused by punctures of protrusions when wearing sewn products, and tears caused by weighted concentration or hooking of sewn parts, etc. In addition, since it is a textile with a plain weave structure using polyamide multifilament with a total fineness of warp and weft of 17 dtex or less, the tear strength is as strong as about 15 N.

<Air permeability> The initial air permeability of the textile of the present invention is preferably 1 cc/cm ² /s (cm ³ /cm ² /s) or less, more preferably 0.8 cc/cm ² /s (cm ³ /cm ² / s) or less, and more preferably 0.5 cc/cm ² /s (cm ³ /cm ² /s) or less. By having an air permeability of 1 cc/cm ² /s (cm ³ /cm ² /s) or less, the occurrence of lint or down can be suppressed to a higher degree. In particular, in recent years, down jackets have often adopted the method of directly sealing down between the surface layer and the lining layer without using a down bag. It is best to improve the anti-down performance by suppressing the breathability of the fabric.

The present inventors believe that in terms of practical use of the product, it is also ideal to design a fabric that not only suppresses the fabric air permeability when the sewn product is sold as a new product, that is, the initial air permeability of the fabric, but also suppresses the fabric's initial air permeability by using it at home or in a laundromat. When sewn products are washed and then kneaded, the air permeability is reduced due to the movement and deviation of the intersection points of the textiles, that is, the air permeability after washing is suppressed. In terms of practicality, there are many scenarios where bending force is exerted on the fabric such as repeatedly following a person's movements when wearing the product, or compressing a mountaineering down jacket into a small size and then folding and transporting it. Taking into account the fabric's properties in this scenario, The anti-lint indicator is also an ideal point of view.

The present inventors assumed that down products were washed once a year, and used the air permeability of the fabric after five washes assuming a product life of five years as an index, and set it as "air permeability after washing." The air permeability of the textiles of the present invention after five washings is the same as the initial air permeability, and is preferably 1 cc/cm ² /s (cm ³ /cm ² /s) or less, and more preferably 0.8 cc/cm ² /s ( cm ³ /cm ² /s) or less, more preferably 0.5 cc/cm ² /s (cm ³ /cm ² /s) or less. As mentioned above, the air permeability is 1 cc/cm ² /s (cm ³ /cm ² /s) or less, it can highly inhibit the occurrence of cotton lint or down.

＜Number of running piles＞ The number of velvet threads in the present invention is preferably 50 or less, and more preferably 15 or less. By keeping the number of threads running down to 50 or less, down can be suppressed from coming out when the actual product filled with down is washed, worn, or stored, thereby preventing the product's thermal insulation power from being reduced or down from adhering to other clothing when putting it on or taking off. In addition, the said lint count is the value evaluated by the method measured by the method mentioned later.

<Bending rigidity based on KES> The bending rigidity based on KES of the textile of the present invention is preferably 0.008 gf·cm ² /cm or less (1 gf=0.0098 N=9.8 mN), more preferably 0.006 gf·cm ² /cm ( 0.0558 mN·cm ² /cm) or less. Since the bending rigidity based on KES is 0.008 gf·cm ² /cm (0.0784 mN·cm ² /cm) or less, the bending hardness of the textile becomes smaller, and the expansion of the quilted part when the down is filled into the product becomes Very good shape.

<Balancing Tear Strength, Bending Rigidity, and Air Permeability> As a method of suppressing air permeability while maintaining a soft texture of textiles, a method of making the single yarn fineness of the yarn used is generally known. However, The thinning of the single yarn is associated with the reduction of the strength of the original yarn, and in most cases the tearing strength of the textile is reduced. As a method to improve the tearing strength, it is known that the single yarn fineness of the yarn used is thickened or the weaving density is reduced. However, if the single yarn fineness is increased, the fabric will bend harder, and if the weaving density is lowered, the air permeability will be reduced. Becomes larger and is not suitable for down jacket textiles. Especially in thin textiles using raw yarns of 17 dtex or less as in the present invention, it is difficult to achieve a balance among the three aspects of soft feel, air permeability, and tear strength. In the present invention, as a method to achieve these three aspects at the same time, the yarn strength in textiles is ensured by using the high-strength original yarn, and by setting the number of filaments (single yarn fineness) and coverage coefficient to Within the range described above, it is possible to obtain textiles that have a tear strength of 6.0 N or more that can provide the above-mentioned excellent performance even when actually worn, and have initial air permeability and/or air permeability after washing suppressed to 1.0. cc/cm ² /s (cm ³ /cm ² /s) or less, and the bending rigidity is 0.0080 gf·cm ² /cm or less.

The textiles of the present invention can be suitably used in clothing materials such as windshield curtains, down jackets and other sports clothing materials, as well as tents, sleeping bags, canvases and other materials. [Example]

This will be explained more specifically using examples. However, the present invention is not limited to these examples in any way.

The evaluation and measurement methods used in the examples are as follows.

(1) Total fineness, single yarn fineness [denier] (denier of raw yarn) The fiber sample is wound 400 times on a gauge machine with a frame circumference of 1.125 m at a tension of 1/30 cN × indicated decitex to make a skein. Dry at 105°C for 60 minutes and move to a dryer. Leave to cool for 30 minutes at 20°C and 55RH. Calculate the mass per 10,000 m based on the value obtained by measuring the mass of the skein. In the case of nylon 6, Let the common moisture content be 4.5% and calculate the total fineness of the fiber. Four measurements were made, and the average value was taken as the total fineness. In addition, the value obtained by dividing the obtained total fineness by the number of filaments was defined as the single yarn fineness.

(denier of fabric decomposed yarn) Draw two lines at intervals of 100 cm in the warp or weft direction of the textile, and decompose the warp or weft of the textile within the lines. Next, in order to determine the measurement load, the provisional total fineness is calculated. Apply a load of 2 g to the obtained decomposed yarn, measure the length between two points (L cm), cut it between two points (L cm), and measure its weight (Wg). The provisional total is calculated by the following formula Fineness. Next, a load of 1/10 g/dtex (0.098 cN/dtex) is applied to the temporary total fineness, and the length and weight between two points are measured in the same manner as above, and the total fineness is calculated by the following formula.

Total fineness (textile decomposed yarn) = W/L × 100000 (dtex) In addition, the value obtained by dividing the obtained total fineness by the number of filaments was defined as the single yarn fineness (dtex). The same measurement was repeated five times, and the average value was recorded in the results.

(2) Yarn strength and elongation For raw yarn and fabric decomposed yarn, draw the tensile strength-elongation curve according to the Japanese Industrial Standards (JIS) L1013 (2010) tensile strength and elongation. As the test conditions, the type of testing machine was constant speed elongation, the gripping interval was 50 cm, and the stretching speed was 50 cm/min. In addition, when the tensile strength at the time of cutting is less than the maximum strength, the maximum tensile strength and the elongation at this time are measured. Strength and elongation are determined by the following formulas.

Strength (cN/dtex) = tensile strength when cutting (cN)/denier (dtex) Elongation (%) = elongation when cutting (cm) / gripping distance (cm) × 100 (3) Weaving density The density of textiles is measured according to density measurement method A (JIS method) specified in JIS L1096 (2010) 8.6.1.

(4) Coverage coefficient (CF) The CF of textiles is calculated by the following formula.

CF=Dwp×(Fwp) ^1/2 +Dwt×(Fwt) ^1/2 [In the formula, Dwp represents the warp density of the textile (root/2.54 cm), Dwt represents the weft density of the textile (root/2.54 cm), Fwp and Fwt represents the thickness (dtex) of the warp and weft yarns constituting the textile].

(5)Tearing strength The tear strength of textiles is measured according to the tear strength D method (pendulum method) specified in JIS L1096 (2010) 8.17.4.

(6) Initial air permeability/air permeability after washing The initial air permeability of textiles is measured according to the air permeability method A (Frazir type method) specified in JIS L1096 (2010) 8.26.1.

In addition, regarding the air permeability after washing, the air permeability was measured using the same method after washing five times according to the C4M method specified in the appendix of JIS L1930 (2014), and then hanging and drying.

(7) KES-based bending rigidity (KES bending rigidity) Regarding the bending rigidity of textiles, the KES-FB2 bending characteristic testing machine manufactured by Katotech Co., Ltd. was used. Regarding the test piece, collect at least two points of 20 cm x 20 cm in the width direction, hold the sample on a chuck 1 cm apart, and perform constant velocity curvature in the range of curvature K = -2.5 to +2.5. Pure bending test. Regarding the test direction, let the direction in which the warp yarn bends be the warp, and let the direction in which the weft yarn bend be the weft. The test was conducted three times, and the average value was calculated and used as the KES bending rigidity value in each direction. Furthermore, the average value is set as the KES bending rigidity value.

(8) Number of velvet threads As a hypothetical evaluation of the anti-down running properties of actual products, the number of running down threads is measured based on the down drilling evaluation of textiles specified in GB/T 14272 (2011). Regarding the sample used for the down drill-out evaluation, according to method B of the above-mentioned evaluation method, the sample size is 120 mm × 170 mm (the size of the test bag after sewing (sewing thread: household No. 13)), and the filling amount is 30 g sample for evaluation. Use down with a filling ratio of 90% down/10% feathers and a fill power of 600 or more.

In addition, regarding the down resistance after washing, the textiles were washed five times according to the washing method C4M method specified in the appendix of JIS L1930 (2014). After hanging and drying, samples for down drilling evaluation were prepared and the same method was used. Determine the number of running lint.

[Example 1] Nylon 6 slices, which are polyamides and have a sulfuric acid relative viscosity of 2.8 and do not contain titanium oxide, are melted at 282°C and ejected from the spinning die (round hole). For each filament ejected from the spinning die, steam at 285°C is blown directly below the die orifice surface, and the ambient temperature is set to 285°C. The steam at 18°C is blown from outside to inside at a wind speed of 20 m/min. Annular cooling device with cooling air, and cools and solidifies the filament to room temperature. Thereafter, a spinning oil was applied and each filament was converged to form a multifilament. After interlacing, the drawing roller was stretched at a drawing roller speed of 1700 m/min and heated to 155° C. at a draw ratio of 2.4 times and was wound up. Thus, 11 dtex, 8-filament nylon 6 multifilament is obtained.

Polyamide nylon 6 slices with a sulfuric acid relative viscosity of 3.3 and not containing titanium oxide are melted at 295°C and ejected from the spinning die (round hole). For each filament ejected from the spinning die, steam set to 290°C is blown directly below the die orifice surface, and the ambient temperature is set to 290°C. It is blown from the outside to the inside at a wind speed of 15 m/min for 18 seconds. ℃ cooling air ring cooling device, and the filament is cooled and solidified to room temperature. Thereafter, a spinning oil is applied and each filament is converged to form a multifilament. After interlacing is provided, the drawing roller speed is 2700 m/min, and the drawing roller is heated to 170° C. to draw and wind up at a draw ratio of 1.52 times. Thus, 11 dtex, 24 filament nylon 6 multifilament is obtained.

For a plain fabric in which the obtained 11 dtex, 8-filament nylon 6 multifilament is configured as the warp yarn and the 11 dtex, 24-filament nylon 6 multifilament is configured as the weft yarn, the warp density is 280 in the final finished fabric. /2.54 cm, weft density 240/2.54 cm. The obtained gray fabric is refined and pre-shaped according to conventional methods, and then dyed using a liquid flow dyeing machine and dried. After that, non-fluorine-based resin is used for water-repellent processing and rolling processing. The obtained fabric has a soft hand and is suitable for down jackets. The measurement results are shown in Table 1.

[Example 2] Polyamide nylon 6 slices with a sulfuric acid relative viscosity of 2.8 and no titanium oxide are melted at 295°C and ejected from the spinning die (round hole). For each filament ejected from the spinning die, steam set to 295°C is blown directly below the die orifice surface, and the ambient temperature is set to 295°C. It is blown from the outside to the inside at a wind speed of 20 m/min for 18 seconds. ℃ cooling air ring cooling device, and the filament is cooled and solidified to room temperature. Thereafter, a spinning oil is applied and each filament is converged to form a multifilament. After interlacing is provided, the drawing roller speed is 2500 m/min, and the stretching and winding are performed at a draw ratio of 1.82 times through a drawing roller heated to 170°C. Thus, 15 dtex, 24 filament nylon 6 multifilament is obtained.

For a plain fabric in which the 11 dtex, 8-filament nylon 6 multifilament obtained in Example 1 is configured as the warp yarn and the 15 dtex, 24-filament nylon 6 multifilament is configured as the weft yarn, the warp is woven into the final finished fabric. The density is 288 threads/2.54 cm, and the weft density is 220 threads/2.54 cm. The obtained gray fabric was dyed in the same manner as in Example 1, and the physical properties of the obtained fabric were measured. The measurement results are shown in Table 1.

[Example 3] Polyamide nylon 6 slices with a sulfuric acid relative viscosity of 2.8 and no titanium oxide are melted at 275°C and ejected from the spinning die (round hole). For each filament ejected from the spinning die, steam set to 275°C is blown directly below the die orifice surface, and the ambient temperature is set to 275°C. It is blown from the outside to the inside at a wind speed of 20 m/min for 18 seconds. ℃ cooling air ring cooling device, and the filament is cooled and solidified to room temperature. Thereafter, a spinning oil was applied and each filament was converged to form a multifilament. After interlacing, the drawing roller was drawn at a speed of 2400 m/min and stretched and wound up via a drawing roller heated to 170° C. at a drawing magnification of 1.80 times. Thus, 17 dtex, 24 filament nylon 6 multifilament is obtained.

For a plain fabric in which the 11 dtex, 8 filament nylon 6 multifilament obtained in Example 1 is configured as the warp yarn and the 17 dtex, 24 filament nylon 6 multifilament is configured as the weft yarn, the warp is woven into the final finished fabric. The density is 296 threads/2.54 cm, and the weft density is 226 threads/2.54 cm. The obtained gray fabric was dyed in the same manner as in Example 1, and the physical properties of the obtained fabric were measured. The measurement results are shown in Table 1.

[Example 4] Nylon 6 slices, which are polyamides and have a relative viscosity of sulfuric acid of 2.8 and do not contain titanium oxide, are melted at 282°C and ejected from the spinning die (round hole). For each filament ejected from the spinning die, steam set to 285°C is blown directly below the die orifice surface, and the ambient temperature is set to 285°C. It is blown from the outside to the inside at a wind speed of 20 m/min for 18 seconds. ℃ cooling air ring cooling device, and the filament is cooled and solidified to room temperature. Thereafter, a spinning oil is applied and each filament is converged to form a multifilament. After interlacing is provided, the drawing roller speed is 2400 m/min, and the stretching and winding are performed at a draw ratio of 1.82 times through a drawing roller heated to 170°C. Thus, 13 dtex, 24 filament nylon 6 multifilament is obtained.

For the plain fabric obtained by configuring the obtained 13 dtex, 24 filament nylon 6 multifilament as warp and weft, the final finished fabric was woven into a warp density of 266 threads/2.54 cm and a weft density of 230 threads/2.54 cm. The obtained gray fabric was dyed using the same method as in Example 1, and the physical properties of the fabric were measured. The measurement results are shown in Table 1.

[Comparative Example 1] A plain fabric using the same warp yarns and weft yarns as in Example 1 was woven into the final product fabric to have a warp density of 280 yarns/2.54 cm and a weft density of 220 yarns/2.54 cm. The obtained gray fabric was dyed using the same method as in Example 1, and the physical properties of the fabric were measured. The obtained fabric has a soft feel, but the air permeability after washing exceeds 1.0 cc/cm ² /s (cm ³ /cm ² /s), and the number of lint fibers after washing exceeds the 50 lint count as the standard for passing the test. Down jacket is insufficient. The measurement results are shown in Table 1.

[Comparative example 2] Nylon 6 slices, which are polyamides and have a relative viscosity of sulfuric acid of 2.8 and do not contain titanium oxide, are melted at 265°C and ejected from the spinning die (round hole). For each filament ejected from the spinning die, steam set to 265°C is blown directly below the die orifice surface, and the ambient temperature is set to 265°C. It is blown from the outside to the inside at a wind speed of 15 m/min for 18 seconds. ℃ cooling air ring cooling device, and the filament is cooled and solidified to room temperature. Thereafter, a spinning oil is applied and each filament is converged to form a multifilament. After interlacing, the drawing roller speed is 2800 m/min, and the stretching and winding are performed at a drawing ratio of 1.60 times through a drawing roller heated to 155°C. Thus, 11 dtex, 24 filament nylon 6 multifilament is obtained. For a plain fabric using the same warp yarns as in Example 1 and the 11 dtex, 24 filament nylon 6 multifilament obtained here and configured as weft yarns, the final product fabric was woven into a warp density of 280 threads/2.54 cm and a weft density of 240 threads. /2.54 cm. The obtained gray fabric was dyed using the same method as in Example 1, and the physical properties of the fabric were measured. The tear strength of the fabric in the weft direction is less than 6.0 N, which is not sufficient for a down jacket. The measurement results are shown in Table 1.

[Comparative example 3] For textiles using the same tear-resistant structure of warp yarns and weft yarns as in Example 1, the final finished fabric was woven to a warp density of 291 threads/2.54 cm and a weft density of 236 threads/2.54 cm. The obtained gray fabric was dyed using the same method as in Example 1, and the physical properties of the fabric were measured. The fabric obtained has a stiff, curved feel. The measurement results are shown in Table 1.

[Comparative example 4] Nylon 6 slices, which are polyamides and have a relative viscosity of sulfuric acid of 2.8 and do not contain titanium oxide, are melted at 282°C and ejected from the spinning die (round hole). For each filament ejected from the spinning die, steam set to 285°C is blown directly below the die orifice surface, and the ambient temperature is set to 285°C. It is blown from the outside to the inside at a wind speed of 20 m/min for 18 seconds. ℃ cooling air ring cooling device, and the filament is cooled and solidified to room temperature. Thereafter, a spinning oil is applied and each filament is converged to form a multifilament. After interlacing is provided, the drawing roller speed is 2300 m/min, and the stretching and winding are performed at a draw ratio of 1.95 times through a drawing roller heated to 170°C. Thus, 22 dtex, 20 filament nylon 6 multifilament is obtained.

Nylon 6 slices, which are polyamides and have a relative viscosity of sulfuric acid of 2.8 and do not contain titanium oxide, are melted at 282°C and ejected from the spinning die (round hole). Each filament ejected from the spinning die is blown with steam set to 285°C, the ambient temperature is set to 285°C, and passed through a ring that blows 18°C cooling air from the outside inward at a wind speed of 20 m/min. A cooling device is installed, and the filament is cooled and solidified to room temperature. Thereafter, a spinning oil is applied and each filament is converged to form a multifilament. After interlacing is provided, the drawing roller speed is 2300 m/min, and the stretching and winding are performed at a draw ratio of 1.95 times through a drawing roller heated to 170°C. Thus, 22 dtex, 24 filament nylon 6 multifilament is obtained.

For a textile with a tear-resistant structure in which the obtained 22 dtex, 20-filament nylon 6 multifilament is configured as warp yarn and the 22 dtex, 24-filament nylon 6 multifilament is configured as weft yarn, it is woven into the final finished fabric. The warp density is 205 threads/2.54 cm, and the weft density is 153 threads/2.54 cm. The obtained gray fabric was dyed using the same method as in Example 1, and the physical properties of the fabric were measured. The obtained fabric has a hard and curved feel, the initial/after-wash air permeability exceeds 1.0 cc/cm ² /s (cm ³ /cm ² /s), and the initial/after-wash lint count also exceeds the standard for qualification. The 50 pieces are not enough as a down jacket. The measurement results are shown in the table below.

[Comparative example 5] For a plain fabric using the same warp yarns and weft yarns as in Comparative Example 4, the final product fabric was woven to have a warp density of 204 yarns/2.54 cm and a weft density of 160 yarns/2.54 cm. The obtained gray fabric was dyed using the same method as in Example 1, and the physical properties of the fabric were measured. The fabric obtained has a stiff, curved feel. The measurement results are shown in the table below.

[Comparative example 6] Nylon 6 slices, which are polyamides and have a relative viscosity of sulfuric acid of 2.8 and do not contain titanium oxide, are melted at 282°C and ejected from the spinning die (round hole). For each filament ejected from the spinning die, steam set to 285°C is blown directly below the die orifice surface, and the ambient temperature is set to 285°C. It is blown from the outside to the inside at a wind speed of 20 m/min for 18 seconds. ℃ cooling air ring cooling device, and the filament is cooled and solidified to room temperature. Thereafter, a spinning oil is applied and each filament is converged to form a multifilament. After interlacing is provided, the drawing roller speed is 2400 m/min, and the stretching and winding are performed at a draw ratio of 1.82 times through a drawing roller heated to 170°C. Thus, a 15 dtex, 20 filament nylon 6 multifilament yarn is obtained.

For a plain fabric using the same warp yarns as in Example 1 and the 15 dtex, 20 filament nylon 6 multifilament obtained here and configured as weft yarns, the final product fabric was woven into a warp density of 280 threads/2.54 cm and a weft density of 240 threads. /2.54 cm. The obtained gray fabric was dyed using the same method as in Example 1, and the physical properties of the fabric were measured. The obtained fabric has a hard and curved feel, the initial/post-wash air permeability exceeds 1.0 cc/cm ² /s (cm ³ /cm ² /s), which is insufficient for use as a down jacket, and the number of down fleece after washing also exceeds that. The 50 pieces that meet the standard are not enough for a down jacket. The measurement results are shown in the table below.

[Table 1] [Table 1] Example 1 Example 2 Example 3 Example 4 Comparative example 1 Comparative example 2 Comparative example 3 Comparative example 4 Comparative example 5 Comparative example 6 Fineness [dtex] by 11 11 11 13 11 11 11 twenty two twenty two 11 latitude 11 15 17 13 11 11 11 twenty two twenty two 15 fineness ratio 1 0.7 0.6 1 1 1 1 1 1 0.7 Single yarn fineness [dtex] by 1.4 1.4 1.4 0.5 1.4 1.4 1.4 1.1 1.1 1.4 latitude 0.5 0.6 0.7 0.5 0.5 0.5 0.5 0.9 0.9 0.8 Raw yarn strength[cN] by 71 71 71 85 71 71 71 147 147 71 latitude 78 103 105 85 78 62 78 144 144 99 Raw yarn strength [cN/dtex] by 6.5 6.5 6.5 6.5 6.5 6.5 6.5 6.7 6.7 6.5 latitude 7.1 6.9 6.2 6.5 7.1 5.6 7.1 6.5 6.5 6.6 Raw yarn elongation [%] by 44.7 44.7 44.7 38.9 44.7 44.7 44.7 42.6 42.6 44.7 latitude 39.4 45.1 45.1 38.9 39.4 47.5 46.3 39.4 39.4 38.3 textile organization plain weave plain weave plain weave plain weave plain weave plain weave Tear resistant Tear resistant plain weave plain weave Density [root/2.54 cm] by 280 288 296 266 280 280 291 205 204 280 latitude 240 220 226 230 220 240 236 153 160 220 CF by 929 955 982 959 929 929 965 962 957 929 latitude 796 852 932 829 730 796 881 807 750 852 total 1725 1807 1914 1788 1658 1725 1846 1769 1707 1781 Tear strength[N] by 7.8 8.7 8.5 9.2 7.8 7.9 10.6 19.5 13.5 7.8 latitude 7.2 10.5 9.6 9.0 6.7 5.8 8.1 15.4 8.5 9.5 Air permeability [cc/cm²/s] initial 0.5 0.2 0.5 0.2 0.7 0.5 0.7 1.4 0.4 0.7 5HL 0.6 0.5 0.9 0.2 1.2 0.6 0.8 1.7 0.7 1.3 KES bending rigidity [gf･cm²/cm] by 0.0082 0.0071 0.0071 0.0037 0.0082 0.008 0.012 0.017 0.0128 0.0087 latitude 0.0036 0.0029 0.0035 0.0022 0.0036 0.0035 0.0085 0.011 0.006 0.0108 0.0059 0.0050 0.0053 0.0030 0.0059 0.0058 0.0103 0.0140 0.0094 0.0098 Fabric breakdown yarn strength [cN] by 56 57 56 60 56 56 56 101 101 57 latitude 51 78 79 62 51 48 56 105 105 71 Fabric decomposed yarn strength [cN/dtex] by 5.1 5.2 5.1 4.6 5.1 5.1 5.1 4.6 4.6 5.2 latitude 4.6 5.2 4.6 4.8 4.7 4.3 5.1 4.8 4.8 4.7 Number of velvet roots [roots] initial 12 8 14 3 31 20 33 54 18 38 5HL 15 twenty four 30 5 52 29 42 67 27 55

without

without

Claims (5)

A textile, which is a textile with a plain weave structure including polyamide multifilaments. In the textile, the total fineness of the multifilaments in both longitude and weft is 17 dtex or less, and the single yarn fineness of at least one of the longitude and weft is 17 dtex or less. It is below 0.7 dtex, the decomposed yarn strength of the fabric is above 4.5 cN/dtex, and the coverage coefficient is above 1700. The textile as claimed in claim 1, wherein the tearing strength of the textile is more than 6 N in both the warp and weft. The textile as claimed in Claim 1 or Claim 2, wherein the initial air permeability and the air permeability after washing are 1 cm ³ /cm ² /s or less. The textile according to any one of claims 1 to 3, wherein the bending rigidity based on kinetic energy stiffness is 0.008 gf·cm ² /cm or less. A clothing material using the textile described in any one of claims 1 to 4.