KR102026166B1 - Textile using a flat multilobar cross-section fiber - Google Patents

Abstract

The present invention provides light weight, thin fabrics, fabrics, garments, and down shells and down jackets with high strength, low breathability and good gloss. More specifically, the present invention relates to a fabric that can be suitably used for fabrics such as sportswear such as down jackets, windbreakers, golf wear, and rainwear, casual wear, or ladies' garments, and sewing products using at least a portion thereof. Provided is a down shell and down jacket using at least a portion of the fabric. The fabric of the present invention is a fabric in which calendering is performed on one side or both sides, and in the polyamide fiber after calendering, the short fiber fineness is 0.5 to 2.5 dtex, the total fineness is 5 to 50 dtex, and the cross-sectional shape of the short fiber is the leaf portion. It is a flat multileaf type having 6 to 10 polyamide fibers having a flatness (W) (α / β) of 1.5 to 3.0, composed of warp or / and weft, and having a cover factor of 1200 to 2500.

Description

TEXTILE USING A FLAT MULTILOBAR CROSS-SECTION FIBER}

FIELD OF THE INVENTION The present invention relates to fabrics that are lightweight, thin fabrics and that have high strength, low breathability and excellent glossiness. More specifically, the present invention relates to a fabric having a light weight and thin fabric composed of fine-grained flat multi-lobed cross-section polyamide fibers and having a high strength, low breathability and excellent glossiness.

As represented by the current outdoor boom, consumer's leisure orientation is increasing year by year. In particular, the demand for sports clothing has increased year by year with the spread of outdoor sports, and the demand for the use of materials such as tents, sleeping bags, and canvases, and the lightening and thinning of clothing, has increased. Fabrics for sports apparel use require high strength, and in particular, an increase in tear strength and wear strength is required. In particular, when performing a film processing such as lamination processing, since the slippage of the thread hardly exists in the fabric, the tear strength tends to be lowered, and an increase in the tear strength of air bubbles is increasingly required. .

Until now, fabrics made of polyester multifilament, nylon multifilament, or composite composite filaments thereof have been widely used in the fabrics because of their excellent mechanical properties for the purpose of weight reduction or thinning of downwear and sports materials. Since these fabrics are soft, lightweight, and excellent in wind resistance, water repellency, and fastness, they are widely used in coats, jackets, golf wear, and outdoor sports wear.

As an example for solving the problem of high strength, light weight and thinning, Patent Document 1 is a fabric composed of synthetic multifilament, wherein the fabric is at least one side of the synthetic multifilament in a state in which the monofilaments are overlapped by calendering Disclosed is a fabric, wherein the monofilament has a fineness of 7 dtex to 44 dtex, and the cover factor of the fabric is 1300 to 2200, wherein the monofilament has a Y-shaped cross shape.

Japanese Patent Publication No. 2010-196213

However, the woven fabric obtained by the method described in Patent Literature 1 has become a gloss with a flickering and stripe feeling by reflecting light gathering, and is insufficient in terms of designability of glossiness in a product together with functionality. Thus, even in the prior art, even a fabric satisfying the characteristics required for high strength, light weight, and thinning, the glossiness is not sufficiently considered, and an elegant and elegant fabric is not obtained. In addition, in the prior art, when the fabric is repeatedly washed, the air permeability decreases significantly, and when used as a shell of a down jacket, for example, a down slip occurs, and thus the sustainability of a sufficient function cannot be obtained.

The present invention solves these problems of the prior art, and is a lightweight thin cloth that is suitably used for the fabric of sportswear, casual wear or ladies gentlemen's clothing represented by down jackets, windbreakers, golf wear and rainwear, etc. It is an object of the present invention to provide a fabric having high strength, low breathability and excellent glossiness, a sewing product using the fabric at least in part, and a down shell and down jacket using the fabric in at least part thereof.

In order to achieve the above object, the fabric of the present invention mainly has the following configuration. In other words,

(1) One side or both sides of the fabric subjected to calendering, the polyamide fibers constituting the warp or / and weft of the fabric after calendering have a short fiber fineness of 0.5 to 2.5 dtex, a total fineness of 5 to 50 dtex, and short fibers The cross-sectional shape of is a flat multi-lobed shape having 6 to 10 blades, the longest line segment connecting any two points of the convex apex of the flat multi-lobed line with the line segment A (the length of α), Another line segment B (the length of the angle of the neighboring side is 90 °) of a circumscribed quadrangle consisting of a tangent line parallel to the line segment A and including the outermost vertex The flatness (W) ((alpha) / (beta)) shown by () is 1.5-3.0, and the cover factor is 1200-2500, The fabric characterized by the above-mentioned.

(2) In the above (1), the polyamide fiber used for the fabric before calendering has a short fiber fineness of 0.4 to 2.2 dtex, a total fineness of 4 to 44 dtex, and the cross-sectional shape of the single fiber is 6 to 10 flat multi-leaf shapes. Is a line that is the length of the longest line segment A connecting any two points of the flat multi-lobed convex vertices a, and is a line parallel to the line segment A and includes the outermost vertex. The length of the other line segment B of the circumscribed quadrangle (an angle composed of neighboring sides is 90 °) is b, and between the vertices of adjacent convex portions at the largest unevenness among the unevenness formed by the flat multi-lobed shape. When the length of the line segment C to connect is set to c, and the length of the waterline D lowered to the line segment C connecting between the apex of the convex part from the bottom of the concave part pinched | interposed between the said convex parts is set to d, Characterized in that the polyamide fibers to satisfy the Fabric.

Flatness (F) (a / b) = 1.5 to 3.0

Deformation degree (F) (c / d) = 1.0 to 8.0

(3) The fabric according to the above (1) or (2), wherein the tear strength is 5.0 N or more, and the initial air permeability is 1.0 cc / cm 2 / s or less.

(4) The woven fabric according to any of the above (1) to (3), wherein the air permeability after 50 washes is 1.0 cc / cm 2 / s or less.

(5) The woven fabric according to any one of (1) to (4), wherein the difference between the initial air permeability and the air permeability after 50 washings is 0.4 cc / cm 2 / s or less.

(6) A sewing product comprising at least a part of the fabric according to any one of (1) to (5) above.

(7) A down shell or down jacket, wherein the fabric according to any one of the above (1) to (5) is used at least in part.

(Effects of the Invention)

According to the present invention, a fabric having a light weight and thin cloth, and having a high strength, low breathability, and an excellent glossiness without a feeling of glitter or stripe is obtained. Further, a fabric that can be suitably used for fabrics such as sportswear, casual wear, and ladies' garments represented by down jackets, windbreakers, golf wear and rainwear is obtained. Moreover, according to this invention, the sewing product which used the fabric of this invention for a part is obtained. Further, down shells and down jackets are obtained in which the fabric of the present invention is used in part.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is an SEM photograph of a drawing side cross section illustrating a fabric of the present invention.
It is sectional drawing which shows the example of the modification of the short fiber cross-sectional shape which comprises the fabric of this invention.
It is a schematic cross section which shows the spinneret discharge hole shape used by the Example of this invention.
It is a schematic cross section which shows the spinneret discharge hole shape used by the comparative example.
It is a schematic side cross-sectional view of the Y cross section fiber fabric obtained by the comparative example.

The polyamide constituting the fabric of the present invention is a polymer in which a so-called hydrocarbon group is linked to the main chain through an amide bond, and polycaprolactam (nylon 6), polyhexamethyleneadipamide (nylon 66), polyhexamethylene sebacamide (nylon) 6,10), polytetramethyleneadipamide (nylon 4,6), polypentamethyleneadipamide (nylon 5,6), 1,4-cyclohexanebis (methylamine) and linear aliphatic dicarboxylic acid And condensation polymerization type polyamides and copolymers thereof or mixtures thereof. Nylon 6 and nylon 66 are preferable from the point of dyeability and color development, More preferably, it is nylon 6.

Although the polymerization degree of the said polyamide may be set suitably according to the fabric demand characteristic, it is preferable that 98% sulfuric acid relative viscosity is two or more, More preferably, it is three or more. By setting the relative viscosity of 98% sulfuric acid to 3 or more, the cross-sectional shape of the single fiber at the time of spinning forms 6 to 10 flat multi-lobed shapes, and can be obtained by controlling the flatness and the degree of release to a specific range and stably spinning. Especially, it is more preferable that 98% sulfuric acid relative viscosity is 3.3 or more. As an upper limit of a 98% sulfuric acid relative viscosity, it is preferable that it is 7 or less from a viewpoint of normality.

Moreover, as long as it is the quantity and kind of the range which does not impair the objective of this invention, additives for improving productivity, such as heat resistance (light stabilizer, heat stabilizer, antioxidant, antistatic agent, terminal group regulator, and dyeing property improving agent, etc.) may be added, Additives for imparting functionality (such as ultraviolet absorbers, ultraviolet shields, contact cooling agents and antibacterial agents) may be added. However, it is preferable that the average particle diameter of an additive is 1 micrometer or less, and since addition of an inorganic particle including a white pigment is not limited, since the desabilitation property and durability are reduced, it is the quantity which becomes 2.0 mass% or less in fiber. It is preferable that it is preferable, and it is more preferable embodiment that it is 1.0 mass% or less.

Next, the polyamide fiber after calendering which comprises the fabric of this invention is demonstrated in more detail.

The cross-sectional shape of the short fiber of the polyamide fiber after calendering which comprises the fabric of this invention is a flat multileaf type with 6-10 leaf parts, and needs to have flatness (W) 1.5-3.0.

1 is an SEM photograph (magnification 600 ×) of a fabric side cross section illustrating a fabric of the present invention. As shown in Fig. 1, short polyamide fibers (for example, 1 to 3) located on the fabric surface after calendering are in a smooth state. Therefore, at the time of the determination of the said flatness W, the polyamide short fiber (for example, 4-6) which is not located in the fabric surface was made into the short fiber of the polyamide fiber after calendering. In addition, the flatness selected arbitrary 5 polyamide short fibers which are not located in the fabric surface, and used the average value of the measured value, respectively.

The flatness W here is the longest line segment A which connects arbitrary two points of the convex part apex of the said flat multileaf type like the opening example of the short fiber cross-sectional shape shown in FIG. ) And another line segment B (the length of the angular quadrangle consisting of a tangent line parallel to the line segment A and including the outermost vertex (the angle of the angle of the neighboring side is 90 °). Is defined as β), α / β is defined as flatness. In the fabric produced by making flatness W ((alpha) / (beta)) into 1.5-3.0, short fibers can overlap each other in the state with few voids, and air permeability can be reduced. Moreover, in this range, flatness can express simultaneously the excellent glossiness and the sufficient strength which can endure practical use. If the flatness is less than 1.5, the surface area decreases and sufficient glossiness cannot be expressed. When the flatness exceeds 3.0, the anisotropy of the polymer is increased to give a shiny gloss and sufficient strength to withstand practical use cannot be obtained. The flatness is preferably 1.5 to 2.8.

In addition, the number of leaf parts here is the value which divided the number of inflection points of a fiber cross section by two. That is, the multi-leaf cross section usually has convex portions constituting the leaf portion and concave portions sandwiched between the leaf portions alternately, and since each has an inflection point, the number of the leaf portions can be counted by dividing the number of the inflection points by two. As shown in Fig. 1, short polyamide fibers (for example, 1 to 3) located on the fabric surface after calendering are in a smooth state. Therefore, at the time of determining the number of the leaf portions, short polyamide fibers (for example, 4 to 6) not located on the fabric surface were used as short fibers of polyamide fibers after calendering.

In addition, the number of leaf | leaf parts used the average value of the values measured by selecting five arbitrary polyamide short fibers which are not located in the fabric surface. Good glossiness can be obtained by having 6-10 leaf parts. In particular, in the case of having 6 to 8 leaf parts, an elegant gloss is expressed, and in the case of having 8 leaf parts, high gloss can be expressed, which is a more preferred embodiment. If the number of blades is less than 6, there is a flash, artificial luster, which looks like a stripe. When the number of the leaf parts exceeds 10, light is scattered and becomes a faint glossiness, and sufficient glossiness is not obtained.

The flatness (W) in the above range and the number of the leaf portions make it easy to constrain the movement of the short fibers, and are compressed and fixed by calendering, so that the unevenness of the short fibers overlaps and the voids are overlapped and the air gap suppresses the air permeability. Aeration can be reduced. For example, in the Y cross section or the cross section, there is also a part (region O) in which the concave portion and the convex portion overlap and the deviation is suppressed in the direction in which the single fibers overlap, but the concave depending on the direction in which the short fibers overlap. Since portions (regions X) where portions and recesses easily overlap with each other are formed correspondingly, the air permeability increases or causes a deviation (FIG. 5). In addition, the woven fabric of the present invention has a suitable unevenness in the cross section of short fibers, so that the surface of the woven fabric is uniformly smoothed by calendering, so that good glossiness can be obtained.

The short fiber fineness of the polyamide fiber after calendering which comprises the fabric of this invention needs to be 0.5-2.5 dtex. By setting the short fiber fineness in this range, a fabric having sufficient strength and low breathability to withstand practical use is obtained. When the single fiber fineness is less than 0.5 dtex, sufficient strength to withstand practical use is not obtained, and when it exceeds 2.5 dtex, low breathability is not obtained. Short fiber fineness becomes like this. Preferably it is 0.5-2.0 dtex.

In addition, the total fineness needs to be 5-50 dtex from the viewpoint of the lightness of the woven fabric when used as a downwear or sports material. By making total fineness into this range, the fabric which is lightweight thin cloth and has sufficient strength to endure practical use is obtained. When the total fineness is less than 5dtex, a fabric having sufficient strength to withstand practical use is not obtained, and when the total fineness exceeds 50dtex, a fabric of light weight and thin cloth is not obtained. The total fineness is preferably 5 to 45 dtex, more preferably 5 to 35 dtex.

Total fineness here was measured as follows. That is, draw two lines at intervals of 100 cm in the warp or weft direction in the state of the fabric, disassemble the fabric into each warp or weft, apply a load of 1/10 g / dtex to the disintegration chamber, Lcm) was measured. The yarn was cut between two points (L), the weight (Wg) was measured, and the fineness was computed by the following formula.

Total fineness (fabric decomposition chamber) = W / L × 1000000 (dtex)

The short fiber fineness is a value obtained by dividing the total fineness by the number of filaments.

Next, the polyamide fiber used for the fabric before calendering which comprises the fabric of this invention is demonstrated in more detail.

The cross-sectional shape of the short fiber of the polyamide fiber used for the fabric before calendering which comprises the fabric of this invention is 6-10 pieces of flat multi-lobed shape, and flatness (F) (a / b) = 1.5-3.0, release degree (F It is preferable that it is (c / d) = 1.0-8.0. Moreover, if the cross-sectional shape of short fiber is 6-10 sheets, it will become easy to obtain favorable glossiness. In particular, the range of 6-8 sheets in cross-sectional shape is more preferable because it expresses an elegant gloss, and the eight flat multi-lobed type expresses high-quality gloss, which is the most preferred embodiment.

The flatness F and the release degree F here are the length of the longest line segment A which connects arbitrary two points of the said convex part vertex of the said flat multileaf shape like the opening example of the short fiber cross-sectional shape shown in FIG. Is a, and the length of the other line segment B of a circumscribed rectangle (an angle composed of neighboring sides is 90 °) composed of a tangent line parallel to the line segment A and including an outermost vertex. b, the length of the line segment C connecting between the vertices of adjacent convex portions at the largest concave-convex part of the flat multi-lobed shape is set to c, and is connected between the vertices of the convex portions from the bottom of the concave portion fitted to the convex portions. When the length of the waterline D lowered on the line segment C is d, a / b is defined as flatness and c / d as a degree of release. For the cross-sectional shape of the single fiber constituting yarn, five single yarns are arbitrarily selected from a cross-sectional photograph (400 times) using an optical microscope to calculate a / b and c / d, and the average values are calculated as flatness (F) and mold release degree ( F).

In the fabric produced by making flatness (F) (a / b) into 1.5-3.0, short fibers overlap in the state with few voids, and air permeability can be reduced. Moreover, in this range, flatness can express simultaneously the excellent glossiness and the sufficient strength which can endure practical use. The flatness is preferably 1.5 to 2.8.

The release degree F (c / d) represents the size of the recess between the intestine and the intestine in the flat multi-lobed shape.If the release degree F is large, the recess is shallow, and if the release degree F is small, the recess is deep. It means. In order to keep the space | gap of the short fibers at the time of textile formation small, and to raise a low air permeability effect easily to overlap, it is preferable to make mold release degree F 8.0 or less.

On the other hand, in order to maintain the strength of the polyamide forming the short fibers, the degree of release (F) is preferably 1.0 or more. More preferable mold release degree F is 2-7 from a glossiness and a touch point.

It is easy to constrain the movement of short fibers by using a flat multi-leaf cross-section yarn having a flatness (F) and a degree of release (F) in this range in advance, and compression and fixation are performed by calendering so that irregularities between the short fibers are overlapped and there are few voids. Overlapping in the state increases the effect of suppressing air permeability, thereby suppressing air permeability. In addition, since the cross section of the short fibers is multi-leaf type, the unevenness of the short fibers is always interlocked regardless of the direction in which the single fibers are overlapped, thereby suppressing the misalignment of the fabric. In addition, since the cross section of the short fibers has an appropriate unevenness, the surface of the fabric tends to be uniformly smoothed by calendering, and it is easy to obtain good glossiness.

It is preferable that the short fiber fineness of the polyamide fiber used for the fabric before calendering which comprises the fabric of this invention is 0.4-2.2 dtex. If the short fiber fineness is less than 0.4 dtex, it becomes too thin, so that sufficient strength to withstand practical use is hardly obtained. Moreover, low breathability is hard to be obtained when short fiber fineness exceeds 2.2 dtex. The short fiber fineness is more preferably 0.4 to 1.8 dtex.

Moreover, it is preferable that the total fineness is 4-44 dtex from the viewpoint of the lightness of the cloth at the time of using it as a downwear or sports material. If the total fineness is less than 4 dtex, it is difficult to obtain a fabric having sufficient strength to withstand practical use. When the total fineness exceeds 44 dtex, it is difficult to obtain a lightweight thin cloth fabric. The total fineness is more preferably 4 to 40 dtex, more preferably 4 to 31 dtex.

The fabric of the present invention uses the flat multi-lobed cross-section polyamide fibers in warp or / and weft. In addition, the fiber form can use what is manufactured by the well-known method similar to general synthetic fiber, such as a processing chamber and twisted yarn.

Fabrication is made by known methods (knitting and dyeing) similar to common synthetic fibers. Next, a preferable manufacturing method is illustrated.

In the knitting process, a warp knitting machine beam is first created. That is, after making a canon beam with an Aramaki canon, if sizing is necessary, paste it into a paste via a sizer, and use a beamer to prepare a loom beam of the required number of yarns. If sizing is unnecessary, a loom beam may be produced directly from the beam from the beam to the beamer. Moreover, it is also possible to prepare a loom beam after creating a sizing beam directly using a wafer sizer. Subsequently, the loom beams are ridden and drawn to be installed on the loom, and the weft thread is woven into the loom.

There are types of looms, such as a water jet loom, an air jet loom, a rapier loom, and a gripper loom, but any of the looms may be produced. The fabric tissue may be any of flat tissue, twill tissue, runner tissue, their change tissue, or mixed tissue thereof depending on the use of the fabric. However, in order to increase low breathability, flat tissue having a lot of restraint points is preferable. Moreover, when it is necessary to raise tear strength in the down proof cloth, the outdoor cloth, the windbreaker cloth, etc., the structure which comprises a lattice pattern is preferable, and the rip stop structure which has a rip stop part is preferable.

The woven fabric of the present invention needs to have a cover factor of 1200 to 2500 (hereinafter sometimes referred to as CF). By making CF into this range, a fabric having light, thin and low air permeability is obtained. When the CF is less than 1200, a lightweight thin cloth fabric is obtained, but it is difficult to satisfy low breathability. In addition, when CF exceeds 2500, low breathability is obtained, but light and thin fabric is difficult to obtain. The cover factor CF here is calculated by the following formula.

CF = T × (DT) ^1/2 + W × (DW) ^1/2

In the formula, T and W represent the warp density and weft density of the fabric (2 / 2.54 cm), and DT and DW represent the total fineness of the warp and weft yarn constituting the fabric.

In the dyeing process, refining, presetting, dyeing and finishing settings are performed. Dyeing can preferably use the acid dye and gold containing dye used for a polyamide fiber. And you may perform functional processing for the purpose of imparting function after dyeing. In the process of imparting a functional agent, the functional agent is impregnated by a dipping method (padding method) or the like, followed by drying and curing. For example, in the case of down proof, outdoor, and windbreaker, calendering and water repellent are performed as a function provision, and water-repellent treatment agents, such as an organic fluorine compound type, silicone type, and paraffin type, can be used as the water repellent agent. .

The woven fabric of the present invention needs to be calendered on one side or both sides. The calendering process uses a normal calendering machine, and the thermal calendering system is common these days. A fabric having a desired air permeability is obtained by appropriately selecting the heat shrinkage rate, the density of the fibers, and the processing conditions such as the heating temperature, the press pressure, and the processing time in the heating and press working. Although these conditions are mutually related, after considering the heat shrinkage rate of a fiber, what is necessary is just to set suitably in the range of heating roll temperature 130 degreeC or more and 210 degrees C or less, heating roll load 98 kN or more and 149 kN or less, and cloth traveling speed of 10-30 m / min.

It is preferable that the tear strength of the woven fabric of this invention is 5.0N or more, More preferably, it is 6.0N or more. The direction of tear strength here refers to the tear strength in the longitudinal direction when polyamide fibers having a flat multi-lobed cross section are used as warp yarns, and the tear strength in the transverse direction when polyamide fibers having a flat multi-leaf cross section are used as weft yarns. . In addition, when flat polylobed polyamide fibers are used for warp and weft yarns, tear strength in the longitudinal and transverse directions is exhibited. By setting the tear strength to 5.0 N or more, a fabric having sufficient strength to withstand practical use is obtained. It is preferable that tear strength is 40 N or less, and it is more preferable that it is 30 N or less from the point which is a lightweight thin cloth and a high strength fabric is obtained.

The air permeability (sometimes referred to as initial air permeability) of the woven fabric of the present invention is preferably 1.0 cc / cm 2 / s or less, more preferably 0.8 cc / cm 2 / s or less. By setting the air permeability to 1.0 cc / cm 2 / s or less, a fabric excellent in low air permeability is obtained. When used for fabrics such as downwear, down jackets, and sportswear, the air permeability is preferably 0.3 cc / cm 2 / s or more in order to obtain appropriate low breathability that facilitates deformation of expansion and contraction caused by air entering and exiting.

Moreover, it is preferable that the air permeability after 50 wash | cleaning of the cloth of this invention is 1.0 cc / cm <2> / s or less, More preferably, it is 0.9 cc / cm <2> / s or less. If the air permeability after 50 washes is 1.0 cc / cm <2> / s or less, the fall off | separation from the fabric in washing and the fall off by the shift | offset | difference of the fabric after washing will not arise, and the fabric excellent in down-proof property is obtained. On the other hand, if the air permeability after washing 50 times exceeds 1.0 cc / cm 2 / s, the down is likely to occur, and the fabric may have a stain on the surface of the fabric due to the misalignment of the fabric, which may cause the quality of the down jacket or the like to be greatly degraded. .

The fabric of the present invention is more constrained by the movement of short fibers by using the flat multi-layered yarn of the flatness (F) and the release degree (F) in the above-described range in advance, and the irregularities between the short fibers are compressed and fixed by calendering. In addition to overlapping, the voids are overlapped in a state where the airflow suppression effect is increased to suppress airflow. In addition, since the cross section of the short fibers is multi-leaf type, the irregularities of the short fibers are always engaged by suppressing the misalignment of the fabric regardless of the direction in which the short fibers overlap, thereby exhibiting an excellent air permeability suppression effect even after washing. For example, in the Y cross-section fiber or cross-section fiber, a portion is formed in which the concave portion and the concave portion overlap with each other along the direction in which the short fibers overlap, so that the air permeability increases or causes a misalignment (Fig. 5). ).

In addition, the fabric of the present invention preferably has a difference between the initial air permeability and the air permeability after washing 50 times of 0.4 cc / cm 2 / s or less. The fabric of the present invention is made of a CF fabric of the above-described range using a flat multi-leaf cross-section yarn of the flatness (F) and the release degree (F) in the above-mentioned range, so that low breathability can be maintained after washing, and irregularities between short fibers By the effect of suppressing the misalignment caused by the high gloss and uniform surface of the fabric can be maintained, the quality of the down jacket can be maintained.

The fabric of the present invention is a lightweight, thin cloth, and a fabric having high strength, low breathability, and excellent glossiness without a glare or stripe is obtained. Further, a fabric that can be suitably used for fabrics such as sports, casual wear, and ladies' garments represented by down jackets, windbreakers, golf wear and rainwear is obtained.

The sewing product of the present invention is characterized by using a fabric obtained in the present invention as a part thereof. The use thereof is not limited, but is a sports wear, a casual wear or a ladies' gentleman's clothing such as a down jacket, windbreaker, golf wear and rainwear.

Further, the down shell and down jacket of the present invention are characterized by using at least a part of the fabric obtained in the present invention.

Example

Next, the textile of this invention is demonstrated in detail by an Example. Each measured value in the Example followed the following method.

A. Relative Viscosity

The sample is weighed and dissolved in 98% by mass concentrated sulfuric acid so that the sample concentration (C) is 1 g / 100 ml, and the solution is measured using a Oswald viscometer to measure the number of drops T1 at a temperature of 25 ° C. The falling number of seconds (T2) at the temperature of 25 degreeC of the 98 mass% concentrated sulfuric acid which does not melt | dissolve a sample was measured similarly, and the 98% sulfuric acid relative viscosity ((eta) r) of a sample was computed by the following formula.

(Ηr) = (T1 / T2) + {1.891 × (1.000-C)}.

B. Total fineness and single fiber fineness

(a) nylon 6 fiber

A fiber sample is wound 400 times with a tension of 1/30 cN × decitex in a detector having a frame of 1.125 m. After drying at a temperature of 105 ° C. for 60 minutes, it was transferred to a desiccator, left to cool for 30 minutes at a temperature of 20 ° C. and a 55 RH environment, and the mass per 10,000 m was calculated from the value obtained by measuring the mass of the reel. The total moisture content of the fiber was calculated by setting the process moisture content to 4.5%. The measurement was performed 4 times and the average value was made into total fineness. In addition, the value obtained by dividing the obtained total fineness by the number of filaments was taken as the short fiber fineness.

(b) textile disintegrator

In the state of the fabric, two lines are drawn at intervals of 100 cm in the warp or weft direction, and the warp or weft of the fabric in the line is disassembled. Subsequently, in order to determine the measurement load, the total fineness is calculated. 2 g of load was applied to the obtained disintegrated sand, the length (Lcm) between two points was measured, and the cut (weight) Wg was measured between two points (Lcm), and the total fineness was computed by the following formula. Subsequently, a load of 1/10 g / dtex was applied to the total fineness, and the length and weight between the two points were measured as described above, and the total fineness was calculated by the following equation.

Total fineness (fabric decomposition thread) = W / L × 1000000 (dtex)

In addition, the value obtained by dividing the obtained total fineness by the number of filaments was taken as the short fiber fineness (dtex). The same measurement was repeated 5 times and the average was described in the result.

C. Cross-sectional shape of nylon 6 fiber

The cross-sectional shape was observed at a magnification of 400 times using an optical microscope, and the longest line segment A and a line parallel to the line segment A, connecting any two points of the convex vertices of the flat multi-lobed shape, In addition, another line segment (B) of a circumscribed rectangle (an angle composed of neighboring sides is 90 °) constituted by a tangent including an outermost vertex, and a vertex of an adjacent convex portion in the largest unevenness formed by the flat multi-lobed shape. The length of each line (C) which connects between them, the waterline (D) which fell in the line segment (C) which connects between the apex of the convex part from the bottom of the concave part pinched by the said convex part, and measured each length were computed from following Formula.

Flatness (F) = (a / b) a: length of line segment A, b: length of line segment B

Deformation degree (F) = (c / d) c: length of line segment (C), d: length of line segment (D)

According to the above method, the flatness F and the release degree F were calculated, and the five average values arbitrarily selected were called flatness F and release degree F of yarns.

D. Cross-sectional shape of the fabric

The fiber cross-sectional shape was observed from the cross-sectional photograph of the fabric by SEM of 600 times magnification, and the flatness W and the number of irregularities were determined according to the following method. Among the single yarns constituting the woven fabric, five were randomly selected and evaluated from those not exposed to the calendered surface, and the average value was taken as the number of flatness (W) and the inflection point of the polyamide fiber.

(a) Flatness (W)

Longest line segment (A) (connecting its length as α) connecting any two points of the flat multi-lobed convex vertices, a line parallel to the line segment (A), and a tangent including the outermost vertex Α / β is defined as flatness (W) when another line segment B (the length of which is referred to as β) of a circumscribed quadrangle constituted by (an angle composed of neighboring sides is 90 °). 2).

(b) number of leaves

The number of inflection points of the fiber cross section is defined as the value divided by two.

E. Tear Strong

The tear strength of the fabric was measured in both warp and weft directions in accordance with the tear strength JIS method D method (gravure method when wet) specified in JIS L 1096 (2010) 8. 14.1.

F. Unit Weight

The unit weight of the fabric was measured according to JIS L 1096 (2010) 8. 3.1 quantification.

G. Aeration

The air permeability of the woven fabric was measured in accordance with the breathable A method (flame mold method) specified in JIS L 1096 (2010) 8. 26. 1.

(a) early aeration

The air permeability was measured 3 times about the non-washed fabric, and the average value was evaluated.

(b) Aeration after 50 washes

Washing of the fabric was performed in accordance with the F-2 method described in the dimensional change of the fabric of JIS L 1096 (2010) 8. 64.4. 50 times of washing is when washing, dehydration and drying are repeated 50 times. The air permeability after 50 washings of the cloth measured the air permeability after 50 washings 3 times, and evaluated it by the average value.

H. Glossiness

The glossiness of the fabric was evaluated relative to Comparative Example 1 by the viewpoints of five skilled workers and determined in the following five stages. The fabric which calendered only one side was evaluated about the calendered side. Four or more points were said to pass.

5: There is the elegant luster with the sense of quality.

4: It has a mild luster.

3: Normal gloss (Comparative Example 1).

2: There is a weak flash or stripe feeling.

1: There is a feeling of glitter and stripe.

I. Down Fallout Evaluation

The down slipping evaluation of the fabric was made using a fabric after 50 times of washing to prepare a 35 cm × 35 cm sample filled with 40 g of feathers inside (sewing is sealed by resin), and the sample was placed in a tumble dryer. It is operated for 60 minutes without heating together with five rubber tubes specified by JIS L 1076 (2010) A method. After the operation was completed, the sample was taken out and the degree of missing hair was determined visually. The following five stages of determination were performed. Four or more points were said to pass.

5: 3 or less

4: 4-10

3: 11-30

2: 31-50

1: 51 or more

J. Comprehensive Evaluation

Glossiness and down omission evaluation were added, and 8 or more points were said to pass.

Example 1

(Production of Nylon 6 Flat 8 Lobed Fiber)

Spinning of the ejection hole using nylon 6 having a relative viscosity of 3.5 (a slit width: 0.07 mm, a slit length ratio: e / f = 5/2) as shown in Fig. 3 (a) at a spinning temperature of 285 ° C. After melt discharging from the mold, it is cooled, lubricated, and entangled, followed by a 2800 m / min Gode roller, and then drawn at 1.4 times, then heat-set at a temperature of 155 ° C., and 33 dtex 26 filaments at a winding speed of 3500 m / min. Nylon 6 flat 8 leaf cross section fiber was obtained.

Flatness (F) and mold release degree (F) were computed from the cross-sectional photograph of the obtained nylon 6 fiber. The results are shown in Table 1.

(Preparation of nylon 6 circular cross section fiber of 22dtex 20 filaments)

After melt-discharging from the spinneret of the ring hole using a nylon 6 having a relative viscosity of 3.0 at a spinning temperature of 280 ° C., after cooling, lubricating and entangled, it was succeeded by a 2,480 m / min Gode roller, followed by stretching at 1.7 times. It heat-set at the temperature of 155 degreeC, and obtained the nylon 6 ring cross section fiber of 22 dtex 20 filaments at the winding speed 4000 m / min.

(Fabric production)

The nylon 6 flat 8-leaf cross-section fiber is used for the weft, and the nylon 6 circular cross-section fiber of 22dtex 20 filaments is used for the warp, and the warp density is set to 188/2 / 2.54 cm and the weft density 135 / 2.54 cm. Weaving

The resulting fabric was refined by open soap in a solution containing 2 g of caustic soda (NaOH) per liter according to the conventional method, dried at a temperature of 120 ° C. using a cylinder dryer, and then pre-set at 170 ° C., with a Jigger dyeing machine. It dyed and immersed the fluorine-type resin compound (padding method), drying (temperature 120 degreeC), and finishing setting (temperature 175 degreeC). Then, calendering (processing conditions: cylinder processing, heating roll surface temperature 180 degreeC, heating roll weighting 147kN, cloth running speed 20m / min) was performed once on both surfaces of the fabric, and the fabric was obtained. The physical properties and evaluation results of the obtained fabric are shown in Tables 2 and 3. It was a good fabric. The SEM photograph of the fabric side cross section of this fabric is shown in FIG.

Example 2

Nylon 6 flat 8-sided cross section of 33dtex 26 filament in the same manner as in Example 1, except that nylon 6 circular cross-section fiber of 22 dtex 20 filaments was used for warp and changed to spinning temperature of 280 ° C. Fibers were prepared to obtain a fabric. The physical properties and evaluation results of the obtained fabric are shown in Tables 2 and 3. It was a good fabric.

Example 3

Nylon 6 flat 8 filaments of 33 dtex 26 filaments in the same manner as in Example 1, except that nylon 6 circular cross-section fibers of 22 dtex 20 filaments were used for warp, and the spinning temperature of the nylon 6 flat 8 filament fibers was changed to 275 ° C. Sectional fibers were made to obtain a fabric. The physical properties and evaluation results of the obtained fabric are shown in Tables 2 and 3. It was a good fabric.

Example 4

The nylon 6 circular cross section fiber of 22 dtex 20 filament was used for warp yarn, and the discharge hole shape of the spinneret (FIG. 3 (b), width of the slit: 0.07 mm, ratio of the length of the slit: g / h = 5/2) was used. Except for the change, a nylon 6 flat 6 leaf single-sided fiber of 33 dtex 26 filaments was produced in the same manner as in Example 1 to obtain a fabric. The physical properties and evaluation results of the obtained fabric are shown in Tables 2 and 3. It was a good fabric.

Example 5

A nylon 6 circular cross section fiber of 22 dtex 20 filaments was used for warp, and the discharge hole shape of the spinneret (Fig. 3 (c), the width of the slit: 0.07 mm, the ratio of the length of the slit: i / j = 5/2) was used. Except for the change, a nylon 6 flat 10-leaf cross-section fiber of 33 dtex 26 filaments was produced in the same manner as in Example 1 to obtain a fabric. The physical properties and evaluation results of the obtained fabric are shown in Tables 2 and 3. It was a good fabric.

Example 6

22dtex 20 in the same manner as in Example 1 except that the nylon 6 circular cross-section fiber of 22dtex 20 filament was used for warp, the number of filaments of nylon 6 flat 8-leaf single-sided fiber was changed to 20, and the total fineness was 22dtex. Nylon 6 flat 8-leaf cross-section fibers of filaments were made to obtain a fabric. The physical properties and evaluation results of the obtained fabric are shown in Tables 2 and 3. It was a good fabric.

Example 7

A nylon 6 circular cross section fiber of 22 dtex 20 filaments was used for warp, the number of filaments of the nylon 6 flat 8 leaf cross section fiber was changed to 40, and the total fineness was 44 dtex. Nylon 6 flat 8-leaf cross-section fibers of filaments were made to obtain a fabric. The physical properties and evaluation results of the obtained fabric are shown in Tables 2 and 3. It was a good fabric.

Example 8

22dtex 12 in the same manner as in Example 1 except that the nylon 6 circular cross-section fiber of 22 dtex 20 filaments was used for warp, the number of filaments of the nylon 6 flat 8-leaf single-sided fiber was changed to 12, and the total fineness was 22 dtex. Nylon 6 flat 8-leaf cross-section fibers of filaments were made to obtain a fabric. The physical properties and evaluation results of the obtained fabric are shown in Tables 2 and 3. It was a good fabric.

Example 9

A nylon 6 circular cross section fiber of 22 dtex 20 filaments was used for warp, the number of filaments of nylon 6 flat 8 leaf cross section fiber was changed to 58, and the total fineness was 44 dtex. Nylon 6 flat 8-leaf cross-section fibers of filaments were made to obtain a fabric. The physical properties and evaluation results of the obtained fabric are shown in Tables 2 and 3. It was a good fabric.

Example 10

11dtex 8 was prepared in the same manner as in Example 1 except that the nylon 6 circular cross-section fiber of 22 dtex 20 filaments was used for warp, the number of filaments of the nylon 6 flat 8-leaf single-sided fiber was changed to 8, and the total fineness was 11 dtex. Nylon 6 flat 8-leaf cross-section fibers of filaments were made to obtain a fabric. The physical properties and evaluation results of the obtained fabric are shown in Tables 2 and 3. It was a good fabric.

Example 11

A fabric was obtained in the same manner as in Example 1 except that calendering (processing conditions: cylinder processing, heating roll surface temperature 180 ° C., heating roll weighting 147 kN, cloth running speed 20 m / min) was performed once on one side of the fabric. The physical properties and evaluation results of the obtained fabric are shown in Tables 2 and 3. It was a good fabric.

Example 12

Nylon 6 flat cross-section fiber of 22 dtex 20 filament was used for warp, and nylon 6 flat 8 leaf single-sided fiber of 33 dtex 26 filament was produced in the same manner as in Example 1 for weft yarn. The fabric was obtained in the same manner as in Example 1 except that the warp density was set at 220 warps density / 2.54 cm and the weft density was set at 160 warps / 2.54 cm. The physical properties and evaluation results of the obtained fabric are shown in Tables 2 and 3. It was a good fabric.

Example 13

A fabric was obtained in the same manner as in Example 1 except that the ripstop taffeta structure was used. Table 2 shows the physical properties and evaluation results of the obtained fabric. It was a good fabric.

Example 14

A fabric was obtained in the same manner as in Example 1 except that the heating roll weight was 74 kN in calendering. The physical properties and evaluation results of the obtained fabric are shown in Tables 2 and 3. Although the calendar was weak and it was inferior to Example 1 by glossiness and a fall omission evaluation, the favorable fabric was obtained.

Example 15

In the same manner as in Example 1, nylon 6 flat 8-leaf cross-section fiber obtained by preparing nylon 6 flat 8-leaf cross-section fiber of 33dtex 26 filament was used for warp, and nylon 6 circular cross-section fiber of 22dtex 20 filament was used for weft. The fabric was obtained in the same manner as in Example 1 except that the warp density was set at 190 warp densities / 2.54 cm and the weft density was set at 160 warps / 2.54 cm. The physical properties and evaluation results of the obtained fabric are shown in Tables 2 and 3. It was a good fabric.

Example 16

Nylon 6 flat 8 leaf single-sided fibers obtained by preparing nylon 6 flat 8 leaf single-sided fibers of 33 dtex 26 filaments in the same manner as in Example 1 were used for warp and weft, 190 warp densities / 2.54 cm and 135 weft densities. The fabric was obtained by the method similar to Example 1 except having set to /2.54 cm and knit into the flat structure. The physical properties and evaluation results of the obtained fabric are shown in Tables 2 and 3. It was a good fabric.

Comparative Example 1

A fabric was obtained in the same manner as in Example 1 except that a nylon 6 circular cross-section fiber of 22 dtex 20 filaments was used for the warp and a circular cross-section polyamide fiber of 22 dtex 20 fil was used for the weft. The physical properties and evaluation results of the obtained fabric are shown in Tables 2 and 3. In particular, the obtained fabrics used circular cross-section polyamide fibers, so that even after calendering, the overlap between the filaments was small and the compression state was not good, resulting in poor air permeability and inferior down evaluation.

Comparative Example 2

A nylon 6 circular cross section fiber of 22 dtex 20 filaments was used for warp, and changed into a spinneret having a Y-shaped discharge hole (Fig. 4 (a), width of slit: 0.07 mm, length of slit k: 0.5 mm). A nylon 6 Y sectional fiber of 33 dtex 24 filaments was prepared in the same manner as in Example 1 except that the fabric was obtained. The physical properties and evaluation results of the obtained fabric are shown in Tables 2 and 3. The obtained fabric was greatly reduced in air permeability after 50 washes, and was inferior to the down fall evaluation. In addition, the glossiness is shiny with respect to the glossiness, and the obtained fabric is not only shiny but also has a stripe feeling, and no elegant and elegant gloss fabric is obtained.

Comparative Example 3

22 dtex 20 filament nylon 6 cross-section fiber is used for warp and changed into spinneret having cross-shaped discharge hole (Fig. 4 (b), width of slit: 0.07mm, length of slit l: 0.5mm) A nylon 6 cross sectional fiber of 33 dtex 24 filaments was manufactured in the same manner as in Example 1, except that a fabric was obtained. The physical properties and evaluation results of the obtained fabric are shown in Tables 2 and 3. As in Comparative Example 2, the obtained fabric is significantly reduced in air permeability after washing 50 times and is inferior in down-exhaust evaluation, and has a shiny luster for glossiness, and the obtained fabric is not only shiny but also striped. No noble gloss fabric was obtained.

[Comparative Example 4]

A nylon 6 flat 8 leaf cross section having 33 dtex 26 filaments and a flatness (F) of 1.3 in the same manner as in Example 1, except that nylon 6 circular cross-section fibers of 22 dtex 20 filaments were used for warp, and nylon 6 having a relative viscosity of 2.5 was used. Fibers were prepared to obtain a fabric. The physical properties and evaluation results of the obtained fabric are shown in Tables 2 and 3. The flatness (W) was also low, and the glossiness was insufficient, resulting in inferior air permeability after 50 washes and a slight inferior down evaluation.

[Comparative Example 5]

33 dtex 26 filament and flatness (F) in the same manner as in Example 1, except that nylon 6 circular cross-section fiber of 22 dtex 20 filament was used for warp, nylon 6 having a relative viscosity of 4.0 was used, and the spinning temperature was changed to 275 ° C. A nylon 6 flat 8 leaf single-sided fiber of 3.5 was prepared to obtain a fabric. The physical properties and evaluation results of the obtained fabric are shown in Tables 2 and 3. Because of the high flatness (W), the fabric became highly shiny.

Comparative Example 6

The nylon 6 circular cross section fiber of 22 dtex 20 filament was used for a warp, and the shape of the discharge hole of the spinneret was changed (FIG. 4 (c). Width of a slit: 0.07 mm, ratio of the length of a slit: m / n = 5 /) 2) A nylon 6 flat 12 leaf single-sided fiber of 33 dtex 26 filaments was prepared in the same manner as in Example 1, to obtain a fabric. The physical properties and evaluation results of the obtained fabric are shown in Tables 2 and 3. Since it was close to the circular cross section, the air permeability after 50 washes increased, and a mild glossiness was not obtained other than inferior down omission evaluation.

Comparative Example 7

Nylon 6 of 22dtex 5 filament was obtained in the same manner as in Example 1 except that the nylon 6 annular cross-section fiber of 22 dtex 20 filaments was used for warp, the discharge hole number of the spinneret was changed to 5, and the total fineness was 22 dtex. Flat 8-leaf single-sided fibers were made to obtain a fabric. The physical properties and evaluation results of the obtained fabric are shown in Tables 2 and 3. Since the short fiber fineness was thick, sufficient results were not obtained in the down omission evaluation.

Comparative Example 8

A fabric was obtained in the same manner as in Example 1 except that the cover factor was set at 976. The physical properties and evaluation results of the obtained fabric are shown in Tables 2 and 3. Because of the low density, the initial air permeability was inferior, and the down omission evaluation was inferior.

Comparative Example 9

A fabric was obtained in the same manner as in Example 1 except that calendering was not performed on the fabric. The physical properties and evaluation results of the obtained fabric are shown in Tables 2 and 3. Lack of overlap of filaments became inferior to down omission evaluation.

As is apparent from the results of Tables 2 and 3, the fabric according to the embodiment of the present invention has a high strength by keeping the fiber open flat, and also has a large number of lobes, which makes it easy to constrain the movement of polyamide short fibers, and calendering By compression-fixing, the irregular fibers of the short fibers were overlapped and overlapped in a state where there were few voids, so the air permeability was excellent, and the fabric could be prevented from falling down. In addition, since the cross section of the short fibers constituting the fabric had moderate irregularities, the surface of the fabric was uniformly smoothed by calendering to obtain an elegant luster with a sense of quality. By having the outstanding characteristic, it becomes possible to provide cloth, such as downwear, a down jacket, and sportswear, for example.

The fabric of the present invention is a lightweight, thin fabric, and is excellent in high strength, low breathability, and excellent glossiness, and thus can be suitably used for fabrics such as down wear, down jacket, and sports wear.

1 to 3: Polyamide short fibers located on the fabric surface after calendering
4 ~ 6: Polyamide short fibers not located on the fabric surface
A: longest line segment connecting any two points of the convex vertices of the flat multi-lobed type
B: A line segment parallel to the line segment A and composed of a tangent line containing the outermost vertex (an angle formed by neighboring sides of an angle of 90 °).
C: Line segment connecting the vertices of neighboring convex parts in the largest unevenness formed by the flat multileaf type.
D: Repair line which fell in line segment C connecting between the low point of the concave part pinched by the convex part, and the apex of the convex part.
e: Length of the slit of the discharge hole of the flat 8-lobed shape used in Example 1
f: Length of the slit of the discharge hole of the flat 8-lobed shape used in Example 1
g: Length of the slit of the discharge hole of the flat 6-lobed shape used in Example 4
h: Length of the slit of the discharge hole of the flat 6-lobed shape used in Example 4
i: Length of the slit of the flat 10-lobed discharge hole used in Example 5
j: Length of the slit of the discharge hole of the flat 10-lobed shape used in Example 5
k: Slit length of Y-shaped discharge hole used in Comparative Example 2
l: Slit length of the cross-shaped discharge hole used in Comparative Example 3
m: Length of the slit of the discharge hole of the flat 12 leaf shape used by the comparative example 6
n: Length of the slit of the discharge hole of the flat 12 shape used by the comparative example 6
Area O: the area where the convex portions of the short fibers adjacent to the concave portions of the short fibers overlap each other
Area X: An area where the concave portions of the short fibers and the concave portions of adjacent short fibers overlap with each other

Claims (19)

As a woven fabric with calendering on one or both sides,
The polyamide fibers constituting the warp or / and weft of the fabric after calendering have a short fiber fineness of 0.5 to 2.5 dtex, a total fineness of 5 to 50 dtex, and the cross-sectional shape of the single fiber is a flat multi-lobed shape having eight blades. The longest line segment connecting any two points of the flat multi-lobed convex apex is a line segment A (the length of which is α), a line parallel to the line segment A, and including the outermost vertex. The flatness (W) (α / β) represented by another line segment B (the length of which is β) of the circumscribed quadrangle (the angle of the angle of the neighboring side is 90 °) composed of tangent lines is 1.5 to 3.0. And a cover factor of 1200 to 2500 fabrics. The method of claim 1,
The polyamide fiber used for the fabric before calendering has a short fiber fineness of 0.4 to 2.2 dtex, a total fine fiber of 4 to 44 dtex, and the cross-sectional shape of the short fiber is a flat multi-lobed with 8 lobes, and the flat multi-lobed convex. A circumscribed quadrangle consisting of a tangent of the longest line segment A connecting any two of the vertices a, the line parallel to the line segment A, and the outermost vertex (with neighboring sides). The angle of the constituent angle is b, the length of the other line segment B of 90 °), and the length of the line segment C connecting between the vertices of the adjacent convex portions at the largest unevenness formed by the flat multileaf shape. c is a polyamide fiber which satisfies the following equation simultaneously when d is set to the length of the waterline D lowered on the line segment C connecting between the bottom of the concave portion sandwiched between the convex portions and the apex of the convex portion. Fabric characterized in that.
Flatness (F) (a / b) = 1.5 to 3.0
Deformation degree (F) (c / d) = 1.0 to 8.0 The method according to claim 1 or 2,
Tear strength is 5.0N or more, the initial air permeability of the fabric, characterized in that less than 1.0cc / ㎠ / s. The method according to claim 1 or 2,
The air-permeability after 50 washes is 1.0 cc / cm 2 / s or less. The method according to claim 1 or 2,
The difference between the initial air permeability and the air permeability after 50 washes is 0.4 cc / cm 2 / s or less. The sewing product which used the fabric of Claim 1 or 2 for at least one part. The down shell which used the fabric of Claim 1 or 2 for at least one part. The method of claim 3, wherein
The air-permeability after 50 washes is 1.0 cc / cm 2 / s or less. The method of claim 8,
The difference between the initial air permeability and the air permeability after 50 washes is 0.4 cc / cm 2 / s or less. The fabric according to claim 3, wherein at least part of the fabric is used. The sewing product which used the fabric of Claim 8 for at least one part. The sewing product which used the fabric of Claim 9 for at least one part. The down shell which used the fabric of Claim 3 for at least one part. The down shell which used the fabric of Claim 8 for at least one part. The down shell which used the fabric of Claim 9 for at least one part. The down jacket which used the fabric of Claim 1 or 2 for at least one part. The down jacket which used the fabric of Claim 3 for at least one part. The down jacket which used at least one part of the fabric of Claim 8. The down jacket which used at least one part of the fabric of Claim 9.

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