JP2015001025A - Down escape-preventing fabric - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a down escape-preventing fabric which is used for clothing, bedding or the like including a filling material, and which is excellent in suppressing the blowing-off of the filling material from a seam in a quilting part or the like and excellent in feeling.SOLUTION: A down escape-preventing fabric is made of splittable conjugate fibers having a total fineness of 25-50 dtex. After elution or splitting treatment, a thin fineness is obtained such that a single fiber fineness is at least partly 1.0 dtex or less. Thereby, there is provided the down escape-preventing fabric which is so small in seam slippage as to be excellent in suppressing the blowing-off of a filling material, and which is excellent in feeling and light in weight.

Description

  The present invention relates to a fabric used for clothing or bedding that includes a filler, and relates to a fabric that suppresses blowing of the filler and has an excellent texture.

Conventionally, sewn products such as down jackets, sleeping bags, and futons that are used in winter or in cold regions are commercially available that are filled with fillers such as feathers and batting to improve cold resistance.
These products are required to have a low air permeability in order to prevent the feathers and batting from coming out. In order to obtain a fabric with low air permeability, a method of densifying the weave of the fabric and compressing the fibers by calendering to reduce the gap between yarns (Patent Document 1), the air permeability is controlled by resin coating. A fabric that prevents feathers and batting from coming off is known (Patent Document 2).
However, it is difficult to obtain a soft texture from a fabric that has been subjected to calendering or resin processing, and the surface feel of high-grade clothing represented by women's clothing cannot be obtained.
On the other hand, there is a method for producing a dyed woven fabric that has a good soft texture and a wind-proof function by reducing air permeability by using a mixture of polyester fiber and polyamide fiber, and can be used for a down jacket. Known (Patent Document 3). However, since the fabric described therein has a very dense structure with a cover factor of 3000 or more, the fabric weight is heavy, and it has been difficult to satisfy the characteristics of lightness required for recent down jackets.

JP-A-2005-48298 JP2011-21309 JP2004-60066

Various methods for reducing the air permeability in order to prevent the feathers from being blown out from the fabric have been studied for preventing the filling from being blown from the sewing product. There are many filling jets from seams. The present invention has found that a method of suppressing stitch deviation is effective in preventing filling jetting from the seam, and there is very little feather jetting from the seam, and the good texture and down which are required for luxury clothing An object of the present invention is to provide a feather slip-off preventing fabric having lightness required for a jacket.

In order to achieve the above object, the fabric of the present invention has the following constitution.
(1) A multi fiber having at least a part of single fiber fineness of 1.0 to 0.05 dtex obtained by partially eluting or dividing a split fiber type composite fiber having a total fineness of 25 to 50 dtex A feather slip-preventing fabric comprising a fabric using filament yarn as at least one of warp and weft, having a cover factor of 1500 or more and less than 3000, and a stitch deviation of 1.0 mm or less.
(2) The feather slip-preventing fabric according to (1) above, wherein the fabric has a basis weight of 100 g / m ² or less and an air permeability of 0.5 cc / cm ² · sec or less.
(3) The downfall prevention fabric according to (1) or (2) above, wherein the fabric is not calendered.
(4) The downfall prevention fabric according to (1) or (2), wherein the fabric is not resin-coated.

An object of the present invention is to provide a fabric that is used for clothing or bedding that includes a filler, and that is excellent in suppressing blowout of filler from seams such as quilted portions and excellent in texture.

Hereinafter, the present invention will be described in detail.
In the fabric of the present invention, in order to obtain a soft texture excellent in flexibility, it is preferable to use split fiber type composite fibers having a total fineness of 25 to 50 dtex for at least one of warp and weft. It is preferable to use a 35 decitex split fiber type composite fiber and finish it into a fabric having a cover factor of 1500 or more and less than 3000 from the viewpoint of achieving both the feather loss prevention performance required for a down jacket fabric and light weight. It is preferable to use a split fiber type composite fiber that becomes an ultrafine multifilament yarn having at least a part of single fiber fineness of 1.0 to 0.05 dtex by elution or splitting of the split fiber type composite fiber, Preferably, a soft texture with excellent flexibility can be obtained by setting at least some of the single fiber fineness to 0.5 to 0.05 dtex.
As the form of the composite fiber, polyester and polyamide are melt-spun at the stage of spinning, and the composite fiber that is composited can be mixed uniformly, and it is possible to obtain a modified cross-section ultrafine yarn that cannot be obtained by direct spinning after elution or splitting treatment. In view of this, a composite fiber that is melt-spun at the stage of spinning is preferable.
When the raw yarn is viewed in a horizontal cross section, polyamide is arranged in a star shape at the core and polyester is arranged at the sheath, or polyester is arranged in a star at the core and polyamide is arranged in the sheath. By adopting a form, it is possible to obtain an atypical yarn having an acute angle formed at the apex of the atypical portion that cannot be obtained by direct spinning after the elution or split fiber treatment, and it is more preferable because an effect of reducing the seam deviation due to the edge effect is obtained. .
As the resin component constituting the composite fiber, two or more kinds of resins can be selected, and examples thereof include nylon 6, nylon 66, polyethylene terephthalate, polytrimethylene terephthalate, polybutylene terephthalate, or a copolymer polyester thereof. And can be used without any particular limitation.
In the present invention, first, a green machine is woven using a composite fiber composed of polyester and polyamide as warp or / and weft of a woven fabric. Next, the raw machine is scoured and then subjected to elution or division. The treatment method is preferably liquid flow treatment because uniform splitting and shrinkage can be obtained.
Next, after dyeing with a liquid dyeing machine, it is preferably finished by setting with a pin tenter by dry heat, and finished as a fabric having a cover factor of 1500 or more and less than 3000, and the fabric has a stitch deviation of 1.0 mm or less and an air permeability of 0. It is preferable that the surface finish is 5 cc / cm ² · sec or less and the basis weight is 100 g / m ² or less.
A fabric having a cover factor of less than 1500 is liable to cause stitch deviation and is not preferable from the viewpoint of reducing the air permeability.
A fabric with a cover factor of 3000 or more is not problematic in terms of stitch misalignment and air permeability, but is a very high-density fabric, so it has a high weight per unit and is preferable as a fabric for preventing feather slippage that requires lightness such as down jacket use. Absent.
The fabric of the present invention does not require calendering or resin coating for the purpose of reducing air permeability, but may be embossed or calendered for the purpose of improving the design, and imparts water repellency and resistance. Water repellent finishing or resin coating may be performed for the purpose of improving water pressure.

(Evaluation method, measurement method)
[Filling balloon]
A seat cushion is prepared by filling a fabric of 50 cm in length and 40 cm in width with a weight per unit weight of 60 g / m ² as a filling material, and three stitches are put in the vertical direction by sewing to form a quilting portion. The sewing thread used was 100% # 50 Plume polyester manufactured by Fujix Corporation.
This was put in a tumble dryer together with 10 rubber tubes (specified for JISL1076 ICI pilling test), and after running for 1 hour, the number of feathers attached to the surface of the quilting part of the cushion was measured.
[Sliding resistance (seam misalignment)]
In accordance with the seam slip-off method B defined in JIS L 1096 (2010), the tensile load was 117.6 N. The smaller the value, the smaller the misalignment and the better.

[Breath rate]
It evaluated by the method based on the air permeability (fragile method) prescribed | regulated to JISL1096 (2010). The smaller the value, the better the amount of air flowing through the fabric.
[Cover factor]
According to JIS L 1096 (2010), the warp density and the weft density of the woven fabric were measured in a section of 2.54 cm.
The value of the cover factor was determined from the formula: cover factor (CF) = warp density × (warp fineness) ^1/2 + weft density × (weft fineness) ^1/2 .
[Fineness measurement]
The cross-section of the fabric was observed with a scanning electron microscope, and the single fiber fineness (average value) of the polyester fiber and the polyamide fiber was read from the cross-sectional sizes of 10 yarns.
[Example 1]
(1) Yarn making Polyamide as the core component, polyester as the sheath component, the core component has an 8-leaf star cross section, the surrounding sheath component is a fan shape, 33 dtex, 18 filament split type composite Fiber was obtained.
(2) Weaving The weft was 33 decitex and 18 filament split type composite fiber, and weaving was carried out with a water jet loom so that the weaving density was warp 170 / 2.54 cm and weft 150 / 2.54 cm.
(3) Dyeing process The obtained raw machine was continuously spread and scoured, and subsequently split using a flow dyeing machine, and then set with dry heat using a pin tenter. Subsequently, it dye | stained with the disperse dye using the liquid dyeing machine, and set to dry heat with the pin tenter, and finished to warp density 236 piece /2.54cm, latitude density 197 piece /2.54cm.
By splitting, the single fiber fineness after splitting was a fabric composed of multifilaments of 0.6 decitex polyamide, 1 filament, 0.16 decitex polyester, and 8 filaments.
Table 1 shows the evaluation results of the obtained fabric.
[Example 2]
(1) Threading Polyester as the core component, polyamide as the sheath component, the core component has an 8-leaf star cross section, and the surrounding sheath component is fan-shaped, 35 dtex, 18 filament split type composite Fiber was obtained.
(2) Weaving The weft was 35 decitex, 18 filament split fiber type composite fiber, and weaving was performed with a water jet loom so that the weaving density would be 175 warp / 2.54 cm and 155 weft / 2.54 cm.
(3) Dyeing process The obtained raw machine was continuously spread and scoured, and subsequently split using a flow dyeing machine, and then set with dry heat using a pin tenter. Next, using a liquid dyeing machine, 25% of a polyester component was eluted with a caustic soda solution to form a fabric made only of a polyamide component, dyed with an acid dye, and finished by setting with a pin tenter and dry heat.

The finished product had a warp density of 236 / 2.54 cm and a weft of 201 / 2.54 cm.
By elution treatment, all the polyester components were eluted, the total fineness was 26 dtex, the filament single fiber fineness was 0.18 dtex, and a fabric composed of 8-filament polyamide multifilaments. Table 1 shows the evaluation results of the obtained fabric.
[Comparative Example 1]
For the warp, 33 dtex and 26 filament nylon 6 were used and woven with a water jet loom so that the weaving density would be warp 170 / 2.54 cm and weft 150 / 2.54 cm.
The resulting raw machine is continuously spread and scoured and dried, then dyed, dried and set with an acid dye using a liquid dyeing machine, then coated and dried with a floating knife, and then set with a pin tenter and dry heat. Finished.
The finished product had a warp density of 178 pieces / 2.54 cm and a weft of 156 pieces / 2.54 cm.
Table 1 shows the evaluation results of the obtained fabric.
[Comparative Example 2]
(1) Spinning Polyamide is used as the core component, polyester is used as the sheath component, the core component has an 8-leaf star-shaped cross section, and the surrounding sheath component is a fan shape. 56 decitex, 18 filament split type composite Fiber was obtained.
(2) Weaving The weft was 56 decitex, 18 filament split type composite fiber, and weaving was carried out with a water jet loom so that the weaving density was warp 165 / 2.54 cm and weft 145 / 2.54 cm.
(3) Dyeing process The obtained raw machine was continuously spread and scoured, and subsequently split using a flow dyeing machine, and then set with dry heat using a pin tenter. Subsequently, it dye | stained with the disperse dye using a liquid-flow dyeing machine, and set it to dry heat with a pin tenter and finished.
The finished product had a warp density of 217 yarns / 2.54 cm and a weft of 185 yarns / 2.54 cm.
By splitting, the single fiber fineness after splitting was made of multifilaments of polyamide 1.3 decitex, 1 filament, polyester 0.24 decitex, 8 filament multifilament.
Table 1 shows the evaluation results of the obtained fabric.

As shown in Examples 1 and 2 in Table 1, the present invention is a fabric having a small seam deviation, and there is no blowout of the filler in the filler ejection test, and a light weight feathering prevention fabric having a basis weight of 100 g / m ² or less. I was able to get.

INDUSTRIAL APPLICABILITY The present invention is a cloth for clothing or bedding that contains a filling, and can be used for a cloth constituting a down jacket, a sleeping bag, a futon, and the like.

Claims (4)

A multifilament yarn having at least a part of a single fiber fineness of 1.0 to 0.05 dtex obtained by partially eluting or splitting a split fiber type composite fiber having a total fineness of 25 to 50 dtex A feather slip-preventing fabric comprising a fabric used for at least one of warp and weft, wherein the fabric has a cover factor of 1500 or more and less than 3000, and a stitch deviation of 1.0 mm or less. ^{2. The} feather slip-preventing fabric according to claim 1, wherein the fabric has a basis weight of 100 g / m ² or less and an air permeability of 0.5 cc / cm ² · sec or less. 3. The feather drop prevention fabric according to claim 1, wherein the fabric is not calendered. 3. The feather drop prevention fabric according to claim 1 or 2, wherein the fabric is not coated with a resin coating.