LOW-AIR-PERMEABILITY FABRIC AND TEXTILE PRODUCT

Abstract

The invention addresses the problem of providing a low-breathability woven fabric and a textile product that are excellent not only in downproofness but also in stretchability. As a means for resolution, a low-breathability woven fabric having a breathability of 1.0 cc/sec/cm.sup.2 or less is configured to include a stretch fiber.

Claims

1. A low-breathability woven fabric having a breathability of 1.0 cm.sup.3/cm.sup.2.Math.s or less, characterized in that the low-breathability woven fabric includes a stretch fiber.

2. The low-breathability woven fabric according to claim 1, wherein the woven fabric has an elongation of 17.5% or more in the warp direction or the weft direction.

3. The low-breathability woven fabric according to claim 1, wherein in the woven fabric, the amount of down leakage in accordance with GB T 12705.1-2009 Textile, Methods of Testing the Down-Proof Properties of Fabrics, Part 1: Rubbing Test, is 50 pieces or less.

4. The low-breathability woven fabric according to claim 1, wherein the stretch fiber is a polyurethane fiber, a conjugate fiber made of two components joined in a side-by-side manner or an eccentric sheath-core manner, a false-twist crimped yarn, or a polytrimethylene terephthalate fiber.

5. The low-breathability woven fabric according to claim 1, wherein the woven fabric has a warp cover factor within a range of 800 to 1,500 and a weft cover factor within a range of 700 to 1,200, the warp cover factor (warp CF) and the weft cover factor (weft CF) being defined by the following formulas: $\text{warp}\text{CF}={\left(\text{DWp}/1.1\right)}^{1/2}\times \text{MWp}$ $\text{weft}\text{CF}={\left(\text{DWf}/1.1\right)}^{1/2}\times \text{MWf}$ [DWp is the warp total fineness (dtex), MWp is the warp weaving density (yarns/2.54 cm), DWf is the weft total fineness (dtex), and MWf is the weft weaving density (yarns/2.54 cm)].

6. The low-breathability woven fabric according to claim 1, wherein the woven fabric has a plain structure or a ripstop taffeta structure.

7. The low-breathability woven fabric according to claim 1, wherein the woven fabric is given water repellent processing.

8. The low-breathability woven fabric according to claim 1, wherein the woven fabric is not given a waterproof coating or not laminated.

9. The low-breathability woven fabric according to claim 1, wherein the woven fabric is not calendered.

10. The low-breathability woven fabric according to claim 1, wherein the woven fabric has a tear strength of 7 N or more in the warp direction or the weft direction, the tear strength being measured in accordance with JIS L 1096-2010 8.17, D Method.

11. The low-breathability woven fabric according to claim 1, wherein the woven fabric has a slip resistance of 3 mm or less, the slip resistance being measured in accordance with JIS L 1096-2010 8.23, B Method (load: 117.7 N).

12. The low-breathability woven fabric according to claim 1, wherein in the woven fabric, the Rotating Box IDFL 20-1 (Modified FTMS 191-5530) is 5 (0-5 particles).

13. A textile product comprising the low-breathability woven fabric according to claim 1 and being selected from the group consisting of downwear, down jackets, comforters, sleeping bags, and sportswear.

14. The low-breathability woven fabric according to claim 2, wherein in the woven fabric, the amount of down leakage in accordance with GB T 12705.1-2009 Textile, Methods of Testing the Down-Proof Properties of Fabrics, Part 1: Rubbing Test, is 50 pieces or less.

Description

EXAMPLES

[0046] Next, examples of the invention and comparative examples will be described in detail, but the invention is not limited thereto. Incidentally, measurement items were measured by the following methods.

Cover Factor

[0047] The cover factor CF of a woven fabric was calculated by the following formulas.

[00005]$\text{Warp CF =}{\left(\text{DWp}/1.1\right)}^{1/2}\times \text{MWp}$

[00006]$\text{Weft CF =}{\left(\text{DWf}/1.1\right)}^{1/2}\times \text{MWf}$

[DWp is the warp total fineness (dtex), MWp is the warp weaving density (yarns/2.54 cm), DWf is the weft total fineness (dtex), and MWf is the weft weaving density (yarns/2.54 cm).]

Elongation of Woven Fabric

[0048] The elongation of a woven fabric was measured in accordance with JIS L1096-2010 8.16, B Method.

Tear Strength of Woven Fabric

[0049] Tear strength (N) was measured in accordance with JIS L1096-2010 8.17, D Method.

Slip Resistance of Woven Fabric

[0050] The slip resistance (mm) of a woven fabric was measured in accordance with JIS L 1096-2010 8.23, B Method, load: 117.7 N (mm).

Down Leakage Through Woven Fabric 1

[0051] Measurement was performed in accordance with GB T 12705.1-2009 Textile, Methods of Testing the Down-Proof Properties of Fabrics, Part 1: Rubbing Test.

Down Leakage Through Woven Fabric 2

[0052] 5 Particles) was measured in accordance with Rotating Box IDFL 20-1 (Modified FTMS191-5530).

Weight Per Unit of Woven Fabric

[0053] Weight per unit (g/m.sup.2) was measured in accordance with JIS L1096-2010 8.3.

Water Repellency of Woven Fabric

[0054] Water repellency (grade) was measured in accordance with JIS L1092-2009 7.2, Test for Resistance to Surface Wetting (Spray Test).

Breathability of Woven Fabric

[0055] Breathability (cm.sup.3/cm.sup.2.Math.s) was measured in accordance with JIS L1096-2010 8.26.1, A Method (Frazier Method). Incidentally, the number of samples was 5, and the average was determined.

Example 1

[0056] Using a semi-dull polyethylene terephthalate multifilament false-twist crimped yarn (total fineness: 22 dtex/72 fil, single fiber fineness: 0.31 dtex) as the warp and a commingled yarn obtained by interlacing a semi-dull polyethylene terephthalate multifilament false-twist crimped yarn (total fineness: 22 dtex/72 fil, single fiber fineness: 0.31 dtex) and a polyurethane fiber (total fineness: 22 dtex/1 fil, elastic fiber) drawn to 2.6 times the original length as the weft, a plain woven fabric was woven using a water jet loom weaving machine. The woven fabric was then dyed with a disperse dye at 130° C. × 30 minutes, and subjected to the following water repellent processing. In the water repellent processing, the following processing agent was used, and the liquid was squeezed out at a pick-up rate of 80%, followed by drying at 130° C. for 3 minutes and then a heat treatment at 170° C. for 45 seconds.

Processing Agent Composition

[0057] Fluorine-free water repellent: 5.0 wt% [0058] (Neoseed NR-7080 manufactured by Nichika Chemical Co., Ltd., hydrocarbon-based compound) [0059] Melamine resin: 0.3 wt% [0060] (SUMITEX Resin M-3 manufactured by Sumitomo Chemical Co., Ltd.) [0061] Catalyst: 0.3 wt% [0062] (SUMITEX Accelerator ACX manufactured by Sumitomo Chemical Co., Ltd.) [0063] Water: 94.4 wt%

[0064] In the woven fabric thus obtained, the weight per unit was 68 g/m.sup.2, the warp density was 282 yarns/2.54 cm, the weft density was 206 yarns/2.54 cm, the cover factors were warp: 1,261, weft: 1,084, and total: 2,345, the warp elongation was 1%, the weft elongation was 23%, the water repellency grade was 4, the breathability was 0.5 cm.sup.3/cm.sup.2.Math.s, the tear strength was 7 N or more both in warp and weft, the slip resistance was 3 mm or less, the amount of down leakage in accordance with GB T 12705.1-2009 Textile, Methods of Testing the Down-Proof Properties of Fabrics, Part 1: Rubbing Test, was 50 pieces or less, and the Rotating Box IDFL 20-1 (Modified FTMS 191-5530) was 5 (0-5 Particles). That is, it was a low-breathability woven fabric excellent not only in downproofness but also in stretchability.

Example 2

[0065] Using a semi-dull polyamide multifilament false-twist crimped yarn (total fineness: 22 dtex/48 fil, single fiber fineness: 0.46 dtex) as the warp and a commingled yarn obtained by interlacing a semi-dull polyamide multifilament false-twist crimped yarn (total fineness: 22 dtex/48 fil, single fiber fineness: 0.46 dtex) and a polyurethane fiber (total fineness: 22 dtex/1 fil, elastic fiber) drawn to 2.6 times the original length as the weft, a plain woven fabric was woven using a water jet loom weaving machine. The woven fabric was then dyed with an acid dye at 98° C. × 30 minutes, followed by water repellent processing in the same manner as in Example 1.

[0066] In the woven fabric thus obtained, the weight per unit was 59 g/m.sup.2, the warp density was 283 yarns/2.54 cm, the weft density was 193 yarns/2.54 cm, the cover factors were warp: 1,266, weft: 1,003, and total: 2,269, the warp elongation was 2%, the weft elongation was 26%, the water repellency grade was 4, the breathability was 0.6 cm.sup.3/cm.sup.2.Math.s, the tear strength was 10 N or more both in warp and weft, the slip resistance was 3 mm or less, the amount of down leakage in accordance with GB T 12705.1-2009 Textile, Methods of Testing the Down-Proof Properties of Fabrics, Part 1: Rubbing Test, was 50 pieces or less, and the Rotating Box IDFL 20-1 (Modified FTMS 191-5530) was 5 (0-5 Particles). That is, it was a low-breathability woven fabric excellent not only in downproofness but also in stretchability.

Example 3

[0067] Using a semi-dull polyethylene terephthalate multifilament false-twist crimped yarn (total fineness: 39 dtex/144 fil, single fiber fineness: 0.27 dtex) as the warp and a side-by-side conjugate fiber made of polyethylene terephthalate and polytrimethylene terephthalate (total fineness: 56 dtex/32 fil, single fiber fineness: 1.75 dtex) as the weft, a plain woven fabric was woven using a water jet loom weaving machine.

[0068] The woven fabric was then dyed with a disperse dye at 130° C. × 30 minutes, followed by water repellent processing in the same manner as in Example 1 and calendering.

[0069] In the woven fabric thus obtained, the weight per unit was 82 g/m.sup.2, the warp density was 230 yarns/2.54 cm, the weft density was 125 yarns/2.54 cm, the cover factors were warp: 1,361, weft: 884, and total: 2,245, the warp elongation was 1%, the weft elongation was 21%, the water repellency grade was 4, the breathability was 0.3 cm.sup.3/cm.sup.2.Math.s, the tear strength was 10 N or more both in warp and weft, the slip resistance was 3 mm or less, the amount of down leakage in accordance with GB T 12705.1-2009 Textile, Methods of Testing the Down-Proof Properties of Fabrics, Part 1: Rubbing Test, was 50 pieces or less, and the Rotating Box IDFL 20-1 (Modified FTMS 191-5530) was 5 (0-5 Particles). That is, it was a low-breathability woven fabric excellent not only in downproofness but also in stretchability.

Example 4

[0070] Using a semi-dull polyethylene terephthalate multifilament false-twist crimped yarn (total fineness: 56 dtex/72 fil, single fiber fineness: 0.78 dtex) as the warp and a side-by-side conjugate fiber made of polyethylene terephthalate and polytrimethylene terephthalate (total fineness: 56 dtex/32 fil, single fiber fineness: 1.75 dtex) as the weft, a plain woven fabric was woven using a water jet loom weaving machine. The woven fabric was then dyed with a disperse dye at 130° C. × 30 minutes, followed by water repellent processing in the same manner as in Example 1 and calendering.

[0071] In the woven fabric thus obtained, the weight per unit was 94 g/m.sup.2, the warp density was 200 yarns/2.54 cm, the weft density was 129 yarns/2.54 cm, the cover factors were warp: 1,414, weft: 912, and total: 2,326, the warp elongation was 2%, the weft elongation was 20%, the water repellency grade was 4, the breathability was 0.5 cm.sup.3/cm.sup.2.Math.s, the tear strength was 10 N or more both in warp and weft, the slip resistance was 3 mm or less, the amount of down leakage in accordance with GB T 12705.1-2009 Textile, Methods of Testing the Down-Proof Properties of Fabrics, Part 1: Rubbing Test, was 50 pieces or less, and the Rotating Box IDFL 20-1 (Modified FTMS 191-5530) was 5 (0-5 Particles). That is, it was a low-breathability woven fabric excellent not only in downproofness but also in stretchability.

Example 5

[0072] Using a bright polyethylene terephthalate multifilament false-twist crimped yarn (total fineness: 56 dtex/144 fil, single fiber fineness: 0.39 dtex) as the warp and a side-by-side conjugate fiber made of polyethylene terephthalate and polytrimethylene terephthalate (total fineness: 56 dtex/48 fil, single fiber fineness: 1.17 dtex) as the weft, a plain woven fabric was woven using a water jet loom weaving machine. The woven fabric was then dyed with a disperse dye at 130° C. × 30 minutes, followed by water repellent processing in the same manner as in Example 1.

[0073] In the woven fabric thus obtained, the weight per unit was 96 g/m.sup.2, the warp density was 204 yarns/2.54 cm, the weft density was 132 yarns/2.54 cm, the cover factors were warp: 1,442, weft: 933, and total: 2,375, the warp elongation was 0.2%, the weft elongation was 21%, the water repellency grade was 4, the breathability was 0.9 cm.sup.3/cm.sup.2.Math.s, the tear strength was 10 N or more both in warp and weft, the slip resistance was 3 mm or less, the amount of down leakage in accordance with GB T 12705.1-2009 Textile, Methods of Testing the Down-Proof Properties of Fabrics, Part 1: Rubbing Test, was 50 pieces or less, and the Rotating Box IDFL 20-1 (Modified FTMS 191-5530) was 5 (0-5 Particles). That is, it was a low-breathability woven fabric excellent not only in downproofness but also in stretchability.

Example 6

[0074] Using a semi-dull polyethylene terephthalate multifilament false-twist crimped yarn (total fineness: 22 dtex/72 fil) as the warp and a semi-dull polyethylene terephthalate multifilament false-twist crimped yarn (total fineness: 22 dtex/72 fil) as the weft, a plain woven fabric was woven using a water jet loom weaving machine. The woven fabric was then dyed with a disperse dye at 130° C. × 30 minutes, followed by water repellent processing in the same manner as in Example 1 and calendering.

[0075] In the woven fabric thus obtained, the weight per unit was 61 g/m.sup.2, the warp density was 242 yarns/2.54 cm, the weft density was 214 yarns/2.54 cm, the cover factors were warp: 1,082, weft: 957, and total: 2,039, the warp elongation was 1%, the weft elongation was 3%, the water repellency grade was 4, the breathability was 0.3 cm.sup.3/cm.sup.2.Math.s, the tear strength was 10 N or more both in warp and weft, the slip resistance was 3 mm or less, the amount of down leakage in accordance with GB T 12705.1-2009 Textile, Methods of Testing the Down-Proof Properties of Fabrics, Part 1: Rubbing Test, was 50 pieces or less, and the Rotating Box IDFL 20-1 (Modified FTMS 191-5530) was 5 (0-5 Particles). That is, it was a low-breathability woven fabric excellent in downproofness, but slightly inferior in stretchability.

Comparative Example 1

[0076] Using a semi-dull polyethylene terephthalate multifilament false-twist crimped yarn (total fineness: 56 dtex/72 fil) as the warp and a side-by-side conjugate fiber made of polyethylene terephthalate and polytrimethylene terephthalate (total fineness: 56 dtex/32 fil) as the weft, a plain woven fabric was woven using a water jet loom weaving machine. The woven fabric was then dyed with a disperse dye at 130° C. × 30 minutes, followed by water repellent processing in the same manner as in Example 1 and calendering.

[0077] In the woven fabric thus obtained, the weight per unit was 86 g/m.sup.2, the warp density was 149 yarns/2.54 cm, the weft density was 95 yarns/2.54 cm, the cover factors were warp: 1,053, weft: 672, and total: 1,725, the warp elongation was 1%, the weft elongation was 21%, the water repellency grade was 4, the breathability was 1.6 cm.sup.3/cm.sup.2.Math.s, the tear strength was 7 N or more both in warp and weft, the slip resistance was 3 mm or less, the amount of down leakage in accordance with GB T 12705.1-2009 Textile, Methods of Testing the Down-Proof Properties of Fabrics, Part 1: Rubbing Test, was 74 pieces, and the Rotating Box IDFL 20-1 (Modified FTMS 191-5530) was 3 (0-5 Particles). That is, it was a woven fabric excellent in stretchability, but inferior in downproofness.

INDUSTRIAL APPLICABILITY

[0078] According to the invention, a low-breathability woven fabric with reduced blowout of cotton and down and a textile product, which are excellent not only in downproofness but also in stretchability, are provided, and the industrial value thereof is extremely high.