KR930008385B1 - Manufacturing method of warp elasticity woven - Google Patents

Abstract

weaving the fabric, using the warp yarn of themmoplastic synthetic filament false-twisted yarn, whose stretchability is 28-48 %, stretch recovery rate is 68-100 %, shrinking rate in hot water is 30-52 % and the torque number is 30- 130 ea./m, and the weft yarn so that the warp yarn number (N) per inch of the reed is 940 < N x root D1 < 1650 (where D1 is the denier of the warp yarn), the weft yarn number (n) per inch of the weft yarns is 520 < n x root D2 < 960 (where D2 is the denier of the weft yarn), and D2 is D1 x 0.70 < D2 < D1 x 1.25; heat treating; and shrinking the warp yarn so that the condition after final-setting is 32 < n1-n/n x 100 < 68 (where n1 is the number of weft yarns per inch after final-setting.

Description

Method of manufacturing stretch fabric

The present invention relates to a method for producing an inclined stretch fabric having good elasticity and surface quality by producing the warp yarn density, fineness, and shrinkage condition of the present invention using stretchable twisted yarn.

More specifically, the present invention is to provide a method of manufacturing a warp stretch fabric having a smooth surface, by expressing elasticity by using thermoplastic synthetic filament twisted fabric, while preventing wrinkles on the fabric surface caused by the torque of the twisted fabric. .

Conventionally, a method for obtaining a stretchable fabric is obtained by weaving a coated elastic yarn using a warp yarn and then refining and shrinking or by twisting, heat-setting, and decomposing using a thermoplastic synthetic fiber filament yarn, followed by secondary twisting in the disintegrating direction. There has been proposed a method of refining and shrinking by using a torque stretchable yarn as a slope.

However, the method of using the coated elastic yarn shows excellent elasticity, but the elastic yarn itself is expensive and requires a covering process, which leads to troublesome management, and the method of using the flexible elastic yarn is also flexible. Excellent but there was a problem that the surface quality is degraded.

In order to solve the problems described above, the present invention uses a thermoplastic synthetic fiber filament false twist fabric as a warp fabric, and then weaves the warp fabric by shrinking the warp to become a condition after the final set of the present invention after weaving with the warp and wish density of the present invention. Its purpose is to produce inexpensive stretchable fabrics with good wrinkles, irregularities and good surface quality and good productivity.

Hereinafter, the present invention will be described in detail.

Thermoplastic synthetic fiber filament false twist used in the present invention has such properties as 28-48% stretch, 68-100% stretch recovery, 30-52% heat shrinkage, 30-130 torque / m The number of warp yarns per inch of body N is 940 < 〈1650 (D ₁ : gradient fineness), and the number of types n per weft inch is 520 〈960 (D ₂ : weft island) and weft island D ₂ after weaving under the condition that D ₁ × 0.70 <D ₂ 〈D ₁ × 1.25 A stretchable fabric was produced by shrinking to <68 (n ₁ : number of weft copies per inch after the final set).

Where the slope density Is less than 940 or weft density If the value of is smaller than 520, slippage occurs at the inclined and weft tissue points. If the value of is greater than 1650, weaving becomes poor due to excessive density. When the value of is greater than 960, the shrinkage ratio of the warp becomes smaller, resulting in poor elasticity.

In addition, the weft fineness is good is small to increase the elasticity of the radial weft fineness D ₂ is preferably not more than ₁ × D 1.25. However, if the weft fineness D ₂ is smaller than D ₁ × 0.70, the weft yarn is unbalanced and the fabric surface is poor.

Even if the above conditions are satisfied, the condition after final set is 32 < <68 must be satisfied.

When smaller than 32, elasticity is poor, and 32 < When it is larger than 68, the elasticity is excellent, but wrinkled irregularities are generated on the fabric surface.

In addition, the thermoplastic synthetic fiber bitumen used in the present invention cannot use a normal bitumen because it is required to have high elasticity, elastic recovery rate and high heat shrinkage rate.

It is natural that the elastic material needs high elasticity due to the characteristics of the material used for the elastic fabric. In order to obtain a high elastic recovery rate, the reason is that it is not suitable as an elastic fabric if the elastic recovery rate is poor even if the elasticity is good.

In other words, it is 28 ~ 48% elasticity, 68 ~ 100% elasticity recovery rate, 68 ~ 100% elasticity recovery rate, and 30 ~ heat shrinkage rate in the manufacture of low-stretch fabrics with excellent productivity and high quality while providing excellent elasticity and surface quality. The thermoplastic synthetic fiber filament flammable fabric with 52% and 30 ~ 130 torque / m of physical properties is used as a slope, and the number of slopes N per body inch is 940 < <1650, and the number of types n per weft yarn is 520 < 〈960 and weft fineness D ₁ × 0.70 〈D ₂ 〈D ₁ × 1.25 (D ₁ : gradient fineness) It is a feature of the present invention to shrink the warp such that &lt; 68 (n ₁ : number of weft copies per inch after the final set).

The measurement method of the characteristic values mentioned in the present invention is according to the test method of the synthetic fiber filament stretch yarn of the Korean industrial standard, the elasticity is KS K 0508 5.7, the elastic elongation is C method, the elastic recovery rate is KS K 0508 5.8, the heat shrinkage rate is The KS K 0508 5.10A method is applied, and the torque is measured by applying a load of 1 / 100g per denier at the folded point of the processed yarn sample in half and fixing the combined ends, and the twisting by natural rotation stops. After standing to measure the number of twists per 25cm of the sample containing the twist was converted to the number of twists per 1m was taken as the torque value.

Hereinafter, the present invention will be described with reference to Examples.

However, the present invention is not limited to the examples.

Example 1

Ramp 150 new construction work used in the present invention is made of 89 inclined number per inch of body, and weaved into twill structure using 60 filament type of weave with polyester filament flammable fabrication work 150d. After 40 minutes of hot water treatment at 100 ℃, a stretchable fabric with 92 weft densities per inch after final set was produced. When the 30cm × 5cm sample was loaded at 1.5Kg, the elasticity was 48%. The surface of the Twill Line was also clearly visible and there was no slip between tissue points.

Example 2

100d new construction work used in the present invention is made of 132 inclined yarns per inch of body, and weaving into plain weaves using 88 filaments per inch of polyester filament flammable fabrication machine with 100d of weft yarn. After 30 minutes of treatment, a stretch fabric was produced with 122 weft densities per inch after the final set. As a result, when the 30cm × 5cm sample was loaded with 1.5Kg, 34% of the elastic elongation was good and the surface quality was good. There was no slip between tissue points.

Comparative Example 1

It is the same as the warp yarn as in Example 1, using ordinary polyester filament flammable 150d having the properties of 19% elasticity of the ramp, 76% elastic recovery rate, 21% heat shrinkage rate, and 54 torques / m. After weaving, hot water treatment was conducted to prepare a fabric having a weft density of 70 yarns per inch. The result was a poor elasticity of 13% in the longitudinal direction when 1.5Kg was applied to a 30cm × 5cm sample.

Comparative Example 2

Ramps 100 new construction work used in the present invention is 132 inclined number per inch of body and weft fineness D ₂ 〉 D ₁ × 1.25 (D ₁ : inclined fineness) 60 types of heads per inch using 150d polyester filament After weaving into plain weave, treated with hot water at 80 ~ 100 ℃ for 40 minutes to produce 72 weft density per inch after the final set. When 15Kg load was applied to 30cm × 5cm sample, 15% of radial direction Elongation exhibited elongation was poor.

Comparative Example 3

Ramp 150 new construction work used in the present invention is the number of 83 inclined number per inch of the body, and weft type polyester head per inch 520 / After weaving into twill, we made 50 smaller pieces and treated them with hot water at 80 ~ 100 ℃ for 40 minutes to make a fabric with 86 weft density per inch after the final set. When loading 1.5Kg on 30cm × 5cm sample, The elastic elongation was 62%, showing good elasticity but slipping between tissue points.

Claims (1)

Use a synthetic synthetic fiber filament flammable fabric with a property of 28 ~ 48% elasticity, 68 ~ 100% elastic recovery rate, 30 ~ 52% heat shrinkage rate and 30 ~ 130 torque / m as a slope, and the number of inclined number N per body 940 〈 〈1650 (D ₁ : gradient fineness) and the number of types n per weft weft is 520 〈960 (D ₂ : weft island degree) and weft island degree D ₂ are woven under the condition of D ₁ × 0.70 <D ₂ 〈D ₁ × 1.25, and then heat-treated, and the condition after final set is 32 < A method for producing a stretchable fabric, characterized by shrinking the warp so as to be <68 (n ₁ : number of wefts per inch after the final set).