KR20100130719A - Highly elastic polyester fabric - Google Patents

Abstract

PURPOSE: A high resilience polyester fabric for rising workability is provided to reduce the used amount of the polyester Elastomer and reduce the manufacturing cost. CONSTITUTION: A polyester multi-filament yarn of 3000 denier is used as a slope. The polyester multi-filament yarn is formed with the twisting of a polyester monofilament yarn having low-melting point of four strands. The polyester elastomer monofilament yarn of 2700 denier and polyester multi-filament yarn is combined in the rate of 1 to 3. The combined polyester multi-filament yarn is used as the weft. The fabric is woven in the single beam with V longitudinal light.

Description

High elastic polyester fabric {HIGHLY ELASTIC POLYESTER FABRIC}

The present invention is composed of a polyester low-melting point yarns and polyester twisted yarns fused and covered at the intersection of the polyester multifilament yarns and polyester elastomer monofilament yarns are heat-sealed, the amount of high-cost and difficult to handle polyester elastomers is reduced The manufacturing cost is reduced and easy to manufacture, and a high elastic polyester fabric that can be widely used as interior fabrics and industrial fabrics, such as chair covers, beddings.

The rapid development of modern science and technology is based on the development of the material industry. Polymer materials have contributed to the development of human civilization due to their inherent functions such as light weight, corrosion resistance, molding processability and ease of mass production. For example, mesh fabrics having excellent breathability are widely applied to products such as shoes, bags, curtains, clothes, and cushioning materials for sheets.

In addition, sponges, urethane molded products, seat plate fixing plywood, leather and fabrics are used for seat cushion material composed of several subsidiary materials to provide a sense of elasticity and cushion to the user. The problem is that the process is complex and difficult to recycle environmentally when disposed.

Accordingly, if a cushion material for a seat can be manufactured using a highly elastic fabric as a material instead of a general fabric, the highly elastic fabric uniformly distributes body pressure to reduce fatigue, and accessories such as sponges, urethane molded articles, seat fixing plywood, etc. It is possible not only to manufacture the cushioning material for seats, but also to recycle the seat cushioning material, which is very advantageous to the environment.

Specifically, as a composite fiber composed of a crystalline thermoplastic elastomer and a crystalline thermoplastic polyester, Japanese Laid-Open Patent Publication No. 60-1404 discloses side-by-side non-elastic polyester mainly composed of block polyester, polyether and polybutylene terephthalate. A highly crimped composite fiber is disclosed that can be used in a side-by-side or eccentric sheath-core type to be well suited for outerwear and underwear. In addition, Japanese Patent Laid-Open No. 3-185116 discloses a composite spinning of an inelastic polyester of a polyester-based elastomer and a polyethylene terephthalate main body in a side by side type or a cis core type to facilitate card opening to a crimped fiber and stretchability. Eggplants are disclosed heat-adhesive composite fibers suitable for making nonwoven fabrics. Japanese Laid-Open Patent Publication No. 3-220316 also manufactures yarns having improved carding and spinning properties, in which a polyester-based elastomer is disposed on a sheath component and an inelastic polyester is disposed on a core component, and a thermally adhesive nonwoven fabric. A substantially concentric, sheath-core, heat-adhesive composite fiber is disclosed. In addition, Japanese Patent Application Laid-Open No. 2001-159052 discloses excellent elasticity and elasticity recovery by maintaining the stress at elongation and residual strain after repeated deformation in an appropriate range, and heat-sealing the elastomer fibers at the intersections of the knitted fabrics. An elastic knitted fabric is disclosed and suitable as a cushioning material.

Weaving the high elastic composite fibers described above with warp and weft yarns to form a high elastic fabric, and the high elastic fabric can be utilized for a wide range of applications such as seat cushioning materials, but such high elastic fabrics do not effectively block moisture penetration. Therefore, it is difficult to use a wide range of various applications such as various functional household goods (for example, outdoor chairs) for use outdoors, and has a problem in that the restrictions on the use are large.

In order to solve the above problems, Korean Patent Laid-Open Publication No. 2005-114536 (name of the invention: a method of manufacturing a high-elasticity fabric) is a polyester that is laminated and covered with a polyester-based elastomer yarn and a general polyester yarn without elasticity Slope made by combining alternating elastomer multifilament and polyester elastomer monofilament. And a high elastic polyester fabric is formed by forming a woven fabric using the polyester-based elastomer multifilament as a weft yarn, and heat-sealed the woven fabric with hot air. The high elastic polyester fabric has characteristics of excellent elasticity-related properties such as cushioning, compression recovery, adhesion to the human body. However, in order to maintain the elastic force of the fabric, high-cost polyester-based elastomer, monofilament is used as the main material, the manufacturing cost of the high elastic polyester fabric is greatly increased. In addition, the high elastic polyester elastomer multifilament and the polyester elastomer monofilament set in the light and weft yarn in the manufacturing process of high elastic polyester fabric has a property to shrink, and due to this property is a polyester-based Handling of elastomeric multifilaments and polyester-based elastomeric monofilaments is very demanding, which in turn has the problem of leading to reduced productivity of highly elastic polyester fabrics.

Accordingly, an object of the present invention is composed of a polyester low-melting point yarn and a polyester twisted yarn fused and covered the intersection of the polyester multifilament yarn and polyester-based elastomer monofilament yarn heat-sealed, the expensive and difficult to handle polyester-based elastomer It is to provide a high-elastic polyester fabric that can be widely used as interior fabrics and industrial fabrics, such as chair covers, bedding, etc. to reduce the manufacturing cost and to facilitate the use.

In order to achieve the above object, in the present invention, the polyester low-melting point yarn and the polyester twisted yarn, which is expressed at 100 to 190 ° C., the polyester multifilament yarn, which is braided and covered, forms a warp and weft yarn, but the warp or weft yarn A polyester-based elastomeric monofilament yarn is combined with at least one of them to form a woven fabric, and the woven fabric is heat-treated with hot air at 150 to 190 ° C. to provide a high-elastic polyester fabric composed of heat-sealed intersections of the light and weft yarns. .

The high-elasticity polyester fabric according to the present invention has a characteristic that the amount of polyester-based elastomers that are expensive and difficult to handle is reduced so that the manufacturing cost is greatly reduced, and the fabrication process is easy.

In addition, the high-elasticity polyester fabric of the present invention has excellent elasticity, and does not cause loosening of the fabric during cutting, and excellent workability, so that it can be widely used as interior fabrics or industrial fabrics such as chair covers and beddings. have.

In the present invention, weaving a woven fabric with a warp or weft yarn formed of a combination of polyester low-melting point yarns and polyester twisted yarns fused and covered polyester multifilament yarns, polyester-based elastomer monofilament yarns, and heat-treated the woven fabrics to a constant temperature It is a technical idea to provide a high-elasticity polyester fabric formed by heat-sealing the intersection of the light and weft yarns.

The high elastic polyester fabric of the present invention will be described in detail with reference to Examples.

Conventionally, polyester elastomer monofilament yarns are used as light and weft yarns to manufacture high-elastic polyester fabrics, or polyester-based elastomer multi-coated polyester polyester yarns and general polyester yarns having no elasticity and covering Slope of alternating filament and polyester-based elastomer monofilament. And forming a woven fabric using the polyester-based elastomer multifilament as a weft yarn, and heat-sealing the woven fabric with hot air to produce a high elastic polyester fabric. However, the high elastic polyester fabric has a high price and high elasticity. As elastomer-based elastomer and monofilament are used as main materials, the manufacturing cost of high-elastic polyester fabric is greatly increased, and also, the handling of polyester-based elastomer multifilament and polyester-based elastomer monofilament shrinks during the manufacturing process. There is a problem that the productivity of the highly elastic polyester fabric is greatly reduced.

Therefore, in the present invention, the polyester low-melting point yarn and low-cost polyester twisted yarn, which are expressed at low temperature, are woven using a braided and covered polyester multifilament yarn as light and weft yarns, but the warp or weft yarns have high elasticity. At least one of the polyester-based elastomer monofilament yarns are combined and woven to form a woven fabric.

Specifically, the polyester low-melting point yarn and the polyester false-twisted yarn, which is expressed at 100 to 190 ° C., are used as light and weft yarns of 1,000 to 5,000 denier polyester multifilament yarn, which is plied and covered, at least one of the warp or weft yarns. Weaving woven fabric by combining polyester-based elastomer monofilament yarn with very high elasticity and elasticity and fineness of 1,000 ~ 3,000 denier at a certain ratio, and weaving the woven fabric with hot elasticity by hot air crossing It is what makes up the fabric.

As described above, polyester multifilament yarn having a fineness of 1,000 to 5,000 denier used for light and weft yarns in polyester fabrics having high elasticity is based on general polyester twisted yarn, and low bonding force is expressed at 100 to 190 ° C. Melting point polyester monofilament yarns represent 2 to 10 stranded yarns and multifilament yarns covered and woven.

When the temperature at which the bonding strength of the low-melting-point polyester monofilament yarn is spliced and covered on the polyester multifilament yarn, which is the basis of the high elastic polyester fabric, is less than 100 ° C., the low-melting polyester monofilament yarn is spliced and covered by the polyester multifilament yarn The thermal properties of the filament yarns are lowered, which in turn leads to the deterioration of the high elastic polyester fabric, and when the temperature at which the bonding strength of the low melting polyester monofilament yarns fused and covered with the polyester multifilament yarns exceeds 190 ° C, Polyester multifilament yarns braided and covered with low melting polyester filament yarns are not thermally fused.

In addition, if the low-melting polyester monofilament yarns plyed and covered to the polyester twisted yarn, which is based to form the polyester multifilament yarn, is less than 2 strands or 1 strand, the polyester multifilament yarn due to the lack of quantity of the low-melting polyester monofilament yarn Filament yarn is not heat-sealed. When the low melting polyester monofilament yarns plied and covered with polyester twisted yarns exceed 10 strands, the mechanical properties of the polyester multifilament yarns are lowered and thus the practicality is insufficient.

In addition, if the fineness of the polyester multifilament yarn used in the light and weft of the woven fabric to form a high elastic polyester fabric is less than 1,000 denier, the mechanical properties of the high-elastic polyester fabric composed of the polyester multifilament yarn When the fineness of the polyester multifilament yarn combined with the warp or weft of the woven fabric exceeds 5,000 denier, the highly elastic polyester fabric composed of the polyester multifilament yarn becomes excessively stiff and the workability is degraded.

A polyester-based elastomeric monofilament yarn is formed on at least one of warp or weft yarns in which at least one low melting point polyester monofilament yarn, which is expressed at 100 to 190 ° C., is woven and covered with a polyester multifilament yarn Weaving a woven fabric in combination, and heat-treating the woven fabric at a constant temperature to form a high elastic polyester fabric imparting water resistance by partial heat fusion.

Elasticity of the high elastic polyester fabric constructed using the polyester elastomer monofilament yarn if the fineness of the polyester elastomer monofilament yarn used as the warp or weft of the woven fabric to form the high elastic polyester fabric is less than 1,000 denier If the fineness of the polyester-based elastomer monofilament yarn used for the light and weft of the woven fabric exceeds 3,000 deniers, the workability of the high-elastic polyester fabric formed by using the polyester-based elastomer monofilament yarn is reduced.

In the arrangement of the polyester multifilament yarns and polyester-based elastomer monofilament yarns, alternately arranged polyester multifilament yarns and polyester-based elastomer monofilament yarns to form a warp or weft yarn, weaving the warp, weft yarns It is preferable in terms of forming a high temperature and high elastic polyester fabric by uniformly heat-sealing the polyester multifilament yarns and the polyester-based elastomeric monofilament yarns at a constant temperature.

The warp yarns and the weft yarns arranged to form the woven fabric are each configured to have a density of 500 to 1,500 bones / m. When the density of warp yarns and weft yarns arranged to form a woven fabric is less than 500 bone / m, the density of the light and weft polyester multifilament yarns and polyester-based elastomer monofilament yarns is insufficient so that they are not properly thermally fused. When the density of warp and weft yarn exceeds 1,500 bone / m, the density of the light and weft yarn is excessive, and the workability of the highly elastic polyester fabric composed therefrom is reduced.

Polyester low melting point yarns fused and covered with polyester multifilament yarns of the light and weft yarns as described above are fused at a constant temperature to express adhesive strength, and the adhesive force expressed at the intersections of the light and weft yarns, that is, low melting point polyester monofilament yarns By this, the intersection point of the polyester multifilament yarn and the polyester-based elastomer monofilament yarn, and the intersection point of the polyester multifilament yarn and the polyester multifilament yarn are heat-sealed.

Specifically, the woven fabric as described above is heat treated by applying hot air at 150 to 190 ° C. while applying tension in a tenter, and the intersection point of the light and weft yarns of the woven fabric, ie, polyester multifilament yarn and polyester-based elastomer monofilament, is applied by the heat treatment. By heat-sealing the intersections of the yarns and the intersection points of the polyester multifilament yarns and the polyester multifilament yarns, a high-strength polyester fabric bonded at the intersection points is fused.

The polyester multifilament yarn and the polyester multifilament yarn when the temperature to heat the woven fabric by combining the polyester-based elastomer monofilament yarn in the warp or weft of the polyester multifilament yarn to form a partially heat-bonded high elastic polyester fabric The intersection point of polyester elastomer monofilament yarn and the intersection point of polyester multifilament yarn and polyester multifilament yarn are not heat-sealed properly, and the temperature to heat the woven fabric by combining polyester multifilament yarn in warp or weft yarn is 190 When it exceeds the ℃, the energy required for the heat treatment is excessively increased the manufacturing cost of the high elastic polyester fabric.

The high elastic polyester fabric of the present invention is manufactured by cooling the fabric in which the intersection point of the polyester multifilament yarn and the polyester-based elastomer monofilament yarn and the intersection point of the polyester multifilament yarn and the polyester multifilament yarn are heat-sealed. .

The highly elastic polyester fabric constructed as described above has the same elasticity as the conventional high elastic fabric mainly composed of polyester-based elastomers, but has a high cost and shrinkage of polyester-based elastomers having properties of shrinking properties. It is reduced, the manufacturing cost is greatly reduced, and the fabric is easy to manufacture.

Hereinafter, the present invention will be described in more detail with reference to specific examples.

However, the following examples are merely to illustrate the present invention in detail, and the content of the present invention is not limited by the following examples.

≪ Example 1 >

1. Using a polyester multifilament yarn having a fineness of 3,000 denier polyester multifilament yarn based on polyester twisted yarn and covered with four strands of low melting point polyester monofilament yarns at a density of 768 bone / m, the polyester multifilament yarn : A polyester-based elastomeric monofilament yarn having a fineness of 2,700 denier was used at a ratio of 1: 3 and used as a weft yarn having a density of 768 bone / m, and a woven fabric was formed by weaving V beams in a single beam.

2. The woven fabric was heat-treated in a tenter with a hot air at 180 ° C. for 30 seconds to heat-bond the intersection of the polyester multifilament yarn and the polyester elastomer monofilament yarn, and the intersection of the polyester multifilament yarn and the polyester multifilament yarn. The fabric was constructed.

3. Cooling by adding a cooling air stream generated in the blower to the cross point hot-sealing fabric to prepare a high-elastic polyester fabric.

≪ Example 2 >

1. Using a polyester multifilament yarn having a fineness of 3,000 denier polyester multifilament yarn based on polyester twisted yarn and covered with 6 strands of low melting point polyester monofilament yarn at a density of 768 bone / m, and the polyester multifilament yarn : A polyester-based elastomeric monofilament yarn having a fineness of 3,000 deniers was used at a ratio of 1: 3 and used as a weft yarn having a density of 768 bone / m, and woven into a single beam by V heald.

2. The woven fabric is heat-treated at 30 ° C. in a tenter with a hot air at 180 ° C. for 30 seconds to intersect the intersection point of the polyester multifilament yarn and the polyester-based elastomer monofilament yarn, and the intersection point of the polyester multifilament yarn and the polyester multifilament yarn. The heat-sealed fabric was constructed.

3. Cooling by adding a cooling air stream generated in the blower to the cross point hot-sealing fabric to prepare a high-elastic polyester fabric.

<Example 3>

1. Using a polyester multifilament yarn having a fineness of 3,000 denier polyester multifilament yarn based on polyester twisted yarn and covered with four strands of low melting point polyester monofilament yarns at a density of 768 bone / m, the polyester multifilament yarn : A polyester-based elastomeric monofilament yarn having a fineness of 2,500 denier was used at a ratio of 1: 3 and used as a weft yarn having a density of 768 bone / m, and woven into a single beam by V heald.

2. The woven fabric was heat-treated in a tenter with a hot air at 180 ° C. for 30 seconds to heat-bond the intersection of the polyester multifilament yarn and the polyester elastomer monofilament yarn, and the intersection of the polyester multifilament yarn and the polyester multifilament yarn. The fabric was constructed.

3. Cooling by adding a cooling air stream generated in the blower to the cross point hot-sealing fabric to prepare a high-elastic polyester fabric.

<Comparative Example>

1. A polyester-based elastomer multifilament made of a polyester elastomer yarn and a general polyester yarn having no elasticity and a polyester-based elastomer monofilament are alternately used as a warp, and the polyester-based elastomer multifilament is used as a weft yarn. To weave a V beam in a single beam to form a woven fabric.

2. The woven fabric was heat-treated in a tenter with hot air at 180 ° C. for 30 seconds to construct a heat-sealed fabric.

3. Cooling by adding a cooling air stream generated in the blower to the heat-sealed fabric to prepare a high elastic polyester fabric.

Tensile strength was measured according to ASTM (D 5034: 1995) CRE grab method for the high-elastic polyester fabric prepared in Example 1, and the high-elastic polyester fabric prepared in Comparative Example, KS K- Tensile elongation was measured according to 0520, hardness (durometer D) was measured according to ASTM (D2240) / ISO (868), and flexural modulus was measured according to ASTM (D790) / ISO (178). The results are shown in Table 1, and the results of the elongation test related to the elastic force are shown in FIGS. 1 and 2.

<Table 1> Comparison of physical property test results of high elastic polyester fabric

division Example 1 Example 2 Example 3 Comparative example Tensile Strength (㎏ / ㎠) 5% strain 70 80 75 21 10% strain 105 120 117 34 Tensile Elongation (%) Slope 36.1
Weft 43.4 Slope 34.5
Weft 42.0 Tilt 35.8
Weft 42.9 Slope 33.3
Weft 40.0 Hardness (㎏ / ㎠) 55 50 60 58 Flexural modulus (㎏ / ㎠) -40 ℃ 7700 8070 7900 7100 23 ℃ 2100 2300 2200 1900 100 ℃ 1120 1200 1100 970

Table 1 shows that the elasticity of the high elastic polyester fabric prepared by Example 1 is generally superior to that of the high elastic polyester fabric prepared by the comparative example.

In addition, in Figures 1 and 2, the elasticity between the high-elastic polyester fabric of the present invention and the high elastic polyester fabric of the embodiment using a large amount of polyester elastomer yarn reduced in the amount of high-cost and difficult to use polyester elastomer yarn Showed little difference.

1 is a test chart of the elongation of a highly elastic polyester fabric according to an embodiment of the present invention

Figure 2 is an elongation test graph of a high elastic polyester fabric according to a comparative example of the present invention

Claims (6)

Polyester low-melting point yarns and polyester false-twisted yarns which are bonded at 100 to 190 ° C. are braided and covered with polyester multifilament yarns to form light and weft yarns, and the polyester-based elastomer monofilament yarns are combined with at least one of the warp or weft yarns. And a woven fabric is formed, and the woven fabric is heat-treated with hot air at 150 to 190 ° C., whereby the intersection points of the light and weft yarns are heat-sealed. The polyester fabric of claim 1, wherein the polyester multifilament yarn is based on polyester twisted yarn and is composed of two to ten strands of low melting polyester monofilament yarn woven and covered. The polyester fabric of claim 1, wherein the polyester multifilament yarn is configured to have a fineness of 1,000 to 5,000 denier. The high elastic polyester fabric of claim 1, wherein the polyester-based elastomer monofilament yarn is configured to have a fineness of 1,000 to 3,000 denier. 2. The highly elastic polyester fabric as claimed in claim 1, wherein the warp yarn and the weft yarn are each configured to have a density of 500-1,500 bone / m. 2. The high elastic polyester fabric of claim 1, wherein the woven fabric is configured to be heat treated for 30 to 150 seconds.

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