KR20050114536A - The manufacturing process of woven fabrics - Google Patents

Abstract

The present invention has a cushioning property with a sense of elasticity, extruded spinning polyester-based plastic elastomer in order to produce a high elastic fabric, so that the elasticity is not damaged even if repeated or long-term use, excellent cushioning durability, to produce a multifilament Next, after producing the fiber of the multifilament prepared as described above with another non-elastic polyester fiber to make a yarn of 600 denier to 3000 denier or after processing 3000 denier yarn from polyester fiber 600 denier, polyester series The present invention relates to a method for producing a highly elastic fabric prepared by extruding a plastic elastomer to prepare a monofilament, and then weaving the fabric, followed by thermofusion using a hot air, followed by rapid cooling.

Description

 The manufacturing process of woven fabrics

The present invention relates to a method of manufacturing a high-elastic fabric, to be described in more detail, it is used as a seat seat for automobiles, aircrafts, railway vehicles, furniture offices, etc. and protects bed mattresses, medical beds, chair sheets, footwear upper sports goods It can be used for the equipment, etc., and the connection point of the connecting company is fixed to each other, eliminating the phenomenon of pushing, and the elasticity of the monofilament is excellent.

The present invention relates to a method for producing a highly elastic fabric comprising a polyester-based plastic elastomer as a main component.

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 by their inherent functionality, such as light weight, corrosion resistance, molding processability, and ease of mass production. Generally, plastics are classified into thermosetting and thermoplastics due to their thermal characteristics, and recently, plastics have been selected and used according to their use.

Mesh fabric is widely used It is widely used for breathability of shoes or cushioning material for bags, curtains, clothes and seats.

As the conventional mesh fabric has a low resilience and is a mesh, the connection links of the yarns are seen, and the connection links of each other are not fixed, so that the phenomenon of being pushed cannot be avoided. Despite these limitations, their use is widely used.

In general, the seat seat is made of various parts such as sponge, urethane molding foam, seat fixing plywood, leather, fabric, etc., so the process is complicated and the environment cannot be recycled when disposed.

The use of highly elastic fabrics provides several advantages.

Due to the mesh's structure, the ventilation is smooth when sitting for a long time, it does not take up sweat, and even distribution of body pressure reduces fatigue and eliminates the need for using complicated parts (sponge, urethane foam, seat fixing plywood), etc. The material is applied to the environmental aspects.

Korean Patent Laid-Open Publication No. 2003-0092033 discloses a three-dimensional knitted fabric composed of a connecting yarn made of a monofilament connecting a two-layer knitted fabric and a two-layer knitted fabric, wherein the grains of the monofilament in the three-dimensional knitted fabric are 0.01 to 1.6 or less and three-dimensional. A three-dimensional knitted fabric for a seat seat is described, wherein the bending elongation of the monofilament of the 50% compressed yarn of the knitted fabric is 20% or less,

Publication No. 1999-0076593 discloses a thermoplastic, three-dimensional fiber network in which a semi-rigid, dimensionally stable three-dimensional fiber network is made from a fabric having protrusions and any depressions that are compressible and compressible and then return to their original form. Is described,

US Patent No. 5,364,686 describes a three-dimensional molding material made from a fabric comprising a yarn having a thermoplastic fiber mixed with a high melting point reinforced fiber,

Patent No. 4,890,877 is coated with a resin (thermosetting resin), and Japanese Patent Application Laid-Open No. 11-269747 and Japanese Patent Laid-Open No. 2001-87077 use monofilaments having good elastic recovery properties in the connecting yarn. Three-dimensional knits are described which improve the compression recovery of three-dimensional knits.

The present invention has a cushioning property of elasticity, body pressure dispersion, repeated or prolonged use does not impair the feeling of elasticity, so that the excellent durability of the cushion properties, extrusion melt spinning polyester-based thermoplastic elastomer to produce a multifilament, and then The fiber produced from the multifilament manufactured as described above is blended with other non-elastic polyester fibers to make 600 denier to 3000 denier yarns or the polyester fiber 600 denier to 3000 denier yarns for air texture processing [(Air Texture Yarn) (A type of process in which compressed air is injected through a nozzle and the resulting turbulence entangles the filaments to form a loop, hereinafter referred to as "ATY")] After processing, the polyester series thermoplastic elastomer is extruded and mono After filament is manufactured, weaving is carried out. Each was prepared and is the object of the present invention is to provide a method of producing elastic fabrics.

In order to achieve the above object, the present invention is to process a polyester-based plastic elastomer, to produce a multifilament, and then to synthesize the fibers of the multifilament prepared as described above with other non-elastic polyester fibers After 600 denier to 3000 denier yarns or polyester fiber 600 denier to 3000 denier fiber ATY processing, extruded to produce monofilament, then weaving, heat-sealing the woven fabric by hot air It relates to a method for producing a high elastic fabric produced by cooling.

The high-performance polyester thermoplastic elastomer (thermoplastic ether-ester elastomer) used in the present invention has an intermediate hardness of rubber and plastics and the superior properties of engineering plastics, and is a superior material that does not change even after long-term use at high temperatures due to its heat resistance. .

Polyester-based plastic elastomers are produced in DuPont, Kolon, and Toyobo.

The most suitable product in this invention should use the product excellent in thermal mechanical stability. Referring to the chemical formula of the specific polyester-based plastic elastomer,

In the chemical structure, if X is greater than Y, hard physical properties are obtained, and in the opposite case, soft physical properties can be obtained.

Such polyester-based plastic elastomers have excellent mechanical properties, chemical resistance, and especially maintain a constant hardness at various temperature changes, and excellent resilience and weather resistance.

You can adjust the specifications of the product according to the usage as shown in the table above.

In the present invention, the elastic fibers include a polyester-based thermoplastic elastomer having excellent elasticity and resilience, and producing a multifilament made of a molten thermoplastic polymer at a temperature in the range of 80 to 300 degrees, and then producing the multifilament prepared as described above. After blending the fibers with other non-elastic polyester fibers to make 600 denier to 3000 denier yarns or after ATY processing of polyester fiber 600 denier to 3000 denier yarns, the polyester-based thermoplastic elastomers are crystalline hard parts as block copolymers. The polybutylene terephthalate (PBT) and the non-crystalline soft part are composed of polytetraethylene ether glycol (PTMEG).

Physical properties are determined by the ratio between the hard and soft parts and the connection method.

As a raw material of the monofilament, a polyester-based plastic elastomer having good elasticity and shock absorption is suitable.

The monofilament of this invention can use the fiber of arbitrary materials, such as a polybutylene terephthalate fiber, a polyethylene terephthalate fiber, a polyamide fiber, a polypropylene fiber, a polyvinyl chloride fiber, a polyester-type elastomer fiber.

The manufacturing method of the monofilament is described in US Patent No. 4,890,877, a manufacturing method coated with a resin,

Another method for producing monofilament is a method of heating and extruding in the extrusion die head formed in the heating section and the end portion after the raw material input, stretched and wound, it is made of a molten polymer at a temperature in the range of 80 ℃ to 350 ℃, Preferably it has a melting temperature in the range of 160 ° C to 330 ° C.

The thickness of the monofilament should be used in the range of 0.25 mm to 1.0 mm.

In order to easily fix the connection point of the monofilament, the die of the extrusion die may be precisely used.

The weaving method is a modification of the normal weaving method to make the connection point firm. Weaving is strong and elastic by weaving method.

By arranging the alternating inclination and Iktil one by one, alternating one by one into the monofilament, converting the cross slope to the left and right each time weaving 1ol of the multifilament weft, weaved past the top of the weft. Weaving

The connection points of monofilament yarns are determined by the employment method. The employment methods include plain weave, tricot and plain weave, leno and change weave.

Machining depends on the usual method and various physical properties can be obtained depending on the method and temperature.

Both sides are fixed with pins, maintain a constant speed and give about 5% width tension.

The temperature is in the range of about 80 to 250 degrees, and the speed is controlled by rapid cooling to heat-bond with hot air for a time sufficient for the fabric to be permanently deformed.

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

Example

First process (manufacture of multifilament)

Butanedialcohol, methyl terephthalate, and polytetraethylene ether glycol are produced from a polyester-based thermoplastic elastomer, which is a molten thermoplastic polymer, at a temperature ranging from 80 ° C to 300 ° C as a raw material, to prepare a multifilament by a conventional method and apparatus. After that, the yarn is blended with other non-elastic polyester fibers at a ratio to make 600 denier to 3000 denier yarns or ATY-processed manufacture of 3000 denier yarns from 600 denier polyester fibers.

2nd process (monofilament manufacturing process)

Butanedialcohol, methyl terephthalate, and polytetraethylene ether glycol were melted thermoplastic polymer polyester-based thermoplastic elastomers at temperatures ranging from 80 ° C to 300 ° C to melt polymers at 160-330 ° C using extrusion dies. After the preparation, the monofilament having a thickness of 0.25 millimeters to 1.0 millimeters was prepared by a conventional method, and then

Third Process (Weaving Process)

By arranging the alternating inclined yarns and the Ik slopes one by one, the multiply slopes are converted into left and right sides of the cross slope of the monofilament manufactured in the second step, and each time weaving one weft of the weft yarn is multi-produced in the first step. Organizes above the filament weft yarn, after weaving on this basis,

4th process (processing process)

The fabric prepared as described above was moved to a hot air fan at a constant speed, heat-sealed with hot air at about 80 to 250 ° C., passed through a hot air fan, and then transferred to a cold air chamber to which a fan was attached to rapidly cool the fabric. .

Experimental Example 1

Fracture temperature test was conducted by the method (° C ASTM D638), the experimental results are shown in Table 1 below.

Table 1

Properties Test Methods compare ASTM ISO unit Example 1 Inching strength (at break) Shinol (at break) Tensile strength (5% strain) Inching strength (10% strain) D638D638D638D638 R527R527R527R527 ㎏ / ㎠% ㎏ / ㎠㎏ / ㎠ 41050070105

Experimental Example 2

Experimental results of the hardness flexural modulus are as shown in Table 2.

Table 2

Properties Test Methods Example ASTM ISO unit Hardness, Durometer D Flexural modulus -40 ℃ 23 ℃ 100 ℃ D2240 D790Method 1 868 178 point ㎏ / ㎠ 55 770021001120

Experimental Example 3

Impact strength test was carried out by IZOD impact (J / cm, ASTM D256, Method A), the results are shown in Table 3

Table 3

Properties Test Methods Example ASTM ISO unit Izod Impact Strength (Notch) -40 ℃ 23 ℃ Cart Growth Resistance Ross (Piercad) Initial tear resistance Pia C D256Method A D1052 D1004 R180 - 34 Cm 2 · kg / cm 2 · kg / cm 2 Cycles to 5X culgrowth KN / m 17 Nondestructive 5 × 10 ⁵ 158

As shown in FIG. 1, the conventional engineering plastics have elasticity close to that of metal, and the high elastic fabric of the present invention maintains the intermediate degree between rubber and metal.

The present invention as described above has a cushioning property with a sense of elasticity, instantaneous compression recovery is good, the elasticity is not damaged even if repeated or prolonged use, the restoring force and the durability of the cushion is excellent, in particular exhibits a cushioning elasticity and At the same time, there is a good fit to the human body, less deformation and good shape retention even after repeated or long-term use

Claims (5)

In the manufacturing method of high elastic fabric, First process (manufacture of multifilament) Butanedialcohol, methyl terephthalate, and polytetraethylene ether glycol are produced from a polyester-based thermoplastic elastomer, which is a molten thermoplastic polymer, at a temperature ranging from 80 ° C to 300 ° C as a raw material, to prepare a multifilament by a conventional method and apparatus. After that, it is blended with other non-elastic polyester fiber at a ratio to make 600 denier to 3000 denier yarn or ATY processed polyester fiber 600 denier to 3000 denier yarn, 2nd process (monofilament manufacturing process) Butanedialcohol, methyl terephthalate, and polytetraethylene ether glycol were melted thermoplastic polymer polyester-based thermoplastic elastomers at temperatures ranging from 80 ° C to 300 ° C to melt polymers at 160-330 ° C using extrusion dies. After the preparation, the monofilament having a thickness of 0.25 millimeters to 1.0 millimeters was prepared by a conventional method, and then Third Process (Weaving Process) By arranging the alternating inclined yarns and the Ik slopes one by one, the multiply slopes are converted into left and right sides of the cross slope of the monofilament manufactured in the second step, and each time weaving one weft of the weft yarn is multi-produced in the first step. Organizes above the filament weft yarn, after weaving on this basis, 4th process (processing process) The fabric prepared as described above is moved to a hot air fan at a constant speed, and heat-sealed with hot air at about 80 to 250 ° C., and then passed through a hot air fan, and then transferred to a cold air chamber to which a fan is attached to produce rapid cooling. High elastic fabric manufacturing method. The method according to claim 1, wherein the first step (manufacture of multifilament) is a conventional method using butanedialcohol, methyl terephthalate, and polytetraethylene ether glycol in a polyester series thermoplastic elastomer having a range of 80 ° C to 300 ° C. And after the multifilament is manufactured by the device, it is combined with other non-elastic polyester fibers at a certain ratio to make 600 denier to 3000 denier or ATY processed manufacture of 3000 denier yarn from 600 denier of polyester fiber. High elastic fabric manufacturing method. The method according to claim 1, wherein the second process (monofilament manufacturing process) is a polyester-based plastic plastic is a molten thermoplastic polymer of butanedialcohol, methyl terephthalate and polytetraethylene ether glycol at a temperature in the range of 80 ℃ to 300 ℃ A method for producing a high-elastic fabric, characterized in that the elastomer is prepared in a molten polymer at 160 to 330 ° C. using an extrusion die mold, and then a monofilament having a thickness of 0.25 millimeters to 1.0 millimeters is manufactured by a conventional method. The method of claim 1, wherein the third step (weaving step) is a weft inclined to the left and right by arranging alternately one by one by arranging the ground slope and the Ik slope to the left and right of the steep slope as a monofilament manufactured in the second process. A method of manufacturing a high-elastic fabric, characterized in that the fabric is produced by weaving on the basis of the weft of the multifilament manufactured in the first step each time weaving one ol. The method of claim 1, wherein the fourth step (processing process) is to move the fabric to a hot air fan at a constant speed, heat-sealed with hot air at about 80 ~ 250 ℃ for about 30 seconds, passing through the hot air fan, and then cold air with a fan Method of manufacturing a high-elastic fabric characterized in that the fast cooling by transferring to the yarn.