JP6379237B2 - Reinforced composite fabric and method for producing the same - Google Patents

Description

  The present invention relates to textile technology, and in particular, to a reinforced composite fabric and a method for producing a reinforced composite fabric.

  With the advance of technology, the demand for functional fabrics is increasing. Functional fabrics have various properties and functions depending on the application. Of the functional fabrics, the reinforced fabric is usually formed by adding a reinforcing agent or adhering a reinforcing film to improve the strength.

  Of these two means, the use of reinforcing agents is more widely adopted. Common reinforcing agents include tear strength improvers, friction fastness improvers, or fabric enhancers. After the fabric is immersed in a solution containing a reinforcing agent, the polymer layer adheres to the fabric surface and the strength of the fabric is improved.

  However, in order to maintain the texture of the reinforced fabric, the concentration of the reinforcing agent needs to be less than 5%, and the reinforcing effect cannot be effectively improved. When the reinforcing agent is used for improving the strength, an additional dipping process and a drying process are required, which leads to complicated work, extended work time, and increased cost. Also, the consumption of large amounts of water and solvents during work places a heavy burden on the environment, so in the future when people increasingly pay attention to environmental protection, the traditional method is the mass production of reinforced fabrics Not suitable for.

  Film lamination is also useful for improving the strength of the fabric. A hot melt adhesive solution is applied in the form of dots on the surface of the fabric, and then coated with a reinforcing film to form a laminated structure. Finally, a reinforced fabric is formed by hot pressing the laminated structure at 200 ° C to 300 ° C.

  However, the hot melt adhesive layer deteriorates with time and peels off from the fabric, and the high hardness property is lost. In addition, the solvent contained in the hot melt adhesive solution may remain in the reinforced fabric formed by film lamination, which limits the applicability of the reinforced fabric.

  An object of the present invention is to provide a reinforced composite fabric and a method for producing a reinforced composite fabric that solve the problem of peeling of the reinforcing film and simplify the manufacturing process.

  In order to achieve the above-mentioned object, the present invention comprises a step of weaving a high-hardness thermoplastic elastomer yarn and a low-hardness thermoplastic elastomer yarn having a melting point in the range of 50 ° C to 150 ° C by weaving, Forming the reinforced composite fabric by hot pressing the fabric at a hot press temperature that is equal to or higher than the melting point of the low-hardness thermoplastic elastomer yarn and less than the melting point of the high-hardness thermoplastic elastomer yarn; A method for producing a reinforced composite fabric is provided.

  According to the present invention, two types of thermoplastic elastomer yarns having different hardnesses or melting points are hot-pressed at an appropriate temperature, so that the low-hardness thermoplastic elastomer yarns are partially melted and the surface of the high-hardness thermoplastic elastomer yarns To form a reinforced composite fabric. According to the above-described method, the tensile strength and impact strength are improved without using a hot melt adhesive solution. The disadvantages of hot melt adhesive layer degradation, peeling of the reinforcing film, and residual solvent are solved. Furthermore, the manufacturing process of reinforced fabric is simpler than the prior art.

Preferably, the hot press pressure is 0.1 kgf / cm ^{2 to} 10 kgf / cm ² .

  With respect to the method for producing a reinforced composite fabric, the hot press temperature is 10 ° C. to 50 ° C. higher than the melting point of the low hardness thermoplastic elastomer yarn. Preferably, the hot pressing temperature is 10 ° C. to 20 ° C. higher than the melting point of the low hardness thermoplastic elastomer yarn. Therefore, in the present invention, the low hardness thermoplastic elastomer yarn can be partially melted by hot pressing the fabric at a hot pressing temperature of less than 200 ° C.

  According to the present invention, the hot pressing temperature can be adjusted according to the melting point of the high hardness thermoplastic elastomer yarn and the melting point of the low hardness thermoplastic elastomer yarn. Preferably, the melting point of the low hardness thermoplastic elastomer yarn is 50 ° C to 150 ° C. More preferably, the low-hardness thermoplastic elastomer yarn has a melting point of 70 ° C to 150 ° C. Thus, reinforced composite fabrics are produced at lower hot pressing temperatures. The melting point of the high-hardness thermoplastic elastomer yarn is 150 ° C to 300 ° C. More preferably, the high-hardness thermoplastic elastomer yarn has a melting point of 160 ° C to 300 ° C. More preferably, the melting point of the high-hardness thermoplastic elastomer yarn is 180 ° C to 250 ° C.

  Preferably, the process of weaving the high-hardness thermoplastic elastomer yarn and the low-hardness thermoplastic elastomer yarn by weaving, twists the high-hardness thermoplastic elastomer yarn and the low-hardness thermoplastic elastomer yarn into a plurality of decorative twist yarns, It further includes weaving the decorative twisted yarn into a fabric. Each of the decorative twisted yarns includes the above-mentioned high-hardness thermoplastic elastomer yarn and low-hardness thermoplastic elastomer yarn twisted together.

  Preferably, the low hardness thermoplastic elastomer yarn has a Shore hardness of 10A to 90A, and the high hardness thermoplastic elastomer yarn has a Shore hardness of 95A to 90D.

  Further, the method further includes the step of twisting the high hardness thermoplastic elastomer fiber and the reinforcing fiber into a high hardness thermoplastic elastomer yarn.

  The step of twisting the high-hardness thermoplastic elastomer fiber and the reinforcing fiber into the high-hardness thermoplastic elastomer yarn gives the high-hardness thermoplastic elastomer yarn the characteristic of the reinforcing fiber. The addition of reinforcing fibers can expand the applicability of reinforced composite fabrics and improve the tensile and impact strength of reinforced composite fabrics.

  Preferably, the reinforcing fiber is a synthetic fiber. Furthermore, synthetic fibers applicable to the present invention include carbon fibers, glass fibers, Kevlar fibers, or Dyneema fibers. The ratio of the reinforcing fibers to the total weight of the high-hardness thermoplastic elastomer yarn is 10% to 90% by weight.

  Preferably, the method comprises the steps of melt spinning a high hardness thermoplastic elastomer polymer into a high hardness thermoplastic elastomer yarn, and melt spinning the low hardness thermoplastic elastomer polymer into a low hardness thermoplastic elastomer yarn. including. In addition, the high-hardness thermoplastic elastomer polymer and the low-hardness thermoplastic elastomer polymer are independently thermoplastic rubber elastomer (TPR), thermoplastic polyurethane elastomer (TPU), styrenic thermoplastic elastomer (TPS), thermoplastic olefin. These are, but not limited to, system elastomer (TPO), thermoplastic vulcanized elastomer (TPV), thermoplastic ester elastomer (TPEE), or thermoplastic polyamide elastomer (TPAE).

  Preferably, the high hardness thermoplastic elastomer polymer and the low hardness thermoplastic elastomer polymer are classified as the same thermoplastic elastomer polymer. Thus, a reinforced composite fabric can have higher tensile strength and higher impact strength because the affinity between the high hardness thermoplastic elastomer yarn and the low hardness thermoplastic elastomer yarn is the same or better.

  The high-hardness thermoplastic elastomer polymer and the low-hardness thermoplastic elastomer polymer each have a soft segment and a hard segment. The hardness and melting point of the thermoplastic elastomer polymer can be adjusted according to the ratio of the soft segment to the hard segment.

  The soft segments are butadiene rubber (BR), isoprene rubber (IR), natural rubber (NR), ethylene propylene diene monomer (EPDM), isobutylene isoprene rubber (IIR), polyisobutylene (PIB), polyethylene / polybutylene, amorphous Although it can be comprised from polyethylene, polyether polyol, polyester polyol, or polyester, it is not limited to these.

  The hard segment is from polystyrene (PS), polyethylene (PE), polypropylene (PP), syndiotactic 1,2-polybutadiene, trans-1,4-polyisoprene, polyurethane (PU), diisocyanate, or polyamide (PA). It can be configured, but is not limited to these.

  Furthermore, in the polyester-polyether type TPEE system, the soft segment can be composed of polyether and the hard segment can be composed of aromatic crystalline polyester. In the polyester-polyester type TPEE system, the soft segment can be composed of an aliphatic polyester and the hard segment can be composed of an aromatic crystalline polyester.

  Preferably, the ratio of soft segments to hard segments in the high hardness thermoplastic elastomer polymer is from 25:75 to 50:50. The ratio of soft segment to hard segment in the low hardness thermoplastic elastomer polymer is 51:49 to 80:20.

  Preferably, both the high hardness thermoplastic elastomer polymer and the low hardness thermoplastic elastomer polymer are TPU. The ratio of the soft segment to the hard segment in the high hardness thermoplastic elastomer polymer is 30:70 to 50:50. The ratio of soft segments to hard segments in the low hardness thermoplastic elastomer polymer is 56:44 to 70:30.

  Preferably, both the high hardness thermoplastic elastomer polymer and the low hardness thermoplastic elastomer polymer are TPEE. The ratio of the soft segment to the hard segment in the high hardness thermoplastic elastomer polymer is 30:70 to 40:60. The ratio of soft segment to hard segment in the low hardness thermoplastic elastomer polymer is 52:48 to 75:25.

  Preferably, both the high hardness thermoplastic elastomer polymer and the low hardness thermoplastic elastomer polymer are TPO. The ratio of the soft segment to the hard segment in the high hardness thermoplastic elastomer polymer is 30:70 to 40:60. The ratio of soft segment to hard segment in the low hardness thermoplastic elastomer polymer is 55:45 to 75:25.

  The high-hardness thermoplastic elastomer yarn and the low-hardness thermoplastic elastomer yarn can form a fabric by a weaving method. The fabric may be, but is not limited to, a circular knitted fabric, a knitted fabric, a jersey fabric, a woven fabric, a plain woven fabric, a woven fabric, or a wavy fabric. Also, the fabric can be formed by different weaving methods within the same process, for example, the fabric can be formed by knitting combined with weaving and plain weaving.

  The present invention further provides a reinforced composite fabric comprising a high hardness thermoplastic elastomer yarn and a low hardness thermoplastic elastomer yarn. Part of the surface of the low hardness thermoplastic elastomer yarn is melted and bonded to the surface of the high hardness thermoplastic elastomer yarn. The reinforced composite fabric can be formed by the method described above.

  In conclusion, the reinforced composite fabric and the method of manufacturing the reinforced composite fabric have the following advantages.

(1) High mechanical strength By hot pressing a fabric woven from a high-hardness thermoplastic elastomer yarn and a low-hardness thermoplastic elastomer yarn, the tensile strength and impact strength of the reinforced composite fabric become higher.

(2) Simple and eco-friendly process The method for producing a reinforced composite fabric solves the problems in producing a reinforced fabric by dipping in a reinforcing agent and film lamination.

(3) Low hot press temperature By adjusting the melting point of the low hardness thermoplastic elastomer yarn, the reinforced composite fabric can be hot pressed at a lower hot press temperature.

1 is a perspective view of a reinforced fabric made from a high hardness thermoplastic elastomer yarn and a low hardness thermoplastic elastomer yarn in a 1: 1 ratio. FIG. FIG. 2 is a perspective view of a reinforced fabric manufactured from a high hardness thermoplastic elastomer yarn and a low hardness thermoplastic elastomer yarn in a 2: 1 ratio.

  In order to prove that the reinforced composite fabric has higher tensile strength and higher impact strength, the reinforced composite fabric and a method for producing the same were provided as follows. Those skilled in the art can readily recognize the advantages and effects of the present invention from the following examples. Various modifications and variations can be made in implementing or applying the present invention without departing from the spirit and scope of the invention.

Example 1
The high-hardness thermoplastic elastomer (abbreviated as “HH-TPE”) polymer used in this example was a thermoplastic polyurethane elastomer (TPU) having a soft segment and a hard segment in a ratio of 44:56. The soft segment was composed of polyol and the hard segment was composed of diisocyanate. An HH-TPE polymer having a Shore hardness of 95A and a melting point of 190 ° C was melt-spun to obtain an HH-TPE yarn (150D / 72F).

  The low hardness thermoplastic elastomer (abbreviated as “LH-TPE”) polymer used in this example was TPU and had a soft segment and a hard segment in a ratio of 65:35. The soft segment was composed of polyol and the hard segment was composed of diisocyanate. An LH-TPE polymer having a Shore hardness of 80A and a melting point of 100 ° C. was melt-spun to obtain an LH-TPE yarn (150D / 72F).

  The HH-TPE yarn and the LH-TPE yarn were crossed with each other at a ratio of 1: 1 to form a woven fabric. The size of the fabric was 21 cm × 30 cm. The structure of the fabric is shown in FIG.

Referring to FIG. 1, the fabric 1 </ b> A is composed of HH-TPE yarns 2 and LH-TPE yarns 3. The warp yarn was composed of HH-TPE yarn 2 and LH-TPE yarn 3 at a ratio of 1: 1, and the weft yarn was composed of HH-TPE yarn 2 and LH-TPE yarn 3 at a ratio of 1: 1. That is, the HH-TPE yarn 2 and the LH-TPE yarn 3 are alternately arranged in both the horizontal direction and the vertical direction. Subsequently, the fabric 1A was preheated at 100 ° C. for 30 minutes, and hot-pressed at 110 ° C. and a pressure of 1 kgf / cm ² for 3 minutes. The hot pressed fabric was cooled to obtain a reinforced composite fabric.

Example 2
The HH-TPE yarn (150D / 72F) and the LH-TPE yarn (150D / 72F) used in this example are the same as those used in Example 1.

  However, the HH-TPE yarn and the LH-TPE yarn were crossed at a ratio of 2: 1 to form a woven fabric. The structure of the fabric is shown in FIG.

  Referring to FIG. 2, the fabric 1B is composed of HH-TPE yarn 2 and LH-TPE yarn 3. The warp yarn was composed of HH-TPE yarn 2 and LH-TPE yarn 3 at a ratio of 2: 1, and the weft yarn was composed of HH-TPE yarn 2 and LH-TPE yarn 3 at a ratio of 2: 1. That is, two HH-TPE yarns 2 and one LH-TPE yarn 3 were repeatedly arranged in both the horizontal direction and the vertical direction.

  Subsequently, the woven fabric 1B was preheated and hot pressed as described in Example 1 to obtain a reinforced composite fabric of Example 2.

Example 3
The HH-TPE polymer used in this example was a thermoplastic polyetherester elastomer (TPEE) having a soft segment and a hard segment in a ratio of 37:63. The soft segment was composed of aliphatic polyester and the hard segment was composed of aromatic crystalline polyester. An HH-TPE polymer having a Shore hardness of 72D and a melting point of 220 ° C. was melt-spun to obtain an HH-TPE yarn (150D / 72F).

  The LH-TPE polymer used in this example was TPEE with soft segments and hard segments in a 62:38 ratio. The soft segment was composed of aliphatic polyester and the hard segment was composed of aromatic crystalline polyester. An LH-TPE polymer having a Shore hardness of 30D and a melting point of 150 ° C. was melt-spun to obtain an LH-TPE yarn (150D / 72F).

  HH-TPE yarn and LH-TPE yarn were crossed with each other at a ratio of 1: 1 to form a woven fabric in the same manner as in Example 1. Subsequently, the fabric was preheated and hot pressed as described in Example 1 to obtain a reinforced composite fabric of Example 3. However, the preheating temperature of the fabric was 150 ° C., and the hot press temperature of the fabric was 170 ° C.

Example 4
The HH-TPE polymer used in this example was a thermoplastic olefin elastomer (TPO) having a soft segment and a hard segment in a ratio of 35:65. The soft segment was composed of ethylene propylene diene monomer (EPDM) and the hard segment was composed of polypropylene (PP). An HH-TPE polymer having a Shore hardness of 75D and a melting point of 160 ° C was melt-spun to obtain an HH-TPE yarn (150D / 72F).

  The LH-TPE polymer used in this example was TPO having soft segments and hard segments in a ratio of 68:32. The soft segment was composed of EPDM and the hard segment was composed of PP. An LH-TPE polymer having a Shore hardness of 56A and a melting point of 70 ° C. was melt-spun to obtain an LH-TPE yarn (150D / 72F).

  HH-TPE yarn and LH-TPE yarn were crossed with each other at a ratio of 1: 1 to form a woven fabric in the same manner as in Example 1. The fabric was preheated and hot pressed as described in Example 1 to obtain a reinforced composite fabric of Example 4. However, the preheating temperature of the fabric was 70 ° C., and the hot press temperature of the fabric was 100 ° C.

Example 5
The same HH-TPE polymer as in Example 1 used in this example was melt-spun to obtain HH-TPE fibers (75D / 36F). HH-TPE fibers and polyethylene terephthalate (PET) fibers (75D / 36F) were twisted together to obtain HH-TPE yarns (150D / 72F).

  The same LH-TPE polymer as in Example 1 was melt-spun to obtain LH-TPE fibers (150D / 72F).

  HH-TPE yarn and LH-TPE yarn were crossed with each other at a ratio of 1: 1 to form a woven fabric in the same manner as in Example 1. Subsequently, the fabric was preheated and hot pressed as described in Example 1 to obtain a reinforced composite fabric of Example 5.

Example 6
The HH-TPE yarn (150D / 72F) and the LH-TPE yarn (150D / 72F) used in this example are the same as those used in Example 1. However, the knitted fabric was formed by knitting HH-TPE yarn and LH-TPE yarn at a ratio of 1: 1. Subsequently, the knitted fabric was preheated and hot pressed as described in Example 1 to obtain a reinforced composite fabric of Example 6.

Example 7
The HH-TPE yarn (150D / 72F) and LH-TPE yarn (150D / 72F) used in this example are the same as those used in Example 5. However, the knitted fabric was formed by knitting HH-TPE yarn and LH-TPE yarn at a ratio of 1: 1. Subsequently, the knitted fabric was preheated and hot pressed as described in Example 5 to obtain a reinforced composite fabric of Example 7.

Example 8
The HH-TPE yarn (150D / 72F) used in this example is the same as that used in Example 1. The LH-TPE yarn (150D / 72F) used in this example is the same as that used in Example 4. Further, the HH-TPE yarn and the LH-TPE yarn were crossed with each other at a ratio of 1: 1 to form a woven fabric.
Subsequently, the woven fabric was preheated and hot pressed as described in Example 4 to obtain a reinforced composite fabric of Example 8.

Comparative Example 1
Two identical HH-TPE yarns (150D / 72F) were obtained by melt spinning the same HH-TPE polymer used in Example 1 used in this comparative example. Two HH-TPE yarns were crossed with each other to form a woven fabric in the same manner as in Example 1.

  Subsequently, the fabric was preheated and hot pressed as described in Example 1. The appearance of the fabric did not change after hot pressing.

Comparative Example 2
The fabric used in this comparative example is the same as that used in comparative example 1.
Subsequently, the fabric was preheated and hot pressed as described in Example 1. However, the preheating temperature of the fabric was 190 ° C., and the hot press temperature of the fabric was 230 ° C.

  After hot pressing the fabric, the two HH-TPE yarns were melted to form a single TPU polymer film. The TPU polymer film lost the texture of the fabric.

Test Example In order to clarify the differences between Examples 1 to 8, the properties of the HH-TPE polymer and the properties of the LH-TPE polymer are shown in Table 1.

  In order to measure the mechanical properties of the reinforced composite fabric, the tensile strength of the fabric and the tensile strength of the reinforced composite fabric were measured in accordance with ASTM-D142 defined by the American Society for Testing Materials (ASTM). Further, the impact strength of the fabric and the impact strength of the reinforced composite fabric were measured in accordance with ASTM-D256 defined by ASTM.

  Table 2 shows operating conditions and properties of the reinforced composite fabric between Examples 1 to 8 and Comparative Example 1 in order to clarify the differences between the examples and the comparative examples.

Table 1: Types of HH-TPE polymers in Examples 1 to 8 (abbreviated as “E1” to “E8”), ratio of soft segment to hard segment in HH-TPE polymer (abbreviated as “SS: HS”), HH -Shore hardness of TPE polymer, melting point of HH-TPE polymer, and types of LH-TPE polymers of Examples 1-8 (abbreviated as "E1" to "E8"), SS: HS ratio in LH-TPE polymers , Shore hardness of LH-TPE polymer, and melting point (° C.) of LH-TPE polymer.

Table 2: Ratios of fabric HH-TPE yarn to LH-TPE yarn in Examples 1-8 and Comparative Example 1 (abbreviated as “E1” to “E8” and “C1”) (“HH yarn: LH yarn”) Abbreviation), fabric preheating temperature (° C.), fabric hot press temperature (° C.), fabric tensile strength (kgf / cm ² ), reinforced composite fabric tensile strength (kgf / cm ² ), fabric impact Strength (J / m), impact strength of reinforced composite fabric (J / m).

  Referring to Table 1, by controlling the SS: HS ratio of the HH- / LH-TPE polymer, HH- / LH-TPE yarns can be produced from HH- / LH-TPE polymers having different hardness and melting point.

  Referring to Table 2, the tensile strength and impact strength of the reinforced composite fabrics of Examples 1-8 were higher than those of Examples 1-8. Thus, the present invention can produce reinforced composite fabrics having higher tensile strength and higher impact strength.

  In Examples 1-7, the HH-TPE polymer and the LH-TPE polymer are classified as the same thermoplastic elastomer polymer in order to improve the affinity between the HH-TPE yarn and the LH-TPE yarn.

  Referring to Table 1, the LH-TPE polymer and HH-TPE polymer in Examples 1, 2, 5, and 8 were TPU. When the SS: HS ratio of the LH-TPE polymer is 56:44 to 70:30, the shore hardness of the LH-TPE yarn is 10A to 90A, and the melting point of the LH-TPE yarn is 50 ° C to 150 ° C. It was. When the SS: HS ratio of the HH-TPE polymer is 30: 70-50: 50, the shore hardness of the HH-TPE yarn is 95A-90A, and the melting point of the HH-TPE yarn is 170 ° C-300 ° C. It was.

  Referring to Table 1, the LH-TPE polymer and HH-TPE polymer in Example 3 were TPEE. When the SS: HS ratio of the LH-TPE polymer is 52:48 to 75:25, the shore hardness of the LH-TPE yarn is 30D-60D, and the melting point of the LH-TPE yarn is 100 ° C-180 ° C. It was. When the SS: HS ratio of the HH-TPE polymer is 30: 70-40: 60, the shore hardness of the HH-TPE yarn is 65D-80D and the melting point of the HH-TPE yarn is 185 ° C-280 ° C. It was.

  Referring to Table 1, the LH-TPE polymer and HH-TPE polymer in Examples 4 and 8 were TPO. When the SS: HS ratio of the LH-TPE polymer is 55:45 to 75:25, the shore hardness of the LH-TPE yarn is 30A-60A, and the melting point of the LH-TPE yarn is 50 ° C-80 ° C. It was. When the SS: HS ratio of the HH-TPE polymer is 30: 70-40: 60, the shore hardness of the HH-TPE yarn is 65A-90A, and the melting point of the HH-TPE yarn is 100 ° C-180 ° C. It was.

  Referring to Table 2, by using the same type for the LH-TPE polymer and the HH-TPE polymer, the reinforced composite fabrics of Examples 1 to 7 have improved tensile strength and impact strength after hot pressing.

  When Example 1 and Example 8 were compared, the HH-TPE polymers of Example 1 and Example 8 were both TPU. However, the LH-TPE polymer in Example 1 was TPU, but the LH-TPE polymer in Example 8 was TPO. Referring to Table 2, the tensile strength and impact strength of the reinforced composite fabric of Example 1 is higher than that of Example 8 due to the higher affinity between HH-TPE and LH-TPE yarns. It was.

  When Example 4 and Example 8 were compared, the LH-TPE polymers of Example 4 and Example 8 were both TPO. However, the HH-TPE polymer in Example 4 was TPO, but the HH-TPE polymer in Example 8 was TPU. Referring to Table 2, the tensile strength of the reinforced composite fabric of Example 8 was higher than that of Example 4 due to the TPU strengthening the tensile strength. Due to the higher affinity between HH-TPE and LH-TPE yarns, the impact strength of the reinforced composite fabric of Example 4 was higher than Example 8. Accordingly, reinforced composite fabrics made with various HH-TPE polymers or various LH-TPE polymers are believed to have various properties and mechanical strength.

Further, other types of fibers may be included in the HH-TPE yarn or LH-TPE yarn to form a reinforced composite fabric having various properties. Referring to Table 2, in Examples 5 and 7, PET fibers and TPU fibers are twisted together to form HH-TPE yarns. In Examples 5 and 7, the tensile strength and impact strength of the reinforced composite fabric were improved. The tensile strength of the reinforced composite fabric of Example 5 was 531 kgf / cm ² , and the impact strength of the reinforced composite fabric of Example 5 was 287 J / m. The tensile strength of the reinforced composite fabric of Example 7 was 267 kgf / cm ² , and the impact strength of the reinforced composite fabric of Example 7 was 148 J / m.

When Examples 1-5 were compared with Examples 6 and 7, the fabrics of Examples 1-5 were woven fabrics, and the fabrics of Examples 6 and 7 were knitted fabrics. Referring to Table 2, the tensile strength and impact strength of the reinforced composite fabric are improved after hot pressing regardless of the type of fabric. Therefore, various fabrics can be suitably used in the method for producing the reinforced composite fabric.
In order to compare the woven fabric and the knitted fabric, the first group (Examples 1 and 6) and the second group (Examples 5 and 7) were respectively prepared in the same manner. That is, the difference between the first group and the second group was only the type of fabric. Referring to Table 2, the tensile strength and impact strength of the reinforced composite fabric (Examples 1 and 5) made from the woven fabric are higher than the reinforced composite fabric (Examples 6 and 7) made from the knitted fabric.

  When Example 1 is compared with Comparative Example 1, the fabric of Comparative Example 1 is woven from two identical HH-TPE yarns. Even after preheating and hot pressing the fabric, the fabric did not form a reinforced composite fabric. Referring to Table 2, the tensile strength and impact strength of the reinforced composite fabric of Comparative Example 1 were not clearly improved.

  Comparing Example 1 with Comparative Example 2, the fabric of Comparative Example 2 was woven from two identical HH-TPE yarns and the hot press temperature was below the melting point of the HH-TPE yarns. From this result, it can be seen that the woven fabric of Comparative Example 2 not only failed to form a reinforced composite fabric, but also might damage the texture of the fabric. Therefore, using HH-TPE yarn and LH-TPE yarn and controlling the hot press temperature of the fabric within a specific range is an important feature for producing a reinforced composite fabric.

Claims (13)

A process of weaving a high hardness thermoplastic elastomer yarn and a low hardness thermoplastic elastomer yarn having a melting point in the range of 50 ° C to 150 ° C by weaving;
Forming a reinforced composite fabric by hot pressing the fabric at a hot press temperature that is equal to or higher than the melting point of the low-hardness thermoplastic elastomer yarn and less than the melting point of the high-hardness thermoplastic elastomer yarn; only including,
A method for producing a reinforced composite fabric, wherein the low hardness thermoplastic elastomer yarn has a Shore hardness of 10A to 90A, and the high hardness thermoplastic elastomer yarn has a Shore hardness of 95A to 90D .   The method for producing a reinforced composite fabric according to claim 1, wherein the hot press temperature is 10 ° C. to 50 ° C. higher than the melting point of the low-hardness thermoplastic elastomer yarn.   The method for producing a reinforced composite fabric according to claim 1 or 2, wherein the high-hardness thermoplastic elastomer yarn has a melting point of 150C to 300C. In the step of weaving the high-hardness thermoplastic elastomer yarn and the low-hardness thermoplastic elastomer yarn into a fabric by weaving, the high-hardness thermoplastic elastomer yarn and the low-hardness thermoplastic elastomer yarn are twisted together to form a plurality of decorative twisted yarns Further comprising weaving the plurality of decorative twisted yarns into the fabric,
The method for producing a reinforced composite fabric according to claim 1 , wherein each of the decorative twisted yarns includes the high-hardness thermoplastic elastomer yarn and the low-hardness thermoplastic elastomer yarn twisted together. The method of manufacturing a reinforced composite fabric according to any one of claims 1 to 4 , wherein the method includes twisting high-hardness thermoplastic elastomer fibers and reinforcing fibers into the high-hardness thermoplastic elastomer yarns. Method. The reinforcing fiber includes carbon fiber, glass fiber, Kevlar fiber (registered trademark) , or Dyneema fiber (registered trademark) , and the ratio of the reinforcing fiber to the total weight of the high-hardness thermoplastic elastomer yarn is 10% by weight to 90% by weight. %. The method for producing a reinforced composite fabric according to claim 5 . The method comprises
Melt spinning a high hardness thermoplastic elastomer polymer into the high hardness thermoplastic elastomer yarn, and melt spinning a low hardness thermoplastic elastomer polymer into the low hardness thermoplastic elastomer yarn,
The high-hardness thermoplastic elastomer polymer and the low-hardness thermoplastic elastomer polymer are independently a thermoplastic rubber elastomer, a thermoplastic polyurethane elastomer, a styrenic thermoplastic elastomer, a thermoplastic olefin elastomer, a thermoplastic vulcanized elastomer, It is a thermoplastic ester elastomer or a thermoplastic polyamide elastomer, The manufacturing method of the reinforced composite fabric as described in any one of Claims 1-6 . The method for producing a reinforced composite fabric according to claim 7 , wherein the high-hardness thermoplastic elastomer polymer and the low-hardness thermoplastic elastomer polymer are classified as the same thermoplastic elastomer polymer. The high-hardness thermoplastic elastomer polymer and the low-hardness thermoplastic elastomer polymer each have a soft segment and a hard segment;
The ratio of the soft segment to the hard segment in the high-hardness thermoplastic elastomer polymer is 25:75 to 50:50, and the ratio of the soft segment to the hard segment in the low-hardness thermoplastic elastomer polymer is 51:49 to The method for producing a reinforced composite fabric according to claim 7 , which is 80:20. The high hardness thermoplastic elastomer polymer and the low hardness thermoplastic elastomer polymer are both classified as thermoplastic polyurethane elastomers,
The high-hardness thermoplastic elastomer polymer and the low-hardness thermoplastic elastomer polymer each have a soft segment and a hard segment;
The ratio of the soft segment to the hard segment in the high-hardness thermoplastic elastomer polymer is 30:70 to 50:50, and the ratio of the soft segment to the hard segment in the low-hardness thermoplastic elastomer polymer is 56:44 to The method for producing a reinforced composite fabric according to claim 7 , which is 70:30. Both the high-hardness thermoplastic elastomer polymer and the low-hardness thermoplastic elastomer polymer are classified as thermoplastic polyetherester elastomers,
The high-hardness thermoplastic elastomer polymer and the low-hardness thermoplastic elastomer polymer each have a soft segment and a hard segment;
The ratio of the soft segment to the hard segment in the high-hardness thermoplastic elastomer polymer is 30:70 to 40:60, and the ratio of the soft segment to the hard segment in the low-hardness thermoplastic elastomer polymer is 52:48 to The method for producing a reinforced composite fabric according to claim 7 , which is 75:25. Both the high-hardness thermoplastic elastomer polymer and the low-hardness thermoplastic elastomer polymer are classified as thermoplastic olefin elastomers,
The high-hardness thermoplastic elastomer polymer and the low-hardness thermoplastic elastomer polymer each have a soft segment and a hard segment;
The ratio of the soft segment to the hard segment in the high hardness thermoplastic elastomer polymer is 30:70 to 40:60, and the ratio of the soft segment to the hard segment in the low hardness thermoplastic elastomer polymer is 55:45. The method for producing a reinforced composite fabric according to claim 7 , which is 75:25. Including a high-hardness thermoplastic elastomer yarn and a low-hardness thermoplastic elastomer yarn, a part of the surface of the low-hardness thermoplastic elastomer yarn is melted and bonded to the surface of the high-hardness thermoplastic elastomer yarn ,
The low-hardness thermoplastic elastomer yarn Shore hardness of a 10A～90A, reinforced composite fabric the high-hardness thermoplastic elastomer yarn Shore hardness of Ru 95A~90D der.

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