JPH0689492B2 - Glide device cloth - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION (Field of Industrial Use) The present invention has a light and durable woven structure suitable as a material for flying by utilizing aerodynamic resistance such as wings and umbrellas used for gliding in the sky. The present invention relates to a glide device cloth.

(Prior Art) In recent years, gliding sports such as skydiving, hangriders, and paragliders have become popular, and high-density woven fabrics, which are plain weave fabrics, have been used as materials for these devices.

(Problems to be Solved by the Invention) However, such a high-density woven fabric is heavy and bulky, and also has a weak point in terms of strength and tear strength, and is stronger, lighter, less bulky, and more compact. There is a strong demand to provide a cloth for gliding devices that is easy to carry and has high safety.

In view of such a situation, the present invention is to provide a cloth for a gliding device, which is lightweight and strong, has high tear strength, is compact, and has excellent gliding performance and high safety.

(Means for Solving the Problems) In order to achieve such an object, the present invention employs the following configurations. That is, the cloth for gliding device of the present invention, at least one surface of a plain woven fabric having a lattice-like ridge having a high yarn density in a ground structure made of synthetic fiber filament yarn having a total fineness of 20 to 70D is covered with a synthetic resin film. The warp and weft ridges are formed by aligning 2 to 5 ground yarns, and the aligned yarns are 1 to
It consists of 5 continuous fabrics and has a tear strength of 1.6 kg or more by the single tongue method and a basis weight of 25 to 7
It is characterized by being in the range of 0 g / m ² .

(Operation) In the present invention, sports such as skydiving, hang-riding, and paragliding that glide in the open air have become popular in recent years, but on the other hand, the risk is extremely high, and the safety is checked. Is a particularly important issue. Its safety depends on the devices used in these sports, namely parashuts, gliders,
It depends on the fabric characteristics that make up gliding devices such as canopies.

Therefore, the present inventors have developed a cloth for flying having a light and durable woven structure, which has high tear strength, is excellent in compactness, and is excellent in gliding performance, and has a highly safe cloth for gliding devices. As a result of diligent studies on what can be provided, it was clarified that a composite material of a plain woven fabric having a lattice-like ridge having a high thread density in the ground structure and a synthetic resin film satisfies such characteristics.

Fibers mainly composed of polyamide and polyester are used as the synthetic fiber filaments in the present invention, but the toughness (strength and elongation product) of the gliding cloth is large, the load dispersibility is good, and it is tough. The polyamide fiber is preferred from the viewpoints that the permanent set is extremely small, the shape recoverability is good, and the specific gravity is small and light. Particularly, nylon 66 fiber is suitable.

Among the polyester fibers, a bright fiber having a small amount of titanium oxide is preferably excellent in flexibility and vivid color and exhibits an effect of enhancing weather resistance (light).

In addition to such polyester fibers and polyamide fibers,
For example, the initial elastic modulus is at least 200 g / d, preferably 350 g
A filament having a property that the tensile strength is 12 g / d or more, preferably 20 g / d or more at / d or more is also preferably used. Examples of such filaments include high-strength polyvinyl alcohol fibers, high-strength acrylonitrile fibers, and wholly aromatic polyamide fibers formed by being drawn at a high ratio. Further, polysulfone fiber, polysulfide fiber and the like having excellent heat resistance can also be used.

As such synthetic fiber filaments, those having a single yarn fineness of 2 to 10 d, particularly preferably 3 to 6 d are used.
The total fineness of the yarn is 20 to 70D, preferably 30 to 50D.
Those in the range of are used. These finenesses are preferably used in forming a lightweight, non-bulky fabric.

It is important in terms of safety that the cloth for gliding devices of the present invention has a tear strength of 1.6 kg or more, preferably 2.0 kg or more as measured by the single tongue method. That is, tear strength is 1.6k
If it is less than g, the fabric may be torn and stalled depending on the wind speed during gliding.

Further, as the glide device cloth of the present invention, a cloth having an elongation in the bias direction under a load of 5 pounds of preferably 1 to 30%, particularly preferably 3 to 20% is used. The fabric in which the elongation is in the range has excellent shape retention and the hardness of the fabric is well balanced, but if the elongation is too low, the fabric becomes stiff and paper-like,
The tear strength tends to decrease. On the contrary, the elongation
If it exceeds 30%, the fabric tends to be too soft, resulting in poor shape retention (dimensional stability) of the fabric and deterioration in gliding performance.

As the glide device cloth of the present invention, more preferably,
Breaking strength at a width of 5 cm is 17-80 kg, further 25 kg-60 k
g, and the elongation at break is preferably 5 to 60%, more preferably 10 to 50%. The cloth having such performance exhibits further excellent characteristics in gliding performance and safety.

In such a glide device cloth, the air permeability is more preferably 50 cc / cm ² / sec or less, and more preferably 0.1 cc / cm ² /
Seconds or less, particularly preferably 0 to 0.01 cc / cm ² / sec is used.

That is, if the air permeability is too high, the descent rate is too high, which is dangerous, and if the air permeability is too low, it means that the amount of resin is large and the fiber density is large, so the fabric weight (weight per unit area) And the possibility of providing a fabric having a poor glide performance is high.

In order to achieve such characteristics, the present invention employs a plain woven fabric having ridges in a grid pattern.

Such a plain woven fabric has warp and weft yarns every two to five aligning yarns (rib yarns) and has a lattice stripe (ripstop portion: ridge) on the cloth surface. The plain woven fabric having the grid-like ridges has a woven structure in which the thread density is higher than that of the ground structure in the ridges.

INDUSTRIAL APPLICABILITY The present invention can provide a fabric having a high tear strength by exhibiting an excellent tear propagation inhibiting property even though it is a thin fabric by providing a ridge portion having a high yarn density intermittently in the ground structure.

This tear strength is an element that exerts the ability to counter the extremely strong force exerted on the fabric, such as when being blown by a gust of wind.
In the present invention, it is a measure of safety. In the present invention, the yarn density of the ridges is preferably in the range of 2 to 25 times, more preferably 3 to 9 times the ground texture in order to enhance the tearing property. That is, the structure of the ridge (rip stop) is composed of 1 to 5 ripstops in the warp and weft directions, preferably 2 to 3 ripstops. As described above, the number of threads (rib threads) in one rip stop in the weft direction is 2 to 5, and preferably 3 as described above. The size of the rip stop portion (lattice) is preferably 4 to 12 pieces / inch in both the warp and weft directions, and more preferably 5 to 8 pieces / inch.

It is desirable that the fineness of the filament forming the rip stop and the fineness of the filament forming the ground structure are the same. For example, in the case of a different fineness, there is a tendency that irregularities are largely expressed on the surface and the gliding property and maneuverability are deteriorated, and in extreme cases, voids may be formed in the film.

If the fabric weight (fabric weight) (including resin processing) of the cloth for gliding devices of the present invention is too large as a whole, the sliding property is impaired by its own weight. For example, the paraglider cross is
Since the fabric is for flying in the state of floating high in the air against gravity, the lighter the basis weight, the better the glide. In addition, in the usual case, the paraglider is often carried to a high place, especially a high mountain area, and glide from there. From these requirements, it is important that the gliding device cloth be lightweight and not bulky. For this reason, the fabric used in the gliding device of the present invention has a basis weight of 25 to 70 g / m ² , preferably 30 to 60 g / m ² .
Uses an extremely light weight of m ² .

The cloth for a gliding device of the present invention uses the above-mentioned specific plain woven fabric, and this cloth is further coated with a synthetic resin film on at least one side. This improves the air permeability (filling), recovery elasticity, light resistance, cold resistance, transparency and tear strength of the fabric.

Examples of such synthetic resin include acrylic resin, urethane resin, silicone resin, polyamide resin,
Examples thereof include synthetic resins such as polyester resins and polyimide resins.

Among these resins, those having excellent flexibility, adhesiveness, recovery elasticity, light resistance, transparency and the like are preferably used as the coating. For example, when a heat resistant coating is desired, a polyamide resin, for example, "Nomex" (manufactured by DuPont),
A coating film of a polyimide resin such as "Kapton" (manufactured by DuPont) can be preferably used, and these various resin coating films can be laminated according to required characteristics. For example, heat resistance can be improved by arranging a heat resistant resin coating on the outermost surface layer to protect the high strength coating and perform adhesive lamination.

Among these resins, a coating film made of a resin in which at least one selected from acrylic resin and urethane resin is combined with silicone resin is flexible, adhesive, recovery elastic, light resistance, transparency, etc. From the point of, it is preferably used.

The above acrylic resin is thermosetting, rigid and high
Hard acrylic resin showing Tg (glass transition point), low Tg
There are soft acrylic-based resins, and copolymer resins in which these are combined.

Among such acrylic resins, butyl acrylate /
Copolymer resins such as methyl acrylate-based and ethyl acrylate / methyl methacrylate-based resins are preferable because they can provide a cloth having the above-mentioned various performances in balance.

In the present invention, those obtained by cross-linking these acrylic copolymer resins with a cross-linking agent are preferable because toughness is further added.

A polyisocyanate compound is preferably used as the crosslinking agent. Such crosslinking agents include 2-hydroxyethyl methacrylate and acrylic acid 2 as crosslinking accelerators.
-A hydroxyl group-containing monomer such as hydroxylethyl can be blended.

Such cross-linking acrylic copolymer resin forms a tough film, but among them, 100% modulus is preferably in the range of 5 to 50 kg / cm ² , and further, adhesiveness, recovery elasticity, weather resistance (light, Those having excellent performances such as coldness and transparency are preferably used.

As the polyurethane resin, there are polyurethane for wet processing and polyurethane for dry processing, but polyurethane for dry processing is preferably used because it has excellent film physical properties.

Examples of such polyurethanes include one-component polyurethanes and two-component polyurethanes obtained by polyaddition reaction of polyisocyanate and polyol. Particularly, one-component polyurethanes composed of polycarbonate diol and aliphatic isocyanate or aromatic isocyanate are It is preferably used because of its hydrolyzability, recovery elasticity, weather resistance and processability.

Among these polyurethane-based resins, those having a 100% modulus in the range of ²⁰ to 150 kg / cm ² are particularly preferable because they are excellent in the above various performances.

The above silicone-based resin exerts an effect of imparting softness and smoothness and water repellency, but in addition to such an action, it improves the adhesiveness of polyurethane-based resin and acrylic resin, and further, tear strength and recovery elasticity of cloth. , A resin used to improve performance such as weather resistance (light) resistance. In particular, it has a property of exerting an excellent effect on an acrylic resin.

Examples of such silicone resins include oils of dimethylpolysiloxane and methylhydrogenpolysiloxane or emulsions thereof, and modified silicones thereof, such as amino-modified silicones and alcohol-modified silicones.

For example, in the synthetic resin coating of the present invention, a second layer coating made of urethane resin is provided on a first layer coating made of acrylic copolymer resin containing silicone resin to form a two-layer laminated structure. The cloth made of such a resin film has a good balance of air permeability of the cloth, strength, particularly tear strength, shape retention and shape recovery, and can improve safety during gliding and gliding performance. .

Such a synthetic resin film can be formed on one surface or both surfaces of the cloth by a method such as a resin film transfer method or a coating processing method.

The thickness of such a coating is preferably thin in view of the basis weight, but a thickness of preferably 1 to 100 μm, more preferably 3 to 20 μm exhibits balanced performance.

In the glide device cloth of the present invention, preferably, hard finishing resin processing is performed before the synthetic resin film is formed.
When such resin processing is applied, the elongation of the cloth is further suppressed, so that the shape retention is improved. Examples of the resin for hard finishing include thermosetting resins such as melamine-based derivative compounds, reactive acrylic ester resins, polyacrylic amide-based resins and vinyl acetate-based resins having a reactive group, and resins in combination with these. Among these resins, melamine resins, for example, melamine resins having a methylol group, a hydroxyl group, a methoxymethylene group, an ethoxymethylene group, a carbinol group, a human diroxyethylene group, a hydroxypropylene group, etc. as N-substituted functional groups are Among them, methylolmelamine is particularly preferable. The thermosetting resin is used in an amount of preferably 1 to 10% by weight, more preferably 3 to 7% by weight based on the weight of the woven fabric. If necessary, these thermosetting resins may be mixed with a crosslinking agent suitable for the resin used.

After the synthetic resin film forming process or the hard finish resin process, preferably, a silicone resin process can be performed. By performing such a resin process, the tear strength of the fabric can be further improved.

Furthermore, when a coating processing method is used to form a synthetic resin film, it can be treated with a fluorine-based resin before the coating processing, preferably as a method for preventing the backing of the cloth of the coating resin. This fluororesin can be processed in combination with a hard finishing resin.

Furthermore, if necessary, an ultraviolet absorber and a radical scavenger can be added to a resin solution for forming a synthetic resin film or resin processing before and after the processing, and the weather resistance (light) resistance can be improved by such an agent. .

Examples of such agents include phenolic radical scavengers, benzotriazole ultraviolet absorbers and benzophenone ultraviolet absorbers.

Further, if necessary, before or after the resin processing as a pretreatment before the synthetic resin film forming processing, a hot press roll treatment can be further applied, whereby the air permeability can be further controlled, and It is possible to prevent the backing of the cloth of the resin for coating and to impart the flatness of the cloth surface.

Such hot press roll treatment conditions include a temperature not lower than the softening point and lower than the melting point of the synthetic resin or fiber used, for example, 100 to 220 ° C.
In a pressure of 20kg / cm ² ~120kg / cm ² are preferably used. If the heating temperature is lower than the softening point of the resin, it is difficult to control the air permeability and flatness, and if the heating temperature exceeds the melting point, embrittlement of the resin or fiber begins. If the pressing pressure exceeds the above range, it is difficult to adjust the flatness and air permeability, and particularly if it exceeds 120 kg / cm ² , processing wrinkles are likely to occur and the quality is deteriorated.

The glide device cloth of the present invention is light and strong, is not bulky, and is excellent in tear strength, safe and durable,
It has excellent gliding properties.

The present invention will be further described with reference to the following examples.

(Example) The data in the examples are evaluated by the following methods.

(1) Air permeability: Measured according to JIS L-1096-A method (method using a Frazier type tester).

(2) Tear strength: Measured by JIS L-1096-A1 method (single tongue method).

(3) Bias elongation under a load of 5 pounds Prepared as a test piece with a width of 5 cm and a length of 50 cm in the bias direction. This was a constant speed extension type tensile tester under the conditions of a pulling speed of 50 mm / nim gripping interval of 400 mm. The elongation at a load of 5 pounds was read on a recording paper.

(4) Breaking strength / elongation: JIS L-1096 method A test piece having a width of 5 cm and a length of 30 cm was sampled in the weft direction,
The test piece in the warp direction was taken so that the warp length was parallel, and the test piece in the weft direction was taken so that the length direction was parallel to the weft.
The tensile elongation at break was measured with a constant-speed elongation type tensile tester under the conditions of 0 mm / min and a gripping interval of 200 mm, and the strength and elongation at break were read on a recording paper.

Example 1 A plain lattice woven fabric was woven using nylon 6.6 filament yarn having a single yarn fineness of 3d and a total fiber degree of 30D as warp and weft. In the woven fabric, the number of ripstops in the warp and weft directions of the ripstop structure is two, and the number of threads (rib threads) in each ripstop is two. The woven fabric was subjected to usual scouring, intermediate heat setting, and dyeing, and then, in order to reduce the air permeability of the woven fabric, a heat processing roll treatment was performed at a temperature of 190 ° C. and a pressing pressure of 60 kg / cm ² by a calendering machine. After that, the surface of the woven fabric, which had been reduced in gloss by heat and pressure roll treatment, was coated with the following formulation and conditions.

[Coating resin formulation] Toa Akron XE1266 80 parts by weight [Acrylic resin: Toa Paint Co., Ltd.] Toa Akron XE1345 20 parts by weight [Acrylic resin: Toa Paint Co., Ltd.] Dimethylpolysiloxane 10 parts by weight Polyisocyanate [Crosslinking agent] ] 2 parts by weight Toluene [organic solvent] 15 parts by weight (viscosity: 7000 to 8000 cps.) The above prepared coating liquid was applied by a floating knife coater at a coating amount of about 30 g / m ² . This was dried with hot air at 120 ° C. for 1 minute. Then, the finishing set was performed at 180 ° C. for 30 seconds.

As shown in Table 1, the obtained fabric had a basis weight (fabric weight) of 44 g / m ² and had an extremely low air permeability, and had an appropriate bias elongation under a load of 5 pounds and a tear strength of 1.6 kg or more. Moreover, good recovery elasticity (stretch back property) was obtained.

When the canopy part of a paraglider was formed using this cloth and actually glide, the shape retention of the wing and the glide were excellent.

Example 2 The same grid-like plain weave woven in Example 1 was subjected to ordinary scouring, intermediate heat setting, dyeing and hot pressing roll treatment in the same manner as in Example 1. Then, resin processing was performed under the following prescription and conditions.

[Hard finish resin formulation] Sumitex Resin M-3 2 parts by weight [Melamine resin Sumitomo Chemical Co., Ltd.] Asahi Guard AG-710 1 part by weight [Fluorine resin Asahi Glass Co., Ltd.] Sumitex Accelerator ACX [Catalyst Sumitomo] Chemical Co., Ltd.] 0.3 parts by weight Cimethylpolysiloxane 4 parts by weight Water 92.7 parts by weight [Processing conditions] Padding: 2 dips × 2 nips (pick up: 30%) Drying: 120 ° C. × 1 min Curing: 180 ° C. × 1 Next, coating was performed under the following prescription conditions.

[Coating resin formulation] Resamine NE8883HV 100 parts by weight [Urethane resin Dainichiseika Co., Ltd.] Resamine NE crosslinking agent 5 parts by weight [Polyisocyanate Dainichiseika Co., Ltd.] Cimethylformamide 25 parts by weight [Solvent] (viscosity: 8500 to 10000 cps) The above prepared coating liquid was applied by a floating knife coater at a rate of about 30 g / m ² (wet). This was dried at 120 ° C. for 1 minute with hot air, and further post-treated with a silicone-based softening agent and a water repellent.

[Water repellent treatment formulation] Toray Silicone SH1107 0.4 part by weight [Toray Silicone Co., Ltd.] Toray Silicone SH8011 0.6 part by weight [Toray Silicone Co., Ltd.] Toray Silicone SH 23K 0.012 part by weight Mineral Terpen 99.0 part by weight Finishing set at 180 ° C × 30 seconds.

The obtained fabric has very low air permeability as shown in Table 1, and also has low bias elongation under a load of 5 pounds.
Moreover, the tear strength was 1.6 kg or more, and it had good morphological stability and safety.

When the canopy part of the paraglider was formed using this cloth and glide was actually performed, the shape retention of the blade and the glide were excellent as in Example 1.

Example 3 The same checkered plain woven fabric woven in Example 1 was subjected to ordinary scouring, intermediate heat setting, dyeing and hot pressing roll treatment in the same manner as in Example 1. Then, resin processing was performed in the same manner as in Example 1 according to the following formulation and conditions.

[Hard finishing resin formulation] Sumitex Resin M-3 5 parts by weight [Melamine resin: Sumitomo Chemical Co., Ltd.] Sumitex Accelerator ACX [Catalyst: Sumitomo Chemical Co., Ltd.] 0.5 part by weight Dimethylpolysiloxane 2 parts by weight Water 92.5 parts by weight [Treatment conditions] Padding: 2 dips × 2 nips (pick up 30%) Drying: 120 ° C. × 1 minute Curing: 180 ° C. × 1 minute Next, as in Example 1, the fabric was subjected to the following formulation and conditions. It was coated with.

[Undercoating resin formulation] Chris Coat P1130 40 parts by weight [Acrylic resin: Dainippon Ink Co., Ltd.] Chris Coat P1330 50 parts by weight [Acrylic resin: Dainippon Ink Co., Ltd.] Dimethyl polysiloxane 10 parts by weight Polyisocyanate [Crosslinking agent] 3 parts by weight Toluene 20 parts by weight (Resin viscosity: 8500 to 9000 cps) [Processing conditions] Coating method: Floating knife method Coating amount: 20 to 25 g / m ² (wet) Drying conditions: 120 ° C x 2 minutes [ Top coating resin formulation] Crisbon 2116 EL 100 parts by weight [Urethane resin: Dainippon Ink and Chemicals, Inc.] Toluene 10 parts by weight Ethyl acetate 10 parts by weight Dimethylformamide 10 parts by weight Polyisocyanate [crosslinking agent] 3 parts by weight (Resin viscosity: 9000~10000cps) [process conditions] coating method: floating knife method applied amount: 20~25g / m ² (wet) drying conditions: 120 ° C. × 2 minutes further, Recone system flexible, conducting the subsequent processes by water repellent.

[Water repellent treatment formulation] KS-724-A 3 parts by weight [Silicone type softening agent, water repellent, Shin-Etsu Chemical Co., Ltd.] D-9 [Catalyst] 1.2 parts by weight Mineral pentane 100 parts by weight It was carried out at 30 ° C for 30 seconds.

As shown in Table-1, the obtained fabric has a basis weight (fabric weight) of 47 g / m ² , tear strength of 2.0 kg or more, and air permeability of 0.01 cc /
cm ² / sec or less, bias elongation under 5 pound load is also small,
It had safety and good morphological stability.

Example 4 Nylon 6.6 filament yarn having a single yarn fineness of 3d and a total fineness of 30D was used as a warp, and nylon 6.6 filament yarn having a single yarn fineness of 2.94d and a total fineness of 50D was used as a weft to fabricate a lattice plain woven fabric.
In the woven fabric, the number of ripstops in the warp and weft directions of the ripstop structure is two, and the number of threads (rib threads) in each ripstop is two. The woven fabric was subjected to ordinary scouring, intermediate heat setting, dyeing and hot pressing roll treatment in the same manner as in Example 1. Then, the same resin processing, coating processing, softening processing, and finishing setting as in Example 3 were performed.

As shown in Table 1, the obtained fabric is light with a fabric weight of 56 g / m ² or less, tear strength of 2.0 kg or more, air permeability of 0.01 cc / cm ² / sec or less, and bias elongation under a load of 5 pounds. It was small, safe and had good morphological stability.

Example 5 A lattice-shaped plain woven fabric was woven by using nylon 6.6 filament yarn having a single yarn fineness of 3d and a total fineness of 30D as warp and weft. The number of ripstops in the warp and weft directions of the ripstop structure in the woven fabric is 1 each, and the number of yarns (rib yarns) in each ripstop is 3 in the warp and weft directions. The woven fabric was subjected to ordinary scouring, intermediate heat setting, dyeing and hot pressing roll treatment in the same manner as in Example 1. Then the next prescription,
Resin processing was performed under the conditions.

[Hard finishing resin formulation] Sumitex Resin M-3 5 parts by weight [Melamine resin: Sumitomo Chemical Co., Ltd.] Sumitex Accelerator ACX [Catalyst: Sumitomo Chemical Co., Ltd.] 0.5 parts by weight Dimethylpolysiloxane 4 parts by weight [ Treatment conditions] Padding: 2 dips x 2 nips (pick up: 30%) Drying: 120 ° C x 1 minute Curing: 180 ° C x 1 minute Next, one side of the woven fabric was coated with the following formulation and conditions. .

[Undercoating resin formulation] Toacron XE1266 30 parts by weight [Acrylic resin: Toa Paint Co., Ltd.] Toacron XE1345 70 parts by weight [Acrylic resin: Toa Paint Co., Ltd.] Polon coat 7 parts by weight [Polysiloxane: Shin-Etsu Chemical Co., Ltd. Co., Ltd.] Polyisocyanate [Crosslinking agent] 2 parts by weight Toluene 20 parts by weight (Resin viscosity: 7000 to 8000 cps) [Processing conditions] Coating method: Floating knife method Coating amount: 20 to 25 g / m ² (wet) Drying conditions: 120 ° C x 1 minute [Top coating resin formulation] Remisant ME8200LP 100 parts by weight [Polycarbonate urethane resin: Dainichiseika Co., Ltd.] Polyisocyanate [Crosslinking agent] 3 parts by weight Ethyl acetate 20 parts by weight (Resin viscosity: 7000- 8000cps) [Treatment conditions] Coating method: Floating knife method Coating amount: 20-25g / m ² (wet) Drying conditions: 120 ℃ × 1 minute After that, finish Setting was performed at 180 ° C for 30 seconds.

As shown in Table-1, the obtained fabric has a very light weight of 38 g / m ² , an air permeability of 0 to 0.01 cc / cm ² / sec, and a tear strength of
It was as good as 2.0 kg or more, and the elongation in the bias direction under a load of 5 lbs was 8.8%. Further, the stretch back property and the adhesion of the marking cloth were also good.

Example 6 A lattice-shaped plain woven fabric was woven using polyester fiber filament yarns having a single yarn fineness of 5d and a total fineness of 30D as warps and wefts. The number of ripstops in the woven fabric and the weft direction in the woven fabric is 1 for each ripstop.
The number of threads (rib threads) in the book is three in the warp direction and three in the weft direction. The woven fabric was scoured in the same manner as in Example 5, intermediate heat set,
Dyeing, hot pressing roll treatment, resin processing, coating processing, and finishing set were performed in order.

As shown in Table 1, the obtained fabric had good air permeability, tear strength, and elongation at a load of 5 pounds.

Comparative Example 1 A plain plain fabric having no ripstop structure was woven by using nylon 6.6 filament yarn having a single yarn fineness of 3d and a total fineness of 30D as the weft and the weft. The woven fabric was subjected to ordinary scouring, intermediate heat setting, dyeing, and hot pressing roll treatment in the same manner as in Example 2, and thereafter, the same urethane resin alone coating as in Example 2 was performed without performing resin processing with a melamine resin. Processing was performed. Then, finishing heat setting was performed at 180 ° C. for 30 seconds.

The obtained cloth has a basis weight of 44 g / as shown in Table 1.
Te m ^2, tear strength is poor in safety below 0.5~0.8kg and 1.6 kg, even elongation bias direction under 5 lbs load 37
It was as high as%.

A paraglider canopy part was formed using this cloth, and a glide test was conducted. It was confirmed that cracks were formed in the blade under gust conditions and that the cracks propagated, significantly reducing the glide property.

(Effect of the Invention) The cloth for gliding device of the present invention is light and durable, is not bulky, has excellent tear strength, is safe, has excellent durability and gliding properties, and is extremely easy to carry. It has the characteristic of being

Continuation of the front page (51) Int.Cl. ⁵ Identification code Office reference number FI Technical display area D06M 15/263 15/564 15/643 D06M 15/564

Claims (5)

[Claims] 1. A plain fabric having a lattice-like ridge with a high yarn density in a ground structure made of synthetic fiber filament yarn having a total fineness of 20 to 70D, at least one side of which is coated with a synthetic resin film. The ridge portion is composed of yarns formed by aligning 2 to 5 ground yarns, and further 1 to 5 of the aligned yarns are continuously structured, and the fabric is torn by the single tongue method. A glide device cloth with a strength of 1.6 kg or more and a basis weight in the range of 25 to 70 g / m ² . 2. The glide device cloth according to claim 1, wherein the ground structure is made of synthetic fiber filament yarn having a single yarn fineness of 2 to 10d. 3. The glide device cloth according to claim 1, wherein the synthetic resin is a combination of at least one selected from an acrylic resin and a urethane resin and a silicone resin. 4. The cloth for gliding devices according to claim 1, wherein the synthetic resin film comprises a urethane resin coating layer provided on an acrylic resin film layer containing a silicone resin. 5. The cloth for gliding devices according to claim 1, wherein the plain fabric is resin-processed with a thermosetting resin.