JP2997392B2 - Fluororesin-coated fiber and method for producing the same - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fluororesin-coated fiber having a heat-fired layer of a fluororesin on a bulky yarn made of a heat-resistant filament (filament yarn) and a method for producing the same. More specifically, for example, trains, buses, aircraft,
The present invention relates to a fluororesin-coated fiber useful for a flame-retardant or non-flammable interior material such as a hotel, and a method for producing the same.

[0002]

2. Description of the Related Art A bulky yarn is generally a yarn produced by giving fine crimps to a filament yarn by mechanical means and fixing the shape by a method such as heating. For example, a bulky yarn made of glass fiber is made by applying bulkiness to a glass filament yarn by air jet and giving it various bulky properties, and what is called bulky yarn, sliver yarn or fancy yarn is made depending on the processing method. ing. These yarns have excellent properties such as flame retardancy, non-combustibility, bulkiness, heat insulation, and flexibility, and are used for applications such as heat insulation cloths, curtains, and filter bag cloths to be attached to doors and walls. However, all of these uses are difficult to wash, and therefore require especially antifouling properties.

Hitherto, a technique of impregnating or coating a heat-resistant fiber with a fluororesin has been known. Filaments, twisted yarns, spun yarns and the like are impregnated and coated with a fluororesin to improve antifouling properties, chemical resistance, and sewing properties. Yarns with improved UV resistance and the like are commercially available. Further, a manufacturing method thereof is also proposed in Japanese Patent Publication No. 4-016339. In these methods, twisted or bundled filaments are coated with a fluororesin liquid, for example, polytetrafluoroethylene resin (PT).
(FE resin), and then continuously immersed in an aqueous dispersion of the fluororesin, remove excess fluororesin liquid with a doctor blade, squeezing roll or die, etc., control the amount of fluororesin deposited, and then dry and bake. A method of performing heat treatment in a furnace and continuously winding the same is employed.

[0004]

However, in the case of bulky yarns (bulky yarns), when the fluororesin solution is impregnated and coated by a conventional method, and the excess adhering liquid is removed only with a squeezing roll or a doctor blade, the processed yarns become bulky. The crushed fibers lose their bulkiness, and then are heated and dried and fired in the same shape, so that the baked coated fibers become flat, stiff, or irregular in shape, and have an original bulkiness and texture. Was lost. The state in which the bulkiness is lost is also greatly affected by the amount of the adhered fluororesin, and as the amount of adhesion increases, there is a problem that the bulkiness and texture are also lost, and the fibers become harder and cannot be used as fibers.

[0005] In order to solve the above-mentioned conventional problems, the present invention provides a bulky processed yarn made of a heat-resistant long fiber (bulky property).
An object of the present invention is to provide a fluororesin-coated fiber having a calcined layer of a fluororesin on its surface without losing its properties, and a method for producing the same.

[0006]

In order to achieve the above object, a fluororesin-coated fiber of the present invention is a fiber obtained by coating a surface of a bulky yarn made of heat-resistant long fiber with a fluororesin, Including the processed yarn in the dispersion containing the resin
Immersion, and then the excess adhesion amount of the dispersion using wind pressure
Removed Te, by firing then substantially and uniformly coated with the fluorine resin on the surface of the textured yarn
It is characterized by the following.

In the above, it is preferable that the adhesion rate of the fluororesin is in the range of 8 to 70% by weight calculated by the above equation (Equation 1) .

Further, in the above, the fluororesin is
Trafluoroethylene resin (PTFE resin), tetrafluoro
Ethylene-hexafluoropropylene copolymer (FEP)
Resin), tetrafluoroethylene-perfluorovinyl A
Ter copolymer (PFA resin), polyvinylidene fluoride
(PVDF resin), ethylene-tetrafluoroethylene
Polymer (ETFE resin), ethylene-chlorotrifluoro
A small amount selected from ethylene copolymer (ECTFE resin)
Preferably at least one. In the above,
Preferably, the heat-resistant long fiber is at least one fiber selected from glass fiber, polyimide fiber, aromatic polyamide fiber, and carbon fiber. The carbon fibers include carbon fibers, flame-resistant fibers, graphitized fibers, and the like.

In the above, it is preferable that a colorant is present in the fluororesin coated on the surface. Next, the method for producing a fluororesin-coated fiber of the present invention involves impregnating a bulky yarn made of a heat-resistant long fiber in a dispersion containing an unfired fluororesin, and then using excess pressure of the dispersion using wind pressure. It is characterized by being removed and then heated and fired.

[0010] In the above, after the bulky yarn made of heat-resistant filaments is impregnated with a dispersion containing an unfired fluororesin, the fluororesin-attached filaments are squeezed to remove a part of the excess deposits. It is preferable to remove the excess adhered portion by using wind pressure.

In the above, it is preferable that the method of removing the excess adhesion of the dispersion liquid containing the unfired fluororesin using the wind pressure is by suction means. In the above, the fluororesin is a polytetrafluoroethylene resin (PTFE resin), a tetrafluoroethylene-hexafluoropropylene copolymer (FEP resin), a tetrafluoroethylene-perfluorovinyl ether copolymer (PFA resin), Vinylidene (PVDF resin), ethylene-tetrafluoroethylene copolymer (ETFE resin),
Ethylene-chlorotrifluoroethylene copolymer (ECT
FE resin).

[0012]

SUMMARY OF] According to a fluororesin-coated fiber structure of the present invention described above, the fluorine resin-coated fibers, made of a heat-resistant long fiber bulk
A fiber in which the surface of a highly processed yarn is coated with a fluororesin,
Impregnated with the processed yarn in a dispersion containing unfired fluororesin
Then, the excess adhesion of the dispersion is removed using wind pressure.
By removing and then heating and firing, the fluororesin
From the <br/> that substantially and uniformly coated on the surface of the textured yarn, the baking layer of a fluororesin on the surface without losing bulked yarn bulkiness of the heat-resistant long fibers (loft) Having a fluororesin-coated fiber. Further, thereby, it is possible to realize a coated fiber having the water repellency, antifouling property, nonflammability, chemical resistance, and the like inherently possessed by the fluororesin, in addition to the heat resistance, without impairing the characteristics such as texture and flexibility.

In the above, according to a preferred example in which the adhesion rate of the fluororesin is in the range of 5 to 70% by weight calculated by the above formula (Equation 1), the bulkiness (bulky property) is further improved.
A coated fiber having the water repellency, antifouling property, nonflammability, chemical resistance, and the like of a fluororesin, in addition to heat resistance, can be realized without impairing the characteristics such as texture and flexibility. Note that the adhesion rate in the above equation (Equation 1) has the same meaning as the existence rate.

Further, in the above, the fluororesin is
Trafluoroethylene resin (PTFE resin), tetrafluoro
Ethylene-hexafluoropropylene copolymer (FEP)
Resin), tetrafluoroethylene-perfluorovinyl A
Ter copolymer (PFA resin), polyvinylidene fluoride
(PVDF resin), ethylene-tetrafluoroethylene
Polymer (ETFE resin), ethylene-chlorotrifluoro
A small amount selected from ethylene copolymer (ECTFE resin)
According to a preferred example of at least one, water repellency,
Antifouling property, nonflammability, chemical resistance, etc. can be imparted.

[0015] In the preferred embodiment, the heat-resistant long fibers are at least one fiber selected from glass fibers, polyimide fibers, aromatic polyamide fibers, and carbon fibers. It is possible to form a coating by baking the fluororesin using a heat-resistant long fiber which has been difficult to form by baking the fluororesin without damage. It is particularly useful for long glass fiber bulky processed yarn.

In the above, according to the preferred example in which the colorant is present in the fluororesin coated on the surface, various colors and patterns can be exhibited, and the commercial value can be enhanced.

Next, according to the production method of the present invention, the dispersion containing the unsintered fluororesin is impregnated with a bulky yarn made of heat-resistant long fiber, and the excess adhesion of the dispersion is then measured using wind pressure. Removed and then heated and baked, so that it does not impair bulkiness (bulkyness), texture, flexibility, etc., and has a water-repellent, antifouling, nonflammable, chemical-resistant coating. Fibers can be efficiently and rationally manufactured. That is, by removing the surplus adhered portion of the fluororesin dispersion liquid using the wind pressure, the fluororesin can be uniformly adhered.

In the above, after the bulky yarn made of heat-resistant filaments is impregnated with a dispersion containing an unfired fluororesin, the fluororesin-attached filaments are squeezed out to remove a part of the excess deposits, and then the dispersion According to a preferred example of removing the excessively attached portion by using wind pressure, the excess amount of the fluororesin can be removed by squeezing and returned to the impregnation tank, so that the production cost can be reduced. Further, after squeezing, the excess adhesion of the dispersion is further removed by using the wind pressure, but since the wind pressure is used at this time,
The bulkiness (bulky property) of the fluororesin-attached long fiber can be kept high. That is, even if the apparent bulkiness is reduced in the first drawing step, the bulkiness is recovered in the wind pressure treatment step.

In the preferred embodiment described above, according to a preferred example in which the method of removing the excess adhered portion of the dispersion containing the unfired fluororesin using the wind pressure is by suction means, the fluororesin is further uniformly adhered. be able to. Of course, as a method of removing using wind pressure, a gas such as air can be blown.

In the above, the fluororesin is a polytetrafluoroethylene resin (PTFE resin) or a tetrafluoroethylene-hexafluoropropylene copolymer (FEP).
Resin), tetrafluoroethylene-perfluorovinyl ether copolymer (PFA resin), polyvinylidene fluoride (PVDF resin), ethylene-tetrafluoroethylene copolymer (ETFE resin), ethylene-chlorotrifluoroethylene copolymer (ECTFE) According to a preferred example of being at least one selected from (resin), water repellency,
Antifouling property, nonflammability, chemical resistance, etc. can be imparted.

[0021]

EXAMPLES The fluorine-coated fiber and the production method of the present invention will be described more specifically with reference to examples. FIG. 1 shows an example of a manufacturing process used in the present invention. In FIG. 1, a bulky processed yarn G of glass fiber is unwound from a wound package 1, passes through guide rolls 2, 3, 4, 5, and passes through a guide roll 8 present in a dispersion 7 containing a fluororesin. Guided and immersed. The dispersion liquid 7 containing the fluororesin is stored in the tank 6, and the amount of the dispersion liquid 7 attached to the bulky processed yarn G and reduced is supplied from the supply tank 9 a through the supply line 9 b. The bulky processed yarn G of glass fiber immersed in the dispersion liquid 7 containing a fluororesin,
It is pulled up toward the upper guide roll 15. Then, the surface of the glass yarn to which the fluororesin liquid has adhered is moved along the doctor roll 28, and excess fluororesin adhered is squeezed and removed. Next, in the vacuum zone 10, excess adhesion of the fluororesin dispersion is removed by wind pressure by suction. The vacuum zone 10 is connected to a vacuum pump 11a and a vacuum line 11b.
The vacuum zone 10 is formed of a wire netting, a mesh plate having pores, a pipe having slit holes, or the like, so that the bulky thread G of glass fiber passes through the outside or inside. Thereby, the adhesion rate of the fluororesin is controlled in the range of 5 to 70% by weight. In the above, by squeezing using the doctor roll 28, it is possible to remove the surplus adhesion of the fluororesin and return it to the impregnation tank, so that the production cost can be reduced. After the squeezing, the excess adhesion of the dispersion is further removed by using suction force in the vacuum zone 10. At this time, since the wind pressure is used, the bulkiness (bulky property) of the fluororesin-attached filament is increased. Can hold. That is, even if the apparent bulkiness is reduced in the first drawing step, the bulkiness is recovered in the wind pressure treatment step.

Next, the bulky glass fiber yarn G is dried.
The yarn A is dried in the yarn passing hole 14. Example of drying zone A
For example, the heater 13 is embedded in the hot plate 12,
Temperature controller T₁25 to 100 to 30
It can be adjusted in the range of 0 ° C. Then the dried glass fiber
The bulky processed yarn G is fired in the firing zone B. Firing
B is the temperature controller T_Three27 by temperature 7
It can be adjusted up to the range of 00 ° C. In addition, drying zone A and baking
Temperature controller T at the boundary of formation zone B _Two26
And control the temperature to 280-450 ° C, for example.
To Set temperature in each zone from drying to firing
The degree is the passing speed of glass fiber passing through each zone or
Optimal depending on the number of glass fibers to be supplied and the amount of adhesion
Conditions can be set. Gas from the yarn passage hole 14
Is generated, the air is exhausted by the exhaust fan 24.

The glass fiber bulky processed yarn G coated with the fluorinated resin by sintering as described above is used for the guide rolls 15 and 1.
6, 17, 18 and 19 and the tension roll 20, and are wound up by the take-up rollers 21 and 22 and the take-up roller 23. FIG. 1 shows an example of processing using one glass fiber bulky processed yarn G for easy explanation, but in practice, a plurality of, for example, about 30 to 150, processed in parallel. Is preferred.

The heat-resistant long fiber, for example, a bulky processed yarn of glass fiber can be obtained by placing a glass filament yarn in a high-speed turbulent airflow by an air jet according to a known method and forming a crimp on each fiber. The bulkiness is
It can be controlled by changing the number of crimps applied during a fixed length. These bulky yarns have excellent properties such as heat insulating properties, flexibility or resin impregnating property, texture and decoration as woven fabric, and are used for aircraft and vehicle interior materials that require heat resistance, incombustibility, etc. Used in Also, bulky yarns impregnated with or coated with a fluororesin in order to impart antifouling properties, chemical resistance, water repellency, etc. to these bulky yarns are desired. The bulkiness is lost, and it is difficult to combine the required adhesion amount to obtain the properties of the fluororesin with the bulkiness.

Further, in the case of glass fiber, it is very difficult to perform coloring from the state of the original yarn in order to impart an interior property even if bulky processing is possible, and it has sufficient heat resistance and is colorfully colored. No glass fiber has been developed. The fiber provided by the present invention is heat-resistant, bulky, antifouling,
It is a conjugate fiber having properties such as water repellency and chemical resistance and also color properties.

Hereinafter, the present invention will be described in more detail with reference to specific examples and comparative examples. (Example 1) 222 with ECDE75 1 / 2-3.8S
Tex (ECDE75 1/2 is a variety symbol in the glass fiber industry, E is alkali-free glass, C is long fiber, and DE is denier, the number of grams per 9000 m in length, 1D
E denotes a filament diameter of 6 μm), 75 1/2 denotes a strand, and 3.8S denotes 3.8 twists of S per inch. The same applies hereinafter. A) bulky yarn (bulk-processed yarn) obtained by subjecting the glass filament yarn of (1) to crimping 25 times in 10 cm intervals was used as a raw yarn.

The compression ratio of the glass yarn was measured using a compression tester (KES-FB3) manufactured by Kato Tech Co., Ltd. at an upper limit load of 50 gf / cm ² and found to be 84%. This glass yarn was processed by the manufacturing process shown in FIG. First, an aqueous dispersion of PTFE resin (AD-1 from Asahi Glass Co., Ltd.) was adjusted to have a specific gravity of 1.102 g / cc. The glass bulky yarn was immersed in the PTFE resin dispersion aqueous solution. Next, before entering the drying zone and before entering the vacuum zone, the surface of the glass yarn to which the fluororesin liquid had adhered was moved along a doctor roll to remove extra fluororesin adhering. After that, over the length of 10 to 15 mm, the surface of the PTFE-impregnated yarn was sucked at a wind speed of 8 m / sec to remove excess dispersion and at the same time adjust the amount of adhesion. Next, a drying zone temperature of 280 ° C. (residence time: about 7 seconds) and a firing zone temperature of 480 ° C. (residence time:
In about 4 seconds, the fluororesin was calcined. These series of processes were continuously performed at a linear velocity of 27 m / min. PT after firing
The amount of the FE resin attached was 25.8% by weight, and the FE resin was attached almost uniformly. As a result of measurement by the compression tester, the compression ratio was 80% of the compression ratio of the original yarn before coating with the fluororesin.
The glass yarn was impregnated with PTFE resin and fired by impregnation, and the bulky glass yarn was in a state where the constituent monofilament filament was spread, that is, it was not agglomerated. In addition, the bulkiness was maintained, and a soft and bulky yarn having a good texture was obtained in the sensory test.

(Example 2) ECDE75 2 / 4-2.
595Tex glass yarn at 8S, 20 between 10cm
The raw yarn was bulky yarn that had been subjected to up to 30 crimps.

The compression ratio of this glass yarn was 93%. The glass yarn was impregnated with a fluororesin and fired in the facility of Example 1. The specific gravity of the fluororesin is adjusted to 1.28 g / cc with a dispersion of PTFE resin (AD-1), and an inorganic pigment (EP-510, Dainichi Seika) is dispersed in 30 wt% water in this dispersion. 5 vol% of the mixed solution was mixed to prepare a colored dispersion. The glass yarn was immersed in this dispersion, and the linear velocity was 10 m / min, and the drying zone temperature was 25.
Impregnation, coating, and baking were performed at 0 ° C. and a baking zone temperature of 430 ° C.

However, the glass yarn was impregnated with the PTFE resin dispersion, the excess fluororesin liquid was removed with the doctor roll described in Example 1 before entering the drying zone, and then the surface was spread over a length of 10 to 15 mm. 6m
After suctioning at / sec to remove excess PTFE resin dispersion, heating and drying and baking were performed.

The amount of the deposited PTFE resin after calcination was 58% by weight, and the PTFE resin was adhered almost uniformly. The compression ratio measured by the compression tester was 34%. This glass yarn was impregnated with a PTFE resin colored in blue and fired to obtain a composite fiber having bulkiness, texture, water repellency and antifouling properties.

(Comparative Example 1) The same glass yarn as that of Example 2 was used, except that a step of impregnating the PTFE resin dispersion and sucking the surface before entering the drying zone to remove an excessive dispersion was not performed. Under the same conditions as in Example 1, a fluororesin-impregnated coated glass yarn was produced.

In order to keep the amount of PTFE resin attached constant, excess PTFE dispersion was removed with a doctor roll. The amount of glass yarn adhered after drying and firing the PTFE resin was 60%, and the compression ratio was 13%. The surface of this glass yarn was flat, poor in flexibility, and lost its fiber characteristics.

Comparative Example 2 PTFE having the same specific gravity as 1.10 g / cc using the same glass yarn as in Example 1.
Impregnate resin dispersion, remove excess dispersion with doctor roll and vacuum zone,
A PTFE resin impregnated coated glass yarn having an adhesion amount after firing of 3% by weight was produced. Although this glass yarn was a composite fiber having an excellent texture and flexibility, it was insufficient in chemical resistance and antifouling property, and the effect of compounding the PTFE resin was insufficient.

As described above, the composite fiber of the present embodiment has the excellent texture, flexibility and heat insulating properties unique to a bulky yarn, and the antifouling property, water repellency and water resistance of the fluororesin by being combined with the fluororesin. A composite fiber with chemical properties was produced. These composite fibers are processed into woven or knitted fabrics, interior materials that require heat resistance, noncombustibility, antifouling properties, etc. or filter bag cloths that require bulkiness and chemical resistance, coloring, fashion, etc. It can be applied to various uses that also have properties.

[0036]

According to the present invention described above, the fluororesin-coated fiber is a fiber obtained by coating the surface of a bulky yarn made of a heat-resistant long fiber with a fluororesin.
Impregnated with the processed yarn, and then the dispersion
Of excess adhesion is removed using wind pressure, and then heated and fired.
By the by fluorine resin substantially and uniformly coated on the surface of the textured yarn, baking of the fluororesin on the surface without losing bulked yarn bulkiness of the heat-resistant long fibers (loft) A fluororesin-coated fiber having a layer can be realized. Further, thereby, it is possible to realize a coated fiber having the water repellency, antifouling property, nonflammability, chemical resistance, and the like inherently possessed by the fluororesin, in addition to the heat resistance, without impairing the characteristics such as texture and flexibility.

Next, according to the production method of the present invention, the dispersion containing the unsintered fluororesin is impregnated with a bulky processed yarn made of heat-resistant long fibers, and the excess adhesion of the dispersion is then measured using wind pressure. Removed and then heated and baked, so that it does not impair bulkiness (bulkyness), texture, flexibility, etc., and has a water-repellent, antifouling, nonflammable, chemical-resistant coating. Fibers can be efficiently and rationally manufactured. That is, by removing the surplus adhered portion of the fluororesin dispersion liquid using the wind pressure, the fluororesin can be uniformly adhered. In the above, after the bulky yarn made of heat-resistant long fibers is impregnated with the dispersion liquid containing the unfired fluororesin, the fluororesin-adhered long fibers are squeezed out, a part of the excess adhesion is removed, and then the excess adhesion of the dispersion liquid According to a preferred example of removing the components using wind pressure, the excess amount of the adhered fluororesin can be removed by squeezing and returned to the impregnation tank, so that the production cost can be reduced. After the squeezing, the excess adhesion of the dispersion is further removed by using a wind pressure. At this time, since the wind pressure is used, the bulkiness (bulky property) of the fluororesin-attached long fiber can be kept high. That is, even if the apparent bulkiness is reduced in the first drawing step, the bulkiness is recovered in the wind pressure treatment step.

[Brief description of the drawings]

FIG. 1 is a process chart showing a manufacturing process according to one embodiment of the present invention.

[Explanation of symbols]

1 thread winding package 2,3,4,5,8,15,16,17,18,19,
Guide roll 6 Dispersion tank containing fluororesin 7 Dispersion liquid containing fluororesin 9a Supply tank for dispersion liquid containing fluororesin 9b Supply line for dispersion liquid containing fluororesin 10 Vacuum zone 11a Vacuum pump 11b Vacuum line 12 Hot plate 13 Heater 14 Yarn passage hole 20 Tension roll 21 and 22 Take-up roller 23 Take-up roller 24 Exhaust fan 25, 26, 27 Temperature controller 28 Doctor roll A Drying zone B Firing zone G Bulk processing yarn

────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kintoyo Yoshinori Hongo 5-13-13, Ichiriyama, Otsu City, Shiga Prefecture Intranet Co., Ltd. (56) References JP-A-60-75675 (JP, A) JP-A-57-107073 (JP, A) JP-A-3-137279 (JP, A) JP-B-4-16339 (JP, B2) (58) Fields investigated (Int. Cl. ⁷ , DB name) ) D06M 13/00-15/72

Claims (9)

(57) [Claims] 1. A fiber obtained by coating a surface of a bulky yarn made of a heat-resistant long fiber with a fluororesin, and
Impregnated with the processed yarn in a dispersion liquid containing fat,
Remove excess adhering liquid by using wind pressure and then heat
By baking, fluorocarbon resin-coated fibers, characterized in that it substantially and uniformly coated with the fluorine resin on the surface of the textured yarn. 2. The fluororesin-coated fiber according to claim 1, wherein the adhesion rate of the fluororesin is in the range of 5 to 70% by weight calculated by the following formula (Equation 1). (Equation 1) 3. The method of claim 1, wherein the fluororesin is polytetrafluoroethylene.
Resin (PTFE resin), tetrafluoroethylene-hex
Safluoropropylene copolymer (FEP resin), Tetraf
Loroethylene-perfluorovinyl ether copolymer (P
FA resin), polyvinylidene fluoride (PVDF resin),
Ethylene-tetrafluoroethylene copolymer (ETFE tree
Fat), ethylene-chlorotrifluoroethylene copolymer
At least one selected from (ECTFE resin)
The fluororesin-coated fiber according to claim 1. 4. The fluororesin-coated fiber according to claim 1, wherein the heat-resistant long fiber is at least one fiber selected from glass fiber, polyimide fiber, aromatic polyamide fiber, and carbon fiber. 5. The fluororesin-coated fiber according to claim 1, wherein a colorant is present in the fluororesin coated on the surface. 6. A process for producing a fiber in which the surface of a processed yarn made of heat-resistant long fiber is coated with a fluororesin, wherein a bulky processed yarn made of a heat-resistant long fiber is impregnated in a dispersion containing an unfired fluororesin. And a method for producing a fluororesin-coated fiber, wherein excess dispersion of the dispersion is removed using wind pressure, followed by heating and firing. 7. After impregnating a bulky yarn made of a heat-resistant long fiber with a dispersion liquid containing an unfired fluororesin, squeezing the fluororesin-adhered long fiber, removing a part of the surplus adhesion, and then removing the dispersion liquid. The method for producing a fluororesin-coated fiber according to claim 6, wherein the excess adhesion is removed using wind pressure. 8. The method for producing a fluororesin-coated fiber according to claim 6, wherein the method of removing the excess adhesion of the dispersion containing the unfired fluororesin by using wind pressure is by suction means. 9. The fluororesin is a polytetrafluoroethylene resin (PTFE resin), a tetrafluoroethylene-hexafluoropropylene copolymer (FEP resin), or a tetrafluoroethylene-perfluorovinyl ether copolymer (P
FA resin), polyvinylidene fluoride (PVDF resin),
Ethylene - tetrafluoroethylene copolymer (ETFE resin), an ethylene - chlorotrifluoroethylene fluoroalkyl ethylene copolymers at least one process for producing a fluororesin-coated textiles according to claim 6 is selected from (ECTFE resin).