JPS60126354A - Pile cloth - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to pile fabric I having excellent flame resistance and heat resistance.

It is well known that fabrics made of carbon fibers, aromatic polyamide fibers, silicon carbide fibers, silicon nitride fibers, and alumina fibers have excellent flame resistance and heat resistance.

Conventional fabrics mentioned above have non-pile textures such as plain weave and twill weave, so they can be used as flame-resistant and heat-resistant clothing for blast furnace work or welding work, or as materials for fire prevention curtains in the above-mentioned workplaces. In this case, high-temperature particles scattered during work may pass through the fabric, making it impossible to obtain a sufficient shielding effect.

In other words, each of the above fibers has a low elongation, and when made into a thread,
Due to its poor flexibility, it is difficult to use yarns made of such fibers as pile yarns, and for this reason, conventionally only fabrics with the above-mentioned structure could be woven.

Furthermore, it is extremely difficult to knit a knitted fabric using the above-mentioned fiber yarns in terms of flexibility.

Incidentally, conventionally, a rapier loom has been mainly used for weaving the above-mentioned fabric, and this loom allows weaving without going through a warping process.

Generally, in the warping process, excessive tension or uneven tension tends to occur on the yarn at bending points such as yarn guides, etc., so yarns made of fibers with low elongation as mentioned above tend to , thread breakage occurred frequently, making warping difficult.

In addition, in the case of looms other than rapier looms, such as double looms, in which the weft is driven in by a shuttle, the threads are bent each time the shuttle moves back and forth, and excessive tension is applied to the threads. However, thread breakage occurred frequently and weaving was difficult.

Threads made of flame-resistant and heat-resistant fibers such as carbon fiber have poor flexibility, which limits the types of structures that can be woven and the types of looms that can be used. etc. were impossible to obtain.

An object of the present invention is to provide a pile fabric woven or knitted using the above-mentioned fiber threads.

In other words, the present inventor points out that flame-resistant and heat-resistant fibers such as carbon fibers have low elongation but high strength, and that when the number of twists of twisted yarn is reduced, the tensile strength decreases, but the flexibility of the yarn, that is, the cushioning As a result of focusing on the point that the number of twists of a twisted yarn increases, as long as the degree of decrease in tensile strength is within the range that is compensated for by the strength of the fiber itself that makes up the twisted yarn, the number of twists of the twisted yarn increases. The inventors have discovered that it is possible to weave or knit pile fabrics by reducing the amount of cushioning and increasing the cushioning properties.

The ground yarn and pile yarn constituting the pile fabric of the present invention include carbon fiber, aromatic polyamide fiber, silicon carbide fiber,
Twisted yarn made of one or more of silicon nitride fibers and alumina fibers is used. The number of twists in the twisted yarn in this case depends on the yarn count, but it is usually 5 twists per meter.
Set within the range of 0 to 250 times. If it is less than the above range, the tensile strength of the yarn will be insufficient, and if it is more than the above range, the cushioning properties of the yarn will be poor, so weaving or knitting will be difficult in either case.

In addition, when weaving using the above twisted yarn, use a main accumulating double loom or benbelb loom, and when knitting,
Mainly uses seal milling machine.

The pile fabric of the present invention is formed using the above-mentioned twisted yarns, but its commercial value can be further increased by subjecting the pile surface, etc., to the following processing.

In other words, for example, after the pile surface has been subjected to hair splitting processing, it is then subjected to polyrasha processing, but in this case, since the above-mentioned pile fabric is made of heat-resistant fibers, its effect is not seen at the normal polyrasha processing temperature. The effect will not appear unless it is carried out at a temperature of at least 180°C or higher and the temperature is lowered stepwise.

In addition, for the same reason, the effects of brush finishing and embossing finishing do not appear at normal temperatures, so by attaching cellulose-reactive resins such as glyoxal and ethylene urea to the pile surface, ,
It becomes possible to perform mounting processing such as brush processing and embossing processing on the surface.

The pile fabric finished in this way is shown in Figure 1, in which a boa-like, long-haired pile is formed from the pile yarn (2) on the base texture made of the base yarn (1). ing.

Figure 2 shows an enlarged view of the above-mentioned pile fabric.
1), the ground texture is formed by a plain weave, and the pile yarn (2) woven into the ground texture forms a pile.

Figure 3 is an organizational chart of pile fabric formed by knitting.
The ground texture is formed by plain knitting of the ground yarn (1), and a pile is formed by the pile yarn (2) which is knitted in the ground texture.

Next, a first embodiment of the present invention will be described below.

Examples] Pile yarn: A 20 count twin yarn made of flame-resistant carbon fiber with 100 to 250 twists per meter.

Ground yarn: 35% aramid fiber, 65% flame-resistant carbon fiber blend, 30 twists per meter of 50-150 twists
Uses yarn that has been treated with liquid setting to prevent snarl at a setting temperature of 110'C with double count yarn.

Loom used: 21 double loom.

Woven pile fabric: A pile fabric with a woven density of 36 pieces/in and a pile length of 5 mm or 13M.

Finishing processing for pile fabric: After applying acrylic acid ester resin to the back of the fabric and splitting the pile surface of the fabric, the polylashing process is repeated 6 times at a temperature of 180°C.

Product: Finished width is 122cm, pile length is 5mm
The one with a width of 545y/m and the pile length of 13mm is 7
The basis weight is 75y/m width.

Characteristics: Even if flames are brought close to both sides of the fabric, it will not catch fire at all.

for! ...Industrial materials such as fire curtains.

Example 2 Pile yarn: A 1000 denier twin yarn made of long carbon fiber fibers with 50 to 150 twists per meter.

Ground yarn: Aromatic polyamide fiber, ie, Nomex (registered trademark) 20 count double yarn is used.

Loom used: 35-wing velvet loom.

Woven pile fabric...with a driving density of 76 pieces/in, 3
Nokuile fabric with a width of 8 inches and a pile length of 2 mTn.

Finishing of pile fabric: After applying acrylic acid ester resin to the back of the fabric and splitting the fabric/file side, the polylashing process is repeated four times at a temperature of 200°C.

Product: The finished product has a basis weight of 402 y/m width.

Characteristics: The velvet surface has a black luster.

Applications: insulation clothing, heat-resistant sheets, etc.

Example 3 Pile yarn: A 20 count double yarn made of flame-resistant carbon fiber with 100 to 250 twists per meter and a 20 count double yarn made of Nomex were alternately used for each course.

Base yarn: 1 warp, 20 count double yarn made of Nomex, and aromatic polyamide fiber, i.e. Kevlar 2, for the weft.
9 (registered trademark), is a 30 count twin yarn with twists of 50 to 150 twists per meter, and is liquid set at a setting temperature of 110°C to prevent snarling.

Loom used: 21-wing velvet loom.

Woven pile fabric...with a driving density of 36 pieces/in, 4
A pile fabric made of Ikkoshi weave with a width of 8 inches and a pile length of 4.5 mm.

Finishing processing for pile fabric: A slightly foamed acrylic ester resin is attached to the back of the fabric, the pile side of the fabric is split, and then polylacquered for 18 seconds.
Repeat 6 times at a temperature of 0°C.

Product: The finished product has a basis weight of 10971i1'/m width.

Characteristics: The fabric does not fray even when cut.

Application: Suitable for copying machine black and industrial materials.

Example 4 Pile yarn: Made of long fibers of carbon fiber, 1000 denier count with 50 to 150 twists per meter was used.

Ground thread: Made of flame-resistant carbon fiber, number of twists per 1m: 10
Uses 20 count double thread with 0 to 250 turns.

Loom used: 21-blade double loom.

Woven pile fabric... driving density 36/111,
Carbon fiber pile fabric with a width of 48 inches and a pile length of 10 mm.

Finishing processing for pile fabric: The back of the fabric is coated with acrylic ester resin, the pile side of the fabric is split, and the polylashing process is repeated 6 times at a temperature of 200℃, and then the pile side of the fabric is coated with Beyamin CF. -E1
5%, Catalyst M6%, Silicone S K 5%, and Scotchgard FC-2322% were applied, and molding was performed at 230°C using an embossing roll machine.

Product...The finished product has a basis weight of 5s Oy/m width.

Characteristics: Shiny, beautiful, similar to Astralon.
” Two.

Applications: Flame-resistant and heat-resistant clothing and industrial materials.

Example 5 Pile yarn: Made of a blend of 65% carbon fiber 1.5 denier staples and 35% Nomex 3 denier staples, with a twist count of 100 to 250 times per meter.
Uses count 0 double yarn.

Ground thread: 20 count double thread made of Nomex.

Loom used: 21 double loom.

Woven pile fabric: A pile fabric with a weaving density of 38 strands/in and a pile length of 5 mm.

Finishing processing for pile fabric: The back of the fabric is treated with acrylic ester, aluminum vapor-deposited, or flame-retardant silicone is applied, and the pile surface of the fabric is split with polyester. Machining at 200″C
Repeat 4 times at a temperature of

Product: The finished product has a basis weight of 605 p/m width.

Characteristics: Shiny and beautiful fabric.

Applications: Those processed with acrylic acid ester resin are ideal for flame-retardant clothing, industrial materials, and protective fabrics for cultural properties, and those processed with aluminum are ideal for fire-retardant and firefighting clothing.

Example 6 Pile yarn: 65% flame-resistant carbon fiber 1.5 denier staple, 35% aramid fiber 3 denier staple
30 count twin yarn with a blend ratio of 100 to 200 twists per meter, set temperature 110°C + trowel liquid set process to prevent snarl.

Ground thread: Use the same thread as the pile thread.

Loom used: 25 double loom.

Woven pile fabric...with a driving density of 76 pieces/in, 3
Ikkoshi pile fabric with a width of 8 inches and a pile length of 2 mm.

Finishing processing for pile fabric: After applying acrylic ester resin to the back of the fabric and splitting the pile side of the fabric, repeat the polylashing process 4 times at 180°C.

Product: The finished product has a basis weight of 430y/m width.

Characteristics: Shiny and beautiful fabric.

Applications: Industrial materials, disaster prevention clothing, disaster prevention tools, vehicle seats, protective clothing and membranes for work, mountaineering tent linings, etc.

Example 7 Pile yarn: A 20 count twin yarn made of flame-resistant carbon fiber and having 150 to 250 twists per meter.

Ground yarn: Made of long carbon fiber fibers, 1000 denier twin yarn with 50 to 150 twists per meter.

Loom used: 21 double loom.

Woven fabric: Pile fabric with a woven density of 46 strands/in, a width of 48 inches, and a pile length of 5 mm.

Finishing processing for pile fabric: After splitting the pile surface of the fabric, poly lashing is applied at a temperature of 200℃ for 6
Repeat several times.

Product: The finished product has a basis weight of 650y/m width.

Characteristics: Table 1 shows the base side made from carbon fiber of this fabric.
This pile is made of flame-resistant carbon fiber on the back side, and even when molten cast steel is poured at 1580°C in a foundry, there is no damage at all.
Flame resistant and heat insulating.

Applications: Furnace vests and flame-resistant gloves for use in high-temperature workplaces such as blast furnaces.

Example 8 Pile fabric: Made of flame-resistant carbon fiber, 20 count twin yarn with 150 to 250 twists per meter.

Ground yarn: 68 yarn count single yarn made of aromatic polyamide fiber, namely Cornex (registered trademark) navy blue, and carbon fiber 2
A thread that is aligned with the 0 count single thread.

Knitting machine used: Seal milling machine with gauge number 16.

Knitted fabric: 9 mm hair removal, 30 strands/inch
A circular knit fabric made of a single stitch structure.

Finishing processing for pile fabric: After applying acrylic acid ester resin to the back of the fabric and splitting the pile side of the fabric, the polylashing process is repeated four times at a temperature of 180°C.

Characteristics: Shiny flame-resistant knit fabric.

Applications: Flame-retardant clothing, industrial materials, furnace clothing for melting furnaces,
Ideal for firefighting clothing, collar holders, etc. Can also be used as a flame-resistant and heat-resistant table nore center.

Example 9 Pile yarn: A 20 count double yarn made of flame-resistant carbon fiber and having 150 to 250 twists per meter was used.

Ground yarn: Made of carbon fiber, number of twists per meter is 150~
Uses 30 count double thread with 250 turns.

Knitting machine used: Seal milling machine with gauge number 16.

Knitted fabric: 5. X6 file length is 13
am, circular knit fabric made of 3 stitches of 30/in.

Finishing processing for pile fabric: After applying acrylic ester resin to the back side of the fabric, and splitting the pile side of the fabric, repeat the poly lashing process 4 times at a temperature of 200℃, and then apply flea treatment to the pile side of the fabric. Kobetsuyamin L'F-s
15% and MIM6% are attached and embossed at 23
Process the corrugated structure at 5℃.

Product: Finished width is 115σ and has a basis weight of 556yZm width.

Characteristics: Beautiful black luster.

Application: As a flame-resistant and heat-resistant clothing coat.

It is optimal.

The characteristics of each fiber used in each of the above examples are listed below.

Tensile strength Molecular strength (modulus of elasticity) Elongation (@flame-resistant carbon fiber
1500. ? /d -9 carbon fiber 300 to 9Ard2
3. Ot/+d 1.3 Nomex 7762/d
-22 Kevlar 2B0 9/mA 6.3t/d 3.6 Flame-resistant carbon fiber: fired at 300°C to 400°C, electrical specific resistance 1
0 Ω pot or higher carbon content 50-60% Carbon fiber; fired at 800°C to 1500°C, electrical resistivity 10-10 Ωσ Aromatic polyamide fibers such as Nomex and Cornex; Kevlar; Aromatic polyamide fibers (aramid fibers).

Further, although not used in each of the above examples, the characteristics of the fibers belonging to the fibers described at the beginning are listed below.

Graphite fiber; fired at 2000°C or higher, electrical resistivity 10
-~109 mouths.

Silicon carbide fiber: tensile strength 250 K9/vd, modulus (elasticity $) 2ot/-8, q The raw material is dimethylchlorosilane, the composition formula is 011
(・ n3 As described above, according to the present invention, since the ground yarn and the pile yarn are twisted yarns made of one or more of carbon fibers, silicon carbide fibers, silicon nitride fibers, or alumina fibers, the twist By reducing the number and increasing the cushioning properties, it is possible to weave and knit the volume%+ pile fabric.

Since the pile fabric covers the ground structure, it has a shielding effect against small particles such as thermal particles that fly away, and because the pile increases the thickness of the fabric, heat transfer is slow, so high heat is generated. Clothes made of this fabric are suitable for workplaces where hot particles are scattered.
Alternatively, if it is used as an industrial material, such as a partition curtain in a workplace, it can prevent the spread of fire and improve worker safety.

Furthermore, when the pile surface of this fabric is subjected to poly-rashi processing, brush processing, or embossing processing, the texture becomes better and the decorative effect is also increased. Therefore, it can be used as a fireproof cloth for household use, especially in places where flames are used, such as kitchens, Buddhist altars, and stoves.

Next, specific examples of uses of the above-mentioned pile fabric will be listed.

Heat-resistant clothing, fire-retardant clothing or fire-retardant sheets for fire fighters, work clothes, gloves or curtains for industrial use, protective clothing for ships, interior materials for vehicles, interior materials for commercial use, interior materials for home use, ashtray pads, filters. , overfiltered.

[Brief explanation of drawings]

FIG. 1 is a perspective view of a pile fabric of the present invention, FIG. 2 is an enlarged perspective view of a woven fabric, and FIG. 3 is a knitting organization chart of a knitted fabric. 1... Ground thread, 2... Pile thread,

Claims (1)

[Claims] Woven or A pile fabric characterized by its knitting.