JPH04100949A - Pile ground of upholstery and the like for seat in automobile - Google Patents

Abstract

PURPOSE:To obtain the subject pile ground suitable for upholstery having hygroscopicity without giving sticky and steamy feeling by forming the pile ground protruding from base ground by stratifying to a fluff of a hydrophilic and hygroscopic fiber and a fluff of a hydrophobic and non-hygroscopic fiber in specific states. CONSTITUTION:Pile 12 protruding from base ground 11 is constructed by a fluff 13 of a hydrophilic and hygroscopic fiber and a fluff 14 of a hydrophobic and non-hygroscopic fiber. Length L' of said fluff 13 is made shorter than the length L of said fluff 14 and the subject pile ground is composed of two layers stratified to upper and lower with an inner layer 16 containing the short fluff 13 and the long fluff 14 in mixing as a pile layer 15 and a surface layer 17 comprising top end parts 19 of the long fluff 14 forming a pile face 18 by protruding on the inner layer.

Description

[Detailed description of the invention]

[Industrial Application Field] The present invention relates to pile fabrics used for clothing, tablecloths, chair fabrics, wall fabrics, wall fabrics, curtain fabrics, report books, carpets, mats, dust control products, etc. The present invention relates to a pile fabric that can be used as fabric for automobile seats, which feels stuffy especially in the hot sun, or is charged with static electricity and is susceptible to electrostatic shocks, thereby eliminating such disadvantages. [Prior Art] The present inventor alternately arranged long piles and short piles with different physical properties such as durability, texture, moisture absorption, etc., and these two types of piles with different lengths and shortnesses mutually influenced the physical properties of other piles. complement,
He invented a pile fabric (carpet) with excellent physical properties and texture, and disclosed it in JP-A-52-70170. Conventionally, in order to improve perspiration and eliminate the sticky feeling,
A method has been adopted in which hydrophilic and hygroscopic fibers are mixed with hydrophobic and non-hygroscopic fibers by weaving and knitting them in two layers in clothing fabrics (Japanese Patent Publication No. 63-56345, Japanese Patent Publication No. 56134263,
Special Publication No. 62-45340 / No. 59-21744
, Japanese Patent Publication No. 61-58581, Japanese Patent Publication No. 61-1984
9, Jitsuhei 139736 ・Jitsukei Sho 61-20248
4. Jitsuhei 1-16782/Jitsukei 60-169282
, Utility Publication Showa 63-29748, Utility Publication Showa 55-1350
68, Jitsukō 63-2468, Jitsukō 60-10227
9, Jitsugō 62-36878 ・Jitsukō 61-117
92, Utility Model No. 6229496, Utility Model No. 59-117
689, Jitsukō 62-29497, Jitsukō 59-137
990, Jitsugyo 62-29498 ・Jitsuki Sho 59-1
69384, Jitsugyo 62-29499 ・Jitsuki Sho 59
-169385, Jitsugyo 62-29500, Jitsugyo 59-169386, Jitsukisho 62-1273, Jitsukisho 5
8-168588, Sho 61-45mm80, Sho 59-193884, Sho 60-40612, Sho 59-195485, Sho 60-14776
Utility Model No. 58-12290, Utility Model No. 60-2220, Utility Model No. 58-92382). For mandrels and car vents for dust control, etc., hydrophilic and hygroscopic fibers should be mixed with the pile yarn.
), or a method of imparting hygroscopicity to the pile tip (
Utility Model Publication No. 61-7261 - Utility Model Application No. 57-133581) etc. are adopted. Particularly in the case of pile cloth used as fabric for automobile seats, when hydrophobic and non-hygroscopic fibers are used for the pile yarn, hydrophilic and hygroscopic tayo is used for the base structure (Japanese Patent Publication No. 2-298
1. Japanese Patent Application Laid-open No. 59-36745>, or 5 on the back side
Fix the moisture absorbent (Japanese Patent Publication No. 64-9035/Japanese Patent Publication No. 64/1989)
-7888), or apply and impregnate the ground tissue with a moisture absorbent so that it oozes from the back side to the base of the pile (Japanese Patent Publication No. 1-5
7190-JP-A-63-196780), or
Methods such as adding moisture to the pile (Utility Model Application Publication No. 62-26743) are adopted. [Problem that the invention seeks to solve] Self! Used for lJ car seats. It is easy to think of using a mixture of hydrophilic/hygroscopic fibers and hydrophobic/non-hygroscopic fibers in the pile in order to impart hygroscopicity to the pile fabric and eliminate the feeling of stiffness, but it is possible to use a mixture of hydrophilic/hygroscopic fibers and hydrophobic/non-hygroscopic fibers in the pile. Tokuko Sho 6
When these two types of fibers are simply mixed as in No. 3-56345, hydrophobic fibers with excellent abrasion resistance, light resistance, fastness, etc., such as nylon and polyester fibers, which are commonly used for the pile of pile fabrics for automobile seats, are used.・Compared to non-hygroscopic fibers, hydrophilic and hygroscopic fibers such as natural fibers and regenerated cellulose fibers have much inferior physical properties and strength, and their dyeability is also different, so it is not possible to simply mix these fibers together. It is difficult to obtain a pile fabric that is practical as an automobile interior material in terms of its clean and neat appearance as well as its durability. Furthermore, as shown in the above-mentioned Japanese Patent Publication No. 2-2981 and Japanese Patent Publication No. 64-9035, even if hydrophilic and hygroscopic fibers are used for the back surface structure of pile fabrics or a moisture absorbent is fixed, these hygroscopic fabrics cannot be used. The structure is blocked by a thick pile layer with a pile length of 2 to 4, and cannot impart hygroscopicity to the pile surface in contact with the skin. Furthermore, as shown in Japanese Patent Publication No. 1-57190, if the moisture absorbent is leached together with the puffing agent, it is essentially the same as shortening the pile length, so it is difficult to compress the elasticity. The pile fabric was not obtained.
As shown in -26743, adding moisture to the pile will only make it more sticky and stuffy, making it even worse. Moreover, Japanese Patent Application Laid-Open No. 527017 previously disclosed by the present inventor
In the method according to No. 0, the hydrophilic and hygroscopic fibers are made into long piles that appear on the pile surface, and the absorbed long piles are attached to the skin with 1iFi! In that case, even if the hydrophobic and non-hygroscopic fibers are made into long piles, the pile fabric used for carpets, mats, etc. usually has a pile weight of 1000g/ m or more, and the thickness of the pile yarn is 2000 denier or more,
The thickness of the fibers constituting the pile yarn is 5 to 30 deniers, the pile length is 7 to LOW, and the pile density is 6
It is about 4 pieces/square inch (Special Public Official Publication 1986-497,
Special Publication No. 6319617, Special Publication No. 63-12191, Special Publication No. 62-28211, Special Publication No. 61-10585, No. 60-38714, No. 5213410), On the other hand, automatic upper seat chairs

[The pile fabric (mocket) used for the fabric has a pile weight of 500 g/fd or less, the thickness of the pile is around 100 denier, which is less than 250 denier, and the thickness of the fibers that make up the pile yarn is 1~
It is 2 denier, the pile length is around 3 cranes with less than 4 cuts, and the pile density is about 2,400 pieces/square inch (Special Publication No. 64-9035, Special Publication No. 63-61439, Jitsugyo No. 2-4136). , it is the same pile fabric like this ζ
The product specifications such as pile length, pile weight, and pile density are very different from moquette, which is used for foot mats, carpets, and chair fabrics. If the specifications and standards of carpets are reversed and long piles and short piles are arranged alternately, it will not be possible to obtain a carpet with uniform pile lengths and a flat pile surface. [Purpose of the Invention] Therefore, the present invention has a structure in which the pile surface is flat and neatly aligned, satisfies physical properties such as abrasion resistance, light resistance, color fastness, etc. required for automobile interior materials, and also reduces moisture absorption. Shi=l-Tsuki violet meeting? The purpose of the present invention is to obtain a pa-il fabric suitable for chair fabrics without imparting any additives. [Structure of the Invention] In the pile fabric 20 according to the present invention, the pile 12 protruding from the base fabric 11 is composed of fluff 13 of hydrophilic/hygroscopic fiber and fluff 14 of hydrophobic/non-hygroscopic fiber, The length L' of the fluff 13 of the hydrophilic/non-hygroscopic fiber is shorter than the length of the fluff 14 of the hydrophobic/non-hygroscopic fiber, and the pile layer 15 has a short-hair side 13 made of the hydrophilic/non-hygroscopic fiber and the short hair side 13 of the hydrophobic/non-hygroscopic fiber. an inner layer 16 in which long fluff 14 is mixed;
The surface layer 1 is composed of the tip portion 19 of the long fluff 14 of hydrophobic and non-hygroscopic fibers that protrude from the top and form the pile surface 18.
It is characterized in that it is formed by being stratified below by 7 and 7. In the present invention, hydrophobic/non-hygroscopic fibers refer to relative humidity 9
5% R1 (refers to fibers with a moisture content of less than 10%), and usually synthetic fibers such as polyester fibers, acrylic fibers, nylon fibers, vinylidene fibers, polypropylene fibers, polyvinyl chloride fibers, and polyfural fibers are used. In particular, these IJ5 fibers do not have hygroscopic properties per se, but they are preferably used as ultrafine fibers with a fineness of 0.5 denier or less so that the pile or yarn as a fiber aggregate is imbued with moisture. .Hydrophilic and hygroscopic fibers refer to relative humidity of 95%R1 (to δ
5 types of fibers with a moisture content of 10% or more, linen,
Vegetable fibers such as ramie, hemp, jute, Manila hemp, and cotton, regenerated cellulose such as rayon, cupro, acetate, etc. In addition to fibers that are hygroscopic in their own right, such as fibers with hydroxyl groups such as 4-fiber and vinylon, animal fibers such as wool and silk, and alginate fibers, there are also fibers that are not inherently hygroscopic, such as sodium polyacrylate. Graft polymerization and N-N
Synthetic fibers imparted with hygroscopicity by ultraviolet polymerization such as '-methylenebis(meth)acrylamide or hydrolysis treatment with acid or alkali are also used. In addition, hydrophilic/hygroscopic fibers can be used as hydrophobic/non-hygroscopic fibers by adding a water repellent, and the above-mentioned polyester fibers and other hydrophobic/non-hygroscopic fibers can be used by adding a water repellent. It is also possible to further increase the hydrophobicity and non-hygroscopicity of wool fibers and cellulose fibers, which are hydrophilic and hygroscopic fibers, by using sodium hypochlorite or caustic soda. It can also be used at a higher level. Pile fabric can also be finished by applying an adhesive (backing agent) to the back side and backing it. Starch, carboxymethylated starch, carboxyethylated starch, hydroxyethylated starch, guar gum, tamarind gum, polyvinylpyrrolidone, polystyrene sulfonic acid,
Hygroscopic compounds such as polyacrylic acid amide and sodium polyacrylamide propane sulfonate are used to modify hydrophobic and non-hygroscopic synthetic fibers into hydrophilic and hygroscopic fibers, or to add hygroscopic properties to the backing coating using puffing agents. used to grant. Backing agents include hygroscopic fillers such as glue, silica gel, zeolite, and pulp powder, antistatic agents such as carbon black, metal powder, and surfactants, as well as deodorants, antibacterial agents, pest repellents, and insect repellents. Flame agent, ultraviolet absorber, antioxidant,
Known compounds such as light stabilizers can be appropriately blended. Pile 12 is Kutsuting (Special Public Interest 1-54465
), weaving (Japanese Patent Publication No. 2-26954), warp knitting (Special Publication No. 60-'; 0902), wire fiber (Japanese Patent Publication No. 2-4136)
, raised hair (Japanese Patent Publication No. 62-21892), electrostatic flocking (Japanese Patent Publication No. 1-12659), etc. In order to mix the long fluff 14 made of hydrophobic/non-hygroscopic fibers and the short fluff 13 made of hydrophilic/hygroscopic fiber in one pile 12, first, these two types of fibers (b3, 14) are blended, By using a combined or mixed spun system, combined twisted yarn, fill bound spun yarn, multifilament yarn, etc. as the pile yarn, a) hydrophilic / hygroscopic fiber 13 and hydrophobic / non-hygroscopic fiber 14
After forming one cuffed fiber 12, the hydrophilic/hygroscopic fiber 13 is made into i'(M water -$ Special Publication No. 6228211 to make fluff 13 shorter than hygroscopic fiber 14
, JP 59-53929, JP 57-61727,
A method using the crimp difference disclosed in Japanese Utility Model Publication No. 47-20302, Japanese Utility Model Application Publication No. 55-15204, etc. is adopted. (2) Another method is to form a cut pile 12 in which the length of the fluff of these two types of fibers (b3 and 14) becomes stiff, and then attach the hydrophilic-hygroscopic fiber 13 to the tip of the pile. '8 Solution: Remove or shrink the tip of the fuzz 13 of hydrophilic/hygroscopic fibers by applying a corrosive agent such as an acid or alkali that causes deterioration, decomposition, or shrinkage.
9438, Special Publication No. 57-21594, Real Publication No. 45-11
571, etc., and in this method, vegetable fibers, regenerated cellulose fibers, animal fibers, alginate fibers are used as the hydrophilic/hygroscopic fibers 13,
As hydrophobic and non-hygroscopic fibers, it is recommended to use ordinary synthetic fibers, especially polyester fibers or nylon. (3) In the other methods and 1-, the hydrophilic/hygroscopic fibers 13 are made of hydrophobic/non-hygroscopic fibers that shrink more easily in heat, water, organic solvents, etc. than the iIl fibers 14; After forming a pile with the same length of fluff of seed fibers (b3 and 14), the shrinkage difference between them is expressed to transform the hydrophilic/hygroscopic fiber 13 into a hydrophobic/non-hygroscopic fiber*14. To make the fluff shorter than 13
45457, JP-A No. 60-209048, etc., there is a method that utilizes the shrinkage difference, and in this method, the hydrophilic/hygroscopic fiber 13 has a water shrinkage rate of 30 to 35%.
It is preferable to use vinylonated polyvinyl alcohol fibers, α-olefin-modified polyvinyl alcohol fibers with a degree of saponification of the vinyl acetate component of 85% or more, and specifically, vinylon manufactured by Unitika #S with a degree of saponification of 99.9%. . (4) When forming the pile 12 by electrostatic flocking, make the front (pile fluff) made of the hydrophilic/hygroscopic fibers 13 shorter than the flock made of the hydrophobic/non-hygroscopic fibers 14, and mix them to form the base material. What is necessary is to make it fly onto the binder-coated surface of No. 11. The short fluff 13 is 0.5 to 2 u- more than the long hair side 14 and is generally 1
It is about 5 mm shorter, and its length Ll is 5 of the length L of the long hair side 14.
0 to 80% (L, '-0.5mm, ~0.8L), and when the color is different from the long hair side 14, it is preferably made of a darker color than the long hair side 14. The short fluff 1 is used to darken the color of the pile surface 18 to make stains on the pile surface less noticeable, and to prevent deterioration caused by sunlight.
It is desirable to make 3 a thick color. Preferred embodiments of the present invention are specifically shown below. (The b1 hydrophilic/hygroscopic fiber 13 is made of vinylon hemp or silk fiber with a moisture content of 10% or more at a relative humidity of 95%.
The hydrophobic/non-hygroscopic fiber 14 is a synthetic fiber such as nylon or polyester fiber (with a moisture content of 10% or more at a relative humidity of 95%). (2) Hydrophobic/W hygroscopic nylon, polyester fiber, etc. The synthetic tIIA fibers used are ultra-fine fibers with a thickness of 5 deniers or less. (3) Specific gravity of the pile layer 15 composed of H-ILE fibers, which are a combination of the fluffs 13 and 14 of the inner layer 16 and the surface layer 17. 0
゜03 < g/(ffl) or more, preferably! :0
．． 05 (g/-) or more, and the inner layer 16 contains hydrophilic/moisture-absorbing bamboo fibers 13 and hydrophobic/non-hygroscopic fibers 14. The weight ratio of L: is 1 to 9 parts by weight of hydrophobic/non-hygroscopic RL14 fiber to 1 part by weight of hydrophilic/hygroscopic fiber, and more preferably hydrophobic/hygroscopic RL14 fiber.
The specific gravity of the surface layer 17 composed of non-hygroscopic fibers 14 is set to 0.
05 (g/cd) or more. In addition, the "specific gravity" mentioned here means the value obtained by dividing the weight of the inner layer, surface layer or pile layer by the volume of each layer. (4) Length of the fluff 14 of the hydrophobic/non-hygroscopic fiber 5 L
mm or less, and the length Ll of the fluff 13 of the hydrophilic/hygroscopic fiber
is the length of the fluff 14 of the hydrophobic/non-hygroscopic fiber, −[, 4/5 or less (L'<0.8L) and is shortened by 1 ws or more (■,'<L-1 mm). By doing this, the fluff 13 of the hydrophilic and hygroscopic fibers contained in the inner layer 16 is covered in one minute, and is not directly visible from the surface layer 17, giving the pile layer 15 hygroscopicity.
It is possible to obtain a pile fabric with 7 types of tokki violet. When the pile 12 is formed by tufting, weaving, knitting, or raising, the pile yarns include hydrophilic-hygroscopic fibers 13 and hydrophobic/non-hygroscopic fibers 14, regardless of whether they are aligned or twisted.
71. It is recommended to use the multi-filament system discussed in i. (Effects of the invention) (]) The pile surface 18 is made of hydrophobic fibers such as nylon or polyester fibers, which have excellent abrasion resistance, light resistance, color fastness, etc.
It is formed of non-hygroscopic fibers 14, but the pearl surface 1
From the tip of the pile fluff forming the pile layer 8 to the position slightly sunken into the pile layer 15 to the back surface 11, N is applied.
Pail 12 is a cut pile with a protruding free end that is easy to buckle, mixed with short fuzz 13 of hydrophilic and hygroscopic fibers that easily bind with numbering, anti-mildew, antibacterial, insect repellent processing agents, etc. and one of them forming a pile13.14
Because the fibers are aligned in the length direction of the base fabric or base fabric 11, when sitting or leaning on the pile surface] 8, the long hair side 1
4 buckles and the skin comes very close to the short fluff 13, and the sweat generated on the skin is absorbed by the short fluff 13 and released to the back surface 11 via the short fluff 13. However, even though they are close to each other, the skin is not in direct contact with the short fluff 13 that has absorbed moisture, but is in direct contact with the hydrophobic non-hygroscopic fibers 14 that make up the pile surface 18. The fibers 13 that have absorbed moisture will not come in contact with the fibers 13 and become sluggish. In this case, the short fluff 13 serves to guide sweat to the back side 11, so the base fabric 11 is also made of hydrophilic and hygroscopic fibers. Alternatively, if the backing agent 21 containing the hygroscopic compound is applied as a backing, or the pile-type backing 22 exposed on the back side is brushed to give a fluff +7, short fluff l, (2) The short fluff 13 is covered by the tip portion 19 of the long hair side 14 and is interposed inside the pile layer, so that it does not directly appear on the pile surface 18 and is difficult to see. Therefore, even if the fibers are vegetable fibers that have physical properties such as abrasion resistance and light resistance that are inferior to the nylon or polyester fibers that make up the long hair side 14, the durability of the pile fabric 20 can be improved by mixing them with pile fabric. On the contrary, when the short fluff 13 is made of hemp fiber such as ramie or linen, which has high thermal conductivity, it imparts a refreshing feeling to the pile fabric 20. Many of the fibers exemplified as the hydrophilic/hygroscopic fibers 13 are easier to process, such as flame retardant, deodorizing, pest repellent, etc., than the hydrophobic/non-hygroscopic fibers 14 such as nylon and polyester M1. The quality of the pile fabric 20 can be improved by processing it. (3) In particular, polyester fi1m, which is commonly used for the pile of pile fabric for automobile seat and chair fabrics, is difficult to dye in deep colors, and low refractive index resins such as fluororesin are used. However, it is even required to darken the color by adding
590, Japanese Patent Publication No. 58-5 mm (557)), compared to that, hydrophilic and hygroscopic fibers (11) such as vegetable fibers (13) are easily dyed in deep colors, and short fluff (13) is stored inside the pile layer (16) where it cannot be directly seen. For chemical or synthetic fibers such as regenerated cellulose fibers and vinylon, the material may be dyed black and left in the spinning step 1. In this way, if the short fluffs 13 are colored in a dark or single color, the pile surface 18 will be formed. (7) The color of the fluff 14 becomes deeper and darker, and the black dye that colors each short fluff 13 is a chromatic dye that is necessary for coloring the long fluff 14 that colors the burl surface 18. ′f1 compared to
．． 1, it is possible to dye pile fabrics and T-values in deep colors, and since attached dust is less noticeable under black color, the pile surface 18 is less likely to be contaminated;
Those colored black tend to absorb heat rays, but on the other hand, they absorb heat rays easily.
The light resistance of the pile 12 is improved because the oxidation effect is weakened. (b) Hydrophilic/hygroscopic fiber 13 and hydrophobic/non-hygroscopic fiber 14
The long fluff 1 in the pile 12 of the 1 (il) does not form separate alternating piles.
4 and short fluff 13 are mixed, and thereby the pale layer 15 has an inner layer 16 formed by the 1.5 fluff 14 and short fluff 13, and a pale layer 18 that protrudes from the surface of the inner layer 16. It has a two-layer structure with a surface layer 17 forming
When the thickness of the fibers 13 and 14 that make up the pile system is less than 5 delta, the strength of the carpet is less than 5. Because it is shorter than the pile, these two types of fibers 13 and 14
are uniformly mixed in one pile 12, and the number of pile fibers in the surface layer 17 formed by the long fluffs 14 protruding from the inner layer 16 is smaller than the number in the inner layer 16. A pile surface 18 that is soft to the touch, firm and smooth is formed. Then, as the hydrophilic/hygroscopic fiber 13, contact-burnable fibers such as cotton or hemp fibers and shrinkable fibers such as Beeron are mixed, or fibers that contract with water or heat with different shrinkage rates are mixed. By making the fibers A and B different colors, the pile layer 15 will have a multilayer structure corresponding to the length of the short fluff 13A and 13B, and the color will change depending on the depth of the pile layer 15. A pile fabric 20 that slightly appears on the pile surface 18 and has a deeper feel is obtained. (5) When vinylon with a water shrinkage rate of 10% or more is used as the hydrophilic/hygroscopic fiber 13, 1. A pile fabric 20 is made in exactly the same way as when making a regular pile fabric, and in the backing finishing process, which is performed by applying backing agent 2], the moisture contained in the huffing agent 21 is applied, or by using a humidifying roll or spray. By slightly humidifying the pile surface 18, the vinylon fluff 13 can be contracted into short fluff, and when the pile fabric 20 is dyed (<T& dyeing) without using dyed fibers in the pile 12, The applied dye solution causes the vinylon fluff 13 to shrink and become short fluff, so the pile fabric of the present invention can be obtained without any particular change in the conventional production process. (6) The pile surface 18 is composed of the tip portion 19 of the long fluff 14 protruding from the inner layer 16, but metal fibers or charcoal fibers commonly used as conductive fibers are not contacted by acids or alkalis. Since it does not shrink due to water-heat, if it is mixed with pile yarn, those conductive fibers 23 become long fluff 14, protrude from the inner layer 16 and become easy to touch the skin, so the conductive M4 fibers 23 This will increase the effectiveness of the system. In addition, when the conductive fibers 23 are mixed with the pile yarn in this way, the conductive fibers are also mixed with the base fabric 11 of the ground structure, and the banking agent 21 is mixed with a conductive material such as carbon black, and more preferably, Knitted fabric or non-woven fabric 24 mixed with conductive fibers, especially with a basis weight of 40 g/m or less, preferably 10 to 20 g
It is best to back and adhere an extremely thin material of /m. As described above, the present invention satisfies the physical properties and quality characteristics required for automobile interior materials, does not give a sticky and stuffy feeling,
In particular, a pile fabric suitable for pile fabrics such as upholstery for automobile seats can be obtained. The present invention can also be carried out by using several different colored threads for the pile yarn and by drawing a desired pattern on the pile surface using a patterning device such as a jacquard. Even if it is used for wall fabrics, curtain fabrics, carpets, etc., such uses do not limit the technical scope of the present invention in any way.

[Brief explanation of drawings]

FIG. 1 is an enlarged sectional view of a pile fabric according to the present invention. 11...Base fabric (ground texture/base fabric), 12...Pile, 13--short fluff (hydrophilic/hygroscopic fiber), 14--long fluff (hydrophobic/non-hygroscopic fiber), 15 −・・Pile bottom,
16.-inner layer, 17.. surface layer, 18..
- Pile surface, 19...Tip part, 20...Pile fabric (pile fabric), 21...Puffing material, 22...
... pack stitch, 23... conductive fiber, 24.
...Nonwoven fabric.

Claims (1)

[Claims] 1. (a) The pile 12 protruding from the base material 11 is composed of fluff 13 of hydrophilic/hygroscopic fibers and fluff 14 of hydrophobic/non-hygroscopic fibers; (b) The length L' of the fluff 13 of the hydrophilic/hygroscopic fiber is hydrophobic/hygroscopic.
shorter than the length L of the fluff 14 of the non-hygroscopic fiber; (c) the pile layer 15 has an interior in which short fluff 13 made of hydrophilic/hygroscopic fibers and long fluff 14 made of hydrophobic/non-hygroscopic fiber coexist; It is formed by being vertically stratified by a layer 16 and a surface layer 17 consisting of the tip portion 19 of the long fluff 14 of hydrophobic and non-hygroscopic fibers that protrudes above the inner layer 16 and forms the pile surface 18. A pile fabric for automobile seats, etc., characterized by the following: 2. (a) The pile 12 protruding from the base material 11 has a hydrophilic structure with a moisture content of 10% or more at a relative humidity of 95%.
The fluff of hygroscopic fibers is 13 and the moisture content at 95% humidity is 1.
(b) the length L' of the hydrophilic/hygroscopic fiber fluff 13 is equal to the length of the hydrophobic/non-hygroscopic fiber fluff 14; (c) The pile layer 15 includes an inner layer 16 in which short fluffs 13 made of hydrophilic/hygroscopic fibers and long fluffs 14 made of hydrophobic/non-hygroscopic fibers coexist, and the top layer of the inner layer 16. and a surface layer 17 composed of a tip portion 19 of a long fluff 14 of hydrophobic/non-hygroscopic fibers protruding from the surface to form a pile surface 18. Pile fabrics such as chair upholstery. 3. (a) The pile 12 protruding from the base material 11 is made of fluff 13 of hydrophilic/hygroscopic fiber such as vinylon, hemp, silk, etc. whose moisture content is 10% or more at a relative humidity of 95%. (b) The length L' of the hydrophilic/hygroscopic fiber fluff 13 is composed of hydrophobic/non-hygroscopic fiber fluff 14 such as nylon or polyester fiber with a moisture content of 10% or more; Hydrophobic/
(c) The pile layer 15 is an inner layer in which short fluffs 13 made of hydrophilic/hygroscopic fibers and long fluffs 14 made of hydrophobic/non-hygroscopic fibers coexist. 16, and a surface layer 17 consisting of the tip portion 19 of the long fluff 14 of hydrophobic/non-hygroscopic fibers protruding above the inner layer 16 to form the pile surface 18. (d) The specific gravity of the pile layer 15 made of pile fibers, which is a combination of the fluffs 13 and 14 of the inner layer 16 and the surface layer 17, is 0.
03 (g/cm^3) or more. 4. (a) The pile 12 protruding from the base material 11 is made of fluff 13 of hydrophilic/hygroscopic fiber such as vinylon, hemp, silk, etc. whose moisture content is 10% or more at a relative humidity of 95% and a relative humidity of 95%. (b) It is a cut pile composed of fluff 14 of hydrophobic/non-hygroscopic fibers such as nylon or polyester fibers with a moisture content of 10% or more and a thickness of 5 deniers or less; (b) hydrophobic/non-hygroscopic fibers; The length L of the fluff 14 of the hygroscopic fiber is 5 mm.
or less, and the length L' of the fluff 13 of the hydrophilic/hygroscopic fiber is 4/5 or less (L'<0.8L) of the length L of the fluff 14 of the hydrophobic/non-hygroscopic fiber, and is 1 mm or more. Short (L'
<L-1 mm), (c) The pile layer 15 is formed on an inner layer 16 in which short fluffs 13 made of hydrophilic/hygroscopic fibers and long fluffs 14 made of hydrophobic/non-hygroscopic fibers coexist, and on the inner layer 16. and a surface layer 17 composed of the tip portion 19 of the long fluff 14 of the hydrophobic/non-hygroscopic fibers that protrude to form the pile surface 18. (d) The inside The specific gravity of the pile layer 15 made of pile fibers, which is a combination of the fluffs 13 and 14 of the layer 16 and the surface layer 17, is 0.
05 (g/cm^3) or more. 5. (a) The pile 12 protruding from the base material 11 is made of fluff 13 of hydrophilic/hygroscopic fiber such as vinylon, hemp, silk, etc. whose moisture content is 10% or more at a relative humidity of 95% and a relative humidity of 95%. (b) It is a cut pile composed of fluff 14 of hydrophobic/non-hygroscopic fibers such as nylon or polyester fibers with a moisture content of 10% or more and a thickness of 5 deniers or less; (b) hydrophobic/non-hygroscopic fibers; The length L of the fluff 14 of the hygroscopic fiber is 5 mm.
or less, and the length L' of the fluff 13 of the hydrophilic/hygroscopic fiber is 4/5 or less (L'<0.8L) of the length L of the fluff 14 of the hydrophobic/non-hygroscopic fiber, and is 1 mm or more. Short (L'
<L-1 mm), (c) The pile layer 15 is formed on an inner layer 16 in which short fluffs 13 made of hydrophilic/hygroscopic fibers and long fluffs 14 made of hydrophobic/non-hygroscopic fibers coexist, and on the inner layer 16. and a surface layer 17 composed of the tip portion 19 of the long fluff 14 of the hydrophobic/non-hygroscopic fibers that protrude to form the pile surface 18. (d) The inside The weight ratio of the hydrophilic/hygroscopic fibers 13 and the hydrophobic/non-hygroscopic fibers 14 contained in the layer 16 is 1 to 9 parts by weight of the hydrophobic/non-hygroscopic fibers to 1 part by weight of the hydrophilic/hygroscopic fibers; (e) The specific gravity of the pile layer 15 made of pile fibers, which is a combination of the fluffs 13 and 14 of the inner layer 16 and the surface layer 17, is 0.
05 (g/cm^3) or more. 6. (a) The pile 12 protruding from the base material 11 is made of fluff 13 of hydrophilic/hygroscopic fiber such as vinylon, hemp, silk, etc. whose moisture content is 10% or more at a relative humidity of 95%, and a relative humidity of 95%. (b) It is a cut pile composed of fluff 14 of hydrophobic/non-hygroscopic fibers such as nylon or polyester fibers with a moisture content of 10% or more and a thickness of 5 deniers or less; (b) hydrophobic/non-hygroscopic fibers; The length L of the fluff 14 of the hygroscopic fiber is 5 mm.
or less, and the length L' of the fluff 13 of the hydrophilic/hygroscopic fiber is 4/5 or less (L'<0.8L) of the length L of the fluff 14 of the hydrophobic/non-hygroscopic fiber, and is 1 mm or more. Short (L'
<L-1 mm), (c) The pile layer 15 is formed on an inner layer 16 in which short fluffs 13 made of hydrophilic/hygroscopic fibers and long fluffs 14 made of hydrophobic/non-hygroscopic fibers coexist, and on the inner layer 16. and a surface layer 17 composed of the tip portion 19 of the long fluff 14 of the hydrophobic/non-hygroscopic fibers that protrude to form the pile surface 18. (d) The inside The weight ratio of the hydrophilic/hygroscopic fibers 13 and the hydrophobic/non-hygroscopic fibers 14 contained in the layer 16 is 1 to 9 parts by weight of the hydrophobic/non-hygroscopic fibers to 1 part by weight of the hydrophilic/hygroscopic fibers; (e) Surface layer 17 composed of hydrophobic and non-hygroscopic fibers 14
A pile fabric such as a chair upholstery for an automobile seat, which has a specific gravity of 0.05 (g/cm^3) or more.