JP7540662B2 - Cross pile and other pile fabrics - Google Patents

Description

The present invention relates to a pile fabric having a base fabric woven with warp and weft yarns and pile yarns woven into the base fabric.

2. Description of the Related Art Conventionally, a cleaning brush is known that includes a base portion, a handle portion provided on one surface of the base portion, and a pile layer provided on the other surface of the base portion (see Patent Document 1).
This cleaning brush is characterized in that the end face on the free end side of the pile layer has a long side edge that is approximately linear and extends over the entire length of the pile layer, the long side edge has acute angles near both ends, and the acute angle region sandwiched between a first imaginary line passing through both ends of the long side edge and extending at a right angle to the long side edge, and a second imaginary line passing through both ends of the long side edge and extending at an inclination of 4 to 40 degrees with respect to the first imaginary line, is a free space free of the base, handle portion and pile layer, the base being flat and a brush portion having the pile layer is provided on the other surface of the base, and the pile layer is formed by planting a large number of single fibers one by one in an upright state at a planting density of 1,000 to 50,000 fibers per ^cm2 and a thickness of 0.8 to 7.8 mm.

JP 2001-353103 A

However, as mentioned above, the cleaning brush described in Patent Document 1 has pile layers in which each fiber is planted in an upright position, so the pile tends to collapse when brushed in any direction (in other words, the pile is weak), and there is a risk that it will be difficult to remove dust and debris when cleaning.

In view of these points, the present invention aims to provide a pile fabric that can achieve "improved multi-directional brushing properties" by tilting backward or forward the front end pile piece portion that is erected by passing under the front end weft below or above the first warp thread, and the rear end pile piece portion that is erected by passing under the rear end weft above or below the first warp thread.

The pile fabric 1 according to the present invention is a pile fabric having a base fabric 4 woven with warp threads 2 and weft threads 3, and a plurality of pile threads 5 woven into the base fabric 4, the warp threads 2 having a first warp thread 2A and a second warp thread 2B, each of the plurality of pile threads 5 being engaged with the base fabric 4 by a front end side weft thread 3a, one or more intermediate weft threads 3m, and one rear end side weft thread 3b, which are arranged in front and rear in the longitudinal direction of the warp threads 2, the plurality of pile threads 5 passing under the front end side weft thread 3a woven under the first warp thread 2A, the front end side pile piece portion 5A standing up, and woven above the first warp thread 2A. and a pile yarn passing under a front end side weft 3a woven above the first warp yarn 2A to stand up a front end side pile piece 5A and passing under a rear end side weft 3b woven below the first warp yarn 2A to stand up a rear end side pile piece 5B. Each of the plurality of pile yarns 5 includes a middle portion 5M between the front end side pile piece 5A and the rear end side pile piece 5B passing above or below the intermediate weft 3m, and the front end side pile piece 5A is woven adjacent to the front end side weft 3a above the first warp yarn 2A. The rear end pile piece 5B passes between the rear end adjacent weft 3b' woven adjacent to the rear end weft 3b and the rear end weft 3b, and stands up. The front end pile piece 5A in which the front end weft 3a is woven below the first warp yarn 2A is inclined toward the rear, that is, in a direction away from the front end adjacent weft 3a', with the front end weft 3a as the center, or the front end pile piece 5A in which the front end weft 3a is woven above the first warp yarn 2A is inclined toward the rear, that is, in a direction away from the front end adjacent weft 3a', with the front end weft 3a as the center. The first feature is that the pile piece 5A is inclined toward the front, that is, toward the front adjacent weft 3a', with the front weft 3a as the center, and the pile piece 5B with the rear weft 3b woven above the first warp 2A is inclined toward the rear, that is, toward the rear adjacent weft 3b', with the rear weft 3b as the center, or the pile piece 5B with the rear weft 3b woven below the first warp 2A is inclined toward the front, that is, away from the rear adjacent weft 3b', with the rear weft 3b as the center.

The second feature of the pile fabric 1 according to the present invention is that, in addition to the first feature, the shrinkage ratio of the first warp thread 2A is smaller than the shrinkage ratio of the second warp thread 2B.

The third feature of the pile fabric 1 according to the present invention is that, in addition to the first or second feature, at least some of the pile yarns 5 intersect with adjacent pile yarns 5 when viewed in the longitudinal direction of the weft yarn 3.

In addition, the pile fabric 1 is a pile fabric having a base fabric 4 woven with warp threads 2 and weft threads 3, and a plurality of pile threads 5 woven into the base fabric 4, and at least a portion of the plurality of pile threads 5 may be such that adjacent pile threads 5 cross each other when viewed in the longitudinal direction of the weft threads 3.

Alternatively, in the pile fabric 1, the adjacent pile yarns 5 may be inclined in opposite directions when viewed in the longitudinal direction of the weft yarns 3.

Due to these characteristics, the front end pile piece 5A which is erected by passing under the front end weft 3a on the lower or upper side of the first warp thread 2A, and the rear end pile piece 5B which is erected by passing under the rear end weft 3b on the upper or lower side of the first warp thread 2A are inclined backward or forward. Therefore, unlike Patent Document 1, when the pile fabric 1 is brushed backward, the pile pieces inclined forward are less likely to fall over than piles that are simply upright (in other words, the pile has a stronger stiffness). It can be said that when the pile fabric 1 is brushed forward, the pile pieces inclined backward are less likely to tip over than pile fabric that is simply upright, and furthermore, even when the pile fabric 1 is brushed in the left-right direction substantially perpendicular to the rear or front of the pile fabric 1, adjacent pile pieces inclined backward or forward support each other, so that the pile fabric 1 is less likely to tip over than pile fabric that is simply upright, even when brushed in many different directions, and therefore it is easier to remove dust and debris during cleaning ("improved multi-directional brushability"). Note that, since the pile fabric 1 has improved multi-directional brushability, it may also be used as a rotating brush (such as a brush that rotates the pile yarn 5 side of the pile fabric 1 while applying it to the object to be cleaned).
In addition, when the pile fabric 1 is used for cleaning, once dust or debris has become caught between the multiple pile threads 5, the dust or debris remains caught between the front end pile piece 5A and the rear end pile piece 5B, which are inclined rearward or forward. Therefore, even when the pile fabric 1 is used for cleaning, the dust or debris is less likely to fall out between the pile threads 5, and it can be said that scattering of dust and debris is suppressed ("suppression of scattering of dust and debris").

In addition, by making the shrinkage rate of the first warp thread 2A smaller than that of the second warp thread 2B, the weft thread 3 can be easily woven above and below the first warp thread 2A, and the front end pile piece portion 5A and the rear end pile piece portion 5B can be tilted backward and forward more stably.

Furthermore, by crossing at least a portion of the multiple pile yarns 5 between adjacent pile yarns 5 when viewed in the longitudinal direction of the weft yarn 3 (i.e., when viewed from the side), dust and debris are more firmly held between the front end pile pieces 5A and the rear end pile pieces 5B, and even when the pile fabric 1 is used to clean, dust and debris are more unlikely to fall out between the pile yarns 5, thereby achieving a further "improvement in multi-directional brushing ability."
Here, it can be said that the pile fabric 1 may have any weave structure as long as adjacent pile yarns 5 cross each other in a side view. Also, the pile fabric 1 can be said to be a "pile fabric such as a cross pile" as long as adjacent pile yarns 5 cross each other in a side view.
Furthermore, it can be said that by inclining adjacent pile yarns 5 in opposite directions when viewed in the longitudinal direction of the weft yarn 3 (when viewed from the side), the "multi-directional brushing ability can be further improved."

The pile fabric of the present invention can achieve "improved multi-directional brushing properties" by tilting the front pile piece portion erected by passing under the front weft below or above the first warp thread, or the rear pile piece portion erected by passing under the rear weft above or below the first warp thread, backward or forward.

1 is a photograph showing a perspective view of the surface of a pile fabric according to the present invention; 1 is a photograph showing an example of a pile fabric viewed in the longitudinal direction of warp yarns. This is a diagram of the structure of a pile fabric (one intermediate weft). Note that black in Fig. 3 means that the warp or pile yarn passes above (or above) the weft in a pile surface view (plan view). The reference numerals attached to the weft in Fig. 3 indicate the reference numerals of the weft in the cross-sectional view taken along the line X-X. 4 is a cross-sectional view taken along the line XX in the pile fabric illustrated in the structure diagram of FIG. 3. 4 is a cross-sectional view taken along the line YY in the pile fabric illustrated in the structure diagram of FIG. 3. 4 is a cross-sectional view taken along the line Z-Z of the pile fabric illustrated in the structure diagram of FIG. 3. 4 is a cross-sectional view taken along the line V-V of the pile fabric illustrated in the structure diagram of FIG. 3. 8 is a perspective view of the pile fabric exemplified in the structure diagram of Fig. 3. The reference numerals given to the wefts in Fig. 8 indicate the reference numerals of the wefts in the cross-sectional view taken along the line X-X in Fig. 3.

Hereinafter, an embodiment of the present invention will be described with reference to the drawings.
<Overall configuration of pile fabric 1>
1 to 8 show an example of a pile fabric 1 according to an embodiment of the present invention.
The pile fabric 1 is a fabric having a base fabric 4 woven with warp yarns 2 and weft yarns 3 (described later), and a plurality of pile yarns 5 woven into this base fabric 4.

In particular, as shown in Figures 4 to 7, the pile fabric 1 may be first woven into two pile fabrics, each of which is woven in a double layer above and below, and the pile yarn 5 connecting them may then be center-cut along a line approximately in the center of the upper and lower pile fabrics 1 (i.e., a center-cut line C) to divide the fabric into two pile fabrics 1.
The thickness of the pile fabric 1 is the sum of the thickness of the base fabric 4 and the vertical length of the pile yarns 5 (pile length), and is not particularly limited, but may be, for example, 0.5 mm or more and 5.0 mm or less, preferably 0.7 mm or more and 4.5 mm or less, and more preferably 1.0 mm or more and 4.0 mm or less (2.0 mm or 2.2 mm).

<Warp thread 2>
As shown in Figures 1 to 8, the warp threads 2 are arranged along the weaving direction (one direction) of the woven base fabric 4 or along the longitudinal direction 2L of the warp threads 2 (both directions, also called the warp direction) (in other words, they are arranged side by side in the weaving width direction).
The warp yarns 2 may be of any construction, such as monofilament or multifilament, and the total fineness of the warp yarns 2 is not particularly limited, but may be, for example, 20 d (denier) or more and 1500 d or less, preferably 50 d or more and 1000 d or less, and more preferably 100 d or more and 600 d or less. The single fiber fineness of the warp yarns 2 is also not particularly limited, but may be, for example, 0.1 d (denier) or more and 1500 d or less, preferably 0.5 d or more and 1000 d or less, and more preferably 1 d or more and 600 d or less.

The material of the warp yarns 2 is likewise not particularly limited, and may be, for example, cotton fiber, polyester fiber such as PET, rayon fiber, nylon fiber, acetate fiber, or twisted or blended yarns thereof.
The number of warp threads 2 per inch is not particularly limited, and may be, for example, 10 to 30 (21).

<Each warp thread 2A, 2B>
As shown in Figures 1 to 8, the warp threads 2 may have any structure as long as they are woven with the weft threads 3 to form the base fabric 4. For example, the warp threads 2 may have first warp threads 2A and second warp threads 2B, and these two types of warp threads 2A, 2B may be arranged in pairs side by side in the weaving width direction.
The first warp thread 2A and the second warp thread 2B may have substantially the same fineness (total fineness) or may be different. The first warp thread 2A and the second warp thread 2B may be made of the same material or may be different.

<Shrinkage ratio S of each warp thread 2A, 2B>
The shrinkage ratio S of the first warp thread 2A and the second warp thread 2B described above is not particularly limited, but for example, the shrinkage ratio SA of the first warp thread 2A may be smaller than the shrinkage ratio SB of the second warp thread 2B.
Here, the "shrinkage ratio S of the warp yarns 2" in the present invention means a fixed length L1 of the pile fabric 1 approximately along the longitudinal direction 2L of the warp yarns 2 in the pile fabric 1 after it has been woven, a length L2 of the warp yarns 2 (the first warp yarns 2A and the second warp yarns 2B in the portion of the pile fabric 1 where the length L1 is measured) which is woven into the pile fabric 1 and corresponds to the fixed length L1 of the pile fabric 1, and a difference ΔL (=L2-L1) between the length L2 of the warp yarns 2 itself and the fixed length L1 of the pile fabric 1 is calculated, and the ratio S (=100×ΔL/L1) of this difference ΔL to the fixed length L1 of the pile fabric 1.
Furthermore, when the shrinkage ratio SA of the first warp thread 2A is less than the shrinkage ratio SB of the second warp thread 2B (SA<SB), it can be said that the length (overhang) of the second warp thread 2B required to weave a certain length L1 of the pile fabric 1 is greater than the length (overhang) of the first warp thread 2A, and it can be said that this shows a state in which the second warp thread 2B bends more than the first warp thread 2A within the certain length L1 of the pile fabric 1, while the first warp thread 2A bends less than the second warp thread 2B, and is woven in an approximately straight line.

When the shrinkage ratio SA of the first warp thread 2A is smaller than the shrinkage ratio SB of the second warp thread 2B, the pile fabric 1 can be said to have a two-layer structure in which the base fabric 4 has wefts woven separately above and below the first warp thread 2A. In other words, the first warp thread 2A, which has a small shrinkage ratio S, is in a tensed state in the base fabric 4, while the second warp thread 2B, which has a large shrinkage ratio S, is in a relaxed state in the base fabric 4, so that the wefts sequentially spun into the shed formed by the first warp thread 2A and the second warp thread 2B are woven separately above and below the first warp thread 2A, which is in a tensed state, and the base fabric 4 can be said to have a two-layer structure in which the wefts are woven separately above and below the first warp thread 2A.
In the pile fabric 1, the wefts woven above and below the first warp thread 2A may be fastened to the first warp thread 2A by the second warp thread 2B. In the base fabric 4 having the above-mentioned two-layer structure, it can be said that the front end weft thread 3a woven below the first warp thread 2A is fastened to the first warp thread 2A so as to be lifted up by the second warp thread 2B, and the rear end weft thread 22 woven above the first warp thread 2A is fastened to the first warp thread 2A so as to be pushed down by the second warp thread 2B.

Here, in the present invention, "upper side of the first warp thread 2A" and "lower side of the first warp thread 2A" refer to the "pile surface side of the first warp thread 2A" based on the first warp thread of the pile fabric placed horizontally on a table with the pile surface facing up, and are terms that refer to the "back side opposite the pile surface of the first warp thread 2A" as the "lower side of the first warp thread 2A." The terms "upper side of the first warp thread 2A" and "lower side of the first warp thread 2A" do not refer to the vertical positional relationship of multiple weft threads that are spun in succession during the weaving process of a horizontally woven pile fabric.

<Weft thread 3>
As shown in Figures 1 to 8, the weft yarns 3 are arranged along the weaving width direction or the longitudinal direction 3L of the weft yarns 3 (also called the weft direction) of the woven base fabric 4 (in other words, they are arranged side by side in the weaving direction).
The weft yarn 3 may be of any construction, such as monofilament or multifilament, and the total fineness of the weft yarn 3 is not particularly limited, but may be, for example, 20d (denier) or more and 1500d or less, preferably 50d or more and 1000d or less, and more preferably 100d or more and 600d or less, or may be a two-ply yarn (20/2) in which two single yarns of cotton count 20 are twisted together. The single fiber fineness of the weft yarn 3 is also not particularly limited, but may be, for example, 0.1d (denier) or more and 1500d or less, preferably 0.5d or more and 1000d or less, and more preferably 1d or more and 600d or less.

The material of the weft yarn 3 is similarly not particularly limited, and may be, for example, cotton fiber, polyester fiber such as PET, rayon fiber, nylon fiber, acetate fiber, or twisted or blended yarns thereof.
The number of weft threads 3 (the number of weft threads 3 woven per inch) is not particularly limited, and may be, for example, 40 to 220 (100).

<Each weft 3a, 3a', 3b, 3b', 3m>
As shown in Figs. 1 to 8, the weft 3 may have any weave as long as it is woven with the warp 2 to form the base fabric 4. For example, the front end side weft 3a and the front end side adjacent weft 3a' , a rear end side weft 3b, a rear end side adjacent weft 3b', and an intermediate weft 3m, and these wefts 3a, 3a', 3b, 3b', and 3m are arranged side by side in the weaving direction. That's fine.
Here, the front end side weft 3a is the weft 3 which is located at the front end of the three or more wefts 3 which are arranged in the longitudinal direction 2L of the warp threads 2 and is woven below or above the first warp thread 2A. The side adjacent weft 3a' is a weft 3 adjacent to the front end side weft 3a and woven above the first warp 2A other than the intermediate weft 3m described later. The rear end side weft 3b is a weft 3 woven in the longitudinal direction of the warp 2. The rearmost of the three or more weft yarns 3 in the direction 2L. The rear end side adjacent weft 3b' is a first warp thread adjacent to the rear end side weft 3b and other than the intermediate weft 3m described later. The intermediate weft 3m is a weft 3 woven above the warp 2A in the longitudinal direction 2L of the warp 2, and is a weft 3 other than the front end side weft 3a and the rear end side weft 3b among the three or more wefts 3 arranged in front and behind the warp 2 in the longitudinal direction 2L. (the weft 3 between the front end side weft 3a and the rear end side weft 3b).

The front end side weft 3a, the front end adjacent weft 3a', the rear end side weft 3b, the rear end adjacent weft 3b', and the intermediate weft 3m may all have approximately the same fineness (total fineness), or at least two of them may be different from each other. Furthermore, the front end side weft 3a, the front end adjacent weft 3a', the rear end side weft 3b, the rear end adjacent weft 3b', and the intermediate weft 3m may be made of the same material, or at least two of them may be different from each other.
In addition, for each of the weft threads 3a, 3a', 3b, 3b', 3m, a plurality of pile threads 5 are engaged along the longitudinal direction 2L of the warp threads 2, shifted by one or more (or zero) weft threads 3, and for one pile thread 5, the weft thread 3 may be the front end side weft thread 3a, and for another pile thread 5, the weft thread 3 may be the front end side adjacent weft thread 3a', the rear end side weft thread 3b, the rear end side adjacent weft thread 3b', or the intermediate weft thread 3m (or may be used for both).

With regard to the number of wefts 3a, 3a', 3b, 3b', and 3m, it can be said that for one pile yarn 5 described later, there is one each of the front end side weft 3a, the front end side adjacent weft 3a', the rear end side weft 3b, and the rear end side adjacent weft 3b', but the number of intermediate wefts 3m may be one or more (one, two, three, etc.).
Therefore, it can be said that the number of wefts 3 (front end side weft 3a, rear end side weft 3b, and intermediate weft 3m) that are engaged with each pile yarn 5 and move forward and backward in the weaving direction is three or more.

<Base fabric 4>
As shown in Figures 1 to 8, the base fabric 4 is formed by weaving the above-mentioned warp yarns 2 (first warp yarn 2A, second warp yarn 2B) and weft yarns 3 (front end side weft yarn 3a, front end side adjacent weft yarn 3a', rear end side weft yarn 3b, rear end side adjacent weft yarn 3b', and intermediate weft yarn 3m).
The structure (weave structure) of the base fabric 4 is not particularly limited, but for example, the first warp thread 2A and the second warp thread 2B in the warp threads 2 are arranged in pairs side by side in the weaving width direction, and each first warp thread 2A may pass under multiple weft threads 3 every time it passes over multiple weft threads 3.
In other words, it can be said that each first warp thread 2A and each weft thread 3 form a twill weave.

On the other hand, each second warp thread 2B may pass under one or more weft threads 3 for every one it passes over, and it can be said that it forms a plain weave or a twill weave with each weft thread 3.
In more detail, each second warp thread 2B may pass under one weft thread 3 every time it passes over one weft thread 3 (plain weave structure), or under two weft threads 3 every time it passes over one weft thread 3 (twill weave structure), or under three weft threads 3 every time it passes over one weft thread 3 (twill weave structure).

Here, if each first warp thread 2A passes under two weft threads 3 every time it passes over them, and each second warp thread 2B passes under one weft thread 3 every time it passes over one weft thread 3, then each time the first warp thread 2A passes over "one weft thread 3 located in the front" of the two weft threads 3 that it passes over, the second warp thread 2B passes over "one weft thread 3 located in the back" of the two weft threads 3 that it passes over, The second warp thread 2B that passes "under" the weft thread 3 of 3 is called the second warp thread 2B-1, and the second warp thread 2B that passes "above" the weft thread 3 of the rear weft thread 3 of the two weft threads 3 that each first warp thread 2A passes over, every time it passes "under" the weft thread 3 located in the front, is called the second warp thread 2B-2 (see Figures 3 to 8).

The thickness of the base fabric 4 is not particularly limited, but may be, for example, 0.01 mm or more and 1.00 mm or less, preferably 0.05 mm or more and 0.90 mm or less, and more preferably 0.10 mm or more and 0.80 mm or less (0.3 mm).
The width of the base fabric 4 is not particularly limited and may be, for example, 20 to 100 inches (65 inches). Furthermore, the number of reeds of the loom that weaves the base fabric 4 and pile 5 is not particularly limited and may be, for example, 10 or more and 90 or less reeds per inch.

<Pile yarn 5>
As shown in FIGS. 1 to 8, a plurality of pile yarns 5 are woven into the base fabric 4 described above.
The pile yarns 5 may be in any configuration as long as they are woven into the base fabric 4. For example, multiple pile yarns 5 may be arranged along the weaving direction between a pair of a first warp yarn 2A and a second warp yarn 2B.

Furthermore, with respect to three or more weft threads 3 (the front end side weft thread 3a, the rear end side weft thread 3b, and the intermediate weft thread 3m described above) that are arranged back and forth in the weaving direction, each pile thread 5 may pass over one weft thread 3 and then under one weft thread 3 every time it passes under one weft thread 3, or may pass over two or more weft threads 3 and then under one weft thread 3 every time it passes under one weft thread 3, or may pass over one weft thread 3 and then under two or more weft threads 3 every time it passes under two or more weft threads 3, or may pass over two or more weft threads 3 every time it passes under two or more weft threads 3 and then under two or more weft threads 3.
In this case, each pile yarn 5 woven into the base fabric 4 can be said to constitute a fast pile.

Each pile yarn 5 may be of any construction, such as monofilament or multifilament, and the total fineness of the pile yarn 5 is not particularly limited, but may be, for example, 20 d (denier) or more and 1500 d or less, preferably 50 d or more and 1000 d or less, and more preferably 100 d or more and 600 d or less. The single fiber fineness of the pile yarn 5 is also not particularly limited, but may be, for example, 0.1 d (denier) or more and 1500 d or less, preferably 0.5 d or more and 1000 d or less, and more preferably 1 d or more and 600 d or less.
The material of each pile yarn 5 is also not particularly limited, and may be, for example, nylon fiber, polyester fiber such as PET, cotton fiber, rayon fiber, acetate fiber, or twisted or blended yarns thereof.
Furthermore, the number of pile yarns 5 per inch is not particularly limited, and may be, for example, 10 to 100.

<Front end pile piece portion 5A, rear end pile piece portion 5B, middle portion 5M>
1 to 8, the front end pile piece 5A and the rear end pile piece 5B may be formed as follows: the front end pile piece 5A protrudes from the base fabric 4 after passing under the front end side weft 3a which is the foremost of the three or more adjacent wefts 3 (the front end side weft 3a, the rear end side weft 3b, and the intermediate weft 3m), and the rear end pile piece 5B protrudes from the base fabric 4 after passing under the rear end side weft 3b which is the rearmost of the three or more adjacent wefts 3. The protruding surfaces of these pile pieces 5A and 5B are also referred to as pile surfaces.
Here, each of the second warps 2B may pass over at least one of the front end side weft 3a and the rear end side weft 3b.

This makes it possible to maintain the pile pieces 5A, 5B of each pile yarn 5 in a state inclined in the weaving direction of the base fabric 4 (longitudinal direction 2L of the warp threads 2) without a separate shape stabilization process, by simply weaving the base fabric 4 and weaving the pile yarns 5.
Each pile thread 5 is anchored to the base fabric 4 by one front end side weft thread 3a, one or more intermediate weft threads 3m, and one rear end side weft thread 3b which are arranged in front and behind each other in the longitudinal direction 2L of the warp threads 2.

The multiple pile yarns 5 in one pile fabric 1 include pile yarns 5 that pass under a front end side weft 3a woven under the first warp thread 2A to erect a front end side pile piece 5A and at the same time pass under a rear end side weft 3b woven above the first warp thread 2A to erect a rear end side pile piece 5B, or pile yarns 5 that pass under a front end side weft 3a woven above the first warp thread 2A to erect a front end side pile piece 5A and at the same time pass under a rear end side weft 3b woven below the first warp thread 2A to erect a rear end side pile piece 5B.
On the other hand, each of the multiple pile yarns 5 in one pile fabric 1 (each pile yarn 5) has an intermediate portion 5M between the front end pile piece portion 5A and the rear end pile piece portion 5B, and this intermediate portion 5M passes above or below the above-mentioned intermediate weft yarn 3m.

To explain the relationship between this middle portion 5M and one or more intermediate wefts 3m in detail, if there is one intermediate weft 3m, each pile thread 5 will pass under the frontmost front side weft 3a, then over one intermediate weft 3m, and then under the rearmost rear side weft 3b, relative to the three wefts 3 (each of which is a front side weft 3a, a rear side weft 3b, and an intermediate weft 3m) moving forward and backward in the weaving direction.
Furthermore, if there are two intermediate wefts 3m, each pile thread 5 may pass under the frontmost front side weft 3a relative to the four wefts 3 (each of which is a front side weft 3a or a rear side weft 3b and two intermediate wefts 3m) moving forward and backward in the weaving direction, and then, for example, pass over the two intermediate wefts 3m together, and then pass under the rearmost rear side weft 3b.

Similarly, if there are three intermediate wefts 3m, each pile thread 5 passes under the frontmost front side weft 3a relative to the five wefts 3 (each of which is a front side weft 3a or a rear side weft 3b, and three intermediate wefts 3m) arranged in front of and behind the weaving direction, and then, for example, passes over one intermediate weft 3m every time it passes over another intermediate weft 3m (i.e., it passes over the frontmost intermediate weft 3m of the three intermediate wefts 3m, then passes under the central intermediate weft 3m in the weaving direction, and then passes over the rearmost intermediate weft 3m), and then passes under the rearmost rear side weft 3b.
Furthermore, if there are five intermediate wefts 3m, each pile thread 5 may pass under the frontmost front side weft 3a out of the seven wefts 3 (each of which is one front side weft 3a and one rear side weft 3b, and five intermediate wefts 3m) arranged in front of and behind the weaving direction, and then, for example, pass over one intermediate weft 3m every time it passes over one intermediate weft 3m (i.e., it passes over the frontmost intermediate weft 3m of the five intermediate wefts 3m, then passes under the next front intermediate weft 3m, then passes under the central intermediate weft 3m in the weaving direction, then passes over the next rearmost intermediate weft 3m after the center in the weaving direction, then passes over the rearmost intermediate weft 3m), and then passes under the rearmost rear side weft 3b.
In addition, each pile yarn 5 is similarly arranged with respect to nine or more weft yarns 3 arranged back and forth in the weaving direction.

In addition, it can be said that the front end side pile piece portion 5A of each pile yarn 5 stands up by passing between the front end side adjacent weft yarn 3a' which is woven adjacent to the front end side weft yarn 3a and above the first warp yarn 2A, and the front end side weft yarn 3a.
On the other hand, the rear end side pile piece portion 5B of each pile yarn 5 can be said to stand up by passing between the rear end side adjacent weft yarn 3b' woven adjacent to the rear end side weft yarn 3b and above the first warp yarn 2A, and the rear end side weft yarn 3b.

Of the front end pile piece portions 5A of each pile yarn 5, the front end pile piece portion 5A in which the front end weft yarn 3a is woven below the first warp yarn 2A is inclined toward the rear, that is, in the direction away from the front end adjacent weft yarn 3a', with the front end weft yarn 3a as the center, and the front end pile piece portion 5A in which the front end weft yarn 3a is woven above the first warp yarn 2A is inclined toward the front, that is, in the direction approaching the front end adjacent weft yarn 3a', with the front end weft yarn 3a as the center.
In contrast, of the rear end pile piece portions 5B of each pile yarn 5, the rear end pile piece portion 5B in which the rear end weft yarn 3b is woven above the first warp yarn 2A is inclined toward the rear, that is, in a direction approaching the rear end adjacent weft yarn 3b' with the rear end weft yarn 3b as the center, and the rear end pile piece portion 5B in which the rear end weft yarn 3b is woven below the first warp yarn 2A is inclined toward the front, that is, in a direction away from the rear end adjacent weft yarn 3b' with the rear end weft yarn 3b as the center.

Here, in the case where the pile yarn 5 is engaged with three weft yarns 3 (one intermediate weft yarn 3m) and 16 (or 8) weft yarns 3 form one complete weave, if we were to provisionally number these 16 weft yarns 3 from 1 to 16 as shown in Figures 3 to 8, then the pile yarn 5 in which each pile piece 5A, 5B is "inclined toward the 'rear' and engaged with the weft yarn 3 from approximately the center and rear (e.g., No. 7, No. 15)" would be designated as pile yarn 5-1, and similarly, the pile pieces 5A, 5B in which each pile piece 5A, 5B is "inclined toward the 'front'" would be designated as pile yarn 5-2. The pile yarn 5 with the pile pieces 5A, 5B inclined toward the "back" and hooking onto the weft yarn 3 from the front and rear parts (e.g., no. 3, no. 11) is called pile yarn 5-3, and similarly, the pile yarn 5 with the pile pieces 5A, 5B inclined toward the "forward" and hooking onto the weft yarn 3 from the front and approximately center (e.g., no. 2, no. 10) is called pile yarn 5-4 (see Figures 3 to 8).

In addition, "towards the rear", which is one of the inclination directions of the front end pile piece 5A and the rear end pile piece 5B, may be a direction approximately along the longitudinal direction 2L of the warp thread 2, or may be an angle of 0° or more and 60° or less, preferably 0° or more and 50° or less, or 0° or more and 45° or less, in any direction of the longitudinal direction 3L of the weft thread 3 across the longitudinal direction 2L of the warp thread 2.
The other of the inclination directions of the front end pile piece 5A and the rear end pile piece 5B, "near the front", may mean a direction substantially along the longitudinal direction 2L of the warp thread 2 and opposite to the above-mentioned "near the rear", or may mean a direction opposite to the above-mentioned "near the rear" and facing an angle of 0° or more and 60° or less, preferably 0° or more and 50° or less, or 0° or more and 45° or less in either direction of the longitudinal direction 3L of the weft thread 3 across the longitudinal direction 2L of the warp thread 2.

The inclination angle α of the front end pile piece 5A and the rear end pile piece 5B of each pile yarn 5 with respect to the base fabric 4 (the upper surface (front surface) of the base fabric 4) may be 10° or more and 80° or less, preferably 30° or more and 75° or less, and more preferably 50° or more and 70° or less (60° or 65°, etc.).
The vertical length of the pile yarn 5 (pile length) is the length of each of the pile pieces 5A, 5B in the vertical direction and is not particularly limited, but may be, for example, 0.4 mm or more and 5.0 mm or less, preferably 0.6 mm or more and 4.5 mm or less, and more preferably 0.9 mm or more and 4.0 mm or less (1.7 mm or 1.9 mm).

At least some of the adjacent pile yarns 5 of the plurality of pile yarns 5 described above may cross each other when viewed in the longitudinal direction of the weft yarn 3 (when viewed from the side).
When viewed in the longitudinal direction of the weft yarns 3 (when viewed from the side), the term "crossing" includes cases where the weft yarns 3 are inclined and cross in the same direction, and cases where the weft yarns 3 are inclined and cross in opposite directions.
Moreover, the adjacent piles 5 may be inclined in opposite directions when viewed in the longitudinal direction of the weft yarn 3 .

＜Other＞
The present invention is not limited to the above-described embodiment. Each component of the pile fabric 1 and the like, or the overall structure, shape, dimensions, etc., can be appropriately changed in accordance with the gist of the present invention.
The pile yarns 5 (the front end pile piece portion 5A and the rear end pile piece portion 5B) do not have to intersect when viewed in the longitudinal direction of the weft yarns 3 (when viewed from the side) so long as they are inclined toward the rear or front.

The pile fabric 1 may be formed such that the pile yarns 5 anchored to the base fabric 4 and the pile-free yarn portions 5' to which the pile yarns 5 are not anchored are alternately formed approximately along the first warp yarns 2A and the second warp yarns 2B (approximately along the longitudinal direction 2L of the warp yarns 2).
Furthermore, the front end adjacent weft 3a' and the rear end adjacent weft 3b' may be disposed in the pile-free portion 5'.

In the pile fabric 1, the pile yarns 5 anchored to the base fabric 4 and the pile-free yarn portions 5' to which the pile yarns 5 are not anchored may be alternately formed substantially along the weft yarns 3, that is, the front end side weft yarn 3a, the front end side adjacent weft yarn 3a', the rear end side weft yarn 3b, the rear end side adjacent weft yarn 3b', and the intermediate weft yarn 3m (substantially along the longitudinal direction 3L of the weft yarn 3).
The pile fabric 1 may have a pile row in which the pile yarns 5 held by the base fabric 4 are formed in a substantially row-like shape along the first warp yarns 2A and the second warp yarns 2B, and a pile-free yarn section 5' in which the pile yarns 5 are not held in a substantially row-like shape along the first warp yarns 2A and the second warp yarns 2B, and these pile rows and pile-free rows may form a striped pattern. The pile-free yarn section 5' may be a section woven by the weft yarns 3 other than the front end side weft 3a, the front end side adjacent weft 3a', the rear end side weft 3b, the rear end side adjacent weft 3b', and the middle weft 3m. The pile-free yarn section 5' may also be a section woven by the weft yarns 3 other than the front end side weft 3a, the front end side adjacent weft 3a', the rear end side weft 3b, the rear end side adjacent weft 3b', and the middle weft 3m. The pile-free yarn section 5' may also be a section woven by the weft yarns 3 other than the front end side weft 3a, the front end side adjacent weft 3a', the rear end side adjacent weft 3b', and the middle weft 3m.
The back surface of the base fabric 4 may be coated with a synthetic resin such as an acrylic resin adhesive to form a back coating (backing).

The pile fabric of the present invention can be used around the suction port of a gas such as air, for example, around the suction port of a vacuum cleaner nozzle, and can also be attached to a brush support rod with a handle or a rotating brush cylinder. It can also be used to wipe off dust from the surface of fabrics, clothes, sheets, sofas and beds, seats, LCD panels, plastic films, and metal sheets, and can be used in any product that sweeps up dust.

1 pile fabric 2 warp 2A first warp 2B second warp 3 weft 3a front end side weft 3a' front end side adjacent weft 3b rear end side weft 3b' rear end side adjacent weft 3m intermediate weft 4 base fabric 5 pile 5A front end side pile piece 5B rear end side pile piece 5M middle section

Claims (3)

A pile fabric comprising a base fabric (4) woven with warp yarns (2) and weft yarns (3) and a plurality of pile yarns (5) woven into the base fabric (4),
The warp threads (2) include a first warp thread (2A) and a second warp thread (2B),
Each of the plurality of pile yarns (5) is anchored to the base fabric (4) by a front end side weft (3a), one or more intermediate wefts (3m), and a rear end side weft (3b) which are arranged in front and behind the warp yarns (2) in the longitudinal direction.
The plurality of pile yarns (5) include pile yarns which pass under a front end side weft (3a) woven under the first warp yarn (2A) to form a front end side pile piece (5A) standing up and pass under a rear end side weft (3b) woven above the first warp yarn (2A) to form a rear end side pile piece (5B) standing up, and pile yarns which pass under a front end side weft (3a) woven above the first warp yarn (2A) to form a front end side pile piece (5A) standing up and pass under a rear end side weft (3b) woven below the first warp yarn (2A) to form a rear end side pile piece (5B) standing up,
Each of the plurality of pile yarns (5) has an intermediate portion (5M) between the front end side pile piece portion (5A) and the rear end side pile piece portion (5B) passing above or below the intermediate weft yarn (3m);
The front end side pile piece portion (5A) passes between the front end side weft (3a) and a front end side adjacent weft (3a') woven adjacent to the front end side weft (3a) and above the first warp thread (2A), and stands up.
The rear end side pile piece portion (5B) passes between the rear end side weft (3b) and a rear end side adjacent weft (3b') woven adjacent to the rear end side weft (3b) and above the first warp thread (2A), and stands up.
Among the front end side pile pieces (5A), the front end side pile piece (5A) in which the front end side weft (3a) is woven below the first warp thread (2A) is inclined toward the rear, that is, in a direction away from the front end side adjacent weft (3a') about the front end side weft (3a), or the front end side pile piece (5A) in which the front end side weft (3a) is woven above the first warp thread (2A) is inclined toward the front, that is, in a direction approaching the front end side adjacent weft (3a') about the front end side weft (3a),
The pile fabric is characterized in that, among the rear end side pile pieces (5B), the rear end side pile piece (5B) in which the rear end side weft (3b) is woven above the first warp thread (2A) is inclined toward the rear, i.e., in a direction approaching the rear end side adjacent weft (3b'), with the rear end side weft (3b) as the center, or the rear end side pile piece (5B) in which the rear end side weft (3b) is woven below the first warp thread (2A) is inclined toward the front, i.e., in a direction away from the rear end side adjacent weft (3b'), with the rear end side weft (3b) as the center. The pile fabric according to claim 1, characterized in that the shrinkage ratio of the first warp thread (2A) is smaller than the shrinkage ratio of the second warp thread (2B). The pile fabric according to claim 1 or 2, characterized in that at least some of the pile yarns (5) are arranged such that adjacent pile yarns (5) cross each other when viewed in the longitudinal direction of the weft yarn (3).

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