JP6579616B2 - "Rayon cotton" rubbing material - Google Patents

Description

  The present invention relates to a rubbing material used for forming an alignment film that promotes alignment of liquid crystal elements on the surface of a substrate of a liquid crystal panel.

Conventionally, in a method for manufacturing a liquid crystal display device, an alignment process for determining an initial alignment of liquid crystal molecules in a liquid crystal layer is known (Patent Document 1).
A rubbing cloth is used in the alignment process in the manufacturing method of the liquid crystal display device.

JP 2002-296621 A

  However, in Patent Document 1 described above, as described in claim 8 and the like, cotton is used as the material of the rubbing cloth. In this case, as shown in Table 1 described later, the liquid crystal panel after rubbing is used. The amount of dust adhering to the surface of the substrate increases and is easily scratched.

  In view of the above, the present invention includes a rubbing that can achieve both “reduction in the amount of attached dust” and “suppression of scratches” on the substrate surface of the liquid crystal panel by including rayon fibers and cotton fibers in the pile yarn. The purpose is to provide materials.

A rubbing material 1 according to the present invention is a rubbing material having a base fabric 4 woven with warp yarns 2 and weft yarns 3 and pile yarns 5 woven into the base fabric 4, wherein the pile yarn 5 is a rayon fiber. and it viewed including cotton fibers, single fiber fineness of each rayon fiber and cotton fibers included in the pile yarn 5, both a 5 denier or less, the total fineness of the entire pile yarn 5, 30 denier 600 the der Rukoto following denier and first feature.

The second feature of the rubbing material 1 according to the present invention is that in addition to the first feature, the pile yarn 5 is a twisted yarn obtained by twisting a rayon fiber yarn and a cotton fiber yarn .

A third feature of the rubbing material 1 according to the present invention is that, in addition to the first or second feature, the pile yarn 5 includes only rayon fiber and cotton fiber, and the warp yarn 2 and the weft yarn 3 in the base fabric 4. Is not containing rayon fibers and cotton fibers .

The fourth feature of the rubbing material 1 according to the present invention is that, in addition to any of the first to third features, the warp 2 includes a thick warp 2a and two fine warps 2b thinner than the thick warp 2a. One set of warp yarns 2a are arranged side by side in the weaving width direction, and each of the thick warp yarns 2a passes through the three weft yarns 3 with respect to the weft yarns 3 arranged in the weaving direction. Each of the fine warp yarns 2b passes below the one weft yarn 3 with respect to the weft yarn 3 arranged in the weaving direction, and passes below the one weft yarn 3 to pass the pile yarn 5 Are arranged between the thick warp yarn 2a and the fine warp yarn 2b in each set along the weaving direction, and each of the pile yarns 5 has one weft 3 that moves back and forth in the weaving direction. Each time it passes under the weft 3, it passes over one weft 3 and then passes under one weft 3, and the pile yarn 5 This is because the front pile piece 5a protrudes from the base cloth 4 after passing under the frontmost weft 3a of the three front and rear wefts 3, and the rearmost weft 3b of the three front and rear wefts 3. the pile pieces 5b after projecting from the base fabric 4 is formed after having passed under the respective said fine warp 2b is that not pass over the both forward most weft 3a and rearmost weft 3b weft In the point.

The fifth feature of the rubbing material 1 according to the present invention is that, in addition to any one of the first to third features, the warp 2 includes a thick warp 2a and two fine warps 2b thinner than the thick warp 2a. A set of warp yarns 2a are arranged side by side in the weaving width direction, and each of the thick warp yarns 2a has one weft yarn 3 each passing over the three weft yarns 3 with respect to the weft yarns 3 arranged in the weaving direction. It passes below, each of the fine warp yarn 2b, to the weft 3 that is arranged in the weaving direction, passes under three wefts 3 per pass over one weft 3, wherein the pile yarn 5 , during the thick warp 2a and fine warp yarns 2b in each set, a plurality arranged along the weaving direction, the pile yarn 5 are each, for three wefts 3 before and after the weaving direction, one Each time it passes under the weft 3, it passes over one weft 3 and then passes under one weft 3, and the pile yarn 5 Zorewa, a pile piece 5a before projecting from the base fabric 4 after having passed under the frontmost weft 3a in three weft 3 to the front and rear the most posterior of the weft in three weft 3 to the front and rear the the pile pieces 5b formed after projecting from the base fabric 4 after having passed under the 3b, the fine warp 2b respectively of the foremost weft 3a and rearmost weft 3b, only the most posterior of the weft 3b It is in the point passing over.

Due to these characteristics, by adding rayon fiber and cotton fiber to the pile yarn 5, as shown in Table 1, compared to the case of using cotton as in Patent Document 1, the surface of the substrate of the liquid crystal panel after rubbing is improved. The amount of attached dust is reduced and scratches are difficult to be damaged.
That is, it is possible to achieve both “reduction of attached dust” and “suppression of scratches”.

The fineness S of the rayon fibers contained in the pile yarn 5 is preferably 5 denier or less, and the rayon fibers contained in the pile yarn 5 are made of cupra fibers, thereby further reducing “the amount of attached dust” and “ “Scratch suppression” can be achieved.
In the pile yarn 5, the ratio R in which the rayon fiber is contained may be 30% or more.

Further, each time each thick warp 2 a passes over a plurality of wefts 3, it passes under one weft 3, and each fine warp 2 b passes 1 or more and 3 or less each time it passes over one weft 3. Each pile yarn 5 between the thick warp yarn 2a and the fine warp yarn 2b passes under one weft yarn 3 after passing through one weft yarn 3 every time it passes under one weft yarn 3. 3, and the pile yarn 5 forms a front pile piece 5a that passes under the frontmost weft 3a and a rear pile piece 5b that passes under the rearmost weft 3b. Form stabilization processing is performed so that the protruding portion of the pile yarn is held in a state inclined in the weft direction of the ground structure by passing it over at least one of the frontmost weft 3a and the rearmost weft 3b. The pile pieces 5a and 5b can be moved in the weaving width direction only by weaving the base fabric 4 and weaving the pile yarn 5 without separately providing them. It is possible to tilt.
In addition, the rubbing roll 1 (the length in the direction of the rotation axis) is any value (for example, a value exceeding 2.3 m), if the rubbing material 1 in which the pile piece is inclined in the woven width direction, The pile piece can be inclined along the rotation direction of the rubbing roll.

  According to the rubbing material according to the present invention, the pile yarn can contain rayon fibers and cotton fibers to achieve both “reduction of the amount of attached dust” and “suppression of scratches” on the substrate surface of the liquid crystal panel.

The rubbing material which concerns on this invention is illustrated, (a) is an organization chart, (b) is the 1st cross section side view in the weaving location of the thick warp 2a and the fine warp 2b in the organization chart of (a). And (c) is a second cross-sectional side view at the weaving location of the thick warp yarn 2a 'and the fine warp yarn 2b' in the structure diagram of (a). It is the AFM image which shows the Example used by the test in this invention, and a comparative example, and the sectional side view of the said AFM image, (a) shows Example 1, (b) shows Example 2, ( c) shows Comparative Example 1. The modification 1 of the rubbing material which concerns on this invention is shown, (a) is an organization chart, (b) is a 1st cross section side view, (c) is a 2nd cross section side view. The modification 2 of the rubbing material which concerns on this invention is shown, (a) is an organization chart, (b) is a 1st cross section side view, (c) is a 2nd cross section side view. The modification 3 of the rubbing material which concerns on this invention is shown, (a) is an organization chart, (b) is a 1st cross section side view, (c) is a 2nd cross section side view.

Hereinafter, embodiments of the present invention will be described with reference to the drawings.
<Overall configuration of rubbing material 1>
1 to 5 illustrate a rubbing material (rubbing cloth) 1 according to an embodiment of the present invention.
The rubbing material 1 is used for a rubbing process for forming an alignment film that promotes alignment of liquid crystal elements on the surface of a substrate of a liquid crystal panel.
In the rubbing process, a rotating rubbing roll wound with a rubbing material 1 (also referred to as a liquid crystal panel substrate rubbing material) is applied to the surface of the liquid crystal panel substrate and rubbed, and fine rubbing grooves along the rotation direction are formed. Form.

Such a rubbing material 1 has a base fabric 4 woven with warp yarns 2 and weft yarns 3 and pile yarns 5 woven into the base fabric 4.
The thickness of the rubbing material 1 is a value obtained by adding the thickness of the base fabric 4 and the vertical length (pile length) of the pile yarn 5 and is not particularly limited. For example, the thickness is 0.5 mm to 5.0 mm. It may be 0.7 mm or more and 4.5 mm or less, more preferably 1.0 mm or more and 4.0 mm or less (2.0 mm or 2.2 mm).

<Warn 2>
As shown in FIGS. 1-5, the warp 2 is arrange | positioned along the weaving direction (warp direction) in the base fabric 4 woven (in other words, it is arrange | positioned along with the weaving width direction). .
The warp 2 may be any structure as long as it is woven with the weft 3 to form the base fabric 4. For example, the warp 2 has a thick warp 2a and a fine warp 2b, and these two types of warps 2a, 2b. May be arranged side by side in the weaving width direction in pairs.

<Large warp 2a>
As shown in FIGS. 1 to 5, the thick warp 2a is a warp thicker than the above-described fine warp 2b, and may have any configuration such as a monofilament or a multifilament.
The fineness (total fineness) of the thick warp 2a is not particularly limited as long as it is thicker than the fine warp 2b. For example, it is 30 denier (d) to 500 denier (d), preferably 40 d to 450 d, and more preferably. 50d or more and 400d or less (75d≈84 dtex (more specifically, 84T / 36F (84 dtex for the entire 36 multifilaments)), 150d, etc.).

The material of the thick warp yarn 2a is not particularly limited, but may be, for example, polyester fiber such as PET, or cotton (cotton) fiber.
In addition, the material of the thick warp yarn 2a may be rayon fiber, nylon fiber, acetate fiber, or a twisted yarn or a mixed yarn of the above-described fibers.

<Thin warp 2b>
As shown in FIGS. 1 to 5, the fine warp 2b is a warp thinner than the above-described thick warp 2a, and may have any configuration such as a monofilament or a multifilament.
The fineness (total fineness) of the fine warp yarn 2b is not particularly limited as long as it is finer than that of the thick warp yarn 2a. For example, the fine warp yarn 2b is 20d to 490d, preferably 30d to 440d, and more preferably 40d to 390d (50d≈56dtex). (In more detail, it may be 56T / 24F (56 dtex for 24 multifilaments in total) or 100d).
Similarly, the material of the fine warp yarn 2b is not particularly limited, but may be, for example, polyester fiber such as PET, cotton fiber, rayon fiber, nylon fiber, acetate fiber, a twisted yarn or a mixed yarn thereof.

<Weft 3>
As shown in FIGS. 1-5, the weft 3 is arrange | positioned along the weaving width direction (weft direction) in the base fabric 4 to be woven (in other words, it is arrange | positioned along with the weaving direction). .
The weft 3 may have any configuration such as monofilament or multifilament, and the fineness of the weft 3 is not particularly limited, but is, for example, 20d to 500d, preferably 30d to 450d, and more preferably 40d to 400d (50d). 56 dtex (more specifically, 56T / 24F (total of 24 multifilaments is 56 dtex)) or 100d).
Similarly, the material of the weft 3 is not particularly limited, but may be, for example, polyester fiber such as PET, cotton fiber, cotton fiber, rayon fiber, nylon fiber, acetate fiber, twisted yarn or blended yarn thereof. Further, the number of wefts 3 to be driven (the number of wefts 3 driven in 1 inch) is not particularly limited, and may be, for example, 90 to 110 (100).

<Fabric 4>
As shown in FIGS. 1 to 5, the base fabric 4 is configured by weaving the warp 2 (thick warp 2 a and fine warp 2 b) and the weft 3 described above.
The structure (woven structure) of the base fabric 4 is not particularly limited, but, for example, two thick warps 2a and two thin warps 2b in the warp 2 are arranged side by side in the weaving width direction. Each time it passes over a plurality of wefts 3, it may pass under one weft 3.
That is, it can be said that each thick warp yarn 2a forms a twill weave structure with each weft yarn 3.

On the other hand, each fine warp 2b may pass under one or more and three or less wefts 3 every time it passes over one weft 3, and constitutes each weft 3 and plain weave or twill weave. It can be said that they are doing.
More specifically, each fine warp 2b passes under one weft 3 (plain weave structure) every time it passes over one weft 3, and every time it passes over one weft 3. The case of passing under the weft 3 (twill weave structure) and the case of passing under the three wefts 3 (twill weave structure) each time passing over one weft 3 may be used.

1 and 2 show a case where each fine warp 2b passes under one weft 3 every time it passes over one weft 3, and FIGS. 3 and 4 show one fine warp 2b. The case where two or more wefts 3 pass under each weft 3 is shown.
Although the thickness of the base fabric 4 is not particularly limited, 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, more preferably 0.10 mm or more and 0.80 mm or less (0.3 mm ). Moreover, the width | variety of the base fabric 4 also does not have limitation in particular, For example, 20-100 inches (60 inches) may be sufficient. Furthermore, the number of looms of the loom for weaving the base fabric 4 and the pile 5 is not particularly limited, and may be, for example, 40 to 50 (46).

<Pile yarn 5>
As shown in FIGS. 1 to 5, the pile yarn 5 is woven into the above-described base cloth 4 and includes rayon fibers and cotton fibers.
The pile yarn 5 may have any configuration as long as it is woven into the base fabric 4. For example, a plurality of pile yarns 5 are formed along the weaving direction between the thick warp yarn 2a and the fine warp yarn 2b. It may be arranged.

Each pile yarn 5 passes over one weft 3 every time it passes under one weft 3 with respect to three or more odd-numbered wefts 3 moving back and forth in the weaving direction. May pass under the weft 3.
In this case, it can be said that each pile yarn 5 woven into the base fabric 4 constitutes a fast pile.

<Pile pieces 5a and 5b before and after>
Each pile yarn 5 includes a front pile piece 5a protruding from the base fabric 4 after passing under the foremost weft 3a of the odd number of wefts 3 and the odd number of wefts 3; You may form the back pile piece 5b which protrudes from the base fabric 4, after passing under the backmost weft 3b in the weft 3. FIG.
Here, each of the fine warp yarns 2b described above may pass over at least one of the frontmost weft yarn 3a and the rearmost weft yarn 3b.
Thus, the pile 4 can be woven and the pile yarn 5 can be woven without separate form stabilization so that the protruding portion of the pile yarn is held in an inclined state in the weft direction of the ground structure. The pieces 5a and 5b can be inclined in the weaving width direction.

In addition, the pile pieces (the front and rear pile pieces 5a and 5b) are inclined in the weaving width direction regardless of the value (for example, a value exceeding 2.3 m) of the width of the rubbing roll (the length in the rotation axis direction). If the rubbing material 1 is used, the pile pieces (the front and rear pile pieces 5a and 5b) can be inclined along the rotation direction of the rubbing roll.
The inclination angle of the pile piece is not particularly limited, but is, for example, 20 ° to 90 ° (that is, upright), preferably 25 ° to 85 °, and more preferably 30 ° to 80 ° (75 °).
The vertical length (pile length) of the pile yarn 5 is the length in the vertical direction of the front and rear pile pieces 5a and 5b, and is not particularly limited, but is, for example, 0.4 mm or more and 5.0 mm or less, preferably May be 0.6 mm or more and 4.5 mm or less, more preferably 0.9 mm or more and 4.0 mm or less (1.7 mm or 1.9 mm).

<Material of pile yarn 5>
As long as each pile yarn 5 includes rayon fiber and cotton fiber, any other material may be included, and for example, polyester fiber such as PET may be included.
On the contrary, each pile yarn 5 may contain only rayon fiber and cotton fiber. In this case, each pile yarn 5 may be a laid yarn of rayon fiber and cotton fiber or a blended yarn. .

Each pile yarn 5 is configured to include rayon fiber and cotton fiber, or in the plurality of pile yarns 5, a pile yarn 5 including only rayon fiber and a pile yarn 5 including only cotton fiber are respectively provided. May exist.
Furthermore, in the plurality of pile yarns 5, there may be a pile yarn 5 including only rayon fibers, a pile yarn 5 including only cotton fibers, and a pile yarn 5 including rayon fibers and cotton fibers.

If the pile yarn 5 also contains rayon fiber and cotton fiber, it is a twisted yarn of rayon fiber (monofilament or multifilament) and cotton fiber (monofilament or multifilament), or a blended yarn of rayon fiber and cotton fiber. Any configuration may be used.
The fineness (total fineness) of the pile yarn 5 as a whole is not particularly limited, and may be, for example, 30 d or more and 600 d or less, preferably 40 d or more and 550 d or less, more preferably 50 d or more and 5000 d or less (238 d or the like).

<Fineness S of rayon fiber, ratio R containing rayon fiber>
The fineness (single fiber fineness) S of the rayon fiber contained in the pile yarn 5 is not particularly limited, but is, for example, 5 denier (5.0 d) or less, preferably 4.5 d or less, more preferably 4.0 d or less. It may be 3.5d (more specifically, 167T (≈150d) / 42F (167 dtex (≈150d) for all 42 multifilaments)).

The rayon fiber contained in the pile yarn 5 may be a cupra fiber (a kind of rayon fiber), and the single fiber fineness (fineness S) at this time is not particularly limited. 0.0d or less, preferably 4.5d or less, and more preferably 4.0d or less. For example, 1.6d (more specifically, 167T (≈150d) / 90F (total of 90 multifilaments is 167 dtex). (≈150d))).
In the pile yarn 5, the ratio (weight ratio) R in which the rayon fiber is contained is not particularly limited, such as 5%, 10%, 20%, etc., but may be, for example, 30% or more, preferably 40% or more. More preferably, it may be 50% or more (approximately 62% or the like).

<Fineness S 'of cotton fiber>
The fineness (single fiber fineness) S ′ of the cotton fiber contained in the pile yarn 5 is not particularly limited, but may be thinner than the rayon fiber.
Specifically, the fineness S ′ of the cotton fiber is not particularly limited, but may be, for example, 5.0 d or less, preferably 4.5 d or less, and more preferably 4 d or less. It may be 2d or less (more specifically, a single yarn of 60 cotton count).
Incidentally, 60 cotton count = 88.58026... Denier≈89 denier (89d).

<Test>
In the test of the present invention, Example 1, Example 2, and Comparative Example 1 were prepared for the rubbing material 1 described so far, and the liquid crystal panel of Example 1, Example 2, and Comparative Example 1 was prepared. Check the amount of dust and the degree of scratches on the substrate surface.
First, Example 1, Example 2, and Comparative Example 1 will be described in detail.

<Example 1>
In the rubbing material 1 of Example 1, the thick warp 2a is a polyester fiber processed yarn having a total fineness of 75d / 36F (84 dtex / 36F), and the fine warp 2b is a polyester fiber processed yarn having a total fineness of 50d / 24F (56 dtex / 24F). The weft yarn 3 is a polyester fiber processed yarn having a total fineness of 50d / 24F (56 dtex / 24F), and the pile yarn 5 is a rayon fiber yarn having a total fineness of 150d / 42F (167 dtex / 42F) and 60 cotton counts (60/1) Cotton yarn = 88.58026... D≈89d) is used as a twisted yarn (double yarn) twisted together.
Each thick warp 2a constitutes a twill weave structure that passes under one weft 3 every time it passes over three wefts 3 with respect to the wefts 3 arranged side by side in the weaving direction. The base fabric 4 is formed by forming a plain weave structure that passes under one weft 3 for each weft 3 arranged side by side in the weaving direction. ing.
A plurality of pile yarns 5 are arranged along the weaving direction between the thick warp yarns 2a and the fine warp yarns 2b arranged in a line in the weaving width direction as a pair, and three weft yarns 3 moving back and forth in the weaving direction. On the other hand, after passing under one weft 3, it passes over one weft 3, and then passes under one weft 3, and is substantially W-shaped in a side sectional view (that is, Fast pile).
Each pile yarn 5 includes a front pile piece 5a protruding from the base fabric 4 after passing under the frontmost weft 3a in the three front and rear wefts 3, and the rearmost weft 3b in the three front and rear wefts 3. The rear pile pieces 5b projecting from the base fabric 4 after passing under are formed, and each fine warp yarn 2b passes over both the weft yarns 3 of the frontmost weft yarn 3a and the rearmost weft yarn 3b.
The pile fabric of the fast pile thus woven has a pile density of 480 pieces / cm ² , a thickness of 2.0 mm (pile length of 1.7 mm), and the inclination of the pile pieces 5a and 5b with respect to the base fabric 4 is approximately 75 °. Then, Example 1 was obtained by applying an acrylic resin-based adhesive (emulsion) to the back surface of the base fabric 4 of the pile fabric and finishing the rubbing material 1.

<Example 2>
The difference between the rubbing material 1 of Example 2 and the rubbing material 1 of Example 1 is that the pile yarn 5 is made of a cupra fiber yarn having a total fineness of 150 d / 42 F (167 dtex / 42 F) and a total fineness of 60 cotton counts (60 / 1 cotton count = 88.58026... D≈89d) is only a twisted yarn (twist yarn) twisted together, and the other fineness and configuration are the same as in Example 1. is there.

<Comparative Example 1>
The main difference between the rubbing material 1 of Comparative Example 1 and the rubbing materials 1 of Examples 1 and 2 was that the pile yarn 5 was twisted with two cotton fiber yarns of 40 cotton counts (60/1 cotton count). The cotton fiber yarn used in Comparative Example 1 is a super combed yarn in which hairs are removed to the limit.
In the rubbing material 1 of Comparative Example 1, the thick warp yarn 2a, the fine warp yarn 2b, and the weft yarn 3 are also cotton fiber yarns, and the woven pile fabric has a pile density of 300 pieces / cm ² and a thickness of 2.2 mm. The yarn is substantially V-shaped in a side sectional view. Other configurations are the same as those of the first and second embodiments.

Features in Example 1, Example 2, and Comparative Example 1, amount of dust attached to the substrate of the liquid crystal panel after rubbing, ease of scratching of the substrate surface of the liquid crystal panel (laser scattering experiment), unevenness in the rubbing material 1 Is shown in Table 1 below.
Further, FIG. 2 shows an AFM image (Atomic Force Microscope, an image of an atomic force microscope) showing the surface states of Example 1, Example 2, and Comparative Example 1, and a cross section of the AFM image.

<Evaluation of test>
As shown in Table 1, by adding rayon fiber or cotton fiber to the pile yarn 5 as in Examples 1 and 2, the liquid crystal panel after rubbing compared to the case of using only cotton fiber as in Comparative Example 1 The amount of dust adhering to the substrate surface is reduced and scratches are difficult to be damaged.
That is, it is possible to achieve both “reduction of attached dust” and “suppression of scratches”.
Further, by comparing Example 1 and Example 2 and using rayon fibers contained in the pile yarn 5 as cupra fibers, further “reduction of attached dust” and “suppression of scratches” can be achieved.

  The fineness (single fiber fineness) S of the rayon fiber (or cupra fiber) contained in the pile yarn 5 in Examples 1 and 2 is the total fineness 150d ÷ 42F = 3.571428 in Example 1. ≈3.6d, and in Example 2, the total fineness is 150d ÷ 90F = 1.666... ≈1.7d, and is 5.0d or less, preferably 4.5d or less, more preferably 4.0d or less. May be.

The ratio (weight ratio) R in which the rayon fibers are contained in the pile yarn 5 will be described below.
In Example 1, the pile yarn 5 as a whole has a total fineness of 239d by adding rayon fiber yarn 150d and cotton fiber yarn of cotton fiber yarn 60 cotton count≈89d.
Here, rayon fibers having a specific gravity (density) of 1.51 g / cm ^3, since the cotton fibers of specific gravity (density) is 1.54 g / cm ^3, the weight ratio R is rayon fiber: cotton fibers = 150 × 1.51: 89 × 1.54 = 226.5: 137.06 = 62.300 ...: 37.696 ... ≈62: 38.
That is, in Example 1, the ratio (weight ratio) R in which the rayon fibers are included is approximately 62%.
Similarly, the pile yarn 5 of Example 2 as a whole is the same as in Example 1, and becomes a cupra fiber yarn 150d and a cotton fiber yarn 89d, and the specific gravity (density) of the cupra fiber is 1.50 g / cm ³ . Therefore, the weight ratio R is cupra fiber: cotton fiber = 150 × 1.50: 89 × 1.54 = 225.0: 137.06 = 62.144 ...: 37.855 ... ≈62 : 38.
That is, in Example 2, the ratio (weight ratio) R in which the cupra fibers are included is also approximately 62%.
Therefore, as a lower limit value of the weight ratio R, the amount of attached dust begins to decrease between 0% of the comparative example 1 and approximately 62% of the first and second embodiments, and the weight ratio R starts to be suppressed from being scratched. In other words, if the weight ratio R is 30% or more between 0% and approximately 62%, “reducing the amount of attached dust” and “suppressing scratches” It can be said that it occurs.
Therefore, the ratio (weight ratio) R in which the rayon fiber is contained in the pile yarn 5 may be 30% or more, preferably 40% or more, and more preferably 50% or more.
In addition, since the pile yarn 5 contains rayon fiber and cotton fiber, the upper limit of the ratio (weight ratio) R in which rayon fiber is contained may be 99%, for example.

<Modification 1>
FIG. 3 shows a rubbing material 1 according to Modification 1 of the embodiment of the present invention.
This modification 1 is most different from the above-described embodiment (Examples 1 and 2) in that each fine warp 2b is placed on one weft 3 with respect to the weft 3 arranged side by side in the weaving direction. Each time it passes, it forms a twill weave structure that passes under the two wefts 3, and each fine warp 2b is one of the frontmost weft 3a and the rearmost weft 3b (the rearmost weft 3). It is a point that passes only above 3b).

Thus, even if each fine warp yarn 2b passes only over the rearmost weft yarn 3b, the rear pile piece 5b maintains the inclined state, so the protruding portion of the pile yarn is inclined in the weft direction of the ground structure. The pile piece can be sufficiently inclined in the weaving width direction only by weaving the base fabric 4 and weaving the pile yarn 5 without separately performing a form stabilizing process so as to be maintained in a state.
In Modification 1 and Examples 1 and 2, one weft 3 through which each thick warp 2a passes below is the rearmost weft 3b.
Other configurations, operational effects, and usage modes of the rubbing material 1 are the same as those in the above-described embodiment.

<Modification 2>
FIG. 4 shows a rubbing material 1 according to Modification 2 of the embodiment of the present invention.
In the second modification, each thick warp yarn 2a forms a twill weave structure that passes under one weft yarn 3 every time it passes over three weft yarns 3, and each pile yarn 5 has one weft yarn. 3 (under the foremost weft 3a), then passes over one weft 3 (in other words, the intermediate weft 3c) and then under one weft 3 (the backmost weft 3b) The point which comprises the substantially W type fast pile by the side cross sectional view is the same as that of embodiment (Example 1, 2) mentioned above.
However, in the second modification, the position of one weft 3 through which each thick warp yarn 2a passes is different from those in the first and second embodiments.

Specifically, in the second modification, one weft 3 through which each thick warp yarn 2a passes is not one of the frontmost weft yarn 3a, the middle weft yarn 3c, and the rearmost weft yarn 3b, and each pile yarn 5 is Or other wefts 3d that do not pass above.
Other configurations, operational effects, and usage modes of the rubbing material 1 are the same as those in the above-described embodiment.

<Modification 3>
FIG. 5 shows a rubbing material 1 according to Modification 3 of the embodiment of the present invention.
Modified Example 3 The most different from the above-described embodiments (Examples 1 and 2) and Modified Examples 1 and 2 is that each pile yarn 5 is woven into one weft 3.
That is, each pile 5 in the modified example 3 passes under only one weft 3, and both the front pile piece 5 a and the rear pile piece 5 b protrude from the base fabric 4 after passing under the same weft 3. (It can also be said that the frontmost weft 3a and the rearmost weft 3b coincide).

In this case, it can be said that each pile yarn 5 woven into the base fabric 4 constitutes a loose pile.
The structure of the other rubbing material 1, an effect, and a usage aspect are the same as that of embodiment mentioned above and the modifications 1,2.

<Others>
The present invention is not limited to the embodiment described above. Each configuration of the rubbing material 1 or the like, or the overall structure, shape, dimensions, and the like can be appropriately changed in accordance with the spirit of the present invention.
Each pile yarn 5 passes under the foremost weft 3a with respect to the five wefts 3 moving back and forth in the weaving direction, and thereafter passes 1 on each weft 3 (intermediate weft 3c). It may pass over one weft 3 (intermediate weft 3c) and then pass under one weft 3 (the rearmost weft 3b).
In addition, each pile yarn 5 is the same for seven or more odd-numbered weft yarns 3 that move back and forth in the weaving direction.

DESCRIPTION OF SYMBOLS 1 Rubbing material 2 Warp 2a Thick warp 2b Fine warp 3 Weft 3a The frontmost weft 3b The backmost weft 4 Base fabric 5 Pile yarn 5a Front pile piece 5b Rear pile piece S Rayon fiber fineness R Rayon fiber ratio

Claims (5)

A rubbing material having a base fabric (4) woven with warps (2) and wefts (3) and a pile yarn (5) woven into the base fabric (4),
The pile yarn (5) is seen including a rayon fiber and cotton fiber,
The single fiber fineness of each of the rayon fiber and the cotton fiber contained in the pile yarn (5) is 5 denier or less,
The pile yarn (5) the total fineness as a whole, rubbing material, characterized in der Rukoto 600 denier or less than 30 denier. The rubbing material according to claim 1, wherein the pile yarn (5) is a twisted yarn obtained by twisting a rayon fiber yarn and a cotton fiber yarn. The pile yarn (5) includes only rayon fiber and cotton fiber,
The rubbing material according to claim 1 or 2, wherein the warp yarn (2) and the weft yarn (3) in the base fabric (4) do not contain rayon fiber and cotton fiber. The warp yarn (2) is a thick warp yarn (2a) and a thin warp yarn (2b) that is thinner than the thick warp yarn (2a), arranged in a line in the weaving width direction as a pair.
Wherein each thick warp (2a), with respect to the weft that are arranged in the weaving direction (3), passes under one weft in each pass over three weft (3) (3),
Each of the fine warps (2b) passes under one weft (3) each time it passes over one weft (3) with respect to the weft (3) arranged side by side in the weaving direction,
A plurality of the pile yarns (5) are arranged along the weaving direction between the thick warp yarns (2a) and the fine warp yarns (2b) in each set,
The pile yarn (5), respectively, to the three weft back and forth in the weaving direction (3), passes over one weft (3) each passes below one weft (3) Later, under one weft (3),
The pile yarn (5), respectively, said base fabric (4) pile pieces before projecting from after having passed under the frontmost weft in three weft (3) to the front and rear the (3a) and (5a), Forming a rear pile piece (5b) protruding from the base fabric (4) after passing under the rearmost weft (3b) of the three front and rear wefts (3);
Said fine warp (2b), respectively, any one of the claims 1-3, characterized in that passes over both of the weft of the frontmost weft (3a) and the rearmost of the weft (3b) The rubbing material according to item. The warp yarn (2) is a thick warp yarn (2a) and a thin warp yarn (2b) that is thinner than the thick warp yarn (2a) arranged in a line in the weaving width direction as a set of
Each of the thick warps (2a) passes under one weft (3) each time it passes over three wefts (3) with respect to the wefts (3) arranged side by side in the weaving direction,
Each of the fine warps (2b) passes under the three wefts (3) each time it passes over one weft (3) with respect to the wefts (3) arranged in the weaving direction,
A plurality of the pile yarns (5) are arranged along the weaving direction between the thick warp yarns (2a) and the fine warp yarns (2b) in each set,
Each pile yarn (5) passes over one weft (3) each time it passes under one weft (3) with respect to three wefts (3) moving back and forth in the weaving direction. Later, under one weft (3),
Each of the pile yarns (5) includes a front pile piece (5a) protruding from the base fabric (4) after passing under the frontmost weft (3a) of the three front and rear wefts (3). Forming a rear pile piece (5b) protruding from the base fabric (4) after passing under the rearmost weft (3b) of the three front and rear wefts (3);
Each of the fine warps (2b) passes over only the rearmost weft (3b) of the foremost weft (3a) and the rearmost weft (3b). The rubbing material according to any one of to 3.