INDUSTRIAL TWO-LAYER FABRIC

Abstract

The object of the present invention is to provide a fabric with a thinned thickness which exhibits excellent rigidity, good anti-extension property, good wear resistance, good hydration property and good surface smoothness property.

The present invention includes one upper surface side fabric constituted by warps on the surface side and upper surface side wefts, one lower surface side fabric constituted by lower surface side warps and lower surface side wefts, at least one warps on the surface side function as a warp binding yarn, two warps on the upper surface side are woven to form a pair on the upper surface side as the ribbed cord fabric, a ratio of the number of the warps on the upper surface side to that of the warps on the lower surface side is 2:1.

Claims

1. An industrial two-layer fabric with a complete structure of the present invention includes one upper surface side fabric constituted by warps on the surface side and upper surface side wefts, one lower surface side fabric constituted by lower surface side warps and lower surface side wefts, at least one warps on the surface side function as a warp binding yarn, two warps on the upper surface side are woven to form a pair on the upper surface side as the ribbed cord fabric, a ratio of the number of the warps on the upper surface side to that of the warps on the lower surface side is 2:1.

2. The industrial two-layer fabric according to claim 1, among one of the two warps on the upper surface side forming a pair, all the yarns is woven with each other as the ribbed cord fabric to be arranged in parallel, in a pair which do not include the warp binding yarn.

3. The industrial two-layer fabric according to claim 1, among one of the two warps on the upper surface side forming a pair, a part of the yarns is so woven as the ribbed cord fabric to be arranged in parallel, and one of the two warps is the warp binding yarn.

4. The industrial two-layer fabric according to claim 1, among one of the two warps on the upper surface side forming a pair, a part of the yarns is so woven with each other as the ribbed cord fabric to be arranged in parallel, in a pair each of which is the warp binding yarn.

5. The industrial two-layer fabric according to claim 3, in the pair of warps which form the warp biding yarn, 50% or more of the yarns are woven as the ribbed cord fabric to be arranged in parallel.

6. The industrial two-layer fabric according to claim 1, the diameter of the warps on the upper surface side are set to be the same, while, the diameter of the warps on the lower surface side are set to be the same, and the ratios of the diameter of the warp on the lower surface side to the one on the upper surface side is 150% to 300%.

7. The industrial two-layer fabric according to claim 1, the longitudinal density of the warps constituting the fabric on the upper surface side is 40% to 60%, while that on the lower surface side is 40% to 55%.

Description

BRIEF EXPLANATION OF DRAWINGS

[0045] FIG. 1 is a design view showing a complete structure of the first embodiment according to the present invention.

[0046] FIG. 2 is a design view showing a condition of the warps the first embodiment according to the present invention.

[0047] FIG. 3 is a design view showing a complete structure of the second embodiment according to the present invention.

[0048] FIG. 4 is a design view showing a condition of the warps the second embodiment according to the present invention.

[0049] FIG. 5 is a design view showing a complete structure of the third embodiment according to the present invention.

[0050] FIG. 6 is a design view showing a condition of the warps the third embodiment according to the present invention.

[0051] FIG. 7 is a design view showing a complete structure of the fourth embodiment according to the present invention.

[0052] FIG. 8 is a design view showing a condition of the warps the fourth embodiment according to the present invention.

[0053] FIG. 9 is a design view showing a complete structure of the fifth embodiment according to the present invention.

[0054] FIG. 10 is a design view showing a condition of the warps the fifth embodiment according to the present invention.

[0055] FIG. 11 is a design view showing a complete structure of the sixth embodiment according to the present invention.

[0056] FIG. 12 is a design view showing a complete structure of the seventh embodiment according to the present invention.

DETAILED DESCRIPTION OF THE INVENTION

[0057] Now, the structure and the effect of the two-layer fabric of the present invention will be described below. Embodiments of the two-layer fabric of the present invention will be described thereafter with reference to the drawings.

[0058] The industrial two-layer fabric with a complete structure of the present invention includes at least one upper surface side fabric constituted by warps on the surface side and upper surface side wefts, at least one lower surface side fabric constituted by lower surface side warps and lower surface side wefts, at least one or more warps on the surface side function as a warp binding yarn, two warps on the upper surface side are woven with each other to form a pair on the upper surface side as the ribbed cord fabric, a ratio of the warp on the upper surface side to the warps on the lower surface side is 2:1.

[0059] No particular limitation is imposed on a yarn to be used in the present invention and it can be selected freely depending on the properties which an industrial fabric is desired to have. Examples of it include, in addition to monofilaments, multifilaments, spun yarns, finished yarns subjected to crimping or bulking such as so-called textured yarn, bulky yarn and stretch yarn, and yarns obtained by intertwining them. As the cross-section of the yarn, not only circular form but also square or short form such as stellar form, or elliptical or hollow form can be used. The material of the yarn can be selected freely and usable examples of it include polyester, polyamide, polyphenylene sulfide, polyvinylidene fluoride, polypropylene, aramid, polyether ketone, polyethylene naphthalate, polytetrafluoroethylene, cotton, wool and metal. Of course, yarns obtained using copolymers or incorporating or mixing the above-described material with a substance selected depending on the intended purpose may be used.

[0060] As the warps on the surface side, lower surface side warps, and upper surface side wefts, use of a polyester monofilament having rigidity and excellent dimensional stability is usually preferred. When lower surface side wefts which need wear resistance are obtained by interweaving of polyester monofilaments and polyamide monofilaments while arranging them alternately, they are able to have wear resistance without losing rigidity.

[0061] It is also possible to place a plurality of yarns with the same design at a position where one yarn is normally placed from the standpoint of design. Design of a plurality of yarns having a thin diameter brings about improvement in surface property and thinning of the fabric.

[0062] Among one of the two warps on the upper surface side forming a pair, all the yarns may be so woven with each other as the ribbed cord fabric to be arranged in parallel, in a pair which do not include the warp binding yarn.

[0063] Among one of the two warps on the upper surface side forming a pair, a part of the yarns may be so woven with each other as the ribbed cord fabric to be arranged in parallel, in a pair which do not include the warp binding yarn.

[0064] Among one of the two warps on the upper surface side forming a pair, a part of the yarns may be so woven with each other as the ribbed cord fabric to be arranged in parallel, in a pair each of which is the warp binding yarn.

[0065] In the pair of warps which form the warp biding yarn, 50% or more of the yarns may be woven with each other as the ribbed cord fabric to be arranged in parallel.

[0066] Since the surface structure can be formed lime flat yarns by adopting such a structure, the thickness of the two-layered fabric can be restricted.

[0067] In addition, since the size of the mesh can be adjusted so as to be made small without the thickness being enhanced, the hydration property different from the conventional hydration property can be obtained.

[0068] Still further, the tension force caused by the knuckle in the wefts woven with two warps, the density of the lateral yarns can be enhanced.

[0069] Still more further, in the present invention, since the fabric structure can be constituted by two warps and includes a biding structure, in the binding yarns, the one of the pair of the binding constitutes a fabric structure, and a binding structure as well, while, the other of the pair on the surface side can minimize the collapse of the fabric structure of the binding portion.

[0070] Still more further, the diameter of the warps on the upper surface side may be set to be the same, while, the diameter of the warps on the lower surface side are set to be the same, and the ratios of the diameter of the warp on the lower surface side to the one on the upper surface side may be 150% to 300%.

[0071] By adopting such a structure, since the binding of the two layers can be effected by one of the yarns of the ribbed cord fabric with comparatively thin two warps, the diameter of the binding yarn running up and down inside the fabric can be made smaller than that of the warp constituting the normal warp binding yarn.

[0072] Therefore, the generation of the unevenness of the hydration can be minimized. In addition, the thickness of the net has been conventionally controlled by reducing the diameter of the yarn constituting the fabric, and, in case of the two-layered fabric with the diameter of the upper and the lower yarns different from each other.

[0073] The space of the warps on the front surface side is larger than that on the underside surface, so that the compatibility between the restriction of the hydration and the restriction of the thickness of the net was technically difficult.

[0074] In the present invention, by adopting yarns with a small diameter, the hydration speed can be adjusted with the thickness of the net being maintained.

[0075] The longitudinal density of the warps constituting the fabric on the upper surface side is 40% to 60%, while that on the lower surface side is 40% to 55%. The longitudinal density means the ratio of occupying the space of the warps constituting the fabric.

[0076] In this connection the diameter of the warp on the warp structure on the upper surface side constituting a pair may be set smaller than the diameter of the warp of the warp structure on the upper surface side constituting a single yarn. By making the diameter of the pair, the force exerted on the weft when a knuckle is formed can be almost the same as the force in case of one single yarn, so that the surface smoothness, the fiber supportability, etc. can be improved. In addition, since the diameter of the yarn can be adjusted by selecting the one along with its material, the diameter and the material of the yarn can be appropriately selected.

[0077] Still further, in the present invention, the on-stack structure may be adopted. The high hydration property can be obtained by such an on-stack structure, while, the hydration speed can also be controlled, since the surface structure is constituted by the ribbed cord fabric, so that the mech can be suitably closed by the two yarns so as to restrict the excessive difference between the space of the front surface and the space of the underside surface.

[0078] Now, the embodiments of the present invention will be described below with reference to the drawings. Each of FIGS. 1 to 12 is a design view showing a complete structure of an embodiment of the present invention. Here, the design view corresponds to the complete structure of the fabric defining the minimum unit to be repeated of the fabric structure. The fabric recited in the claims corresponds to this complete structure. The final product is completed by combining any number of such complete structures in the longitudinal direction and the direction perpendicular to the longitudinal direction.

[0079] In each of the design views, the warp is indicated by a reference number such as 1, 2, 3 . . . . The upper and lower warps are indicated by the reference number to which U and D are attached, respectively.

[0080] The weft is indicated by a reference number such as 1, 2, 3. The upper surface side weft and the lower surface side weft are indicated by the reference number to which u and d are attached, respectively, such as 1u, 2d, etc. In addition, the binding weft yarn and the auxiliary weft are indicated by the reference number to which b and f are attached, respectively, such as 1u, 1d, 2b, 2f, etc.

[0081] In each of the design views, a symbol x indicates that the upper surface side warp is arranged above the upper surface side weft or the auxiliary weft, a solid triangle symbol indicates that the binding yarn is arranged below the lower surface side weft, and a symbol indicates that the lower surface side warp is arranged below the lower surface side weft.

[0082] The warps and the wefts on the upper surface side are arranged to be overlapped with the warps and the wefts on the lower surface side, respectively. In this connection, in the design view, the warps and the wefts on the upper surface side are depicted to be precisely arranged over the warps and the wefts on the upper surface side, because of the clarity of the drawing. In the real fabric, it does not matter if they are arranged to be offset.

First Embodiment

[0083] FIG. 1 is a design view showing an industrial two-layer fabric according to the first embodiment. One of the warps on the upper surface side forming a pair in the first embodiment is the warp binding yarn. A part of the yarns are arranged to be in parallel so as to form a cord rib in the pairs of the warps on the upper surface side. The ratio of the wefts on the upper surface side to the wefts on the lower surface side is 3:2.

[0084] In addition, in the pairs of the warps on the upper surface side one of which is the warp binding yarn, 50% of the knuckles are arranged to be in parallel on the surface.

[0085] More specifically, as shown in FIG. 2, the warps on the upper surface side 1U and 2Ub, 3U and 4Ub, 5U and 6Ub, 7U and 8Ub, 9U and 10Ub, 11U and 12Ub, 13U and 14Ub, and 15U and 16Ub form a pair to constitute a structure of the fabric on the upper surface side. The warp 1U on the upper surface side forms a plain fabric of 1/1. The binding warp 2Ub forming a pair with the warp 1U passes above the weft 1U on the upper surface side, below the weft 2U on the upper surface side, above the weft 3U on the upper surface side, below the weft 8U on the lower surface side, and above the weft 11U on the upper surface side.

[0086] The warp 3U on the upper surface side forms a plain fabric of 2/2. The binding warp 4Ub forming a pair with the warp 3U passes below the weft 1L on the lower surface side, above the wefts 5U, 6U on the upper surface side, below the wefts 7U, 8U on the upper surface side, above the wefts 9U,10U on the upper surface side, and below the wefts 11U,12U on the upper surface side.

[0087] The warp 5U on the upper surface side forms a plain fabric of 1/1. The binding warp 6Ub forming a pair with the warp 5U passes below the weft 1U on the upper surface side, below the weft 5L on the lower surface side, and above the wefts 8U,10U,12U on the upper surface side.

[0088] The warp 7U on the upper surface side forms a plain fabric of 2/2. The binding warp 8Ub forming a pair with the warp 7U passes below the wefts 1U, 2U on the upper surface side, above the wefts 3U,4U on the upper surface side, below the wefts 5U, 6U on the upper surface side, above the weft 7U on the upper surface side, below the weft 10L on the lower surface side, and above the weft 12U on the upper surface side.

[0089] In addition, the warp 9U on the upper surface side forms a plain fabric of 1/1. The binding warp 10Ub forming a pair with the warp 9U passes below the weft 1U on the upper surface side, below the weft 2L on the lower surface side, and above the weft 5U, 7U, 9U, 11U on the upper surface side.

[0090] The warp 11U on the upper surface side forms a plain fabric of 2/2. The binding warp 12Ub forming a pair with the warp 11U passes above the wefts 1U, 2U on the upper surface side, below the weft 3U, 4U on the upper surface side, above the weft 5U on the upper surface side, below the weft 7L on the lower surface side, and above the weft 10U on the upper surface side.

[0091] The warp 13U on the upper surface side forms a plain fabric of 1/1. The binding warp 14Ub forming a pair with the warp 13U passes above the wefts 2U, 4U,6U,8U on the upper surface side, below the weft 11L on the lower surface side, and above the wefts 8U,10U,12U on the upper surface side.

[0092] The warp 15U on the upper surface side forms a plain fabric of 2/2. The binding warp 16Ub forming a pair with the warp 15U passes below the wefts 1U,2U,3U on the upper surface side, below the weft 4L on the lower surface side, above the wefts 7U,8U on the upper surface side, below the wefts 9U,10U on the lower surface side, and above the wefts 11U, 12U on the upper surface side.

[0093] In the first embodiment, by adopting the ribbed cord fabric as a part of the surface of the fabric on the upper surface side, a fabric with a thinned thickness which exhibits excellent rigidity, good anti-extension property, good wear resistance, good hydration property and good surface smoothness property, like a fabric forming a surface structure by flat yarns can be provided.

[0094] In addition, by adopting the fabric structure of the first embodiment, since the size of the mesh can be reduced without the thickness of the fabric being enhanced, the hydration property can be adjusted by a selection of the diameter of the yarns.

[0095] Still further, by two ribbed cord portion, since stress on the lateral yarns by which knuckles are retracted can be alleviated, the density of the lateral yarns can be largely improved.

Second Embodiment

[0096] FIG. 3 is a design view showing an industrial two-layer fabric according to the second embodiment. One of the warps on the upper surface side forming a pair in the first embodiment is the warp binding yarn. A part of the yarns are arranged to be in parallel so as to form a cord rib in the pairs of the warps on the upper surface side. The ratio of the wefts on the upper surface side to the wefts on the lower surface side is 3:2.

[0097] In addition, in the pairs of the warps on the upper surface side one of which is the warp binding yarn, 50% of the knuckles are arranged to be in parallel on the surface.

[0098] More specifically, as shown in FIG. 4, the warps on the upper surface side 1U and 2Ub, 3U and 4Ub, 5U and 6Ub, 7U and 8Ub, 9U and 10Ub, 11U and 12Ub, 13U and 14Ub, and 15U and 16Ub form a pair to constitute a structure of the fabric on the upper surface side. The warp 1U on the upper surface side forms a plain fabric of . The binding warp 2Ub forming a pair with the warp 1U passes above the wefts 1U,5U on the upper surface side, and below the weft 8L on the lower surface side. The warp 3U on the upper surface side forms a plain fabric of . The binding warp 4Ub forming a pair with the warp 3U passes below the weft 1L on the lower surface side, and above the wefts 6U, 10U on the upper surface side. The warp 5U on the upper surface side forms a plain fabric of . The binding warp 6Ub forming a pair with the warp 5U passes below the weft 5L on the lower surface side, and below the wefts 8L, 12L on the lower surface side. The warp 7U on the upper surface side forms a plain fabric of . The binding warp 8Ub forming a pair with the warp 7U passes above the wefts 3U, 7U on the upper surface side, and below the weft 10L on the lower surface side.

[0099] In addition, the warp 9U on the upper surface side forms a plain fabric of . The binding warp 10Ub forming a pair with the warp 9U passes below the weft 2L on the lower surface side, and above the wefts 5U, 9U on the upper surface side. The warp 11U on the upper surface side forms a plain fabric of . The binding warp 12Ub forming a pair with the warp 11U passes above the weft 2U on the upper surface side, below the weft 7L on the lower surface side, and above the weft 10U on the upper surface side. The warp 13U on the upper surface side forms a plain fabric of . The binding warp 14Ub forming a pair with the warp 13U passes above the wefts 4U,8U on the upper surface side, and below the weft 11L on the lower surface side. The warp 15U on the upper surface side forms a plain fabric of . The binding warp 16Ub forming a pair with the warp 15U passes below the weft 4L on the lower surface side, and above the wefts 7U, 11U on the upper surface side.

[0100] In the second embodiment, by adopting the ribbed cord fabric as a part of the surface of the fabric on the upper surface side, a fabric with a thinned thickness which exhibits excellent rigidity, good anti-extension property, good wear resistance, good hydration property and good surface smoothness property, like a fabric forming a surface structure by flat yarns can be provided.

[0101] In addition, by adopting the fabric structure of the second embodiment, since the size of the mesh can be reduced without the thickness of the fabric being enhanced, the hydration property can be adjusted by a selection of the diameter of the yarns.

[0102] Still further, by two ribbed cord portions, since stress on the lateral yarns by which knuckles are retracted can be alleviated, the density of the lateral yarns can be largely improved.

Third Embodiment

[0103] FIG. 5 is a design view showing an industrial two-layer fabric according to the third embodiment. One of the warps on the upper surface side forming a pair in the first embodiment is the warp binding yarn. A part of the yarns are arranged to be in parallel so as to form a cord rib in the pairs of the warps on the upper surface side. The ratio of the wefts on the upper surface side to the wefts on the lower surface side is 3:2.

[0104] More specifically, as shown in FIG. 6, the warps on the upper surface side 1U and 2Ub, 3U and 4Ub, 5U and 6Ub, 7U and 8Ub, 9U and 10Ub, 11U and 12Ub, 13U and 14Ub, and 15U and 16Ub form a pair to constitute a structure of the fabric on the upper surface side. The warp 1U on the upper surface side forms a plain fabric of 1/1. The binding warp 2Ub forming a pair with the warp 1U passes above the wefts 1U,3U on the upper surface side, below the weft 2L on the lower surface side, above the weft 11U on the upper surface side.

[0105] The warp 3U on the upper surface side forms a plain fabric of 1/1. The binding warp 4Ub forming a pair with the warp 3U passes below the weft 1L on the lower surface side, and above the wefts 4U, 6U, 8U, 10U on the upper surface side.

[0106] The warp 5U on the upper surface side forms a plain fabric of 1/1. The binding warp 6Ub forming a pair with the warp 5U passes above the weft 1U on the upper surface side, below the weft 5L on the lower surface side, and above the wefts 9U,11U on the upper surface side.

[0107] The warp 7U on the upper surface side forms a plain fabric of 1/1. The binding warp 8Ub forming a pair with the warp 7U passes above the wefts 2U, 4U,6U on the upper surface side, and below the weft 10L on the lower surface side.

[0108] In addition, the warp 9U on the upper surface side forms a plain fabric of 1/1. The binding warp 10Ub forming a pair with the warp 9U passes below the weft 2L on the lower surface side, and above the weft 2U, 5U, 7U,9U,11U on the upper surface side.

[0109] The warp 11U on the upper surface side forms a plain fabric of 1/1. The binding warp 12Ub forming a pair with the warp 11U passes above the wefts 2U, 4U on the upper surface side, below the weft 7L on the lower surface side, and above the wefts 10U, 12U on the upper surface side.

[0110] The warp 13U on the upper surface side forms a plain fabric of 1/1. The binding warp 14Ub forming a pair with the warp 13U passes above the wefts 3U, 5U,7U on the upper surface side, and below the weft 11L on the lower surface side.

[0111] The warp 15U on the upper surface side forms a plain fabric of 1/1. The binding warp 16Ub forming a pair with the warp 15U passes below the weft 4L on the lower surface side, above the weft 8U,10U,12U on the lower surface side, above the wefts 7U,8U on the upper surface side, and below the wefts 9U,10U on the upper surface side.

[0112] In the third embodiment, by adopting the ribbed cord fabric as a part of the surface of the fabric on the upper surface side, a fabric with a thinned thickness which exhibits excellent rigidity, good anti-extension property, good wear resistance, good hydration property and good surface smoothness property, like a fabric forming a surface structure by flat yarns can be provided.

[0113] In addition, by adopting the fabric structure of the third embodiment, since the size of the mesh can be reduced without the thickness of the fabric being enhanced, the hydration property can be adjusted by a selection of the diameter of the yarns.

[0114] Still further, by two ribbed cord portions, since stress on the lateral yarns by which knuckles are retracted can be alleviated, the density of the lateral yarns can be largely improved.

Fourth Embodiment

[0115] FIG. 7 is a design view showing an industrial two-layer fabric according to the fourth embodiment. One of the warps on the upper surface side forming a pair in the fourth embodiment is the warp binding yarn. A part of the yarns are arranged to be in parallel so as to form a cord rib in the pairs of the warps on the upper surface side. The ratio of the wefts on the upper surface side to the wefts on the lower surface side is 4:3.

[0116] More specifically, as shown in FIG. 8, the warps on the upper surface side 1U and 2Ub, 3U and 4Ub, 5U and 6Ub, 7U and 8Ub, 9U and 10Ub, 11U and 12Ub form a pair to constitute a structure of the fabric on the upper surface side.

[0117] The warp 1U on the upper surface side forms a plain fabric of 1/1. The binding warp 2Ub forming a pair with the warp 1U passes below the weft 1L on the lower surface side, and above the wefts 5U,7U on the upper surface side.

[0118] The warp 3U on the upper surface side forms a plain fabric of 1/1. The binding warp 4Ub forming a pair with the warp 3U passes below the weft 2L on the lower surface side, and above the wefts 4U, 6U on the upper surface side.

[0119] The warp 5U on the upper surface side forms a plain fabric of 1/1. The binding warp 6Ub forming a pair with the warp 5U passes above the weft 1U on the upper surface side, below the weft 3L on the lower surface side, and above the weft 7U on the upper surface side.

[0120] The warp 7U on the upper surface side forms a plain fabric of 1/1. The binding warp 8Ub forming a pair with the warp 7U passes above the weft 2U on the upper surface side, below the weft 5L on the lower surface side, and above the weft 8U on the upper surface side.

[0121] In addition, the warp 9U on the upper surface side forms a plain fabric of 1/1. The binding warp 10Ub forming a pair with the warp 9U passes above the wefts 1U, 3U on the upper surface side, and below the weft 6L on the lower surface side.

[0122] The warp 11U on the upper surface side forms a plain fabric of 1/1. The binding warp 12Ub forming a pair with the warp 11U passes above the wefts 2U, 4U on the upper surface side, and below the weft 7L on the lower surface side.

[0123] In the fourth embodiment, by adopting the ribbed cord fabric as a part of the surface of the fabric on the upper surface side, a fabric with a thinned thickness which exhibits excellent rigidity, good anti-extension property, good wear resistance, good hydration property and good surface smoothness property, like a fabric forming a surface structure by flat yarns can be provided.

[0124] In addition, by adopting the fabric structure of the fourth embodiment, since the size of the mesh can be reduced without the thickness of the fabric being enhanced, the hydration property can be adjusted by a selection of the diameter of the yarns.

[0125] Still further, by two ribbed cord portions, since stress on the lateral yarns by which knuckles are retracted can be alleviated, the density of the lateral yarns can be largely improved.

Fifth Embodiment

[0126] FIG. 9 is a design view showing an industrial two-layer fabric according to the fifth embodiment. One of the warps on the upper surface side forming a pair in the fifth embodiment is the warp binding yarn. A part of the yarns is arranged to be in parallel so as to form a cord rib in the pairs of the warps on the upper surface side. The ratio of the wefts on the upper surface side to the wefts on the lower surface side is 3:2.

[0127] In addition, in the pairs of the warps on the upper surface side one of which is the warp binding yarn, 50% of the knuckles are arranged to be in parallel on the surface.

[0128] More specifically, as shown in FIG. 10, the warps on the upper surface side 1U and 2Ub, 3U and 4Ub, 5U and 6Ub, 7U and 8Ub, 9U and 10Ub, 11U and 12Ub form a pair to constitute a structure of the fabric on the upper surface side.

[0129] The warp 1U on the upper surface side forms a plain fabric of . The binding warp 2Ub forming a pair with the warp 1U passes above the weft 1U, 4U on the upper surface side, and below the weft 8L on the lower surface side.

[0130] The warp 3U on the upper surface side forms a plain fabric of 1/1. The binding warp 4Ub forming a pair with the warp 3U passes above the wefts 2U, 5U on the upper surface side, and below the weft 7L on the lower surface side.

[0131] The warp 5U on the upper surface side forms a plain fabric of . The binding warp 6Ub forming a pair with the warp 5U passes above the weft 3U on the upper surface side, below the weft 5L on the lower surface side, and above the weft 9U on the upper surface side.

[0132] The warp 7U on the upper surface side forms a plain fabric of . The binding warp 8Ub forming a pair with the warp 7U passes above the weft 1U on the upper surface side, below the weft 4L on the lower surface side, and above the weft 7U on the upper surface side.

[0133] In addition, the warp 9U on the upper surface side forms a plain fabric of . The binding warp 10Ub forming a pair with the warp 9U passes below the weft 2L on the lower surface side, and above the wefts 5U, 8U on the upper surface side.

[0134] The warp 11U on the upper surface side forms a plain fabric of . The binding warp 12Ub forming a pair with the warp 11U passes below the weft 1L on the lower surface side, and above the wefts 3U, 6U on the upper surface side.

[0135] In the fifth embodiment, by adopting the ribbed cord fabric as a part of the surface of the fabric on the upper surface side, a fabric with a thinned thickness which exhibits excellent rigidity, good anti-extension property, good wear resistance, good hydration property and good surface smoothness property, like a fabric forming a surface structure by flat yarns can be provided.

[0136] In addition, by adopting the fabric structure of the fifth embodiment, since the size of the mesh can be reduced without the thickness of the fabric being enhanced, the hydration property can be adjusted by a selection of the diameter of the yarns.

[0137] Still further, by two ribbed cord portion, since stress on the lateral yarns by which knuckles are retracted can be alleviated, the density of the lateral yarns can be largely improved.

Sixth Embodiment

[0138] FIG. 11 is a design view showing an industrial two-layer fabric according to the sixth embodiment. One of the warps on the upper surface side forming a pair in the sixth embodiment is the warp binding yarn. A part of the yarns are arranged to be in parallel so as to form a cord rib in the pairs of the warps on the upper surface side. The ratio of the wefts on the upper surface side to the wefts on the lower surface side is 3:2.

[0139] More specifically, as shown in FIG. 11, the warps on the upper surface side 1U and 2Ub, 3U and 4Ub, 5U and 6Ub, 7U and 8Ub, 9U and 10Ub, 11U and 12Ub, 13U and 14Ub, and 15U and 16Ub form a pair.

[0140] In the sixth embodiment, by adopting the ribbed cord fabric as a part of the surface of the fabric on the upper surface side, a fabric with a thinned thickness which exhibits excellent rigidity, good anti-extension property, good wear resistance, good hydration property and good surface smoothness property, like a fabric forming a surface structure by flat yarns can be provided.

[0141] In addition, by adopting the fabric structure of the sixth embodiment, since the size of the mesh can be reduced without the thickness of the fabric being enhanced, the hydration property can be adjusted by a selection of the diameter of the yarns.

[0142] Still further, by two ribbed cord portion, since stress on the lateral yarns by which knuckles are retracted can be alleviated, the density of the lateral yarns can be largely improved.

Seventh Embodiment

[0143] FIG. 12 is a design view showing an industrial two-layer fabric according to the seventh embodiment. One of the warps on the upper surface side forming a pair in the seventh embodiment is the warp binding yarn. A part of the yarns is arranged to be in parallel so as to form a cord rib in the pairs of the warps on the upper surface side. The ratio of the wefts on the upper surface side to the wefts on the lower surface side is 3:2.

[0144] More specifically, as shown in FIG. 12, the warps on the upper surface side 1Ub and 2Ub, 3U and 4Ub, 5Ub and 6Ub, 7U and 8U, 9Ub and 10Ub, 11U and 12U form a pair to constitute a structure of the fabric on the upper surface side. The warp 1Ub on the upper surface side passes above the weft 1U, 3U, 5U, 7U on the upper surface side, below the weft 10L on the lower surface side, and above the wefts 13U,15U,17U on the upper surface side. The binding warp 2Ub forming a pair with the warp 1Ub passes above the weft 5U, 7U, 9U, 11U, 13U, 15U on the upper surface side, and below the weft 1L on the lower surface side. Adjacent warp winding yarns 1Ub and 2Ub are constituted by the ribbed cord fabric at a portion of the knuckles (5U, 7U and 13U, 15U) emerging on the front surface side so as to be arranged in parallel. In addition, adjacent warp winding yarns 1Ub and 2Ub are replaced at the portion in parallel by the ribbed cord fabric. Still further, in the pair of warps 3U, 4U, all the yarns are woven as the ribbed cord fabric so as to be arranged in parallel, the warp 3L on the lower surface side passes below the wefts 2L,11L on the lower surface side.

[0145] The warp 5Ub on the upper surface side passes above the weft 7U, 9U,11U, 13U,15U, 17U on the upper surface side, below the weft 4L on the lower surface side. The binding warp 6Ub forming a pair with the warp 5Ub passes above the weft 17U, 1U, 3U, 5U, 7U, 9U on the upper surface side, and below the weft 13L on the lower surface side. Adjacent warp winding yarns 5Ub and 6Ub are constituted by the ribbed cord fabric at a portion of the knuckles (7U, 9U and 17U, 1U) emerging on the front surface side so as to be arranged in parallel. In addition, adjacent warp winding yarns 5Ub and 6Ub are replaced at the portion in parallel by the ribbed cord fabric.

[0146] Still further, in the pair of warps 7U, 8U, all the yarns are woven as the ribbed cord fabric so as to be arranged in parallel, the warp 7L on the lower surface side passes below the wefts 5L,14L on the lower surface side.

[0147] The warp 9Ub on the upper surface side passes above the weft 1U, 3U, 5U, 7U, 9U,11U, 13U on the upper surface side, and below the weft 16L on the lower surface side. The binding warp 10Ub forming a pair with the warp 9Ub passes above the weft 11U, 13U, 15U, 17U, 1U, 3U on the upper surface side, and below the weft 7L on the lower surface side. Adjacent warp winding yarns 9Ub and 10Ub are constituted by the ribbed cord fabric at a portion of the knuckles (1U, 3U and 11U, 13U) emerging on the front surface side so as to be arranged in parallel. In addition, adjacent warp winding yarns 9Ub and 10Ub are replaced at the portion in parallel by the ribbed cord fabric.

[0148] Still further, in the pair of warps 11U, 12U, all the yarns are woven as the ribbed cord fabric so as to be arranged in parallel, the warp 11L on the lower surface side passes below the wefts 8L,17L on the lower surface side.

[0149] In the seventh embodiment, by adopting the ribbed cord fabric as a part of the surface of the fabric on the upper surface side, a fabric with a thinned thickness which exhibits excellent rigidity, good anti-extension property, good wear resistance, good hydration property and good surface smoothness property, like a fabric forming a surface structure by flat yarns can be provided.

[0150] In addition, by adopting the fabric structure of the seventh embodiment, since the size of the mesh can be reduced without the thickness of the fabric being enhanced, the hydration property can be adjusted by a selection of the diameter of the yarns.

[0151] Still further, by two ribbed cord portion, since stress on the lateral yarns by which knuckles are retracted can be alleviated, the density of the lateral yarns can be largely improved.

EXPLANATION OF SYMBOLS

[0152] 116 warp [0153] 118 weft