JP2006336146A - Three-dimensional woven fabric - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a flexible three-dimensional woven fabric for a curtain through which the outdoors can be seen and which has shading functions resembled to a conventional blind. <P>SOLUTION: The three-dimensional woven fabric is constituted by forming a flat woven fabric by repeating shading units constituted by combining slender belt-shaped slats in which weft yarns are interwoven closely, with slender belt-shaped spaces in which no weft yarn is present on the ground warp yarns arranged at an interval enabling the see-through so that many units may be continued, folding the woven fabric in a zigzag shape by using axial weft yarns positioned at the border lines between the slats and the spaces of the flat woven fabric as the borders to form a basic woven fabric, and entwining columnar warp yarns with the axial weft yarns at each of the front and back sides so that the neighboring axial weft yarns may mutually and directly be linked to maintain the shape of the basic woven fabric. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to an improvement of a fabric used for a curtain or the like suspended inside a glass window for the purpose of sunshading or blindfolding.

Blinds that suspend slender strip-like slats up and down at a predetermined interval to prevent sun shine from direct sunlight and peeping from outside, and relatively open eyes called races A method of softening direct light with a thin curtain is widely used. However, conventional blinds combined with slats tend to be unsuitable for windows in residential rooms such as Japanese rooms even though they are suitable for office windows such as building windows because of their strong mechanical atmosphere. In addition, if the texture of the curtain is rough so that the outside can be seen through, there is a disadvantage that the performance of blindfolding and awning is lowered, and it is generally used in combination with a thick curtain or a curtain exclusively for shading. The following methods have been proposed as fabrics for curtains that have functions of blindfolding and awning and can be seen through.
JP 2001-295154 A However, these methods are a method in which warp yarns and weft yarns are stacked several times, and it is difficult to ensure transparency because of a flat woven fabric, and the weaving method is complicated and the manufacturing is complicated. Conceivable. In terms of structure, as shown in FIG. 7, a method of weaving warp yarns against weft yarns in opposite directions can be considered, but production is extremely difficult and impractical.

  In view of the above-mentioned reason, the present invention is to realize a three-dimensional woven fabric having a light shielding performance like a blind and aiming at a flexible light shielding like a curtain by a combination of existing weaving methods.

  The three-dimensional fabric of the present invention is a basic fabric formed by zigzagging a flat fabric in which slats woven with warps and wefts are arranged innumerably at predetermined intervals, and axial wefts positioned at both ends of the slats are formed as columnar warps. The problem is solved by entangled with a twine weave and directly connected.

  As with conventional blinds, light can be shielded over a wide range, and the whole can be formed as an integral woven fabric. Therefore, the same flexibility as conventional curtains can be secured, and a soft indoor atmosphere can be produced. In addition, since the fabric is a combination of a widely used plain weave and leno weave, there is an advantage that it is easy to manufacture.

  A flat woven fabric with an infinite number of light-shielding units composed of long strip-shaped slats in which wefts are closely woven together with long and narrow strip-shaped gaps with only weft warp and no weft arranged at transparent intervals. The base fabric is formed in a zigzag manner with the shaft weft located at the boundary between the slat and the gap of each light shielding unit as a boundary, and the front side and the rear side are adjacent to each other in order to maintain the shape of the basic fabric. A columnar warp is entangled with an axial weft so as to directly connect axial wefts to form a three-dimensional fabric. To use it as a curtain or blind, a hanging tool is attached to a columnar warp and a three-dimensional fabric is suspended from the inside of a window. In order to adjust the range and degree of sunshade and blindfolding, it is possible to easily change the inclination of the slats by adjusting the fishing gear suspension.

  The present invention will be described with reference to the drawings. Reference numeral 2 denotes a light-shielding unit composed of a slat 5 woven with ground warp yarn 3 and weft yarn 4 and a gap 6 with only ground warp yarn 3 and no weft yarn 4. The weft 4 is closely woven with a plain weave or the like for light shielding, and the ground warp 3 is woven into the weft 4 as a pair of warp 3a and warp 3b. Reference numeral 7 is a basic fabric formed by folding a flat woven fabric in which the light-shielding unit 2 is connected innumerably with ground warp yarns 3 in a zigzag manner with the axial weft yarn 4 a located at the boundary between the slat 5 and the gap 6 as a boundary. Reference numeral 8 denotes a columnar warp entangled with the shaft weft 4a so as to directly connect adjacent shaft wefts to each other on the front side and the rear side of the basic fabric 7 in order to maintain the shape of the basic fabric 7. It is. FIG. 3 is a plan view of the relationship between a pair of ground warp yarns 3 and weft yarns 4.

  Further, the columnar warp 8 is composed of three warps 8a, 8b, 8c, and is entangled only by the shaft weft 4a located at both ends of the slat 5 by entanglement. FIG. 4 shows the entangled state of the columnar warp 8 and the shaft weft 4a. A plain weave is suitable for the slats so as to bring the weft 4 into close contact, but it is desirable that the shaft weft 4a and the ground warp 3 are levitated so as not to loosen. Further, the ground warp 3 and the columnar warp 8 are arranged so that they can be seen through the woven fabric from the gap 6 with an appropriate interval.

  The three-dimensional woven fabric 1 of the present invention is a method of fixing the shaft weft 4a with the columnar warp 8 by entanglement on the front side and the rear side of the basic woven fabric 7, so there is no loss of shape of the basic woven fabric 7 folded zigzag, It can be woven in order.

  When the columnar warp 8 and the shaft weft 4a are woven in a plain weave, the shaft weft 4a and other wefts 4 are displaced in the gap 6 and the shape of the slats 5 is lost, and the gap 6 is reduced. Since it becomes impossible to fix and the shape as a three-dimensional fabric cannot be maintained, it is essential that at least the columnar warp 8 and the shaft weft 4a are woven together so as not to loosen. If all the wefts 4 are entangled, a three-dimensional woven fabric with less deformation can be obtained. However, since the eyes of the slats 5 become rough, the light shielding performance is somewhat lowered.

  In order to facilitate understanding, the columnar warp 8 has been described as a triple weave of 8a, 8b, 8c as a method for firmly fixing the columnar warp 8 and the shaft weft 4a. Even if we entangle weaves with two pairs of 8b, the basic action does not change. Furthermore, as a simple method, the three-dimensional woven fabric 1 can be formed by forming a three-dimensional woven fabric 1 by combining the warps 3a and 3b of the ground warp 3 by reducing the number of the column warps 8 to only the columnar warp 8a. The basic composition of the fabric remains unchanged.

  In order to enhance the effect of light shielding and blinding as a blind, it is desirable to set the width of the gap 6 to be substantially the same as or smaller than the width of the slat. Further, when the width of the slat 5 is increased, the effective width of the gap 6 is reduced by curving in the width direction by its own weight. The slats may be glued or impregnated with resin so as not to bend. Practical slats and gap widths are considered to be in the range of about 0.5 to 10 mm, although related to the weaving yarn.

  As described above, the three-dimensional woven fabric of the present invention is a basic woven fabric obtained by folding a flat woven fabric in which countless light-shielding units composed of a combination of slats and gaps are arranged in a zigzag manner at the boundary between the slats and the gaps. Since the structure is fixed with warps, the slats 5 are shielded from light like the blind slats of the prior art by hanging them on the inside of a window or the like with a lifting tool (not shown) so that the columnar warps are vertical as shown in FIG. It functions as a blindfold, and also functions as a blind because it can be seen through the inside and outside of the gap. Since the range of shading and blindfolding can be adjusted by changing the slant angle α of the slats by adjusting the hanging angle of the hanging tool, it functions in the same way as a conventionally known blind, and the whole as a monolithic fabric Since it can be formed, the same flexibility as a conventional curtain can be secured, and a soft indoor atmosphere can be produced.

  In the above description, the weft 4 is woven into the horizontal portion of the ground warp 3 to form the slat 5 and the vertical portion is described as a three-dimensional fabric in which the gap 6 is formed without the weft 4 being inserted. A three-dimensional fabric is shown in which wefts 4 are woven into vertical portions to form slats 5 and on the contrary, horizontal portions are formed as gaps 6 without wefts 4 being inserted. The configuration as the fabric is the same as that in FIG. 3, but the three-dimensional fabric is in a state where the slats 5 are arranged in zigzags in two rows with a step corresponding to the gap 6. When this three-dimensional woven fabric is used as a blind, it cannot be seen through in the horizontal direction as shown in FIG. 6, but it can be seen through a gap in the diagonally up and down direction and functions as a blind with a different light shielding range. Further, by changing the inclination angle α of the slats by adjusting the hanging tool (not shown), the vertical step and the width of the gap 6 can be adjusted, so that the light shielding direction and the light shielding range can be adjusted.

  Further, in the above description, the columnar warp 8 is described as being entangled only with the axial weft 3, but in this weaving method, the ground warp 3 is woven in a zigzag manner, whereas the columnar warp 8 is linearly woven. Since it is woven, there will be a large difference in the length of the necessary yarn. In order to average them, the roles of the columnar warp 8 and the ground warp 3 may be sequentially changed at the intersection of the axial weft 4a where both the columnar warp 8 and the ground warp 3 intersect. This is possible only by changing the weaving order of the loom, and this does not essentially change the configuration of the three-dimensional fabric of the present invention.

It is a model figure of the front of a three-dimensional fabric. It is a model figure of the cross section of a three-dimensional fabric. It is an organization chart showing the relationship between ground warp and weft. It is a structure chart showing the relationship between columnar warp and axial weft. It is explanatory drawing of the blind comprised with the solid fabric. It is explanatory drawing of the three-dimensional fabric which arranged the slat vertically. It is a conceptual explanatory drawing of the three-dimensional fabric for the purpose of light shielding.

Explanation of symbols

DESCRIPTION OF SYMBOLS 1 Solid fabric 2 Shading unit 3 Ground warp 3a Ground warp on the front side 3b Ground warp on the back side 4 Weft 4a Shaft weft 5 Slat 6 Crevice 7 Basic fabric 8 Columnar warp 8a Warp 8b Warp 8c Warp 9a Warp 9b Warp 9b

Claims (1)

  A flat woven fabric in which an infinite number of shading units composed of elongated strip-like slats in which wefts are closely woven, and elongated strip-like gaps with only weft warp and no weft arranged at a transparent interval, A basic fabric is formed by zigzag folding the shaft weft located at the boundary between the slats of each light shielding unit and the gap, and adjacent shaft wefts are directly connected to each other on the front side and the rear side of the basic fabric. A three-dimensional woven fabric characterized in that a columnar warp is entangled with an axial weft by entanglement.

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