JP3277577B2 - Seamless wide curtains - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a seamless wide curtain suitable for various event venues and stage equipment.

[0002]

2. Description of the Related Art As curtains for various event venues and stage devices, knitting is performed by using a flame-retardant fiber yarn or by imparting flame retardancy or flame resistance by post-processing after knitting. Although a warp-knitted curtain is known, a conventional warp-knitted fabric is knitted in a relatively narrow width of 90 cm to 150 cm in relation to the size of a knitting machine.
Therefore, when used as a curtain, the warp-knitted fabric is cut to a desired length, and a plurality of the warp-knitted fabrics are laterally connected by stitching to obtain a desired width. Therefore, one curtain always has one or more vertical seams, and the seams are thicker than the other parts, resulting in a difference in light transmission and light blocking properties. When hanging curtains at the event venue or stage for the purpose of translucency or shading, the above seams become apparent as vertical streaks due to the difference in translucency or shading, resulting in a loss of realism. And was annoying.

[0003]

The present invention has a working width of 3
The present invention provides a wide curtain that can be knitted using a double Russell machine of m or more, has a wide width of 6 m or more, has no seams, and has uniform translucency or light-shielding properties over the entire width.

[0004]

SUMMARY OF THE INVENTION A wide curtain according to the present invention is a flame retardant or flameproof curtain comprising a front knitted fabric, a back knitted fabric knitted in the same structure by a double Russell machine, and the above-mentioned surface curtain. A plurality of chain knitting rows each comprising a connecting portion for connecting the knitted fabric and the back knitted fabric at one end in the width direction, wherein the surface knitted fabric and the back knitted fabric are arranged at intervals substantially equal to the width of the binding portion. And an insertion yarn extending between the chain knitting rows, and the above-mentioned connecting portions form one end of the front knitted fabric and one end of the back knitted fabric.
And the binding yarn that connects the two chains
And the same knitting yarn as the above-mentioned insertion yarn is used for the binding yarn.
The insertion yarn and the binding yarn are arranged at substantially the same density, and the top knitted fabric, the back knitted fabric and the binding portion have substantially the same light transmitting or shielding properties. The total width of the knitted fabric and the connecting portion is at least 6 m.

[0005] The above-mentioned wide curtain is obtained by knitting using a flame-retardant fiber yarn or imparting flame retardancy or flame resistance by post-processing after knitting. It is preferable to use a yarn comprising a fiber having an LOI value of 25 or more. As such a fiber, a flame-retardant polyester fiber (manufactured by Toyobo Co., Ltd., trade name “Toyobo Heim”) and a flame-retardant polynosic fiber (Toyobo Co., Ltd.) And trade name “Toyobo Toughban”). In addition, the basis weight of the said curtain is 100-200 when the translucency is the objective.
g / m ² , and 200 to 500 when the purpose is light shielding.
g / m ² is preferred.

[0006]

[Function] Since the front knitted fabric and the back knitted fabric are connected to each other at the connecting portion at one end in the width direction, the knitted fabric is removed from the double Russell machine and spread right and left after knitting, thereby increasing the width of the front knitted fabric or the back knitted fabric. A warp knitted fabric approximately twice as large as the ground is obtained. That is, a warp knitted fabric having a width of 6 m or more can be obtained by using a double Russell machine having a working width of 3 m or more. Therefore, by suspending the wale in the vertical direction, at least 6 m
A seamless curtain with an unrestricted width and height is obtained.
If the wale is hung horizontally, at least 6m
A seamless curtain with an unrestricted height and width is obtained.

[0007] The front knitted fabric and the back knitted fabric are each composed of a chain knitting row in the wale direction and an insertion yarn therebetween.
The binding portion is composed of a chain knitting line forming one end of each of the front knitted fabric and the back knitted fabric, and a binding yarn connecting the two chain knitting lines. Since the interval between the rows (needle pitch) and the width of the connecting portion (the interval between the hooks) are substantially equal, when the front knitted fabric and the back knitted fabric are spread left and right, the intervals between the chain knitted rows are substantially uniform over the entire width. Therefore, using the same knitting yarn insertion yarns and binding yarns, by substantially equalizing the density of its, Omoteami place, the whole of the light-transmitting or light-shielding Urahen point and stitched portion is substantially uniform .

[0008]

[Example] Double Russell machine (manufactured by KARL MAYER,
Using an HDR-10EHW, 170 inches, 6 gauge, distance between kettles of 4 mm), a warp knitted fabric 10 having a basis weight of 130 g / m ² (see FIG. 1) was knitted for the purpose of a transparent curtain. As the knitting yarn, a spun yarn (# 30 twin yarn) made of a polyester-based flame-retardant fiber (manufactured by Toyobo Co., Ltd., trade name "Heim", LOI value 30 to 32) was used. The knitting structure was a coarse net structure, and the above-described knitting yarn was used for all of chain knitting, insertion and bonding.

That is, the knitting yarn for chain knitting is supplied to all the needles to knit the chain knitting line 11a of the front knitted fabric 11 and the chain knitting line 12a of the back knitted fabric 12, respectively. The knitting yarn for binding is inserted between the adjacent chain knitting rows 11a, 11a and between the two adjacent chain knitting rows 12a, 12a, and the knitting yarn for binding is inserted into the chain knitting row 11a at the right end of the front knitted fabric 11 and the back knitted fabric 1.
2 was reciprocated back and forth between the right and left chain knitting rows 12a, and was connected to the chain knitting rows 11a and 12a to form the connection portions 13. In the drawing, 11b and 12b are insertion yarns made of the above-described knitting yarn for insertion, and 13a is a binding yarn made of the knitting yarn for binding.

[0010] Since the warp knitted fabric 10 is knitted by a double Russell machine having a working width of 170 inches, the joining portion 13
When the front knitted fabric 11 and the back knitted fabric 12 are spread right and left around the center, the total width is about 8.4 m. Since the length of this 8.4 m is a length that reaches the ceiling from the floor of most stages, when the warp knitted fabric 10 is used as a stage curtain, the length of the warp knitted fabric 10 is equal to the width of the stage. Cut into pieces,
No matter how wide the stage is, the entire stage is joined by hanging the stage with its width direction (course direction) facing the height direction of the stage and its vertical direction (wale direction) facing the width direction of the stage. Can be covered with a single curtain without any.

In the above double Russell machine, since the gauge number is 6, the needle pitch, that is, the chain knitting row 11a,
The interval of 12a is substantially equal to the distance between the kettles of 4 mm, and the chain knitting rows 11a and 12a are arranged at equal intervals over the entire width. And use the same knitting yarn for insertion and binding,
Since the insertion knitting yarn is reciprocated between the two stitches, one knitting yarn is arranged for each course, and the arrangement interval is equal to the arrangement interval of the binding yarns 13 a in the binding portion 13. Therefore, the respective knitting yarn densities of the front knitted fabric 11, the back knitted fabric 12, and the joint portion 13 become equal to each other, and the light transmittance becomes uniform over the entire surface. There is no.

The knitting yarn may be either a bleached yarn or a dyed yarn. In addition, it can be dyed after knitting. In addition, scenery and the like can be drawn on the obtained curtain by spraying, and even when this is illuminated from the back side or the front side, there is no seam and no discomfort due to the uniform light transmission over the entire surface. In the above embodiment, the insertion yarn is inserted between two stitches (between two wales). However, the insertion yarn is inserted between three stitches (between three wales) or four stitches (between four wales).
In this case, it is preferable to use two or three knitting knitting yarns to adjust the arrangement density of the binding yarns 13a to the arrangement density of the insertion yarns 11b and 12b. .

[0013]

As described above, according to the present invention, in a curtain having flame retardancy or flame retardancy, a front knitted fabric, a back knitted fabric and a back knitted fabric knitted by the double Russell machine into the same structure. A double raschel machine having a working width of at least 3 m, comprising a connecting portion for connecting the knitted fabric at one end in the width direction, and the total width of the front knitted fabric, the back knitted fabric and the connecting portion is 6 m or more. Can be easily organized by
If the wale is hung up and down, at least 6
It is a seamless curtain with a height of m and an unlimited height,
When the wale is hung in the horizontal direction, a seamless curtain having a minimum height of 6 m and an unlimited width is obtained.

Further, the above-mentioned front knitted fabric and back knitted fabric are composed of a number of chain knitting rows arranged at intervals substantially equal to the width of the joint portion, and an insertion yarn extending between the chain knitting rows . Joint
A chain knitting row forming each end of the front knitted fabric and the back knitted fabric, and
A binding yarn for joining the two chain knitting rows,
The same knitting yarn as the above-described insertion yarn is used, and the insertion yarn and the binding yarn are arranged at substantially the same density so that the front knitted fabric, the back knitted fabric and the binding portion have substantially the same light-transmitting or light-shielding properties. As described above, in spite of the fact that there is no seam as described above, when hanging on various event venues or stages, an excellent sense of realism that cannot be obtained with a curtain having a conventional seam can be obtained.

[Brief description of the drawings]

FIG. 1 is a perspective view of an embodiment of the present invention.

[Explanation of symbols]

 10: warp knitted fabric 11: front knitted fabric 11a, 12a: chain knitting row 11b, 12b: inserted yarn 12: back knitted fabric 13: binding portion 13a: binding yarn

Continuation of the front page (58) Field surveyed (Int. Cl. ⁷ , DB name) A47H 23/00-23/14 D04B 21/10-21/20

Claims (1)

(57) [Claims] 1. A curtain having flame-retardant or flame-retardant properties, wherein a front knitted fabric, a back knitted fabric and the above-mentioned front knitted fabric and back knitted fabric knitted into the same structure by a double Russell machine at one end in the width direction. A plurality of chain knitting rows, which are composed of connecting parts to be connected, and wherein the above-mentioned top knitted fabric and back knitted fabric are arranged at intervals substantially equal to the width of the above-mentioned knitting parts, and an insertion yarn extending between the chain knitting rows. And the above-mentioned joints form one end of the front knitted fabric and one end of the back knitted fabric.
A chain knitting row to be formed and a binding yarn connecting the two chain knitting rows.
And the same knitting yarn as the above-mentioned insertion yarn is used for the binding yarn.
The insertion yarn and the binding yarn are arranged at substantially the same density, and the top knitted fabric, the back knitted fabric and the binding portion have substantially the same light transmitting or shielding properties. A seamless wide curtain, wherein the total width of the knitted fabric and the joint is at least 6 m.