JP2001172841A - Double curtain fabric - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a curtain fabric that is freely washable, and drapeable, gives warm and soft impression and can be controlled the quantity of the light. SOLUTION: The curtain fabric is constituted with the double-Raschel warp- knit structure by linking the front knit fabric 11 and the rear knit fabric 12 with a linking yarn 13, and forming the raised layer 18. by the raised part 15 of the linking yarns 13 between the front knit fabric 11 and the rear knit fabric 12. The linking yarn 13 is constituted with a plurality of filaments of less than 20 denier fineness. The raised parts 15 of the linking yarn are made rough in either one direction (17) of the course of the fabrics 11 and 12, or the course of the wale direction 17 and the other raised part is made dense in the reverse direction (16). The partition line 25 is formed with the adjacent raised parts 15 and 15 in the dense direction (16) and a hollow or a tunnel 14 continuing in one straight line in the dense direction (16) is formed in the raised layer 18.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a double curtain fabric capable of adjusting the amount of transmitted light.

[0002]

2. Description of the Related Art A blind is known as a window light amount adjusting device capable of adjusting the amount of transmitted light. Japanese Patent Application Laid-Open No. 6-73970 discloses a light quantity control type curtain in which front and back curtains suspended on the front and back of a blind are connected via a blind slat (light shield plate, wing plate) to be integrated.

[0003]

The slat is made of a thin steel plate and cannot be folded lengthwise. Accordingly, the light amount control type curtain disclosed in JP-A-6-73970 is
Even if the curtain fabric on the front and back is dirty, it cannot be put into the washing machine at any time for washing. For this reason, at the time of washing, the slats must be removed from between the front and back curtains, and the curtains and the slats must be separately washed or cleaned. However, in the conventional curtain for adjusting the amount of light, the elevating cord penetrates a large number of slats arranged at regular intervals so as to sew them together. To remove the slat, the elevating cord must first be removed. Then, after washing and cleaning, the slats must be inserted between the curtain fabrics on the front and back sides and the lifting cords must be penetrated to reassemble. However, since the assembly structure of the front and back curtains and the slats is complicated and the number of slats is large, the disassembly and assembly thereof is not easy and practically impossible. Also, since the slats cannot be folded, the conventional light amount control type curtain lacks drape property (flexibility), gives a hard and cold impression as a whole, and has a problem in that the front and back curtain fabrics are easily worn by rubbing on the slats. .

[0004]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a curtain fabric which can be washed freely, has a drape property, and gives a warm and soft impression, and can be adjusted in light quantity.

[0005]

In the double curtain fabric 19 according to the present invention, the two knitted fabrics of the front knitted fabric 11 and the back knitted fabric 12 are composed of:
A nap layer 18 having a certain thickness (t) is provided between them, forming a double Raschel warp knitting structure structure which is connected and knitted at the same time by the connecting yarns 13 knitted into the knitted fabric. The front knitted fabric 11 and the back knitted fabric 12 of the nap portion 15 of the connecting yarn appearing on the nap layer 18 by connecting the back knit fabric 12.
The thickness of the napped layer 18 is set according to the dimension (t) between them, and the napped portion 15 is formed with a coarse density in one of the course direction 16 and the wale direction 17 (17) of the knitted fabric. In the other direction (16), the nap portion 15 and the nap portion 15 adjacent to each other are not in contact with each other in the direction (17) formed with the coarse density. In the formed direction (16), the raised portion 15 and at least a part of the fibers of the raised portion 15 are in contact with each other, and the raised portion 15 and the raised portion are in contact with each other in the direction (16) formed at a fine density. The part 15 is the nap layer 18
Is formed in a straight line in the direction (16) formed with the fine density.
The first feature is that the cavities 14 are formed in the napped layer 18 so as to be separated in the direction (17) formed at a coarse density and continue in a straight line in the direction (16) formed at a fine density.

A second feature of the double curtain fabric 19 according to the present invention is that, in addition to the first feature, the thickness of the napped layer 18 (dimension of the napped portion; t) is 5 to 100 mm and the cavity 14 Is 5 to 100 mm, and the width (d) of the cavity is 0.1 mm of the thickness (t) of the nap layer.
That is, it is set to 5 to 1.2 times.

A third feature of the double curtain fabric 19 according to the present invention is that, in addition to the first feature or the first and second features, the front knitted fabric 11 and the back knitted fabric 12 are made of wale. A chain stitch row 20 and a chain stitch row 20 in which warps are formed linearly in the direction 17
The knitted fabric is knitted by being connected by an insertion thread 21 and is surrounded by the chain stitch row 20 and the insertion thread 21, and has an opening 22 larger than the chain stitch of the chain stitch row 20. That you are doing.

The fourth feature of the double curtain fabric 19 according to the present invention is the above-mentioned first feature, first and second features, first and third features, or first, second and second features. In addition to the feature of 3, the multifilament yarn of a fiber having a single yarn fineness of less than 20 denier having a twist of 30 turns / m or less and substantially non-twisted crimp is used for the connecting yarn 13. .

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A knitted fabric having a double Raschel warp knitting structure is usually cut into piles (so-called center cuts) of a connecting yarn between a front knitted fabric and a back knitted fabric and cut off. Each of the obtained top knitted fabric and back knitted fabric is used as a pile fabric for blankets, carpets, chair upholstery, and the like. The front knitted fabric and the back knitted fabric serving as the base fabric of the pile fabric are knitted by connecting chain stitch rows formed by warps continuously and linearly in the wale direction with insertion threads. The connecting yarn serving as a cut pile is woven by reciprocating (zigzag) between the front knitted fabric and the back knitted fabric while forming a chain stitch together with the warp, and constitutes the cut pile in the wale direction and the course direction, respectively. The dense pile where the nap portion is dense and touches without gaps, fills the nap layer between the surface knitted fabric and the back knitted fabric, forms a pile layer, and covers the surface of the base fabric, the surface knitted fabric and the back knitted fabric. Forming a surface.

According to the present invention, if the pile layer (18) is formed with a strip-shaped groove (14) which extends in a straight line along the wale direction 17 or the course direction 16, the pile groove (14) is formed in the pile direction. The yarns (connecting yarns 13) are arranged at regular intervals (d) in the course direction, and
In the case following 6, the pile yarn (connecting yarn 13) is reciprocated between the front knitted fabric and the back knitted fabric at a constant stitch interval (d), and a constant width (d) according to the interval (d). Cavity 14
Is formed between the front and back knitted fabrics in a straight line along any one of the wale direction and the course direction.

The double curtain material 19 has two edge members (23.2) arranged in parallel at both ends in parallel with a cavity (partition).
4) For example, as shown in the figure, a winding screen 23 and a weight bar 24 are attached, and a roll screen curtain, a curtain that can be pulled up and down or left and right, or a style in which both ends are fixed by being tensioned in any of up, down, left, and right directions. Tailored to curtains and the like. When the outer knitted fabric is pulled by one edge material of the two attached ends and the back knitted fabric by the other edge material, tension is applied to the double curtain fabric. 15, the inclination angle θ of the partition 25 with respect to the front and back knitted fabrics 11 and 12 changes. When the inclination angle θ becomes substantially zero in accordance with the change in the inclination angle θ, the cavity 25 is divided into the front and back knitted fabric 11.
12 (FIGS. 2 and 3), and when the inclination angle θ is substantially a right angle, a double structure sandwiched between the front and back knitted fabrics 11 and 12 (FIG. 3).

In the state of the triple structure (FIGS. 2 and 4), the napped portions 15.1 of the connecting yarn constituting the partition 25
5 touch each other to form a light-shielding layer between the front and back knitted fabrics, so that the amount of light transmitted through the double curtain fabric 19 is smaller than that in the double structure state (FIG. 3). As described above, the front knitted fabric 11 and the back knitted fabric 12 are tensioned in opposite directions, and the amount of light transmitted can be adjusted by changing the inclination angle θ of the partition 25 with respect to the front and back knitted fabrics 11 and 12.

The double curtain fabric 19 has a width (d) of the cavity 14 and a thickness of the nap layer, that is, a length (t) of the nap portion 15.
When the inclination angle θ is substantially zero, a part of the adjacent partitions 25 is overlapped to form a quadruple structure. When the width (d) of the cavity 14 is set to one third of the length (t) of the napped portion 15, the double curtain fabric 19 has a five-layer structure in a state where the inclination angle θ is substantially zero. become. Thus, depending on how many times (n times) the length (t) of the nap portion is set to the width (d) of the cavity, the double curtain fabric 1 in a state where the inclination angle θ is substantially zero is set.
9, the length of the raised portion (t) becomes longer than the width (d) of the cavity, and the number of overlapping partitions 25 increases with the inclination angle θ being substantially zero, so that the light shielding property and the concealing property are increased. Increase.

Conversely, when the width (d) of the cavity 14 is longer than the length (t) of the nap portion 15, the partition 25 and the partition 25 adjacent to each other are formed in a state where the inclination angle θ is substantially zero. Since a gap is formed between the knitted fabrics 11 and 12 at the gap, only the front and back knitted fabrics 11 and 12 overlap each other. You can see through the other side. However, even if there is a gap between the shafts of the blind, if the opposite side is dark, it is not possible to see through, and as the blind has a function as a blindfold, the double curtain fabric 19 is
Even if a gap is formed between adjacent partitions 25 when the inclination angle θ is substantially zero, the size of the gap (width; d)
If −t) is about 20% of the width (d) of the cavity, it functions as a blindfold.

Depending on the ratio between the length (t) of the nap portion and the dimension of the width (d) of the cavity, the light shielding property and the concealing property of the double curtain material change. Depending on the thickness, the density of the napped portions 15 that are in contact with each other, or the specification of the connecting yarn 13, the light shielding property and the concealing property of the double curtain material change. For example, a dark or black yarn is used for the connecting yarn 13, or a composite synthetic fiber having a core-sheath structure in which the core is a dark or black polymer is used for the connecting yarn 13, or When a composite yarn (covered yarn) having a core-sheath structure that is colored or black is used for the connecting yarn 13, the light shielding property and the concealing property of the partition itself 25 constituting the connecting yarn 13 are increased,
Even if the adjacent partitions 25 do not overlap in a double triple manner, a double curtain ground excellent in light-shielding properties and concealment properties can be obtained. On the other hand, when the width (d) of the cavity is extremely short as compared with the length (t) of the napped portion 15, there are too many adjacent partitions 25 in a state where the inclination angle θ is substantially zero.
25, 25 are overlapped, the whole is thickened, the drape property of the double curtain material 19 is impaired, and in extreme cases, the pile fabric material before center cut used for conventional blankets, carpets, chair upholstery, etc. Can not be used for curtains. If the length of the nap portion is too long, the nap portion 15 is compressed, and the top knitted fabric 11 and the back knitted fabric 12 are compressed.
It is difficult to make the dimension of the napped layer 18 uniform between the two.

In consideration of the above, the thickness of the napped layer 18 (dimension of the napped portion; t) is set to 5 to 100 mm, preferably 10 to 40 mm, and the width of the cavity 14 (interval of the napped portion; d) is set to 5 to 100 mm. 100 mm, preferably 10 to 40 mm
And the width (d) of the cavity 14 is preferably set to 0.5 to 1.2 times the thickness (t) of the napped layer 18, so that not only the concealing property and the light shielding property but also the drape property are improved. An excellent double curtain is obtained.

The connecting yarn 13 is preferably composed of a plurality of fibers having a single yarn fineness of less than 20 denier as a main material. However, when the length (t) of the nap portion is 40 to 100 mm, the connecting yarn 13 has A monofilament yarn having a yarn fineness of 50 denier or more is mixed, or a monofilament yarn having a denier of 50 denier or more is partially used as the connecting yarn 13 to form the surface knitted fabric 11.
And the size (t) of the napped layer 18 between the knitted fabric 12 and the back knitted fabric 12 is made uniform. Further, in order to make the size (t) of the napped layer 18 between the front knitted fabric 11 and the back knitted fabric 12 constant, the front knitted fabric 11 and the back knitted fabric 1 are not required.
For the warp (20), the insertion yarn 21, and the connecting yarn 13 constituting the thermoplastic resin 2, a thermoplastic synthetic fiber, particularly a polyester fiber which is tough and has good shape retention by heat setting, is used. When the inclination angle θ with respect to the knitted fabric 12 becomes zero and the partition 25 overlaps the front and back knitted fabrics 11 and 12, the double curtain fabric 19 may be heat-set.

If the front and back knitted fabric is porous and has little concealing property or light blocking property, and if the partition 25 has a high concealing property or light blocking property, the double curtain fabric with the change of the inclination angle θ of the partition with respect to the front and back knitted fabric is provided. The change in the concealing property and the light shielding property of the No. 19 also increases. In order to increase the change, the front knitted fabric and the back knitted fabric are knitted by connecting the chain stitch rows 20 in which the warp yarns are formed linearly in the wale direction 17 with the chain stitch rows 20 with the insertion yarns 21, A net knitted fabric surrounded by the chain stitch row 20 and the insertion yarn 21 and having an opening 22 larger than the chain stitch of the chain stitch row 20 is formed.
m or less, a substantially untwisted bulky crimped multifilament yarn, or a dark or black thread, or a composite synthetic fiber with a core-sheath structure in which the core is a dark or black polymer, or It is recommended to use a composite yarn (covered yarn) having a core-sheath structure in which the core part is dark or black to enhance the light-shielding property and concealment property of the partition itself (25).

[0019]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS FIGS.
2 shows a double curtain fabric assembled as shown in FIG. The front knitted fabric 11 and the back knitted fabric 12 are knitted by connecting a chain stitch row in which warps are formed linearly in the wale direction with an insertion thread for each course. As a connecting yarn for connecting the two knitted fabrics 11 and 12, a non-twisted multifilament yarn consisting of 36 crimped filaments having a single yarn fineness of 2.1 denier is used.

The distance between the needle gauges, ie, the chain stitch rows, is about 1.15 mm, and the distance between the course gauges, ie, the chain stitches of the chain stitch row (the distance between the inserted yarns connected for each course, the distance between the inserted yarns). ) Is about 1.15 mm. The connecting yarns are arranged every 11 needle gauges (11 stitches of a chain stitch), and every 10 needle gauges (10 stitches of the chain stitches knitted by the warp) form a chain stitch with the warp while forming a chain stitch in each course. Reciprocating between the front knitted fabric 11 and the back knitted fabric 12 at intervals of about 15 mm in the course direction.
2 and connect the front knitted fabric 11 and the back knitted fabric 12 by about 15 mm.
The raised portion 15 having a length (t) is formed. Therefore,
Between the front knitted fabric 11 and the back knitted fabric 12, the length of one side which is surrounded by the front knitted fabric 11, the back knitted fabric 12, and the front and rear partitions 25, and is continuous in a straight line in the wale direction is about 15 mm. A cavity 14 having a rectangular cross section is formed. Front knitted fabric 11 and back knitted fabric 12
The length of one facing side is about 1.2 mm according to the distance between the chain stitch rows, and the length of the other facing side is about 1.2 mm according to the distance between the chain stitches. Are surrounded by the chain stitch row and the insertion yarn, and an opening of about 1.2 mm in length and width larger than the chain stitch of the chain stitch row is formed in a lattice shape.

The double curtain fabric is used for the roll screen curtain 26 with the course direction being vertical and the wale direction being horizontal, and its upper edge is interrupted between the front knitted fabric 11 and the back knitted fabric 12. The hoisting shaft 23 is attached as described above, and the upper edge (27) of the front knitted fabric and the upper edge (28) of the back knitted fabric are detachably joined to the peripheral surface of the hoisting shaft 23. Between the joints 27 and 28 and the uppermost partition 25A,
It is longer than the length (t) of the raised portion 15. A weight bar 24 is detachably attached to the lower edge (29) of the front knitted fabric and the lower edge (30) of the back knitted fabric. When the roll screen curtain 26 is viewed from the side, the distance from the joint 29 between the front knitted fabric and the weight bar to the joint 30 between the back knitted fabric and the weight bar is equal to the length (t) of the napped portion 15, The weight bar 24 and the partition 25 are arranged in parallel.

In this roll screen curtain 26,
A portion (31) from the hoisting shaft 23 and the joint 27 to the uppermost partition 25A of one of the front and back knitted fabrics (11),
When the double curtain fabric is wound on the winding shaft 23, the slack 31
Occurs, but the uppermost partition 25A of the knitted fabric (11)
Is lifted by the other knitted fabric (12) via the uppermost partition 25A. In this state, all the partitions 25 are lifted by the other knitted fabric 12, and the appearance is tensed by the weight of the weight bar 24.
As in the case of 12, it hangs vertically and is wound up by the hoisting shaft 23, and all the partitions 25 are suspended from the hoisting shaft 23 in such a state that they hang vertically (FIGS. 2 and 4).

When all of the partitions 25 are suspended and the partitions 25 are horizontal, the front and back knitted fabrics 11 and 12 are vertically tensioned between the weight bar 24 and the hoisting shaft 23, and the front and back knitted fabrics are tensioned. Dimension (t) of the napped portion 15 between
The napped layer 18 (14) having a thickness according to the vertical direction can be formed. In a state where the partition 25 is horizontal, that is, in a state where the inclination angle θ of the partition 25 with respect to the front and back knitted fabrics 11 and 12 is substantially a right angle, the front and back knitted fabric 1 is not blocked by the partition 25.
Light is transmitted through 1 and 12 (FIG. 3). When the hoisting shaft 23 is slightly rotated from the state where the partition 25 is horizontal, the hoisting shaft 2 of one of the front and back knitted fabrics 11 in the direction opposite to the rotation direction is rotated.
3 and the portion from the joint 27 to the uppermost partition 25A again causes slack 31, and all the partitions 25 are lifted by the other knitted fabric (12).
5 is pulled by the weight bar 24 via one of the knitted fabrics 11 and inclined, and the front and back knitted fabrics 11 of all of the partitions 25.
12, the concealing property and the light shielding property of the double curtain material are increased. Front and back knitted fabric 1 of the partition 25
When the winding shaft 23 is further turned after the inclination angle θ with respect to 1 · 12 becomes zero, the double curtain fabric is wound up by the winding shaft 23 in accordance with the rotation.

In this embodiment, the width (d) of the cavity 14 and the length (t) of the raised portion 15 are both about 15 mm.
In a state where the inclination angle θ of the partition 25 with respect to the front and back knitted fabrics 11 and 12 is zero, the double curtain fabric is turned into the front and back knitted fabric 11.
12 has a triple structure consisting of the partition 25 and the partition 25 has an inclination angle θ with respect to the front and back knitted fabrics 11 and 12 as compared with a state in which the partition 25 is in close contact with the front and back knitted fabrics 11 and 12. And light-shielding properties are increased. As described above, the double curtain fabric is formed on the front and back knitted fabric 1 according to the rotation angle of the winding shaft 23.
It becomes a triple structure of 1.12 and the partition 25, or
It also has a double structure of the front knitted fabric 11 and the back knitted fabric 12, and the degree of inclination of the partition 25 can be adjusted to change the concealing property and the light shielding property, and the amount of transmitted light can be adjusted.

[0025]

As described above, according to the present invention, the front and back knitted fabric 1
A connecting thread 13 for connecting between 1 and 12 performs a light amount adjusting function instead of the slat of the conventional light amount adjusting type curtain. Since the connecting yarn 13 (partition 25) in place of the slat is made of a flexible fiber, the entire double curtain fabric is flexible, flexible and drapable, can be washed freely, and gives a warm and soft impression. It will be.

When the inclination angle θ of the partition 25 with respect to the front and back knitted fabrics 11 and 12 becomes zero and the front and back knitted fabrics 11 and 12 and the partition 25 are in a triple or quadruple structure, the inner partition 25 (connecting yarn) is formed. Influenced surface knitted fabric 11 and back knitted fabric 1
Since the color tone and the shading outside 2 also change, a double curtain fabric 19 in which the color tone changes with the amount of transmitted light is obtained.

In this case, the front knitted fabric 11 and the back knitted fabric 12 are made of a porous net knitted fabric,
2 becomes zero, the front and back knitted fabric 11
When printing is performed on the double curtain fabric 19 in a state where the partition 25 is overlapped with the partition 12, the printed print pattern is not clearly drawn on the porous surface knitted fabric 11 or the back knitted fabric 12, and the fibers are dense. Since it is clearly drawn on the partition 25, a new curtain is obtained in which the printed print pattern can be seen or hidden according to the inclination angle θ of the partition 25 with respect to the front and back knitted fabrics 11 and 12. In particular, the front knitted fabric 11 and the back knitted fabric 12 can be obtained. If the warp (20) and the insertion yarn 21 constituting the above are made of a fiber having no dyeing property for the print print, and only the connecting yarn 13 is used a fiber having the dyeability for the print print. ,
The print pattern that appears and disappears becomes clearer.

In the double curtain fabric of the present invention, edging materials 23 and 24 are attached in parallel to both ends parallel to the cavity (partition), and the edging materials 23 and 24 at both end edges are pulled to form the front knitted fabric 11 and The amount of transmitted light and the color tone can be changed only by tensioning the back knitted fabric 12 in the opposite direction, so that one end is lifted up and down and opened and closed like a fitted-in vehicle window, or moved to the left and right without opening and closing. It is practical as a style curtain used by attaching the edging members 23 and 24 to a window frame, particularly as a vehicular curtain. Thus, according to the present invention,
A new curtain can be obtained both technically and in terms of design.

[Brief description of the drawings]

FIG. 1 is a perspective view of a double curtain fabric according to the present invention.

FIG. 2 is a side view of a roll screen curtain using a double curtain fabric according to the present invention.

FIG. 3 is a side view of a roll screen curtain using the double curtain fabric according to the present invention.

FIG. 4 is a side view of a roll screen curtain using the double curtain fabric according to the present invention.

[Explanation of symbols]

 REFERENCE SIGNS LIST 11 front knitted fabric 12 back knitted fabric 13 connecting thread 14 cavity 15 nap portion 16 course direction 17 wale direction 18 nap layer 19 double curtain fabric 20 chain stitch row 21 insertion thread 22 opening 23 winding shaft 24 weight bar 25 partition 26 roll Screen curtain 27/28/29/30 Joint 31 Looseness

Claims (4)

[Claims] (1) A front knitted fabric (11) and a back knitted fabric (12)
The two knitted fabrics have a nap layer (1
8) and the connecting yarns (1
3) forming a double Raschel warp knitting structure which is connected and knitted at the same time; (b) the nap portion (1) of the connecting yarn appearing in the nap layer (18) connecting the front knitted fabric and the back knitted fabric.
The thickness of the nap layer (18) is set by the dimension (t) between the front knitted fabric (11) and the back knitted fabric (12) in (5); Formed at a coarse density in one direction (17) of the course direction (16) and the wale direction (17), and formed at a fine density in the other direction (16);
(D) In the direction (17) formed with the coarse density,
Neighboring nap portions (15) and nap portions (15) are not in contact with each other; (e) direction (1)
6) In the adjacent raised portion (15) and the raised portion (15)
(F) the nap portions (15) and the nap portions (15) that touch each other in the direction (16) formed at the fine density partition the nap layer (18). Forming the partition (25) in a straight line in the direction (16) formed by the fine density;
(G) A cavity (14) is formed in the nap layer (18) which is partitioned by the partition (25) in a direction (17) formed at a coarse density and linearly continues in a direction (16) formed at a fine density. Double curtain ground. 2. The nap layer (18) according to claim 1, wherein the thickness (t) is 5 to 100 mm, the width (d) of the cavity (14) is 5 to 100 mm, and the cavities (14) ) Is 0.5 to 1.0 of the thickness (t) of the napped layer (18).
The double curtain fabric according to claim 1, which is doubled. 3. A chain stitch row (20) and a chain stitch row in which the front knitted fabric (11) and the back knitted fabric (12) according to the above-mentioned claim 1 form warps in a straight line in the wale direction (17). (20) are connected and knitted with an insertion thread (21), and the chain stitch row (2
2. The net knitted fabric, which is surrounded by the loop stitches (0) and the insertion yarns (21) and forms an opening (22) larger than the chain stitch of the chain stitch row (20). Double curtain ground. 4. The connecting yarn (13) according to claim 1, wherein
Has a twist of 30 turns / m or less and is substantially non-twisted and has a single yarn fineness of 2
The double curtain fabric according to claim 1, which is a crimped multifilament yarn of a fiber having a density of less than 0 denier.