JP2003336149A - Synthetic resin fiber yarn net for roll screen door and synthetic resin fiber yarn net - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a synthetic resin fiber yarn-knitted net which is used for roll screen doors, can thinly be formed to reduce its roll diameter, has a sufficiently shape-retaining property (flatness, and the like), and can be thermally processed, while well retaining its shape. <P>SOLUTION: This synthetic resin fiber yarn-knitted net for the roll screen doors or the synthetic resin fiber yarn-knitted net is produced by knitting sheath- core structure synthetic fiber yarns with a raschel knitting machine into the net-like knitted fabric and then thermally fusing the cross points of the raschel knitted fabric to bind the yarns. Therein, at least one of front warps, middle wefts, and back wefts has a thickness of ≤50 denier. Three middle wefts are flown on three front warps from the right side to the left side and then knitted, respectively. Two back wefts are flown on two front warps from the right side to the left side and then knitted, respectively. The three middle wefts and the two back wefts are crossed to each other between two warps. <P>COPYRIGHT: (C)2004,JPO

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention particularly relates to a net for roll screen door of synthetic resin fiber yarn formed by knitting synthetic resin fiber yarn and a net of synthetic resin fiber yarn.

[0002]

2. Description of the Related Art Recently, nets for screen doors (for purposes such as insect repellent, light-shielding, and blinding), which are knitted using synthetic resin fiber yarns instead of wire nets, have been developed, and plastic deformation of synthetic resin fiber yarns is utilized. A type that is configured to be foldable by pleating or a type that is capable of being rolled up has been developed.

For example, as a conventional screen door made by Russell knitting, as shown in FIG. 7, a total of three middle weft yarns 2 and one back weft yarn, three warp yarns, and a 75 denier yarn are used. When it was used as a roll screen, the knitting net was thick because the yarn was thick when it was wound when the roll screen was opened and closed. Then, the winding diameter becomes large, and it becomes bulky at the time of laying, and there is a disadvantage that a large space is required. At the same time, even if a 75 denier yarn is used, it is knitted, so that there is a looseness of the knitting structure, and it is difficult to stabilize the form in terms of strength.

[0004]

As a means for solving such a problem, first, in order to reduce the diameter when wound in a roll, for example, it is conceivable to thin the yarn to be used to 50 denier. In this case, the yarn becomes thin and the net becomes thin, and the winding diameter becomes small when the roll screen is opened and closed, but the net has problems in tensile strength, tearing, and elongation. That is, as a result, when the screen door is opened, it is difficult to maintain the shape (flatness, etc.) of the net, and a state of sagging or sagging occurs.

According to the present invention, a net for a roll screen made by knitting a synthetic resin fiber yarn is made thin so that the winding diameter can be made small and sufficient shape retention (flatness etc.) is provided. The purpose is to make it possible to heat-process a fiber yarn net with good shape retention.

[0006]

In order to achieve the above object, a net for roll screen door of synthetic resin fiber yarn according to the present invention has a core-sheath structure synthetic resin fiber whose peripheral surface is covered with a low melting point resin. A thread is a warp thread, and a thread of the same quality as the warp thread or a normal synthetic resin fiber thread is a weft thread, knitted into a net shape by Russell knitting, and the synthetic resin fiber in which the intersections of the Russell knitting are bonded by heat welding. It is a net for roll screen doors, including front warp yarn, middle weft yarn,
And, at least one of the back weft threads has a thickness of 50 denier or less, the middle weft thread is three, and each of the front warp threads is knitted in three jumps from the right to the left with respect to the predetermined warp threads. Two back weft threads are knitted from the left warp thread at a predetermined interval, and each knitted from left to right, and between the two warp threads, three middle weft threads are formed between the two warp threads. The two back weft threads are configured to cross each other.

In order to achieve the above-mentioned object, the net for a roll screen door of synthetic resin fiber yarn according to the present invention is a synthetic resin fiber yarn having a core-sheath structure whose peripheral surface is covered with a low melting point resin, which is a vertical yarn. As the warp yarn, a yarn of the same quality as the warp yarn or a normal synthetic resin fiber yarn is used as a weft yarn and knitted in a net shape by Russell knitting, and the roll screen door of the synthetic resin fiber yarn in which the intersections of the Russell knitting are joined by heat welding At least one of the front warp yarn, the middle weft yarn, and the back weft yarn has a thickness of 50 denier or less, and the two middle weft yarns are the front warp yarns at predetermined intervals. On the other hand, each is knitted in three jumps from the right to the left, two back weft threads are used, and each of the front warp threads is knitted in two jumps from the left to the right with respect to the vertical warp threads. Book warp In, and are configured to two transverse yarns of the three weft yarn and the back of the middle cross each other.

Further, the net of the synthetic resin fiber yarn according to the present invention is a synthetic resin fiber yarn having a core-sheath structure whose peripheral surface is coated with a low melting point resin as a warp yarn, and a yarn of the same quality as the warp yarn or a normal yarn. The synthetic resin fiber yarn is a weft yarn and is knitted into a net by Russell knitting, and the synthetic resin fiber yarn net in which the intersections of the Russell knitting are joined by heat welding is a front vertical yarn and a middle weft yarn. At least one of the thread and back weft has a thickness of 50 denier or less, and three middle weft threads, each of which is knitted from the right to the left by three threads with respect to the front warp threads at predetermined intervals. However, with two back weft threads, knitting two warp threads from the left to the right with respect to the front warp threads at predetermined intervals, and between the two warp threads, three middle weft threads are provided. Two threads, thread and bag Configured such yarns cross each other, and, Yes by coating a thermosetting resin on the knitting net, it hereinafter, is to enable pleat molding by heat processing of subsequent.

[0009]

BEST MODE FOR CARRYING OUT THE INVENTION In the present invention, examples of the synthetic resin fiber yarn having a core-sheath structure in which the low melting point resin is coated on the peripheral surface described above include, for example, polyester as a core material and modified polyester having a low melting point as a sheath. A heat-welding filament (Kanebo's Bellcoupule: trade name) coated as the above can be twisted (or bundled) and used as long as it is a material having substantially the same function as this, a known thread (Filament) can be used. Further, as the above-mentioned ordinary synthetic resin fiber thread, it is preferable to use an appropriate thermosetting resin fiber thread, but by using such a fiber in combination with other synthetic resin fiber, natural fiber, glass fiber or the like. Is also good.

It is preferable that the front warp yarn is composed of 75 denier, the middle weft yarn is composed of 50 denier, and the back weft yarn is composed of 50 denier. Further, it is preferable that the front warp yarns are 50 denier, the middle weft yarns are 75 denier, and the back weft yarns are 50 denier. Alternatively, in the present invention, it is preferable that the front warp yarn is 50 denier, the middle weft yarn is 50 denier, and the back weft yarn is 75 denier. Further, it is preferable that the front warp yarn, the middle weft yarn and the back weft yarn are all made of 50 denier.

[0011]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the synthetic resin fiber yarn roll screen door net and the synthetic resin fiber yarn net of the present invention will now be described in detail with reference to the drawings. In order to easily understand the knitting state of the net by the Russell knitting, the warp yarn and the weft yarn are disassembled and described.

FIG. 1 shows a front warp yarn 1 which is arranged at a predetermined interval. Here, 5
0 denier yarn is used. This yarn is a synthetic resin fiber yarn having a core-sheath structure whose peripheral surface is coated with a low-melting resin, which is a heat-welding filament (Kanebo's Bellcouple: Trademark name) is used.

FIG. 2 shows a middle weft thread 2 made of the same material as the warp thread 1 and having a thickness of 50 denier. In the figure, 6 warp threads 1 are provided. On the other hand, it is shown how the three weft threads 2 are knitted, and in the view that each weft thread 2 is inserted from the bottom of the drawing with respect to the warp thread 1, 3 from right to left. Skipping books,
Knitting on the warp yarn 1, moving along the warp yarn 1 by a predetermined pitch, then jumping three to the right, entangled with the warp yarn 1, moving again along the warp yarn 1 by a predetermined pitch, and then knitting three yarns to the left. Is done.

Next, FIG. 3 shows a knitted state of the two back weft threads 3. The same yarns as the yarns 1 and 2 are also used for these two yarns 3. These yarns 3 are entangled in the vertical yarn 1 by jumping two yarns from the left to the right with respect to the vertical yarn 1.
Knitting is performed such that after moving a predetermined pitch along, the two jumps to the left and entangle with the warp yarn 1 again. Fig. 4 shows these three middle weft threads 2 and two back weft threads 3
Shows the state of knitting.

FIG. 5 shows a middle 3 between two warp threads 1.
This shows the relationship between the two weft threads 2 of the book and the two weft threads 3 of the back, and the three weft threads 2 of the middle and the two weft threads 3 of the back intersect each other.

Therefore, in the net for roll screen door made of synthetic resin fiber yarn, the synthetic resin fiber yarn having the core-sheath structure whose peripheral surface is coated with the low melting point resin is used as the warp yarn 1 and the same quality as the warp yarn 1 or Ordinary synthetic resin fiber yarns are used as weft yarns 2 and 3 and are knitted in a net shape by Russell knitting, and the intersections of the Russell knitting are joined by heat welding. Front warp yarn 1 and middle weft yarn 2 , And the back weft threads 3 each have a thickness of 50 denier (below), the middle weft threads 2 are three, and the front warp threads 1 are spaced at predetermined intervals.
On the other hand, each is knitted in three jumps from right to left, two back weft threads 3 are used, and each warp thread is knitted in two jumps from left to right for one warp thread 1 at the front, which is at a predetermined interval. Between the two warp yarns 1, the three weft yarns 2 of the middle and the two weft yarns 3 of the back are configured to intersect each other.

At this time, if the front warp yarn 1, the middle weft yarn 2, and the back weft yarn 3 all have a thickness of 50 denier, the purpose of knitting the net can be achieved more reliably. If at least one of them is 50 denier or less, the object can be substantially achieved. Therefore, 75 denier yarns may be combined and knitted as follows. The front warp yarn is 75 denier, the middle weft yarn is 50 denier, and the back weft yarn is 50 denier. The front warp yarn is 50 denier, the middle weft yarn is 75 denier, and the back weft yarn is 50 denier. The front warp threads are 50 denier, the middle weft threads are 50 denier, and the back weft threads are 75 denier.

Further, as shown in FIG. 6, conversely, the number of middle weft threads 2 is two, and the number of back weft threads 3 is three,
Between the vertical threads 1, the three middle weft threads and the two back weft threads may intersect each other.

The net of the synthetic resin fiber yarn according to the present invention is a synthetic resin fiber yarn having a core-sheath structure whose peripheral surface is coated with a low-melting resin as a warp yarn, and has the same quality as the warp yarn or a normal yarn. The synthetic resin fiber yarn is used as a weft yarn and knitted into a net shape by Russell knitting, and the intersections of the Russell knitting are joined by heat welding.

The specific knitting is substantially the same as the net for roll screen doors described above. That is, although not shown, at least one of the front warp yarn, the middle weft yarn, and the back weft yarn has a thickness of 50 denier or less, and the three middle weft yarns are provided, and the front warp has a predetermined interval. Each knitted from right to left in 3 stitches, knitted in back weft 2 threads, and knitted from left to right in 2 stitches at each front warp thread at a predetermined interval, Between the two warp threads, the three middle weft threads and the two back weft threads intersect each other.

The only difference is that the knitting net is coated with a thermosetting resin. As the coating of the thermosetting resin, a method of immersing in an appropriate liquid such as melamine, epoxy, polyamide resin or the like is adopted. As a result, it becomes possible to form pleats by thermal processing after fire, and it can be used as a pleated curtain or for other purposes.

[0022]

According to the present invention, a net for a roll screen made of knitted synthetic resin fiber yarn is thinly constructed by using a fine count yarn, and five middle weft yarns and back weft yarns are used. By carrying out a predetermined knitting as the weft thread, it is possible to reduce the roll winding diameter when opening and closing the screen door while giving sufficient strength to the net and obtaining sufficient shape retention when the screen door is opened. This is a remarkable effect that can be achieved.

Further, by coating the knitting net with a thermosetting synthetic resin, the pleating process or the like can be performed by the subsequent heat treatment while obtaining the above-mentioned advantages. Other advantages of the present invention are as described in the above-mentioned Embodiment Mode and Examples.

[Brief description of drawings]

FIG. 1 is a front view of a main part schematically showing an exploded state of a knitting state with a net for a roll screen according to the present invention.

FIG. 2 is a front view of a main part schematically showing an exploded state of another knitting state of the net for the roll screen according to the present invention.

FIG. 3 is a front view of a main part schematically showing an exploded state of another knitting state of the net for the roll screen according to the present invention.

FIG. 4 is a front view of a main part schematically showing an exploded state of another knitting state of the net for the roll screen according to the present invention.

FIG. 5 is a schematic front view of an essential part schematically showing a knitted state of a net for a roll screen according to the present invention.

FIG. 6 is a schematic front view of an essential part schematically showing a knitted state of another aspect of the net for a roll screen according to the present invention in an exploded manner.

FIG. 7 is a schematic front view of an essential part schematically showing a knitted state of another aspect of a net for a roll screen according to the prior art in an exploded manner.

[Explanation of symbols]

1 warp yarn 2 weft (middle) 3 weft (back)

Claims (7)

[Claims] 1. Russell knitting, wherein a synthetic resin fiber yarn having a core-sheath structure whose peripheral surface is coated with a low melting point resin is used as a warp yarn, and a yarn of the same quality as the warp yarn or a normal synthetic resin fiber yarn is used as a weft yarn. A net for roll screen doors made of synthetic resin fiber yarns, which are knitted into a net shape by means of heat-welding at the intersection points of the Russell knitting, and which include at least front warp yarns, middle weft yarns, and back weft yarns. One has a thickness of 50 denier or less, three middle weft threads, each of which is knitted from the right warp thread to the left with three intervals from the front warp threads at a predetermined interval, and two back weft threads With respect to the front warp yarns at a predetermined interval, each knitted from left to right by two stitches, and between the two warp yarns, three middle weft yarns and two back weft yarns are knitted between the two warp yarns. Configured to intersect each other A net for roll screen doors made of synthetic resin fiber yarn. 2. A Russell knitting, wherein a synthetic resin fiber yarn having a core-sheath structure whose peripheral surface is coated with a low melting point resin is used as a warp yarn, and a yarn of the same quality as the warp yarn or a normal synthetic resin fiber yarn is used as a weft yarn. A net for roll screen doors made of synthetic resin fiber yarns, which are knitted into a net shape by means of heat-welding at the intersection points of the Russell knitting, and which include at least front warp yarns, middle weft yarns, and back weft yarns. One has a thickness of 50 denier or less, two middle weft threads, each of which is knitted in three jumps from the right to the left with respect to the front vertical warp threads, and two back weft threads. With respect to the front warp yarns at a predetermined interval, each is knitted in two jumps from left to right. Between the two warp yarns, the three middle weft yarns and the two back weft yarns are knitted. So that they cross each other A net for roll screen doors made of synthetic resin fiber yarn, which is characterized by being formed. 3. The front warp yarn is 75 denier, the middle weft yarn is 50 denier, and the back weft yarn is 5.
The net for roll screen door of synthetic resin fiber yarn according to claim 1 or 2, which is composed of 0 denier. 4. The front warp yarn is 50 denier, the middle weft yarn is 75 denier, and the back weft yarn is 5.
The net for roll screen door of synthetic resin fiber yarn according to claim 1 or 2, which is composed of 0 denier. 5. The front warp yarn is 50 denier, the middle weft yarn is 50 denier, and the back weft yarn is 7 denier.
The net for roll screen door of synthetic resin fiber yarn according to claim 1 or 2, which is composed of 5 denier. 6. The net for roll screen door of synthetic resin fiber yarn according to claim 1 or 2, wherein the front warp yarn, the middle weft yarn and the back weft yarn are all made of 50 denier. 7. Russell knitting, wherein a synthetic resin fiber yarn having a core-sheath structure whose peripheral surface is coated with a low melting point resin is used as a warp yarn, and a yarn of the same quality as the warp yarn or a normal synthetic resin fiber yarn is used as a weft yarn. Is a net made of synthetic resin fiber yarn in which the intersection points of the Russell knitting are joined by heat welding, and at least one of the front warp yarn, the middle weft yarn, and the back weft yarn is It has a thickness of 50 denier or less, three middle weft threads, each of which is a front warp thread with a predetermined spacing, and each knitted in three jumps from the right to the left, and two back weft threads are used. Each knitting yarn is knitted from left to right for two warp yarns at predetermined intervals, and between the two warp yarns, the three middle weft yarns and the two back weft yarns intersect each other. And then before Yes by coating thermosetting resin to the knitting net, I following, the synthetic resin fiber yarn of the net, characterized in that are to enable pleat molding by heat processing of subsequent.