JPH01148854A - Net and its production - Google Patents

Abstract

PURPOSE: To obtain a net having a bellows-like crease and knitted with a double raschel machine by arranging vertically long several string-like parts composed of a vertically knitted wale in a longitudinal two rows and binding each string- like part to next two string-like parts with a binding yarn. CONSTITUTION: Longitudinal two rows of string-like part 1 and 2 constituted with a vertically knitted wale are joined by binding yarns 3a and 3b from its one end in turn and made to a bellows-like. This net is obtained by respectively knitting a front string-like part 1 with a front needle bed and a back string-like part 2 with a back needle bed in a double raschel machine and binding the front and back string-like parts in a style of knitting a pile.

Description

[Detailed Description of the Invention] (Industrial Field of Application) This invention is applicable to a+! & In particular, regarding a net that can be knitted using a double raschel machine and its manufacturing method, it has a width much wider than the working width of a warp knitting machine and is suitable as an agricultural shading net, a curing net for construction, etc. It provides a wide net.

(Conventional technology) A double Russell machine is used to manufacture the net.
A method is known in which the front and rear nets are knitted individually on the front and rear needle beds, and the front and rear nets are connected at one end in the width direction to form one net.

(Problem to be Solved by the Invention) However, with the above conventional method, the width of the net that can be obtained is limited to twice the working width of the double Russell machine, and when a net wider than this is required, , it was necessary to add it with sutures.

The present invention provides a net that can be knitted using a double raschel machine, and whose width can be made several times or more the working width of the double raschel machine, if necessary, and a method for manufacturing the same. .

(Means for Solving the Problems) As shown in FIG. 1, the net of the first invention has a large number of vertically long string-like parts 1.2 each made of one or more warp-knitted wales. They are lined up in two rows, front and back, and each string-like part 1 (or 2) is tied to two adjacent string-like parts 2, 2 (or 1.1) in the opposite row with binding threads 3a and 3b, respectively. The binding thread 3 is hung in a zigzag pattern while alternately engaging the needle loops of the two opposing wales of the front and back two wooden string-like parts 1 and 2. It is characterized by being handed over.

The second invention is a method for manufacturing the thread of the first invention, in which the string-shaped parts 1.
The left end wale of the string part 1 of one needle bed is knitted by knitting a large number of yarns 2, and the binding yarns 3a and 3b arranged for each string part are alternately hung on the knitting needles of the front needle bed and the back needle bed. and the needle loop of the right end wale of the left string section 2 of the two adjacent string sections 2.2 on the opposite needle bed, and also the string section 1 of one needle bed. The needle loop of the right end wale is connected to the needle loop of the left end wale of the right string part 2 of the two string parts 2.2 adjacent to each other on the opposite needle bed.

The knitting yarn used for the above-mentioned string portion 1.2 and binding yarns 3a and 3b can be any yarn as long as it can be set on a double raschel machine, but natural fibers, nylon, polyester, polypropylene, etc. , synthetic fiber yarns such as polyurethane elastic yarns, especially filament yarns thereof are preferred.

The structure of the above-mentioned string-like part 1.2 is arbitrary, and for example, one wale chain stitch, reinforcing yarn inserted into this chain stitch, two or several wale chain stitches connected by a zigzag-shaped inserted weft. It is possible to use tricot, 2-wale to several-wale tricot, and the like.

String part 1 on the front needle bed that is tied on the double raschel machine
The string-like portions 1 and 2 on the rear needle bed do not necessarily have to be exactly opposite to each other in the front-back direction, but the string-like portions 1.2 that are diagonally opposite to each other are selected depending on the function of the double raschel machine to be used. be able to.

In addition, a binding thread 3 stretched between the same string-like parts 1 and 2
There may be one a and 3b, or two may be moved in opposite directions and intersect with each other, and their density can be set arbitrarily.

(Function) A net having bellows-like pleats is obtained, which is composed of the string-like portions 1.2 in the vertical direction and the binding threads 3a and 3b in two directions connecting the string-like portions 1.2. However, the holding force of the above folds is due to the elasticity of the binding threads 3a and 3b, so it is very weak.
The folds can be stretched and expanded easily. The width when unfolded is the width of the string part 1.2, the distance between the front and rear string parts 1.2, the length of the transition part of the binding yarns 3a and 3b, and the distance between the front and rear knitting needles of the double raschel machine. In the case of a full set, the narrower the width of the string portion 1.2, the longer the distance between the troughs, and the greater the angle of inclination of the connecting portions of the binding threads 3a and 3b in the front-rear direction, the more the net will be formed. The overall width becomes wider. For example, when the distance between the knitting needles on the front needle bed and the back needle bed is 2 m, and the distance between the front and rear knitting needles (strip spacing) is 10 nm,
Knitting a chain-stitch string-like part 1.2 with each knitting needle, and connecting the two front-side string-like parts 1 and the back-side string-like part 1.2 with binding threads 3a and 3b, these three string-like parts 1. The total width of the net formed in .2.1 is 20fff11. That is, a net with a width of 20 mm is produced for every two strokes of the needle spacing on the front needle bed, in other words, a net with a width 10 times the needle spacing is manufactured.

(Example) Using a double raschel machine with 6 reeds, 22 gauge, working width 1.7 m, polyester multifilament yarn 100 denier, 3
The net of Example 1 shown in FIG. 1 was knitted using 6 filaments. Figure 2 shows the organization chart, F is the front needle bed, B
indicates the rear needle bed.

1st ground thread for every 2 knitting needles for the front needle bed on the 1st reed L1
Supply a and 4-4/4-410-010-O/4-4
Perform the insertion knitting between the two needles of /4-4, supply the second ground yarn 1b to all needles for the front needle bed in the second reed L2, and make O-2/2.
-2/2-010-010-2/2-2 chain stitch was performed to create the front string-like part 1 using the one first ground thread 1a and the two second ground threads 1b. Further, the first binding yarn 3a and the second binding yarn 3b are supplied to the third reed L3 and the fourth reed, respectively, so as to span the front and rear needle beds, and both of them are 0-2.
A tissue for binding of 10-2/2-0/2-010-210-2 was knitted. However, the third reed L3 and the fourth reed L4
The first binding thread 3a of the third reed is removed from both of the threads.
The second binding thread 3b of the fourth reed L4 is tied to the left wale of the front string part 1 (see Fig. 1) of the front string part 1.
It was used to tie the right side wale. In addition, in the fifth reed L5, the third ground thread 2a is arranged on all needles for the rear needle bed, and the threads are 0-010.
-2/2-2/2-010-010-2 chain stitch is carried out, and the 4th ground thread 2b is placed in the 6th reed L6 without one thread for the rear needle bed, and O-4/4-410 -010-O/4-4 insertion knitting between two needles was performed to create the back string-like portion 2 using the two third ground threads 2a and one fourth ground thread 2b. The resulting net is approximately 13m wide when expanded in the width direction.
It has a width of approximately 8, which is the working width of the double Russell machine used.
Next, the same double raschel machine was used, except that the binding threads 3a and 3b were tilted at an angle of about 30 degrees (corresponding to 3 needles) with respect to the front-rear direction as shown in Figure 3. A net of Example 2 was made in the same manner as in Example 1 above. The total width of the net in Example 2 when expanded was about 15 m, which was about 9 times the working width of the double Russell machine.

Next, using the same double raschel machine and knitting yarn as in Example 1, as shown in FIG. 4, a thin chain-knit string 11.
A net of Example 3 was produced, which was made of the following: No. 12 and binding yarns 13a and 13b. Figure 5 shows its organizational chart.
1. Supply the first base thread 11a to all needles for the front needle bed.
-2/2-210-010-0/2-2/2-2 is inserted, and the entire length is also used for the front needle bed on the second reed L2.

Supplying the second ground thread 11b to the needle O-2/2-2/2-0
10-010-2/2-2 chain stitch was performed to knit a one-wale string-like portion 11. Further, one first binding thread 13a and one second binding thread 13b are arranged in the third reed and the fourth reed L4, respectively.

0-210-2/2-0/2-Ol in the first binding thread 13a
The binding tissue of o-210-2 is knitted, the string-like parts 11 and 12 facing each other in the front and back are tied together, and the second binding thread 13b is used to tie the 2-
410-2/4-2/2-0/2-410-2 is knitted with a knitted binding tissue, and the string-like parts 11 and 12 which are inclined by one stitch and face each other in the front and back are bound together. did. Then, in the fifth reed, the third base thread 12a for the rear needle bed is supplied to all the needles to knit a chain of 0-Olo-2/2-2/2-010-010-2, and the sixth 2-210-010-0/2 by supplying the fourth ground thread 12b to all needles for the rear needle bed to reed L6.
-2/2-210-0 was inserted into a one-wale string-like portion 12. The resulting net had a width of 27 m when expanded in one width direction, which was approximately 16 times the working width of the double Russell machine used.

Next, using the same double raschel machine, as shown in FIG. 11.12 were tied together, and the front and rear string-like parts 11.12 separated by 6 needles were tied together using the second binding thread 13b to produce the net of Example 4. The total width of the net in Example 4 when expanded was approximately 28 m, which was approximately 19 times the working width of the double Russell machine.

(Effects of the Invention) The net of the first invention has two rows of string-like parts in the front and back made of warp-knitted wales that are sequentially tied together from one end with a binding thread to form a bellows-like shape. Use the front string-like part on the front needle bed.

It can also be manufactured by knitting the rear string-like parts on the rear needle bed and joining the front and rear string-like parts in the same manner as knitting the pile of a double carpet. Therefore, nets that are significantly wider than conventional nets can be easily obtained.

The second invention is a method of manufacturing the net of the first invention using a double raschel machine, and the width of the string portion (number of wales), the valley, the number of nails to be pulled out, the width of the knotting with respect to the front and rear needles, etc. This allows the total width of the net to be set over a wide range, and when a double raschel machine with a valley of 60 mm, 18 gauge, and reed width of 170 cm is used, and the string-like part is formed into a chain, the width is 85 times the width of the reed. A net having the following values is obtained.

[Brief explanation of the drawing]

FIG. 1 is a perspective view of the first embodiment of the invention, and FIG. 2 is a perspective view of the first embodiment of the invention.
Organization chart of the example, Figure 3 is a cross-sectional view of the second example, Figure 4 is a cross-sectional view of the second example.
The figure is a perspective view of the third embodiment, FIG. 5 is an organizational chart of the third embodiment, and FIG. 6 is a cross-sectional view of the fourth embodiment. 1.2.11.12: String portion, 1a, 1b, 11a,
11b: Ground yarn, 3a, 3b, 13a, 13b: Binding yarn. Patent applicant Toyobo Co., Ltd. Agent Patent attorney Yoshi 1) Tsukasa Ryo

Claims (1)

[Scope of Claims] [1] A large number of vertically elongated string-like parts each made of one or more warp-knitted wales are arranged in two rows in the front and back, and each string-like part is arranged in two rows adjacent to each other in the opposite row. The binding threads are tied to each of the string-like parts of the book, giving it a corrugated or bellows shape as a whole, and the above-mentioned binding threads are connected to the needle loops of the two opposing wales of the two string-like parts at the front and back. A net that is characterized by being strung across in a zigzag pattern while engaging alternately. [2] The net according to claim 1, wherein the string-like portion comprises a chain stitch of a plurality of wales and an insertion thread inserted in a zigzag pattern between the chain stitches. [3] The net according to claim 1, wherein the string portion has a tricot structure. [4] The net according to claim 1, wherein the string-like portion is composed of a one-wale chain stitch. [5] Any one of claims 1 to 4, wherein the lengths of the binding threads extending from one string-like part to two adjacent string-like parts in the opposite row are different from each other. Net listed in. [6] A large number of string-like parts of one or more wales are knitted by the front needle bed and the rear needle bed of the double raschel machine, and the binding yarn arranged for each of the above-mentioned string parts is knitted by the front needle bed and the rear needle bed. The needle loops of the left end wale of the string-like part of one needle bed and the needle loops of the right-end wale of the left string-like part of the two adjacent thread-like parts of the opposite needle bed are alternately hung on the knitting needles of the needle bed. and the needle loop of the right end wale of the string-like part of the one needle bed and the needle loop of the left-end wale of the right-hand string part of the two adjacent string parts on the opposite needle bed, respectively. A method for producing a net characterized by joining.