JPS6158580B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a method for manufacturing pile cloth foil for artificial turf.

Conventionally, looms, knitting machines, etc. have been used to manufacture pile cloth foil for artificial turf, and manufacturing by the former has low productivity, and in the case of the latsiel machine as the knitting means for the latter, Methods of forming pile yarns using a pin needle with a cutter, methods of passing pile yarns through double rows of needles and cutting the passed pile yarns, etc. have been adopted. Since the length is constant and the cut shape is also the same, it was inevitable that the shape and appearance would be far different from natural grass.

The present invention has been made to solve the above-mentioned drawbacks, and its gist is to knit and weave two base fabrics facing each other, and to weave pile yarns, which are introduced from a plurality of yarn systems, between the base fabrics. A pile portion is provided in which the two base fabrics are connected at the shortest distance by the pile yarn guided from at least one yarn system, and the two base fabrics are connected at least four times by the pile yarn guided from the other yarn system. A double connected structure is formed by connecting the warp rows in a diagonal direction across the distance between the two base fabrics, and then dividing the double connected structure into two between the two base fabrics. A pile fabric foil for artificial turf is formed by manufacturing a pile fabric foil in which pile yarns having different pile lengths and different cut shapes are mixed on a base fabric.

Next, an embodiment of the manufacturing method of the present invention will be explained based on the drawings. Fig. 1 shows a double structure in which pile yarns 3 and 4 made of synthetic resin yarns are alternately strung around base fabrics 1 and 2. This is a schematic diagram of a pile fabric foil, in which the pile yarn 3 has the shortest distance portions 3a and 3c between the base fabric 1 and the base fabric 2, and the pile yarn 4 runs from the warp row _w1 to the warp row A double weave is formed by diagonally connecting base fabrics 1 and 2 between six warp rows of _w6 , and in the case of this example, it is knitted and woven by a warp knitting machine with two rows of needles. What is shown in FIG. 2 is a weaving structure chart of the pile yarns 3 and 4 at that time, where F ₁ to F ₂ indicate the course of weaving one side of the base fabrics 1 and 2, and B ₁ to B ₂ indicates the course of knitting the other side,
First, the pile yarn 3 is fixed to the base fabric 1 in the warp row w ₂ in the F ₁ course, and then in the same warp row w ₂ in the B ₁ course.
By fixing the base fabric 2 at
A pile portion 3a is provided to connect 2 at the shortest distance,
Next, in the F ₂ course, it moves one row to the right and is fixed to the base fabric 1 in the warp row w ₃ , so that the pile part 3 _b
In addition, in B ₂ course, base fabric 2 with the same warp row w ₃
By fixing it to the base fabric 2, a pile part _3c with the shortest distance is created, and furthermore, in the _F3 course, by returning to the same warp row _w1 as in the _F1 course and fixing it to the base fabric 2, a pile part _3d is created. Thereafter, by repeating the same knitting machine process, a pile fabric foil having a double structure as shown in FIG. 1 is formed.

In the above pile fabric formation, the number of stitch rows of the pile yarns 3 and 4 is 1/2 of the number of stitch rows of the base fabric, and they act alternately.

The fabric foil with the double structure obtained as described above is cut in the approximate center plane between the base fabrics 1 and 2 shown by the dashed line in FIG. That is.

FIG. 3 is a perspective view of a pile cloth foil for artificial turf obtained by the manufacturing method of this example, and FIG. 4 is an enlarged cross-sectional view of the pile cloth. Yarn 3 is configured as a low pile section,
The pile yarn 4 is configured as a high pile portion, and the pile yarn 3 is configured short between the pile yarns 4,
Moreover, the cut ends of the pile yarns 4 are formed with various orientations, and since they are warp-knitted, they have good drainage and are particularly suitable for outdoor use.

Figure 5 shows another example of knitting and weaving pile yarns, and Figure 1 shows an example of fabric foil formation using pile yarns guided from two yarn systems. is made by guiding pile yarns from three yarn systems, and has a double structure in which three types of pile yarns 13, 14, and 15 are alternately wrapped around the base fabrics 1 and 2, The pile yarn 13 has the shortest distance portions 13 _a and 13 _c between the base fabric 1 and the base fabric 2,
The pile yarns 14 are 6 from warp row w ₁ to warp row w ₆ .
Between the warp rows, the pile yarn 15 connects the base fabrics 1 and 2 in the diagonal direction between the six warp rows from warp row w ₅ to warp row w ₁₀ to form a double weaving process. As shown in Figure 6, the pile yarn 14 is
Starting from the formation of the pile portion 14 _a that connects the base fabrics 1 and 2 between the F ₁ course and the B ₁ course, the pile portions 14 _b , 14 _c , 14 are then alternately applied to the base fabric.
_d is sequentially formed and the pile _portion 14 returns _to the original position _a , and this is repeated to form the pile portion. Starting from forming the connecting pile portion _15a , the base fabric is then alternately acted upon to form pile portions _15b , _15c , and _15d in sequence, returning to the original pile portion _15a , and this is repeated. to form a pile part.

Incidentally, the formation of the pile portion of the pile yarn 13 is the same as that in the embodiment shown in FIG. 1, so a description thereof will be omitted.

In the above-mentioned pile cloth foil, it is possible to express the density difference of the pile threads alternately on the base fabric, and it is possible to clearly express the length and density of the pile.

Furthermore, FIG. 7 shows another example of knitting and weaving, in which the pile yarns are guided by two yarn systems as in FIG. It has a double weave, and the pile yarn 23 has the shortest distance portions 23 _{a and} 23 _c between the base fabric 1 and the base fabric 2, and the pile yarn 24 has the shortest distance portions 23 a and 23 c between the base fabric 1 and the base fabric 2, and the pile yarn 24 has the shortest distance portions 23 a and ₂₃ c between the base fabric ₁ and the base fabric 2. The base fabrics 1 _and 2 are connected diagonally to form a double weave, and the weaving process is as shown in _FIG . , 2, starting from the formation of the pile portion _24a that connects the pile portions _24a , 24b, _24c , _24d are sequentially formed by alternately acting on the base fabric, and the pile portions _24a are returned to the original position. The pile part is formed by repeating this process, and the pile thread 23 is also used as the base fabric 1 and 2 as in the previous embodiment.
This constitutes a pile portion including pile portions 23 _a and 23 _d with the shortest distance between them.

In this example, the diagonally connected pile yarns exist on both the left and right sides, so if the pile yarns are post-processed by brushing etc. after being divided into two along the cut line C, the cut shape will be in an undefined direction. This makes it possible to change the length of the pile yarn as well as the shape of the cut end.

Furthermore, in addition to the embodiments, it is also possible to form both a part connected at the shortest distance and a part connected in an oblique direction by pile yarns introduced from the same yarn system. By doing so, the density can be further changed.

The pile yarn used in the production of the present invention was 15 ^F twisted yarn of flat yarn of nylon yarn.
×210 ^d , but other synthetic resin yarns such as polyethylene and polypropylene may be used as long as they meet the external strength requirements necessary for artificial turf.

As described above, the present invention relates to the production of pile fabric foil for artificial turf, in which two facing base fabrics are knitted and woven, pile yarns are guided to both base fabrics using a plurality of yarn systems, and at least one A double connected structure obtained by constructing a pile part that connects both base fabrics at the shortest distance using one yarn system, and constructing a pile part that connects both base fabrics diagonally using another yarn system. Since it was manufactured by dividing it into two parts between the base fabrics,
The pile yarn can have a mixture of long and short pile lengths in each part, and the shape of the cut end differs depending on the part, so the pile yarn for grass can be made to resemble naturally grown grass. It is possible to efficiently manufacture pile cloth foil for artificial turf containing the present invention.

[Brief explanation of the drawing]

FIG. 1 is a plan view schematically showing a double connected structure formed by the manufacturing method of the present invention, and FIG. 2 is a weaving structure diagram of the pile yarn for forming the double connected structure in FIG. 1. 3 is a perspective view of a pile cloth foil for artificial turf obtained by dividing the double connected tissue in FIG. 1 along the cut line CC, and FIG. FIG. 5 is an enlarged cross-sectional view of a pile cloth foil for artificial turf obtained by dividing the double connected structure into two along the cut line CC, and FIG. 5 shows another example formed by the manufacturing method of the present invention. 6 is a plan view schematically showing a double connected structure, and FIG. 6 is a weaving structure diagram of pile yarn for forming the double connected structure in FIG. 4,
FIG. 7 is a plan view schematically showing another embodiment of the double-connected structure formed by the manufacturing method of the present invention, and FIG. 8 is a plan view of the pile yarn for forming the double-connected structure in FIG. This is a weaving organization chart. In the figure 1, 2...Base fabric, 3, 4, 13, 14, 1
5, 23, 24... pile yarn, 3 _a , 3 _c , 13 _a ,
13 _c , 23 _a , 23 _c ... Pile parts connected at the shortest distance.

Claims (1)

[Claims] 1 Two base fabrics are knitted and woven in a state facing each other, and pile yarns made of synthetic fiber yarns or synthetic resin yarns guided from a plurality of yarn systems are reciprocated between the base fabrics, and at least A pile portion is provided in which the two base fabrics are connected at the shortest distance by pile yarns guided from one yarn system, and the two base fabrics are connected by a distance between at least four warp rows by pile yarns guided from another yarn system. A double connected structure is formed by providing a pile part that is separated and connected in a diagonal direction and crosses diagonally between the base fabrics, and then the double connected structure is divided into two between both base fabrics and is placed on the base fabric. A method for manufacturing pile cloth foil for artificial turf, characterized by manufacturing pile cloth foil in which pile yarns having different pile lengths and different cut end shapes are mixed.