JPS59173356A - Pile warp knitted fabric and its manufacturing method - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION Technical Field The present invention relates to a warp knitted fabric and a method for manufacturing the same. To be more specific, the present invention is a special material made of a warp machine suitable for car mats used as automobile interior materials, door trims, general interior carpets, heat-retaining hot carpets, etc. This invention relates to a knitted fabric and a manufacturing method thereof.

BACKGROUND OF THE INVENTION Conventionally, in the above-mentioned product fields, tufted carpets produced by tufting machines have been the mainstream. However, since tufted carpet requires a primary base fabric, it is very heavy, has no stretch recovery properties as a fabric, and has difficulty in processing performance due to tufted truss snaking, so it is not necessarily sufficient to satisfy consumers. It could not be said that it had good performance.

As a result of intensive study to eliminate the drawbacks of the conventional tufted carpet, the present inventor decided to create a special pile structure using a warp knitting machine, thereby obtaining a pile structure that eliminates the drawbacks of the tufted carpet. They discovered this and arrived at the present invention.

On the other hand, it is conventionally known to produce a nofile fabric using a warp knitting machine. Conventional pile knitting using a warp knitting machine involves lining and knitting.
There are mother pile, circular pile, and cut pile. Lining pile is made by raising the back side of the knitted fabric after knitting to create a pile shape, or by reducing the tension of the fleece reed as much as possible during knitting and loosening the fleece yarn to create a pile shape. . Therefore, with the fleece A' pile, the loop length of the pile is very short, making it difficult to adjust the tension and making it difficult to use thick fleece yarn. In the case of a loop or coil, it cannot be knitted without using a loop drawing device or point needle. Therefore, it cannot be knitted using a normal warp knitting machine that is not equipped with such special equipment. In the case of cut and pile, either knife needles are used to produce the yarn, or the yarn is knitted on both the front and rear needle beds of a two-row needle bed warp knitting machine, and the pile yarn is knitted in the center of both needle beds. Manufactured by cutting. Therefore, cut piles cannot be knitted using ordinary warp knitting machines.

Purpose of the Invention The purpose of the present invention is to create a lightweight knitting machine that can be knitted on a warp knitting machine without using any special equipment. It is an object of the present invention to provide a special tsquill warp knitted fabric having an excellent sense of volume, and to provide a method for producing the pile warp knitted fabric.

Structure of the Invention The pile warp knitted fabric according to the present invention consists of a ground knitted fabric formed by ground yarn, and an i4 pile and ground knitted fabric formed by quill yarn. Since the ground yarns are knitted with an interval of at least one stitch, a thin portion extending in the wale direction is formed in the ground knitted fabric. On the other hand, the pile yarns are arranged at equal intervals, one for each thin section at least, and are connected to the ground knitted fabric by insertion or knitting, and the threads for piles are arbitrarily arranged in the thin section. It is formed.

The pile yarn used here needs to have a thick denier of 1500 deniers or more, and a more preferable denier range is 2000 deniers to 4400 deniers. When it is 4,400 denier or more, it is difficult to produce it stably at high speed with a normal warp knitting machine, although it depends on the size of the machine, and the pile surface does not have a feeling of tightness, which is not desirable as a product. Again 1
If the denier is less than 500 denier, the coverage of the pile surface by the pile layer will decrease, resulting in the occurrence of ground spots and a decrease in the quality of the pile knitted fabric. Sufficient A'il compression resistance and recovery force cannot be obtained. Therefore, in order to obtain a pile knitted fabric with a high coverage of the pile surface by the pile yarn, a high-quality polymer feel, and a good pile compression elastic modulus and compression recovery rate, the above-mentioned 15.
00 denier or more, preferably 2000 denier to 4
It is necessary to use Nonoir Tsukimi in the 400 denier range.

On the other hand, the thickness of the base thread may be selected as appropriate for the target product, and is not particularly limited.

- The threads for yarns are arranged at equal intervals in the course direction at a ratio of one thread to at least two thin fabric portions extending in the wale direction formed on the ground knitted fabric. This is 150
If pile threads with a thickness of 0 denier or more were placed at a ratio of one thread to each thin fabric part, the coverage of the pile surface would be too high due to the problem. The intended purpose of reducing weight due to high basis weight could not be achieved.

Furthermore, if there are fewer pile yarns in the excess compared to the number of thin fabric parts, the coverage rate will decrease. Therefore, it is preferable to arrange one pile thread for two to four thin fabric parts.

In the warp knitted fabric of the present invention, the connection of the threads (to the ground knitted fabric) by the ground yarns may be either knitting or insertion. Ta,
If the pile yarn formed by the pile yarn remains in a loop shape, connection by insertion is preferable, and in this case, the pile effective utilization rate of the i4 pile yarn will be close to 100%. On the other hand, when cutting the tip of the Ruso/4 tile with a knife or the like to form a cut pile, it is preferable that the 1, f pile be connected by knitting to prevent the pile from falling out. The l? which is connected to the ground knitted fabric in this way? 4ru for Itozuki Mino + Iru or l? Either one of the ground knitted fabrics is formed with an interval of at least one course in the thin fabric portion. If we look at this in the wale direction for one thin fabric part, we can see that the twill and ground knitted fabric made of pile yarn are formed in an arbitrary arrangement.

In the present invention, the yarn type used may be natural fibers, synthetic fibers, recycled fibers, or filamentous forms.
It may be a spun yarn, a long fiber yarn that has been subjected to a bulking process, or a long fiber yarn that has not been subjected to a bulking process. There are no particular restrictions on the yarn type or yarn form. However, in order to improve compression elasticity, compression recovery, and coverage of the pile surface by the pile yarn, thermoplastic synthetic fibers that have been bulk-processed are preferable, with a single yarn denier of 5 deniers or more.
Good range power of 30 denier.

The method for manufacturing the pile warp knitted fabric of the present invention is as follows. That is, it is used in a warp knitting machine having a single row needle bed, and the ground yarn is fed to the knitting needles at intervals of at least one needle, preferably 1 to 3 needles, for knitting. At this time, the ground yarn is guided to the knitting needles by one or more reeds to form a ground knitted fabric, but from the viewpoint of dimensional stability, two
It is desirable to form a ground knitted fabric using 1 to 3 reeds.

Furthermore, by knitting the ground yarns with at least one needle interval, a thin part extending in the wale direction is formed in the ground knitted fabric.

Next, the yarn for giling is supplied to the ground knitting knitting needles at equal intervals at a ratio of one thread to at least two ground knitting knitting needles, and is connected to the ground knitted fabric by the ground thread by insertion or knitting. , a pile or ground knitted fabric is optionally formed in the thin fabric portion at intervals of at least one course. Thus, the present invention
A warp knitted fabric is obtained.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a diagram illustrating a detailed explanation of the present invention with reference to the accompanying drawings. The ground yarns 11 and 12 constituting the ground knitted fabric were each coated with the preliquid B1. The threads are threaded through the middle reed B2 in a 1-in-1-out state, while the pile yarn 13 forming the A pile is threaded into the rear reed B3 in a 1-in-3-out state. The knitting needles arranged on the first row needle bed are marked with symbols a and b for explanation. The knitting needle a is used to knit the base threads 11 and 12 and the zoil thread 13, and the kasuri needle is used for knitting the base threads 11, 12 and the zoil thread 13. It is used to form Lulami 4 Il in Il month 13.

The ground yarn 11 is fed to knitting needle a, and the wrapping of ■-[F]/■-■ is repeated to knit a chain stitch (the chain link shown on the right side of Fig. 1 shows the case of 3 tempo). ing). The ground yarn 12 is also supplied to the knitting needle a and ■-■
/■-■ is knitted while forming the thin part of the ground knitted fabric. Each course will be explained below.

In the (1) course, ground thread 11.12 and yarn for yarn 1
3 overlaps knitting needle a. At this time 4
Since the Irugekimi 13 is knitted together with the ground yarn, it is connected to the ground knitted fabric while forming a loop.

In the (2) course, the pile yarn 13 is fed across the thin fabric portion formed between ■ and ■ to the knitting needles between ■ and ■ to perform overlapping. At the end of the second (2) course...the pile yarn 13 forms a ground knitted fabric in the thin fabric portion between C10.

In the (3rd) course, the pile yarn 13 is 0. ■Knitting needle a in between
It is knitted together with the ground yarns 11 and 12 and connected to the ground knitted fabric. At the end of the (3) course, the pile yarn 13 held in the knitting needle hook in the (2) course is released, and ■
The thin part between , and ■ forms a .

In the (4)th course, the pile yarn 13 is fed across the thin fabric portion between ■ and ■ to the knitting needles between ■ and ■, overlapping it. In the example shown in Figure 1, from the (1) course to the (
4) The course is one systematic cycle, and this cycle is repeated after the (5) course.

The above is a description of the operation of one piece of yarn, but it goes without saying that in this case, the pile yarn repeats the same operation for one piece of yarn in two thin areas. The obtained pile warp knitted fabric is shown in FIG. 2 as a model in a perspective view. A plan view of the warp knitted fabric is shown in FIG. 3. In FIGS. 2 and 3, the hatched areas are piles, and the dotted areas are ground knitted fabrics made of pile yarns.

If the nogile warp knitted fabric of the present invention is knitted using the knitting structure shown in FIG. 4, a motherboard warp knitted fabric having the appearance shown in FIG. 5 can be obtained.

Experimental examples of warp knitted fabrics according to the present invention will be shown below.

A warp knitting machine having a single row needle bed and a number of needles of 14/inch was used to knit the knitting structure shown in FIG. 1. At this time, nylon long fiber 420 d/68 is used for ground thread 11.12.
As the yarn 13 for the nogile f, a yarn obtained by bulking nylon long fibers of 3150a/x80f was used. The runner length of the ground thread 11 was set to 2400 tran/rack, the runner length of the ground thread 12 was set to 4200 m/rack, the runner length of the i4 ile thread 13 was set to 3000 (turn)/thick, and the driving density was 1.
It was set as 0 course/cnl. As shown in Figures 2 and 3, the obtained warp knitted fabric has a good coverage of the pile surface by the pile yarn, and has a basis weight of 450 g/m, which is extremely lightweight compared to the conventional tufted nogile fabric. Moreover, it has a novel appearance with excellent compression elasticity and compression recovery.

Effects of the Invention The pile warp knitted fabric thus obtained has good dimensional stability and is extremely lightweight, as the ground knitted fabric performs the same function as the primary base fabric without using a primary base fabric like a tact carpet. It becomes a J-ile knitted fabric. In addition, since it is basically constructed entirely of a warp-knitted loop structure, it has excellent elongation recovery, which is a characteristic of knits, and has a flexible function when used in automobile interior materials that require three-dimensionality, such as car mats and door trims. The molding performance is greatly improved.

In addition, the thick 4-way warp knitted fabric according to the present invention is not only used as a pile but also arbitrarily knitted as a ground knitted fabric, so there is no ground sagging feeling of a pile knitted fabric, and it is lightweight and novel. It has a unique appearance and features excellent "t" Jz-me feel, compressive elasticity, and elastic recovery.

Furthermore, according to the method of the present invention, a pile warp knitted fabric can be produced using a normal warp knitting machine with a single needle bed without using a special warp knitting machine. In addition, since no special operation is required to form the loops, it can be knitted at the same speed as normal warp knitted fabrics, resulting in high production efficiency.

[Brief explanation of the drawing]

FIG. 1 is a tissue diagram of one embodiment of the pile warp knitted fabric of the present invention, and FIG. 2 is a perspective view showing a model of the pile warp knitted fabric obtained with the structure shown in FIG. 1. , Fig. 3 is a plan view of the warp knitted fabric obtained with the structure shown in Fig. 1. υ, Fig. 4
The figure is a tissue diagram of another example of the pile warp knitted fabric (of the present invention), and FIG. 5 is a plane model diagram of the pile warp knitted fabric obtained with the structure shown in FIG. 4. Knitting needles for forming ground knitted fabrics, b...knitting needles for forming gills, (1) to α... course display, ■ to 10... chain link number, 11.12... ground yarn, 13 ...
・Quill thread, 14...Loop quill, 15...
Ground knitted fabric part made of pile yarn. [Phase]■■■■■■■■■ B, l ・ 1 ・ 1 ・ l ・ 1 ・Figure 4 Figure 5

Claims (2)

[Claims] 1. A flat warp knitted fabric knitted on a warp knitting machine with a single row needle bed, where the ground yarns forming the ground knitted fabric are knitted with an interval of at least one stitch, thereby making the ground knitting A thin part extending in the wale direction is formed on the ground, and on the other hand, 15
Pile yarns having a thickness of 00 denier or more are arranged at equal intervals in the course direction at a ratio of one yarn to at least two thin fabric portions, and are connected to the ground knitted fabric by insertion or knitting, No4il or no'? A pile warp knitted fabric characterized by a ground knitted fabric formed by Iruzukimi. 2. When knitting a warp knitted fabric with yarns using a warp knitting machine with a one-row needle bed, the ground yarn is fed to the knitting needles at an interval of at least one needle and knitted in the wale direction. A ground knitted fabric having an elongated thin section is formed, while the pile yarn is fed to the ground knitting knitting needles at equal intervals at a ratio of one for every two ground knitting needles to form the ground knitted fabric by insertion or knitting. The knitted fabric is connected, and the spacing of at least one course is stingy pile or...
A method for producing a pile warp knitted fabric characterized by forming a ground knitted fabric using pile yarn.