JPS59173357A - Raised warp knitted fabric - 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 napped warp knitted fabric. More specifically, the present invention relates to a special napped warp knitted fabric knitted by a warp knitting machine suitable for car mats used as automobile interior materials, door trims, car mats for general interior use, hot carpets for heat insulation, etc. Regarding.

PRIOR TECHNOLOGY Conventionally, in the above-mentioned product fields, tufted carpets produced by tufting machines have been the mainstream.However, tufted carpets require a primary base fabric, so they are very heavy.
It does not have the stretch recovery properties of a fabric, and the performance of the processing process due to tuft truss is poor, so it cannot be said that it has the performance that should fully satisfy consumers.

As a result of intensive studies to eliminate the drawbacks of the conventional tufted carpet, the inventor of the present invention has created a special raised pile structure using a warp knitting machine, thereby eliminating the drawbacks of the tufted carpet. The inventors have discovered that it is possible to obtain a raised pile structure with a nice texture, and have arrived at the present invention.

On the other hand, it has been known to produce napped and yarn fabrics using warp machines. Conventional pile machines using warp knitting machines include lining pile, circular pile, and cut/gloss pile. For split fabric A'ile, after knitting, the back side of the knitted fabric is raised to create a pile shape, or 7% M, the tension of the inner fleece reed is made as low as possible, and the fleece yarn is loosened to create a pile shape. It is something to do. Therefore, fleece i'? With the pile, the loop length of the pile was very short, making it difficult to adjust the tension, and it was 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 rigs, either knife needles are used to produce the yarn, or the i+ tile yarn is knitted on both the front and rear needle beds of a two-row needle bed warp knitting machine, and the no-no-ile yarn is knitted in the center of both needle beds. Cut and manufacture. Therefore, a normal warp knitting machine cannot knit the cut .

OBJECTS OF THE INVENTION An object of the present invention is to provide a napped warp knitted fabric having napped/rubbed features of any length that can be knitted on a warp knitting machine without using any special equipment. .

Structure of the Invention The napped warp knitted fabric according to the present invention is a warp knitted fabric consisting of a ground knitted fabric and a glossy knitted fabric knitted by a warp knitting machine having a single row needle bed,
The ground knitted fabric consists of a chain stitch and a knitting structure that connects the chain stitch in the course direction, and a thin part extending in the sirael direction is formed by feeding the ground yarn to the knitting needles at an interval of at least one stitch. .

On the other hand, a yarn with a thickness of at least three times the thickness of the ground thread and a thickness of 600 denier or more is used as the pile thread, and the thread is knitted or inserted into the chain stitch of the ground knitted fabric. A pile is formed in the thin part of the ground knitted fabric, and at least 20% of the total number of single fibers constituting the pile yarn of the warped fabric is in the form of a cut pile. In this case, it is preferable that at least 20% of the total number of single fibers constituting the pile yarn in all areas per square inch of the warp knitted fabric are in the form of cut twill.

The ground knitted fabric is knitted using at least two reeds and the ground yarns are fed to the knitting needles with an interval of at least one stitch. In this case, the ground threads supplied from at least one reed form a chain stitch with an interval of at least one stitch, and the ground threads supplied from at least one reed of the remaining pieces form the chain stitch in the course direction. By connecting them, the free-standing area of the napped warp knitted fabric of the present invention is formed.

In addition, in the present invention, the pile yarn that forms the pile must have a thickness that is at least three times that of the ground yarn and at least 600 denier, and if it is less than three times the thickness of the ground yarn, the weight ratio of the ground knitted fabric is This increases the overall basis weight of the raised warp knitted fabric of the present invention. If the pile yarn is less than 600 denier, the pile will not stand up well and the pile will fall down, reducing the product value for deer mats, door trims, and general carpets.

The type of ground yarn and yarn used in the present invention is not particularly limited, but long fiber yarns of synthetic fibers are preferable for the ground yarn, and A? Pile yarn Synthetic fiber yarns are preferably crimped to increase the pile coverage on the surface of the knitted fabric. The thickness of the single fibers forming the pile yarn is preferably 8 denier to 30 denier in order to make the glossy yarn stand upright, and the number of single fibers forming the pile yarn is 40.
Preferably, the number is from 1 to 220.

In the napped warp knitted fabric of the present invention, as described above, the pile yarn is connected to the chain stitch portion of the ground knitted fabric by knitting or insertion,
Pile formation in the thin fabric portion is performed by supplying the pile yarn to knitting needles that do not knit the base yarn and overlapping the yarn. In this case, it is preferable that the supply of the pile yarn to the knitting needles that do not knit the base yarn is carried out at intervals of one or more rows. Next, the head of the loop pile is cut or harvested with a knife or the like, thereby forming a section of the loop pile in the form of a cut pile. Generally, a method using a shearing device is preferable for cutting the head of a loop pile in terms of productivity and stability of quality, but it may also be carried out on a warp knitting spool by using a special knitting needle equipped with a blade.

In any case, it is necessary that 20% to 100'% of the total number of single fibers that make up the yairu gekimi have been cut or pruned into the form of kantono or il, and at least 20%.
must be cut or pruned. Since more than 20 piles of single fibers have been cut and opened, the local area that was visible between individual piles will be obscured.

In order to obtain uniformity on the surface of the warp knitted fabric that supports the shape of the cut pile, at least 20 of the total number of single fibers constituting the pile yarn should be used in all areas per square inch of the warp knitted fabric. % is preferably in the form of a cut.

In addition, in order to increase the commercial value of the raised warp knitted fabric of the present invention, the number of connected yarns between the ground knitted fabric and the pile yarn is in the range of 1 to 4 in the course direction and in the range of 3 to 10 in the wale direction per centimeter. It is preferable that To obtain a napped warp knitted fabric with increased coverage of the pile surface by the pile yarn,
An appropriate pile density is required, and a range within the above-mentioned number of connections corresponds to this appropriate pile density.

EXAMPLES Hereinafter, the raised warp knitted fabric of the present invention will be explained in detail with reference to the accompanying drawings. In order to clarify the structure of the napped warp knitted fabric of the present invention, a method for manufacturing the napped warp knitted fabric of the present invention will also be described.

FIG. 1 is a diagram showing the structure, threading state, and chain link combination of a napped warp knitted fabric in an embodiment of the present invention. The ground yarns 11 and 12 constituting the ground knitted fabric are respectively reed B1. Thread B2 in a state of -.-7 sets, while threading a half set of the threads 11 and 12 forming the loop pile into the reed B3 with the ground threads 11 and 12 being deviated from each other. For the sake of explanation, the knitting needles arranged in the first row of needle beds are alternately marked with a symbol a.

I marked b.

The ground yarn 11 is fed to knitting needle a, and 1-2/2-1 wrapping is repeated to knit a chain stitch (the chain link shown on the right side of Figure 1 is 3 tempo). ). The base yarn 12 is also supplied to knitting needle a, and 1
-1/6-6 wrapping is repeated and inserted @ (inlay edition). Each chain stitch using the ground thread 11 is connected to each other by an insertion stitch using the ground thread 12 to form a ground fabric.
In the (1) course, the pile yarn 13 is fed so as to be inserted into the knitting needles a for knitting the ground knitted fabric. In this case, the pile yarn 13 is once shuffled past the insertion folding position (wrapping position 3) to the wrapping position 1, and then returns to the folding position 3. After the pile yarn 13 returns to the wrapping position 3, the ground yarn 11 overlaps the knitting needle a, and at the same time, the insertion reed B3 swings idle. After that, knitting needles a and b perform knockover f:.

Excessive jogging of the pile yarn 13 past the insertion turn-back position as described above is intended to draw out excess pile yarn from the supply package of the pile yarn 13 to aid in forming a loop pile. In the above case, the pile yarn 13 is not connected to the ground yarn 11 between the wrapping position 1 and the wrapping position 3.

In the second (2) course, the pile yarn 13 overlaps (
In step 6-5), the needles are fed to the knitting needles that do not form a ground knitted fabric. In the (3rd) course, the pile yarn 13 is supplied to knitting needle a to perform insertion knitting. At this time, jog past the other wrapping position (wrapping position 8) and once reach wrapping position 9,
Then, return to wrapping position 8 and idle swing at that position.

After that, knitting needles a and b perform knockover. In this case, the pile yarn 13 supplied to the knitting needles in the (2) course
is held in the hook of the knitting needle before the knockover, but since the pile yarn 13 is not supplied to the knitting needle in the third course, it is not held in the hook of the knitting needle when the knockover occurs. The yarn 13 that was being held comes off the hook, that is, it comes off the knitting needle, and the loop pile 14
form.

In the fourth course, the pile yarn 13 overlaps (
In step 5-6), the knitting needles are fed to the knitting needles that do not form a ground knitted fabric. In the next (5) course, insertion knitting is performed in the same manner as in the (1) course. At this time, the yarn 13 supplied to the knitting needle in the (4th) course comes off the knitting needle and becomes a loop pile 14. The same knitting operation is repeated thereafter. As a result, loop piles 14 are formed at every stitch, and at every stitch (2), (4), (6), and (8) courses, and at every stitch (1), (3), and (8). ), A in the (5th) and (7th) courses? The pile warp knitted fabric 3 is connected to the sinker loop of the ground knitted fabric by insertion knitting, and the pile warp knitted fabric of the present invention is obtained.

Although FIG. 1 shows an example in which the loop pile 14 is formed every other stitch and every other course, this may be changed as appropriate depending on the desired shape of the pile. For example, if the knitting needles for knitting the ground knitted fabric are used every 1 to several courses, and the pile yarn is supplied to the knitting needles for knitting the ground knitted fabric every 2 to several courses. It can be formed every few stitches and every two to several courses.

In addition, as for the method of connecting the pile yarn to the ground knitted fabric, if the head of the loop pile is cut off before dyeing, the thread for the pile should be knitted and ground knitted in order to prevent the pile from falling out during the dyeing process. It is sufficient to connect it to the ground, and when the head of the loop pile is cut off after dyeing, insertion connection is preferable because it can reduce the basis weight of the resulting raised warp knitted fabric.

FIGS. 2 and 3 are diagrams showing examples of side model views of the napped warp knitted fabric of the present invention. FIG. 2 is a diagram in which the head of the loop pile 14 has been cut to reveal cut pile-like single fibers shown in 15. FIG. 3 shows an example in which the head of the high loop pile of a warp knitted fabric having high and low loop piles is completely trimmed. In this way, by making at least 20% of the total number of single fibers constituting the nine pile yarn per square inch of knitted fabric into cut pile form, the coverage of the pile surface by the pile yarn can be improved. This makes it possible to obtain products that are lightweight, have a soft feel, and are ideal for car mats, general carpets, and the like.

Below, several experimental examples of the napped warp knitted fabric according to the present invention will be shown.

(a) Using a warp knitting machine with one row of needle beds and a knitting machine with a specification of 14 threads/inch, the ground yarns 11 and 12 are made of 140 denier nylon, knitted with knitting needles a in the structure shown in Figure 1. /2
Pile yarn 13 for weaving 4 filament yarns with knitting needles
A bulky nylon 1200 denier/64 filament yarn was used and knitted with the following texture.

Ground thread 11 = 10101 (1inX1out) Ground thread 12 =
00155 (11nX1 out) No 7 Iru Tsukimi 1
3=22154/77/45 (1 out The number of connections between the ground knitted fabric and the pile yarn was set to 3 in the 9-course direction and 5 in the wale direction per 1 cm of the knitted fabric.

The obtained loop/guille warp knitted fabric was dyed in a rope state at 100°C for 60 minutes using a jet dyeing machine, and finished and set by dry heat at 150°C for 60 seconds. Next, the knitted fabric was set on a shearing machine and the cutting depth was set to 0.5 rra to trim the head of the loop pile. The resulting raised warp knitted fabric has a basis weight of 350
It has a low basis weight of & / m2, which is impossible with conventional tufting machines, and the single fibers that make up about 50% of the pile yarn are in a napped form, and the pile surface is covered by the napped pile yarn. This product is perfect for car mats and carpets that have a very cozy feel.

(b) Using a warp knitting machine with a 1-row needle bed and a specification of 14 threads/inch, with the structure shown in Fig. 4, nylon 70 denier/24 filament yarn is used as the ground thread 11, and the ground thread 12 is Nylon 140 denier/36 filament yarn was used for the pile yarn, and nylon 1200 denier/60 filament bulky yarn was used for the pile yarn, and knitted with the shake structure shown below.

Ground thread 11=21/12 (1inX1out) Ground thread 12=
11/44 (1inX1out) Pile thread 13=11
/23/44/32 (lin cutting out) At this time, ground thread 1
The runner length of yarn 1 is 1920+nm/rack, the runner length of ground yarn 12 is 3460 mm/rack, the runner length of pile yarn 13 is 2250 mm/rack, and the driving density is 1
It was set at 1 course/crn.

The pile warp knitted fabric was dyed at 100°C6 using a diazid acid dye (manufactured by Mitsubishi Kasei) in a large wince dyeing machine.
Dyeing was performed in a spread state for 0 minutes, and finishing setting was performed using a dry heat setter at 150'C for 60 seconds. The obtained knitted fabric has a height of 3
．． It is a lightweight warp knitted fabric with a weight of 300 g/m2 and a low weave. Next, use a shearing machine to trim the head of the loop pile to approximately 30% No.9
The number of monopolar fibers that make up the Ilgemi keeps the loop and the remaining shift is 0.
% is a product with piloerection.

(C) A warp knitting machine having a single row needle bed with a specification of 14 needles/inch was used to knit the knitting structure shown in FIG. 5. At this time, nylon 100 d/24f thread was used for ground thread 1, and nylon 140 d/36 f thread was used for ground thread 12.
For the pile yarns 13 and 13', bulky processed nylon yarn of 1400 d and 150 f was used. The ground thread 11 has a 1-out, 1-in thread arrangement, the ground thread 12 has a 1-in, 1-out thread arrangement, and the base thread 13 has a 3-out thread arrangement of 1 in, 1 out, 1 in, 1 out, 1 in, 7 out", hereinafter ""
Repeat, 13 pile threads, 2 out, 1 in, 7 out, ``1 in, 1 out, 1 in, 1 out, 1 in, 7''
"Out", hereinafter "", was repeated. When knitting with the above yarn arrangement, the runner length of the ground yarn 11 of reed B is set to 1
890mm, runner length of ground thread 12 of reed B2 is 3620
The runner length of the pouch B3 was set to 3400 mm, and the runner length of the pile reed B4 (D runner length was set to 1800 mm).The obtained knitted fabric was dyed in the same manner as shown in the above experimental example (,). Finished. After dyeing, the No. 4 Ill warp knitted fabric has 4 on the surface.
．． It is a pile warp knitted fabric with a pile height of 5 wn and a pile height of 20 wn, and a fabric weight of 360 g/m2 with an uneven pattern effect.

By trimming the head of the high loop pile of 4.5 cm in this loop pile warp knitted fabric, a high-cut, low-file napped warp knitted fabric is created as shown in the model diagram in Figure 3. Obtained.

Effects of the Invention The napped warp knitted fabric of the present invention has good dimensional stability because the ground knitted fabric performs the same function as the primary base fabric without using a primary base fabric like a tufted carpet, and is extremely lightweight.・Yaile knitted fabric is strong. In addition, since it is basically entirely composed of a warp-knitted loop structure, it has excellent stretch recovery properties, which is a characteristic of knits, making it a car mat.

When used in automotive interior materials that require three-dimensionality, such as door trims, it exhibits flexible functionality and greatly improves molding performance.

Further, in the raised warp knitted fabric according to the present invention, as described above, the pile yarn is connected to the chain stitch part of the ground knitted fabric to form a twill in the thin part of the ground knitted fabric, and the pile yarn of the warp knitted fabric is connected to the chain stitch part of the ground knitted fabric. At least 20% of the total number of single fibers in the composition are cut i
Since it has a 9 pile configuration, the ground knitted fabric that was visible between the 9 individual piles is covered up by the napped pile yarns, resulting in a warp knitted fabric with a rich sense of kireem, which is different from the conventional tact machine. It can be used as a car mat with a low basis weight that cannot be obtained with ordinary car mats.

[Brief explanation of drawings]

Figures 1, 4 and 5 show examples of organization charts for knitting the napped warp knitted fabric of the present invention, and Figures 2 and 3 are examples of side model diagrams of the napped warp knitted fabric of the present invention. shows. a, b...Knitting needles, (1) to →...Course display, 1
~1゜... Chain link number, 11... Ground yarn for chain stitch, 12... Ground yarn for chain stitch connection, 13, 13'...
Pile thread, 14...Roof' No. 9 Ile, 15.
... Raised pile, 16... Chain knitted part, 17... Thin part of ground knitted fabric, B1... Back reed, B2... Middle reed, B3...
・Pre-liquid. Patent Applicant: Asahi Kasei Kogyo Co., Ltd. Patent Application Agent Akira Aoki Patent Attorney Kazuyuki Nishidate Patent Attorney Akira Yamaguchi B1 ・ 1 ・ l ・ 1 ・ 11 B2 ・ 1 ・
Minister I・1・I B3 l ・ 1 ・ 1 ・ 1 ・ 1 ・Figure 2Figure 3Figure 1b lb
l/Figure 4 121 324 3 2 1 B34 3 2 1 B1 ・1・1・l B2 ・1・1・I B3 ・1・1・1 Figure 5 21 7 4 654321 7 t3

Claims (1)

[Claims] 1. A warp knitted fabric consisting of a ground knitted fabric and a pile knitted by a warp knitting machine having a single row needle bed, the ground knitted fabric being a knitted fabric consisting of a chain cap and a knitting structure connecting it in the course direction. , and by feeding the ground yarn to the knitting needles at intervals of at least one stitch, a thin fabric portion extending in the sirae direction is formed;
On the other hand, a pile yarn having a thickness of 600 denier or more and three times the thickness of the ground yarn is connected to the chain stitch portion of the ground knitted fabric by knitting or insertion. A pile is formed in the thin portion, and at least 2 of the total number of single fibers constituting the pile yarn of the warp knitted fabric
A raised warp knitted fabric characterized by 0% being in the form of cut pile. 2. Claim 1, characterized in that at least 20 of the total number of single fibers constituting the pile yarn in all areas per square inch of the warp fabric are in the form of cut pile. Napped warp knitted fabric as described in section. 3. The number of the yarns connected to the ground knitted fabric is 1 to 4 in the course direction and 3 to 10 in the wale direction per centimeter of the warp knitted fabric. The raised warp knitted fabric according to claim 1 or 2, characterized in that: