JPH03104969A - Production of warp-knitting pile fabric such as blanket - Google Patents

Abstract

PURPOSE:To obtain the subject fabric free from generation of files with an excellent productivity at a low cost by using a specified spun yarn as a pile yarn, knitting an interlock fabric, cutting the structure and making a pile. CONSTITUTION:Ravings 7a and 7b are made into a fleece in a region of a roller draft composed of a front top roller 6 and a front bottom roller 5 and twisted by a ring traveler system 8 after passing through the bottom roller 5 to be formed into a doubling and twisting yarn and the resultant doubling and twisting yarn is wound up around a bobbin 9. The resultant spun yarn is used as a pile yarn preferably without application of an oil agent and knitted into an interlock fabric. After cutting the middle part of the interlock structure, opening treatment is carried out, thus obtaining the objective warp-knitting pile fabric.

Description

Detailed Description of the Invention (Field of Industrial Application) The present invention relates to warp-knitted napped fabrics mainly used for blankets, etc., particularly warp-knitted napped fabrics made of cut 7-mile fabric using spun yarn as pile yarn. The present invention relates to a manufacturing method thereof.

(Prior Art) Conventionally, raised fabrics made of warp-knitted cut pile fabrics, which have been suitably used as blankets, etc., are knitted using a double raschel machine exclusively for cut piles having the structure shown in Fig. 3, for example. Using the side reeds (Ll) (L2) and the back side reeds (L4) (L5), insert threads and threads are guided to the front and rear needle beds (1) and (2), respectively, to create the ground texture on the front and rear sides, that is, on the surface IX2. At the same time, the pile yarn (φ) is guided to the front and rear needle beds by the reed (L3) in the center, and the pile yarn (P) is wrapped around the knitting needles (3) and (4) in sequence to knit together with the above-mentioned double ground structure. The pile yarn (p) thus stretched across both the front and back fabrics is cut at the center between the two fabrics to obtain a cut pile fabric, and then the pile is defibrated to form a raised shape. It is used to create raised fabrics such as blankets.

As the pile yarn of the cut pile fabric, in consideration of preventing yarn breakage during knitting, adjusting tension, etc., a so-called double yarn, which is made by twisting two spun yarns of about 52 count, for example, is usually used. There is.

(Problem to be Solved by the Invention) However, when the above-mentioned double yarn used for pile yarn is spun into a single yarn, a large amount of external force is applied to the yarn near the ballooning traveler of the ring spinning machine, resulting in the generation of fuzz. It becomes a thing. If such a single yarn is knitted as is without making it into a double yarn, the fuzz will be welded to various parts of the knitting machine and a large amount of fly (scatted short fibers) will be generated.

Furthermore, if this is made into a double yarn, the amount of flies generated during knitting will be reduced, but the generation of flies during single yarn spinning or twisting will still not be reduced.

Such problems are particularly important for warp knitted products such as blankets. That is, for such uses, the oiling method, which is commonly used for other uses, cannot be used due to the manufacturing process. For this reason, there has been no effective means for reducing fly when spun yarn is used as the pile yarn of knitted fabrics in this field.

The present invention was made with attention to this problem, and by using a specific spun yarn as a pile yarn that is prone to fly, it is possible to reduce the amount of fly generated during the product process and efficiently produce warp knitted nape fabrics. The present invention provides a method for manufacturing.

(Means and effects for solving the problem) The present invention uses spun yarn as a pile yarn to knit a double-sided fabric using a Dubnore Russell machine, and then cuts the pile yarn in the center of the double-sided fabric, Next, in a method for obtaining a warp knitted wool fabric by defibrating the cut pile, two rovings running in parallel are supplied as the spun yarn to a single draft area of a spinning machine, and the bottom roller It is characterized in that it uses a material that is twisted and twisted by the twisting action of a ring traveler mechanism after passing through the ring.

As mentioned above, the warp-knitted fabric referred to in the present invention is fabric that has been knitted using a double raschel machine and then defibrated.
This is a known thing.

What is important in the present invention is to use a specific spun yarn as the A-ile yarn of the warp unevenly napped fabric.

Hereinafter, such a spun yarn will be explained. FIG. 1 is an explanatory diagram showing the spinning arrangement of the spun yarn. In the same figure (5
) is a front bottom roller located in the draft area of a normal spinning machine, and (6) is also a front top roller. The two rovings (7a) (7b) guided to a single roller latt area through different running paths are subjected to draft action in the draft area and become two fleeces running in parallel, and the front bottom roller ( Immediately after leaving the nip point in step 5), it is subjected to the twisting action of the ring traveler machine i (8) and wound onto the bobbin (9) in the form of a twisted yarn. 2 rovings (7
In a) and (7b), if one of the yarns breaks during spinning, the shape of the plied yarn will not be achieved and the effect of the present invention will not occur. It is advisable to monitor the fineness before spinning.

Such a plied yarn becomes a double yarn after passing through the ballooning (11) and ring traveler mechanism (8) only once, so the amount of fried yarn is extremely small, and since each single yarn is twisted, Since it has a shape in which a ply twist is added to the yarn, there is less fuzz in each single yarn, and there is less occurrence of flies during knitting. Therefore, there is no need to use various oils that must be removed after knitting, and in fact, it is preferable to carry out the present invention without using these oils in terms of post-processing efficiency.

In addition, since the plied yarn has an S-twist or 2-twist twist direction as a whole, there is a risk that adjacent yarns may become entangled with each other near the knitting needles. It is preferable that the wrapping direction of the yarn is reversed.

(Example) 4-inch bias-cut acrylic staple fibers are made into 1.4-gelen rovings in the pre-spinning process, and the two rovings are pulled together and wound into cheese to form a roving ball for the spinning process. was created.

Next, the roving balls are set on a creel of a fine spinning bin, and a set of two rovings drawn out is supplied to a single draft area, and a 28-count (worsted type) ) was obtained. Using this as the pile yarn, using a 200 denier 48 filament polyester filament yarn as the chain yarn, and a 340 denier 48 filament polyester filament yarn as the insertion yarn, the knitting structure shown in Figure 2 was created using Mi&Th on both sides.
(using a 16-gauge Kernolemyer machine). Next, the pile yarn was cut at the center between the two ground textures to obtain a warp-knitted pile fabric (A).

After dyeing, heat treating and drying the fabric, it was passed through a five-cylinder single-type needle cloth raising machine for defibration treatment and shirred to produce a final product.

On the other hand, a 14 count single yarn was obtained using a normal spinning method, and this was used as a pile yarn to obtain a warp-knit cut pile fabric in the same manner (opening). Further, the single yarn was made into a 28 count double yarn using a double twister, and this was made into a pile yarn to obtain a warp-knit cut pile fabric in the same manner (c).

The amount of fried material generated when manufacturing these warp knitted cut pile fabrics I Jr. was (a)...0. 5 4 f%
(b)...1. 7 5 f, (c)...0.81
y, and the amount of fried food produced by the method of the present invention was clearly smaller.

(Effects of the Invention) According to the present invention, warp knitted wool fabrics such as blankets can be manufactured while suppressing the occurrence of fries, which greatly contributes to cost reduction. In addition, since there are fewer flies,
The machine is easy to maintain, and productivity can be improved.

[Brief explanation of drawings]

Fig. 1 is an explanatory diagram showing the spinning method of the spun yarn according to the present invention, Fig. 2 is a knitting structure diagram showing an exploded state of lasobbing of the cut 1<ir fabric according to the present invention, and Fig. 5 is an explanatory diagram showing the spinning method of the spun yarn according to the present invention. Fig. 2 is a side view of the main parts of a double russell machine exclusively used for cut piles. Figure 1 Figure 2 L5 L4 L3 L2 L1 Figure 3

Claims (1)

[Claims] (1) Using spun yarn as pile yarn, after knitting a double-sided fabric using a double raschel machine, cut the pile yarn in the center of the double-sided fabric, and then defibrate the cut pile to warp it. In a method for obtaining a knitted woolen fabric, two rovings running in parallel are supplied as the spun yarn to a single draft area of a spinning machine, and after passing through a bottom roller, they are twisted and twisted under the twisting action of a ring traveler mechanism. 1. A method for producing warp-knitted wool fabrics for blankets, etc., characterized by using a warp-knitted fabric.