JPH0215648B2 - - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION <Industrial Application Field> The present invention relates to a method for producing a raised knitted fabric that is bulky and has excellent shape stability, and to a raw knitted fabric suitable therefor.

Conventionally, this kind of raised knitted fabric is obtained by forming the outer surface of the knitted fabric using yarn with excellent raising properties and raising it, but in many cases, it is difficult to obtain a sufficiently bulky fabric. It is difficult to wear, and there are many problems in terms of form stability when handling such as wearing.

<Problems to be Solved by the Invention> The present invention proposes a knitted fabric that is rich in bulk and has good shape stability.

<Means for solving the problems> The present invention consists of a front knitted fabric, a back knitted fabric, and a binding yarn that connects the two, and the binding yarn connects one of the front knitted fabric and the back knitted fabric by a tack. Alternatively, after knitting a knitted fabric in which both are bound and the half-loop length of the binding yarn is 3.0 to 15.0 mm, the binding yarn is raised on the surface where the binding yarn tucks. The manufacturing method of fabrics and the raw knitted fabrics used therein.

The main point of the present invention is to increase the length of the binding yarn and to raise the binding yarn so that it can be drawn out from the front knitted fabric and/or the back knitted fabric. That is, in the present invention, first, the half-loop length of the binding yarn is set to 3.0 to 15.0 mm, and the binding yarn is knitted so as to be tied with at least one of the front and back knitted fabrics in a tack. Use as original cloth. In conventional existing knitted fabrics, the half-loop length of the binding yarn is at most 2 mm, and the length of 3.0 mm to 15.0 mm of the present invention is a completely new area.

FIGS. 2 and 3 are schematic diagrams showing the cross-sectional structure of such raising raw fabrics. The fabric shown in FIG. 3 is one in which only the back knitted fabric 2 is tacked and tied. In the figure, 3 indicates an intermediate layer made of binding yarn, and 1 and 2 indicate knitting yarns for the front knitted fabric and the back knitted fabric, respectively. In this structure, there is sufficient room for the binding yarn in the tuck part, and it exists in a slightly floating form on the front and back knitted surfaces, and the fibers are easily drawn out to the knitted surface by normal raising.

This kind of raw fabric is knitted using a circular knitting machine, for example, by the method of knitting a normal double circular knitted fabric (double knit). To reliably and thickly form an intermediate layer of free binding yarn that is not restricted by the front and back knitted fabrics between the front and back knitted fabrics by increasing the length of the yarn or the length of the knitting yarn involved in binding. Can be done. Specifically, by increasing the distance between the dial and the cylinder, the distance between the front knitted fabric and the back knitted fabric that are knitted in each can be sufficiently widened, and the middle layer that is not restricted by the front knitted fabric and the back knitted fabric can be created. Secure a void so that it can be formed. Furthermore, the front and back knitted fabrics can be joined together using a tuck weave, for example, by using knitting needles that are appropriately lengthened to enable binding between the front and back knitted fabrics and cams that are adjusted to appropriately knit. Note that the binding yarn may form at least one side of the front and back knitted fabrics.

The half-loop length of the binding yarn forming the intermediate layer in the present invention refers to the length of the binding yarn forming the intermediate layer or the knitting yarn involved in binding as shown in FIGS. 4A and B. 1/2 loop length, that is, the length between 7 and 7' and 8 and 8' in FIG.

The above-mentioned half-loop length can be determined by unraveling the knitted fabric and determining the length of the binding yarn. In the present invention, the half-loop length is set as 1 unit, and the length is measured by marking 50 units, and the half-loop length is determined (at this time, the load is 0.1
g/d).

If the half-loop length of the binding yarn is less than 3.0 mm, it will be difficult to raise the nap. This is because if the half-loop length is not long enough, the binding yarn tends to be tied relatively tightly between the front and back tissues. half loop length
When it exceeds 15.0 mm, the knitted fabric itself becomes difficult to withstand the physical stress during the raising operation, causing problems in the stability of the knitted fabric.

In the raw fabric of the present invention, the intermediate layer of the binding yarn has sufficient margin, and the tucked portion of the yarn stands out from the knitted fabric. The knitted fabric is raised, and the main body of the knitted fabric is hardly raised. In addition, according to the raising operation, the binding yarn is pulled out from the knitted fabric, the intermediate layer of the binding yarn is compacted, and the raised fibers are in a state where they penetrate the knitted fabric in the thickness direction. can be used to form a relatively long nap layer.

In the present invention, since the binding yarn constituting the intermediate layer is raised, and the yarn constituting the front and back surfaces is not raised, it is possible to give different functions to the binding yarn and the yarns of the front and back layers. In other words, the material for the binding yarn can be selected with emphasis on napping properties, and the yarns for the front and back layers can be selected with emphasis on the stability of the form of the entire knitted fabric. For example, natural fibers such as wool, bulky spun yarns such as synthetic fibers such as acrylic and polyester, lightly twisted spun yarns, polyester filaments, etc. are used as binding yarns, and processed polyester filament yarns, high shrinkage polyester filaments, etc. are used as the yarns for the front and back layers. It is effective to use In particular, when a bulky spun yarn or a lightly twisted spun yarn is used as the binding yarn, the length of the raised hair produced by raising is long, and a raised surface without unevenness can be obtained. Here, creating a difference in count (thickness) between the binding yarn and the yarn of the front and back layers further contributes to improving the napping properties. By making the threads of the front and back layers thinner and the binding yarn thicker, the efficiency with which the binding yarn is pulled out by the raising needle is improved, and the raising property is improved. The knitted fabric can be subjected to bulking or shrinkage treatment before being raised. FIG. 1 is a schematic cross-sectional view of a raised knitted fabric obtained by the present invention, and 4' indicates raised fibers.

<Actions and Effects> According to the present invention, a raised layer is formed by raising only the binding yarns without significantly damaging the front and back knitted fabrics, and the raised fibers penetrate the knitted surface in a vertical direction. Moreover, the knitted fabric is compacted by the binding yarns during raising, but the structure of the front and back knitted fabrics is reduced because the binding yarns form an intermediate layer that stands upright between the two fabrics. is stabilized, and a bulky and elastic napkin for cold protection etc. can be obtained.

Example 1 Polyester filament false-twisted yarn 150d 48f was used to form the front knitted fabric and back knitted fabric, and 1/24 bulky spun wool yarn was used as the binding yarn, and the gap spacing of the circular knitting machine was adjusted. Set at 8mm (16 gauge, front and back knitted fabrics are cotton jersey, binding thread is tied to front and back knitted fabrics by tucks)
When knitted, the half-loop length of the binding yarn was 5.5 mm, and the weight of the knitted fabric was 800 g/m2. When this was dyed and raised on both the front and back sides, only the wool of the binding yarn was raised, resulting in a double-sided raised knitted fabric with a very thick and long pile.

Example 2 Polyester filament false twisted yarn 75d 24f was used to form the front knitted fabric, 20/1 cotton was used to form the back knitted fabric, and 1/40 bulky spun acrylic yarn was used as the binding yarn. Circular knitting machine 20 gauge spacing
Set at 10mm, connect the front and back knitted fabrics to the jersey, and connect the binding yarn to both the front and back knitted fabrics with tucks. The knitted fabric thus knitted had a weight of 720 g/m2 in which the half-loop length of the binding yarn was 7.0 mm. After dyeing this, when the polyester side was raised, only the acrylic binding yarn was raised, resulting in a single-sided raised knitted fabric with long piles.

[Brief explanation of drawings]

FIG. 1 is a raised knitted fabric obtained by the present invention, FIGS. 2 and 3 are schematic diagrams showing cross sections of raw fabrics for the raised knitted fabric, and FIG. 4 is a raised raw material for the raised knitted fabric of the present invention. 1 is a diagram for explaining the half-loop length forming an intermediate layer in a knitted cloth, 1 is a front knitted fabric, 2 is a back knitted fabric, 3 is an intermediate layer, 4 is a binding yarn, and 5 and 6 are each a front knitted fabric. Knitting yarn, purl yarn, and 4' indicate raised fibers.

Claims (1)

[Claims] 1. Consisting of a front knitted fabric, a back knitted fabric, and a binding yarn that connects the two, the binding yarn is bound to one or both of the front knitted fabric and the back knitted fabric by a tack, A method for producing a raised knitted fabric, which comprises knitting a raw knitted fabric in which the half-loop length of the binding yarn is 3.0 to 15.0 mm, and then raising the binding yarn on the tacking surface of the binding yarn. 2. The method for producing a raised knitted fabric according to claim 1, wherein the binding yarn is a bulky spun yarn or a lightly twisted spun yarn. 3 A three-layer knitted fabric consisting of a front knitted fabric, a back knitted fabric, and a binding yarn that connects the two, in which the binding yarn is connected to one or both of the front knitted fabric and the back knitted fabric by a tack. A raised knitted fabric characterized in that the half loop length of the binding yarn is 3.0 mm to 15.0 mm. 4. The raised knitted fabric according to claim 3, wherein the binding yarn is a bulky spun yarn or a lightly twisted spun yarn.