JPS605016Y2 - double-sided knitted fabric - Google Patents

Description

[Detailed description of the invention] The present invention relates to a double-sided knitted fabric consisting of a smooth front side of the knitted fabric and a back side of the knitted fabric with unevenness. Yarns, natural fibers or blended yarns of natural fibers and other fibers are used in the plain stitches of the recesses on the back side of the knitted fabric (hereinafter, both used on the back side of the knitted fabric are collectively referred to as spun yarn).

), and synthetic filament-processed yarn with a fineness thicker than the spun yarn is used as the binding yarn that connects the front and back plain stitches to reduce the amount of fuzz of the spun yarn that is exposed on the front side. This invention relates to a special double-sided knitted fabric with convex portions formed thereon.

Currently, the fabrics that are often used in warm-up suits, training wear, etc. in the sports clothing field are made of synthetic fibers that are resistant to abrasion on the front side, and 100% spun yarn or synthetic fiber yarns that are hygroscopic on the back side. The main materials used are combinations of materials such as cross-knitting of spun yarn.

For example, the material composition of the so-called Motsukuro Day double-sided fabric, which is considered to be the most commonly used, is 100% polyester filament processed yarn on the front side, and polyester filament processed yarn and spun yarn (for example, 50% polyester/50% cotton) on the back side. A typical example is alternating fabrics.

Early sports clothing focused on characteristics such as strength, durability, and elasticity, and was made of 100% synthetic fiber yarn, mainly three-layer double-sided.
However, in recent years, in addition to the above-mentioned properties, there has been increasing demand for hygroscopicity, texture (soft feel), heat retention, etc., and the method of placing spun yarn on the back side has been frequently used.

However, on the other hand, since the spun yarn is placed on the back side, the fuzz of the spun yarn is exposed on the front side.

For example, if a fabric with the above-mentioned Motsukuroday double-sided structure and the above-mentioned material composition is dyed only with synthetic fiber yarn, a large amount of white fuzz from undyed cotton yarn will be exposed on the front side, which will significantly reduce the quality of the fabric and reduce its commercial value. even to the point of damaging it.

It is difficult to completely prevent fuzz from appearing during the knitting process of double-sided knitted fabrics with spun yarn on the back side from the viewpoint of the tissue structure.

Therefore, the preventive measures implemented in the fabric with the above-mentioned Motsukuroday double-sided structure and the above-mentioned material composition are as follows:
This method dyes the cotton yarn part of the spun yarn on the back side to a brightness similar to that of the synthetic fiber yarn on the front side, making it difficult to see visually.

When dyeing art materials made of inter-knitted polyester synthetic fiber yarns and cotton threads in the same color, there are generally two methods: dyeing both materials at the same time in the same bath, and dyeing the art materials in separate baths.

The former is inexpensive, but has the disadvantage that it is difficult to produce deep colors and has poor color fastness.

Although the latter covers the disadvantages of the former, it increases the number of steps and increases the cost.

Another known method to prevent the appearance of fluff is to apply fluffing during the dyeing and finishing process, but this increases the cost due to the increased number of steps, and also reduces the quality due to uneven fluffing. In many cases, disadvantages such as deterioration occur.

As mentioned above, placing spun yarn on the back side of the double-sided knitted fabric of sports clothing improves moisture absorption, texture, heat retention, etc., but on the other hand, the fluff exposed on the front side reduces the quality of the fabric. In order to prevent the disadvantages of degradation, the dyeing process is induced to increase the cost.

The purpose of this invention is to drastically reduce the appearance of the fuzz of the spun yarn on the back side to the front side by using a thick synthetic fiber yarn arranged in the binding yarn, and to eliminate the high cost of the dyeing process. On the back side, the stitches of the binding yarn protrude from the stitches of the spun yarn to create an uneven pattern, which prevents the stitches of the spun yarn from coming into direct contact with the skin, and eliminates the stickiness and discomfort of the fabric due to sweat. The purpose of the present invention is to provide a double-sided knitted fabric for sports clothing devised as described above.

The present invention was developed as a result of intensive studies aimed at improving the drawbacks of the prior art described above.

The present invention has the following configuration. That is, the present invention is a double-sided knitted fabric in which a front knitted structure and a back knitted structure are connected with a binding yarn made of synthetic fiber filament yarn, and the binding yarn includes a yarn thicker than the yarn constituting the back knitted structure. This is a double-sided knitted fabric characterized by using fine yarn and having the binding yarn protrude from the back knitting structure on the back side.

Hereinafter, the present invention will be explained in detail using the drawings.

FIG. 1 is an organizational chart showing one embodiment of the knitted fabric according to the present invention.

In FIG. 1, one dial needle is omitted, and high and low butt needles are arranged alternately, and all cylinder needles are used.

The numbers indicate the yarn feeder block, 1 t No, 4 t
No. 8 t No. 11 Using the spun yarn C at the yarn feeder, form a plain stitch on the back side with a dial needle.

On the other hand, out, 2. No, 3. No, 5. No, 6.
No, 9t No. 10, No, 12. No.1
Using synthetic fiber yarns a and b at the 3rd yarn feeder, form the front side plain stitches using a cylinder needle.

Next, with No., 7t No., and 14 yarn feeders, use synthetic fiber yarn with thick yarn d.The dial needle on the back side always knits to give shape to the stitches, while the cylinder needle always knits to give shape to the tuck stitches. The stitches on the front side and the stitches on the back side are connected together.

The point of the double-sided knitted fabric of this invention is No, 7tNo. ■If it is located at the yarn feeder and simply connects the front stitch and back stitch, both the dial needle and the cylinder needle will be tucked, resulting in so-called double-sided tuck stitching, and the effect of the present invention cannot be obtained.

Therefore, in order to create the shape of the concave and convex portions on the back side, which is a major feature of the present invention as shown in FIG. 3, the dial needle must always be knitted.

Further, the cylinder needles and dial needles are arranged so that they always perform knitting operations alternately, and it is important that one or more needles of both needles do not perform knitting operations in succession.

Further, for needles that are knitted with blood 7, No., and 14 yarn feeders, it is suitable to knit with the total number of needles of 174 or less for both cylinder needles and dial needles in order to obtain a larger convex opening on the back side.

The material used for the binding yarn is a synthetic fiber with no fuzz and a high bulk texture, preferably a yarn with torque in one direction and low boiling water shrinkage rate and elastic recovery rate, such as false twisted polyester multifilament yarn. The next set thread is good.

In addition, the gap 1 between the front side weave X and the back side weave Y shown in Fig. 3 is increased to reduce the appearance of fluff on the back side spun yarn, to create a larger protrusion on the back side, and to improve the appearance when worn. In order to improve the feel on the skin, the binding yarn d should be as thin a single denier, thick, and highly bulky yarn as possible, with a fineness ratio of at least 2 times, preferably 3 times or more, compared to the spun yarn on the back side. is desirable.

When the fineness ratio is small, the gap between the front side texture and the back side texture becomes small, and the fuzz of the spun yarn on the back side is likely to be exposed on the front side.

In addition, the irregularities of the protruding stitches of the binding yarn on the back side become small, and the line surface on the back side takes on a flat shape, so that the object of the present invention cannot be obtained.

FIG. 2 is an enlarged plan view of the fabric knitted according to the organization chart of FIG. 1.

The stitches corresponding to the convex portions on the back side have small protrusions in the rawhide state, but by hot water treatment, a clear unevenness can be obtained as shown in FIG. 3.

The size of the protrusion at the mouth of the convex portion is determined by the above-mentioned fineness of the bound yarn, yarn quality, and fineness ratio with respect to the spun yarn, as well as No. 7. The length of the yarn supplied by the yarn feeder No. 14 is a major factor, and it is necessary to make it as large as possible within the knitting possible range.

The tissue structure of this invention is usually a double-sided structure,
Since the amount of exposed fuzz is much smaller than the fabric with the above-mentioned material structure, the quality of the knitted fabric can be sufficiently ensured even by dyeing only the front side material.

Another major feature of the present invention is that the synthetic fiber binding yarn forms a stitch on the back side, and the stitch protrudes from the back knitting structure of the spun yarn on the back side.

Therefore, it is the protruding synthetic fiber threads that come into contact with the skin when worn, and the sweat-absorbing action is performed by transferring from the synthetic fibers in the protruding parts to the spun yarns of moisture-absorbing fibers through capillary action, so it is difficult to discuss after sweat absorption. It has a great effect of not making you feel that way.

Example 2 Using a Misaki double-sided circular knitting machine, yarns a and b for the front side fabric were made of false-twisted polyester filament yarns, double yarns of 135 denier 36 filament, and yarns for the back side fabric. After knitting with a 100% cotton 6-hat single yarn in C and a double yarn of 150 denier 96 filament false-twisted polyester filament yarn in yarn d for binding yarn, dyeing processing of normal polyester fibers is carried out. Only the polyester fibers were dyed and finished under certain conditions.

On the other hand, for comparison, polyester filament false-twisted yarn 150 denier 4 was fabricated on the front side using the same knitting machine with Motukurodi structure.
8 filaments, 50% polyester on the back side flat knitted part,
After knitting by inter-knitting four single hand yarns of 50% cotton blended yarn, it was dyed and finished at the same time as the fabric of the present invention.

The number of fuzz exposed on the product fabric was about 8 cMIU on average per 100 d for the fabric of the present invention, about 192 cMIU for the comparison product, and about 1124 for the fabric of the present invention.

In addition, the appearance of the fabric is that the front side has a smooth line surface, and the back side has an uneven shape composed of soft-touch convex parts and spun yarn concave parts, so it can be used as sports clothing such as warm-up suits and training wear. , wear resistance, elasticity,
An ideal product with functionality such as moisture absorption and heat retention was obtained.

Furthermore, since only polyester fibers are dyed, dyeing to a deep color does not result in a large cost increase, and the problem of color fastness has been solved.

[Brief explanation of the drawing]

FIG. 1 is a diagram of the double-sided knitted fabric structure of the present invention, FIG. 2 is an enlarged view of the double-sided knitted fabric structure of the present invention, and FIG. 3 is a cross-sectional model diagram of essential parts of the double-sided knitted fabric structure of the present invention. a, b: threat fiber yarn for front side stitch, C: spun yarn for back side stitch, d: threat fiber yarn for binding yarn, X: front side texture, Y:
Back side structure, ]: Gap between front side structure and back side structure, A: Recessed part on the back side, B: Convex part on the back side, C: Stitch corresponding to the convex part on the back side, C1, C2, C3° C4, C5, C6, C7 ,C8,
C9, C1o, C11: front side wale, Dl, D3.
D5. D7. D9. Dll: Back side wale

Claims (3)

[Scope of utility model registration request] (1) A double-sided knitted fabric in which a front knitted structure and a back knitted structure are connected with a binding yarn of synthetic fiber filament yarn, and the binding yarn includes:
1. A double-sided knitted fabric characterized by using a thick yarn thicker than the yarn constituting the back knitting structure, and having the binding yarn protrude from the back knitting structure on the back side. (2) The double-sided knitted fabric according to claim 1, wherein the front knitted structure is composed of synthetic fibers and the back knitted structure is composed of moisture-absorbing fibers. (3) The double-sided knitted fabric according to claims (1) and (2) of the utility model registration claim, wherein the binding yarn is a textured yarn with high bulk.