JPH1053940A - Wind breaking weft knitted fabric and cold weather clothing - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide wind breaking weft knitted fabric having wind breaking property and excellent thermal insulation property and wearing feeling without losing excellent properties such as stretchability and bulkiness contained in weft knitted fabric and to provide a cold weather clothing using the wind breaking weft knitted fabric. SOLUTION: This weft knitted fabric has a double loop structure formed by two short fiber yarns in which a short fiber yarn C forming inside of the double loop is constructed by short fiber yarns containing highly shrinking fibers having 15-50% boiling water shrinkage and conjugate fibers having 5-20% boiling water shrinkage, and a short fiber yarn D forming outside of the double loop is constructed by short fiber yarns having <=5% boiling water shrinkage. Further, a cold weather clothing is formed from the knitted fabric.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a windproof weft knitted fabric excellent in heat retention and wearing sensation, and to a winter garment using the same.

[0002]

2. Description of the Related Art It has been often experienced that a knitted product, particularly a knitted product composed of a weft knitted fabric, has a remarkable decrease in heat retention when there is a wind in winter. This is due to the fact that the basic structure of the weft knitted fabric is a knit loop, which increases the air permeability and lacks windproofness. For this reason, various technical attempts have been made in the past to impart windproof performance to the weft knitted fabric and improve the heat retention, and a method of forming a coating on the knitted ground by coating the weft knitted ground with a urethane resin or the like and a knitted fabric density. To make the knitted ground more dense.

However, these methods impair the excellent properties of the weft knitted fabric, for example, stretchability, bulkiness, and comfort. That is, in the method of coating processing,
The weft knitted fabric has reduced elasticity and bulkiness depending on the coating part, and the method of densification often uses shrinking yarn, so the degree of freedom of the knit loop is extremely small and lacks elasticity. It becomes a knitted fabric.

On the other hand, a method of imparting a windproof effect by combining a shrinkable yarn or the like with a specific portion of a knitted fabric structure is disclosed in Japanese Patent Laid-Open No. 51-5 / 1979.
No. 3062, Japanese Patent Application Laid-Open No. 51-102175, Japanese Patent Application Laid-Open No. 51-139963, and the like. The methods according to these proposals include a method of increasing the knitted fabric density and a method of combining heating and pressurizing treatments, and the like. However, the method is applied to a knitted fabric product requiring elasticity and bulkiness, particularly to a knitted fabric product having a large knit loop. It is difficult to say that this is a sufficient technique for imparting windproofness.

[0005] In order to impart wind resistance to the weft knitted fabric,
As a method for reducing the air permeability of the knit loop by reducing the space in the knit loop of the weft knitted fabric, there are a method of reducing the knit loop and a method of forming the knit loop with two yarns. In the method of reducing the loop, the elasticity and bulkiness are insufficient, and the inherent characteristics of the weft knitted fabric are easily damaged. In the method in which the knit loop is composed of two yarns, simply arranging and knitting the two yarns results in a loop of the same size, and the space portion in the knit loop is hardly reduced. Even if a double loop is used for this yarn, if a yarn having a small shrinkage or a non-bulky yarn is used for the inner knit loop, a thick yarn must be used to reduce air permeability. It is a heavy material with little elasticity, and it tends to be a product with a poor feeling of wearing.

[0006]

SUMMARY OF THE INVENTION The present invention relates to a weft knitted fabric in which a double loop is formed by two yarns, and an inner loop is present in an outer loop. As a means of reducing, it was made as a result of a study focusing on the yarn configuration of the inner loop in particular, the object of the present invention, without impairing the excellent elasticity and bulkiness characteristics of the weft knitted fabric, windproof It is an object of the present invention to provide a windproof weft knitted fabric, which is provided with excellent heat retention and a feeling of wearing, and a winter clothes using the windproof weft knitted fabric.

[0007]

SUMMARY OF THE INVENTION The present invention relates to a weft knitted fabric having a double loop structure formed of two short fiber yarns.
The short fiber yarn forming the inner side of the heavy loop is subjected to boiling water shrinkage of 15
A short fiber yarn comprising a high-shrinkage fiber of about 50% and a conjugate fiber having a boiling water shrinkage of 5 to 20%, wherein the short fiber yarn forming the outside of the double loop has a boiling water shrinkage of less than 5%. Windproof weft knitted fabric characterized by comprising fiber,

[0008] The present invention is also directed to a cold-weather garment, which is constituted mainly by using the windproof weft knitted fabric.

[0009]

DESCRIPTION OF THE PREFERRED EMBODIMENTS A double loop structure according to the present invention will be described with reference to the drawings. FIG. 1 is a knit loop diagram schematically showing a double loop structure of an example of the weft knitted fabric of the present invention. In FIG. 1, A indicates a short fiber yarn forming an outer loop, and B indicates a short fiber yarn forming an inner loop, and has a single knit loop appearance. Hereinafter, the short fiber yarn forming the outside of the double loop and the short fiber yarn forming the inside of the double loop in the present invention respectively refer to A and B in FIG.

In the present invention, the high shrinkage fiber and the conjugate fiber are used for the short fiber yarn forming the inside of the double loop, so that the inner loop is shrunk by a boiling water treatment such as dyeing, and the inside of the knit loop is reduced. The main point is to provide a windproof property to the weft knitted fabric by reducing the space and reducing the air permeability.

In the present invention, the short fiber yarn forming the inside of the double loop is a short fiber yarn containing a high shrinkage fiber having a boiling water shrinkage of 15 to 50% and a conjugate fiber having a boiling water shrinkage of 5 to 20%. Consists of Articles. As a high shrink fiber, JI
It is a fiber having a high shrinkage with a boiling water shrinkage of 15 to 50% as measured according to SL-1015 and 7.15. As a conjugate fiber, two components having different boiling water shrinkages are laminated and shrunk. Is a fiber having a bimetallic curl-like three-dimensional crimp and a boiling water shrinkage of 5 to 20% as measured by the JIS.

Particularly, the high shrinkage fiber and the conjugate fiber are preferably high shrinkage acrylic fiber and acrylic conjugate fiber, respectively, from the viewpoint that good heat retention can be obtained when the weft knitted fabric is used for a product such as a sweater.

If the high shrinkage fiber has a boiling water shrinkage of less than 15%, it is difficult to obtain sufficient shrinkage of the inner loop, so that the space in the knit loop cannot be reduced, and windproofness cannot be obtained. If the rate exceeds 50%, the shrinkage of the inner loop becomes too large, and conversely, the space in the knit loop increases, and the desired windproof property cannot be obtained.

[0014] The conjugate fiber is contracted by the shrinkage treatment to develop a three-dimensional crimp, but it is generally difficult to exhibit an effective three-dimensional crimp by a shrinkage treatment that has a weak contraction force and a large tension load such as dyeing. However, when the high shrinkage fibers coexist, the tension load is reduced by the shrinkage of the high shrinkage fibers, and a three-dimensional crimp is developed. Therefore, in the present invention, the high shrinkage fiber and the conjugate fiber complement each other, and the inner loop shrinks due to both the shrinkage of the high shrinkage fiber and the three-dimensional crimp of the conjugate fiber, and the space within the knit loop. The number of parts is reduced, the air permeability is reduced, and wind resistance is obtained.

The short fiber yarn containing the high shrinkage fiber and the conjugate fiber preferably contains the high shrinkage fiber and the conjugate fiber in an amount of 50% by weight or more, more preferably 70% by weight or more, and the high shrinkage fiber and the conjugate fiber. The composition ratio with the gate fiber is 1: 2 to 2: 1, more preferably 1: 1.5 to
1.5-1 blended yarns are used. If the total of the high shrinkage fiber and the conjugate fiber contained in the blended yarn is less than 50% by weight, it is difficult to obtain sufficient shrinkage of the inner loop, and the knit loop is used in the same manner as when using a yarn having a small boiling water shrinkage. The interior space cannot be reduced and satisfactory windproofness cannot be obtained. In addition, the fact that the short fiber yarn including the high shrinkage fiber and the conjugate fiber is a blend yarn is effective in reducing the fluff and loop in the knit loop, and also as a double loop as an inner loop. Make it stable.

When the composition ratio of the high shrinkage fiber in the blended yarn exceeds the above range, the shrinkage of the inner loop becomes too large, and the same as in the case of using a yarn having an excessively high boiling water shrinkage, the knitted loop has a large size. The desired windproof property cannot be obtained, and the stretchability of the weft knitted fabric is hindered, resulting in a hard texture. When the composition ratio of the high shrinkage fiber is less than the above range, it is difficult to obtain sufficient shrinkage of the inner loop, and it is not possible to reduce a space portion in the knit loop, so that wind resistance cannot be obtained.

When the composition ratio of the conjugate fiber in the blended yarn exceeds the above range, it is difficult to obtain sufficient shrinkage of the inner loop, so that the space in the knit loop cannot be reduced, and the desired windproof property Is not obtained, and when the constituent ratio of the conjugate fiber is less than the above range, the shrinkage of the inner loop becomes too large, and the space portion in the knit loop is similar to the case of using the yarn of only the high shrinkage fiber And the desired windproof property cannot be obtained.

In the present invention, the short fiber yarn forming the outside of the double loop is made of a fiber having a boiling water shrinkage of less than 5%, and the short fiber yarn used is wool, cotton or acrylic fiber. And spun yarns made of ordinary fibers such as polyester fibers, blended yarns, blended yarns, etc., and are not particularly limited, and considering the uniformity of the surface of the knitted fabric, the improvement of the windproof effect, and the like depending on the intended weft knitted fabric. Fiber, count, number of twists, etc. are arbitrarily selected and used.

The double loop structure of the weft knitted fabric of the present invention is shown in FIG.
It is formed by double knitting as shown in FIG. The knitting of the double knitting is performed by the method of inserting the yarn shown in FIG. In this case, the rib knit and the sheet knitting are simultaneously knitted, but the tension ratio of the outer short fiber yarn D / the inner short fiber yarn C in the double knit structure is set so that the double loop is stabilized. Further, the double loop structure of the weft knitted fabric is formed by an additional yarn knitting as shown in FIG. The knitting of the auxiliary thread is performed by the method of inserting the yarn shown in FIG. In this case, the tension of the inner short fiber yarn E in the added yarn knitting structure at the time of knitting of the added yarn is increased, and the tension ratio of the outer short fiber yarn F / the inner short fiber yarn E is stable in the double loop. Set to

Adjustment of the tension at the time of knitting of the double knitting or the additional knitting is performed by using an adjusting device such as a tension bar, but two yarns are stably supplied to a yarn supplying portion for the knitting needle. Therefore, it is preferable to knit using a feeder having two yarn feeders. Further, the knitting of the double knitting is preferably a circular knitting even in the case of a weft knitted fabric, and the knitting of the auxiliary thread is preferably a circular knitting or a flat knitting. In particular, in products such as sweaters, weft knitting in flat knitting is preferred from the viewpoint of obtaining heat retention and wearing feeling.

The knitting structure may be selected from the viewpoint of knitting properties, but it is preferred that both the double knitting and the spun knitting have a plain knitting structure on the surface of the flat knitted fabric. It is preferable to have a continuous pattern structure with a small number of knit loops.

The windproof weft knitted fabric of the present invention has a uniform knitted fabric appearance, has excellent stretchability and bulkiness, is provided with windproofness, has excellent heat retention, and has a yarn material, Since the unevenness effect, the color effect, and the like are diversified by the combination of the knitting structure and the like, it is suitable for wear fields such as sweaters and sportswear. Wear made using the windproof weft knitted fabric of the present invention is excellent in heat retention and wearability as a winter garment, and the present invention includes a cold vest constructed using such a windproof weft knitted fabric .

That is, the winter clothing of the present invention is mainly composed of the windproof weft knitted fabric of the present invention, and may be composed of only the windproof weft knitted fabric, or the windproof performance of the windproof weft knitted fabric. May be combined with other fabrics within the range in which is exhibited. For example, when the windproof weft knitted fabric of the present invention is used for golf wear, the front body, the back body is made of a windproof weft knitted fabric, and the arm portion is made of other stretchable fabric.
Cold weather golf wear excellent in exercise function can be obtained.

When the windproof weft knitted fabric of the present invention is used for a ski sweater, a windproof weft knitted fabric is used for the front body and the front of the arm, and the other body having high moisture permeability is used for the back body and the back of the arm. By using the fabric, it is possible to obtain a ski sweater that has a windproof performance against strong wind received in front of the body when gliding and has a comfortable wearing feeling that can evaporate sweat during exercise from the back body .

[0025]

The present invention will be described below in more detail with reference to examples. The evaluation items in the examples were measured and evaluated by the following methods.

<Air permeability> The air permeability was measured using a tex test (T
EXTEST) FX3300 type Frazier tester was used and measured according to JIS L-1018 6.34 air permeability measurement method. <Stretchability and bulkiness> Evaluation was made by handling according to the product characteristics. <Warmness in windy conditions> Evaluation was carried out by a physical test and a variable environment test in actual winter wearing.

(Example 1, Comparative Examples 1 and 2) 2 shown in FIG.
With a knitting structure of heavy knitting, a weft knitted fabric for training wear was produced using a 20G molat circular knitting machine. The dyeing process was performed by a method of dyeing with a cationic dye under boiling conditions using a Wins type dyeing machine.

In the knitting, as shown in FIG. 6, an inner short fiber yarn (G) was added to the sheet-forming structure of the first feeder, and in Example 1, 40% by weight of a high shrinkage acrylic fiber having a boiling water shrinkage of 23%, and a shrinkage of boiling water 30% by weight of acrylic conjugate fiber having a rate of 8% and regular acrylic fiber 30 having a shrinkage of boiling water of 2%
In Comparative Example 1, a high shrinkage acrylic fiber 1 having a boiling water shrinkage of 23% was used.
Using a spun yarn of 1 / 64th count of 00%, in Comparative Example 2,
A spun yarn of 1 / 64th count of 100% of regular acrylic fiber having a boiling water shrinkage of 2% was used.

In the rib structure of the first feeder, the outer short fiber yarn (H) was made of 100% of regular acrylic fiber having a boiling water shrinkage of 2% in each of Example 1, Comparative Example 1 and Comparative Example 2. A 1/52 count spun yarn was used. further,
The second feeder, the third feeder, and the fourth feeder were knitted with the same inner short fiber yarn (G) and outer short fiber yarn (H) yarn structure in the first feeder for both the sheeting structure and the rib structure.

The results of evaluation of the dyed weft knitted fabric are shown in Table 1. In Comparative Example 1, a knitted fabric having a high basis weight and insufficient elasticity was obtained. In Comparative Example 2, a knitted fabric having a high air permeability was used. The knitted fabric in Example 1 was a weft knitted fabric suitable for training wear having an excellent balance of air permeability, elasticity, and bulkiness, and also having excellent heat retention during wind.

[0031]

[Table 1]

(Example 2, Comparative Examples 3 and 4) A sweater was produced using an 8G simatronic flat knitting machine with a sheet-laying structure of a knitted yarn shown in FIG. 4, and a cationic dye was prepared using a paddle type dyeing machine. It was dyed with an acid dye under boiling conditions and finished with a Hoffman press.

In the knitting, the inner short fiber yarn (E) is used. In Example 2, 40% by weight of a high shrinkage acrylic fiber having a boiling water shrinkage of 23% and 30% by weight of an acrylic conjugate fiber having a boiling water shrinkage of 8% are used. In the comparative example 3, 1/64 of 100% of the high shrinkage acrylic fiber having a boiling water shrinkage of 23% was used. Using spun yarn of count,
In Comparative Example 4, a spun yarn having a 1 / 64th count of 100% of regular acrylic fiber having a boiling water shrinkage of 2% was used.

In Example 2, Comparative Example 3 and Comparative Example 4, a wool spun yarn having a count of 2/20 was used as the outer short fiber yarn (F). The evaluation results of the dyed sweater are shown in Table 2. The sweater of Example 2 has an excellent balance of air permeability, elasticity, and bulkiness, excellent heat retention in wind, and a feeling of wearing. Was also excellent.

[0035]

[Table 2]

FIG. 7 shows the results of measuring the heat retention of the sweaters produced in Example 2 and Comparative Example 4 by wearing tests. FIG. 7 is a graph showing a change in skin temperature when a subject wears a sweater. The subject was a 35-year-old adult male wearing a sweater made as above on a short-sleeved 100% cotton polo shirt, sitting in a chair in an environment-variable room set at an ambient temperature of 10 ° C and a humidity of 40% for 15 minutes. Was tested for wear.

In the wearing test, the skin temperature of the chest and the arm was measured using a temperature sensor. The skin temperature at each site was shown on the graph as the average value of the two measurements on the left and right. The measurement was performed in a windless state for the first 3 minutes of the 15 minutes, and thereafter, in a windy state with a wind speed of 3 m / s for 2 minutes, in a windy state with a wind speed of 6 m / s for 2 minutes, and a wind speed of 9 m / s.
The measurement was performed for 2 minutes in a windy state for 2 seconds and for 4 minutes in a windless state. As is clear from FIG. 7, the sweater of Example 2 is 2 to 4 ° C. more particularly than the sweater of Comparative Example 4 in a windy state.
It was confirmed that a significant effect was exhibited, and that a warming effect was exhibited.

[0038]

The windproof weft knitted fabric of the present invention has a uniform knitted fabric appearance, is excellent in stretchability and bulkiness, is provided with windproofness, and is excellent in heat retention. The winter clothing made of the windproof weft knitted fabric of the present invention has a heat retaining property based on the windproofness of the weft knitted fabric and is excellent in wearing feeling.

[Brief description of the drawings]

FIG. 1 is a knit loop diagram schematically showing a double loop structure of an example of a weft knitted fabric of the present invention.

FIG. 2 is a knit loop diagram schematically showing a double knit structure of an example of a weft knitted fabric of the present invention.

FIG. 3 is a diagram schematically showing a positional relationship between a knitting needle and a yarn at the time of knitting a double knitting structure shown in FIG. 2;

FIG. 4 is a knit loop diagram schematically showing a weft knitting structure of another example of the weft knitted fabric of the present invention.

5 is a diagram schematically showing a positional relationship between a knitting needle and a yarn at the time of knitting of the additional yarn knitting structure of FIG. 4;

FIG. 6 is a knitting structure diagram schematically showing an example of the weft knitting structure of the present invention.

FIG. 7 is a graph showing changes in skin temperature when wearing a sweater as an example of the winter clothing of the present invention.

[Explanation of symbols]

A outer short fiber yarn of a knit loop in a double loop structure B outer short fiber yarn of a knit loop in a double loop structure C inner short fiber yarn in a double knit structure D outer short fiber yarn in a double knit structure E Inner short fiber yarn in a spun knitted structure F Outer short fiber yarn in a spun knitted structure G Inner short fiber yarn in a spun knitted structure H Outer short fiber yarn in a spun knitted structure a Sweater of Example 2 Skin temperature at the time of wearing the sweater of Comparative Example 4 b Arm skin temperature at the time of wearing the sweater of Example 2 d Arm skin temperature at the time of wearing the sweater of Comparative Example 4

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Ken Matsuzaki 1-12-35 Minami Kohoku, Suminoe-ku, Osaka-shi, Osaka Inside Mizuno Co., Ltd. No. 35 Inside Mizuno Co., Ltd.

Claims (6)

[Claims] 1. In a weft knitted fabric having a double loop structure formed of two short fiber yarns, the short fiber yarns forming the inside of the double loops are made of high shrinkage fibers having a boiling water shrinkage of 15 to 50%. And a conjugate fiber having a boiling water shrinkage of 5 to 20%, and the short fiber forming the outside of the double loop is made of a fiber having a boiling water shrinkage of less than 5%. Windproof weft knitted fabric. 2. A short fiber yarn comprising a high shrinkage fiber and a conjugate fiber contains 50% by weight or more of the high shrinkage fiber and the conjugate fiber, and the composition ratio of the high shrinkage fiber and the conjugate fiber is 1%. The windproof weft knitted fabric according to claim 1, which is a blended yarn of 2 to 2: 1. 3. The high-shrink fiber and the conjugate fiber,
The windproof weft knitted fabric according to claim 1 or 2, which is a high shrinkage acrylic fiber and an acrylic conjugate fiber, respectively. 4. The double loop structure formed by two short fiber yarns is a double loop structure formed by an additional yarn or double knitting. The windproof weft fabric described. 5. The double loop structure formed by two short fiber yarns is a flat knit, and is formed by a spun yarn of a blended yarn containing a high shrinkage acrylic fiber and an acrylic conjugate fiber. The windproof weft knitted fabric according to claim 4, which has a double loop structure. 6. A winter coat comprising mainly the windproof weft knitted fabric according to claim 1, 2, 3, 4, or 5.