JPH0941246A - Plural-layer circular knitting fabric - Google Patents

Abstract

PROBLEM TO BE SOLVED: To produce a circular knitting fabric comprising the texture of the surface composed of >=30% knitted stitches having a dotted recessed space, >=50% knitted stitches made by knitting one yarn and the texture of the back formed by knitting two yarns and a thermoplastic synthetic yarn containing an inorganic filler, having sweat absorbing function, rapidly drying function, cleaning function and sunshine screening properties, simultaneously provided with comfortableness of a face to be brought into contact with skin. SOLUTION: The surface of a circular knitting fabric is formed by knitting a polyester falsely twisted textured yarn X having <=6d fineness of single yarn in the knitting order of (1) and (7) on dials (b), (d) and (f) and knitting one yarn to form knitted stitches on cylinders A, C and E. In the knitting order of (4) and (10), the back of the circular knitting fabric, forming a space of alternate tuck knitting shape on the surface obtained by tucking by knitting on the cylinder C, is formed by subjecting a polyester falsely twisted textured yarn Y containing more than 0.5wt.% of titanium oxide to tuck knitting on dials (a), (c) and (e) in the knitting order of (2), (5), (8) and (11) and knitting the yarn on the dials (b), (d) and (f). The back of the circular knitting fabric is provided with knitted stitches by knitting a fine loop yarn Z of Taslan processing containing a yarn having <=1 denier fineness on the dials (a) to (f) in the knitting order of (3), (6), (9) and (12) by all knitting.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a multi-layer circular knitted fabric having different front and back surface designs, yarns and functions. Further, the present invention relates to a multi-layer circular knitted fabric suitable for sports clothing, which is capable of exhibiting sweat absorption property, quick drying property, and sun ray blocking property (cooling effect).

[0002]

2. Description of the Related Art Sports clothes used for golf, tennis, baseball, soccer, etc. are required to have sweat absorption and quick-drying properties as well as sun ray blocking properties for blocking strong sunlight.

[0003] Conventionally, various techniques have been developed in which the properties and functions of the cloth are made different on the front surface and the back surface to achieve both a sweat absorbing function and comfort. That is, one surface and the other surface of the synthetic fiber cloth are processed with a synthetic resin having different functions to give water absorption, sweat absorption and water repellency.
No. 274, or by arranging a non-sweat absorbing fiber, which is an ultrafine fiber having a sweat absorbing polyester fiber on one side of the fabric and a brushed finish on the other side, has excellent sweat absorbing property and does not cause a sticky feeling on the wearing place. Japanese Patent Laid-Open No. 57-171
No. 738, etc., there have been proposed techniques for resin processing or techniques for properly using yarns.

As a knitted fabric, a tuck knitting structure is knitted by devising a cylinder needle and a dial needle of a double knitting machine to obtain a multi-structured knitted fabric having a sweat wicking function for sports. JP-A-1-68548 Or a knitted fabric with a good sweating function that has a two-layer laminated structure in which spandex is interwoven, and the ratio of the water rising distance between the front yarn and the back yarn and the ratio of single yarn fineness are specified. Obtaining JP-A-63-2
Utilizing the structure of the front and back of the knitted fabric, such as 49747 publication,
Techniques for differentiating surface functions are also known. On the other hand, as a composite fiber, it achieves moisture absorption and sweat absorption functions.
Ideas on the fiber structure have been proposed such as Japanese Patent No. 1762.

[0005]

However, in the above-mentioned conventional technique, the function is made different between the front surface and the back surface for the purpose of sweat absorption, but the texture is sacrificed or the texture can be obtained.
Those lacking in the ability to block the sun's rays (cleaning effect), etc.
What can be completely satisfied as a practical sports clothing is:
It was not obtained.

In order to solve the above-mentioned conventional problems, the present invention provides a sweat absorbing function, a quick drying function, a cooling function, and a sun ray blocking property to provide both the comfort of the surface in contact with the skin and the functionality as clothes. It is an object of the present invention to provide a circular knitted fabric having the above-mentioned simultaneously.

[0007]

In order to achieve the above object, the multi-layer circular knitted fabric of the present invention is a multi-layered circular knitted fabric having different knitting structures on the front surface and the back surface, and the structure of the surface is 30th stitch
% Or more has a dot-shaped concave space, and a synthetic fiber processed yarn having a single yarn denier of more than 1 denier and not more than 6 denier is knitted with one yarn to form a stitch, and the backside structure is a stitch. Of 50% or more is knitted in the form of two threads, and 50% or more of the stitches of the back surface structure are filled with an inorganic filler of 0.
It is characterized in that a thermoplastic synthetic fiber containing an amount of more than 5% by weight is used. In the above description, the texture of the dot-shaped concave space refers to a space in which the stitches on the cylinder side are not continuously formed in the course direction or the well direction, but are cleared without yarns at the time of knitting to have a concave shape. As the inorganic filler, additives such as titanium powder, silica, alumina, zirconia, barium sulfate, boron nitride, calcium carbonate, and other metallic powders, or ceramics and other inorganic powders can be used. Further, in the above description, the surface of the circular knitted fabric is the side that comes into contact with the skin when sewn into clothing, and the back side of the circular knitted fabric is the front side of the clothing, that is, the side that is exposed to sunlight.

In the above-mentioned structure, some yarns are connected to the front surface and the back surface, and the ratio of the yarn amount W _s on the front surface to the yarn amount W _{b on} the back surface is expressed by the formula [2 · W _s ≤ W _b ]. In the above description, knitting or tucking, for example, is used to bond the yarns on the front surface and the back surface.

In the above construction, it is preferable to use the thermoplastic synthetic fiber containing the inorganic filler in an amount of more than 0.5% by weight in the range of 30% or more and 70% or less of the back surface stitch area.

Further, in the above constitution, the thermoplastic synthetic fiber containing the inorganic filler in an amount exceeding 0.5% by weight contains a relatively large amount of the inorganic filler in the core component and does not contain the inorganic filler in the sheath component, or A core-sheath composite fiber containing a relatively small amount is preferable. of course,
Fibers containing the inorganic filler uniformly can also be used, and in this case, it is preferable to use thermoplastic synthetic fibers containing an average amount of more than 0.5% by weight.

Further, in the above-mentioned structure, the yarns constituting the back surface design include fine loop yarns containing ultrafine yarns having a single yarn denier of 0.1 to 1 denier within a range of 30% by weight or more and 70% by weight or less of a yarn amount ratio. Is preferably used. In the above, the fine loop yarn is, for example, compressed air turbulence treatment,
It is a processed yarn that has been subjected to so-called Taslan processing.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION According to the multi-layered circular knitted fabric of the present invention described above, a multi-layered circular knitted fabric having different knitting structures on the front surface and the back surface, wherein the surface design is such that 30% or more of the stitches are Synthetic fiber processed yarn having a point-shaped concave space and a single yarn denier of more than 1 denier and not more than 6 denier is knitted with one yarn to form a stitch, and the backside structure is 50% of the stitch. The above is 2
By using a thermoplastic synthetic fiber which is knitted in a thread shape and contains an inorganic filler in an amount exceeding 0.5% by weight in 50% or more of the stitches of the back surface structure, a sweat absorbing function, a quick drying function and a cooling function are obtained. In addition, it is possible to realize a circular knitted fabric that has a property of blocking sunlight and has both the comfort of the surface in contact with the skin and the functionality as clothes at the same time. That is, since a relatively thick synthetic fiber processed yarn having a single yarn denier of more than 1 denier and not more than 6 denier on the surface in contact with the skin is used to form a tissue having a point-shaped concave space, it has high sweat absorption and also has a cooling effect. high. Further, since 50% or more of the stitches of the back surface structure (the side in contact with the outside air) are knitted in the form of two threads, the fiber density is relatively high and the surface area is large, which is excellent in quick drying. Further, since the inorganic filler is contained in an amount exceeding 0.5% by weight in 50% or more of the stitches of the back surface structure,
Excellent in blocking sunlight.

Since the surface of the circular knitted fabric is a surface that comes into contact with human skin, it does not cause irritation to the skin and has a function of quickly absorbing the sweat that has emerged on the surface of the skin due to the sweating action. First important. For that purpose, it is necessary to have a mechanism in which the contact surface of the knitted fabric that comes into contact with the skin quickly absorbs sweat by a capillary phenomenon. In addition, it is necessary to give a refreshing feeling without sticking to the skin. The term "surface" as used herein refers to the one that is knitted with a circular knitted cylinder needle and that emerges to the front side in a knitted tubular state. The back side is the one that is knitted with dial needles and enters the inside of the cylinder. Generally, the organization of the cylinder side and dial side is determined from the ease of knitting,
You can choose the opposite way.

In order to obtain the above effect, not all the planes formed by the stitches of the knitted fabric come into contact with the skin, but 30 stitches of the stitches.
% Or more, preferably 50% or more of the space is required, and it is important that the tissue has a point-shaped concave space. When the knitted fabric comes into contact with the skin, if it touches at all stitches,
Since it has a feeling of strangeness, a point-shaped concave space is created, and if the filament is a synthetic fiber processed yarn having a denier of 6 denier or less, it has a sweat absorbing effect and does not cause a strange feeling. In addition, it is important from the standpoint of comfort that the stitches are composed of one yarn without other yarns and do not knit different single yarn denier. In addition, ultrafine yarn is not preferable because it keeps the capillary phenomenon and reduces the feeling of contact with the skin.

On the other hand, on the back surface of the knitted fabric, 50 stitches
% Or more is preferably knitted with two yarns, and a thermoplastic synthetic fiber containing an additive such as metal-based fine powder or inorganic-based fine powder in an amount of more than 0.5% by weight in 50% or more appearing on the front side of the stitch It is preferable to use the processed yarn.

Specifically, a dial needle for forming the back side stitch is tacked with a part of the front thread for forming the front side or the back thread for the back side, and further knitted simultaneously with the back thread for the back side to form the stitch. The point is that this ratio is preferably 50% or more of the stitches. This is preferable in order to diffuse the sweat wicked from the surface yarn by the capillary effect into a narrow and dense space and improve the sweat absorbing ability.

Further, the temperature of the sucked perspiration rises due to sunlight and vaporizes. However, it becomes hot and humid in this process, which is accompanied by uncomfortable wearing. In order to suppress this phenomenon, a thermoplastic synthetic fiber containing metal fine powder such as titanium oxide or inorganic fine powder such as ceramics that reflects or blocks sunlight in an amount exceeding 0.5% by weight is more preferable. Has the effect of softening the temperature rise by using this as a processed yarn for temporary twisting and the like.
In particular, a thermoplastic synthetic fiber containing an inorganic filler in an amount of more than 0.5% by weight contains a relatively large amount of the inorganic filler in the core component and does not contain the inorganic filler in the sheath component or contains a relatively small amount thereof. If you use composite filaments,
In addition to effectively blocking the sun's rays, the disadvantages of including a large amount of inorganic fillers, such as the problem of abrasion of knitting needles, can be avoided.

The front surface and the back surface are knitted or tucked together to form two parts of yarns, which are arranged inside the front surface and a part of the back surface. The sweat wicked from the front surface is diffused on the back surface to increase the wicking speed. In order to raise it, it is necessary that the thread amount on the back surface is larger than that on the front surface, and it is preferable that the ratio of the thread amount Ws on the front surface to the thread amount Wb on the back surface satisfies the expression [2Ws ≦ Wb]. .

Next, the use ratio of the thermoplastic synthetic fiber containing the additive for reflecting the sun rays in an amount exceeding 0.5% by weight is more effective when it is closer to 100%, but since it appears on the front side as clothes. , It makes the texture and the appearance look bad. Therefore, 30% or more and 70% or less, preferably 30% to 50%
% Is required, but if it is less than that amount, the effect is small.

Further, in order to make the fiber space dense for increasing the speed of sweat absorption, the single yarn within the range of 30% or more and 70% or less in terms of the amount of yarn on the back surface of the knitted fabric, that is, the surface exposed on the front side as clothes. It is preferable to use a fine loop yarn containing an ultrafine yarn having a denier of 1 denier or less. It is also effective to use split type fibers or sea-island type fibers that can be split and divided in a later step as the ultrafine yarn.

Such a fine loop yarn not only enhances the above-mentioned effect but also eliminates a feeling of strangeness on the texture surface, obtains a favorable texture, and at the same time divides sweat into fine spaces between filaments of the fiber, which is extremely fast. It works to increase the drying effect.

It is also effective to use a temporary warp yarn using an ultrafine yarn instead of the fine loop yarn or a spun yarn using a synthetic fiber of 1 denier or less. In addition, a mixed spinning yarn of polyester such as polyethylene terephthalate, nylon, cotton, etc. is inferior in the quick-drying effect, but by knitting a thermoplastic synthetic fiber containing an inorganic filler in an amount of more than 0.5%, a little in that respect. Covers are possible. It is also possible to use 100% synthetic fibers.

[0023]

The present invention will be described more specifically with reference to the following examples. (Example 1) FIG. 1 is a circular knitting structure diagram of an example of the present invention. In FIG. 1, (1) to (6) are knitting order and organization 1.
It is a repeat, and a to f are needles on the dial side, and A to F are needles on the cylinder side. The symbol of the loop indicates that the needle makes a knit (stitch). A symbol that simply indicates a hook instead of a loop indicates that the needle is a tack.
That is, it indicates that the stitch is not bound to the next yarn supply.

As shown in FIG. 1, the total fineness on the surface:
75 denier (number of constituent fibers: 18, single yarn denier:
4.2 denier) polyethylene terephthalate false twisted yarn X is dialed in knitting order (1) and (7) with dials b, d, f
And knitting with the cylinders A, C, E are knitted with one yarn. Also, knitting order (4), (10)
In the case of A, a denier tuck is used to create a canopy-like space on the front side, 150 denier (number of constituent fibers: 4
Eight polyethylene terephthalate false twisted yarn Y (single yarn denier: 3.1 denier) (core-sheath composite conjugate fiber, weight ratio of core to sheath is core: sheath = 60: 40, titanium oxide is 2 in core component) (2), (5), (8), and (11) in the order of knitting)
Tuck knitting was performed with dials a, c, and e, and knit knitting was performed with b, d, and f to form stitches. In addition, 100 on the back
Denier (total fineness 50 denier, number of constituent fibers 7
2 pieces, total fineness 50 denier, number of constituent fibers 24
Polyester fine loop yarn Z obtained by Taslan processing (using two books) was formed by knitting stitches in (3), (6), (9) and (12) on dials a to f with all knit.

The circular knitted fabric thus obtained has different knitting structures on the front surface and the back surface, and in the surface structure, 30% or more of the stitches have point-shaped concave spaces, and the single yarn denier is 4. 2 denier polyester fiber processed yarn is knitted with 1 yarn to form a stitch, and the backside structure is 50% or more of the stitch is 2
It was knitted in a thread shape and was formed of a polyester fiber-processed yarn containing 0.5% by weight of titanium oxide in 50% or more of the stitches of the back surface structure. Then, when this circular knitted fabric was sewn to golf wear and actually tested in the middle of summer, the sweat absorption function, the quick drying function, the cooling function, and the sunlight blocking property were excellent, and the comfort of the surface in contact with the skin, It was confirmed that they have both functionality as clothes at the same time.

[0026]

As described above, the multi-layered circular knitted fabric of the present invention is a multi-layered circular knitted fabric having different front and back surface knitting structures,
The surface texture is such that 30% or more of the stitches have a point-shaped concave space, and a synthetic fiber processed yarn having a single yarn denier of more than 1 denier and not more than 6 denier is knitted with one yarn to form a stitch. And 50% or more of the stitches of the back surface structure are knitted in two threads and
%, The use of thermoplastic synthetic fibers containing more than 0.5% by weight of inorganic filler gives sweat absorption function, quick-drying function, cooling function and sun-blocking property, and makes the surface in contact with the skin comfortable. It is possible to realize a circular knitted fabric having both the functionality and the functionality as clothes at the same time. That is, the single yarn denier exceeds 1 denier on the surface that comes into contact with the skin.
Since it was formed into a vertical stripe-like structure using a relatively thick synthetic fiber processed yarn having a denier or less, it has high sweat absorption and a high cooling effect. Further, since 50% or more of the stitches of the back surface structure (the side in contact with the outside air) are knitted in the form of two threads, the fiber density is relatively high and the surface area is large, which is excellent in quick drying. Further, since the inorganic filler is contained in an amount of more than 0.5% by weight in 50% or more of the stitches of the back surface structure, it is also excellent in the ability to block sunlight.

As a use, it is most suitable for a shirt cloth for outdoor sports such as golf under the sun, and has a functionality which cannot be obtained by a conventional circular knitted fabric having 100% synthetic fibers or a high mixing ratio of synthetic fibers. A circular knitted fabric having comfort is obtained.

[Brief description of drawings]

FIG. 1 is a circular knitting structure diagram of an embodiment of the present invention.

[Explanation of symbols] (1) to (12) Knitting order and texture 1 repeat a to f Dial side needles A to F Cylinder side needles X Single filament fineness polyester filament fiber processed yarn Y Y Titanium oxide Containing polyester filament Fiber processing yarn Z Fine denier polyester filament Fine loop yarn

Claims (5)

[Claims] 1. A multi-layer circular knitted fabric having different knitting structures on the front surface and the back surface, wherein 30% or more of the stitches of the surface have a dot-shaped concave space, and a single yarn denier has 1 denier. Synthetic fiber processed yarn having a cross-over 6 denier or less is knitted by one yarn to form a stitch, and 50% or more of the stitches of the back surface are knitted in two threads and the stitches of the back surface texture A multi-layer circular knitted fabric comprising a thermoplastic synthetic fiber containing an inorganic filler in an amount of more than 0.5% by weight in 50% or more of the above. 2. The front surface and the back surface are partially connected by yarns, and the ratio of the thread amount W _s occupying the front surface to the thread amount W _b occupying the back surface is expressed by the formula [2 · W _s ≤W _b ]. The multi-layer circular knitted fabric according to claim 1, wherein 3. The multi-layer circular knitted fabric according to claim 1, wherein a thermoplastic synthetic fiber containing an inorganic filler in an amount of more than 0.5% by weight is used in the range of 30% or more and 70% or less of the back surface stitch area. Ground. 4. A thermoplastic synthetic fiber containing an inorganic filler in an amount of more than 0.5% by weight contains a relatively large amount of the inorganic filler in the core component and contains no or a relatively small amount of the inorganic filler in the sheath component. The multi-layer circular knitted fabric according to claim 1, which is a core-sheath composite fiber containing. 5. The yarn constituting the back surface design has a yarn amount ratio of 3
The multi-layer circular knitted fabric according to claim 1, wherein a fine loop yarn containing an ultrafine yarn having a single yarn denier of 0.1 to 1 denier within a range of 0% by weight to 70% by weight is used.