JPH06184885A - Knit fabric - Google Patents

Abstract

PURPOSE:To produce knit fabric having a single knit texture, free from sticki ness even in sweated state, quickly dryable and having excellent clothing com fort. CONSTITUTION:The fabric is plain knit fabric composed of front yarn A and back yarns B1, B2. The back yarns B1 and B2 are alternately plated relative to the front yarn A in alternate courses. At least 30% of the front yarn A is made of cotton and the back yarn B1 is polyester multifilament yarn having a single fiber fineness of >=2de. The back yarn B2 is multifilament yarn composed of a polyester and nylon and having a single fiber fineness of <=1de. The yarns satisfy the formula DA>=DB1>=1.5DB2 wherein DA, DB1 and DB2 are total deniers of the front yarn A, back yarn B1 and back yarn B2, respectively.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a knitted fabric which is excellent in comfort and is fast-drying without being sticky even if sweated, especially in clothing for direct use on the skin, such as innerwear and sportswear.

[0002]

2. Description of the Related Art Various methods have already been proposed as a method for producing a cloth that does not become sticky even if it sweats and dries quickly. Among them, what is considered to be important is the skin when the cloth absorbs sweat. It is a device that contains less sweat on the side close to and distributes more sweat on the outside. As a means to do so, the entire cloth is water-absorbed and the back surface of the cloth is partially (patterned) provided with a water repellent agent. Also, hydrophobic fibers are used on the side close to the skin and hydrophilic on the outside. There are some that use fibers.

These have achieved certain results in improving the stickiness during sweating. However, it has not been possible to accelerate the drying of perspiration by diffusing the perspiration into a wider area or to sufficiently cope with the perspiration that occurs one after another. The reason is to absorb sweat in order to spread it over a large area,
It is absolutely necessary to use fibers with excellent transportability. However, care must be taken when using this type of fiber. That is, this kind of fiber is also excellent in the ability to retain sweat, and when used in contact with the skin, it gives a sticky feeling to the skin. Therefore, this seed fiber must be used in a position where it does not come into contact with the skin.

If this is limited to the knitted fabric, a double knit structure can be solved to a considerable extent by using it for a middle yarn. However, the double knit cloth is inevitably thick and heavy,
It is often unsuitable for innerwear and sportswear that need to be lightweight.

On the other hand, since the single-knit cloth is likely to be a lightweight and comfortable material, if the single-knit fabric can be applied so as not to come into contact with the skin, the fiber having an excellent ability to absorb and transfer the sweat is excellent in comfort. It becomes a material for clothing. However, single knit has little structural change, and it is particularly difficult to use certain fibers hidden from the front and back.

[0006]

SUMMARY OF THE INVENTION An object of the present invention is to construct a single knit in order to realize a single knit which is a cloth which is not sticky even when sweated and dries quickly. Even more specifically, in the single-knit fabric reversible design of the plain cloth, under the constraint of the knitted fabric that only two types of yarns, the front yarn and the back yarn, can be used, the aesthetic (color,
While using general-purpose fibers with an emphasis on luster and texture, the yarns that have water-absorbing, diffusing, and water-retaining functions for the back yarn and the yarns that give a dry touch skillfully coexist, resulting in an unprecedentedly high knit fabric overall. In order to give the characteristics of water absorption, high diffusion and high dry touch, it is to be investigated how the single knit should be specifically constructed.

[0007]

It does not achieve the present invention the above object SUMMARY OF THE INVENTION Therefore, a sheeting reversible consisting yarn A and the back yarn B _1, B ₂ Prefecture, back yarn B _1, B ₂ 1 The surface yarn A is plated alternately every course, and the surface yarn A is
Is made up of yarns of which 30% or more is cotton,
The back yarn B ₁ is a polyester multifilament yarn having a monofilament thickness of 2 denier or more, and the back yarn B ₂ is a multifilament yarn made of polyester and nylon having a monofilament thickness of 1 denier or less. Thread A, back thread B ₁ ,
The present invention proposes a knitted fabric that satisfies the relationship of D _A ≧ D _B1 ≧ 1.5D _B2 when the total fineness of the yarn of B ₂ is D _A , D _B1 , and D _B2 , respectively.

The role of each yarn in the present invention will be described. The front thread A has a function of absorbing sweat, retaining water, and evaporating sweat toward the outside air. Therefore, it is necessary for the properties of the yarn to be hydrophilic, and it is necessary for the yarn itself to be cotton or a yarn containing cotton. The content of cotton is required to be 30% or more, particularly preferably 50% or more. Below this value, the water absorption and water retention of cotton may not be fully exhibited. Especially composite with hydrophobic fiber such as polyester (mixed spinning, mixed twisting,
It is remarkable when they are aligned.

In the case where cotton and other fibers are compounded, other composite fiber materials include not only the above polyester fibers but also synthetic fibers such as nylon fibers and acrylic fibers, and recycled fibers such as rayon and acetate. It may be a natural fiber such as hemp or wool.

The form of the surface yarn A includes spun yarn, intertwisted yarn or spun yarn of spun yarn and filament yarn, and special composite yarn of short fibers and filaments.

The backing thread B ₁ is relatively most hydrophobic, and the backing thread B ₁ must be dry on the skin surface with little water retention even when sweating. For that purpose, a filament is preferably a highly hydrophobic polyester and the filament is not so well bundled. Although spun yarn has good binding properties and is hydrophobic, it is relatively unsuitable because it retains water relatively easily.

If the monofilament of the filament of the back yarn B ₁ is too thick, the texture to the skin will not be good, and if it is too thin, water retention will be good, which is not preferable. Therefore, the thickness of the single fiber needs to be 2 denier or more, and preferably 5 denier or less.

The back yarn B ₂ is a yarn capable of absorbing and diffusing perspiration, and as a fiber, it is relatively hydrophilic with respect to the back yarn B ₁ and absorbs sweat by capillary action. It must be excellent in water retention and good in water retention. For that purpose, it has been found that the composite yarn composed of polyester and nylon is most preferable because the single fiber has a thickness of 1 denier or less.

Here, the polyester includes polyethylene terephthalate, polybutylene terephthalate and polyhexamethylene terephthalate, and polyethylene terephthalate containing 2 to 15 mol% of isophthalic acid and isophthalic acid containing a metal sulfonate group are used. ~
Examples thereof include polyethylene terephthalate containing 15 mol%. Nylon is 6 nylon, 6,6
Examples include nylon and 6,10 nylon.

A composite yarn composed of polyester and nylon monofilaments each having a denier of 1 denier or less is superior in water absorbability to a yarn composed of monofilament monofilaments of 1 denier or less of polyester alone. For this reason, the present inventors have an advantage in the water transportability (a phenomenon in which water migrates from a portion having a higher water content to a portion having a lower water content) in a mixed state of relatively hydrophilic and hydrophobic fibers. I think that's why.

As such a yarn, after polyester and nylon are spun in a composite manner and then each yarn is divided into 1
A typical example is a yarn of a so-called ultrafine yarn of denier or less. The denier of each single fiber is preferably as thin as possible.

Next, regarding the thickness (total fineness) of the back yarns B ₁ and B ₂ , it is essential that B ₁ is relatively thick and B ₂ is thin. The reason is that the back thread B ₁ does not contain sweat and the back thread B ₂ contains sweat, so that when the back thread B ₂ touches the skin, the back thread B ₂ becomes sticky and feels wet and is not comfortable to wear. . For that purpose, it is necessary that the back thread B ₁ containing no sweat contacts the skin and the back thread B ₂ does not contact the skin. For that purpose, it is necessary that the total fineness of the back yarn B ₁ is thicker than that of the back yarn B ₂ . This is because the thick thread preferentially touches the skin and the thin thread hides in the thick thread and does not touch the skin. The difference in thickness requires a relationship of D _B1 ≧ 1.5D _B2 . If D _B1 <1.5D _B2 , the skin is thread B ₂
It is sticky because it comes into contact with and feels wet, making it uncomfortable to wear.

The thickness relationship between the front yarn A and the back yarn B ₁ is D _A ≧ D
Must be _B1 . If D _A <D _B1 , the reversible property between the front yarn and the back yarn is lost, and the back yarn often protrudes to the front, impairing aesthetics. Further, it is preferable that the sweat is unevenly distributed to the side in contact with the outside air from the viewpoint of comfort, and also from this point, it is more preferable that the front yarn is relatively thick, and it is necessary that the front yarn is thicker.

[0019]

When the knitted fabric of the present invention is worn, the skin is mainly the back yarn B
Touching ₁ . This is because the back thread B ₁ is sufficiently thicker than the back thread B ₂ . This is also the case when the skin is sweating. By the way, when sweating, the back yarn B ₂ which is relatively hydrophilic and easily absorbs sweat due to the capillary effect
Most of them are sucked. As a result, the back yarn B ₁ holds almost no sweat and is in a dry state. That is, the skin is in contact with the dry back yarn B ₁ and does not feel sticky. Sweat sucked back yarn B ₂ is to transfer the sweat to widely spread not face yarn A far perspiration by water absorption effect of the capillary effect and face yarn A of the back yarn B _2. As a result, sweat tends to dry quickly without remaining at the point where the sweat is absorbed. Also, since sweat permeates quickly over a large area on the surface, the rate of evaporation to the outside air is fast and the rate of drying of the entire knitted fabric is fast.

The present invention will be described in more detail with reference to the following examples, but the present invention is not limited to these examples. Example 1: Using a 28 gauge, single knitting machine 3FA manufactured by Fukuhara Seiki, a tenjiji reversible was manufactured using the following yarn. Front yarn: A; Cotton 40/1 Back yarn: B ₁ ; Polyester filament 150 denier (d) -48 filament (f) 2 heater processed yarn B ₂ ; Kuraray lamp yarn 75d-24f 2 heater processed yarn In addition, the Kuraray lamp yarn is a composite fiber (conjugate fiber) having a structure in which a polyester component and a nylon component are arranged in a staggered manner when viewed in a cross section of the fiber. It is a split type composite yarn in which the composite is unraveled and divided, and each is a microfiber of both polyester fiber and nylon fiber of 0.2 to 0.3 denier. This knitted fabric was scoured and bleached by a conventional method and then dyed white. Upon dyeing, the entire knitted fabric was subjected to water absorption processing using a water absorption processing agent SR1000 (made by Takamatsu Yushi Co., Ltd.).

Example 2 Using a 28 gauge, single knitting machine 3FA manufactured by Fukuhara Seiki, a Tenjiku reversible was manufactured using the following yarn. Front yarn: A; Cotton 40/1 Back yarn: B ₁ ; Polyester filament 120d-48
f 2-heater processed yarn B ₂ ; Kuraray lamp yarn 50d-24f 2-heater processed yarn The knitted fabric was processed in accordance with Example 1.

Comparative Example 1: Using a 28 gauge, single knitting machine 3FA manufactured by Fukuhara Seiki, a Tenjiku reversible was manufactured using the following yarns. That is, in this example, D _B1 ≧ 1.5D _B2
This is an example that does not satisfy. Front yarn: A; Cotton 40/1 Back yarn: B ₁ ; Polyester filament 100d-72
f 2-heater processed yarn B ₂ ; Kuraray lamp yarn 75d-24f 2-heater processed yarn The knitted fabric was processed in accordance with Example 1.

Comparative Example 2: Using a 28 gauge, single knitting machine 3FA manufactured by Fukuhara Seiki, a Tenjiku reversible was manufactured using the following yarn. This example is also an example when D _B1 ≧ 1.5D _B2 is not satisfied. Front yarn: A; Cotton 40/1 Back yarn: B ₁ ; Polyester filament 75d-24f
2 heater processed yarn B ₂ ; lamp yarn manufactured by Kuraray Co., Ltd. 75d-24f 2 heater processed yarn The knitted fabric was processed according to Example 1.

Example 3 Using a 28 gauge, single knitting machine 3FA manufactured by Fukuhara Seiki, a Tenjiji reversible was manufactured using the following yarn. Front yarn: A; Ester / cotton 40/1 (cotton 50%) Back yarn: B ₁ ; Polyester filament 100d-48
f 2-heater processed yarn B ₂ ; Kuraray lamp yarn 50d-24f 2-heater processed yarn The knitted fabric was processed in accordance with Example 1.

Comparative Example 3: Using a 28 gauge, single knitting machine 3FA manufactured by Fukuhara Seiki, a tenjiji reversible was manufactured using the following yarn. That is, this example is an example in which the mixing ratio of cotton in the surface yarn A is out of the range of the invention. Surface yarn: A; Ester / cotton 40/1 (Ester 75
%, 25% cotton) Back yarn: B ₁ ; Polyester filament 100d-48
f 2-heater processed yarn B ₂ ; Kuraray lamp yarn 50d-24f 2-heater processed yarn The knitted fabric was processed in accordance with Example 1.

Comparative Example 4 Using a 28 gauge, single knitting machine 3FA manufactured by Fukuhara Seiki, a Tenjiku reversible was manufactured using the following yarn. That is, this example is an example in the case where D _A ≧ D _B1 is not satisfied. Front yarn: A; Cotton 60/1 Back yarn: B ₁ ; Polyester filament 100d-48
f 2-heater processed yarn B ₂ ; Kuraray lamp yarn 50d-24f 2-heater processed yarn The knitted fabric was processed in accordance with Example 1.

Comparative Example 5 Using a 28 gauge, single knitting machine 3FA manufactured by Fukuhara Seiki, a Tenjiji reversible was manufactured using the following yarn. That is, this example is an example in which B ₂ is 100% polyester, not the yarn usage specified in the present invention. Front yarn: A; Cotton 40/1 Back yarn: B ₁ ; Polyester filament 120d-48
f 2-heater processed yarn B ₂ ; polyester filament 75d-96f 2-heater processed yarn The knitted fabric was processed in accordance with Example 1.

Comparative Example 6 Using a 28 gauge, single knitting machine 3FA manufactured by Fukuhara Seiki, a Tenjiku reversible was manufactured using the following yarn. That is, this example is an example in which only one type of yarn is used as the back yarn. Front yarn: A; Cotton 40/1 Back yarn: B ₁ , B ₂ ; 2 heater processed yarn of polyester filament 120d-48f Both knitted fabrics were processed according to Example 1.

Comparative Example 7 Using a 28 gauge, single knitting machine 3FA manufactured by Fukuhara Seiki, a tenjiji reversible was manufactured using the following yarn. This example is also an example in which only one type of thread is used as the back thread. Front thread: A; Cotton 40/1 Back thread: B ₁ , B ₂ ; both lamp threads manufactured by Kuraray Co., Ltd. 50d
-24f 2-heater processed yarn The knitted fabric was processed according to Example 1.

The drying speed and tackiness of each of the above Examples and Comparative Examples were evaluated by the following methods. (1) Drying speed: Under standard conditions, 0.2 cc of water drop is dropped on a plastic film, and a cloth is gently covered on the plastic film so that the back surface comes into contact with the water drop. To measure. The drying speed is expressed by the time (minutes) required for half of the dropped water droplets to dry [hereinafter referred to as "1/2 drying time"]. (2) Stickiness (a): Place the cloth on the rubber mat with the back side facing upward and drop 0.1 cc of water droplets on the cloth surface. When 30 seconds have passed since dropping, a filter paper of known weight (W ₁ g) was placed, and a cylindrical metallic paper weight ( ₁ Kg) was placed on the filter paper.
After standing for 0 second, the paperweight and the filter paper are removed, and the weight (W ₂ g) of the filter paper that has absorbed water is quickly measured. It is determined that the smaller the value of the following expression X, the less the stickiness. X = (W ₂ −W ₁ ) /0.1×100 (3) Stickiness (b): Place the cloth on the rubber mat with the back side facing upward, and drop 0.1 cc of water drop on the cloth surface. When 30 seconds have passed since the liquid was dropped, the fingertip of the index finger touches it, and the wet feeling is evaluated by touch. The evaluation ranks are 4 sticky large, medium, small, and none.

Table 1 shows the evaluation results of each Example and Comparative Example by the above-mentioned evaluation methods, and it is shown that the Comparative Examples are all inferior in the drying property and the tackiness.

[0032]

[Table 1]

[0033]

EFFECTS OF THE INVENTION According to the present invention, it is possible to obtain a cloth having a tenjiji reversible structure, which is a thin knitted fabric, which is not sticky even when sweated during wearing, and which is fast in drying and excellent in comfort.

Claims (1)

[Claims] 1. A sheeting reversible consisting yarn A and the back yarn B _1, B ₂ Prefecture, back yarn B _1, B ₂ is plated against face yarn A alternately one course every , Front thread A
Contains 30% or more of cotton, the back yarn B ₁ is a polyester multifilament yarn having a single fiber thickness of 2 denier or more, and the back yarn B ₂ is a polyester having a single fiber thickness of 1 denier or less. A multifilament yarn made of nylon, where D _A ≧ D _B1 ≧ 1.5 when the total fineness of the front yarn A, the back yarn B ₁ and B ₂ is D _A , D _B1 and D _B2 , respectively.
A knitted fabric that satisfies the relationship of D _B2 .