JPH0625931A - Conjugate multifilament yarn - Google Patents

Abstract

PURPOSE:To provide conjugate multifilament yarn suitable as a material for a wear comfortable even in a state wet with sweat. CONSTITUTION:The conjugate multifilament yarn is composed of unit conjugate filaments consisting of polyester filaments having a thickness <=0.8d and arranged mainly in the inner layer and polyester filaments having a thickness of >1.0 d and <=3.0d and arranged mainly in the outer layer. A plurality of the unit conjugate filaments are collected and interlaced with each other.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a composite multifilament yarn which is suitable as a material for clothes which is comfortable against sweat, particularly as a material for women's clothing.

[0002]

2. Description of the Related Art Conventionally, many polyester multifilament yarns have been used in the field of women's clothing. This is because the texture of polyester multifilament yarn such as drape, touch, and gloss is suitable for women's clothing, but all of them emphasize sensitivity and are not often considered from the viewpoint of comfort. There wasn't.

[0003]

In particular, ordinary polyester multifilament yarns are inherently hydrophobic fibers, have no function of absorbing water and moisture, and have a feeling of weaving or stickiness caused when they are put on clothes. Although it may be improved a little depending on the design and design of the knit, it was not avoided due to the nature of the material. In addition, since the beauty of appearance is an important point in the field of women's clothing, it is not comfortable with sweat for the reasons described above, but research on such points has not progressed so much. The present invention has been accomplished based on the finding that, in addition to the structure of the fabric, the structure of the yarn itself has a great influence in order to make a comfortable and comfortable garment. The challenge is to provide.

[0004]

The present invention adopts the following means in order to solve the above problems. That is, the present invention is
A polyester composite having at least a single yarn fineness of 0.8 denier or less is mainly arranged in the inner layer, and a unit composite filament having a single yarn fineness of more than 1.0 denier and not more than 3.0 denier is mainly arranged in the outer layer. , A multi-filament yarn which is characterized in that a plurality of yarns are bundled, entwined and entangled.

The present invention will be described in detail below. First, the polyester filament arranged in the inner layer of the unit composite filament has a single yarn fineness of 0.8 denier or less, preferably less than 0.8 denier, more preferably 0.1 denier.
It is good to be ~ 0.7 denier. This is because the liquid phase sweat is transferred from the outer layer on the skin side to the inner layer by utilizing the capillary phenomenon of the ultrafine fibers in the inner layer, and the heat of the liquid phase sweat itself is taken to be vaporized.

In order to effectively generate the capillary phenomenon, the fineness must be 0.8 denier or less. If it exceeds 0.8 denier, sweat transfer is less likely to occur. Also,
Since the fibers themselves do not retain sweat, they retain the sweat in the interstices between the fibers, and the heat of the sweat itself is taken to be vaporized, so that the fibers need to be hydrophobic fibers. Further, polyester filaments having a denier of 0.8 or less usually have a yarn content of 10 to 60% by weight,
It is preferably 30 to 60% by weight. This is because if it is less than 10% by weight, the capillarity is unlikely to occur, and if it exceeds 60% by weight, it becomes difficult to diffuse sweat.

Next, the single yarn fineness of the polyester filament arranged in the outer layer is more than 1.0 denier and 3.0.
Denier or less is preferable, and 1.0 is more preferable.
A denier of 2.0 denier or less is preferable. When the single yarn fineness of the polyester filament of the outer layer is 1.0 denier or less, the transfer of liquid phase sweat to the inner layer is not smoothly performed. Further, when it exceeds 3.0 denier, the texture of the fabric becomes rough, which is not the intention of the present invention.

Further, the polyester filament arranged in the outer layer of the unit composite filament must be a hydrophobic fiber in order to diffuse liquid phase sweat to the fiber surface and transfer it to the inner layer. Moreover, the polyester filament of the outer layer is usually preferably 40 to 90% by weight of the whole fiber.
If it is less than 40% by weight, sweat will not easily diffuse, and if it exceeds 90% by weight, capillarity will be less likely to occur.

In the composite multifilament yarn of the present invention, at least a plurality of the unit composite filaments are bundled and entangled, and there are a plurality of unit composite filaments each having a thick outer filament and a thin inner filament. For this reason, the liquid-phase sweat on the skin side is smoothly transferred from outside-in-outside, and outside-in-outside-outside, so that moisture in the skin and clothes is released quickly, and comfortable humidity can be maintained. Furthermore, by changing the physical properties of the unit composite filament such as denier, average denier, heat shrinkage rate, heat elongation, and cross section, swelling and bulkiness as a composite multifilament yarn are given. In addition, is the composite multifilament yarn of the present invention capable of imparting new properties by being combined with other yarns within a range that does not impair the performance? It is. Of course, it may be composed of only the plurality of unit composite filaments.

Further, in the composite multifilament yarn of the present invention, at least two unit composite filaments, preferably three or more, must be bundled and entangled. At this time, the unit composite filaments do not need to be particularly focused and entangled, but the unit multifilaments need to be focused and entangled. This is 0.8, as the unit compound filament has detailed.
The fineness filament of denier or less is mainly in the inner layer,
This is because a large fineness filament having a denier of 1 denier or more is required mainly in the outer layer. Therefore, if the filaments in the inner and outer layers are disturbed too much, the effect of the present invention is difficult to be exhibited. Focusing processing must be performed in terms of process passability.

As the converging and entanglement treatment, converging by twisting in which the filament is not significantly disturbed is preferable, but it is not always limited to this. In the case of focusing by twisting, the number of twists is preferably K ≧ 2000 when expressed by a twist coefficient K, but when the number of twists is too large, there is no space between filaments, and K ≦ 35,000 is preferable. Furthermore, in order to exert the effect of the present invention, K is preferably 30.
00-30000 is good. Here, the twist coefficient K is the number of twists ×
Calculated as D ^1/2 . Here, D is the total denier of the composite multifilament yarn.

The method for producing the composite multifilament yarn is not particularly limited, but a method of ply-twisting a plurality of unit composite filaments which are composite while overfeeding one polyester multifilament, a fine fiber polyester filament at the core, A method of combining multiple sea-island composite yarns with a large fineness polyester filament in the outer layer, a fine filament polyester filament in the core with medium fineness in the outside, and a polyester filament with more than 1 denier in the outermost layer Examples thereof include a method of compounding a plurality of multi-layered structured yarns, a method of including these unit compound filaments, or a method of compounding these with another yarn.

[0013]

【Example】

Example 1, Comparative Example 1 1 for 10d / 36f polyester multifilament
+7 for 5d / 10f polyester multifilament
25d / 46 under the false twisting condition of twist number 5000T / M and heater temperature 200 ° C while overfeeding with
The unit composite filament of f is manufactured, and further four unit composite filaments are combined and twisted with a twist coefficient of 5500 to obtain 1
00d / 184f composite multifilament yarn was produced. For comparison, false twisting was carried out by applying a twist coefficient of 5500 to a 100d / 36f polyester multifilament. Next, these were used for warp and weft, respectively, and woven into a 2/1 twill design with a warp density of 150 yarns / inch and a weft density of 95 yarns / inch, and dyeing was performed under normal processing conditions.
The fabric had a basis weight of 105 g / m ² , and the texture was excellent in bulkiness, drapeability, and crispness. These fabrics were evaluated using an in-clothes climate simulation device (see Japanese Patent Laid-Open No. 58-21164). Environmental conditions of clothing climate simulation device at 20 ° C, 65% R
H, simulated skin temperature was set to 35 ° C., and a state in which one blouse was worn was assumed. The results of the maximum humidity in clothes are shown in Table 1 below.

[0014]

[Table 1]

The comfort range of the maximum clothes humidity, which leads to comfort and comfort against sweat, is 50 ± 10%. As is clear from Table 1, the present invention is within the range, but a comparative example. Those of which are out of the range were unsatisfactory in terms of comfort.

[0016]

The composite multifilament yarn of the present invention is
It is suitable as a material for clothes that is comfortable against sweat, especially as a material for women's clothing, and shows a favorable in-clothing climate in the field of women's clothing where sensitivity has been emphasized.

Claims (1)

[Claims] 1. A polyester filament having at least a single yarn fineness of 0.8 denier or less is mainly arranged in an inner layer, and a polyester filament having a single yarn fineness of more than 1.0 denier and not more than 3.0 denier is mainly arranged in an outer layer. A composite multi-filament yarn characterized in that a plurality of unit composite filaments are bundled and entangled.