JP2009144259A - Knitted fabric for underwear clothing - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To provide a new knitted fabric for underwear clothing, which positively achieves heat-retaining properties and provides a soft feeling and moisture absorbing and releasing properties. <P>SOLUTION: The knitted fabric for underwear clothing includes a reversible structure in which a surface layer containing a solvent spun cellulose fiber and a back layer containing a sunlight selectively absorbing fiber are tucked, The knitted fabric has an excellent soft feeling in touch and excellent moisture absorbing and releasing properties by using the solvent spun cellulose fiber. The heat-retaining properties of a knitted fabric are improved by using a sunlight selectively absorbing fiber. <P>COPYRIGHT: (C)2009,JPO&INPIT

Description

  The present invention relates to a novel knitted fabric for underwear.

  Conventionally, a knitted fabric of a tengu tissue, which is appropriately combined with cotton, nylon, etc., has been widely used as an underwear.

In particular, in winter, skin clothing having heat retaining properties is preferred, and therefore a knitted fabric that employs a bag knitted fabric instead of a tentacle tissue is applied to the skin clothing. For example, Patent Document 1 discloses a three-layer structure knitted fabric in which a surface layer uses a polyester wooly yarn, a polyester hollow fiber as a binding yarn, and a cotton yarn as a back layer.
JP 2002-235264 A

  However, the knitted fabric described in Patent Document 1 is intended to achieve heat retention by the air contained in the knitted fabric, and there is a difficulty in maintaining heat retention in an outdoor environment in winter.

  The present invention eliminates the disadvantages of the prior art as described above, and provides a novel knitted fabric for skin clothing that can positively achieve heat retention and can also realize soft feeling, moisture absorption and release properties, etc. The issue is to provide.

  As a result of intensive studies to solve the above problems, the present inventor can realize excellent heat retention by using sunlight selective absorbent fibers, and further, by using solvent-spun cellulose fibers, excellent texture and absorption. The present inventors have found that it is possible to realize moisture-releasing properties and that the knitted structure can be stabilized by tacking with nylon filament yarn.

  That is, the gist of the present invention is a knitted fabric for an undergarment having a reversible structure in which a surface layer containing solvent-spun cellulose fibers and a back layer containing sunlight selective absorbing fibers are tacked with nylon filament yarns. .

  According to the present invention, it is possible to provide a novel knitted fabric for skin clothing that can positively realize heat retention and can also realize soft feeling, moisture absorption and release properties, and the like.

  Hereinafter, the present invention will be described in detail.

  The knitted fabric for skin clothing of the present invention is a knitted fabric having a reversible structure in which a front surface layer and a back surface layer are connected by a binding yarn. In general, the surface layer refers to a surface located on the outside air side in the knitted fabric, and the back surface layer refers to a surface located on the body side. However, since a reversible structure is adopted in the present invention, the present invention is not limited to this. If necessary, the surface layer is positioned on the body side and the back surface layer is positioned on the outside air side.

  Solvent-spun cellulose fibers are used for the surface layer in the present invention. Thereby, the texture of the knitted fabric can be made excellent in the soft feeling and can be made excellent in moisture absorption and desorption.

  The solvent-spun cellulose fiber is a fiber obtained by dissolving raw material pulp in a specific solvent. In general, solvent-spun cellulose fibers are prepared by dissolving pulp in a solvent such as N-methylmorpholine-N-oxide, dimethyl sulfoxide, N-methylpiperidine-N-oxide, dimethylacetamide, and then filtering to remove impurities. Thereafter, it can be obtained by dry spinning or wet spinning.

  In the present invention, the solvent-spun cellulose fiber may be used in the long fiber state after spinning, but considering the texture of the knitted fabric, it is preferably cut into a short fiber state and then used as a spun yarn. . In this case, from the viewpoint of obtaining spun yarn with less unevenness, the fiber length of the short fibers is preferably 30 to 60 mm, and the fineness is preferably 1.0 to 4.0 dtex. Further, the thickness of the spun yarn is preferably 30 to 60 (English cotton count). In addition to a single yarn, a double yarn or a triple yarn is used as necessary.

  The surface layer in the present invention is basically most preferably formed only from solvent-spun cellulose fibers, but other fibers may be included as necessary. Other fibers are not particularly limited, and any of natural fibers, regenerated fibers, and synthetic fibers can be used. However, in consideration of the texture of the knitted fabric, the surface layer preferably contains 40% by mass or more of solvent-spun cellulose fibers.

  On the other hand, a sunlight selective absorbing fiber is used for the back layer in the present invention. Thereby, the heat retention of a knitted fabric can be made excellent.

  Examples of the solar selective absorbing fiber in the present invention include fibers made of a fiber-forming polymer in which transition metal carbide fine particles having a light absorption heat conversion function are kneaded.

  The fine particles having a light absorption heat conversion function are substances that absorb visible light and near-infrared light energy, convert the energy into heat energy, and emit, and generally correspond to fine particles made of transition metal carbide.

  In addition, as the fiber-forming polymer, a polyamide polymer represented by nylon 6 or nylon 66, a polyester polymer represented by polyethylene terephthalate, a polyolefin polymer represented by polyethylene or polypropylene, a polyacrylonitrile polymer, Examples thereof include polyvinyl alcohol polymers and polyvinyl chloride polymers.

  Although it does not specifically limit as thickness of sunlight selective absorption fiber, 33-167 dtex is preferable as a yarn fineness.

  Moreover, as a mass ratio to the whole knitted fabric of sunlight selective absorption fiber, 3-50 mass% is preferable from a heat retention viewpoint.

  In the knitted fabric for skin apparel of the present invention, the surface layer containing the solvent-spun cellulose fiber and the back layer containing the solar selective absorbent fiber are connected by a specific binding yarn.

  In the present invention, nylon filament yarn is used as the binding yarn, and the two layers are connected while being tacked. Specifically, fibers capable of forming both layers are supplied from the cylinder side and dial side of the circular knitting machine, and knitting is carried out while tacking with nylon filament yarn.

  The knitted fabric of the present invention can exhibit characteristics suitable for skin clothing by having the above-described configuration. In particular, since it has heat retention, it is suitable for winter use.

  Next, the present invention will be specifically described with reference to examples.

Example 1
The surface layer is made of solvent-spun cellulose fiber with a twist factor of 3.5 and a thickness of 40 (English cotton count), and the rear layer is made of woolly processed yarn made of sunlight selective absorbent fibers with a yarn fineness of 56 dtex. 78 dtex nylon filament yarns were used. For knitting, a double circular knitting machine having a hook diameter of 76 cm and a needle density of 24 G was used, and both layers were connected while being tucked with a binding yarn. As the short fibers constituting the solvent-spun cellulose fibers, short fibers having a fiber length of 38 mm and a fineness of 1.3 dtex were used.

  Next, the obtained knitted fabric was sequentially subjected to scouring relaxation, liquid dyeing, and finish setting to obtain a knitted fabric for skin clothing of the present invention.

(Comparative Example 1)
A knitted fabric was obtained in the same manner as in Example 1 except that the cotton yarn having the same number was used instead of the 40th solvent-spun cellulose fiber.

(Comparative Example 2)
A knitted fabric was obtained in the same manner as in Example 1 except that a wooly processed yarn consisting only of polyethylene terephthalate having the same yarn fineness was used instead of the woolly processed yarn consisting of 56 dtex sunlight selective absorbing fiber.

(Comparative Example 3)
In the circular knitting machine in Example 1, a knitted fabric with a milling structure was knitted using only a 40th-thick cotton yarn, and then a knitted fabric was obtained by sequentially scouring, liquid dyeing, and finishing setting.

  As a result of sensory evaluation of the above knitted fabric, texture and moisture absorption and desorption, the knitted fabrics according to Example 1 and Comparative Example 2 were superior to the knitted fabrics according to Comparative Example 1 and Comparative Example 3 in both performances. .

As for heat retention, 100 W white for photography as an energy source using Thermoviewer JTG-4200 (manufactured by JEOL Ltd., infrared sensor) in a room kept at a constant temperature and humidity at a room temperature of 20 ° C. and a humidity of 65%. Evaluation was made by measuring the surface temperature of the knitted fabric when irradiated with a light source. As a result, it was confirmed that the knitted fabrics according to Example 1 and Comparative Example 1 had a higher surface temperature and excellent heat retention than the knitted fabrics according to Comparative Example 2 and Comparative Example 3.

Claims (1)

A knitted fabric for skin apparel comprising a reversible structure in which a surface layer containing solvent-spun cellulose fibers and a back layer containing sunlight selective absorbing fibers are tacked with nylon filament yarns.