JP2019151941A - Socks having high heat-insulating property - Google Patents

Abstract

To provide a socks having extremely high heat-insulating property (having a single structure rather than a multiple structure).SOLUTION: A sock 100 is formed of a single-wall cylindrical knitted fabric from an opening part 110 (via a body part 120) through a heel part 130 (via a foot part 140) to a toe part 150. In the cylindrical knitted fabric, a back-side knitted fabric (the back side of the knitted fabric of the body part 120 and the foot part 140) contacting the skin in the cylindrical knitted fabric has a form of a pile backing 160 where a yarn containing a polypropylene fiber which is additionally inserted by cut-boss knitting and is cut appears in a state of a short pile.SELECTED DRAWING: Figure 2

Description

  The present invention relates to a sock composed of a knitted fabric, and more particularly to a sock with extremely high heat retention (even if not multiple).

  Conventionally, for cold protection, sports use, work use, etc., a double knitted fabric with an inner cylinder and an outer cylinder formed from a tubular knitted fabric connected at the mouth rubber part and stitched together at the toe part There are socks. This double sock is made by folding back the inner cylindrical body and the outer cylindrical body having substantially the same shape formed from a substantially cylindrical knitted fabric continuous at the mouth rubber portion at the mouth rubber portion, and sewing the toe portions of both cylindrical bodies. It is a sock that is formed entirely in double.

  Japanese Patent Application Laid-Open No. 2014-163017 (Patent Document 1) filed by the applicant of the present application discloses a double sock having a very high heat retaining property by fully utilizing the thermal characteristics of a fiber material. In the double socks disclosed in Patent Document 1, an inner cylinder body and an outer cylinder body having substantially the same shape formed from a substantially cylindrical knitted fabric continuous at the mouth rubber portion are folded back at the mouth rubber portion, and both cylinders are formed. A double sock in which a toe part of a body is sewn, and a pile is provided on a surface of the inner cylinder facing the outer cylinder, and a pile is provided on a surface of the outer cylinder facing the inner cylinder. The thermal conductivity of the fiber knitting the pile provided in the inner cylinder is lower than the thermal conductivity of the fiber knitting the pile provided in the outer cylinder.

JP, 2014-163017, A

  The double socks disclosed in Patent Document 1 described above are well received because sufficient heat retention is realized by fully considering the thermal characteristics of the knitting yarn (fiber material). The applicant of the present application is not a sock composed entirely of doubles, which is the main premise of the double socks disclosed in Patent Document 1, but is not a multiple including doubles (ie, single), and has extremely high heat retention. We have developed the socks we have eagerly developed.

  The present invention has been developed in view of the above-described problems, and an object of the present invention is to provide a sock having a very high heat retaining property with a single structure instead of a conventional double structure.

In order to achieve the above object, the sock with high heat retention according to the present invention employs the following technical means.
That is, the sock according to the present invention is a highly heat-resistant sock composed of a tubular knitted fabric from the wearer's mouth portion through the heel portion to the toe portion, and the back side knitted fabric that contacts the skin in the tubular knitted fabric However, a yarn containing polypropylene knitted by being additionally inserted with a boss yarn appears short and is formed in a pile shape.

  According to the sock of the present invention, it is possible to provide a sock that has a single structure instead of the conventional double structure and extremely high heat retention.

1 is a schematic side view (front side: outside) of a sock according to an embodiment of the present invention. It is a schematic side view (back side: skin side) of the sock which concerns on embodiment of this invention.

Hereinafter, socks according to embodiments of the present invention will be described in detail with reference to the drawings. Here, there are various socks structures and manufacturing methods, and the present invention is not limited to specific structures and manufacturing methods. In other words, any socks can be used as long as they have the characteristics described below (the back side knitted fabric is additionally inserted with a cut boss and is cut and knitted to form a polypropylene-containing yarn that appears short and forms a pile). Good. For example, the knitting structure of the knitted fabric constituting the socks and the type of the knitting machine for knitting the socks may be any type. Therefore, the general structure of the socks shown below is merely an example.

Note that the present invention is particularly preferred as indoor socks (socks) called room socks or room shoes. Moreover, since the socks shown below are common to the left and right, it is preferable in that the right and left are not mistakenly worn.
FIG. 1 is a schematic side view (front side: outside) of a sock 100 according to the present embodiment, and FIG. 2 is a schematic side view (back side: skin side) of the sock 100. 1 and 2 are views showing a state in which the sock 100 is placed on a flat surface.

  The characteristics of the sock 100 will be described with reference to FIGS. 1 and 2. As shown in FIG. 1, the sock 100 is formed of a tubular knitted fabric from a wear mouth portion 110 provided at an opening to a toe portion 150 through a heel portion 130, and extends from the wear mouth portion 110 to the heel portion 130. It has the same external appearance as a normal sock including the annular body part 120 and the annular foot part 140 constituting the toe part 150 from the heel part 130. For example, the body portion 120 and the foot portion 140 are knitted with the same knitting yarn and the same knitted fabric, the heel portion 130 and the toe portion 150 are knitted with the same knitting yarn and the same knitted fabric, and the wear mouth portion 110 is the other. It can be knitted by rubber knitting or the like, which is more stretchable than the above part. However, the socks according to the present invention are not limited to such knitting yarns and knitted fabrics for reasons such as design.

  As described above, the sock 100 extends from the mouth portion 110 to the toe portion 150 (via the foot portion 140) through the heel portion 130 (via the body portion 120) (in the multiple including double). (Not) a sock having high heat retention constructed of a single tubular knitted fabric, and a back side knitted fabric in contact with the skin in the tubular knitted fabric (but not limited to the body portion 120 and the foot portion 140) The back side knitted fabric is characterized in that a yarn containing polypropylene knitted by additionally inserting a boss yarn is shortly formed and formed on a pile-shaped pile lining 160.

Further, the fiber characteristics, particularly thermal characteristics, of the knitting yarn for knitting the pile lining 160 will be described in detail below. Hereinafter, the thermal conductivity is a physical quantity obtained by dividing a heat flux density (thermal energy passing through a unit area per unit time) by a temperature gradient in heat conduction, and is the same physical quantity as the thermal conductivity.
In the sock 100, the fibers knitting the pile lining 160 described above are fibers mainly composed of polypropylene (at least polypropylene is 50% by weight or more). Polypropylene has a thermal conductivity λ of 0.12, and acrylic (thermal conductivity λ = 0.21), nylon (thermal conductivity λ = 0.24), polyester ( The thermal conductivity is lower than that (fibers having high thermal conductivity) such as thermal conductivity λ = 0.15).

  The fibers for knitting the pile lining 160 are fibers mainly composed of polypropylene (hereinafter sometimes referred to as polypropylene knitting yarn), and are additionally inserted by a knitting method called a cut boss and cut and knitted on a knitting machine. ing. In this case, the yarn end of the additionally inserted polypropylene knitting yarn is cut short (for example, 5 mm or less), and is projected to the back side of the fabric so that it does not appear on the front side of the fabric. ing. Furthermore, although not limited, in this knitting method called a cut boss, it is preferable to repeat insertion of two stitches and cutting two stitches.

  In this way, the knitted pile lining 160 feels soft and does not release heat due to the characteristics of the polypropylene knitting yarn (thermal characteristics of low thermal conductivity) and the cut boss knitting method. Can be realized. For example, by wearing this sock 100 at bedtime, even in the winter season when the feet (toes) are cold and cannot sleep, it is extremely warm so that it is possible to sleep comfortably.

As described above, the sock 100 according to the present embodiment has a single cylindrical shape from the mouth part 110 to the toe part 150 (via the foot part 140) through the heel part 130 (via the body part 120). A back side knitted fabric that is formed of a knitted fabric and abuts against the skin of the tubular knitted fabric (but is not limited to the back side knitted fabric particularly in the body portion 120 and the foot portion 140) is additionally inserted with a cut boss and cut. Yarns containing knitted polypropylene appear short and are formed on a pile-like pile backing 160. As a result, it is possible to realize a sock having a very high heat retention with a single structure rather than a multiple structure including a double structure.

  The embodiment disclosed this time should be considered as illustrative in all points and not restrictive. The scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.

  The present invention is suitable for socks composed of a knitted fabric (single structure, not a multiple structure), and is particularly preferable in that the heat retaining property can be extremely enhanced.

DESCRIPTION OF SYMBOLS 100 Socks 110 Wear mouth part 120 Body part 130 Butt part 140 Foot part 150 Toe part 160 Pile lining

Claims (1)

A sock with high heat retention composed of a tubular knitted fabric from the wearer to the toe through the buttocks,
A sock characterized in that the back side knitted fabric that comes into contact with the skin of the tubular knitted fabric is formed into a pile shape in which a yarn including polypropylene knitted by being additionally inserted with a boss yarn appears short.

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