JPH05179502A - Brassiere - Google Patents

Abstract

PURPOSE:To provide a brassiere excellent in feeling when worn while maintaining its body-trimming function. CONSTITUTION:The objective brassiere 1 can be obtained by fitting (A) the lower part of the outer peripheral edge of each cup portion thereof with (B) a NiTi alloy wire 2 of circular form which has been put to arc-shape memory treatment, giving such superelasticity as to be >=1% in recoverable strain.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an improvement of a brassiere equipped with a metal wire.

[0002]

2. Description of the Related Art Conventionally, a brassiere for a woman having a stainless wire attached to a part thereof has been manufactured and sold.

[0003]

However, since stainless steel wire is quite hard and its elongation is relatively small,
It did not fit the body's lines well and was inadequate to wear. In addition, since a hard stainless wire is attached, special care is required when washing and storing the wire, which gives a complicated feeling when handling the wire.

[0004] Therefore, an object of the present invention is to provide a brassiere which is excellent in wearing comfort while maintaining a manipulative function.

[0005]

The brassiere of the present invention is a NiTi exhibiting superelasticity with a recoverable strain of 1% or more.
It is characterized in that the alloy wire is shape-memory processed into an arcuate shape and is attached to a lower portion of the outer peripheral edge of the cup portion.

NiT constituting the above NiTi alloy wire
i alloy is 50-60 wt% Ni and 40-50 wt%
NiTi alloy consisting of Ti and Ni of NiTi or part of Ti is Cu, Al, Zr, V, Co
It is known to be a NiTi alloy substituted with one or more elements selected from the group consisting of and Fe.

[0007]

The NiTi alloy used in the present invention is
It is a superelastic alloy that exhibits a low Young's modulus and has an extremely large elastic deformation region. By utilizing the superelasticity of this NiTi alloy, it is possible to give high flexibility and obtain an excellent wearing feeling.

FIG. 1 shows an example of elastic characteristics of the NiTi alloy wire used in the present invention. The characteristics shown in Fig. 1 are
55.5 wt% Ni-with a diameter of 1.2 mm and a length of 10 cm
A test piece composed of a 44.5 wt% Ti alloy wire was measured by a tensile tester at a temperature of 37 ° C. As is clear from FIG. 1, the NiTi alloy wire has a recovery elongation, that is, a range of effective elongation as a spring of several%, and therefore has a recovery elongation one digit larger than that of the stainless wire. That is, as shown in FIG. 1, it can be said that this test piece has a recoverable strain of 5% or more. Based on this, in the present invention, the recoverable strain of the NiTi alloy wire used is 1% or more.

[0009]

As described above, the NiTi alloy wire used in the present invention exhibits superelasticity within a relatively wide range in which the recoverable strain is 1% or more, so that it has a manipulative effect and is supple. It is possible to obtain a brassiere that is comfortable to wear. Moreover, in the present invention, the above N
Since the iTi alloy wire is shape-memory processed into an arcuate shape and is attached to the lower portion of the outer peripheral edge of the cup portion, the NiTi alloy wire fits properly to the shape of the breast during attachment.

If the NiTi alloy wire has the shape of a round wire, the superelasticity appears evenly when the NiTi alloy wire is bent in any direction. Therefore, the brassiere equipped with such a NiTi alloy wire can accurately follow the movement of the body in various directions.

In addition, especially when washing with water having a temperature lower than the body temperature such as washing with water, since the NiTi alloy wire has greater flexibility at a low temperature, it is possible to easily wash without special care. You can Similarly, when it is folded when it is stored, it can be easily folded because it is more flexible than the conventionally used stainless wire-attached brassiere.

Further, it has been confirmed by experiments that the NiTi alloy wire used in the present invention is superior to the conventional stainless wire also in biocompatibility such as corrosion resistance and cytotoxicity. Therefore, stains on the brassiere caused by the generation of rust or "rash" on bare skin
There is no problem.

[0013]

EXAMPLES Examples will be described below. Example 1 A NiTi alloy wire having a diameter of 1.2 mm composed of 54% by weight of Ni and 46% by weight of Ti was processed into an arcuate shape convenient for body shaping, and heated in that state at 500 ° C. for 10 minutes. (Shape memory processing). Next, after cooling at room temperature or in ice water, the brassiere 1 was attached to the lower portion of the outer peripheral edge of the cup portion as shown in a perspective view in FIG. In Figure 2,
For ease of understanding, the NiTi alloy wire 2 is shown by a broken line, and although it is not clear from the drawing, this NiTi alloy wire 2 is shown.
The alloy wire 2 is attached so that the periphery thereof is covered in a bag shape.

The brassiere 1 of FIG. 2 made in this way
When it was tried on to the model, it not only exhibited the same manipulative effect as a brassiere using a conventional stainless wire, but it was also supple and comfortable to wear. Example 2 The NiTi alloy wire used in the characteristic evaluation test of FIG. 1 was processed into an arcuate shape convenient for manipulating as in Example 1, and heated in that state at 500 ° C. for 10 minutes, and then at room temperature. Alternatively, it was cooled in ice water. As is clear from FIG. 1, this NiTi alloy wire exhibits superelasticity at 37 ° C. and has soft characteristics at a temperature of 4 ° C. NiTi obtained
The alloy wire was attached to the brassiere as in Example 1.

When the brassiere thus produced was tried on a model, it not only exhibited the same manipulative effect as a conventional manipulative brassiere using stainless steel wires, but also was supple. And I was able to give a comfortable wearing feeling. Moreover, it was not rusted by washing and sweat, and no color transfer due to the NiTi alloy wire was observed on the brassiere.

[Brief description of drawings]

FIG. 1 is a diagram showing an example of elastic characteristics of a NiTi alloy wire used in the present invention.

FIG. 2 is a schematic perspective view showing a brassiere 1 according to an embodiment of the present invention.

[Explanation of symbols]

 1 brassiere 2 NiTi alloy wire

Claims (1)

[Claims] 1. A brassiere in which a NiTi alloy wire having a superelasticity with a recoverable strain of 1% or more is shape-memory processed into an arc shape and attached to a lower portion of an outer peripheral edge of a cup portion.