JPH0657897B2 - Shape recovery special yarn - Google Patents

Description

DETAILED DESCRIPTION OF THE INVENTION [Object of the Invention] (Field of Industrial Application) The present invention relates to a shape-recoverable special yarn capable of restoring its shape to its original state by heat treatment.

(Prior Art) Conventionally, a foil thread is known as a thread in which a precious metal such as gold or silver is exposed on the surface of the thread. This foil thread is made of Japanese paper or film or tree foil with a foil of gold, silver or platinum.

This foil yarn is used as a part of a woven fabric or a knitted fabric by simply allowing the surface of the yarn to retain luster such as gold, silver or platinum.

However, these foil yarns have the drawback of poor recovery and elasticity. Therefore, even in the knitted fabrics using these foil yarns, the recoverability and elasticity are poor, and especially in the knitted fabrics, the band and the like are poor in recoverability and elasticity. It is extremely difficult to restore the deformation of the original state. As a result, there is a drawback that the band and the like remain deformed as they are used and are not easily restored to their original state.

As a means for improving the above-mentioned drawbacks, a thin foil of Ni-Ti shape memory alloy or poly-norbornene-based shape memory resin is subjected to foiling with gold, silver or the like and cut into a special foil thread, which is being developed. is there.

(Problems to be Solved by the Invention) By the way, a special foil yarn obtained by foil-cutting a thin plate of Ni-i shape memory alloy or poly-norbornene-based shape memory resin with gold or silver is Although it is rich in recoverability and elasticity, there is a problem in that a special thread is rich in a high-grade feeling and cannot be obtained because of its low precious metal content.

An object of the present invention is to provide a shape-recoverable special yarn which is excellent in shape recovery property and elasticity, rich in high-class feeling, and improved in value.

[Structure of the Invention] (Means for Solving the Problems) In order to achieve the above object, the present invention forms a shape recovery special yarn by cutting a thin shape memory alloy based on a noble metal.

Further, according to the present invention, a thin shape memory alloy based on a noble metal is laminated on at least one surface of the noble metal to form a thin plate, and the thin plate is cut to form a shape recovery special yarn.

(Operation) By adopting the shape-recoverable special thread of the present invention, the shape-recoverable special thread has a high content of noble metal, is rich in recoverability and elasticity, and is rich in luxury and value. Will be things. For example, by using this shape-recoverable special yarn as part of the woven fabric to make a strip, even if wrinkles or folds occur in the strip, it can be easily removed by heat treatment and the strip has a high-class value. It will be excellent.

(Embodiment) An embodiment of the present invention will be described in detail below with reference to the drawings.

Referring to FIG. 2, an appropriate size, for example, a thickness of 10 to 50
A shape-memory alloy 1 based on a noble metal that stores a straight line of about μm is formed into a thin plate shape. The noble metal composing this shape memory alloy 1 is Au-Cd, Au based on Au.
-Cu-Zn, Ag-Cd, Ag based on Ag
Fe based on -Al, Ag-Zn or Pt-
It is made of Pt, and the shape of the alloy made of this noble metal is memorized at a certain temperature. Therefore,
The shape memory alloy 1 has a high content of a noble metal, and when compared with the shape memory alloy made of Ni-Ti which has been conventionally used, it has a high-grade feeling and a high value.

Further, the elastic modulus of the conventional shape memory alloy made of Ni-Ti differs depending on the processing temperature and the alloy composition and cannot be specified by a constant number, but the breaking elongation is about 60%, while the noble metal of this example is The shape memory alloy 1 used as the base has a breaking elongation of about 10 to 20%. Thus, from the thin plate-like yarn shown in FIG. 2, the thin flat-shaped special yarn 3 as shown in FIG.
By this, when weaving with other yarns such as nylon and polyester, there is no yarn breakage and the workability is excellent. Therefore, the shape-recoverable special yarn 3 can be restored to its original shape by heat treatment at a certain temperature, and it is possible to obtain a high-value special yarn that is rich in luxury and excellent in workability.

By applying a pattern or the like to the surface of the shape memory alloy 1 with a press or the like and finely cutting it into a shape-recoverable special yarn 3, the shape-recoverable special yarn 3 is used as, for example, a weft yarn of a woven fabric to weave, The painted pattern appears on the surface of the fabric, and a luxurious fabric is obtained.

Another embodiment of this embodiment will be described. Referring to FIG. 4 and FIG.
A noble metal 5 having a thickness of, for example, about 10 to 100 μm is integrally bonded to at least one surface, for example, an upper surface of a thin shape memory alloy 1 based on a noble metal that stores a straight line of about 0 μm. For example, a noble metal 5 is adhered and laminated on the upper surface of the shape memory alloy 1 with an appropriate generally known adhesive 7 to obtain a thin plate-shaped thin plate 9. Instead of the adhesive 5, glue or lacquer may be integrally formed.

This shape memory alloy 1 is Au-C based on Au.
d, Au-Cu-Zn and Ag-C based on Ag
As the noble metal 5 to be bonded to at least one surface of the shape memory alloy 1 made of a noble metal of Fe, Pt or Fe-Pt based on d, Ag-Al, Ag-Zn or Pt, Au, Ag,
Pt or the like is used.

That is, the shape memory alloy 1 has Au-Cd, Au-Cu-
When Zn is used, Au is used for the noble metal 5, when Ag-Cd, Ag-Al, Ag-Zn is used for the shape memory alloy 1, Ag is used for the noble metal 5, and Fe for the shape memory alloy 1 is used. When -Pt is used, it is preferable to bond Pt to the noble metal 5 as a material of the same metal.

Alternatively, the materials of the noble metal 5 used for the shape memory alloy 1 and the noble metal 5 bonded to the shape memory alloy 1 are not the same kind, and even if they are different kinds, they are excellent depending on the combination of the materials.

This thin plate 9 has a breaking elongation of 10 to 10 as in the above-mentioned examples.
At about 20%, for example, when weaving, there is no yarn breakage and the workability is excellent. In addition, the content of the noble metal in the thin plate 9 is further increased, and the sheet 9 has a high-grade feeling and a high value.

As shown in FIG. 3, the plate-like thin plate 9 thus obtained is cut by a cutter machine to a shape recovering special yarn 11 as shown in FIG. 3, for example.

By using the obtained shape-recoverable special yarn 11 as a weft yarn of a woven fabric and using the silk yarn 13 and the like as a warp yarn as shown in FIG. 6, a woven fabric 15 such as a strip is obtained. As the woven fabric 15 using the shape-recoverable special yarn 11, in addition to the above, the shape-recoverable special yarn 11 is a warp yarn, the silk yarn 13 or the like is a weft yarn, or the shape-recoverable special yarn 11 is a warp yarn. It may be used for both weft threads. Further, the shape-recoverable special yarn 9 may be partially and effectively used instead of the warp yarn, the weft yarn, the warp yarn, and the weft yarn.

By subjecting the shape-recoverable special yarn 11 thus obtained to a heat treatment at a constant temperature, for example, around 100 ° C., the stretched length and elasticity can be restored to the original state. Therefore, when the shape-recoverable special yarn 11 is used to form a woven fabric and the woven fabric is used for a band, deformation (distortion) such as wrinkles or folds that occurs during use is 100 at the deformed portion. By applying a heat treatment at around ℃, it is eliminated and the state before deformation is easily and easily recovered and returned.

Further, the shape-recovering special yarn 11 is a yarn containing a large amount of a noble metal such as a gold yarn, a silver yarn, or a platinum-based yarn, has a shape recovering property, and is excellent in processability.
It becomes a high-class yarn and a rare value. Therefore, it can be published as a shape-recovery yarn containing almost 100% of gold, silver, and platinum, and can be used as a highly valuable yarn that has never existed before.

Also, by applying a pattern or pattern to the surface of the noble metal 5 in the state of the thin plate 9 and cutting it to obtain the shape recovery yarn 11, and further by weaving in this state, the pattern or pattern can be reproduced, which is rich and luxurious. You can get a good look.

The present invention is not limited to the above-described embodiments, but can be implemented in other modes by making appropriate changes.

[Effects of the Invention] As will be understood from the above description of the embodiments, according to the present invention, a thin state memory alloy based on a noble metal is cut, or a thin shape memory alloy based on a noble metal is formed. Since at least one surface is laminated with a precious metal to form a thin plate, and the thin plate is cut into a shape-recoverable special thread, the shape returns to its original state even if the shape changes by heat treatment at a constant temperature. Can be recovered and restored.

Further, since this shape-recoverable special yarn is made of a noble metal, it becomes an excellent yarn that is rich in high-class feeling and rare and has a high value.

For example, weaving with this shape-recoverable special yarn to make a belt,
Even if deformation such as wrinkles or folds occurs, heat treatment at a constant temperature can easily and easily remove the deformation such as wrinkles or folds, and a special shape-recoverable special thread made of precious metal appears on the surface of the strip. As a result, it is rich in luxury, luxurious and gorgeous, and is appreciated as a product with high commercial value.

[Brief description of drawings]

FIG. 1 is a perspective view showing an embodiment of the shape-recoverable special yarn of the present invention, FIG. 2 is a perspective view of a shape memory alloy based on a precious metal, and FIG. 3 is a shape-recoverable special yarn of the present invention. FIG. 4 is a perspective view showing another embodiment, FIG. 4 is a perspective view of a thin plate, FIG. 5 is a partial sectional view of FIG. 4, and FIG. 6 is an example of weaving using the shape-recoverable special yarn according to FIG. FIG. 3 is a plan view of the woven fabric of FIG. 1 ... Shape memory alloy, 3 ... Shape recovery special thread 5 ... Noble metal, 7 ... Adhesive 9 ... Thin plate, 11 ... Shape recovery special thread

Claims (2)

[Claims] 1. A special shape-recoverable yarn prepared by cutting a thin shape-memory alloy based on a noble metal. 2. A thin plate obtained by bonding a noble metal to at least one surface of a thin shape memory alloy based on the noble metal,
A shape-recoverable special yarn that is obtained by cutting the thin plate.