JPS6342933A - Production of decorative compression white noble metal yarn - Google Patents

Abstract

(57) [Abstract] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Application Field) The present invention relates to a method for producing a decorative white precious metal using fine silver or platinum wire of high purity for use in woven or knitted fabrics. More specifically, high-purity silver or platinum thin wires are concentrically twisted.
It is passed through a wire drawing die with a diameter smaller than its outer diameter and compressed into a circular shape, with recesses formed between the wires of the outer layer, and the recesses are filled with a colored synthetic resin or paint to create a white-silver colored striped appearance. The present invention relates to a method for manufacturing a white noble metal for decoration, which is characterized by forming the metal in a spiral shape.

(Prior art) Conventional methods for making gold and silver thread include gampi gi pasted with gold and silver foil, cut into thin strips and wrapped around a core thread, and glue mixed with gold and silver powder in single-stranded thread that has been pre-twisted. After pasting the liquid and drying it and giving it a strong ply twist, gold and silver are vacuum-deposited on the base sheet, a protective layer is provided on top with a synthetic resin paint, and then the core is cut into thin strips. It is known to be wrapped around a thread.

(Problems to be Solved by the Invention) As mentioned above, gold and silver threads made by pasting gold and silver foil on paper or vacuum-depositing gold and silver on a base sheet and cutting them into thin strips have a different appearance. However, in the former case, it is expensive to produce gold and silver foil of uniform thickness, and a special technique is required to apply the gold and silver foil. In the latter case, losses due to scattering of gold and silver during vacuum evaporation are large;
Yield deteriorates.

Therefore, the above-mentioned gold and silver threads are considerably more expensive than decorative gold and silver threads obtained by vacuum-depositing aluminum on a base sheet, but they do not cause contamination of woven or knitted fabrics or damage due to use. In some cases, recovery of precious metals in the form of gold and silver becomes virtually difficult, so even luxurious woven and knitted fabrics have the disadvantage of having no asset value.

However, these gold and silver threads, which are wound around core threads in various colors with gaps, exhibit a geometric spiral color striped pattern and have a beautiful and decorative appearance. There is.

One issue is whether such colored striped patterns can be formed using thin wires of high-purity silver or platinum.

The present inventors woven a 1M knitted fabric using pure silver or pure platinum soft thin wires with a diameter of 0.05 to 0.3 mmφ, but the breaking load, bendability, and flexibility of each thin wire alone were determined by the weaving process. Because the wires do not meet these conditions, they easily break or bend, or the workability during weaving is significantly hindered, and the appearance of the resulting woven or knitted fabric is flat and lacks a three-dimensional effect, giving it an elegant silvery-white appearance. Although it exhibits color, it does not exhibit color stripes due to geometric shading.

For example, if a colored striped pattern with intermittent ring marks can be applied to the surface of a thin silver or platinum wire using paint or the like, the appearance will become more decorative. However, since the silver or platinum fine wire used in the present invention has an extremely small diameter, it is extremely difficult to paint and color it by the ring mark method. Even if it were made, the part with the ring mark may become knotted and bend during weaving or knitting, or the colored part of the ring mark may be damaged by friction or damage during subsequent use.
Due to abrasion, bending, trauma, etc., the painted and colored ring marks will peel off and fall off, causing them to lose their decorative value.

Therefore, as shown in Fig. 3, regarding a white precious metal system (1) consisting of seven thin silver or platinum wires, with one thin wire of silver or platinum set as the center line (2) and homogeneous thin wires of the same wire diameter concentrically twisted on top of the center line (2), As a result of trying to fill the valleys (8) between the outer layer wires with a colored synthetic resin or paint (6) using a die having the outer diameter of the yarn to form a colored striped pattern with silver or platinum, the fourth Colorable synthetic resin or paint (6) on the entire outer periphery of white precious metal as shown in the figure.
Since the outer layer of silver or platinum fine wires are not exposed on the surface, the white noble metal type (1) has no decorative value.

The present invention is aimed at solving this problem, and consists of compressing a white noble metal system in which fine silver or platinum wires of high purity are concentrically twisted into a circular shape, providing recesses between the wires of the outer layer, and forming recesses between the wires of the outer layer. A method for producing a compressed white precious metal for decorative use, in which the material is filled with a colored synthetic resin or paint, and the appearance is a bright and dark color striped pattern of a shiny spiral-shaped sushi of silver color and the filling resin in the recesses. This is what we provide.

Another object of the present invention is that after the decorative compressed white precious metal system according to the present invention is woven into a woven or knitted fabric, the woven or knitted fabric is not contaminated.
The present invention also provides the ability to recover high-purity silver or platinum thin wires used in woven and knitted fabrics as precious metals in the event of damage, thereby increasing the liability value of wA knitted fabrics.

(Means for Solving the Problems) Means for solving the objects of the present invention have a diameter of 0.05 mm.
The center line is one or two to five of high-purity silver or platinum thin wires of ~0.211IIlφ, and a homogeneous thin wire of the same wire diameter is placed concentrically on the center line.
The twist pitch is defined as the diameter of the circle passing through the center of the outermost layer (hereinafter referred to as
The layer core diameter is 50 times or less, and the total number of strands in the strand structure is 7 to 61 to form a white noble metal system.

After compressing the various twisted white precious metal systems thus constructed into a circular shape through a wire drawing die with a diameter smaller than the finished outer diameter of the wire yarn at a compression rate of 3% or more, the compressed white precious metal systems are Temperature softened for a short time in the temperature range of ℃,
Filling the gap between the recesses formed between the outer layer wires of the compressed white noble metal with a colored thermoplastic resin or thermosetting resin,
It is characterized by forming a spiral colored striped pattern of white silver and colored synthetic resin on the appearance of a compressed white precious metal.

Next, the reason why the composition of the twisted white precious metal system before compression is set to the minimum, that is, the center wire diameter is 0.05 mmφ and the number of twists is 7, is that if the composition is less than this, the mechanical property breaking load will be low, and the woven or knitted material will This is because there is a risk of wire breakage occurring during the weaving process.

Also, to the maximum of the configuration, that is, the center line diameter is 0.2 m11 + φ
The reason why the number of twists is 61 is that if the structure exceeds this configuration, the finished outer diameter of the white precious metal will become large, which may impede the workability during weaving of the woven or knitted material.

The preferred configuration range for the twisted white precious metal system is a center wire diameter of 0.
．． The diameter is 07 to 0.15 mm, and the number of twists is 7 to 37.

The twisting pitch of the twisted white precious metal is preferably 50 times or less the diameter of the layer core. This is because if the value exceeds that value, the twist will easily unravel due to the bending stress received during weaving of the Ia knitted material. The preferred twisting pitch is in the range of 10 to 25 times the layer core diameter, and the preferred compression ratio is in the range of 4 to 15%. When the compression rate of the twisted white precious metal type is less than 3%, the arcuate portion of the outer layer that is compressed by the wire drawing die and polished becomes smaller, and the band-like streaks of the colored synthetic resin filled in the recesses between the outer layer wires become larger. This is because the decorative value of the appearance will be lost. If the compression rate is increased, the twisted white precious metal system will take on a solid shape, which is not preferable.

Furthermore, the silver or platinum thin wire used in the present invention has a high purity (contains a small amount of other additive elements, and the purity of silver or platinum is 90%).
% or more), and pure silver or pure platinum is preferred. This is because if the compressed white precious metal woven into the woven or knitted fabric is recovered as a precious metal if the purity is lower than that, the recovery price will be low and the asset effect will be lost.

The Vicat softening temperature (JISK'7206) of the thermoplastic resin or thermosetting resin used is preferably 60° C. or higher. The reason for this is to take into account the environmental temperature to which the decorative compressed white precious metal system is subjected during use or storage.

(Function) This will be explained for the compressed white noble metal system having seven components shown in FIGS. 1 and 2. When concentrically twisted white precious metal (1) is compressed into a circular shape using a wire drawing die,
The center line (2) is not deformed, but the outer layer silver or platinum wire m (3) is thick (deformed) and there is a recess (5 ) to form.

When the gap between the recesses is filled with colored thermoplastic resin or thermosetting resin (6), the arcuate portion (4) and the colored synthetic resin filled in the recesses are compressed in the length direction of the white precious metal-based material (7). On the other hand, in the former, the sushi is a bright white silver band, and in the latter, the colored synthetic resin is used as band-shaped sushi that alternates with spiral colored stripes, and the appearance is an elegant decorative compressed white. It is made of precious metals.

An example of a colored compressed white noble metal system having a seven-strand structure has been described above, but the appearance of each compressed white noble metal system having a multilayer twist structure also exhibits a colored striped pattern of silvery white and colored resin as described above.

(Example) Example 1 A thin pure silver wire with a diameter of 0.1±8/1000 mmφ was set as the center line, and six thin silver wires of the same quality and the same wire diameter were placed concentrically on the center line.
The twisting pitch is set to 30 times the layer core diameter, and the silver thread is twisted in a right-handed manner. The silver thread is passed through a wire drawing die with a compression rate of 7% and compressed into a circular shape, and then degreased with a trichloride solvent and tempered to a soft state using a continuous softening device adjusted to a temperature of 500±10°C to form a compressed silver thread. did. The compressed silver thread was immersed in a resin paint consisting of 20 parts of epoxy-isocyanate resin (1:1), 0.1 part of carbon blank, 35 parts of ethyl acetate, 35 parts of methyl ethyl ketone, and 15 parts of cyclohexanone, and a resin paint corresponding to the finished outer diameter was immersed. It was passed through a die and pulled up and dried by heating, and the recesses between the outer layer lines of the compressed silver thread were filled with black resin. The appearance of the resulting compressed white precious metal is as follows:
The bright silver bands of sushi and the black bands of sushi filled in the recesses alternated in a spiral shape, creating a beautiful geometric striped pattern.

Example 2 A pure platinum thin wire with a diameter of 0.1±8/1000 mmφ is set as the center line, and on top of it, 6 platinum thin wires of the same quality and diameter are twisted left-handed concentrically, and further 12 platinum thin wires of the same quality and the same diameter are twisted on the center line. are twisted concentrically in a right-handed manner with the twisting pitch of the outermost layer being 20 times the core diameter of the layer to obtain a platinum thread.

After passing the gold thread through a wire drawing die with a diameter of 6% and compressing it into a circular shape, it was degreased with trichlene solvent and heated to a temperature of 5%.
The compressed platinum thread was softened by a continuous softening device adjusted to 00±10°C.

The compressed platinum thread was immersed in the same epoxy-isocyanate resin paint as in Example 1, pulled up through a die corresponding to the finished outer diameter, and heated and dried to coat the black resin in the recesses between the outer layer lines of the compressed platinum thread. Filled.

The appearance of the obtained compressed white precious metal was similar to that of Example 1.
Shiny silver bands of sushi and black bands of sushi alternated in a spiral shape, creating a beautiful geometric striped pattern.

Example 3 Using a fine pure silver wire with a diameter of 0.15±8/1000 mm,
A concentrically twisted soft compressed silver thread was made in the same manner as in Example 1,
The compressed silver thread was coated with epoxy-phenol resin (1:1) 50
150 parts of Cellosolve, 50 parts of Kijiroll, and a small amount of blue pigment.It is immersed in a resin paint consisting of 150 parts of Cellosolve, 50 parts of Kijiroll, and a small amount of blue pigment, pulled up through a die corresponding to the finished outer diameter, heated and dried, and a blue color is applied to the recesses between the outer layer lines of the compressed platinum thread Filled with resin.

The appearance of the resulting compressed white precious metal was a beautiful geometric striped pattern of bright white silver strips and blue strips filled in the recesses that alternated in a spiral shape. .

Example 4 Using pure platinum fine wire with a diameter of 0.15±8/1000 mmφ, concentrically twisted soft compressed platinum thread was made in the same manner as in Example 2, and the compressed platinum thread was coated with vinyl chloride-vinyl acetate copolymer resin 10 parts, plasticizer 3 parts, penzole 50 parts, acetone 2 parts
The compressed platinum thread is immersed in a resin paint consisting of 25 parts of ethyl acetate, 25 parts of ethyl acetate, and some part of a red colorant, pulled up through a die corresponding to the finished outer diameter, and heated and dried. filled with.

The appearance of the obtained compressed white noble metal-based product was similar to each of the Examples, with white silver and red bands forming an alternating spiral pattern, and a beautiful colored striped pattern.

In addition to the above examples, a composite precious metal system in which pure silver or pure platinum thin wires and pure gold thin wires of the same wire diameter are twisted alternately is compressed into a circular shape in the same manner as in the above examples, and then the temperature is adjusted to 500 ± 10 ° C. A compressed composite noble metal system for decoration can be obtained by softening the material using a continuous softening device, and filling the recesses between the outer layer lines of the liquid system with a colored resin.

(Effects of the Invention) The appearance of the decorative compressed white noble metal-based material obtained by the method of the present invention is that it has a silver band shape with specular luster in its length direction and the coloring that fills the concave portions of the outer layer of the compressed platinum thread. The sushi strips made of synthetic resin alternate in a spiral shape,
It has an elegant color stripe pattern, which gives it a more decorative effect.

Furthermore, after the decorative compressed white precious metal system obtained by the method of the present invention is woven into a woven or knitted fabric, the woven or knitted fabric may be contaminated or
In the event of damage, the compressed white precious metal system can be recovered as a precious metal, which can enhance the asset value of wR knitted fabrics, thereby making a large contribution to demand.

[Brief explanation of drawings]

Fig. 1 is an example of an enlarged cross-sectional view of a compressed white precious metal system for decoration manufactured by the method of the present invention, Fig. 2 is an enlarged cross-sectional view of a compressed white precious metal system with seven pieces, and Fig. 3 Figure 4 is an enlarged cross-sectional view of a white noble metal material in which one thin silver or platinum wire is used as the center line, and six thin wires of the same quality and diameter are twisted concentrically on top of it. FIG. 2 is an enlarged cross-sectional view of a noble metal-based material coated with a colored synthetic resin. Main symbols in the drawing 1: Concentrically twisted white precious metal system, 2: Center line of thin silver or platinum wires, 3: Fine silver or platinum wires in outer layer, 4: Shiny arc portion, 5: Between outer layer wires Concave portion, 6: Colored synthetic resin paint, 7: Compressed white precious metal system, 8 Valley between two outer NvA. Agent Patent Attorney Takashi Mizuguchi - Figure 1 L. l31i￥II4-Iffi

Claims (1)

[Claims] One or two to five high-purity silver or platinum thin wires with a diameter of 0.05 to 0.2 mmφ are twisted together as the center line, and homogeneous thin wires with the same wire diameter are placed concentrically on top of that. The total number of strands in the twisted configuration is 7 to 61,
After the thus constructed twisted white precious metal is passed through a wire drawing die and compressed into a circular shape, the compressed yarn is heat-treated to make it soft, and the compressed white precious metal is inserted into the gap between the recesses formed between the outer layer wires. 1. A method for producing a compressed white precious metal for decoration, which comprises filling a colored thermoplastic resin or thermosetting resin.