JPS6277137A - Manufacture of ornamental compressed gold thread - Google Patents

Abstract

PURPOSE:To improve the ornamental effect by bringing plural pieces of twisted threads which have been twisted concentrically onto a center wire formed by twisting one piece or two - five pieces, to wire drawing in a circular shape, and thereafter, heating and softening them. CONSTITUTION:A center wire is formed by twisting one piece or five pieces of high purity gold thin wires whose diameter is 0.05-0.2mm, and on this wire, a gold thin wire of the same wire diameter is twisted concentrically by setting its twisting pitch to <=50 times of a diameter of a circle passing through the center of the wire of the outermost layer, and a gold thread is formed by twisting 7-61 pieces of the total number of pieces of the twisting constitution. The twisted gold thread which has been constituted in this way is brought to wire drawing of <=3% compression, and compressed in a circular shape, and thereafter, heated at 500+ or -10 deg.C for a short time, and a soft compressed gold thread is obtained. In this way, the ornamental effect can be improved.

Description

DETAILED DESCRIPTION OF THE INVENTION (Industrial Field of Application) The present invention relates to a method for producing decorative compressed gold thread using fine gold wire of high purity for use in a weaving proboscis.

More specifically, it is made by concentrically twisting fine gold wires of high purity.
This method relates to a method for producing decorative compressed gold thread, which is passed through a wire drawing die having a diameter smaller than its outer diameter, compressed into a circular shape, and provided with recesses between the wires in the outer layer to give its appearance a brilliant light and shade.

Conventional technology Conventional methods for making gold and silver thread include pasting gold and silver leaf on Mashibigi, cutting it into thin strips and wrapping it around a core thread, or using glue mixed with gold powder on single-twisted 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. A method of winding it around a thread is known.

In particular, with vacuum-deposited silver thread, the protective layer is made yellow to make it a decorative gold thread, a thin indium plating is applied to prevent the silver from discoloring in the atmosphere, and a high-grade linear alkylimidazole is used to coat the silver surface. It has been used to improve the corrosion resistance of silver by chelating it.

(Problems to be Solved by the Invention) As mentioned above, gold and silver threads made by pasting gold and silver foil on Ganpi-gi or vacuum-depositing gold and silver on a base sheet and cutting them into thin strips have a different appearance. Even if the gold and silver foil is decoratively slanted, in the former case, it is expensive to produce gold and silver foil of uniform thickness, and a special and skilled technique is required to apply the gold and silver foil.

In the latter case, the loss due to scattering of gold and silver due to vacuum stem deposition is large, resulting in poor yield.

Therefore, the gold and silver threads described in 2 are considerably more expensive than the 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. If this occurs, it becomes virtually difficult to recover the precious metals as gold and silver, so even luxurious woven and knitted fabrics have the disadvantage of having no asset value.

However, these gold and silver threads wound with core threads of various colors exhibit a geometric spiral color striped pattern, and have a beautiful and decorative appearance.

One issue is whether such a colored striped pattern can be formed using pure gold wire.

Next, we tried to weave a woven or knitted fabric using soft pure gold wire with a diameter of 0.05 to 0.3 mm, but the breaking load, bendability, and flexibility of the fine gold wire were determined by the weaving processing conditions. Because the wires are not compatible with gold, they easily break, bend, or seriously impede workability during weaving, and the overall appearance of the resulting woven or knitted material is an elegant golden color unique to gold. However, it is simply a golden color and lacks a geometric striped pattern.

For example, if a colored striped pattern made of intermittent ring marks can be applied to the surface of a thin gold wire using paint or the like, the appearance will become more decorative. However, since the fine gold wire used in the present invention has an extremely small diameter, it is difficult to color or color it using the ring mark method.

Even if it is made, the colored part of the ring mark will be damaged by friction, abrasion, and wear during weaving or after use.
When subjected to bending and trauma, it peels off and falls off, losing its decorative value.

For example, as shown in Figure 2, one of the thin gold wires is connected to the center line (2
) and then a fine gold wire of the same wire diameter on top of it concentrically (7
Regarding the gold thread (1) of this configuration, when a colored synthetic resin or paint is filled into the valleys (7) between the outer layer wires using a die having the same outer diameter as the gold thread to form a colored striped pattern with gold, As shown in Figure 3, the entire outer periphery of the gold thread is covered with a colored synthetic resin or paint (8
) is covered and the outer gold wire is not exposed on the surface, so
It has no decorative value.

The purpose of the present invention is to solve this problem by compressing a gold thread made by concentrically twisting fine gold wires of pure gold into a circular shape, creating recesses between the lines in the outer layer, and giving the outer layer a golden-yellow appearance. The present invention provides a method for producing decorative compressed gold thread having a striped pattern of bright and dark colors of spiral-shaped sushi and concave portions.

Another object of the present invention is to remove fine gold wires of pure gold used in mkR products when the decorative compressed gold thread according to the present invention is woven into a woven or knitted fabric and the woven or knitted fabric becomes contaminated or damaged. It also provides the ability to recover precious metals and increase their asset value.

(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 five of the high-purity fine gold wires with a diameter of ~0.2 mm, and the fine gold wires of the same diameter are concentrically arranged on top of the center line, with the maximum twist pitch. 5 of the diameter of the circle passing through the center of the outer layer line (hereinafter referred to as the layer core diameter)
Twist as 0 times or less, and the total number of strands in the twist configuration is 7 to 6.
One twisted gold thread.

The compression ratio of the various twisted gold threads thus constructed is 3%.
As described above, after passing through a wire drawing die with a diameter smaller than the finished outer diameter of the composite gold thread and compressing it into a circular shape, the compressed gold thread is tempered for a short time in a temperature range of 500±10°C to obtain a soft compressed It is characterized by being made of gold thread.

Next, the reason why the configuration of the twisted gold thread before compression is set to the minimum, that is, the center line diameter is 0.05 mmφ and the number of twists is 7, is that if the configuration is less than this, the breaking load as a mechanical property will be low, and the woven or knitted fabric will This is because there is a risk of wire breakage occurring during forming.

In addition, the configuration is set to the maximum, that is, the center line diameter is 0.2 mmφ, and the number of twists is 61 because if the configuration exceeds this configuration, the finished outer diameter of the gold thread will become large, which may impede the workability during the weaving process of woven or knitted materials. This is because there is.

The preferred configuration range of the twisted gold thread is a center line diameter of 0.07.
~O, 15mmφ, number of twists: 7 to 37.

It is preferable that the twisting pinch of the twisted gold thread is 50 times or less the diameter of the layer core.

This is because when the fiber is 4fi or more, the twist tends to unravel due to the bending stress received during weaving of the woven material.

A preferred twisting pinch ranges from 10 to 25 times the layer core diameter.

The preferred compression ratio is in the range of 4-15%.

Next, the compression ratio of the twisted gold thread is less than 3%+'E
In j, the deformation of the outer layer compressed and polished by the wire drawing die is small, and the formation of recesses between the outer layer wires is not sufficient, so the spiral pattern of brightness and dark areas in the length direction of the compressed gold thread is visually visible. This is because you will no longer be able to expect anything.

When the compression ratio is increased, the twisted gold thread becomes solid, which is not preferable.

Furthermore, the chemical composition of the fine gold wire used in the present invention is 18K (
100% x 18/24) or more, preferably 2
It's on 4th.

If it is less than 18, the recovery value of the compressed gold thread becomes low when recovering the compressed gold thread as a precious metal from the woven or knitted fabric, which is not preferable.

(for production) The operation will be explained with reference to FIGS. 1 and 2.

When concentrically twisted gold threads (1) are compressed into a circular shape using a wire drawing die, the center line (2) is not deformed, but the outer layer gold wire vA (3) is greatly deformed and polished by the wire drawing die. A recess (5) is formed between the large circular arc portion (4) and the line of the outer layer.

The arcuate portion (4) and the recessed portion (5) are formed in the longitudinal direction of the compressed gold thread (6), with the former forming a bright golden band-shaped sushi, and the latter forming a recessed portion as a visually dark area. It exhibits an alternating spiral pattern of light and dark geometric stripes, giving it the appearance of an elegant decorative gold thread.

Above, we have explained an example of compressed gold thread with seven threads.
The appearance of each of the compressed gold threads with 19-thread, 37-thread, and 61-thread configurations also exhibits a color striped pattern with light and dark areas of golden yellow and dark areas, as described above.

(Example) Example 1 A thin gold wire is tied at the center line on a 24 wire with a diameter of 0.1±8/1000 mmφ, and 6 thin gold wires of the same quality and diameter are concentrically laid on top of it, with a twist pitch of 30 mm, which is the diameter of the layer core. Twist it right-handed as a double to make gold thread.

The gold thread was passed through a wire drawing die with a diameter of 7% to compress it into a circular shape, and then softened using a continuous softening device adjusted to a temperature of 500±10°C to obtain a decorative compressed gold thread.

The appearance of the obtained compressed gold thread is that the fine wires in the outer layer are compressed and polished by a wire drawing die to form a large circular arc, and concave portions are created between the outer layer wires, and a bright golden band-like shape is formed in the length direction. The sushi and the visual dark areas created by the concavities on the surface alternated in a spiral pattern, creating a beautiful geometric striped pattern of light and dark colors.

Example 2 A gold III wire is set as the center line on a 24 wire with a diameter of 0.1±8/1000 mm, and on top of it, 6 thin gold wires of the same quality and diameter are left-twisted concentrically, and further thin gold wires of the same quality and the same diameter are twisted on the left. Twelve pieces of wood are concentrically twisted to the right with the twisting pitch of the outermost layer being 20 times the layer core diameter to make gold thread.

The gold thread was passed through a wire drawing die with a diameter of 6% to compress it into a circular shape, and then softened using a continuous softening device adjusted to a temperature of 500±10°C to obtain a decorative compressed gold thread.

The appearance of the obtained compressed gold thread is similar to that in Example 1, in which the fine wires in the outer layer are compressed by a wire drawing die and polished to form a large circular arc, and concave portions are formed between the outer layer wires, and the wires are shiny in the length direction. The golden band-shaped sushi and the visual dark areas created by the concave surface formed an alternating spiral pattern, creating a beautiful geometric pattern of light and dark stripes.

(Effects of the Invention) The decorative compressed gold thread produced by the method of the present invention has a golden band-like shape with specular shine in its length direction, and the recesses formed between the outer layer lines are dark areas. The gold wire alternates in a spiral shape, creating a gorgeous and elegant geometric light and dark striped pattern, which is different from a single gold wire.
Creates a more decorative effect.

Furthermore, after the decorative compressed gold thread produced by the method of the present invention is woven into a woven or knitted fabric, if the woven or knitted fabric becomes contaminated or damaged, the high-purity gold thread used can be recovered as a precious metal; Since it can increase the asset value of woven products, it often contributes to demand.

[Brief explanation of drawings]

FIG. 1 is an example of an enlarged cross-sectional view of a decorative compressed gold thread produced by the method of the present invention, and FIG. 2 is a thin gold wire of the same diameter with one of the thin gold wires as the center line. An enlarged cross-sectional view of a gold thread made of six concentrically twisted gold threads. Figure 3 is an example of an enlarged cross-sectional view of a gold thread made of seven concentrically twisted gold threads coated with a colored synthetic resin paint. be. The main symbols in the drawings are as follows. 1: Gold thread twisted concentrically, 2: Center line of fine gold wire,
3: Fine gold wires in the outer layer, 4: Arc parts with mirror luster, 5: Recesses between the lines in the outer layer, 6: Compressed gold thread, 7: Valleys between the lines in the outer layer, 8: Colorable synthetic resin paint.

Claims (1)

[Claims] 1. Use one or two to five strands of high-purity thin gold wires with a diameter of 0.05 to 0.2 mmφ as the center line, and place a thin gold wire of the same diameter on top of that. The method is characterized in that the twisted gold threads are concentrically twisted, the total number of twisted threads being 7 to 61, the twisted gold threads thus formed are passed through a wire drawing die, compressed into a circular shape, and then the compressed gold threads are heated and softened. A method for producing decorative compressed gold thread.