JPS592140Y2 - gold and silver thread - Google Patents

Description

[Detailed explanation of the idea] The present invention relates to gold and silver threads using foil threads.

Generally, flat foil threads and twisted threads are known as gold and silver threads.

The former is formed by cutting a foil sheet to a certain width, and the latter is formed by winding the flat foil thread around a core thread or by entwining the flat foil thread with a thin thread.

All of these utilize the properties of the foil sheet as they are, and have a regular metallic luster and are rigid in appearance and texture.
There are also limits to the methods and uses of weaving and knitting in combination with other fibers.

Therefore, the present invention uses a flat foil thread, but provides a gold and silver thread that has a wide range of uses and is significantly different in texture, appearance, and physical properties from conventional gold and silver threads.

The gold and silver thread of the present invention is made by twisting two or more threads, and short fibrous foil threads are twisted into the threads so as to be sandwiched between the threads. Features.

The above-mentioned yarn may be made of either natural or chemical fiber, and either single yarn or double yarn can be used.

Next, as the short fibrous foil yarn, one obtained from a flat foil yarn is used.

These are generally used only as long fibers, but in the present invention they are used in the form of short fibers.

In the present invention, a foil sheet that is a general gold and silver thread material and an iris sheet, for example, a metal layer provided on a base material such as a film or paper by adhesion of gold and silver foil, vacuum deposition, sputtering, etc., are proposed. Publication No. 118916/1983, Japanese Utility Model Application No. 113935/1982
Any of those described in Japanese Patent Application No. 56-81650 and the like can be used.

The shape and structure of the short fibrous pieces vary depending on the intended use of the gold and silver thread and the type of threads to be combined, and are not particularly limited. 1) It is extremely flexible and has a high luster, 2) This luster does not change during the twisting stage, weaving, or dyeing process, and 3) It does not harm human skin. It also does not deteriorate due to sweat etc. 4) It is a thin piece that can be assimilated with natural fibers etc. and can be twisted mechanically to be homogeneous.

It is preferable to satisfy the following conditions.

For this purpose, the thickness should be 0.005 to 0.012 mm, the width should be 0.05 to 0.10 mm, and preferably the thickness should be 0.007 to 0.00 mm.
．． It is best manufactured by cutting an unprecedentedly thin foil sheet of 0.01 mm and width of 0.05 to 0.07 mm into ultra-fine pieces, then cutting the flat foil thread into lengths of about 20 to 50 mm.
In addition, its structure is chemically stable, as the metal layer is protected by a chemical conversion coating by chromate treatment, a thin nickel film by nickel plating, or a lamination of synthetic resin films, as described in Japanese Patent Application No. 81,650/1982. It is preferable to use a material with mechanical strength.

The foil sheet may be cut into flat foil threads using a micro slitter as in the conventional method, but this method is difficult to apply only to rigid foil sheets with a thickness of 0°015 to 0.03 mm.
However, the production of flat foil threads having a width of about 0.25 to 0.3 mm is the limit, and it is not suitable for obtaining the above-mentioned strips.

Therefore, the cutting of a thin and flexible foil sheet suitable for this invention is as follows:
Guillotine cutting is preferred; in this method, a foil sheet is placed on an underlay with an uneven surface, such as paper or a board with a corrugated surface, and then cut to obtain a short fibrous flat foil yarn with an irregular cross section. You can also do that.

The use of a short fiber flat foil yarn having an irregular cross section increases the exposure effect and brightness of the metallic luster in the gold and silver yarn.

The gold and silver thread of the present invention has a shape in which a short fibrous flat foil thread 2 is sandwiched between a plurality of threads 1a and lb twisted together as shown in FIG. As shown in the figure, a plurality of yarns 1a, 1b, IC, 1d are heated using a rotating heating device.
When twisting, the yarns 1a, 1b, I C, l
It can be manufactured by supplying the short fibrous foil yarn 2 between the gaps d.

Supply of foil yarn 2, i.e., yarn 1 a, 1 b, I C, 1 d
The intertwisting of the parts may be continuous or intermittent,
When fed continuously, a product with an appearance similar to a blended yarn is obtained, and when fed intermittently, a product with exposed foil yarns in a nep-like manner is obtained.

In any case, the gold and silver thread of the present invention becomes a thread with a good texture and an elegant metallic luster.

Note that the yarns 1a, 1b, I used in this example
C and ld may all be the same yarn, but by using a combination of yarns of different thicknesses, colors, materials, etc., a more attractive product can be obtained.

Example (1) Ag was deposited on a film, and the resulting deposited film was deposited with Cr.
It is immersed in a chromate treatment solution containing (PO3)2 as the main component, electrolytically treated, and the treated surface is attached to another film with adhesive.
Transfer, expose the Ag surface, immerse the Ag surface in the above treatment liquid and electrolytically treat it again, prepare a foil sheet (about 0.01 mm thick) with a film attached to the treated surface with an adhesive, Width 0
．． The fibers were cut into threads of 0.6 mm and further cut into lengths of about 3 Q mm to produce short fibrous foil threads.

This short fibrous foil yarn was immersed in Bath A below for 60 seconds, washed with water and dried.

Bath A H3P04 (75%) 19 g/IC
r 03 149/ 1HF (55
%) 5A&/1Cr(NO3)
3-9H20179/ 1CO(NO3)2・6H20
1-, Bg/IPH1,7 The short fibrous foil yarn had a pure silver color with no discoloration and was extremely excellent in sweat resistance and sulfur resistance.

When this short fibrous foil yarn was sprayed into the yarn when two nylon filament yarns were being twisted, a gold and silver yarn having an appearance similar to a blended yarn with an elegant silver luster scattered therein was obtained.

This intertwisted yarn had metal exposed on the side surface of the short fibrous foil yarn, so it could be used for various purposes without generating static electricity.

Example (2) A polyethylene terephthalate film 豦25 (25/1000 mm) was subjected to a conventional activation treatment, and then subjected to a silver mirror reaction using a direct silver nitrate reduction method to form a silver surface on one side of the film. Wash the sheet with pure water,
After drying, the following composition was prepared at pH 12 and liquid temperature at 30°C.
The sample was immersed in a bath of 0.2 A/d m for 2.15 seconds.

Nickel chloride 30El/1 Sodium hypophosphite 10i/1 Sodium citrate 659/1 Ammonium chloride
50 g/l Sodium hydroxide An extremely thin nickel film was slightly formed on the silver surface of the silver sheet.

This nickel coating surface is used as an adhesive layer (also works as a protective film).
Then, after heat treatment if necessary, the polyethylene terephthalate film Φ25 was peeled off, and the exposed silver surface was treated in the same manner as described above using the above bath. A nickel film was formed, and a 3 μm polyethylene terephthalate film was attached using an adhesive.

The thus obtained sheet consisting of 3μ film/adhesive/nickel thin film/silver/nickel thin film/adhesive/film 3μ was cut using a guillotine on a corrugated underlay sheet.
A short fibrous foil yarn with an irregular cross section was obtained.

When this short fibrous foil thread was intermittently supplied with twisted silk threads, an interesting gold and silver thread with thin foil threads exposed here and there in a nep-like manner was obtained.

In this invention, the very thin short fibrous foil yarns are twisted together so as to be sandwiched between two or more yarns, so the short fibrous foil yarns have a fluffy or cotton-like irregularity. When twisted together, the result is a product with a different metallic luster, such as nep-like formations in places.Moreover, the product's texture is almost the same as that of ordinary yarn without using foil yarn, and it is flexible, so it can be used extensively without any discomfort. It is possible.

[Brief explanation of drawings]

FIG. 1 is a plan view showing an example of the gold and silver thread of the present invention, and FIG. 2 is an explanatory diagram illustrating the method of manufacturing the gold and silver thread of the present invention. 1 a, 1 b, I C, 1 d... Yarn, 2.
...Foil thread.

Claims (4)

[Scope of utility model registration request] (1) It is made by twisting two or more yarns, and the twisted yarn has a thickness of 0.005 to 0.01 mm obtained from flat foil yarn.
2mm, width 0.05-0.10mm, length 20-50
A gold and silver thread characterized in that short fibrous foil threads of mm in length are twisted together so as to be sandwiched between the threads. (2) The gold and silver thread according to claim (1) of the utility model registration, characterized in that the flat foil thread is obtained by cutting a foil sheet using a guillotine on an underlayment having an uneven surface. (3) The gold and silver thread according to claim (2), wherein the short fibrous foil thread has an irregular cross section. (4) Utility model registration claims (1) to (3) characterized in that the metal layer of the short fibrous foil yarn is protected with a chemical conversion coating formed by chromate treatment or a nickel thin film formed by nickel plating. Gold and silver thread as described in any of the paragraphs.