JPS58220832A - Tinsel yarn - Google Patents

Abstract

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

Description

DETAILED DESCRIPTION OF THE INVENTION This invention relates to gold and silver threads which have excellent durability and can withstand post-processing treatments such as scouring, bleaching, and dyeing applied to woven and knitted fabrics.

Conventionally, gold and silver threads are known, which are obtained by cutting a metalized film formed by vapor-depositing aluminum onto a thermoplastic resin film and forming a protective resin layer thereon into slits. However, since the aluminum vapor deposited layer is exposed in the cross section of such gold and silver threads, the durability is significantly inferior. For example, wool products generally tend to have residual acids due to insufficient water washing after dyeing, but if the gold-copper thread is used for a wool product with residual acid, or if the gold-copper thread is used with a wool product with residual acid, If used products are stored in contact with each other, the aluminum vapor deposition layer will gradually be eroded, although the degree of progress will vary slightly depending on humidity and temperature, and the metallic luster will eventually disappear completely. becomes. Also, textiles using the gold and silver threads,
When performing post-processing treatments such as scouring, bleaching, and dyeing on knitted fabrics, the aluminum vapor-deposited layer is easily attacked by acids, alkalis, bleaching agents, etc., so if the post-processing is carried out under normal post-processing conditions, the aluminum vapor-deposited layer may disappear or be attacked. The type of acid, alkali, bleach, etc. used is limited, and the conditions such as the concentration of the processing solution, temperature, and processing time are also limited. For this reason, the types of fibers that can be woven and knitted with the gold and silver thread are limited, and at most only fibers such as nylon, rayon, acrylic, and acetate can be used, and wool, silk, and cotton cannot be used at all. Polyester fibers can also be used when dyed in light colors, but there are problems when dyed in deep colors. As described above, the range of use of the gold and silver threads is severely limited.

On the other hand, chromium, nickel violet or these and other metals such as copper, manganese, molybdenum,
It is known that metallized films deposited with alloys such as titanium have excellent corrosion resistance and can be used for gilt-copper threads (see Japanese Utility Model Publication No. 49-29672). However, according to the studies conducted by the present inventors, the gold and silver thread obtained from this metallized film is superior to the gold and silver thread having an aluminum vapor-deposited layer, but the metallized film The problem seems to be that it is essential to provide an anchor coating layer made of a thermosetting resin prior to vapor deposition.In other words, providing an anchor coating layer not only increases the number of steps and reduces productivity. When the anchor coating layer is cured, heating at high temperatures and for a long time is required, so extra heat is applied to the thermoplastic resin film as the base film, which reduces the strength of the thermoplastic resin film and therefore makes it difficult to use gold. When used as a silver thread, the strength of the gold and silver thread is inferior, leading to thread breakage during weaving and knitting.

However, as a result of various studies in order to solve the problems of the prior art as described above, the present inventors used a polyethylene terephthalate film as a base film and directly formed a thin film of an alloy of chromium and nickel thereon. It was concluded that the metallized film has outstanding durability and is ideal for gold and silver thread applications. We have discovered a new fact, and based on this fact, we have completed the present invention.

That is, the present invention involves laminating two metallized films in which a thin film of chromium-nickel alloy is directly formed on one side of a polyethylene terephthalate film through an adhesive layer with the thin film inside, and then cutting the films into slits. Regarding the characteristic gold and silver thread.

A feature of the present invention is the use of a metallized film in which a thin film of chromium-nickel alloy is formed directly on a polyethylene terephthalate film.

Metals such as chromium and nickel have better corrosion resistance than aluminum, so 4F, which has a thin film of these metals formed on a thermoplastic resin film, is a metallized film that has better corrosion resistance than a metalized film with a thin aluminum film. It was expected that a film would be obtained, but as stated in the above-mentioned Utility Model Publication No. 49-29672 from the bottom of column 1, line 5 to column 2, line 1, contrary to expectations, the corrosion resistance was not as good as expected. It is. The invention related to the above-mentioned publication attempts to solve this problem by using an anchor coating layer made of a thermosetting resin, but as mentioned above, the addition of the process of forming the anchor coating layer reduces productivity. A new problem arose in that the strength of the gold and silver threads decreased.

However, when the present inventors formed a thin film of a specific alloy called chromium-nickel alloy on a specific base film called polyethylene tere-7-talate film, we did not use any anchor coating layer to form a single chromium metal or a single nickel metal. Compared to thin films, the durability has been significantly improved, and the durability has been improved enough to withstand post-processing treatments such as scouring, bleaching, and dyeing, something that could not have been expected from conventional technology. In the metallized film used in the present invention, the metal thin film is a chromium-nickel alloy thin film and is formed directly without an anchor coating layer. This is completely different from the metallized film of the above-mentioned publication in which nickel is a simple metal or an alloy of these metals and other metals such as copper, manganese, molybdenum, titanium, etc., and is formed through an anchor coating layer. By omitting the anchor coating layer, the drawbacks of the metallized film of the above-mentioned publication are completely eliminated.

Furthermore, in the present invention, two of the metallized films are laminated with the chromium-nickel alloy thin film on the inside,
Durability is further improved than 1.

Next, the present invention will be explained in detail based on the drawings. 1st~
FIG. 2 is a schematic cross-sectional view showing a preferred embodiment of the gold and silver thread of the present invention.

The gold and silver thread in Figure 1 consists of two polyethylene terephthalate films (1) with a chromium-nickel alloy thin film (2) on one side, with the thin film (2) on the inside, and an adhesive layer (4).
).

FIG. 2 shows a structure in which a colored resin layer (3) is further provided on the outside of the polyethylene terephthalate film (1) of gold and silver threads shown in FIG. 1, and exhibits a metallic luster that is not limited to silvery white.

The polyethylene terephthalate film used as the base film used in the present invention is not particularly limited, and any ordinary film can be used. Usually, one having a thickness of about 6 to 50 μm is used.

A thin film of chromium-1' nickel alloy is directly formed on one side of the polyethylene terephthalate film. The weight ratio of chromium and nickel in the chromium-nickel alloy thin film is preferably in the range of 50=70 to 70:30. If the proportions of chromium and nickel are out of the above range, the fastness to post-processing will decrease, which is not preferable. If the proportion of ROM is smaller than the above range, the alloy thin film tends to be slightly brownish. This is not a problem when colored gold and silver threads are hung, but it is not preferable when uncolored silvery luster colored gold and silver threads are hung. Although the thickness of the alloy thin film is not particularly limited, it is usually preferably about 30 to 100 mμ. 30
If it is less than mμ, sufficient metallic luster cannot be achieved, and 100
A material exceeding mμ is uneconomical because the metallic luster is no different from that of a material less than that.

The chromium-nickel alloy thin film is formed by a normal thin film forming method such as a vacuum evaporation method or a sputtering method. In this case, chromium and nickel may be co-deposited,
Alternatively, a chromium-nickel alloy or a mixture of chromium and nickel may be deposited. 2 In the case of vacuum evaporation method,
The heating of the evaporation source is preferably by electron beam heating, the degree of vacuum is appropriately selected from the range of 3 x 10 to 1 x 10''), and the temperature of the evaporation source is selected from the range of 1400 to 1800 °0.Sputtering method In this case, an argon gas atmosphere of about 5.0×10 −2 to 1.0×10 −3 ) is usually employed.

When the gold and silver threads shown in Figures 1 and 2 are tied together, a thin film of chromium-nickel alloy is formed on one side of a polyethylene terephthalate film, and if necessary, a colored resin layer is formed on the other side, and then two sheets of the alloy are formed. Laminate with the thin film on the inside.

As the adhesive, epoxy resin type, urethane resin type, silicone resin type, nitrile rubber type, etc. are used as appropriate. The colored resin layer is made of thermosetting resin, such as epoxy resin,
It is formed by applying a solvent solution of one or more of amino resins, urethane resins, acrylic resins, silicone resins, alkyd resins, unsaturated polyesters, etc. and a coloring agent and drying. The colored resin layer is usually provided with a thickness of about 1 to 3 microns. A dye or a transparent organic pigment is used as the coloring agent. For example, when the colored resin layer is colored orange, it changes to a golden metallic luster and luster. When using the gold and silver threads shown in Figure #$2, the colored resin layer may be formed after the lamination process.

The gold and silver thread of the present invention can be changed by cutting the metallized film obtained as described above into an appropriate width using an appropriate cutting means such as a micro slitter. The width of the gold and silver thread is usually in the range of 0.15 to 1.5 mm. The obtained gold and silver threads may be used as flat gold and silver threads, or they may be twisted with other fibers, such as rayon, silk, cotton, Tetoron, nylon, etc., to create twisted gold and silver threads. May be used.

Since the gold and silver threads of the present invention have excellent fastness to all post-processing treatments, they can be suitably applied to woven and knitted fabrics of all types of fibers such as wool, silk, cotton, nylon, rayon, acrylic, acetate, and polyester.

Next, the present invention will be explained in detail by referring to reference examples and examples.

Reference Example 1 A viscous mixed powder of chromium and nickel [ratio of chromium and nickel, weight ratio: 50:50 (weight ratio, the same applies hereinafter)] was deposited on one side of a polyethylene terephthalate film with a thickness of 12 μm according to a vacuum evaporation method using an electron beam heating method. 4.0×10-5 torr, input power 3.OkW
The ratio of chromium and nickel was 50:
50 to form a chromium-nickel alloy thin film with a thickness of 50 mμ. Next, clear paint was applied on top of the alloy thin film.
OK"Q7 (epoxy-polyester type) manufactured by Toa Paint ■ was applied and dried to form a protective resin layer with a thickness of 1.5 .mu.m.

The obtained metallized film is 0.3
I cut it to a width of 8mm to obtain silvery-white gold and silver thread.

Reference Examples 2 to 3 Gold was prepared in the same manner as in Reference Example 1, except that a thin film of chromium and nickel alloy was formed with a ratio of chromium and nickel of 30:70 (Reference Example 2) and 70+30 (Reference Example 3). I got a silver thread.

Reference Examples 4 to 6 Gold and silver threads were obtained in the same manner as in Reference Example 1, except that aluminum (Reference Example 4), chromium (Reference Example 5), and nickel (Reference Example 6) were used alone as vapor-deposited metals.

The gold and silver threads obtained in Reference Examples 1 to 6 were subjected to post-processing treatments such as scouring, bleaching, and dyeing that are applied to wool, silk, cotton, and polyester fibers in a continuous process.

The details of the post-processing are as follows.

〔wool〕

(1) Scouring treatment liquid: 1g of monogen, water III, treatment temperature: 50°0
, Processing time: 30 minutes (2) Bleaching solution: Hydrosulfite 2F, Water 11° Processing temperature: 50°0, Processing time: 1 hour (3) Dyeing Adjust to pH 2 with sulfuric acid, Processing temperature: 100° 0, Processing time: 1 hour [Silk] (1) Scouring processing liquid: 3 g of sodium silicate, 1 f of soda ash, 3 g of Marcel soap, 1 g of hydrosulfide, 11° of water Processing temperature: 100°0, Processing time: 5 Time (2) Bleaching solution: 1f of sodium silicate, 3f of hydrogen peroxide, 111ml of water
, Processing temperature: 100°0, Processing time: 2 hours [Cotton] (1) Scouring processing solution: Caustic soda 1F, carbonate soda 1F, Monodan 3
F, water 111. Processing temperature: 100°0, processing time: 2 hours (2) Bleaching solution: Sodium chlorite 2F, water 11. Adjust to pH 3 with formic acid, treatment temperature: 9060, treatment time: 10 minutes [Polyester] (1) Scouring treatment liquid: 2F soda carbonate, water ig, treatment temperature: 100°
○, Processing time: 20 minutes (2) Dyeing Processing solution: 1F nonionic surfactant, 1F 80% acetic acid, 1g water, Processing temperature: 130°0, Processing time: 90 minutes (3)
Cleaning treatment liquid: Hydrosulfite 2f, caustic soda 1.5
f.

1 g of nonionic surfactant, 1 e of water, treatment temperature = 100°
0. Processing time: 20 minutes After processing, the metallic luster of the gold and silver threads was examined.

The results are shown in the table below. In the following table, ○ marks indicate that no reduction in metallic luster is observed, Δ marks indicate that metallic luster reduction is observed, and X marks indicate that metallic luster reduction is significant.

Example 1 A thin film of chromium-nickel alloy was formed on one side of a polyethylene terephthalate film having a thickness of 12 μm in the same manner as in Reference Example 1. Apply an adhesive [Sipinol Trir-21 (urethane resin type) manufactured by Saiden Chemical ■] to the metal thin film side of this product, dry it to form an adhesive layer with a thickness of 2.0μ, and stack two sheets at 130°0. The film was pasted between a pair of rolls heated to .

The obtained metallized film was cut into 11 pieces of o, ss mm to obtain silvery white gold and silver threads. The post-processing fastness of this product was as excellent as the gold and silver threads of Reference Examples 1 to 3.

Example 2 A thin film of chromium-nickel alloy was formed on one side of a 12μ thick polyethylene terephthalate film in the same manner as in Reference Example 1, and an orange paint [clear paint OK #25 (made by Toa Paint ■) (melamine-acrylic) was applied on the other side. Resin type) 1
00 parts by weight of Orasol Sho Orange G (Orasol
Orange G) (manufactured by Ciba Geigy)] was applied and dried to form a colored resin layer with a thickness of 1.0 μm.

Thereafter, gold and silver threads exhibiting a golden color were obtained in the same manner as in Example 1.

The post-processing fastness of this product was as excellent as the gold and silver threads of Reference Examples 1 to 3.

[Brief explanation of the drawing]

1 and 2 are schematic cross-sectional views showing preferred embodiments of the gold and silver threads of the present invention, respectively. (Drawing code) (1); Polyethylene terephthalate film (2)
: Chromium-nickel alloy thin film (3): Colored resin layer (4): Adhesive layer

Claims (1)

[Claims] 1. Two metallized films in which a thin film of chromium-nickel alloy was directly formed on one side of a polyethylene terephthalate film were laminated with the thin film on the inside via an adhesive layer, and then cut into slits. A gold-bronze thread that is characterized by 2 The weight ratio of chromium and nickel in the chromium-nickel alloy is 30:70~70! 30. The gold and silver thread according to claim 1, which is 30. 3. The gold and silver thread according to claim 1, wherein a colored resin layer is formed on the outer surface of the bonded metallized film.