JPH01250470A - Metallic luster woven or knitted fabrics having a capacity of insulating thermal radiation - Google Patents

Abstract

PURPOSE:To obtain metallic luster woven or knitted fabrics having function to insulate the heat rays which bring cold feeling to the cloth wearers with increased durability, by forming thin films of stainless steel on the surfaces of woven or knitted fabrics. CONSTITUTION:Thin films of stainless steel 2 are formed on the surface of woven or knitted fabric 1 made of synthetic, regenerated or natural fibers by e.g., sputtering. In order to protect the tin films, a protecting resin layer 4 of a thermosetting or thermoplastic resin is formed thereon. Without being damaged by scouring, bleaching or dyeing using acids, alkalis and bleaching agents, metallic luster woven or knitted fabrics excellent in heat rays insulation and metallic appearance are obtained with duration.

Description

Detailed Description of the Invention [Technical Field] The present invention relates to a novel metallic glittering woven or knitted fabric having a heat ray blocking function, and more particularly to a metallic glittering woven or knitted fabric having a novel heat ray blocking function.
The present invention relates to a metallic luster woven or knitted fabric which has durability against post-processing treatments such as scouring, bleaching and dyeing applied to knitted fabrics and non-woven fabrics, and has an 8-ray isolation pattern which also has a heat ray blocking function and provides a cool feeling on clothing.

[Prior Art] Conventionally, fabrics using flat threads made by cutting thin metalized films made by vapor-depositing aluminum onto a thermoplastic resin film and forming a protective resin layer on top have been used as heat ray shielding devices. It is known as a woven or knitted fabric with metallic luster.

[Problems to be solved by the invention] However, in the conventional example described above, aluminum is vapor-deposited on a thermoplastic resin film and a protective resin layer is formed thereon. Metal glittering woven or knitted fabrics having a heat ray blocking function have extremely poor durability because the aluminum vapor deposited layer is exposed on the cross section of the flat yarn. For example, wool products are generally dyed using strong acid as an auxiliary agent, so washing with water may not be sufficient and the acid tends to remain in the wool.Products with this residual acid may be difficult to dye when using the above-mentioned flat threads, or the acid may remain in the wool. When a product containing an acid and a product using the metallic glitter fabric with the above-mentioned 8-wire blocking function are stored in contact with each other, there is a slight difference in the degree of progress depending on the temperature and humidity. This results in the metallic luster disappearing completely.

Also, is it a flat plate having a hot wire M disconnector in the conventional example? Fabrics using thread! & When applying post-processing treatments such as scouring, bleaching, and dyeing to objects, the aluminum vapor deposited layer may be exposed to acids, alkalis,
Since it is easily attacked by chemicals such as bleach, if the aluminum is deposited under normal post-processing conditions, it will disappear or be eroded and the metallic luster will disappear, so the types of acids, alkalis, bleaches, etc. There are restrictions on conditions such as liquid concentration, temperature, and processing time. For this reason, the flat threads having an 8-wire blocking function and the fibers that can be woven and knitted in the conventional examples are limited to nylon and rayon.

It is just m-fiber such as acrylic and acetate, wool, silk,
In many cases, cotton and polyester could not be used.

As described above, the range of use of the metallic luster woven or knitted fabric having a heat ray blocking function in the conventional example is extremely limited.

In view of the above-mentioned conventional problems, the present invention has excellent durability, and is particularly durable for post-processing such as scouring, bleaching, and dyeing applied to woven and knitted fabrics, and also has a heat ray shielding function that can be used on clothing. It is an object of the present invention to provide a metallic luster woven or knitted fabric having a heat ray shielding ItFr function that provides a cool feeling.

[Means for Solving the Problems] The metallic glittering woven or knitted fabric having a heat ray shielding glIT function of the present invention is a woven or knitted fabric used as clothing, and is characterized in that a thin film of stainless steel is formed on the surface of the woven or knitted fabric. It is said that

[Function] The stainless steel thin film used in the present invention has significantly superior durability compared to the conventional example in which flat threads of aluminum having a heat ray shielding function are deposited. When woven or knitted fabrics are subjected to post-processing treatments such as scouring, bleaching, or dyeing, such as when using flat threads with a blocking function, the thin stainless steel film is attacked by chemicals such as acids, alkalis, and bleaching agents. Since the thin film of stainless steel will not disappear or be eroded and the metallic luster will not disappear, there are no restrictions on the type of acid, alkali, bleach, etc., and conditions such as concentration, temperature, and treatment time of the treatment solution can be set. Therefore, there are no particular restrictions on the metallic glitter woven or knitted fabric having a heat ray blocking function of the present invention, and in addition to fibers such as nylon, rayon, acrylic, acetate, wool, Ml, cotton, polyester, etc. Fabrics made of fibers,! Another advantage is that nonwoven fabrics (hereinafter simply referred to as fabrics) can also be used.

[Example] Next, a metal glittering woven or knitted fabric having an 8-wire blocking function of the present invention will be explained based on the drawings.

1 to 3 are schematic partial cross-sectional views showing examples of the metallic luster woven or knitted fabric having a heat ray blocking function according to the present invention, and the one shown in FIG. The basic structure of the metallic woven and knitted fabric, which has a metallized film laminated with a stainless steel f'J film (2) and has a heat ray blocking function according to the present invention, is shown in FIGS. 2 and 3. In Figure 0, which shows the structure of another embodiment of the metal glitter woven or knitted fabric having a heat ray shielding function of the present invention, (11 is a cloth, and (2) is a cloth on the surface of the cloth (1). If directly required, it is a thin film of stainless steel provided through an undercoat layer, and (■) is a protective resin layer (A) provided on the surface of the thin film (2) of stainless steel, and ((G) is essentially a fabric (1)
This is an undercoat layer provided between the stainless steel thin film (2) and the stainless steel thin film (2).

There are no particular restrictions on the fabric (1) used in the present invention, but it is usually used with a thickness of about 1[]g/*" to 5 (JOg/I).If the thickness is less than 10g/*2 It is not practical because it is too soft, wrinkles occur, it is easy to process unevenly, and product loss increases, and on the other hand, the thickness is 500 mm.
If it exceeds g/■2, the fabric becomes hard and inflexible, impairing the feel of clothing and thus being impractical. Furthermore, 1
For example, in the case of a material such as lace having a weight of less than 0 g/2, a plastic film may be temporarily attached as a carrier on the back side of the fabric (1) and a process such as vapor deposition may be performed.

Further, the fabric (1) may have an undercoat layer applied to its surface in advance.

The undercoat that forms the undercoat layer (base coat) must have vapor deposition suitability, adhesion to the fabric (1), and the ability to improve gloss. Examples of materials that satisfy all of the above include epoxy-isocyanate resins and melamine-acrylic resins.The undercoat layer can be formed by applying an undercoating agent such as epoxy-isocyanate resins by roll coating, gravure coating, reverse coating, or spray coating. This is carried out by applying a coating method such as a normal coach ink method or a deep coating method, followed by drying.

The thickness of the undercoat layer is usually selected from the range of 0.2 to 5 mm, more preferably from the range of 0.5 to 4 mm. Thickness is 0.2M
If it is less than 5, it will not be possible to completely cover the fabric surface, and the undercoat effect such as improvement of vapor deposition suitability and gloss imparting will not be fully exhibited, so there is no value in forming an undercoat layer.On the other hand, if it exceeds 5, the undercoat will The layer is too thick, which impairs the texture and slows down the drying speed, making it inefficient. Furthermore, the undercoat forming the undercoat layer may be suitably colored with a colorant in advance.

Stainless steel thin film (2) provided on the fabric (1) surface
Examples of the stainless steel thin film used for this include those made by vapor-depositing low carbon stainless steel.

Especially low carbon, chromium 17-19% (heavy weight %, same below)
, a metallic glittering woven or knitted fabric made of vapor-deposited stainless steel containing 7 to 12% nickel, which has a color that matches the human aesthetic sense, an excellent metallic feel, and a heat ray blocking function obtained by a synergistic effect with the fabric (1). is preferably used because it has extremely excellent durability and has an excellent heat ray shielding part.

If the chromium content is less than 17%, corrosion resistance is poor, especially for wool dyeing,
It is not practical because it cannot withstand acid treatments such as cotton bleaching, and on the other hand, if it exceeds 19% chromium, the color tone becomes dark and the internal stress increases, making it easy to cause cracks and the like, so it is not practical. Also, if nickel is less than 7%, chromium is 19%.
If the nickel content exceeds 12%, the color tone becomes dark and the internal stress increases, making cracks more likely to occur, making it impractical.On the other hand, if the nickel content exceeds 12%, the chromium content becomes 17%.
Poor corrosion resistance, especially when dyeing wool.

It is not practical because it cannot withstand acid treatments such as cotton bleaching.

In particular, the stainless steel thin film (2) provided on the fabric <1) is made by vapor-depositing the stainless steel, and its thickness is not particularly limited, but it is preferably about 30 to 200 coats. If the thickness is less than 30nm, the metallic luster is insufficient and it is not practical.On the other hand, if the thickness exceeds 200nm, the metallic luster and corrosion resistance are sufficient, but the economic efficiency is poor and it is not practical.

In Specification 3 of the present application, vapor deposition means forming a thin film by a Q film forming method such as a normal metal (including alloys and metal compounds, the same applies hereinafter) such as a vacuum vapor deposition method, a sputtering method, an ion blating method, etc.

In addition, a thin stainless steel film provided on the fabric (11 sides)
2) Since the 8FIJ itself has low mechanical strength and is easily damaged by friction, a protective resin layer (■) may be provided on the surface of the stainless steel 8FIJ (2), but there are particular restrictions on its thickness. Although not a certain value, a range of 0.5 to 5 μs is preferable. If the thickness is less than 0.5 μs, the protective effect will be small and it will not be practical as a protective resin layer.
If it exceeds this value, the effect will not change, but it will not be economical, and furthermore, the flexibility of the entire sheet will be impaired, making it impractical.

The resin coating for forming the protective resin layer (on the protective resin layer) may be made of, for example, thermoplastic resin, thermosetting resin, electron beam curable resin, or ultraviolet curable resin, such as acrylic resin. , styrene resin system, acrylic-styrene copolymer, vinyl chloride resin system, vinyl acetate resin system, vinyl chloride-vinyl acetate copolymer, polyamide resin system, polyvinyl-butyral copolymer, polycarbonate resin system, nitrocellulose resin system , cellulose acetate resin, urethane resin, resin, urea resin,
Examples include resin coatings made of melamine resins, urea-melamine resins, epoxy resins, alkyd resins, aminoalkyd resins, rosin-modified maleic acid resins, etc. alone or in mixtures.

The protective resin layer can be formed by applying the resin paint for forming the protective resin layer using well-known general methods such as roll coating, gravure coating, reverse coach ink, spray coating, dip coach ink, etc. This can be done by applying the coating using a standard coach ink method and drying (curing in the case of thermosetting resin, electron beam curable resin, ultraviolet ray curable resin, etc.).

Example 1 Stainless steel SO3304 was deposited on one side of polyester fiber A with a plain weave structure by sputtering in an argon gas atmosphere of 8 x 10-') with an input power of 1.2 films. A thin film of stainless steel having an average thickness of 50 parts is formed to form the hot wire layer lt1? of the present invention. A metallic glitter woven or knitted fabric with excellent mechanical properties was obtained.

The resulting metallic luster woven or knitted fabric with heat ray blocking function exhibited a beautiful color tone rich in metallic feel.

Example 2 A mixture of 100 parts of an epoxy-isocyanate resin paint (by weight, the same shall apply hereinafter) mixed with 50 parts of a mixed solvent consisting of methyl ethyl ketone and toluene was applied on one side of a plain knitted wool fabric by a conventional method and dried. hand? An undercoat layer with a uniform thickness of 3 μs is formed, and stainless steel SO3304 is formed on the undercoat layer.
A thin film of stainless steel with an average thickness of about 60 mm was formed by sputtering in an argon gas atmosphere of s x lo-') at an input power of 1.2 watts. A mixture of 100 parts of melamine-acrylic resin transparent paint and 50 parts of a mixed solvent consisting of toluene and methyl ethyl ketone was applied onto a stainless steel thin film using a conventional method and dried to form a transparent protective resin layer with an average thickness of 3 μs. Then, the heat ray shield of the present invention! A metallic glitter woven or knitted fabric having ITja ability was obtained.

The resulting metallic luster woven or knitted fabric with heat ray blocking function exhibited a beautiful color tone rich in metallic feel.

Example 3 A mixture of 100 parts of melamine-acrylic resin paint and 50 parts of a mixed solvent consisting of methyl ethyl ketone and toluene was applied on one side of a 16-momme tissue by a conventional method and dried to obtain an average thickness of 21 mm. An undercoat layer is formed, and stainless steel SO3304 is deposited on the undercoat layer by sputtering in an argon gas atmosphere of 5 x 10-') under the condition of an input power of 1.2 layers w. Nine films of stainless steel with a thickness of about 60 parts m were formed, and then 100 parts of a nitrocellulose resin-based transparent paint was mixed and adjusted with 50 parts of a mixed solvent consisting of methyl ethyl ketone and ethyl acetate on the stainless steel thin film using a conventional method. The coating was coated and dried to form a transparent protective resin layer having two average thicknesses, thereby obtaining the metallic luster woven or knitted fabric having a heat ray blocking function according to the present invention.

The resulting metallic luster woven or knitted fabric with heat ray blocking function exhibited a beautiful color tone rich in metallic feel.

Example 4 A mixture prepared by mixing 100 parts of nitrocellulose-epoxy resin paint with 50 parts of a mixed solvent consisting of methyl ethyl ketone and toluene was applied on one side of a bleached cotton fabric by a conventional method and dried to form a base coat with an average thickness of 31a. A layer of stainless steel 5US304 was deposited on the undercoat layer by sputtering in an argon gas atmosphere of 5 x In-' torr with an input power of 1.2 layers to an average thickness of 60 nm.
Form a thin film of stainless steel, and then remove the stainless steel. ! Epoxy-isocyanate resin paint 10 on the membrane
A mixture of 0 parts and 50 parts of a mixed solvent consisting of methyl ethyl ketone and toluene is coated and dried by a conventional method to form a transparent protective resin layer with an average thickness of 31 cm, thereby producing the metallic brightness having a heat ray blocking function of the present invention. I got a woven and knitted fabric.

The obtained metallic luster □ woven or knitted fabric having #f-ray blocking) a-gold exhibited a beautiful color tone rich in metallic feel.

Example 5 Polyester fiber nonwoven fabric (Lovesheet 2047F1.
A mixture of 100 parts of epoxy-isocyanate resin paint and 50 parts of a mixed solvent consisting of methyl ethyl ketone and toluene was applied on one side of the film (manufactured by Unitika Co., Ltd.) by a conventional method and dried to form a base coat with an average thickness of 31 mm. Form a layer and apply 5X10 stainless steel m5Us 304 on the undercoat layer.
-'Input power 1.2K in Thor's argon gas atmosphere
Deposited by sputtering under conditions of w to an average thickness of 6
After forming a stainless steel Q film of 0 parts m, 10 parts of nitrocellulose resin transparent paint was applied on the stainless steel thin film.
A mixture of 0 parts and 50 parts of a mixed solvent consisting of methyl ethyl ketone and ethyl acetate is applied and dried by a conventional method to form a transparent protective resin layer with an average thickness of 31 mm, which has the heat ray blocking function of the present invention. A metallic glitter woven or knitted fabric was obtained.

The resulting metallic luster woven or knitted fabric with heat ray blocking function exhibited a beautiful color tone rich in metallic feel.

Comparative Example 1 Aluminum was deposited on one side of a 12-thick polyethylene terephthalate film by sputtering in an argon gas atmosphere of 8 x 4 torr with an input power of 1.2 Kw to an average thickness of about 50 nm. A thin aluminum film is formed, and then a mixture of 100 parts of melamine-acrylic resin transparent paint and 50 parts of a mixed solvent of toluene and methyl ethyl ketone is coated on the aluminum film by a conventional method and dried to form a transparent film with a thickness of 11 mm. The metallized film obtained by forming a protective resin layer is cut into thin pieces with a width of 0.38 mm using a micro slitter to make flat threads, which are then woven together with wool threads, silk threads, cotton threads, and polyester threads. A metallized woven or knitted fabric having a heat-shielding FIr fabric was obtained using flat threads obtained by cutting a metallized film formed by vapor-depositing aluminum onto a plastic resin film and forming a protective resin layer thereon into narrow widths.

The resulting fabric had a beautiful color tone with a rich metallic feel.

The woven and knitted fabrics obtained in Examples 1 to 5 and Comparative Example 1 were subjected to post-processing treatments for the respective woven and knitted fabrics, and the evaluation of their post-processing fastness is shown in Table 1. The details of the post-processing are as follows.

[sheep wool]

(1) Scouring treatment liquid: Monogen Ig, water 1, treatment temperature = 50°C, treatment time, 30 minutes (2) Whitening treatment liquid: Hyde mouth sulfite 2g, water 11 treatment temperature =
50°C Processing time: 1Wkf (3) Dyeing treatment liquid: Adjust to p112 with sulfuric acid Treatment temperature: 100°C Processing time: 1 hour [set] (1) Scouring treatment liquid 3g of silicate soda, 1g of soda ash, Marcel Soap 3g, Hydrosulfide Ig, Wood In Processing temperature: 100°C Processing time: 5 hours (2) Bleaching solution: Sodium silicate Ig, il! S hydrogen oxide 3g,
Water treatment temperature: 100°C Treatment time: 2 hours (cotton) (1) Scouring treatment liquid: caustic soda 1g, soda carbonate -1g, monogen 3g, water treatment temperature 2 100°C Treatment time = 2 hours ( 2) Bleaching solution: 2 g of sodium chlorite, 1 part of water, 1 p with formic acid
Adjust to 2 Processing temperature = 90°C Processing time = 1O min (polyester) (1) Scouring processing liquid: 2 g of soda carbonate, 1 water, Processing temperature: 10 °C Processing time = 20 minutes (2) Dyeing processing liquid: Nonionic surfactant 1g, 80% acetic acid Ig, water Treatment temperature: 130°C Treatment time: 90 minutes (3) Cleaning treatment liquid: Hyde sulfite 2g, caustic soda 1.
5g, nonionic surfactant 1g, water 1g Treatment temperature +
100'C treatment time 111220 minutes Evaluation was made according to the following criteria.

O: No decrease in metallic luster was observed △: Slight decrease in metallic luster was observed ×: Significant decrease in metallic luster was also observed in Examples 1 to 5 and Comparative Example 1 The heat ray transmittance of metallic glitter woven and knitted materials with heat ray blocking function is shown in Table-
Effects of the 6C invention as shown in Example 2] As explained in Examples 1 to 5 and Comparative Example 1, according to the present invention, it has excellent heat ray blocking properties, gives a cool feeling to the wearer, and has a rich metallic feel. Moreover, a metallized film with excellent weather resistance can be obtained.

Table-1 Table-2

[Brief explanation of the drawing]

FIG. 1 is a cross-sectional view showing the basic structure of the metal glitter woven or knitted fabric having a heat ray blocking function of the present invention, and FIGS. FIG. 2 is a cross-sectional view showing the configuration of an embodiment example. (Drawing codes) (1): Fabric (2) Stainless steel thin film (3): Undercoat layer (A): Protective resin layer

Claims (1)

[Claims] 1. A metal glittering woven or knitted fabric having a heat ray blocking function, which is used as clothing and is characterized by having a thin stainless steel film formed on the surface of the woven or knitted fabric.