JP2878720B2 - Flame retardant gold and silver thread - Google Patents

Description

Description: TECHNICAL FIELD The present invention relates to a flame-retardant gold-silver yarn. More specifically, the gold and silver yarn itself burns easily even when used for curtains, carpets, bedding, clothes, etc. in public facilities such as inns, hotels, public halls, halls, movie theaters, hospitals, nursing homes, etc. Not about flame retardant gold and silver yarn.

[Prior Art] Hitherto, as a gold / silver thread, a thread obtained by cutting a laminated film, which is formed by sequentially forming an aluminum vapor-deposited layer and an overcoat resin layer on both sides of a polyester film, into narrow widths, has been known.

[Problems to be Solved by the Invention] However, the conventional gold and silver yarns have the following disadvantages.

In other words, a laminated film in which an aluminum vapor-deposited layer and an overcoat resin layer are formed on a polyester film is cut into narrow widths, so that it can be easily burned, including personal use, inns, hotels, public halls, halls, and movies. Once used for curtains, carpets, bedding, clothes, etc. in public facilities such as halls, hospitals, nursing homes, etc., once a fire etc. occurs, conventional curtains using gold and silver thread, carpets, bedding, clothes, etc. will spread. Has a very serious problem in terms of flame prevention.

SUMMARY OF THE INVENTION The present invention has been made in consideration of the above-described conventional problems, and has as its object to provide a flame-retardant gold / silver yarn that does not easily burn and can be used with ease in curtains, carpets, bedding, clothes, and the like.

[Means for Solving the Problems] The present invention relates to a resin film having a large tensile strength with two pieces of a film formed by providing a flame-retardant resin coating film on one side of an aluminum foil, with the aluminum foil inside. The present invention relates to a flame-retardant gold-silver yarn obtained by cutting a laminated film having a structure laminated on both sides via a flame-retardant resin adhesive into narrow widths.

[Function] The aluminum foil used in the present invention does not burn as compared with the conventional example in which the aluminum vapor-deposited layer of gold-silver thread has an extremely large surface area per unit weight and is extremely easy to burn. Further, since an expensive continuous vacuum evaporation apparatus is not required, there is an effect that it is easy to cope with high-mix low-volume production.

The flame-retardant resin film used in the present invention has a synergistic effect with the aluminum vapor-deposited layer because the overcoating resin layer of the gold and silver yarn in the conventional example is a normally flammable resin film such as a high solid lacquer or a fibrous material. Although the gold and silver yarns are made more flammable, the flame-retardant gold and silver yarns of the present invention do not burn.

The flame-retardant resin adhesive used in the present invention also does not burn like the flame-retardant resin coating film.

The resin film having a high tensile strength used in the present invention is used in the present invention as a yarn having a fineness, knitting property, braiding property, etc. in the flame-retardant gold-silver yarn of the present invention obtained by cutting a laminated film into a narrow width. Has the effect of imparting necessary physical properties.

[Example] Next, the flame-retardant gold-silver yarn of the present invention will be described with reference to the drawings. FIG. 1 is a perspective view of the flame-retardant gold-silver yarn of the present invention, and the inside of a circle is a schematic enlarged sectional view showing the configuration. FIG. 2 is a schematic partial sectional view showing an embodiment of a twisted yarn obtained by combining the flame-retardant gold-silver yarn of the present invention with another yarn. In the figure (10)
Is a flame-retardant gold-silver thread, (11) is a flame-retardant resin coating, (12) is an aluminum foil, (13) is a flame-retardant resin adhesive, (14) is a resin film with high tensile strength, (20) is It is a thread.

The resin used for the flame-retardant resin coating film (11) constituting the flame-retardant gold-silver thread (10) is not particularly limited, but it is required that the resin has excellent adhesion to the aluminum foil, It is necessary to combine the property with self-extinguishing. As the resin satisfying such requirements, for example, any of a thermoplastic resin, a thermosetting resin, an electron beam-curable resin, and an ultraviolet-curable resin is used. For example, acrylic resin, vinyl chloride-vinyl acetate copolymer, polycarbonate , Urethane-based resins, urea-based resins, melamine-based resins, urea-melamine-based resins, epoxy-based resins, alkyd-based resins, aminoalkyd-based resins, rosin-modified maleic resins, and the like, alone or in combination.

Although there is no limitation on the thickness, the thickness of the flame-retardant resin coating film is generally selected from the range of 0.5 to 5 μm, preferably the range of 0.5 to 3 μm. If the thickness is less than 0.5 μm, the aluminum foil cannot be sufficiently protected, and the metallic luster is undesirably reduced. If the thickness is more than 3 μm, the texture becomes poor, which is not preferable in terms of economy. In order to make the self-extinguishing property complete, a flame retardant additive is added.

There is no particular limitation on the flame retardant additive used in the present invention,
For example, phosphate esters (tricresyl phosphate,
Tributyl phosphate, 2 biphenyl phosphate,
Diphenylcresyl phosphate, diphenyloctyl phosphate, beta chloroethyl phosphate, triphenyl phosphate), chlorides (paraffin chloride, diphenyl chloride), antimony oxide, and the like can be used.

The formation of the flame-retardant resin coating film is performed by using an organic solvent solution of the resin for forming the flame-retardant resin coating film, an aqueous solution, or the like, by a roll coating method, a gravure coating method, a reverse coating method, or a spray coating method. It is performed by applying by a coating method and drying (curing in the case of a thermosetting resin, an electron beam curable resin, an ultraviolet curable resin, or the like). The flame-retardant resin coating film can be colored to a desired color by appropriately adding ordinary dyes, pigments, special dyes such as phosphorescent fluorescent light, pigments, and the like to a solution for forming the flame-retardant resin coating film.

The thickness of the aluminum foil (12) constituting the flame-retardant gold-silver thread (10) is generally selected from the range of 4 to 20 μm, preferably the range of 6 to 8 μm. When the thickness of the aluminum foil is less than 4 μm, the price of the aluminum foil is high and it is difficult to obtain a wide and long aluminum foil, which is not preferable. On the other hand, if it exceeds 20 μm, it becomes a rigid gold-silver thread and lacks in feeling, so it is not suitable for general use and is not preferred.

The flame-retardant resin adhesive (13) for constituting the flame-retardant gold-silver thread (10) is not particularly limited, but it has excellent adhesion to the aluminum foil and the resin film having high tensile strength. Is required,
It is necessary to have both heat resistance and self-extinguishing properties. Adhesives satisfying such requirements include, for example, acrylic, vinyl acetate, vinyl chloride, polyethylene, and styrene-based adhesives.
Butadiene or other emulsion adhesive alone or blended, ethylene-vinyl acetate, chlorinated polypropylene, vinyl chloride-vinyl acetate, acrylic, acryl-vinyl chloride-vinyl acetate, phenol, xylene, petroleum Resin type, urea type, melamine type, unsaturated polyester type, alkyd type, epoxy type, urethane type,
Examples thereof include those in which a flame retardant additive is blended into a single or blend of an organic solvent-based adhesive such as a silicone-based or furan-based adhesive.

The flame-retardant resin adhesive (13) is prepared by applying an emulsion or organic solvent solution of these adhesives by ordinary coating such as roll coating, gravure coating, reverse coating, or spray coating, and drying. Will be The thickness of the flame-retardant resin adhesive is usually in the range of 0.5 to 5 μm, more preferably 0.5 to 5 μm.
It is selected from the range of 3 μm. If the thickness of the adhesive is less than 0.5 μm, sufficient adhesive strength cannot be obtained, which is not preferable. 5
Even if the thickness exceeds μm, the adhesive strength is not changed, and the feeling is impaired.

The resin film (14) having a high tensile strength for forming the flame-retardant gold-silver thread (10) is not particularly limited, and examples thereof include resin films such as polyethylene terephthalate, polyamide, polyamideimide, and polycarbonate. Among them, a stretched polyethylene terephthalate resin film is preferred in terms of price, strength, handleability, and the like. Its thickness is usually about 4 to 25 μm.

The laminated film thus obtained is cut into a narrow width of about 0.15 to 5 mm with a microslitter to obtain the flame-retardant gold-silver thread of the present invention.

The flame-retardant gold-silver yarn of the present invention may be used as it is as a flat yarn, but may be round-twisted to a core yarn, twisted in a garment, twisted in a bellows, or formed using the flame-retardant gold-silver yarn of the present invention as a core. The yarn may be twisted by, for example, twisting the yarn.

Since most of the structure of the flame-retardant gold-silver yarn of the present invention, including the outermost flame-retardant resin coating film, is made of a flame-retardant or non-flammable material, the flame-retardant gold-silver yarn itself does not spread due to a fire or the like.

 Next, the present invention will be described with reference to examples.

Example 1 A paint for a combustible resin coating comprising 50 parts of a two-part epoxy-isocyanate resin, 5 parts of tricresyl phosphate, 20 parts of ethyl acetate, 20 parts of methyl ethyl ketone and 10 parts of cyclohexanone on one side of an aluminum foil having a thickness of 7 μm. Is applied by a gravure method, dried, and cured by heating to a thickness of 1 μm.
m, and two pieces of a film having a flame-retardant resin film provided on one side of an aluminum foil were prepared.

Next, 50 parts of a two-component polyurethane resin were placed on both sides of a 12 μm thick biaxial 4-stretched polyethylene terephthalate film,
Tricresyl phosphate 5 parts, methyl ethyl ketone 45
The aluminum foil was laminated on one side of the aluminum foil by using a flame-retardant resin adhesive comprising one part of the aluminum foil with the aluminum foil side facing inward to form a laminated film.

The obtained laminated film was cut into a narrow width of 120 cuts (0.252 mm width) with a micro slitter to obtain a silver flame-retardant gold-silver thread of the present invention.

Example 2 A gold-colored flame-retardant gold and silver of the present invention was obtained in the same manner as in Example 1, except that the paint for a flame-retardant resin coating film to which 5 parts of an orange dye was added was used.

[Effects of the Invention] The flame-retardant gold-silver yarns obtained in Examples 1 and 2 were woven together with a polybenzimidazole (Celanese, USA).

The desired metallic pattern was expressed on the obtained woven fabric.

 Other physical properties are as follows.

Heat resistance: JIS K 6328 No abnormality Flameproof: JIS L 1091 A2 method (45 ° Meckel burner method) Residual dust time 0 seconds Residual flame time 0 seconds Carbonized area 10 cm ² or less Water pressure: JIS L 1092 1000 mm or more

[Brief description of the drawings]

FIG. 1 is a perspective view of the flame-retardant gold-silver yarn of the present invention, and the inside of a circle is a schematic enlarged sectional view showing the configuration. FIG. 2 is a schematic partial sectional view showing an embodiment of a twisted yarn obtained by combining the flame-retardant gold-silver yarn of the present invention with another yarn. (Signs in the drawings) (10): Flame-retardant gold and silver yarn (11): Flame-retardant resin coating (12): Aluminum foil (13): Flame-retardant resin adhesive (14): Resin film with high tensile strength ( 20): Thread

Claims (1)

(57) [Claims] An aluminum foil having a thickness of 4 to 20 μm is coated on one side with a resin containing a flame retardant additive in a thickness of 0.5 to 5 μm.
m, two film-like objects provided with a flame-retardant resin coating film,
A flame-retardant gold / silver yarn, wherein a laminated film having a structure in which the aluminum foil is on the inside and laminated on both surfaces of a resin film having high tensile strength via a flame-retardant resin adhesive is cut into a narrow width.