JP6994710B2 - Elastic metallic luster yarn and twisted yarn using it - Google Patents

Description

The present invention relates to an elastic metallic luster yarn capable of maintaining good and stable metallic luster even when expanded and contracted, and a twisted yarn using the same.

As the metallic glossy yarn, a base film layer made of a plastic film such as a polyester film, a metal thin film layer formed by a vacuum vapor deposition method or the like using aluminum, sterling silver or other metal on the surface of the base film layer, and the metal thin film layer. Flat foil yarn having a laminated structure composed of a thin film protective layer formed on the surface and twisted yarn using the flat foil yarn are well known in the past, and these give a brilliant metallic luster to materials such as textiles, knitted fabrics, embroidery materials, and sewn products. Widely used to grant.

However, in the case of the conventional metallic luster thread, once it is stretched, a large number of irreversible cracks are formed in the metal thin film, and not only at the time of the stretching but also after the stretching is released, that is, in any state of expansion and contraction. However, it has been difficult to apply such metallic luster threads to materials such as stretchable clothing, which is a rapidly growing clothing field in recent years, because the metallic luster and brilliance are remarkably slowed down.

To solve the above problem, for example, in Japanese Patent Application Laid-Open No. 60-59146, an elastic yarn such as a polyurethane elastic fiber is wound around a glossy flat yarn such as a lame yarn in a stretched state, and then the elasticity of the elastic yarn is solved. A decorative yarn has already been disclosed in which the glossy flat yarn is shrunk so as to bend in a wavy shape by shrinkage so that the elastic yarn is entwined with the elastic yarn, thereby imparting elasticity (Patent Document 1).

Further, in Japanese Patent Application Laid-Open No. 10-1833, a foil yarn such as a gold-silver yarn or a lame yarn is wound in one direction around a core yarn made of an elastic yarn such as a polyurethane-based elastic fiber in a state where the yarn is stretched to a certain length. Twisted yarn, and another yarn is wound in the opposite direction from above, or another yarn is wound around a core yarn made by aligning an elastic yarn in a state of being stretched to a certain length and a foil yarn such as gold and silver yarn or lame yarn. A design thread that can be expanded and contracted by forming a loop around the elastic thread, such as gold and silver thread and lame thread, in a state where the elastic thread used as the core thread is unstretched. Has already been disclosed (Patent Document 2).

However, in the conventionally known elastic decorative yarns and the like, in order to secure both metallic luster and elasticity, one of a foil yarn such as a gold-silver yarn or a lame yarn and an elastic yarn such as a polyurethane-based elastic fiber is used as the other. Since it is twisted by entwining or wrapping it, even if it can exhibit its unique texture, it is inevitably lacking in metallic luster and brilliance, and it also has a feeling of stiffness, and due to these problems. The use was also greatly limited.

Japanese Unexamined Patent Publication No. 60-59146 Japanese Unexamined Patent Publication No. 10-1833 Japanese Patent No. 5294312 Japanese Patent No. 5783048

In view of the above problems, an object of the present invention is to provide an elastic metallic luster yarn that does not have a stiff feeling and can maintain excellent metallic luster and brilliance even when expanded and contracted, and a twisted yarn using the same.

As described in claim 1, the stretchable metal glossy yarn according to the present invention has a base film layer, a metal thin film layer formed on the surface of the base film layer, and a thin film protection formed on the surface of the metal thin film layer. A metallic glossy yarn containing a laminated structure composed of layers, wherein the base film layer is made of a polyurethane-based transparent elastic plastic film, the metal thin film layer is made of a discontinuous metal thin film , and the thin film protective layer is further formed. It is characterized by being transparent and having elasticity including other layer constituent members other than the base film layer, the metal thin film layer and the thin film protective layer .

The stretchable metal glossy yarn is formed on a base film layer made of a polyurethane-based transparent stretchable plastic film , a metal thin film layer made of a discontinuous metal thin film formed on the surface of the base film layer, and the surface of the metal thin film layer. It is manufactured by cutting a metal thin film-forming film containing a laminated structure composed of a transparent and stretchable thin film protective layer formed into a narrow width.

As the layer structure of the elastic metallic luster yarn, various layer structures including a laminated structure including a base film layer, a metal thin film layer and a thin film protective layer can be implemented. As a layer structure including one layer of the base film layer, for example, a normal layer structure including a base film layer, a metal thin film layer formed on the surface of the base film layer, and a thin film protective layer formed on the surface of the metal thin film layer. Or, a layer structure in which a part of the layer structure is modified within the range of the layer structure can be adopted. Further, in order to give a colored metallic luster to the layer structure, for example, as described in claim 2, a first colored layer is formed on the outside of the base film layer in the layer structure, and the metal is formed. It is possible to adopt a layer structure in which a second colored layer that also serves as a thin film protective layer is formed on the surface of the thin film layer, or a layer structure in which some aspects are modified within the range of the layer structure. Instead of forming the first colored layer on the base film layer, it is also possible to apply the required dyeing to the base film layer itself.

Further, as the layer structure of the elastic metallic luster yarn, as described in claim 3, a layer structure in which a metal thin film layer or the like is sandwiched between two base film layers can be adopted. As the layer structure, for example, as described in claim 4, a layer structure in which a second base film layer also serving as a thin film protective layer is formed on the surface of a metal thin film layer formed on the surface of the first base film layer, or the same. It is possible to adopt a layer structure in which some aspects are modified within the range of the layer structure. Further, in order to give a colored metallic luster to the layer structure, for example, as described in claim 5, a first colored layer that also serves as a pretreatment undercoat layer is interposed on the surface of the first base film layer. A layer structure in which a metal thin film layer is formed and a second base film layer is formed on the surface of the metal thin film layer via a second colored layer that also serves as a thin film protective layer, and some aspects within the range of the layer structure. A deformed layer structure can be adopted. Instead of forming the first colored layer and the second colored layer, it is also possible to apply the required dyeing to the first base film layer itself and the second base film layer itself.

Further, as another layer structure in which the metal thin film layer or the like is sandwiched between the two base film layers, for example, as described in claim 6, the metal thin film layer is formed on the surface of the base film layer. Two sets of laminated bodies are bonded to each other via an adhesive layer with each metal thin film layer inside, and the adhesive layer also serves as a thin film protective layer in each laminated body, or within the range of the layer structure. A layer structure in which some aspects are modified can be adopted. Further, in order to give a colored metallic luster to the layer structure, as described in claim 7, a metal thin film layer is formed on each base film layer via a colored layer that also serves as a pretreatment undercoat layer. It is possible to adopt a layer structure that has been formed or a layer structure that is partially modified within the range of the layer structure. Instead of forming the colored layer on each base film layer, it is also possible to apply the required dyeing to each base film layer itself.

When forming the metal thin film on the base film layer, in addition to the undercoating of the undercoat layer as described above, corona discharge or other plasma surface treatment is performed as a pretreatment, if necessary. Further, for forming the thin film protective layer, the colored layer and the like as the top coat layer, for example, a solution coating or a dry laminate is used, if necessary.

The metal thin film layer made of the discontinuous metal thin film has each nuclei growing when the metal atom is attached to the surface of the base film layer or the surface of the undercoat layer, which is an object to be formed, to grow nuclei in the metal thin film forming step. It is formed by stopping the thin film formation operation at the initial stage of nuclear growth, which is not yet in contact with each other and is not continuous, and this layer can flexibly follow and respond to the expansion and contraction of the base film layer without causing cracks. It is possible. The metal thin film layer made of the discontinuous metal thin film can be formed by various metal thin film forming methods, and is preferably formed by a known vacuum vapor deposition method, for example, as described in claim 8. As the metal thin film layer made of the discontinuous metal thin film, for example, as described in claim 9, a kind of metal selected from indium (In) and tin (Sn) is preferably used, and indium in particular. (In) gives a bright, whitish discontinuous metal thin film.

Conventionally, it has been known that the metal thin film layer made of the discontinuous metal thin film has a non-conductive and radioreflecting effect and also has a decorative effect of giving a deep luster (Patent Documents 3 and 4). ), The present invention has been completed by paying attention to the fact that this layer can flexibly follow and respond to the expansion and contraction of the base film layer without causing cracks, and can maintain excellent metallic luster and brilliance. Is.

As the base film layer , a polyurethane -based transparent stretchable plastic film is preferably used. The thin film protective layer, undercoat layer, colored layer and the like are transparent and stretchable from various resins such as alkyd resin, epoxy resin, polyurethane resin and acrylic resin and paints such as rack varnish, oil varnish and lacquer. Those having the above are appropriately selected.

The elastic metal glossy yarn can be used in the same manner as the conventional flat gold silver yarn, flat foil yarn, etc., for example, in the state of flat foil as it is, or as described in claim 10 , coreless winding. Used as a twisted yarn twisted by twisting with other elastic metal glossy yarns, elastic yarns, filament yarns, twisted yarns, etc. Will be done. A twisted yarn in which the stretchable metallic luster yarn is twisted by being combined with another stretchable yarn such as a stretchable metallic luster yarn or an elastic yarn is excellent in elasticity.

According to the first aspect of the present invention, it is possible to provide an elastic metallic luster yarn that does not have a stiff feeling and can maintain excellent metallic luster and brilliance even when expanded and contracted.

According to the second aspect of the present invention, it is possible to give a colored metallic luster to an elastic metallic luster yarn having a layer structure including one layer of a base film.

According to the invention of claim 3, since it has a layer structure in which a thin and fragile metal thin film layer or the like is sandwiched between two base film layers and protected, it is excellent in friction fastness, chemical resistance and the like. Elastic metallic luster yarn can be provided. According to the invention of claim 4, the layer structure described in the preceding claim can be easily realized. According to the invention of claim 5, it is possible to give a colored metallic luster to the elastic metallic luster yarn having the layer structure according to the preceding claim.

According to the invention of claim 6, the layer structure of the invention of claim 3 can be effectively realized. According to the invention of claim 7, it is possible to give a colored metallic luster to the stretchable metallic luster yarn having the layer structure according to the preceding claim.

According to the invention of claim 8, a metal thin film layer made of a discontinuous metal thin film can be formed by a vacuum vapor deposition method, which is a well-known metal thin film forming method. According to the invention of claim 9, it is possible to provide a stretchable metallic luster yarn using indium (In) or tin (Sn) as a metal suitable for forming a metal thin film layer made of a discontinuous metal thin film.

According to the invention of claim 10 , it is possible to correspond to a wide range of uses as a twisted yarn of various aspects using the stretchable metallic luster yarn.

FIG. 1 is a cross-sectional view showing a basic laminated structure contained in the elastic metallic luster yarn according to the present invention. 2 (A) and 2 (B) are cross-sectional views showing the layer configurations of the stretchable metallic luster yarn further provided with the base film layer according to the first embodiment of the present invention in each state without the colored layer and with the colored layer. Is. 3 (A) and 3 (B) show the stretchable metallic luster yarn in which the metal thin film layer is sandwiched between the two base film layers according to the second embodiment of the present invention, with or without the colored layer. It is sectional drawing which shows the layer structure of each state. 4 (A) and 4 (B) show, according to the third embodiment of the present invention, without a colored layer and coloring in another form of elastic metallic luster yarn in which a metal thin film layer is sandwiched between two base film layers. It is sectional drawing which shows the layer structure of each state with a layer.

As shown in FIG. 1, the stretchable metal glossy yarn MY according to the present invention includes a base film layer 1, a metal thin film layer 2 formed on the surface of the base film layer 1, and a thin film formed on the surface of the metal thin film layer 2. A laminated structure LS made of a protective layer 3 is included, the base film layer 1 is made of a polyurethane-based transparent elastic plastic film, the metal thin film layer 2 is made of a discontinuous metal thin film , and the thin film protective layer 3 is further formed. Is transparent and has elasticity including other layer constituent members other than the base film layer 1, the metal thin film layer 2, and the thin film protective layer 3 . In addition, for example, a colored layer, an adhesive layer, and the like belonging to other layer constituent members other than the above will appear in the following examples.

As shown in the following examples, the stretchable metallic luster yarn MY according to the present invention can have various layer configurations based on the above-mentioned basic laminated structure. In the following examples, dry laminating is used as necessary for forming various layer constituent members, but the layer constituent members in that case are shown in a state of only one layer in order to avoid complication of the drawing. , The illustration of the adhesive layer is omitted.

As shown in FIG. 2A, the stretchable metal glossy yarn MY1 according to the first embodiment of the present invention is formed on the base film layer 1 made of a polyurethane-based transparent stretchable plastic film and the surface of the base film layer 1. It is composed of a metal thin film layer 2 made of a discontinuous metal thin film and a transparent and stretchable thin film protective layer 3 formed on the surface of the metal thin film layer 2.

As shown in FIG. 2B, the stretchable metal glossy yarn MY2 obtained by coloring the stretchable metal glossy yarn MY1 includes a base film layer 1 made of a polyurethane-based transparent stretchable plastic film and the base film layer. 1 A transparent and stretchable first colored layer 4a formed on the outside, a metal thin film layer 2 composed of a discontinuous metal thin film formed on the surface of the base film layer 1, and a metal thin film layer 2 formed on the surface of the metal thin film layer 2. It is composed of a transparent and stretchable second colored layer 4b that also serves as a thin film protective layer.

When forming the metal thin film, if necessary, the base film layer 1 is subjected to undercoating of a pretreatment undercoat layer, corona discharge, or other plasma surface treatment as pretreatment. Further, a solution coating, a dry laminate, or the like is preferably used for forming the thin film protective layer 3, the first colored layer 4a, the second colored layer 4b that also serves as the thin film protective layer, and the like.

Instead of forming the first colored layer 4a on the outside of the base film layer 1, the discontinuous metal thin film is formed on the surface of the base film layer 1 via the first colored layer 4a which also serves as a pretreatment undercoat layer. It is also possible to form the metal thin film layer 2 to be formed. Further, instead of forming the first colored layer 4a on the outside or the inside of the base film layer 1, the base film layer 1 itself can be dyed as required.

As shown in FIG. 3A, the stretchable metal glossy yarn MY3 according to the second embodiment of the present invention has a first base film layer 1a made of a polyurethane-based transparent stretchable plastic film and the first base film layer. 1a A second base film layer 1b formed of a metal thin film layer 2 formed on the surface of a discontinuous metal thin film and a polyurethane-based transparent elastic plastic film formed on the surface of the metal thin film layer 2 which also serves as a thin film protective layer. It is composed of and.

As shown in FIG. 3B, the stretchable metal glossy yarn MY4 in which the stretchable metal glossy yarn MY3 is colored has a first base film layer 11a made of a polyurethane-based transparent stretchable plastic film and the first base film layer 11a. (I) A metal thin film layer 2 made of a discontinuous metal thin film formed on the surface of the base film layer 11a via a transparent and stretchable first colored layer 14a that also serves as a pretreatment undercoat layer, and the surface of the metal thin film layer 2. It is composed of a second base film layer 11b made of a polyurethane-based transparent stretchable plastic film formed via a transparent and stretchable second colored layer 14b that also serves as a thin film protective layer.

In the elastic metallic luster threads MY3 to 4 according to the present embodiment, the thin and fragile metal thin film layer 2, the first colored layer 14a and the second colored layer 14b are the first base film layers 1a and 11a and the second base film layer 1b. Since it has a layer structure that is sandwiched between 11b and protected, it has excellent frictional fastness and chemical resistance.

In forming the metal thin film, solution coating or the like is preferably used to form a transparent and stretchable first colored layer 14a that also serves as a pretreatment undercoat layer on the surface of the first base film layer 11a. Further, a solution coating, a dry laminate or the like is preferably used for forming the second colored layer 14b also serving as the thin film protective layer, and a dry laminate or the like is preferably used for forming the second base film layer 11b. ..

Instead of forming the first colored layer 14a on the first base film layer 11a and forming the second colored layer 14b on the surface of the metal thin film layer 2, the first base film layer 11a and the second base film layer 11b It is also possible to apply the required dyeing to itself.

As shown in FIG. 4A, the stretchable metal glossy yarn MY5 according to the third embodiment of the present invention is made of a discontinuous metal thin film on the surface of the first base film layer 1a made of a polyurethane-based transparent stretchable plastic film . A second metal thin film layer 2b made of a discontinuous metal thin film is formed on the surface of a first laminate formed of the first metal thin film layer 2a and a second base film layer 1b made of a polyurethane-based transparent elastic plastic film . The second laminated body is bonded to each other via the transparent and stretchable adhesive layer 5 with the first metal thin film layer 2a and the second metal thin film layer 2b inside, and the adhesive layer 5 is the first laminate. It is configured to also serve as a thin film protective layer in the body and the second laminated body.

As shown in FIG. 4B, the stretchable metal glossy yarn MY6 in which the stretchable metal glossy yarn MY5 is colored is pretreated on the surface of the first base film layer 11a made of a polyurethane-based transparent stretchable plastic film . A first laminate in which a first metal thin film layer 2a made of a discontinuous metal thin film is formed via a first colored layer 24a that also serves as an undercoat layer for use, and a second base made of a polyurethane-based transparent elastic plastic film . Each first metal thin film layer is a second laminate in which a second metal thin film layer 2b made of a discontinuous metal thin film is formed on the surface of the film layer 11b via a second colored layer 24b that also serves as a pretreatment undercoat layer. 2a and the second metal thin film layer 2b are placed inside, and they are bonded to each other via a transparent and elastic adhesive layer 5, and the adhesive layer 5 also serves as a thin film protective layer in the first laminated body and the second laminated body. It is composed of.

The stretchable metallic luster yarns MY5 to MY6 according to this embodiment also have a thin and fragile first metal thin film layer 2a and second metal thin film layer 2b, a first colored layer 24a, a second colored layer 24b, and the like as the first base film. Since it has a layer structure that is sandwiched and protected between the layers 1a and 11a and the second base film layers 1b and 11b, it has excellent frictional fastness and chemical resistance.

In forming the metal thin film, a solution coating or the like is applied to the formation of the first colored layer 24a and the second colored layer 24b which also serve as the undercoat layer for pretreatment on the first base film layer 11a and the second base film layer 11b. It is preferably used. Further, solution coating or the like is also preferably used for forming the adhesive layer 5 that also serves as the thin film protective layer in the first laminated body and the second laminated body.

Further, instead of forming the first colored layer 24a and the second colored layer 24b on the first base film layer 11a and the second base film layer 11b, the first base film layer 11a and the second base film layer 11b itself. It is also possible to apply the required dyeing to the film.

It should be noted that the present invention is not limited to the above-described embodiment, and many other wide-ranging embodiments based on various modifications, combinations, etc., within the scope described in the object of the present invention and the scope of claims. Is feasible.

MY Elastic Metal Luster Thread MY1-6 Elastic Metal Luster Thread LS Laminated Structure 1 Base Film Layer 1a First Base Film Layer 1b Second Base Film Layer (and Thin Film Protective Layer)
11a First base film layer 11b Second base film layer 2 Metal thin film layer made of discontinuous metal thin film 2a First metal thin film layer made of discontinuous metal thin film 2b Second metal thin film layer made of discontinuous metal thin film 3 Thin film protective layer 4a First colored layer 4b Second colored layer (and thin film protective layer)
14a First coloring layer (and undercoat for pretreatment)
14b Second colored layer (and thin film protective layer)
24a First coloring layer (and undercoat for pretreatment)
24b Second coloring layer (and undercoat for pretreatment)
5 Adhesive layer (and thin film protective layer)

Claims (10)

A metallic glossy yarn containing a laminated structure including a base film layer, a metal thin film layer formed on the surface of the base film layer, and a thin film protective layer formed on the surface of the metal thin film layer, wherein the base film layer is formed. Is made of a polyurethane-based transparent elastic plastic film, the metal thin film layer is made of a discontinuous metal thin film , and the thin film protective layer is a layer constituent member other than the base film layer, the metal thin film layer, and the thin film protective layer . Elastic metal glossy yarn, including, which is transparent and has elasticity. The stretchable metallic luster yarn according to claim 1 has a layer structure in which a first colored layer is formed on the outside of a base film layer and a second colored layer that also serves as a thin film protective layer is formed on the surface of the metal thin film layer. Elastic metallic luster thread. The stretchable metallic luster yarn according to claim 1, wherein the metallic thin film layer has a layer structure sandwiched between two base film layers. In the stretchable metallic luster yarn according to claim 3, a stretchable metal having a layer structure in which a second base film layer also serving as a thin film protective layer is formed on the surface of a metal thin film layer formed on the surface of the first base film layer. Glossy thread. In the stretchable metal glossy yarn according to claim 4, a metal thin film layer is formed on the surface of the first base film layer via a first colored layer that also serves as a pretreatment undercoat layer, and a thin film is formed on the surface of the metal thin film layer. An elastic metal glossy yarn having a layer structure in which a second base film layer is formed via a second colored layer that also serves as a protective layer. In the elastic metallic luster yarn according to claim 3, two sets of laminates in which a metal thin film layer is formed on the surface of a base film layer are bonded together via an adhesive layer with each metal thin film layer inside. An elastic metallic luster thread having a layer structure in which the adhesive layer also serves as a thin film protective layer in each laminated body. The stretchable metallic luster yarn according to claim 6, which has a layer structure in which a metallic thin film layer is formed on each base film layer via a colored layer that also serves as a pretreatment undercoat layer. The stretchable metallic luster yarn according to any one of claims 1 to 7, wherein a metal thin film layer made of a discontinuous metal thin film is formed by a vacuum vapor deposition method. In the elastic metallic luster yarn according to any one of claims 1 to 8, a kind of metal selected from indium (In) and tin (Sn) was used for forming a metal thin film layer composed of a discontinuous metal thin film. Elastic metallic luster thread. A twisted yarn obtained by twisting the stretchable metallic luster yarn according to any one of claims 1 to 9 by coreless winding or combined twisting with other yarns.

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