JP3105972U - Mirror-like decorative body and transfer sheet for making decorative body - Google Patents

Abstract

An object of the present invention is to provide a mirror-like decorative body and a transfer sheet which are stretchable and rich in volume.
A pattern layer having a smooth surface containing a mirror ink, a gray backup layer containing a polyurethane resin and an isocyanate and being thicker than the pattern layer, and containing a polyurethane resin and an isocyanate, and containing a polyurethane resin and an isocyanate. It has an intermediate layer 7 that is thicker and equal to or thicker than the backup layer, and an adhesive layer 8 containing a thermoplastic resin that has entered the fabric by heating and pressing.
[Selection diagram] Fig. 1

Description

  The present invention relates to a mirror-like decorative body having elasticity and richness in volume, and to a transfer sheet for producing a mirror-like decorative body.

  When the material to be transferred is a material that does not have elasticity, such as plastic, glass, paper, and metal, a metallic gloss layer can be provided by a thermal transfer method in order to enhance aesthetic appearance. For example, an aluminum deposition layer is provided between the design layer and the adhesive layer via an anchor layer. Further, by partially providing a water-soluble primer layer between the aluminum vapor-deposited layer and the anchor layer, and removing the primer layer with running water after vapor deposition, aluminum having a desired flat shape and metallic luster in the transfer layer is obtained. A vapor deposition pattern can be formed. In the method for forming a metallic gloss layer by the aluminum vapor deposition method, the production cost is very high due to an increase in material cost and die price.

  In order to solve the problem of high cost, for example, in JP-A-2002-192896, a high-brightness coating agent is applied or printed on one side of a base film of a thermal transfer sheet, and a mirror-like brightness equivalent to that of an aluminum vapor-deposited film is obtained. To form a metallic luster layer region having This high-brightness coating agent is composed of a metal thin film strip, a binder resin, an additive, a curing agent, and a solvent. In particular, when a metal thin film strip is used, a high-luminance mirror-like metallic luster can be obtained. Japanese Patent Application Laid-Open No. 2003-89277 discloses a thermal transfer sheet in which a release coloring layer and a metal thin film layer are sequentially provided on the surface of a base film provided with a heat-resistant layer, and the metal thin film layer is a scale-like aluminum pigment, a non-leafing type aluminum pigment. And at least two of pearl pigments. High opacity and specular reflection properties of flaky aluminum pigments, high irregular reflection properties of non-leafing type aluminum pigments, regular multiple reflection of pearl pigments, and other excellent optical properties such as light interference make it brighter. A metallic color with high brightness and excellent hiding power of the underlying color can be reproduced.

JP 2002-192896 A JP 2003-89277 A

  The mirror-like metallic glossy layer has essentially no elasticity like a hot stamp, and therefore cannot be used for a material having elasticity such as cloth or leather due to peeling. This metallic gloss layer tends to have a high transfer failure rate, and the decorative printing by aluminum evaporation has a poor volume feeling and it is difficult to express finely. Further, if the material to be transferred has some elasticity, there is a problem in that the metallic glossy layer lacks durability and the defective transfer rate is further increased.

  SUMMARY OF THE INVENTION The present invention has been proposed to solve the above-mentioned problems relating to the conventional mirror-like metallic glossy layer, and is a mirror-like decorative body capable of expressing a clear and fine expression on a flexible material having fine irregularities. It is intended to provide. Another object of the present invention is to provide a transfer sheet for producing a mirror-like decorative body having elasticity and versatility.

  The mirror-shaped decorative body according to the present invention is composed of characters, figures, symbols, patterns, and the like that are permanently bonded to a flexible material. The decorative body of the present invention includes a pattern layer having a smooth surface containing mirror ink, a gray backup layer thicker than the pattern layer, an intermediate layer thicker than the pattern layer and equal to or thicker than the backup layer, and heating. An adhesive layer containing a thermoplastic resin that has entered the fabric by pressing. The backup layer and the intermediate layer contain a polyurethane resin and an isocyanate.

  The decorative body of the present invention is a fine aluminum foil piece obtained by a vacuum deposition method, a pattern layer having a smooth surface containing a polyurethane resin and isocyanate, and a backup layer which is thicker than the pattern layer and has a slightly smaller planar shape, An intermediate layer which is thicker than the pattern layer and has the same or slightly larger planar shape and is equal to or thicker than the backup layer, and an adhesive layer containing a thermoplastic polyurethane resin which has entered the fabric by heating and pressing. May be provided. Preferably, the design layer has a thickness of 1 to 2 μm, and is provided twice by screen printing.

  In addition, the thermal transfer sheet for creating a decorative body according to the present invention has a pattern layer containing a mirror ink, a gray backing layer thicker than the pattern layer, and a An intermediate layer thicker than the layer and equal to or thicker than the backup layer, and a relatively thick adhesive layer are sequentially provided. In this thermal transfer sheet, it is preferable that the pattern layer is formed by printing twice by a screen printing method, and further, a backup layer, an intermediate layer, and an adhesive layer are sequentially formed.

  The thermal transfer sheet of the present invention contains a fine aluminum foil piece obtained by a vacuum evaporation method, a pattern layer containing a polyurethane resin and an isocyanate, and a polyurethane resin and an isocyanate on a smooth base film having a high release property. And a backup layer thicker and slightly smaller in planar shape than the design layer, containing a polyurethane-based resin and isocyanate, and being thicker than the design layer and having a planar shape equal or slightly larger and equal to the backup layer. Alternatively, it is also possible to sequentially provide a thicker intermediate layer and a relatively thick adhesive layer containing a thermoplastic polyurethane resin.

  The present invention will be described with reference to the drawings. A thermal transfer sheet 1 according to the present invention has a basic layer configuration as shown in FIG. 1, and has a mirror-like design layer 3 on a smooth base film 2 having high release properties. A backup layer 5 which is thicker than the design layer and has a slightly smaller planar shape, an intermediate layer 7 which is thicker than the design layer and has the same or slightly larger planar shape, and an adhesive layer 8 made of a thermoplastic resin. Provide sequentially. In general, the pattern layer 3, the backup layer 5, the intermediate layer 7, and the adhesive layer 8 are formed by screen printing, and the adhesive layer 8 may be sprayed with a hot melt resin.

  In the thermal transfer sheet 1, the base film 2 is generally a plastic film, and its form is a sheet or a roll. Specifically, the base film 2 is a single film such as polyethylene terephthalate, polyester, acrylic, polycarbonate, PVC, polyethylene, polypropylene, or polyamide, or a composite film thereof, and has a thickness of 50 to 125 μm, more preferably The thickness is 75 μm or 100 μm. The surface of the base film 2 is subjected to various surface treatments and primers for imparting smoothness, for example, non-silicon processing. However, a protective layer is not usually provided because the surface smoothness of the design layer 3 is easily damaged. .

  The mirror-like design layer 3 is a plan design of characters, figures, symbols, patterns, pictorial displays or a combination thereof. The design layer 3 is added with a dedicated transparent resin, a solvent, a defoaming agent, and a crosslinking agent such as isocyanate in order to maintain the printing stability, the fastness of the mirror ink, and the hiding property of the mirror ink. It is preferable that the design layer 3 is provided with a printing ink including a mirror ink twice by high mesh screen printing in order to enhance a mirror effect. The thickness of the design layer 3 is 1 to 2 μm, and its volume is complemented by the backup layer 5.

  The mirror ink used in the present invention is an ink exhibiting gloss and color tone such as a predetermined chrome plating on the opposite surface of the base film 2. In this mirror ink, according to the electron micrograph, the aluminum foil piece is almost irregular in shape similar to a square or an ellipse, and its average particle size represents the size of the aluminum foil piece in one direction, so that the adhesiveness is reduced. In order to obtain the luster and color like chrome plating without causing, it is necessary to relatively increase the amount of the aluminum foil pieces, and thus make the aluminum foil pieces thinner. When the aluminum foil obtained by the vapor deposition method is pulverized into aluminum foil pieces, the thickness of the aluminum foil pieces is relatively increased at a thickness of 0.1 μm or less, which is completely different from the conventional aluminum foil pieces. Get a good printing surface. In particular, the aluminum foil piece preferably has an average particle size of 5 to 15 μm and an aspect ratio (particle size / thickness ratio) of 200 to 1000.

  When 10 to 60 parts by weight of a binder resin is added to 100 parts by weight of an aluminum foil piece, the mirror ink has a desired gloss and color tone like chrome plating, and also has high adhesiveness. This binder resin is selected in consideration of the adhesion and workability to the material to be transferred, and as a binder resin that does not impair the appearance of a predetermined gloss and color tone, a common polyurethane resin, vinyl resin, acrylic copolymer is used. And a polyester-based resin. Usually, a crosslinking agent such as isocyanate may be added, and if necessary, an amino resin or the like may be used as the crosslinking agent. Preferably, the binder resin comprises a polyurethane resin and an isocyanate, and the polyurethane resin is heat-crosslinkable or crosslinkable with time. Polyurethane-based resins are stretched as a binder resin, are excellent in abrasion resistance, rebound resilience and compressive fatigue strength, and are less likely to delaminate or crack when used in flexible materials such as textiles.

  If the solvent to be added to the mirror ink does not cause a solvent shock to the aluminum foil piece or the binder resin or does not damage the base film 2, the composition and the amount of the solvent may be selected in consideration of appropriate printing to be applied. . Representative solvents include esters, ketones, ethers, aliphatic hydrocarbons, aromatic hydrocarbons, and the like. Since the viscosity of the suspension containing the aluminum foil pieces is substantially proportional to the aspect ratio, the amount of the solvent in the mirror ink formulation is affected by the aspect ratio of the aluminum foil pieces. If necessary, a transparent resin may be added, and in addition to a defoaming agent for surface adjustment, a leveling agent, an anti-blocking agent and the like may be added.

  The backup layer 5 is provided to prevent scratches and pinholes on the design layer 3 and to improve gloss and durability, and is generally applied by screen printing. Since the backup layer 5 also serves as camouflage or camouflage of the gloss and scratches of the design layer 3, it is usually preferable to set the gray color by adding titanium oxide and carbon black, and to use the camouflage when it is completely white and black. The effect is considerably reduced. The thickness of the backup layer 5 is usually 5 to 10 μm. The backup layer gives the transferred design layer 3 a sense of volume, and a mirror surface which is hardly affected by the texture of the material to be transferred can be obtained.

  The intermediate layer 7 has an affinity with the resin of the design layer 3 or the backup layer 5, reinforces the design layer 3, and supplements its elasticity and adhesive strength. The intermediate layer 7 desirably has a planar shape that is the same as or slightly larger than the design layer 3, and may have a slightly smaller planar shape in some cases. The intermediate layer 7 often contains a polyurethane resin or a polyamide resin in order to have a high affinity with the resin of the design layer 3 and the backup layer. The thickness of the intermediate layer 7 is usually 10 to 30 μm.

  The adhesive layer 8 has a planar shape slightly larger than the intermediate layer 7 and is basically selected from a hot melt resin suitable for the material of the material to be transferred, and the resin is preferably the same as that of the intermediate layer 7. The adhesive layer 8 usually contains a thermoplastic polyurethane resin if it is for a flexible textile product. In particular, for a stretchable fiber product such as a knit product, the adhesive layer 8 is mainly made of a thermoplastic polyurethane resin, and preferably contains a thermoplastic polyamide resin for gripping the fabric. Generally, the thickness of the adhesive layer 8 is 10 to 200 μm.

  The mirror-shaped decorative body according to the present invention is securely adhered to a flexible material having fine irregularities such as cloth and leather, and has a low transfer failure rate, and has a predetermined washing resistance and abrasion resistance. It is at a practical level that satisfies the character. The decorative body of the present invention has a clear and fine expression and is rich in volume. By using the decorative body of the present invention, a sharp design having metallic luster can be expressed for fabrics and leathers, which greatly contributes to the expansion of uses of textile products.

  The thermal transfer sheet of the present invention can be easily transferred to a flexible material to be transferred by heating and pressing, and the obtained decorative body can easily cope with expansion and contraction of the material to be transferred. Cracks are less likely to occur. In the thermal transfer sheet of the present invention, by providing a backup layer, an intermediate layer, and an adhesive layer after a mirror-like design layer that is a smooth surface, not only textiles such as blousons, training wear, T-shirts and swimwear, but also bags. It can also be applied to sports and sports shoes.

  Next, the present invention will be described based on embodiments, but the present invention is not limited to the embodiments.

  In order to manufacture the thermal transfer sheet 1 shown in FIG. 1, a 100 μm-thick polyester film (made by Unitika) is used as the base film 2. A smooth release layer (not shown) is formed on the surface of the base film 2 by moisture-curing non-silicon resin processing.

  For the design layer 3, a mirror ink of a setting color: 750 MR silver (trade name: Mirror A series, manufactured by Mino Group) is used. The binder resin is a polyurethane resin, and 30 parts by weight is added to 100 parts by weight of the aluminum foil piece. In order to improve the printing stability, the retention of fastness and the hiding power of the mirror ink, a special transparent resin, a solvent, an antifoaming agent and 5 parts by weight of isocyanate are added and appropriately diluted.

  The pattern layer 3 is directly printed twice on the base film 2 by a high mesh screen plate so as to have a desired planar shape, and the thickness thereof is 1.5 μm. After screen printing, dry at 40 ° C. for 5 minutes.

  The gray backup layer 5 has a slightly smaller planar shape than the design layer 3 and is stacked on the design layer. The gray backup layer 5 is composed of 30% by weight of a polyurethane resin solution, 10% by weight of isocyanate, 50% by weight of titanium oxide pigment and 10% by weight of carbon black fine powder, and is laminated by a 180-mesh screen plate. When dried at 40 ° C. for 20 minutes after screen printing, the thickness of the backup layer 5 is 8 μm.

  The intermediate layer 7 has a planar shape equal to or slightly larger than the design layer 3 and is stacked on the backup layer 5. The intermediate layer 7 is composed of 67% by weight of a polyurethane-based resin solution having a solid content of 25%, 25% by weight of a hydrocarbon-based organic solvent, and 8% by weight of isocyanate. Laminate. After screen printing and drying at 40 ° C. for 20 minutes, the thickness of the intermediate layer 7 is 20 μm.

  The adhesive layer 8 is formed by enlarging the planar shape by 0.4 mm from the entire periphery of the character of the symbol layer 3 and is laminated on the intermediate layer 7. The adhesive layer 8 is composed of 40% by weight of a polyurethane resin and 60% by weight of a thermoplastic polyamide resin. The paste-like thermoplastic ink is printed and laminated two or three times using a 70-mesh screen plate. After drying at 40 ° C. for 20 minutes after screen printing, the thickness of the adhesive layer 8 is 80 μm.

  The obtained thermal transfer sheet 1 is arranged at a desired position in a textile such as sportswear 10 (FIG. 3). The heat transfer sheet 1 is turned over, and the design layer 3 is transferred to the upper front of the sportswear 10 as shown in FIG. The transfer conditions are set at a temperature of 160 ° C., a transfer pressure of 98 kPa, and a transfer time of 10 seconds in a thermal transfer machine (trade name: T-80 Transtainer, manufactured by Japan Polymer Co., Ltd.). As a result of the heat transfer, the mirror-like decorative body 12 including the transfer design layer 3 is firmly bonded to a desired place of the sportswear 10 via the bonding layer 8 to be fused.

  The sportswear 10 on which the decorative body 12 such as mirror-like characters or figures has been transferred is repeatedly washed 10 times by a household electric washing machine in a method according to JIS L0217103. As a result of this washing, the decorative body 12 does not suffer from abrasion such as abrasion, cracking or falling off, so that it is durable, and the comfort of the sportswear 10 does not decrease. When the mirror-like decorative body 12 is transferred to the sportswear 10, fine expression can be made with a beautiful mirror-like body, so that the design of the wear can be changed unconventionally and contribute to sales promotion.

  In order to manufacture the thermal transfer sheet 1, the same base film 2 as in Example 1 is used. A release layer is formed on the surface of the base film 2 having a thickness of 75 μm by performing non-silicon resin processing in the same manner as in the first embodiment.

  The design layer 3 is the same as in the first embodiment, but is printed twice with a high mesh screen plate, and has a thickness of 1.0 μm. The backup layer 5 and the intermediate layer 7 are formed by processing in the same manner as in the first embodiment. The adhesive layer 8 is formed so as to be 0.4 mm larger than the entire periphery of the figure of the design layer 3. The adhesive layer 8 is printed twice with the same screen plate, and has a thickness of 60 μm.

  The obtained thermal transfer sheet 1 is arranged at a desired position in a fiber product such as a T-shirt (not shown). The heat transfer sheet 1 is turned over, and the design layer 3 is transferred to the upper part of the back of the T-shirt. As a result of this heat transfer, the transfer design layer 3 is firmly adhered to the back of the T-shirt. The T-shirt to which the pattern layer 3 has been transferred is repeatedly washed 10 times by the electric washing machine, and as a result, the decorative body 12 does not suffer from abrasion such as abrasion, cracking or falling off.

  In order to manufacture the thermal transfer sheet 1, the same base film 2 as in Example 1 is used. Non-silicon resin processing is performed on the surface of the base film 2 as in the first embodiment, and the design layer 3 and the backup layer 5 are further laminated as in the first embodiment.

  Further, the intermediate layer 7 is laminated on the backup layer 5. The middle layer 7 is composed of 85% by weight of a thermoplastic polyurethane resin solution having a solid content of 18%, 3% by weight of a polyamide resin, 5% by weight of a polyol, and 7% by weight of an isocyanate. The intermediate layer 7 is formed in the same planar shape as the symbol layer 3.

  The adhesive layer 8 similar to that of the first embodiment is formed by printing using a 70-mesh screen plate and enlarging the periphery of the entire graphic of the design layer 3 by 0.4 mm. The adhesive layer 8 is printed twice with the same screen plate, and has a thickness of 100 μm.

  In order to manufacture the thermal transfer sheet 1, the same base film 2 as in Example 1 is used. Non-silicon resin processing is performed on the surface of the base film 2 as in the first embodiment, and the design layer 3 is further laminated as in the first embodiment.

  Further, a light gray backup layer 5 is laminated on the design layer 3. The light gray backup layer 5 is composed of 11% by weight of titanium oxide pigment, 1% by weight of carbon black fine powder, 60% by weight of a polyurethane resin solution having a solid content of 25%, 23% by weight of a hydrocarbon type organic solvent, and 5% by weight of isocyanate. Then, a 10 μm-thick layer is laminated on the screen plate. The light gray backup layer 5 has a planar shape slightly smaller than the design layer 3.

  Further, the intermediate layer 7 is laminated on the design layer 3. The middle layer 7 is composed of 85% by weight of a thermoplastic polyurethane resin solution having a solid content of 18%, 3% by weight of a polyamide resin, 5% by weight of a polyol, and 7% by weight of an isocyanate. The intermediate layer 7 has a planar shape slightly larger than the design layer 3.

  The adhesive layer 8 similar to that in the first embodiment is formed by printing with a 70-mesh screen plate and enlarging the pattern layer 3 by 0.4 mm from the entire periphery of the character. The adhesive layer 8 is printed twice with the same screen plate, and has a thickness of 100 μm.

FIG. 3 is an enlarged cross-sectional view schematically illustrating the transfer sheet according to the present invention. FIG. 3 is an enlarged sectional view schematically showing a decorative body adhered to a material to be transferred. It is a front view which shows the sportswear which is a transferred material.

Explanation of reference numerals

DESCRIPTION OF SYMBOLS 1 Thermal transfer sheet 2 Base film 3 Design layer 5 Backup layer 7 Intermediate layer 8 Adhesive layer 12 Mirror decoration

Claims (6)

  A mirror-like decorative body composed of characters, figures, symbols, patterns, etc. permanently adhered on a flexible material, containing a pattern layer having a smooth surface containing mirror ink, and a polyurethane resin and isocyanate A gray backup layer thicker than the design layer, an intermediate layer containing a polyurethane-based resin and isocyanate, and being thicker than the design layer and equal to or thicker than the backup layer, and heated and pressed into the fabric. A mirror-like decorative body having an adhesive layer containing a thermoplastic resin that has entered the interior.   A mirror-like decorative body composed of characters, figures, symbols, patterns, etc. that are permanently bonded on a flexible material, and made of fine aluminum foil pieces, polyurethane-based resin and isocyanate obtained by a vacuum evaporation method. A pattern layer having a smooth surface, containing a polyurethane-based resin and isocyanate, a backup layer thicker than the pattern layer and having a slightly smaller planar shape, containing a polyurethane-based resin and isocyanate, and being thicker than the pattern layer; A mirror-like decorative body having an intermediate layer having an equal or slightly larger planar shape and equal to or thicker than a backup layer, and an adhesive layer containing a thermoplastic polyurethane resin that has entered the fabric by heating and pressing. .   3. The decorative body according to claim 1, wherein the design layer has a thickness of 1 to 2 [mu] m and is provided twice by screen printing.   On a smooth base film having a high release property, a pattern layer containing a mirror ink, a polyurethane-based resin and isocyanate are contained, a gray backup layer thicker than the pattern layer, and a polyurethane-based resin and isocyanate are contained. A thermal transfer sheet for making a decorative body, which is provided with an intermediate layer which is thicker than the pattern layer and is equal to or thicker than the backup layer, and a relatively thick adhesive layer containing a thermoplastic resin.   On a smooth base film having high mold release properties, a fine aluminum foil piece obtained by a vacuum evaporation method, a pattern layer containing a polyurethane resin and an isocyanate, containing a polyurethane resin and an isocyanate, and more than the pattern layer A backup layer having a thick and slightly smaller planar shape, and an intermediate layer containing a polyurethane resin and an isocyanate, and having a thickness equal to or slightly larger than the design layer and equal to or slightly larger than the backup layer and equal to or greater than the backup layer, A thermal transfer sheet for making a decorative body, which is provided with a relatively thick adhesive layer containing a thermoplastic polyurethane resin in order. The thermal transfer sheet according to claim 4 or 5, wherein the pattern layer is formed twice by screen printing, and the backup layer, the intermediate layer and the adhesive layer are sequentially formed.

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