JP3007877U - Mirror member - Google Patents

Abstract

(57) [Summary] (Modified) [Purpose] Due to the high hardness peculiar to metal, the duck of the adhesive agent and the duck of the base material are minimized, and the surface duck and warpage caused by thermal contraction and thermal expansion after high temperature processing. Mirror surface member with excellent fire resistance, which is eliminated due to high thermal conductivity and heat resistance. [Structure] A mirror-finished member characterized in that a synthetic resin layer 1, a metal layer 2, and a synthetic resin layer 3 having specularity are sequentially laminated on the surface.

Description

[Detailed description of the device]

[0001]

[Industrial applications]

 INDUSTRIAL APPLICABILITY The present invention is for exterior materials such as outer walls of buildings, houses, gates and fences, interior materials such as bathrooms and toilets, system kitchens, vanities, furniture doors, tables, tiles and other interior materials, and automobiles. The present invention relates to interior panel members and the like, and is particularly a mirror surface member having excellent water resistance.

[0002]

[Prior art]

 Conventionally, a mirror surface member that has a mirror surface with an inorganic material or a wood material as a base material is laminated on a designed sheet base material, and then polyester and UV resin are repeatedly coated and polished several times. The coating method to be obtained, or a plate or sheet (film) having a mirror surface in advance, is used as a base material while paying attention to the coating surface property of the adhesive, the laminate temperature, etc. with a laminator, wrapping, postform, vacuum press, etc. There is a method of laminating. The coating method is a good method to obtain a sharp specularity, but the coating thickness is increased to obtain perfect specularity, and since painting and polishing are repeated several times, there are many steps and it is economical. Moreover, it is difficult to manage the color tone of the product due to the characteristics of the resin. Also, although the painting line is automated, this work is a 3K workplace that has recently become a problem, namely a (tight, dirty, dangerous) workplace.

Further, while the method of laminating a plate, sheet or film having a mirror surface property on a substrate has a simple process, even if a plate having a mirror property is used, an inorganic material is used at the time of processing such as lamination. In many cases, the specularity is lost due to the influence of wood material, adhesive material, and processing temperature. Therefore, in order to maintain specularity, the plate is preliminarily polished, the leveling property of the adhesive is improved, the coating is improved, and the processing temperature is kept to a minimum. Even if it is processed with the meticulous processing method as described above, the coating leveling property of the adhesive depends on the surface condition of the base material (for example, the surface condition of the MDF, the calcareous plate, etc. is subtly different and the solvent etc. The difference in the penetration of the adhesive will result in unevenness of the adhesive.) Due to subtle variations in the thickness of the adhesive and differences in the expansion and contraction rates after processing, it is possible to maintain perfect mirror surface. This is not possible, and ultimately there is no choice but to take a method of increasing the plate thickness, but if the plate thickness is increased, the workability will deteriorate.

In summary, in the past, coating and polishing were repeated to give a mirror surface property, and the coating film thickness was increased, but the number of processes was large and the economy was low, and the work environment was poor. There was a problem above. Lamination of a plate, sheet or film with a mirror surface and base material is affected by subtle adhesive duck and base material duck, and in order to obtain a mirror surface member, the plate, etc. must be thickened, and the laminate Only a member with poor workability and economical efficiency is obtained. When only the resin layer is formed on the substrate, the thickness is limited in order to impart fire resistance, and thus the specularity is also limited.

[0005]

[Problems to be solved by the device]

 The present invention solves such a problem by providing a mirror surface member having a rough surface, which is made of an inorganic material or a wood material and has a mirror surface.

[0006]

[Means for Solving the Problems]

 The present invention is one in which a synthetic resin layer having a mirror surface, a metal layer, and a synthetic resin layer are sequentially laminated on the surface. Due to the high hardness peculiar to metal, the duck of the adhesive and the duck of the base material are minimized It is a mirror-finished member with excellent fire resistance in which surface duck and warpage due to thermal contraction and thermal expansion are eliminated due to high thermal conductivity and heat resistance.

The present invention will be described below with reference to FIGS. 1 and 2. FIG. 1 shows an embodiment of the present invention, which comprises a synthetic resin layer 1, a metal layer 2, and a synthetic resin layer 3 in order from the top. FIG. 2 shows another embodiment of the present invention, which comprises a synthetic resin layer 1, a metal layer 2, a synthetic resin layer 3, and a base material layer 4. The synthetic resin used in the synthetic resin layers 1 and 3 of the present invention may be thermoplastic or thermosetting, but the thermoplastic resin is preferably vinyl chloride resin, olefin resin such as polypropylene or polyethylene, or polyester resin. . In particular, vinyl chloride resin is desirable from the viewpoint of laminating processability and fire resistance. Each of the synthetic resin layers 1 and 3 may be a single layer or a laminate of two or more layers, and if it is desired to improve the scratch resistance of the surface, a UV resin may be previously applied and used. The thermosetting resin used in the present invention is preferably a melamine resin, a phenol resin, a diallyl phthalate resin or the like. Considering surface physical properties such as pencil hardness and scratch resistance, a thermosetting resin layer is formed on the surface layer. It is desirable to use it, but a type in which a thermosetting resin is impregnated in a printing paper or the like is not preferable because it lacks specularity due to the formation of the paper.

Further, the metal used for the metal layer 2 includes iron, aluminum, copper, etc., and is preferably aluminum from the viewpoint of fire resistance and processability, and the thickness thereof is fire resistance and suitability for secondary processing such as lamination and vacuum pressing. Considering this, 0.05 mm to 0.3 mm is desirable. When the thickness is less than 0.05 mm, there is a drawback that fine foreign matter and duck of adhesive cannot be erased during lamination. On the other hand, when it is 0.3 mm or more, there is a drawback that the suitability for curved surface processing is deteriorated. Further, aluminum is preferably 1200 of pure aluminum which retains the elongation of 15 to 30%, 3003 and 3004 of aluminum-manganese and more preferably O (o) agent. The thickness of the upper synthetic resin layer is preferably 0.1 to 0.3 mm, and in order to increase the specularity, the synthetic resin layer having a thickness of 0.2 mm or more can maintain high designability. Further, the inorganic material of the base material layer 4 made of an inorganic material or a wood material is preferably a slate plate, a tongue plate, a gypsum board, and the like, and the wood material is preferably MDF, particle board, plywood or the like. Inorganic materials are used when fire resistance is required in bathrooms, and wooden materials are used for interior doors and tables.

The mirror surface member of the present invention uses a metal layer between the synthetic resin layers so that it is not affected by the duck of the material and the adhesive, maintains the mirror surface property, and has heat resistance and fire resistance. A mirror surface member with excellent performance can be provided. Therefore, the mirror surface property of the adhesive coating is not always required, and the allowable range is widened and the coating management becomes easy. Therefore, specularity can be obtained without a step of finishing the substrate surface by polishing or the like.

[0010]

【Example】

An embodiment will be described below with reference to FIGS. (Example 1) The first layer is a hard vinyl chloride resin layer (thickness 0.1 mm), the second layer is a printing sheet (made of vinyl chloride, the plasticizer amount is 16%), and the third layer is an aluminum foil (thickness 0.15). mm), the fourth layer is a hard vinyl chloride resin layer (thickness 0.1 mm), and the fifth layer is a slate plate, the first and second layers are preliminarily heat laminated, and the laminated layer is a synthetic resin. Layer 1 is used as the third layer of aluminum foil, metal layer 2 is used, and 1 and 2 are applied with an adhesive [made by Takeda Pharmaceutical Co., Ltd., polyurethane-based A-310 / hardening agent A-3 = 12/1] coating amount 25 m ² / g, lamination Dry lamination was performed at a temperature of 60 ° C., and further dry lamination was performed on the synthetic resin layer 1, the metal layer 2, and the vinyl chloride sheet of the fourth synthetic resin layer 3 to obtain the mirror surface member 5. Was given. An adhesive is applied by spraying the back surface of the mirror member 5, thread as the base material layer 4 - DOO plate (5 mm) and laminated multistage press (temperature 160 ° C., a pressure 30kg / cm ²⁾ stainless mirror plates in (aka gloss plate ) To obtain another mirror surface member 6 of the present invention.

Example 2 The mirror-finished member 5 obtained in the same manner as in Example 1 was prepared by mirror-working by pressing (temperature 160 ° C., pressure 30 kg / cm ² ). After the adhesive was applied to the back surface of the mirror surface member 5 with a doctor knife, the base material layer 4 was laminated with a wood material at 50 ° C. to obtain another mirror surface member 6 of the present invention.

COMPARATIVE EXAMPLE 1 A vinyl chloride resin layer having a thickness of 0.4 mm as the first layer, and the adhesive layer shown in the example as the second layer on the back surface of the printing sheet having a thickness of 0.1 mm (vinyl chloride). A plasticizer amount of 16%) and a commercially available slate plate having a thickness of 5 mm were laminated as the third layer, and these were laminated and prepared under the pressing conditions shown in the examples. (Comparative Example 2) A vinyl chloride resin layer having a thickness of 0.4 mm and a printing sheet having a thickness of 0.1 mm were mirror-finished by a multi-stage press to prepare a mirror-finish plate. The back surface was coated with the adhesive shown in Example 1 with a doctor knife, and then laminated as shown in Example 2 for preparation. The following railway vehicle flammability tests were carried out on the respective members obtained in Examples 1 and 2 and Comparative Examples 1 and 2, and the results shown in Table 1 were obtained. [Railcar flammability test] Hold a B5 size sample at an angle of 45 ° so that the center of the bottom of the fuel container is 25.4 mm (1 inch) vertically below the center of the bottom surface of the sample. It was placed on a table with a low thermal conductivity such as cork, 0.5 cc of pure ethyl alcohol was put in it to ignite it, and it was left to stand until the fuel burned, and the nonflammability was evaluated.

[0013]

[Table 1]

[0014]

[Effect of device]

 The present invention provides a mirror surface member based on an inorganic material or a wood material, which has excellent mirror surface property and fire resistance, that is, the high hardness peculiar to metal minimizes the adhesive material and the material material. In addition, it is possible to obtain a mirror surface member which has high heat conductivity and heat resistance, which prevents surface shrinkage and warpage caused by thermal contraction and thermal expansion due to a high processing temperature, and which has excellent fire resistance and high mirror surface property.

[Brief description of drawings]

FIG. 1 is a vertical sectional sketch of a mirror surface member of the present invention.

FIG. 2 is a vertical sectional view of another mirror member of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Synthetic resin layer, 2 Metal layer, 3 Synthetic resin layer, 4 Base material layer which consists of an inorganic material or a wood material, 5 The mirror surface member of this invention, 6 The other mirror surface member of this invention.

Claims (2)

[Scope of utility model registration request] 1. A mirror surface member comprising a synthetic resin layer having a mirror surface, a metal layer, and a synthetic resin layer sequentially laminated on the surface. 2. A mirror surface member comprising a synthetic resin layer having a mirror surface, a metal layer, a synthetic resin layer, and a base material layer made of an inorganic material or a wood material, which are sequentially laminated on the surface.