JPH0321526Y2 - - Google Patents

Description

[Detailed description of the invention] [Industrial application field] This invention is applicable to biotechnology handling rooms, hospitals,
The present invention relates to an interior board suitable as an interior material for rooms that require a high level of hygiene, such as operating rooms, sterile rooms, and food manufacturing and processing rooms.

[Conventional technology]

Conventionally, floorboards and wallboards made of synthetic resins such as linoleum and vinyl chloride resin have been proposed and installed on the floors and walls of rooms that need to be kept clean, such as hospitals, operating rooms, and food processing rooms. However, conventional linoleum, synthetic resin boards, wall panels, etc. do not have sufficient weather resistance, water resistance, stain resistance, corrosion resistance, chemical resistance, etc., so they are susceptible to bacteria, sewage, and dirt. If it gets on the ceiling, it is unsanitary if you do not wipe it off as soon as possible.
There were problems such as stains forming on walls, floors, etc., and the product not returning after long periods of use. In addition, conventional products have poor chemical resistance, especially disinfectant resistance, insecticide resistance, and weather resistance, so they cannot perform satisfactory disinfection and insecticidal operations, and they deteriorate when used for a long time. Microscopic cracks and unevenness are formed on the surface, and these cracks and unevenness attract bacteria and
There is also the problem that dust gets in and dirt cannot be removed. In order to prevent these drawbacks, surface protection materials are pasted on-site or painted, but the workability is poor and wrinkles, blisters, and deterioration occur on the surface, so pasting is often not done. This creates a problem of having to be replaced or repainted.

[Problem that the invention attempts to solve]

This invention is intended to solve the above-mentioned conventional problems, and has a fluororesin film on the outermost surface that has excellent weather resistance, stain resistance, chemical resistance, corrosion resistance, and excellent wipeability. To provide an interior board which is easy to apply and whose surface does not blister, wrinkle or peel after installation.

[Means for solving problems]

In the present invention, interior boards are made by applying a decorative coating to the surface of a non-flammable or flame-retardant base material, and then applying a decorative coating to the surface of the decorative coating.
A sub-base material selected from synthetic paper or synthetic resin film and a product laminated with aluminum foil, a printed or colored layer, and then an ultraviolet ray (hereinafter referred to as
(abbreviated as UV) is characterized by successive layers of transparent fluororesin films containing absorbers.

In the present invention, the auxiliary base material and the fluororesin film are laminated on the decoratively coated base material using a solvent-free adhesive. More specifically, the sub-base material may be laminated onto the decorative painted surface of the base material using a solvent-free adhesive such as an epoxy resin or a water-based adhesive. in this way,
By bonding with a non-organic solvent-based adhesive, the surface material will not swell up due to vaporization and expansion of the solvent and moisture even if some temperature is applied during or after the construction of the interior board of the present invention.

Non-combustible or flame-retardant base materials used in this invention include ceramic products such as calcium silicate boards, slate boards, gypsum boards, and asbestos cement boards, metal plates, and flame-retardant plywood. Can be used. These can be used alone or in combination with other boards, and base materials and sub-base materials should be selected that are required according to the purpose and facility and comply with fire prevention and other various laws and regulations.

A decorative coating is applied onto a substrate to smooth the surface of the substrate and improve adhesion. As the coating agent, resins such as epoxy, urethane, and acrylic resins are used. By further polishing the painted surface after application, it is possible to make the surface flatter and improve adhesion to other members.

The fluororesin film may be a resin film containing a fluororesin, but is preferably made of a fluororesin alone.

Examples of fluororesins include polytetrafluoroethylene (PTFE) and tetrafluoroethylene.
Perfluoroalkyl vinyl ether copolymer (PFA), tetrafluoroethylene-hexafluoropropylene copolymer (FEP), polychlorotrifluoroethylene (PCTFE), tetrafluoroethylene-ethylene copolymer (ETFE), chlorotrifluoroethylene - Examples include ethylene copolymer (ECTFE), polyvinylidene fluoride (PVDF), and polyvinyl fluoride (PVF).

In addition, base resins containing these fluororesins include polysulfone, alkyd resin, amino resin, polyester resin, phenol resin, allyl resin, polyallyl sulfone, urethane resin, polybenzimidazole, and polyamideimide, which have their own characteristics. , polyphenylene sulfide, polyphenylene, polyphenylene oxide, oxybenzoyl ester, polyether sulfone, polyimide, epoxy resin, polyethylene, polypropylene, ionomer, acrylic resin, nylon, polyvinyl chloride, etc. can be used.

The content of the fluororesin is 10% (by weight) or more within the range where the desired characteristics can be obtained, and it is particularly good to contain the fluororesin at 50% or more.

The thickness of the fluororesin film varies depending on the purpose, but it is preferably about 10 to 100 microns.

A UV absorber is added to the fluororesin film. As UV absorbers, those conventionally used in this type of field, such as plastics and paints, can be used. The addition amount is also the conventional amount. The interior board of the present invention is often used in places that are constantly exposed to ultraviolet light, such as in sterile rooms, so it is especially necessary to add a UV absorber. Addition of a UV absorber can prevent deterioration of the lower layer.

In addition, the interior board of the present invention is transparent and does not contain colorless pigments or extender pigments so that the surface does not deteriorate or become uneven even after long-term use. Note that it may be colored with a dye that causes little discoloration as long as it does not impair transparency.

As the synthetic paper as the sub-base material laminated under the fluororesin film, in addition to synthetic paper such as non-woven fabric, paper processed with resin can be used. Further, as the synthetic resin film, polypropylene (PP), polyethylene (PE), polyacrylic films, etc. can be used. If necessary, aluminum foil may be attached to the bottom surface of these.

The thickness of synthetic paper, synthetic resin film, and laminated products varies depending on the purpose, but it depends on processability and handling.
It is good to select between 10 and 200μ, preferably between 10 and 100μ.

The sub-base material is used to ensure better adhesion with the fluororesin film, and is also used to color or print the surface to improve the design effect of the interior material. For coloring or printing, there is no need to use special ink because there is a fluororesin film on the top surface. However, it is better to use one that is light-resistant.

The sub-base material and the fluororesin film are bonded together by dry lamination as described above.
Adhesives used for dry lamination are not particularly limited, and include, for example, urethane-based, polyester-based, acrylic-based resins, and the like.

In the interior board of the present invention, a service coat or film is coated or laminated on the back side of the base material depending on the purpose. By lining with a service coat or film, you can prevent the hygroscopic substrate from absorbing moisture and bending and deforming, and also improve the adhesion to waste boards, etc. when installing interior boards. can.

Examples of the backing film include polyester (PET), fluororesin, aluminum foil, PP, polyacrylic, and the like, and these can be used alone or as a laminate. As the service coat, an acrylic, urethane, or epoxy resin coating agent is used.

The interior board of the present invention can be used as a ceiling board, a floor board, or as a wall material to be stretched over a ceiling, floor, or wall. The size of each sheet may be the same as that of ordinary building materials, and during construction, it may be nailed, etc.
Alternatively, it may be affixed to the desired location using adhesive.

〔Example〕

The present invention will be described below with reference to embodiments, but the present invention is not limited to these examples.

FIG. 1 is an example showing the basic laminated structure of the present invention, where 1 is a base material, 2 is a decorative coating, 3 is an adhesive layer,
41 is a sub-base material made of synthetic paper or synthetic resin film, 5 is a colored or printed layer, 6 is a dry lamination layer, and 7 is a fluororesin film.

FIG. 2 is a sectional view showing another embodiment, in which a synthetic paper or synthetic resin film 41 is laminated to an aluminum foil 42 as the sub-base material, and a colored layer 5 is used.
An example is shown in which a printing layer 52 is applied on top of 1.

FIG. 3 shows an example in which the interior board A of the present invention is stretched over a flooring material 9 as a floorboard.

In addition, when using the board of the present invention as a ceiling board, floor board, or wall board, it can be attached or nailed directly to a concrete surface using adhesive or nails, and when used as a wall material, As mentioned above, it can also be spread over a waste board.

[Effect of idea]

The interior board of this invention has a fluororesin film containing no pigments and added UV absorbers on the outermost surface, so it has the weather resistance characteristic of fluororesin.
It has excellent chemical resistance, corrosion resistance, and stain resistance. Furthermore, it is difficult for germs and dirt to adhere to the surface, and even if it does adhere, it can be easily peeled off or wiped off due to the non-adhesive properties of fluororesin, so there is no organic matter adhering to the surface and the surface can be kept clean at all times. . Therefore, substances that can cultivate germs and bacteria, dirt, foreign matter, etc. do not adhere to the surface of the board, and even if they do adhere, they can be easily removed, so a high level of hygiene can be maintained at all times.

Furthermore, fluororesin films have excellent chemical resistance, especially disinfection resistance, acid resistance, alkali resistance, and solvent resistance. Because there is no dust, sufficient disinfection and insecticidal work can be carried out and it can be kept clean at all times, so it is suitable for highly hygienic rooms such as biotechnology handling rooms, sterilization rooms, sterile rooms, operating rooms, clean rooms, cafeterias, food manufacturing processing rooms, etc. Can be used as an interior board.

The interior design board of this invention is easy to work with, unlike conventional surface materials that are pasted to walls, ceilings, etc. on site, and can be laminated by roll pressing, and can be rolled using either cold or hot rolls. It can also be pressed, and unlike conventional floorboards, it does not use adhesives that contain organic solvents such as adhesives, so it does not cause wrinkles or the surface may evaporate after lamination or installation. No blistering or air bubbles.

Furthermore, in this invention, a backing such as a service coat is applied to improve adhesion to the waste board, and in the case of a hygroscopic base material, moisture absorption is prevented, so there is no sagging and it is suitable for long-term use. There is no problem of the boards coming apart from their joints.

Although the board of the present invention is mainly used as an interior material, it can also be used as an exterior material, and it goes without saying that it can also be used in general homes, such as kitchens and bathrooms.

[Brief explanation of the drawing]

1 and 2 are enlarged cross-sectional views showing each embodiment of the present invention, and FIG. 3 is a perspective view showing an example of the use of the board of the present invention. In the figure, 1... base material, 2... decorative coating layer, 3...
Adhesive, 41...Synthetic paper or synthetic resin film,
42... Aluminum foil, 5... Printed or colored layer, 6
... Dry lamination layer, 7 ... Fluororesin film, 8 ... Service coat or film.

Claims (1)

[Scope of utility model registration request] A decorative coating is applied to the surface of a non-combustible or flame-retardant base material to create a smooth surface, and the decorative coating surface is coated with a thickness of 10% selected from synthetic paper or synthetic resin film, and products laminated with aluminum foil. A ~200μ sub-base material is laminated with a solvent-free adhesive, and a printed or colored layer is sequentially applied to the sub-base material, followed by a 10-100μ thick transparent fluororesin film containing an ultraviolet absorber on the outermost surface. An interior board for highly hygienic control rooms that is laminated and has a moisture-proof coating applied to the back side of the base material.