JPH0539880Y2 - - Google Patents

Description

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

[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. have sufficient weather resistance, water resistance, stain resistance, corrosion resistance,
Since it does not have chemical resistance, it is easy for bacteria, sewage, and dirt to adhere to it, and if it does adhere, it is unsanitary if you do not wipe it off as soon as possible, and it may cause stains on the ceiling, walls, floor, etc. However, when used for a long time, there were problems such as the product not returning. 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. The problem arises that minute cracks and unevenness are formed on the surface, and as a result, bacteria, dust, etc. enter into these cracks and unevenness, 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]

Conventional surface materials, such as linoleum and synthetic resin boards, are stuck to floors and walls with adhesive without gaps, so they have a problem in that they cannot be easily replaced. In other words, boards are weather-resistant, solvent-resistant, and chemical-resistant due to their intended use, so in order to dissolve the adhesive with a solvent, the solvent must penetrate through a small gap, which means that it will last for a long time. It takes. In addition, if the board is forcibly removed mechanically, another problem arises in that the floor and wall surfaces are damaged.

Furthermore, when replacing the board, if the solvent used to remove the previous adhesive remains, it has the disadvantage that after the board is pasted, if the board is in the form of a soft sheet, it will appear as a blister on the surface of the board. This also applies when air enters between the construction surface and the board surface during pasting.

On the other hand, in the method of applying a paint, since a weather-resistant, chemical-resistant, and solvent-resistant paint is used, there is a problem in that the paint film must be scraped off.

This invention was developed to solve the above-mentioned conventional problems, and is a fluororesin film that has excellent weather resistance, stain resistance, chemical resistance, corrosion resistance, prevents sterilization and dust adhesion, and has excellent wipeability. To provide an interior surface material which has on the outermost surface, is easy to apply, has no blistering, wrinkles or peeling on the surface after application, and is easy to reapply.

[Means for solving problems]

The interior surface material of the present invention is provided with a printed or colored layer as necessary on the surface of the base material of synthetic paper or synthetic resin film, and then UV rays (hereinafter referred to as UV (abbreviated as )) is characterized by sequentially laminating transparent fluororesin films that may contain an absorbent, and laminating paper on the back side of the base material with or without aluminum foil.

In the present invention, the fluororesin film is laminated onto the surface of the substrate by dry lamination using a solvent-free adhesive. In this way, by dry laminating, even if a certain amount of temperature is applied during or after applying the interior surface material of the present invention, the surface material will not swell due to vaporization and expansion of the solvent and moisture.

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), chlorotrifluoro Examples include ethylene-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 preferable 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 may be added to the fluororesin film for the purpose of improving weather resistance. 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 surface material of this invention is often used in places that are constantly exposed to ultraviolet rays, such as sterile rooms, so UV
The addition of absorbents is especially necessary. Addition of a UV absorber can prevent deterioration of the lower layer.

Furthermore, the interior surface material 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 base material laminated under the fluororesin film, in addition to synthetic paper such as nonwoven 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 synthetic paper or synthetic resin film may be colored in advance.

If necessary, the surface of the base material may be directly colored or printed, or a colored or printed film may be attached to it 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 preferable to use a light-resistant material, such as one containing a pigment-based colorant.

The 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.

The paper laminated on the back side of the base material is not particularly limited, but when the surface material of the present invention is attached to the construction surface, the gas remaining between the surface material and the construction surface can be easily vented to the outside. It is best to use a material that absorbs some gas into the paper and does not cause blistering or uneven application. In addition, it is preferable to use a material that can be easily peeled off between layers when the surface material is peeled off for reapplying, without damaging the construction surface.

Furthermore, it is preferable to use a material that can absorb unevenness caused by uneven application of adhesive during construction.

For the above reasons, it is preferable to use paper with appropriate air permeability and thickness, and it is even better to use non-combustible paper or flame-retardant paper in view of improving fire prevention performance. More specifically, the thickness of the paper is preferably about 200 to 500 μm.

As the adhesive for laminating the above paper onto the base material, it is recommended to use one that has good water resistance, heat resistance, and adequate permeability to the paper on the bottom surface, but it is recommended to use an adhesive that does not inhibit delamination of the paper layers. good. Examples include acrylic resins, vinyl acetate resins, etc., but it may also be laminated with molten polyethylene depending on the purpose.

The surface material of the present invention can be attached to construction surfaces such as floors and walls using an adhesive. It may be supplied with release paper pasted on the surface, and the release paper may be peeled off for installation. The release paper is not particularly limited, but a paper film treated with a release agent on one or both sides can be used.

Furthermore, since the outermost surface of the surface material of the present invention is made of a fluororesin film, it is also possible to omit the above-mentioned release paper by using the surface material coated with an adhesive on the back side in the form of a roll.

The adhesive applied to the back surface of the surface material may be an adhesive that exhibits adhesive properties when wetted with water or an organic solvent, in addition to an adhesive.

The interior surface material of the present invention can be applied as a ceiling material, a floor material, or as a wall material to a ceiling surface, floor surface, or wall surface. The size of one sheet may be the same as that of ordinary building materials, or it may be in the form of a scroll like wallpaper. When installing, attach it 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.

Figure 1 shows an example of the basic laminated structure of the present invention, in which 1 is a base material made of synthetic paper or synthetic resin film, 2 is a colored or printed layer, 3 is a dry lamination layer, and 4 is a fluororesin. 5 is an adhesive, and 6 is a paper.

FIG. 2 is a sectional view showing another embodiment, in which the base material 1
The aluminum foil 12 is laminated with synthetic paper or synthetic resin film 11, and the colored layer 2
A printing layer 22 is applied on the paper 6, and an adhesive 7 is applied on the surface of the paper 6.
An example is shown in which the adhesive 7 is applied and the upper surface of the adhesive 7 is covered with a release paper 8.

FIG. 3 shows an example in which the interior surface material A of the present invention is stretched over nine floors as a floor material.

The surface material of the present invention can be directly attached to a concrete surface using an adhesive when used as a ceiling material, floor material, or wallpaper.

[Effect of idea]

The interior surface material of this invention has a fluororesin film that does not contain pigments etc. on the outermost surface.
It has excellent weather resistance, chemical resistance, corrosion resistance, and stain resistance, which are unique to fluororesin. 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 organic matter does not adhere to the surface and can be kept clean at all times. . Therefore, substances that can cultivate bacteria and bacteria, dirt, foreign matter, etc. do not adhere to the surface of the surface material, 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.

As mentioned above, the surface material of the present invention has paper 6 on the back side of the base material.
Because this layer is provided, there is no need to take into consideration air remaining between the surface material and the construction surface as in conventional methods, and even if adhesives such as solvents are used during construction, Construction can be done without worrying about solvents vaporizing and causing blisters on the construction surface.

Furthermore, since the paper 6 absorbs uneven application of the adhesive, there is no smearing of the finished surface due to uneven application.

The surface material of this invention can be easily peeled off from the construction surface using the above-mentioned paper delamination, so it can be easily replaced at any time and a new surface can always be obtained, and has various excellent effects. play.

Although the surface material 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, toilets, and bathrooms.

[Brief explanation of the drawing]

1 and 2 are enlarged sectional views showing each embodiment of the present invention, and FIG. 3 is a perspective view showing an example of the use of the surface material of the present invention. In the figure, 1... Base material, 11... Synthetic paper or synthetic resin film, 12... Aluminum foil, 2... Printing or colored layer, 21... Colored layer, 22... Printing layer, 3
... Dry lamination layer, 4 ... Fluororesin film, 5 ... Adhesive, 6 ... Paper, 7 ... Adhesive, 8 ... Release paper, 9 ... Floor.

Claims (1)

[Claims for Utility Model Registration] (1) A printed or colored layer is provided as necessary on the surface of a base material of synthetic paper or synthetic resin film with a thickness of 10 to 200μ, and then a dry lamination layer is applied on the top surface. A transparent fluororesin film containing 50% by weight or more of fluororesin and an ultraviolet absorber with a thickness of 10 to 100μ is laminated through the film, and an aluminum foil is placed on the back side of the base material to a thickness of 200 to 500μ. An interior surface material characterized by laminated paper. (2) The interior surface material according to claim 1, which is characterized in that an adhesive is applied to the paper surface on the back side of the interior surface material, and the adhesive surface is covered with release paper.