JP2573428Y2 - Skirting wood - Google Patents

Description

[Detailed description of the invention]

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a baseboard provided with a barrier layer and an adhesive layer obtained by irradiating a back surface with actinic light.

2. Description of the Related Art Conventionally, construction of a baseboard made of a thermoplastic resin or the like has been performed using an adhesive. However, since the baseboard protects the lower part of the wall surface, and the work of the baseboard is inevitably performed at the feet, the unnatural posture of bending down the waist continued, which was a difficult work for the construction worker.

[0003]

[Problems to be Solved by the Invention] In order to solve the above-mentioned problems, it is necessary to previously apply an adhesive to a baseboard having no adhesive or pressure-sensitive adhesive treatment (hereinafter, referred to as a baseboard body). Was proposed. However, the baseboard body is usually made of a vinyl chloride resin (PVC) containing a plasticizer, and there has been a problem that the conventional pressure-sensitive adhesive is affected by the above-mentioned plasticizer and the adhesive strength is significantly reduced.

[0004]

SUMMARY OF THE INVENTION The present invention has been made in view of such a background, and has as its object to provide a baseboard with an adhesive which has good workability and is not affected by a plasticizer or the like. .

[0005]

According to the present invention, a pressure-sensitive adhesive layer is formed on a back surface of a baseboard through a barrier layer obtained by irradiating a monomer and / or an oligomer having an unsaturated double bond with actinic light. It relates to a printed baseboard.

The actinic ray-crosslinkable barrier layer according to the present invention comprises a monomer and / or an oligomer having an unsaturated double bond, and further contains a photopolymerization initiator when ultraviolet rays are used as actinic rays. If necessary, an organic solvent is contained.

In the present invention, the actinic ray-curable monomer having an unsaturated double bond is (meth) acrylic acid or (meth) acrylic acid ester having one to several functional groups in the molecule, for example, methyl (meth) acrylate. ) Acrylate, ethyl (meth) acrylate, ethylene glycol di (meth) acrylate, polyethylene glycol di (meth)
Acrylate, hydroxyethyl (meth) acrylate, neopentyl glycol di (meth) acrylate,
Commonly known reactive diluents such as tripropylene glycol di (meth) acrylate, trimethylolpropane di (meth) acrylate, and trimethylolpropane tri (meth) acrylate; oligomers for actinic radiation-curable coatings Oligomers such as epoxy acrylate, urethane acrylate, and polyester acrylate, which are generally used, are preferred.

Examples of the photopolymerization initiator include acetophenones such as diethoxyacetophenone, benzoin ethers such as isopropylbenzoin ether, benzyl ketals such as benzyl methyl ketal, ketone compounds such as hydroxycyclohexyl phenyl ketone and benzophenone. Etc. can be used. Further, photosensitizers such as amines can be used.

Further, if necessary, a solvent such as vinyl acetate, isopropyl alcohol and methanol / toluene may be added.

In the present invention, the monomer and / or oligomer is applied to a thickness of 1 to 50 μm and irradiated with actinic light for several seconds to several minutes.

FIG. 1 is a cross-sectional view of the baseboard of the present invention, wherein 1 is a baseboard body and 2 is a barrier layer.

The baseboard body 1 is preferably a soft baseboard containing 30 to 60 parts by weight of a plasticizer per 100 parts by weight of PVC. The thickness of the baseboard is preferably 1 to 3 mm.

A barrier layer 2 obtained by applying an actinic ray-curable resin composition comprising a monomer and / or oligomer having an unsaturated double bond to the back surface of the baseboard body and then irradiating the composition with an actinic ray is formed. The barrier layer is preferably 1 to
50 μm.

An adhesive layer 3 is formed outside the barrier layer. For the pressure-sensitive adhesive layer 3, a conventionally used rubber-based, acrylic, vinyl ether-based, or silicone-based pressure-sensitive adhesive can be used. Particularly, a crosslinked acrylic pressure-sensitive adhesive is suitable. Thus, the present invention baseboard 4 is obtained.

FIG. 2 is a sectional view of the construction of the baseboard according to the present invention. The floor finishing material 7 is applied on the floor substrate G, while the wallpaper 5 is applied on the wall substrate W. The present invention baseboard 4 is applied to the surface of the wallpaper 5 so that the tip of the baseboard 4 contacts the floor finishing material.

A barrier layer 2 is formed on the back surface of the baseboard body 1, and an adhesive layer 3 is formed on the side of the barrier layer 2 where the wall is bonded.

In the baseboard of the present invention, migration of the plasticizer indicated by the arrow A is prevented at the boundary 6 between the baseboard body 1 and the barrier layer 2 on the back surface, and the baseboard 4 always maintains good adhesive strength and shrinks. Nor.

[0018]

[Results of the Invention] The baseboard was effectively attached, the construction efficiency was improved, and the burden on the workers was reduced.

Since the pressure-sensitive adhesive layer was interposed with the barrier layer obtained by irradiation with actinic light, the adhesive strength did not decrease over time due to the plasticizer from the baseboard body.

The baseboard did not shrink over time.

[0021]

EXAMPLE A resin composition for a UV curable barrier layer having the following composition was applied to a thickness of 10 μm on a soft baseboard containing 46 parts of a plasticizer with respect to 100 parts by weight of PVC, and irradiated with UV to form a barrier layer. Thereafter, a known acrylic hot-melt adhesive was applied to obtain an adhesive baseboard.

Urethane acrylate 50 parts Polypropylene glycol diacrylate 50 parts Photoinitiator 3 parts

On the other hand, as a comparative example, a baseboard having a known acrylic hot melt adhesive applied to the back of the baseboard body was obtained.
With the obtained baseboards of Examples and Comparative Examples adhered to vinyl wallpaper, they were bonded at 20 ° C. for 3 days (A) and at 50 ° C. for 1 day.
Week (B) The adhesive strength was measured while maintaining the same condition.
Also, in the baseboard of the example, no dimensional change occurred,
The baseboard of the comparative example shrunk.

The obtained adhesive baseboard of the present invention was able to maintain the initial adhesive strength of 2.5 cm in width and width of 2.8 kg for a long period of time. On the other hand, the baseboard of the comparative example decreased from 1.7 kg to 1.0 kg per 2.5 cm width with the passage of time.

[Brief description of the drawings]

FIG. 1 is a sectional view of the baseboard of the present invention.

FIG. 2 is a cross-sectional view showing a construction state of the baseboard of the present invention.

[Description of Signs] 1 is a baseboard body, 2 is a barrier layer, 3 is an adhesive layer, and 6 is a boundary between the baseboard body and the barrier layer.

Claims (2)

(57) [Scope of request for utility model registration] 1. A baseboard having a pressure-sensitive adhesive layer formed on a back surface of a baseboard body via a barrier layer obtained by irradiating a monomer and / or oligomer having an unsaturated double bond with actinic light. 2. The baseboard according to claim 1, wherein the baseboard is soft and contains polyvinyl chloride and a plasticizer.