JP2005120484A - Easy-to-install decorative sheet - Google Patents

Abstract

[PROBLEMS] An easy-to-replace and easy-to-replace decorative sheet that can be renovated and rebuilt, has little expansion and contraction even when moisture such as moisture is absorbed, has excellent dimensional stability, and is coated. Provided is an easy-to-install decorative sheet that can sufficiently ensure adhesion between layers even by the method.
[Solution] Easily formed by laminating a foamed resin layer such as a foamed polyvinyl chloride resin layer, a foamed aqueous emulsion resin layer or a foamed polyolefin-based resin layer on the surface side of the base sheet, and an adhesive layer and a release sheet on the back side. A decorative decorative sheet, wherein the base sheet comprises 20 to 80% by weight of one or more synthetic fibers selected from polyester fiber, polypropylene fiber and polyethylene fiber, and 80 to 20% by weight of pulp. It is characterized by comprising.
[Selection figure] None

Description

  The present invention relates to an easy-to-install decorative sheet that is easy to install and can be easily replaced and re-attached, not only for renovation but also for new construction.

  Conventional easy-to-install decorative sheets are made by laminating a foamed or non-foamed polyvinyl chloride resin layer on the paper surface, and forming an adhesive layer and release sheet on the back side of the paper, or on the back side of the polyvinyl chloride film. There exist what formed the adhesive layer and the release sheet, what formed the adhesive layer and the release sheet on the back of the polyester film, and the like.

An easy-to-use decorative sheet is also known in which a foamed or non-foamed polyvinyl chloride resin layer is formed on the front side of a polyester film or the like, and a pressure-sensitive adhesive layer and a release sheet are provided on the back side (Patent Document 1). .
JP-A-11-131396.

  However, when paper is used as a base material, if moisture such as moisture is sucked, there is expansion and contraction and dimensional stability does not appear.

  In addition, when a film such as polyester is used as a base material, only the extrusion method and the calendar method can be used as a method for forming the resin layer on the surface side, and a method using a polyvinyl chloride sol or an aqueous emulsion resin can be used. In the case of a certain coating method, there is a problem that the anchor action does not occur as in the case of coating on paper, and the substrate cannot be adhered to the coated surface and peeled off.

  In order to solve the above-mentioned problems, the present invention is an easy-to-replace and easy-to-replace decorative sheet that can be renovated and rebuilt, and has little expansion and contraction even when moisture such as moisture is absorbed. Another object of the present invention is to provide an easy-to-install decorative sheet that is excellent in properties and that can sufficiently ensure adhesion between layers even by a coating method.

  The easy-to-install decorative sheet of the present invention is an easy-to-install decorative sheet obtained by laminating a foamed resin layer on the surface side of a base sheet and an adhesive layer and a release sheet on the back side, and the base sheet is a polyester fiber. And a mixed paper made of 20 to 80% by weight of one or more synthetic fibers selected from polypropylene fiber and polyethylene fiber and 80 to 20% by weight of pulp.

  In particular, the foamed resin layer is a foamed polyvinyl chloride resin layer, a foamed aqueous emulsion resin layer, or a foamed polyolefin resin layer.

  The easy-to-install decorative sheet of the present invention comprises, as a base sheet, a mixture comprising 20 to 80% by weight of one or more synthetic fibers selected from polyester fiber, polypropylene fiber and polyethylene fiber and 80 to 20% by weight of pulp. Paper making is used. Therefore, since the synthetic fiber is contained in an amount of 20% by weight or more, the expansion and contraction due to moisture absorption and water absorption is extremely small, the dimensional stability is excellent, and since the pulp is contained in an amount of 20% by weight or more, a foamed resin layer is formed. In this case, sufficient adhesion can be easily obtained not only by an extrusion method and a calendar method, but also by a coating method using a polyvinyl chloride sol or an aqueous emulsion resin.

  The base sheet used in the present invention is a mixed paper of single or plural kinds of polyester fibers, polypropylene fibers and polyethylene fibers which are synthetic fibers and pulp.

  The proportion of synthetic fibers is 20-80% by weight. If it is less than 20% by weight, it expands and contracts during moisture absorption and water absorption, and exhibits a dimensional change of 0.5% or more, which is likely to cause gaps or push-ups in the joint portion of the decorative sheet. On the other hand, if it exceeds 80% by weight, the pulp content is as low as less than 20% by weight. Therefore, when the foamed resin layer is formed by a coating method using a polyvinyl chloride sol or an aqueous emulsion resin, the base sheet and the foamed resin are used. This is because the adhesion with the layer is deteriorated.

  As the foamed resin layer used in the present invention, a polyvinyl chloride resin, an aqueous emulsion resin, or a polyolefin resin is used. These can be used by blending each resin as a main component with a foaming agent, a concealing agent, a filler, or a plasticizer in the case of a polyvinyl chloride resin.

  In the case of a foamed polyvinyl chloride resin, the foamed resin layer is formed by a coating method when using a paste resin, or a calendar method or an extrusion method when using a straight resin.

  Although it does not specifically limit as aqueous emulsion resin, For example, it is from at least 1 sort (s) or 2 or more types, such as an acrylic ester, an aromatic vinyl compound, SBR type | system | group, a vinyl acetate type | system | group, an ethylene-vinyl acetate copolymer, a silicone, a polyurethane, a polybutene. However, the structure is not particularly limited, but an ordinary copolymer or a core / shell two-layer structure, a blend, or the like can be used. The molding method is a coating method.

  Polyolefin resins include polyethylene, polypropylene, polybutene, polyisoprene, ethylene-propylene copolymer, ethylene-vinyl acetate copolymer, ethylene-α-olefin copolymer, propylene-α-olefin copolymer, ethylene-ethyl. An acrylate copolymer, an ionomer, or the like can be appropriately selected, and a single type or a mixture of plural types may be used. The molding method is a calendar method or an extrusion method.

  As the pressure-sensitive adhesive used in the present invention, one-component curing or two-component curable acrylic resin such as vinyl acetate emulsion, ethylene-vinyl acetate copolymer emulsion, acrylic emulsion or the like is used, but is not particularly limited.

  The release sheet used in the present invention is a so-called release separator, which is necessary for polyester-type, polyolefin-type, polyvinyl chloride-type, vinylon-type synthetic resin films, high-quality paper, pulp paper such as glassine paper, and the like. According to the above, a material that has been subjected to uneven processing and has been subjected to a release treatment with silicone or the like is used, but there is no particular limitation.

<Foamed resin layer formation>
A mixed paper containing 50% by weight of polyethylene fiber and 50% by weight of pulp is coated with a comma coater using a foam resin made of paste resin with the composition shown in Table 1 (numbers are parts by weight). It was. Thereafter, a pattern was printed with a gravure printing machine, and embossed at the same time as heat foaming at 190 ° C.

<Adhesive processing>
The acrylic resin solution is applied to the back surface of the mixed paper on which the foamed polyvinyl chloride resin layer is formed at 15 g / m ² with a gravure printing machine. At the same time, a polyester film, which is a release sheet, was laminated to obtain an easy-to-install decorative sheet of the present invention.

  In Example 1 above, instead of applying a foam resin of paste resin specification with a comma coater, a foam resin of a straight resin specification having the composition shown in Table 1 was used. Using the resin, laminating was carried out on the mixed paper using a calendar, and the rest was carried out in the same manner as in Example 1 to obtain an easy-to-install decorative sheet of the present invention.

  In Example 1 above, instead of applying a foam resin of paste resin specification with a comma coater, a foamable aqueous emulsion resin having the composition shown in Table 1 was used, and coating was performed on the mixed paper with a die coater. The rest was done in the same manner as in Example 1 to obtain an easy-to-install decorative sheet of the present invention.

  In Example 1 above, instead of applying a foam resin of paste resin specification with a comma coater, using a foamable polyolefin resin having the composition shown in Table 1, laminating on a mixed paper with a calendar, Other than that, the easy-to-use decorative sheet of the present invention was obtained in the same manner as in Example 1.

Comparative Example 1
In Example 1, an easy-to-use decorative sheet was obtained in the same manner as in Example 1 except that a mixed paper containing 10% by weight of polyethylene fibers and 90% by weight of pulp was used instead of the mixed paper.

Comparative Example 2
In Example 1 above, instead of the above mixed paper, a mixed paper containing 90% by weight of polyethylene fibers and 10% by weight of pulp was used. However, the coating resin did not adhere to the mixed paper, and a good easy-to-install decorative sheet could not be obtained.

以上の各例について、コーティング時またはカレンダー時と、エンボス時との問題の有無と、水伸縮、施工性（切り目）の評価を行った。

About each above example, the presence or absence of the problem at the time of a coating or a calendar | calender, and the time of embossing, water expansion and contraction, and workability (cut) were evaluated.

<Water stretch evaluation>
Each easy-to-make decorative sheet 1 m was immersed in water for 30 minutes, and the change rate (%) of the dimension immediately after taking out and the dimension after air drying for 24 hours with respect to the dimension before immersion was measured.

<Evaluation of workability>
Each easy-to-make decorative sheet was affixed to a gypsum board, and a cut was made in the center with a cutter knife. Then, water was sprayed with a spray bottle, and it was evaluated whether the cuts were noticeable or not noticeable after 24 hours.

  The results of the above evaluation are shown in Table 2.

Claims (2)

  An easy-to-install decorative sheet obtained by laminating a foamed resin layer on the front side of a base sheet and an adhesive layer and a release sheet on the back side, wherein the base sheet is selected from polyester fiber, polypropylene fiber and polyethylene fiber An easy-to-install decorative sheet comprising a mixed paper made of one or more synthetic fibers of 20 to 80% by weight and pulp of 80 to 20% by weight.   The easy-to-use decorative sheet according to claim 1, wherein the foamed resin layer is a foamed polyvinyl chloride resin layer, a foamed aqueous emulsion resin layer, or a foamed polyolefin-based resin layer.