JP2014109087A - Wall paper - Google Patents
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- JP2014109087A JP2014109087A JP2012275114A JP2012275114A JP2014109087A JP 2014109087 A JP2014109087 A JP 2014109087A JP 2012275114 A JP2012275114 A JP 2012275114A JP 2012275114 A JP2012275114 A JP 2012275114A JP 2014109087 A JP2014109087 A JP 2014109087A
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- polyvinyl chloride
- wallpaper
- chloride resin
- resin layer
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- 229920005989 resin Polymers 0.000 claims abstract description 54
- 239000011347 resin Substances 0.000 claims abstract description 54
- 229920000915 polyvinyl chloride Polymers 0.000 claims abstract description 45
- 239000004800 polyvinyl chloride Substances 0.000 claims abstract description 45
- 239000010410 layer Substances 0.000 claims abstract description 42
- 238000006116 polymerization reaction Methods 0.000 claims abstract description 8
- 239000000758 substrate Substances 0.000 claims abstract description 7
- 239000002335 surface treatment layer Substances 0.000 claims abstract description 7
- 239000000839 emulsion Substances 0.000 claims abstract description 5
- 229920001296 polysiloxane Polymers 0.000 claims abstract description 5
- 239000004088 foaming agent Substances 0.000 claims description 12
- 239000011342 resin composition Substances 0.000 claims description 10
- 239000011241 protective layer Substances 0.000 claims description 9
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 claims description 4
- 238000013461 design Methods 0.000 abstract description 16
- 238000000034 method Methods 0.000 description 19
- 239000000463 material Substances 0.000 description 13
- 238000010438 heat treatment Methods 0.000 description 10
- 238000002156 mixing Methods 0.000 description 9
- 230000000052 comparative effect Effects 0.000 description 5
- 238000004049 embossing Methods 0.000 description 5
- 238000011156 evaluation Methods 0.000 description 5
- 238000005187 foaming Methods 0.000 description 5
- 230000033228 biological regulation Effects 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 4
- 238000000576 coating method Methods 0.000 description 4
- 239000000945 filler Substances 0.000 description 4
- 238000007646 gravure printing Methods 0.000 description 4
- 238000002485 combustion reaction Methods 0.000 description 3
- 150000001875 compounds Chemical class 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- -1 oxybisbenzenesulfonyl Chemical group 0.000 description 3
- 239000004014 plasticizer Substances 0.000 description 3
- 238000007639 printing Methods 0.000 description 3
- 239000003381 stabilizer Substances 0.000 description 3
- 238000005728 strengthening Methods 0.000 description 3
- 239000002344 surface layer Substances 0.000 description 3
- RNFJDJUURJAICM-UHFFFAOYSA-N 2,2,4,4,6,6-hexaphenoxy-1,3,5-triaza-2$l^{5},4$l^{5},6$l^{5}-triphosphacyclohexa-1,3,5-triene Chemical compound N=1P(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP(OC=2C=CC=CC=2)(OC=2C=CC=CC=2)=NP=1(OC=1C=CC=CC=1)OC1=CC=CC=C1 RNFJDJUURJAICM-UHFFFAOYSA-N 0.000 description 2
- VTYYLEPIZMXCLO-UHFFFAOYSA-L Calcium carbonate Chemical compound [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- 239000000654 additive Substances 0.000 description 2
- 239000003086 colorant Substances 0.000 description 2
- 238000010276 construction Methods 0.000 description 2
- 238000010894 electron beam technology Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000003063 flame retardant Substances 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000004745 nonwoven fabric Substances 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000012756 surface treatment agent Substances 0.000 description 2
- 238000012360 testing method Methods 0.000 description 2
- 239000002759 woven fabric Substances 0.000 description 2
- 239000004156 Azodicarbonamide Substances 0.000 description 1
- 239000004803 Di-2ethylhexylphthalate Substances 0.000 description 1
- 229920000219 Ethylene vinyl alcohol Polymers 0.000 description 1
- OAICVXFJPJFONN-UHFFFAOYSA-N Phosphorus Chemical compound [P] OAICVXFJPJFONN-UHFFFAOYSA-N 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- ATJFFYVFTNAWJD-UHFFFAOYSA-N Tin Chemical compound [Sn] ATJFFYVFTNAWJD-UHFFFAOYSA-N 0.000 description 1
- 240000008042 Zea mays Species 0.000 description 1
- 235000005824 Zea mays ssp. parviglumis Nutrition 0.000 description 1
- 235000002017 Zea mays subsp mays Nutrition 0.000 description 1
- IHBCFWWEZXPPLG-UHFFFAOYSA-N [Ca].[Zn] Chemical compound [Ca].[Zn] IHBCFWWEZXPPLG-UHFFFAOYSA-N 0.000 description 1
- 239000004840 adhesive resin Substances 0.000 description 1
- 229920006223 adhesive resin Polymers 0.000 description 1
- 239000001361 adipic acid Substances 0.000 description 1
- 235000011037 adipic acid Nutrition 0.000 description 1
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 1
- XOZUGNYVDXMRKW-AATRIKPKSA-N azodicarbonamide Chemical compound NC(=O)\N=N\C(N)=O XOZUGNYVDXMRKW-AATRIKPKSA-N 0.000 description 1
- 235000019399 azodicarbonamide Nutrition 0.000 description 1
- SHLNMHIRQGRGOL-UHFFFAOYSA-N barium zinc Chemical compound [Zn].[Ba] SHLNMHIRQGRGOL-UHFFFAOYSA-N 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- BJQHLKABXJIVAM-UHFFFAOYSA-N bis(2-ethylhexyl) phthalate Chemical compound CCCCC(CC)COC(=O)C1=CC=CC=C1C(=O)OCC(CC)CCCC BJQHLKABXJIVAM-UHFFFAOYSA-N 0.000 description 1
- 229910000019 calcium carbonate Inorganic materials 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 239000002131 composite material Substances 0.000 description 1
- 235000005822 corn Nutrition 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 238000004079 fireproofing Methods 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000001879 gelation Methods 0.000 description 1
- 239000010440 gypsum Substances 0.000 description 1
- 229910052602 gypsum Inorganic materials 0.000 description 1
- 230000020169 heat generation Effects 0.000 description 1
- WNLRTRBMVRJNCN-UHFFFAOYSA-N hexanedioic acid Natural products OC(=O)CCCCC(O)=O WNLRTRBMVRJNCN-UHFFFAOYSA-N 0.000 description 1
- 238000003475 lamination Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- XNGIFLGASWRNHJ-UHFFFAOYSA-N o-dicarboxybenzene Natural products OC(=O)C1=CC=CC=C1C(O)=O XNGIFLGASWRNHJ-UHFFFAOYSA-N 0.000 description 1
- 230000000149 penetrating effect Effects 0.000 description 1
- 150000003014 phosphoric acid esters Chemical class 0.000 description 1
- 239000011574 phosphorus Substances 0.000 description 1
- 229910052698 phosphorus Inorganic materials 0.000 description 1
- 229920005606 polypropylene copolymer Polymers 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 239000002994 raw material Substances 0.000 description 1
- 238000007634 remodeling Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 229920002050 silicone resin Polymers 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 230000003746 surface roughness Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 239000000454 talc Substances 0.000 description 1
- 229910052623 talc Inorganic materials 0.000 description 1
- 238000010998 test method Methods 0.000 description 1
- 238000005979 thermal decomposition reaction Methods 0.000 description 1
- 230000000007 visual effect Effects 0.000 description 1
Landscapes
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
- Laminated Bodies (AREA)
Abstract
Description
本発明は壁紙、特に難燃性、不陸隠蔽性、外観意匠性に優れ且つ表面強度に優れた壁紙に関する。 The present invention relates to a wallpaper, in particular, a wallpaper excellent in flame retardancy, non-land concealing property, appearance design and surface strength.
従来、壁紙として、紙、織物、編物、不織布等の基材上にポリ塩化ビニル樹脂等の発泡樹脂層を形成したものが知られている。壁紙は外観意匠性向上のために設けられるものであるが、近年は高い難燃性や表面強度、不陸隠蔽性が求められている。 Conventionally, wallpaper in which a foamed resin layer such as polyvinyl chloride resin is formed on a substrate such as paper, woven fabric, knitted fabric, and nonwoven fabric is known. The wallpaper is provided to improve the appearance design, but in recent years, high flame retardancy, surface strength, and non-land concealment are required.
壁紙の難燃性は従来、難燃剤の添加によって防火性能を付与してきたが、現在の壁紙に要求される難燃性は燃焼時の発熱量が問題とされる。そのため、単位面積あたりの樹脂量が多いほど難燃性は低下し、樹脂量が少ないほど難燃性は向上する。しかし、樹脂量を少なくすると発泡樹脂層の厚みが小さくなり、立体感のある形状付与が出来ず外観意匠性が悪くなる。 Conventionally, the flame retardancy of a wallpaper has been imparted with a fireproofing performance by the addition of a flame retardant, but the flame retardancy required for the current wallpaper is a problem of the amount of heat generated during combustion. Therefore, the greater the amount of resin per unit area, the lower the flame retardancy, and the smaller the amount of resin, the better the flame retardance. However, if the amount of resin is reduced, the thickness of the foamed resin layer is reduced, and a three-dimensional shape cannot be imparted, resulting in poor appearance design.
意匠性と難燃性を付与する技術として、例えば特許文献１には発泡ポリ塩化ビニル層を多層とし、下層に懸濁重合ポリ塩化ビニルを主体とし発泡剤を配合した組成物、表面層に乳化重合ポリ塩化ビニルを主体とし発泡剤を配合した組成物を形成し、また壁紙の面積当たりのポリ塩化ビニル量を少なくする技術が開示されている。 As a technique for imparting designability and flame retardancy, for example, Patent Document 1 discloses a composition in which a foamed polyvinyl chloride layer is a multilayer, a lower layer is mainly composed of suspension-polymerized polyvinyl chloride, and a foaming agent is blended. A technique for forming a composition mainly composed of polymerized polyvinyl chloride and blending a foaming agent and reducing the amount of polyvinyl chloride per area of the wallpaper is disclosed.
また、下地の壁面の凹凸や隙間、段差を隠蔽する不陸隠蔽性と表面強度も近年要求が高まり、それらを付与する技術として、例えば特許文献２には特定範囲の坪量と厚みを有する裏打紙に特定範囲の坪量の樹脂層を設け、この樹脂層は発泡しないかあるいは低発泡倍率とする技術が開示されている。 Further, in recent years, there has been an increasing demand for surface roughness and unevenness in the surface of the wall of the foundation, and as a technique for providing them, Patent Document 2 discloses a backing having a basis weight and thickness in a specific range. A technique is disclosed in which a resin layer having a basis weight in a specific range is provided on paper, and the resin layer is not foamed or has a low expansion ratio.
また、特許文献３には発泡塩化ビニル樹脂層を多層とし、表面層の発泡倍率を下層の発泡倍率より相対的に低くする技術が開示されている。 Patent Document 3 discloses a technique in which the foamed vinyl chloride resin layer is a multilayer, and the foaming ratio of the surface layer is relatively lower than that of the lower layer.
また、特許文献４には発泡塩化ビニル樹脂層を非発泡樹脂層ではさんで多層とし、表面層の樹脂の平均重合度を大きくし、さらに表面層を電子線照射により架橋する技術が開示されている。 Further, Patent Document 4 discloses a technique in which a foamed vinyl chloride resin layer is formed with a non-foamed resin layer between layers to increase the average degree of polymerization of the resin in the surface layer, and the surface layer is crosslinked by electron beam irradiation. Yes.
さらに、特許文献５には表面強度を向上させるために、シリコーン系樹脂からなる表面処理層を形成し易滑性能を付与する技術が開示されている。 Further, Patent Document 5 discloses a technique for providing a slippery performance by forming a surface treatment layer made of a silicone resin in order to improve the surface strength.
しかし、特許文献１や３では塩化ビニル樹脂層を多層とするため、さらに特許文献４では電子線照射工程が必要になり、生産性が悪くなるという問題がある。また、特許文献２では満足のゆく外観意匠性を得ることが困難であるという問題点がある。 However, in Patent Documents 1 and 3, since the vinyl chloride resin layer is a multi-layer, Patent Document 4 further requires an electron beam irradiation process, resulting in poor productivity. Further, Patent Document 2 has a problem that it is difficult to obtain a satisfactory appearance design.
さらに、外観意匠性に優れ且つ難燃性、不陸隠蔽性、表面強度すべてを満足する壁紙の要求にこたえるものは見出せていない。 Furthermore, it has not been found that meets the demand for wallpaper that is excellent in appearance design and satisfies all of flame retardancy, non-land concealment, and surface strength.
壁紙の難燃性は従来、難燃剤の添加によって難燃性能を付与してきたが、現在の壁紙に要求される難燃性（ＩＳＯ５６６０規定）は強制燃焼時の発熱量が問題とされる。強制燃焼時の発熱量はポリ塩化ビニル樹脂層の質量と高い相関があり、難燃性を満足するためにはポリ塩化ビニル樹脂層の質量をある範囲に限定せざるを得ない。 Conventionally, the flame retardancy of wallpaper has been imparted with flame retardancy by the addition of a flame retardant. However, the flame retardancy required by current wallpaper (ISO 5660 regulations) is a problem of the amount of heat generated during forced combustion. The amount of heat generated during forced combustion has a high correlation with the mass of the polyvinyl chloride resin layer, and the mass of the polyvinyl chloride resin layer must be limited to a certain range in order to satisfy flame retardancy.
現在、壁紙に要求される表面強度は、壁紙工業会「表面強化性能規定」に基づく測定により評価される。この評価に用いられる摩擦子は金属製の爪のような形状であり極めて過酷な評価である。 Currently, the surface strength required for wallpaper is evaluated by measurement based on the “Surface Strengthening Performance Regulations” of the Wallpaper Industry Association. The friction element used for this evaluation has a shape like a metal nail and is extremely severe evaluation.
外観意匠性および不陸隠蔽性を確保するためには、ポリ塩化ビニル樹脂層に厚さが必要となる。上記難燃性を確保するポリ塩化ビニル樹脂層の質量の範囲で、外観意匠性および不陸隠蔽性を満足しさらに表面強度にも優れた壁紙の必要性が高まりつつある。 In order to ensure the appearance design and the uneven surface concealing property, the polyvinyl chloride resin layer needs to have a thickness. In the mass range of the polyvinyl chloride resin layer that ensures the flame retardancy, the need for a wallpaper that satisfies the appearance design and non-land concealment properties and also has excellent surface strength is increasing.
本発明の目的は、前記従来の問題を解決し、難燃性を確保するポリ塩化ビニル樹脂層の質量の範囲で、外観意匠性に優れ且つ不陸隠蔽性、表面強度すべてを満足し、生産性にも優れた壁紙を提供することにある。 The object of the present invention is to solve the above-mentioned conventional problems, and within the mass range of the polyvinyl chloride resin layer to ensure flame retardancy, is excellent in appearance design and satisfies all non-land concealment and surface strength, and is produced. The purpose is to provide wallpaper that is also excellent in nature.
本発明者らは、上記の問題点に関し鋭意検討した結果、特定の平均重合度を有するポリ塩化ビニル樹脂に添加剤として発泡剤および充填剤を特定量添加し、ポリ塩化ビニル樹脂層の付着量を制御すること、および特定の表面処理を施すことにより目的を達成することが出来ることを見出し、本発明を完成するに至った。特に、シリコーン系エマルジョンからなる表面処理層は、その表面に良好な滑性を付与するが、ポリ塩化ビニル樹脂層を構成するポリ塩化ビニル樹脂の平均重合度により、その効果に差が認められ、その結果として前記表面強度にも影響することを見出したのである。 As a result of intensive studies on the above problems, the present inventors added a specific amount of a foaming agent and a filler as additives to a polyvinyl chloride resin having a specific average degree of polymerization, and the amount of adhesion of the polyvinyl chloride resin layer It has been found that the object can be achieved by controlling the above and by applying a specific surface treatment, and the present invention has been completed. In particular, the surface treatment layer composed of a silicone-based emulsion imparts good lubricity to the surface, but due to the average degree of polymerization of the polyvinyl chloride resin constituting the polyvinyl chloride resin layer, a difference in the effect is recognized, As a result, it has been found that the surface strength is also affected.
すなわち、
（１） 基材上に形成されたポリ塩化ビニル樹脂層を含む壁紙であって、前記ポリ塩化ビニル樹脂層は、発泡剤を含有したポリ塩化ビニル樹脂を主成分とする発泡樹脂組成物からなり、さらにポリ塩化ビニル樹脂層のおもて側に表面保護層を有することを特徴とする壁紙。
（２）前記ポリ塩化ビニル樹脂が平均重合度９００〜１２００である上記項１に記載の壁紙。
（３）前記ポリ塩化ビニル樹脂層の質量が１８０〜２４０ｇ／ｍ２である上記項２に記載の壁紙。
（４）前記発泡剤がポリ塩化ビニル樹脂１００質量部に対し２〜４質量部を含む上記項１〜３に記載の壁紙。
（５）厚さが０．５〜１．２ｍｍである上記項１〜４に記載の壁紙。
（６）前記表面保護層がシリコーン系エマルジョンを塗布してなる表面処理層である上記項１〜５に記載の壁紙。That is,
(1) A wallpaper including a polyvinyl chloride resin layer formed on a substrate, wherein the polyvinyl chloride resin layer is made of a foamed resin composition mainly composed of a polyvinyl chloride resin containing a foaming agent. The wallpaper further comprises a surface protective layer on the front side of the polyvinyl chloride resin layer.
(2) The wallpaper according to item 1, wherein the polyvinyl chloride resin has an average degree of polymerization of 900 to 1200.
(3) The wallpaper according to Item 2, wherein the polyvinyl chloride resin layer has a mass of 180 to 240 g / m 2 .
(4) The wallpaper of said claim | item 1-3 in which the said foaming agent contains 2-4 mass parts with respect to 100 mass parts of polyvinyl chloride resin.
(5) The wallpaper according to any one of Items 1 to 4, wherein the wall thickness is 0.5 to 1.2 mm.
(6) The wallpaper according to any one of Items 1 to 5, wherein the surface protective layer is a surface treatment layer formed by applying a silicone emulsion.
本発明による発泡壁紙は、壁紙としての外観意匠性は勿論、不陸隠蔽性、表面強度、難燃性に優れたものである。特に、下地の壁面の凹凸が懸念されるリフォーム（貼り替え）用途として有用である。また、従来のものに比べ生産性にも優れた壁紙である。 The foamed wallpaper according to the present invention is excellent not only in appearance design as wallpaper but also in non-land concealment, surface strength, and flame retardancy. In particular, it is useful as a remodeling (replacement) application in which the unevenness of the underlying wall surface is a concern. In addition, the wallpaper is more productive than conventional ones.
以下本発明の壁紙について詳細に説明する。 Hereinafter, the wallpaper of the present invention will be described in detail.
本発明に用いる基材としては特に限定されず、従来から壁紙の基材として使用されている素材であればよい。例えば、紙、織物、編物、不織布、又はこれらの複合素材を使用してもよい。 The base material used in the present invention is not particularly limited as long as it is a material conventionally used as a base material for wallpaper. For example, paper, woven fabric, knitted fabric, non-woven fabric, or a composite material thereof may be used.
前記基材の厚さは、特に限定されないが、０．０９〜０．１５ｍｍであることが好ましい。また前記基材の質量としては５０〜１００ｇ／ｍ２、好ましくは６０〜８０ｇ／ｍ２であるが、これに限定されるものではない。The thickness of the substrate is not particularly limited, but is preferably 0.09 to 0.15 mm. The mass of the substrate is 50 to 100 g / m 2 , preferably 60 to 80 g / m 2 , but is not limited thereto.
ポリ塩化ビニル樹脂層は、発泡剤を含有するポリ塩化ビニル樹脂を主成分とする発泡樹脂組成物からなる。発泡樹脂組成物には、その他に可塑剤、安定剤、充填剤、着色剤およびその他の添加剤が配合される。 A polyvinyl chloride resin layer consists of a foamed resin composition which has as a main component the polyvinyl chloride resin containing a foaming agent. In addition, a plasticizer, a stabilizer, a filler, a colorant, and other additives are blended in the foamed resin composition.
前記ポリ塩化ビニル樹脂は、その平均重合度が９００〜１２００が好ましい。平均重合度が９００未満の場合はポリ塩化ビニル樹脂層の表面強度が低くなり、１２００を越えると発泡性が劣り外観意匠を得るための厚さが得られないと言った問題点がある。 The polyvinyl chloride resin preferably has an average degree of polymerization of 900 to 1200. When the average degree of polymerization is less than 900, the surface strength of the polyvinyl chloride resin layer is low, and when it exceeds 1200, there is a problem that foamability is poor and a thickness for obtaining an appearance design cannot be obtained.
本発明に用いる前記発泡剤としては、アゾジカルボンアミド等のアゾ系、オキシビスベンゼンスルホニルヒドラジド等のヒドラジド系などの熱分解型発泡剤が好ましく、単体若しくは併用して使用することができる。発泡剤の含有量は、前記ポリ塩化ビニル樹脂１００質量部に対し２〜４質量部が好ましい。２質量部未満では発泡倍率が不足し外観意匠性が低下し、一方４質量部を越えると発泡による気泡（セル）が大きくなりポリ塩化ビニル樹脂層の表面強度が低下するという問題がある。 The foaming agent used in the present invention is preferably a thermal decomposition type foaming agent such as an azo type such as azodicarbonamide and a hydrazide type such as oxybisbenzenesulfonyl hydrazide, which can be used alone or in combination. The content of the foaming agent is preferably 2 to 4 parts by mass with respect to 100 parts by mass of the polyvinyl chloride resin. If it is less than 2 parts by mass, the expansion ratio is insufficient and the appearance design is reduced. On the other hand, if it exceeds 4 parts by mass, bubbles (cells) due to foaming increase and the surface strength of the polyvinyl chloride resin layer decreases.
本発明に用いる前記充填剤としては、一般に壁紙に用いられるものであれば特に限定されず、例えば炭酸カルシウム、水酸化アルミニウム、タルク、シリカ等を用いることができる。これらは単独で使用してもよく、２種以上を併用してもよい。充填剤の含有量は発泡性を考慮し、前記ポリ塩化ビニル樹脂１００質量部に対し４０質量部以下とすることが好ましく、さらには２０質量部以下とすることがより好ましい。 The filler used in the present invention is not particularly limited as long as it is generally used for wallpaper. For example, calcium carbonate, aluminum hydroxide, talc, silica and the like can be used. These may be used alone or in combination of two or more. The content of the filler is preferably 40 parts by mass or less, more preferably 20 parts by mass or less, with respect to 100 parts by mass of the polyvinyl chloride resin in consideration of foamability.
本発明に用いる前記可塑剤は、一般に用いられるものであれば特に限定されず、例えばジ−２−エチルヘキシルフタレートなどのフタル酸エステルの他アジピン酸エステル、リン酸エステル等を用いることができる。これらは単独で使用してもよく、２種以上を併用してもよい。前記可塑剤の含有量は、特に限定されないが、前記ポリ塩化ビニル樹脂１００質量部に対し３０〜５０質量部であることが好ましい。 The plasticizer used in the present invention is not particularly limited as long as it is generally used. For example, an adipic acid ester, a phosphoric acid ester, or the like can be used in addition to a phthalic acid ester such as di-2-ethylhexyl phthalate. These may be used alone or in combination of two or more. Although content of the said plasticizer is not specifically limited, It is preferable that it is 30-50 mass parts with respect to 100 mass parts of said polyvinyl chloride resins.
本発明に用いる前記安定剤は、一般に用いられるものであれば特に限定されず、例えばバリウム亜鉛系、カルシウム亜鉛系、有機燐系化合物、有機錫系化合物等を用いることができる。これらは単独で使用してもよく、２種以上を併用してもよい。前記安定剤の含有量は、特に限定されないが、前記ポリ塩化ビニル樹脂１００質量部に対し１〜４質量部であることが好ましい。 The stabilizer used in the present invention is not particularly limited as long as it is generally used. For example, barium zinc-based, calcium zinc-based, organic phosphorus-based compounds, organic tin-based compounds, and the like can be used. These may be used alone or in combination of two or more. Although content of the said stabilizer is not specifically limited, It is preferable that it is 1-4 mass parts with respect to 100 mass parts of said polyvinyl chloride resins.
本発明の発泡樹脂組成物の調整方法は特に限定されず、ディゾルバーによる調整等、種々の方法を用いることができる。 The method for adjusting the foamed resin composition of the present invention is not particularly limited, and various methods such as adjustment with a dissolver can be used.
基材上に前記ポリ塩化ビニル樹脂層を形成する方法は特に限定されず、例えば、ナイフコーター、コンマコーター、リバースコーター、ロータリースクリーン等を使用して、発泡樹脂組成物を塗工し、前記発泡剤が分解発泡しない条件で乾燥ゲル化することにより塗膜とし、その後に前記発泡剤が分解発泡する条件で加熱することにより形成される。 The method for forming the polyvinyl chloride resin layer on the substrate is not particularly limited. For example, the foamed resin composition is applied using a knife coater, comma coater, reverse coater, rotary screen, etc. A coating film is formed by dry gelation under a condition in which the agent is not decomposed and foamed, and then the film is formed by heating under a condition in which the foaming agent is decomposed and foamed.
前記ポリ塩化ビニル樹脂層の質量は１８０〜２４０ｇ／ｍ２であることが好ましい。１８０ｇ／ｍ２未満の場合は外観意匠性、不陸隠蔽性が劣り、２４０ｇ／ｍ２を越えると難燃性が低下すると言った問題がある。The mass of the polyvinyl chloride resin layer is preferably 180 to 240 g / m 2 . When it is less than 180 g / m 2 , there is a problem that the appearance design property and the non-land concealment property are inferior, and when it exceeds 240 g / m 2 , the flame retardancy is lowered.
本発明の壁紙は、前記ポリ塩化ビニル樹脂層のおもて側に必要に応じて絵柄模様層を有してもよい。絵柄模様層は壁紙に意匠性を付与し、形成方法としてはグラビア印刷、フレキソ印刷等が挙げられる。印刷インキとしては、着色剤、接着剤樹脂、溶媒を含む印刷インキが使用できる。 The wallpaper of the present invention may have a pattern layer on the front side of the polyvinyl chloride resin layer as necessary. The pattern layer imparts design properties to the wallpaper, and examples of the formation method include gravure printing and flexographic printing. As the printing ink, a printing ink containing a colorant, an adhesive resin, and a solvent can be used.
本発明では前記ポリ塩化ビニル樹脂層のおもて側、絵柄模様層を有する場合にはそのおもて側に表面保護層が形成される。表面保護層は、シリコーン系エマルジョンを塗布してなる表面処理層であることが好ましく、その形成方法としては例えばグラビア印刷、スクリーン塗布等の公知の技術を用いることができる。表面保護層の厚さとしては１〜５μｍ、付着量は０．５〜２．５ｇ／ｍ２が好ましい。In the present invention, a surface protective layer is formed on the front side of the polyvinyl chloride resin layer, if it has a pattern layer. The surface protective layer is preferably a surface treatment layer formed by applying a silicone-based emulsion, and a known technique such as gravure printing or screen coating can be used as a method for forming the surface protective layer. The thickness of the surface protective layer is preferably 1 to 5 μm, and the adhesion amount is preferably 0.5 to 2.5 g / m 2 .
前記表面保護層はポリプロピレンやエチレン−ビニルアルコール共重合体からなるフィルムにより形成することも出来る。形成方法はエンボス同時ラミネート等公知の技術を使用することができる。 The surface protective layer can also be formed of a film made of polypropylene or ethylene-vinyl alcohol copolymer. As a forming method, a known technique such as embossing simultaneous lamination can be used.
前記表面処理層を形成することにより、壁紙表面に滑性が付与されその効果により表面強度が向上するといった効果が得られる。 By forming the surface treatment layer, it is possible to obtain an effect that the surface of the wallpaper is provided with lubricity and the surface strength is improved by the effect.
本発明の壁紙は、そのおもて面に凹凸模様を有していてもよい。凹凸模様を設ける方法としては、エンボスロール等の公知の手段により実施することができる。 The wallpaper of the present invention may have an uneven pattern on its front surface. As a method of providing an uneven pattern, it can be carried out by a known means such as an emboss roll.
本発明の壁紙の厚さ（基材を含む）は、０．５〜１．２ｍｍが好ましい。０．５ｍｍ未満であると、不陸隠蔽性が劣り、壁紙を施工した時に下地壁面の凹凸が壁紙上に現れる。他方１．２ｍｍを越えると壁紙が厚くなり過ぎ施工が困難になるという問題がある。 The thickness (including the base material) of the wallpaper of the present invention is preferably 0.5 to 1.2 mm. If the thickness is less than 0.5 mm, the uneven concealment property is inferior, and the unevenness of the underlying wall surface appears on the wallpaper when the wallpaper is applied. On the other hand, if the thickness exceeds 1.2 mm, the wall paper becomes too thick and the construction becomes difficult.
以下に実施例及び比較例を示し、本発明をより具体的に説明する。但し、本発明は実施例のみに限定されるものではない。なお、実施例及び比較例で用いた化合物ならびに原材料を下記表１に示す。 Hereinafter, the present invention will be described in more detail with reference to examples and comparative examples. However, the present invention is not limited to the examples. The compounds and raw materials used in Examples and Comparative Examples are shown in Table 1 below.
実施例１〜７
壁紙用基材として質量６５ｇ／ｍ２、厚さ０．１１ｍｍの一般紙（中越パルプ工業（株）製：「ＣＰ−６６５ＰＤ」）を用いた。下記表２に実施例で用いた配合成分及び配合割合を示す。表２に示す配合成分を表２に示す配合割合で配合し、ディゾルバーにより調整し発泡樹脂組成物を得た。次に、基材上に、ナイフコーターを用い、上記発泡樹脂組成物を表２に示す付着量で塗工し、１３０℃で６０秒の加熱により塗膜化した。さらに、そのおもて側に下記表３からなる表面処理剤を固形分付着量が１．１ｇ／ｍ２となるようにグラビア印刷をおこない、１３０℃で６０秒の加熱で乾燥した。その後、２２５℃のギアオーブンで４５秒間加熱発泡させた。発泡させたシートを、表面温度が１６０℃になるように加熱し、深度０．７ｍｍのエンボスロールを用いてエンボス加工を行い、本発明の壁紙を得た。 Examples 1-7
A general paper having a mass of 65 g / m 2 and a thickness of 0.11 mm (manufactured by Chuetsu Pulp Co., Ltd .: “CP-665PD”) was used as a wallpaper base material. Table 2 below shows the blending components and blending ratios used in the examples. The blending components shown in Table 2 were blended in the blending ratios shown in Table 2, and adjusted with a dissolver to obtain a foamed resin composition. Next, the above foamed resin composition was applied onto the base material using a knife coater with an adhesion amount shown in Table 2, and a coating film was formed by heating at 130 ° C. for 60 seconds. Furthermore, the surface treatment agent shown in Table 3 below was subjected to gravure printing on the front side so that the solid content adhesion amount was 1.1 g / m 2 and dried by heating at 130 ° C. for 60 seconds. Thereafter, foaming was performed by heating in a gear oven at 225 ° C. for 45 seconds. The foamed sheet was heated so that the surface temperature was 160 ° C. and embossed using an embossing roll having a depth of 0.7 mm to obtain the wallpaper of the present invention.
比較例１〜８
壁紙用基材として質量６５ｇ／ｍ２、厚さ０．１１ｍｍの一般紙（中越パルプ工業（株）製：「ＣＰ−６６５ＰＤ」）を用いた。下記表４に比較例で用いた配合成分及び配合割合を示す。表４に示す配合成分を表４に示す配合割合で配合し、ディゾルバーにより調整し発泡樹脂組成物を得た。次に、基材上に、ナイフコーターを用い、上記発泡樹脂組成物を表４に示す付着量で塗工し、１３０℃で６０秒の加熱により塗膜化した。さらに、そのおもて側に上記表３からなる表面処理剤を固形分付着量が１．３ｇ／ｍ２となるようにグラビア印刷をおこない、１３０℃で６０秒の加熱で乾燥した。その後、２２５℃のギアオーブンで４５秒間加熱発泡させた。発泡させたシートを、表面温度が１６０℃になるように加熱し、深度０．７ｍｍのエンボスロールを用いてエンボス加工を行い本発明の壁紙を得た。 Comparative Examples 1-8
A general paper having a mass of 65 g / m 2 and a thickness of 0.11 mm (manufactured by Chuetsu Pulp Co., Ltd .: “CP-665PD”) was used as a wallpaper base material. Table 4 below shows the blending components and blending ratios used in the comparative examples. The blending components shown in Table 4 were blended in the blending ratios shown in Table 4, and adjusted with a dissolver to obtain a foamed resin composition. Next, the foamed resin composition was coated on the base material using a knife coater with the adhesion amount shown in Table 4, and formed into a coating film by heating at 130 ° C. for 60 seconds. Further, the surface treatment agent shown in Table 3 was subjected to gravure printing on the front side so that the solid content adhesion amount was 1.3 g / m 2 and dried by heating at 130 ° C. for 60 seconds. Thereafter, foaming was performed by heating in a gear oven at 225 ° C. for 45 seconds. The foamed sheet was heated so that the surface temperature was 160 ° C. and embossed using an embossing roll having a depth of 0.7 mm to obtain the wallpaper of the present invention.
実施例１〜７ならびに比較例１〜８について、以下の評価を行った。その結果を表５ならびに表６に示す。 The following evaluation was performed about Examples 1-7 and Comparative Examples 1-8. The results are shown in Table 5 and Table 6.
表中の評価方法
［発泡厚さ］
ダイヤルゲージを用い、発泡後エンボス加工前の厚さ（基材を含む）を測定。Evaluation method in the table [foam thickness]
Measure the thickness (including base material) after foaming and before embossing using a dial gauge.
［製品厚さ］
ダイヤルゲージを用い、エンボス後の厚さ（基材を含む）を測定。[Product thickness]
Using a dial gauge, measure the thickness after embossing (including the base material).
［表面強度］
壁紙工業会の「表面強化性能規定」に基づいて、壁紙の表面強度を測定した。幅２５ｍｍ、長さ２５０ｍｍの試験片を採取し、温度２０±２℃、湿度６５±２０％の条件で２４時間放置後、ＪＩＳ−Ｌ−０８４９で規定する摩擦試験機ＩＩ形を用い、同会指定の摩擦子（荷重２００ｇの金属製爪）を取付け、試験片上を５回往復させて表面の状態を目視により観察し、以下の基準で評価を行った。４級以上が合格と認定される。
５級 変化なし。
４級 表面に少し変化あり。
３級 表面が破けて見える。
２級 表面が破けて壁紙の基材がやや見える（長さ１ｃｍ未満）。
１級 表面が破けて壁紙の基材が見える（長さ１ｃｍ以上）。[Surface strength]
The surface strength of the wallpaper was measured based on the “Surface Strengthening Performance Regulation” of the Wallpaper Industry Association. A test piece having a width of 25 mm and a length of 250 mm was collected and allowed to stand for 24 hours under the conditions of a temperature of 20 ± 2 ° C. and a humidity of 65 ± 20%. A specified friction element (a metal nail having a load of 200 g) was attached, the test piece was reciprocated five times, the surface state was observed visually, and evaluation was performed according to the following criteria. Grade 4 or higher is certified as passing.
Grade 5 No change.
Grade 4 There is a slight change on the surface.
Level 3 The surface appears torn.
Second grade The surface is broken and the base material of wallpaper is slightly visible (less than 1 cm in length).
Grade 1 The surface is broken and the base material of the wallpaper is visible (length 1 cm or more).
［外観意匠性］
目視により、エンボス形状を忠実に写し取っているかを以下の基準で判断した。
○ エンボス形状が微細部分も含め完全に再現されている。
△ エンボス形状が再現はされているが微細部分の再現が不完全である。
× エンボス形状がほとんど再現されていない。[Appearance design]
Whether the embossed shape was faithfully copied by visual observation was judged according to the following criteria.
○ The embossed shape has been completely reproduced, including fine parts.
△ The embossed shape has been reproduced, but the reproduction of fine parts is incomplete.
× Embossed shape is hardly reproduced.
［不陸隠蔽性］
壁紙の施工基材である石膏ボードに、厚さが０．１ｍｍ、直径が２０ｍｍである粘着性の丸ラベルを１〜３枚重ねて貼り付けた後、丸ラベルの上に壁紙を施工した。４８時間後、斜光にてラベルの形状を目視で観察し、不陸隠蔽性を以下の基準で評価した。
Ａ 丸ラベルが３枚の場合も見えない。
Ｂ 丸ラベルが３枚の場合はやや見えるが１〜２枚の場合は見えない。
Ｃ 丸ラベルが３枚の場合は見え、２枚の場合はやや見えるが、１枚の場合は見え ない。
Ｄ 丸ラベルが２枚の場合は見え、１枚の場合はやや見える。
Ｅ 丸ラベルが１枚の場合も見える。[Non-land concealment]
After 1 to 3 sticky round labels having a thickness of 0.1 mm and a diameter of 20 mm were laminated and pasted on a gypsum board which is a base material for wallpaper construction, wallpaper was constructed on the round label. After 48 hours, the shape of the label was visually observed under oblique light, and the non-land coverability was evaluated according to the following criteria.
A It is not visible when there are three round labels.
B When the number of round labels is 3, it is slightly visible, but when it is 1-2, it is not visible.
C It is visible when there are three round labels, but it is slightly visible when it is two, but it is not visible when it is one.
D Visible if there are two round labels, but slightly visible if one.
E Can be seen when there is only one round label.
［難燃性］
ＩＳＯ５６６０発熱性試験方法（コーンカロリー計法）に準拠した方法で、１０分間加熱し、以下の条件をすべて満たす場合を合格とした。
（１）加熱開始後１０分間の総発熱量が、８ＭＪ／ｍ２以下である。
（２）加熱開始後１０分間、防火上有害な裏面まで貫通する亀裂及び穴がない。
（３）加熱開始後１０分間、最高発熱速度が１０秒継続して２００Ｋｗ／ｍ２を越え ない。[Flame retardance]
A method based on the ISO 5660 exothermic test method (corn calorie meter method) was heated for 10 minutes, and the case where all of the following conditions were satisfied was regarded as acceptable.
(1) The total calorific value for 10 minutes after the start of heating is 8 MJ / m 2 or less.
(2) There are no cracks and holes penetrating to the back side, which is harmful to fire prevention, for 10 minutes after the start of heating.
(3) The maximum heat generation rate continues for 10 seconds for 10 minutes after the start of heating and does not exceed 200 Kw / m 2 .
表５、表６の結果より、本発明品は難燃性を維持しつつ、外観意匠性、不陸隠蔽性に優れ、さらには壁紙工業会「表面強化性能規定」に基づく表面強度を満足する壁紙であることが分かる。さらに、本発明品は構成が簡単であり生産性にも優れた壁紙である。 From the results of Tables 5 and 6, the product of the present invention is excellent in appearance design and non-land surface concealment properties while maintaining flame retardancy, and further satisfies the surface strength based on “Surface Strengthening Performance Regulations” of the Wallpaper Industry Association. You can see that it is wallpaper. Furthermore, the product of the present invention is a wallpaper having a simple configuration and excellent productivity.
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| JP2017071884A (en) * | 2015-10-09 | 2017-04-13 | 凸版印刷株式会社 | wallpaper |
| JP2017075432A (en) * | 2015-10-16 | 2017-04-20 | 凸版印刷株式会社 | Wall paper |
| JP2017145530A (en) * | 2016-02-17 | 2017-08-24 | 凸版印刷株式会社 | Manufacturing method of wallpaper having nonflammability and wallpaper having nonflammability |
| JP2019049086A (en) * | 2017-09-07 | 2019-03-28 | 凸版印刷株式会社 | Foamed wallpaper original paper, foamed wallpaper, and method of manufacturing foamed wallpaper |
| JP2019085674A (en) * | 2017-11-07 | 2019-06-06 | 凸版印刷株式会社 | Foamed wall paper, method for producing foamed wall paper |
| JP2019142202A (en) * | 2018-02-23 | 2019-08-29 | 大日本印刷株式会社 | Foam laminate sheet |
| KR102057368B1 (en) | 2016-11-29 | 2019-12-18 | (주)엘지하우시스 | Wallpaper for using electronic ink |
| JP7477258B2 (en) | 2019-03-27 | 2024-05-01 | ロンシール工業株式会社 | wallpaper |
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| JP2017075432A (en) * | 2015-10-16 | 2017-04-20 | 凸版印刷株式会社 | Wall paper |
| JP2017145530A (en) * | 2016-02-17 | 2017-08-24 | 凸版印刷株式会社 | Manufacturing method of wallpaper having nonflammability and wallpaper having nonflammability |
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