JP4779367B2 - wallpaper - Google Patents
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- JP4779367B2 JP4779367B2 JP2005010038A JP2005010038A JP4779367B2 JP 4779367 B2 JP4779367 B2 JP 4779367B2 JP 2005010038 A JP2005010038 A JP 2005010038A JP 2005010038 A JP2005010038 A JP 2005010038A JP 4779367 B2 JP4779367 B2 JP 4779367B2
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- 239000000835 fiber Substances 0.000 claims description 53
- 229920005989 resin Polymers 0.000 claims description 41
- 239000011347 resin Substances 0.000 claims description 41
- 229920003023 plastic Polymers 0.000 claims description 21
- 239000004033 plastic Substances 0.000 claims description 21
- 239000000463 material Substances 0.000 claims description 20
- -1 polyethylene Polymers 0.000 claims description 14
- 239000000758 substrate Substances 0.000 claims description 12
- 239000004698 Polyethylene Substances 0.000 claims description 10
- 229920000573 polyethylene Polymers 0.000 claims description 10
- 229920000728 polyester Polymers 0.000 claims description 9
- 239000004800 polyvinyl chloride Substances 0.000 claims description 8
- 229920000915 polyvinyl chloride Polymers 0.000 claims description 8
- 239000004743 Polypropylene Substances 0.000 claims description 4
- 239000000839 emulsion Substances 0.000 claims description 4
- 238000002156 mixing Methods 0.000 claims description 4
- 229920005672 polyolefin resin Polymers 0.000 claims description 4
- 229920001155 polypropylene Polymers 0.000 claims description 4
- 229920000297 Rayon Polymers 0.000 claims description 3
- 229920002978 Vinylon Polymers 0.000 claims description 3
- 239000002964 rayon Substances 0.000 claims description 3
- 239000010410 layer Substances 0.000 description 62
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 13
- 238000010521 absorption reaction Methods 0.000 description 10
- 238000011156 evaluation Methods 0.000 description 8
- 238000000034 method Methods 0.000 description 8
- 239000011342 resin composition Substances 0.000 description 8
- 239000000945 filler Substances 0.000 description 6
- 230000032798 delamination Effects 0.000 description 5
- 238000005187 foaming Methods 0.000 description 5
- 239000003795 chemical substances by application Substances 0.000 description 4
- 230000008602 contraction Effects 0.000 description 4
- 238000004513 sizing Methods 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 229920001577 copolymer Polymers 0.000 description 3
- 239000011229 interlayer Substances 0.000 description 3
- 239000000203 mixture Substances 0.000 description 3
- 238000012360 testing method Methods 0.000 description 3
- WNROFYMDJYEPJX-UHFFFAOYSA-K aluminium hydroxide Chemical compound [OH-].[OH-].[OH-].[Al+3] WNROFYMDJYEPJX-UHFFFAOYSA-K 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000001125 extrusion Methods 0.000 description 2
- 239000004088 foaming agent Substances 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- 229920001083 polybutene Polymers 0.000 description 2
- 239000004711 α-olefin Substances 0.000 description 2
- 239000004156 Azodicarbonamide Substances 0.000 description 1
- 229920000089 Cyclic olefin copolymer Polymers 0.000 description 1
- 229920002472 Starch Polymers 0.000 description 1
- XTXRWKRVRITETP-UHFFFAOYSA-N Vinyl acetate Chemical compound CC(=O)OC=C XTXRWKRVRITETP-UHFFFAOYSA-N 0.000 description 1
- BZHJMEDXRYGGRV-UHFFFAOYSA-N Vinyl chloride Chemical compound ClC=C BZHJMEDXRYGGRV-UHFFFAOYSA-N 0.000 description 1
- 125000005396 acrylic acid ester group Chemical group 0.000 description 1
- 238000004220 aggregation Methods 0.000 description 1
- 230000002776 aggregation Effects 0.000 description 1
- 238000007605 air drying Methods 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
- 239000011248 coating agent Substances 0.000 description 1
- 238000003795 desorption Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- HBGGXOJOCNVPFY-UHFFFAOYSA-N diisononyl phthalate Chemical compound CC(C)CCCCCCOC(=O)C1=CC=CC=C1C(=O)OCCCCCCC(C)C HBGGXOJOCNVPFY-UHFFFAOYSA-N 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 239000005038 ethylene vinyl acetate Substances 0.000 description 1
- 229920006244 ethylene-ethyl acrylate Polymers 0.000 description 1
- 239000006260 foam Substances 0.000 description 1
- 238000007646 gravure printing Methods 0.000 description 1
- 238000009499 grossing Methods 0.000 description 1
- 229920000554 ionomer Polymers 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 239000004014 plasticizer Substances 0.000 description 1
- 229920001195 polyisoprene Polymers 0.000 description 1
- 229920001296 polysiloxane Polymers 0.000 description 1
- 229920002635 polyurethane Polymers 0.000 description 1
- 239000004814 polyurethane Substances 0.000 description 1
- 238000012545 processing Methods 0.000 description 1
- 239000007921 spray Substances 0.000 description 1
- 239000008107 starch Substances 0.000 description 1
- 235000019698 starch Nutrition 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
Images
Landscapes
- Laminated Bodies (AREA)
- Paper (AREA)
- Synthetic Leather, Interior Materials Or Flexible Sheet Materials (AREA)
Description
本発明は、シート状基材上に少なくとも発泡樹脂層設けられている壁紙、特にでんぷん糊等により壁部材の表面にその端部を付き合わせて貼り付けた場合にその継ぎ目部分において目隙きや突き上げが生じにくいように寸法安定性を高めると共に、貼り替え時にはそのシート状基材の層間部分で均等な厚さでかつ容易に分離して剥離できるようにしたことを特徴とする壁紙に関する。 The present invention is a wallpaper in which at least a foamed resin layer is provided on a sheet-like base material, particularly when the end portion is attached to the surface of a wall member with a starch paste or the like, and a gap is formed at the joint portion. The present invention relates to a wallpaper characterized in that the dimensional stability is improved so that the push-up is less likely to occur, and at the time of reattachment, the interlayer part of the sheet-like base material has a uniform thickness and can be easily separated and peeled off.
従来から、植物繊維やその他の繊維等からなる紙系のシート状基材の表面に、水酸化アルミニウム等の充填剤を配合した発泡性ポリ塩化ビニル樹脂組成物からなる発泡樹脂層を設けた壁紙が知られている。 Conventionally, a wallpaper in which a foamed resin layer made of a foamable polyvinyl chloride resin composition in which a filler such as aluminum hydroxide is blended is provided on the surface of a paper-based sheet-like base material made of plant fibers or other fibers. It has been known.
このような構成の壁紙は、水分の影響により伸縮し、寸法安定性が悪い。また、貼り替え時に壁部材から剥がす際、きれいに剥がすことが難しく、新規の壁紙を貼る前には下地処理に多大な時間を要することがある。 The wallpaper having such a configuration expands and contracts due to the influence of moisture and has poor dimensional stability. Moreover, when peeling from a wall member at the time of replacement | exchange, it is difficult to peel off neatly, and a lot of time may be required for ground processing before applying a new wallpaper.
本発明は、前記の課題を解決すべくなされたものであり、その課題とするところは、吸湿や吸収等に伴う伸縮や反りが少なく、寸法安定性に優れており、しかも、貼り替え時にシート状基材（裏打紙）の層間で均等な厚さで分離して剥離でき、壁部材に対して下地処理をすることなく新しい壁紙を簡単にかつ綺麗に貼ることができるようにした壁紙の提供を目的とする。 The present invention has been made in order to solve the above-mentioned problems, and the problem is that there is little expansion / contraction and warpage associated with moisture absorption and absorption, excellent dimensional stability, and a sheet when reattached. Wall paper that can be separated and peeled with a uniform thickness between the layers of a sheet-like substrate (backing paper), and that allows new wall paper to be easily and neatly applied to the wall member without the need for surface treatment. With the goal.
本発明はこのような課題を解決するためになされたものであって、請求項１に記載の発明は、シート状基材上に少なくとも発泡樹脂層が設けられている壁紙であって、シート状基材は、プラスチック繊維と天然パルプのそれぞれが４０〜７０重量％と６０〜３０重量％の割合で絡み合わせて膠着されてなる混抄中層を、プラスチック繊維と天然パルプのそれぞれが１５〜３０重量％と８５〜７０重量％の割合で絡み合わせて膠着されてなる混抄上層と混抄下層のそれぞれで挟みつけて抄造されてなる三層構成の混抄紙であり、前記シート状基材中のプラスチック繊維の混合割合が３５重量％以上であることを特徴とする壁紙である。
The present invention has been made to solve such problems, and the invention according to claim 1 is a wallpaper in which at least a foamed resin layer is provided on a sheet-like base material, The base material is a mixed middle layer in which plastic fibers and natural pulp are entangled and glued at a ratio of 40 to 70% by weight and 60 to 30% by weight, respectively, and each of plastic fiber and natural pulp is 15 to 30% by weight. When 85 to 70 wt% intertwined in a proportion of the papermaking with sandwiched in each混抄upper and混抄underlayer formed by sticking with mixed paper der three-layer structure formed by is, plastic fibers in the base material sheet The wallpaper is characterized in that the mixing ratio of is 35% by weight or more .
さらにまた、請求項２に記載の発明は、請求項１または２に記載の壁紙において、前記シート状基材中のプラスチック繊維は、ポリエステル繊維、ポリエチレン繊維、ポリプロピレン繊維、ビニロン繊維、レーヨン繊維のいずれかであることを特徴とする。
Furthermore, the invention according to claim 2, in wallpaper according to claim 1 or 2, plastic fibers in the sheet-like base material, polyester fiber, polyethylene fiber, polypropylene fiber, vinylon fiber, either rayon fibers It is characterized by.
さらにまた、請求項３に記載の発明は、請求項１に記載の壁紙において、前記発泡樹脂層は、発泡ポリ塩化ビニル樹脂、発泡水性エマルジョン樹脂もしくは発泡ポリオレフィン系樹脂のいずれかを主体とする発泡性樹脂からなることを特徴とする。 Furthermore, the invention according to claim 3 is the wallpaper according to claim 1, wherein the foamed resin layer is a foam mainly composed of a foamed polyvinyl chloride resin, a foamed aqueous emulsion resin or a foamed polyolefin resin. It is characterized by comprising a functional resin.
本発明の壁紙は、以上のような構成であるので、吸湿や吸水等による伸縮や反りが極めて少なく、寸法安定性に優れており、しかも、貼り替え時にはシート状基材（裏打紙）の
層間で均等な厚さで分離して剥離できるため、壁部材には分離されて残ったシート状基材の一部が均等な厚みで位置するようになり、壁部材に対して平滑化処理等の下地処理をすることなく新しい壁紙をその上に簡単にかつ綺麗に貼り付けることが可能となる。
Since the wallpaper of the present invention is configured as described above, it has very little expansion and contraction or warping due to moisture absorption or water absorption, etc., and has excellent dimensional stability. Since it can be separated and peeled at a uniform thickness, a part of the sheet-like base material that has been separated and left on the wall member is positioned at a uniform thickness, and the wall member can be subjected to a smoothing process, etc. A new wallpaper can be easily and neatly pasted without any background treatment.
以下、図面を参照して本発明を詳細に説明する。図１は本発明に係る壁紙の概略の断面構造を示す説明図である。この壁紙１は、図面からも分かるように、三層構成のシート状基材２上に発泡樹脂層６が積層して設けられている。 Hereinafter, the present invention will be described in detail with reference to the drawings. FIG. 1 is an explanatory diagram showing a schematic cross-sectional structure of a wallpaper according to the present invention. As can be seen from the drawings, the wallpaper 1 is provided by laminating a foamed resin layer 6 on a sheet-like substrate 2 having a three-layer structure.
シート状基材２は、プラスチック繊維と天然パルプのそれぞれが４０〜７０重量％と６０〜３０重量％の割合で絡み合わせて膠着されてなる混抄中層４を、プラスチック繊維と天然パルプのそれぞれが１５〜３０重量％と８５〜７０重量％の割合で絡み合わせて膠着されてなる混抄上層３と混抄下層５のそれぞれで挟みつけて抄造されてなる三層構成の混抄紙である。
The sheet-like base material 2 includes a mixed
このような構成になるシート状基材２は、前述したように、吸湿や吸水等による伸縮や反りが極めて少なくなるようにすると共に、一旦壁部材に貼り付けたものを剥離する際、その層間（各混抄層の界面）で均一な厚さで容易に分離できるようにしたものであり、その構造を混抄上層３と混抄中層４と混抄下層５の三層で抄造してなる混抄紙とすることと、混抄上層３と混抄下層５のそれぞれを、プラスチック繊維と天然パルプのそれぞれが１５〜３０重量％と８５〜７０重量％の割合で絡み合わされて膠着されてなるものとし、これらの各層により挟みつけられる混抄中層４をプラスチック繊維と天然パルプのそれぞれが４０〜７０重量％と６０〜３０重量％の割合で絡み合わされて膠着されてなるものとすることにより、上記の各効果を発現できるようにしたものである。
As described above, the sheet-like base material 2 having such a configuration makes it possible to extremely reduce expansion and contraction and warpage due to moisture absorption, water absorption, etc., and when the one once attached to the wall member is peeled, the interlayer It is designed so that it can be easily separated with a uniform thickness at the (interface of each mixed paper layer), and its structure is a mixed paper made by three layers of the mixed paper upper layer 3, the mixed
すなわち、混抄上層３と混抄下層５のそれぞれを構成するプラスチック繊維と天然パルプの絡み合わせにおいて、プラスチック繊維を１５重量％から３０重量％とすることにより、毛羽立ちが少なくなり、平滑性も良好になる。また、例えば混抄中層におけるプラスチック繊維の割合が４０重量％であるような場合でも、シート状基材全体の占める天然パルプの割合が相対的に多くなることにより、層間強度が適度の値を示すようになって（層間剥離強度としては７０Ｎ／ｍ未満となる。）、層間での剥離が容易となる。さらに、このように天然パルプの割合が大きくなってくると、吸湿や吸水等による伸縮がし難くなり、寸法変化が０．３％未満となって、壁紙をその端部を付き合わせて貼り合わせた場合、その後の水分の吸・放湿によりその継ぎ目部分において目隙きや突き上げが発生し難くなるのである。 That is, in the entanglement of the plastic fiber and the natural pulp constituting each of the mixed paper upper layer 3 and the mixed paper lower layer 5, by setting the plastic fiber to 15% by weight to 30% by weight, fluffing is reduced and smoothness is also improved. . In addition, for example, even when the proportion of plastic fibers in the middle layer of mixed paper is 40% by weight, the relative strength of the natural pulp occupying the entire sheet-like base material is relatively high, so that the interlayer strength shows an appropriate value. (The delamination strength is less than 70 N / m), and delamination between layers becomes easy. Furthermore, when the proportion of natural pulp increases, it becomes difficult to expand and contract due to moisture absorption, water absorption, etc., and the dimensional change is less than 0.3%. In such a case, it becomes difficult for gaps and push-ups to occur at the joints due to subsequent moisture absorption and desorption.
さらに、このような混抄上層３と混抄下層５に挟まれる混抄中層４における天然パルプの割合が６０重量％〜３０重量％の範囲にあると、プラスチック繊維と天然パルプのそれぞれが４０〜７０重量％と６０〜３０重量％の割合で絡み合わされて膠着されてなる混抄中層４との結合力が大きくなるため（層間剥離強度が３０Ｎ／ｍ以上となる。）、貼り付け後に自重にて剥離する恐れがなくなる。そして、前記した三層構成の混抄紙とすることにより、湿気や水分の吸収や放出等の際に伸縮が少なくなると共に、反りの発生を大幅に低減することができるようになる。このような効果は、シート状基材２全体に占めるプラスチック繊維の混合割合が、上述の各条件の範囲内で、３５重量％以上であると顕著となる。
Furthermore, when the ratio of the natural pulp in the mixed
このような構成になるシート状基材２の形成材料の一つであるプラスチック繊維としては、ポリエステル繊維、ポリエチレン繊維、ポリプロピレン繊維、ビニロン繊維、レーヨン繊維等が具体的に挙げられる。また、繊維長としては１〜７ｍｍ程度のものを用いることが好ましい。繊維長が１ｍｍ未満では、サイズ剤やてん料などを加えて分散させて紙料
を作成する際に凝集を起こす可能性があり、７ｍｍを越えると、抄造されたシート状基材に毛羽立ちなどが起こり易くなり、平滑性に欠けるようになる。
Specific examples of plastic fibers that are one of the materials for forming the sheet-like substrate 2 having such a configuration include polyester fibers, polyethylene fibers, polypropylene fibers, vinylon fibers, and rayon fibers. The fiber length is preferably about 1 to 7 mm. If the fiber length is less than 1 mm, there is a possibility of causing aggregation when a sizing agent or a filler is added and dispersed to prepare a paper stock. If the fiber length exceeds 7 mm, fluffing etc. may occur on the sheet-like base material produced. It tends to occur and lacks smoothness.
他方、このような構成のシート状基材２の上に形成する発泡樹脂層６は、ポリ塩化ビニル樹脂、水性エマルジョン樹脂、ポリオレフィン系樹脂等の樹脂等を主体とし、これに発泡剤、隠蔽剤、充填剤、さらにはポリ塩化ビニル樹脂の場合には可塑剤等をさらに配合してなる発泡性樹脂組成物により形成された樹脂層を発泡させてなるものである。 On the other hand, the foamed resin layer 6 formed on the sheet-like substrate 2 having such a structure is mainly composed of a resin such as a polyvinyl chloride resin, an aqueous emulsion resin, a polyolefin-based resin, and the like. Further, in the case of a polyvinyl chloride resin, a filler is further formed by foaming a resin layer formed of a foamable resin composition obtained by further blending a plasticizer or the like.
シート状基材２の表面に前記樹脂層を設ける方法としては、例えば、発泡性ポリ塩化ビニル樹脂を形成材料として用いる場合、それがペーストレジン系のものである場合にはコーティング方式を採用し、ストレートレジン系のものである場合にはカレンダー方式または押し出し方式を採用すればよく、樹脂層形成後にそこを発泡させることにより発泡樹脂層を得ることができる。 As a method of providing the resin layer on the surface of the sheet-like substrate 2, for example, when a foaming polyvinyl chloride resin is used as a forming material, if it is a paste resin type, a coating method is adopted, In the case of a straight resin type, a calendar method or an extrusion method may be adopted, and a foamed resin layer can be obtained by foaming the resin layer after the resin layer is formed.
また、発泡樹脂層６を構成する発泡性樹脂組成物としては、例えばアクリル酸エステル、芳香族ビニル化合物、ＳＢＲ系、酢酸ビニル系、エチレン−酢酸ビニル共重合体、シリコーン、ポリウレタン、ポリブテン等の樹脂を少なくとも含み、共重合体もしくはコア／シェルの２層構造、ブレンド構造等の樹脂を主体とし、そこに発泡剤等を添加してなる水性エマルジョン系のものを用いることができる。このような発泡性樹脂組成物を使用する場合は、コーティング方式により樹脂層を形成すればよい。 Examples of the foamable resin composition constituting the foamed resin layer 6 include resins such as acrylic acid esters, aromatic vinyl compounds, SBR, vinyl acetate, ethylene-vinyl acetate copolymers, silicone, polyurethane, and polybutene. A water-based emulsion system comprising at least a copolymer or a resin having a core / shell two-layer structure, a blend structure, or the like, and a foaming agent or the like added thereto can be used. When such a foamable resin composition is used, the resin layer may be formed by a coating method.
さらにまた、発泡樹脂層６を構成する発泡性樹脂組成物の他の例として、ポリエチレン、ポリプロピレン、ポリブテン、ポリイソプレン、エチレン−プロピレン共重合体、エチレン−酢酸ビニル共重合体、エチレン−α−オレフィン共重合体、プロピレン−α−オレフィン共重合体、エチレン−エチルアクリレート共重合体やアイオノマー等から適宜の樹脂を選択し、これらの単独または混合したものに発泡剤等を添加してなるポリオレフィン系のものを挙げることもできる。このような発泡性樹脂組成物を使用する場合は、カレンダー方式または押し出し方式で樹脂層を形成すればよい。そして、このような構成の樹脂層も加熱発泡させることにより発泡樹脂層６とすることができる。 Furthermore, other examples of the foamable resin composition constituting the foamed resin layer 6 include polyethylene, polypropylene, polybutene, polyisoprene, ethylene-propylene copolymer, ethylene-vinyl acetate copolymer, ethylene-α-olefin. A polyolefin resin comprising an appropriate resin selected from a copolymer, a propylene-α-olefin copolymer, an ethylene-ethyl acrylate copolymer, an ionomer, etc., and a foaming agent or the like added to these alone or in combination. You can also list things. When such a foamable resin composition is used, the resin layer may be formed by a calendar method or an extrusion method. And the resin layer of such a structure can also be made into the foamed resin layer 6 by carrying out heat foaming.
以下、本発明の実施例について述べる。 Examples of the present invention will be described below.
ポリエステル繊維が１０重量％、ポリエチレン繊維が１０重量％、天然パルプが８０重量％となるように配合し、そこにサイズ剤とてん料等を加えて作成した紙料を使用し、テスト抄紙機により目付２０ｇ／ｍ2で抄紙して混抄下層を形成し、そして、その上にポリエステル繊維が５０重量％、ポリエチレン繊維が１０重量％、天然パルプが４０重量％となるようにして作成した紙料を用い、前記工程と同様の方法で混抄中層を目付６０ｇ／ｍ2で抄紙して設け、さらにその上に混抄下層形成と同じ条件により混抄上層を設けることにより、三層構成のシート状基材（混抄紙）を得た。シート状基材におけるプラスチック繊維の割合は４０重量％であった。 Using a paper stock prepared by adding 10% by weight of polyester fiber, 10% by weight of polyethylene fiber and 80% by weight of natural pulp, and adding sizing agent and filler, etc., using a test paper machine A paper base made by making paper with a basis weight of 20 g / m 2 to form a mixed paper lower layer, on which polyester fiber is 50% by weight, polyethylene fiber is 10% by weight, and natural pulp is 40% by weight. Using the same method as in the above step, the middle layer of the mixed paper is made by papermaking at a weight per unit area of 60 g / m 2 , and the upper layer of the mixed paper is provided on the same conditions as the formation of the lower layer of the mixed paper. Mixed paper). The proportion of plastic fibers in the sheet-like substrate was 40% by weight.
次に、以下にその組成を示すペーストレジン仕様の発泡性ポリ塩化ビニル樹脂組成物を用い、前記工程で得られたシート状基材の一方の面上にバーコーターにて塗工を行い、樹脂層を形成した。その後、その樹脂層上にグラビア印刷機にて柄模様を印刷し、さらに１９０℃にて加熱発泡加工とエンボス加工を同時に施してエンボス加工が施された発泡性樹脂層を形成することにより、実施例１に係る壁紙を得た。 Next, using a foamable polyvinyl chloride resin composition of the paste resin specification showing the composition below, coating on one surface of the sheet-like base material obtained in the above step with a bar coater, resin A layer was formed. After that, a pattern is printed on the resin layer with a gravure printing machine, and further subjected to heat foaming and embossing at 190 ° C at the same time to form an embossed foamable resin layer. A wallpaper according to Example 1 was obtained.
ポリエステル繊維が１０重量％、ポリエチレン繊維が１０重量％、天然パルプが８０重
量％となるように配合し、そこにサイズ剤とてん料等を加えて作成した紙料を使用し、テスト抄紙機により目付４０ｇ／ｍ2で抄紙して混抄下層を形成し、そして、その上にポリエステル繊維が５０重量％、ポリエチレン繊維が１０重量％、天然パルプが４０重量％となるようにして作成した紙料を用い、前記工程と同様の方法で混抄中層を目付４０ｇ／ｍ2で抄紙して設け、さらにその上に混抄下層形成と同じ条件により混抄上層を設けることにより、三層構成のシート状基材（混抄紙）を得た以外は、実施例１と同様の条件により、比較のための実施例２に係る壁紙を作成した。得られたシート状基材のプラスチック繊維の割合は５２重量％であった。
Using a paper stock prepared by adding 10% by weight of polyester fiber, 10% by weight of polyethylene fiber and 80% by weight of natural pulp, and adding sizing agent and filler, etc., using a test paper machine A paper is prepared with a basis weight of 40 g / m 2 to form a mixed underlayer, and a paper material prepared so that the polyester fiber is 50% by weight, the polyethylene fiber is 10% by weight, and the natural pulp is 40% by weight. Using the same method as in the above process, the middle layer of the mixed paper is made by paper making at a weight per unit area of 40 g / m 2 , and the upper layer of the mixed paper is provided on the same conditions as the formation of the lower layer of the mixed paper. The wallpaper which concerns on Example 2 for a comparison was created on the conditions similar to Example 1 except having obtained mixed paper). The ratio of the plastic fiber in the obtained sheet-like substrate was 52% by weight.
ポリエステル繊維が５重量％、ポリエチレン繊維が５重量％、天然パルプが９０重量％となるように配合し、そこにサイズ剤とてん料等を加えて作成した紙料を使用してテスト抄紙機により目付２０ｇ／ｍ2で抄紙して混抄下層を形成し、その上にポリエステル繊維が５０重量％、ポリエチレン繊維が１０重量％、天然パルプが４０重量％となるようにして作成した紙料を用いて前記工程と同様にして混抄中層を目付６０ｇ／ｍ2で抄紙して設け、さらにその上に混抄下層形成と同じ条件により混抄上層を設けることにより、三層構成のシート状基材（混抄紙）を得た以外は、実施例１と同様の条件により、比較のための実施例３に係る壁紙を作成した。得られたシート状基材のプラスチック繊維の割合は４０重量％であった。
＜発泡性ポリ塩化ビニル樹脂組成物の組成＞
塩化ビニルペーストレジン １００重量部
フタル酸ジイソノニル ６０重量部
アゾジカルボンアミド ５重量部
水酸化アルミニウム ８０重量部
次に、各実施例に係る壁紙に対して下記のような評価を行った。結果を表１に示す。
＜毛羽評価＞
抄紙したシート状基材の表面を目視にて観察して毛羽立ちの評価を行った。評価に当たっては、表面が平滑な状態のものを○、それ以外の状態のものを×とした。
＜水伸縮評価＞
各壁紙を縦０．３ｍ、横１ｍの矩形状に切断してから水の中に３０分間浸漬し、しかる後に取り出し、取り出し直後の寸法及び２４時間風乾後の寸法を測定し、浸漬前の寸法に対する変化率により水伸度（％）と水縮度（％）をそれぞれ算出し、水伸縮性の評価を行った。
＜施工性評価＞
各壁紙を１．８ｍ（縦）×０．９ｍ（横）にカットしてから石膏ボードに貼り付け、さらにカッターナイフにて貼り付けた壁紙の中央に切り目を入れた。その後、霧吹きにて水を吹きかけ、２４時間後に切り目が目立つか目立たないかを観察し、施工性の評価を行った。
＜層間剥離強度の測定＞
各壁紙２５ｍｍ×２００ｍｍの矩形状にカットし、層間の剥離強度を引張試験機にて測定した。
Blended with 5% by weight of polyester fiber, 5% by weight of polyethylene fiber, and 90% by weight of natural pulp, and added a sizing agent and filler to the test paper machine. Using a paper material prepared by making paper with a basis weight of 20 g / m 2 to form a mixed paper layer, on which 50% by weight of polyester fiber, 10% by weight of polyethylene fiber, and 40% by weight of natural pulp are formed. In the same manner as in the above process, the middle layer of the mixed paper is made by paper making at a weight per unit area of 60 g / m 2 , and the upper layer of the mixed paper is provided on the same conditions as the formation of the lower layer of the mixed paper. The wallpaper which concerns on Example 3 for a comparison was created on the conditions similar to Example 1 except having obtained. The proportion of plastic fibers in the obtained sheet-like substrate was 40% by weight.
<Composition of foamable polyvinyl chloride resin composition>
Vinyl chloride paste resin 100 parts by weight Diisononyl phthalate 60 parts by weight Azodicarbonamide 5 parts by weight Aluminum hydroxide 80 parts by weight Next, the following evaluation was performed on the wallpaper according to each example. The results are shown in Table 1.
<Fuzzy evaluation>
The surface of the sheet-like substrate thus made was visually observed to evaluate the fluff. In the evaluation, the case where the surface was smooth was indicated as ◯, and the case where the surface was otherwise was indicated as ×.
<Water stretch evaluation>
Each wallpaper is cut into a rectangular shape with a length of 0.3m and a width of 1m, then immersed in water for 30 minutes, then taken out, measured immediately after removal, and measured after 24 hours of air drying. The degree of water elongation (%) and the degree of water shrinkage (%) were calculated based on the rate of change with respect to the water, and the water stretchability was evaluated.
<Evaluation of workability>
Each wallpaper was cut to 1.8 m (vertical) × 0.9 m (horizontal) and pasted on a plasterboard, and a cut was made in the center of the wallpaper pasted with a cutter knife. Then, water was sprayed with a spray, and after 24 hours, it was observed whether the cuts were conspicuous or inconspicuous, and the workability was evaluated.
<Measurement of delamination strength>
Each wallpaper was cut into a rectangular shape of 25 mm × 200 mm, and the peel strength between layers was measured with a tensile tester.
１・・・壁紙
２・・・シート状基材
３・・・混抄上層
４・・・混抄中層
５・・・混抄下層
６・・・発泡樹脂層
DESCRIPTION OF SYMBOLS 1 ... Wallpaper 2 ... Sheet-like base material 3 ... Mixed paper
Claims (3)
The wallpaper according to claim 1, wherein the foamed resin layer is made of a foamable resin mainly composed of a foamed polyvinyl chloride resin, a foamed aqueous emulsion resin, or a foamed polyolefin resin.
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| JPS4864204A (en) * | 1971-12-10 | 1973-09-06 | ||
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