JP4596504B2

JP4596504B2 - wallpaper

Info

Publication number: JP4596504B2
Application number: JP2001033540A
Authority: JP
Inventors: 宏文天野
Original assignee: 東リ株式会社
Priority date: 2001-02-09
Filing date: 2001-02-09
Publication date: 2010-12-08
Anticipated expiration: 2021-02-09
Also published as: JP2002235298A

Description

【０００１】
【発明の属する技術分野】
本願発明は、施工性の良い壁紙に関する。
【０００２】
【従来の技術】
従来の紙壁紙は風合いはよいが、寸法安定性が悪く施工性が劣っていた。
【０００３】
このため不織布層を介在させた例えば特開平１０−２０４７８３号公報の壁紙が開示されたが、寸法安定性が良くても風合いが悪かった。
【０００４】
【発明が解決しようとする課題】
本発明は環境に良く、紙壁紙の風合いを有し、施工性も優れた壁紙を提供するものである。
【０００５】
【課題を解決するための手段】
本発明は、基材上に熱可塑性繊維と非熱可塑性繊維が含有されて熱可塑性繊維が点融着された嵩高不織布層が積層され、該不織布上に表面化粧紙が積層されたことを特徴とする壁紙、に関する。
【０００６】
【発明の実施の形態】
「図１」は本発明壁紙製造の部分工程図で、紙の表面化粧紙層１に熱可塑性フィルム２が積層されて嵩高不織布３に接着剤で貼り付けられる。
表面化粧紙層は、パルプに０〜５０％の非熱可塑性繊維を添加混抄した紙が望ましい。非熱可塑性繊維としては、レーヨン等の再生繊維、和紙成分等の天然繊維が好適である。風合いのためにはレーヨンが最も望ましい。この化粧紙は５〜５０ｇ／ｍ²の坪量の化粧紙に印刷模様が付与されても良い。
所望により、表面化粧紙層はエチレン−酢酸ビニルコポリマー（ＥＶＡ）、ポリエチレン（ＰＥ）、ポリプロピレン（ＰＰ）等の熱可塑性フィルム２に積層されており、嵩高不織布に接着される。
【０００７】
嵩高不織布３はＰＥ、ＰＰ、ナイロン等の熱可塑性繊維にレーヨン、パルプ等の非熱可塑性繊維を混抄したウエブをドット状に溶融して繊維の相互位置を固定した厚さ０．２〜１．０ｍｍで１０〜１００ｇ／ｍ^２の不織布である。この時非熱可塑性繊維の混合率は３０〜５０％が好適である。フィルム付き化粧紙層は、接着剤で嵩高不織布に接着する。その時加熱ロール４，４’で１００℃前後の温度で圧着され積層体５が得られる。
【０００８】
「図２」は嵩高不織布３の平面図であり、熱可塑性繊維とレーヨンパルプ等の非熱可塑性繊維が混抄されたウエブ６が１〜５ｍｍの間隔で、エンボスロールのような加熱エンボス体でドット状７に内在する熱可塑性繊維を溶融し、繊維相互位置を固定し、繊維がばらけない等の不織布の性能を保持した構成である。
【０００９】
「図３」は本願発明壁紙の断面図であり、表面化粧紙層１にフィルム２が積層された状態で、接着剤１０を介して好ましくはレーヨンが混抄されたサーマルボンド嵩高不織布３の積層体に加熱エンボスロールで表面にシャープなエンボスが付与されて、塩ビを含有しない接着剤８を介してクレープ紙、不織布や非塩ビ樹脂の基材９を積層し、環境に対応した風合いの良い本発明非塩ビ壁紙１１を得た。上記接着剤８はアクリル系接着剤等の非透水性接着剤が好ましい。
【００１０】
本発明において、嵩高不織布に機能性材料を付与して、壁紙に各種機能を付与することができる。機能性材料とは、消臭、芳香性付与抗菌、アルデヒド吸収、等の機能を有する材料で、具体例として、銀系抗菌剤、ビタミンＣ−鉄系消臭剤が挙げられる。
【００１１】
上記積層体に１００〜１５０℃の熱エンボスロールでシャープなエンボスを付与した。
この時フィルム上接着剤の一部が破れた。嵩高不織布内に機能性薬剤が付与されていた場合、この破れた部分から機能性薬剤が表出し、所望する機能が得られる。
これらの機能性物質は、上述のフィルム層がエンボスによって切れた部分から空気中に分散する。
【００１２】
本発明において、表面化粧紙層、フィルム層、嵩高不織布、基材にいずれもＰＶＣ（塩ビ）を含有しない材料が望ましい。
【００１３】
本発明のメカニズムは、壁紙を構成する嵩高不織布が、熱可塑性繊維と非熱可塑性繊維を点状態で融着することにより、壁紙が層間剥離することなく強固に積層されている構成が得られる上に、壁紙全体が柔らかくしなやかで、施工性が非常に優れる。
この傾向はレーヨンやパルプ等の非熱可塑性繊維を混抄したときに特に顕著である。
更に表面化粧紙層にレーヨン、パルプ、和紙原料の天然繊維等の非熱可塑性繊維を混抄すると、しなやかな触感と、紙壁紙と同じ風合いが得られ、シャープなエンボス模様が得られる。
【００１４】
更に基材と嵩高不織布を非透水性接着剤で積層した構成であると、壁紙を接着剤で施工した場合、うませ過ぎて変形することもなく、しかも程良い軟らかさを保ち、施工しやすい。
【００１５】
【発明の効果】
ドット加熱タイプの嵩高不織布にレーヨン混抄表面化粧紙層を積層し、加熱エンボスした後基材を積層する事で、本発明壁紙が得られる。その効果は、
１．硬くなり過ぎず、柔らかい風合いが得られた。
２．不織布層間剥離しない適当な積層強度が得られた。
３．接着剤で施工しても、うませのびが適度にあり、折りたたみ相剥ぎ時間が長く、施工性が良く、しかも程良い柔らかさを保つことが出来た。
４．シャープなエンボス形状が得られ、しかもホットエンボスで強度アップになった。
５．表面が化粧紙であっても、目地隙が無く、寸法安定性が優れていた。
６．壁紙に各種の機能性を付与することができた。
７．ＰＶＣを含有しないので、環境に適応した壁紙である。
【００１６】
【実施例】
【実施例１】
予め、０．６ｍｍ厚で坪量４０ｇ／ｍ²のＰＰの熱可塑性繊維７０％に３０％の難燃性レーヨンを混合したウエブを、５ｍｍ間隔ドット内で部分スポット加熱溶融したサーマルボンド嵩高不織布を得た。次にＰＰ７０％にレーヨン３０％を混抄した坪量２０ｇ／ｍ²表面化粧紙にＰＥを積層し印刷を行った後、嵩高不織布に表面化粧紙をＥＶＡ系接着剤で積層した。
【００１７】
上記積層体に１３５℃の熱エンボスロールでシャープなエンボスを付与した。この時フィルム上接着剤の一部が破れた。嵩高不織布内に機能性薬剤が付与されていた場合、この破れた部分から機能性薬剤が表出し、所望する機能が得られた。
嵩高不織布裏面に、アクリル系非透水性接着剤で４６ｇ／ｍ²のクレープ紙を裏打ちし、本願発明の非塩ビ壁紙を得た。
得られた壁紙は、表面の風合いが良く、寸法安定性、施工性が優れていた。
【００１８】
【参考例】
０．６ｍｍ厚で４０ｇ／ｍ2 のＰＰの嵩高不織布上にレーヨンを含まない表面化粧紙を積層した他は、実施例１と同様の壁紙を得た。実施例１、及び、参考例の結果を「表１」に示す。
【００１９】
【表１】

【００２０】
従来公知の表面化粧紙が厚さ０．４ｍｍの紙である紙壁紙を比較例とした。
「表１」より、実施例１，２とも比較例と比べ目地隙、相ハギ性(施工可能時間)、風合いとも優れた壁紙であった。特に実施例１は壁紙全体が柔らかく、施工性が良好であった。
【図面の簡単な説明】
【図１】本願発明壁紙部分製造工程図である。
【図２】嵩高不織布の表面図である。
【図３】本願発明壁紙断面図である。
【符号の説明】
１…表面化粧紙層
３…嵩高不織布層
９…基材
１１…本発明壁紙[0001]
BACKGROUND OF THE INVENTION
The present invention relates to wallpaper having good workability.
[0002]
[Prior art]
Conventional paper wallpaper has a good texture, but has poor dimensional stability and workability.
[0003]
For this reason, for example, a wallpaper disclosed in Japanese Patent Application Laid-Open No. 10-204783 with a non-woven fabric layer interposed therein was disclosed, but the texture was poor even with good dimensional stability.
[0004]
[Problems to be solved by the invention]
The present invention provides a wallpaper that is environmentally friendly, has a texture of paper wallpaper, and has excellent workability.
[0005]
[Means for Solving the Problems]
The present invention is characterized in that a bulky nonwoven fabric layer in which thermoplastic fibers and non-thermoplastic fibers are contained on a base material and in which the thermoplastic fibers are point-fused is laminated, and a surface decorative paper is laminated on the nonwoven fabric. About wallpaper.
[0006]
DETAILED DESCRIPTION OF THE INVENTION
“FIG. 1” is a partial process diagram of the wallpaper production of the present invention, wherein a thermoplastic film 2 is laminated on a paper surface decorative paper layer 1 and attached to a bulky nonwoven fabric 3 with an adhesive.
The surface decorative paper layer is preferably paper obtained by adding and mixing 0 to 50% non-thermoplastic fibers to pulp. As the non-thermoplastic fibers, recycled fibers such as rayon and natural fibers such as Japanese paper components are suitable. For texture, rayon is most desirable. This decorative paper may be provided with a printed pattern on a decorative paper having a basis weight of 5 to 50 g / m ² .
If desired, the surface decorative paper layer is laminated on a thermoplastic film 2 such as ethylene-vinyl acetate copolymer (EVA), polyethylene (PE), polypropylene (PP), and is adhered to the bulky nonwoven fabric.
[0007]
The bulky nonwoven fabric 3 has a thickness of 0.2-1... 1 in which a web obtained by mixing non-thermoplastic fibers such as rayon and pulp with thermoplastic fibers such as PE, PP, and nylon is melted in a dot shape to fix the mutual positions of the fibers. It is a nonwoven fabric of 10 to 100 g / m ² at 0 mm. At this time, the mixing ratio of non-thermoplastic fibers is preferably 30 to 50%. The decorative paper layer with film is adhered to the bulky nonwoven fabric with an adhesive. At that time, the laminate 5 is obtained by pressure bonding with the

heating rolls

4 and 4 ′ at a temperature of about 100 ° C.
[0008]
“FIG. 2” is a plan view of the bulky nonwoven fabric 3 in which webs 6 in which thermoplastic fibers and non-thermoplastic fibers such as rayon pulp are mixed are dots 1 to 5 mm apart by a heated embossed body such as an embossing roll. In this configuration, the thermoplastic fibers contained in the shape 7 are melted, the mutual positions of the fibers are fixed, and the performance of the nonwoven fabric is maintained such that the fibers are not scattered.
[0009]
“FIG. 3” is a cross-sectional view of the wallpaper of the present invention, and is a laminate of thermal bond bulky nonwoven fabric 3 in which rayon is preferably mixed with adhesive 10 in a state where film 2 is laminated on surface decorative paper layer 1. Sharp embossing is imparted to the surface with a heated embossing roll, and a crepe paper, non-woven fabric or non-vinyl chloride resin base material 9 is laminated via an adhesive 8 containing no vinyl chloride, and the present invention has a good texture corresponding to the environment. A non-vinyl chloride wallpaper 11 was obtained. The adhesive 8 is preferably a non-water-permeable adhesive such as an acrylic adhesive.
[0010]
In this invention, a functional material can be provided to a bulky nonwoven fabric and various functions can be provided to wallpaper. The functional material is a material having functions such as deodorization, fragrance imparting antibacterial, and aldehyde absorption, and specific examples thereof include silver antibacterial agents and vitamin C-iron deodorants.
[0011]
Sharp embossing was imparted to the laminate by a hot embossing roll at 100 to 150 ° C.
At this time, a part of the adhesive on the film was torn. When a functional drug is given in the bulky nonwoven fabric, the functional drug is exposed from the broken portion, and a desired function is obtained.
These functional substances are dispersed in the air from the portion where the film layer is cut by embossing.
[0012]
In the present invention, the surface decorative paper layer, the film layer, the bulky nonwoven fabric, and the base material are preferably materials that do not contain PVC (vinyl chloride).
[0013]
The mechanism of the present invention is that the bulky nonwoven fabric constituting the wallpaper is obtained by fusing thermoplastic fibers and non-thermoplastic fibers in a dot state, so that the wallpaper is firmly laminated without delamination. In addition, the entire wallpaper is soft and supple, and the workability is very good.
This tendency is particularly remarkable when non-thermoplastic fibers such as rayon and pulp are mixed.
Further, when non-thermoplastic fibers such as rayon, pulp, and natural fibers of Japanese paper are mixed in the surface decorative paper layer, a supple feel and the same texture as the paper wallpaper are obtained, and a sharp embossed pattern is obtained.
[0014]
Furthermore, when the base material and bulky nonwoven fabric are laminated with a water-impermeable adhesive, when wallpaper is applied with an adhesive, it will not be deformed excessively, and it will remain soft and easy to apply. .
[0015]
【The invention's effect】
The wallpaper of the present invention can be obtained by laminating a rayon-mixed surface decorative paper layer on a dot heating type bulky nonwoven fabric, laminating the substrate after heat embossing. The effect is
1. A soft texture was obtained without becoming too hard.
2. Appropriate lamination strength that does not cause delamination of the nonwoven fabric was obtained.
3. Even when it was constructed with an adhesive, there was a moderate amount of spread, a long folding phase peeling time, good workability, and a moderate softness.
4). A sharp embossed shape was obtained, and the strength was increased by hot embossing.
5). Even if the surface was decorative paper, there was no joint space and dimensional stability was excellent.
6). Various functionalities could be given to the wallpaper.
7). Since it does not contain PVC, it is a wallpaper adapted to the environment.
[0016]
【Example】
[Example 1]
A thermal bond bulky nonwoven fabric in which a web made by mixing 30% flame retardant rayon with 70% PP thermoplastic fiber having a thickness of 40 g / m ² in 0.6 mm thickness is heated by partial spot heating within 5 mm spacing dots. Obtained. Next, PE was laminated on a surface-coated paper having a basis weight of 20 g / m ^2, which was obtained by mixing 30% rayon with 70% PP, and then printed, and then the surface-coated paper was laminated on the bulky nonwoven fabric with an EVA adhesive.
[0017]
Sharp embossing was imparted to the laminate by a hot embossing roll at 135 ° C. At this time, a part of the adhesive on the film was torn. When the functional drug was given in the bulky nonwoven fabric, the functional drug was exposed from the broken part, and the desired function was obtained.
On the back of the bulky nonwoven fabric, 46 g / m ² of crepe paper was lined with an acrylic non-permeable adhesive to obtain a non-vinyl chloride wallpaper of the present invention.
The obtained wallpaper had a good surface texture and excellent dimensional stability and workability.
[0018]
[ Reference example ]
A wallpaper similar to that of Example 1 was obtained except that a surface decorative paper not containing rayon was laminated on a bulky nonwoven fabric of PP having a thickness of 0.6 mm and 40 g / m2. The results of Example 1 and Reference Example are shown in “Table 1”.
[0019]
[Table 1]

[0020]
A paper wallpaper in which a conventionally known decorative paper is 0.4 mm thick was used as a comparative example.
According to “Table 1”, both Examples 1 and 2 were wallpapers that were superior in joint clearance, phase separation (workable time), and texture compared to the comparative example. Particularly in Example 1, the whole wallpaper was soft and the workability was good.
[Brief description of the drawings]
BRIEF DESCRIPTION OF DRAWINGS FIG.
FIG. 2 is a surface view of a bulky nonwoven fabric.
FIG. 3 is a sectional view of the present invention wallpaper.
[Explanation of symbols]
DESCRIPTION OF SYMBOLS 1 ... Surface decorative paper layer 3 ... Bulky nonwoven fabric layer 9 ... Base material 11 ... This invention wallpaper

Claims

On the base material, a bulky nonwoven fabric layer and a surface decorative paper are laminated in this order,
The bulky nonwoven fabric layer contains thermoplastic fibers and non-thermoplastic fibers, and the thermoplastic fibers and non-thermoplastic fibers are point-fused at intervals of 1 to 5 mm, and the thickness is 0.2 to 1.0 mm, the basis weight is 10 to 100 g / m ² ,
The non-thermoplastic fibers, rayon, pulp, or, Ri material fiber der washi,
A wallpaper characterized in that embossing is performed after laminating a surface decorative paper on a bulky nonwoven fabric layer that has been previously point-fused .

The wallpaper according to claim 1, wherein the bulky nonwoven fabric and the surface decorative paper do not contain a polyvinyl chloride resin.

The wallpaper according to any one of claims 1 and 2, wherein the bulky nonwoven fabric layer includes a silver-based antibacterial agent and / or a vitamin C-iron-based deodorant.