JP2017019134A5 - Decorative sheet and method for producing the decorative sheet - Google Patents
Decorative sheet and method for producing the decorative sheet Download PDFInfo
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- JP2017019134A5 JP2017019134A5 JP2015136847A JP2015136847A JP2017019134A5 JP 2017019134 A5 JP2017019134 A5 JP 2017019134A5 JP 2015136847 A JP2015136847 A JP 2015136847A JP 2015136847 A JP2015136847 A JP 2015136847A JP 2017019134 A5 JP2017019134 A5 JP 2017019134A5
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- decorative sheet
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- inorganic filler
- resin composition
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- 238000004519 manufacturing process Methods 0.000 title claims description 12
- 239000011256 inorganic filler Substances 0.000 claims description 34
- 229910003475 inorganic filler Inorganic materials 0.000 claims description 34
- 239000002270 dispersing agent Substances 0.000 claims description 29
- 229920005989 resin Polymers 0.000 claims description 23
- 239000011347 resin Substances 0.000 claims description 23
- 239000011342 resin composition Substances 0.000 claims description 23
- 238000001704 evaporation Methods 0.000 claims description 14
- 229920005672 polyolefin resin Polymers 0.000 claims description 14
- VTYYLEPIZMXCLO-UHFFFAOYSA-L calcium carbonate Chemical group [Ca+2].[O-]C([O-])=O VTYYLEPIZMXCLO-UHFFFAOYSA-L 0.000 claims description 12
- 239000004744 fabric Substances 0.000 claims description 9
- 229960003563 Calcium Carbonate Drugs 0.000 claims description 6
- 229910000019 calcium carbonate Inorganic materials 0.000 claims description 6
- 238000000034 method Methods 0.000 claims description 5
- 239000000049 pigment Substances 0.000 claims description 2
- -1 polyethylene Polymers 0.000 claims 2
- 239000004698 Polyethylene (PE) Substances 0.000 claims 1
- 239000004743 Polypropylene Substances 0.000 claims 1
- 229920000573 polyethylene Polymers 0.000 claims 1
- 229920001155 polypropylene Polymers 0.000 claims 1
- 239000012071 phase Substances 0.000 description 12
- 239000000463 material Substances 0.000 description 11
- 230000002776 aggregation Effects 0.000 description 5
- 230000000052 comparative effect Effects 0.000 description 4
- 239000006185 dispersion Substances 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- 239000000203 mixture Substances 0.000 description 4
- 239000002245 particle Substances 0.000 description 4
- 238000004220 aggregation Methods 0.000 description 3
- 239000003795 chemical substances by application Substances 0.000 description 3
- 229920001903 high density polyethylene Polymers 0.000 description 3
- 239000004700 high-density polyethylene Substances 0.000 description 3
- 239000002502 liposome Substances 0.000 description 3
- 150000003904 phospholipids Chemical class 0.000 description 3
- 238000005054 agglomeration Methods 0.000 description 2
- 238000005452 bending Methods 0.000 description 2
- VGGSQFUCUMXWEO-UHFFFAOYSA-N ethene Chemical compound C=C VGGSQFUCUMXWEO-UHFFFAOYSA-N 0.000 description 2
- JOYRKODLDBILNP-UHFFFAOYSA-N ethyl urethane Chemical compound CCOC(N)=O JOYRKODLDBILNP-UHFFFAOYSA-N 0.000 description 2
- 239000008188 pellet Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- 230000002087 whitening Effects 0.000 description 2
- ULQISTXYYBZJSJ-UHFFFAOYSA-N 12-hydroxyoctadecanoic acid Chemical compound CCCCCCC(O)CCCCCCCCCCC(O)=O ULQISTXYYBZJSJ-UHFFFAOYSA-N 0.000 description 1
- 229940114072 12-hydroxystearic acid Drugs 0.000 description 1
- 229960005069 Calcium Drugs 0.000 description 1
- 229940067631 Phospholipids Drugs 0.000 description 1
- 239000000853 adhesive Substances 0.000 description 1
- 230000001070 adhesive Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 229910052791 calcium Inorganic materials 0.000 description 1
- 239000002775 capsule Substances 0.000 description 1
- 238000005039 chemical industry Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000005520 cutting process Methods 0.000 description 1
- 238000004049 embossing Methods 0.000 description 1
- 238000009408 flooring Methods 0.000 description 1
- 238000005755 formation reaction Methods 0.000 description 1
- 238000010030 laminating Methods 0.000 description 1
- 150000002632 lipids Chemical class 0.000 description 1
- 239000007791 liquid phase Substances 0.000 description 1
- FYYHWMGAXLPEAU-UHFFFAOYSA-N magnesium Chemical compound [Mg] FYYHWMGAXLPEAU-UHFFFAOYSA-N 0.000 description 1
- 229910052749 magnesium Inorganic materials 0.000 description 1
- 239000011777 magnesium Substances 0.000 description 1
- HQKMJHAJHXVSDF-UHFFFAOYSA-L magnesium stearate Substances [Mg+2].CCCCCCCCCCCCCCCCCC([O-])=O.CCCCCCCCCCCCCCCCCC([O-])=O HQKMJHAJHXVSDF-UHFFFAOYSA-L 0.000 description 1
- 235000019359 magnesium stearate Nutrition 0.000 description 1
- 229910052751 metal Inorganic materials 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000006011 modification reaction Methods 0.000 description 1
- 229920000098 polyolefin Polymers 0.000 description 1
- 239000000758 substrate Substances 0.000 description 1
- 230000001629 suppression Effects 0.000 description 1
- 238000004381 surface treatment Methods 0.000 description 1
- 238000009864 tensile test Methods 0.000 description 1
Description
本発明は、建築内装材、玄関ドアなどの建築外装部材、建具の表面、家電品の表面材等に用いられる化粧シートおよび化粧シートの製造方法に関するもので、特に、木質ボード類、無機系ボード類、金属板などに貼り合わせて床材用として用いられ、凹み耐性、難燃性および隠蔽性に優れた化粧シートおよび化粧シートの製造方法に関する。 TECHNICAL FIELD The present invention relates to a decorative sheet used for a building interior material, a building exterior member such as a front door, a surface of a joinery, a surface material of home appliances, and a method for manufacturing the decorative sheet. The present invention relates to a decorative sheet that is used for flooring by being bonded to a metal plate or the like, and has excellent dent resistance, flame retardancy, and concealing property, and a method for producing the decorative sheet .
ここで、本発明者等は、特許文献３に開示している超臨界逆相蒸発法によってベシクルに分散剤を内包させた分散剤内包ベシクルと、無機フィラーとをポリオレフィン系樹脂材料に添加することで、樹脂材料に対する無機フィラーの分散性を格段に向上させて、ポリオレフィン系樹脂材料中に無機フィラーを均一に分散させた樹脂組成物を得ることに成功した。 Here, the present inventors have added a dispersing agent encapsulating vesicles encasing an dispersing agent in the supercritical reverse phase evaporation method therefore vesicles are disclosed in Patent Document 3, an inorganic filler to a polyolefin-based resin material Thus, the dispersibility of the inorganic filler with respect to the resin material was remarkably improved, and a resin composition in which the inorganic filler was uniformly dispersed in the polyolefin resin material was successfully obtained.
本発明においては、化粧シートの構成を増大させることなく化粧シート自身に凹み耐性を付与するとともに、超臨界逆相蒸発法によってベシクルに分散剤を内包させた分散剤内包ベシクルを用いて機械的強度を低下させることなくポリオレフィン系樹脂の一部を無機フィラーに置換した樹脂組成物によって化粧シートおよび化粧シートの製造方法の低廉化と隠蔽性の付与を実現することを目的とする。 In the present invention, the decorative sheet itself is provided with dent resistance without increasing the composition of the decorative sheet, and the mechanical strength is obtained by using the dispersant-encapsulating vesicle in which the vesicle is encapsulated by the supercritical reverse phase evaporation method . An object of the present invention is to reduce the cost of a decorative sheet and a method for producing the decorative sheet and to provide concealment by a resin composition in which a part of the polyolefin-based resin is substituted with an inorganic filler without reducing the viscosity.
上記課題を達成するべく、本発明の第１の態様の化粧シートは、複数の樹脂層からなり、 前記樹脂層のうちの１層が、ポリオレフィン系樹脂を主成分として無機フィラーが添加された樹脂組成物から構成され１軸延伸加工または２軸延伸加工が施された厚さ１００〜３００μｍの原反層とされた化粧シートであって、前記原反層は、前記樹脂組成物に、さらに超臨界逆相蒸発法によってベシクルに分散剤を内包させた分散剤内包ベシクルを添加して形成したことを特徴とする。 In order to achieve the above object, the decorative sheet of the first aspect of the present invention comprises a plurality of resin layers, and one of the resin layers is a resin in which an inorganic filler is added with a polyolefin resin as a main component. a decorative sheet configured uniaxially stretching or biaxially stretching is the original Hanso thick 100~300μm subjected from the composition, the original Hanso is the resin composition, further super characterized Thus it has formed by adding a dispersing agent encapsulating vesicles encasing an dispersant vesicles critical reverse phase evaporation method.
このような、本発明の第１の態様の化粧シートにおいては、１軸延伸加工または２軸延伸加工が施され厚さ１００〜３００μｍの原反層を備えることで優れた凹み性能を発揮するとともに、超臨界逆相蒸発法によってベシクルに分散剤を内包させた分散剤内包ベシクルを添加することによって、樹脂組成物中の無機フィラーが凝集することがなく、機械的強度を損なわずに樹脂組成物の一部を無機フィラーに置換することで、化粧シートの低廉化を可能とする。 In such a decorative sheet according to the first aspect of the present invention, a uniaxial stretching process or a biaxial stretching process is performed, and an excellent dent performance is exhibited by including an original fabric layer having a thickness of 100 to 300 μm. , by adding a dispersing agent encapsulating vesicles encasing an dispersant Therefore vesicles supercritical reverse phase evaporation method, without inorganic filler in the resin composition is aggregated, the resin composition without impairing the mechanical strength By replacing a part of the product with an inorganic filler, it is possible to reduce the cost of the decorative sheet.
本発明の第５の態様の化粧シートは、前記無機フィラーが、炭酸カルシウムであることを特徴とする。このような、本発明の第５の態様の化粧シートにおいては、無機フィラーとして炭酸カルシウムを用いることにより、製造手法による粒径のコントロールや表面処理によるポリオレフィン樹脂との相溶性の制御が容易であり、また、材料コストとしても安価であるため化粧シートの低廉化することができる。 The decorative sheet according to the fifth aspect of the present invention is characterized in that the inorganic filler is calcium carbonate. In such a decorative sheet according to the fifth aspect of the present invention, by using calcium carbonate as the inorganic filler, it is easy to control the particle size by the production method and the compatibility with the polyolefin resin by the surface treatment. In addition, since the material cost is low, the decorative sheet can be made inexpensive.
本発明の化粧シートの製造方法は、複数の樹脂層からななる化粧シートの製造方法であって、前記樹脂層のうちの１層を、主成分とするポリオレフィン系樹脂に無機フィラーと超臨界逆相蒸発法によってベシクルに分散剤を内包させた分散剤内包ベシクルとを添加した樹脂組成物に対して、１軸延伸加工または２軸延伸加工を施した厚さ１００〜３００μｍの原反層として形成することを特徴とする。A method for producing a decorative sheet according to the present invention is a method for producing a decorative sheet comprising a plurality of resin layers, wherein one of the resin layers is a polyolefin-based resin having a main component as an inorganic filler and a supercritical inverse. Formed as a 100-300 μm-thick original fabric layer by uniaxially or biaxially stretching a resin composition obtained by adding a dispersant-encapsulating vesicle with a vesicle encapsulated by a phase evaporation method It is characterized by doing.
本発明の化粧シートおよび化粧シートの製造方法によれば、化粧シートの構成を増大させることなく化粧シート自身に優れた凹み耐性を備えるとともに、超臨界逆相蒸発法によってベシクルに分散剤を内包させた分散剤内包ベシクルを用いて機械的強度を低下させることなくポリオレフィン系樹脂の一部を無機フィラーに置換して、化粧シートの低廉化と隠蔽性の付与を実現することを可能とする。 According to the decorative sheet and the manufacturing method of the decorative sheet of the present invention, the decorative sheet itself has excellent dent resistance without increasing the configuration of the decorative sheet, and the vesicle is encapsulated with the dispersant by the supercritical reverse phase evaporation method . By using a dispersant-containing vesicle , a part of the polyolefin-based resin can be replaced with an inorganic filler without lowering the mechanical strength, thereby making it possible to reduce the cost of the decorative sheet and to provide concealment.
本発明の化粧シートは、複数の樹脂層からなり、当該樹脂層のうち１層が、ポリオレフィン系樹脂を主成分として無機フィラーが添加された樹脂組成物から構成され、１軸延伸加工または２軸延伸加工が施された厚さ１００〜３００μｍの原反層とされており、当該原反層は、前記樹脂組成物に、さらに超臨界逆相蒸発法によってベシクルに分散剤を内包させた分散剤内包ベシクルを添加して形成した形成されていることが重要である。 The decorative sheet of the present invention comprises a plurality of resin layers, and one of the resin layers is composed of a resin composition containing a polyolefin resin as a main component and added with an inorganic filler, uniaxially stretched or biaxially. are the original Hanso thick 100~300μm the stretching is performed, the raw layer, said resin composition, is included a dispersing agent further Therefore vesicles supercritical reverse phase evaporation method dispersion It is important that it is formed by adding an agent-containing vesicle .
本発明における樹脂組成物を調製する際においては、超臨界逆相蒸発法によってベシクルに分散剤を内包させた分散剤内包ベシクルを添加することが特に重要である。ベシクルとは、球殻状に閉じた膜構造を有する小胞（カプセル）で内部に液相を含むものの総称であり、特に、外膜がリン脂質のような生体脂質から構成されるベシクルをリポソームと称する。このような、ベシクル化された状態の分散剤内包ベシクルは極めて分散性に優れており、当該分散剤内包ベシクル、無機フィラーおよびポリオレフィン系樹脂を混練した際に、これらの混合物中において当該分散剤内包ベシクルが凝集することなく均一に分散するため、無機フィラーの粒子間にも当該分散剤内包ベシクルが侵入して、無機フィラーが凝集することをも防止し、ポリオレフィン樹脂中に無機フィラーを均一に分散させることを可能とする。 In preparing the resin composition of the present invention, it is particularly important to add a dispersant containing vesicles were contained a dispersant Therefore vesicles supercritical reverse phase evaporation method. A vesicle is a general term for vesicles (capsules) having a membrane structure closed in a spherical shell and containing a liquid phase inside. In particular, vesicles whose outer membrane is composed of biological lipids such as phospholipids are liposomes. Called. Such dispersing agent encapsulating vesicles vesicles of state is extremely excellent dispersibility, when the dispersion agent encapsulating vesicle, an inorganic filler and a polyolefin resin kneaded, the dispersants contained in these mixtures Since the vesicles are uniformly dispersed without agglomeration, the dispersion-encapsulating vesicles also enter between the inorganic filler particles to prevent the inorganic filler from agglomerating, and the inorganic filler is uniformly dispersed in the polyolefin resin. It is possible to make it.
本発明の化粧シートにおいては、超臨界逆相蒸発法によってベシクルに分散剤を内包させた分散剤内包ベシクルが添加されていることにより、化粧シートとしての引張強度、加工性などを損なうことなく樹脂材の一部を無機フィラーに置換することを可能とする。ちなみに、化粧シートにおいては、引張弾性率５００ＭＰａ以上２０００ＭＰａ以下、かつ、引張破断伸度２００％以上の引張強度が要求される。 In the decorative sheet of the present invention, by adding the dispersant-encapsulating vesicle in which the dispersant is encapsulated in the vesicle by the supercritical reverse phase evaporation method, the resin is obtained without impairing the tensile strength, workability, etc. as the decorative sheet. Part of the material can be replaced with an inorganic filler. Incidentally, the decorative sheet is required to have a tensile strength with a tensile modulus of 500 MPa or more and 2000 MPa or less and a tensile elongation at break of 200% or more.
特に、本発明の化粧シートにおいては、分散剤内包ベシクルがリン脂質からなる外膜を具備したリポソームとされていることが重要である。これにより、ポリオレフィン系の樹脂と分散剤内包ベシクルとの相溶性をさらに良好なものとすることができるので、分散剤内包ベシクルの分散性を高めて、より均一に分散剤内包ベシクルを分散させることを可能とする。その結果、分散剤内包ベシクルの高い分散能力によって無機フィラーの二次凝集を抑制し、当該無機フィラーの分散性をも良好なものとすることができる。 In particular, in the decorative sheet of the present invention, it is important that the dispersion-encapsulating vesicle is a liposome having an outer membrane made of phospholipid. Thus, it is possible to further and better ones compatibility with the resin and the dispersing agent encapsulating vesicle polyolefin, to increase the dispersibility of the dispersing agent encapsulating vesicles, are dispersed more uniformly dispersed agent encapsulating vesicles Is possible. As a result, secondary dispersion of the inorganic filler can be suppressed by the high dispersion ability of the dispersant- encapsulating vesicle, and the dispersibility of the inorganic filler can be improved.
このとき、当該原反シート２は、ＪＩＳＫ７１２７に記載の方法により測定された引張り弾性率が３０００ＭＰａ以上とされていることが好ましい。さらに、原反層２を構成する樹脂組成物には、超臨界逆相蒸発法によってベシクルに分散剤を内包させた分散剤内包ベシクルが添加されていることが重要である。また、当該樹脂組成物に対して、顔料を添加することにより、化粧シート１に優れた隠蔽性を付与することができる。 At this time, it is preferable that the said original fabric sheet 2 is set to 3000 MPa or more of the tensile elasticity modulus measured by the method of JISK7127. Further, the resin composition constituting the raw layer 2, it is important that the dispersing agent encapsulating vesicles encasing an dispersant Therefore vesicles supercritical reverse phase evaporation method has been added. Moreover, the concealability which was excellent in the decorative sheet 1 can be provided by adding a pigment with respect to the said resin composition.
また、当該原反層２を構成する樹脂組成物に対して、超臨界逆相蒸発法によってベシクルに分散剤を内包させた分散剤内包ベシクルを添加することで、樹脂組成物中における無機フィラーが二次凝集することを防止して、無機フィラーを３０〜７０質量％という高い充填率にて添加することを可能とするので、樹脂組成物の樹脂材料の一部を、樹脂材料よりも安価な無機フィラーに置換して化粧シート１の低廉化を図ることができる。 Moreover, the the resin composition constituting the raw layer 2, by thus adding a dispersing agent encapsulating vesicles encasing an dispersant vesicles supercritical reverse phase evaporation method, the inorganic filler in the resin composition Is prevented from secondary agglomeration, and an inorganic filler can be added at a high filling rate of 30 to 70% by mass. Therefore, a part of the resin material of the resin composition is less expensive than the resin material. It is possible to reduce the cost of the decorative sheet 1 by replacing with an inorganic filler.
その上、超臨界逆相蒸発法によってベシクルに分散剤を内包させた分散剤内包ベシクルを添加して、樹脂組成物内における無機フィラーの二次凝集を抑制し、無機フィラーを均一に分散させることができるので、二次凝集に起因する樹脂組成物の機械的強度の低下や耐後加工性の悪化が生じることがなく、機械的強度・耐後加工性に優れた化粧シート１を提供することができる。特に、当該分散剤内包ベシクルをリン脂質からなる外膜を具備するリポソームとすることにより、ポリオレフィン系樹脂と分散剤内包ベシクルとの相溶性を極めて良好なものとすることができるので、樹脂組成物中において優れた分散性を実現することができる。 Moreover, by adding a dispersing agent encapsulating vesicles encasing an dispersant Therefore vesicles supercritical reverse phase evaporation method, to suppress secondary aggregation of the inorganic filler in the resin composition, uniformly dispersing the inorganic filler Therefore, there is provided a decorative sheet 1 that is excellent in mechanical strength and post-processing resistance without causing a decrease in mechanical strength or deterioration in post-processing resistance due to secondary aggregation. be able to. In particular, since the dispersion-encapsulating vesicle is a liposome having an outer membrane made of phospholipid, the compatibility between the polyolefin-based resin and the dispersant-encapsulating vesicle can be made extremely good. Excellent dispersibility can be achieved.
＜実施例１＞
実施例１においては、分散剤として１２−ヒドロキシステアリン酸マグネシウムを用いた分散剤内包ベシクル、無機フィラーとして平均粒子径２．０μｍの炭酸カルシウムを高密度ポリエチレンと同重量で配合した樹脂組成物に対して、２軸延伸加工を施した厚さ１００μｍの原反層２を具備する化粧シート１とした。
<Example 1>
In Example 1, a resin-encapsulating vesicle containing 12-hydroxy magnesium stearate as a dispersant and calcium carbonate having an average particle size of 2.0 μm as an inorganic filler in the same weight as high-density polyethylene were used. Thus, a decorative sheet 1 having an original fabric layer 2 having a thickness of 100 μm subjected to biaxial stretching was obtained.
具体的には、ＭＦＲ（メルトフローレート）が０．８ｇ／１０ｍｉｎ（１９０℃）の高密度ポリエチレン（ハイゼックス５３０５Ｅ；プライムポリマー社製）４１．５重量％に対して、上述の分散剤内包ベシクル１７重量％と、炭酸カルシウム（ソフトン１０００；白石カルシウム株式会社製）４１．５重量％とを添加して噛合い型２軸押出機を用いて溶融混練した後ストランドカット法によりペレタライズを実施し、樹脂組成物のペレットを得る。この樹脂組成物のペレットを単軸押出機による溶融製膜にてＴダイを用いて押出し、膜厚２００μｍの樹脂シートを成膜した。得られた当該シートを２軸延伸機にて１００μｍの厚さまで延伸して、原反層２としての原反シート２とした。次いで、当該原反シート２の一方の面に２液硬化型ウレタンインキ（Ｖ１８０：東洋インキ製造（株）製）にて絵柄印刷を施して絵柄印刷層３を形成し、また、原反シート２の他方の面にプライマーコートを施してプライマー層６を形成した。しかる後、原反シート２の絵柄印刷層３を形成した一方の面側に対して、下記の厚さ８０μｍの透明樹脂シート４からなる透明樹脂層４をドライラミネート用接着剤（タケラックＡ５４０：三井化学工業製；塗布量２ｇ／ｍ２ ）による接着剤層７を介してドライラミネート法にて貼り合わせた。次に貼り合わせたシートの透明樹脂層４の上面に、エンボス用の金型ロールを用いてプレスしてエンボス模様４ａを施した後、そのエンボス模様４ａ面上に２液硬化型ウレタントップコート（Ｗ１８４：ＤＩＣグラフィックス社製）を塗布量３ｇ／ｍ２にて塗布してトップコート層５を形成して図２に示す総厚１８４μｍの化粧シート１を得た。 Specifically, the dispersion-encapsulating vesicle 17 described above is based on 41.5% by weight of high density polyethylene (Hizex 5305E; manufactured by Prime Polymer Co., Ltd.) having an MFR (melt flow rate) of 0.8 g / 10 min (190 ° C.). % By weight and 41.5% by weight of calcium carbonate (Softon 1000; manufactured by Shiroishi Calcium Co., Ltd.), melt-kneaded using a meshing twin screw extruder, pelletized by a strand cutting method, and resin A pellet of the composition is obtained. The resin composition pellets were extruded using a T-die by melt film formation using a single screw extruder to form a resin sheet having a thickness of 200 μm. The obtained sheet was stretched to a thickness of 100 μm with a biaxial stretching machine to obtain an original fabric sheet 2 as an original fabric layer 2. Next, a pattern printing layer 3 is formed on one surface of the original fabric sheet 2 using a two-component curable urethane ink (V180: manufactured by Toyo Ink Manufacturing Co., Ltd.). A primer layer 6 was formed by applying a primer coat to the other surface of the substrate. Thereafter, the transparent resin layer 4 composed of the transparent resin sheet 4 having a thickness of 80 μm as described below is applied to the one side of the original sheet 2 on which the pattern printing layer 3 is formed (takelac A540: Mitsui). Bonding was carried out by a dry laminating method through an adhesive layer 7 with a chemical industry production amount; Next, the embossed pattern 4a is applied to the upper surface of the transparent resin layer 4 of the laminated sheet by using an embossing die roll, and then a two-component curable urethane topcoat (on the surface of the embossed pattern 4a). W184: manufactured by DIC Graphics Co., Ltd.) was applied at a coating amount of 3 g / m 2 to form the topcoat layer 5 to obtain a decorative sheet 1 having a total thickness of 184 μm shown in FIG.
＜実施例２＞
実施例２においては、ＭＦＲ（メルトフローレート）が０．８ｇ／１０ｍｉｎ（１９０℃）の高密度ポリエチレン（ハイゼックス５３０５Ｅ；プライムポリマー社製）５０重量％に対して、分散剤として１２−ヒドロキシステアリン酸マグネシウムを用いた分散剤内包ベシクル、無機フィラーとして平均粒子径２．０μｍの炭酸カルシウム５０重量％を配合した樹脂組成物に対して、２軸延伸加工を施した厚さ２００μｍの原反層２を具備する化粧シート１とした。その他の構成については、実施例１と同様である。
<Example 2>
In Example 2, 12-hydroxystearic acid was used as a dispersant with respect to 50% by weight of high density polyethylene (Hizex 5305E; manufactured by Prime Polymer Co., Ltd.) having an MFR (melt flow rate) of 0.8 g / 10 min (190 ° C.). Dispersion-encapsulating vesicles using magnesium and a resin composition containing 50% by weight of calcium carbonate having an average particle size of 2.0 μm as an inorganic filler were subjected to biaxial stretching and a 200 μm-thick original fabric layer 2 The decorative sheet 1 was provided. Other configurations are the same as those in the first embodiment.
引張試験の結果は、表１に示すように、実施例１，２および比較例１の化粧シート１において、化粧シートに要求される引張弾性率５００ＭＰａ以上２０００ＭＰａ以下、かつ、引張破断伸度２００％以上の条件を満たしていた。比較例２の化粧シート１については、化粧シートに要求される引張弾性率および引張破断伸度を満たしていなかった。これは、分散剤内包ベシクルを添加したか否かの違いであり、この結果から、分散剤内包ベシクルを添加することによって、樹脂材料に対して無機フィラーを添加した場合においても優れた引張強度を実現できることが明らかとなった。 The results of the tensile test are as shown in Table 1. In the decorative sheets 1 of Examples 1 and 2 and Comparative Example 1, the tensile modulus required for the decorative sheet is 500 MPa or more and 2000 MPa or less, and the tensile elongation at break is 200%. The above conditions were satisfied. The decorative sheet 1 of Comparative Example 2 did not satisfy the tensile elastic modulus and tensile elongation at break required for the decorative sheet. This is the difference in whether or not a dispersant-encapsulating vesicle was added. From this result, it was found that excellent tensile strength was obtained even when an inorganic filler was added to a resin material by adding a dispersant-encapsulating vesicle. It became clear that it could be realized.
Ｖカット曲げ加工適性試験の結果は、表１に示すように、実施例１，２および比較例１の化粧シート１において白化・亀裂などが生じることなくＶカット曲げ加工を行うことができた。比較例２の化粧シート１においては、化粧シートとして容認することができない白化・亀裂が認められた。この結果から、分散剤内包ベシクルを添加することによって、優れた耐加工性を維持しながら、樹脂材料の一部を無機フィラーに置換することが可能であることが明らかとなった。 As a result of the V-cut bending workability test, as shown in Table 1, the V-cut bending process could be performed without whitening or cracking in the decorative sheets 1 of Examples 1 and 2 and Comparative Example 1. Comparative Example 2 of the decorative sheet 1 your information, whitening, cracks that can not be accepted as decorative sheet was observed. From this result, it became clear that by adding the dispersant-encapsulating vesicle , it is possible to replace a part of the resin material with an inorganic filler while maintaining excellent workability.
以上の検討結果から、分散剤内包ベシクルを添加することにより、樹脂組成物に対して多量の無機フィラーを添加した場合においても、当該分散剤内包ベシクルが高分散する作用によって無機フィラーの二次凝集を防止し、化粧シートに要求される引張強度および耐後加工性を備えた化粧シート１を得ることができることが明らかとなった。 From the above study results, by adding a dispersing agent encapsulating vesicles, in the case of adding a large amount of inorganic filler relative to the resin composition also secondary aggregation of the inorganic filler by the action of the dispersing agent encapsulating vesicles are highly dispersed It was revealed that the decorative sheet 1 having the tensile strength and post-processing resistance required for the decorative sheet can be obtained.
本発明の化粧シート１および化粧シート１の製造方法は、上記の実施形態および実施例に限定されるものではなく、発明の特徴を損なわない範囲において種々の変更が可能である。 The decorative sheet 1 and the manufacturing method of the decorative sheet 1 of the present invention are not limited to the above-described embodiments and examples, and various modifications are possible within a range that does not impair the features of the invention.
Claims (6)
前記樹脂層のうちの１層が、ポリオレフィン系樹脂を主成分として無機フィラーが添加された樹脂組成物から構成され１軸延伸加工または２軸延伸加工が施された厚さ１００〜３００μｍの原反層
とされた化粧シートであって、
前記原反層は、前記樹脂組成物に、さらに超臨界逆相蒸発法によってベシクルに分散剤を内包させた分散剤内包ベシクルを添加して形成したことを特徴とする化粧シート。 Consisting of multiple resin layers,
One of the resin layers is composed of a resin composition containing a polyolefin resin as a main component and added with an inorganic filler, and is uniaxially stretched or biaxially stretched to a thickness of 100 to 300 μm. A layered decorative sheet,
The original Hanso is decorative sheet, wherein the resin composition was formed by adding further dispersing agent encapsulating vesicles were contained a dispersant depending on vesicle supercritical reverse phase evaporation method.
前記樹脂層のうちの１層を、主成分とするポリオレフィン系樹脂に無機フィラーと超臨界逆相蒸発法によってベシクルに分散剤を内包させた分散剤内包ベシクルとを添加した樹脂組成物に対して、１軸延伸加工または２軸延伸加工を施した厚さ１００〜３００μｍの原反層として形成することを特徴とする化粧シートの製造方法。For a resin composition in which one of the resin layers is added with a polyolefin-based resin as a main component and an inorganic filler and a dispersant-encapsulating vesicle in which a dispersant is encapsulated by a supercritical reverse phase evaporation method A method for producing a decorative sheet, comprising forming a raw fabric layer having a thickness of 100 to 300 μm subjected to a uniaxial stretching process or a biaxial stretching process.
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| JP2019042958A (en) * | 2017-08-30 | 2019-03-22 | 凸版印刷株式会社 | Decorative sheet and decorative plate |
| JP6953909B2 (en) * | 2017-08-30 | 2021-10-27 | 凸版印刷株式会社 | Decorative sheet and decorative board |
| JP7484170B2 (en) * | 2019-01-23 | 2024-05-16 | Ｔｏｐｐａｎホールディングス株式会社 | Non-flammable sheet |
| JP7222291B2 (en) * | 2019-03-29 | 2023-02-15 | 凸版印刷株式会社 | Incombustible decorative sheet |
| JP6704151B1 (en) | 2019-04-15 | 2020-06-03 | 株式会社Ｔｂｍ | Inorganic substance powder-filled resin composition and molded article |
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| JPH1024529A (en) * | 1996-07-11 | 1998-01-27 | Dainippon Printing Co Ltd | Decorative sheet |
| CN1088138C (en) * | 1996-09-04 | 2002-07-24 | 陶氏化学公司 | Floor, wall or ceiling covering |
| JP2001287324A (en) * | 2000-04-10 | 2001-10-16 | Toppan Printing Co Ltd | Decorative sheet |
| JP2005212386A (en) * | 2004-01-30 | 2005-08-11 | Sekisui Chem Co Ltd | Decorative sheet |
| JP2006298840A (en) * | 2005-04-21 | 2006-11-02 | Konica Minolta Medical & Graphic Inc | Method for producing liposome-containing preparation and liposome-containing preparation |
| JP2007100051A (en) * | 2005-10-07 | 2007-04-19 | Masamitsu Nagahama | Gas-barrier resin product, manufacturing method of gas-barrier resin product and use of particulate |
| JP2007100045A (en) * | 2005-10-07 | 2007-04-19 | Masamitsu Nagahama | Polyolefin resin product, manufacturing method of polyolefin resin product and use of particulate |
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