JP2007051240A - Adhesive composition - Google Patents

Adhesive composition Download PDF

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JP2007051240A
JP2007051240A JP2005238488A JP2005238488A JP2007051240A JP 2007051240 A JP2007051240 A JP 2007051240A JP 2005238488 A JP2005238488 A JP 2005238488A JP 2005238488 A JP2005238488 A JP 2005238488A JP 2007051240 A JP2007051240 A JP 2007051240A
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resin
adhesive composition
meth
softening point
acrylic
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Yuya Sugano
祐哉 菅野
Shinya Miyata
進也 宮田
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Chuo Rika Kogyo Corp
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Chuo Rika Kogyo Corp
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Abstract

<P>PROBLEM TO BE SOLVED: To provide an adhesive composition having improved blocking resistance which enables its application to a base material at the construction site. <P>SOLUTION: The adhesive composition comprises 100 pts.wt. hard resin (A) having a softening point of 170-350°C and 1-200 pts.wt. soft resin (B) having a softening point of 75-100°C. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

この発明は、基材に塗工した後、乾燥して得られる、ヒートシール可能な接着剤層含有化粧シートを製造できる接着剤組成物に関する。   The present invention relates to an adhesive composition capable of producing a heat-sealable adhesive layer-containing decorative sheet obtained by coating a substrate and then drying.

新築住宅に入居したり、新しい家具を購入した場合、めまいや皮膚炎等が生じる、いわゆる「シックハウス症候群」が生じる場合がある。これは、プラスチック基材、化粧シート等を貼り合わせた住宅用建材や家具用建材を製造するために使用される従来の水性エマルジョン型接着剤に含まれる、各種の可塑剤や有機溶剤等の揮発性有機化合物(以後、「VOCs」と称する。)が原因であると考えられている。このVOCsを使用しない接着剤が種々検討されている(特許文献1等参照)。   If you move into a new house or purchase new furniture, you may experience dizziness or dermatitis, the so-called “sick house syndrome”. This is because of the volatilization of various plasticizers and organic solvents, etc. contained in conventional water-based emulsion adhesives used to manufacture residential building materials and furniture building materials that are bonded together with plastic substrates and decorative sheets. Organic compounds (hereinafter referred to as “VOCs”) are considered to be the cause. Various adhesives that do not use these VOCs have been studied (see Patent Document 1).

上記特許文献1に記載の接着剤組成物を用いる場合、中質繊維板(MDF)等の基材に当該接着剤組成物を塗布し、その接着剤組成物がwet(未乾燥)の状態で化粧紙を貼り合わせ、次いで、乾燥することにより、化粧紙をMDF等の基材上に貼り合わせることができる。   When the adhesive composition described in Patent Document 1 is used, the adhesive composition is applied to a substrate such as a medium fiberboard (MDF), and the adhesive composition is in a wet (undried) state. The decorative paper can be bonded onto a substrate such as MDF by bonding the decorative paper and then drying.

この場合、施工現場で接着剤組成物を基材上に塗布する必要がある。これに対し、前もって、接着剤組成物を化粧紙に塗布しておき、施工現場で、接着層を有する化粧紙を基材上に載せ、熱を加えて化粧紙を基材に貼り付ける方法を採用できると、施工現場での手間を省くことができて好ましい。   In this case, it is necessary to apply the adhesive composition onto the substrate at the construction site. On the other hand, a method in which the adhesive composition is applied to the decorative paper in advance, the decorative paper having the adhesive layer is placed on the base material at the construction site, and the decorative paper is attached to the base material by applying heat. If it can be adopted, it is preferable because it saves labor on the construction site.

特開2004−269858号公報JP 2004-269858 A

しかしながら、上記特許文献1に記載の接着剤組成物を用いた場合、接着剤組成物を化粧紙に塗工して接着剤層を形成した状態で保存すると、この接着剤組成物の成分の組合せによっては、ブロッキングが生じ、巻き戻しや剥離が困難になる等、基材への貼り合わせ時の作業効率が悪化する場合がある。   However, when the adhesive composition described in Patent Document 1 is used, when the adhesive composition is applied to a decorative paper and stored in a state where an adhesive layer is formed, the combination of the components of the adhesive composition Depending on the case, blocking may occur, and it may become difficult to unwind or peel off, and the working efficiency at the time of bonding to the substrate may deteriorate.

そこで、この発明は、施工現場で、基材への貼り合わせを可能とする、耐ブロッキング性の向上した接着剤組成物を得ることを目的とする。   Accordingly, an object of the present invention is to obtain an adhesive composition with improved blocking resistance that enables bonding to a substrate at a construction site.

この発明は、軟化点が170〜350℃の硬質樹脂(A)100重量部あたり、軟化点が75〜100℃の軟質樹脂(B)を1〜200重量部含有する接着剤組成物を用いることにより、上記の課題を解決したのである。   The present invention uses an adhesive composition containing 1 to 200 parts by weight of a soft resin (B) having a softening point of 75 to 100 ° C. per 100 parts by weight of a hard resin (A) having a softening point of 170 to 350 ° C. Thus, the above problem has been solved.

この発明にかかる接着剤組成物を用いることにより、耐ブロッキング性等を向上させることができる。このため、この接着剤組成物を基材に塗布して得られるヒートシール層含有化粧シートは、使用までに保存する際のブロッキング発生を抑制することができる。   By using the adhesive composition according to the present invention, blocking resistance and the like can be improved. For this reason, the heat seal layer-containing decorative sheet obtained by applying this adhesive composition to a substrate can suppress the occurrence of blocking when stored before use.

また、上記の接着剤組成物は、ヒートシール性を有するので、この接着剤組成物を基材に塗布して得られるヒートシール層含有化粧シートは、ヒートシール可能となり、このヒートシール層含有化粧シートを基材に貼る際は、このヒートシール層含有化粧シートを基材に載せ、化粧シートの上から加熱することによって、化粧シートを基材に接合することができる。   Further, since the above adhesive composition has heat sealability, the heat-seal layer-containing decorative sheet obtained by applying this adhesive composition to a base material can be heat-sealed. When sticking a sheet | seat to a base material, this decorative sheet can be joined to a base material by mounting this heat seal layer containing decorative sheet on a base material, and heating from a top of a decorative sheet.

さらに、このヒートシール層含有化粧シートを基材に載せて貼り合わせる際に、巻き戻しや剥離が容易に可能となり、作業効率が向上する。   Furthermore, when this heat-seal layer-containing decorative sheet is placed on a substrate and bonded together, rewinding and peeling can be easily performed, and work efficiency is improved.

以下、この発明の実施形態を説明する。
この発明にかかる接着剤組成物は、所定の硬質樹脂(A)と所定の軟質樹脂(B)とを含有する組成物である。
Embodiments of the present invention will be described below.
The adhesive composition according to the present invention is a composition containing a predetermined hard resin (A) and a predetermined soft resin (B).

上記硬質樹脂(A)とは、軟化点が170〜350℃の樹脂をいい、175〜230℃の樹脂が好ましい。170℃より低いと、乾燥時の耐ブロッキング性が悪化する傾向にある。一方、350℃より高いと、低温接着性が劣る傾向にある。なお、上記軟化点は、高化式フローテスターで測定することができる。   The hard resin (A) refers to a resin having a softening point of 170 to 350 ° C., and a resin of 175 to 230 ° C. is preferable. When it is lower than 170 ° C., the blocking resistance at the time of drying tends to deteriorate. On the other hand, when it is higher than 350 ° C., the low-temperature adhesiveness tends to be inferior. The softening point can be measured with a Koka flow tester.

上記硬質樹脂(A)を構成する樹脂の例としては、酢酸ビニル樹脂、酢ビ−アクリル系樹脂、エチレン−酢酸ビニル系共重合体樹脂、(メタ)アクリル系樹脂、ウレタン系樹脂等があげられ、少なくとも1種の樹脂が用いられる。これらのうち、上記軟化点の条件を満たす樹脂が硬質樹脂(A)として用いられる。   Examples of the resin constituting the hard resin (A) include vinyl acetate resin, vinyl acetate-acrylic resin, ethylene-vinyl acetate copolymer resin, (meth) acrylic resin, urethane resin, and the like. At least one resin is used. Of these, a resin that satisfies the above softening point condition is used as the hard resin (A).

上記酢酸ビニル樹脂とは、酢酸ビニルの単独重合体をいい、上記酢ビ−アクリル系樹脂とは、酢酸ビニルと後述する(メタ)アクリル系単量体との共重合体をいう。また、エチレン−酢酸ビニル系共重合体樹脂とは、エチレンと酢酸ビニル又はこれを主体とするバーサチック酸ビニル等のビニルエステル混合物との共重合体をいう。なお、これらの樹脂には、その効果を損なわない範囲で、他の共重合単量体に由来する構成単位を含んでいてもよい。   The vinyl acetate resin refers to a homopolymer of vinyl acetate, and the vinyl acetate-acrylic resin refers to a copolymer of vinyl acetate and a (meth) acrylic monomer described later. The ethylene-vinyl acetate copolymer resin refers to a copolymer of ethylene and a vinyl ester mixture such as vinyl acetate or vinyl versatate based on this. These resins may contain structural units derived from other copolymerization monomers as long as the effects are not impaired.

上記(メタ)アクリル系樹脂とは、(メタ)アクリル系単量体の単独重合体又は共重合体をいう。上記(メタ)アクリル系単量体とは、(メタ)アクリル酸又はそのエステル化合物等をいい、(メタ)アクリル酸アルキルエステル、(メタ)アクリル酸系単量体、(メタ)アクリル酸アルコキシアルキルエステル等があげられ、重合に際しては、その1種を用いても、それらの2種以上の混合物を用いてもよい。   The said (meth) acrylic-type resin means the homopolymer or copolymer of a (meth) acrylic-type monomer. The said (meth) acrylic-type monomer means (meth) acrylic acid or its ester compound, (meth) acrylic-acid alkylester, (meth) acrylic-type monomer, (meth) acrylic-acid alkoxyalkyl Ester etc. are mentioned, In the case of superposition | polymerization, the 1 type may be used or those 2 or more types of mixtures may be used.

上記(メタ)アクリル酸アルキルエステルとしては、(メタ)アクリル酸メチル、(メタ)アクリル酸エチル、(メタ)アクリル酸ブチル、(メタ)アクリル酸2−エチルヘキシル、(メタ)アクリル酸シクロヘキシル、(メタ)アクリル酸ベンジル、(メタ)アクリル酸ラウリル、(メタ)アクリル酸ステアリル、(メタ)アクリル酸シクロヘキシル、イソボルニル(メタ)アクリレート等があげられる。   Examples of the (meth) acrylic acid alkyl ester include methyl (meth) acrylate, ethyl (meth) acrylate, butyl (meth) acrylate, 2-ethylhexyl (meth) acrylate, cyclohexyl (meth) acrylate, (meth Benzyl acrylate, lauryl (meth) acrylate, stearyl (meth) acrylate, cyclohexyl (meth) acrylate, isobornyl (meth) acrylate and the like.

上記(メタ)アクリル酸系単量体としては、アクリル酸又はメタクリル酸があげられる。
上記(メタ)アクリル酸アルコキシアルキルエステルとしては、(メタ)アクリル酸2−メトキシエチル、(メタ)アクリル酸2−エトキシエチル、(メタ)アクリル酸2−ブトキシエチル等があげられる。なお、この明細書において、「(メタ)アクリル」とは、「アクリル又はメタクリル」を意味する。
Examples of the (meth) acrylic acid monomer include acrylic acid and methacrylic acid.
Examples of the alkoxyalkyl ester of (meth) acrylic acid include 2-methoxyethyl (meth) acrylate, 2-ethoxyethyl (meth) acrylate, and 2-butoxyethyl (meth) acrylate. In this specification, “(meth) acryl” means “acryl or methacryl”.

上記ウレタン系樹脂とは、ポリイソシアネート、高分子ポリオール、及び必要により鎖伸長剤を反応させた重合体である。上記ポリイソシアネートとしては、トリレンジイソシアネート等の芳香族ポリイソシアネートがあげられ、上記高分子ポリオールとしては、ジカルボン酸とジオール類との縮合反応によるポリエステル系ポリオール等があげられる。   The urethane resin is a polymer obtained by reacting a polyisocyanate, a polymer polyol, and, if necessary, a chain extender. Examples of the polyisocyanate include aromatic polyisocyanates such as tolylene diisocyanate, and examples of the polymer polyol include polyester-based polyols obtained by condensation reaction of dicarboxylic acids and diols.

上記の中でも、硬質樹脂(A)としては、軟化点が170〜350℃のエチレン−酢酸ビニル系共重合体樹脂を用いることが好ましい。   Among these, as the hard resin (A), it is preferable to use an ethylene-vinyl acetate copolymer resin having a softening point of 170 to 350 ° C.

上記軟質樹脂(B)は、軟化点が75〜100℃の樹脂をいい、軟化点が78〜90℃の樹脂が好ましい。軟化点が100℃より高いと、低温接着性が悪化する傾向がある。また、軟化点が75℃より低いと、耐ブロッキング性が悪化する傾向にある。なお、上記軟化点は、高化式フローテスターで測定することができる。   The soft resin (B) refers to a resin having a softening point of 75 to 100 ° C, and a resin having a softening point of 78 to 90 ° C is preferable. When the softening point is higher than 100 ° C, the low-temperature adhesiveness tends to deteriorate. On the other hand, when the softening point is lower than 75 ° C., the blocking resistance tends to deteriorate. The softening point can be measured with a Koka flow tester.

上記軟質樹脂(B)を構成する樹脂の例としては、酢酸ビニル樹脂、酢ビ−アクリル系樹脂、エチレン−酢酸ビニル系共重合体樹脂、(メタ)アクリル系樹脂、スチレン−アクリル共重合体系樹脂、ウレタン系樹脂、軟質塩ビ系樹脂(可塑化されたもの)等があげられる。これらの樹脂は、2種以上を混合して用いてもよい。これらのうち、上記軟化点の条件を満たす樹脂が軟質樹脂(B)として用いられる。   Examples of the resin constituting the soft resin (B) include vinyl acetate resin, vinyl acetate-acrylic resin, ethylene-vinyl acetate copolymer resin, (meth) acrylic resin, styrene-acrylic copolymer resin. , Urethane resin, soft vinyl resin (plasticized) and the like. These resins may be used in combination of two or more. Of these, a resin that satisfies the above softening point condition is used as the soft resin (B).

上記酢酸ビニル樹脂、酢ビ−アクリル系樹脂、エチレン−酢酸ビニル系共重合体樹脂、(メタ)アクリル系樹脂、ウレタン系樹脂、塩ビ系樹脂としては、上記した硬質樹脂(A)の場合と同様の樹脂があげられる。また、上記軟質樹脂(B)として用いられるウレタン系樹脂の具体例としては、大日本インキ化学工業(株)製:ハイドランHW−D05等があげられる。   The vinyl acetate resin, vinyl acetate-acrylic resin, ethylene-vinyl acetate copolymer resin, (meth) acrylic resin, urethane resin, and vinyl chloride resin are the same as in the case of the hard resin (A) described above. Resin. Specific examples of the urethane-based resin used as the soft resin (B) include Dainippon Ink & Chemicals, Inc .: Hydran HW-D05.

上記の中でも、軟質樹脂(B)としては、軟化点が75〜100℃のエチレン−酢酸ビニル系共重合体樹脂や、軟化点が75〜100℃の、ウレタン系樹脂、(メタ)アクリル系樹脂、及びスチレン−アクリル共重合体系樹脂から選ばれる少なくとも1種の樹脂が特に好ましい。   Among them, as the soft resin (B), an ethylene-vinyl acetate copolymer resin having a softening point of 75 to 100 ° C., a urethane resin or a (meth) acrylic resin having a softening point of 75 to 100 ° C. And at least one resin selected from styrene-acrylic copolymer resins is particularly preferred.

上記の硬質樹脂(A)と軟質樹脂(B)との混合比は、硬質樹脂(A)100重量部あたり、軟質樹脂(B)1〜200重量部を用い、1〜100重量部が好ましく、1〜40重量部がさらに好ましい。1重量部より少ないと、低温接着性が悪化する傾向にある。一方、200重量部より多いと、耐熱性が低下する傾向にある。   The mixing ratio of the hard resin (A) and the soft resin (B) is preferably 1 to 100 parts by weight, using 1 to 200 parts by weight of the soft resin (B) per 100 parts by weight of the hard resin (A). 1-40 weight part is further more preferable. If it is less than 1 part by weight, the low-temperature adhesiveness tends to deteriorate. On the other hand, when it is more than 200 parts by weight, the heat resistance tends to decrease.

上記接着剤組成物は、任意の方法で製造することができる。このなかでも、上記の硬質樹脂(A)及び/又は軟質樹脂(B)として水性エマルジョンのものを用い、各成分を混合して、全体として水性エマルジョンとすると、得られる接着剤組成物の安定性、取扱性等の点で特に好ましい。   The said adhesive composition can be manufactured by arbitrary methods. Among these, when the above-mentioned hard resin (A) and / or soft resin (B) is an aqueous emulsion and each component is mixed to form an aqueous emulsion as a whole, the stability of the resulting adhesive composition Particularly preferable in terms of handling properties.

また、上記接着剤組成物には、この発明の目的及び効果に悪影響を与えない範囲で、多官能性架橋剤、沈降防止剤、増粘剤、流動性改良剤、消泡剤、抗菌剤、防黴剤、充填剤等の添加物を加えてもよい。   In addition, the adhesive composition has a multifunctional crosslinking agent, an anti-settling agent, a thickener, a fluidity improver, an antifoaming agent, an antibacterial agent, as long as the object and effects of the present invention are not adversely affected. Additives such as antifungal agents and fillers may be added.

上記接着剤組成物は、JAS輸出合板基準((財)日本合板検査会、「化粧合板」−「塩化ビニル化粧合板」、常態ピーリング試験)に記載の方法にしたがって測定した塩ビシート/合板の接着強度(23℃)が、通常、1.5kN/m以上となり、かつ、その組成から明らかなように、揮発性有機成分をほとんど含まないので、VOCs対策として有用である。   The above adhesive composition is a PVC sheet / plywood adhesion measured according to the method described in JAS Export Plywood Standards (Japan Plywood Inspection Association, “Coating Plywood”-“Vinyl Chloride Cosmetic Plywood”, Normal Peeling Test). The strength (23 ° C.) is usually 1.5 kN / m or more, and, as is clear from the composition thereof, since it contains almost no volatile organic component, it is useful as a measure against VOCs.

この発明にかかる接着剤組成物は、基材の一面に塗工することにより、ヒートシール可能な化粧シートの接着剤層として用いることができる。   The adhesive composition according to the present invention can be used as an adhesive layer of a heat-sealable decorative sheet by coating on one surface of a substrate.

上記ヒートシール可能な化粧シートに用いられる基材、すなわち、化粧シートの材質としては、特に限定されるものではなく、紙、不織布、プラスチックフィルム、プラスチックシート等を好適にあげることができる。   The material used for the heat-sealable decorative sheet, that is, the material of the decorative sheet is not particularly limited, and paper, non-woven fabric, plastic film, plastic sheet and the like can be preferably mentioned.

上記接着剤組成物を、上記したような基材の一方の面に塗工し、その後に乾燥させることにより、接着剤層が形成され、ヒートシール可能な化粧シート、すなわち、ヒートシール層含有化粧シートを得ることができる。   The adhesive composition is applied to one surface of the base material as described above, and then dried to form an adhesive layer, which is a heat-sealable decorative sheet, that is, a heat-seal layer-containing makeup. A sheet can be obtained.

上記のプラスチックフィルムやプラスチックシートとしては、ポリ塩化ビニル、ポリエチレンやポリプロピレン等のポリオレフィン、PET等のポリエステル類からなるフィルムやシートがあげられる。また、上記化粧シートとは、必要に応じて、外表面が印刷等によって意匠が施された紙、フィルム、シート等をいう。   Examples of the plastic film and plastic sheet include films and sheets made of polyvinyl chloride, polyolefins such as polyethylene and polypropylene, and polyesters such as PET. Moreover, the said decorative sheet means the paper, film, sheet | seat, etc. by which the design was given to the outer surface by printing etc. as needed.

上記の塗工方法としては、塗布、噴霧等による方法があげられる。   Examples of the coating method include coating, spraying, and the like.

この接着剤層含有化粧シートは、木質系材料等の基材に載せ、加圧・加熱することにより、上記基材に貼り合わせることができ、この接着剤層含有化粧シートを各種住宅建材用材料として用いることができる。上記木質系材料としては、合板、中質繊維板(MDF)、パーティクルボード(PB)等の木質ボード類があげられる。   This adhesive layer-containing decorative sheet can be attached to the above-mentioned base material by placing it on a base material such as a wood-based material, and applying pressure and heating. Can be used as Examples of the wood-based material include wood boards such as plywood, medium fiber board (MDF), and particle board (PB).

この発明にかかる接着剤層含有化粧シートの2枚を、接着剤層を有する面と有さない面とを向かい合わせて重ねた状態で、60℃で2kgf/mの圧力を加えて24時間放置しても、両者を容易に剥がすことができ、十分な耐ブロッキング性を有する。 In a state where two sheets of the adhesive layer-containing decorative sheet according to the present invention are stacked with the surface having the adhesive layer facing and the surface not having the adhesive layer facing each other, a pressure of 2 kgf / m 2 is applied at 60 ° C. for 24 hours. Even if left untreated, they can be easily peeled off and have sufficient blocking resistance.

以下、本発明を実施例を用いてより詳細に説明する。まず、試験方法を下記に示す。
[固形分の測定]
接着剤組成物を、JIS K 6833に記載の規定に従って測定した。
Hereinafter, the present invention will be described in more detail with reference to examples. First, the test method is shown below.
[Measurement of solid content]
The adhesive composition was measured according to the regulations described in JIS K 6833.

[常温タック性]
得られた試験体の接着剤層を指触し、タック性(粘着性)を下記の基準で評価した。
○:タック無し
△:一部タック有り
×:常温でタック有り
[Room temperature tackiness]
The adhesive layer of the obtained test specimen was touched with a finger, and tackiness (tackiness) was evaluated according to the following criteria.
○: No tack △: Partial tack ×: There is tack at room temperature

[ドライ貼り性]
得られた試験体の接着剤層を手で剥離させ、剥離面を目視にて確認し、下記の基準で評価した。
○:紙破した
△:紙破するが、部分的に界面剥離が見られた
×:界面剥離した
[Dry pasteability]
The adhesive layer of the obtained specimen was peeled by hand, the peeled surface was visually confirmed, and evaluated according to the following criteria.
○: Paper breakage △: Paper breakage, but partial interfacial peeling was observed ×: Interfacial peeling

[浸漬剥離試験(JISII類)]
得られた試験体を75mm×75mmに切断して試験片を得た。この試験片を70℃温水中に2時間浸漬後、60℃室温中で3時間乾燥した。乾燥後の試験片を目視観察し、下記の基準で評価した。
○:接着剤層の剥離は認められない、また、表面状態の異常は認められない
△:同一接着剤層の各側面の剥離していない部分が50mm以上
×:同一接着剤層の各側面の剥離していない部分が50mm未満
[Immersion peeling test (JIS II)]
The obtained specimen was cut into 75 mm × 75 mm to obtain a test piece. The specimen was immersed in warm water at 70 ° C. for 2 hours and then dried at 60 ° C. for 3 hours at room temperature. The test piece after drying was visually observed and evaluated according to the following criteria.
○: No peeling of the adhesive layer is observed, and no abnormality in the surface state is observed. Δ: The unpeeled portion of each side surface of the same adhesive layer is 50 mm or more. X: Each side surface of the same adhesive layer. Unpeeled part is less than 50mm

[耐ブロッキング性]
得られた試験体を50mm×50mmに切断して試験片を得た。この試験片2枚を、接着剤層同士を向かい合わせて重ねた状態で、60℃で2kgf/mの圧力を加えて24時間放置した。その後、重ね合わせた試験片を剥離し、その状態を目視観察し、下記の基準で評価した。
5:剥離時に、抵抗なく剥離した
4:剥離時に、若干、音を発しながら剥離した
3:剥離時に、連続的に音を発しながら剥離した
2:剥離時に、一方の接着剤層の一部が他方に転写した
1:剥離時に、一方の接着剤層の全面が他方に転写した
[Blocking resistance]
The obtained specimen was cut into 50 mm × 50 mm to obtain a test piece. The two test pieces were left to stand for 24 hours at 60 ° C. with a pressure of 2 kgf / m 2 in a state where the adhesive layers were stacked face to face. Thereafter, the overlapped test pieces were peeled off, and the state was visually observed and evaluated according to the following criteria.
5: Peeled without resistance at the time of peeling 4: Peeled off with a slight sound at the time of peeling 3: Peeled off with a continuous sound at the time of peeling 2: Part of one adhesive layer was peeled off at the time of peeling Transferred to the other 1: When peeled, the entire surface of one adhesive layer was transferred to the other

[ヒートシール性]
各実施例及び比較例において、ヒートシール層含有化粧シートとMDFとを貼り合わせる際の様子を観察し、下記の基準で評価した。
○:両者は、問題なく貼り合わされた
×:両者を接合した際、貼り合わされない部分が生じた
[Heat sealability]
In each Example and Comparative Example, the state when the heat-seal layer-containing decorative sheet and MDF were bonded together was observed and evaluated according to the following criteria.
○: Both were pasted together without any problem ×: When both were joined, there was a part that was not pasted

(使用原料)
接着剤の原料として使用したものの製品名と略号とを下記に示す。
(硬質樹脂(A))
・住友化学工業(株)製、スミカフレックスS−305HQ(略号:S305HQ)(エチレン−酢酸ビニル系共重合体樹脂、ガラス転移温度(Tg):7℃、軟化点:180℃、固形分:50重量%)
・昭和高分子(株)製、ポリゾールEVA AD−13(略号:AD13)(エチレン−酢酸ビニル系共重合体樹脂、Tg:13℃、軟化点:190℃、固形分:55重量%)
・三洋化成工業(株)製、サンプレンUXA−3005(略号:UXA3005)(ウレタン系樹脂、軟化点:128℃、固形分:40重量%)
(Raw materials used)
Product names and abbreviations used as raw materials for adhesives are shown below.
(Hard resin (A))
Sumitomo Chemical Co., Ltd., SUMIKAFLEX S-305HQ (abbreviation: S305HQ) (ethylene-vinyl acetate copolymer resin, glass transition temperature (Tg): 7 ° C., softening point: 180 ° C., solid content: 50 weight%)
・ Polysol EVA AD-13 (abbreviation: AD13) manufactured by Showa Polymer Co., Ltd. (ethylene-vinyl acetate copolymer resin, Tg: 13 ° C., softening point: 190 ° C., solid content: 55% by weight)
・ Sanpuren UXA-3005 (abbreviation: UXA3005) manufactured by Sanyo Chemical Industries, Ltd. (urethane resin, softening point: 128 ° C., solid content: 40% by weight)

(軟質樹脂(B))
・第一工業製薬(株)製、F−8744D(略号:F8744D)(ウレタン系樹脂、軟化点:80℃、固形分:40重量%)
・中央理化工業(株)製、リカボンドET−910(略号:ET910)(スチレン−アクリル系共重合樹脂、軟化点:72℃、固形分:40重量%)
・中央理化工業(株)製、リカボンドAP−25H(略号:AP25H)(アクリル酸系共重合樹脂、軟化点:40℃、固形分:52重量%)
(Soft resin (B))
・ F-8744D (abbreviation: F8744D) manufactured by Daiichi Kogyo Seiyaku Co., Ltd. (urethane resin, softening point: 80 ° C., solid content: 40% by weight)
・ Rikabond ET-910 (abbreviation: ET910) manufactured by Chuo Rika Kogyo Co., Ltd. (styrene-acrylic copolymer resin, softening point: 72 ° C., solid content: 40% by weight)
・ Rikabond AP-25H (abbreviation: AP25H) manufactured by Chuo Rika Kogyo Co., Ltd. (acrylic acid copolymer resin, softening point: 40 ° C., solid content: 52% by weight)

(基材)
・ホクシン(株)製:スターウッドTFB−TSMOA(EO)(略号:MDF)(中質繊維板)
(Base material)
-Hokushin Co., Ltd .: Starwood TFB-TSMOA (EO) (abbreviation: MDF) (medium fiberboard)

(実施例1〜2、比較例1〜4)
表1に記載の各成分を表1に記載の重量部(固形分)で混合し、接着剤組成物を作製した。次いで、化粧紙(日本デコール(株)製:プレコート紙)の裏面に、得られた組成物を、30g/m(wet量)となるように、バーコーダー#20を用いて塗工した。その後、100℃で30秒間乾燥させた後、23℃、50%Rhの条件下で24時間養生して、ヒートシール層含有化粧シートを得た。得られたシートをMDFに載せ、3kgf/cm、200℃の条件下でヒートロール(1パス)して貼り合わせた。そして、上記の方法に従って、評価した。その結果を表1に示す。
(Examples 1-2, Comparative Examples 1-4)
Each component described in Table 1 was mixed in parts by weight (solid content) described in Table 1 to prepare an adhesive composition. Subsequently, the obtained composition was applied to the back surface of a decorative paper (manufactured by Nippon Decor Co., Ltd .: precoated paper) using a bar coder # 20 so as to be 30 g / m 2 (wet amount). Then, after drying for 30 seconds at 100 ° C., curing was performed under conditions of 23 ° C. and 50% Rh for 24 hours to obtain a heat seal layer-containing decorative sheet. The obtained sheet was placed on MDF and bonded by heat roll (1 pass) under the conditions of 3 kgf / cm 2 and 200 ° C. And it evaluated in accordance with said method. The results are shown in Table 1.

Figure 2007051240
Figure 2007051240

Claims (6)

軟化点が170〜350℃の硬質樹脂(A)100重量部あたり、軟化点が75〜100℃の軟質樹脂(B)を1〜200重量部含有する接着剤組成物。   An adhesive composition containing 1 to 200 parts by weight of a soft resin (B) having a softening point of 75 to 100 ° C per 100 parts by weight of a hard resin (A) having a softening point of 170 to 350 ° C. 上記の硬質樹脂(A)及び上記軟質樹脂(B)は、それぞれ、酢酸ビニル樹脂、酢ビ−アクリル系樹脂、エチレン−酢酸ビニル系共重合体樹脂、(メタ)アクリル系樹脂、及びウレタン系樹脂からなる群から選ばれる、少なくとも1種の樹脂からなる請求項1に記載の接着剤組成物。   The hard resin (A) and the soft resin (B) are a vinyl acetate resin, a vinyl acetate-acrylic resin, an ethylene-vinyl acetate copolymer resin, a (meth) acrylic resin, and a urethane resin, respectively. The adhesive composition according to claim 1, comprising at least one resin selected from the group consisting of: 上記軟質樹脂(B)は、軟化点が75〜100℃の、ウレタン系樹脂、(メタ)アクリル系樹脂、及びスチレン−アクリル共重合体系樹脂から選ばれる少なくとも1種の樹脂である請求項1又は2に記載の接着剤組成物。   The soft resin (B) is at least one resin selected from urethane resins, (meth) acrylic resins, and styrene-acrylic copolymer resins having a softening point of 75 to 100 ° C. The adhesive composition according to 2. 上記組成物が水性エマルジョンである請求項1乃至3のいずれかに記載の接着剤組成物。   The adhesive composition according to any one of claims 1 to 3, wherein the composition is an aqueous emulsion. ヒートシール可能な化粧シートの接着剤層に用いられる請求項1乃至4のいずれかに記載の接着剤組成物。   The adhesive composition according to any one of claims 1 to 4, which is used for an adhesive layer of a heat-sealable decorative sheet. 請求項1乃至4のいずれかに記載の接着剤組成物を、基材に塗布した後、乾燥して形成されたヒートシール可能な化粧シート。   A heat-sealable decorative sheet formed by applying the adhesive composition according to any one of claims 1 to 4 to a substrate and then drying it.
JP2005238488A 2005-08-19 2005-08-19 Adhesive composition Pending JP2007051240A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110157250A (en) * 2019-05-20 2019-08-23 广东艺都科技股份有限公司 Aqueous Low Temperature Thermal mounting coating and preparation method thereof
CN110964463A (en) * 2019-12-20 2020-04-07 湖南达美程智能科技股份有限公司 Quick-drying environment-friendly glue suitable for toy book mounting process and preparation method thereof

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08333565A (en) * 1994-07-29 1996-12-17 New Oji Paper Co Ltd Heat-sensitive tacky adhesive agent and heat-sensitive tacky adhesive sheet
JP2001207151A (en) * 2000-01-27 2001-07-31 Mitsubishi Chemicals Corp Heat sensitive tacky agent composition and heat sensitive tacky sheet
JP2002302265A (en) * 2001-04-02 2002-10-18 Ishikawajima Harima Heavy Ind Co Ltd Storing device and storing method
JP2004269858A (en) * 2003-02-20 2004-09-30 Chuo Rika Kogyo Corp Adhesive composition

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH08333565A (en) * 1994-07-29 1996-12-17 New Oji Paper Co Ltd Heat-sensitive tacky adhesive agent and heat-sensitive tacky adhesive sheet
JP2001207151A (en) * 2000-01-27 2001-07-31 Mitsubishi Chemicals Corp Heat sensitive tacky agent composition and heat sensitive tacky sheet
JP2002302265A (en) * 2001-04-02 2002-10-18 Ishikawajima Harima Heavy Ind Co Ltd Storing device and storing method
JP2004269858A (en) * 2003-02-20 2004-09-30 Chuo Rika Kogyo Corp Adhesive composition

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110157250A (en) * 2019-05-20 2019-08-23 广东艺都科技股份有限公司 Aqueous Low Temperature Thermal mounting coating and preparation method thereof
CN110157250B (en) * 2019-05-20 2021-07-13 广东艺都科技有限公司 Water-based low-temperature hot mounting coating and preparation method thereof
CN110964463A (en) * 2019-12-20 2020-04-07 湖南达美程智能科技股份有限公司 Quick-drying environment-friendly glue suitable for toy book mounting process and preparation method thereof

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