JP2005139397A - Peelable pressure-bonded recording paper - Google Patents
Peelable pressure-bonded recording paper Download PDFInfo
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- JP2005139397A JP2005139397A JP2003380176A JP2003380176A JP2005139397A JP 2005139397 A JP2005139397 A JP 2005139397A JP 2003380176 A JP2003380176 A JP 2003380176A JP 2003380176 A JP2003380176 A JP 2003380176A JP 2005139397 A JP2005139397 A JP 2005139397A
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Landscapes
- Adhesive Tapes (AREA)
- Adhesives Or Adhesive Processes (AREA)
- Credit Cards Or The Like (AREA)
Abstract
Description
本発明は、安定した耐ブロッキング性を有すると共に印刷適性及び印字適性に優れた再剥離性圧着記録用紙に関するものである。 The present invention relates to a releasable pressure-sensitive recording paper having stable blocking resistance and excellent printability and printability.
近年、銀行、クレジット会社、保険会社、官庁等から各個人宛に貯金、残金状況等個人情報を通知する手段として、親展はがきが普及している。親展はがきは基材に感圧接着剤を塗布した後、共通情報はオフセット印刷、グラビア印刷等で行い、個人情報はレーザービーム方式、インクジェット方式等で印刷した後、印刷面同士を適度の圧力を加えることで接着させ、各個人に郵送された後、再剥離することで情報を得ることができる。 In recent years, private postcards have been widely used as means for notifying personal information such as savings, balances, etc. to individual individuals from banks, credit companies, insurance companies, government agencies, and the like. For confidential postcards, after applying a pressure sensitive adhesive to the base material, common information is printed by offset printing, gravure printing, etc. Personal information is printed by laser beam method, ink jet method, etc. It is possible to obtain information by adhering by adding, mailing to each individual, and then re-peeling.
これら再剥離性圧着記録用紙は、基材シートの少なくとも片面の一部に、天然ゴム、合成ゴムなどのいわゆる感圧接着剤基剤と、その感圧接着剤基剤の接着力を抑制する微細粒子充填剤とからなる感圧接着層が設けられており、一時的に接着するが必要時に容易に剥離できる機能を有するものが一般的である。 These releasable pressure-sensitive recording sheets have a fine structure that suppresses the adhesive force of a so-called pressure-sensitive adhesive base such as natural rubber and synthetic rubber and a pressure-sensitive adhesive base on at least a part of one side of the base sheet. A pressure-sensitive adhesive layer comprising a particle filler is provided, and generally has a function of temporarily adhering but easily peeling when necessary.
前記感圧接着剤は、黄変化、接着力の低下、硬化に代表されるように経時的に劣化（以下、老化現象という）する傾向があり、特に天然ゴムは老化現象による性能変化が著しい。一般に、感圧接着剤の老化現象は、大気中の酸素との接触及び紫外線吸収などによる酸化が主因とされている。また通常感圧接着剤層中に微細粒子充填剤が配合されているが、この微細粒子充填剤の配合量や分散状態によって接着強度が安定しないという問題がある。 The pressure-sensitive adhesive has a tendency to deteriorate with time (hereinafter referred to as aging phenomenon) as represented by yellowing, a decrease in adhesive force, and curing, and particularly natural rubber has a remarkable performance change due to the aging phenomenon. In general, the aging phenomenon of a pressure-sensitive adhesive is mainly caused by contact with oxygen in the atmosphere and oxidation due to ultraviolet absorption. Moreover, although the fine particle filler is normally mix | blended in a pressure sensitive adhesive layer, there exists a problem that adhesive strength is not stabilized by the compounding quantity and dispersion state of this fine particle filler.
そこで、感圧接着剤組成物の接着力を設計する場合には、上述した再剥離性圧着記録用紙の使用形態に起因する接着力の低下を考慮して、予め高い接着力を持つように調整される。しかしながら上記の再剥離性圧着記録用紙は、例えば、シートを巻き取った時の接触面、或いは、Ｚ字状に折り畳んだときのミシン目でブロッキングが生じ、印刷時あるいは成形時に給紙不能等のトラブルを生じるという問題があった。 Therefore, when designing the adhesive strength of the pressure-sensitive adhesive composition, it is adjusted in advance so as to have a high adhesive strength in consideration of the decrease in the adhesive strength caused by the use form of the above-described releasable pressure-sensitive adhesive recording paper. Is done. However, the above-mentioned releasable pressure-sensitive recording sheet has blocking on the contact surface when the sheet is wound or the perforation when folded into a Z-shape, and the paper cannot be fed at the time of printing or molding. There was a problem of causing trouble.
この種の、従来における再剥離性圧着記録用紙においては、主にブロッキング防止のために、感圧接着剤中に粒子径の大きな微粒子充填剤が添加されている。この微粒子充填剤として、無機粒子や小麦澱粉等を含めた有機粒子等の種々の例示があるが、いずれもそれらの実施例に記載の通り、粒子径が比較的大きな無機・有機粒子が最適とされている（例えば、特許文献１、２、３参照）。 In this type of conventional releasable pressure-sensitive recording paper, a fine particle filler having a large particle diameter is added to the pressure-sensitive adhesive mainly to prevent blocking. As the fine particle filler, there are various examples such as organic particles including inorganic particles and wheat starch, and as described in those examples, inorganic and organic particles having a relatively large particle diameter are optimal. (For example, see Patent Documents 1, 2, and 3).
しかし粒子径が比較的大きな粒子は、耐ブロッキング性には有効であるものの、表面凹凸が大きくなり、マット調になり、感圧接着層に印刷を施した場合、印刷面もマット調になり、印刷面の精彩が良くない。さらにインクジェットプリンターによる印字においては、インクの吸収性を阻害し、印字が滲んだり周辺がぼやけたりする等の問題も生じる。特に澱粉類は印刷時に摩擦などの外的要因により容易に表層部分の微粒子を飛散させ、印刷機やプリンターをその粉塵により汚染するばかりでなく、隠蔽接着後、再び剥離した時に印刷や印字が相対する面に微粒子ごと転移し、通知情報面を汚染するという重大な欠陥を有する。 However, particles having a relatively large particle size are effective for blocking resistance, but the surface unevenness becomes large, resulting in a matte tone, and when the pressure-sensitive adhesive layer is printed, the printed surface also becomes a matte tone, The print surface is not fine. Furthermore, in printing with an ink jet printer, the ink absorbability is hindered, causing problems such as blurring of the print or blurring of the periphery. Especially when starches are printed, the surface layer is easily scattered by external factors such as friction, and the printing machine and printer are not only contaminated by the dust, but also after printing and printing, the printing and printing are relative. It has a serious defect that the fine particles are transferred to the surface to be contaminated and the notification information surface is contaminated.
また印刷性やノンインパクト方式の印字について、感圧接着層に１〜３０μｍの熱可塑性粒子が含まれることを特徴とした再剥離性圧着記録用紙が優れているとされている（例えば、特許文献４参照）。しかしながら、印刷性やノンインパクト方式の印字については実施例に記載の通り改善されているが、特許文献４には感圧接着組成物、微粒子充填剤及び熱可塑性粒子の配合部数を適正にすることによるインクジェットプリンター適性について言及されていない。 Also, for printability and non-impact printing, a releasable pressure-sensitive recording sheet characterized in that the pressure-sensitive adhesive layer contains 1 to 30 μm thermoplastic particles is said to be excellent (for example, Patent Documents). 4). However, printability and non-impact printing have been improved as described in the examples, but in Patent Document 4, the number of parts of the pressure-sensitive adhesive composition, the fine particle filler and the thermoplastic particles should be made appropriate. Does not mention the suitability of inkjet printers.
本発明は、従来技術の上述の欠点を考慮してなされたものであり、粉落ち等の現象を抑制でき、耐ブロッキング性、かつ印刷・印字適性に優れた再剥離性圧着記録用紙を提供することにある。 The present invention has been made in view of the above-mentioned drawbacks of the prior art, and provides a releasable pressure-sensitive recording paper that can suppress a phenomenon such as powder falling and has excellent blocking resistance and printing / printability. There is.
本発明者は、この課題が、常温、常圧の通常状態では粘着性、接着性を示さず、加圧時に接着性を示し、圧着後に剥離可能である感圧接着剤組成物よりなる感圧接着層を、少なくとも片面に有する再剥離性圧着記録用紙において、該感圧接着層に前記感圧接着剤組成物１００重量部に対し、平均粒子径が１〜２０μｍの微粒子充填剤が５０〜１５０重量部含有されており、かつ熱可塑性樹脂が１〜３０重量部含有されることを特徴とする再剥離性圧着記録用紙によって解決されることを見出した。
該感圧接着層に含有される熱可塑性樹脂は平均粒子径１０μｍ以下のワックス類であることが好ましい。
The inventor of the present invention has a pressure-sensitive adhesive composition which does not exhibit tackiness and adhesiveness under normal conditions of normal temperature and normal pressure, exhibits adhesiveness when pressed, and can be peeled after pressure bonding. In a releasable pressure-sensitive recording paper having an adhesive layer on at least one side, 50 to 150 fine particle fillers having an average particle diameter of 1 to 20 μm are added to the pressure sensitive adhesive layer with respect to 100 parts by weight of the pressure sensitive adhesive composition. It has been found that this is solved by a releasable pressure-sensitive recording paper containing 1 part by weight and 1-30 parts by weight of a thermoplastic resin.
The thermoplastic resin contained in the pressure-sensitive adhesive layer is preferably a wax having an average particle size of 10 μm or less.
本発明の再剥離性圧着記録用紙は、該感圧接着層に、前記感圧接着剤組成物１００重量部に対し、平均粒子径が１〜２０μｍの微粒子充填剤が５０〜１５０部重量部含有されており、かつ熱可塑性樹脂類を１〜３０重量部含有されることを特徴とすることで、剥離強度、ブロッキング性、印刷適性、印字適性など優れた効果を奏する。
更に本発明の再剥離性圧着記録用紙は、該感圧接着層に含有される熱可塑性樹脂が平均粒子径１０μｍ以下のワックス類であることで、上記諸特性について優れた効果を奏する。
The releasable pressure-sensitive recording sheet of the present invention contains 50 to 150 parts by weight of a fine particle filler having an average particle diameter of 1 to 20 μm with respect to 100 parts by weight of the pressure-sensitive adhesive composition. And 1 to 30 parts by weight of a thermoplastic resin is contained, and excellent effects such as peel strength, blocking property, printability, and printability are exhibited.
Furthermore, the releasable pressure-sensitive recording sheet of the present invention exhibits excellent effects on the above-mentioned various characteristics because the thermoplastic resin contained in the pressure-sensitive adhesive layer is a wax having an average particle diameter of 10 μm or less.
以下、本発明について更に詳しく説明する。即ち本発明の再剥離性圧着記録用紙は、基材シートの少なくとも片面に感圧接着剤組成物を塗工して感圧接着層とする再剥離性圧着記録用紙において、前記感圧接着剤組成物１００重量部に対し、平均粒子径が１〜２０μｍの微粒子充填剤が５０〜１５０重量部含有されており、かつ熱可塑性樹脂が１〜３０重量部含有されることによって、粉落ち等の現象を抑制でき、耐ブロッキング性と印刷・印字適性に優れた再剥離性圧着記録用紙を得ることが可能になった。 Hereinafter, the present invention will be described in more detail. That is, the releasable pressure-sensitive recording sheet of the present invention is the pressure-sensitive adhesive composition in the releasable pressure-sensitive recording sheet in which a pressure-sensitive adhesive composition is applied to at least one side of a base sheet to form a pressure-sensitive adhesive layer. When 100 to 100 parts by weight of the product contains 50 to 150 parts by weight of a fine particle filler having an average particle diameter of 1 to 20 μm and 1 to 30 parts by weight of a thermoplastic resin, a phenomenon such as powder falling This makes it possible to obtain a releasable pressure-sensitive recording paper excellent in blocking resistance and printing / printability.
また、該感圧接着層に含有される熱可塑性樹脂が平均粒子径１０μｍ以下のワックス類であることで、上記諸特性の改良効果をより確実にすることができる。 In addition, since the thermoplastic resin contained in the pressure-sensitive adhesive layer is a wax having an average particle diameter of 10 μm or less, the effect of improving the above characteristics can be further ensured.
本発明における微粒子充填剤としては、シリカ、炭酸カルシウム、カオリン、水酸化アルミニウム、クレー、酸化マグネシウム、水酸化マグネシウム、タルク、酸化チタン、酸化亜鉛、硫酸カルシウム、硫酸バリウム、ポリエチレン、ポリプロピレン、ポリスチレン、尿素ホルマリン樹脂等の公知のものの中から一種または二種以上を使用することができる。 As the fine particle filler in the present invention, silica, calcium carbonate, kaolin, aluminum hydroxide, clay, magnesium oxide, magnesium hydroxide, talc, titanium oxide, zinc oxide, calcium sulfate, barium sulfate, polyethylene, polypropylene, polystyrene, urea One or two or more of known materials such as formalin resins can be used.
本発明においては、上記感圧接着剤組成物１００重量部に対して平均粒子径が１〜２０μｍ、好ましくは１〜１５μｍ、特に好ましくは１〜１０μｍの微粒子充填剤を５０〜１５０重量部、好ましくは６０〜１３０重量部添加する。平均粒子径が１μｍに満たない微粒子充填剤を使用した場合にはブロッキングし易くなり、２０μｍを超える微粒子充填剤を使用した場合には塗工層からの脱落がし易くなる等の問題や網点再現性等の印字適性が悪くなる等の問題がある。また、１〜２０μｍの微粒子充填剤の使用量が感圧接着剤組成物１００重量部に対して５０重量部未満では、感圧接着層を有しないシートと接着させた後に該感圧接着層を有しないシート面を破壊することなく剥離することが困難になり、１５０重量部を超える場合には、感圧接着層を有しないシートとの剥離強度が大きく低下する。 In the present invention, 50 to 150 parts by weight of a fine particle filler having an average particle diameter of 1 to 20 μm, preferably 1 to 15 μm, particularly preferably 1 to 10 μm, based on 100 parts by weight of the pressure-sensitive adhesive composition. 60 to 130 parts by weight are added. When a fine particle filler having an average particle diameter of less than 1 μm is used, blocking becomes easy, and when a fine particle filler exceeding 20 μm is used, problems such as easy removal from the coating layer and halftone dots. There are problems such as poor printability such as reproducibility. When the amount of the 1-20 μm fine particle filler used is less than 50 parts by weight with respect to 100 parts by weight of the pressure-sensitive adhesive composition, the pressure-sensitive adhesive layer is bonded to a sheet having no pressure-sensitive adhesive layer. It becomes difficult to peel without destroying the sheet surface that does not have, and when it exceeds 150 parts by weight, the peel strength from the sheet not having the pressure-sensitive adhesive layer is greatly reduced.
本発明のワックス類は常温では固体であるが、２００℃以下の比較的低融点の脂肪的感触の無色または淡色の材料であって、具体例としてはカルナウバワックス、ライスワックス、ミツロウ、セラッカロウ、などの動植物性ワックス類、パラフィンワックス、微晶ロウ、ペトロラタム、モンタンワックスなどの石油性ワックス類、低分子量ポリエチレンワックスのごとき合成ワックス類、ステアリン酸もしくはその誘導体のごとき高級脂肪酸誘導体やその金属塩、アマイド、エステル類、高級アルコ−ル類、高級ケトン類、高級アミン類、シリコーン樹脂類等の公知のものの中から一種または二種以上を適宜選択して使用することができる。 The waxes of the present invention are solid at room temperature but are a colorless or light-colored material having a relatively low melting point and a fatty feel of 200 ° C. or lower. Specific examples include carnauba wax, rice wax, beeswax, cerca wax, Animal and vegetable waxes such as paraffin wax, microcrystalline wax, petrolatum, and montan wax, synthetic waxes such as low molecular weight polyethylene wax, higher fatty acid derivatives such as stearic acid or its derivatives, and metal salts thereof, One or more kinds of known substances such as amides, esters, higher alcohols, higher ketones, higher amines, and silicone resins can be appropriately selected and used.
更に、本発明において感圧接着剤組成物１００重量部に対して該ワックス類を１〜３０重量部、好ましくは３〜２５重量部添加する。ワックス類の使用量が感圧接着剤組成物１００重量部に対して１重量部未満では、耐ブロッキング性を付与することが困難になり、３０重量部を超える場合には、感圧接着層を有しないシートとの接着強度が大きく低下する上にインキセットなどの印刷適性も悪化する。また平均粒子径が１０μｍを超えるワックスを使用した場合には剥離強度が大きく低下する等の問題や網点再現性等の印字適性が悪くなる等の問題があるので、平均粒子径１０μ以下のワックス類であることが好まし。平均粒子径０．１〜６μｍのワックス類が更に好ましい。 Further, in the present invention, 1 to 30 parts by weight, preferably 3 to 25 parts by weight of the wax is added to 100 parts by weight of the pressure-sensitive adhesive composition. If the amount of the wax used is less than 1 part by weight relative to 100 parts by weight of the pressure-sensitive adhesive composition, it becomes difficult to impart blocking resistance, and if it exceeds 30 parts by weight, a pressure-sensitive adhesive layer is formed. Adhesive strength with a sheet that does not have is greatly reduced, and printability such as an ink set is also deteriorated. In addition, when a wax having an average particle diameter of more than 10 μm is used, there are problems such as a significant decrease in peel strength and poor printability such as halftone dot reproducibility. It is preferable to be similar. More preferred are waxes having an average particle size of 0.1 to 6 μm.
本発明における感圧接着剤組成物としては、天然ゴムに例えばスチレン、スチレン−ブタジエン共重合体、アクリロニトリル−ブタジエン共重合体、アルキル（メタ）アクリレートなどをグラフト重合したもの、また、イソプレンゴム、ブタジエンゴム、スチレン−ブタジエン共重合体ゴム、アクリロニトリル−ブタジエン共重合体ゴム、エチレン−プロピレン共重合体ゴム、ブチルゴム、クロロプレンゴム、アクリルゴム等の公知のものの中から一種または二種以上を適宜選択して使用することができる。 Examples of the pressure sensitive adhesive composition in the present invention include natural rubber obtained by graft polymerization of styrene, styrene-butadiene copolymer, acrylonitrile-butadiene copolymer, alkyl (meth) acrylate, etc., isoprene rubber, butadiene 1 type or 2 types or more are appropriately selected from known materials such as rubber, styrene-butadiene copolymer rubber, acrylonitrile-butadiene copolymer rubber, ethylene-propylene copolymer rubber, butyl rubber, chloroprene rubber and acrylic rubber. Can be used.
本発明に使用される再剥離性圧着記録用紙の基材シートは、紙、布、不織布、紙の上に樹脂フィルムをラミネートしたシート、フィルムシート等の公知のものの中から適宜選択して使用することができる。 The substrate sheet of the releasable pressure-sensitive recording paper used in the present invention is appropriately selected from known materials such as paper, cloth, nonwoven fabric, a sheet obtained by laminating a resin film on paper, and a film sheet. be able to.
また、感圧接着剤組成物中には、必要に応じて、分散剤、消泡剤、界面活性剤、老化防止剤、紫外線吸収剤、防黴剤、消臭剤、耐水化剤、蛍光増白剤等の添加剤を添加することができる。 In addition, in the pressure-sensitive adhesive composition, a dispersant, an antifoaming agent, a surfactant, an anti-aging agent, an ultraviolet absorber, an antifungal agent, a deodorant, a water-proofing agent, a fluorescent enhancement agent, and the like, as necessary. Additives such as whitening agents can be added.
上記感圧接着剤組成物は、エアーナイフコーター、ロールコーター、ブレードコーター、ロッドブレードコーター、バーコーター、ダイコーター等の一般的なコーターによって塗工されるが、塗工量は乾燥重量で３〜１５ｇ／ｍ２ の範囲で調整されるのが望ましい。塗工量を上記範囲に限定した理由は、３ｇ／ｍ２ 未満では印字品位や印刷上がりなどの視感的な面で劣り、更に剥離強度が低下し、好ましくないためである。また、塗工量が１５ｇ／ｍ２ を越えると、印字品位や印刷上がりなどの視感的な見栄えは向上するが、経済的な面から実用性が劣り、筆記性が乏しく、紙粉が発生しやすく、好ましくない。 The pressure-sensitive adhesive composition is applied by a general coater such as an air knife coater, roll coater, blade coater, rod blade coater, bar coater, die coater, etc., but the coating amount is 3 to 3 by dry weight. It is desirable to adjust in the range of 15 g / m 2 . The reason why the coating amount is limited to the above range is that if it is less than 3 g / m 2, it is not preferable because it is inferior in terms of visual quality such as print quality and printing finish, and further the peel strength is lowered. On the other hand, when the coating amount exceeds 15 g / m 2 , the visual appearance such as the print quality and the printed finish is improved, but the practicality is inferior from the economical viewpoint, the writing property is poor, and paper dust is generated. It is easy to do and is not preferable.
実施例：
本発明を以下の実施例、比較例により説明するが、本発明はこれらの例に限定される物ではない。なお、平均粒子径は全てカタログ値を用いた。実施例、比較例中の重量部数はすべて固形分換算での数値で示すものとする。
Example:
The present invention will be described with reference to the following examples and comparative examples, but the present invention is not limited to these examples. Note that catalog values were used for all average particle sizes. All parts by weight in Examples and Comparative Examples are shown as numerical values in terms of solid content.
天然ゴム系エマルジョン１００重量部、平均粒子径３μｍの非晶質シリカ（水澤化学工業株式会社製、ミズカシルＰ−７８Ａ）７０重量部、平均粒子径０．５μｍのワックスエマルジョン２０重量部（中京油脂株式会社製、セロゾール６８６）を配合して本発明の目的とする感圧接着剤組成物を得た。次にこの感圧接着剤組成物を坪量１２７．９ｇ／ｍ２の上質紙に塗工量が８ｇ／ｍ２（乾燥重量）になるように塗工して再剥離性圧着記録用紙
を得た。得られた再剥離性圧着記録用紙について剥離強度試験、印刷適性試験、ＮＩＰ適性試験、ＩＪ適性試験、ブロッキング性試験で評価した。
100 parts by weight of a natural rubber emulsion, 70 parts by weight of amorphous silica having an average particle size of 3 μm (Mizukasil P-78A, manufactured by Mizusawa Chemical Co., Ltd.), 20 parts by weight of a wax emulsion having an average particle size of 0.5 μm (Chukyo Yushi Co., Ltd.) A pressure sensitive adhesive composition intended by the present invention was obtained by blending Cellozol 686). Then give the removability crimping recording sheet by coating such that coating amount of this pressure-sensitive adhesive composition on a high-quality paper having a basis weight of 127.9 g / m 2 becomes 8 g / m 2 (dry weight) It was. The obtained releasable pressure-sensitive recording paper was evaluated by a peel strength test, a printability test, an NIP suitability test, an IJ suitability test, and a blocking property test.
実施例１の感圧接着剤組成物で非晶質シリカの配合部数を１２０重量部に変更した以外は、実施例１と同様にして再剥離性圧着記録用紙を作成し、これを実施例２とした。 A releasable pressure-sensitive recording sheet was prepared in the same manner as in Example 1 except that the amount of amorphous silica blended in the pressure-sensitive adhesive composition of Example 1 was changed to 120 parts by weight. It was.
実施例１の感圧接着剤組成物でワックスエマルジョンの配合部数を５重量部に変更した以外は、実施例１と同様にして再剥離性圧着記録用紙を作成し、これを実施例３とした。 A releasable pressure-sensitive recording sheet was prepared in the same manner as in Example 1 except that the number of parts of the wax emulsion in the pressure-sensitive adhesive composition of Example 1 was changed to 5 parts by weight. .
実施例１の感圧接着剤組成物でワックスエマルジョンをセロゾール６８６（中京油脂株式会社製、平均粒子径０．５μｍ）からセロゾールＢ−４９５（中京油脂株式会社製、平均粒子径５．５μｍ）に変更した以外は、実施例１と同様にして再剥離性圧着記録用紙を作成し、これを実施例４とした。 In the pressure-sensitive adhesive composition of Example 1, the wax emulsion was changed from Cellosol 686 (manufactured by Chukyo Yushi Co., Ltd., average particle size 0.5 μm) to Cellosol B-495 (manufactured by Chukyo Yushi Co., Ltd., average particle size 5.5 μm). Except for the change, a releasable pressure-sensitive recording sheet was prepared in the same manner as in Example 1, and this was designated as Example 4.
実施例１の感圧接着剤組成物でワックスエマルジョンの配合部数を５０重量部に変更した以外は、実施例１と同様にして再剥離性圧着記録用紙を作成し、これを比較例１とした。 A re-peelable pressure-sensitive recording sheet was prepared in the same manner as in Example 1 except that the blending number of the wax emulsion was changed to 50 parts by weight in the pressure-sensitive adhesive composition of Example 1, and this was used as Comparative Example 1. .
実施例１の感圧接着剤組成物で非晶質シリカの配合部数を４０重量部に変更した以外は、実施例１と同様にして再剥離性圧着記録用紙を作成し、これを比較例２とした。 A releasable pressure-sensitive recording sheet was prepared in the same manner as in Example 1 except that the amount of amorphous silica blended in the pressure-sensitive adhesive composition of Example 1 was changed to 40 parts by weight. It was.
実施例１の感圧接着剤組成物で非晶質シリカの配合部数を２００重量部に変更した以外は、実施例１と同様にして再剥離性圧着記録用紙を作成し、これを比較例３とした。 A releasable pressure-sensitive recording sheet was prepared in the same manner as in Example 1 except that the number of blended parts of amorphous silica was changed to 200 parts by weight in the pressure-sensitive adhesive composition of Example 1, and this was used as Comparative Example 3. It was.
実施例１の感圧接着剤組成物で平均粒子径３μｍの非晶質シリカを平均粒子径２２μｍの非晶質シリカ（日本シリカ工業株式会社製、ニップジェルＢＹ−００１）に変更した以外は、実施例１と同様にして再剥離性圧着記録用紙を作成し、これを比較例４とした。 Except that the pressure-sensitive adhesive composition of Example 1 was changed from amorphous silica having an average particle diameter of 3 μm to amorphous silica having an average particle diameter of 22 μm (nip gel BY-001, manufactured by Nippon Silica Kogyo Co., Ltd.). A re-peelable pressure-sensitive recording sheet was prepared in the same manner as in Example 1, and this was designated as Comparative Example 4.
実施例１の感圧接着剤組成物でワックスエマルジョンを平均粒子径１５μｍの小麦澱粉に変更した以外は、実施例１と同様にして再剥離性圧着記録用紙を作成し、これを比較例５とした。 A releasable pressure-sensitive recording sheet was prepared in the same manner as in Example 1 except that the wax emulsion was changed to wheat starch having an average particle size of 15 μm in the pressure-sensitive adhesive composition of Example 1, and this was compared with Comparative Example 5. did.
実施例１の感圧接着剤組成物でワックスエマルジョンを熱可塑性エチレン−アクリル共重合体粒子（製鉄化学工業社製フロービーズ、ＥＡ−２０９、平均粒子径２０μｍ）に変更した以外は、実施例１と同様にして再剥離性圧着記録用紙を作成し、これを比較例６とした。 Example 1 except that the wax emulsion was changed to thermoplastic ethylene-acrylic copolymer particles (Flow Beads, EA-209, average particle size 20 μm, manufactured by Iron Chemical Co., Ltd.) in the pressure-sensitive adhesive composition of Example 1. In the same manner as above, a releasable pressure-sensitive recording sheet was prepared, and this was designated as Comparative Example 6.
以上の実施例、比較例で得られた再剥離性圧着記録用紙を下記試験方法に従って諸特性の評価を行なった。 Various characteristics of the releasable pressure-sensitive recording paper obtained in the above Examples and Comparative Examples were evaluated according to the following test methods.
剥離強度試験：得られた再剥離性圧着記録用紙を幅１００ｍｍ、長さ１００ｍｍに裁断し、塗工面同士を重ね合わせてドライシーラー（プレッスルエコノ：トッパン・フォームズ株式会社製）を用いて加圧接着した。次にこの試料の幅方向中央部を２５ｍｍ幅に断裁して、２３℃、５０％Ｒ．Ｈ．環境下でストログラフＭ−１型（東洋精機製作所製）で速度３００ｍ／分、剥離角９０°（Ｔ型剥離）で剥離してその抵抗値を平均化して剥離強度ｇｆ／２５ｍｍを求める。○（実用できる）：５０〜１５０ｇ／２５ｍｍ、△（実用に際し、若干支障がある）：２０〜５０ ｇ／２５ｍｍ、×（実用不可）：０〜２０ ｇ／２５ｍｍ。 Peel strength test: The obtained releasable pressure-sensitive recording paper is cut into a width of 100 mm and a length of 100 mm, and the coated surfaces are overlapped with each other and pressed using a dry sealer (Pressle Econo: manufactured by Toppan Forms Co., Ltd.). Glued. Next, the width direction center part of this sample was cut | judged to 25 mm width, and 23 degreeC and 50% R. H. Peeling strength gf / 25mm is obtained by peeling with a strograph M-1 type (manufactured by Toyo Seiki Seisakusho Co., Ltd.) at a speed of 300 m / min and a peeling angle of 90 ° (T-type peeling) and averaging the resistance values. ○ (Practical): 50 to 150 g / 25 mm, Δ (Slightly hindering practical use): 20 to 50 g / 25 mm, × (Not practical): 0 to 20 g / 25 mm.
印刷適性試験：ＲＩ−３型印刷適性試験機（明製作所製）を使用してインキ濃度、耐刷力等を目視により観察し評価を行った。インキによる塗工層剥け、紙剥けなどが全くないものから順に○、△、×とした。 Printing suitability test: Using an RI-3 type printing suitability tester (manufactured by Meisei Seisakusho), the ink density, printing durability and the like were visually observed and evaluated. O, Δ, and X were given in order from the one having no coating layer peeling or paper peeling by ink.
ノンインパクトプリンティング（ＮＩＰ）印字適性試験：レーザービームプリンター（Ｃａｎｏｎ社製、ＬＡＳＥＲ ＳＨＯＴ ＬＢＰ−９５０）を用いてテスト印字パターン（文字、線、ベタ）を印字し、視感で評価した。鮮明な画像、印字が得られたものから順に○、△、×とした。 Non-impact printing (NIP) printability test: A test print pattern (characters, lines, solid) was printed using a laser beam printer (Canon, LASER SHOT LBP-950) and evaluated by visual sensation. In order from the ones where clear images and prints were obtained, the marks were.
インクジェット（ＩＪ）印字適性試験：インクジェットプリンター（ヒューレットパッカード社製 ＨＰ ＤｅｓｋＪｅｔ５６０Ｊ）のインクカートリッジにサイテックス１０４０黒インクを注入し、テスト印字パターン（文字、線、ベタ）を印字し、視感で評価した。鮮明な画像、印字が得られたものから順に○、△、×とした。 Inkjet (IJ) printability test: Cytex 1040 black ink was injected into an ink cartridge of an inkjet printer (HP DeskJet 560J, manufactured by Hewlett Packard), and a test print pattern (characters, lines, solid) was printed and evaluated by visual feeling. . In order from the ones where clear images and prints were obtained, the marks were.
ブロッキング性試験：試料を幅５０ｍｍ，長さ５０ｍｍの試験片にし、２０枚重ね、２３℃、５０％ＲＨ環境下で荷重をかけて放置し、２４時間後に手で剥がし、視感で評価した：
○○：ブロッキングが発生していない
○△：少しブロッキングが発生している
○×：完全にブロッキングしている。
Blocking property test: Samples were made into test pieces having a width of 50 mm and a length of 50 mm, 20 sheets were stacked, left under load in an environment of 23 ° C. and 50% RH, peeled off by hand after 24 hours, and evaluated by visual sensation:
◯: No blocking has occurred. △: Slightly blocking has occurred. ○ ×: Completely blocking.
実施例１〜２及び比較例１〜４で作成した再剥離性圧着記録用紙の、各試験結果を下記表１に示す。
Claims (2)
The releasable pressure-sensitive recording paper according to claim 1, wherein the thermoplastic resin is a wax having an average particle diameter of 10 µm or less.
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN115450066A (en) * | 2022-10-28 | 2022-12-09 | 江苏万宝瑞达高新技术有限公司 | Ink-jet synthetic paper and manufacturing method thereof |
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| JPH06247077A (en) * | 1993-02-25 | 1994-09-06 | New Oji Paper Co Ltd | Re-peelable pressure-sensitive adhesive postcard |
| JPH0892534A (en) * | 1994-09-26 | 1996-04-09 | Mitsubishi Paper Mills Ltd | Removable pressure-sensitive confidential sheet |
| JPH10250263A (en) * | 1997-03-10 | 1998-09-22 | Mitsubishi Paper Mills Ltd | Contact bonding recording paper and recording method |
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| JPH11198568A (en) * | 1998-01-09 | 1999-07-27 | Oji Paper Co Ltd | Paper for confidential postcard |
| JP2000085271A (en) * | 1998-09-11 | 2000-03-28 | Dainippon Printing Co Ltd | Sealed information medium having re-peelability, and pressure-sensitive adhesive composition |
| JP2002356659A (en) * | 2001-03-30 | 2002-12-13 | Nippon Paper Industries Co Ltd | Pseudo-adhesive sheet and recording substance using the same |
| JP2003119443A (en) * | 2001-10-11 | 2003-04-23 | Saiden Chemical Industry Co Ltd | Cold seal adhesive composition for subsequent pasting use |
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| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH06247077A (en) * | 1993-02-25 | 1994-09-06 | New Oji Paper Co Ltd | Re-peelable pressure-sensitive adhesive postcard |
| JPH0892534A (en) * | 1994-09-26 | 1996-04-09 | Mitsubishi Paper Mills Ltd | Removable pressure-sensitive confidential sheet |
| JPH10250263A (en) * | 1997-03-10 | 1998-09-22 | Mitsubishi Paper Mills Ltd | Contact bonding recording paper and recording method |
| JPH1134208A (en) * | 1997-07-14 | 1999-02-09 | Mitsubishi Paper Mills Ltd | Pressure bonding recording paper |
| JPH11198568A (en) * | 1998-01-09 | 1999-07-27 | Oji Paper Co Ltd | Paper for confidential postcard |
| JP2000085271A (en) * | 1998-09-11 | 2000-03-28 | Dainippon Printing Co Ltd | Sealed information medium having re-peelability, and pressure-sensitive adhesive composition |
| JP2002356659A (en) * | 2001-03-30 | 2002-12-13 | Nippon Paper Industries Co Ltd | Pseudo-adhesive sheet and recording substance using the same |
| JP2003119443A (en) * | 2001-10-11 | 2003-04-23 | Saiden Chemical Industry Co Ltd | Cold seal adhesive composition for subsequent pasting use |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
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| CN115450066A (en) * | 2022-10-28 | 2022-12-09 | 江苏万宝瑞达高新技术有限公司 | Ink-jet synthetic paper and manufacturing method thereof |
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| JP4815099B2 (en) | 2011-11-16 |
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