JP6696403B2 - 感熱記録体 - Google Patents
感熱記録体 Download PDFInfo
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- JP6696403B2 JP6696403B2 JP2016209136A JP2016209136A JP6696403B2 JP 6696403 B2 JP6696403 B2 JP 6696403B2 JP 2016209136 A JP2016209136 A JP 2016209136A JP 2016209136 A JP2016209136 A JP 2016209136A JP 6696403 B2 JP6696403 B2 JP 6696403B2
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- polyvinyl alcohol
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- MJGLMEMIYDUEHA-UHFFFAOYSA-N n-(4-methylphenyl)-3-oxobutanamide Chemical compound CC(=O)CC(=O)NC1=CC=C(C)C=C1 MJGLMEMIYDUEHA-UHFFFAOYSA-N 0.000 description 1
- YVOQADGLLJCMOE-UHFFFAOYSA-N n-[6-(aziridine-1-carbonylamino)hexyl]aziridine-1-carboxamide Chemical compound C1CN1C(=O)NCCCCCCNC(=O)N1CC1 YVOQADGLLJCMOE-UHFFFAOYSA-N 0.000 description 1
- 125000000740 n-pentyl group Chemical group [H]C([H])([H])C([H])([H])C([H])([H])C([H])([H])C([H])([H])* 0.000 description 1
- 150000002825 nitriles Chemical class 0.000 description 1
- 239000003921 oil Substances 0.000 description 1
- 235000014593 oils and fats Nutrition 0.000 description 1
- JRZJOMJEPLMPRA-UHFFFAOYSA-N olefin Natural products CCCCCCCC=C JRZJOMJEPLMPRA-UHFFFAOYSA-N 0.000 description 1
- 239000003973 paint Substances 0.000 description 1
- FJKROLUGYXJWQN-UHFFFAOYSA-N papa-hydroxy-benzoic acid Natural products OC(=O)C1=CC=C(O)C=C1 FJKROLUGYXJWQN-UHFFFAOYSA-N 0.000 description 1
- PNJWIWWMYCMZRO-UHFFFAOYSA-N pent‐4‐en‐2‐one Natural products CC(=O)CC=C PNJWIWWMYCMZRO-UHFFFAOYSA-N 0.000 description 1
- 150000002989 phenols Chemical class 0.000 description 1
- 125000000951 phenoxy group Chemical group [H]C1=C([H])C([H])=C(O*)C([H])=C1[H] 0.000 description 1
- NBIIXXVUZAFLBC-UHFFFAOYSA-K phosphate Chemical compound [O-]P([O-])([O-])=O NBIIXXVUZAFLBC-UHFFFAOYSA-K 0.000 description 1
- 150000003013 phosphoric acid derivatives Chemical class 0.000 description 1
- 229920001225 polyester resin Polymers 0.000 description 1
- 239000004645 polyester resin Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 230000008569 process Effects 0.000 description 1
- GJRKKTVFRGJAFQ-UHFFFAOYSA-N prop-2-en-1-ol;urea Chemical compound NC(N)=O.OCC=C GJRKKTVFRGJAFQ-UHFFFAOYSA-N 0.000 description 1
- UIIIBRHUICCMAI-UHFFFAOYSA-N prop-2-ene-1-sulfonic acid Chemical compound OS(=O)(=O)CC=C UIIIBRHUICCMAI-UHFFFAOYSA-N 0.000 description 1
- 125000002572 propoxy group Chemical group [*]OC([H])([H])C(C([H])([H])[H])([H])[H] 0.000 description 1
- 230000001681 protective effect Effects 0.000 description 1
- HNJBEVLQSNELDL-UHFFFAOYSA-N pyrrolidin-2-one Chemical compound O=C1CCCN1 HNJBEVLQSNELDL-UHFFFAOYSA-N 0.000 description 1
- 230000009467 reduction Effects 0.000 description 1
- 229960004889 salicylic acid Drugs 0.000 description 1
- 229920006395 saturated elastomer Polymers 0.000 description 1
- 230000008313 sensitization Effects 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
- 235000012239 silicon dioxide Nutrition 0.000 description 1
- 239000011734 sodium Substances 0.000 description 1
- 229910052708 sodium Inorganic materials 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 229940037312 stearamide Drugs 0.000 description 1
- 238000003756 stirring Methods 0.000 description 1
- 150000003457 sulfones Chemical class 0.000 description 1
- 229920002803 thermoplastic polyurethane Polymers 0.000 description 1
- 229910052718 tin Inorganic materials 0.000 description 1
- 239000010936 titanium Substances 0.000 description 1
- 229910052719 titanium Inorganic materials 0.000 description 1
- OGIDPMRJRNCKJF-UHFFFAOYSA-N titanium oxide Inorganic materials [Ti]=O OGIDPMRJRNCKJF-UHFFFAOYSA-N 0.000 description 1
- 125000002088 tosyl group Chemical group [H]C1=C([H])C(=C([H])C([H])=C1C([H])([H])[H])S(*)(=O)=O 0.000 description 1
- LDHQCZJRKDOVOX-UHFFFAOYSA-N trans-crotonic acid Natural products CC=CC(O)=O LDHQCZJRKDOVOX-UHFFFAOYSA-N 0.000 description 1
- SRPWOOOHEPICQU-UHFFFAOYSA-N trimellitic anhydride Chemical compound OC(=O)C1=CC=C2C(=O)OC(=O)C2=C1 SRPWOOOHEPICQU-UHFFFAOYSA-N 0.000 description 1
- 229910052720 vanadium Inorganic materials 0.000 description 1
- 238000007740 vapor deposition Methods 0.000 description 1
- 229920001567 vinyl ester resin Polymers 0.000 description 1
- KAKZBPTYRLMSJV-UHFFFAOYSA-N vinyl-ethylene Natural products C=CC=C KAKZBPTYRLMSJV-UHFFFAOYSA-N 0.000 description 1
- NLVXSWCKKBEXTG-UHFFFAOYSA-N vinylsulfonic acid Chemical compound OS(=O)(=O)C=C NLVXSWCKKBEXTG-UHFFFAOYSA-N 0.000 description 1
- 239000000080 wetting agent Substances 0.000 description 1
- 239000010457 zeolite Substances 0.000 description 1
- 239000011667 zinc carbonate Substances 0.000 description 1
- 229910000010 zinc carbonate Inorganic materials 0.000 description 1
- 235000004416 zinc carbonate Nutrition 0.000 description 1
- 229910052984 zinc sulfide Inorganic materials 0.000 description 1
- DRDVZXDWVBGGMH-UHFFFAOYSA-N zinc;sulfide Chemical compound [S-2].[Zn+2] DRDVZXDWVBGGMH-UHFFFAOYSA-N 0.000 description 1
- 229910052726 zirconium Inorganic materials 0.000 description 1
Landscapes
- Heat Sensitive Colour Forming Recording (AREA)
Description
項2:前記非晶質シリカの比表面積が200〜800m2/gである、項1に記載の感熱記録体。
項3:前記ポリビニルアルコール及びその誘導体からなる群から選ばれる少なくとも1種がアセトアセチル変性ポリビニルアルコールである、項1または2に記載の感熱記録体。
項4:前記支持体の他方の面に磁気記録層を有する、項1〜3のいずれか1項に記載の感熱記録体。
顕色剤の使用量は、使用するロイコ染料により異なるため限定できないが、感熱記録層の全固形量中10〜70質量%程度が好ましく、12〜50質量%程度がより好ましい。
実施例4及び5は参考例である。
・下塗り層用塗液の調製
焼成カオリン(商品名:アンシレックス93、BASF社製)40部を水60部に分散して得られた分散物に、プラスチック微小中空粒子(商品名:ローペイクSN−1055、ローム&ハース社製、固形分濃度26.5%)87部、スチレン−ブタジエン系ラテックス(商品名:L−1571、旭化成ケミカルズ社製、固形分濃度48%)52部と、カルボキシメチルセルロース(商品名:セロゲン7A、第一工業製薬社製)2.5部、同じくカルボキシメチルセルロース(商品名:セロゲンAGガム、第一工業製薬社製)1部、及び水15.5部を混合攪拌して、下塗り層用塗液を得た。
3−ジ−(n−ブチル)アミノ−6−メチル−7−アニリノフルオラン40部、ポリビニルアルコール(重合度500、鹸化度88%)の10%水溶液40部、及び水20部を混合し、サンドミルを用いて、レーザ回折式粒度分布測定装置SALD−2200(島津製作所社製)による平均粒子径が0.7μmとなるように粉砕し、分散してロイコ染料分散液(以下、A液という)を得た。
N−p−トルエンスルホニル−N’−3−(p−トルエンスルホニルオキシ)フェニルウレア40部、部分鹸化ポリビニルアルコール(重合度500、鹸化度88%)の10%水溶液40部、及び水20部を混合し、サンドミルでレーザ回折式粒度分布測定装置SALD−2200(島津製作所社製)による平均粒子径が1.5μmとなるように粉砕し、分散して顕色剤分散液(以下、B液という)を得た。
シュウ酸ジ−p−メチルベンジルエステル40部、部分鹸化ポリビニルアルコール(重合度500、鹸化度88%)の10%水溶液40部、及び水20部を混合し、サンドミルでレーザ回折式粒度分布測定装置SALD−2200(島津製作所社製)による平均粒子径が1.0μmとなるように粉砕し、分散して増感剤分散液(以下、C液という)を得た。
前記一般式(1)で表されるジフェニルスルホン架橋型化合物40部、部分鹸化ポリビニルアルコール(重合度500、鹸化度88%)の10%水溶液40部、及び水20部を混合し、サンドミルでレーザ回折式粒度分布測定装置SALD−2200(島津製作所社製)による平均粒子径が1.0μmになるように粉砕し、分散して保存性改良剤分散液(以下、D液という)を得た。
A液80部、B液80部、C液5部、D液36部、ブタジエン系共重合体ラテックス(商品名:L−1571、旭化成社製、固形分濃度48%)15部、及び水100部を混合撹拌して感熱記録層用塗液を得た。
カオリン(商品名:HYDRAGLOSS90、KaMin LLC社製)59.5部、分散剤(商品名:アロンT−50、東亜合成社製、固形分濃度40%)0.5部、水40部からなる組成物を、ホモミキサーで1時間分散し、保護層用顔料分散物を得た。
ジアセトン変性ポリビニルアルコール(商品名:PVD−700、鹸化度:98.5モル%、平均重合度:1700、日本酢ビ・ポバール社製)の10%水溶液300部、上記保護層用顔料分散物を100部、ステアリン酸亜鉛の水分散物(商品名:ハイドリンZ−8−36、中京油脂社製、固形分濃度36%)19部、アジピン酸ジヒドラジド(大塚化学社製)3部、及び水250部からなる組成物を混合撹拌し、保護層用塗液を得た。
アクリルアミド−ジアリルアミン塩酸塩共重合体(商品名:ユニセンスKCA100L、センカ化学社製、固形分濃度23%)87部、アセトアセチル変性ポリビニルアルコール(商品名:ゴーセファイマーZ−200、鹸化度:99.4モル%、平均重合度:1000、変性度:5モル%、日本合成化学工業社製)の10%水溶液260部、比表面積500m2/gの非晶質シリカ(商品名:サイリシア530、富士シリシア化学社製)を50部、ステアリン酸亜鉛の水分散物(商品名:ハイドリンZ−8−36、中京油脂社製、固形分濃度36%)10部からなる組成物を混合撹拌し、スタンプインク吸収層用塗液を得た。
坪量157g/m2の上質紙の一方の面に、下塗り層用塗液、感熱記録層用塗液、保護層用塗液、及びスタンプインク吸収層用塗液を乾燥後の塗布量がそれぞれ7.0g/m2、5.5g/m2、2.0g/m2、及び2.0g/m2となるようにバーコーターで塗布及び乾燥して、下塗り層、感熱記録層、保護層、及びスタンプインク吸収層を順次形成した後、スーパーカレンダーで表面を平滑化して感熱記録体を得た。
実施例1のスタンプインク吸収層用塗液の調製において、アクリルアミド−ジアリルアミン塩酸塩共重合体の87部に代えて、アクリルアミド−ジアリルアミン酢酸塩共重合体(商品名:ユニセンスKCA101LU、センカ化学社製、固形分濃度39%)52部を用いた以外は、実施例1と同様にして感熱記録体を得た。
実施例1のスタンプインク吸収層用塗液の調製において、アクリルアミド−ジアリルアミン塩酸塩共重合体の87部に代えて、アクリルアミド−ジアリルアミン燐酸塩共重合体(商品名:ユニセンスKCA100LU、センカ化学社製、固形分濃度41%)49部を用いた以外は、実施例1と同様にして感熱記録体を得た。
実施例1のスタンプインク吸収層用塗液の調製において、比表面積500m2/gの非晶質シリカの50部に代えて、比表面積700m2/gの非晶質シリカ(商品名:サイリシア710、富士シリシア化学株式会社製)50部を用いた以外は、実施例1と同様にして感熱記録体を得た。
実施例1のスタンプインク吸収層用塗液の調製において、比表面積500m2/gの非晶質シリカの50部に代えて、比表面積300m2/gの非晶質シリカ(商品名:サイリシア320、富士シリシア化学社製)50部にした以外は、実施例1と同様にして感熱記録体を得た。
実施例1のスタンプインク吸収層用塗液の調製において、アセトアセチル変性ポリビニルアルコールの10%水溶液260部に代えて、カルボキシ変成ポリビニルアルコール(T−350:日本合成化学製)の10%水溶液260部を用いた以外は、実施例1と同様にして感熱記録体を得た。
実施例1で得られた感熱記録体を用いて、支持体の他方の面に下記の方法によって磁気記録層を形成し、磁気記録層表面のベック平滑度が約500秒となるようにスーパーカレンダーで平滑化して磁気記録層を有する感熱記録体を得た。
実施例1で得られた感熱記録体の支持体の他方の面に、アイオノマー樹脂の水系エマルジョン(商品名:ケミパールS、三井石油化学工業社製)をグラビアコーターによって乾燥後の塗布量が0.5g/m2となるように塗布及び乾燥してアイオノマー樹脂層を設けた後、該アイオノマー樹脂層の表面にコロナ放電処理を施した。
磁性粉末粒子[BaO−6Fe2O3(保磁力2750Oe)]70部、ポリカルボン酸ソーダ(商品名:アロンT−50、東亜合成社製、固形分濃度40%)2部、カゼイン12%水溶液78部、水60部からなる組成物をペイントシェカーで分散して磁気記録層用磁性粉末分散物を得た。
上記の磁気記録層用磁性粉末分散物210部、スチレン−ブタジエン樹脂の水系エマルジョン(商品名:SB−301、DIC社製、固形分濃度25%)20部からなる組成物を混合攪拌し、磁気記録層用塗液を得た。
上記のアイオノマー樹脂層上に磁気記録層用塗液をバーコーターによって乾燥後の塗布量が30g/m2となるように塗布し、3500ガウスの永久磁石によって塗布面の磁性粉末粒子を磁場配向させた後、これを乾燥して磁気記録層を形成した。
実施例1のスタンプインク吸収層用塗液の調製において、アクリルアミド−ジアリルアミン塩酸塩共重合体の87部を使用しなかった以外は、実施例1と同様にして感熱記録体を得た。
実施例1のスタンプインク吸収層用塗液の調製において、アクリルアミド−ジアリルアミン塩酸塩共重合体の87部に代えて、ポリウレタン系カチオン樹脂(商品名:MZ−477、高松油脂製、固形分濃度23%)87部を用いた以外は、実施例1と同様にして感熱記録体を得た。
実施例1のスタンプインク吸収層用塗液の調製において、アクリルアミド−ジアリルアミン塩酸塩共重合体の87部に代えて、ジメチルジアリルアンモニウムクロライド共重合体(商品名:ユニセンスFPA100L、センカ化学社製、固形分濃度27%)75部を用いた以外は、実施例1と同様にして感熱記録体を得た。
券売機シミュレーター(オムロン社製)にて、1.0mJ/ドットの印加エネルギーで感熱記録を行い、得られた記録部の光学濃度を反射型濃度計(マクベスRD−914、マクベス社製)で測定し、下記基準で評価した。
○:光学濃度が1.30より大きい。
△:光学濃度が1.00以上、1.30以下である。
×:光学濃度が1.00未満である。
感熱記録体のスタンプインク吸収層側の表面に、捺印スタンプインク(商品名:速乾性捺印スタンパー、シャチハタ社製)による捺印を施し、その直後に指先で捺印部を摩擦し、捺印部を目視によって下記の基準で評価した。捺印が鮮明に残っているほど、インクの吸収性と定着性に優れている。
◎:捺印が鮮明に残っている。
○:捺印に流れが発生したが、文字は鮮明に見える。
△:捺印に流れが発生し、文字が薄れて不鮮明である。
×:捺印が消えている。
感熱記録体のスタンプインク吸収層側の表面に、捺印スタンプインク(商品名:速乾性捺印スタンパー、シャチハタ社製)による捺印を施した後、十分に乾燥してから、100%エタノールを含浸させた綿棒で捺印部を摩擦し、捺印部を目視によって下記の基準で評価した。捺印が完全に残っているほど、耐改竄性に優れている。
◎:捺印が完全に残っている。
○:捺印が若干薄くなるが、残っている。
×:捺印が完全に消えている。
Claims (4)
- 支持体と、前記支持体の一方の面に感熱記録層と、前記感熱記録層上に保護層と、前記保護層上にスタンプインク吸収層とを有する感熱記録体であって、前記スタンプインク吸収層がアクリルアミド−ジアリルアミン塩共重合体、非晶質シリカ、並びにポリビニルアルコール及びその誘導体からなる群から選ばれる少なくとも1種を含有し、前記非晶質シリカの比表面積が400〜600m 2 /gであることを特徴とする感熱記録体。
- 前記保護層がカオリンを含有する、請求項1に記載の感熱記録体。
- 前記ポリビニルアルコール及びその誘導体からなる群から選ばれる少なくとも1種がアセトアセチル変性ポリビニルアルコールである、請求項1または2に記載の感熱記録体。
- 前記支持体の他方の面に磁気記録層を有する、請求項1〜3のいずれか1項に記載の感熱記録体。
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