JP2005067009A - インキフォロワー流体 - Google Patents
インキフォロワー流体 Download PDFInfo
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- JP2005067009A JP2005067009A JP2003299487A JP2003299487A JP2005067009A JP 2005067009 A JP2005067009 A JP 2005067009A JP 2003299487 A JP2003299487 A JP 2003299487A JP 2003299487 A JP2003299487 A JP 2003299487A JP 2005067009 A JP2005067009 A JP 2005067009A
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- 108010062847 neurofilament protein NF 68 Proteins 0.000 description 1
- 239000002736 nonionic surfactant Substances 0.000 description 1
- ZQPPMHVWECSIRJ-KTKRTIGZSA-N oleic acid Chemical class CCCCCCCC\C=C/CCCCCCCC(O)=O ZQPPMHVWECSIRJ-KTKRTIGZSA-N 0.000 description 1
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- 239000004584 polyacrylic acid Substances 0.000 description 1
- 229920006122 polyamide resin Polymers 0.000 description 1
- 229920002857 polybutadiene Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920000728 polyester Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000642 polymer Polymers 0.000 description 1
- 229920001282 polysaccharide Polymers 0.000 description 1
- 239000005017 polysaccharide Substances 0.000 description 1
- 150000004804 polysaccharides Chemical class 0.000 description 1
- 150000003097 polyterpenes Chemical class 0.000 description 1
- 229920002451 polyvinyl alcohol Polymers 0.000 description 1
- 235000013855 polyvinylpyrrolidone Nutrition 0.000 description 1
- 239000001267 polyvinylpyrrolidone Substances 0.000 description 1
- 229920000036 polyvinylpyrrolidone Polymers 0.000 description 1
- 235000010408 potassium alginate Nutrition 0.000 description 1
- 239000000737 potassium alginate Substances 0.000 description 1
- MZYRDLHIWXQJCQ-YZOKENDUSA-L potassium alginate Chemical compound [K+].[K+].O1[C@@H](C([O-])=O)[C@@H](OC)[C@H](O)[C@H](O)[C@@H]1O[C@@H]1[C@@H](C([O-])=O)O[C@@H](O)[C@@H](O)[C@H]1O MZYRDLHIWXQJCQ-YZOKENDUSA-L 0.000 description 1
- 239000003755 preservative agent Substances 0.000 description 1
- 230000002335 preservative effect Effects 0.000 description 1
- 239000010734 process oil Substances 0.000 description 1
- 235000010409 propane-1,2-diol alginate Nutrition 0.000 description 1
- 239000000770 propane-1,2-diol alginate Substances 0.000 description 1
- 235000013772 propylene glycol Nutrition 0.000 description 1
- 239000005871 repellent Substances 0.000 description 1
- 230000002940 repellent Effects 0.000 description 1
- 150000003330 sebacic acids Chemical class 0.000 description 1
- 239000004208 shellac Substances 0.000 description 1
- 229940113147 shellac Drugs 0.000 description 1
- ZLGIYFNHBLSMPS-ATJNOEHPSA-N shellac Chemical compound OCCCCCC(O)C(O)CCCCCCCC(O)=O.C1C23[C@H](C(O)=O)CCC2[C@](C)(CO)[C@@H]1C(C(O)=O)=C[C@@H]3O ZLGIYFNHBLSMPS-ATJNOEHPSA-N 0.000 description 1
- 235000013874 shellac Nutrition 0.000 description 1
- 229910000077 silane Inorganic materials 0.000 description 1
- 229910052710 silicon Inorganic materials 0.000 description 1
- 229920002545 silicone oil Polymers 0.000 description 1
- 229910021647 smectite Inorganic materials 0.000 description 1
- 239000000344 soap Substances 0.000 description 1
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Abstract
【構成】インキ収容部内に直接充填されたインキの上部に備えられたインキフォロワー流体であって、当該インキフォロワー流体が角周波数0.0001〜100.0rad/secにおける、貯蔵弾性率と損失弾性率の交点が角周波数0.5rad/sec以下であることを特徴とするインキフォロワー流体。
【選択図】 なし
Description
損失弾性率及び貯蔵弾性率は角振動数(または振動数)で振動し、ひずみを与える測定方法によって得られ、この挙動は物質固有のスペクトルとなる。この2つの数値は、損失弾性率がその試料の粘性要素を、貯蔵弾性率がその試料の弾性要素を表している。この2つの数値には関連性があり、それを表す損失正接をtanδと呼ぶ。tanδは〔損失弾性率/貯蔵弾性率〕を意味する値であり、この値が大きいこと(tanδ>1)は、流動性が高いこと(あるいは粘性応答)を示し、小さいこと(tanδ<1)は、固体状(あるいは弾性応答)に近いことを示す。
インキフォロアー流体などの流体は、低角周波数から高角周波数へ振動数を振ることで内部構造を推測でき、分子の絡み合いなどにより、低角周波数領域では弾性応答を、高角周波数領域では粘性応答を示す。インキフォロワー流体については、ゲル化剤がその基材を保持することによって、その機能を果たしている。ゲル化剤の分子の絡み合いにより基材を保持する構造上、その分子の絡み合いが重要な要因である。その絡み合いを周波数依存性により測定でき、低角周波数領域で貯蔵弾性率をより大きくすることによって、インキフォロワー流体における分子の絡み合いが強くなり、離油や分離を防ぐことができると考えられる。その為低角周波数領域での貯蔵弾性率を大きくし、損失弾性率と貯蔵弾性率がより低い角周波数で交わることが必要であると考えられる。また0.5rad/sec付近の角周波数は、インキ収容管内に通常想定される角周波数であり、この角周波数で貯蔵弾性率が損失弾性率よりも優っていることが必要であると考えられる。この角周波数よりも低い角周波数損失弾性率と貯蔵弾性率の交点が、角周波数0.5rad/secよりも大きいと、高温下や長期保存でインキフォロワー流体の一部がインキに移行してしまう分離や離油が生じてしまう。
ルーカントHC−100(基材、エチレン−α−オレフィンコポリマー、三井石油化学工業(株)製) 45.00重量部
レオパールKL(ゲル化増粘剤、デキストリン脂肪酸エステル、千葉製粉(株)製)
50重量部
アエロジルR972(ゲル化増粘剤、微粒子シリカ、日本アエロジル(株)製)
3.50重量部
上記成分を容器に入れ、温度を120℃に加熱しながら攪拌を2時間行い、インキフォロワー流体を得た。
レオパールKE(ゲル化増粘剤、デキストリン脂肪酸エステル、千葉製粉(株)製)
3.00重量部
アエロジルR972(ゲル化増粘剤、微粒子シリカ、日本アエロジル(株)製)
4.00重量部
CDIS−400(ポリエチレングリコールジイソステアレート、日光ケミカルズ社製)
2.00重量部
レオパールKEとアエロジルR972を乾式混合し、上記成分とともに容器に入れ、温度を140℃に加熱しながら攪拌を2時間行い、インキフォロワー流体を得た。
ルーカントHC−100(前述) 40.00重量部
ルーカントHC−40(基材、エチレン−α−オレフィンコポリマー、三井石油化学工業(株)製) 15.00重量部
アエロジルR972(前述) 2.50重量部
KF410(メチルスチリル変性シリコーンオイル、信越シリコン(株)製)
1.50重量部
レオパールKL(前述) 1.20重量部
上記成分を容器に入れ、温度を140℃に加熱しながら攪拌を2時間行い、インキフォロワー流体を得た。
モービルSHF1001(前述) 46.00重量部
アエロジルR972(前述) 4.00重量部
レオパールKL(前述) 3.00重量部
レオパールKLとアエロジルR972を乾式混合し、上記成分とともに容器に入れ、温度を140℃に加熱しながら攪拌を2時間行い、インキフォロワー流体を得た
ケルザンS(キサンタンガム、三晶(株)製) 4.00重量部
エマルゲン709(ポリオキシエチレン高級アルコールエーテル、花王(株)製)
2.00重量部
プロクセルGXL(1,2−ベンゾイソチアゾリン−3−オン、ICIジャパン(株)製) 0.20重量部
上記各成分をプロペラ型攪拌機で混合、溶解し、インキフォロワー流体を得た。
ルーカントHC−100(前述) 49.50重量部
GP−1(増粘剤、N−ラウロイル−L−グルタミン酸−α、γ−ジノルマルブチルブチルアミド、味の素(株)製) 1.00重量部
上記各成分をプロペラ型攪拌機で混合、溶解し、インキフォロワー流体を得た。
ポリブテンLV−50(前述) 89.00重量部
アエロジルR972(前述) 8.00重量部
レオパールKE(前述) 3.00重量部
上記成分を容器に入れ、温度を140度に加熱しながら、インキフォロワー流体を得た。
モービルSHF1001(前述) 32.50重量部
ルーカントHC−100(前述) 32.50重量部
ルーカントHC−40(前述) 30.00重量部
アエロジルR972(前述) 4.00重量部
KF410(前述) 1.00重量部
上記成分を容器に入れ、温度を120度に加熱しながら、インキフォロワー流体を得た。
ポリブテンHV−15(前述) 31.00重量部
エンパラK43(塩素化パラフィン、味の素(株)製) 61.00重量部
アエロジルR972(前述) 3.00重量部
レオパールKE(前述) 5.00重量部
上記成分を容器に入れ、温度を120度に加熱しながら、インキフォロワー流体を得た。
歪み測定測定機CVO50 Rheometer(Bohiln Istruments社製、英国)にジオメトリー(直径40mm、平行板と円錐の側面とがなす角4°の円錐と平行板の組み合わせ)をセットし、円錐と平行板の間にインキフォロワー流体を充填する。測定条件をSWEEP TYPE:FREQUENCY SWEEP、角周波数:0.0001〜100rad/sec、歪み率:1%、温度:25±0.5度を設定し測定した。
食用赤色103号(赤色染料、ダイワ化成(株)製) 2.00重量部
食用赤色104号(赤色染料、ダイワ化成(株)製) 3.00重量部
WaterYellow#6C(黄色染料、オリエント(株)製) 1.50重量部
エチレングリコール 9.00重量部
チオジグリコール 9.00重量部
ベンゾトリアゾール 0.30重量部
オレオイルサルコシンナトリウム 3.00重量部
プロクセルGXL(S)(防腐剤、ICIジャパン(株)製) 0.20重量部
ケルザンAR(キサンタンガム、三晶(株)製) 0.40重量部
イオン交換水 71.60重量部
TITONE R62N(酸化チタン、堺化学(株)製) 55.0重量部
アクリロイドB67(アクリル樹脂、ロームアンドハース社製) 9.0重量部
メチルシクロヘキサン 35.0重量部
ホモゲノールL18(ポリカルボン酸型高分子界面活性剤) 1.0重量部
以上の結果を表1に示す。
△・・・インキ逆流防止体の分離・離油が少量発生する。
×・・・インキ逆流防止体の分離・離油が発生する。
Claims (6)
- インキ収容部の開口端に向かうインキ界面に接触して層状に該インキ界面を覆うように配置され、角周波数0.0001〜100.0rad/secの範囲での貯蔵弾性率と損失弾性率の交点が、角周波数0.5rad/sec以下であるインキフォロワー流体。
- 少なくとも難揮発性もしくは不揮発性液体とゲル化剤とからなる請求項1に記載のインキフォロワー流体。
- 前記難揮発性液体もしくは不揮発性液体が、少なくとも多価アルコールを含む請求項2に記載のインキフォロワー流体。
- 前記難揮発性液体もしくは不揮発性液体が、ポリブテン、α−オレフィンオリゴマー、エチレン−α−オレフィンコポリマー、鉱物油から選ばれる1種類もしくは2種以上の混合物を含有する請求項2に記載のインキフォロワー流体。
- 前記ゲル化剤が、インキフォロワー流体全量に対して3.0重量%以上7.0重量%以下である請求項2乃至請求項4のいずれかに記載のインキフォロワー流体。
- 前記インキ収容部の内径が4.0mm以上のものに使用される請求項1乃至請求項5のいずれかに記載のインキフォロワー流体。
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