JPH0440230A - Porous microcapsule and preparation thereof - Google Patents
Porous microcapsule and preparation thereofInfo
- Publication number
- JPH0440230A JPH0440230A JP2147021A JP14702190A JPH0440230A JP H0440230 A JPH0440230 A JP H0440230A JP 2147021 A JP2147021 A JP 2147021A JP 14702190 A JP14702190 A JP 14702190A JP H0440230 A JPH0440230 A JP H0440230A
- Authority
- JP
- Japan
- Prior art keywords
- porous
- microcapsule
- microcapsules
- ionic surfactant
- light
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
- 239000003094 microcapsule Substances 0.000 title claims abstract description 52
- 239000000839 emulsion Substances 0.000 claims abstract description 11
- 239000002563 ionic surfactant Substances 0.000 claims abstract description 11
- 239000000178 monomer Substances 0.000 claims abstract description 11
- 239000003999 initiator Substances 0.000 claims abstract description 7
- 238000000034 method Methods 0.000 claims abstract description 7
- PYSRRFNXTXNWCD-UHFFFAOYSA-N 3-(2-phenylethenyl)furan-2,5-dione Chemical compound O=C1OC(=O)C(C=CC=2C=CC=CC=2)=C1 PYSRRFNXTXNWCD-UHFFFAOYSA-N 0.000 claims abstract description 3
- 229920000147 Styrene maleic anhydride Polymers 0.000 claims abstract description 3
- 230000002194 synthesizing effect Effects 0.000 claims abstract 2
- 238000006116 polymerization reaction Methods 0.000 claims description 6
- 239000004094 surface-active agent Substances 0.000 claims description 6
- 239000002243 precursor Substances 0.000 claims description 5
- 239000000463 material Substances 0.000 claims description 4
- 230000003287 optical effect Effects 0.000 claims description 3
- 239000000049 pigment Substances 0.000 claims description 2
- 238000004519 manufacturing process Methods 0.000 claims 2
- 230000000977 initiatory effect Effects 0.000 claims 1
- 239000002775 capsule Substances 0.000 abstract description 6
- AZQWKYJCGOJGHM-UHFFFAOYSA-N 1,4-benzoquinone Chemical compound O=C1C=CC(=O)C=C1 AZQWKYJCGOJGHM-UHFFFAOYSA-N 0.000 abstract description 4
- 239000006185 dispersion Substances 0.000 abstract description 4
- 230000035945 sensitivity Effects 0.000 abstract description 4
- 238000000926 separation method Methods 0.000 abstract 1
- 239000000975 dye Substances 0.000 description 9
- 230000015572 biosynthetic process Effects 0.000 description 6
- 238000003786 synthesis reaction Methods 0.000 description 6
- BQZJOQXSCSZQPS-UHFFFAOYSA-N 2-methoxy-1,2-diphenylethanone Chemical compound C=1C=CC=CC=1C(OC)C(=O)C1=CC=CC=C1 BQZJOQXSCSZQPS-UHFFFAOYSA-N 0.000 description 5
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 5
- 229920002799 BoPET Polymers 0.000 description 4
- 239000004372 Polyvinyl alcohol Substances 0.000 description 4
- 239000007864 aqueous solution Substances 0.000 description 4
- 239000012528 membrane Substances 0.000 description 4
- 229920002451 polyvinyl alcohol Polymers 0.000 description 4
- 239000007788 liquid Substances 0.000 description 3
- 238000003756 stirring Methods 0.000 description 3
- 229910052724 xenon Inorganic materials 0.000 description 3
- FHNFHKCVQCLJFQ-UHFFFAOYSA-N xenon atom Chemical compound [Xe] FHNFHKCVQCLJFQ-UHFFFAOYSA-N 0.000 description 3
- RPNUMPOLZDHAAY-UHFFFAOYSA-N Diethylenetriamine Chemical compound NCCNCCN RPNUMPOLZDHAAY-UHFFFAOYSA-N 0.000 description 2
- 239000005057 Hexamethylene diisocyanate Substances 0.000 description 2
- 239000002202 Polyethylene glycol Substances 0.000 description 2
- VYPSYNLAJGMNEJ-UHFFFAOYSA-N Silicium dioxide Chemical compound O=[Si]=O VYPSYNLAJGMNEJ-UHFFFAOYSA-N 0.000 description 2
- DAKWPKUUDNSNPN-UHFFFAOYSA-N Trimethylolpropane triacrylate Chemical compound C=CC(=O)OCC(CC)(COC(=O)C=C)COC(=O)C=C DAKWPKUUDNSNPN-UHFFFAOYSA-N 0.000 description 2
- -1 aromatic azide Chemical class 0.000 description 2
- 125000003118 aryl group Chemical group 0.000 description 2
- 150000001875 compounds Chemical class 0.000 description 2
- 239000012153 distilled water Substances 0.000 description 2
- RRAMGCGOFNQTLD-UHFFFAOYSA-N hexamethylene diisocyanate Chemical compound O=C=NCCCCCCN=C=O RRAMGCGOFNQTLD-UHFFFAOYSA-N 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 239000002736 nonionic surfactant Substances 0.000 description 2
- 229920001223 polyethylene glycol Polymers 0.000 description 2
- 229920000139 polyethylene terephthalate Polymers 0.000 description 2
- 239000005020 polyethylene terephthalate Substances 0.000 description 2
- 229920000642 polymer Polymers 0.000 description 2
- ZAMUDYFFFFHBNY-UHFFFAOYSA-N 10-diazonioanthracen-9-olate Chemical compound C1=CC=C2C([O-])=C(C=CC=C3)C3=C([N+]#N)C2=C1 ZAMUDYFFFFHBNY-UHFFFAOYSA-N 0.000 description 1
- GEOQDCBHAVUVST-UHFFFAOYSA-N 10-diazoniophenanthren-9-olate Chemical compound C1=CC=C2C([O-])=C([N+]#N)C3=CC=CC=C3C2=C1 GEOQDCBHAVUVST-UHFFFAOYSA-N 0.000 description 1
- MWKAGZWJHCTVJY-UHFFFAOYSA-N 3-hydroxyoctadecan-2-one Chemical compound CCCCCCCCCCCCCCCC(O)C(C)=O MWKAGZWJHCTVJY-UHFFFAOYSA-N 0.000 description 1
- BWGNESOTFCXPMA-UHFFFAOYSA-N Dihydrogen disulfide Chemical compound SS BWGNESOTFCXPMA-UHFFFAOYSA-N 0.000 description 1
- PPBRXRYQALVLMV-UHFFFAOYSA-N Styrene Chemical compound C=CC1=CC=CC=C1 PPBRXRYQALVLMV-UHFFFAOYSA-N 0.000 description 1
- 125000000217 alkyl group Chemical group 0.000 description 1
- 150000008365 aromatic ketones Chemical class 0.000 description 1
- XEVRDFDBXJMZFG-UHFFFAOYSA-N carbonyl dihydrazine Chemical compound NNC(=O)NN XEVRDFDBXJMZFG-UHFFFAOYSA-N 0.000 description 1
- JLQUFIHWVLZVTJ-UHFFFAOYSA-N carbosulfan Chemical compound CCCCN(CCCC)SN(C)C(=O)OC1=CC=CC2=C1OC(C)(C)C2 JLQUFIHWVLZVTJ-UHFFFAOYSA-N 0.000 description 1
- 239000003795 chemical substances by application Substances 0.000 description 1
- 238000005354 coacervation Methods 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 229920001577 copolymer Polymers 0.000 description 1
- 239000012954 diazonium Substances 0.000 description 1
- 150000001989 diazonium salts Chemical class 0.000 description 1
- 238000001035 drying Methods 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 238000005538 encapsulation Methods 0.000 description 1
- 230000002401 inhibitory effect Effects 0.000 description 1
- 230000001678 irradiating effect Effects 0.000 description 1
- 235000010270 methyl p-hydroxybenzoate Nutrition 0.000 description 1
- 239000004292 methyl p-hydroxybenzoate Substances 0.000 description 1
- LXCFILQKKLGQFO-UHFFFAOYSA-N methylparaben Chemical compound COC(=O)C1=CC=C(O)C=C1 LXCFILQKKLGQFO-UHFFFAOYSA-N 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000010526 radical polymerization reaction Methods 0.000 description 1
- 239000000377 silicon dioxide Substances 0.000 description 1
Landscapes
- Color Printing (AREA)
- Manufacturing Of Micro-Capsules (AREA)
Abstract
Description
【発明の詳細な説明】
〔産業上の利用分野〕
本発明は、記録材料などに用いられている多孔質マイク
ロカプセルに関して、界面活性剤としてイオン性界面活
性剤を用いて合成し、光に対してより高感度に硬化する
ことができる多孔質マイクロカプセルに関するものであ
る。Detailed Description of the Invention [Field of Industrial Application] The present invention relates to porous microcapsules used in recording materials, etc., which are synthesized using an ionic surfactant as a surfactant, and which are resistant to light. This invention relates to porous microcapsules that can be cured with higher sensitivity.
本発明は、多孔質マイクロカプセル合成の際のマイクロ
カプセルの原型となるＯ／Ｗ型（油−水界面型）エマル
ジョン作成時に用いる界面活性剤としてイオン性界面活
性剤を使用することにより、光に対してより高感度に硬
化可能な多孔質マイクロカプセルを合成することを目的
としている。The present invention uses an ionic surfactant as a surfactant to create an O/W type (oil-water interface type) emulsion, which is the prototype of microcapsules during the synthesis of porous microcapsules. The purpose of this study is to synthesize porous microcapsules that can be cured with higher sensitivity.
従来、マイクロカプセル合成時の界面活性剤としてはポ
リビニルアルコール（ＰＶＡ）やポリエチレングリコー
ル（ＰＥＧ）や５ｏｌｂｉｔａｎ誘導体等の非イオン性
界面活性剤を用いていた。Conventionally, nonionic surfactants such as polyvinyl alcohol (PVA), polyethylene glycol (PEG), and 5olbitan derivatives have been used as surfactants during microcapsule synthesis.
従来用いていた非イオン性界面活性剤を用いて重合生モ
ノマーを含有した多孔質マイクロカプセルを合成すると
、その合成過程で多孔質マイクロカプセル中に水が侵入
してラジカル重合などの重合性モノマーの重合反応が阻
害される。従って、その重合生成物は低分子にとどまる
かあるいは全く重合反応が進行せず、多孔質マイクロカ
プセル内部を完全に硬化させるまでに至らなかった。When porous microcapsules containing polymerizable monomers are synthesized using conventionally used nonionic surfactants, water enters the porous microcapsules during the synthesis process, leading to radical polymerization of the polymerizable monomers. Polymerization reaction is inhibited. Therefore, the polymerization product remained in a low molecular weight, or the polymerization reaction did not proceed at all, and the inside of the porous microcapsule was not completely cured.
上記課題を解決するために多孔質マイクロカプセル合成
過程において、マイクロカプセルの原型であるＯ／Ｗ型
エマルジョン作成時に、より安定なエマルシヨンを得る
ための界面活性剤としてイオン性界面活性剤を用いた。In order to solve the above problems, in the porous microcapsule synthesis process, an ionic surfactant was used as a surfactant to obtain a more stable emulsion when creating an O/W emulsion, which is the prototype of the microcapsule.
〔作用〕
イオン性界面活性剤を用いることにより、エマルジョン
中への水の侵入を有効に防止できるため、それによって
合成した多孔質マイクロカプセルに、多孔質マイクロカ
プセル中の光重合開始剤の感光波長の光を含む光を照射
することで多孔質マイクロカプセル中の重合性モノマー
はその重合反応を阻害されることなく高分子化し硬化す
ることが可能となる。[Function] By using an ionic surfactant, it is possible to effectively prevent water from entering the emulsion. By irradiating with light containing light, the polymerizable monomer in the porous microcapsules can be polymerized and cured without inhibiting the polymerization reaction.
本発明におけるイオン性界面活性剤としては、以下に示
す様な分子構造を持つものを用いることができる。As the ionic surfactant in the present invention, those having the molecular structure shown below can be used.
Ｒ−ＣＯＯＮａ ； Ｒ−ＯＳＯＪａ ； Ｒ＋−３
ＯＪａＲ＋＋０５ＯＮａ）ＣＯＯ−Ｒｔ
Ｒ＋−ＣＯＮＨ−Ｒｚ−ＣＨｔＣＨｘＯ３ＯＪａＲ−Ｏ
Ｐ＋０Ｎａ） ｘ
Ｒ＋−ＣＯＮ−ＲｔＣＨｘＣＨｚＳＯＪａＲｌｌ：アル
キル Ｘ：ハロゲン本発明における多孔質マイ
クロカプセル合成法としては公知の界面重合法・ｉｎ
５ｉｔｕ重合法・コアセルベーション法等を用いること
ができる。R-COONa; R-OSOJa; R+-3
OJaR++05ONa)COO-Rt R+-CONH-Rz-CHtCHxO3OJaR-O
P+0Na) x R+-CON-RtCHxCHzSOJaRll: Alkyl
A 5 itu polymerization method, a coacervation method, etc. can be used.
また有効な重合性モノマーとしては、分子内に少なくと
も２以上のエチレン性不飽和基を有するモノマーや末端
あるいは側鎖にエチレン性の不飽和性を有するポリマー
を用いることができる。Further, as effective polymerizable monomers, monomers having at least two or more ethylenically unsaturated groups in the molecule and polymers having ethylenically unsaturated properties at the ends or side chains can be used.
光重合開始剤としては、キノン、アシロイン、ジアゾア
ントロン、ジアゾニウム塩、ジアゾフエナントロン、ジ
スルフィド、芳香族アジド、芳香族ケトン、芳香族アゾ
スルホネート、芳香族カルバジド等を用いることができ
る。As the photopolymerization initiator, quinone, acyloin, diazoanthrone, diazonium salt, diazophenanthrone, disulfide, aromatic azide, aromatic ketone, aromatic azosulfonate, aromatic carbazide, etc. can be used.
以下に本発明の実施例を示すが、本発明はこれに限定さ
れるものではない。Examples of the present invention are shown below, but the present invention is not limited thereto.
（実施例１：光硬化可能な多孔質マイクロカプセルの合
成）
重合性子ツマ−としてのトリメチロールプロパンチリア
クリレート（ＴＭＰＴＡ）５０重量部中に光重合開始剤
としてベンゾインメチルエーテル（ＢＭＥ）０．１重量
部とカプセル膜を構成するモノマー１としてヘキサメチ
レンジイソシアネート（ＨＭＤＩ）２重量部を溶解して
カプセル内包液とした。(Example 1: Synthesis of photocurable porous microcapsules) 0.1 weight of benzoin methyl ether (BME) as a photopolymerization initiator was added to 50 parts by weight of trimethylolpropane triacrylate (TMPTA) as a polymerizable polymer. 2 parts by weight of hexamethylene diisocyanate (HMDI) as the monomer 1 constituting the capsule membrane were dissolved to prepare a capsule enclosing liquid.
これとは別に、スチレン−′無水マレイン酸共重合体２
重量部を１９８重量部の蒸留水に混合して撹拌しながら
溶解し、１％（Ｗ／Ｗ）水溶液とした。Separately, styrene-'maleic anhydride copolymer 2
Part by weight was mixed with 198 parts by weight of distilled water and dissolved with stirring to obtain a 1% (W/W) aqueous solution.
先に調整したカプセル内包液とスチレン−無水マレイン
酸共重合体水溶液を混合して拡散し、０／Ｗ型エマルジ
ツンとした。その後メカニカルスターラーで攪拌を続け
ながら、カプセル膜を構成するモノマー２としてジエチ
レントリアミン（ＤＥＴＡ）１．５５ｇを蒸留水で希釈
してエマルジラン分散液中に滴下した。The previously prepared capsule encapsulating liquid and the styrene-maleic anhydride copolymer aqueous solution were mixed and diffused to form an 0/W type emulsion. Thereafter, while stirring with a mechanical stirrer, 1.55 g of diethylenetriamine (DETA) was diluted with distilled water as the monomer 2 constituting the capsule membrane and added dropwise to the emulgyran dispersion.
その後もメカニカルスターラーで攪拌しながら約３時間
カプセル膜を重合して、多孔質マイクロカプセル分散液
を得た。この分散液から遠心分離機を用いて多孔質マイ
クロカプセルを分離した。Thereafter, the capsule membrane was polymerized for about 3 hours while stirring with a mechanical stirrer to obtain a porous microcapsule dispersion. Porous microcapsules were separated from this dispersion using a centrifuge.
分離した多孔質マイクロカプセルに３００Ｗのキセノン
ショートアークランプから光照射を行ったところ、約１
秒で多孔質マイクロカプセルは完全に硬化した。When the separated porous microcapsules were irradiated with light from a 300W xenon short arc lamp, approximately 1
The porous microcapsules were completely hardened in seconds.
（実施例２：記録材料としての応用）
実施例１で調整したマイクロカプセル内包液に染料前駆
体として、マゼンタ色に発色するロイコ染料を溶解して
同様の方法でカプセル化を行った。(Example 2: Application as a recording material) A leuco dye that develops a magenta color was dissolved as a dye precursor in the microcapsule encapsulating liquid prepared in Example 1, and encapsulation was performed in the same manner.
分離した多孔質マイクロカプセル５重量部を３％（Ｗ／
Ｗ）のＰＶＡ水溶液５重量部と混合してその一部をポリ
エチレンテレフタレート（ＰＥＴ）フィルム（厚さ約１
０μｍ）上ヘパーコーターを用いて塗布して充分に乾燥
し多孔質マイクロカプセルシートとした。その後、３０
０Ｗのキセノンランプの光を多孔質マイクロカプセルシ
ートの多孔質マイクロカプセル側から２秒間照射して、
顕色剤（ｐ−ヒドロキシ安息香酸メチルとシリカの混合
物）を塗布した紙に、ＰＥＴフィルム上の多孔質マイク
ロカプセルと顕色剤が接するように重ねＰＥＴフィルム
の多孔質マイクロカプセルが塗布されてない面からサー
マルヘッドで加熱した。5 parts by weight of separated porous microcapsules were added to 3% (W/
W) with 5 parts by weight of PVA aqueous solution and a part of it was mixed with a polyethylene terephthalate (PET) film (thickness approx.
A porous microcapsule sheet was obtained by coating with a Hepercoater (0 μm) and thoroughly drying. After that, 30
Light from a 0W xenon lamp was irradiated for 2 seconds from the porous microcapsule side of the porous microcapsule sheet.
Paper coated with a color developer (a mixture of methyl p-hydroxybenzoate and silica) is layered so that the porous microcapsules on the PET film are in contact with the color developer, and the porous microcapsules on the PET film are not coated. It was heated from the side with a thermal head.
その結果、光照射されていない部分からはロイコ染料が
放出され顕色剤と反応して発色したが、光照射部分はマ
イクロカプセルが硬化してロイコ染料は放出されずに染
料の発色も見られなかった。As a result, the leuco dye was released from the areas that were not exposed to light and reacted with the color developer to develop color, but in the areas that were exposed to light, the microcapsules hardened and the leuco dye was not released and color development of the dye was observed. There wasn't.
このように光硬化が可能なマイクロカプセル中に染料前
駆体や染料・顔料を内包させることによって記録材料へ
の応用も可能になる。In this way, by encapsulating dye precursors, dyes, and pigments in photocurable microcapsules, it becomes possible to apply them to recording materials.
（実施例３）
実施例２においてＢＭＥの代わりに５００ ｎｍ付近に
感光波長をもつ、光重合開始剤を用いて、実施例２と同
様に多孔質マイクロカプセルを合成し、ＰＥＴフィルム
に塗布して多孔質マイクロカプセルシートとした。(Example 3) Porous microcapsules were synthesized in the same manner as in Example 2, using a photopolymerization initiator with a photosensitive wavelength around 500 nm instead of BME, and coated on a PET film. It was made into a porous microcapsule sheet.
この多孔質マイクロカプセルシートにキセノンショート
アークランプから５００ ｎｍのバンドパスフィルター
を通した光を約２秒間照射し、実施例２と同様に熱転写
した。This porous microcapsule sheet was irradiated with light through a 500 nm band-pass filter from a xenon short arc lamp for about 2 seconds, and thermal transfer was performed in the same manner as in Example 2.
その結果、光照射部分の発色はなく光書き込みされた事
が確認できた。As a result, it was confirmed that there was no color development in the light irradiated area, and that light writing had been performed.
（実施例４）
実施例２において、染料前駆体としてはシアン色に発色
する化合物を用いて、さらにＢＭＥの代わりに６５０ｎ
ｍ付近に感光波長をもつ光重合開始剤を用いて、実施例
２と同様に多孔質マイクロカプセルを合成し、多孔質マ
イクロカプセルシートを作成した。この多孔質マイクロ
カプセルシートに６５０ ｎｍバンドパスフィルターを
通した光を約２秒間照射し、熱転写した結果実施例２・
３と同様に光書き込み可能な事が確認された。(Example 4) In Example 2, a cyan-colored compound was used as the dye precursor, and 650n was used instead of BME.
Porous microcapsules were synthesized in the same manner as in Example 2 using a photopolymerization initiator having a photosensitive wavelength around m to create a porous microcapsule sheet. This porous microcapsule sheet was irradiated with light that passed through a 650 nm band-pass filter for about 2 seconds, and the result of thermal transfer was Example 2.
Similar to 3, it was confirmed that optical writing was possible.
（実施例５）
実施例２において、染料前駆体としてはイエロー色に発
色する化合物を用いて、さらにＢＭＥの代わりに４００
ｎｍ付近に感光波長をもつ光重合開始剤を用いて、実施
例２と同様に多孔質マイクロカプセルを合成し、多孔質
マイクロカプセルシートを作成した。この多孔質マイク
ロカプセルシートに４００ ｎｍバンドパスフィルター
を通した光を約１秒間照射し、熱転写した結果上記実施
例と同様に光書き込み可能な事が確認された。(Example 5) In Example 2, a compound that develops a yellow color was used as the dye precursor, and 400% was added instead of BME.
Porous microcapsules were synthesized in the same manner as in Example 2 using a photopolymerization initiator having a photosensitive wavelength in the vicinity of nm to create a porous microcapsule sheet. This porous microcapsule sheet was irradiated with light that had passed through a 400 nm band-pass filter for about 1 second, and as a result of thermal transfer, it was confirmed that optical writing was possible in the same manner as in the above example.
（実施例６）
実施例３，４．５において合成した多孔質マイクロカプ
セル各１重量部づつと３％（Ｗ／Ｗ）ＰＶＡ水溶液３重
量部を充分に混合して、その一部をＰＥＴフィルムに塗
布して多孔質マイクロカプセルシートとした。このシー
トに、６５０ｎｍ・５００ｎｍ・４００ｎｍのそれぞれ
のバンドパスフィルターを通した光をこの順番に照射し
て、上記の実施例と同様に顕色剤を塗布した紙に熱転写
を行った。(Example 6) 1 part by weight of each of the porous microcapsules synthesized in Examples 3 and 4.5 and 3 parts by weight of a 3% (W/W) PVA aqueous solution were thoroughly mixed, and a portion of the mixture was applied to a PET film. A porous microcapsule sheet was prepared by applying the powder to the membrane. This sheet was irradiated with light that had passed through band pass filters of 650 nm, 500 nm, and 400 nm in this order, and thermal transfer was performed on paper coated with a color developer in the same manner as in the above example.
その結果、フルカラー記録できる事が確認された。As a result, it was confirmed that full color recording was possible.
本発明は、以上に述べたように光硬化が可能な多孔質マ
イクロカプセルの合成過程において、０／Ｗ型エマルジ
ョン作成の際の界面活性剤としてイオン性界面活性剤を
用いることで光に対してより高感度に硬化する多孔質マ
イクロカプセルを提供することができる。As described above, in the synthesis process of photocurable porous microcapsules, the present invention uses an ionic surfactant as a surfactant when creating an O/W type emulsion. Porous microcapsules that cure with higher sensitivity can be provided.
以上 出願人 セイコー電子工業株式会社 代理人 弁理士 林 敬 之 助 手続補正書（帥） 平成 ２年９ 月１１that's all Applicant: Seiko Electronics Industries Co., Ltd. Agent: Patent Attorney Takayoshi Hayashi Procedural amendment (marshal) September 11, 1990
Claims (4)
イクロカプセルの原型としてのＯ／Ｗ型エマルジョン作
成時に用いる界面活性剤としてイオン性界面活性剤を用
いることを特徴とする多孔質マイクロカプセルの製造方
法。(1) A method for producing porous microcapsules, which is characterized in that an ionic surfactant is used as a surfactant for preparing an O/W type emulsion as a prototype of microcapsules in the process of synthesizing porous microcapsules.
ン酸共重合体である請求項１記載の多孔質マイクロカプ
セルの製造方法。(2) The method for producing porous microcapsules according to claim 1, wherein the ionic surfactant is a styrene-maleic anhydride copolymer.
性モノマーと光照射により前記重合性モノマーの重合を
開始させることのできる光重合開始剤を含有することを
特徴とする多孔質マイクロカプセル。(3) A porous microcapsule according to claim 1, wherein the porous microcapsule contains a polymerizable monomer and a photopolymerization initiator capable of initiating polymerization of the polymerizable monomer upon irradiation with light.
前駆体・染料・顔料のいずれか一つ以上が含有され、光
書き込み熱転写型の記録材料として用いる事ができるこ
とを特徴とする多孔質マイクロカプセル。(4) The porous microcapsule according to claim 1 contains at least one of a dye precursor, a dye, and a pigment, and can be used as a recording material of optical writing thermal transfer type. .
Priority Applications (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2147021A JPH0440230A (en) | 1990-06-05 | 1990-06-05 | Porous microcapsule and preparation thereof |
| US07/682,914 US5292458A (en) | 1990-04-10 | 1991-04-09 | Method of producing photosensitive microcapsules |
| US08/132,579 US5510224A (en) | 1990-01-17 | 1993-10-06 | Photosensitive microcapsule for photoimaging and thermal development recording media |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP2147021A JPH0440230A (en) | 1990-06-05 | 1990-06-05 | Porous microcapsule and preparation thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0440230A true JPH0440230A (en) | 1992-02-10 |
Family
ID=15420755
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP2147021A Pending JPH0440230A (en) | 1990-01-17 | 1990-06-05 | Porous microcapsule and preparation thereof |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0440230A (en) |
Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56115635A (en) * | 1980-02-18 | 1981-09-10 | Kanzaki Paper Mfg Co Ltd | Production of microcapsule |
| JPS57179836A (en) * | 1981-04-28 | 1982-11-05 | Fuji Photo Film Co Ltd | Photosensitive material |
| JPS5840142A (en) * | 1981-09-03 | 1983-03-09 | Kanzaki Paper Mfg Co Ltd | Preparation of microcapsule |
| JPS6124495A (en) * | 1984-06-15 | 1986-02-03 | ザ、ミ−ド、コ−ポレ−シヨン | Photosensitive micro-capsule available for forming multi-color picture |
| JPS63200830A (en) * | 1987-02-11 | 1988-08-19 | ローヌ−プーラン・シミ | Method of improving micro-capsulization by interfacial polyaddition |
| JPS63269146A (en) * | 1987-04-28 | 1988-11-07 | Fuji Photo Film Co Ltd | Photosensitive microcapsule and photosensitive material |
| JPH0281679A (en) * | 1988-09-20 | 1990-03-22 | Seiko Instr Inc | Photosensitive thermal transfer recording material |
-
1990
- 1990-06-05 JP JP2147021A patent/JPH0440230A/en active Pending
Patent Citations (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS56115635A (en) * | 1980-02-18 | 1981-09-10 | Kanzaki Paper Mfg Co Ltd | Production of microcapsule |
| JPS57179836A (en) * | 1981-04-28 | 1982-11-05 | Fuji Photo Film Co Ltd | Photosensitive material |
| JPS5840142A (en) * | 1981-09-03 | 1983-03-09 | Kanzaki Paper Mfg Co Ltd | Preparation of microcapsule |
| JPS6124495A (en) * | 1984-06-15 | 1986-02-03 | ザ、ミ−ド、コ−ポレ−シヨン | Photosensitive micro-capsule available for forming multi-color picture |
| JPS63200830A (en) * | 1987-02-11 | 1988-08-19 | ローヌ−プーラン・シミ | Method of improving micro-capsulization by interfacial polyaddition |
| JPS63269146A (en) * | 1987-04-28 | 1988-11-07 | Fuji Photo Film Co Ltd | Photosensitive microcapsule and photosensitive material |
| JPH0281679A (en) * | 1988-09-20 | 1990-03-22 | Seiko Instr Inc | Photosensitive thermal transfer recording material |
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