KR20040025812A - 정전하 현상용 토너, 그 제조방법, 화상형성방법,화상형성장치 및 토너 카트리지 - Google Patents
정전하 현상용 토너, 그 제조방법, 화상형성방법,화상형성장치 및 토너 카트리지 Download PDFInfo
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Abstract
Description
실시예1 | 실시예2 | 실시예3 | 실시예4 | 비교예1 | 비교예2 | 비교예3 | ||
토너의 물성 | Mn | 12100 | 29400 | 11200 | 10400 | 31300 | 7900 | 8000 |
Mz/Mw | 3.4 | 5.9 | 3.1 | 3.0 | 6.2 | 1.9 | 1.83 | |
쉘층의 두께(nm) | 293 | 210 | 289 | 282 | 525 | 672 | 0 | |
GSDp | 1.2 | 1.24 | 1.25 | 1.23 | 1.31 | 1.31 | 1.32 | |
GSDv | 1.18 | 1.10 | 1.21 | 1.22 | 1.23 | 1.23 | 1.24 | |
GSDv/SGDp | 0.98 | 0.95 | 0.97 | 0.99 | 0.94 | 0.93 | 0.94 | |
표면성지표 | 1.66 | 1.75 | 1.81 | 2.02 | 2.02 | 2.03 | 2.11 | |
SF1 | 122 | 135 | 126 | 132 | 145 | 119 | 117 | |
D50v(μm) | 6.4 | 6.4 | 6.6 | 5.8 | 6.7 | 6.7 | 6.3 | |
화상형성테스트 평가결과 | 박리성 | ○ | ○ | ○ | ○ | ○ | × | × |
정착성 | ○ | ○ | ○ | ○ | × | - | - | |
토너의 흑화·비산 | 없음 | 없음 | 없음 | 없음 | 있음 | - | - |
Claims (22)
- 수평균분자량(Mn)이 10,000 내지 30,000의 범위내이고, Z평균분자량(Mz)과 중량평균분자량(Mw)의 비(Mz/Mw)가 3.0 내지 6.0의 범위내인 것을 특징으로 하는 정전하 현상용 토너.
- 제 1항에 있어서, 체적평균 입도분포지표(GSDv)가 1.30이하이고, 상기 체적평균 입도분포지표(GSDv)와 수평균 입도분포지표(GSDp)의 비(GSDv/GSDp)가 0.95이상인 정전하 현상용 토너.
- 제 1항에 있어서, 하기식(1)로 표시되는 표면성 지표값이 2이하인 정전하 현상용 토너.[식 (1)](표면성 지표값)=(비표면적 실측값)/(비표면적 계산값)(단, 식 (1)에 있어서, 비표면적 계산값은 6Σ(n×R2)/{ρ×Σ(n×R3)}로 표시되고, 상기 비표면적 계산값을 나타내는 식에 있어서, n은 콜터 카운터에서의 채널내의 입자수(개/1채널)를 나타내고, R은 콜터 카운터에서의 채널 입경(μm)을 나타내고, ρ은 토너 밀도(g/μm3)를 나타낸다. 그리고, 상기 채널의 분할수는 16이다. 또한, 분할의 크기는 로그 스케일로 0.1간격이다.)
- 제 1항에 있어서, 식 (2)로 표시되는 형상계수(SF1)가 120 내지 135의 범위내인 정전하 현상용 토너.[식 (2)]SF1= ML2/(4A/π)×100(단, 식 (2)에 있어서, ML은 토너의 최대 길이(μm)를 나타내고, A는 토너의 투영 면적(μm2)을 나타낸다.)
- 제 1항에 있어서, 토너가 이형제를 더 함유하여 이루어지고, 상기 이형제는 160℃에서의 점도(η1)와 200℃에서의 점도(η2)의 비(η2/η1)가 0.5 내지 0.7의 범위내인 정전하 현상용 토너.
- 제 1항에 있어서, 토너 입자가 코어/쉘 구조를 갖는 정전하 현상용 토너.
- 제 6항에 있어서, 쉘층의 두께가 150 내지 300nm의 범위내인 정전하 현상용 토너.
- 제 6항에 있어서, 중심입경이 1μm 이하인 제1 수지미립자를 분산한 수지미립자 분산액과,착색제 입자를 분산한 착색제 입자 분산액 및 이형제 입자를 분산한이형제 입자 분산액을 혼합하여 상기 제1 수지미립자와 상기 착색제 입자 및 상기 이형제 입자를 포함하는 코어 응집 입자를 형성하는 제1 응집공정;상기 코어 응집 입자의 표면에 제2 수지미립자를 포함하는 쉘층을 형성하여 코어/쉘 응집입자를 얻는 제2 응집공정; 및상기 코어/쉘 응집입자를 상기 제1 수지미립자 또는 상기 제2 수지미립자의 글래스 전이온도 이상으로 가열하여 융합ㆍ합일하는 융합ㆍ합일공정;을 적어도 거쳐 제작되어 이루어진 정전하 현상용 토너.
- 수평균분자량(Mn)이 10,000 내지 30,000의 범위내이고, Z평균분자량(Mz)과 중량평균분자량(Mw)의 비(Mz/Mw)가 3.0 내지 6.0의 범위내인 정전하 현상용 토너의 제조방법으로서,중심입경이 1μm이하인 제1 수지미립자를 분산한 수지미립자 분산액과,착색제 입자를 분산한 착색제 입자 분산액 및 이형제 입자를 분산한 이형제 입자 분산액을 혼합하여 상기 제1 수지미립자와 상기 착색제 입자 및 상기 이형제 입자를 포함하는 코어 응집 입자를 형성하는 제1 응집공정;상기 코어 응집 입자의 표면에 제2 수지미립자를 포함하는 쉘층을 형성하여 코어/쉘 응집입자를 얻는 제2 응집공정; 및상기 코어/쉘 응집입자를 상기 제1 수지미립자 또는 상기 제2 수지미립자의 글래스 전이온도 이상으로 가열하여 융합ㆍ합일하는 융합ㆍ합일공정;을 적어도 포함하는 정전하 현상용 토너의 제조방법.
- 제 9항에 있어서, 쉘층의 두께가 150 내지 300nm의 범위내인 정전하 현상용 토너의 제조방법.
- 제 9항에 있어서, 상기 이형제는 160℃에서의 점도(η1)와 200℃에서의 점도(η2)의 비(η2/η1)가 0.5 내지 0.7의 범위내인 정전하 현상용 토너의 제조방법.
- 상담지체 표면을 균일하게 대전하는 대전공정과, 균일하게 대전된 상기 상담지체 표면에 화상정보에 따른 정전잠상을 형성하는 정전잠상 형성공정과, 상기 상담지체 표면에 형성된 상기 정전잠상을 적어도 토너를 포함하는 현상제에 의해 현상하여 토너상을 얻는 현상공정 및 상기 토너상을 기록매체 표면에 정착하는 정착공정을 적어도 포함하는 화상형성방법에 있어서,상기 토너의 수평균분자량(Mn)이 10,000 내지 30,000의 범위내이고, Z평균분자량(Mz)과 중량평균분자량(Mw)의 비(Mz/Mw)가 3.0 내지 6.0의 범위내인 화상형성방법.
- 제 12항에 있어서, 상기 정착공정이 가열 롤과 가압 롤을 사용하여 이루어지고, 상기 가열 롤이 이형성층을 갖지 않는 화상형성방법.
- 제 13항에 있어서, 상기 가열 롤이 금속 롤인 화상형성방법.
- 제 12항에 있어서, 상기 토너가, 체적평균 입도분포지표(GSDv)가 1.30이하이고, 상기 체적평균 입도분포지표(GSDv)와 수평균 입도분포지표(GSDp)의 비(GSDv/GSDp)가 0.95이상인 화상형성방법.
- 상담지체 표면을 균일하게 대전하는 대전수단과, 균일하게 대전된 상기 상담지체 표면에 화상정보에 따른 정전잠상을 형성하는 정전잠상 형성수단과, 상기 상담지체 표면에 형성된 상기 정전잠상을 적어도 토너를 포함하는 현상제에 의해 현상하여 토너상을 얻는 현상수단 및 상기 토너상을 기록매체 표면에 정착하는 정착수단을 적어도 포함하는 화상형성장치에 있어서,상기 토너의 수평균분자량(Mn)이 10,000 내지 30,000의 범위내이고, Z평균분자량(Mz)과 중량평균분자량(Mw)의 비(Mz/Mw)가 3.0 내지 6.0의 범위내인 것을 특징으로 하는 화상형성장치.
- 제 16항에 있어서, 상기 정착수단이 가열 롤과 가압 롤로 이루어지고, 상기 가열 롤이 이형성층을 갖지 않는 화상형성장치
- 제 17항에 있어서, 상기 가열 롤이 금속 롤인 화상형성장치.
- 제 16항에 있어서, 상기 토너가, 체적평균 입도분포지표(GSDv)가 1.30이하이고, 상기 체적평균 입도분포지표(GSDv)와 수 평균입도분포지표(GSDp)의 비(GSDv/GSDp)가 0.95이상인 화상형성장치.
- 화상형성장치에 착탈가능하도록 장착되고, 상기 화상형성장치내에 마련된 현상수단에 공급하기 위한 토너를 수납하는 토너 카트리지로서,상기 토너의 수평균분자량(Mn)이 10,000 내지 30,000의 범위내이고, Z평균분자량(Mz)과 중량평균분자량(Mw)의 비(Mz/Mw)가 3.0 내지 6.0의 범위내인 토너 카트리지.
- 제 20항에 있어서, 상기 토너가, 체적평균 입도분포지표(GSDv)가 1.30이하이고, 상기 체적평균 입도분포지표(GSDv)와 수평균 입도분포지표(GSDp)의 비(GSDv/GSDp)가 0.95 이상인 토너인 토너 카트리지.
- 제 20항에 있어서, 상기 토너가, 이형제를 더 함유하여 이루어지고, 상기 이형제는 160℃에서의 점도(η1)와 200℃에서의 점도(η2)의 비(η2/η1)가 0.5 내지 0.7의 범위내의 토너인 토너 카트리지.
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KR100799287B1 (ko) * | 2005-11-24 | 2008-01-30 | 후지제롯쿠스 가부시끼가이샤 | 정전하상 현상용 토너, 정전하상 현상용 토너의 제조 방법,정전하상 현상용 현상제 |
US8206884B2 (en) | 2007-02-23 | 2012-06-26 | Samsung Fine Chemicals Co., Ltd. | Method of preparing toner using micro-suspension particles and toner prepared using the method digital image data |
US8431296B2 (en) | 2008-07-11 | 2013-04-30 | Samsung Electronics Co., Ltd. | Electrophotographic toner, process for preparing the same, image forming method and apparatus using the toner |
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JP2005221933A (ja) * | 2004-02-09 | 2005-08-18 | Konica Minolta Business Technologies Inc | 静電荷像現像用トナー |
US7166402B2 (en) * | 2004-06-28 | 2007-01-23 | Xerox Corporation | Emulsion aggregation toner having gloss enhancement and toner release with stable xerographic charging |
JP2006047743A (ja) * | 2004-08-05 | 2006-02-16 | Ricoh Co Ltd | 画像形成用トナー及びその製造方法、画像形成装置、プロセスカートリッジ |
JP4625386B2 (ja) * | 2005-03-11 | 2011-02-02 | 株式会社リコー | 静電荷像現像用トナー及びその製造方法 |
JP4506614B2 (ja) * | 2005-03-15 | 2010-07-21 | 富士ゼロックス株式会社 | 静電荷像現像用トナー、その製造方法、および、静電荷像現像用現像剤 |
JP4513621B2 (ja) * | 2005-03-24 | 2010-07-28 | 富士ゼロックス株式会社 | 静電荷像現像用トナー及びその製造方法、並びに静電荷像現像剤、画像形成方法 |
US7691552B2 (en) * | 2006-08-15 | 2010-04-06 | Xerox Corporation | Toner composition |
KR100833920B1 (ko) * | 2007-02-23 | 2008-05-30 | 삼성정밀화학 주식회사 | 코어-쉘 구조를 갖는 토너의 제조방법 및 그 방법에 의해제조된 토너 |
GB0721065D0 (en) * | 2007-10-26 | 2007-12-05 | Fujifilm Imaging Colorants Ltd | Improvements in and relating to toners made from latexes |
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JP6365777B2 (ja) * | 2015-07-07 | 2018-08-01 | 京セラドキュメントソリューションズ株式会社 | 正帯電性トナー |
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JP2547016B2 (ja) | 1987-05-15 | 1996-10-23 | 日本カーバイド工業株式会社 | 静電荷像現像用トナ− |
US5346797A (en) * | 1993-02-25 | 1994-09-13 | Xerox Corporation | Toner processes |
JP4141078B2 (ja) * | 2000-03-14 | 2008-08-27 | 富士ゼロックス株式会社 | 静電荷像現像用トナー及び静電荷像現像用現像剤、並びに画像形成方法 |
WO2002056116A1 (en) * | 2001-01-05 | 2002-07-18 | Ricoh Company, Ltd. | Electrophotographic toner |
EP1243976A3 (en) * | 2001-03-19 | 2002-10-30 | Ricoh Company, Ltd. | Dry toner and image forming method using same |
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Cited By (3)
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KR100799287B1 (ko) * | 2005-11-24 | 2008-01-30 | 후지제롯쿠스 가부시끼가이샤 | 정전하상 현상용 토너, 정전하상 현상용 토너의 제조 방법,정전하상 현상용 현상제 |
US8206884B2 (en) | 2007-02-23 | 2012-06-26 | Samsung Fine Chemicals Co., Ltd. | Method of preparing toner using micro-suspension particles and toner prepared using the method digital image data |
US8431296B2 (en) | 2008-07-11 | 2013-04-30 | Samsung Electronics Co., Ltd. | Electrophotographic toner, process for preparing the same, image forming method and apparatus using the toner |
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CN100498555C (zh) | 2009-06-10 |
JP2004109939A (ja) | 2004-04-08 |
US20040058267A1 (en) | 2004-03-25 |
TWI303358B (en) | 2008-11-21 |
US6887638B2 (en) | 2005-05-03 |
TW200405140A (en) | 2004-04-01 |
KR100512284B1 (ko) | 2005-09-02 |
CN1484104A (zh) | 2004-03-24 |
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