TONER, IMAGE FORMING APPARATUS, IMAGE FORMING METHOD, AND TONER STORED UNIT

Title:

TONER, IMAGE FORMING APPARATUS, IMAGE FORMING METHOD, AND TONER STORED UNIT

Document Type and Number:

WIPO Patent Application WO/2016/098290

Kind Code:

A1

Abstract:

Provided is a toner including at least a binder resin, and having peak ratio W/R of from 0.20 to 0.70 when measured with FT-IR according to ATR method, W/R being a ratio of height W of maximum spectral peak attributed to bisphenol A skeleton of the toner and observed at from 1,480 cm－1 to 1,520 cm－1 to height R of maximum spectral peak attributed to carbonyl group of the toner and observed at from 1,700 cm－1 to 1,750 cm－1, wherein molecular weight distribution of the toner obtained by GPC of THF-soluble component of the toner has main peak in a range of from 1,000 to 10,000, half value width of the molecular weight distribution is a molecular weight of 20,000 or less, and content of a THF-insoluble component in the toner is from 5% by mass to 40% by mass.

More Like This:

JP2000029231	IMAGE FORMING DEVICE
JPWO2008056519	Toner and toner manufacturing method
JPS6484280	IMAGE FORMATION DEVICE

Inventors:

MATSUSHITA NATSUKO (JP)
SUZUKI TOMOMI (JP)
OGINO KOHTAROH (JP)
MORIYA TOHRU (JP)

Application Number:

PCT/JP2015/005884

Publication Date:

June 23, 2016

Filing Date:

November 26, 2015

Export Citation:

Click for automatic bibliography generation Help

Assignee:

RICOH CO LTD (JP)
MATSUSHITA NATSUKO (JP)
SUZUKI TOMOMI (JP)
OGINO KOHTAROH (JP)
MORIYA TOHRU (JP)

International Classes:

G03G9/08; G03G9/087

Foreign References:

JP2008275865A	2008-11-13
JP2007033773A	2007-02-08
US20140099577A1	2014-04-10

Other References: