Image structure, recording medium, image forming apparatus and post-process device
AssigneeFuji Xerox Co., Ltd.
InventorsOsamu Ide, Shigeru Hayashi
Life of this patent
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Abstract
An image structure includes a normal toner image formed on an image support and comprising toner particles; and an adhesive toner image formed on or around the normal toner image, serving as a repeelable adhesive layer and comprising toner particles. The toner particles of the adhesive toner image have a glass transition point Tg in a range of from 30° C. to 50° C. and a melting point Tm in a range of from 70° C. to 110° C.
Claims27
An image structure comprising:
- a normal toner image formed on an image support and comprising toner particles;
- and
- an adhesive toner image formed on or around the normal toner image, serving as a repeelable adhesive layer and comprising toner particles,
- wherein the toner particles of the adhesive toner image have a glass transition point Tg in a range of from 30° C. to 50° C. and a melting point Tm in a range of from 70° C. to 110° C.
A method of producing a toner particles of an adhesive toner image formed on or around a normal toner image on an image support, the toner particles including a thermoplastic resin, wherein the method comprising:
- melting and mixing a crystalline polyester resin and an amorphous resin to produce the thermoplastic resin,
- wherein the adhesive toner image serves as a repeelable adhesive layer,
- the toner particles of the adhesive toner image have a glass transition point Tg in a range of from 30° C. to 50° C. and a melting point Tm in a range of from 70° C. to 110° C., and
- the glass transition point Tg is lower by at least 10° C. than a glass transition point Tg′ of the amorphous resin.
The method of producing the toner particles according to 5, wherein T (° C.) is selected to be in a range of from T0 to T0+20, and t (minutes) is selected to be in a range of t0 to 10×t0,
- where T0 (° C.) is a temperature at which a luminous reflectance Y of a 20 μm-thick film is 1.5% when the film is formed from a resin obtained by melting and mixing the crystalline polyester resin and the amorphous resin for time t0 (minutes), T (° C.) is a temperature at which the crystalline polyester resin and the amorphous resin are melted and mixed, and t (minutes) is the time during which the crystalline polyester resin and the amorphous resin are melted and mixed.
A method of producing a toner particles of an adhesive toner image formed on or around a normal toner image formed on an image support, comprising:
- emulsifying a crystalline polyester resin to obtain the crystalline polyester resin emulsion particles, emulsifying an amorphous resin to obtain the amorphous resin emulsion particles, coagulating and coalescing the crystalline polyester resin emulsion particles and the amorphous emulsion particles to produce the toner particles of the adhesive toner image, wherein
- the adhesive toner image serves as a repeelable adhesive layer,
- the toner particles of the adhesive toner image have a glass transition point Tg in a range of from 30° C. to 50° C. and a melting point Tm in a range of from 70° C. to 110° C., and
- the glass transition point Tg is lower by at least 10° C. than a glass transition point Tg′ of the amorphous resin.
A recording medium comprising:
- an image support;
- and
- an image structure comprising:
- a normal toner image formed on an image support and comprising toner particles;
- and
- an adhesive toner image formed on or around the normal toner image, serving as a repeelable adhesive layer and comprising toner particles, wherein the toner particles of the adhesive toner image have a glass transition point Tg in a range of from 30° C. to 50° C. and a melting point Tm in a range of from 70° C. to 110° C.
An image forming apparatus for forming an image structure comprising a normal toner image formed on an image support and comprising toner particles;
- and an adhesive toner image formed on or around the normal toner image, serving as a repeelable adhesive layer and comprising toner particles, comprising:
- a normal image generating unit for forming the normal toner image on the image support;
- and
- an adhesive image generating unit for forming the adhesive toner image on or around the normal toner image on the image support,
- wherein the toner particles of the adhesive toner image have a glass transition point Tg in a range of from 30° C. to 50° C. and a melting point Tm in a range of from 70° C. to 110° C.,
A post-process device comprising:
- an adhesion device for bonding a recording medium repeelably through an adhesive toner image, the recording medium including an image structure formed on an image support and being folded while an image structure is on the inner side;
- wherein
- an image structure comprises:
- a normal toner image formed on the image support and comprising toner particles;
- and
- an adhesive toner image formed on or around the normal toner image, serving as a repeelable adhesive layer and comprising toner particles,
- the toner particles of the adhesive toner image have a glass transition point Tg in a range of from 30° C. to 50° C. and a melting point Tm in a range of from 70° C. to 110° C.,
- the adhesion device includes a heating and conveyance member;
- and a pressing and conveyance member driving to rotate while being in contact with the heating and conveyance member and pressed by the heating conveyance member,
- the folded recording medium is conveyed by the heating conveyance member and the pressing and conveyance member while nipped, and
- a temperature of the adhesive toner image during nippig and conveying the recording medium is in a range of from the glass transition point Tg+10° C. to Tg+20° C. and not higher than the melting point Tm−10° C.
Dependencies are inferred from the claim text.