Transfer member, manufacturing method of transfer member, transfer unit, image forming apparatus, and roller
A transfer member includes a support, an elastic layer, and a resin layer having a sea-island structure on the elastic layer, wherein elongation at break of the resin layer is from 20% to 180%, and an average diameter of an island portion thereof is from 0.5 μm to 3 μm.
1. A transfer member comprising:
a support;
an elastic layer; and
a resin layer having a sea-island structure on the elastic layer,
wherein elongation at break of the resin layer is from 20% to 180%, and an average diameter of an island portion thereof is from 0.5 μm to 3 μm.
2. The transfer member according to claim 1 , further comprising:
a resin surface layer on the resin layer,
wherein the resin surface layer has a sea-island structure, and an average diameter of an island portion is from 0.3 μm to 0.5 μm.
3. The transfer member according to claim 1 , further comprising:
a resin surface layer on the resin layer,
wherein the resin surface layer does not have a sea-island structure.
4. The transfer member according to claim 2 ,
wherein a thickness of the resin surface layer is from 1 μm to 3 μm.
5. The transfer member according to claim 3 ,
wherein a thickness of the resin surface layer is from 1 μm to 3 μm.
6. The transfer member according to claim 1 ,
wherein a thickness of the resin layer is from 5 μm to 40 μm.
7. The transfer member according to claim 1 ,
wherein a content ratio of the island portion of the resin layer is in a range of 5 volume % to 25 volume % with respect to the entire resin layer.
8. The transfer member according to claim 1 ,
wherein the resin layer is formed of a curable resin and two or more kinds of isocyanate compounds.
9. A method of manufacturing the transfer member of claim 1 , comprising:
coating a coating solution including a curable resin and two or more kinds of isocyanate compounds on the elastic layer; and
drying a coated film obtained in the coating of the coating solution while controlling a drying rate.
10. A transfer unit comprising:
the transfer member according to claim 1 ; and
an intermediate transfer member that is disposed to oppose the transfer member,
wherein the transfer unit transfers a toner image on a surface of the intermediate transfer member to a recording medium.
11. An image forming apparatus comprising:
an image holding member;
a charging unit that charges the image holding member;
an electrostatic charge image forming unit that forms an electrostatic charge image on a surface of the charged image holding member;
a developing unit that develops the electrostatic charge image formed on the image holding member with an electrostatic charge image developer containing toner as a toner image;
an intermediate transfer member to which the toner image formed on the surface of the image holding member is transferred;
a primary transfer unit that performs primary transfer of the toner image formed on the surface of the image holding member to a surface of the intermediate transfer member;
a secondary transfer unit that includes the transfer member according to claim 1 and performs secondary transfer of the toner image transferred to the surface of the intermediate transfer member to a recording medium; and
a fixing unit that fixes the toner image transferred to the recording medium.
12. A roller comprising:
a support;
an elastic layer; and
a resin layer having a sea-island structure on the elastic layer,
wherein elongation at break of the resin layer is from 20% to 180%, and an average diameter of an island portion thereof is from 0.5 μm to 3 μm.
13. The roller according to claim 12 , further comprising:
a resin surface layer on the resin layer,
wherein the resin surface layer has a sea-island structure, and an average diameter of an island portion is from 0.3 μm to 0.5 μm.