Resin composition for forming recording layer, recording medium, and image-recorded material

Patent metadata

Field	Value
Publication number	US-9890232-B2
Application number	US-201414278681-A
Country	US
Kind code	B2
Filing date	May 15, 2014
Priority date	Dec 13, 2013
Publication date	Feb 13, 2018
Grant date	Feb 13, 2018

Abstract

A resin composition for forming a recording layer, includes a resin and satisfies the following Expression (1):

20° C.≦ T 1 −T 10 ≦120° C.,  Expression (1):

wherein T 1 represents a temperature at which the viscosity of a solid sample of the resin prepared from the resin composition, measured using a flow tester, is 10 4 Pa·s under an applied pressure of 1 MPa, and T 10 represents a temperature at which the viscosity of a solid sample of the resin prepared from the resin composition, measured using a flow tester, is 10 4 Pa·s under an applied pressure of 10 MPa.

First claim

What is claimed is:

1. An image-recorded material comprising:
a recording medium comprising:
a base material; and
a recording layer formed over an entire top surface of the base material, the recording layer being a layer onto which a toner image can be fixed and comprising a resin composition which comprises a resin and satisfies the following Expression (1):
20° C.≦ T 1 −T 10 ≦120° C.,  Expression(1):

wherein T 1 represents a temperature at which the viscosity of a solid sample of the resin prepared from the resin composition, measured using a flow tester, is 10 4 Pa·s under an applied pressure of 1 MPa, and T 10 represents a temperature at which the viscosity of a solid sample of the resin prepared from the resin composition, measured using a flow tester, is 10 4 Pa·s under an applied pressure of 10 MPa, and
the resin composition comprises at least two kinds of resins having a sea-island structure;

a toner image that is formed using an electrostatic charge image developing toner on the recording layer of the recording medium and is fixed without being entirely embedded; and
a peelable image information concealing layer that coats at least a part of the toner image, in this order.

2. The image-recorded material according to claim 1 ,
wherein the at least two kinds of resins have different glass transition temperatures.

3. The image-recorded material to claim 2 ,
wherein a difference between the glass transition temperatures of the two kinds of resins is 30° C. or greater.

4. The image-recorded material according to claim 2 ,
wherein at least one of the two kinds of resins has a glass transition temperature of 40° C. or higher.

5. The image-recorded material according to claim 2 ,
wherein the content of the two kinds of resins having different glass transition temperatures is from 5% by weight to 70% by weight with respect to the total weight of the resins.

6. The image-recorded material according to claim 2 ,
wherein at least one of the two kinds of resins has a glass transition temperature of lower than 10° C.

7. The image-recorded material according to claim 1 ,
wherein an island phase of the sea-island structure has a major axis of 150 nm or less.

8. The image-recorded material according to claim 1 ,
wherein a ratio of the weight of the resin forming an island phase to the weight of the resin forming a sea phase of the sea-island structure is from 0.25 or greater.

9. The image-recorded material according to claim 1 ,
wherein the recording layer has a thickness of from 1 μm to 50 μm.

10. An image-recorded material comprising:
a recording medium comprising:
a base material; and
a recording layer formed over an entire top surface of the base material, the recording layer being a layer onto which a toner image can be fixed and comprising a resin composition which comprises a resin and satisfies the following Expression (1):
20° C.≦ T 1 −T 10 ≦120° C.,  Expression(1):

wherein T 1 represents a temperature at which the viscosity of a solid sample of the resin prepared from the resin composition, measured using a flow tester, is 10 4 Pa·s under an applied pressure of 1 MPa, and T 10 represents a temperature at which the viscosity of a solid sample of the resin prepared from the resin composition, measured using a flow tester, is 10 4 Pa·s under an applied pressure of 10 MPa;

a toner image that is formed using an electrostatic charge image developing toner on the recording layer of the recording medium and is fixed without being entirely embedded; and
a peelable image information concealing layer that coats at least a part of the toner image, in this order.

Assignees

• Fuji Xerox Co Ltd

Inventors

• Matsumura Yasuo

Classifications

• C08F212/08 Primary

  Styrene · CPC title

• C08F220/1804

  C4-(meth)acrylate, e.g. butyl (meth)acrylate, isobutyl (meth)acrylate or tert-butyl (meth)acrylate · CPC title

• Y10T428/2486

  with outer strippable or release layer · CPC title

• Y10T428/264

  Up to 3 mils · CPC title

• G03G7/004

  obtained by reactions only involving carbon-to-carbon unsaturated bonds · CPC title