JP2003107772A - Manufacturing method for support for electrophotographic image receiving paper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a support for an electrophotographic image receiving paper by which an image more excellent in gloss and image quality can be formed even in the case of high temperature fixation. SOLUTION: The manufacturing method for the support for the electrophotographic image receiving paper comprises a stage (1) for subjecting the surface of a base paper to the treatment selected from the group consisting of corona treatment, plasma treatment and flame treatment with >=0.010 kW/m<2> / min and a stage (2) for coating the surface of the base paper subjected to the treatment with a polypropylene resin layer by fusion-extruding the polypropylene resin having 18-50 g/10 min melt flow rate (MFR) to the surface. In the stage (2), the polypropylene resin is fusion-extruded at 280-315 deg.C and ozone gas having 10-50 g/m<3> ozone concentration is applied to the surface bonded to the base paper of the melted film of the polypropylene resin.

Description

DETAILED DESCRIPTION OF THE INVENTION [0001] BACKGROUND OF THE INVENTION 1. Field of the Invention
Electrophotographic image receiving paper support with excellent adhesion to the pyrene resin layer
The present invention relates to a method for manufacturing a body. [0002] Conventionally, as an electrophotographic image receiving paper, a basic paper has been used.
A polyethylene resin layer is directly formed on the paper surface.
Further, there are known ones in which an image receiving layer is formed (for example,
For example, Japanese Patent Laid-Open No. 2000-10327). In general, electronic
Photographic paper can be used as the fixing temperature increases.
As the fixing time increases, the glossiness and image quality are improved.
An image can be formed. However, the polyethylene resin layer
Although it has excellent adhesion to the base paper, it is heat resistant.
Because it is small, when fixing at higher temperatures,
Blister at the interface between paper and polyethylene resin layer
(Or foaming) and formed on the polyethylene resin layer
Affects the image on the toner image-receiving layer.
There is a problem of greatly reducing the glossiness and image quality of the image. Until now, as a method to prevent blisters
For example, in Japanese Patent Laid-Open No. 5-241365, a base paper
Coated with a crosslinkable resin such as polyester or polyurethane
After that, a technology to provide a resin layer cured by radiation is proposed
Has been. However, radiation curable resin layers are heat resistant.
But the manufacturing process is complex, and
Manufacturing facilities are complex and expensive, and productivity is low
There are problems to be solved. On the other hand, the present applicant shall
Polypropylene resin provided in direct contact with both sides
Layer and one or both of the polypropylene resin layers
An electrophotographic image receiving paper having a toner image receiving layer formed thereon
The polypropylene resin layer constituting the polypropylene resin layer
As fat, 18-50 melt flow rate (MFR) and
Polypropylene resin having a density of 0.890 or more
By using the blister questions in a simple way
The image can be formed with excellent glossiness and image quality.
Found that electrophotographic image receiving paper can be manufactured and applied for a patent.
The application of 2001-162853 is filed. The electrophotographic image receiving paper according to the above application
Compared with conventional electrophotographic image receiving paper,
An image with excellent glossiness and image quality that can prevent raw
An electrophotographic image-receiving paper that can be formed is obtained. However,
In recent years, the demand for image quality and glossiness has increased.
Even for high temperature and long-term fixing,
An image with excellent image quality and gloss without star generation
There is a strong demand for image paper for electrophotography that can be formed.
It is becoming. [0005] Therefore, the present invention is highly effective.
An image with even better glossiness and image quality for heat fixing
Providing a support for an electrophotographic image-receiving paper that can be formed
For the purpose. [0006] Means for Solving the Problems The present inventor has solved the above problems.
As a result of earnest study to achieve (1) surface of the base paper
0.010kw / m²Corona treatment with output of more than / min
Select from the group consisting of physical processing, plasma processing and flame processing
And (2) the processing of the base paper.
18 to 50 g / 10 min melt flow on the treated surface
-Melt-pressing polypropylene resin with MFR
The polypropylene on the surface
Coating the resin layer, and in the step (2)
And the polypropylene resin is 280-315 ° C.
Melt-extruded, and into the polypropylene resin melt film
On the other hand, 10-50 g / m on the surface bonded to the base paper.^Three
By applying ozone gas with ozone concentration of
Do not generate blisters when fixing at high temperatures.
And can provide images with excellent gloss and image quality.
It is possible to produce a support that can be used for image-receiving paper for child photographs.
The headline, the present invention has been reached. By the way,
Japanese Patent Laid-Open No. 8-258234 discloses a simple and economical base material.
On how to laminate a resin layer such as polyethylene resin
Are disclosed. In this method, surface oxidation treatment is applied to the substrate.
Meanwhile, laminating resin is melt extruded into a film
When performing ozone treatment on the surface of the molten resin layer,
Then, the molten resin layer is applied to the surface of the base material by the ozone treatment.
Contact so that the surface is facing the surface oxidized surface of the substrate
And then pressure-bonding the substrate and the laminate resin layer
It is. However, the above publication discloses a plastic substrate.
A technology that laminates polyethylene resin, etc.
On the other hand, in the case of melt extrusion of polypropylene resin
Absent. In addition, the above publication describes the use of laminated films as follows:
Open laminated films used for packaging materials such as food
Electrophotographic image receivers that require fixing operations
There is no disclosure of the use of the substrate for paper.
Yes. [0007] DETAILED DESCRIPTION OF THE INVENTION The present invention is described in detail below.
Light up.Base paper As a base paper used for the electrophotographic image receiving paper of the present invention,
Base paper is used. Pulp that can be used as raw material for base paper
As the surface smoothness, rigidity and dimensional stability of the base paper
At the same time in a balanced and sufficient level.
From the point of improving the hardwood bleached kraft pulp (LBK)
P) is preferred, but softwood bleached kraft pulp (NBK)
P) or hardwood sulfite pulp (LBSP)
You can also For beaten pulp, beaters and referers
Inner etc. can be used. Obtained after beating the pulp
Pulp slurry (hereinafter referred to as “pulp paper stock”)
A), if necessary, various additives, such as fillers
Dry paper strength enhancer, sizing agent, wet paper strength enhancer, fixing
Agents, pH adjusters, other agents, etc. are added. As a filler, for example, calcium carbonate
Clay, kaolin, white clay, talc, titanium oxide, silica
Algae, barium sulfate, aluminum hydroxide, mug hydroxide
Examples include nesium. Examples of dry paper strength enhancers
For example, cationized starch or cationized polyacrylamide
, Anionized polyacrylamide, amphoteric polyacryl
Amides, carboxy-modified polyvinyl alcohol, etc.
It is done. Examples of sizing agents include fatty acid salts and logistic agents.
Rosin derivatives such as
, Alkyl ketene dimer, alkenyl anhydride
Acid (ASA), epoxidized fatty acid amide, etc.
The Examples of the wet paper strength enhancer include polya
Min polyamide epichlorohydrin, melamine resin,
Examples include urea resins and epoxidized polyamide resins.
Examples of the fixing agent include aluminum sulfate and ammonium chloride.
Multivalent metal salts such as luminium, cations such as cationized starch
And polymers. Examples of pH adjusters
Examples thereof include caustic soda and sodium carbonate. That
Examples of other drugs include antifoaming agents, dyes, and slime
Examples thereof include control agents and fluorescent brighteners. Also required
If necessary, a softening agent or the like can be added. flexible
For example, new paper processing manual (paper medicine time)
Ed.) Pp. 554-555 (issued in 1980)
The The treatment liquid used for the surface sizing treatment includes
For example, water-soluble polymers, sizing agents, water-resistant substances, face
Contains a colorant, pH adjuster, dye, fluorescent whitening agent, etc.
Also good. Examples of water-soluble polymers include cationized starch.
Powder, polyvinyl alcohol, carboxy-modified polyvinylini
Alcohol, carboxymethylcellulose, hydroxy
Siethylcellulose, cellulose sulfate, gelatin
, Casein, sodium polyacrylate, styrene
Maleic anhydride copolymer sodium salt, polystyrene
Examples include sodium sulfonate. Examples of the sizing agent include petroleum resin emma.
Rujon and styrene-maleic anhydride copolymer alkyl
Ruester ammonium salt, rosin, higher fatty acid salt,
Alkyl ketene dimer (AKD), epoxidized fatty acid
Examples include amides. Examples of water resistant materials include:
Styrene-butadiene copolymer, ethylene-vinyl acetate
Copolymer, polyethylene, vinylidene chloride copolymer, etc.
Latex and emulsion, polyamide polyamine
Epichlorohydrin is mentioned. As a pigment, for example, calcium carbonate
, Clay, kaolin, talc, barium sulfate, oxide
And the like. Examples of base paper materials are listed above.
In addition to natural pulp paper, synthetic pulp paper and natural pulp are combined.
Made synthetic pulp mixed paper and various kinds of laminated paper
Can be. The thickness of the base paper is usually 30 to 500 μm.
m, preferably 50 to 300 μm, particularly preferably
It is suitable that it is 100-200 micrometers. Above
Such base paper is rigid and dimensional stability of electrophotographic image receiving paper.
In terms of improving (curling), Young's modulus in the vertical direction (Ea
 ) And the transverse Young's modulus (Eb) (Ea / Eb) is 1.
It is preferable that it exists in the range of 5-2.0. Ea / Eb value
In the range of less than 1.5 or more than 2.0,
When the image receiving paper is used, its rigidity and curl are likely to deteriorate,
As this will interfere with the running performance of
Yes. In general, a paper “strain” is a phase of beating.
It is known that the difference is based on the difference.
Represents the degree of paper “strain” in the elasticity (rate) of paper
It can be used as an important factor. In particular, paper
The relationship between the dynamic elastic modulus, which indicates the physical properties of a viscoelastic body, and the density
Sound that propagates through the paper using ultrasonic transducers
By measuring the speed, the elastic modulus of the paper can be obtained from the following formula.
You can E = ρc² (1-ν² ) [E: Dynamic elastic modulus, ρ: Density, c: Speed of sound in paper, ν: Po
Asson ratio) In the case of ordinary paper, ν = about 0.2
Therefore, even if you calculate with the following formula,
You can. E = ρc² In other words, if the density and speed of sound of paper can be measured, it will be easy
The elastic modulus can be obtained. Where the speed of sound is
When measuring, Sonic Tester SST-110
Use various known devices such as Nomura Shoji Co., Ltd.
Can do. The basis weight of the base paper is, for example, 50 to 250 g /
m², Preferably 100 to 180 g / m²Is in the range
It is preferable. Specific examples of the base paper include high-quality paper and examples
For example, Japan Photographic Society, “Basics of Photographic Engineering-Silver Salt Photography”
-”, Corona Co., Ltd. (Showa 54) (223)-(24
0) The paper described on page is a suitable example. Base paper
May be used in plural sheets. In addition, both sides or piece of the base paper
On the surface, the polypropylene resin described later provided on the base paper
For the purpose of improving adhesion to the layer, corona discharge treatment and
Lame (flame) treatment, glow discharge treatment, or plasma treatment
It is preferable to perform activation treatment such as treatment. [0016]Polypropylene resin layer Polypropylene resin that is melt extruded on the surface of the base paper
Ruto flow rate (MFR) is 18-50 g / 10
Min, preferably 25-48 g / 10 min, more preferably
Is suitably 35 to 45 g / 10 min. This
By having an MFR in the range of
Suitable for moldability and heat resistance of laminate during melt extrusion
It becomes. Also, the polypropylene used in the present invention.
The density of the resin is, for example, 0.890 g / cm^ThreeMore
Or 0.900 g / cm^ThreeMore preferably, 0.9
05g / cm^ThreeThe above is appropriate. The density is 0.
890 g / cm^ThreeIf this is the case, the fixing roll will become dirty or blistered.
Are unlikely to occur. Note that the upper limit of density is, for example, practically
Is 0.910 g / cm^ThreeIt will be about. Provided on the base paper
The polypropylene resin layer has a thickness of usually 5 to 50 μm.
m, preferably 10 to 30 μm, for example,
Melt extrusion using the apparatus described in Figure 1 below
Can be formed. Referring to FIG. 1, the electrophotographic receiver of the present invention.
The apparatus for producing the image paper support is along the flow of the base paper 9,
From the upstream side (left side in the figure), the feeding device 1 for the base paper 9 and the guide
Draw rolls 7a, 7b, 7c and a pair of press rolls 6a
And chill roll 6 and guide rolls 8a, 8b, 8c
And a winding device 2. This device is also a guide
For example, a corona treatment device so as to face the roll 7c
3 and a pair of press rolls 6a and chill rolls 6
A melt-extruded polypropylene resin layer is supplied to the
Extruded from the melt extrusion die 5 and further from the melt extrusion die 5
Supply ozone gas to the surface of the molten polypropylene resin layer
And an ozone gas supply device 4. When operating the apparatus shown in FIG.
The base paper 9 supplied from the apparatus 1 is a guide roll 7a, 7
It moves through b and 7c and passes through the guide roll 7c.
At this time, the surface of the base paper 9 is corona treated by the corona treatment device 3.
It is processed. Next, the corona-treated base paper 9 is a pair of
Passes through the nip of the press roll 6a and the chill roll 6.
The On the other hand, the polypropylene resin is obtained from the melt extrusion die 5.
A pair of press rolls 6 are extruded in a melted state.
a and move toward the nip of the chill roll 6,
In the process, the ozone gas supplied from the ozone gas supply device 4
The feed device 1 is fed in the nip direction while being exposed to the
Is fed to the nip together with the base paper 9 fed from
Pressurized while passing through the nip of the chill roll
Polypropylene laminated on the base paper 9 while being conveyed on
The len resin layer is further cooled while being cooled on the chill roll 6.
And move through the guide rolls 8a, 8b, 8c,
A base paper and a polypropylene resin layer bonded to it
The laminated film 10a is wound on the winding device 2
The The corona treatment in the corona treatment device 3 is as follows.
0.010kw / m²Base sheet with output of more than / min
Process the surface. Preferably, the output is between 0.010 and 0.00.
070 kw / m²/ Min, more preferably 0.020-
0.060kw / m²/ Min, particularly preferably 0.02.
5 to 0.055 kw / m²/ Min is appropriate
The By performing corona treatment with an output within this range,
Increased adhesion of polypropylene resin layer to base paper surface
To do. As the corona treatment device 3 used, for example,
HF-802 and HFS-800F manufactured by Kasuga Electric Co., Ltd.
Etc. can be used. The distance between the base paper 9 and the corona treatment device 3
Is usually performed at a distance of about 1 to 2 mm, for example. Co
The degree of Rona treatment also varies depending on the moving speed of the base paper 9.
However, as mentioned above, the corona treatment output is 1 minute
1m²Because it is expressed by the energy per hit, the moving speed
The effects of can be ignored. In this embodiment
In this case, the corona treatment device 3 is used to treat the surface of the base paper.
However, instead of the corona treatment device 3,
Use a laser processing device or a flame (flame) processing device
Can be. As a plasma processing apparatus, for example,
Use a plasma atom made by Nippon Paint Co., Ltd.
You can. Distance between the base paper 9 and the plasma processing apparatus
Is usually performed at a distance of about 5 to 20 mm, for example. As a frame processing apparatus, for example, free
Such as Model F 3000 made by Inburner
The The distance between the base paper 9 and the frame processing device is, for example,
For example, it is usually performed at a distance of about 10 to 25 mm. In addition,
The conveyance speed of the base paper 9 is normally 30 to 30 as the line speed.
200 m / min, preferably about 80 to 120 m / min
Is appropriate. The melt extrusion from the melt extrusion die 5 is carried out by the die 5
As a discharge temperature from 280 to 315 ° C., preferably
290-310 ° C, more preferably 295-30
It is appropriate to carry out at 5 ° C. From the melt extrusion die 5, the base
The distance to contact with the paper 9 is usually 50 to 250 m
m, preferably about 100 to 150 mm is appropriate.
The The extruded polypropylene resin
It is supplied on the base paper 9 in the form of a rum. When contacting the base paper 9
The temperature of the polypropylene resin is, for example, 270 to 310.
℃, preferably 280-300 ℃
is there. Ozo supplied from the ozone gas supply device 4
The concentration of gas is 10-50 g / m^Three, Preferably 20
45g / m^ThreeMore preferably, 30 to 45 g / m^ThreeTo do
Is appropriate. Use ozone concentrations within this range
By means of the surface treatment of the polypropylene resin layer
The paper 9 can be firmly bonded to the processing side surface. Oh
The blast amount of Zon gas is, for example, 0.1 to 10 m.^Three/Time,
Preferably, 0.5-5m^ThreeIt is appropriate to do
The Moreover, ozone gas spraying of the ozone gas supply device 4
The distance from the mouth to the polypropylene resin melt film is, for example,
5 to 150 cm, preferably about 5 to 30 cm
It is appropriate to do. A pair of press rolls 6a and a chill
The nip pressure formed by the roll 6 is usually 2 to 8 MPa.
(20-80kgf / cm²), Preferably 4-5M
Pa (40-50 kgf / cm²)
It is right. Further, the ozone gas of the ozone gas supply device 4
Lowered vertically from the supply port to a molten polypropylene resin film
5c from the polypropylene molten resin film along the imaginary line
The ozone concentration at the position of m is, for example, 0.1 to 50 g /
m^Three, Preferably 10 to 45 g / m^Three, Particularly preferably 2
0 to 45 g / m^ThreeIt is appropriate to be a degree. Chill roll
The surface temperature of 6 is usually 10 to 30 ° C., preferably 1
It is suitable to set it as 0-20 degreeC. Polypropylene
It is preferable to provide the lenic resin layer on both sides of the base paper.
That's right. By providing a polypropylene resin layer on both sides of the base paper
Therefore, since moisture absorption by the base paper can be prevented,
The elongation on both sides of the toner image-receiving layer provided on the support is
It is suppressed uniformly and cracks and curling can be prevented. Provided on the surface of the base paper (toner image-receiving layer side)
The polypropylene resin layer is a mirror surface (glossy surface)
It is preferable. On the other hand, the polyp provided on the back of the base paper
The propylene resin layer is suitably a mat surface.
As the mat surface, for example, the arithmetic average roughness (Ra) is
It is preferably 20 μm or less, more preferably 10 μm or less.
Particularly preferably, it is 8 μm or less. Roughness measurement test
Ra is, for example, 1 to 20 μm, preferably
Is suitably 5 to 10 μm. The polypropylene resin layer is substantially composed of
It is appropriate that no pigment or filler is contained. Temporary
Even if it is included in the polypropylene resin layer
For example, up to 15% by weight is appropriate.
The If pigments are included above this amount,
The len resin layer is easy to stretch due to moisture absorption, making it an electrophotographic image receiving paper.
The polypropylene resin layer and toner on the toner image-receiving layer.
Stress is generated between the toner layer and cracks in the curl and toner layer.
It causes this. Therefore, a range that does not cause such problems.
If it is within the range, it is possible to use a pigment or the like. However
However, it is particularly preferable that no pigment or the like is contained. [0028]Toner image-receiving layer The support of the present invention thus formed has a polyp
A toner image receiving layer is provided on the propylene resin layer. G
The negative image-receiving layer is transferred by (static) electricity, pressure, etc.
Toner that forms an image from a developing drum or intermediate transfer member
A machine that accepts heat and fixes it with heat, pressure, etc. in the fixing process
Have the ability. The toner image-receiving layer used in the present invention is heatable.
Along with plastic resin, it affects the action as a toner image receiving layer.
As long as it is not, various additives can be contained. G
The thickness of the toner image-receiving layer is 1 / (particle diameter of the toner used).
It is suitable that the thickness is 2 or more, preferably 1 to 3 times.
It is right. Further, as a toner image receiving layer, JP-A-5-2.
No. 16322, 7-301939
Thickness is preferred. Specifically, the thickness is, for example,
2-30 micrometers, Preferably 5-15 micrometers is suitable. The toner image receiving layer is one of the following items:
It is preferable to have the physical properties of
Items, most preferably all properties
Is appropriate. (1) Tg (glass transition temperature) of the toner image-receiving layer is 30 ° C.
The toner Tg + 20 ° C. or lower. (2) T1 / 2 (1/2 method softening point) of the toner image-receiving layer is
60-200 ° C, preferably 80-170 ° C. here
The 1/2 method softening point is determined by using a specific device and a specific condition.
The initial set temperature while applying the prescribed extrusion load
(For example, 50 ° C.) Preheating time, for example, after 300 seconds
At each temperature when the temperature is increased at a predetermined constant speed
2 minutes of the difference in piston stroke at the start and end of outflow
It is evaluated at a temperature of 1. (3) Tfb (outflow start temperature) of the toner image receiving layer is 40
˜200 ° C., preferably Tfb of the toner image-receiving layer is
No. Tfb + 50 ° C. or less. (4) The viscosity of the toner image-receiving layer is 1 × 10^FiveTemperature that becomes CP
However, it is 40 ° C. or higher and lower than that of the toner. (5) Storage elastic modulus at fixing temperature of toner image-receiving layer
(G ′) is 1 × 10²~ 1x10^FivePa, loss modulus
(G ″) is 1 × 10²~ 1x10^FivePa. (6) Loss at fixing temperature of toner image receiving layer
It is the ratio of the elastic modulus (G ″) to the storage elastic modulus (G ′)
Loss tangent (G ″ / G ′) is 0.01-10. (7) Storage elastic modulus at fixing temperature of toner image-receiving layer
(G ′) is the storage elastic modulus at the fixing temperature of the toner.
-50 to +2500 for (G "). (8) The inclination angle of the molten toner on the image receiving layer is 50 degrees or less,
Especially 40 degrees or less. As the toner image receiving layer, Japanese Patent No. 2788358 is disclosed.
Description, JP-A-7-248637, 8-305067
No., 10-239889, etc.
Those satisfying these are preferred. The physical properties of (1) above are based on the differential scanning calorimeter.
(DSC). (2) ~
For example, the physical property of (4) is a flow tester manufactured by Shimadzu Corporation.
It can be measured using CFT-500 or 500D.
Yes. The physical properties (5) to (7) are rotational rheometers.
(For example, rheometric dynamic analyzer
-RADII). (8)
For physical properties, use a contact angle measuring device manufactured by Kyowa Interface Chemical Co., Ltd.
Measured by the method disclosed in JP-A-8-334916.
Can be determined. Thermoplastic used in the toner image-receiving layer of the present invention
As a functional resin, it will deform at the fixing temperature and accept the toner.
Anything can be used. Preferably, the toner image receiving layer
The thermoplastic resin used in
It is preferable that the resin is of the same type as the resin used
That's right. Many toners include polyester resin and styrene.
-Acrylic acid ester copolymer, styrene-methacrylic acid
Since a sulfonic acid ester copolymer is used, its
As a thermoplastic resin used in the toner image-receiving layer
Polyester resin or styrene-acrylic ester
Copolymer, styrene-methacrylate copolymer, etc.
It is preferable to use any thermoplastic resin. Examples of such a thermoplastic resin include
For example, the following thermoplastic resins can be exemplified. (A) Polyethylene such as polyethylene resin and polypropylene resin
Olefins such as olefin resin, ethylene and propylene
Copolymer resin of vinyl and other vinyl monomers, acrylic resin
Resin. (B) Those having an ester bond Terephthalic acid, isof
Taric acid, maleic acid, fumaric acid, phthalic acid, adipine
Acid, sebacic acid, azelaic acid, abietic acid, succinic acid
Dicarboxylic acids such as acids, trimellitic acid, pyromellitic acid
Components (these dicarboxylic acid components include sulfonic acid groups,
Ruboxyl group etc. may be substituted) and ethylene group
Recall, diethylene glycol, propylene glycol
Bisphenol A, bisphenol A diether
Derivatives (eg ethylene oxide of bisphenol A)
2 adduct, propylene oxide of bisphenol A
2 adducts), bisphenol S, 2-ethylcyclo
Hexyl dimethanol, neopentyl glycol, chic
Alcohol composition such as rohexyldimethanol and glycerin
(These alcohol components are substituted with hydroxyl groups, etc.
Polyester tree obtained by condensation with
Fat, Polymethyl methacrylate, polybutyl methacrylate
Tacrylate, polymethyl acrylate, polybutyl acrylate
Polyacrylate resin such as acrylate or polymer
Tacrylic acid ester resin, polycarbonate resin, poly
Vinyl acetate resin, styrene acrylate resin, styrene
-Methacrylate copolymer resin, vinyltoluene
Acrylate resin etc. Specifically, JP-A-59-1013
95, 63-7971, 63-7972,
As described in 63-7973 and 60-294862
Can be mentioned. As a commercial product, Toyobo
Byron 290, Byron 200, Byron 28
0, Byron 300, Byron 103, Byron GK-
140, Byron GK-130, Toughton NE made by Kao
-382, Tufton U-5, ATR-2009, ATR
-2010, Unitika Elitel UE3500, U
E3210, XA-8153, manufactured by Nippon Synthetic Chemical
Star TP-220, R-188, etc. can be used. (C) Polyurethane resin and the like. (D) Polyamide resin, urea resin, etc. (E) Polysulfone resin and the like. (F) Polyvinyl chloride resin, polyvinylidene chloride resin,
Vinyl chloride-vinyl acetate copolymer resin, vinyl chloride
Vinyl ropionate copolymer resin. (G) Polyvinyl resins such as polyvinyl butyral,
Cellulose such as chilled cellulose resin and cellulose acetate resin
Resin etc. (H) Polycaprolactone resin, styrene-maleic anhydride
Acid resin, polyacrylonitrile resin, polyether resin
Fat, epoxy resin, phenol resin, etc. Thermoplastic resins may be used alone or these
It may be used as a mixture of thermoplastic resins. like this
New thermoplastic resins are passed through based on the mass of the toner image-receiving layer.
Usually, 20% by mass or more, preferably 30 to 100% by mass
It is suitable to be blended. A thermoplastic resin used in the toner image-receiving layer;
For example, Japanese Patent Publication No. 5-127413 and 8-1943
No. 94, No. 8-334915, No. 8-334916
No., No. 9-171265, No. 10-221877
Those satisfying the physical properties disclosed in publications are preferred.
Used frequently. The heat resistance used in the toner image-receiving layer of the present invention.
As the plastic resin, the image receiving layer described above is formed with the image receiving layer formed.
Those satisfying the layer properties are preferred. More preferably,
Even with resin alone, the above-mentioned toner image-receiving layer satisfies preferable physical properties.
Something to add. In addition, the above-mentioned trees with different physical properties
Two or more fats can be used in combination. A thermoplastic resin used in the toner image-receiving layer;
The molecular weight of the thermoplastic resin used in the toner
Those larger than those are preferably used. However, molecular weight
Is a thermoplastic used in toner resin and toner image-receiving layer
Depending on the thermodynamic properties of the resin,
The molecular weight relationship is not preferred. For example, Tona
-The thermoplastic resin used in the toner image-receiving layer from resin.
When the softening temperature of fat is high, the molecular weight is the same or the toner image
It may be preferable for the thermoplastic layer to be smaller.
The As a thermoplastic resin used in the toner image-receiving layer, the same
Use a mixture of resins with different average molecular weights of one composition
It is also preferable. In addition, the thermoplastic used in the toner
The relationship with the molecular weight of the conductive resin is disclosed in JP-A-8-334915
The relationship disclosed in the publication is preferred. Toner image receiving layer
The molecular weight distribution of the thermoplastic resin used is used for the toner.
Wider than the molecular weight distribution of thermoplastic resins
Good. Thermoplastic resin used for toner image-receiving layer
May be water-soluble. Water-soluble thermoplastic resin
As long as it is water-soluble, its composition, bonding structure,
Child structure, molecular weight, molecular weight distribution, morphology, etc. are not particularly limited
Yes. In order to make the thermoplastic resin water-soluble, for example, heat
The plastic resin must have a water-solubilizing group.
Examples of water solubilizing groups include, for example, hydroxyl groups and carbohydrates.
Acid group, amino group, amide group, ether group, etc.
The Examples of water-soluble thermoplastic resins include Research D
Closure 17, 643, p. 26, 18, 716
651 pages, 307,105 pages 873-874 and
And JP-A-64-13546, pages 71 to 75
What has been described. Specifically, water soluble heat
Examples of the plastic resin include vinyl pyrrolidone-vinyl acetate.
Nyl copolymer and styrene-vinylpyrrolidone copolymer
, Styrene-maleic anhydride copolymer, water-soluble polymer
Stealth, water-soluble polyurethane, water-soluble nylon, water-soluble
An epoxy resin or the like can be used. The toner image-receiving layer is made of a thermoplastic resin that is not water-soluble.
For fats, for example, in water dispersion,
Can be prepared by coating on the resin layer
it can. As aqueous dispersion, acrylic resin emulsion
, Polyvinyl acetate emulsion, SBR (styrene
Butadiene rubber) emulsion, polyester resin
Maruchon, polystyrene resin emulsion, urethane
Two or more combinations selected appropriately from resin emulsions, etc.
It can also be made. In the case of gelatin, depending on the purpose
Lime-processed gelatin, acid-processed gelatin, calcium, etc.
Can be selected from so-called demineralized gelatin with a reduced content of
The The toner binder is a polyester resin.
In some cases, polyester as a resin for the toner image-receiving layer
Resins are preferred. As a commercially available polyester resin,
For example, Toyobo's Byron 290, Byron 200,
Byron 280, Byron 300, Byron 103, Bar
Iron GK-140, Byron GK-130, made by Kao
Tufton NE-382, Tufton U-5, ATR-20
09, ATR-2010, Elitel UE made by Unitika
3500, UE3210, XA-8153, Nippon Gosei
Examples include Polyester TP-220, R-188, etc.
As an acrylic resin, the commercial name is Mitsubishi
Rayon Co., Ltd. Dialnal SE-5437, SE-
5102, SE-5377, SE-5649, SE-5
466, SE-5482, HR-169, 124, HR
-1127, HR-116, HR-113, HR-14
8, HR-131, HR-470, HR-634, HR
-606, HR-607, LR-1065, 574, 1
43, 396, 637, 162, 469, 216, BR
-50, BR-52, BR-60, BR-64, BR-73, B
R-75, BR-77, BR-79, BR-80, BR
-83, BR-85, BR-87, BR-88, BR-
90, BR-93, BR-95, BR-100, BR-
101, BR-102, BR-105, BR-106,
BR-107, BR-108, BR-112, BR-1
13, BR-115, BR-116, BR-117, product
ESREC P SE-0020, SE-0
040, SE-0070, SE-0100, SE-10
10, SE-1035, Sanyo Chemical Industries Himer ST9
5, ST120, Mitsui Chemicals FM601 etc. can be used
The Examples of commercially available polyester emulsions include
For example, Toyobo's Bironal MD-1250, MD-19
30 and Plus Coat Z-446, Z-46
5, RZ-96, Dai-Ni Ink ES-611, ES-
670, Takamatsu Yushi-made pesresin A-160P, A-21
0, A-515GB, A-620 and the like are preferable.
The The film formation temperature of the thermoplastic resin is suitable for storage before printing.
Therefore, it is preferable that the temperature is higher than room temperature.
Is preferably 100 ° C. or lower. For the toner image-receiving layer, in addition to the above thermoplastic resin.
In order to improve the thermodynamic properties of the toner image-receiving layer
The additive can be oriented. As such an additive
For example, plasticizers, slip agents or mold release agents, fillers
-, Crosslinking agents, emulsions, dispersions and the like. Plasticizer
As a plasticizer for a known resin, there is no particular limitation.
Can be. Plasticizers are used to heat and fix the toner.
And / or pressure causes the toner image-receiving layer to flow or soften
It has a function to adjust the performance. As a plasticizer,
"Science Handbook" (Chemical Society of Japan, Maruzen) and "Plasticizer-Its Reasons"
Theory and Application- "(Kouichi Murai, Koshobo)," Plasticizer Research
Research "" Under the study of plasticizers "(edited by Polymer Chemistry Association)
"Handbook Rubber and plastic compounding chemicals" (Rubber Daige
Est), etc.) can be selected as a reference. Plasticizers include high-boiling organic solvents and thermal solvents.
For example, Japanese Patent Laid-Open No. Sho 59
-83154, 59-178451, 59-1.
78453, 59-178454, 59-17
8455, 59-178457, 62-174
No. 754, No. 62-245253, No. 61-2094
44, 61-200538, 62-8145
, 62-9348, 62-30247, 6
2-136646, 62-174754, 62
-245253, 61-209444, 61-
No. 201058, No. 62-8145, No. 62-934
8, No. 62-30247, No. 62-136646
No., JP-A-2-235694, etc.
Esters such as phthalates,
Acid esters, fatty acid esters, abietic acid ester
Tells, adipic acid esters, sebacic acid esters
, Azelaic acid esters, Benzoic acid esters, butyric acid esters, e
Poxylated fatty acid esters, glycolic acid esters,
Propionic acid esters, trimellitic acid esters,
Citric acid esters, sulfonic acid esters, carvone
Acid esters, succinic acid esters, maleic acid ester
, Fumaric acid esters, phthalic acid esters,
Acrylates), amides (eg fatty acids)
Amides, sulfoamides, etc.), ethers, alcohol
Compounds such as polyols, lactones, and polyethyleneoxy
Things. The plasticizer should be mixed with the resin.
You can. As a plasticizer, a relatively low molecular weight polymer is used.
Rimmer can be used. In this case, as molecular weight
Is lower than the molecular weight of the binder resin to be plasticized
Preferably, molecular weight of 15000 or less, preferably
Is suitably 5000 or less. Also poly
In the case of a mer plasticizer, the binder resin to be plasticized and
The same kind of polymer is preferable. For example, Polye
Low molecular weight polyesters are preferred for plasticizing stealth resins.
Good. In addition, oligomers can be used as plasticizers.
Yes. Other than the compounds listed above, examples of commercial products
Asahi Denka Kogyo Adeka Sizer PN-170, PN-
1430, C.I. P. HALL product PARAPLEX
-G-25, G-30, G-40, manufactured by Rika Hercules
Product ester gum 8L-JA, ester R-95, penta
Lin 4851, FK115, 4820, 830, Louiso
28-JA, Picolastic A75, Picotex
LC, Crystallex 3085, etc.
The The plasticizer has toner particles embedded in the toner image receiving layer.
Stress and strain (such as elastic force and viscosity)
Physical distortion, molecule or binder main chain or pendant part
Voluntarily to alleviate distortion due to material balance etc.)
Can be used. The plasticizer is contained in the toner image-receiving layer.
It may be in a micro-dispersed state or a sea island shape.
The phase may be separated into black, or other binders, etc.
It may be in a state sufficiently mixed and dissolved with the components. The plasticizer
Based on the mass of the negative image receiving layer, for example, 0.001-9
0% by weight, preferably 0.1-60% by weight, particularly preferred
Or it is preferable to mix | blend by 1-40 mass%. Ma
In addition, plasticizers have a smoothness
Adjustment) and fixing unit offset (toner to fixing unit and
Layer peeling), curl balance adjustment, charge adjustment
It may be used for purposes such as (formation of electrostatic toner image). Sliding that can be used in the toner image-receiving layer
The agent or mold release agent is used for fixing heat when the electrophotographic image receiving paper is fixed.
It is added for the purpose of avoiding adhesion to members.
The In particular, the toner image-receiving layer is at a fixing temperature with the fixing member.
180 degree peel strength is 0.1 N / 25 mm or less,
Preferably, it is 0.041 N / 25 mm or less
Is appropriate. 180 degree peel strength is the surface material of the fixing member
And measured according to the method described in JIS K6887.
Can be determined. Sliding agent used for toner image-receiving layer
Alternatively, as the release agent, for example, higher alkyl sulfate sodium
Um, higher fatty acid higher alcohol esters, carbow
, Higher alkyl phosphate ester, silicone compound
Products, modified silicones, curable silicones, and the like.
Polyolefin wax, fluorine oil, fluorine
Wax, carnauba wax, microcrystalline wax
And silane compounds are also preferably used. For slip agents or mold release agents that can be used
U.S. Pat. Nos. 2,882,157 and 3,210,060.
No. 3850640, French patent 2180465
No., British Patent No. 955061, No. 1143118, No. 1
1263722, 1270578, 13205
No. 64, No. 1320757, No. 2588765, No.
No. 2739891, No. 3018178, No. 30425
No. 22, No. 3080317, No. 3082087, No.
3121060, 3222178, 32959
79, 3479567, 3516832,
3658573, 3679411, 38705
No. 21 specification, JP-A-49-5017, 51-
141623, 54-159221, 56-8
Publication No. 1841 and Research Disclosure
-(Research Disclosure) 13969
The The amount of slip agent or mold release agent used is 5 to 500.
mg / m², Preferably 10 to 200 mg / m²Is
Is appropriate. Offset to fixing member at fixing section
So-called oil level is not used.
The preferred amount of slip agent or mold release agent for fixing is for example
30-3000 mg / m², Preferably 100-
1500mg / m²It is. Wax-based slip agent or release agent
Prepare water dispersion because the form is difficult to dissolve in organic solvents
And prepare a dispersion with a thermoplastic resin solution and apply it.
Is preferred. In this case, wax-based slip agent or mold release
The agent is present in the form of fine particles in the thermoplastic resin. This place
The amount of slip agent used is 5 to 10000 mg / m²Good
Preferably, 50-5000mg / m²It is. Slip agent
Examples of mold release agents include silicon compounds and fluoride.
Examples thereof include elemental compounds and waxes. As a slipping agent or mold release agent, it is generally a good idea.
Shobo “Revised Properties and Applications of Wax” and Nikkan Kogyo Shimbun
Use the compounds described in the Silicone Handbook issued by the company
be able to. In addition, Japanese Patent Publication No.59-38581
Hei 4-32380, Tohoku No. 2838498, 29
49558, JP-A-50-117433, 52-
52640, 57-148755, 61-62
056, 61-62057, 61-11876
0, JP-A-2-42451, 3-41465,
4-212175, 4-214570, 4-
263267, 5-34966, 5-1195
14, 6-59502, 6-161150,
6-175396, 6-219040, No. 6-230600, No. 6-29509
No. 3, No. 7-36210, No. 7-43940, No. 7
-56387, 7-56390, 7-6433
No. 5, No. 7-199681, No. 7-223362,
7-287413, 8-1844992, 8-
Nos. 227180, 8-248671, 8-248
799, 8-248801, 8-278663
No., 9-152739, 9-160278,
9-185181, 9-319139, 9-3
19143, 10-20549, 10-488
89, 10-198069, 10-20711
No. 6, No. 11-2917, No. 11-44969, No.
11-65156, 11-73049, 11-
Used in the toner described in each publication of 194542
Silicon compounds, fluorine compounds, waxes, etc. are suitable
Used for. Also, multiple combinations of these compounds can be used.
It can also be used. Specifically, as the silicon compound,
For example, unmodified silicone oil
(Specifically, dimethylsiloxane oil, methyl
Hydrogenated Con Oil, Phenyl Methyl Sil
Corn oil, KF-9 manufactured by Shin-Etsu Chemical Co., Ltd.
6, KF-96L, KF-96H, KF-99, KF-
50, KF-54, KF-56, KF-965, KF-
968, KF-994, KF-995, HIVAC F
-4, F-5, Toray Dow Corning Silicone S
H200, SH203, SH490, SH510, SH
550, SH710, SH704, SH705, SH7
028A, SH7036, SM7060, SM700
1, SM7706, SH7036, SH8710, SH
1107, SH8627, and the like. Fluorine compounds include, for example, fluorine
Il (Daikin Industries' #Daifloil # 1,
# 3, # 10, # 20, # 50, # 100, Unidyne
TG-440, TG-452, TG-490, TG-5
60, TG-561, TG-590, TG-652, T
G-670U, TG-991, TG-999, TG-3
010, TG-3020, TG-3510, Tokemupu
Rodaktsu MF-100, MF-110, MF-12
0, MF-130, MF-160, MF-160E, Asahi
Glass Surflon S-111, S-112, S-11
3, S-121, S-131, S-132, S-14
1, S-145, FC-430 manufactured by Mitsui Fluorochemicals,
FC-431 etc.), fluoro rubber (Toray
Dow Corning Silicone LS63U, etc.), foot
Elementally modified resin (Nippon Yushi Modiper F20 as a commercial product)
0, F220, F600, F2020, F3035, large
Nissei Kagaku Diaromar FF203, FF204, etc.
I can get lost. As the wax, for example, petroleum wax
Paraffin wax as a commercial product
Raffin wax 155, 150, 140, 135, 1
30, 125, 120, 115, HNP-3, HNP-
5, HNP-9, HNP-10, HNP-11, HNP
-12, HNP-14G, SP-0160, SP-01
45, SP-1040, SP-1035, SP-304
0, SP-3035, NPS-8070, NPS-L-
70, OX-2151, OX-2251, EMUSTA
R-0384, EMUSTAR-0136, made by Chukyo Yushi
Cellozol 686, 428, 651-A, A, H-80
3, B-460, E-172, 866, K-133, C
Idlin D-337, E-139, Nisseki Mitsubishi Oil 12
5 ° paraffin, 125 ° FD, 130 ° paraffin,
135 ° paraffin, 135 ° H, 140 ° paraffin
140 ° N, 145 ° paraffin, paraffin wax
And the like. Toner image receiving layer
As optional slip agent or mold release agent, these
Derivatives, oxides, purified products and mixtures can also be used
The In addition, these may have a reactive substituent.
Yes. The slip agent or mold release agent used depends on the quality of the toner image-receiving layer.
Based on the amount, for example, 0.1-10% by mass, preferred
Or 0.3 to 8.0% by mass, particularly preferably 0.5
It is appropriate to set it to -5.0 mass%. Organic or optionally added to the toner image-receiving layer
As inorganic filler, reinforcing agent for binder resin
And well-known fillers and reinforcing materials can be used.
Yes. As filler, "Handbook rubber / plastic
"Combination chemicals" (edited by Rubber Digest), "New edition plastic"
"Stick compounding agents: basics and applications" (Taiseisha), "Fillers
Select by referring to "Handbook" (Taisei)
Can do. Moreover, as a filler, various inorganic fillers
(Or pigment) can be used. As an inorganic pigment
For example, silica, alumina, titanium dioxide, oxide suboxide
Lead, zirconium oxide, mica-like iron oxide, white lead, lead oxide,
Cobalt oxide, strontium chromate, molybdenum
Pigment, smectite, magnesium oxide, calcium oxide
Um, calcium carbonate, mullite and the like. Phi
In particular, silica and alumina are preferred as the filler.
Two or more kinds of fillers may be used in combination. As filler
In particular, those having a small particle size are preferred. If the particle size is large,
The surface of the toner image receiving layer tends to be roughened. Silica includes spherical silica and amorphous silica.
included. Silica is a dry method, wet method or airgel method
Can be synthesized. Trim the surface of the hydrophobic silica particles.
You may surface-treat with a silyl silyl group or silicone. Shi
As the liquid, colloidal silica is preferable. Silica
The average particle size is, for example, 4 to 120 nm, preferably 4
Appropriately it is ˜90 nm. Silica is porous
It is preferable that The average pore diameter of the porous silica is 5
0 to 500 nm is preferable. The mass of porous silica
The average pore volume per unit is preferably 0.5 to 3 ml / g, for example.
Good. For alumina, anhydrous alumina and alumina water
Japanese products are included. As the crystal form of anhydrous alumina, α,
Use β, γ, δ, ζ, η, θ, κ, ρ, or χ
it can. Alumina hydrate is preferred over anhydrous alumina
That's right. As alumina hydrate, monohydrate or trihydrate
Can be used. Monohydrate includes pseudo boehmite,
-Includes mites and diaspores. Trihydrate includes
Includes jibsite and bayerite. Alumina flat
The average particle diameter is, for example, 4 to 300 nm, preferably 4 to
It is appropriate that the thickness is 200 nm. Alumina is porous
It is preferable that it is quality. Average pore diameter of porous alumina
Is suitably, for example, 50 to 500 nm.
The The average pore volume per mass of porous alumina is, for example,
For example, 0.3 to 3 ml / g is preferable. Alumina hydrate is converted into an aluminum salt solution.
Sol-gel method or alumina with precipitation by adding ammonia
It can be synthesized by a method of hydrolyzing an acid alkali. anhydrous
For alumina, dehydrate the alumina hydrate by heating.
Can be obtained at Filler is added to the layer of the binder
5 to 2000% by weight based on the dry weight of the
It is preferable. The toner image receiving layer has toner transfer and adhesion.
Etc. or to prevent electrostatic adhesion of the toner image-receiving layer
Therefore, it is preferable to contain a charge adjusting agent. Electrification
As the preparation, various conventionally known charge control agents are used.
Can be. Examples of such charge control agents include
For example, cationic surfactants, anionic surfactants,
Surfactants, surfactants such as nonionic surfactants, etc.
In addition, polymer electrolytes, conductive metal oxides, etc. can be used
The For example, quaternary ammonium salts and polyamine derivatives
Body, cation-modified polymethyl methacrylate, cation
Cationic antistatic agent such as modified polystyrene, alkyl
Anionic charging such as phosphate and anionic polymer
Inhibitor, fatty acid ester, polyethylene oxide, etc.
Nonionic antistatic agents are included, but are not limited to these.
Is not something When the toner has a negative charge, the toner image is received.
Examples of the charge control agent blended in the layer include a cation.
And nonionic are preferred. Examples of conductive metal oxides
For example, ZnO, TiO₂ , SnO₂, Al₂O _Three In₂
O_Three , SiO₂, MgO, BaO, MoO_ThreeEtc.
be able to. These conductive metal oxides are used alone.
These composite oxides may be used.
The metal oxide may further contain a different element.
For example, for ZnO, Al, In, etc., TiO₂
 Nb, Ta, etc., SnO₂For Sb, N
b, containing a halogen element (doping)
it can. The toner image-receiving layer is 1 × 10⁶ ~ 1x10¹⁵
Surface electric resistance within the range of 25 ° C and 65% RH
It is preferable to have resistance. 1 × 10⁶ When less than Ω
Is the amount of toner when the toner is transferred to the toner image-receiving layer.
It is not sufficient, and the density of the resulting toner image tends to be low
Yes. On the other hand, the surface electrical resistance is 1 × 10¹⁵When exceeding Ω
Causes more charge than necessary during transfer, and toner is sufficient
The image density is low and the electrophotographic receiving paper
Static electricity is easily deposited during handling, and dust is likely to adhere.
Misfeed, double feed, discharge mark, toner transfer toner
This is not preferable because cracks and the like are likely to occur. Optimum surface electrical resistance of the transparent toner image-receiving layer
Range is 10^Ten-10¹³Ω / cm², Preferably 5x
10^Ten~ 5x10¹²Ω / cm²The use of antistatic agents
Dosage is such that the surface electrical resistance value falls within this range.
If it is. The opposite side of the support from the toner image-receiving layer
The surface electrical resistance of the surface is 5 × 10 8 to 3.2 × 10^TenΩ /
cm², Preferably 1 × 10⁹ ~ 1x10^TenΩ / cm²
Is suitable. The surface electrical resistance is measured according to JIS K 6
911, the temperature of the sample is 20 ° C and the humidity is 65%
Humidity for more than 8 hours in the environment, Advante in the same environment
Using an R8340 manufactured by Stroke Corporation, an applied voltage of 100V
Obtained by measuring after 1 minute has passed
It is done. The toner image receiving layer has improved image quality, particularly whiteness.
For the purpose of good, fluorescent brighteners, white pigments, colored pigments, dyes
Fees can be used. Fluorescent whitening agent
A compound that has absorption and emits fluorescence at 400 to 500 nm
Any known fluorescent whitening agent can be used without any particular limitation.
Can do. Examples of the optical brightener include K.I. VeenRata
The edition of "The Chemistryof Sy"
nthetic Dies ”, Vol. V, Chapter 8
Preferred examples include compounds. Specifically,
Ruben compounds, coumarin compounds, biphenyl compounds
Compound, benzoxazoline compound, naphthalimide compound
Compounds, pyrazoline compounds, carbostyril compounds
Etc. For example,
Wightful Fur PSN, PHR, HCS, PCS,
B, UVITEX-OB manufactured by Ciba-Geigy, etc.
Is mentioned. As the white pigment, as described in the filler section.
Use inorganic pigments (titanium oxide, calcium carbonate, etc.)
You can. As colored pigments, JP-A 63-44653
Various pigments and azo pigments described in
Carmine 6B, Red 2B, insoluble azo; Monoazo
Yellow, disazo yellow, pyrazolo orange, balkan
Orange, condensed azo type; Chromophthalier, Kromov
Tarred), polycyclic pigment (phthalocyanine series; copper lid)
Russian Nine Blue, Copper Phthalocyanine Green, Shioki
Sazines; dioxazine violet, isoindolino
Isoindolinone yellow, selenium; perylene,
Perinone, flavantron, thioindigo, lake pigment
(Malachite Green, Rhodamine B, Rhodamine G,
Victoria Blue B) and inorganic pigments (oxides, titanium dioxide)
, Bengara, sulfate; precipitated barium sulfate, carbonate;
Precipitated calcium carbonate, oxalate; hydrous silicate, anhydrous succinic acid
Salt, metal powder; aluminum powder, bronze powder, zinc powder, potassium
-Bon black, yellow lead, bitumen and the like. As the dye, various known dyes are used.
be able to. As an oil-soluble dye, anthraquinone
Compound, azo compound and the like can be mentioned. Of water-insoluble dyes
As a specific example, C.I. I. Vat violet 1,
C. I. Vat violet 2, C.I. I. Vatva
Iolette 9, C.I. I. Vat violet 13,
C. I. Vat violet 21, C.I. I. Vat
Lou 1, C.I. I. Vat Blue 3, C.I. I. Vat Bull
-4, C.I. I. Vat Blue 6, C.I. I. Vat blue
14, C.I. I. Vat Blue 20, C.I. I. Vat Bull
Vat dyes such as -35, C.I. I. Disperse Viole
1, C.I. I. Disperse Violet 4, C.I.
I. Disperse Violet 10, C.I. I. This
Pars Blue 3, C.I. I. Disperse Blue 7, C.I.
I. Disperse dyes such as Disperse Blue 58, C.I. I. Seo
Luvent Violet 13, C.I. I. Solventva
Iolette 14, C.I. I. Solvent Violet 2
1, C.I. I. Solvent Violet 27, C.I. I.
Solvent Blue 11, C.I. I. Solvent Blue 1
2, C.I. I. Solvent Blue 25, C.I. I. Sorben
There are oil-soluble dyes such as Toblue 55. In addition, the color used in silver salt photography.
Couplers can also be preferably used. Toner image-receiving layer
Is preferably higher in whiteness. CIE as whiteness
  In the 1976 (L * a * b *) color space, the L * value is
It is preferably 80 or more, more preferably 85 or more
Furthermore, it is more preferably 90 or more. Also, white color
Is preferably as neutral as possible. White
The color is (a *) 2 in the L * a * b * space.
The value of + (b *) 2 is preferably 50 or less, more preferably
Or 18 or less, more preferably 5 or less. Also,
The toner image receiving layer preferably has high gloss. Glossiness and
From white without toner to black at the maximum density
In the region, the 45 degree glossiness is preferably 60 or more.
More preferably, more preferably 75 or more, more preferably
90 or more. However, the glossiness must be 110 or less.
Are preferred. When it exceeds 110, it becomes like metallic luster.
It is not preferable as image quality. Glossiness is based on JIS Z 8741
Can be measured. Also, the toner image receiving layer is smooth
Higher properties are preferred. As smoothness, there is no toner
In all areas from white to the maximum density black,
The average roughness (Ra) is preferably 3 μm or less, more preferably
Is 1 μm or less, more preferably 0.5 μm or less.
The Arithmetic mean roughness is JIS B 0601, B 06
51, B 0652. In the toner image receiving layer, the stability of the output image is improved.
Various antioxidants to improve the stability of the image receiving layer itself.
Stopper, anti-aging agent, anti-degradation agent, anti-ozone degradation agent,
Contains UV absorbers, light stabilizers, preservatives, fungicides, etc.
May be. Examples of antioxidants include chromanization.
Compounds, coumaran compounds, phenolic compounds (eg
Dard phenol), hydroquinone derivatives, hinders
Doamine derivatives and spiroindane compounds are included. Ma
Further, as an antioxidant, JP-A 61-159644 is known.
Use various antioxidants described in the gazette
Can do. Examples of the antiaging agent include “Handbook”.
  Rubber and plastic compounding chemical revision 2nd edition "(1993,
Rubber Digest Co., Ltd.)
Can be mentioned. Examples of the ultraviolet absorber include benzoto
Riazole compounds (US Pat. No. 3,533,794)
) And 4-thiazolidone compounds (US Pat. No. 33526)
81), benzophenone compounds (Japanese Patent Laid-Open No. 4)
6-2784) and ultraviolet absorbing polymers (special
No. 62-260152). Money
As the genus complex, for example, US Pat. No. 4,241,155
And each specification of 42445018 and 4254195
, JP-A-61-88256, 62-174471.
No. 63-199248, JP-A-1-75568
No. 1-74272, etc.
It is. In addition, "Handbook rubber and plastic compounding chemicals
Revised 2nd edition "(1993, Rubber Digest, Inc.) p122
~ 137 UV absorbers and light stabilizers are also preferably used
I can. Further, the toner image-receiving layer has other photographic additives.
Various known additives can be used. example
For example, as a photographic additive, research disclosure
Magazine (hereinafter abbreviated as RD) No. 17643 (1978)
December), No. 18716 (November 1979) and
No. 307105 (November 1989)
The relevant parts are summarized below. Type of additive RD17643 RD18716 RD30710 1. Brightener 24 pages 648 pages right column 868 pages 2. Stabilizer Pages 24-25 Pages 649 Right column Pages 868-870 3. Light Absorber Page 25-26 Page 649 Right column Page 873     UV absorber 4). Dye image stabilizer page 25 page 650 right column page 872 5). Hardener 26 pages 651 pages left column 874-875 pages 6). Binder 26 pages 651 pages left column 873-874 pages 7). Plasticizer / lubricant page 27 page 650 right column page 876 8). Application aid 26-27 pages 650 page right column 875-876 pages     Surfactant 9. Antistatic agent page 27 page 650 right column pages 876-877 [0071]Protective layer In addition to the toner image-receiving layer, the support of the present invention includes conventional ones.
Various types used to manufacture electrophotographic image receiving paper
These layers can be optionally provided. For example, surface protection
Protection, improvement of storage stability, improvement of handleability, imparting writability,
Purposes such as improving the machine passability and imparting anti-offset properties
Thus, a protective layer can be provided on the surface of the toner image-receiving layer.
The The protective layer may be a single layer or two or more layers.
It may be. Each protective layer has a binder
Various thermoplastic resins, thermosetting resins, etc. can be used
The Preferably, the same type as the toner image-receiving layer is used.
The However, the thermodynamic characteristics, electrostatic characteristics, etc.
Do not have to be the same as the layers, each can be optimized
it can. The protective layer may be used in a toner image receiving layer.
Various additives as described above can be blended
The In particular, the protective layer includes, for example, a plasticizer, a release agent, a slippery
An agent or the like can be blended. Table of electrophotographic image receiving paper
Face layer (for example, if a surface protective layer is used,
(Surface protective layer etc.) have good compatibility with the toner.
It is preferable from the viewpoint of fixability. Specifically, the molten toner
The contact angle with-is preferably 0 to 40 degrees, for example.
That's right. [0073]Back layer Polypropylene optionally provided on the back surface of the support of the present invention
The resin layer can be given back side output suitability or
Improve the quality, improve the curl balance,
Provide a back layer for the purpose of improving
You can. Also, place an image on the back of the electrophotographic image-receiving paper.
In order to improve the double-sided output suitability, the back layer configuration
It may be the same as that on the toner image-receiving layer side. Back layer
The various additives described in relation to the toner image-receiving layer
An agent can be used. As such additives, belts
It is appropriate to blend an electric regulator or the like. The back layer is
It may consist of one layer or more than two layers
Also good. Also, to prevent offset during fixing, the fixing roller
Back layer when using releasable oil
May be oil-absorbing. [0074]Any other layer Furthermore, adhesion between the polypropylene resin layer and the toner image receiving layer
For the purpose of improving the property, an adhesion improving layer may be provided. Adhesion
In the improved layer, various additives described above are blended.
You can. It is particularly preferable to use a crosslinking agent. Also,
For electrophotographic image receiving paper, the toner acceptability is improved.
Therefore, a cushion is provided between the adhesion improving layer and the toner image receiving layer.
A layer can be provided. Furthermore, the electrophotographic image receiving paper is
An intermediate layer can be provided in addition to the various layers described above. example
For example, the intermediate layer is composed of a polypropylene resin layer and an adhesion improving layer.
Or between the adhesion improving layer and the cushion layer, the cushion layer
Between the toner image receiving layer and the toner image receiving layer;
It can arrange | position between. Of course, the base paper and
From a propylene resin layer, a toner image receiving layer, and an intermediate layer
In the case of the electrophotographic image receiving paper, the intermediate layer is, for example,
It exists between the polypropylene resin layer and the toner image receiving layer.
Can be. [0075]Color electrophotographic toner Electrophotographic image-receiving paper formed using the support of the present invention
Is combined with toner or toner particles during printing or copying
Used. The toner used in the present invention is a pulverized toner.
-Or by suspension granulation method
Yes. In the case of pulverized toner, kneading, pulverization and classification
Manufactured. Binder resin used in the production of pulverized toner
For example, acrylic acid, methacrylic acid, male
Acids such as acids and their esters; Polyesters; Poly
Sulfonate; polyether; polyurethane, etc.
Two kinds of resins obtained by polymerizing the body or their monomers
Resins obtained by copolymerization as described above can be used. This
These resins contain wax components and other toner components.
Heat rolls, kneaders, and extruders with composite materials
After kneading thoroughly with a thermal kneader, etc.
Manufactured. Toner obtained by such a grinding method
Is 0.1% of the wax component based on the weight of the toner.
-10 wt%, preferably in the range 0.5-7 wt%
It is suitable to contain. In the case of a suspension granulation toner, a binder is used.
And colorants, release agents (magnetic materials, charge control agents as necessary
And other additives) in a solvent that is incompatible with water
And the resulting composition is a polymer having a carboxyl group.
Coat, then BET specific surface area 10-50m²/ G
Water-based in the presence of hydrophilic inorganic dispersant and / or viscosity modifier
Disperse in a medium and, if necessary, obtain a suspension
After dilution with medium, the resulting suspension is heated and / or
Produces toner by removing the solvent under reduced pressure
Is. In the present invention, these suspension structures are particularly preferred.
It is preferable to use a toner prepared by a particle method, and a pulverized toner
More favorable results may be obtained. The binder used for the suspension granulation toner is:
All known binder resins can be used. concrete
These include styrene, styrenes such as chlorostyrene,
Monoo such as Tylene, Propylene, Butylene, Isoprene
Refines, vinyl acetate, vinyl propionate, benzoic acid
Vinyl esters, vinyl esters such as vinyl butyrate, acrylic
Methyl acetate, ethyl acrylate, butyl acrylate,
Dodecyl rillate, octyl acrylate, acrylate
Nyl, methyl methacrylate, ethyl methacrylate, meta
Α-methyle such as butyl crylate and dodecyl methacrylate
Aliphatic monocarboxylic acid esters, vinyl methyl ether
Tellurium, vinyl ethyl ether, Vinyl ethers such as vinyl butyl ether
, Vinyl methyl ketone, vinyl hexyl ketone, vinyl
Single vinyl ketones such as ruisopropenyl ketone
A polymer and a copolymer can be illustrated. Especially representative
Typical binder resins include polystyrene resin and polyester.
Resin, styrene-alkyl acrylate copolymer, steel
Len-alkyl methacrylate copolymer, styrene-acrylic copolymer
Lilonitrile copolymer, styrene-butadiene copolymer
, Styrene-maleic anhydride copolymer, polyethylene
Examples thereof include resins and polypropylene resins. More
Polyurethane resin, epoxy resin, silicone resin
Fat, polyamide resin, modified rosin, paraffin, wax
Boxes can be listed. Among these resins
However, styrene-acrylic resins are particularly preferred for the present invention.
Good. As a colorant to be contained in the toner binder
Use whatever is known.
Can do. For example, carbon black or aniline bull
ー, Calcole Blue, Chrome Yellow, Ultra Mari
Blue, DuPont oil red, quinoline yellow,
Methylene blue chloride, phthalocyanine blue, mala
Kite Green Oxalate, Lamp Black, Rose
Bengal, C.I. I. Pigment red 48: 1, C.I.
I. Pigment red 122, C.I. I. Pigment
Red 57: 1, C.I. I. Pigment yellow 97,
C. I. Pigment yellow 12, C.I. I. Pigmen
Yellow 17, C.I. I. Pigment Blue 15:
1, C.I. I. Pigment Blue 15: 3
It can be illustrated as. Colorant content is an example
For example, 2 to 8% by mass is appropriate. Colorant
When the content is less than 2% by mass, the coloring power becomes weak.
If the amount exceeds 8% by mass, the transparency of the color toner is poor.
Turn into. The toner preferably contains a release agent.
Good. For example, wax is preferably used as the release agent.
Specifically, polyethylene, polypropylene, etc.
Low molecular weight polyolefins such as len and polybutene;
Silicone resin softened by heat, oleic acid amide,
Erucamide, ricinoleamide, stearic acid
Mido fatty acid amides; carnauba wax, rice
Wax, candelilla wax, wood wax, jojoba oil, etc.
Plant waxes; animal waxes such as beeswax
Kinds: Montan wax, ozokerite, ceresin, para
Fin wax, microcrystalline wax, fi
Mineral and petroleum-based wack such as Schertropsch wax
And modified products thereof can be used. This
These mold release agents are generally carnauba wax or candees.
Contains a highly polar wax ester such as lira wax
If wax is used, the wax on the toner particle surface
On the contrary, polyethylene wax
Wack with a low polarity like paraffin or paraffin wax
The amount of exposure to the surface tends to decrease. Regardless of the exposure tendency to the surface,
Cus has a melting point in the range of 30-150 ° C.
More preferably, the temperature is in the range of 40 to 140 ° C. Main departure
The toner used in the light contains the above colorant and binder.
Although constituted as a main component, the average particle size is 3-15.
μm, especially 4-8 μm, is preferably used
The Further, the storage elastic modulus of the toner itself at 150 ° C.
G ′ (measured at an angular frequency of 10 rad / sec) is 10 to 10
It is preferably in the range of 200 Pa. Also to toner
External additives may be added. As an external additive, inorganic compound
Fine powder and organic compound fine particles are used. Inorganic compound
Physical particles are SiO₂ TiO ₂ , Al₂ O_Three , Cu
O, ZnO, SnO₂ , Fe₂ O_Three , MgO, BaO,
CaO, K₂ O, Na₂ O, ZrO₂ , CaO / SiO
₂ , K₂ O. (TiO₂ ) N, Al₂ O_Three ・ 2SiO
₂ , CaCO_Three , MgCO3, BaSO_Four , MgSO _Four
Etc. can be illustrated. Organic compound fine particles
Is a fine powder of fatty acids or derivatives thereof, metal salts thereof, etc.
Powder, fluorine resin, polyethylene resin, acrylic resin, etc.
The fine resin powder can be used. [0082]Image forming apparatus and method The method of forming an image on an electrophotographic image receiving paper is
It is not limited to. Applicable to various electrophotographic methods
Can be. For example, for electrophotographic paper,
-An image can be preferably formed. Color image
For the formation, an electrophotographic apparatus capable of forming a full-color image is used.
Can be done. Normal electrophotographic equipment
Located near the transport unit, latent image forming unit, and latent image forming unit.
Depending on the model, the main unit
In the middle of the toner image near the latent image forming unit and the image receiving paper transport unit
It has an interim transfer part. Further, as a method for improving the image quality,
Instead of electrostatic transfer or bias roller transfer,
Or in combination, adhesive transfer or heat-assisted transfer
Are known. For example, Japanese Patent Laid-Open No. 63-113576,
Japanese Patent Laid-Open No. 5-341666 has a specific structure.
Has been described. In particular, heat transfer type intermediate transfer bell
In the method using a toner, a toner having a small particle diameter (7 μm or less) is used.
It is preferable when used. Examples of the intermediate belt include
For example, an endless belt made of electroformed nickel
Has a thin film of silicone or fluorine and has a peeling property.
The given one is used. In addition, to the electrophotographic image receiving paper
Cooling device for intermediate belt after toner transfer or later half of transfer
Is preferably provided. With the cooling device, the toner is
The softening temperature of the binder used in it or glass transition
Cooled below the transfer temperature and efficiently transferred to electrophotographic image paper.
It can be copied and peeled off from the intermediate belt. Fixing affects the gloss and smoothness of the final image.
This is an important process. The fixing system is a heat and pressure roller.
Fixing by belt, belt fixing using belt, etc. are known
However, in terms of image quality such as gloss and smoothness, the belt
The fixing method is preferable. For the belt fixing method,
For example, the oi described in JP-A-11-352819
Lures type belt fixing method, Japanese Patent Laid-Open No. 11-2316
No. 71, secondary described in JP-A-5-341666
A method for simultaneously achieving transfer and fixing is known. Up
The surface of the fixing belt has toner removability or toner
To prevent component offset, silicon-based or
Fluorine-based or combination treatment is applied
It is preferable. In the second half of fixing, the belt is cooled.
To improve the peeling of the electrophotographic image receiving paper.
preferable. The cooling temperature depends on the toner binder and / or electricity.
The softening point of the polymer of the toner image-receiving layer of the image-receiving paper for child photographs,
Or it is preferable to make it below the glass transition point. on the other hand,
At the beginning of fixing, the toner image receiving layer of the electrophotographic image receiving paper or
It is necessary to raise the temperature to a temperature that sufficiently softens the toner.
The Specifically, the cooling temperature is 70 ° C or lower and 30 ° C or higher.
Preferred for use, 180 ° C. or less at the initial fixing stage, 10
0 degreeC or more is preferable. [0085] EXAMPLES Hereinafter, the present invention will be described in examples and comparative examples.
These examples and comparative examples will be described in more detail.
Does not limit the scope of the invention in any way. In addition,
In the following examples and comparative examples, “%” and “part”
Represents “mass%”, respectively. [0086]Example 1 Using the apparatus shown in FIG. 1, the basis weight is 160 g / m.²Base paper
A base paper 9 made of (thickness 200 μm) is sent from the delivery device 1
Supply at a line speed of 100 m / min, guide roll 7c
Then, the surface of the base paper 9 was subjected to corona treatment. Corona treatment out
The force is 0.002kw / m²/ Min. Meanwhile, melting
From extrusion die 5, MFR 40g / 10min, density 0.90
0g / cm^ThreeOf polypropylene (PP) resin with base paper 9
For a distance of 15 cm until the single screw extruder (diameter 6
0mm screw extruder), discharge temperature 30
Extruded at 0 ° C. Polypropylene resin melt film
However, the temperature when contacting the base paper 9 was 290 ° C. Also, a molten film of polypropylene resin
In the middle of the distance where the paper contacts the base paper 9, the ozone gas supply device
4 is placed at a distance of 30 cm from the molten film.
Concentration 30g / m^Three(Ozone gas flow rate 5m^Three/ Hour, melt
Ozone concentration 20g / m at 5cm from film^Three)
The side of the polypropylene resin film in contact with the base paper 9
Treat the surface and then in a stacked state,
6a and chill roll 6 (chill roll temperature: 15 ° C.)
(Nip pressure 4 MPa (40 kgf /
cm²)) Through the guide rolls 8a to 8c
And wound up on the winding device 2. The product wound up in the winding device 2 in this way.
A layer film is used as the delivery device 1, and a laminated film
In the same way as above, a polypropylene resin layer is
Formed. In this case, the surface of the base paper 9 is a mirror surface,
The back side was a matte surface. Provided on both sides of the obtained support
Corona discharge treatment for the obtained polypropylene resin layer
After having the following composition with a wire coater
The coating amount after drying the coating layer composition is about 0.1 g / m²Become
And dried. <Composition for undercoat layer>   5g gelatin   1000g of water Next, on the surface polypropylene resin layer,
Toner image receiver with the following composition on a wire coater
The coating composition when dried has a coating weight of 8 g / m²To be
And dried to form a toner image-receiving layer. <Composition for toner image-receiving layer>   400g of polyester resin (Toughton U-5, manufactured by Kao)   Titanium dioxide (Taipeke (registered trademark) A-220, manufactured by Ishihara Sangyo) 60g   TPP (8th Chemical) 34.8g800g of methyl ethyl ketone Note: TPP is triphenyl phosphate used as a plasticizer. Next, a protective layer is formed on the toner image receiving layer.
Then, a composition having the following composition has a coating weight of 0.
8g / m²Apply and dry to form a protective layer
did. <Protective layer>   A515GB (Takamatsu Yushi) 1790g   LX814 (made by Nippon Zeon) 491g   8900g of waterSH7028A (Toray Silicon Dow Corning) 740g Note) A515GB is a water-dispersed polyester resin.     LX814 is a water-dispersed acrylic resin used as a binder.     SH7028A has a structure of siloxane used as a slipping agent or mold release agent. Some silicone rubber. Next, on the back polypropylene resin layer
Use a bar coater to dry the back layer composition with the following composition:
Dry film weight is 4.5g / m²Apply and dry
A back layer was formed. <Back layer composition>   Polyester resin (Vaironal MD-1200, manufactured by Toyobo) 90g   Matting agent (Eposter L15, Nippon Shokubai) 50g10,000g of water Note) Eposter L15 as a matting agent does not have a melting point or glass transition temperature, Benzoguanamine-formalde which begins to decompose at 300 ° C. in differential thermal analysis Polymer particles having an average particle diameter of 12 μm made of a hydride condensate. The obtained electrophotographic image-receiving paper was cut into A4.
Thus, an image for printing was used. The printer used is shown in the figure
Except for the fixing belt system shown in Fig. 2, Fuji Xerox
Cus Color Laser Printer (DocuColor
  1250-PF) was used. That is, fixing as shown in FIG.
In the belt system 11, a heating roller 13 and a tension roller
The fixing belt 12 is suspended over the belt 15 and the tension is
The fixing roller 12 is interposed above the roller 15.
And a cleaning roller 6 is provided.
Under the roller 13, the pressure belt is passed through the fixing belt 2.
La 14 is provided. Electrophotography with latent toner image
The image receiving paper is the heating roller 13 from the right side in FIG.
And the pressure roller 14 are fixed and fixed.
Then, it moves on the fixing belt 12 and moves to the cleaning belt.
It is cleaned with La16. In this fixing belt system,
The conveyance speed of the fixing belt 12 is 30 mm / second.
The nip pressure between the heat roller 13 and the pressure roller 14 is
0.2 MPa (2 kgf / cm²) And heating roller
The set temperature of 13 is 150 ° C., which is the fixing temperature.
Equivalent to. The set temperature of the pressure roller 14 is 120.
° C. [0093]Evaluation methods (1) State of toner fixing surface About the electrophotographic image-receiving paper after printing,
The degree was evaluated. The evaluation criteria are as follows. O: There was no blister at all. Δ: Blister occurred, but no problem in practical use
there were. ×: Blister is severely generated and cannot be practically used.
there were. (2) Adhesiveness between base paper and polypropylene resin layer Degree of peeling between the base paper and the polypropylene resin layer on the surface
evaluated. The evaluation criteria are as follows. ○: Exfoliation was very difficult. (Triangle | delta): Peeling was the intensity | strength of the grade which is satisfactory practically. X: Peeling was easy. [0094]Comparative Examples 1-4 Example 1 except that the conditions described in Table 1 below were adopted.
A support was prepared in the same manner as described above. Also obtained support
The image receiving device for electrophotography using the body in the same manner as in Example 1.
Prepare paper and print as well, blister degree
The adhesiveness was evaluated. The results are shown in Table 1 below.
The [0095] [Table 1] Table 1Note 1) Ozone gas supply device and polypropylene (PP) tree
Ozone concentration in the atmosphere between the melted film of fat Note 2) From the ozone gas supply port of the ozone gas supply device 4
Temporary lowered perpendicular to the molten film of polypropylene (PP) resin
Along the imaginary line, the distance at the position of 5 cm from the molten resin film.
Zon concentration [0096] [Table 2] Table 1 (continued) As can be seen from the above results, according to the present invention.
Glossiness and image quality without generating blisters
Providing electrophotographic image-receiving paper capable of forming excellent images
be able to. [0098] According to the present invention, the gloss and the image quality are excellent.
Images can be provided.

BRIEF DESCRIPTION OF THE DRAWINGS FIG. 1 is a schematic configuration diagram showing an example of an apparatus used to form a support of the present invention. FIG. 2 is a schematic configuration diagram of a fixing belt system in a printer used in Examples and Comparative Examples. [Description of Symbols] 1 Sending device 2 Winding device 3 Corona treatment device 4 Ozone gas supply device 5 Melting extrusion die 6a Press roll 6 Chill rolls 7a, 7b, 7c, 8a, 8b, 8c Guide roll 9 Base paper 10 Polypropylene resin melt film 11 Fixing Belt System 12 Fixing Belt 13 Heating Roller 14 Pressure Roller 15 Tension Roller 16 Cleaning Roller

Claims (1)

What is claimed is: 1. A method for producing an electrophotographic image receiving paper support, comprising: (1) corona treatment on the surface of a base paper with an output of 0.010 kw / m ² / min or more; Performing a process selected from the group consisting of a plasma process and a flame process; and
(2) On the surface of the base paper subjected to the treatment, 18 to 50
a step of coating the polypropylene resin layer on the surface by melt-extruding a polypropylene resin having a melt flow rate (MFR) of g / 10 minutes, and in the step (2), the polypropylene resin Is characterized by applying ozone gas having an ozone concentration of 10 to 50 g / m ³ to the surface bonded to the base paper with respect to the polypropylene resin melt film extruded at 280 to 315 ° C. how to.