JPH04134352A - Conductive substrate and recording body using same - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed description of the invention]

[0001]

[Industrial application field]

The present invention relates to a conductive support, and more particularly to a conductive support that improves the water resistance of the conductive layer while maintaining the conductivity required for the conductive layer, and a recording medium using the same. This is what we provide. [0002]

[Conventional technology]

Conventionally, in recording materials such as electrophotographic photoreceptors and electrostatic recording paper, conductive materials have been used as supports for providing the recording layer (photoconductive layer in the case of electrophotographic photoreceptors, dielectric layer in the case of electrostatic recording materials). A sexual support is used. By the way, electrostatic recording methods using electrostatic recording materials have been used in various fields such as facsimile, drafting, newspaper proofing, and official document recording. With the development of compatible devices, its uses have rapidly expanded, and it has become popular, particularly in design-related, event-related, and advertising-related fields because color copies can be easily obtained. Against this background, electrostatic recording media are required to have excellent water resistance so that they can be used outdoors and to provide excellent recording properties even under harsh environmental conditions. However, conventional electrostatic recording materials have amino groups on a water-resistant support such as paper, resin film, or fabric that has been previously treated to make it waterproof, as disclosed in JP-A No. 61-264345. A conductive support provided with a conductive layer containing a conductivity imparting agent made of a cationic polymer electrolyte is used. However, such conventional electrostatic recording materials have a perfect score in that the electrical resistance of the conductive layer is not easily affected by changes in humidity under a wide range of environmental conditions, so-called low humidity dependence. Since the cationic polymer electrolyte contained in the layer is water-soluble, when used outdoors as mentioned above, the conductive layer gradually dissolves when exposed to rain, causing the recording layer to peel off. . Therefore, an electrostatic recording material having excellent recording properties and sufficient water resistance to be used outdoors has not yet been developed. [0003]

[Problem to be solved by the invention]

In view of the above-mentioned circumstances, the present invention provides a conductive support in which the water resistance of the conductive layer is improved while maintaining good recording characteristics, and a recording medium using the same. [0004]

[Means to solve the problem]

The first conductive support of the present invention is a conductive support provided with a conductive layer on at least one side of the support, and the conductive layer contains a polymerizable vinyl monomer represented by the following general formula (I), and contains as a main component an acrylic copolymer with at least one polymerizable vinyl monomer, and the proportion of the polymerizable vinyl monomer component represented by the general formula (I) in the copolymer is 10 to 45% by weight. A conductive support characterized by: [0005] General formula

[7] (In the formula, R is H or CH3, R2 is an alkylene group, R3
, R4 and R5 are alkyl groups or benzyl groups having 1 to 4 carbon atoms, X is CI, Br, CH3SO4, C2H5504
represents. ) Further, the second conductive support of the present invention is provided with an electronically conductive layer containing an electronically conductive powder and a binding resin as main components on one side of the support, and the following on the other side. A conductive layer containing as a main component an acrylic copolymer of a polymerizable vinyl monomer represented by the general formula (I) and at least one other polymerizable vinyl monomer is provided, and the copolymer has the general formula The conductive support is characterized in that the proportion of the polymerizable vinyl monomer component represented by (I) is 10 to 45% by weight. [0006] General formula

[8] (In the formula, R1 is H or CH3, R2 is an alkylene group, R
3, R4 and R5 are alkyl groups or benzyl groups having 1 to 4 carbon atoms, X is C1, Br, CH3SO4, C2H5SO
Represents 4. ) Furthermore, the third conductive support of the present invention includes, on the support,
An electronically conductive conductive layer containing an electronically conductive powder and a binding resin as main components, and at least one of the following polymerizable vinyl monomers represented by formula (I) and other polymerizable vinyl monomers: contains an acrylic copolymer with as a main component, and the proportion of the polymerizable vinyl monomer component represented by formula (I) in the copolymer is 10 to 4.
This is a conductive support characterized by having conductive layers of 5% by weight sequentially laminated. [0007] General formula

[9] (In the formula, R1 is H or CH3, R2 is an alkylene group, R
3, R4 and R5 are alkyl groups or benzyl groups having 1 to 4 carbon atoms, X is C1, Br, CH3SO4, C2H550
Represents 4. ) On the other hand, the first recording body of the present invention is a recording body in which a conductive layer and a recording layer are sequentially laminated on at least one side of a support, in which the conductive layer has a polymer compound represented by the following formula (I). containing as a main component an acrylic copolymer of a polymerizable vinyl monomer and at least one other polymerizable vinyl monomer, and in the copolymer, the polymerizable vinyl monomer component represented by the above-mentioned formula (I) is The recording medium is characterized in that the proportion thereof is 10 to 45% by weight. [0008] General formula

[Formula 10] (wherein, R1 is a hydrogen atom or a methyl group, R2 is an alkylene group, R3, R4 and R5 are an alkyl group having 1 to 4 carbon atoms or a benzyl group, and X is C1, Br, CH3SO4, C2
Represents H5SO4. ) Further, the second recording medium of the present invention is provided with an electronically conductive layer containing an electronically conductive powder and a binding resin as main components on one side of the support, and a conductive layer and a conductive layer on the other side. A recording body formed by sequentially laminating recording layers, the conductive layer having the following general formula (
A polymerization method containing as a main component an acrylic copolymer of a polymerizable vinyl monomer represented by I) and at least one other polymerizable vinyl monomer, and in which the copolymer is represented by the general formula (I). The recording medium is characterized in that the proportion of the vinyl monomer component is 10 to 45% by weight. [0009] General formula

[11] (In the formula, R1 is a hydrogen atom or a methyl group, R2 is an alkylene group, R3, R4 and R5 are an alkyl group having 1 to 4 carbon atoms or a benzyl group, X is C1, Br, CH3SO4, C2
Represents H5504. ) Furthermore, the third recording medium of the present invention includes an electronically conductive layer containing an electronically conductive powder and a binding resin as main components on a support, which is represented by the following general formula (I). A polymerizable vinyl monomer component containing as a main component an acrylic copolymer of a polymerizable vinyl monomer and at least one other polymerizable vinyl monomer, and represented by the general formula (■) in the copolymer. The proportion of is 10 to 45% by weight.
This is a recording body characterized in that a conductive layer and a recording layer are sequentially laminated. [0010] General formula

[12] (In the formula, R1 is a hydrogen atom or a methyl group, R2 is an alkylene group, R3, R4 and R5 are an alkyl group having 1 to 4 carbon atoms or a benzyl group, X is C1, Br, CH3SO4, C2
Represents H5504. ) [0011] Hereinafter, the present invention will be explained in more detail based on the drawings. 1 and 2 show the structure of the first conductive support of the present invention, and FIG. 1 shows a conductive layer 2 on one side of the support 1 containing a polymer having the above-mentioned specific components and composition. In FIG. 2, the conductive layer 2 in FIG.
It is provided on both sides of the FIG. 3 shows a second conductive support of the present invention. In the conductive support of FIG. A conductive layer 3 containing . Further, FIG. 4 shows a third conductive support of the present invention, in which the electronic conductive powder in FIG. A conductive layer 3 containing adhesive resin as a main component is provided. [0012] On the other hand, the first recording body of the present invention has a recording layer provided on the conductive layer 2 shown in FIGS. 1 and 2, and the second recording body has the conductive layer 2 shown in FIG. A recording layer is provided on layer 2, and the third recording body is provided with a recording layer on conductive layer 2 shown in FIG. Next, the constituent materials used in the present invention will be explained. The conductive layer containing the acrylic copolymer as a main component in the present invention will be explained. In the present invention, the general formula (
Examples of the polymerizable vinyl monomer represented by I) include dimethylaminoethyl (meth)acrylate, diethylaminoethyl (meth)acrylate, dimethylaminopropyl (meth)acrylate, and diethylaminopropyl (meth)acrylate.
For dialkylaminoalkyl (meth)acrylates such as meth)acrylates, for example, methyl chloride, ethyl chloride,
It is a quaternary ammonium salt of aminoalkyl (meth)acrylate obtained by the action of an alkylating agent such as benzyl chloride, methyl bromide, ethyl bromide, dimethyl sulfate, diethyl sulfate, etc. In addition, other polymerizable vinyl monomers that form a copolymer with the quaternary ammonium salt of the aminoalkyl (meth)acrylate include methyl (meth)acrylate.
Acrylate, ethyl (meth)acrylate, alkyl (meth)acrylate such as butyl (meth)acrylate, n-butyl (meth)acrylate, 2-ethylhexyl (meth)acrylate, (meth)acrylamide,
Examples include, but are not limited to, acrylonitrile, vinyl acetate, styrene, α-methylstyrene, and vinyltoluene. [0013] The acrylic copolymer used in the present invention is a copolymer consisting of a polymerizable vinyl monomer represented by general formula (I) as described above and at least one other polymerizable vinyl monomer. It is a combination and is produced by a known polymerization method. At this time, in the composition of the copolymer, the general formula (
The polymerizable vinyl monomer component represented by I) is 10 to 4
It is necessary that the amount is 5% by weight, preferably 25 to 4% by weight.
It is 0% by weight. Here, when the proportion of the polymerizable vinyl monomer component represented by both formulas (I) exceeds 45%,
Unable to obtain sufficient water resistance, on the other hand, the ratio is 10%
If the amount is less, the electrical resistance of the conductive layer becomes high, and necessary conductivity cannot be obtained, resulting in problems in image characteristics. [0014] In the present invention, the above-described conductive layer containing an acrylic copolymer as a main component is formed using the acrylic copolymer as a binder component. At this time, if necessary, carbon black graphite, tin oxide, titanium oxide, etc.
Conductive substances such as conductive fine powders such as zinc oxide, antimony oxide, gold, silver, copper, and nickel, and cationic or anionic polymer electrolytes, as well as silica,
Inorganic pigments such as aluminum hydroxide, aluminum oxide, kaolin, talc, mica, and calcium carbonate, organic pigments such as cellulose powder, polyethylene powder, and polypropylene powder, and acrylic and styrene pigments that are compatible with the acrylic copolymer. The conductive layer can also be formed by adding and dispersing a resin such as polyester or the like into the acrylic copolymer. The conductive layer having such a structure has a surface resistance value of 1.0×105 to 1°0×109Ω.
It is desirable that [0015] Next, an explanation will be given of the electron-conductive conductive layer mainly composed of an electron-conductive powder and a binding resin, which are constituent elements of the second and third conductive supports and recording bodies of the present invention. do. Examples of the electronically conductive powder used in the present invention include conductive fine powders such as carbon black, tin oxide, gold, and silver as described above, metal oxides such as zinc oxide and indium oxide, antimony oxide, and tin oxide. etc., and furthermore,
Examples include, but are not limited to, needle-like materials in which whiskers such as potassium titanate, silicon carbide, and aluminum borate are doped with antimony oxide, tin oxide, and the like. In addition, binding resins include polyester, polycarbonate, polyamide, polyurethane,
Examples include (meth)acrylic resin, styrene resin, butyral resin, and fluororesin. [0016] The electron-conductive conductive layer of the present invention mainly consists of an electron-conductive powder and a binding resin. It is preferable to mix them in parts by weight. Here, if the amount of electronic conductive powder is too small, it will be used at low humidity, and if it is too large, it will be used at high humidity.
This results in problems with image characteristics such as image unevenness. Note that an electronically conductive conductive layer having such a configuration also includes:
Its surface resistance value is 10×10 to 1.0×1 as above.
09 is desirable. [0017] Examples of the support in the present invention include paper, synthetic paper, nonwoven fabric, various resin films, fabric, and leather, but are not particularly limited. In addition, in a recording medium that requires severe water resistance so as to withstand outdoor use, it is preferable to use paper, resin film, cloth, or the like that has been treated to be water resistant by impregnating or coating with a resin as a support. [0018] Further, the recording medium of the present invention is one in which a recording layer is provided on the conductive layer of the above-mentioned conductive support whose main component is the above-mentioned specific acrylic copolymer. For the recording layer, in the case of an electrostatic recording medium, various organic solvent-soluble resins with high insulation resistance that function as a dielectric layer can be used, such as polyester, polycarbonate, polyamide, polyurethane, (meth), etc. Acrylic resin, styrene resin, butyral resin, olefin resin, silicone resin,
Examples include fluororesin. Note that, if necessary, inorganic pigments and organic pigments used in the above-mentioned conductive layer can be added and used. [0019] When an electrophotographic photosensitive layer is provided as a recording layer, a binder resin in which a photoconductive substance such as zinc oxide is dispersed is used. In the present invention, in order to provide a conductive layer, an electronically conductive conductive layer, and a recording layer, for example, a paint in which the above-mentioned materials are dissolved or dispersed in a solvent such as water, methanol, ethanol, toluene, acetone, methyl ethyl ketone, or ethyl acetate is used. It can be applied and dried using an air knife coater, roll coater, wire vani coater, spray coater, fountain coater, reverse roll coater, etc. [0020] In the conductive support and recording medium of the present invention, (1) if a conductive layer is provided only on one side, the conductivity between the support and the conductive layer and/or the support On the side opposite to the layer (2) If a conductive layer or an electronically conductive conductive layer is provided on both sides of the support, a barrier layer may be provided between the support and one or both conductive layers. can. The barrier layer can be made of various materials such as styrene-butadiene copolymer, acrylic/acrylic acid ester copolymer, styrene/acrylic copolymer, vinyl acetate/acrylic copolymer, vinyl chloride, vinyl chloride/vinyl acetate copolymer, etc. Although emulsion-based resins are preferred, various known resins can be used without being limited thereto. Further, the inorganic pigments, organic pigments, and conductive pigments used in the conductive layer can be used as necessary. The conductive support of the present invention is used not only for electrostatic recording materials, but also for, for example, electrophotographic photoreceptors, original plates for electrophotographic lithographic printing, and the like. [0021]

【Example】

Next, a detailed explanation will be given using examples. It should be noted that all parts indicating formulations represent parts by weight. Example 1 Using high-quality paper with a basis weight of 50 g and 7 m2 as a support,
A conductive layer coating material having the following composition was coated on one side of the support and dried to form a conductive layer with a coating amount of 5 g/m2, thereby producing a conductive support of the present invention. "Acrylic copolymer consisting of the following monomer composition ratio"
30 parts "-Quaternary ammonium salt listed in Table-1 ・
...40% by weight-]1 Methyl methacrylate
30% by weight Ln-butyl methacrylate 30% by weight L methanol/
Mixed solvent of methyl ethyl ketone (50150) 70 parts [0022] Example 2 As the acrylic copolymer used in the coating for the conductive layer in Example 1, a copolymer of quaternary ammolyrum salt/methyl methacrylate/n-butyl methacrylate was used. A conductive support of the present invention was produced in exactly the same manner as in Example 1, except that a copolymer having a polymerization ratio of 30:35:35 was used. Examples 3 to 6 Table 1 shows the proportion of quaternary ammonium groups in the acrylic copolymer used in the conductive layer paint in Example 1.
A conductive support of the present invention was produced in exactly the same manner as in Example 1, except that the described compounds were used. [0023] Example 7 A coating amount of 7 g was applied using the following composition as a paint for the conductive layer.
The conductive support of the present invention was produced in exactly the same manner as in Example 1, except that /m2 was used. (b) Acrylic copolymer consisting of the following monomer composition ratio:
20 parts "Quaternary ammonium salts listed in Table-1"
...40% by weight-yomethyl methacrylate
...30% by weight L-n-butyl methacrylate ...30% by weight-'1 Calcium carbonate 10
70 parts of a mixed solvent of methanol/methyl ethyl ketone (50150) Example 8 As the acrylic copolymer used in the conductive layer paint in Example 1, a copolymer of quaternary ammonium salt/methyl methacrylate/n-butyl methacrylate was used. Polymerization ratio is 1
A conductive support of the present invention was produced in exactly the same manner as in Example 1, except that a copolymer having a ratio of 0:45:45 was used. [0024] Example 9 A coating amount of 6 g was applied using the following composition as a paint for a conductive layer.
The conductive support of the present invention was produced in exactly the same manner as in Example 1, except that /m2 was used. (b) Acrylic copolymer consisting of the following monomer composition ratio:
20 parts [-Quaternary ammonium salt listed in Table 1...10% by weight-] Methyl methacrylate
...45% by weight IL-n-butyl methacrylate ...45% by weight-1 Conductive zinc oxide (manufactured by Hakusui Chemical Co., Ltd., 23-K)
10 parts L methanol/methyl ethyl ketone (50 parts
150) mixed solvent 70 parts [0025]

[Table 1] Table Example 10 In Example 1, before providing a conductive layer on one side of the support, an electronically conductive conductive layer (coating amount: 5 g) was applied to the other side of the support using a paint having the following composition. The conductive support of the present invention was produced in exactly the same manner as in Example 1, except that the conductive support of the present invention was provided in advance. "= Conductive potassium titanate whiskers
50 copies (manufactured by Ohita Kagaku Co., Ltd., Dentol WK-300)
Polyester resin 1
25 parts 1, (manufactured by Toyobo Co., Ltd., Byron 240, solid content 40
%) L-methyl ethyl ketone
75 parts [0026] Example 11 The present invention was carried out in exactly the same manner as in Example 10, except that a coating material with the following composition was used as the paint for the electronically conductive layer provided in advance on the other surface of the support. An inventive conductive support was produced. -70 parts of conductive zinc oxide (manufactured by Hinaga Chemical Co., Ltd., 23-K) polyester resin
75 parts (manufactured by Toyobo Co., Ltd., Byron 240, solid content 40%)
g) L'1'/
55 parts 1-methyl ethyl ketone
50 parts [0027] Example 12 In Example 1, an electron-conductive conductive layer (coating amount: 5 g/m2) was previously provided on one side of the support using a paint having the following composition, and then the electron-conductive conductive layer was A conductive layer was provided thereon in the same manner as in Example 1 to produce a conductive support of the present invention. “- Conductive potassium titanate whiskers
50 copies (manufactured by Ohita Kagaku Co., Ltd., Dentol WK-300)
1 Polyester resin
125 parts (manufactured by Toyobo Co., Ltd., Byron 240, solid content 40
%) - Methyl ethyl ketone
75 parts [0028] Comparative Example 1 As the acrylic copolymer used in the conductive layer paint in Example 1, the copolymerization ratio of quaternary ammonium salt/methyl methacrylate/n-butyl methacrylate was 5:50: A comparative conductive support was produced in exactly the same manner as in Example 1, except that the copolymer No. 45 was used. Comparative Example 2 As the acrylic copolymer used in the conductive layer paint in Example 1, a copolymer with a copolymerization ratio of quaternary ammonium salt/methyl methacrylate/n-butyl methacrylate of 50:25:25 was used. A comparative conductive support was produced in exactly the same manner as in Example 1, except that coalescence was used. [0029] Comparative Example 3 A high-quality paper with a basis weight of 50 g/m2 was used as a support, and one side of the support was coated with an electron-conductive conductive layer paint having the following composition A, and the other side was coated with a paint having the following composition. Comparative conductive supports were prepared by coating and drying a conductive layer coating material with a coating weight of 5 g/m 2 . (Paint composition A) - Conductive zinc oxide (manufactured by Hakusui Chemical Co., Ltd., 23-K)
100 parts polyvinyl alcohol (manufactured by Kuraray Co., Ltd., PVA105) 5 parts - water
145
parts (paint composition) 1-Polyvinylbenzyltrimethylammonium chloride 152 parts (manufactured by DOW Chemica 1, ECR-77, solid content 36%) Calcium carbonate (manufactured by Shiraishi Kogyo Co., Ltd., Whiten SB) 40 parts Polyvinyl alcohol (Kuraray) company, PVA105)
5 part riichisui
195 parts [0030] Comparative Example 4 Example 12 except that a conductive layer paint having the composition of Comparative Example 3 was used instead of the conductive paint containing an acrylic copolymer as a main component. A comparative conductive support was produced in exactly the same manner as above. The conductive layer containing the acrylic copolymer as a main component of the conductive support prepared in Examples 1 to 12 and Comparative Examples 1 to 2 above, and the coating composition of the conductive support prepared in Comparative Examples 3 and 4. A recording layer coating material having the following composition was applied and dried on the conductive layer formed by the above method to form a recording layer with a coating amount of 5 g/m2, thereby producing an electrostatic recording material of the present invention or for comparison. . -n-butyl methacrylate-methyl methacrylate (1:1) copolymer (molecular weight approximately 100,000, 40% toluene solution) 100 parts calcium carbonate
40 copies L-))'I
vl a
18° section [00311 Image evaluation and water resistance test were conducted on the electrostatic recording material produced above in the following manner. (1) Image evaluation: Using an electrostatic color plotter (manufactured by Versatic Co., Ltd., CE3436), 30°C, 30%RH, 2
Images were formed on an electrostatic recording medium under three environmental conditions: 0°C, 60% RH, and 130°C, 80% RH, and image density (black areas were measured using a Macbeth reflection densitometer RD-514).
and evaluated the image quality. The image quality was evaluated as ◯ if there was no image quality defect such as image roughness or skipping, and × if at least one of the above image defects was observed to a practical extent. (2) Water resistance test: After immersing the electrostatic recording material on which the image was formed in the above image evaluation in water for 24 hours, those with no swelling or peeling of the recording layer are marked as ○ and swollen. Or, those in which peeling was observed were marked as ×. The results of the image evaluation and water resistance test are shown in Table 2, and the electrostatic recording material of the present invention has good recording properties as well as
It was confirmed that it had excellent water resistance. [0032]

[Table 2] Table also shows the conductive layer mainly composed of the acrylic copolymer of the conductive support prepared in Examples 1 to 6, 9 to 12 and Comparative Example 2, and the conductive layer prepared in Comparative Examples 3 and 4. A photosensitive layer coating composition having the following composition was applied and dried on the conductive layer formed from the coating composition of the conductive support of the present invention to form a photosensitive layer with a thickness of 15 μm. An electrophotographic photoreceptor, that is, a lithographic printing original plate and a comparative lithographic printing original plate were prepared using the same. "-n-butyl methacrylate-acrylic acid-styrene copolymer (8:1:1) (solid content 40%)
130 parts zinc oxide (manufactured by Sakai Chemical Co., Ltd., 5AZEX#
2000) 110 parts toluene
200 parts Riichi sensitizing dye (Rose Bengal)
0.1 part [0033] The lithographic printing original plate prepared above was immersed in water for 24 hours to evaluate its water resistance, and it was found that the comparative lithographic printing original plate had swelling and peeling of the photosensitive layer. In contrast, the lithographic printing original plate using the conductive support of the present invention had no problems and was confirmed to have excellent water resistance. Furthermore, when the lithographic printing original plate using the conductive support of the present invention was subjected to plate making, etching, and a continuous printing test of 5,000 sheets in the manner described below, prints with good images were obtained. It was confirmed that the lithographic printing original plate using the transparent support had good electrophotographic properties and printability. - Plate making: Elefax PC301W (manufactured by Iwasaki Tsushinki Co., Ltd.) was used. Desensitization: A commercially available desensitizing liquid (H-88, manufactured by Tomoe Paper Manufacturing Co., Ltd.) and an etching processor (Ricoh Etching Processor, Ricoh Co., Ltd.) were used. Desensitization was carried out by passing it through the dampening solution.Dampening water: Tap water was used as the dampening solution.Printing machine: An offset printing machine (2800CD, manufactured by Ryobi Co., Ltd.) was used for desensitization. ]

【Effect of the invention】

By specifying the structure of the conductive layer as described above, the conductive support of the present invention and the recording medium using the same have low humidity dependence under a wide range of environmental conditions, have good recording characteristics, and have excellent water resistance. It has the excellent effect of being able to be used outdoors and being adaptable to a wide range of uses. [0035]

[Brief explanation of the drawing]

[Figure 1]

[Figure 2]

[Figure 3]

FIG. 1 to FIG. 4 are cross-sectional views showing the layer structure of the conductive support of the present invention.

[Explanation of symbols]

support conductive layer electronically conductive conductive layer

[Document core]

[Figure 1]

[Figure 2]

[Figure 3]

[Figure 4] drawing

Claims (6)

[Claims] Claim 1: A conductive support having a conductive layer provided on at least one side of the support, wherein the conductive layer has the following general formula (I
) and at least one other polymerizable vinyl monomer as a main component, and the polymerizability of the copolymer represented by the general formula (I) A conductive support characterized in that the proportion of the vinyl monomer component is 10 to 45% by weight. General formula [Chemical formula 1] ▲There are mathematical formulas, chemical formulas, tables, etc.▼... (I) (In the formula, R_1 is H or CH_3, R_2 is an alkylene group, R_3, R_4 and R_5 are alkyl groups having 1 to 4 carbon atoms. group or benzyl group, X is Cl, Br, CH_3SO_
4, represents C_2H_5SO_4. ) 2. An electronically conductive layer containing an electronically conductive powder and a binding resin as main components is provided on one side of the support,
A conductive layer containing as a main component an acrylic copolymer of a polymerizable vinyl monomer represented by the following general formula (I) and at least one other polymerizable vinyl monomer is provided on the other surface; The above general formula (
A conductive support characterized in that the proportion of the polymerizable vinyl monomer component represented by I) is 10 to 45% by weight. General formula [Chemical formula 2] ▲ Numerical formulas, chemical formulas, tables, etc. are available ▼... (I) (In the formula, R_1 is H or CH_3, R_2 is an alkylene group, R_3, R_4 and R_5 are alkyl groups having 1 to 4 carbon atoms. group or benzyl group, X is Cl, Br, CH_3SO_
4, represents C_2H_5SO_4. ) 3. An electron-conductive conductive layer containing an electron-conductive powder and a binder resin as main components on a support, a polymerizable vinyl monomer represented by the following general formula (I), and other components. Contains as a main component an acrylic copolymer with at least one type of polymerizable vinyl monomer, and the proportion of the polymerizable vinyl monomer component represented by the general formula (I) in the copolymer is 10 to 45% by weight. 1. A conductive support characterized in that certain conductive layers are sequentially laminated. General formula [Chemical formula 3] ▲There are mathematical formulas, chemical formulas, tables, etc.▼... (I) (In the formula, R_1 is H or CH_3, R_2 is an alkylene group, R_3, R_4 and R_5 are alkyl groups having 1 to 4 carbon atoms. group or benzyl group, X is Cl, Br, CH_3SO_
4, represents C_2H_5SO_4. ) 4. A recording material comprising a conductive layer and a recording layer sequentially laminated on at least one side of a support, wherein the conductive layer contains a polymerizable vinyl monomer represented by the following general formula (I) and other polymerizable vinyl monomers. Contains as a main component an acrylic copolymer with at least one vinyl monomer, and the proportion of the polymerizable vinyl monomer component represented by the general formula (I) in the copolymer is 10 to 45% by weight. A recording body characterized by. General formula [Chemical formula 4] ▲ Numerical formulas, chemical formulas, tables, etc. are available ▼... (I) (In the formula, R_1 is a hydrogen atom or a methyl group, R_2 is an alkylene group, R_3, R_4 and R_5 have 1 to 4 carbon atoms. alkyl group or benzyl group, X is Cl, Br, CH_3
Represents SO_4, C_2H_5SO_4. ) 5. An electronically conductive layer containing an electronically conductive powder and a binding resin as main components is provided on one side of a support, and a conductive layer and a recording layer are sequentially laminated on the other side. In the recording medium, the conductive layer contains as a main component an acrylic copolymer of a polymerizable vinyl monomer represented by the following general formula (I) and at least one other polymerizable vinyl monomer, and The above general formula (
A recording material characterized in that the proportion of the polymerizable vinyl monomer component represented by I) is 10 to 45% by weight. General formula [Chemical formula 5] ▲ Numerical formulas, chemical formulas, tables, etc. are available ▼... (I) (In the formula, R_1 is a hydrogen atom or a methyl group, R_2 is an alkylene group, R_3, R4 and R_5 have 1 to 4 carbon atoms. alkyl group or benzyl group, X is Cl, Br, CH_3S
Represents O_4, C_2H_5SO_4. ) 6. An electronically conductive layer containing an electronically conductive powder and a binding resin as main components on a support, a polymerizable vinyl monomer represented by the following general formula (I), and other components. Contains as a main component an acrylic copolymer with at least one type of polymerizable vinyl monomer, and the proportion of the polymerizable vinyl monomer component represented by the general formula (I) in the copolymer is 10 to 45% by weight. A recording body characterized in that a conductive layer and a recording layer are sequentially laminated. General formula [Chemical formula 6] ▲ Numerical formulas, chemical formulas, tables, etc. are available ▼... (I) (In the formula, R_1 is a hydrogen atom or a methyl group, R_2 is an alkylene group, R_3, R_4 and R_5 have 1 to 4 carbon atoms. alkyl group or benzyl group, X is Cl, Br, CH_3
Represents SO_4, C_2H_5SO_4. )