JPH11174711A - Transparent film for image recording and production of image recording film - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain a transparent film for image recording with a toner fixing layer having improved compatibility with a toner resin and capable of forming a color image of high image quality. SOLUTION: The transparent film for image recording has a transparent substrate and a toner receiving layer disposed on at least one principal face of the substrate. The toner receiving layer contains a transparent resin having 90-180 deg.C softening point and 0.1-40 pts.wt. amide type nonionic surfactant based on 100 pts.wt. of the transparent resin in a state in which the surfactant is compatibilized with the resin.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a light-transmitting transparent film for image recording and a method for producing an image recording film which are suitably used for an overhead projector (hereinafter referred to as "OHP").

[0002]

2. Description of the Related Art Recently, an electrophotographic method has been used for forming a color image for OHP projection on a transparent film. In this method, black and chromatic toners are adhered to a transparent film according to a desired pattern on an electrophotographic apparatus provided by various manufacturers, so that a color image or the like is easily provided.

[0003] However, the O
When actually projecting an HP film, a desired clear image is not reproduced well on a screen, and in particular, a color image in which a blackish-gray image that is significantly more than the color directly observed with the naked eye appears. was there. As described above, the main reason why a clear projected image having good transparency cannot be obtained is that the surface of the toner image formed on the transparent film by the electrophotographic method remains uneven. That is, since the light incident on the transparent base material supporting the image is scattered and irregularly reflected by the unevenness of the toner image surface, the transmission amount of light in the toner image portion is reduced, and as a result, a black-gray image is projected. It was.

In order to solve such a problem and improve the clarity and transparency of a projected image, several improvements of a transparent film for recording an image have been proposed. For example, Japanese Unexamined Patent Publication No. Hei 2-263624 discloses a device having a base made of a first transparent resin and a toner fixing layer made of a second transparent resin provided on the base. 2
Has a solubility parameter in the range of 9.5 to 12.5, a storage elastic modulus (G ′) at 160 ° C. of 10 to 10,000 dyne / cm ² , and is further fixed. Disclosed is a transparent laminated film characterized in that the storage elastic modulus of the toner to be used is smaller than the elastic modulus of the toner fixing layer. In such a transparent film, the pressure at the time of fixing causes the toner particles to be flattened on the fixing layer, and the fixing layer has good compatibility with the resin contained in the toner. Flattening can be performed effectively. However, in these transparent films, when a fixing operation is performed without using a release agent (release agent) such as silicone oil, hot offset may occur in an image forming process.

On the other hand, a release agent which is liquid at room temperature, such as silicone oil, tends to cause stickiness on the surface of the toner receiving layer on which an image is formed. Therefore, it has been proposed to use a toner containing a wax as a release agent and to use the toner together with a transparent film compatible with the wax-containing toner. For example, JP-A-5-181300 and JP-A-6-75418 disclose a transparent film for image formation having a base layer and a toner fixing layer capable of absorbing a wax component. In the former publication, the toner fixing layer has an absorbing layer made of inorganic particles, and in the latter, the fixing layer is made of a resin containing a diene component such as polybutadiene. In these films, at the time of fixing, the wax bleeding from the toner prevents hot offset, and also absorbs the bleeding wax from the toner after fixing, preventing the remaining wax from remaining on the image surface, Can effectively prevent the image quality from deteriorating.

[0006]

However, a transparent film compatible with the above-mentioned wax-containing toner has the inherent effects of the toner fixing layer (such as flattening of a toner image and compatibility with a toner resin). It was low, and there was a possibility that the image quality could not be improved after all. Further, the image quality of the toner containing no wax is rather deteriorated.
The main cause of such a decrease in image quality is that the compatibility between the toner fixing layer and the toner resin is low.

That is, an object of the present invention is to provide an image recording apparatus having a toner fixing layer having improved compatibility with a toner resin, regardless of whether wax is contained or not, and capable of forming a high-quality color image. To provide a transparent film for use.

[0008]

In order to solve the above-mentioned problems, the present invention provides a transparent film for image recording having a transparent substrate and a toner receiving layer provided on at least one major surface of the substrate. Wherein the toner-receiving layer comprises a light-transmitting resin having a softening point in the range of 90 to 180 ° C. and an amide-type nonionic resin in the range of 0.1 to 40 parts by weight based on 100 parts by weight of the light-transmitting resin. Provided is a transparent film for image recording, which comprises a surfactant in a state of being dissolved in the light transmitting resin.

[0009]

The toner receiving layer (that is, the toner fixing layer)
Since it contains a light-transmitting resin having a softening point in the range of 90 to 180 ° C., it is possible to effectively prevent the toner particles after fixing from sinking into the inside of the receiving layer and to leave irregularities on the surface of the toner image, and to sharpen the image. The transparency and transparency are improved. If the softening point is less than 90 ° C., hot offset is likely to occur at the time of fixing the toner. Conversely, if the softening point exceeds 180 ° C., it may not be possible to effectively prevent unevenness from remaining on the surface of the toner image.

Further, the amide type nonionic surfactant is as follows:
Functions as a compatibilizer between the resin of the toner and the light-transmitting resin of the receiving layer, increasing the compatibility between a wide variety of resins,
Effectively enhance image quality (especially brightness and saturation). The surfactant is used in an amount of 0.1 to 4 with respect to 100 parts by weight of the light-transmitting resin.
It is contained in the range of 0 parts by weight.

In addition, when a wax-containing toner is used, the surfactant inhibits the crystal growth of wax bleeding from the toner at the time of fixing, prevents cloudiness due to wax crystallization, and improves image transparency. Prevent drop. In particular, it has an excellent effect of preventing a decrease in lightness and saturation in a high color density portion due to wax turbidity. In addition, the original function of the wax, that is, the effect of preventing hot offset and preventing the reduction of the smoothness of the image surface due to the offset is sufficiently obtained, and the brightness and chroma of the image are improved.

That is, the transparent film for image recording of the present invention has high image quality even when used in combination with a wide range of toners regardless of the type of toner resin and the presence or absence of wax. A sexual image can be formed.

[0013]

BEST MODE FOR CARRYING OUT THE INVENTION [Transparent Substrate] The transparent substrate (hereinafter sometimes simply referred to as "substrate") used in the present invention is selected from ordinary polymer films having high transparency. it can. A film having a thickness of about 25 to 175 μm which is excellent in transparency, heat resistance, strength and rigidity is preferred. Specific examples of preferred polymers include polyethylene terephthalate. In addition, polyolefin, polycarbonate,
Polymers such as acrylic and polyvinylidene fluoride can also be used.

[Toner-Receiving Layer] As the light-transmitting resin of the toner-receiving layer of the present invention, it is preferable to use a resin having excellent transparency, good compatibility with the resin forming the toner, and substantially the same refractive index. . By using such a resin,
This is because the light transmittance of the toner image is not hindered. The resin used for the toner receiving layer preferably has a lower softening point than the toner used for image formation. Smoothing the image surface while maintaining the resolution of the toner image by increasing the degree of softening of the toner receiving layer rather than melting (or softening) the toner due to compression under high temperature conditions in the toner fixing operation Because you can.

At present, the toner mainly used in the field of electrophotography has a softening point in the range of 95 to 190 ° C., so that the toner receiving layer preferably has a softening point in the range of 90 to 180 ° C. It is. As used herein, the term “softening point” refers to a temperature at which a solid resin softens into a rubbery state or a temperature at which a crystal part in a molecule melts. this is,,
It is measured by a ring and ball method and a needle penetration method.

Specific examples of suitable resins contained in the toner receiving layer as light-transmitting resins include thermoplastic resins such as polyester resins, epoxy resins, acrylic resins (including styrene-acrylic copolymers), and polyurethane resins. Can be mentioned. These resins may be either a solution type or a dispersion type. "Soluble resins" include water; alcohols such as methanol and ethanol; ketones such as acetone and methyl ethyl ketone; esters such as ethyl acetate and butyl acetate; and solvents such as aromatic hydrocarbons such as toluene and xylene. Means soluble. The “dispersible resin” means a resin that can be dispersed in a solvent as described above, and is prepared by suspension polymerization or emulsion polymerization.

For example, as the polyester resin, a polyester resin formed by polymerizing a mixture of an aromatic dicarboxylic acid and an aliphatic dicarboxylic acid and an aliphatic diol as starting materials is preferable. Such a polyester resin has good compatibility with the amide type nonionic surfactant,
It is easy to contain a predetermined amount of the above surfactant without lowering the transparency of the toner receiving layer. Also,
Since the storage elastic modulus at the softening temperature is also in an appropriate range,
The surface of the toner image can be easily flattened.

Among the above polyesters, polyester resins having the following characteristics A) and B) are particularly preferred. A) a mixture obtained by polymerizing a mixture of an aromatic polycarboxylic acid and a fatty acid polycarboxylic acid with a mixture of an aliphatic polyol as a starting material; and B) a mixture of the above polycarboxylic acid with terephthalic acid, isophthalic acid and Sebacic acid in a total of 5
The mixture of the aliphatic polyol contains neopentyl glycol, ethylene glycol and 1,4-butanediol in the range of 0 to 100 mol% in a total of 50 to 100 mol%. . The molar ratio of polycarboxylic acid to polyol is theoretically 50:
50.

Such a polyester resin has particularly good compatibility with the amide type nonionic surfactant, and can contain a predetermined amount of the above surfactant without lowering the transparency of the toner receiving layer. Especially easy. Further, the storage elastic modulus at the fixing temperature is not sharply reduced, and the smoothness of the image surface due to the hot offset at the time of fixing the image is effectively prevented from lowering, and the lightness and chroma of the image are improved. In order to control the behavior of the storage elastic modulus at such a fixing temperature in a suitable range, the storage elastic modulus at 160 ° C. of the polyester resin should be in the range of 1 × 10 ⁴ to 1 × 10 ⁷ dyne / cm ^2. Is good. If it is 1 × 10 ⁴ dyne / cm ² or less, it may not be possible to prevent a decrease in the smoothness of the image surface due to hot offset, and conversely 1 × 10 ⁷ dyne / cm 2.
^If it exceeds ² , the sinking of the fixing toner particles into the receiving layer becomes poor, and there is a possibility that irregularities remain on the surface of the image. Particularly preferably, it is in the range of 5 × 10 ^{4 to} 5 × 10 ⁶ dyne / cm ² . The storage elastic modulus was measured by using a “disposable cup” having a diameter of 25 mmφ and a height of 5 mm as a sample holder, in a temperature step mode in which the measurement temperature was raised, and in a shear mode at a frequency of 100 rad / sec, by Rheometrics. The measurement was performed using "Dynamic Analyzer RDA" manufactured by Toshiba Corporation.

[Amide-type surfactant] The amide-type surfactant contained in the receptor layer functions as a compatibilizer between the resin of the toner and the light-transmitting resin of the receptor layer. It acts to enhance solubility and effectively enhance image quality. When a wax-containing toner is used,
It also acts to prevent crystal growth of wax bleed from the toner during fixing, to prevent cloudiness due to wax crystallization, and to prevent a decrease in image transparency.

The content of the amide type nonionic surfactant is usually 0.1 to 40 parts by weight, preferably 0.5 to 30 parts by weight, particularly preferably 0.5 to 30 parts by weight, based on 100 parts by weight of the light-transmitting resin in the receptor layer. It is preferably in the range of 1 to 20 parts by weight. If the content is too small, the compatibilizing action and the crystal growth inhibiting action may be reduced, while if it is too large, stickiness on the surface and blocking of the film may occur.

The amide type surfactant is a compound having an acid amide structure formed from a fatty acid and a hydroxyalkylamine such as a fatty acid hydroxyalkyl amide and a fatty acid hydroxy (polyalkylene) amide. Preferably, it is a fatty acid di-hydroxyalkyl amide. Such a compound can particularly enhance the compatibilizing action and the crystal growth inhibiting action. The alkyl group of the fatty acid di-hydroxyalkyl amide is an alkyl group having 1 to 10 carbon atoms such as methyl, ethyl, propyl and butyl. The preferred carbon number of the alkyl group is in the range of 2-8. If the carbon number is too high, the compatibilizing action may be reduced. Specific examples of particularly preferred fatty acid di-hydroxyalkyl amides include fatty acid diethanol amide. The number of carbon atoms in the alkyl group of the fatty acid moiety is usually 2 to 30, preferably 3 to 20, and particularly preferably 4 to 16. If the carbon number of the alkyl group in the fatty acid portion is too small or too large, the compatibilizing action and the crystal growth inhibiting action may be reduced.

[Other Additives] Antioxidants, inorganic particles, polymer particles, ultraviolet absorbers, etc. are contained in the toner receiving layer as long as the above properties such as transparency, elastic modulus and softening point are not impaired. Can be contained. Among them, preferred additives are ultraviolet absorbers. In recent years, toner particles have been miniaturized for the purpose of increasing the resolution and transparency of a toner image, but this also causes deterioration of the light fastness of the obtained image. However, by using the toner receiving layer of the present invention containing an ultraviolet absorber, the light resistance of an image to a light source for OHP or external light can be significantly improved. Generally, the ultraviolet absorber is used in an amount of 0.005 to 0.100 parts by weight based on 1.2 parts by weight of the resin used for the toner receiving layer.

[Thermoplastic Toner] The toner used for forming a toner image on the transparent film for image recording of the present invention is not particularly limited as long as it is a thermoplastic toner conventionally used in the field of electrophotographic image forming technology. . For example, a toner composed of a styrene / (meth) acrylic acid copolymer, a styrene / acrylate copolymer, a bisphenol A type epoxy resin and a polyester can be used. The average particle diameter is not particularly limited, but is preferably about 5 to 30 μm from the viewpoint of resolution. By using chromatic toners such as cyan, magenta and yellow,
A color toner image useful in the present invention is obtained.

As described above, the toner may contain wax for the purpose of preventing hot offset and the like. As the wax, ester wax, paraffin wax, polyolefin wax and the like can be used. Suitable waxes are ester waxes, especially those represented by the general structural formulas: The content of the wax is usually in the range of 5 to 40 parts by weight based on 100 parts by weight of the resin of the toner.

<General structural formula of ester wax> [R ₁ COO (CH ₂ ) _n ] _a C [(CH ₂ ) _m OCO
R _{2] b} (a and b is an integer of 0 to 4, are a + b = 4, R ₁ and R ₂ is an alkyl group having a carbon number of 1 to 40, and the R ₁ and R ₂ Carbon number difference is 10 or more,
m and n are integers from 0 to 15;
Never be. )

<General structural formula of ester wax> [R ₁ COO (CH ₂ ) _n ] _a C [(CH ₂ ) _m OH]
_b (a and b are integers from 0 to 4, a + b = 4, R ₁ is an alkyl group having 1 to 40 carbon atoms, m and n are integers from 0 to 15, and m and n does not become 0 at the same time.)

<General structural formula of ester wax> [R ₁ COO (CH ₂ ) _n ] _a CR ₃ [(CH ₂ ) _m O
COR ₂ ] _b (a and b are an integer of 0 to 3, a + b ≦ 3, R ₁ and R ₂ are an alkyl group having 1 to 40 carbon atoms, and R ₁ and R ₂ are Carbon number difference is 10 or more,
R ₃ is an alkyl group having 1 or more carbon atoms, m and n
Is an integer of 0 to 15, and m and n do not become 0 at the same time. )

<General structural formula of ester wax> R ₁ COOR ₂ (R ₁ and R ₂ are an alkyl group having 1 to 40 carbon atoms, and R ₁ and R ₂ may have the same or different carbon atoms. .)

<General structural formula of ester wax> R ₁ COO (CH ₂ ) _n OOCR ₂ (R ₁ and R ₂ are an alkyl group having 1 to 40 carbon atoms, n is an integer of 2 to 20, And R ₁ and R ₂ may be the same or different from each other.)

<General structural formula of ester wax> R ₁ OOC (CH ₂ ) _n COOR ₂ (R ₁ and R ₂ are an alkyl group having 1 to 40 carbon atoms, n is an integer of 2 to 20, And R ₁ and R ₂ may be the same or different from each other.)

[Method of Manufacturing Transparent Film for Image Recording] By laminating a toner receiving layer on a transparent substrate, the film for image recording of the present invention can be obtained. The lamination method is not particularly limited, and examples thereof include a method of applying a solution containing a resin or the like used for the toner receiving layer on a transparent substrate using a Meyer bar and drying the solution.

The thickness of the toner receiving layer is preferably in the range of 1 to 20 μm. If it is less than 1 μm, the desired effects (such as smoothing of the surface of the receiving layer after fixing the toner) cannot be sufficiently obtained.
If the thickness exceeds 0 μm, the light transmittance is impaired, which adversely affects the sharpness of the projected image.

After performing an easy adhesion treatment such as a corona discharge treatment and a primer coating treatment on the surface of the substrate which is in contact with the receiving layer,
It is preferred to stack a receiving layer. For example, a resin containing a chlorine atom-containing polymer such as polyvinylidene chloride and chlorinated polypropylene is applied as a primer. The thickness of the primer layer is usually in the range of 0.05 to 3 μm.

[Method of Manufacturing Image Recording Film] In order to form a clear image having excellent transparency on an image recording transparent film when projected using an OHP or the like, first, an image recording transparent film is used. An image is formed on a film by electrophotography. Of course, the image may be a color image or a black and white image. Next, the toner particles of the image are buried in the toner receiving layer by passing the image recording transparent film carrying the toner image through the fixing hot-press roller.

In the heating and pressing step, the toner receiving layer is softened or melted, but the resin of the receiving layer has a softening point lower than that of the toner used for image formation,
It is preferable that the degree of softening of the toner receiving layer is higher than the degree of melting (or softening) of the toner. Thereby, the toner particles pressed by the roller are effectively buried in the receiving layer, the space between the individual toner particles is filled with the softened toner receiving layer, and the surface of the image is effectively flattened. As a result, scattering of transmitted light is prevented, the transparency of the projected image is improved, and the brightness and the saturation are improved.

The temperature of the hot-press roller is preferably higher than the softening point of the toner receiving layer. When the temperature of the hot-press roller is lower than the softening point of the receiving layer, the toner particles are not buried in the toner receiving layer even when pressed by the roller, and the image surface is not sufficiently smoothed.

The present invention will be described in more detail with reference to the following Examples, but it should not be construed that the present invention is limited thereto. In addition, "part"
Are all based on weight.

Example 1 Table 1 parts by weight polyester resin (Elitel UE3250, manufactured by Unitika) 20.00 N, N-bis (2-hydroxymethyl) -N- (3'-dodecyloxy-2'-hydroxypropyl) Methylammonium methyl sulfate (Cyastat 609 manufactured by American Cyanamid) 0.10 Polystearyl methacrylate / hexanediol diacrylate beads (manufactured by 3M) 0.08 Fatty acid diethanolamide (manufactured by Daiichi Kogyo Seiyaku Co., Ltd., Dianol 300) 4.00 Toluene 40. 00 Methyl ethyl ketone 40.00 The receiving layer-forming resin was coated on one surface of a 125 μm-thick polyethylene terephthalate film previously coated with polyvinylidene chloride in a dry coating amount of 3.4 g / m ² using a Meyer bar. did. The coated solution was dried by holding at 80 ° C. for 2 minutes to form an image receiving layer. The used polyester resin has a measurement temperature of 1
The storage elastic modulus (G ′) at 60 ° C. and a frequency (W) of 100 rad / sec was 1 × 10 ⁶ dyne / cm ² . A color image was formed on the surface of the image receiving layer of the obtained transparent film for image recording using an electrophotographic image forming apparatus (CLC350, manufactured by Canon Inc.). Using Tokyo Denshoku's color analyzer "TC-1800MKII",
The lightness (L ^* ) and chroma (C ^* ) of the obtained image film were measured, and the transmission optical density of the obtained image film was measured using "Macbeth densitometer TR-924" manufactured by Macbeth. Table 2 shows the results.

Comparative Example 1 An image film was prepared and evaluated in the same manner as in Example 1 except that no fatty acid diethanolamide was used.
Table 2 shows the results. Table 2 Color Quality Transmission Optical Density Lightness Saturation Example 1 Yellow 0.93 84.18 66.57 Magenta 0.54 61.55 29.66 Cyan 0.85 63.89 45.07 Comparative Example 1 Yellow 0.91 81.42 63.54 Magenta 0.54 59.15 28.29 Cyan 0.86 62.26 44.64 From the results in Table 2, it can be seen that a color image with high lightness and high saturation is obtained.

Example 2 Table 3 parts by weight polyester resin (Elitel UE3250, manufactured by Unitika) 20.00 N, N-bis (2-hydroxymethyl) -N- (3'-dodecyloxy-2'-hydroxypropyl) Methyl ammonium methyl sulfate (Cyastat 609 manufactured by American Cyanamid) 0.10 Polystearyl methacrylate / hexanediol diacrylate beads (manufactured by 3M) 0.08 Fatty acid diethanol amide (manufactured by Daiichi Kogyo Seiyaku Co., Ltd., Dianol 300) 2.00 Toluene 40. 00 Methyl ethyl ketone 40.00 An image film was prepared in the same manner as in Example 1 except that a solution having a composition shown in Table 3 was used. A yellow image was formed using an electrophotographic printer (without using silicone oil) and an ester wax-containing toner, and evaluated. The obtained toner image is not offset,
It was a beautiful transparent image.

Comparative Example 2 An image film was prepared and evaluated in the same manner as in Example 2 except that the fatty acid diethanolamide was not used and the coating amount was 6.1 g / m ^{2 in a} dry coating amount. Table 4 Color Quality Transmitted Optical Density Brightness Saturation Example 2 Yellow 1.21 72.50 82.63 Comparative Example 2 Yellow 1.19 70.17 79.22 From the results in Table 4, a yellow image having higher brightness and saturation was obtained. It can be seen that is obtained.

Comparative Example 3 An image film was prepared and evaluated in the same manner as in Example 2 except that a resin having a high sharp melt property (“Atlac382E” manufactured by Reichhold Chemical) was used as the polyester resin. However, the film wrapped around the fixing roller and was offset. The polyester resin used had a storage elastic modulus (G ') of 8 × 10 ² dyne / cm ² at a measurement temperature of 160 ° C. and a frequency (W) of 100 rad / sec. Example 3 Table 5 parts by weight polyester resin (Nichigo Polyester WR-905, manufactured by Nippon Gohsei) 50.00 Polymethyl methacrylate beads (manufactured by 3M) 0.05 fatty acid diethanolamide (Daianol 300, manufactured by Daiichi Kogyo Seiyaku) 1.00 Pure water 50.00 Using a solution having the composition shown in Table 5, one surface of an OHP film (manufactured by Sumitomo 3M, TY-731) is dried with a Meyer bar to a dry coverage of 1.8 g / m ^2. Amount. The coated solution was dried by keeping it at 100 ° C. for 3 minutes to form an image receiving layer. A color image was formed on the surface of the image receiving layer of the obtained transparent film for image recording using an electrophotographic image forming apparatus (CLC350, manufactured by Canon Inc.) and evaluated. The color transmission coefficient of the obtained image film was measured using a haze meter “TC-HIII” manufactured by Tokyo Denshoku Co., Ltd. The color transmission coefficient was determined by the following equation. Color transmission coefficient = {(attenuation due to absorption) + (attenuation due to scattering)} / (attenuation due to absorption) (The color transmission coefficient = 1 is a lower limit without attenuation by scattering.) The results are shown in Table 6. .

Comparative Example 4 An image film was prepared and evaluated in the same manner as in Example 3 except that no fatty acid diethanolamide was used.
Table 6 shows the results. Table 6 Color Quality Transmission Optical Density Color Transmission Coefficient Example 3 Yellow 0.87 2.56 0.28 1.82 Magenta 0.65 1.39 0.25 1.38 Cyan 0.93 1.41 0.35 1 .47 Comparative Example 4 Yellow 0.90 4.07 0.30 2.05 Magenta 0.62 1.39 0.25 1.56 Cyan 0.94 1.53 0.35 1.60 From the results in Table 6, It can be seen that a color image having excellent color transparency was obtained.

Example 4 Table 7 parts by weight Polyester resin (Elitel UE3250, manufactured by Unitika Ltd.) 20.00 N, N-bis (2-hydroxymethyl) -N- (3'-dodecyloxy-2'-hydroxypropyl) Methyl ammonium methyl sulfate (Cyastat 609 manufactured by American Cyanamid) 0.10 Polymethyl methacrylate beads (manufactured by 3M) 0.10 Fatty acid diethanol amide (manufactured by Daiichi Kogyo Seiyaku Co., Ltd., Dianol 300) 1.00 Toluene 40.00 Methyl ethyl ketone 40.00 Both surfaces of a 125 μm-thick polyethylene terephthalate film previously coated with polyvinylidene chloride using a solution having the composition shown in Table 7 were coated using a Meyer bar at a dry coating amount of 1.8 g / m ² . The coated solution was dried by holding at 80 ° C. for 3 minutes to form an image receiving layer. Electrophotographic image forming apparatus (Hewlet
A color image was formed on the surface of the image receiving layer of the obtained transparent film for image recording by using CLJ5 manufactured by Packard and evaluated. Table 10 shows the results.

Example 5 Table 8 parts by weight Polyester resin (Elitel UE3250, manufactured by Unitika) 20.00 N, N-bis (2-hydroxymethyl) -N- (3'-dodecyloxy-2'-hydroxypropyl) Methyl ammonium methyl sulfate (Cyastat 609 manufactured by American Cyanamid) 0.10 Polymethyl methacrylate beads (manufactured by 3M) 0.10 Fatty acid diethanol amide (Dianol 300 manufactured by Daiichi Kogyo Seiyaku) 2.00 Toluene 40.00 Methyl ethyl ketone 40.00 An image film was prepared in the same manner as in Example 4 except that a solution having the composition shown in Table 8 was used, and a color image was formed. Table 9 shows the results.

Comparative Example 5 An image film was prepared and evaluated in the same manner as in Example 4 except that no fatty acid diethanolamide was used.
Table 9 shows the results. Table 9 Color Quality Transmission Optical Density Color Transmission Coefficient Example 4 Yellow 1.76 2.13 0.40 3.14 Magenta 0.98 1.21 0.16 1.80 Cyan 1.19 1.30 0.22 2 0.03 Example 5 Yellow 1.75 2.24 0.37 2.66 Magenta 0.97 1.23 0.15 1.68 Cyan 1.26 1.31 0.19 1.87 Comparative Example 5 Yellow 90 2.34 0.30 4.02 Magenta 0.62 1.29 0.25 2.29 Cyan 0.93 1.36 0.35 2.49 From the results shown in Table 9, a color image having excellent color transparency was obtained. It can be seen that is obtained.

Claims (3)

[Claims] An image recording transparent film having a transparent base material and a toner receiving layer provided on at least one main surface of the base material, wherein the toner receiving layer has a softening point of 90 to 180 ° C. A light-transmitting resin having a range of 0.1 to 40 parts by weight based on 100 parts by weight of the light-transmitting resin, and an amide-type nonionic surfactant in a state of being compatible with the light-transmitting resin. , A transparent film for image recording. 2. A step of forming a toner image by adhering a thermoplastic toner on the surface of the toner receiving layer of the transparent film for image recording according to claim 1; While heating at a temperature higher than the softening point of the resin, the toner is buried in the toner receiving layer by pressing toward the toner receiving layer, and the toner image is formed as a light-transmitting image on the image recording transparent film. Forming a surface of the material;
Manufacturing method of image recording film. 3. An image recording film manufactured by the method according to claim 2, wherein the thermoplastic toner contains a wax.