JPH03291661A - Photosensitive and thermosensitive recording material - Google Patents

Abstract

PURPOSE:To record a high-quality color image on a plain paper by incorporating porous microcapsules of the color dyes in the photo- and thermosensitive recording material, imagewise exposing it to selectively harden the microcapsules, overlaying the material on the high-quality plain paper, Transferring the dyes in the unhardened microcapsules to the paper by using a thermal head, heating rollers, or the like. CONSTITUTION:The photo-and thermosensitive recording material 11 imagewise exposed to visible light is overlaid on the receiving paper 13 so as to bring the porous microcapsule layer 9 of the material 11 into contact with the paper 13, and heat is applied from the rearside of the layer 9 by using the thermal head, thecolor dyes 7a - 7c in the unexposed and unhardened microcapsules 6a - 6c permeate the pores of the shells of the microcapsules onto the paper 13, thus permitting the color developed parts corresponding to image signals to be obtained and a high-quality color image to be formed on the plain paper.

Description

[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a light and heat sensitive recording material, and in particular, it is possible to record a high quality color image on plain paper using a simple developing method, and the manufacturing method is simple. This invention relates to light and heat sensitive recording materials.

[Summary of the invention]

In recent years, with the development of the information industry, there has been a growing demand for image recording to obtain color recording from information equipment terminals in a simple manner.

In the present invention, a polymerizable monomer and a photopolymerization initiator and a dye that initiate the polymerization of the polymerizable monomer by visible light energy are included as main components on a support, and the portion irradiated with light is cured. The unexposed areas are then thermally exposed by forming a latent image using visible light using a light- and heat-sensitive recording material provided with a microcapsule layer containing porous microcapsules whose contents can be released by application of heat. The object of the present invention is to provide a light and heat sensitive recording material which can be produced by a simple method and can produce a high quality color image by transferring the dye onto plain paper using a head, heat roller or the like.

[Conventional technology]

Conventional thermal transfer sheets are generally thermal transfer sheets in which a heat-melt ink containing a colorant dispersed in a heat-melt binder is coated on a support made of a resin film such as polyethylene terephthalate (PET). However, with such thermal transfer recording sheets, the heat-melting ink in the heated areas melts and peels off from the support, so only binary recording is possible and gradation is possible. In some cases, an area modulation method such as a dither method or a density pattern method is used.

In addition, the electrophotographic color recording method uses a photoreceptor,
Complex elements such as a charging device, a photosensitive device, and each color of toner must be incorporated into a single device, and multiple processes must be repeated.

Furthermore, in the recording method using microcapsules, Japanese Patent Application Laid-open No. 58-88739.5B-17432,
4, 58-23025, etc., there is a method of curing microcapsules with light and using pressure to destroy the microcapsules and release the dye precursor contained therein. Because of this, it was necessary to coat the receiving paper with a color developer that reacts with the dye precursor to develop color, making it impossible to record color images on plain paper. Furthermore, many of the photopolymerization initiators that initiate polymerization are water-soluble dyes, which makes it difficult to form emulsions when manufacturing microcapsules, and it is necessary to form complex complex salts to make them insolubilized. Ta.

[Problem to be solved by the invention]

As mentioned above, when expressing gradation with thermal transfer sheets, it is done using the area gradation method, which not only requires complex signal processing but also reduces resolution.
It was not possible to record high-quality images.

In addition, with electrophotography, the equipment becomes complicated and large.
The recording energy consumed also increased, making it impossible to easily record color images.

Furthermore, in the recording method using microcapsules, a very large pressure is required to destroy the microcapsules during the development process, making the apparatus complicated.

Furthermore, since a large pressure is used, not only the apparatus but also the recording material such as receiving paper on which the image is formed are limited, making it impossible to easily record color images. Furthermore, the receiving paper on which the image is formed must be a special paper coated with a color developer that reacts with a dye precursor to develop color, making it impossible to easily record a color image.

Furthermore, when producing microcapsules using a water-soluble photopolymerization initiator, the method for producing the microcapsules is limited, or complex salts must be formed to make them insoluble.

SUMMARY OF THE INVENTION In order to overcome these conventional drawbacks, it is an object of the present invention to provide a light- and heat-sensitive recording material that can produce continuous-tone, high-quality color images in a simple manner.

(Means for Solving the Problems) In order to solve the above-mentioned problems, the present invention provides polymerizable monomers and polymerizable monomers on a support of a heat-resistant film of about 10 μm made of polyethylene terephthalate (PET). A photopolymerization initiator that is initiated by visible light energy of 580 to 780 nm, especially a hydrophobic sensitizer that has at least one type of long-chain alkyl group (C8 to C20) in the molecule, and a polymerization initiating species. A blue porous microcapsule encapsulating a polymerization initiating species generator and a blue dye precursor as main components, a polymerizable monomer, and photopolymerization initiation in which polymerization of the polymerizable monomer is initiated by visible light energy of 460 to 620 nm. agent,
In particular, the main components include a hydrophobic sensitizer that has at least one type of long-chain alkyl group (C8 to C20) in the molecule, a polymerization initiation species generator that generates polymerization initiation species, and a red dye precursor. Red porous microcapsules, polymerizable monomers, and polymerization of the polymerizable monomers at 380-5
A photopolymerization initiator initiated by the optical energy of 20 nm visible light, especially a long-chain alkyl group (C8-C2
At least two or more kinds of yellow porous microcapsules containing as main components a polymerization species generator that generates a polymerization initiating species, a hydrophobic extender having at least 111 M of 0), and a yellow dye precursor. A containing microcapsule layer was provided.

[For production]

Each photosensitive wavelength of the porous microcapsules of each color of the light and heat sensitive recording material obtained as above (580 to 7800 nm for blue porous microcapsules, 460 to 620 nm for red porous microcapsules, 460 to 620 nm for yellow porous microcapsules) In the case of microcapsules, light of 380 to 520 nm) is irradiated according to the image signal, and the porous microcapsules of each color in the irradiated portion of each photosensitive wavelength are cured in accordance with each photosensitive wavelength. Further, in the unexposed portions of the porous microcapsules of each color, the inclusions can be released by passing through the pores of the film of the porous microcapsules by applying heat.

Furthermore, by controlling the irradiation intensity of light of each photosensitive wavelength, the degree of polymerization of the polymerizable monomer can be controlled, and the amount of released substances contained in the porous microcapsules can be controlled. The dyes of each color in the contents of the porous microcapsules of each color released in this way are transferred onto plain paper using a thermal head, a heat roller, etc., and a high-quality color image is recorded on the plain paper. Can be done.

Furthermore, since the photopolymerization initiator itself is hydrophobic, the method for producing porous microcapsules is not limited and can be produced by a simple method.

Hereinafter, the present invention will be explained based on the drawings.

FIG. 1 shows a schematic diagram of the porous microcapsule of the present invention. The porous microcapsule 1 is a porous membrane having many pores, and the contents contained in the porous microcapsule can be released by heat stimulation.

The sensitizer 3 in the porous microcapsule 1 absorbs the photosensitive wavelength and reacts with the polymerization initiating species generator 4 to generate a polymerization initiating species that polymerizes the polymerizable monomer 5. Polymerize and harden. Furthermore, since the degree of polymerization can be controlled by the energy of the photosensitive wavelength, the amount of inclusions released from the porous microcapsules due to heat can be controlled by the degree of polymerization.

FIG. 2 shows a schematic diagram of the light and heat sensitive recording material of the present invention. The support 11 is made of a heat-resistant resin film of about 10 μm such as polyethylene terephthalate (PET). A configuration in which porous microcapsules N9 containing porous microcapsules 5a, 6b, and 6c of respective colors containing sensitizers 8a, 8b, and 8c that are sensitive to visible light of different wavelengths are provided on this support. It has become.

FIGS. 3(a) and (bl) are schematic diagrams of color transfer recording using the light and heat sensitive recording material 11 shown in FIG.
Or the wavelengths of λ1, λ2, λ3 from the lamp (λ1
: 580-780 nm, λ2: 460-620 nm,
When irradiated with light of λ3: 380 to 520 nm,
The porous microcapsules 6a, 6b, and 6c of each color in the porous microcapsule layer are cured depending on the respective wavelengths. The heat-sensitive photosensitive recording material 11 on which a latent image has been formed with visible light is placed between the receiving paper 16 and the light-sensitive thermosensitive recording material 1.
The porous microcapsule layers 9 of the light and heat sensitive recording material 11 are aligned so that they face each other, and heat is applied from the back side of the porous microcapsule layer 9 of the photosensitive and thermosensitive recording material 11 using a thermal head 14 or the like to form uncured porous microcapsules of each color. The dyes 7a, 7b, and 7c of each color in the capsules 6a, 6b, and 6c pass through the pores of the film of the porous microcapsule, and form colored portions 15a, 15 of each color on the receiving paper 13 in accordance with the image signal.
b and 15c are transferred, and a color image can be recorded.

Examples of the present invention are shown below, but the present invention is not limited thereto.

Example 1 (Synthesis of raw materials for a sensitizer having a long-chain alkyl group) (1) p
-28.2 g of fluoronitrohenzene (C,2mo
1) was dissolved in 300 ml of tetrahydrofuran, and 56.4 g of N,N-octadecylmethylamine (
C, 2 mol) and triethylagon 20.3 g <
A solution of 0.2 mo +) in 3=1 l - 1200 ml of tetrahydrofuran is soaked under stirring. After the dropwise addition is completed, the mixture is heated under reflux for four days. The solution was concentrated, crystallized from ethyl alcohol and water, and N
, N-octadecylmethyl p-nitroaniline 60.6
g (C, 15m.

l> was obtained.

60.6 g (C, 15 mol) of this N,N-octadecylmethyl-p-nitroaniline was dissolved in 500 ml of ethyl alcohol, and 100 ml of 2N hydrochloric acid was added thereto. Furthermore, 48°8g of zinc powder (C,75mo+
) and heated under reflux for 1 hour to obtain 52.5 g of N,N-octadecylmethyl-p-phenylenecyamine (C,13
mol) was obtained.

(2) 92g of 14% hexane solution of n-butyllithium
23.6 g of N-methylaniline in (C, 2mo I)
(C, 22 mol) was added dropwise and stirred for 10 to 20 minutes. To this, octadecyl bromide 33.3
g (C, 1 mol) was soaked under stirring. After this about 1
The mixture was heated under reflux for 7 hours, cooled to room temperature, and water 2 (10 ml) was added. This was extracted with 300 ml of diethyl ether, concentrated, and 6N hydrochloric acid solution was added to precipitate. This precipitate was crystallized with ethyl alcohol and water. and refine it into N,
N-methyloctadecylaniline 32.3g (C°09
mo+) was obtained. 32.3 g of the obtained N,N-methyloctadecylaniline (C, 09m).

1) was dissolved in 250 ml of concentrated sulfuric acid, and immersed in 30 ml of concentrated nitric acid while stirring in a water bath. Approximately 1 hour after completion of dripping 1
This solution was added to ice water in step 1, and the precipitate was collected by filtration, crystallized from ethyl alcohol and water, and purified. This gives N, N-octadecyl-〇-nitroaniline 14.5
g (C,036mol) was obtained. 14.5 g of this N,N-octadecylmethyl 0-nitroaniline (C,0
36 mo1) was dissolved in 200 ml of ethyl alcohol, and 100 ml of 2N hydrochloric acid was added thereto. Furthermore, 11.75 g (C, 18 mol) of zinc powder was added, and the mixture was heated under reflux for 1 hour to obtain 11.7 g (C, 031 mo 1) of N,N-octadecylmethyl 0-phenylenecyamine.

(Blue sensitizer with long chain alkyl group) N,N-octadecylmethyl-p-phenylenecyamine Log (27mm01) obtained as above was dissolved in 100ml of ethyl alcohol, and 3N hydrochloric acid Added 50ml. A solution of 8.1 g (27 mmol) of sodium dichromate dissolved in 10 ml of water was added dropwise to the mixture while stirring and bubbling hydrogen sulfide gas, and the mixture was stirred for about 6 hours.

This solution was added to ice water in Step 11, and the precipitate was collected by filtration. This precipitate was purified using column chromatography using butyl alcohol, and 3.7-bis(octadecylmethylaξ
)) Phenothiazonium chloride 2 g (2,63
mmo I) was obtained.

(Red sensitizer having a long-chain alkyl group) N,N-octadecylmethyl-p-phenylenecyamine]Og (27 mmol) obtained as above was dissolved in 100 ml of ethyl alcohol, and 3N 50ml of hydrochloric acid was added. While stirring, add 4 g of sodium dichromate (13
, 4 mmol) was added dropwise. After this, aniline 1.25
g (13.5 mmol) was added, and further 4 g (13.4 mmol 1) of sodium chromate under stirring was added. This solution was added to ice water in Step 11, and the precipitate was collected by filtration.

This precipitate was purified by developing with butyl alcohol using column chromatography, and 3.7-di(octadecylmethylamino))-5-phenylzenazinium chloride 2.2
g (2.7mm.

1) was obtained.

(Yellow sensitizer having a long chain alkyl group) 10 g (27 mmol) of N,N-octadecylmethyl-〇-phenylenecyan obtained as above was dissolved in 100 ml of ethyl alcohol, and 1.24 g of formic acid ( 13.5mm
l) and 2.48 g of glycerol (13,5 mm
1.32 g (13.5 mmol) of concentrated sulfuric acid was added to the mixture, and the mixture was heated and stirred for about 5 hours. To this was added 5Qml of 2N hydrochloric acid, heated and stirred, and concentrated. This was purified by developing with butyl alcohol using column chromatography to obtain 2.2 g (2.5-8 mmol) of 3.6-di(octadecylmethylacrylate)-acridine chloride.

(Porous Microcapsules) 1.4 parts by weight of Crystal Violet as a dye was dispersed for 24 hours in 25 parts by weight of trimethylolpropane triacrylate (TMPTA) using a ball mill. Apart from this, a porous microcapsule membrane monomer A (hexamethylene diisocyanate) (HMDA) 5
0.03 parts by weight of 3,7-bis(octadecylmethylaξ))phenothiazonium chloride as a sensitizer
Parts by weight and 061 parts by weight of N-phenylglycine as a polymerization initiating species generator were mixed with N,N,-dimethylforma straw (
DMF) was dissolved in 1 part by weight and added to a dispersion in which a dye had been dispersed using a ball mill to obtain a porous microcapsule enclosing liquid. 3% of this porous microcapsule encapsulating liquid
(W/W) polyvinyl alcohol (Tararebovar 2
24) Add to the aqueous solution and emulsify and disperse using a homogenizer.

This emulsified dispersion was stirred with a mechanical stirrer, mixed with porous microcapsule membrane monomer B, 2.93 parts by weight of 16 diethylene trichloride was added, and aged with stirring for 1 hour to form a porous microcapsule membrane. Porous microcapsules were obtained by formation and filtration.

(Photosensitive and thermosensitive recording material) 5 parts by weight of the porous microcapsules obtained as described above were dispersed in 20 parts by weight of a 5% (W/W) polyvinyl alcohol (Kuraray Bovar 117) aqueous solution, and 8 μm polyethylene as a support was dispersed. It was coated onto terephthalate (PET) using a bar coater to obtain a light and heat sensitive recording material.

The light and heat sensitive recording material obtained as above and 40 g
Color images were obtained as follows using high quality paper of 1/m''.

The light and heat sensitive recording material was irradiated with light from a 300 W xenon short arc lamp through an ultraviolet cut filter for 1 minute to form a latent image. The porous microcapsule layer of the light- and heat-sensitive recording material on which the latent image had been formed was placed face-to-face with high-quality paper, and the image was developed by transferring color from the back side of the light- and heat-sensitive recording material using a thermal printer recording device.

As a result, photo- and heat-sensitive recording materials can form latent images using visible light and develop using heat, and can also control continuous gradation expression based on light irradiation intensity, making it possible to easily create high-quality images on high-quality paper. I was able to get it in a certain way.

Example 2 (Blue porous microcapsules) 1.4 parts by weight of cyan dye was mixed with trimethylolpropane triacrylate (TMPTA) 2 using a ball mill.
It was dispersed in 5 parts by weight for 24 hours.

Separately, 5 parts by weight of hexamethylene diisocyanate (HMDA) was used as the porous microcapsule membrane monomer A, and 0 parts of 3.7-bis(octadecylmethylaξ))phenothiazonium chloride was added as a blue sensitizer. .0
3 parts by weight and 0.1 part by weight of N-phenylglycine as a polymerization initiating species generator were mixed with N,N,-dimethylformamide (
DMF) was dissolved in 1 part by weight and added to a dispersion containing dyes of seven colors using a ball mill to obtain a porous microcapsule enclosing liquid A. This porous microcapsule enclosing liquid A was added to a 3% (W/W) aqueous solution of polyvinyl alcohol (Tararebovar 224) and emulsified and dispersed using a homogenizer. While stirring this emulsified dispersion with a mechanical stirrer, 2.93 parts by weight of diethylenetriamine was added as porous microcapsule membrane monomer B.
Aging with stirring was performed for 1 hour to form a porous microcapsule membrane, and blue porous microcapsules were obtained by filtration.

<Red porous microcapsules> 1.4 parts by weight of magenta dye was mixed with trimethylolpropane triacrylate (TMPTA) using a ball mill.
It was dispersed in 25 parts by weight for 24 hours.

In addition, 5 parts by weight of hexamethylene diisocyanate (HMDA) as a porous microcapsule membrane monomer A, and 0 parts of 3,7-di(octadecylmethylaξ)〉-5-phenylzenazinium chloride as a red sensitizer.
．． 03 parts by weight and polymerization amount 19 0.1 part by weight of N-phenylglycine as a starter generator was dissolved in 1 part by weight of N,N,-dimethylformamide (DMF), and the mixture was first milled into a magenta color using a ball mill. A porous microcapsule encapsulating liquid B was prepared by adding the dye to the dispersion liquid containing the dye. This porous microcapsule-enclosed liquid B is
% (W/W) polyvinyl alcohol (Tararebovar 224) aqueous solution and emulsified and dispersed using a homogenizer. This emulsified dispersion was stirred with a mechanical stirrer, 2.93 parts by weight of diethylenetriane was added as porous microcapsule membrane monomer B, and aged with stirring for 1 hour to form a porous microcapsule membrane. , red porous microcapsules were obtained by filtration.

(Yellow porous microcapsules) 1.4 parts by weight of a yellow dye was added to trimethylolpropane triacrylate (TMPTA) using a ball mill.
It was dispersed in 25 parts by weight for 24 hours.

In addition, 5 parts by weight of hexamethylene diisocyanate (HM0-DA) as porous microcapsule membrane monomer A, and 0.0 parts of 3.6-di(octadecylmethylaξ))-acridine chloride as a yellow sensitizer.
3 parts by weight and 0.1 part by weight of N-phenylglycine as a polymerization initiating species generator.

- A solution dissolved in 1 part by weight of dimethylformamide (DMF) was added to a dispersion containing a yellow dye using a ball mill to obtain a porous microcapsule encapsulating solution C.

3% (W/W) of this porous microcapsule encapsulating liquid C
The mixture was added to an aqueous solution of polyvinyl alcohol (Tararebovar 224) and emulsified and dispersed using a homogenizer. This emulsified dispersion was stirred with a mechanical stirrer, 2.93 parts by weight of diethylenetriane was added as porous microcapsule membrane monomer B, and aged with stirring for 1 hour to form a porous microcapsule membrane. , Yellow porous microcapsules were obtained by filtration.

(Photosensitive and thermosensitive recording material) 5 parts by weight of the porous microcapsules of each color obtained as described above were dispersed in 20 parts by weight of 5% (W/W) volivinyl alcohol (Kuraray Boval 117) aqueous I-liquid and supported. The material was coated on polyethylene terephthalate (PET) having a thickness of 8 μm using bar caulk to obtain a light- and heat-sensitive recording material.

The light and heat sensitive recording material obtained as above and 40 g
Color images were obtained as follows using high quality paper of 1/m''.

Light from a 300 W xenon short arc lamp is applied to the light and heat sensitive recording material using an optical filter that transmits 650 nm light for the blue porous microcapsules, and a 550 nm light transmittance for the red porous microcapsules. Optical Filter The yellow porous microcapsules were subjected to spectroscopy using an optical filter that transmits light of 450 nm according to the color image, and was irradiated for 1 minute to form a latent image. The porous microcapsule layer of the light- and heat-sensitive recording material on which this latent image has been formed is placed face-to-face with the high-quality paper, and a thermal head printing device is used from the back side of the light- and heat-sensitive recording material to transfer and develop the color image onto the high-quality paper. It was developed.

As a result, photosensitive and thermosensitive recording materials can control color separation based on photosensitive wavelength and continuous gradation expression based on light irradiation intensity.
High-quality color images could be obtained on plain paper using a simple method.

〔Effect of the invention〕

As described above, the present invention provides a polymerizable monomer and a photopolymerization initiation method in which polymerization of the polymerizable monomer is initiated by visible light energy on a support of a heat-resistant film of about 10 μm made of polyethylene terephthalate (PET). In particular, different porous microcapsules containing at least one type of long-chain alkyl group (C8 to C20) in the molecule and containing a hydrophobic sensitizer, a polymerization initiating species generator, and a dye as main components. By using a light and heat sensitive recording material provided with a microcapsule layer containing at least two types of microcapsules, by irradiating visible light of each photosensitive wavelength according to an image signal, porous micro-capsules of each color are formed in the irradiated area of each photosensitive wavelength. The capsules harden in response to each sensitive wavelength. Further, in the unexposed portions of the porous microcapsules of each color, the inclusions can be released by passing through the pores of the film of the porous microcapsules by applying heat. Furthermore, by controlling the irradiation intensity of light of each photosensitive wavelength, the degree of polymerization of the polymerizable monomer can be controlled, and the amount of released substances contained in the porous microcapsules can be controlled.

The dyes of each color in the contents of the porous microcapsules released in this way are transferred and colored onto high-quality paper as a receiving paper using a thermal head, heat roller, etc., and a high-quality color image is received. It is possible to provide a light and heat sensitive recording material that can be recorded on paper.

Furthermore, since the photopolymerization initiator itself is hydrophobic, the method for producing porous microcapsules is not limited and can be produced by a simple method.

[Brief explanation of drawings]

FIG. 1 shows a schematic diagram of the porous microcapsule of the present invention, and FIG. 2 shows a schematic diagram of a light and heat sensitive recording material using the porous microcapsule of FIG. Further, FIG. 3 shows a schematic diagram of color transfer recording using the light and heat sensitive recording material shown in FIG. 1... Porous microcapsules 2... Dye 3... Sensitizer 4... Polymerization initiating species generator 5... Polymerizable monomer 6a... Porous microcapsules sensitive to wavelength λ1 6b... Porous microcapsules 6c sensitive to wavelength λ2...Porous microcapsules 7a sensitive to wavelength λ3...Cyan dye 7b...Magenta dye 7C...Yellow dye 8a...Sensitizer sensitive to wavelength λ1 8b...Sensitizer sensitive to wavelength λ2 8c...Sensitizer sensitive to wavelength λ3 9 ・ ・ 10 ・ ・ 11 ・ ・ 12a ・ 12b ・ 12C ・ 13 ・ ・ 14 ・ ・ 15a ・ 15b ・ 15C ・ ・Porous Microcapsule layer, support, photosensitive and thermosensitive recording material, cured porous microcapsules sensitive to wavelength λ1, cured porous microcapsules sensitive to wavelength λ2, cured porous microcapsules sensitive to wavelength λ3, receiving paper, thermal hend heating body, cyan transfer area, magenta transfer area, yellow transfer area and above

Claims (5)

[Claims] (1) A polymerizable monomer on a support, a photopolymerization initiator that initiates polymerization of the polymerizable monomer using visible light energy, and a long-chain alkyl group (C8-C
20) containing a hydrophobic sensitizer, a polymerization initiating species generator, and a dye as main components,
The areas irradiated with light harden, and the unexposed areas can release inclusions through the porous pores of the film by applying heat. Furthermore, polymerization of the areas irradiated with light occurs depending on the intensity of light irradiation. 1. A photosensitive and thermosensitive recording material, characterized in that it is provided with a microcapsule layer containing porous microcapsules whose degree of polymerization can be controlled by controlling the degree of polymerization, thereby controlling the release amount of inclusions. (2) The photopolymerization initiator has a long chain alkyl group (C8 to C20) in the molecule that undergoes a chemical change due to light energy.
It consists of a hydrophobic sensitizer that has at least one type of sensitizer, and a polymerization initiation species generator that reacts with the chemically changed sensitizer to generate polymerization initiation species, and has a photosensitive wavelength of 580. The light and heat sensitive recording material according to claim 1, characterized in that a blue polymerization initiator with a wavelength of 780 nm is used. (3) The photopolymerization initiator has a long chain alkyl group (C8 to C20) in the molecule that undergoes a chemical change due to light energy.
It consists of a sensitizer that is hydrophobic and has at least one type of sensitizer, and a polymerization initiation species generator that reacts with the chemically changed sensitizer to generate polymerization initiation species, and has a photosensitive wavelength of 460. The light and heat sensitive recording material according to claim 1, characterized in that a red polymerization initiator with a wavelength of 620 nm to 620 nm is used. (4) The photopolymerization initiator has a long chain alkyl group (C8 to C20) in the molecule that undergoes a chemical change due to light energy.
It consists of a sensitizer that is hydrophobic and has at least one type of sensitizer, and a polymerization initiation species generator that reacts with the sensitizer that has undergone a chemical change to generate polymerization initiation species, and has a photosensitive wavelength of 380. The light and heat sensitive recording material according to claim 1, characterized in that a yellow polymerization initiator with a wavelength of 520 nm to 520 nm is used. (5) The photopolymerization initiator has a long chain alkyl group (C8 to C20) in the molecule that undergoes a chemical change due to light energy.
It consists of a hydrophobic sensitizer that has at least one type of sensitizer, and a polymerization initiation species generator that reacts with the chemically changed sensitizer to generate polymerization initiation species, and has a photosensitive wavelength of 580. ~780nm blue polymerization initiator, sensitive wavelength 4
Red polymerization initiator of 60-620 nm, photosensitive wavelength 380-
2. The light and heat sensitive recording material according to claim 1, which is a yellow polymerization initiator with a wavelength of 520 nm and contains at least two or more types of different porous microcapsules each separately containing a polymerization initiator with a different photosensitive wavelength. .