JPH0768802A - Evaporating or sublimating device of recording material, recording method and recording device - Google Patents

Abstract

PURPOSE:To contrive an improvement in thermal efficiency, miniaturization and a reduction in weight, by a method wherein a layer of a hot-melt recording material facing on a recorded body through a gap is evaporated and sublimated by heating the layer selectively and a circumferential space is kept vacuous by filling the circumferential space with a substance having a lower thermal conductivity than that of air. CONSTITUTION:Pieces of recorded paper 50 are separated piece by piece and supplied to a space between a plane base 4 and head part (recording part) 10. Then in the head part 10, semiconductor laser chips 18 for three colors (Y, M, C) are juxtaposed in numbers of pieces by amount of pixels in three rows. Then after solid and powdery sublimating dyes 12 within solid dye holding tanks 11 each are melted (liquefaction) by a heater 16, those liquid sublimating dyes 12' are supplied to glass beads 22 within an evaporation hole 17a in evaporation parts 17 each by a fixed quantity by making use of a capillarity of liquid dye holding tanks 15 each. On the one hand, laser beams L generated by semiconductor laser chips 18 each are coverted into heat by beam and heat converting layers 21 each. Hereby, the liquid sublimating dyes 12' are evaporated and transferred to an image receiving layer 50a of the recorded layer 50.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a recording material vaporization or sublimation device, a recording method and a recording device.
The present invention relates to a recording material vaporization or sublimation apparatus suitable for thermal recording, a recording method using the recording material vaporization or sublimation apparatus, and a recording apparatus including the recording material vaporization or sublimation apparatus.

[0002]

2. Description of the Related Art In recent years, as colorization of image recording in video cameras, televisions, computer graphics, etc. has progressed, the need for colorization of hard copy has been rapidly increasing. In response to this, various types of color printers have been developed and are being developed in various fields.

Among these recording methods, an ink sheet in which an ink layer in which a high-concentration transfer dye is dispersed is applied to an appropriate binder resin, and an image printed with a dyeing resin that receives the transferred dye is printed. A transfer dye corresponding to the amount of heat applied from the ink sheet to the image receiving layer by applying heat according to the image information from the thermal recording head located on the ink sheet, by making a transfer target such as paper adhere closely under a constant pressure. There is a method of thermal transfer.

The above operation is repeated for each of the image signals decomposed into three primary colors of subtractive color mixture, that is, yellow, magenta, and cyan, to obtain a full-color image having continuous gradation, so-called thermal transfer. The method has been attracting attention as an excellent technology for obtaining high-quality images that are comparable to silver salt color photographs because they are compact, easy to maintain, and have immediacy.

FIG. 17 is a schematic front view of a main part of such a thermal transfer type printer.

A thermal recording head (hereinafter referred to as a thermal head) 61 and a platen roller 63 face each other, and an ink sheet 62 having an ink layer 62a provided on a base film 62b and a paper 70b are dyed between them. The recording paper (transferred material) 70 provided with the resin coating layer 70a is sandwiched, and these are pressed against the thermal head 61 by the rotating platen roller 63 and run.

The ink (transfer dye) in the ink layer 62a selectively heated by the thermal head 61 is
The thermal transfer recording is performed by transferring the dots to the dyeing resin layer 70a of the transfer target 70. For such thermal transfer recording, a line system in which a long thermal head is fixed and arranged at right angles to the recording paper running direction is generally used.

However, this method has the following drawbacks.

The ink sheet, which is the ink supply body, is a one-time disposable, and this becomes a large amount of waste generated during printing, which is a problem in resource saving and environmental protection.

A means for obtaining a full-color image by using an ink sheet multiple times for the purpose of reducing waste has been proposed. However, since the transfer dye layer and the transfer target are in contact with each other, when the transfer dye A is first transferred to the transfer target and then the transfer dye B is superimposed and transferred, the transfer dye on the transfer target is reversed. A is reversely transferred to the transfer dye B layer of the ink sheet to contaminate the transfer dye B. Therefore, the print quality of the second and subsequent sheets deteriorates.

Since the ink sheet occupies a large volume, there is a limit to reducing the size and weight of the printer device.

The so-called thermal transfer system is actually a transfer mechanism utilizing the thermal transfer phenomenon of dyes. Therefore, in order for the dye to diffuse into the image receiving layer of the transferred material, the image receiving layer also needs to be sufficiently heated, resulting in poor thermal efficiency.

In order to transfer efficiently, it is necessary to press the ink sheet and the transferred material with a high pressure. Therefore, the printer needs to have a strong structure, and there is a limit to reduction in size and weight of the printer device.

As described above, the so-called thermal transfer system has a number of drawbacks. Therefore, there has been a strong demand for a technique for reducing the size and weight of a printer by reducing waste and transfer energy without losing the above advantages.

[0015]

SUMMARY OF THE INVENTION The present invention has been made in view of the above circumstances and ensures high-quality recording, high thermal efficiency, easy miniaturization and lightweight, and An object of the present invention is to provide a recording apparatus and a recording method that do not generate waste such as used ink sheets.

[0016]

As a result of earnest research, the present inventor has succeeded in developing the following recording system as a thermal recording system which meets the above-mentioned requirements, and has completed the present invention.

In the above method, a minute gap is provided between a recording portion having a heat-fusible dye layer and a recording medium having an image receiving layer for receiving a dye, which opposes a suitable heating such as a thermal head or a laser. A thermal recording method is conceivable in which the dye on the recording portion is selectively vaporized or sublimated by a means to move in the void and an image having continuous gradation is obtained on the recording medium. This operation is performed by subtracting the three primary colors of yellow, magenta,
By repeating each of the image signals decomposed into cyan, full color can be achieved.

In this system, the dye lost during recording is
Since it contains almost no binder resin, by flowing only the lost part from the dye reservoir to the transfer part in the molten state,
Alternatively, it can be continuously applied to an appropriate substrate, and the substrate can be continuously supplied to the recording unit by moving to the recording unit. Therefore, the problem that the recording unit can be used many times in principle can be solved.

Further, since the dye layer and the recording medium do not come into contact with each other, the problem that the recording dye that has already transferred to the recording medium reversely transfers to a different recording dye layer and the image is damaged is solved, and at the same time, the dye supply is small. Since the volume of the dye reservoir is used and the ink sheet is not used, the size and weight of the printer can be reduced.

Furthermore, since this recording system is a recording mechanism utilizing the vaporization or sublimation phenomenon of the dye, it is not necessary to heat the image receiving layer of the recording medium, and the ink sheet and the transfer medium can be heated with high pressure. There is no need to press it. Therefore,
The problem of is solved. Since the recording medium and the recording medium do not come into direct contact, thermal fusion between the recording unit and the recording medium cannot occur in principle, and even if the compatibility between the dye and the image receiving layer resin is small. It can be recorded. Therefore, the range of design and selection of the dye and the image-receiving layer resin is significantly expanded.

As a heating means of this system, there is a method of combining a laser beam and a material (photothermal converter) having an absorption ability in a region including a wavelength region of the laser beam and converting light energy into heat energy. In this case, since the laser beam is used, the resolution is remarkably improved, and by increasing the laser beam density in the optical system, it becomes possible to perform intensive heating and the ultimate temperature is increased. As a result, thermal efficiency is improved.

However, since the photothermal converter continuously absorbs the laser light of light energy, it is necessary to satisfy the heat resistance. Therefore, as the photothermal converter of this method, a metal thin film such as cobalt or nickel-cobalt alloy deposited on a polyimide film is used, and a dye having excellent heat resistance and an absorption ability in the wavelength region of the laser light used. Alternatively, the pigment may be used by uniformly dispersing it in the recording dye.

In this type of recording mechanism, since the vaporization or sublimation phenomenon of the dye is used, the recording amount almost depends on the temperature. By the way, when a certain amount of heat is applied to the recording unit by a suitable heating means, the maximum temperature reached is the rate at which the recording unit and the inside of the recording unit heat up, and the amount of heat is lost due to conduction, convection or radiation outside the recording unit system. It is determined by the balance of speed. Therefore,
The lower the speed at which the amount of heat is lost to the outside of the system, the higher the temperature reached by the recording section and the higher the recording efficiency. That is, if the space between the recording portion, which is a high heat source, and the outside, which is a low heat source, is made of a material having a small thermal conductivity, the speed at which heat escapes becomes low.

Therefore, normally, the heat release of the recording unit is reduced by covering the recording unit with air or a structure containing a large amount of air. Specifically, the most effective means is to fix the recording part in a space with a thin support or to enclose the recording part with a porous material such as a foaming material to reduce heat release from the recording part. . In particular, the recording unit according to this method is manufactured by making extensive use of the above structure, and since 98% or more of the surface area of the recording unit is in contact with the outside through the air layer, most of the heat loss rate of the recording unit is It will be determined by the thermal conductivity of air.

The present inventor has determined that all or part of air in the space surrounding the recording portion or all or part of air in the porous heat insulating structure constituting the recording portion has a thermal conductivity higher than that of air. It was found that the recording sensitivity is improved by substituting with a low gas, or that the recording efficiency is improved by forming all or a part of the constituent members constituting the recording portion with a low thermal conductivity material, and thus the present invention is completed. Came to do.

[0026]

SUMMARY OF THE INVENTION According to the present invention, a layer of a heat-meltable recording material formed in a recording portion faces a recording medium with a gap, and the recording material is selectively heated to vaporize or A recording material that is configured to be sublimated and transferred to the recording medium through the gap, and at least a part of the surrounding space is filled with a substance having a thermal conductivity lower than that of air or is substantially in a vacuum. Related to vaporization or sublimation equipment.

The above-mentioned "recording portion" refers to a portion where the recording material is vaporized or sublimated and transferred to the recording medium.

In the present invention, it is desirable that at least a part of the surrounding space is filled with a gas having a thermal conductivity lower than that of air.

In the same manner as described above, the present invention is also constructed so that the recording material is transferred to the recording medium in the recording portion, and at least a part of the constituent members constituting the recording portion has a thermal conductivity lower than that of air. The present invention relates to a vaporization or sublimation device for a recording material containing a substance having a rate.

In the present invention, at least a part of the surrounding space is filled with a substance having a thermal conductivity lower than that of air at a temperature within a range of 100 to 300 ° C., or a constituent member constituting a recording section. At least a part of 100-300 ℃
The present invention relates to a recording material vaporization or sublimation device containing a substance having a thermal conductivity lower than that of air at a temperature within the range.

In the same manner as described above, the present invention is also configured so that the recording material is transferred to the recording medium in the recording section, and at least a part of the constituent members constituting the recording section has a thermal conductivity of 0.07 J / The present invention relates to a recording material vaporization or sublimation device formed of a material of K · sec · m or less.

In the present invention, the recording portion configured to vaporize or sublime the recording material by light irradiation comprises a photothermal conversion member to which a film material having a thermal conductivity of 0.07 J / K · sec · m or less is adhered. Can be configured as.

The present invention also provides a recording method for performing recording using the recording material vaporization or sublimation apparatus according to each of the present invention.

The present invention also provides a recording apparatus comprising the recording material vaporization or sublimation apparatus according to each of the present invention.

[0035]

[Function] Since the surface of the recording portion is practically covered with gas, most of the heat is conducted to the outside through the gas and is lost.
Only by substituting all or part of this gas with a gas having a lower thermal conductivity than air, the rate of heat loss is suppressed and the adiabatic effect is enhanced.

The equation for estimating the thermal conductivity of gas and the equation for estimating the thermal conductivity of mixed gas are already known.

Regarding the former, E. Eucken; Physik. Z.,
The following equation (1) is added to 14, 324 (1913), and D. Misic,
The following formula (2) is announced in G. Thodos; J. Chem. Eng. Data, 8, 540 (1963). k = 360 μ (C _p +2.48) / M [kcal / m ・ hr ・ deg] (1) kλ = 3.6 C _p ³ (bT _r + c) ⁿ × 10 ^-4 (k: kcal / m ・ hr ・) deg) (2)

Regarding the latter, H. Cheung, LA Bromel
ey, CR Whike; AIChE J., 8, (1962) announced the following equation (3).

[Equation 1] _{However, k ct = Ak t /(1.32C p} + B), K ct = k t -
k _ct , M _tf = (M _t + M _f ) / 2 For monoatomic molecule, A = 7.5 B = 0.90 For linear molecule, A = 9.5 B = 0.26 For non-linear molecule, A = 10.5 B = −0.06

Gases suitable for the present invention can be searched for using these estimation formulas. From these formulas, a gas having a large molecular weight, a small specific heat at constant pressure and a low viscosity is preferable. Specifically, high-molecular-weight rare gases such as argon, xenon, and krypton, high-molecular-weight organic gases such as halogenated carbon, or carbon dioxide such as carbon dioxide having a thermal conductivity from 100 ° C to 300 ° C that is smaller than that of air and is harmless. Is preferred. These gases can be used by mixing them at any ratio in the range of 100 ° C to 300 ° C whose thermal conductivity is smaller than that of air. The 100 ° C. is the melting point of the recording material (dye used for recording), and the 300 ° C. is the vaporization temperature.

The recording portion containing these gases is placed in the air stream of these low thermal conductive gases after foaming a foamable material by a usual means, and the gas in the bubbles is replaced with the low thermal conductive gas. To make. After replacement, the foamable structure is completed by heat-treating the surface or coating it with a gas impermeable resin or the like to prevent gas leakage or escape. Alternatively, the structure may be manufactured by using a foam material that generates a gas having low thermal conductivity in advance. Since these low thermal conductive gases generally have a large molecular weight, they are less likely to pass through a resin film or the like as compared with ordinary gases and maintain stability for a long time.

[0041]

EXAMPLES Examples of the present invention will be described below.

First, the outline of the structure of the recording unit will be described with reference to FIG.

A semiconductor laser chip is provided above the photothermal conversion section 21.
18 is located, and the recording paper 50 is located on the lower side. The recording paper 50 has an image receiving layer 50a formed on the upper surface of a base paper 50b. The photothermal conversion portion 21 and the image receiving layer 50a are opposed to each other with a gap d therebetween, and the gap d has a size of 10 to 100.
μm, for example, 60 μm.

Dye 12 or melted dye is provided below the photothermal conversion section 21.
12 'is supplied, the laser light L from the semiconductor laser chip 18 is converted into heat energy by the photothermal conversion unit 21, vaporizes (or sublimates) the dye 12 or 12', and this passes through the gap d to the image receiving layer 50a. It is transferred, fixed, and recorded.

FIG. 1 is a sectional view of the recording unit, FIG. 2 is an exploded perspective view of the recording apparatus, and FIG. 3 is a schematic sectional view of the recording unit for explaining the recording mechanism according to this example. First, the recording mechanism according to this example will be described with reference to FIGS.

In FIGS. 2 and 3, reference numeral 1 denotes a laser sublimation color video printer (laser sublimation printer), which is a housing 2
On the frame chassis 2 covered with a, there are a cassette 3 for receiving the recording paper 50 and a flat base 4 for recording.

On the recording paper discharge port 2b side in the housing 2a,
A paper feed drive roller 6a that is driven by the motor 5 and the like is provided, and a pressure contact driven roller 6b that sandwiches the recording paper 50 with the paper feed drive roller 6a with a light pressure is provided. A head drive circuit board 7 on which a drive IC is mounted and a DC power source 8 are provided above the cassette 3 in the housing 2a. The head drive circuit board 7 and the head portion (recording portion) 10 arranged on the plane base 4 are connected via a flexible harness 7a.

The head portion 10 comprises sublimable dyes 12 in the form of solid powders of yellow (Y), magenta (M) and cyan (C).
Y, 12M, and 12C (collectively indicated by reference numeral 12) solid dye storage tanks 11Y, 11M, and 11C (collectively indicated by reference numeral 11); and wear resistance made of a high-strength material located below Of the sublimable dye 12 in the form of solid powder in each of the solid dye storage tanks 11 is formed between the protective layer 13 and the head base 14 made of glass or transparent ceramics located on the upper side.
Narrow-path liquid dye storage tanks 15 that are heated and liquefied by a heater (heating element) 16 made of an electric resistor attached to the 14 side; liquefied sublimable dyes led from the respective liquid dye storage tanks 15 (Liquefied disperse dye) 12 'Each vaporizer 17 for vaporizing
Each semiconductor laser chip (laser light source) 18 that is attached to the head base 14 via a support board 19 and irradiates each vaporization section 17 with the laser light L is provided.

Inside the vaporizing holes 17a of each vaporizing section 17, a transparent heat insulating layer 20 attached to the head base 14 in order from the upper side;
Liquefied sublimable dye that is laminated on the transparent heat insulating layer 20 and absorbs the laser light L and converts it into heat; an adhesive layer 23; and a liquefied liquefied dye that is laminated on the photothermal conversion layer 21 via the adhesive layer 23. 12 '
And glass beads 22 'serving as a holding layer for holding the. The transparent heat insulating layer 20 is formed of transparent PET resin. The photothermal conversion layer 21 is formed by applying a mixture of a binder and carbon fine particles to the transparent heat insulating layer 20.

The glass beads 22 'have a diameter of 5 to 10 μm. The heater 16 is for diffusing and transferring the solid powdery sublimable dye 12 to the glass beads 22 'while heating and liquefying.

Then, the recording paper 50 in the cassette 3 of the laser sublimation color video printer 1 is separated one by one and supplied between the flat base 4 and the head portion 10 and sent to the paper feed drive roller 6a. To be The head unit 10 has a flat base 4 with a recording paper 50 sandwiched by a pair of light load springs 9, 9.
It is pressed against with a light load (about 50g). Further, the head portion 10 has semiconductor laser chips for three colors (Y, M, C).
A large number of pixels 18 arranged in 3 rows for each pixel, each liquid dye storage tank 11
(11Y, 11M, 11C) are heated and liquefied respectively and vaporized
Quantitatively supplied to 17.

That is, the solid powdery sublimable dyes 12 in the respective solid dye storage tanks 11 are heated to the melting point by the heater 16 to be melted (liquefied), and the respective liquid sublimable dyes 12 ′ are the respective liquid dyes. The vaporization holes of each vaporization unit 17 due to the capillary phenomenon of the storage tank 15.
A fixed amount is supplied to the glass beads 22 'in 17a. From this state, when one recording paper 50 is sandwiched between the paper feed drive roller 6a and the pressure contact driven roller 6b, one dot signal for each line is sent to the head section 10 for each semiconductor laser. The laser light L generated by the chip 18 is applied to each photothermal conversion layer 21.
Is converted into heat by.

As a result, each liquefied sublimable dye 12 'held in each glass bead 22' is vaporized, and each of the vaporized sublimable dyes (vaporized disperse dyes) 12 "Y, M, C vaporized sublimable dyes is vaporized. The recording paper 50 in which the paper is sent between the flat base 4 and the protective layer 13.
The image receiving layer 50a applied on the surface of the sheet is sequentially transferred in the order of Y → M → C and color printing is performed.

In FIG. 1, reference numeral 10 is a head portion used in the laser sublimation color video printer 1. Head
10 is housed in a case not shown, and the inside of the case is an IG atmosphere of argon, xenon, krypton (all have lower thermal conductivity than air) or substantially vacuum V (see FIGS. 12, 14, and 15 described later). The same applies to the heads 10, 100 and 110).

The head portion 10 contains sublimation dyes (solidified disperse dyes) 12Y, 12M and 12C (collectively denoted by reference numeral 12) in the form of solid powders of yellow (Y), magenta (M) and cyan (C). Each of the solid dye storage tanks 11Y, 11M, 11C (collectively denoted by reference numeral 11) to be stored; a wear-resistant protective layer 13 made of a high-strength material positioned on the lower side and a glass or transparent ceramic positioned on the upper side. Sublimable dye 12 in the form of solid powder in each solid dye storage tank 11 formed between the head base 14 for manufacturing
And a liquid dye storage tank 15 for storing the liquid dye by heating and liquefying it by a heater (heating element) 16 made of an electric resistor attached to the head base 14 side; and a liquefied sublimable dye led from each liquid dye storage tank 15. Each vaporizing part 17 for vaporizing the (liquefied disperse dye) 12 '; each semiconductor laser chip (laser light source) 18 attached to the head base 14 via a support board 19 and irradiating each vaporizing part 17 with a laser beam L; Is provided. This point is
The configuration is the same as that of FIG.

Here, a check valve 24 is provided at each connection port 23 between each solid dye storage tank 11 and each liquid dye storage tank 15.
Further, a dye pressurizing supply means (for example, a vibrating body) 25 for pressurizing and supplying the liquefied sublimable dye 12 ′ to the vaporizing part 17 side is provided at a position facing the vaporizing part 17 in each liquid dye storage tank 15. They are provided respectively. The dye pressurizing and supplying means 25 is composed of, for example, a bimorph or a piezo element, but it is not always necessary. The check valve 24 closes the connection port 23 when the dye pressurizing supply means 25 is pressurized, and opens the connection port 23 when the pressure is reduced and when no pressure is applied.

The sublimable dye 12 in the form of solid powder in each solid dye storage tank 11 is heated and liquefied by the heater 16 when the check valve 24 is opened to become a sublimable dye 12 ′, and in each liquid dye storage tank 15. It will be stored in.

At the center of the vaporization hole 17a of each vaporization section 17, a heat-resistant and light-transmissive base material 20 attached to the head base 14 and having heat resistance, light transmission and heat insulation, and heat resistance A photothermal converter 21 that is laminated on the transparent base material 20 and absorbs the laser light L to convert it into heat, and a liquid dye holder that holds the liquefied sublimable dye 12 'that has been heated and liquefied by a capillary phenomenon.
22 (built-in beads) are arranged respectively.

The heat-resistant, light-transmitting base material 20 has heat resistance of 180 ° C. or higher, thermal conductivity of 1 W / m ° C. or lower, and near-infrared light transmittance of 85%.
Above (thickness 10 μm), specific heat 2 J / g ° C or less, density 3 g /
Made of transparent film material of ³ cm or less, head base 14
It has been applied to.

The photothermal converter 21 is a polyimide film 35a.
A nickel-cobalt alloy thin film 35b is formed on the top by vapor deposition or sputtering.

The liquid dye holder 22 is formed by forming a metal thin film directly on the photothermal converter 21 and processing the metal thin film into a mesh shape by etching or the like.

According to the laser sublimation color video printer 1 described above, the sublimable dye 12 in the form of solid powder in each solid dye storage tank 11 is heated to the melting point by the heater 16 and melted (liquefied). The liquefied sublimable dyes 12 'are transferred by the dye pressurizing supply means 25 in the liquid dye storage tanks 15 and the capillarity causes the heat-resistant, light-transmissive base material 20 in the vaporization holes 17a of the vaporization parts 17, and the photothermal conversion. It is supplied to the body 21 and the liquid dye holder 22 at a constant rate at high speed.

When one sheet of recording paper 50 is color printed, one dot signal for each line is sent to the head section 10, and the laser light L generated by each semiconductor laser chip 18 is photothermally heated. It is converted into heat by the converter 21.
As a result, the liquefied sublimable dyes 12 'held in the respective liquid dye holding bodies 22 are vaporized, and the vaporized disperse dyes of Y, M and C of the respective vaporized sublimable disperse dyes 12 "are converted into the flat base 4 and the protective layer 13. The image is transferred to the image receiving layer 50a of the recording paper 50 sent in the order of Y → M → C, and color printing is performed.

As described above, since the vibrating body 25 is provided in each liquid dye storage tank 15, an appropriate light pressure is applied to the liquefied disperse dye 12 'in each liquid dye storage tank 15 so that the light-heat converters 21 and A fixed amount of the liquefied disperse dye 12 'can be sent out and supplied to the liquid dye holder 22 at a high speed. Also, liquid dye storage tank
By providing the check valve 24 at the connection port 23 between the solid dye storage tank 11 and the solid dye storage tank 11, it is possible to reliably prevent the liquefied disperse dye 12 'in the liquid dye storage tank 15 from returning to the solid dye storage tank 11. it can.

Furthermore, by providing the heater 16 in the liquid dye storage tank 15, the liquefied disperse dye 12 'can be heated and kept in a liquefied state at all times.

Further, the heat-resistant, light-transmissive base material 20 having an increased heat resistance makes it possible to obtain a structure which can withstand continuous use. Further, by stacking the photothermal converter 21 on the heat-resistant light-transmitting base material 20, while a structure that can withstand continuous use is possible,
The thermal conductivity can be increased, and even if the light energy distribution of the laser light L is non-uniform, such as a Gaussian distribution, thermal diffusion is quickly performed in the area direction, and a uniform temperature distribution can be realized, resulting in a uniform temperature distribution. Dye transfer can be performed.

Furthermore, the light-to-heat converter 21 is provided with a liquid dye holder.
22 is laminated, in particular, this liquid dye holder 22 is formed by a metal thin film processed into a mesh shape, and by adjusting the depth and pitch thereof, an appropriate amount of liquefied disperse dye required for recording is formed.
The liquid dye holder 22 can always hold the liquid dye 12 'reliably, and the photothermal converter 21 can always vaporize an appropriate amount of the liquefied disperse dye 12' necessary for recording. By forming the liquefied dye holder 22 directly on the photothermal converter 21, the adhesive layer can be omitted. As a result, the excess heat capacity can be eliminated and the thermal efficiency can be improved.

Next, the following experiment was conducted in order to investigate the quality of the recording result and the recording sensitivity according to this example. Figure 5
FIG. 3 is a schematic front view of an experimental recording device.

A pillar 44 is erected on the base plate 43, and brackets 45A, 45B, 45C and 45D are fixed to the pillar 44.
Recording chip 32 and lens for 45A, 45B, 45C and 45D respectively
37a, 37b and the semiconductor laser chip (SLD203) 38 are fixed with the optical axis in common. A focusing lens system 37 is composed of the lenses 37a and 37b. An XY stage 39 is fixed on a base plate 43 below the recording unit (recording chip) 32, and a recording paper 50 is placed on the XY stage 39.

FIG. 6 is a front view of the recording chip 32, and FIG. 7 is a plan view of the same.

Indium is formed on the lower main surface of the glass plate 33A.
A transparent conductive film 33B made of tin oxide (ITO) is formed by vapor deposition, and a frame-shaped spacer 34 is formed on the transparent conductive film 33B.
4 μm in FIG. 8 as a photothermal conversion part with a gap between
0.2 μm thick nickel-cobalt alloy vapor-deposited film on thick polyimide (Dupont brand name Kapton) film 35a
The photothermal conversion film 35 provided with 35b is fixed. A stainless steel cover 36 with a thickness of 10 μm is attached under the light-heat conversion film 35, and the diameter of the cover 36 is 1 mm in the center.
The dye supporting hole 36a is provided therethrough. Cover 36
The distance between the recording paper 50 and the recording paper 50 is 10 μm.

The dye 12 as a recording material is filled in the dye supporting hole 36a, and a pair of electrodes 33C and 33C provided on the transparent conductive film 33B.
A voltage is applied to the dye 12 to heat it to 150 ° C. to melt it. Then, the recording paper 50 is moved at a relative speed of 10 cm / sec, the laser beam L is condensed and irradiated from the semiconductor laser chip 38 to the molten dye to vaporize the dye, and the dye is transferred to the image receiving layer on the recording paper 50. Let

The wavelength of the laser beam L is 800 nm, the laser beam irradiation area for the molten dye is 20 μm × 30 μm, the recording chip
The output on the 32 screen is 30 mW. Note that the recording paper 50 is
A 180 μm synthetic paper is coated with a 6 μm thick polyester image-receiving layer.

Dye transferred to the polyester image-receiving layer by carrying out continuous recording using the dye described below as a recording material by the above-mentioned apparatus and heating the recording paper with a heater blade at 150 ° C. for 10 msec. Is diffused in the image receiving layer and completely fixed. The average line diameter, optical density and recording sensitivity of the thus obtained linearly recorded image were measured.

<Experiment 1> Tricyanostil magenta dye (HSR-20) having the following structure at a melting point of 125 ° C. and a boiling point of 380 ° C.
31) and a naphthalocyanine-based infrared absorbing dye having the following structure having a maximum absorption wavelength of 800 nm were mixed to obtain a recording dye.

[0076]

[Chemical 1]

[0077]

[Chemical 2]

The mixing ratio is 100 parts of HSR-2031 and 2 parts of the naphthalocyanine dye. The naphthalocyanine dye used in this example has been found to be stable up to 350 ° C. by thermogravimetry using differential thermal analysis.

The mixed dye is set on the recording chip 32 of the experimental apparatus shown in FIGS. 5 to 7, a voltage is applied to the electrodes 33C and 33C to energize the transparent conductive film 33B, and the mixed dye 12 is heated to 150 ° C. Melted The mixed dye became a smooth layer with a thickness of 4 μm.

After the above preparation was completed, the entire apparatus was put in a dry box DB and sealed, and the air in the dry box DB was replaced with argon gas at 1 atm. Then, the recording paper 50 was moved while irradiating the molten mixed dye with laser light from the semiconductor laser chip 38, and a linear recording image with the magenta dye was formed on the image receiving layer of the recording paper 50.

The average line width of the linear image formed by recording the magenta dye on the image-receiving layer was 115 μm, and its optical density was 2.2 on a Macbeth densitometer. The recording sensitivity calculated from the amount of the dye transferred to the image receiving layer of the recording paper dissolved in a solvent was 74 μg / J (J is the energy of the laser beam).

After recording for 60 minutes, the recording chip was put into a beaker, and the residual naphthalocyanine dye in the dye layer was extracted with acetone. Residual naphthalocyanine dye is about
It had decreased to 75%. The lost naphthalocyanine dye is divided into a component transferred to the recording paper and a thermally decomposed component. However, since the naphthalocyanine dye transferred to the image receiving layer had almost no absorption in the visible region, it was not visible at all, and the recording paper was practically not contaminated.

<Experiment 2> The experiment was carried out under the same conditions as in Experiment 1 except that the argon gas in the atmosphere in the dry box DB in Experiment 1 was replaced with xenon gas.

As a result, the average line width of the linear image formed by recording the magenta dye on the image-receiving layer was 120 μm, the optical density was 2.8 on a Macbeth densitometer, and the recording sensitivity was 86 μg / J.

<Experiment 3> A spacer made of expandable polyimide having the same shape and size as the spacer 34 shown in FIGS. 6 and 7 is foamed in a xenon gas stream, and the gas in the bubble is replaced with xenon gas to form a xenon-substituted expanded polyimide. A film was made. An aluminum plate heated to 500 ° C was pressed against the surface of this film, and the outermost surface of the film was heat-treated to contain the xenon gas in the bubbles. And the final film thickness is 10μ
Adjusted to m.

FIG. 9 is a sectional view similar to FIG. 6 of a recording chip using the above spacer. Recording chip 132
Is a polyimide (Kapton) film provided with a transparent conductive film 33B made of ITO on glass 33A, a spacer 134 made of a xenon-substituted foamed polyimide film 134a and an aluminum plate 134b, and a nickel-chromium alloy vapor deposition film 35b.
It is composed of the photothermal conversion film 35 composed of 35a. The heat converted from the laser light by the photothermal conversion film 35 is the xenon-substituted foamed polyimide film 134a (the photothermal converter of FIG. 1).
(Applicable to 21) Xenon gas inside suppresses release to the outside.

Recording was performed in the atmosphere in the same manner as in Experiments 1 and 2 by using the apparatus shown in FIG. 5 in which the recording chip 132 was assembled.

As a result, the average line width of the linear image formed by recording the magenta dye on the image-receiving layer was 115 μm, the optical density was 2.6 with a Macbeth densitometer, and the recording sensitivity was 77 μg / J.

For comparison, the following experiments were conducted corresponding to Experiments 1 to 3.

<Comparative Experiment 1> Recording was performed in the atmosphere in the same manner as in Experiments 1 and 2 without using argon gas or xenon gas as the apparatus atmosphere. As a result, the average line width of the linear image formed by recording the magenta dye on the image receiving layer was 105 μm,
Its optical density is 2.2 with a Macbeth densitometer, and its recording sensitivity is 60μ.
It was g / J.

The recording results of the above Experiments 1 to 3 are summarized in the following table. The table also shows the recording results of Comparative Experiment 1.

[0092]

From the table, it can be seen that in the experiment based on the present invention, the recording density, recording line width and recording sensitivity are all higher than those in the comparative experiment, and good recording is performed.

<Experiment 4> A polyethylene terephthalate (PET) film having a thickness of 4 μm (heat conductivity of 0.14 J / K.
sec-m), a nickel-cobalt alloy as a light absorber vacuum-deposited with a thickness of 0.2 μm is used as a light-heat converter, and P
Foamed propylene having a thickness of 0.1 mm (heat conductivity 0.07 J / K · sec · m) was adhered to the ET film side. This layer of foamed propylene has a low thermal conductivity and is also intended to reinforce the photothermal conversion body.

FIG. 10 shows the photothermal conversion film 135 constructed as described above. In the figure, 135a is a PET film, 135b
Is a nickel-cobalt alloy vapor deposition film, and 135c is a foamed polypropylene layer. This film 135 is also applicable to the example of FIG.

A magenta dye HSR-2013 was applied to the nickel-cobalt alloy film 135b side with a wire bar to a thickness of 2 μm. Photothermal conversion film (magenta dye)
122 is applied) 135 is replaced with the photothermal conversion film 35 of FIG. 8 and assembled in the apparatus of FIG. 5 (the cover 36 of FIG. 6 is unnecessary), and the laser light from the semiconductor laser chip (SLD203) 38 is attached to this.
Irradiated with 20 mW. The full width at half maximum of the laser light at this time is 80 μm
Met. The recording paper 50 is set at a position 50 μm away from the coating dye layer 122.

It was confirmed that the dye migrated to the image receiving layer of the recording paper, but in order to record with an optical density of 2,
A laser beam irradiation time of 02 seconds was required. If the recording time per dot is about 0.02 seconds, it takes only a few minutes to obtain one A6 size print image, which is preferable as a practical printer.

<Comparative Experiment 2> A glass having a thickness of 0.1 mm (heat conductivity of 1.1 J /
K · sec · m) was adhered to the PET film 135a, and the same recording as in Experiment 4 was performed.

As a result, 0.1 second of laser light irradiation time was required for the optical density of the recording layer on the recording paper to reach 2.

As in Experiment 4, the photothermal conversion film was provided with a layer of low thermal conductivity (in this example, a layer 13 of expanded polypropylene).
By providing 5c), heat is effectively retained, the laser light irradiation time per dot is shortened to 1/5, and the recording speed can be increased. That is, the recording efficiency is increased five times.

The recording apparatus has the structure shown in FIG.
The structure shown in FIG. 11, FIG. 13, and FIG. 14 can be adopted.

FIG. 11 shows a head portion used in a laser sublimation type color video printer.

As in the example of FIG. 1, the head portion 90 of FIG. 11 contains the solid dye storage tanks 11 for storing the sublimable dyes (solidified disperse dyes) 12 in the form of solid powder; and the solid dye storage tanks 11 respectively. Each liquid dye storage tank 15 for liquefying and storing the solid powdery sublimable dye 12 therein by a heater 16 composed of an electric resistor attached to the head base 14 side; led from each liquid dye storage tank 15 Each vaporizing part 17 for vaporizing the liquefied sublimable dye (liquefied disperse dye) 12 '; and each semiconductor laser chip 18 attached to the head base 14 via the support board 19 and irradiating each vaporized part 17 with the laser beam L. A check valve 24 provided at a connection port 23 between each solid dye storage tank 11 and each liquid dye storage tank 15; and a check valve 24 provided at a position facing the vaporization section 17 in each liquid dye storage tank 15,
A vibrating body (dye pressurizing and supplying means) 25 for pressurizing and supplying the liquefied sublimable dye 12 ′ is provided on the vaporizing section 17 side.

At the center of the vaporization hole 17a of each vaporization section 17, a heat-resistant and light-transmissive resin material 30 attached to the head base 14 and having both heat insulation and light transparency, and a heat-resistant and light-transmissive resin material 30 are provided. And a photothermal converter 31 that absorbs the light of the laser light L and converts it into heat. Heat resistant transparent resin material 30
Aromatic polyamide (aramid) is used for. The photothermal converter 31 is made of polyimide resin.

When the laser light L is steeply emitted from each semiconductor laser chip 18, the laser light L passes through the head base 14 made of glass or the like and the heat-resistant light-transmitting resin material 30 to reach the photothermal converter 31. It is converted into heat corresponding to the light distribution.
Due to this heat, the heat-resistant and light-transmissive resin material 30 is applied to
As shown exaggeratedly in (c), the thermal expansion rapidly occurs, and FIG.
As shown in (c), the liquefied sublimable dye 12 'adhered to the light-heat exchanger 31 is given kinetic energy that flies toward the image receiving layer 50a of the recording paper 50. As a result, as shown in FIG. 12D, a proportional amount of the vaporizing sublimable dye 12 ″ due to the heat is attached to the image receiving layer 50a of the recording paper 50, and a density gradation is obtained. .

In FIG. 12 (c), φ ₁ shows the irradiation spot diameter of the laser beam L (φ ₁ = 100 μm), and in FIG. 12 (d), φ ₂ is the diameter of one dot (pixel) ( φ ₂ = 60-80μ
m) is shown. In this way, each vaporizing sublimable disperse dye 1
The 2 ″ Y, M and C vaporizing sublimable dyes are sent between the flat base 4 and the protective layer 13 and Y → M → on the image receiving layer 50a of the recording paper 50.
Colors are printed by shifting in the order of C.

Further, by using the aromatic polyamide for the heat-resistant light-transmitting resin material 30, the heat resistance of the heat-resistant light-transmitting resin material 30 can be further improved and it can withstand continuous use.

FIG. 13 shows another head portion used in the laser sublimation color video printer. Head part 10 in FIG. 13
0 is each solid dye storage tank 11 that stores a sublimable dye (solidified disperse dye) 12 in the form of a solid powder; and the electrical resistance with the sublimation dye 12 in each solid dye storage tank 11 attached to the protective layer 13 side. Each liquid dye storage tank 15 that is heated and liquefied by a heater (heating element) 16 composed of a body, and each vaporization that vaporizes a liquefied sublimable dye (liquefied disperse dye) 12 'introduced from each liquid dye storage tank 15 Parts 17; semiconductor laser chips 18 attached to the protective layer 13 via a support board 19 and irradiating each vaporizing part 17 with laser light L; solid dye storage tanks 11 and liquid dye storage tanks 15.
And a check valve 24 provided at a connection port 23 for connecting with the vaporization unit 17 in each liquid dye storage tank 15 at a position facing the vaporization unit 17.
A vibrating body (dye pressurizing and supplying means) 25 for pressurizing and supplying the liquefied sublimable dye 12 'is provided on the side.

At the center of the vaporization hole 17a of each vaporization section 17, an optical fiber 40 that penetrates the head base 14 and extends to the vaporization hole 17a to guide the laser light L, and a laser light guided from the optical fiber 40 are provided. A light-heat converter 41 that absorbs the light of L and converts it into heat is arranged. The optical fiber 40 is for reliably guiding the laser light L to the photothermal conversion body 41 without leaking outside. The photothermal conversion body 41 is made of a polyimide film. Further, the vaporization holes 17a of each vaporization section 17 are liquefied sublimable dyes 1
It has a structure that supplies 2 ', and the surrounding area is heat insulating material 42
It is surrounded by.

The laser light L emitted from each semiconductor laser chip 18 reaches each photothermal converter 41 via each optical fiber and is converted into heat corresponding to the light distribution. Due to this heat, each liquefied sublimable dye 1 adhered to each photothermal conversion body 41
2'is vaporized, and each vaporized sublimable disperse dye 12 "Y,
The vaporized disperse dyes of M and C are transferred to the image receiving layer 50a of the recording paper 50 sent between the flat base 4 and the protective layer 13 in the order of Y → M → C and color printed.

As described above, the photothermal converter 41 is connected to the optical fiber 40.
By being laminated on the lower surface of the photothermal converter 41, it is possible to improve the heat resistance of the photothermal converter 41 for continuous use and to increase the thermal conductivity, and the light energy distribution of the laser light L is, for example, a Gaussian distribution. Even if it is non-uniform, thermal diffusion is performed quickly in the area direction, a uniform temperature distribution can be realized, and uniform dye transfer can be performed.

By covering the lower part of the optical fiber 40 and the vaporization hole 17a of the vaporization part 17 surrounding the photothermal conversion body 41 with the heat insulating material 42, the periphery of the photothermal conversion body 41 is insulated so that heat is not released and the heat generated by the heat generation is reduced. The vaporization rate of the liquefied sublimable dye 12 ′ by the converter 41 can be improved.

The photothermal conversion element can be directly fixed to the recording section as in the above-mentioned respective examples, or can be arranged so as to be suspended in the space of the vaporization section 17 by a thin support. Figure 14
Shows an example applied to the recording unit of FIG. 1 as described above. The light-heat converter 21 is hung by the thin wires W and W through the liquid dye holder 22, and the liquefied dye 12 ′ is transferred to the light-heat converter 21. It shows the state of being supplied to.

Further, a spacer similar to the spacer used in Experiment 3 can be used. FIG. 15 shows an example applied to the example of FIG. 1 in this way. The heat-resistant, light-transmissive base material 20 includes a frame-shaped xenon-substituted foamed polyimide or polyurethane 133, a light-heat conversion film 135 including a Kapton film 135a and a nickel-chromium alloy vapor deposition film 135b.
A liquefied dye holder 22 made of glass beads is sequentially arranged to form a photothermal converter 121.

A xenon gas having a low thermal conductivity may be filled in the space 133a in the frame-shaped xenon-substituted polyimide or the polyurethane 133. In this case, it is possible to suppress the emission of heat converted from the laser light and increase the recording efficiency.

In all of the above examples, the laser beam is irradiated from above the head portion to record on the recording paper located on the lower side. However, the upper and lower sides of these examples can be reversed. it can. FIG. 16 shows such a head portion.

In the head section 110 shown in FIG. 16, the head base 14
Place a heater 16 on top and energize this to each solid dye storage tank
The solid dye 12 supplied from 11 is heated and melted to form a liquefied sublimable dye 12 '. A heat-resistant translucent base material 20, a photothermal conversion body 21, and a liquid dye holding body 22 are laminated on the head base 14 in this order from bottom to top.

A semiconductor laser chip 18 is located below the head base 14 so that the laser light L is applied to the liquid dye holder 22.
The liquid dye retained on the recording medium 50 is condensed and irradiated to vaporize the liquid dye, and the vapor passes through the vaporization section 17, and the dye receiving layer 50a of the recording paper 50 above.
Move to.

Others are the same as in the head portion 10 of FIG. Note that the structure of the head unit is shown in FIG.
It goes without saying that the same structure as above (however, upside down) may be used.

Photothermal conversion bodies 21 (FIG. 1), 31 (FIG. 11), 41
(Fig. 13) is not made of polyimide, and the heat-resistant, light-transmissive base material 20 (Fig. 1), 30 (Fig. 11), 40 (Fig. 13) is nickel-coated.
Cobalt alloy thin film (near infrared transmittance 0.9 or more, thickness 1
μm or less, specific heat 0.5 J / g ° C or more, thermal conductivity 20 W / m ° C
As described above, a density of 20 g / cm ³ or less) may be provided by vapor deposition or sputtering.

In this case, the area of this thin film is as shown in FIG.
It may be limited to the recording area S of the vaporizing dye shown in FIGS. 1, 13 and 16. In this way, the heat resistance of the light-heat conversion means can be improved to enable continuous use, the thickness can be reduced and the heat capacity can be suppressed to a small level, and the periphery of the light-heat conversion body can be insulated with the liquid dye. The thermal efficiency can be increased.

Further, the solid dye may be once made into a liquid state and vaporized for recording, or the solid dye may be directly vaporized, that is, sublimated by heating with a laser beam for recording.

Needless to say, the same effect can be obtained even if the vacuum is replaced by a rare gas such as argon. Further, as the gas, a halogenated carbon (for example, CCl ₄ ) or carbon dioxide can be used in addition to argon and other rare gases. Furthermore, in addition to gas, liquid or solid having low thermal conductivity can be used in a place other than the place where the liquefied dye or the vaporized or sublimated dye passes.

Although the embodiments of the present invention have been described above, various modifications can be added to the above embodiments based on the technical idea of the present invention.

For example, the structure and shape of the recording layer and the head section may be an appropriate structure and shape other than those described above, and other appropriate materials may be used for the material of each part constituting the head section.

Further, full-color recording can be performed by using the recording dyes of three colors of magenta, yellow, and cyan, and one color of mono-color or monochrome can be recorded.

Further, as the energy for vaporizing or sublimating the heat-fusible recording material such as dye, other energy, for example, other electromagnetic waves, or discharge using a stylus electrode can be used. .

[0128]

According to the present invention, the layer of the heat-fusible recording material facing the recording medium with a gap therebetween is selectively heated and vaporized or sublimated, and transferred to the recording medium through the gap. Since at least a part of the surrounding space is filled with a substance having a thermal conductivity lower than that of air or is substantially evacuated, the following effects can be obtained.

Since the recording material is not brought into contact with the recording material, it is not necessary to support the recording material on the carrier and supply it. Therefore, the recording material which is not used for recording and remains on the carrier is discarded together with the carrier. It is not generated as a matter, and since only the recording material is heated, it has high energy efficiency. Further, a load for contacting the recording material and the recording material is unnecessary, and the recording apparatus can be made compact and lightweight.

Further, when a plurality of types of recording materials are overlaid for recording, the previously recorded recording material does not move to another recording material used for the next recording and contaminate it.

By making at least a part of the surrounding space have a lower thermal conductivity than that of air, release of thermal energy for heating the recording material is suppressed, recording density is high, clear recording is performed, and energy loss is caused. Also few.

As a result, good quality recording is always guaranteed and recording efficiency is high.

[Brief description of drawings]

FIG. 1 is a sectional view of a recording unit of a recording apparatus according to an embodiment.

FIG. 2 is an exploded perspective view of the recording apparatus.

FIG. 3 is a partial cross-sectional view of a recording unit for explaining the recording mechanism.

FIG. 4 is a schematic cross-sectional view of a recording unit of the recording apparatus.

FIG. 5 is a front view of the experimental recording apparatus.

FIG. 6 is a front view of a recording chip of the experimental recording device.

FIG. 7 is a plan view of a recording chip of the experimental recording device.

FIG. 8 is an enlarged front view of a photothermal conversion unit (polyimide film) of the recording apparatus for experiment.

FIG. 9 is a cross-sectional view of another recording chip for the same experiment.

FIG. 10 is a cross-sectional view of still another recording chip for the same experiment.

FIG. 11 is a cross-sectional view of a recording unit of a recording device according to another embodiment.

FIG. 12 is an explanatory diagram showing a temperature change of the heat-resistant light-transmitting resin and a dye transfer relationship with the passage of the laser light irradiation time.

FIG. 13 is a cross-sectional view of a recording unit of a recording device according to still another embodiment.

FIG. 14 is a front view of a photothermal conversion body according to still another example.

FIG. 15 is a front view of a photothermal conversion body according to still another example.

FIG. 16 is a cross-sectional view of a recording unit of a recording device according to still another embodiment.

FIG. 17 is a front view of relevant parts of a recording apparatus using a conventional thermal recording head.

[Explanation of symbols]

 18, 38 ... Semiconductor laser chip 10, 32, 90, 100, 110 ... Recording unit 11 ... Solid dye storage tank 12 ... Solid dye 12 '... Liquid dye 12 "... Vaporization Dye 12a ... Layer of segregated light-heat converting pigment 15 ... Liquid dye storage tank 16 ... Heating element 17 ... Vaporizer 20, 30, 40 ... Heat-resistant light-transmissive base material 21, 31, 35, 35C, 41 ... Photothermal converter 22 ... Liquid dye holder 22 '... Glass beads 33B ... Transparent conductive film 36 ... Cover 36a ... Dye holding hole 50 ... Cover Recording paper 50a ... Image receiving layer L ... Laser light d ... Gap BD ... Dry box IG ... Inert gas V ... Vacuum

 ─────────────────────────────────────────────────── ─── Continuation of front page (72) Hiroyuki Shioda 6-735 Kita-Shinagawa, Shinagawa-ku, Tokyo Sony Corporation (72) Masanori Ogata 6-35 Kita-Shinagawa, Shinagawa-ku, Tokyo Inside Sony Corporation

Claims (8)

[Claims] 1. A layer of a heat-fusible recording material formed in a recording portion faces a recording medium with a gap therebetween, and the recording material is selectively heated to vaporize or sublimate, and the recording material passes through the gap. An apparatus for vaporizing or sublimating a recording material, which is configured to be transferred to a recording medium, and in which at least a part of the surrounding space is filled with a substance having a thermal conductivity lower than that of air or is substantially in a vacuum. 2. The recording material vaporization or sublimation apparatus according to claim 1, wherein at least a part of the surrounding space is filled with a gas having a thermal conductivity lower than that of air. 3. Similar to claim 1, the recording material is configured to be transferred to a recording medium in a recording portion,
A recording material vaporization or sublimation device in which at least a part of the constituent members of the recording unit contains a substance having a thermal conductivity lower than that of air. 4. At least a part of the surrounding space is 100 to 300.
Is filled with a substance having a thermal conductivity lower than that of air at a temperature in the range of ° C, or at least a part of the constituent members of the recording unit is higher than that of air at a temperature in the range of 100 to 300 ° C. Encapsulating a substance with low thermal conductivity,
The apparatus for vaporizing or sublimating a recording material according to claim 1, 2 or 3. 5. Similar to claim 1, the recording material is configured to be transferred to a recording medium in a recording portion,
A recording material vaporization or sublimation device in which at least a part of the constituent members of the recording unit is formed of a material having a thermal conductivity of 0.07 J / K · sec · m or less. 6. A recording portion configured to vaporize or sublime a recording material by light irradiation has a thermal conductivity of 0.07 J / K.multidot.
The apparatus for vaporizing or sublimating a recording material according to claim 5, further comprising a photothermal conversion member to which a film material of sec.m or less is adhered. 7. A recording method for performing recording using the recording material vaporization or sublimation apparatus according to claim 1. Description: 8. A recording apparatus comprising the recording material vaporization or sublimation device according to claim 1. Description: