JPH0635152A - Image-receiving body for manufacturing dye diffusion type thermal transfer image - Google Patents

Abstract

PURPOSE: To provide an image receiving body capable of obtaining a thermally stable dye image and the dye image having excellent resistance against ultraviolet ray by preventing the diffusion of a dye in the horizontal direction after forming image. CONSTITUTION: This image receiving body is constituted so as to contain (1) a base body, (2) an opening type porous film laminated on the surface of the base body and consisting of a material extremely low in the affinity to the dye and (3) a polymer filled in the pores of the porous film, high in the affinity to the dye and having >=-5 deg.C to <=40 deg.C glass transition point (Tg).

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a dye diffusion type thermal transfer image receptor. Dye-diffusion type thermal transfer technology is one of several technologies capable of producing a color hard copy similar to a silver salt type color image, and has attracted attention in recent years because the system itself is compact. .
Currently, it is one technological development and seemingly systems and materials have reached the point of satisfying those who use them. However, further technological innovation is required for reduction of heat energy for printing and stability of printed images. In particular, in a system in which an image is formed by thermal diffusion of a dye, the image receiving layer / receiver plays a large role.

[0002]

2. Description of the Related Art In the conventional method, for example, Japanese Patent Laid-Open No. 63-
As described in 51181, a uniform dye-receiving layer is formed of a polymer material having a relatively high glass transition point (Tg ≧ 40 ° C.), which is used as an image-receiving layer. In this case, most of the heat-diffused dye is present on the surface of the receiving layer during image formation, and there is a problem with the stability of ultraviolet light. Further, when a dye having a lower melting point is used in the donor layer, it causes a problem in stability including its thermal stability after image formation.

Also, for example, Japanese Patent Laid-Open No. 58-21299.
4, and in JP-A-58-215398, when a network structure is introduced into the image-receiving layer by a crosslinking reaction, the glass transition point (Tg) of the image-receiving layer itself is naturally raised, and at the time of image formation. The resulting sticking with the donor surface will, if at all prevented, give the same result as the uniform image-receiving layer described above.

In JP-A-61-164893, a low boiling point solvent is used as a solvent for coating the image receiving layer when the image receiving layer is formed on a substrate, and the image receiving layer has a fine structure in the drying process after coating. However, in this method, the result is the same as that of the above-mentioned uniform image receiving layer.
Further, for example, in JP-A-61-127392 and JP-A-1-264896, the image receiving layer has a dual structure of a dye absorbing layer and a stabilizing layer. In this case, the structure of the image receiving layer itself becomes complicated, and for stabilization of the image, it is necessary to perform a process other than printing, in particular, transfer from the absorbing layer on the surface of the dye to the stabilizing layer by thermal diffusion.

For example, in JP-A-59-171687, a polymer dye having a low glass transition point by introducing a metal ion into an image-receiving layer to form a chelate with a dye and increasing the molecular weight of the dye in the layer. Thermally in the image receiving layer,
It can also be stabilized against ultraviolet light. However, chelate causes a change in the color tone of the dye, making it difficult to accurately reproduce the color. Further, in order to bring out the above-mentioned performance, it is impossible to combine a general dye and a metal ion.

[0006]

SUMMARY OF THE INVENTION The present invention does not have the above-mentioned drawbacks of the prior art, the heat-transferred dye is kept stable and does not spread laterally, thus maintaining a clear image for a long time. It is intended to provide an image receptor for producing a dye diffusion type transfer image.

[0007]

The present invention provides (1) a substrate (2) an open-pore type porous film made of a polyolefin material laminated on the surface of the substrate, and (3) in the pores of the porous film. Filled, -5 ° C
The above problem is solved by an image receptor including a polymer having a glass transition temperature (Tg) of 40 ° C. or lower.

The present invention also includes (1) a substrate, (2) an open-pore type porous film made of a polyolefin material bonded to the substrate, and (3) filled in the holes of the porous film, Glass transition temperature (T
a polymer having g); further having a low affinity for the porous film and having a temperature of -5 ° C or higher 4
There is provided an image receptor having an image comprising at least one dye having a high affinity for a polymer having a glass transition temperature of 0 ° C. or lower.

The present invention further comprises (1) a substrate, (2) an open-pore type porous film made of a polyolefin material bonded to the substrate, and (3) filled in the holes of the porous film, Glass transition temperature (T
A polymer having g) is applied to the surface of an image receptor, which causes the image receptor to receive and retain the image.

[0010]

The present invention is a well-known technique for an image receptor having a dye-receptive polymer material in an image-receiving layer on a substrate, and to a dye containing a dye-receptor polymer material in its pores. An image receptor having an image-receiving layer composed of an olefin-based open-type porous film having a low affinity for, for example, a polypropylene film or a polyethylene film on a substrate. Generally, an olefin-based material is known as a material having no active site for dyeing, and dyeing of this material is very difficult.

By introducing this kind of porous film into the image receiving layer, it becomes possible to use a polymer material having a lower Tg (for example, Tg = 5 ° C.) as a dye receiving material. This is because the dye-receptive polymer material exists within the spongy pores composed of a polymer having extremely low affinity for the dye, and this porous film pore lattice is formed by the image formation of the dye. This is because it hinders the horizontal diffusion of the dye thermally diffused from the donor layer in the receiving polymer material due to heat. In the image receptor using a polymer material having a low Tg prepared by a known technique as a dye receptor, the dye as an image easily diffuses in the horizontal direction, and the thermal stability of the image is lacked. Dye image is thermally stabilized.

Further, the image receptor of the present invention can enhance the ultraviolet light resistance of the dye image. In particular, by using a polymer material having a low Tg or containing a plasticizer as the dye receiving material, the performance is enhanced and the thermal stability is also kept high. This is because the dye forming the image in the image receiving layer reaches deeper than just the surface thereof because the dye receptor has a low Tg.

[0013]

DETAILED DESCRIPTION The dye donor film applied to the image receptor of the present invention may be any conventional dye donor film and does not constitute a feature of the present invention. The substrate constituting the image receptor of the present invention can also be used any conventional film, for example polyethylene terephthalate, polycarbonate,
Nylon, paper, etc. can be used. The thickness of the substrate is 100 μm to 20 μm, preferably 100 μm to 50 μm
m.

The material for the porous film of the present invention includes:
Polyolefins such as polypropylene and polyethylene, which are known to have extremely low affinity for dyes and have no active site for dyeing, are known. These need to be an open-pore type porous film in order to accommodate the polymer which has the glass transition point of -5 degreeC or more and 40 degrees C or less mentioned later. Gurlex value (definition: 50cc
The time required for the air to pass through the film (seconds)), the Gurlex value of the porous film is 100 to
5, preferably 35 to 10. The thickness of the porous film is 30 μm to 10 μm, preferably 25 μm to 15 μm
m.

The polymer filled in the pores of the porous film has an affinity for the dye and can accept the dye, and its glass transition temperature (Tg) is from -5 ° C to 40 ° C.
C, preferably 5 to 20 ° C. When the glass transition temperature is too high, the light resistance of the image to ultraviolet rays is extremely reduced. When it is too low, the dye diffuses thermally in the image receiving layer at room temperature, resulting in deterioration of image quality or loss of image.
These polymers include polyvinyl chloride (PVC),
Examples thereof include copolymers of vinyl chloride and vinyl acetate, thermoplastic saturated polyesters, and the like.

The dye-receiving polymer of the image receptor of the present invention further comprises a plasticizer such as di-n-butyl phthalate or di-2-.
Ethylhexyl phthalate and the like can be used in an amount of 5 to 40% by weight, preferably 15 to 35% by weight (based on the total weight of the dye receiver). If it is less than 5%, the ultraviolet light resistance cannot be expected, and if it exceeds 40%, the thermal stability is insufficient and bleeding occurs. Furthermore, FC as a release agent
-430, FC-431, FC-124, etc. can be used.

In the production of the image receptor of the present invention, first, a porous film may be laminated on a substrate, and then the pores of the porous film may be filled with a solution of a dye-receptive polymer and dried.
At this time, the dye receiving polymer also plays the role of an adhesive for fixing the porous film on the substrate. The substrate and the porous film can be laminated by a conventional method, for example, by simply superimposing the porous film on the substrate, or by thereafter laminating the porous film by applying heat to the extent that the pores are not collapsed.

The dye-receiving polymer is first dissolved in a suitable solvent, for example, a general organic solvent such as tetrahydrofuran or methyl ethyl ketone at a suitable concentration, for example, 1 to 30%, preferably 5 to 10% to prepare a solvent, and this solution is prepared. May be applied to the porous film. Next, this is 40 ℃ ～ 80
Dry at 5 ° C., preferably 50 ° C. to 70 ° C. for 5 to 60 minutes, preferably 10 to 30 minutes, for example 20 minutes.
If a plasticizer is used, it may be dissolved together.

[0019]

EXAMPLES Next, the present invention will be described more specifically by way of examples. The polyethylene or polypropylene shown in Table 1 was used as the porous film. ─────────────────────────────────── Material Tm (℃) Thickness Gurlex value (μm) (sec) / 50cc Air) ─────────────────────────────────── Polyethylene # 06101-5 124-131 14 19 Polypropylene # 770-28 163-167 20 10 Polypropylene # 770-2S 159-163 25 400 Polypropylene # 770-3S 158-163 17 240 Polypropylene # 770-4S 158-162 15 400 Polypropylene # 770-6S ^* 155-160 10- Polypropylene # 739-2B 158-162 20 34 ─────────────────────────────────── ^* Single-sided porous film Acceptance The following polymers were used as the polymer. (1) Polyvinyl chloride (PVC) (2) Copolymer of vinyl chloride and vinyl acetate Zeon 400 × 150J (Nippon Zeon) (3) Polyester Vylon 290, Vylon 200, Vylo
n 300, Vylon GK 570 and Vylon
GK 550 (Toyobo) Vitel PE 307 (Goodyear) PVC film (Mitsubishi Kasei Vinyl)

Tetrahydrofuran (TH
A polymer solution was prepared by dissolving it in F) at a concentration of 5%.
If a plasticizer was used, the plasticizer di-n-butyl phthalate was dissolved with the pomaly. When using a mold release agent, FC-430 (manufactured by 3M) was dissolved in THF at a concentration of 5%. In the production of the receptor, the porous film shown in Table 1 was coated on a polyethylene terephthalate (PET) film having a thickness of 4 mil by using Scotch tape # 811-1-1.
8 (manufactured by 3M), and the polymer solution and the like prepared as described above were coated on the porous film using a Meyer bar and dried at 65 ° C. for 20 minutes. This image receptor is referred to as "type 1".

Next, the image receptor manufactured as described above was heat-treated by the heat roller shown in FIG. 1 (190C manufactured by Gunma Ushio) or the thermal printer shown in FIG. 2 (test printer 7 Volts manufactured by 3M). The image receptor thus obtained is called "type 2". In FIG.
A 4 mil thick polytetrafluoroethylene film (PTFE) is laid on the image receiving layer of the image receptor consisting of the substrate and the image receiving layer, and the 2 mil thick PET film and 4 mil thick P film are laminated on the image receiving layer.
It was sandwiched between ET films and pressed with a heat roller. Figure 2
In the image receiving layer comprising a substrate and an image receiving layer, a polyethylene terephthalate film (P
ET) was overlaid and heated from the PET film side with a thermal head. On the other hand, the above polymer solution was applied to a PET film (substrate) having a thickness of 4 mil using a Meyer bar and dried at 65 ° C. for 20 minutes to obtain an image receptor. This is called "type 3". The image receptor was evaluated as follows.

As a print donor film, a product manufactured by Misoneta Mining and Manufacturing Co. was used. This and the image receptor to be inspected are stacked as shown in FIG.
An image was created by applying a load of 1.9 kg to the head using a thermal printer having a thermal head of 0 dpi (manufactured by Minnesota Mining and Manufacturing Co.). The applied voltage was 7 V and the burn time was fixed at 6.4 msec. The thermal energy generated by this is 2.08 J / cm @ 2.

Thermal stability evaluation Hold printed sample for 65 hours at 50 ° C. (aging)
Then, the front and back were observed using an optical microscope. UV stability evaluation Q-UV (351 nm lamp) was used to set the temperature to 50 ° C and the change over time in the fading of the sample was measured with a data processor (Model DP-100, manufactured by Minolta) Chroma meter (Model CR-A11, manufactured by Minolta). ) Was used for measurement and evaluation.

The amount of change is DeltaE / DeltaEm
It is represented by ax. DeltaE = [(L * t-L * o) 2+ (a * t-a
* O) 2+ (b * t-b * o) 2] 1/2 DeltaEmax = [(L * o-L * B) 2+ (a *
o-a * B) 2+ (b * ob-b * B) 2] 1/2 L * t, a * t, b * t: L *, a * of the print sample after t time has passed in Q-UV. , B * L * o, a * o, b * o: L *, a *, b * L * B, a * B, b * B of the printed sample before the UV stability evaluation: the image receiving layer of the printed sample L * a *, b * before evaluation of the image receptor itself, including L * is lightness, a * is from red (+ a *) to green (-a
Chromaticity to *, and b * is from yellow (+ b *) to blue (-b)
Indicates the chromaticity to *). DeltaE / DeltaEma
The closer x is to zero, the more stable it is.

Example 1 Vylon 300 was used as a dye acceptor, and this solution was 4 mils using a # 40 Meyer bar.
Coating was performed on a 770-28 porous film fixed on a thick PET film to prepare a type 1 image receiving film. A printed image was prepared using the magenta donor film and this image-receiving film by the method shown in FIG. 3, and its thermal stability was evaluated by maintaining it at 50 ° C. for 65 hours (aging). FIG. 4 (before aging) and FIG. 5 (after aging) show the results. Vylon 300 has a Tg of 7
Although the temperature was as low as ℃, the image was not disturbed by heat.

Comparative Example 1 . Vylon 300 solution # 1
A Type 3 image-receiving film was prepared by directly coating on a PET film having a thickness of 4 mil using a 0 Meyer bar. The thermal stability of the printed image produced by the same method as above was evaluated under the same conditions as above. FIG. 6 (before aging) and FIG. 7 (after aging) show the results. Since the Tg is low in the uniform phase image receiving layer, the printed image is disturbed, that is, the dye is diffused by heat, and the resolution is extremely lowered.

Example 2 Using Vylon GK570 as a dye acceptor, a type 1 image-receiving film was prepared in the same manner as in Example 1, a magenta printed image was prepared, and its thermal stability was evaluated under the same conditions. Figure 8 (before aging) and Figure 9
(After aging) shows the result. Vylon GK5
70 has a Tg lower than Vylon 300 (Tg = 5).
C.), the printed image was stable.

Comparative Example 2 A type 3 image-receiving film was prepared in the same manner as in Comparative Example 1 using Vylon GK570 as a dye acceptor. After a magenta printed image was formed on the film, its thermal stability was evaluated under the same conditions. Figure 1
0 (before aging) and FIG. 11 (after aging) show the results. Since the image receiving layer is a phase-homogeneous system having a low Tg, the dye cannot be prevented from diffusing in the horizontal direction due to heat, resulting in bleeding of the printed image and lack of resolution.

Comparative Example 3 . Using Vylon GK550 as a dye acceptor, a type 1 image-receiving film was prepared in the same manner as in Example 1, a magenta printed image was formed on the film, and the thermal stability of the image was evaluated under the same conditions. 12
The results are shown (before aging) and FIG. 13 (after aging). Since the Tg of Vylon GK550 is as low as −9 ° C., the effect of the porous film is erased.

Example 3 Polyester having three different Tg's [Vylon 290 (Tg = 77 ° C.), Vy
lon200 (Tg = 67 ° C.), VitelPE307
(Tg = 16 ° C.)] as a dye acceptor and fixed on a 4 mil thick PET film using a # 40 Meyer bar 77.
0-28 on the porous film, each coated individually,
After drying, it was used as a type 1 image-receiving film. A magenta donor and these image-receiving films were used to prepare a printed image by the method shown in FIG. 3, and the light resistance of the image was evaluated by exposure to ultraviolet light. FIG. 14 shows the result. Lightfastness is related to their low Tg in the same series of polymers, with polyesters with lower Tg being able to stabilize dyes. However, this is a result of using polyester resin and 770-28 porous film.

Comparative Example 4 Two polymeric materials with relatively high Tg [PVC (Tg = 88 ° C.) and Zeon 4
00X150J (Tg = 75 ° C.)] as a dye acceptor,
Type 1 image-receiving film with # 40 Meyer bar and 770-28 porous film, and type 3 with # 10 Meyer bar and 4 mil PET film.
The image receiving film of No. 1 was prepared, and a printed image was prepared by the method shown in FIG. 3 by using a magenta donor film.
FIG. 15 shows the result of light resistance evaluation performed on the light source. Little difference was seen in the lightfastness results of the images for the two types of image-receiving films due to the high Tg of both, about 80 ° C.

Example 4 Using the PVC evaluated in Comparative Example 4, an attempt was made to lower the Tg by adding di-n-butyl phthalate, and the amount of the reversible agent and the light resistance of the printed image when they were used as dye acceptors were evaluated. As the image receiving film, a type 40 film was produced using a # 40 Meyer bar, a printed image was produced using a magenta donor film by the method shown in FIG. 3, and its light resistance was evaluated. The result is shown in FIG. The PVC alone and the one having a release agent in PVC showed the same instability as shown in Comparative Example 4, but the one containing the plasticizer showed extremely different stability.

The symbols used in FIGS. 16 and 17 are as follows. (1) PVC + FC: 6 g of PVC / THF (5 wt
%) Solution + 0.13 g of FC430 / THF (5 wt
%) Solution (2) PVC + Ph 2.63: 5 g of PVC + 2.63
g of di-n-butyl phthalate + 92.37 g of THF (3) PVC + Ph2.36 + FC: 6 g of (PVC +
Ph2.36) + 0.13 g FC430 / THF (5
wt%) solution (4) PVC + Ph5: 5 g of PVC + 5 g of di-n-
Butyl phthalate + 90 g THF (5) PVC + Ph5 + FC: 6 g (PVC + Ph
5) +0.13 g of FC430 / THF (5 wt%) solution

Comparative Example 5 Using the dye-receiving material used in Example 4, a 4 mil thick PE with a # 10 Meyer bar was used.
After coating on a T film, a type 3 image-receiving film was produced, and a magenta image was produced by the same method as in Example 4, and then the light resistance thereof was evaluated. FIG. 17 shows the result. The addition of di-n-butyl phthalate to PVC has the opposite effect. Therefore, the combination of the porous film and the dye acceptor having a low Tg is closely related not only to thermal stability but also to light stability.

Example 5 A PVC film (made by Mitsubishi Kasei Vinyl) is used as a dye acceptor, which is dissolved in THF and 5w
Prepared to t% using 4 kinds of Meyer bars and 4
It was applied on a 770-28 porous film fixed on a PET film having a thickness of mil, dried and then heat-treated as shown in FIGS. 1 and 2 in this order to the image receiving layer to prepare a type 2 image receiving film. Printed images were prepared using these and a magenta donor film by the method shown in FIG. 3, and their light resistance was evaluated. FIG. 18 shows the result. Without a dye receiver, the stability of the dye image is, of course, nearly null. However, if it has a receptor,
A difference can be seen depending on the coating thickness, with a # 40 Meyer bar,
It exhibits almost constant light resistance.

Comparative Example 6 The dye receptor used in Example 5 was applied to a 4 mil thick PET film with a # 10 Meyer bar, a type 3 image receiving film, a GRL 3M image receiving film (type 3), and a 770-28 porous film. A magenta printed image was prepared in the same manner as in Example 5, and its light resistance was evaluated. FIG. 19 shows the result. None of them showed the light resistance as seen in Example 5.

Comparative Example 7 . The dye receptor used in Example 5 was coated on a 4 mil thick PET film using several Meyer bars to prepare a type 3 image-receiving film, and a magenta printed image was prepared in the same manner as in Example 5. , And their light resistance was evaluated. The result is shown in FIG. As the thickness of the dye receiving layer increased, the light fastness of the image tended to increase. However, this did not provide the thermal stability of the image.

Example 6 A type 1 image-receiving film was prepared by applying the dye receptor used in Example 5 to several kinds of porous films, and a magenta printed image was prepared by the method shown in FIG. 2. However, only three kinds shown in FIG. 11 were prepared. Is the Mass Transfer of the dye and binder from the donor layer
Did not occur. As is clear from FIG. 21, the light resistance was evaluated and the porous films 770-28 and 06 were used.
101-5 showed a good result.

Example 7 The dye receiver used in Example 5 was fixed on a 4 mil thick PET film 770-28.
Coating was performed on the porous film using several types of Meyer bars to prepare a type 1 image receiving film. Printed images were formed on these image-receiving films by the method shown in FIG. 3 using a yellow donor film, and the light resistance of the images was evaluated. FIG. 22 shows the result. There is a difference in light resistance of the yellow printed image depending on the coating thickness, and the light resistance increases as the thickness increases.

Example 8 . Using the cyan donor film and the type 1 image-receiving film produced in Example 7, a cyan image was produced by the same method as in the example, and its light resistance was evaluated. FIG. 23 shows the result. Similarly, in the cyan image, the light resistance of the cyan image changes in accordance with the coating thickness of the dye receptor, and the light resistance also increases as the thickness increases.

Example 9 An image-receiving film of type 2 was prepared in the same manner as in Example 5, and an image was formed on the image-receiving layer by the method shown in FIG. 2 using the yellow, magenta and cyan donor films, and their light resistance was evaluated. .
FIG. 24 shows the light resistance of three independent colors, and FIG. 25 shows the light resistance evaluation results of the mixed color images.

Example 10 The dye receiver used in Example 5 was fixed on a 4 mil thick PET film 770-2.
A # 1 Meyer bar was prepared by coating with a # 60 Meyer bar on 8 porous film, and the receptor solution was further coated thereon with a # 10 Meyer bar. These two types of image-receiving films were sequentially subjected to the heat treatments shown in FIGS. 1 and 2 to the image-receiving layer to prepare a type 2 image-receiving film. On top of these, using a magenta donor,
Images were formed by the method shown in FIG. 3 and their light resistance was evaluated. FIG. 26 shows the result. With the # 60 Meyer bar, the pores of the porous film were quite filled with dye receiver after drying, and on top of that,
When applied using a # 10 Meyer bar, it is no longer completely porous. However, the magenta images formed on them are very stable to UV light.

Comparative Example 8 Opaque image receptor (type 3) manufactured by Company A, which is a general commercial product, and donors (yellow, magenta,
Cyan) was used to form an image of each color on the image receptor by the method shown in FIG. 3, and their light resistance was evaluated. The result is shown in FIG. It is shown that all three colors are unstable.

Comparative Example 9 An image was formed in the same manner as in Comparative Example 8 using a commercially available opaque image receptor (type 3) manufactured by Company B and a donor film (yellow, magenta, cyan), and their light resistance was evaluated. The result is shown in FIG. It is clear that the three colors are unstable as in Comparative Example 8.

[Brief description of drawings]

FIG. 1 is a diagram showing a heat treatment method for an image receptor of the present invention.

FIG. 2 is a diagram showing a heat treatment method for an image receptor of the present invention.

FIG. 3 is a diagram showing an image forming evaluation method for an image receptor according to the present invention.

FIG. 4 is a photograph, which substitutes for a drawing, showing an image (before aging) formed by the image receptor manufactured in Example 1.

5 is a photograph as a drawing, which shows an image (after aging) formed by the image receptor prepared in Example 1. FIG.

6 is a photograph as a drawing, which shows an image (before aging) formed by the image receptor prepared in Comparative Example 1. FIG.

FIG. 7 is a photograph replacing a drawing, showing an image (after aging) formed by the image receptor prepared in Comparative Example 1.

FIG. 8 is a photograph as a drawing, which shows an image (before aging) formed by the image receptor manufactured in Example 2.

FIG. 9 is a photograph replacing a drawing, which shows an image (after aging) formed by the image receptor prepared in Example 2.

FIG. 10 is a photograph as a drawing, which shows an image (before aging) formed by the image receptor prepared in Comparative Example 2.

11 is a photograph as a drawing, which shows an image (after aging) formed by the image receptor prepared in Comparative Example 2. FIG.

FIG. 12 is a photograph replacing a drawing, showing an image (before aging) formed by the image receptor prepared in Comparative Example 3.

FIG. 13 is a photograph as a drawing, which shows an image (after aging) formed by the image receptor manufactured in Comparative Example 3.

FIG. 14 shows the result of light resistance evaluation of the image formed by the image receptor manufactured in Example 3.

FIG. 15 shows the result of light resistance evaluation of an image formed by the image receptor prepared in Comparative Example 4.

FIG. 16 shows the results of light resistance evaluation of the image formed by the image receptor manufactured in Example 4.

FIG. 17 shows the result of light resistance evaluation of the image formed by the image receptor manufactured in Example 5.

FIG. 18 shows the result of evaluation of light resistance of an image formed by the image receptor manufactured in Example 5.

FIG. 19 shows the results of evaluation of light resistance of an image formed by the image receptor prepared in Comparative Example 6.

20 shows the results of light resistance evaluation of the image formed by the image receptor prepared in Comparative Example 7. FIG.

FIG. 21 shows the result of light resistance evaluation of the image formed by the image receptor manufactured in Example 6.

FIG. 22 shows the result of light resistance evaluation of the image formed by the image receptor manufactured in Example 7.

FIG. 23 shows the result of light resistance evaluation of the image formed by the image receptor prepared in Example 8.

FIG. 24 shows the result of evaluation of light resistance of an image formed by the image receptor manufactured in Example 9.

FIG. 25 shows the result of evaluation of light resistance of an image formed by the image receptor manufactured in Example 9.

FIG. 26 shows the result of light resistance evaluation of the image formed by the image receptor manufactured in Example 10.

FIG. 27 shows the result of light resistance evaluation of the image formed by the image receptor prepared in Comparative Example 8.

FIG. 28 shows the results of evaluation of light resistance of an image formed by the image receptor prepared in Comparative Example 9.

Claims (9)

[Claims] 1. A substrate, (1) a substrate, (2) an open-pore type porous film made of a polyolefin material bonded to the substrate, and (3) a temperature of -5 ° C. filled in the holes of the porous film.
An image receptor comprising a polymer having a glass transition temperature (Tg) of 40 ° C. or lower. 2. The image receptor according to claim 1, wherein the polymer having a glass transition temperature of −5 ° C. or higher and 40 ° C. or lower is polyvinyl chloride, a copolymer of vinyl chloride and vinyl acetate, or polyester. 3. The polyvinyl chloride comprises 5-40% by weight of plasticizer, based on the total weight of the dye receiver.
The image receptor described in. 4. A (1) substrate, (2) an open-pore type porous film made of a polyolefin material bonded to the substrate, and (3) -5 ° C. filled in the holes of the porous film.
A polymer having a glass transition temperature (Tg) of 40 ° C. or higher; and a polymer having a low affinity for the porous film and a glass transition temperature of −5 ° C. or higher and 40 ° C. or lower. An image receptor having an image comprising at least one dye having a high affinity. 5. The image receptor according to claim 4, wherein the polymer having a glass transition temperature of −5 ° C. or higher and 40 ° C. or lower is polyvinyl chloride, a copolymer of vinyl chloride and vinyl acetate, or polyester. 6. The polyvinyl chloride comprises 5 to 40% by weight of plasticizer, based on total dye receiver weight.
The image receptor described in. 7. An image forming method comprising applying a dye-containing image to the surface of the image receptor according to claim 1 to cause the image receptor to receive and retain the image. 8. The method according to claim 7, wherein the polymer having a glass transition temperature of −5 ° C. or higher and 40 ° C. or lower is polyvinyl chloride, a copolymer of vinyl chloride and vinyl acetate, or polyester. 9. The polyvinyl chloride comprises 5-40% by weight of plasticizer, based on the total weight of the dye receiver.
The method described in.