JP2001232999A - Method for stabilizing transferred image - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a method for improving light resistance and weatherability and stabilizing properties with time of a transferred picture pattern. SOLUTION: The light resistance and the weatherability are improved by a method wherein an image is formed on a transfer sheet by means of an image forming apparatus and a copied transfer sheet is immersed in a UVA/HALS (a polymer may be incorporated) organic solvent solution and then, transfer is performed or the organic solvent solution is sprayed on the transferred image and then, UVA and HALS is made to permeate into the picture pattern toner layer.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pattern toner layer formed on an image forming apparatus such as an electronic copying unit, which is transferred onto a substrate surface to be transferred, or an image, a character, a pattern, etc. hand-painted with a color material. And a method for transferring these images to the surface of a substrate to be transferred, protecting these transferred images from sunlight and outside air when leaving them outdoors, and having long-term weather resistance and stabilization. More specifically, improvement of weather resistance and stabilization of heavy objects such as cars, vehicles, motorbikes, boats, ships, aircraft, outdoor large signboards, and images and patterns transferred to glass plates by the above-described means, such as patterns, etc. The method of utilizing an ultraviolet absorber (hereinafter abbreviated as UVA) and a hindered amine light stabilizer (hereinafter abbreviated as HALS)
1. An image is taken with an image forming apparatus, and prior to transfer, the copied transfer sheet on which the image is written is immersed in a UVA / HALS organic solvent solution. 2. The UVA / HALS organic solvent solution is sprayed and brought into contact with the pattern transferred to the transfer target surface. 3.
Use both methods 1 and 2.

[0002]

2. Description of the Related Art Conventionally, transcripts such as picture patterns and subtitles mainly formed by the above-mentioned color copying have been limited to indoor use. Therefore, it is sufficient that picture patterns and subtitles can be transferred clearly and exactly as original pictures. Protecting from sunlight and the outside air and keeping it stable for a long time outdoors have not been considered. In color copying, the color is reproduced by superimposing the three primary colors, but the binder of this color copy occupies 90% of the toner, and the pigment is finely dispersed in this binder to reproduce the colorability and fixing on paper. Properties (sticking properties). From the viewpoint of the chemical structure, it is a terephthalic acid (partly trimellitic acid) condensate of bisphenol A ethylene oxide 2 mol adduct. Since the color is reproduced by the melting of the toner of each color, the thickness of the resin layer of the toner binder is zero in the colorless portion, and the thickness of the fused portion of two colors and three colors is as large as several to several tens of microns. It is quite difficult to prevent the deterioration of a few micron film due to direct sunlight and ultraviolet rays. To add UVA or HALS to toner for color copying and expect a specific effect, there is a problem with this addition concentration. Was. Although toner inks based on organic solvents (for example, aqueous solutions of alcohols) instead of aqueous solutions have been developed in recent years, deterioration due to outside air or ultraviolet rays is considered to be a serious problem in organic-based rich ones. Therefore, it is common sense to take a color copy on transfer paper,
After transferring this to a transfer object, a method of coating with a film containing UVA or HALS was considered. That is, Japanese Patent Application No. 10-71574 (Japanese Patent Application Laid-Open No. H11-268493) discloses a method of transferring an image formed by an image forming apparatus including an electronic copying unit, in which a transfer layer of a hydrophilic polymer is formed on a releasable sheet. Forming a pattern toner layer on a transfer material (A) having a free functional group having a softening point of 70 ° C. or higher and a transfer layer (B) having a polymer transfer layer which is not softened or dissolved by lower alcohols; The transfer layer and the pattern toner layer are peeled together from the release sheet, transferred to the transfer target surface, the transfer layer is peeled off, and the transferred pattern toner layer has at least 5% by weight of a high boiling solvent having a boiling point of 150 ° C. or higher. Alternatively, a lower alcohol solution containing an aromatic solvent is brought into contact with the solution, and the solution is heated to swell the picture toner layer and make the picture toner layer sticky.
After the lower alcohol is removed by heating, the lower layer (U
A transfer material (C) having an acrylic resin layer (containing VA, HALS and an antioxidant) is prepared, and the acrylic resin film [peeled from the transfer material (C)] is pressure-bonded to the swollen pattern toner layer to form a pattern toner. By coating the layer, a pattern toner layer is formed by UVA, HALS contained in the acrylic resin film.
And antioxidants are claimed to protect against ultraviolet rays and outside air. A hydrophilic polymer layer is used as an upper layer so that the acrylic resin film is held as a lower layer and can be easily peeled off. However, the coating of the pattern toner layer with an acrylic resin film of several microns to several tens of microns requires skill, and it has been quite difficult to coat neatly without wrinkles.

[0003]

However, in recent years, when an object to be transferred is expanded to be transferred to a car or a motorbike used outdoors, a transfer image having weather resistance is required. There has been a demand for a technique for transferring a stable pattern image that is durable to sunlight and the outside air.

[0004]

The present inventors have conducted intensive studies to solve the above-mentioned problems. As a result, first, the followings were obtained. 1. An image obtained by taking a color copy in an image forming apparatus such as an electronic copying means. When transferring, transfer after immersing in a UVA / HALS-containing organic solvent solution. 2. Spraying a solvent solution in which UVA and HALS are dissolved in the transferred pattern to allow UVA and HALS to penetrate into the pattern. Third, after treating the pattern of 1 with a solution containing UVA and HALS, the pattern is transferred, and then 2.
Spray solution of UVA and HALS for completeness.

[0005] The image copied or drawn on the surface of the transfer sheet in the present invention refers to an image formed by electronic copying such as color copying on a transfer paper described in detail below, a crayon, a colored pencil, It includes images, characters, patterns, and the like handwritten with color materials such as magic, and is transferred to a transfer target such as a motorbike, a car body, or a signboard. An object of the present invention relates to a method for improving the light resistance and weather resistance of the transferred image. The transfer paper used here refers to a release paper such as silicon release paper coated with a water-soluble polymer such as dextrin, starch, polyvinyl alcohol (hereinafter abbreviated as PVA), polyurethane, polyester and / or acrylic resin. In this method, the image is transferred by heating to a temperature near the softening temperature of the applied resin (Japanese Patent Application Laid-Open No. Hei 4-36086, Japanese Patent Application No. Hei 8-305064,
See Japanese Patent Application No. 9-305571).

The UVA used in the present invention includes: 1. salicylic acid UVA, 2. benzophenone UVA, 3. benzotriazole UVA, 4. cyanoacrylate UV
A, 5. All kinds of UVA such as triazine UVA can be used. 1. Phenyl salicylate, p-tert-butylphenyl salicylate, p-octylphenyl salicylate, etc. 2. 2,4-dihydroxybenzophenone, 2-hydroxy-4-methoxybenzophenone, 2-hydroxy-4
-Octoxybenzophenone, 2-hydroxy-4-dodecyloxybenzophenone, 2,2'-dihydroxy-4-methoxybenzophenone, 2,2'-dihydroxy-4,4'-dimethoxybenzophenone, 2-hydroxy-4-methoxy- 3.2- (2′-hydroxy-5′-methylphenyl) benzotriazole, 2- (2′-hydroxy-5′-3)
Tert-butylphenyl) benzotriazole, 2- (2'-
Hydroxy-3 ′, 5′-di-tert-butylphenyl) benzotriazole, 2- (2′-hydroxy-3′-tert-butyl-5′-methylphenyl) -5-chlorobenzotriazole, 2- (2 '-Hydroxy-3', 5'-
Di-tert-butylphenyl) -5-chlorobenzotriazole 2- (2′-hydroxy-3 ′, 5′-di-tert-amylphenyl) benzotriazole [tinuvin 328], isooctyl-3- (3- (2H-benzo) Triazole-2
-Yl) -5-tert-butyl-4-hydroxyphenylpropionate [tinuvin 384-2] 2- (2'-hydroxy-3 ', 3 ", 4", 5 ",
6 "-tetrahydrophthalimidomethyl-5'-methylphenyl) benzotriazole, 2,2-methylenebis [4- (1,1,3,3-tetramethylbutyl) -6
(2H-benzotriazol-2-yl) phenol], 2- [2-hydroxy-3,5-di (1,1-dimethylbenzyl) phenyl] -2H-benzotriazole [tinuvin 900], 2- [2- Hydroxy-3-
Dimethylbenzyl-5- (1,1,3,3-tetramethylbutyl) -2H-benzotriazole [Tinuvin 9
28], methyl-3- [3-tert-butyl-5- (2H-
Benzotriazol-2-yl) -4-hydroxyphenyl] propionate / polyethylene glycol (PE
G) Condensates with 300: mono- and diesters of PEG
[Tinuvin 1130] 4.2-Ethylhexyl-2-cyano-3,3′-diphenyl acrylate and the like. 5.2- {4-[(2-hydroxy-3-dodecyl-or tridecyl-oxypropyl) oxy] -2-hydroxyphenyl} -4,6-bis (2,4-dimethylphenyl) -1,3,3 5-triazine [Tinuvin 400] and the like.

Further, as the HALS used in the present invention, a piperidine ring compound hindered by ortho, ortho'-bis (dimethyl) substitution (the N atom of the piperidine ring may be substituted by an alkyl group or an alkoxy group; 2,2-, 6,6-tetramethyl-piperidine derivative, 1,2,2,6,6-
Pentamethyl-piperidine derivatives or their N-
It is an alkoxy derivative. A compound [dimethyl-1- (2-hydroxyethyl) -4-hydroxy-2,2,6,6-tetramethylpiperidine succinate polycondensate] and B compound N, N ′ ″-1,2
-Ethanediylbis [N-[[4,6-bis [butyl (1,2,2,6,6-pentamethyl-4-piperidinyl) amino] -1,3,5-triazin-2-yl] amino] propyl] -N ', N "-dibutyl-N', N"
1-to-1 mixture of -bis (1,2,2,6,6-pentamethyl-4-piperidinyl) -1,3,5-triazine-2,4,6-triamine [Tinuvin 111FD] 2,6,6-pentamethyl-4-piperidinyl)-[[3,5-bis 1,1-dimethylethyl]
-4-Hydroxyphenyl] methyl] butylmalonate [tinuvin 144] bis (1-octyloxy-2,2,6,6-tetramethyl-4-piperidinyl) sebacate [tinuvin 123] bis (1,2,2 2,6,6-Pentamethyl-4-piperidinyl) sebacate and mono (1,2,2,6)
Mixture of 6-pentamethyl-4-piperidinyl) methyl sebacate [Tinuvin 292] In addition, ADK STAB LA-52, 57, 6
2 (Asahi Denka Kogyo) is known. An antioxidant may be used in combination with UVA and HALS. In this case, an o, o'-di-tert-butylphenol derivative is used as an antioxidant. In addition, there are phosphorus antioxidants.

In the first invention (Claim 1), an image is taken on a transfer sheet and immersed in an organic solvent solution containing UVA and HALS. However, since the aromatic solvent dissolves the pattern toner layer, the image is not formed. It cannot be used because it collapses. Organic solvent solutions other than aromatic solvents are recommended. Alcohols having a boiling point of 60 to 150 ° C., solvent naphtha and naphthenic hydrocarbons are preferred. An emulsion prepared by dissolving UVA / HALS in an organic solvent and adding an emulsifier cannot be used because a water-soluble polymer such as PVA in a transfer layer of a transfer paper is dissolved. In the second invention (claim 2), an organic solvent solution containing UVA and HALS is sprayed, but the same organic solvent solution as in the first invention is recommended. The solvent used in the present invention having a boiling point of 60 ° C. or higher and preferably 150 ° C. or lower is n-propyl alcohol, isopropyl alcohol, and butanols are n-butanol, isobutanol, secondary butanol, and tertiary butanol. As the solvent naphtha, a solvent naphtha having a relatively low boiling point in the above boiling point range is preferable. Examples of the naphthenic hydrocarbon include Isosol 200, Naphthesol LL, and Naphthesol LS-20 (all products of Nippon Petrochemical Co., Ltd.). Of these, isopropyl alcohol and solvent naphtha are most preferred in terms of boiling point and cost.

An organic solvent solution of UVA / HALS is sprayed on the transferred picture image, and natural drying and various heating methods can be applied to volatilize the organic solvent. Various heating methods such as a hair dryer, an electric heat dryer, and irradiation of infrared rays and far infrared rays are possible. The temperature is 60 ° C. or higher, preferably 150 ° C. or lower, and the lower the temperature, the better, because there is no thermal deformation of the image.

Hereinafter, the present invention will be described with reference to examples.
It does not limit the invention. Parts indicate parts by weight and% indicates% by weight. Example 1 [Benzotriazole-based UVA + HALS / IPA solution] Raw materials used: Tinuvin 384-2 as UVA [benzotriazole-based, manufactured by Ciba Specialty Chemicals Co., Ltd. (hereinafter abbreviated as Ciba SC), chemical structure described above] HALS Tinuvin 123 [manufactured by Ciba SC, chemical structure described above, N-octyloxy-substituted hindered amine] High boiling point solvent: Bz (benzyl alcohol) Lower alcohol: IPA (isopropyl alcohol) Formulation (protective solution 1): tinuvin 384-25 0.0% (%) Tinuvin 123 2.5 IPA 92.5 Formulation (Comparative Solution 1): Bz 9.0 IPA 91.0 Each of the formulas was weighed out, stirred until uniform, (protective solution) 1) and (Comparative solution 1) were prepared. Comparative liquid 1
Is sometimes referred to as a fixing solution.

Transfer paper CV-1 [transfer paper manufactured by Shinzen Co., Ltd., modified with silicone resin (modified with fluororesin, water-soluble zirconium compound, and water-resistant agent) coated with high saponification degree PVA] and IPAPS manufactured by Minolta Co., Ltd. Take a color copy with, peel off the pattern toner layer and the modified PVA layer together,
Attach the pattern toner layer and the modified PVA layer to the car body wet with (Comparative Solution 1), apply a squeegee several times, apply a slip sheet, press and apply warm air, wait for cooling, and then Sprinkle water and pour off PVA as if rubbed with soft, soft urethane foam. Use a dry cloth to wipe off the moisture. Warm air was applied to spray (protective liquid 1) or (comparative liquid 1) on the surface (the sprayed weight of protective liquid 1 or comparative liquid 1 was 11.5 g / A-4 plate). The organic solvent was volatilized by heating with a far infrared ray so that the surface temperature would be 80 to 120 ° C. Dry at 105 ± 5 ° C. for 10 minutes and run on a sunshine weatherometer. The thickness of the color copy is 5μ. Note: * 1: Gloss measurement after 100 hours of accelerated weathering test Note: * 2: Hue type C: Cyan blue M: Magenta red Y: Yellow * 3: 100 hours and 200 hours treatment with sunshine weatherometer * 4 : △ E is the square root of △ L2 + △ a2 + △ b2, △ is the rate of change The tester and test conditions are shown below.

Table 1 [Benzotriazole UVA + HALS solution treatment] Sample Name ・ Protective liquid 1 ・ Comparative liquid 1 ・ ・ ・ Gloss 60 ° * 1・ 97 ・ 73 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Type of hue * 2 ・ C ・M ・ Y ・ C ・ C ・ M ・ Y Weather resistance ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Test ・ Gloss retention% 100 hours 96, 96, 94, 80, 81, 80・ Gloss retention% 200 hours ・ 88 ・ 87 ・ 89 ・ 74 ・ 77 ・ 67 ・ ・ ・··························· Discoloration resistance △ E * 4 · 2.7 · 8.6 ··· ... 1. Tester Accelerated weatherability testability test: Sunshine weather meter, Suga Test Equipment Co., Ltd. WEL-SUN-DC Color difference measurement: Self-spectrophotometer Shimadzu Corporation UV-35
0A type glossiness measurement: Digital variable angle glossmeter, Suga Test Equipment Co., Ltd. UG
1. V-5D type Test conditions Accelerated weatherability testability test: JIS K 5400, 9.
Same as 8.1. a. Irradiation time--above b. Rainfall-18 minutes during 120 minute irradiation, c. Indoor temperature-
-43 ± 3 ° C Color difference measurement: JIS Z 8722, JIS Z 873
According to 0. Gloss measurement: According to JIS K 5400, 7.6 (60-degree specular gloss). Discussion of Example 1: Gloss 60 ° and discoloration resistance ΔE in Table 1
As can be seen from the table, the protection liquid 1 treated product is UVA and HALS
Has been considerably improved.

Example 2 (Salicylic acid UVA and HALS
Organic solvent treatment) [Salicylic acid UVA and HALS (ADK STAB LA6
2) Solution treatment] IPA manufactured by Minolta Co., Ltd. was applied to transfer paper CV-1.
Take a color copy with PS, and in advance,
Thoroughly apply the comparative solution 1 of Example 1 to the white tile (2
6.5 × 40.7 cm), and the picture toner layer and the PVA layer that were color-copied there were peeled together.
Paste, squeegee about 20 times, remove excess fixer and air, apply pressure while applying hot air, and remove wrinkles of image toner while applying hot air. When the crimping is completed, wait until it cools. When completely cooled, rinse the PVA film of the transfer paper with water. Rinse away with soft, soft urethane foam. Use a dry cloth to wipe it down. The transfer surface was kept horizontal, and a fixing solution [mixed solution of IPA and Bz] was sprayed on this surface. The adhesion amount of the fixing solution was about 20 g. The surface temperature is 110 ±
Heat at 5 ° C. for 10 minutes. Evaporation of about 17 g of IPA was confirmed. The pattern toner layer was tacky. At this temperature,
Here, a lower alcohol solution of UVA / HALS (contents described below) was sprayed. The adhesion amount of the lower alcohol solution was 20 g.

Contents of lower alcohol solution of UVA / HALS: Biosorb 90 (pt-butylphenyl salicylate, salicylic acid UV manufactured by Kyodo Yakuhin Co., Ltd.)
A) 1.0 g of ADK STAB LA-62 (1, 2, 2, 2)
6,6-pentamethyl-4-piperidyl / tridecyl 1,2,3,4-butanetetracarboxylate, 100 g of IPA / toluene (9: 1) mixed solvent containing 0.5 g of HALS manufactured by Asahi Denka Kogyo KK A sample treated with a mixed solvent of alcohol UVA / HALS IPA / toluene was used as Example (2-1), and UVA / HA was used.
A sample which was not treated with the LS mixed solvent was used as a comparative example (2
-2) (up to treatment with a mixed solution of IPA and Bz). The thickness of the color copy is 5μ. Note: * 1 to * 4 are the same as in Example 1. Dry at 105 ± 5 ° C. for 10 minutes and run on a sunshine weatherometer.

Table 2 [Salicylic acid UVA and HALS (ADK STAB LA62) solution treatment] ··· Sample name · Example (2-1) · Comparative example (2-2) ···・ ・ ・ ・ ・ ・ ・ ・ Gloss 60 ° * 1 ・ 98 ・ 75・ ・ ・ Acceleration ・ Hue type * 2 ・ C ・ M ・ Y ・ C ・ M ・ Y Weather resistance ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・・ ・ ・ ・ ・ ・ ・ ・ Test / Gloss retention% 100 hours ・ 97 ・ 96 ・ 95 ・ 80 ・ 83 ・ 81・ ・ ・ * 3 ・ Gloss retention% 200 hours ・ 88 ・ 87・ 89 ・ 75 ・ 78 ・ 69 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Discoloration resistance △ E * 4 ・ 2.8 ・ 8.5

Consideration of Example 2: As can be seen from the gloss of 60 ° and the color fastness ΔE in Table 2, Example (2-1) was UV
It can be seen that A and HALS solution treatment (spray) has improved.

Example 3 (UVA / HALS and treatment with an organic solvent containing a polymer) * 5: Acrylic resin: Hyokaku Kagaku LO-73HW * 6: Polyester resin: 1: 3 mixture of Toyobo Byron 200 and Byron 300 In the same manner as in Example 1, a color copy was taken on the transfer paper CV-1 using IPAPS, and transferred to a white tile according to Example 2. (The following two lines are blank)

Table 3 (UVA / HALS and polymer-containing organic solvent treatment)・ ・ ・ No. Polymer name ・ 3-1 Acrylic resin * 5 ・ 3-2 Polyester * 6 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・・ ・ ・ ・ Gloss 60 ° * 1 ・ 99 ・ 98 ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Promotion・ Hue type * 2 ・ C ・ M ・ Y ・ C ・ M ・ Y Weather resistance ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・・ ・ ・ Test / Gloss retention% 100 hours ・ 98 ・ 97 ・ 97 ・ 98 ・ 97 ・ 96・ ・ ・ ・ ・ ・ ・ * 3 ・ Gloss retention% 200 hours ・ 90 ・ 92 ・ 93 ・ 89 ・ 87 ・ 91 ································ As in Example 2, a fixing solution was sprayed on this surface. The adhesion amount of the fixing solution was about 20 g. This is the surface temperature 11
Heated at 0 ± 5 ° C. for 10 minutes. Evaporation of about 17 g of IPA was confirmed. The pattern toner layer was tacky. At this temperature, an organic solvent in which 20% of the polymer shown in Table 3 was dissolved in the lower alcohol solution of UVA / HALS of Example 2 was sprayed twice at this temperature. The adhesion amount of the lower alcohol solution was about 40 g in total of two sprays. 105
After drying at ± 5 ° C. for 10 minutes, it was applied to a sunshine weatherometer. The results are shown in Table 3. The thickness of the color copy is 4.5μ. The thickness of the polymer is 1 for acrylic resin
0 μ and 11 μ in the case of polyester resin.

Discussion of Example 3: Both the acrylic resin combination (3-1) and the polyester resin combination (3-2) shown in Table 3 were used in the UVA / HALS solution (2-1) of Example 2.
And blank (2-2), in terms of gloss 60 ° and discoloration resistance ΔE. The antioxidant ADK STAB AO-50 [n-
Octadecyl-3- (4'-hydroxy-3 ', 5'-
[Di-t-butylphenyl) propionate] 0.1% compound was also tested in the same manner as (3-1).
Almost equivalent results were obtained.

Example 4 (organic solvent treatment of benzotriazole-based UVA and alkoxy-substituted N-type HALS) and Example 5 (addition of acrylic resin to organic solvent solution of example 4) As in example 2, transfer paper CV At -1, a color copy was taken with IPAPS, and transferred to a white tile according to Example 1. As in Example 2, a fixing solution was sprayed on this surface. The adhesion amount of the fixing solution was about 20 g. This was heated at a surface temperature of 110 ± 5 ° C. for 10 minutes. About 17g of IP
A volatilization was confirmed. The pattern toner layer has become tacky. At this temperature, as a lower alcohol solution of UVA / HALS, tinuvin 384-2 [manufactured by Ciba Specialty Chemicals Co., Ltd. (hereinafter abbreviated as Ciba SC) benzotriazole-based UVA, the chemical structure of which was shown above. . 1.0 g and Tinuvin 123 [manufactured by Ciba SC, alkoxy-substituted N-based HALS, the chemical structures of which are shown above. ]
0.5 g IPA / toluene (9: 1) mixed solvent 10
0 g solution] was sprayed twice. Adhesion amount of this solution / 1
Twice was 20 g. The amount of adhesion was about 40 g in total of two sprays. Dry at 105 ± 5 ° C. for 10 minutes and run on a sunshine weatherometer.

In Example 4, the acrylic resin used in Example 2 was used in the organic solvent solution of Example 3. The results are summarized in Table 4. Table 4 [Benzotriazole-based UVA and alkoxy-substituted N-based HALS solution treatment] and [Acrylic resin-containing benzotriazole-based UVA and alkoxy-substituted N-based HALS solution treatment] (five lines left blank) ...・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Sample name ・ Example 4 ・ Example 5 ・ ・ ・ ・・ ・ ・ ・ ・ ・ ・ ・ Gloss 60 ° * 1 ・ 97 ・ 98 ・ ・ ・ ・ ・ ・ ・ ・ ・・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ Acceleration ・ Hue type * 2 ・ C ・ M ・ Y ・ C ・ M ・ Y ········ Test / gloss retention% 100 hours · 97 · 96 · 95 · 99 · 9 • 99 ······· ...・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ ・ * 3 ・ Gloss retention% 200 hours ・ 88 ・ 87 ・ 89 ・ 98 ・ 98 ・ 97 ・ ・ ・ ・ ・ ・ ・ ・·························································· ··············· The thickness of the color copy of Example 4 is 5 μm. The film thickness of Example 5 was 8 μm.

Discussion of Embodiments 4 and 5 Embodiment 4
The benzotriazole-based UVA and alkoxy-substituted N-based HALS used in both Example 5 and Example 5 are extremely effective. Further, by adding an acrylic resin to the film to increase the film thickness, deterioration due to UV is considerably prevented. I found that I could do it. The polyester resin used in Example 3 (Toyobo Byron 200 and Byron 3
00: 1: 3) is also in the accelerated weathering test (100 hours), but each of C, M, and Y is 98-9.
9, a satisfactory result can be expected. Example 6 (Comparison of workability) Comparison with the method of Japanese Patent Application No. 10-71574 Transfer paper CV-1 [Transfer paper manufactured by Shinzen Co., Ltd. = Japanese Patent Application No. 10-7]
A color copy is taken on the 1574 transfer material (A) using IPAPS, and the pattern is transferred to the tile surface in the same manner as in Example 2, and the transfer surface is kept horizontal. Spray the fixer,
Heat at a surface temperature of 110 ° C. ± 5 ° C. for 10 minutes. The image surface becomes tacky. Up to this point, the present invention and Japanese Patent Application No. Hei 10
The step of -71574 is the same. In the method of the present invention,
Because it is a method of spraying and heating an organic solvent solution containing UVA / HALS etc., even if 10 amateurs go for the first time,
There was no single mistake. On the other hand, in the method of Japanese Patent Application No. 10-71574, a separately prepared transfer material (C) [as a lower layer (UV
A, HALS and an antioxidant-containing acrylic resin layer). Peeling off the lower acrylic resin layer and pasting it neatly on the adhesive image surface requires manual dexterity, and the image surface is tacky. Therefore, if the acrylic resin film is distorted and sticks in one place on the image surface, the entire correction cannot be performed. Even if ten amateurs went for the first time, only two of them could succeed from the beginning.

────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] August 22, 2000 (2008.2.
2)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0021

[Correction method] Change

[Correction contents]

In Example 5 , the acrylic resin used in Example 3 was used for the organic solvent solution of Example 4 . The results are summarized in Table 4. Table 4 [Benzotriazole UVA and alkoxy-substituted N
-Based HALS solution treatment] and [Acrylic resin-containing benzotriazole-based UVA and alkoxy-substituted N-based HALS solution treatment] (below 5 lines blank)

Claims (4)

[Claims] 1. Prior to forming an image on a transfer layer of a transfer sheet by an image forming apparatus including an electronic copying unit and transferring the image to a transfer target surface, the transfer sheet on which the image has been formed is subjected to an ultraviolet absorber and a hindered amine-based transfer sheet. A method for stabilizing an image, wherein the image is once immersed in an organic solvent solution containing a light stabilizer and transferred. 2. When transferring a pattern toner layer formed on a transfer layer of a transfer sheet to a transfer target base material surface by an image forming apparatus or the like including an electronic copying unit, the transferred pattern is
A method for stabilizing an image, comprising contacting and permeating an organic solvent solution containing an ultraviolet absorber and a hindered amine light stabilizer by spraying or the like. 3. An image according to claim 1, which is pretreated for immersion in an organic solvent solution containing an ultraviolet absorber and a hindered amine light stabilizer, and is transferred to a target surface.
A method for stabilizing an image, characterized by contacting and permeating the organic solvent solution containing the ultraviolet absorbent and the hindered amine light stabilizer according to the above by spraying or the like. 4. A single or mixed solvent selected from the group consisting of propanols, butanols, solvent naphthas, and naphthenic hydrocarbons having a boiling point of 60.degree. 4. The method according to claim 1, wherein the agent is dissolved.