WO2003053711A1 - Materiau de thermographie - Google Patents
Materiau de thermographie Download PDFInfo
- Publication number
- WO2003053711A1 WO2003053711A1 PCT/JP2002/013397 JP0213397W WO03053711A1 WO 2003053711 A1 WO2003053711 A1 WO 2003053711A1 JP 0213397 W JP0213397 W JP 0213397W WO 03053711 A1 WO03053711 A1 WO 03053711A1
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- WIPO (PCT)
- Prior art keywords
- heat
- sensitive recording
- recording material
- methyl
- anilino
- Prior art date
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Classifications
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/30—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using chemical colour formers
- B41M5/333—Colour developing components therefor, e.g. acidic compounds
- B41M5/3333—Non-macromolecular compounds
- B41M5/3335—Compounds containing phenolic or carboxylic acid groups or metal salts thereof
- B41M5/3336—Sulfur compounds, e.g. sulfones, sulfides, sulfonamides
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/30—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using chemical colour formers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/30—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using chemical colour formers
- B41M5/333—Colour developing components therefor, e.g. acidic compounds
- B41M5/3333—Non-macromolecular compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M2205/00—Printing methods or features related to printing methods; Location or type of the layers
- B41M2205/04—Direct thermal recording [DTR]
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/30—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using chemical colour formers
- B41M5/323—Organic colour formers, e.g. leuco dyes
- B41M5/327—Organic colour formers, e.g. leuco dyes with a lactone or lactam ring
- B41M5/3275—Fluoran compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/30—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using chemical colour formers
- B41M5/337—Additives; Binders
- B41M5/3372—Macromolecular compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/30—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using chemical colour formers
- B41M5/337—Additives; Binders
- B41M5/3375—Non-macromolecular compounds
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/30—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used using chemical colour formers
- B41M5/337—Additives; Binders
- B41M5/3377—Inorganic compounds, e.g. metal salts of organic acids
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/40—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography
- B41M5/41—Base layers supports or substrates
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/40—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography
- B41M5/42—Intermediate, backcoat, or covering layers
- B41M5/426—Intermediate, backcoat, or covering layers characterised by inorganic compounds, e.g. metals, metal salts, metal complexes
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41M—PRINTING, DUPLICATING, MARKING, OR COPYING PROCESSES; COLOUR PRINTING
- B41M5/00—Duplicating or marking methods; Sheet materials for use therein
- B41M5/26—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used
- B41M5/40—Thermography ; Marking by high energetic means, e.g. laser otherwise than by burning, and characterised by the material used characterised by the base backcoat, intermediate, or covering layers, e.g. for thermal transfer dye-donor or dye-receiver sheets; Heat, radiation filtering or absorbing means or layers; combined with other image registration layers or compositions; Special originals for reproduction by thermography
- B41M5/42—Intermediate, backcoat, or covering layers
- B41M5/44—Intermediate, backcoat, or covering layers characterised by the macromolecular compounds
Definitions
- -Recorded images may fade due to chemicals (plasticizers, oils and fats in wrap film, organic solvents in pen, ink for inkjet printer, etc.)
- the properties that the thermal recording material should have are (1) high sensitivity (high density is obtained), and (2) high whiteness of the background (non-image part). (3) excellent image storability after printing, (4) excellent light fastness, (5) excellent chemical resistance, (6) sharp and high image quality, (7) ) Each color and hue should be good and vivid when recording a full color image using the inkjet method, etc. (8) Thermal head matching is good, and thermal head abrasion resistance is low. (9) It has a feeling like plain paper, (10) It has printability suitable for printing on the heat-sensitive recording layer and printability without bleeding, and (11) It has been applied to high-performance printers such as high-speed printers. Applicability, (12) Environmental suitability, etc. It is put, one of the performance without compromising, and the at the same time satisfy the child all of these various performances are required. However, at present, there is no thermal recording material that can satisfy all of the above-mentioned properties at the same time.
- the thermal head In order to effectively use the heat transmitted from the thermal head, it is effective to provide the support with heat insulation. As a specific means, it is effective to provide as much voids as possible in the support. is there.
- a heat-sensitive recording material for example, an undercoat layer containing a pigment having a high oil absorption is provided, the amount of a binder used in the undercoat layer is reduced as much as possible, and the undercoat layer contains hollow particles.
- the thermal recording layer slimmer In addition, to make effective use of heat, it is effective to make the thermal recording layer slimmer. Considering that the heat capacity of the heat-sensitive recording layer contributes to the sensitivity, the heat-sensitive recording layer contains many components that do not contribute to color development, and the heat capacity is wasted. Examples of the components include release agents and waxes that suppress the stick between the thermal head and the recording layer, oil-absorbing pigments that absorb the molten component, binders for dispersing the material, and imparting film strength. , Etc. correspond. Since the amount of heat consumed by these amounts to about 20 to 30%, an improvement in sensitivity of about 10 to 15% can be expected by halving the amount used.
- sensitivity can be improved by reducing the content of pigments and binders in the recording layer.
- the sensitivity can be increased more than expected by reducing the amount of binder, so contributions other than heat capacity may be considered, but the cause is unknown.
- the binder content is simply reduced, the head matching properties and coating strength of the thermal head will deteriorate, so the material distribution is as efficient as possible, that is, the necessary components are used in the required layers in the minimum amount. It is important to:
- Thermal recording materials have been widely used for facsimile in offices and homes, and as recording papers for various printers.
- papers around us such as high-quality papers such as PPC paper, notebooks, and report paper
- PPC paper high-quality papers
- office facsimile machines have recently shifted to the PPC type, which uses plain paper. From this point of view, (1) thickening the base paper, which is the support, to strengthen the stiffness, (2) imparting a low gloss surface, writing and printing suitability by providing a protective layer, etc. It is important to get closer to high quality paper.
- thermosensitive recording material of the present invention since 4-hydroxybenzenesulfonanilide is contained as the electron-accepting compound, the sensitivity can be more effectively improved, the image storability can be improved, and The head matching is improved, and the background capri (capri concentration in the background) is not increased.
- R 1 represents a hydroxyl group or an alkyl group
- R 2 represents one Ph, one NH—Ph, one Ph—OR 3 , one NH—CO—NH—Ph
- R 3 represents an alkyl group.
- Ph represents a phenyl group, which may be substituted with a substituent containing one SO 2 R 2 .
- the present invention provides a thermosensitive recording layer, wherein the thermosensitive recording layer contains a sensitizer, wherein the sensitizer is 2-benzyloxynaphthalene, dimethylbenzyl oxalate, m-terphenyl, ethyleneglycoltrilule.
- the thermosensitive recording according to the first aspect which is at least one selected from one ter, p-benzyl biphenyl, 1,2-diphenoxymethylbenzene, diphenylsulfone, and 1,2-diphenoxyethane. Material.
- R 1 represents a hydroxyl group or an alkyl group
- R 2 represents one Ph, one NH—Ph, —Ph—OR 3 , one NH—CO—NH—Ph
- R 3 represents an alkyl group
- Ph represents a phenyl group, and may be substituted with a substituent containing one S 0 2 R 2 .
- the electron-accepting compound represented by the general formula (1) is used as one of the color-forming components. Sensitivity can be improved, and the long-term storage stability of the formed image, chemical resistance, and head matching of the thermal head can be improved at the same time.
- the center line average roughness (R a75 ) of the heat-sensitive recording surface is 2.0 O m or less, it is possible to suppress uneven coloring, to increase the sensitivity while keeping the background force blur low, and to improve the sensitivity of the formed image.
- ink jet recording aptitude can be improved at the same time.
- the present invention is the thermosensitive recording material according to the seventeenth aspect, wherein the support contains waste paper pulp.
- the above-mentioned color-imparting colorless dye may be used alone in a single heat-sensitive recording layer, or two or more kinds thereof may be used in combination.
- the known electron-accepting compound can be appropriately selected and used. Particularly, from the viewpoint of suppressing background capri, a phenolic compound, a salicylic acid derivative, and a polyvalent metal salt thereof are preferable.
- phenolic compound examples include 2,2,1-bis (4-hydroxyphenol) propane (bisphenol A), 4-t-butylphenol, 4-phenylphenol, 4-hydroxydiphenoxide, and 1,1 '' 1-bis (4-hydroxyphenyl) cyclohexane, 1,1,1-bis (3-chloro mouth_4-hydroxyphenyl) cyclohexane, 1, -bis (3-chloro-4-hydroxyphenyl) 1-2-ethylbutane , 4, 4, 1 sec — Isooctylidene dipheno — Nore, 4, 4,-sec-Butyrene diphenoeno, 4 — tert — Octynolefeneno, 4 _ p — Methisolefeninolepheno 1,4,4,1-Methylcyclohexene V-Denphenol, 4,4,1-Isopentylidenephenol, 4-Hydroxy-4-isopropyloxydiphenyl Sulfonic,
- the volume average particle size can also be easily measured by a laser diffraction type particle size distribution analyzer (for example, LA500 (manufactured by Horiba)).
- LA500 manufactured by Horiba
- the amount of the sensitizer selected from the group is preferably 50% by mass or more, more preferably 70% by mass or more of the total amount of the sensitizers contained in the layer. Is more preferable.
- Examples of the other sensitizers include aliphatic monoamides, aliphatic bisamides, stearyl ureas, di (2-methylphenoxy) ethane, di (2-methoxyphenoxy) ethane, and ⁇ -naphthol-1- ( ⁇ -methylbenzyl) ether
- a phenol compound particularly a hindered phenol compound is effective.
- the thermal recording layer may contain a mordant for the purpose of preventing bleeding during inkjet recording.
- the coating solution After being prepared as a coating solution as described above, the coating solution is applied to the surface of the support to form a heat-sensitive recording layer.
- a coating method using a curtain coater is employed as a coating method for applying the coating liquid, and the coating liquid is dried after application. After drying, it is preferably smoothed by a calendering process and used.
- the amount of the heat-sensitive recording layer to be applied is not particularly limited, and is usually preferably about 2 to 7 g / m 2 in terms of dry mass. In the case of the heat-sensitive recording material according to the second aspect, the dry mass is usually preferably 5 g / m 2 or less, more preferably 4 g_m 2 or less.
- the total content of inorganic pigments selected from aluminum hydroxide, violin and amorphous silica is 10 to 90% based on the total solids (mass) of the coating solution for forming the protective layer. % By mass is preferable, and 30 to 70% by mass is more preferable.
- other pigments such as barium sulfate, zinc sulfate, talc, clay, and colloidal silica are used in combination within a range that does not impair the effects of the present invention (especially, improvement of preservability and impartation of handleability and sealability). May be.
- polyhydric aldehyde compounds and dihydrazide compounds are preferred.
- the content ratio of the crosslinking agent is preferably about 2 to 30% by mass, and more preferably 5 to 20% by mass, based on the mass of the water-soluble polymer.
- the mixing ratio of the inorganic pigment selected from aluminum hydroxide, kaolin and amorphous silica to the water-soluble polymer in the protective layer is determined by the type of the inorganic pigment, its particle size, and the water-soluble polymer.
- the amount of the water-soluble polymer is preferably 50 to 400% by mass, and more preferably 100 to 250% by mass, based on the mass of the inorganic pigment. More preferred.
- waste paper pulp (100% by mass) or a mixture of waste paper pulp and virgin pulp having a content of less than 50% by mass is used to form a support for a heat-sensitive recording material by a conventional method.
- a high-viscosity water-soluble polymer In order to adjust the coating solution to a desired viscosity, it is effective to add a high-viscosity water-soluble polymer. Particularly, a high-molecular-weight sodium carboxymethylcellulose salt is most preferable because it does not adversely affect the sensitivity.
- the coating speed of the curtain coating is set to 200 to 2000 m / min, and the falling speed of the liquid film at the coating point is set to 140 to 1 of the coating speed.
- the coating speed means the traveling speed of the object to be coated in curtain coating
- the coating point means the falling point where the liquid film falls
- the falling speed means that the liquid film is applied to the coating point. It means the speed at the point where you arrived.
- the coating solution for the heat-sensitive recording layer obtained above was applied by a ten-coater so that the coating amount after drying was 4 g Zm 2, and then dried. A layer was formed. Thereafter, the surface of the formed heat-sensitive recording layer was subjected to a calendering treatment to obtain a heat-sensitive recording material (1) of the present invention.
- the following components were mixed and dispersed by a ball mill to obtain a dispersion E having a volume average particle diameter of 0.7 ⁇ .
- the volume average particle size was measured in the same manner as in Example 1.
- Dispersion A 60 parts Dispersion B 1 20 ⁇ P Dispersion C 1 20 ⁇ ⁇ Dispersion E 30 parts Dispersion D 1 0 1 ⁇ Zinc stearate 30% dispersion 1 5 parts Paraffin wax (30%) 1 5 Part of carboxymethyl cell mouth sodium salt
- Example 8 In Example 1, a 2.5% aqueous solution (adhesive) of polyvinyl alcohol used for preparing dispersions A, B and C was replaced with acetoacetyl-modified polyvinyl alcohol (Gose Filmer Z 210, manufactured by Nippon Synthetic Chemical Co., Ltd.). 2. In place of the 5% aqueous solution, and with the dispersions A, B and C obtained in the same manner as in Example 1, mixed with the coating solution for the heat-sensitive recording layer, Except for adding 13 parts), a heat-sensitive recording material (8) of the present invention was obtained in the same manner as in Example 1. The viscosity of the prepared coating solution for the thermal recording layer was 19 OmPa ⁇ s, and the surface tension was 33 mNZm.
- the heat-sensitive recording materials (21) to (25) of the invention were obtained.
- the viscosities of the heat-sensitive recording layer coating solutions prepared in Examples 21 to 25 were 180, 170, 190, 170, and 18 OmPas, respectively, and the surface tensions were 35, 34, and 34, respectively.
- the values were 35, 34 and 35 mN / m.
- Example 14 Even with the sensitizers used in Examples 14 to 20, good performance was obtained in the same manner as in the heat-sensitive recording material (1) in Example 1.
- Example 2 the electron-donating colorless dye used in! Good color development and image storability were obtained while keeping the background capri low.
- the lithographic coating method was more useful in increasing the sensitivity.
- the support contained waste paper pulp (Example 9), there was no hindrance to various performances.
- a high quality paper having a smoothness of 150 seconds according to JIS-8119 is prepared as a support, and the coating liquid for a support undercoat layer obtained above is applied to the surface of the high quality paper by a blade coater. Coating was performed so that the coating amount after re-drying was 8 gZm 2, and an undercoat layer was formed. Due to the application of the undercoat layer, the smoothness of the support according to JIS_819 was 350 seconds. Then, the upper the undercoat layer, a thermal recording layer coating solution obtained above was applied as a coating amount after by Li dried force one Tenko one data one is 4 g Zm 2, dried A heat-sensitive recording layer was formed.
- thermosensitive coloring layer (Coating composition for thermosensitive coloring layer)
- Dispersion A 60 parts Dispersion B ... 120 parts Dispersion C ... 120 parts Dispersion E ... 30 parts Dispersion D ... e 0 1 part Zinc stearate 30% dispersion ... ⁇ 15 parts paraffin wax (30%) ⁇ ⁇ ⁇ 15 parts carboxymethylcellulose sodium salt
- Example 30 in place of the 2.5% aqueous solution of polyvinyl alcohol (adhesive) used for preparing dispersions A, B and C, a sulfo-modified polyvinyl alcohol (Gohselan L 3266, Nippon Gohsei) was used.
- a thermosensitive recording material (39) of the present invention was obtained in the same manner as in Example 30, except that a 2.5% aqueous solution was used.
- Example 30 a 2.5% aqueous solution (adhesive) of polyvinyl alcohol used for preparing dispersions A, B, and C was replaced with diacetone-modified polyvinyl alcohol (D500, manufactured by Unitika) at 2.5%.
- a 5% aqueous solution of adipic dihydrazide (crosslinking agent) was added to the coating solution for the thermosensitive recording layer prepared by mixing the dispersions A, B and C obtained in the same manner as in Example 30 in place of the aqueous solution.
- a heat-sensitive recording material (40) of the present invention was obtained in the same manner as in Example 30, except that 13 parts was added. (Example 37)
- the resulting mixture was further emulsified with a zinc stearate having a volume average particle size of 0.15; 15, 25 parts of Chukyo Yushi Co., Ltd.) and 25 parts of a 2% aqueous solution of 2-sulfosuccinic acid 2-ethylhexyl ester sodium salt 125 parts were mixed to obtain a coating solution for a protective layer.
- thermosensitive recording layer containing the electron-accepting compound represented by the general formula (1) together with the electron-donating colorless dye was formed by curtain-coating the coating solution, and was dried at a constant rate.
- the heat-sensitive recording material (34) (64) of the present invention dried at a maximum surface temperature of 65 ° C. or less in the process, the whiteness of the background portion is particularly high, and the high color density ( (High sensitivity) is obtained. Good), good image storability after printing, good ink jet suitability with improved contact angle, excellent chemical resistance, low head wear and excellent general head matching. . That is, high sensitivity, background whiteness, image storability, inkjet suitability, chemical resistance, and thermal head matching (abrasion resistance) could be simultaneously satisfied.
- compositions were mixed to obtain a coating solution for a heat-sensitive recording layer.
- a high quality paper having a smoothness of 150 seconds according to JIS-8119 is prepared as a support, and the coating liquid for a support undercoat layer obtained above is applied to the surface of the high quality paper with a blade coater.
- the coating was performed so that the coating amount after drying was 8 g Zm 2 to form an undercoat layer.
- the smoothness of the support according to JIS-8119 was 350 seconds.
- Example 6 Dimethylbenzyl oxalate (HS3520R-N, manufactured by Dainippon Ink and Chemicals, Inc.) was used in place of 2-benzyloxynaphthalene (sensitizer) used in the preparation of the dispersion C of 1).
- Example 61 Except that m-terphenyl, ethylene glycol triethylene, p-benzylbiphenyl, 1,2-diphenoxymethylbenzene, diphenylsulfone, or 1,2-diphenoxetane were used, respectively. In the same manner as in the above, heat-sensitive recording materials (81) to (87) of the present invention were obtained.
- the surface of each of the obtained heat-sensitive recording materials was heated by applying an iron at 120 ° C. to develop color, and the surface state was observed according to the following criteria.
- a high quality paper having a smoothness of 150 seconds according to JI SP 81 19 was prepared as a support, and the coating liquid for the support undercoat layer obtained above was dried on the surface of the high quality paper with a blade coater.
- the undercoat layer was formed so that the amount of the subsequent coating was 8 g / m 2 . Due to the application of the undercoat layer, the smoothness of the support according to JI SP 8119 was 350 seconds.
- the heat-sensitive recording layer coating solution obtained above was
- thermosensitive coloring layer (Coating composition for thermosensitive coloring layer)
- Dispersion B 1 20 parts-Dispersion C 1 20 ⁇ P-Dispersion E 30 parts • Dispersion D 101 1 ⁇ ⁇ zincate 30% dispersion 15 parts
- Example 90 an amorphous silica (Mizukasil P832, Mizusawa Chemical Industry Co., Ltd.) was used instead of 40 parts of the calcite-based light calcium carbonate (Univa-1 70; inorganic pigment) used in the preparation of the dispersion D. 20 parts) or 40 parts of aluminum hydroxide (Heidilite H42, manufactured by Showa Denko KK), respectively, in the same manner as in Example 90, except that the heat-sensitive recording material of the present invention (103)- (104) was obtained.
- amorphous silica Mozukasil P832, Mizusawa Chemical Industry Co., Ltd.
- Recycled paper (50 g / m 2) composed of 70% waste paper pulp and 30% LBK P and having a smoothness of 170 seconds according to JI SP 8 119 instead of the high quality paper used as the support in Example 90. )) was used in the same manner as in Example 90 to obtain a heat-sensitive recording material (108) of the present invention.
- the following composition was dispersed by a sand mill to prepare a pigment dispersion having a volume average particle size of 2 m.
- the volume average particle size was measured in the same manner as in Example 90.
- thermosensitive recording materials (100) to (128) of the present invention and the comparative thermosensitive recording materials (129) to (133) obtained above were measured and evaluated as follows. The results of the measurement and evaluation are shown in Table 4 below.
- thermosensitive recording material (100) (128) of the present invention contains the compound represented by the general formula (1), and each coating layer is formed by a curtain coating method.
- the center line average roughness (R a75 ) of the heat-sensitive recording surface is 2.0_im or less, a particularly high color density (high sensitivity) can be obtained while maintaining a low background capri particularly in the background.
- Good print suitability good image storability after printing, contact angle
- ink jet printing it has inkjet suitability, has excellent chemical resistance, has little head abrasion, and has excellent thermal head matching. That is, high sensitivity, background whiteness, image storability, inkjet suitability, chemical resistance, and thermal head matching (abrasion resistance) could be satisfied at the same time. Further, no coloring unevenness was observed.
Description
Claims
Priority Applications (4)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
KR10-2004-7009707A KR20040070257A (ko) | 2001-12-20 | 2002-12-20 | 감열기록재료 |
EP02786191A EP1466753B1 (en) | 2001-12-20 | 2002-12-20 | Thermal recording material |
DE60218221T DE60218221T2 (de) | 2001-12-20 | 2002-12-20 | Wärmeempfindliches aufzeichnungsmaterial |
US10/499,433 US7192904B2 (en) | 2001-12-20 | 2002-12-20 | Thermal recording material |
Applications Claiming Priority (8)
Application Number | Priority Date | Filing Date | Title |
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JP2001387680A JP2003182231A (ja) | 2001-12-20 | 2001-12-20 | 感熱記録材料 |
JP2001388132A JP3579392B2 (ja) | 2001-12-20 | 2001-12-20 | 感熱記録材料 |
JP2001-387680 | 2001-12-20 | ||
JP2001387679A JP3474557B2 (ja) | 2001-12-20 | 2001-12-20 | 感熱記録材料の製造方法 |
JP2001-387678 | 2001-12-20 | ||
JP2001-388132 | 2001-12-20 | ||
JP2001387678A JP2003182229A (ja) | 2001-12-20 | 2001-12-20 | 感熱記録材料 |
JP2001-387679 | 2001-12-20 |
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Publication Number | Publication Date |
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WO2003053711A1 true WO2003053711A1 (fr) | 2003-07-03 |
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Application Number | Title | Priority Date | Filing Date |
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PCT/JP2002/013397 WO2003053711A1 (fr) | 2001-12-20 | 2002-12-20 | Materiau de thermographie |
Country Status (7)
Country | Link |
---|---|
US (1) | US7192904B2 (ja) |
EP (1) | EP1466753B1 (ja) |
KR (1) | KR20040070257A (ja) |
CN (1) | CN100339235C (ja) |
DE (1) | DE60218221T2 (ja) |
ES (1) | ES2280594T3 (ja) |
WO (1) | WO2003053711A1 (ja) |
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WO2006038381A1 (ja) * | 2004-09-30 | 2006-04-13 | Nippon Paper Industries Co., Ltd. | 感熱記録体の製造方法 |
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- 2002-12-20 DE DE60218221T patent/DE60218221T2/de not_active Revoked
- 2002-12-20 KR KR10-2004-7009707A patent/KR20040070257A/ko not_active Application Discontinuation
- 2002-12-20 US US10/499,433 patent/US7192904B2/en not_active Expired - Fee Related
- 2002-12-20 ES ES02786191T patent/ES2280594T3/es not_active Expired - Lifetime
- 2002-12-20 CN CNB02825659XA patent/CN100339235C/zh not_active Expired - Fee Related
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Cited By (2)
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---|---|---|---|---|
WO2005084958A1 (de) * | 2004-03-04 | 2005-09-15 | Papierfabrik August Koehler Ag | Verfahren zur herstellung eines thermopapiers |
WO2006038381A1 (ja) * | 2004-09-30 | 2006-04-13 | Nippon Paper Industries Co., Ltd. | 感熱記録体の製造方法 |
Also Published As
Publication number | Publication date |
---|---|
CN100339235C (zh) | 2007-09-26 |
DE60218221T2 (de) | 2007-10-31 |
US20050054527A1 (en) | 2005-03-10 |
DE60218221D1 (de) | 2007-03-29 |
ES2280594T3 (es) | 2007-09-16 |
CN1612812A (zh) | 2005-05-04 |
EP1466753A4 (en) | 2005-03-30 |
KR20040070257A (ko) | 2004-08-06 |
EP1466753A1 (en) | 2004-10-13 |
EP1466753B1 (en) | 2007-02-14 |
US7192904B2 (en) | 2007-03-20 |
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