WO2004045861A1 - インク受容層付記録用シートおよびインク受容層形成用塗布液 - Google Patents
インク受容層付記録用シートおよびインク受容層形成用塗布液 Download PDFInfo
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- WO2004045861A1 WO2004045861A1 PCT/JP2003/014813 JP0314813W WO2004045861A1 WO 2004045861 A1 WO2004045861 A1 WO 2004045861A1 JP 0314813 W JP0314813 W JP 0314813W WO 2004045861 A1 WO2004045861 A1 WO 2004045861A1
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- WIPO (PCT)
- Prior art keywords
- receiving layer
- ink receiving
- recording sheet
- ink
- metal compound
- 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
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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
- B41M5/50—Recording sheets characterised by the coating used to improve ink, dye or pigment receptivity, e.g. for ink-jet or thermal dye transfer recording
- B41M5/52—Macromolecular coatings
- B41M5/5218—Macromolecular coatings characterised by inorganic additives, e.g. pigments, clays
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- A—HUMAN NECESSITIES
- A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
- A61P—SPECIFIC THERAPEUTIC ACTIVITY OF CHEMICAL COMPOUNDS OR MEDICINAL PREPARATIONS
- A61P31/00—Antiinfectives, i.e. antibiotics, antiseptics, chemotherapeutics
- A61P31/04—Antibacterial agents
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B41—PRINTING; LINING MACHINES; TYPEWRITERS; STAMPS
- B41J—TYPEWRITERS; SELECTIVE PRINTING MECHANISMS, i.e. MECHANISMS PRINTING OTHERWISE THAN FROM A FORME; CORRECTION OF TYPOGRAPHICAL ERRORS
- B41J2/00—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed
- B41J2/005—Typewriters or selective printing mechanisms characterised by the printing or marking process for which they are designed characterised by bringing liquid or particles selectively into contact with a printing material
- B41J2/01—Ink jet
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2933—Coated or with bond, impregnation or core
- Y10T428/2938—Coating on discrete and individual rods, strands or filaments
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
- Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
- Y10T428/00—Stock material or miscellaneous articles
- Y10T428/29—Coated or structually defined flake, particle, cell, strand, strand portion, rod, filament, macroscopic fiber or mass thereof
- Y10T428/2913—Rod, strand, filament or fiber
- Y10T428/2933—Coated or with bond, impregnation or core
- Y10T428/294—Coated or with bond, impregnation or core including metal or compound thereof [excluding glass, ceramic and asbestos]
- Y10T428/2958—Metal or metal compound in coating
Definitions
- the present invention relates to a recording sheet with an ink receiving layer. More specifically, it is possible to print with uniform density and sharpness, and it can strongly fix dyes, etc., and is excellent in water resistance, weather resistance, fading resistance, etc., and has sufficient strength
- the present invention relates to a recording sheet with an ink receiving layer capable of obtaining a printed matter having the following.
- the present invention also relates to a coating liquid for forming an ink receiving layer for forming the ink receiving layer.
- Ink-jet printing enables printing with the same image quality as conventional multi-color printing and color photographic printing, and can be compared to conventional printing when printing is quick and easy, and when the number of prints is small. Due to its low cost, it is rapidly spreading in various applications.
- a recording sheet in which a base sheet is coated with a water-soluble polymer such as polyvinyl alcohol to form an ink receiving layer, and such a sheet is formed using an aqueous ink.
- Printing was being done.
- the printed matter obtained in this manner has insufficient water resistance, and has a problem that the image quality is deteriorated when the printed matter is placed in a high humidity environment or is covered with water due to wetness.
- Also used for recording There was a problem that a clear and high-precision image could not be obtained due to insufficient ink absorptivity of the sheet.
- JP-A-62-149475 describes a recording sheet on which an ink receiving layer containing spherical particles such as silica having an average particle diameter of 1 to 50 ⁇ m is formed.
- Japanese Patent Publication No. 3-24906 discloses a recording medium having an ink receiving layer containing a cationic hydrated aluminum oxide.
- Japanese Patent Publication No. 19037/1991 describes a recording medium having a receiving layer containing cationic colloidal silica.
- JP-A-4-115984 describes a recording sheet in which a layer made of pseudo-boehmite alumina is provided on a base material, and a layer made of porous silica is further provided on the layer.
- JP-A-6-55829 discloses that a porous silica particle having an average particle diameter of 2 to 50 ⁇ m, an average pore diameter of 8 to 50 nm, and a pore volume of 0.8 to 2.5 cc / g is provided on a substrate.
- a recording sheet having a layer and a pseudo-boehmite porous layer obtained by drying alumina sol thereon is described.
- Most of these recording sheets are intended for printing with dye-based inks.Dye-based inks are inferior in weather resistance, so that printed materials may be discolored or discolored by contact with ultraviolet light, oxygen, or ozone. There are drawbacks such as dripping. Such a problem was particularly noticeable when used outdoors.
- pigment inks having excellent weather resistance have been used even in the ink jet printing method.
- pigment particles are usually particles having a particle size of 10 to 500 nm, and the conventional ink receiving layer does not have pores capable of effectively absorbing such large particles.
- the ink is not absorbed by the layer and remains on the surface of the ink receiving layer, that the water resistance is insufficient, and that the pigment particles are removed due to abrasion and the color is discolored.
- the present invention has been made in order to solve the above-mentioned problems of the prior art, and can be used not only for dye-based inks but also for pigment-based inks.
- An object of the present invention is to provide a coating solution for forming a receiving layer.
- An object of the present invention is to provide a recording sheet having an ink receiving layer and a coating liquid for forming an ink receiving layer for forming an ink receiving layer.
- the ink receiving layer is ⁇ (i) fibrous crystal particles in which a cationic hydrated metal compound is supported on the surface;
- the fibrous crystal grains basic magnesium sulfate (MgS 0 4 ⁇ 5M g ( OH) 2 -nH 2 0), basic calcium sulfate (CaS0 4 * 5Ca (OH) 2 'nH 2 0).
- Basic sulfate barium BaS0 4 '5Ba (OH) 2' nH 2 0
- basic sulfate strike opening Nchiumu SrS_ ⁇ 4 .5Sr (OH) 2 'nH 2 ⁇
- calcium silicate Ca 2 Si_ ⁇ 4 .NH 2 O
- And is preferably at least one selected from the group consisting of
- the fibrous crystal particles have an average fiber diameter (D) in the range of 0.1 to 2 ⁇ m and an average fiber length (L) of:! It is preferable that the ratio (aspect ratio) between the average fiber length (L) and the average fiber diameter (D) be in the range of 5 to 500.
- the cationic hydrated metal compound is preferably a compound represented by the following formula (1) or a compound obtained from a metal salt represented by the following formula (2).
- M is a metal cation having three or more valences
- X is an anion
- a is the valence of a metal cation
- b is the valence of a union, 1 ⁇ ⁇ 5, n ⁇ 2a, m.
- M of the cationic hydrated metal compound is preferably Al 3+ . Further, it is preferable to include inorganic fine particles.
- the inorganic fine particles are alumina sol, alumina gel, silica sol, silica gel, One or more selected from silica'alumina sol, silica'alumina gel, zirconia sol, zirconia gel, and clay mineral are preferred.
- the inorganic fine particles are preferably alumina sol, which is pseudo-boehmite alumina, or Z or alumina gel.
- the ink receiving layer preferably has a pore size in the range of 30 to 200 nm, and preferably has a pore volume of 30 to 2000 nm in a volume of 0.15 to 2.0 ml / g. Ma
- the coating liquid for forming an ink-receiving layer comprises: (i) fibrous crystal particles having a surface on which a cationic hydrated metal compound is supported; and (ii) a binder comprising water and / or water. It is characterized by being dispersed in a dispersion medium comprising an organic solvent.
- the recording sheet with an ink receiving layer includes a base sheet and an ink receiving layer formed on the base sheet.
- the substrate sheet used in the present invention is not particularly limited, but resin film sheets such as PET and polychlorinated vinyl, various papers, steel plates, cloths, and the like are used.
- the ink receiving layer formed on the base sheet is composed of fibrous crystal particles (hereinafter referred to as cationic (Abbreviated as fibrous crystal particles carrying a hydrated metal compound) and (II) a binder.
- fibrous crystal particles having a surface on which a cationic hydrated metal compound is supported are used.
- the fibrous crystal particles used in the present invention have a fiber diameter (D) of about 0.1 to 2 m, more preferably 0.5 to 1 ⁇ m, and a fiber length (L) of about 1 to 2 ° 0 ⁇ , It is more preferably in the range of 3 to 100 ⁇ . Furthermore, the ratio (aspect ratio) force S between the fiber length (L) and the fiber diameter (D) is preferably in the range of 5 to 500, more preferably 10 to 200.
- the fibrous crystal particles When such fibrous crystal particles are included, the fibrous crystal particles, particularly the fibrous crystal particles having a high aspect ratio, become entangled with each other without being densely packed, thereby forming voids. It is easy to be porous and can form an ink receiving layer with a pore volume that can receive both dye and pigment inks, and the strength of the ink receiving layer itself can be increased by entanglement of fibrous crystal particles It is.
- an ink receiving layer having a pore volume capable of receiving both dye and pigment inks and to increase the strength of the ink receiving layer itself.
- the fibrous crystal particles in such a range, the transparency of the ink receiving layer is high and a clear print can be obtained.
- the fiber diameter (D) of the fibrous crystal particles is less than 0.1 ⁇ m, although depending on the length of the fibrous crystal particles, the pore volume increases but the strength of the receiving layer becomes insufficient.
- the fiber diameter (D) of the fibrous crystal particles exceeds The transparency of the receiving layer decreases, and the sharpness of the printed matter becomes insufficient.
- the fiber length (L) of the fibrous crystal particles is less than 1 m, the pore volume becomes insufficient, depending on the fiber diameter of the fibrous crystal particles, and the ink absorption amount and ink absorption speed decrease. Printing performance tends to decrease.
- the fiber length (L) of the fibrous crystal particles exceeds 200 m, the viscosity of the obtained coating solution will increase, and it will be difficult to control the film thickness.
- the aspect ratio is less than 5, the effect of using the fibrous crystal particles cannot be sufficiently obtained, the pore volume becomes insufficient, the ink absorption amount and the ink absorption speed are reduced, and the printing performance tends to be reduced. is there.
- the aspect ratio exceeds 500, the viscosity of the obtained coating solution becomes high, and it becomes difficult to control the film thickness.
- the size of such fibrous particles can be determined by taking a scanning electron microscope photograph (SEM photograph), measuring the fiber diameter and fiber length of 20 particles, and calculating the average value of these values.
- Such fibrous crystal particles are not particularly limited as long as they have the above-mentioned shape and size.
- those made of a basic alkaline earth metal sulfate compound or an alkaline earth metal silicate compound are preferable.
- basic magnesium sulfate MgS0 4 '5Mg (OH) 2' nH 2 0
- basic calcium sulfate CaS_ ⁇ 4 '5Ca (OH) 2' nH 2 0
- basic barium sulfate B aS ⁇ 4 '5Ba ( ⁇ H) 2 ' nH 20
- basic strontium sulfate SrSO 4 ⁇ 5 Sr ( ⁇ ⁇ ) 2 ⁇ ⁇ 20
- calcium silicate Ca 2 SiO 4 'nH 2 ⁇
- an ink receiving layer having a large pore size (an ink receiving layer having an average pore diameter of 30 nm or more is easily obtained), a large pore volume, and excellent strength can be obtained. And even cheaper Is desirable.
- such a basic alkaline earth metal sulfate compound can be used to form a sulfate of an alkaline earth metal and an alkaline earth hydroxide, for example, in an autoclave.
- the size of the fibrous crystals of the basic alkaline earth metal sulfate compound can be adjusted by the hydrothermal reaction conditions.
- a fibrous crystal particle having a surface on which a cationic hydrated metal compound is supported is used.
- a cationic hydrated metal compound is added to such a dispersion of fibrous crystal particles to support the dispersion, whereby fibrous crystal particles supporting the cationic hydrated metal compound can be obtained.
- M is a trivalent or higher metal cation
- X is an anion
- a is the valence of the metal thione
- b is the valence of the aion, 1 n n 5 and n 2 a Yes, 1 ⁇ m.
- metal cations preferably trivalent or tetravalent metal cation, Al 3 +
- Zr 4+, Ti 4 +, metal cation of G a 4 + or the like is preferred.
- Anions are halogen ions, sulfate ions, nitrate ions, organic anions and the like.
- Such a cationic hydrated metal oxide can be produced by a known method.
- aluminum hydroxide is dissolved in hydrochloric acid under pressure or by adding a dissolution aid (aluminum chloride). It can be obtained by aging in the presence of a polymerization accelerator such as sulfuric acid.
- a solution of the above-mentioned cationic hydrated metal compound is mixed with a dispersion of fibrous crystal particles in a solvent such as water, methanol, ethanol, isopropyl alcohol, or a mixed solvent thereof, and an alkali is added as necessary.
- the reaction is then carried out by adjusting the pH of the dispersion.
- the pH at this time varies depending on the type of crystalline alumina particles used, but may be generally in the range of 2 to 9. More preferably, it is in the range of 3-6.
- Such a cationic hydrated metal compound can also be prepared from a metal salt represented by the following formula (2).
- an aqueous solution of a metal salt represented by the following formula (2) was added to the fibrous crystal particle dispersion.
- an alkali afterwards and adjusting the pH to the above range, cationic hydrated metal compound-supported fibrous crystal particles having a surface on which the cationic hydrated metal compound is supported can be obtained.
- M is Al 3 + .
- the surface of the fibrous crystal particles becomes remarkably cationic, and the obtained ink receiving layer has a high streaming potential (surface charge amount). For this reason, dyes and pigments can be firmly fixed, so that they have excellent water resistance.
- the amount of the cationic hydrated metal compound to be supported (the amount to be added is the amount to be supported. In the case of the metal salt represented by (2), the amount to be added; If both are added, the total amount) is the amount of cationic crystalline particles per mole of fibrous crystal particles, for example, basic alkaline earth metal sulfate compound particles. It is preferable to add the hydrated metal compound in the range of 0.01 to 5 moles, more preferably 0.1 to 2 moles, as calculated as the metal oxide.
- the amount is less than 0.01 mol per mol of the fibrous crystal particles, the flow potential of the obtained ink receiving layer is low, so that the dyes and pigments cannot be firmly fixed and the water resistance is poor. Will be enough.
- the supported amount of the cationic hydrated metal compound exceeds 5 mol per 1 mol of the fibrous crystal particles, the dispersion stability of the obtained cationic hydrated metal compound-supported fibrous crystal particles tends to decrease, and When printing is performed, the dye is adsorbed only to the upper layer of the ink receiving layer, and the image quality tends to deteriorate.
- the concentration of the fibrous crystal particles at the time of processing by adding the cationic hydrated metal compound to the fibrous crystal particle dispersion liquid is determined if the above-mentioned cationic hydrated metal compound-supported fibrous crystal particles having a high flow potential are obtained.
- concentration of the fibrous crystal particles at this time is in the range of 2-7.
- the thus obtained cationic hydrated metal compound-supported fibrous crystal particles have the same fibrous shape as the basic alkaline earth metal sulfate compound particles.
- the flow rate of the cationic crystalline hydrated metal compound-supported fibrous crystal particles be in the range of it tt l to 200 ⁇ eq / g, and more preferably in the range of 2 to 100 ⁇ eq / g.
- the dye when printed on the resulting ink receiving layer, the dye is unevenly fixed to the upper layer in the receiving layer and is fixed. In some cases, the ink cannot be fixed to the lower layer or the pores may be blocked in the upper layer.Therefore, when multiple colors of ink of different colors are printed, the ink is not absorbed or bleeding occurs. There is.
- the streaming potential of such a cationic hydrated metal compound-supported fibrous crystal particle can be determined using a streaming potential measurement device (PCD 03PH, manufactured by MUTEC Corporation) as follows.
- aqueous dispersion concentration of 1% by weight as a solid component
- anionic polyelectrolyte Sodium Polyethene Sulphonate: Pes-Na
- the amount of charge is calculated by the following formula.
- V electrolyte titer (L)
- the pore volume in the range of 30 to 2000 nm is 0.2 to 2.0 ml / g, preferably 0.2 to 1.01111 ⁇ .
- an ink receiving layer can be obtained. Therefore, in addition to dye ink, pigment ink is also suitable for printing ink.
- the ink absorption speed is high, there is no bleeding and excellent printability.
- the surface has a high streaming potential, it is possible to firmly fix dyeing and obtain an ink receiving layer having excellent water resistance, weather resistance, fading resistance, and the like.
- the fibrous crystal particles supporting the cationic hydrated metal compound may be used after the surface is hydrophobized as necessary.
- the surface of the cationic crystalline hydrated metal compound-supported fibrous crystal particles is used after being hydrophobized, adsorption or intrusion of water into the ink receiving layer hardly occurs, and the water resistance of the ink receiving layer is improved.
- the method of hydrophobizing the cationic hydrated metal compound-supported fibrous crystal particles is not particularly limited, but the cationic hydrated metal compound-supported fibrous crystal particles may be treated with monomethylsilane, monomethyltrimethoxysilane, monomethyltriethoxysilane, Conventionally known methods such as treatment with a coupling agent such as dimethyldimethoxysilane, dimethylvinylmethoxysilane, phenyltriethoxysilane, diphenyldimethoxysilane, vinyltrichlorosilane, and y-glycidoxypropyltrimethoxysilane Is mentioned.
- a coupling agent such as dimethyldimethoxysilane, dimethylvinylmethoxysilane, phenyltriethoxysilane, diphenyldimethoxysilane, vinyltrichlorosilane, and y-glycidoxypropyltrimethoxysilane Is mentioned.
- organic compounds such as polybutyl alcohol, modified polybutyl alcohol, polybutylpyrrolidone, and other hydrophilic polymers can be used. Furthermore, these can be modified and used.
- binders may be used alone or in combination.
- the amount of the binder used varies depending on the type of the binder, but is preferably 5 to 60% by weight of the fibrous crystal particles supporting the cationic hydrated metal compound, and more preferably 5 to 60% by weight. Is preferably 10 to 40% by weight.
- the ratio is less than / 0 , the adhesion between the ink receiving layer and the base sheet is insufficient, so that the ink receiving layer is easily peeled off, and the strength of the ink receiving layer is insufficient. If the ratio exceeds / 0 , the ink acceptance may decrease or the water resistance may decrease.
- the ink receiving layer may contain components normally contained in the ink receiving layer, such as an antioxidant, organic polymers such as celluloses, bio fibers, inorganic polymers, and inorganic fine particles, in addition to the above components.
- inorganic fine particles it is preferable to further include inorganic fine particles.
- the inorganic fine particles are preferably at least one selected from the group consisting of alumina sol, alumina gel, silica sol, silica gel, silica 'alumina sol, silica' anoremina gel, zirconia sol, zirconia gel, and clay mineral. It is. Particularly, the inorganic fine particles are preferably alumina sol or alumina gel which is pseudo-boehmite alumina.
- the above-mentioned ink receiving layer containing (i) fibrous crystal particles having a surface on which a cationic hydrated metal compound is supported, and (ii) a binder
- the method is not particularly limited as long as it can be formed, a known method can be adopted, and a preferable method may be adopted depending on the type of the base material.
- a coating liquid for forming an ink-receiving layer described below is applied to a substrate sheet by a spray method, a mouth coater method, a blade coater method, a no coater method, a curtain coater method, etc., and then dried. Can be formed. Further, the base sheet may be used after being subjected to a primer treatment in advance.
- the ink receiving layer thus formed generally has a pore size in the range of 30 to 2000 nm, and the pore volume in the pore size in this range is 0.15 to 2.0 m 1 Zg, preferably 0.2 to 2 ⁇ g. 0 ml / g, more preferably 0.2 to 1.0 ml / g.
- the pore volume of the pore size of 30 to 2000 nm in the ink receiving layer is less than the lower limit, the pigment-based ink cannot be sufficiently absorbed, and the pigment particles remain on the surface of the ink receiving layer. Peeling may occur and the printed material may discolor.
- the pore volume of the ink receiving layer is larger than the above upper limit, the fixability of the pigment particles is lowered, and since most of the pigment particles after printing are collected below the ink receiving layer (near the surface of the base material), an image is formed. May lack sharpness.
- the thickness of the ink receiving layer formed on the base sheet can be arbitrarily selected depending on the thickness of the sheet, the use of the printed matter, the type of the printing ink, and the like, but is usually 5 to 100 ⁇ . It is desirable to be within the range. If the thickness of the ink receiving layer is less than 5 ⁇ , the absorption capacity of the ink may be insufficient, causing bleeding, or the color may be reduced when the amount of the ink used is reduced. In addition, if the thickness of the ink-receiving layer is larger than 100 m, it is difficult to obtain by one coating, and applying multiple coatings is not economical. Cracking or peeling during drying.
- the pore volume of the ink receiving layer formed on the substrate sheet is measured by the following mercury intrusion method.
- the recording sheet with the ink receiving layer prepared was inserted into a measuring cell (0.5 cc volume), and the product was manufactured by QUANTA CHROME.
- the pore volume in the range of 3.4 to 30 nm and 30 to 2000 nm is determined from the measured pore distribution, and the pore volume per receptor layer lg is determined from the weight of the receptor layer in the recording sheet.
- the coating liquid for forming an ink receiving layer according to the present invention comprises the above-mentioned fibrous crystal particles in which the cationic hydrated metal compound is supported on the ⁇ surface, and (ii) a binder, comprising water and water. It is dispersed in a dispersion medium comprising Z or an organic solvent.
- organic solvent isopropyl alcohol, ethanol, butanol and the like can be used alone or in combination.
- the concentration of the fibrous crystal particles in which the cationic hydrated metal compound is supported on the surface (i) in the coating solution is appropriately selected depending on the coating method, but is preferably 2 to 40% by weight, and particularly preferably. It is desirably in the range of 5 to 30% by weight. Further, the amount of the binder is preferably 5 to 60% by weight, more preferably 10 to 40% by weight of the fibrous crystal particles supporting the cationic hydrated metal compound.
- the coating liquid according to the present invention improves the adhesiveness between the ink receiving layer and the base sheet, improves the strength and weather resistance of the ink receiving layer, and adjusts the pore structure of the ink receiving layer.
- it may contain an antioxidant, an organic polymer such as celluloses, a biofiber, an inorganic polymer, inorganic fine particles, and the like. The invention's effect
- the ink receiving layer is composed of (i) fibrous crystal particles in which a surface cationic hydrated metal compound is supported, and The pore volume in the pore diameter range is large, and the pore surface has a high flow potential, which makes it possible to rapidly absorb the ink and firmly fix the dye, so that excellent water resistance, weather resistance,
- the fibrous crystalline particles carrying the cationic hydrated metal compound are fibrous, the strength of the ink receiving layer is high, and the recording sheet with the ink receiving layer is a printing method. Regardless of the type, even when printing with various inks, the printing characteristics are excellent, clear printing is possible, and it is also suitable for printing with pigment-based inks.
- Example 1 by using the coating liquid for forming an ink receiving layer of the present invention, an ink receiving layer having the above-described excellent characteristics can be formed.
- Basic magnesium sulfate as alkaline earth metal compound (Ube Materials Co., Ltd .: Moss Heidi, solids concentration 84 wt./., Average fiber diameter 0.75 ⁇ m, average fiber length 12) ( ⁇ m) 2 Kg dispersed in 13.8 Kg of pure water A slurry was prepared.
- the solid content was separated by filtration, dried at 110 ° C for 16 hours, and further mixed with a mixer (Hitsuchi Seisakusho). Pulverized by VA-W27) to prepare cationic hydrated metal compound-supported fibrous crystal particles (1) powder for forming an ink receiving layer. (Furthermore, the fibrous crystal particles are hardly pulverized in the pulverization with the mixer, and it is understood that they have solidified.)
- the average fiber diameter of the powder of the fibrous crystal particles (1) supporting the cationic hydrated metal compound was 0.75 ⁇ m, the average fiber length was 12 ⁇ m, and the streaming potential was 31 ⁇ eqZg.
- this coating liquid (1) was applied on a PET film using a bar coater, dried, and then heat-treated at 140 ° C. to produce a recording sheet (1).
- the thickness of the ink receiving layer was 30 ⁇ m.
- the pore volume of the receiving layer was measured by the mercury intrusion method described above.
- the obtained recording sheet (1) was printed as described below and evaluated. Table 1 shows the results.
- a 2 cm square solid coating pattern W was printed on the obtained recording sheet using an ink jet printer (mast erjet, manufactured by GRAPHTE C). Colors were printed using magenta, black, cyan, and yellow, and the density was changed by changing the output.
- the density was measured with a color reflection densitometer (manufactured by Nippon Denshoku Industries Co., Ltd .: KRD-2200). If the concentration is 1.2 or more, it can be used without any problem.
- the printed piece was immersed in water to observe the dissolution of the dye or pigment, and evaluated according to the following criteria.
- the printed area was rubbed with a finger, and the change in image quality and the presence or absence of pigment attached to the finger were examined.
- the average fiber diameter of the cationic hydrated metal compound-supported fibrous crystal particles (2) powder was 0.75 m, the average fiber length was 12 m, and the streaming potential was 42 eqZg.
- a coating liquid (2) for forming an ink receiving layer was prepared in the same manner as in Example 1, except that the powder of the fibrous crystal (2) supporting the cationic hydrated metal compound was used. Preparation of recording sheet (2)
- this coating solution was applied on a PET film using a bar coater, dried, and then heat-treated at 140 ° C. to obtain a recording sheet (2).
- the thickness of the ink receiving layer was also 30 ⁇ .
- the obtained recording sheet was printed in the same manner as in Example 1 and evaluated.
- Example 1 91 parts by weight of a dispersion obtained by dispersing the cationic hydrated metal compound-supported fibrous crystal particles (1) powder in water so as to have a solid content concentration of 11.4% by weight, and a concentration of 10%
- a coating liquid (3) for forming an ink receiving layer was prepared in the same manner as above except that 9 parts by weight of an aqueous solution of polybutyl alcohol of 9% by weight was mixed.
- this coating solution was applied on a PET film using a bar coater, dried, and then heat-treated at 140 ° C. to obtain a recording sheet (3).
- the thickness of the ink receiving layer was also 30 m.
- the obtained recording sheet was printed in the same manner as in Example 1 and evaluated.
- Example 1 the cationic hydrated metal compound-supported fibrous crystal grains (1)
- An ink was prepared in the same manner except that 80 parts by weight of a dispersion obtained by dispersing the powder in water to a solid concentration of 11.4% by weight and 20 parts by weight of a 10% by weight aqueous solution of polybutyl alcohol were mixed.
- a coating solution (4) for forming a receptor layer was prepared.
- this coating solution was applied on a PET film using a bar coater, dried, and then heat-treated at 140 ° C. to obtain a recording sheet (4).
- the thickness of the ink receiving layer was also 30 ⁇ m.
- the obtained recording sheet was printed in the same manner as in Example 1 and evaluated.
- Basic magnesium sulfate as basic alkaline earth metal compound (Ube Materials Co., Ltd .: Moss Heidi, solid content concentration 84% by weight, average fiber diameter 0.75 m, average fiber length 12 m) 2 kg of pure water 13.8 kg
- This O key sheet zirconium chloride solution as a cationic hydrated metal compound molar ratio (Kanto Chemical Co. Zr0 2 concentration of 10 wt%) to basic magnesium sulfate was added 468.
- the cationic hydrated metal compound-supported fibrous crystal particles obtained above (5) 86 parts by weight of a dispersion obtained by dispersing the powder in water so as to have a solid concentration of 11.4% by weight; The mixture was mixed with 14 parts by weight of an aqueous alcohol solution to prepare a coating liquid (5) for forming an ink receiving layer.
- the coating liquid (5) was applied on a PET film by using a bar coater, dried, and then heat-treated at 140 ° C. to prepare a recording sheet (5).
- the thickness of the ink receiving layer was 30 m.
- the pore volume of the receiving layer was measured by the mercury intrusion method described above.
- the obtained recording sheet (5) was printed and evaluated in the same manner as in Example 1.
- Example 1 2 kg of calcium silicate (manufactured by Ube Materials Co., Ltd .: Zonoheidi, solid content: 97 wt./., Average fiber diameter: 0.3 ⁇ m, average fiber length: 6 ⁇ ni) was used as the fibrous crystal particles. Except for the above, a cationic hydrated metal compound-supported fibrous crystal particle (6) powder was prepared in the same manner. The average fiber diameter of the cationic hydrated metal compound-supported fibrous crystal particles (6) powder is 0. 3 ⁇ , average fiber length was 3.1! 1, and streaming potential was 12 eqZg.
- this coating liquid (6) was applied on a PET film using a bar coater, dried, and then heat-treated at 140 ° C. to produce a recording sheet (6).
- the thickness of the ink receiving layer was 30 ⁇ m.
- the pore volume of the receiving layer was measured by the mercury intrusion method described above.
- the obtained recording sheet (6) was printed and evaluated in the same manner as in Example 1.
- Example 6 80 parts by weight of a dispersion obtained by dispersing the cationic crystalline hydrated metal compound-supported fibrous crystal particles (6) powder in water so as to have a solid content of 11.4% by weight, and a 10% by weight polymer A coating liquid (7) for forming an ink receiving layer was prepared in the same manner except that 20 parts by weight of a bull alcohol aqueous solution was mixed.
- this coating solution (7) is coated on a PET film using a bar coater.
- the cloth was dried, and then heat-treated at 140 ° C. to produce a recording sheet (7).
- the thickness of the ink receiving layer was 30 / zm.
- the pore volume of the receiving layer was measured by the mercury intrusion method described above.
- the obtained recording sheet (7) was printed and evaluated in the same manner as in Example 1.
- Cataroid AS-3 Average particle diameter 200 nm, primary particle diameter 9 nm, pseudo-boehmite alumina
- this coating solution was applied onto a PET film using a bar coater, dried, and then heat-treated at 140 ° C. to obtain a recording sheet (8).
- the thickness of the ink receiving layer was also 30 ⁇ .
- the obtained recording sheet was printed in the same manner as in Example 1 and evaluated.
- this coating solution was applied on a PET film using a bar coater, dried, and heated at 140 ° C. to obtain a recording sheet (9).
- the thickness of the ink receiving layer was also 30 m.
- the obtained recording sheet was printed in the same manner as in Example 1 and evaluated.
- this coating solution was applied on a PET film using a bar coater, dried, and then heat-treated at 140 ° C. to obtain a recording sheet (R1).
- Ink tray The thickness of the vessel was 30 m.
- the pore volume of the receiving layer was measured by the mercury intrusion method described above.
- the obtained recording sheet (R1) was printed and evaluated in the same manner as in Example 1.
- a coating solution (R2) was prepared by mixing 86 parts by weight of the resulting dispersion and 14 parts by weight of an aqueous solution of polyvinyl alcohol having a concentration of 10% by weight.
- this coating solution was applied on a PET film using a bar coater, dried, and then heat-treated at 140 ° C. to obtain a recording sheet (R2).
- the thickness of the ink receiving layer was 30 ⁇ m.
- the pore volume of the receiving layer was measured by the mercury intrusion method described above.
- the obtained recording sheet (R2) was printed and evaluated in the same manner as in Example 1.
- coating liquid (R3) for forming ink receiving layer 86 wt. Dispersion of alumina sol (catalyst Chemical Industry Co., Ltd .: Cataroid AS-3, average particle diameter 200 nm, primary particle diameter 9 nm, pseudo-boehmite alumina) dispersed in water to a solid concentration of 11.4 wt% Was mixed with 14 parts by weight of a 10% by weight aqueous solution of polyvinyl alcohol to prepare a coating liquid (R3).
- alumina sol catalogalyst Chemical Industry Co., Ltd .: Cataroid AS-3, average particle diameter 200 nm, primary particle diameter 9 nm, pseudo-boehmite alumina
- this coating solution was applied on a PET film using a bar coater. After drying, the sheet was heated at 140 ° C. to obtain a recording sheet (R3). The thickness of the ink receiving layer was 30 ⁇ m. The obtained recording sheet was printed in the same manner as in Example 1 and evaluated. Table 1 shows the results.
- Ink-receiving layer forming reactant Ink-receiving layer Evaluation of printed matter Fibrous fine crystal particles supported, cationic flow Fibrous inorganic Deutschen's one pore volume dye 'ink pigment-ink average ink to average.
- Capacity Potential Membrane Grain Fine Particles 30 ⁇ Water Resistance Concentration Dry Dry Concentration Dry Discoloration Type Fiber Diameter Fiber Length Outer Ratio Oxidizer 2000nm Speed Speed
- Example 1 A 0.75 12 16 A1 10 31. 30 88 12 0.25 ⁇ 1.7 ⁇ ⁇ 1.6 ⁇ ⁇ ⁇ Example 2 A 0.75 12 16 A1 13 42 30 88 12 0.35 ⁇ 1.8 ⁇ ⁇ 1.7 ⁇ ⁇ ⁇ Example 3 A 0.75 12 16 AI 10 31 30 92 8 0.25 ⁇ 1.7 ⁇ ⁇ 1.6 ⁇ ⁇ Example 4 A 0.75 12 16 A1 10 31 30 82 18 0.25 ⁇ 1.7 ⁇ 1.6 ⁇ ⁇ Example 5 A 0.75 12 16 Zr 3 18 30 88 12 0.25 ⁇ 1.6 ⁇ ⁇ 1.5 ⁇ ⁇ ⁇ Example 6 B 0.3 3 10 Al 8 12 30 88 .12 0.20 ⁇ 1.5 ⁇ ⁇ 1.5 ⁇ ⁇ ⁇ Example 7 B ⁇ 0.3 3 10 Al 8 12 30 82 18 0.20 ⁇ 1.5 ⁇ ⁇ 1.5 ⁇ .
- Example 8 A 0.75 12 16 AI 10 50 30 88 25 12 0.20 ⁇ 1.7 ⁇ O 1.6 ⁇ O ⁇
- Example 9 A 0.75 12 16 Al 10 30 30 63 30 12 0.20 ⁇ 1.5 ⁇ ⁇ 1.5 ⁇ ⁇ ⁇ Comparative example 1 A 0.75 12 16 No reaction-5 30 88 1) 12. 0.50 X 1.1 ⁇ ⁇ 1.5 ⁇ ⁇ ⁇ Comparative example 2 B 0.3 3 10 No reaction-5 30 88 1) 12 0.20 X 1.1 ⁇ ⁇ 1.2 ⁇ ⁇ ⁇ Comparative Example 3 M20i 0.04 0.2 5 No reaction 10 30 88 12 0.15 ⁇ 1.4 ⁇
Abstract
Description
Claims
Priority Applications (3)
Application Number | Priority Date | Filing Date | Title |
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JP2004553219A JP4331112B2 (ja) | 2002-11-21 | 2003-11-20 | インク受容層付記録用シートおよびインク受容層形成用塗布液 |
KR20057007471A KR101063209B1 (ko) | 2002-11-21 | 2003-11-20 | 잉크 수용층을 지닌 기록 시트 및 잉크 수용층 형성용도포액 |
US10/535,865 US7727602B2 (en) | 2002-11-21 | 2003-11-20 | Recording sheet with ink receptive layer and coating liquid for forming ink receptive layer |
Applications Claiming Priority (2)
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JP2002338275 | 2002-11-21 | ||
JP2002-338275 | 2002-11-21 |
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WO2004045861A1 true WO2004045861A1 (ja) | 2004-06-03 |
Family
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PCT/JP2003/014813 WO2004045861A1 (ja) | 2002-11-21 | 2003-11-20 | インク受容層付記録用シートおよびインク受容層形成用塗布液 |
Country Status (5)
Country | Link |
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US (1) | US7727602B2 (ja) |
JP (1) | JP4331112B2 (ja) |
KR (1) | KR101063209B1 (ja) |
TW (1) | TWI319425B (ja) |
WO (1) | WO2004045861A1 (ja) |
Families Citing this family (2)
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US20060003116A1 (en) * | 2004-06-30 | 2006-01-05 | Eastman Kodak Company | Inkjet elements comprising calcium metasilicate needles |
JP6975158B2 (ja) * | 2015-10-26 | 2021-12-01 | ニュートリション・アンド・バイオサイエンシーズ・ユーエスエー・フォー,インコーポレイテッド | 水不溶性α−(1,3→グルカン)組成物 |
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- 2003-11-20 US US10/535,865 patent/US7727602B2/en not_active Expired - Fee Related
- 2003-11-20 WO PCT/JP2003/014813 patent/WO2004045861A1/ja active Application Filing
- 2003-11-20 KR KR20057007471A patent/KR101063209B1/ko active IP Right Grant
- 2003-11-20 JP JP2004553219A patent/JP4331112B2/ja not_active Expired - Fee Related
- 2003-11-21 TW TW92132677A patent/TWI319425B/zh not_active IP Right Cessation
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Also Published As
Publication number | Publication date |
---|---|
KR20050072124A (ko) | 2005-07-08 |
TW200417582A (en) | 2004-09-16 |
JP4331112B2 (ja) | 2009-09-16 |
US20060046000A1 (en) | 2006-03-02 |
JPWO2004045861A1 (ja) | 2006-03-16 |
KR101063209B1 (ko) | 2011-09-07 |
US7727602B2 (en) | 2010-06-01 |
TWI319425B (en) | 2010-01-11 |
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