TW562891B - Ink-jet recording material - Google Patents

Abstract

To provide an ink-jet recording material which has a clear printability and where the fixation of a water-soluble pigment ink is good, a printed-out image does not disappear, an adhesive layer is not required to be provided, the adhesion between a base and an ink receiving layer is excellent, the ink receiving layer does not separate from the base, and the ink receiving layer has an excellent water-resistance. In this recording material where an ink receiving layer is provided on a base, the ink receiving layer is formed from an application liquid comprising (A) an acryl resin emulsion, (B) polyvinyl alcohol, (C) silica and (D) a melamine crosslinking agent. The weight ratio of the solid component in the component (A) to the component (C) is 1:9-4:6, and the weight ratio of the total amount of solid component in the component (A) and the component (B) to the component (D) is 100:1-5:1. The content of the component (B) lies in a range of 5-15 pts by weight based on 100 pts by weight of the whole solid components.

Description

562891 V. Description of the invention (l) [Details of the invention [The invention belongs to a drawing machine, the shape of the receiving layer is thick, and at the same time, the material is recorded. [Prior technology Recently, the output of the brush is relatively low. Due to inkjet printing, the flow of water and other water used in the monitors such as kanban and kanban are generated. Detailed description of the images for indoor and outdoor output of ink-jet printing] [Technical Field] Regarding an ink-jet printer, it can form a very good film by color oil, and the ink acceptance is particularly suitable for recording materials; Ink-type inkjet printer; pattern formability, and τ ink-type layer will not be on the substrate :: ink spray for advertising and signboard = recorded as from mechanical noise Machine, Department of Energy 'was also made on Lee. The ink is more resistant to weathering than the oil is lost. The image is quite good. The machine and inkjet 'use this' will also have a computer, and it is used more than the system. However, the system is almost inferior and the ink will develop. As a result, the aforementioned water-resistant drawing inkjet type is equipped with an output machine. As the inkjet printing type is lower, the individual will be faded due to the dye-based result, so there will be some disadvantages. Performance and weather resistance of the mimeograph machine and scale device, brush output meter. This 'color image is currently used for the ink outside the house, or it is said that it is impossible, so the sex of the ink' knot inkjet type is faded because it is almost in the forefront. Then, it is imaged or sprayed, so the oil is used for wet identification. The figure is to make the color ink fruit, that is, the plotter color and the room have no printing and conversion costs. Because the full-color advertising ink type printing ink is used in the air and rain, the ink is not used. 2. Description of the invention (2) The advantage of less occurrence of the phenomenon of transformation, so that it is astounding. The reason for this is to make color inks, and the color inks are subject to considerable note: such as' with the financial properties of ink and weather resistance of recording materials, etc .; rr in the inkjet = and ^ substrate film, as a printing The paper uses a kind of oil 11 which is composed of a knee plastic film and a layer of ink that has been provided on the aforementioned base film. # 刖 $ 'is an oil composed of polyvinyl alcohol and polyvinyl hydrogen pyridine. The black system is provided with at least two layers of the polyethylene shrinkage layer used for J: and the layer = outer layer is a water-soluble resin for the system (Nitakui θ of the ink receiving layer, so that

^ ^ -262〇V ^ J ^ 94, ^ #)] In the J state, the foregoing = accept 1 ^, '/ = 2 dye-like inks. J properties are: word characteristics, such as drawings; re-oil; ink drying It is relatively low, and the ink does not have the so-called dryness of the ink. When it comes in contact with the image surface, Figure :: ;; Yes = the receiving layer 1 'at the same time, it is lost, and the oil black is peeled off. 'Ink in order to overcome pre-image = 2 current cause image: shortcomings. Transmittance 5 "record; Second, it is because of this patent, gazette), and the light transmittance is 50% 彳 特 开平 1 0-5296 No. 9 material, there is a record of this press Zhao # ^ The film is based on the ratio of the base and is mixed with the water-soluble tree 562891. V. Description of the invention (3) grease, (B) hardener, (", coated with liquid solution) == :: ,, and ⑻ The proportion of the proportion of the branches is the weight ratio !: 丨 to 彳 '疋, because when the resin component and particles are formed on the recording layer and the 2S 5S pieces, so the shape and because of the aforementioned Eating = /, and 4 have relatively low bonding, which results in ink absorption .: Phase, because a hardener is used, so dots. In order to overcome the aforementioned lack of so-called ink penetration, the layers are stacked in order: The Department of Thought also proposes that: a thin adhesive layer on the substrate is made of an adhesive layer, a σ back layer, and an ink receiving layer, and the main component is also darkened; and an auxiliary agent and a cross-linking agent are used as agents and cross-linking agents. The combination agent and catalyst ":: the system is bonded together ^ r, gazette), but when ^, even if The mixture layer will also be caused by the thickness of the oil black.% :: caused by the ink-receiving layer to peel off from the substrate; and then = layer 1 is dry: :: rr is relatively low, and also two = set to reduce ,; Youyou-bucket operation will become more and more, so that the yield rate Γ: said that there are shortcomings of poor production efficiency. [Problems to be Solved by the Invention] $ Note:: i: 'In order to overcome the shortcomings of the conventional inkjet inkjet inks like the above, there are some shortcomings. It is very good in fixing with water-based pigment inks. It does not disappear the printed image, and also requires a bonding agent layer. In addition, the substrate and the ink receiving layer Page 7, 88109787.ptd 562891 V. Description of the invention (4) It also has a very good tight sleeve, peeled off by the substrate, and black two days: 'The ink receiving layer will not have good water resistance. The inkjet recording recording material ^ layer itself also has a considerable [solution to the problem], " ° The inventor has gone through many times, doing f, suitable for advertising and kanban: & nine, and Developed this particular, it was found that: this action is used to == inkjet recording material, as a result, the composition of the fixed composition ": Cheng =; 妾 = line fluid, which is made of special parts, in order to improve the ink receiving layer and base == strip of filler j = layer is not easy to peel so that oil Water-resistant materials; fish according to the ink jet liter That is, the invention provides a ratchet = ^ credited with the present invention. The recording material for ink is a recording material of 在 μ5, and the material for spray recording is characterized in that the soil and δ are provided with an ink receiving layer through a coating liquid, and ^ /:, It is made of acetonitrile resin: /,) β-layer poly =: the aforementioned coating silicon, and (D) melamine-based cross-linking () 1 vinyl alcohol, (C) oxidizing solution 'is a solid component of rhenium component And (c) into: 'and said that the coating is based on the solid content of the component and (B) into) = to the weight of the knife I ratio is 100: 1 to 5: 1 The content of the ingredients is 20, [the embodiment of the invention], and the range is known. It is used in the inkjet recording material of the present invention ^ What specific restrictions exist and can be used The base material 'is not used by Sumitura J in recording materials for Baizhi 88109787, ptd page 8 562891 V. Description of the invention (5) The substrate used to be used as the base material, that is, paper, plastic film can be used. Therefore, there are no specific restrictions .: In the state of Sanhesu as an advertisement or kanban, you can choose to use, for example, acid ethyl Ester, polyethylene, polypropylene, polyamide, vinylidene chloride, dititanene, and nylon, as any of the above components, as a material film, but weather resistance and dimensional stability In terms of properties = Among these ingredients, polyethylene para-titanate is suitable. ^ ^ The thickness of the material is usually in the range of 25 // m ~ 250, but the soil is preferably 50 / / m ~ 100 / zm. The base film can be bright or opaque. In addition, the base film can be a colored film containing components such as titanium oxide, calcium carbonate, and alumina. In the recording material of the present invention, in particular, the aforementioned substrate is plastic: film = state can be on one or both sides of the aforementioned substrate ^ 2 as required, and the substrate and the ink receiving layer A pull-down 2 is provided between the two to improve the adhesion between the aforementioned substrate and the ink-receiving layer. The through-hanging 2 uses a polyurethane resin, a polyester resin, an acrylic resin, and a di-formic acid. Resin, etc., as the aforementioned pull-down layer. == The system is in the range of 0.5 // m to 15 / zm. The glue, 1 round ^ in the 'system must use the polyacryl alcohol, which is composed of (A) acrylic resin emulsion, (c ) Stone oxide, and melamine-based cross-linking agent: / night 'as the coating liquid used to form the ink-receiving layer. Tian = acrylic resin latex of the aforementioned (A) component, which can make ^ ^ Dilute acid vinegar, polyacrylate, acrylate, or methacrylic acid in the soil, syrup, toothpick, other monomers, such as copolymers of ethylene, vinyl acetate, etc.

562891 V. Description of the invention (6) Water is a type of latex. The solid content concentration of the acrylic resin latex used in the present invention is usually in the range of 30 to 60% by weight, but it is preferably in the range of 40 to 50% by weight, and the one used in the present invention is selected. Solid content concentration of acrylic resin latex. 4. These acrylic resin latexes are acrylic resin latexes that are available on the market, such as MOBINILE 718, 730, 950, and 320 0 (all are manufactured by HEXT Synthesis, registered trademark names). . Among these acrylic resin latexes, MoB 丨 N 丨 Le 730 (trade name) is particularly preferably used from the viewpoint of coating film strength and ink absorbability. Next, the polyvinyl alcohol component (B) is blended to adjust the viscosity of the coating liquid so as to give the ink-receiving layer the so-called ink absorbency. As the aforementioned polyvinyl alcohol, polyvinyl alcohol having a polymerization degree of 10,000 or more is generally used. However, it is preferable to use polyvinyl alcohol in a range of 100 to 300. In a state where the polymerization degree is less than 1,000, the ink absorbency of the coating film becomes insufficient, and the viscosity of the coating liquid is reduced to 1000 to 500 cps, so that it is not easy to form. A thick film, especially a coating film having a thickness of m or more, is produced. The polyvinyl alcohol described above is a partially or completely saponified product of polyvinyl acetate having a saponification degree of 75 mol% or more, and particularly preferably a partially saponified product having a saponification degree of 75 to 90 mol%. In the state where the saponification degree is less than 75 mol%, the ink absorption speed becomes relatively slow 'and the viscosity of the coating liquid becomes 2000 cps or more. Therefore, it is not easy to apply the coating operation, and A thin film is formed. δHai is used as the oxidized stone of the component (c) of the present invention.

V. Description of the invention (7) Synthetic oxidized stone powder and Hetiantieji-powder of oxidized stone powder used in the receiving layer. According to the oil of the present invention, 0 — 〇 · 〇-*-ί κ 5 # m ~ 6.0 / zm in the range of the weight of the average weight! Use of oxygen cut :: When the invention ink receiving layer ® particle size m Risi, the average weight of the ink two ^ Li = small ^ described, will become phase two L, wood / ink fixation , And the coating is larger than the aforementioned level; 2 :: Insufficient; and, "Cut the particle size sharpness is reduced = when surrounding, it will lead to the sharpness of the image, etc." The ideal of sexuality and image is viewed at 2.0. /: !! The average weight particle size of the oxidized stone, the oil absorption of the most silicon becomes within the dry range. In addition, when the aforementioned oxidation phenomenon and the coating film density are reduced, the adhesion between the materials is reduced, which results in the formation of silicon oxide and a base of 2 50 ml. / 100 >#ox low, therefore, it is best to use the oil absorption 15Q ~ / 100g of the children in the dry fence ^ the purpose of the difference, and Bo 1 evening but also can be used with W ® ^ ,, , Then the range of oil absorption is 150 ~ 25 0ml / 1 00g; the other example is oil absorption 9. The oxygen range of g in the range of ~ M _ π: 1b: f silica, which can be combined and used more than two kinds of silica with different physical properties. Gazette A—combined with the use of Xi, fish "In the state of 50% silicon oxide, you can borrow 1 Z ^ ^ ^ Α a synthetic silicon oxide treated with acid on the surface and improve the reproducibility of the image and in order to To further enhance the color development. The surface acid 88109787.ptd Page 11 V. Description of the invention (8) ______ The synthetic oxide stone treated / 1 、 内; when the merging, A siri ratio 1 _ 1 to 1 · 10 Ratio 1: 1 to 1 If the synthetic oxygen cut of f at the acid site is lower than the above-mentioned reset, which leads to the sacrifice of the sacrifice, the viscosity of the solution will become unstable. When the synthetic oxygen cut by sman process is higher than the above-mentioned surface area, the so-called crack phenomenon may occur in the ink dryness and the oil two digits Aita Tani. In addition, in the present invention, inorganic particles such as kaolin, alumina, calcium carbonate, titanium dioxide, alumina, ς5H bow, and glass may be used in combination with the aforementioned silica. The mixing ratio of the solid component in the (A) component of m and the (c) component = weight: in the range of 9 to 4: 6 ', that is, in the (A) component of the present invention with respect to the resin j 7 The compounding ratio 'J of the solid content and the (c) component is within the range of the filler condition. Relative to the aforementioned state, the condition of the resin component is in the state of the accustomed / ink-receiving layer. However, in the present invention, when the proportion of calcium silicide is less than the solid component in the above-mentioned A), (C) When the blending ratio of the component is in the range, the absorption and drying properties of the pigment-based ink will be relatively low, and the blending ratio of θ sec calcium will be more than the solid content of the component (A). When the component and (c) component = the range of the mixing ratio, the ink receiving layer and the base film will be caused.

= The adhesiveness is reduced, which makes the ink receiving layer quite prone to peeling. J

562891 V. Description of the invention (9) From the viewpoints of ink absorbency, dryness, and material shedding, etc., (A) the solid content in the component; whether it is based on the ideal weight ratio between the base components, is 2: 8 to 31 1 and (C) In addition, the 'combination ratio of the ⑻ component' can be within the overall oil range. Within the range of 5 to 15% by weight. When the proportion of the component (B) is in the range of 5 to 15% by weight of the entire ink receiving layer connected to the upper layer, the above-mentioned absorptivity will become relatively low, and the viscosity of the coating liquid will become ink. It is impossible to apply a relatively thick coating layer. In addition, when the component (B) has a low meaning, and the ratio is more than 5 to 5 weights of the entire ink receiving layer ^ = when combined, it will make the coating The film strength decreased. From the above perspectives, we can know that the ideal blending ratio of (B) component is 8 ~ 丨 2 double deniers. 0 / Λ Wangli should be used as the (D) component of the present invention, which must be used Melamine series of six agents. As the aforementioned melamine-based cross-linking agent, a 'dicyandiamide resin, and an N-substituent of the melamine resin can be used. The weight ratio of the solid content of the component (A) and the component (B) to the weight ratio of the (D) component may be in the range of 100: 1 to 5: 1. D) The blending amount of ingredients. When the compounding ratio of the (D) component of the present invention is smaller than the aforementioned range, the water resistance of the ink receiving layer becomes relatively low, and when the compounding ratio of the (D) component of the present invention is more than the former & If it is in the range, the ink drying property and the image formability are lowered, which is not desirable. From the viewpoints of water resistance of the ink absorbing layer, ink absorbability, drying property, image formability, etc., the preferable blending ratio of the shellfish component is in the range of 50: 1 to 20: 3.

88l〇9787.ptd Page 13 562891

V. Description of the Invention (ίο) In the present invention, since a melamine-based crosslinking agent is used, an ammonium chloride aqueous solution or the like is used as a medium for promoting the crosslinking reaction. Relative to 100 parts by weight of the melamine-based cross-linking agent, for example, the blending ratio of the melamine resin's catalyst is 20 to 5000 parts by weight, but it is best to use a ratio of 100 to 400 parts by weight for rats. catalyst. In the state where the amount of catalyst is less than 20 parts by weight, the cross-linking reaction becomes insufficient σ $, resulting in a decrease in water resistance and coating film strength. However, when the amount of contact 2 exceeds 50 parts by weight 'It will make the coating liquid into a phase: know that, in the coating liquid, agglomerates occur. The ink-receiving layer in the inkjet recording material of the present invention is based on a certain proportion of the top ten ["A, knife, knife and moon are less than water-based> cereals, and the force is strong." After applying the coating solution of about 篁%, the top of the pull-down layer that is set according to the requirements of 30% = the ink receiving layer in the J material or the material. In the inkjet recording material coating liquid of this invention, it can be added 3. Various coating agents for layer formation, such as surfactants, and ^ = various kinds of additives used in the shell, gas, cyanide, chaparin, stabilizer, and coloring agents, etc. The thickness of this 5 layer "Department is 35 ~ 10" is the best within the range of 4 0 ~ 6 5 # m. — 疋, In addition, in the present invention, in the state where the ink receiving layer is provided on the early side of the violent material, it can be connected to the back of the substrate film. The receiving layer is on the opposite part of the surface. Press Zhaotun, and then the ink is connected to the layer. It is curled by the adhesive and Gu Hai ^ Zhao Yao Yan. It is used to prevent the next 4 photos from being raised. Notes and

88109787.ptd Page 14 562891 V. Description of the invention (11) f ”The matte roughening agent used for the portability of surface branches to facilitate the formation of 3 S, a protective layer for bending; it is used as the aforementioned adhesive For example, Z f ^ 1 ^ thermosetting resins, and photo-curable resins can be mentioned. If the point is i :, various types of resins include acrylic resins, polyurethane I resins, and vinyl resins. In addition, as the matte coarse soil, "" lists, for example, silica, hafnium oxide, clay, kaolin magnesium, titanium dioxide, zeolite, calcium carbonate, barium sulfate, methyl hydroxide ": Γtreme, #glass, etc. Inorganic powder, acrylic resin, polyamine, 1 dung: =: resin, benzoguanosine resin, and benzoic acid, 、: 5: synthetic resin powder such as Jun condensate. The aforementioned mΛ Λ / average weight particle diameter is in the range of 0.1 to 2 ° H, but 疋 is preferably in the range of 20 to 100. From the viewpoint of obtaining the curability for curling and quite good viewpoints, the η of the aforementioned curl-preventing layer is quite advantageous. "In the target range, will be =, ☆ This broadcast song prevention layer can always contain _ commonly used agents, additives, such as surfactant 1 stabilizer, stabilizer, and coloring [Effect of the invention] The inkjet recording material of the present invention has good fixability, #color properties, and image characteristics with water-based inks. In particular, the water-based appearance is good, and at the same time, it does not need to be created: it is very good to become a thick film. "Ink-receiving layer is not the same": "Even if a ㈢Φ substrate is peeled off,

562891

In addition, the output image is not based on the materials that are quite suitable for the previous technology and can be quite familiar with the material. Therefore, the production cost cooperation is carried out for spraying, and it will be peeled off. As a result, recording materials such as kanbans and inkjet inks for adhesive layers are cheaper, especially for watch machines, and the inkjet inks used are relatively fine and difficult to see clearly. In addition, Mingzhi's inkjet advertisements and previous technologies are used as recording materials such as inkjet plotters that can reduce work efficiency. Therefore, the appreciation of the concavities and convexities is better than that of conventional recording material boards. Inkjet has a lower production rate, and the recording material prints the image with water material 0. Therefore, the output material is brushed, which is known, and it is lower than the recording production operation. It is not a suitable ink image. It can be mentioned that the phenomenon of light is used for advertising inkjet and the invention is simple. As a result, the ink-type printing can be provided with the so-called "field of the hair". Inkjet Inkjet [Examples] Next, the present invention will be described in more detail through examples, but the present invention is not limited to the following examples. In addition, according to the method shown below, the physical properties of the recording material for inkjet use are as follows: (1) Ink set property D # 彳 Jia. A black (pigment) ink with inkjet type (Design ····································· ····················································· Just borrow: plastic eraser [manufactured by XEROX, Super-eraser-〇 (shanghai u-name)], wiping the aforementioned two < line

88109787.ptd Page 16 562891 5. In the description of the invention (13), in order to measure the time until no ink diffusion trace occurs, the inkjet recording material was evaluated according to the following criteria. 〇: Less than 3 minutes △ · More than 3 minutes, less than 5 minutes · More than 5 minutes (2) The sharpness of the image is an inkjet plotter (set by Ye. Jet 25 0) made by Hewlett Packard Company. 0cp) black (pigment) ink to output a predetermined image so that the evaluation of the recording material for inkjet can be performed visually. 〇: No penetrating, blurring, or darkening occurred. △ ... Any of the aforementioned penetrating, blurring, or darkening occurred. X: The aforementioned penetrating, blurring, or blurring occurred quite significantly. Any phenomenon of darkening (3) Ink absorbency is determined by an inkjet plotter (design: Jet 2500 0cp), black (BK), cyan (c), and fuchsia made by Hewlett Packard. (M), yellow (Y), red (R), green (G), and blue (B) of 7 6 printing parts, and the printing is in the same color, and, after printing processing ^, immediately take out After the aforementioned 7-color cold (beta) printing section, every 1 minute, for a total of 5 minutes, when a load of 100 g was applied to the printing section by superimposing the PPC paper on the printing section, visual observation was performed. Whether the ink is transferred to the ppc paper so that the ink price can be adjusted according to the following criteria:

88109787.ptd Page 17 562891 V. Description of the invention (1404 ink is not transferred to PPC paper = dry ink is transferred to PPC paper (4). It is markedly transferred to PPC by pull phase. The adhesiveness between the paper layer, the paper layer, and the base film is connected to the ink with the ink. @ @ @,. The image section is added, and the cellophane adhesive with a width of 2 cm is attached. Lixi & tests the straight direction of the honey from the °, and for the ink receiving layer, a strong base bismuth front post 7 'is performed so that the degree of peeling between the ink receiving layer and the material film can be judged visually. 〇Δ

X

〇 △ X The image with almost no peeling part is peeling off Most or all of the image is peeling C 5) Water resistance; ^ 柒 penetrates into absorbent cotton (4cm X 4cm), and accepts ink for ink = part 'Repeat the rubbing #, and observe the oil 2 at this time: the state of the two, in order to follow the following standards, and carry on the water resistance 1 king < bang price 0 = · even after 100 times or more When wiped, the coating film did not peel off. In the state of more than 99 times, the coating film was peeled X: In the state of 49 times or less, tt UA 1 ^ Wang Fuzansheng has peeled 1 to 7 parts by weight of polyvinyl alcohol (degree of polymerization_, degree of saponification) 78 5 81 · mol%), 17.3 parts by weight of the person prepared δ · b 3.5 // !! 1, oil absorption 21〇1111 / 1〇 (^), 8,8 heavy densities ^ (average Acrylic latex with a weight of 1 and a particle size of 8 δ

562891 V. Description of the invention (15) (MOBINILE 730 (commercial name), ΗΕχτ synthesis concentration 46% by weight) ,. .2 parts by weight of a melamine-based mouth, opening 20 parts by weight of an ammonium chloride aqueous solution, 30 parts by weight and parts by weight of water in order to prepare an ink-receiving layer shape ^^ and 40 weight 100. Easy-joint-treated poly-p-titanate: on the surface of the film, the arrow- 箭 film is applied as early as the wire ^: down, and heated for 5 minutes so that //; 4 / ^ and The physical properties of the ink receiving layer at 130 are disclosed in Table 丨. Another layer of Example 2 In Example 2, except for the user, the length #m) replaces the previous example. 丨] 22 average weight ® particle size 1.8 m, oil absorption 21 Gm average weight particle size & amp Example 1 is exactly the same method, and ρ # 卜 +, /, Yu shows the physical properties of the ink receiving layer described above according to the actual system. # Another layer is in Table 1, Example 3 Example 3 into the 'Except for using the average weight particle diameter of 6.0 Å, absorbing, absorbing, denaturing, 20 0 synthetic oxygen cutting instead of the foregoing embodiment Guangzhong No. 2 = Example 1 is exactly the same method, and # rest according to the same as the above In fact, the physical properties of the ink-receiving layer cannot be described in any other way. Ning Example 4 Quantities = Two: Example 4 Two, except for i, so that the compounding amount of the synthetic oxidation seconds becomes 21 weights: ίΠ according to the previous embodiment 1 is exactly the same method 'to form the ink-receiving layer. It is shown in the table ... = 油 88109787.ptd page 19

V. Description of the invention (16) Example 5 of the physical properties of the ink receiving layer In Example 5, except that the synthetic amount is made, the rest is the same as that of the aforementioned sand, and the compounding amount is 13 times. Method 'to form an ink receiving ^. Table i shows the physical properties of the ink-receiving layer described above. Example 6 In Example 6, except that the blending amount of the melamine-based cross-linking agent was set to 0. 0 6 parts by weight, 'the rest was performed in exactly the same manner as in Example 1 described above, and ink reception was formed. Floor. Table 1 shows the physical properties of the ink-receiving layer described above. Example 7 In Example 7, except that the blending amount of the melamine-based crosslinking agent was 0.5 parts by weight, the ink-receiving layer was formed in the same manner as in Example 1 described above. Table 1 shows the physical properties of the aforementioned ink-receiving layer. Example 8 In Example 8, except that the blending amount of polyvinyl alcohol was 3.4 parts by weight and the blending amount of acrylic latex was 2.2 parts by weight, the rest were exactly the same as those in Example 1 described above. Method to form an ink receiving layer. Table 1 shows the physical properties of the aforementioned ink-receiving layer. Comparative Example 1 4.9 parts by weight of polyvinyl alcohol (degree of polymerization 1700, degree of saponification 78, 5 to 81.5 mol%), and an average weight particle diameter of 1 · 2 parts by weight 3 · 5 // m

88109787.ptd Page 20 562891 V. Description of the invention (17) A ^ ~ --- * Synthetic silica powder with acidity, 10 · 8 parts by weight of 50% silica powder without acid treatment (Fuji SILISIIA Made by the company: average weight particle size (3 ·, oil absorption: 210ml / 100g), 0.5 parts by weight of urea, 0.7% by weight of 20% ammonium chloride aqueous solution, 17.5 parts by weight of ethanol,丨 · 9 parts by weight of propylene glycol monomethyl ether and 62.5 parts by weight of water in order to prepare a coating solution for forming an ink contact layer. On the single side of the thickness 丨 〇〇 # m easy-to-bond treatment = polypara-ethylene titanate film, the aforementioned coating solution was applied by a wire, and at 130 ° C, Heat for 5 minutes

An ink-receiving layer having a thickness of 3 0 // m is formed. The physical properties of the ink receiving layer are shown in Table 1. The following bonding layer was provided between the substrate and the ink receiving layer of Comparative Example 1. 4 parts by weight of polyvinyl alcohol (degree of polymerization 1700, degree of saponification 78, 5 to 5 mole%: GOUSENOL KH -17 (trade name)), 2 parts by weight of 50% silicon oxide powder (Fujis ILIS IA Corporation) System: average weight particle size 6 // m, oil absorption 95ml / 100g), 0.5 parts by weight of urea, 10 parts by weight of ethanol, 1 part by weight of fluorescent bleach, and 82.5 parts by weight of water To

It is easy to prepare a coating liquid for forming a bonding layer. The substrate of Comparative Example 1 was coated with the aforementioned coating liquid, and heated at 130 t for 2 minutes to facilitate the formation of a bonding layer having a thickness of 10 / m. The physical properties of the bonding layer are shown in Table 1. 100 parts by weight of silicon oxide (manufactured by TOKUYΑΜΑ,

88109787, Ptd Page 21 562891 V. Description of the invention (18) Fineseal (commercial name), 50 parts by weight of acrylic copolymer (manufactured by HEXT Synthesis Co., Ltd., ^ 1081 to 11 ^ 963 (commodity name), solid content concentration 46 weight %), 20 parts by weight of polyethenol (GL-03 (trade name), manufactured by Nippon Gosei Co., Ltd.), 1.5 parts by weight of sodium polyacrylate base, in order to prepare an ink-receiving layer having a concentration of 35 percent by weight Formation coating liquid. A coating liquid for forming an ink receiving layer at 10 g / m2 was applied on the substrate of Example 1 to facilitate the formation of the ink receiving layer. The physical properties of the ink receiving layer are shown in Table i. Comparative Example 4

In Comparative Example 4, except that the blending amount of polyvinyl alcohol was 0.3 parts by weight and the blending amount of acrylic latex was 5.3 parts by weight, the rest was performed in the same manner as in Example 1 described above, and An ink receiving layer is formed. Table 1 shows the physical properties of the aforementioned ink-receiving layer. Comparative Example 5 In Comparative Example 5, except that the blending amount of polyvinyl alcohol was 6.9 parts by weight and the blending amount of acrylic latex was 0.3 parts by weight, the rest were the same as those in Example 1 described above. Method to form an ink receiving layer. Table 1 shows the physical properties of the aforementioned ink-receiving layer.

88109787.ptd Page 22

562891 V. Description of the invention (19) Example comparison for 1 2 3 4 5 6 7 8 1 2 3 4 5 Ink setability 〇Δ 〇〇Δ 〇〇〇〇〇〇ΔΔ 〇 The sharpness of the image 〇〇Δ 〇Δ 〇Δ 〇〇〇〇〇Δ 〇 Ink absorption 〇〇Δ 〇Δ 〇Δ 〇X Δ Δ X 〇 Adhesion between the ink receiving layer and the substrate film 〇Δ 〇Δ 〇 △ 〇Δ XXX 〇X 〇Δ 〇Δ 〇Δ 〇Δ Δ 〇X 〇Δ According to the results in Table 1, it can be known that the inkjet recording material (Examples 1 to 8) of the present invention has quite good ink fixability. And color development, and it was also confirmed that the image formed on the ink receiving layer was not peeled off from the substrate.

88109787.ptd Page 23 Date of the month _ Amendment Application date: 88.6.11 Case No. Jj88109787 Category: h / Μ _____ (by Jl each stop by Ben Weng,.; :: Soaring ^. &Quot; " ΧΛ

Invention Patent Specification 562891 Chinese Ink-jet Recording Material Ink-jet Recording Material Name (Chinese) 1. Kaji Kenji 2. Suzuka Yoko 3. Fuze Masaki Inventor Name (English) 1. 2. 3. Nationality 2. Japanese version 3. Japanese version of residence and residence 1. Vv-A Co., Ltd., No. 2 and No. 11 Ginza, 4 Ginza, Chuo-ku, Tokyo, Japan 2. Tongji 3. Tongji Name (Name) (Chinese) 1. Request Mar Co., Ltd. Name (Name) (English) 1. V V-yl / Nationality of Japan 1. Residence, Domicile (Office) of Japanese Applicant 1. Representative, No. 11, No. 2 and No. 4, Ginza, Chuo-ku, Tokyo, Japan Name of person (Chinese) 1. Name of representative Yokote (English) 1.

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Claims (1)

562891 Bulletin Thai; Case No. 88109787 A_ Revision il 6. Application for Patent 1. A recording material for inkjet, which is a recording material with an ink receiving layer on a substrate, which is characterized by: The ink-receiving layer is formed by a liquid, and the liquid is composed of (A) an acrylic resin latex, (B) a polyvinyl alcohol stone, and (D) a melamine-based crosslinking agent, wherein the resin latex is a It is the moisture of the copolymer of polyacrylic acid acrylate, polyacrylate, methacrylic acid ester and other monomers. The solid content concentration of the acrylic resin latex is 30 to 60, and the degree of polymerization of the polyvinyl alcohol is above 1,000. And is a partially saponified or completely saponified coating solution of the saponified polyvinyl acetate, which is a solid form of the component (A) and a solid form of the component (C) 1: 9 to 4: 6 and the solid form of the component (A) The weight ratio of the component (D) to the component (B) is 100: 1 to 5: 1 and the content of the component (B) per 100 parts of solid content is within 5 to 15 weight. 2. For example, the silicon oxide of the recording material for inkjet recording in the scope of patent application No. 1 is inorganic fine particles having a particle size of 1 to 10 // m and oil absorption of 250 m 1/100 g. 3. The ink-receiving layer, such as the inkjet recording material in the scope of patent application No. 1 or 2, is provided with a thickness of 40 ~ 8 0 // m. And the aforementioned coating of oil, (C) oxidizing the acrylic acid emulsion, acrylic acid latex, weight%, in degrees 75 mole%: and the weight ratio is the total amount and weight parts The whole range, in which (C) the amount of 150 ~ material, of which oil \\ A326 \ 2d- \ 90-07 \ 88109787.ptc Page 25