JP2004122542A - Laminated film and laminated print - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To supply a laminated film which is useful for the surface protection of a print, has a first layer to be a surface protection layer on a heat-resistant substrate and a second layer to be an adhesive layer formed on the first layer, and is good in blocking resistance when wound up. <P>SOLUTION: An aqueous emulsion resin having a glass transition temperature of 80-130°C is incorporated as a resin component constituting the second layer. <P>COPYRIGHT: (C)2004,JPO

Description

【００６４】
【発明の効果】
本発明によれば、かかるラミネートフィルムを用いて画像面上に接着層および表面保護層からなる転写膜層が形成されることで、印画物の画像濃度や画像光沢が大きく向上し高品位な画像が得られることや、印画物の耐候性や耐磨耗性大きく向上するとともに、ラミネートフィルムの耐ブロッキング性が良好であるため、ラミネートフィルムの背面処理や保存環境等を調整する必要の無い安価なラミネートフィルムを供給することができる。
【図面の簡単な説明】
【図１】ラミネートフィルムの構成を示す断面図
【図２】インク受像紙の構成を示す断面図
【図３】ラミネート処理後ラミネートフィルムの耐熱性基材を剥離した後の完成印画の構成を示す断面図
【図４】保護層と印字物の熱圧着／転写プロセスを提供する定着メカニズム
【符号の説明】
１　　　　：　ラミネートフィルム巻出しリール
２　　　　：　ラミネートフィルム
２ａ　　　：　ラミネートフィルムの耐熱性基材
２ｂ　　　：　表面保護層
２ｃ　　　：　接着層
３　　　　：　加熱ロール
４　　　　：　ロータリーエンコーダ
５　　　　：　加圧ロール
６　　　　：　冷却ファン
７ａ、７ｂ：　後端剥離機構の固定ガイド
７ｃ　　　：　後端剥離機構の可動剥離軸
８　　　　：　先端剥離機構のガイド
１０　　　：　ラミネートフィルムの巻き取りリール
１１　　　：　印字物のガイド
１２　　　：　第一のフォトインタプラ
１３　　　：　第二のフォトインタプラ
１００ａ　：　基材紙
１００ｂ　：　インク受容層[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a laminate film for covering (laminating) an image surface of a printed material on which an image is formed on a recording medium with a transfer film layer, a laminated printed material using the same, and a method of manufacturing the same.
[0002]
[Prior art]
Thermocompression bonding (lamination) of a laminated film consisting of a resin layer laminated on a heat-resistant substrate for electrophotographic or ink-jet output printing, peeling off the heat-resistant substrate, or obtaining a completed print without peeling The method has been widely used as a method for improving image fastness such as image quality, weather resistance, and abrasion resistance of a printed matter (for example, Patent Documents 1 and 2).
[0003]
Such a laminate film is formed by forming a thermoplastic resin having a relatively low glass transition temperature on the outermost layer on a heat-resistant base material, and the thermoplastic resin is softened or melted by thermocompression bonding to laminate with a print. It is possible to do. Here, in order to further enhance the image quality and the image fastness of the laminated print, it is important that the thermoplastic resin layer firmly adheres to the print surface. Therefore, in many cases, a thermoplastic resin layer that is easily softened or melted by lamination, that is, has a low glass transition temperature is used.
[0004]
On the other hand, since the laminated film is often used in the form of being wound into a roll, the risk of blocking with the back surface of the base material increases as the thermoplastic resin easily softens or melts. In order to prevent blocking, it is indispensable to take measures such as providing a release layer made of a silicone-based resin or a fluorine-based resin on the back surface of the base material, or covering the laminated adhesive surface with a so-called “backing paper”. All of these have not been obtained at low cost, and have caused an increase in cost.
[0005]
[Patent Document 1]
JP-A-6-91767 [Patent Document 2]
JP 2000-233474 A
[Problems to be solved by the invention]
An object of the present invention is to have a first layer serving as a surface protective layer on a heat-resistant substrate and a second layer serving as an adhesive layer provided on the first layer, which is useful for protecting the surface of a print. An object of the present invention is to provide a laminate film having good blocking resistance when formed into a roll.
[0007]
In addition, the printed matter laminated by the laminate film has an image surface such as an image density and an image glossiness, light fastness, and water fastness as compared with the unprocessed one because the image surface and the laminate layer are firmly adhered. It also greatly improves image fastness, such as image quality and rub resistance.
[0008]
[Means for Solving the Problems]
A heat-resistant base material, a transfer film layer that is provided on the heat-resistant base material and that can be peeled off, in a laminate film that transfers the transfer film layer by heating and pressing on the image surface of the print,
The transfer film layer has a first layer serving as a surface protective layer on the image surface, and a second layer provided on the first layer and serving as an adhesive layer to the image surface, and the second layer The laminate film contains an aqueous emulsion resin having a glass transition temperature of 80 to 130 ° C. as a constituent resin component.
[0009]
Further, the printed matter having been subjected to the laminating treatment according to the present invention is such that the transfer film layer is laminated on the image surface, and the first layer is on the adhesive layer which is the second layer adhered on the image surface. In the configuration in which the surface protective layer is laminated, the second layer is formed of a resin layer containing an aqueous emulsion resin having a glass transition temperature of 80 ° C. or higher.
[0010]
The water-based emulsion resin contained in the second layer of the laminate layer according to the present invention preferably has a content in a range of 5 to 40% by weight in terms of weight. In a preferred embodiment, the resin constituting the first layer or the second layer contains a polymer material containing an ultraviolet absorbing compound as a component.
[0011]
The laminate film according to the present invention is suitable for performing a laminating process on a recording medium on which an image is formed by an inkjet image recording method.
[0012]
It is particularly preferable to perform a laminating process on a recording medium on which an image is formed on a portion containing the porous inorganic particles.
[0013]
Further, it is particularly preferable to perform a laminating process on the recording medium in which the porous inorganic particles are amorphous silica.
[0014]
BEST MODE FOR CARRYING OUT THE INVENTION
Prior to the description of the embodiment of the present invention, a fixing mechanism for providing a thermocompression bonding / transfer process of a protective layer and a printed matter according to the present invention will be described with reference to FIG.
[0015]
In FIG. 4, reference numeral 1 denotes an unwinding reel of a roll of a laminated film 2 having a resin layer wound outside, and gives back tension (by a counterclockwise torque in the figure) to the film 2. A heating roll 3 has a rotary encoder 4 on its shaft for detecting the rotation amount of the roll. Reference numeral 5 denotes a pressure roll for pressing the film 2 against the heating roll 3. The pressure is preferably a linear pressure of 5 to 50 N / cm, particularly preferably a linear pressure of about 15 to 35 N / cm. Reference numeral 6 denotes a cooling fan that cools the protective layer and the printed matter P pressed by the roll pairs 3 and 5, and 7a and 7b are fixed guides of a trailing end peeling mechanism and are configured to be rotatable about the axis. Reference numeral 7c denotes a movable peeling shaft of the trailing end peeling mechanism, which rapidly extrudes the trailing end of the printed matter P, which is pressure-bonded to the film 2 via the protective layer, to peel off from the film 2. Reference numeral 8 denotes a guide of a leading end peeling mechanism, through which the printed matter P which has been press-bonded to the film 2 via the laminating layer passes, and the leading end of the printed matter is peeled off due to a difference in rigidity with the film 2. Reference numeral 10 denotes a take-up reel for the laminate film 2, which gives a tension in the take-up direction (counterclockwise in the figure). Reference numeral 11 denotes a guide for the printed matter P, reference numeral 12 denotes a photo-interrupter constituting a first paper passage sensor, and reference numeral 13 denotes a photo-interrupter constituting a second paper passage sensor.
[0016]
When the printed matter P is inserted into the guide 11 and the first paper passage sensor 12 generates a "presence" signal of the paper, the pressure roller is pressed against the heat roller 3 and the heat roller starts rotating clockwise. The linear velocity of the rotation can be selected from a range of about 5 to 40 mm / s, but is preferably in a range of 10 to 30 mm / s. The printed matter P is adhered to the laminate film 2 via the protective layer by the roller pairs 3 and 5. The angular position of the heat roller from the angular position of the heat roller when the second paper passage sensor 13 detects a change from “present” to “absent” of the paper until the trailing edge of the printed matter is located at the trailing edge peeling mechanism. Is monitored by the rotary encoder 4 of the heat roller, and the trailing end peeling is performed by the movable peeling shaft 7c of the trailing end peeling mechanism at the angle. Thereby, the printed matter is peeled off from the laminate film 2 only at the rear end together with the protective layer. Thereafter, after the second paper passage sensor detects "absence" of the paper, the laminating film is fed by a length required for completing the paper discharge. This is also performed by the rotary encoder 4 monitoring the rotation of the heat roller 3 for a distance from the rear end of the paper after passing through the second sensor until the paper is completely discharged. At this time, since the printed matter passes through the leading end peeling mechanism, the protective layer adhered to the highly rigid printed matter cannot be passed through the same bath as the remaining laminated film in the rapidly bent path, so that the printed matter is peeled off. Since the rear end has already been peeled off, the protective layer layer around the printed matter that has not adhered to the printed matter cannot be cut, so that it does not peel off by being connected in a fin shape around the printed matter.
[0017]
At this time, the portion of the laminate layer between the position of the heat roller 3 and the leading end peeling mechanism, which has been nipped by the roller pairs 3 and 5, is only heated and can be reused. In order to rewind the unused portion to the heat roller position again, the heat roller 3 is rotated counterclockwise by an angle corresponding to its length, and then stopped. After the stop, the movable pressure roller 5 retracts to the non-pressure position again.
[0018]
Next, an embodiment of the present invention will be described.
[0019]
FIG. 1 is a sectional view of the laminate film of the present invention. The configuration of the laminate film 2 is a configuration in which a protective layer surface layer 2b and an adhesive layer 2c are sequentially laminated on a heat-resistant base material 2a.
[0020]
FIG. 2 is a cross section of an ink receiving paper to which the laminated film of the present invention is adhered. An ink image receiving layer 100b is formed on a base paper 100a.
[0021]
FIG. 3 is a cross-sectional view of a completed printing state in which the heat-resistant base material 2a of the laminate film is peeled off after the laminate film is adhered to the ink receiving paper.
[0022]
The laminate film described above can be formed as follows.
[0023]
As a heat-resistant base material, the shape can be stably maintained under pressure bonding conditions when forming the protective layer, and further under heating and pressurizing conditions, and it is easy to peel off when the transparent protective layer is formed on the ink receiving layer Polyethylene such as polyethylene terephthalate, polyethylene terephthalate / isophthalate copolymer, polybutylene terephthalate, polyolefin such as polypropylene, polyamide, polyimide resin, triacetyl cellulose, polyvinyl chloride, vinylidene chloride / vinyl chloride copolymer resin A film or sheet made of a material such as acrylic resin, polyethersulfone, or the like can be used.
[0024]
The thickness thereof is not particularly limited, but is preferably 5 to 50 μm, and more preferably 10 to 40 μm, in consideration of economy and difficulty of wrinkling.
[0025]
The surface of the heat-resistant substrate on which the protective layer is formed may be subjected to a surface roughening treatment such as embossing or sandblasting, or a surface roughening treatment using a resin layer containing powder particles. When the surface roughening treatment is not performed, after laminating the laminated film to the print, and then peeling the base film, a laminated image having a protective layer with good gloss can be obtained. In addition, a semi-gloss or mat-like laminated image can be obtained by using the laminated film subjected to the roughening treatment.
[0026]
The surface protective layer can improve the surface smoothness of the printing screen to achieve high gloss, and even under harsh storage environments, it can reduce gloss, deteriorate the film such as whitening, and generate cracks. From a small point, it is preferable to use a resin having a high molecular weight and a high glass point transfer as a main component. The molecular weight is suitably 50,000 or more in weight average molecular weight, and the glass transition temperature is preferably 70 ° C. or more. It is particularly preferable to use a non-aqueous resin from the viewpoint that the resin absorbs moisture and swells when placed in a high humidity environment to suppress deterioration of image quality.
[0027]
As a main component of the resin for the surface protective layer based on the above characteristics, a resin having a high glass transition temperature such as an acrylic resin, a polyester resin, a melamine resin, a polyamide resin, a polyarylate resin, or a silicone resin can be used. In addition, a thermosetting resin, an ultraviolet curable resin, or an electron beam curable resin may be used to particularly enhance water resistance, solvent resistance, abrasion resistance, and the like.
[0028]
Further, in the image formation by the inkjet image recording method, a dye is often used, and the resistance to deterioration by ultraviolet rays is not sufficient. In such a case, the resistance to ultraviolet light degradation can be improved by including a compound having an ultraviolet absorbing property in the resin. As a method of including an ultraviolet absorbing compound in the resin, an ultraviolet absorbing compound such as benzotriazole may be used. There are a method in which these ultraviolet absorbing compounds are used by adding them to the above resin, and a method in which these compounds are copolymerized with the above resin components and used. When used by adding to the above resin, it is preferable to use a high molecular weight type ultraviolet absorbing compound from the viewpoint of sustainability.
The surface protective layer is easily formed by applying a coating solution containing a solution or an emulsion by a known method such as a roll coating method, a rod bar coating method, a spray coating method, an air knife coating method, a slot die coating method, and then drying. Can be formed. The thickness of the surface layer needs to be such that cracks due to stress can be prevented. On the other hand, if the thickness is too large, the performance of peeling along the periphery of the print is impaired. Therefore, the thickness of the surface layer is usually selected from 1 to 10 μm.
[0030]
On the surface protective layer formed as described above, an adhesive layer containing a thermoplastic resin of an aqueous emulsion as a main component is formed. In order to impart the smoothness and abrasion resistance of the surface protective layer to the surface of the print, the adhesive layer must be softened and melted during lamination, and the surface of the print and the surface protective layer should be adhered and adhered by the adhesive layer. is important. Therefore, the thermoplastic resin which is the main component (50% by weight or more of the total solid content) constituting the adhesive layer preferably has a glass transition temperature of 0 to 50 ° C. When an aqueous emulsion resin having a glass transition temperature exceeding 50 ° C. is used, softening and melting during lamination are not sufficient, and it may be difficult to form a laminate layer on an image surface with good adhesion. When a resin having a temperature lower than the glass transition temperature is used, adhesion to the image surface is performed well. However, even at room temperature, the tackiness becomes strong and a tacky feeling (sticky feeling) appears. Processing is difficult and often impractical.
[0031]
Such aqueous emulsion thermoplastic resins include vinyl chloride resin, vinyl acetate resin, vinyl chloride-vinyl acetate copolymer resin, ethylene-vinyl acetate copolymer resin, acrylic resin, urethane resin, polyester Resin-based, polyamide resin-based, polyolefin-based such as polyethylene and polypropylene, and the like can be given.
[0032]
When the adhesive layer is formed using only the thermoplastic resin as described above and the roll-shaped laminated film is exposed to a 60 ° C. environment expected during general storage and transportation, the adhesive layer adheres to the opposite surface of the laminated film. Blocking results in the inability to use the laminate film. As a method of improving the blocking resistance of such a thermoplastic resin, a method in which silica particles or acrylic particles having a thickness equal to or greater than the thickness of the resin layer are mixed into the adhesive layer, and the method is improved by reducing the contact area with the opposite surface. There is. However, since the fine particles are included in the adhesive layer to increase the reflection and scattering, there is a problem that the image quality of the laminated print is deteriorated.
[0033]
In order to improve such a problem, the resin layer constituting the adhesive layer in the present invention contains an aqueous emulsion resin having a glass transition temperature of 80 to 130 ° C as a blocking resistance improving agent. The glass transition temperature of the emulsion resin can be measured by differential scanning calorimetry (abbreviation: DSC). Further, the method of obtaining the glass transition temperature from the temperature-heat flow curve obtained from the DSC measurement was in accordance with “Method for Measuring the Transition Temperature of Plastic” described in JIS K-7121.
[0034]
When the adhesive layer is formed by mixing the above-described emulsion resin having a high glass transition temperature with a thermoplastic resin having a glass transition temperature of 0 to 50 ° C. as a main component, the resin having a high glass transition temperature has poor film formability. Therefore, the adhesive layer is formed while maintaining the state of the emulsion fine particles to some extent during coating and drying. That is, since the adhesive layer is formed in a state where the resin having a high glass transition temperature is finely dispersed in the resin having a low glass transition temperature, the anti-blocking property which is a property of the resin having a high glass transition temperature is effectively exhibited. Is what is done. By containing such a resin component having a high glass transition temperature, the blocking resistance of the adhesive layer is improved, and the decrease in adhesiveness during laminating is also small. This is because the resin having a high glass transition temperature is finely dispersed in the resin having a low glass transition temperature, so that the softening property and the meltability of the resin having a low glass transition temperature during lamination are not impaired. . Further, by setting the compression temperature at the time of lamination to be equal to or higher than the glass transition temperature of the resin having a high glass transition temperature, it is possible to obtain a laminate film with almost no decrease in adhesiveness.
[0035]
Examples of the water-based emulsion resin having a glass transition temperature of 80 to 130 ° C. include mainly an acrylic emulsion resin, a styrene-based emulsion resin, and an acrylic silicone-based emulsion resin. In addition, the content of the resin component having a high glass transition temperature is preferably 5 to 40% by weight based on all resins forming the adhesive layer. If the content is less than 5% by weight, the effect on blocking resistance is not sufficient, and if the content exceeds 40% by weight, the adhesion at the time of lamination is greatly reduced, which is not preferable.
[0036]
Further, as in the case of the surface protective layer, an ultraviolet absorbing compound may be contained in the resin for the purpose of improving the resistance of the print to ultraviolet light deterioration. As described above, a method of adding an ultraviolet absorbing compound and using the compound or a method of copolymerizing the compound and the like are appropriately used.
[0037]
The thickness of the adhesive layer varies depending on the degree of unevenness on the image surface, but is preferably 2 to 30 μm.
[0038]
In the formation of these adhesive layers, well-known coating methods such as a roll coating method, a gravure coating method, a load bar coating method, and a slot die coating method can be used as in the formation of the surface protective layer. Further, at the time of coating, a dispersant, a surface tension adjuster, an antifoaming agent, an anti-blocking agent, and the like may be added to the coating liquid as needed.
[0039]
The layer structure of the transfer film layer in the laminate film of the present invention is formed by laminating at least the surface protective layer and the adhesive layer on a heat-resistant base material. An intermediate layer may be provided for the purpose of improving adhesion.
[0040]
The transfer film layer can be formed by performing lamination processing on the image surface using the laminate film having the above-described configuration. Here, various recording media and various recording methods can be used for image formation. In the present invention, the recording medium and the recording method mainly include an ink receiving layer, particularly porous inorganic particles, on a substrate. It is a preferable embodiment that an image is formed on a recording medium having an ink receiving layer as a component by using an ink jet recording method.
[0041]
As the porous inorganic particles that can be used for forming the ink receiving layer of such a recording medium, silica, alumina, magnesium carbonate, silica-alumina mixed crystal, silica-magnesium mixed crystal, or the like can be used.
[0042]
When forming the ink receiving layer, a binder can be used as necessary. For example, a water-soluble polymer such as polyvinyl alcohol, vinyl acetate, and acrylic, or an emulsion can be used. The mixing ratio of the porous inorganic particles to the binder is, for example, suitably 10 to 200 parts by weight, preferably 25 to 100 parts by weight, per 100 parts by weight of the porous inorganic particles. Further, various additives such as a dispersant, a fluorescent dye, a pH adjuster, a lubricant, and a surfactant can be added to the ink receiving layer as needed. The thickness of the ink receiving layer is selected, for example, from the range of 30 to 60 μm.
[0043]
On the other hand, the recording method in the ink jet recording is not particularly limited, such as an electrostatic suction method, a method using a piezoelectric element, and a method using a heating element. The ink used for the ink jet recording may be any ink which can be applied to the ink jet recording method, such as an aqueous medium containing a coloring material such as a dye or a pigment. When performing color recording, a full-color image can be formed by subtractive color mixing using cyan, magenta, and yellow, and if necessary, black if necessary.
[0044]
【Example】
Hereinafter, the present invention will be described in more detail with reference to Examples and the like.
[0045]
Reference Example 1 (production of recording medium)
0.7 parts by weight of a binder resin emulsion (Takamatsu Oil & Fats Co., Ltd .; NS120-XK) is dispersed in water with respect to 1 part by weight of silica (Mizusawa Chemical Industry Co., Ltd .; trade name: Mizukasil P-50), and solid A 20% by weight coating solution was prepared. This coating liquid was applied on a high-quality paper having a basis weight of 186 g / m ^{2 by} a slot die coater so that the film thickness after drying was 30 μm, and dried to obtain a recording medium.
[0046]
Reference Example 2 (Synthesis of emulsion resin (A1) for adhesive layer)
After a stirrer, a reflux condenser, a thermometer, and a nitrogen gas inlet tube were provided in a glass mixing vessel, 6 g of a nonionic emulsifier (trade name: Aqualon RN-30, manufactured by Daiichi Kogyo Seiyaku Co., Ltd.), an anionic emulsifier ( Trade name: Aqualon HS-30, manufactured by Daiichi Kogyo Seiyaku Co., Ltd.) 6 g, methyl methacrylate 29.8 g, ethyl acrylate 96.7 g, methacrylic acid 7.4 g, 2-hydroxyethyl methacrylate 14.9 g, t-dodecyl 5 parts of mercaptan and 156 g of deionized water were added and stirred to prepare a mixed solution having a total amount of 316.8 g.
[0047]
36 g of the mixed solution was taken out, transferred to another reaction vessel, and emulsified at 73 ° C. for 40 minutes under nitrogen gas introduction. Here, 17 g of ammonium peroxosulfate was dissolved in 36 g of deionized water and added as a polymerization initiator. Thereafter, the remaining amount of the mixture was immediately taken out of the mixing vessel, gradually dropped into the reaction vessel over 100 minutes, and polymerized at 73 ° C. After the completion of the dropwise addition, stirring was continued at 73 ° C. for 80 minutes to obtain an emulsion resin (A1) for an adhesive layer having a glass transition temperature of 11 ° C. and a weight average molecular weight of 25,000.
[0048]
Reference Example 3 (Synthesis of high glass transition temperature emulsion resin (A2))
An emulsion resin (A2) having a high glass transition temperature was obtained in the same manner as in Reference Example 2, except that the polymerization monomers were changed to 133.9 g of methyl methacrylate and 7.4 g of methacrylic acid. The glass transition temperature was 105 ° C., and the weight average molecular weight was 70,000.
[0049]
Reference Example 4 (Preparation of prints for laminate test)
For the ink receiving layer of the recording medium prepared in Reference Example 1, 720,000 ink droplets having an ink droplet volume of 8.5 pl in one inch square were printed using an inkjet printer (BJF8500, manufactured by Canon Inc.). Assuming that the amount of ink to be ejected was 100%, 100% of black, 50% each of cyan, magenta and yellow were ejected to form a black pattern, thereby producing a print for a laminate test.
[0050]
Example 1
Coating liquid 1: Polymer UV absorber 30M (Tg = 90 ° C., acrylic resin containing benzotriazole-based monomer having UV-absorbing group, 30% solution in toluene) manufactured by Otsuka Chemical Co., Ltd. diluted with toluene And adjusted to a solid content of 25% by weight.
[0051]
Coating liquid 2: 80 parts by weight and 20 parts by weight of the emulsion resin A1 obtained in Reference Example 2 and the acrylic emulsion resin A2 obtained in Reference Example 3 as solids, respectively, and ion-exchanged so as to have a solids content of 40% by weight. Diluted with water.
[0052]
Production of laminate film: The above coating solution 1 was applied to a 38 μm-thick PET film (manufactured by Toray Industries, Inc.) as a heat-resistant base material using a gravure coater so that the thickness after drying was 3 μm, and was applied at 100 ° C. Dried. Next, the coating liquid 2 was applied to the dried surface so that the thickness after drying became 12 μm, and dried at 100 ° C. to obtain a laminate film.
[0053]
Manufacture of laminated print: Using the print manufactured in Reference Example 4, using the apparatus shown in FIG. 4, the transfer film layer of the laminate film and the ink receiving layer of the recording medium are superimposed and rotated. Pass between a pair of rollers (roll diameter 63 mm, linear pressure 7 N / cm, temperature 150 ° C.), apply heat and pressure to form a transfer film layer on the ink receiving layer, and peel off the laminate film heat-resistant base material. Thus, a printed material subjected to lamination processing was obtained.
[0054]
Example 2
A laminate film was obtained in exactly the same manner as in Example 1 except that the adhesive layer of the laminate film was prepared using Coating Solution 3 having the following composition. Lamination was performed in the same manner as in Example 1 using the obtained laminate film.
[0055]
Coating liquid 3: 75 parts by weight and 25 parts by weight of an emulsion resin A1 and a styrene-based emulsion (trade name: 2592, manufactured by Nissin Chemical Co., Ltd., glass transition temperature: 100 ° C.), respectively, and a solid content of 40 parts by weight % Diluted with ion-exchanged water.
[0056]
Comparative Example 1
A laminate film was obtained in exactly the same manner as in Example 1 except that the adhesive layer of the laminate film was prepared using a coating liquid 4 having the following composition. Lamination was performed in the same manner as in Example 1 using the obtained laminate film.
[0057]
Coating liquid 4: 50 parts by weight and 50 parts by weight of emulsion resin A1 and emulsion resin A2 as solid contents, respectively, and diluted with ion-exchanged water so as to have a solid content of 40% by weight.
[0058]
Comparative Example 2
A laminate film was obtained in exactly the same manner as in Example 1, except that the adhesive layer of the laminate film was prepared by diluting the emulsion A1 with water to a solid content of 40% by weight. Lamination was performed in the same manner as in Example 1 using the obtained laminate film.
[0059]
The anti-blocking properties of the roll-shaped laminate films produced in the respective Examples and Comparative Examples were evaluated under the following conditions. Further, the image quality (image density, image glossiness) was evaluated for the laminated prints manufactured using these laminate films. Table 1 shows the obtained results.
[0060]
(1) Blocking resistance The laminated film on the roll was wrapped with a moisture-proof film, left in an environment at a temperature of 60 ° C. and a humidity of 50% for 50 hours, and the occurrence of blocking was observed and evaluated according to the following criteria.
◎: No occurrence of blocking and no change in adhesion surface state ○: No occurrence of blocking X: Occurrence of blocking
(2) Image Density The optical density of the black print immediately after lamination was measured with a reflection densitometer Mcbeth SERIES1200 (manufactured by Macbeth) and evaluated according to the following criteria.
：: Black density 2 or more ×: Black density less than 2
(3) Image glossiness The glossiness immediately after lamination was measured at an angle setting of 20 degrees using a gloss meter VG2000 (manufactured by Nippon Denshoku Industries Co., Ltd.). The glossiness was evaluated based on the reflectance (reflected light intensity / incident light intensity) and indicated by the following criteria.
：: More than 50% △: 30 to 50%
×: less than 30%
[Table 1]

[0064]
【The invention's effect】
According to the present invention, a transfer film layer including an adhesive layer and a surface protective layer is formed on an image surface by using such a laminate film, so that the image density and image gloss of a printed matter are greatly improved and a high-quality image is formed. And the weather resistance and abrasion resistance of the printed matter are greatly improved, and the blocking resistance of the laminated film is good, so that it is not necessary to adjust the back surface treatment of the laminated film or the storage environment, etc. A laminate film can be supplied.
[Brief description of the drawings]
FIG. 1 is a cross-sectional view showing a configuration of a laminate film. FIG. 2 is a cross-sectional view showing a configuration of an ink receiving paper. FIG. 3 is a cross-sectional view showing a configuration of a completed print after a heat-resistant base material of a laminate film is removed after lamination. Cross-sectional view [Fig. 4] Fusing mechanism providing thermocompression / transfer process of protective layer and printed matter [Explanation of symbols]
1: Laminated film unwinding reel 2: Laminated film 2a: Heat-resistant substrate 2b of laminated film: Surface protective layer 2c: Adhesive layer 3: Heating roll 4: Rotary encoder 5: Pressure roll 6: Cooling fans 7a, 7b: Fixed guide 7c of trailing end peeling mechanism: movable peeling shaft 8 of trailing end peeling mechanism: guide 10 of leading end peeling mechanism: take-up reel 11 for laminated film 11: guide for printed matter 12: first photo interrupter 13: second Photointerrupter 100a: base paper 100b: ink receiving layer

Claims (10)

A heat-resistant base material, a transfer film layer provided on the heat-resistant base material and a peelable transfer film layer, a laminate film for transferring the transfer film layer by heating and pressing on the image surface of the print,
The transfer film layer has a first layer serving as a surface protective layer on the image surface, and a second layer provided on the first layer and serving as an adhesive layer to the image surface,
A laminate film containing an aqueous emulsion resin having a glass transition temperature of 80 to 130 ° C. as a resin component constituting the second layer. 2. The laminate film according to claim 1, wherein the content of the aqueous emulsion resin having a glass transition temperature of 80 to 130 ° C. is 5 to 40% by weight in the resin component constituting the second layer. 3. The laminate film according to claim 1, wherein at least one of the layers constituting the transfer film layer contains an ultraviolet absorbing compound in a resin component. The laminated film according to claim 3, wherein the ultraviolet absorbing compound is an ultraviolet absorbing polymer. The laminate film according to any one of claims 1 to 4, wherein the transfer film layer is formed such that a print surface of a print is formed on a layer containing porous inorganic particles and is transferred onto the print surface. The laminate film according to claim 5, wherein the porous inorganic particles are amorphous silica. A laminate print, the printing screen of which is coated with the laminate film according to any one of claims 1 to 6. The laminated printed matter according to claim 7, wherein an image is formed on the printing screen by an inkjet image recording method. A method for producing a laminated print, wherein the laminate film according to any one of claims 1 to 6 is coated on a printing surface of the print, and then the heat-resistant substrate is peeled off. The method according to claim 9, wherein an image is formed on the printing screen by an inkjet image recording method.

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