JPH0995074A - Manufacture of sticking recording sheets and fixing binder - Google Patents

Abstract

PROBLEM TO BE SOLVED: To facilitate the sticking by superposing a heating adhesive type recording sheet which has an ink receiving layer on one side surface of a support and makes it possible to thread a printer and having a specific heating adhesive layer exhibiting no adhesive in a normal state and adhesive at the time of heating on the other surface with a government-printed postcard, and adhesively integrating them by an electromagnetic heater. SOLUTION: A heating adhesive type recording sheet has at least one ink receiving layer on one side surface of a support, and a heating adhesive layer of any of a delayed tack layer, a hot-melt layer or a heat sealing layer exhibiting no adhesive in a normal state and adhesive at the time of heating on the other surface, and makes it possible to thread a printer. The layer surface of the sheet and the rear surface of the postcard 2 are integrated by superposing, for example, one or a plurality of sets of opposed short sides 2 by using nonmetallic fixing binder and heating by an electromagnetic heater. The sheet can be stuck with the postcard 2 before or after printing.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for producing a laminated recording paper which can efficiently laminate an ink jet recording paper having an ink receiving layer capable of ink jet recording and a government postcard, and a fixing used for the lamination. It concerns a binder.

[0002]

2. Description of the Related Art Ink-jet recording is a method in which minute droplets of ink are made to fly and adhere to a recording sheet such as paper by various operating principles to record images and characters. It has features such as easy multi-coloring, great flexibility in recording patterns, and no need for development-fixing, and is rapidly spreading in various applications as a recording device for various figures including Chinese characters and color images. Furthermore, the image formed by the multi-color inkjet method is
It is possible to obtain a record comparable to multicolor printing by the plate making method. In addition, in applications requiring a small number of copies, it is being widely applied to the full-color image recording field because it is inexpensive.

As recording sheets used in the ink jet recording system, efforts have been made in terms of apparatuses and ink compositions in order to use high-quality paper or coated paper used for ordinary printing and writing. However, with the improvement of the performance of ink jet recording apparatuses such as high-speed, high-definition and full-color apparatuses, and expansion of applications, more advanced characteristics are also required for recording sheets. That is,
As the recording sheet, the density of print dots is high, the color tone is bright and vivid, the ink does not flow out or bleed even when the print dots overlap, and the print dots spread laterally. Is not unnecessarily large and high image reproducibility such as smooth surroundings and no blurring is required.

On the other hand, as an application for an individual who has a small number of copies to be made, it is used for postcards and the like, and inkjet recording of destinations and communication texts on both sides can be mentioned. Furthermore, as one of the recent environmental measures, there is a demand for recording sheets capable of recording on the front and back sides, which requires less number of sheets to be used. However, when ink-jet recording is performed on a general postcard, particularly when high-definition images are ink-jet recorded, the undulation of the opposite surface caused by ink bleeding and the visibility of the recording on the opposite surface due to strike-through of the ink on the opposite surface The problem of deterioration will arise.

When a recording paper capable of ink-jet recording on both sides is used for a postcard, a normal government-made postcard, a prepaid postcard with a lottery number (a postcard with a new year's gift, a postcard for hot summer with a lottery, "Kamomeru"), etc. It is a private postcard that can not be used, the opportunity for lottery is not available and the utility value is low.Although the fee is the same as a postcard made by a government, it is necessary to attach stamps, and it is a postal code frame, postcard or similar. It is necessary to give a description etc. to the surface.
In addition, the surface of the recording paper for inkjet recording may not be sufficiently water-resistant, and the printed part (including the inkjet-coded postal code entry frame, etc.) may bleed due to the moisture when stamps are applied, or the stamp may be damaged. There was a problem such as peeling and dropping together with the ink receiving layer.

Since the surface of official postcards has a certain degree of inkjet recording property, the problems of using inkjet recording and official postcards can be solved by integrating the recording paper on which inkjet recording is performed and the official postcard with glue or an adhesive. When adhesive or an adhesive is applied to the back surface of a recording paper after inkjet recording and is attached to a postcard manufactured by a public company, there is a problem that the inkjet recording is bleeded by the adhesive, the moisture contained in the adhesive, or the solvent.

Further, if printing is carried out by ink jet recording after the ink jet recording paper and a postcard manufactured by the government are pasted together with glue or an adhesive, the air permeability may change due to the water or solvent in the glue or the adhesive. There is a problem that the ink overflows and the drying property is poor. When ink jet recording (particularly color ink jet recording) is performed on the front and back sides of a postcard manufactured by a government, it is the same as when ink jet recording is performed on non-coated type paper, and the waviness on the other side caused by ink seepage when recording on one side, the other side There is a possibility that the visibility of recording may be deteriorated due to the strike-through of ink on the ink.

In order to overcome such problems, the present inventors have at least one or more ink receiving layers on one side of a support, and the other side shows tackiness and adhesiveness under normal conditions. Patent application was filed for the invention of a heat-adhesive recording paper which has a heat-adhesive layer of any one of a delayed tack layer, a hot-melt adhesive layer and a heat-seal layer, which exhibits stickiness or adhesiveness when heated without heating. .

However, if such a heat-adhesive recording paper is used to stick to a postcard manufactured by the government, one sheet is printed.
The only time-consuming and troublesome method was to stack the sheets and heat them with an iron. As a matter of course, it is possible to continuously heat the heat-adhesive recording paper and attach it to the government-made postcards that are continuously supplied, but the equipment becomes too large and the largest user for New Year's cards, etc. Was not suitable for.

[0010]

SUMMARY OF THE INVENTION Therefore, the problem to be solved by the present invention is to provide an efficient bonding method and a bonding method for bonding a heat-adhesive recording sheet having ink jet recording suitability to a postcard manufactured by a public sector. The purpose is to supply the fixing binder required for.

[0011]

Means for Solving the Problems The inventors of the present invention have conducted intensive studies to solve the above problems, and as a result, have reached the following invention.

A delayed tack layer having at least one or more ink receiving layers on one side of a support, and a tacky layer or a tacky layer which does not exhibit adhesiveness or adhesiveness under normal conditions on the other side, and a hot melt adhesive. Layer or a heat-sealing layer, which is provided with a heat-adhesive layer, is laminated on the heat-adhesive layer surface of a heat-adhesive recording sheet having printer paper flowability and the back surface of a government-made postcard, and heated by an electromagnetic wave heater. A method for manufacturing a laminated recording paper, which comprises integrally bonding an adhesive recording paper and a postcard manufactured by the government.

One or more of the following, in a state in which one set or a plurality of sets of heat-adhesive recording paper having a long side of 140 mm to 154 mm and a short side of 90 mm to 107 mm and one of a plurality of postcards are superposed. A non-metallic fixed binder for electromagnetic wave heating that fixes the. 1. Opposing short sides 2. Opposing long sides 3. 3. Opposing long sides and opposing short sides 4. Total area 5. Half the area

Using the above-mentioned fixed binder for electromagnetic wave heating, a plurality of sets are collectively pressure-bonded in a state in which a heat-adhesive recording paper and a postcard manufactured by the public are overlapped with each other, and heated by an electromagnetic heater to heat-bond each type recording. A method for producing a laminated recording paper, which comprises integrally bonding a paper and a postcard.

Hereinafter, the present invention will be described in detail.

In the present invention, the convenience of postcards manufactured by government and the ease of use of recording paper used for ink jet recording,
Both good ink jet recording properties were made compatible by efficiently pasting a recording paper having an ink receiving layer onto a postcard manufactured by a public sector. What is important here is that the recording paper having the ink receiving layer originally has a laminating function, and does not impair the image quality of the ink jet recording already performed by the laminating process or the ink jet recording property for performing ink jet recording from now on. It means that it can be attached to the back of a postcard made by a government, and it can be easily attached using an electromagnetic wave heating device (for example, a household microwave oven cooker using high frequency electromagnetic waves with a frequency of 1000 to 3000 MHz). It means that Since no solvent or solvent such as glue or adhesive is involved in the laminating process, it does not impair the ink jet recording property and does not contaminate the inside of the electromagnetic wave heating device, and makes a beautiful inkjet printing postcard after laminating. be able to.

In the present invention, the non-metal fixing binder capable of fixing the heat-adhesive recording paper and the long side and / or the short side of the official postcard, or the entire area of the official postcard, or half the area thereof. By fixing one or more sets of heat-adhesive recording paper and official postcards that were used together and heating with an electromagnetic wave heating device (microwave oven), it became possible to perform bonding very efficiently. .

The heat-adhesive recording paper can be attached to a government-made postcard before printing, or can be attached to a government-made postcard after printing. In the postcard laminated recording paper produced in the present invention, not only is the official postcard and the heat-adhesive recording paper isometric, but also the purpose is to align the edges of the official postcard neatly, and the postcard laminated recording paper at the edges. For the purpose of preventing them from adhering (blocking) to each other, the postcard laminated recording paper may be cut into a size having a longitudinal dimension of 140 mm or more and a lateral dimension of 90 mm or more. If it is smaller than this size, it is not preferable because it does not meet the standards for official postcards. For the purpose of obtaining such a size, and for the purpose of eliminating unnecessary adhesion on all sides (edges) of the postcard laminated recording paper, after the heat-adhesive recording paper and the official postcard are laminated, the postcard part The entire circumference of the sheet can be punched out to a predetermined size and punched postcard can be used as a laminated recording sheet.

In the present invention, the heat-adhesive recording paper and the official postcard are overlapped, and the long side, the short side, or both of them, the whole area of the official postcard, or the half area thereof can be fixed. The fixed binder for electromagnetic wave heating manufactured is preferably a synthetic resin, more preferably a synthetic resin having a softening point of 100 ° C. or higher, or a thermosetting resin.

As for the shape, as shown in the drawing, the one with the long side or the short side fixed has a cross section of a triangle with one apex cut or a circle with a part open, and a binder with a predetermined length is effective. Is. To fix the whole area of a postcard, or half of it, sandwich it with a plate-shaped plastic sheet corresponding to that area, and fix the two plastic sheets with a binder that fixes the long side or the short side, or The method of fixing with rubber bands or Velcro is effective. The two plastic sheets can be replaced by a single plastic sheet that can be opened and closed in the form of a spread.

The electromagnetic wave heating fixed binder of the present invention will be referred to as follows according to its usage. 1. For fixing the opposite short sides, it is a postcard for heating electromagnetic waves. Short side fixing binder. 2. For fixing the opposite long sides, a postcard for electromagnetic wave heating is a long side fixing binder. 3. For fixing the opposite long sides and the opposite short sides, a postcard for electromagnetic wave heating fixed all around. 4. A binder for fixing the entire area by pressing and fixing, a postcard for electromagnetic wave heating, fixed on the entire surface. 5. A half postcard fixing binder for electromagnetic wave heating that fixes half the area.

In the present invention, the base paper preferably used for the support is composed mainly of wood pulp and pigment. As wood pulp, chemical pulp such as LBKP and NBKP, GP, PGW, RMP, TMP, CTMP,
Including mechanical pulp such as CMP and CGP, pulp such as waste paper pulp such as DIP, and if necessary, conventionally known pigments and binders and sizing agents, fixing agents, yield improving agents, cationizing agents, paper strengthening agents, etc. The support can be manufactured by mixing various additives with one or more kinds and using various devices such as a Fourdrinier paper machine, a cylinder paper machine, and a twin wire paper machine, and can be paper-made with acidity, neutrality and alkalinity. When an ink receiving layer is provided, the ink receiving layer may be provided as it is on the base paper, or a multi-layer ink in which an ink receiving layer is provided after providing a size press with starch, polyvinyl alcohol, or an anchor coat layer. It may be a receiving layer.

Further, the base paper may be subjected to on-machine treatment with a calendering device comprising a metal roll and a synthetic resin roll. At that time, off-machine processing may be performed, and after processing, flatness may be controlled by further performing calendar processing using a machine calendar, a super calendar, or the like.

When the ink receiving layer is provided, the coating amount is not particularly limited, but if it is too small, the ink absorbability is good as in the case of the non-coat type ink jet recording sheet, but the image density, color and vividness are clear. Ink is diffused in the surface direction of the support, and the dot shape called feathering, which is jagged like bird feathers, is deteriorated. In addition, if the coating amount is too large, the drying load in the drying step after coating or impregnation increases, and not only does the productivity decrease due to the decrease in the coating or impregnation speed, but also when drying under a high load, the ink receiving layer The binder in the coating composition constituting (1) moves to the surface of the ink receiving layer together with the solvent that evaporates, and reduces the amount of voids on the surface. The problem that occurs in the ink receiving layer having a large coating amount is influenced by the concentration of the coating composition and the ability of the drying step, but is preferably 1 to 10 g / m ² .

One or more known white pigments may be used in the support and the ink receiving layer. For example, light calcium carbonate, heavy calcium carbonate, kaolin, talc, calcium sulfate, barium sulfate, titanium dioxide, zinc oxide, zinc sulfide, zinc carbonate, satin white, aluminum silicate, diatomaceous earth, calcium silicate, magnesium silicate, synthetic non-crystalline Amorphous silica, colloidal silica, colloidal alumina, pseudoboehmite, aluminum hydroxide, alumina, lithopone, zeolite, hydrohaloysite, magnesium carbonate, white inorganic pigments such as magnesium hydroxide, styrene plastic pigment, acrylic plastic pigment, polyethylene, Organic pigments such as microcapsules, urea resins, and melamine resins are exemplified.

Among the above, the white pigment contained as the main component in the ink receiving layer is preferably a porous inorganic pigment, and examples thereof include porous synthetic amorphous silica, porous magnesium carbonate and porous alumina. In particular, porous synthetic amorphous silica having a large pore volume is preferable.

The ink receiving layer is coated on the support by various machines such as blade coaters, roll coaters, air knife coaters, bar coaters, rod blade coaters, short dwell coaters and size presses on or off. Can be used on machines. After coating or impregnation, finishing may be performed using a calendar such as a machine calendar, a TG calendar, a super calendar, or a soft calendar.

The ink referred to in the present invention means the following colorants,
This is a recording liquid composed of a liquid medium and other additives.

Examples of the colorant include water-soluble dyes such as direct dyes, acid dyes, basic dyes, reactive dyes and food dyes.

As the solvent of the ink, water and various water-soluble organic solvents such as methyl alcohol, ethyl alcohol, n-propyl alcohol, isopropyl alcohol, n-butyl alcohol, sec-butyl alcohol, tert-butyl alcohol and isobutyl are used. Alkyl alcohols having 1 to 4 carbon atoms such as alcohols; amides such as dimethylformamide and dimethylacetamide; ketones or ketone alcohols such as acetone and diacetone alcohol; ethers such as tetrahydrofuran and dioxane; polyethylene glycol, polypropylene glycol, etc. Polyalkylene glycols; ethylene glycol, propylene glycol, butylene glycol, triethylene glycol, 1,2,6-hexanetriol, thiodiglycol Le, hexylene glycol,
Alkylene glycols having 2 to 6 alkylene groups such as diethylene glycol; and lower alkyl ethers of polyhydric alcohols such as glycerin, ethylene glycol methyl ether, diethylene glycol methyl (or ethyl) ether, and triethylene glycol monomethyl ether. Among these many water-soluble organic solvents, polyhydric alcohols such as diethylene glycol, and lower alkyl ethers of polyhydric alcohols such as triethylene glycol monomethyl ether and triethylene glycol monoethyl ether are preferable. Other additives include, for example, a pH adjusting agent, a sequestering agent, an antifungal agent, a viscosity adjusting agent, a surface tension adjusting agent, a wetting agent, a surfactant, and a rust preventive agent.

The coating liquid constituting the delayed tack layer is an acrylic resin, a vinyl chloride resin, a vinyl acetate resin,
One or several crystalline (solid) plasticizers in a dispersion liquid of styrene / acrylic copolymer resin, styrene / butadiene copolymer resin, polystyrene resin, polyamide resin, etc.
For example, dicyclohexyl phthalate, diphenyl phthalate, N-cyclohexyl-p-toluenesulfonamide, o / p-toluenesulfonamide and the like are included.

The delayed tack layer obtained by applying this coating solution and drying it at a temperature below the melting point of the plasticizer is dry to the touch in a normal state and can be passed through a general ink jet recording printer without any problem. Possible, but
Once heated above the melting point of the plasticizer, the delayed tack layer is plasticized and becomes tacky. Therefore, it can be bonded to high-quality paper, glass, metal, synthetic resin sheet, wood, etc. by light pressure, and the adhesiveness generated here remains even if the plasticizer is recrystallized. 3 to 6 in the delayed tack layer
It is possible to improve the paper passing property of the printer by containing 0% by weight of the pigment.

The resin constituting the hot melt layer is generally a thermoplastic material (100% solids) that melts in the temperature range of 60 ° C. to 180 ° C., and the polymer shown below,
Resins and waxes are used. Alkyd (modified polyester), asphalt and coal tar bitumen, coumarone-indene resin, rosin and its derivatives, terpene resin, wax (mineral, plant and petroleum), ethylene / ethyl acrylate copolymer, ethylene / acetic acid Vinyl copolymer, polyethylene, polyvinyl acetate and its copolymer, polycarbonate, polystyrene and its copolymer, polystyrene and its copolymer, polypropylene, polyvinyl ether, polyamide, polyester (thermoplastic), phenoxy resin (plasticizing ), Polyisoprene, polyurethane, thermoplastic elastomers (SBS, SIS, SEBS, etc.).

The hot melt adhesive basically contains a resin having the following three functions. That is, a high molecular weight polymer that imparts viscosity to the melt and cohesiveness to the solid, tackiness,
Synthetic elastomers that increase elasticity and strength, synthetic resins or natural resins that impart viscosity and fluidity and promote wettability. It may also contain waxes which reduce the cost and lower the viscosity of the mixture and make it easier to apply.
The hot melt layer can be applied as a solvent solution or as an emulsion by coating and drying, or by hot melt extrusion. By containing up to 60% by weight of the pigment in the hot melt layer, it is possible to improve the paper passing property of the printer.

The heat-sealing coating agent constituting the heat-sealing layer is a so-called narrow-sense heat-sealing coating agent as described in "All about Converting" (published by Processing Technology Research Group, 1993, P351-). It is different from the solvent hot-melt coating resin. For example, as its constituent resin, polyolefin resin, polyester, ethylene / vinyl acetate copolymer resin,
It is used in the form of an organic solvent solution of polyacrylate, vinyl chloride, ethylene / acrylic acid copolymer resin, or an aqueous dispersion solution.

A coating liquid is prepared using this resin, and coating is carried out.
The heat-sealing layer obtained by drying at a temperature higher than the minimum film-forming temperature is normally dry without stickiness even when touched with a finger, and can be passed through a general inkjet recording printer without problems. It is possible, but once heated above the melting point, the heat seal layer is plasticized and becomes sticky, and it is possible to bond to high quality paper, glass, metal, synthetic resin sheet, wood etc. with light pressure,
The adhesiveness generated here remains even after re-cooling. The heat seal layer can be applied as a solvent solution or as an emulsion and dried.

The delayed tack layer, hot melt layer and heat seal layer (hereinafter collectively referred to as the adhesive layer) may further contain other additives such as a dispersant, a thickener, a fluidity improver, a defoaming agent, Foam suppressor, release agent, foaming agent, penetrant, coloring dye, coloring pigment, fluorescent whitening agent, ultraviolet absorber, antioxidant, antiseptic, antifungal agent, water resistance agent, wet paper strength enhancer,
A dry paper strengthening agent, an antistatic agent, an antiaging agent, and the like can also be appropriately added.

Although the coating amount of the adhesive layer varies depending on the adhesive method, it is preferably in the range of 5 to 40 g / m ^{2 for} the purpose of ensuring good adhesiveness and ink jet recording property. When the coating amount of the adhesive layer is smaller than this range, the adhesion is insufficient and the bonding is weak. If it is larger than this range, it not only hinders the running of the paper but also causes a cost increase economically.

As a method of applying the adhesive layer, for example,
Gravure coater, gravure offset coater, bar coater, roll coater, air knife coater, U comma coater, AKKU coater, smoothing coater, micro gravure coater, reverse roll coater, 4 or 5 roll coater, blade coater, dip coater, falling curtain Any coating method such as a coater, a slide coater, a die coater, and a melt extrusion die may be used.

In the recording paper having an adhesive layer, a permeation preventive layer may be provided in contact with the support for the purpose of further preventing the resin forming the adhesive layer from permeating into the support. The role of the permeation preventive layer is to prevent penetration of the resin forming the adhesive layer into the support and to provide smoothness when the adhesive layer is provided. The permeation preventive layer that can be used in the present invention can be provided by an aqueous solution or emulsion of a water-soluble polymer or hydrophilic polymer, and examples thereof include the following substances.

Examples of natural polymers and semi-synthetic polymers include modified starch compounds such as starch, oxidized starch, etherified starch, dialdehyde-modified starch and esterified starch; alginic acid compounds such as sodium alginate and propylene glycol alginate; casein;
Examples thereof include modified cellulose compounds such as gelatin, pullulan, dextran, chitin, chitosan, gum latex, gum arabic, funori, natural gum, dextrin, methyl cellulose, ethyl cellulose, hydroxy cellulose and carboxymethyl cellulose.

As the synthetic polymer, completely saponified or partially saponified polyvinyl alcohol, acetoacetylated polyvinyl alcohol, esterification product of polyvinyl alcohol and polycarboxylic acid, carboxy modified polyvinyl alcohol, sulfonic acid modified polyvinyl alcohol,
Modified polyvinyl alcohol compounds such as olefin-modified polyvinyl alcohol, nitrile-modified polyvinyl alcohol, amide-modified polyvinyl alcohol, pyrrolidone-modified polyvinyl alcohol, polyethylene glycol, polyacrylic acid amide, polyacrylic acid, ammonium polyacrylate, polyacrylic Examples thereof include polyacrylic acid compounds such as acid soda, polyvinylpyrrolidone, polyethyleneimine, polyvinyl ether, polymaleic acid copolymer, polyacrylamide, and water-soluble alkyd resin.

Although not a water-soluble polymer in a strict sense, synthetic polymers such as styrene / butadiene copolymer, butadiene / methacrylate copolymer, acrylonitrile / butadiene / acrylic acid latex are dispersed in water. Emulsions can be used instead of aqueous polymer solutions. As the water-soluble polymer, the above polymers may be used alone or in the form of an aqueous solution by mixing them, and if necessary, a defoaming agent, a dispersant and the like may be used in combination. The penetration preventing layer can be formed by melt lamination of polyolefin resin or dry lamination as long as it prevents the resin or solvent from penetrating into the support.

[0044]

In the method for producing a postcard laminated recording paper of the present invention, the adhesive recording paper having the ink receiving layer originally has a laminating function, and the image quality of ink jet recording already carried out by the laminating step by the electromagnetic wave heating device. Alternatively, it means that it can be efficiently adhered to another support, particularly a (official) postcard, without impairing the ink jet recording property for performing ink jet recording.
That is, since no solvent such as glue or adhesive is used in the laminating step, the ink jet recording property is not impaired. Further, an adhesive type recording paper having an ink receiving layer on one surface of the support and an adhesive layer having a paper-passing property on the other surface, which does not normally exhibit tackiness or adhesiveness, on the other surface has a predetermined size. Since it is also cut, it is easy to align the postcard on the adhesive surface, it can be easily aligned by aligning the edge surfaces, and it does not get dirty by heat and pressure, making it easy to bond Becomes Furthermore, in the manufacturing process of the postcard laminated adhesive recording paper of the present invention, by using a long side, or a short side, or both, or by using an electromagnetic wave heating binder that can fix the entire area of the postcard or half the area thereof, It is possible to easily heat-bond (bond) one set or a plurality of sets of heat-bonded recording paper and a postcard with a household microwave oven. By the method of the present invention, it is possible to create a unique and beautiful official postcard by adhering it to the back surface of the official postcard or prepaid postcard with lottery number.

[0045]

EXAMPLES The present invention will be described below with reference to examples of the present invention, but the present invention is not limited to these examples. Further, “parts” and “%” shown in the examples represent parts by weight and% by weight, unless otherwise specified.

<Preliminary operation> The base paper for the support is LBKP.
Light calcium carbonate / heavy calcium carbonate / 100 parts of wood pulp consisting of 70 parts of freeness of 400 mlcsf and 30 parts of NBKP of freeness of 450 mlcsf /
25 parts of a pigment having a talc ratio of 30/35/35, 0.10 part of a commercial alkyl ketene dimer, 0.03 part of a commercial cationic acrylamide, 1.0 part of a commercial cationized starch,
After preparing 0.5 part of a sulfuric acid band, paper making was carried out with a Fourdrinier paper machine at a basis weight of 40 g / m ² .

An ink receiving layer was provided on the surface of the base paper thus produced. As an ink receiving layer composition, 100 parts of synthetic amorphous silica (Fanseal X37B: manufactured by Tokuyama Soda Co., Ltd.),
Polyvinyl alcohol (PVA117: Kuraray Co., Ltd.) 3
0 parts, cationic dye fixing agent (Sumiraz resin 100
20 parts (manufactured by Sumitomo Chemical Co., Ltd.) was used to prepare a solution, and the solid concentration was 13%. The prepared ink-receiving layer coating liquid was applied on the surface of the support by an air knife coater so that the dry coating amount was 5 g / m ² , to form an ink-receiving layer to obtain a recording paper. Inkjet recording is based on a commercially available color inkjet printer (Epson, MJ-
700V2C).

Example 1 On the opposite side of the recording paper obtained in the preliminary operation, a heat-sensitive adhesive as a delayed tack layer (manufactured by Toyo Ink Co., Heat Magic DW2000, solid content: 52%), and calcium carbonate as a pigment in solid weight% Mix for 10% with a solid content of 15 g /
m ² was applied and dried for 20 seconds under warm air at 45 ° C. to provide a delayed tack layer to obtain a delayed tack heat-adhesive recording paper. The back side of the postcard made by the government is superposed on the adhesive layer of this heat-adhesive recording sheet to form one set, and ten sets are bundled to form a binder (AB) having a length of 154 mm.
Both long sides were fixed with S resin, width 3 cm), put in a household microwave oven (500 w) and heated for 30 seconds to obtain a postcard laminated recording paper.

Example 2 The back side of a postcard manufactured by the government was superposed on the adhesive layer of the heat-adhesive recording paper obtained in Example 1 to form one set, and ten sets were bundled to form a binder (ABS) having a length of 107 mm. Made of resin,
A microwave oven for home use (50 cm)
0 w) and heated for 30 seconds to obtain a postcard laminated recording paper.

Example 3 The back side of a postcard manufactured by the government was superposed on the adhesive layer of the heat-adhesive recording paper obtained in Example 1 to form one set, and fifteen sets were bundled to form a binder having a length of 154 mm ( ABS resin, width 3 cm, both long sides, 90 mm in length (shortened by twice the thickness of the binder on the long side) (A
Both short sides were fixed with a BS resin (width: 3 cm), placed in a household microwave oven (500 w) and heated for 30 seconds to obtain a postcard laminated recording paper.

Example 4 The back surface of a postcard manufactured by the government was superposed on the adhesive layer of the heat-adhesive recording sheet obtained in Example 1 to form a set, and fifteen sets were bundled to cover the entire surface of the postcard. The front and back of the bundle were fixed with a binder (made of ABS resin, width: 3 cm), placed in a household microwave oven (500 w) and heated for 30 seconds to obtain a postcard laminated recording paper.

Example 5 The back surface of a postcard manufactured by the government was superposed on the adhesive layer of the heat-adhesive recording paper obtained in Example 1 to form a set, and 20 sets of the postcards were bundled to cover half the area of the postcard. The front and back of the bundle were fixed using two sets of binders of a size that could be covered up, put in a household microwave oven (500 w) and heated for 30 seconds to obtain a postcard laminated recording paper.

Example 6 On the opposite side of the recording paper obtained in the preliminary operation, a hot melt type hot melt type pressure sensitive adhesive (made by Konishi, as a hot melt layer)
MU74) was applied by spraying so as to have a coating amount of 50 g / m ² and then cooled to provide a hot melt layer to obtain a hot melt adhesive recording paper. The back side of the postcard made by the government is overlaid on the adhesive layer of this hot-melt heat-adhesive recording paper to form one set, and ten sets are bundled with a binder of 154 mm in length (made of ABS resin, width 3 cm) on both long sides. Fixed,
A postcard laminated recording paper was obtained by heating in a household microwave oven (500 w) for 30 seconds.

Example 7 The back side of a postcard manufactured by the government was superposed on the adhesive layer of the heat-adhesive recording sheet obtained in Example 6 to form one set, and ten sets were bundled to form a binder (ABS) having a length of 107 mm. Made of resin,
A microwave oven for home use (50 cm)
0 w) and heated for 30 seconds to obtain a postcard laminated recording paper.

Example 8 The back side of a postcard manufactured by the government was superposed on the adhesive layer of the heat-adhesive recording sheet obtained in Example 6 to form one set, and fifteen sets were bundled to form a binder having a length of 154 mm ( Made of ABS resin, width 3 cm, and both sides are 90 mm in length (shortened by twice the thickness of the binder on the long side) (A
Both short sides were fixed with a BS resin (width: 3 cm), placed in a household microwave oven (500 w) and heated for 30 seconds to obtain a postcard laminated recording paper.

Example 9 A large size that can cover the entire surface of a postcard in a state where the backside of a postcard manufactured by the government is overlaid on the adhesive layer of the heat-adhesive recording paper obtained in Example 6 to form a set of fifteen sets. The front and back of the bundle were fixed with a binder (made of ABS resin, width: 3 cm), placed in a household microwave oven (500 w) and heated for 30 seconds to obtain a postcard laminated recording paper.

Example 10 The back surface of a postcard manufactured by a public authority was superposed on the adhesive layer of the heat-adhesive recording paper obtained in Example 6 to form one set, and 20 sets of the postcards were bundled to cover half the area of the postcard. Fix the front and back of the bundle using two sets of binder (ABS resin, width 3 cm) of a size that can be covered up, put in a household microwave oven (500 w) and heat for 30 seconds to obtain postcard laminated recording paper It was

Example 11 An ethylene / acrylic acid copolymer resin (Aquatex Co., Ltd.) was used as a heat-sealing layer on the opposite surface of the recording paper obtained in the preliminary operation.
AC2010 Chuo Rika Kogyo Co., Ltd., solid content 45%) was applied so that the total solid content would be 15 g / m ² and dried under hot air at 110 ° C. for 20 seconds to provide a heat seal layer, and heat seal type recording paper. And On the adhesive layer of this heat-seal adhesive type recording paper, the back side of a government-made postcard is overlaid into one set, and ten sets are bundled, and both long sides are made with a binder (ABS resin, width 3 cm) having a length of 154 mm. It was fixed and put in a household microwave oven (500 w) and heated for 30 seconds to obtain a postcard laminated recording paper.

Example 12 The back side of a postcard manufactured by a public authority was superposed on the adhesive layer of the heat-adhesive recording sheet obtained in Example 11 to form one set, and ten sets were bundled to form a binder (ABS) having a length of 107 mm. Both sides of the resin were fixed with a width of 3 cm, and the sheet was put in a household microwave oven (500 w) and heated for 30 seconds to obtain a postcard laminated recording paper.

Example 13 The back side of a postcard manufactured by the government was superposed on the adhesive layer of the heat-adhesive recording sheet obtained in Example 11 to form one set, and fifteen sets were bundled to form a binder having a length of 154 mm ( ABS resin, width 3 cm, both long sides, 90 mm in length (shortened by twice the thickness of the binder on the long side) (A
Both short sides were fixed with a BS resin (width: 3 cm), placed in a household microwave oven (500 w) and heated for 30 seconds to obtain a postcard laminated recording paper.

Example 14 A large size that can cover up the entire surface of a postcard in the state in which the back surface of a postcard manufactured by the government is overlaid on the adhesive layer of the heat-adhesive recording paper obtained in Example 11 to form a set and fifteen sets are bundled. The front and back of the bundle were fixed with a binder (made of ABS resin, width: 3 cm), placed in a household microwave oven (500 w) and heated for 30 seconds to obtain a postcard laminated recording paper.

Example 15 The back surface of a postcard manufactured by the government was superposed on the adhesive layer of the heat-adhesive recording sheet obtained in Example 11 to form a set, and 20 sets of the postcards were bundled to cover half the area of the postcard. Fix the front and back of the bundle using two sets of binder (ABS resin, width 3 cm) of a size that can be covered up, put in a household microwave oven (500 w) and heat for 30 seconds to obtain postcard laminated recording paper It was

Example 16 The back side of a postcard manufactured by a public authority is superposed on the adhesive layer of the heat-adhesive recording sheet obtained in Example 11 to form one set, and the entire postcard is covered with the set in a bundle. The front and back of the bundle were fixed with the binder (made of ABS resin, width 3 cm), put in a household microwave oven (500 w) and heated for 10 seconds to obtain a postcard laminated recording paper.

Comparative Example 1 An ink receiving layer was provided on one surface of a high-quality paper having a basis weight of 200 g / m ² . As an ink receiving layer composition, 100 parts of synthetic amorphous silica (Fanseal X37B: manufactured by Tokuyama Soda Co., Ltd.),
Polyvinyl alcohol (PVA117: Kuraray Co., Ltd.) 3
0 parts, cationic dye fixing agent (Sumiraz resin 100
20 parts (manufactured by Sumitomo Chemical Co., Ltd.) was used to prepare a solution, and the solid concentration was 13%. The prepared ink-receiving layer coating liquid was applied on the surface of the support by an air knife coater so that the dry coating amount was 5 g / m ² , to form an ink-receiving layer to obtain a recording paper.

Comparative Example 2 A pressure-sensitive adhesive (Ricabond AP-37 manufactured by Chuo Rika Kogyo Co., Ltd.) was provided as a pressure-sensitive adhesive layer on the opposite surface of the recording paper obtained in the preliminary operation so that the dry weight was 20 g / m ^2. It was covered with a commercially available release paper to obtain an adhesive recording paper. After peeling off the release paper, the back surface of the official postcard was overlaid on the adhesive layer of this adhesive recording paper to obtain a postcard laminated recording paper.

Comparative Example 3 A postcard laminated recording paper was obtained by stacking the backside of a postcard manufactured by a public company on the adhesive layer of the heat-adhesive recording paper obtained in Example 1 and rubbing it with a heated iron for adhesion.

Comparative Example 4 A postcard laminated recording paper was obtained by stacking the backside of a postcard manufactured by a public authority on the adhesive layer of the heat-adhesive recording paper obtained in Example 6 and then rubbing it with a heated iron to adhere it.

Comparative Example 5 A postcard laminated recording paper was obtained by stacking the backside of a postcard manufactured by a public company on the adhesive layer of the heat-adhesive recording paper obtained in Example 11 and rubbing it with a heated iron for adhesion.

Comparative Example 6 Commercially available postcards are used as comparative examples.

The recording papers obtained in Examples and Comparative Examples were tested by the following method. The results are shown in Table 1 below.

<Test Method> 1) Printer Suitability The postcard laminated recording paper obtained in Examples and Comparative Examples and the recording paper provided with the ink receiving layer of Comparative Example 1, Comparative Example 6
Each of the postcards manufactured by No. 1 was printed with a color image on 1,000 sheets, and the suitability for the printer was judged by the total number of sheets in which color disorder was caused due to a paper feeding trouble and the number of sheets ejected by jamming. Naturally, the smaller the number, the better.

2) Printability In the test piece obtained in the printer suitability test, the ink jet recording portion was observed. There is no blurring in the ink jet recording area and the recording paper with sharpness is excellent in printability, slightly lacking in sharpness but printability is normal when the image is sufficiently clear, blurring occurs, and ink jet recording performance is poor. The case was judged to be poor in printability.

3) Adhesiveness Ink jet recording was carried out on the postcard laminated recording papers obtained in Examples and Comparative Examples 2 to 5, and the adhesive strength was measured by a Tensilon universal tensile tester. If the tensile strength (adhesive strength) is 200 gf / 25 mm or more, it can be said that the bonding is practically impossible.

4) Lamination Stability With respect to the postcard laminating recording papers obtained in Examples and Comparative Examples 2 to 5, all postcard laminating recording papers obtained from the test were observed. The case where the entire surface of the heat-adhesive recording paper is adhered is 100, and the case where the long pieces of the heat-adhesive recording paper are adhered but there is a float on the short side is 9
When 0, when the short pieces of the heat-adhesive recording paper are stuck together but there is a float on the long side, it is 80, and when the short side and the long side of the heat-adhesive recording paper are floated, the heat-adhesive type is 60. When the surroundings of the recording paper are stuck together, but there is a floating inside, it is evaluated with 80. In each case, when all the groups are stuck together, the evaluation is multiplied by 1 and a part of all the groups If they are pasted together, the evaluation is multiplied by the ratio (Example: If there are floats inside 2 out of 10 sets, 80 x (1-0.2) = 64) final evaluation is performed. It was The postcard laminated recording papers obtained in Example 16 and Comparative Examples 2 to 5 were continuously produced and observed.

5) Bonding position controllability After postcards are bonded together, postcards are observed by aligning the edges of the recording papers. If the edges are exactly aligned, the bonding position controllability is excellent and the edges are misaligned. It was judged that the controllable bonding position was poor.

[0076]

[Table 1]

<Evaluation> As is clear from the examples, a method for producing a laminated recording paper in which the heat-adhesive recording paper of the present invention and a postcard manufactured by public administration are integrally bonded, and a postcard laminated recording paper using a fixed binder is prepared. It can be seen that it can be obtained very efficiently and with accurate lamination. On the other hand, as is clear from the comparative example, the method of sticking the heat-bonding type recording paper and the official postcard using the heated iron is
Only one piece of work can be done at a time, which is inefficient, and it is difficult to perform alignment when attaching. Further, the recording paper of Comparative Example 1 cannot be used as a postcard manufactured by the government for New Year's cards with New Year's cards. The official postcard of Comparative Example 6 has poor printability.

[0078]

EFFECT OF THE INVENTION Using the electromagnetic wave heating binder for sticking postcards of the present invention, a heat-adhesive recording paper which can be easily printed by an ink jet printer and a postcard are superposed and heated by an electromagnetic wave heating device (microwave oven). As a result, the heat-adhesive recording paper can be easily attached to a government-made postcard, and a beautiful postcard can be easily produced, and its utility value is great.

[Brief description of drawings]

FIG. 1 is a schematic plan view of a binder for fixing short sides of a postcard for heating electromagnetic waves of the present invention.

FIG. 2 is a schematic plan view of a binder for fixing a long side of a postcard for electromagnetic wave heating according to the present invention.

FIG. 3 is a schematic plan view of an all around fixed postcard for electromagnetic wave heating postcards of the present invention.

FIG. 4 is a schematic plan view of a binder for fixing the entire surface of a postcard for electromagnetic wave heating according to the present invention.

FIG. 5 is a schematic plan view of a binder for fixing a half postcard for electromagnetic wave heating of the present invention.

FIG. 6 is a schematic plan view of a binder for fixing a half postcard for electromagnetic wave heating of the present invention.

FIG. 7 is a schematic sectional view of a short-side (long-side) fixed binder for an electromagnetic wave heating postcard of the present invention.

FIG. 8 is a schematic sectional view of a short-side (long-side) fixed binder for an electromagnetic wave heating postcard of the present invention.

FIG. 9 is a schematic sectional view of a binder for fixing the entire surface of a postcard for heating electromagnetic waves of the present invention.

[Explanation of symbols]

 1 Electromagnetic wave heating postcard short side fixed binder 2 Postcard 3 Electromagnetic wave heating postcard long side fixed binder 4 Electromagnetic wave heating postcard whole surface fixed binder 5 Electromagnetic wave heating half postcard fixed binder

Continuation of the front page (51) Int.Cl. ⁶ Identification number Reference number within the agency FI Technical display location C09J 5/06 JGV C09J 5/06 JGV 7/02 7/02 JJA JJA JJH JJH JLE JLE D21H 19/20 D21H 1 / 34 E

Claims (3)

[Claims] 1. A delayed tack layer, which has at least one or more ink receiving layers on one surface of a support, and which does not exhibit tackiness or adhesiveness under normal conditions on the other side and which exhibits tackiness or adhesiveness when heated, hot. Melt adhesive layer, heat-adhesive layer of the heat-adhesive recording paper having a paper-passing property provided with a heat-adhesive layer of the heat-sealing layer and the back surface of the official postcard are overlaid and heated by an electromagnetic wave heater. A method for producing a laminated recording paper, which comprises integrally bonding the heat-adhesive recording paper and the officially made postcard. 2. The long side of one leaf is 140 mm to 154 mm,
A non-metallic fixed binder for electromagnetic wave heating, which fixes one or more of the following in a state in which one set or a plurality of sets of heat-adhesive recording paper having a short side of 90 mm to 107 mm and superposed postcards are stacked. 1. Opposing short sides 2. Opposing long sides 3. 3. Opposing long sides and opposing short sides 4. Total area 5. Half the area 3. The fixed binder for electromagnetic wave heating according to claim 2 is used, and a plurality of sets are collectively pressure-bonded in a state in which a heat-adhesive recording paper and a postcard are superposed and heated by an electromagnetic wave heater. 2. The method for manufacturing a laminated recording paper according to claim 1, wherein the heat-adhesive recording paper and the postcard are integrally bonded.