JPH1031323A - Stuck recording paper - Google Patents

Abstract

PROBLEM TO BE SOLVED: To obtain heat adhesive recording paper having an electrophotographic transfer recording aptitude and to efficiently stick it to a post card by providing a toner fixing layer for electrophotography on one surface of a support and a heat seal layer which shows neither stickiness nor adhesive property in an ordinary state but shows the stickiness or the adhesive property at the time of heating on the other surface thereof. SOLUTION: The recording paper having the fixing ability of electrophotographic transfer toner has a sticking function and can be stuck to the postal card without spoiling image quality in transfer recording executed or transfer recording ability for performing the transfer recording hereafter in a sticking stage. They can be easily stuck by using an iron, a heat sealer or an electromagnetic wave heating device (domestic microwave oven cooker). Since adhesive is not used in the sticking stage, the paper being the support does not become rugged, and the heater is prevented from being soiled. Therefore, the beautiful postal card with the transfer recording is obtained after sticking.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a heat-sealable electrophotographic transfer recording paper which can efficiently bond an electrophotographic transfer recording paper excellent in electrophotographic suitability to a postcard made by government, and this recording paper. The present invention relates to a method for manufacturing a laminated recording paper using the same.

[0002]

2. Description of the Related Art In recent years, as a means of color hard copy or color print output, an apparatus using an electrophotographic transfer recording system has been simplified, has no noise and wasteful waste, and has improved operability, printing speed, and maintainability. It is widely used because of its advantages such as superiority.

[0003] Such electrophotographic transfer recording is used for producing posters and pamphlets, or for color copying, color original drawings for overhead projectors, and the like.
Used for postcards, greeting cards, and the like, it is possible to provide a photo-like image on the communication surface or record communication messages. However, in order to obtain good image recording by electrophotographic transfer recording, it is necessary to have a flatness of toner fixing property corresponding to the resolution, and further fix the toner so that the transferred toner does not blur or blur. / Recording properties suitable for immobilization are required. Also, when printing and recording, if the adhesion between the photosensitive drum or transfer belt loaded with toner and the transfer recording paper is not sufficient, the image may not be transferred to the transfer recording paper and may be lost in white. For this reason,
It has been difficult to transfer and record good electrophotographic images on the back surface of postcards made of ordinary high-quality paper or recycled paper whose surface properties are not so smooth.

[0004] Therefore, when a postcard is to be manufactured by using the electrophotographic transfer recording method, a special electrophotographic transfer paper is used as a support, and a print such as a "postcard" is printed on the opposite surface. I had no choice but to make a private postcard. However, when using electrophotographic transfer recording paper for postcards, private postcards such as ordinary government-made postcards, prepaid postcards with lottery numbers (postcards with new year balls, postcards for hot summer visits with lottery), etc. cannot be used. Becomes
In addition to being unable to use lottery opportunities, the utility value is low, and even though the fee is the same as government-made postcards, it is necessary to attach stamps and apply postal code frames, postcards or similar descriptions on the surface There is a need.

[0005] Although the problem of the use of the electrophotographic transfer recording and the use of the official postcard can be achieved by integrating the recording paper on which the electrophotographic transfer recording has been performed and the official postcard with glue or an adhesive, the recording after the electrophotographic transfer recording has been performed. The method of applying glue or an adhesive to the back of paper and bonding it to a government-made postcard was a very cumbersome process when many postcards such as New Year's cards had to be processed at once at the same time.

[0006]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is to provide a heat-adhesive recording paper suitable for electrophotographic transfer recording, and to provide an efficient lamination with a postcard. It is to provide a method.

[0007]

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.

An electrophotographic transfer method in which one side of a support has an electrophotographic toner fixing property, and the other side is provided with a heat-sealing layer which exhibits neither tackiness nor adhesiveness under normal conditions and exhibits tackiness or adhesiveness when heated. Heat sealing adhesive electrophotographic transfer recording paper with recording device paper passing properties.

The heat seal layer of the above heat seal adhesive electrophotographic transfer recording paper has an average particle size of 1 to 25 μm.
A heat-sealing adhesive electrophotographic transfer recording sheet having excellent paper-passing properties, comprising:

A heat-sealing adhesive in which one side of the support has an electrophotographic toner-fixing property and the other side has a heat-sealing layer which shows neither tackiness nor adhesiveness under normal conditions and shows tackiness or adhesiveness when heated. A heat-sealable electrophotographic transfer recording paper with a protective sheet, wherein a protective sheet is releasably adhered to the heat seal layer of the electrophotographic transfer recording paper.

[0011] A laminated recording paper characterized in that the heat seal adhesive electrophotographic transfer recording paper described above and high quality paper are adhered by heating.

[0012] The laminated postcard, wherein the high-quality paper described above is a government-made postcard.

An electrophotographic transfer in which an electrophotographic toner fixing property is provided on one side of a support, and a heat seal layer is provided on the other side, which exhibits neither tackiness nor adhesion in a normal state and exhibits tackiness or adhesion when heated. After transferring the toner to the heat-seal adhesive electrophotographic transfer recording paper having a paper-passing property by an electrophotographic transfer method, the toner is superimposed on high-quality paper in contact with the heat seal layer, and a heating device for fixing the toner is provided. A method for producing laminated recording paper, characterized in that the toner is fixed for electrophotographic transfer recording by passing the toner, and that the laminated paper is laminated with high quality paper.

The adhesive surface of the electrophotographic transfer recording paper having the heat seal adhesive property and the back surface of the postcard are overlapped to form one set, and one set or a plurality of sets are overlapped and heated by an electromagnetic wave heater to form the electronic device. A method for producing a laminated recording paper, wherein the photographic transfer recording paper and the postcard are bonded and integrated.

[0015] The adhesive surface of the electrophotographic transfer recording paper having the heat seal adhesive property is overlapped with the back surface of the postcard,
Further, a polyolefin resin sheet or Teflon is superimposed as a flat toner barrier sheet facing the toner fixing surface of the electrophotographic transfer recording paper to form one set, and one or more sets are superimposed and heated by an electromagnetic wave heater. Wherein the electrophotographic transfer recording paper and the postcard are bonded and integrated.

[0016]

DESCRIPTION OF THE PREFERRED EMBODIMENTS In the present invention, all of the convenience of government-made postcards, the ease of use of recording paper suitable for electrophotographic transfer recording (especially in color), and the good electrophotographic transfer recording properties are described. The compatibility was achieved by efficiently attaching a recording paper having a toner fixing property to an official postcard.
What is important here is that the recording paper having the electrophotographic transfer toner fixing property originally has a laminating function, and the image quality of the electrophotographic transfer recording already performed in the laminating process or an electronic image for performing the electrophotographic transfer recording from now on. This means that it can be bonded to government-made postcards without impairing the photographic transfer recordability, and can be easily bonded using an iron, a simple heat sealer, or an electromagnetic wave heating device (household microwave cooker). That is.
Since no solvent or solvent such as glue or adhesive is interposed in the laminating process, no irregularities are generated on the paper as the support, so that the recording properties of the electrophotographic transfer are not impaired, and a heating device such as an electromagnetic wave heating device is used. A beautiful electrophotographic transfer recording postcard after lamination without contaminating the toner.

In the present invention, a binder capable of fixing the heat-sealable electrophotographic transfer recording paper and the long side and / or the short side of the postcard, or both, or the entire area of the postcard or half of the postcard is used. By fixing one or more sets of superimposed heat-adhesive recording papers and postcards and heating them with an electromagnetic wave heating device (microwave oven), they can be bonded very efficiently.

The heat-sealing adhesive recording paper of the present invention can be bonded to a postcard before electrophotographic transfer recording, or can be bonded to a postcard after electrophotographic transfer recording.

In the heat seal adhesive electrophotographic transfer recording paper and the postcard lamination recording paper produced in the present invention, not only the postcard and the recording paper are of equal size, but also the purpose of aligning the edges of the postcard neatly. In order to prevent the post-bonding recording papers from adhering to each other (blocking) at the ends, the vertical size of the post-card bonding recording paper is 140 mm to 154 mm and the horizontal size is 90 mm to 1 mm.
It is easy to use if it is cut to a size of 07 mm. If it is larger than this size, it does not satisfy the standard as a postcard, which is not preferable. Although smaller than this size can be used as a bonding sheet, it is necessary to perform sufficient positioning with the postcard. For the purpose of obtaining such a size and for the purpose of eliminating unnecessary adhesion on all sides (ends) of the postcard lamination recording paper, after the recording paper and the postcard are laminated,
Punch the entire circumference of the postcard part and finish it to the specified size,
Punched postcards can be used as lamination recording paper.

The heat seal adhesive electrophotographic transfer recording paper of the present invention has one long side of 140 mm to 154 mm,
A heat seal adhesive electrophotographic transfer recording for postcards by performing a process having a short side having a size of 90 mm to 107 mm and having a region surrounded by perforations penetrating the recording paper from the opposite side of the heat seal layer. As paper, convenience in postcard lamination can be ensured.

In the heat seal adhesive electrophotographic transfer recording paper perforated for postcards of the present invention, the area surrounded by the perforations may be a long side, a short side, or two or more continuous sides. In a state where
Adhesive recording paper with continuous perforations can also be used.

Further, the area surrounded by the perforations on the post-perforated, adhesive recording paper is a field consisting of two long sides and two short sides. It is also possible to use a heat-sealing adhesive electrophotographic transfer recording paper with a continuous cross-shaped perforation, and to increase the convenience in printing.

The electrophotographic transfer / recording apparatus of the present invention refers to an electrophotographic transfer printer or an electrophotographic transfer / copying apparatus. For a toner transfer mechanism of an electrophotographic transfer / recording type full-color copying machine or printer, for example, electrophotographic Journal of the Society of Japan, Vol. 29, No. 1 (1990), pp. 62-69, Journal of the Electrophotographic Society of Japan, Vol. 32, No. 2, 1993, pp. 74-79,
There are various types of toner transfer methods as described in the printed magazine, Vol. 77, No. 5, (1994), pp. 11-16. These schemes are briefly summarized as follows.

<Transfer Drum Method> A method in which a transfer recording sheet is held on a transfer drum formed of a dielectric film, and toner images are aligned and superimposed for each color.

<Intermediate Transfer Method> After the toner image on the photosensitive member is not directly transferred to the transfer recording paper, it is transferred to an intermediate transfer member constituted by a dielectric belt or the like for each color, and after multiple transfer,
In this method, the multi-layer toner image is re-transferred onto a transfer recording sheet at one time. The transfer recording paper can be transported linearly.

<Tandem system> A copying machine has four photosensitive members and four developing units, and performs multiple transfer of each color sequentially on transfer recording paper conveyed by a transfer belt.

<Batch transfer method> A toner is successively superimposed on a photoreceptor by a special process in which a transfer drum and an intermediate transfer member are omitted, and a full-color toner image is formed by development (multiple development). The batch transfer is performed in the same manner as described above.

The electrophotographic transfer recording paper used in the present invention may be any of the above-mentioned transfer methods. In any of these methods, when the toner is transferred to the transfer recording paper, the photosensitive member, the drum and the transfer The adhesion between the belt and the like and the transfer recording paper is important, and is an important factor in toner transferability.

When printing with a digital full-color copier or printer of the indirect dry electrophotographic type, the transfer recording paper for electrophotography is directly or indirectly transferred from the photosensitive drum and the transfer belt to the surface of the transfer recording paper. In order to fix the applied toner, the toner passes between heat rolls heated to a high temperature. Here, if the melting temperature of the heat seal layer provided on the electrophotographic transfer recording paper is too low, paper jam and jamming may be caused in this process. It has been clarified that such a problem can be avoided by dispersing a pigment having a large particle size to reduce the contact area with the heat roll.

When the heat seal adhesive electrophotographic transfer recording paper of the present invention has an appropriate rigidity, paper passing failure can be reduced. As a method of giving rigidity,
Raise the basis weight of the paper, adjust the degree of beating of the pulp used, increase the amount of cationized starch used for internal additives, use internal strength agents, and adjust the amount of starch and other binders attached to the size press. It can be achieved by means alone or in combination of means such as increasing or applying a surface strength agent in combination.

The heat seal adhesive electrophotographic transfer recording paper provided with the rigidity by the above-described means has a high rigidity, usually in a machine direction of the transfer recording paper in a direction perpendicular to the paper passing direction. By using a printing method in which paper is passed through a copying machine or a printer, it is possible to prevent the occurrence of printing failure during double-sided printing.

Other characteristics required of the electrophotographic transfer recording paper include ash content, opacity, whiteness, and smoothness in the paper. The ash content was set to 5.0 to 13.0% by weight, and the Beck smoothness of the transfer recording paper on the transfer recording side was set to 45.
By setting the period to 80 seconds, it is possible to obtain an electrophotographic transfer recording sheet having no halftone area roughness.

If the ash content in the paper is less than 5.0% by weight, the opacity is insufficient, and the smoothness is not easily obtained even in the calendering process. Therefore, the paper tends to be crushed by the calender, and the rigidity of the paper tends to decrease.

When the ash content in the paper is 13.0% by weight or more, the strength of the paper itself is difficult to obtain, and the rigidity is reduced. In addition, paper dust tends to be generated in the machine during printing, and the image quality tends to decrease as the number of printed sheets increases.

When printing with an indirect dry electrophotographic digital full-color copying machine or printer, the toner on the surface of the heat-sealable electrophotographic transfer recording paper is heated in the fixing section, and the binder in the toner melts. The toner is fixed on the paper surface. By smoothing the surface of the transfer recording paper, the supply of heat to the paper from the heating roll in the fixing unit is performed smoothly, and the melting of the binder in the toner proceeds.
The roughness of the image disappears. However, although the effect is promoted by the smoothing process of the transfer recording paper, if the smoothing process is performed too much, the rigidity of the paper is reduced.

Heat Seal Adhesive The smoothness of the electrophotographic transfer recording paper is smoothed to a Beck smoothness of 45 to 80 seconds, so that the paper surface is not greatly reduced in rigidity. , The fixability of the toner can be improved.

As described above, the ash content of the electrophotographic transfer recording paper excluding the heat seal layer is 5.0 to 13.0.
By weight%, the Beck smoothness of the front and back of the paper is 45 to 80 seconds, and the stiffness of the paper by the Clark method in the machine direction is 90 cm.
^3/100 using the electrophotographic transfer recording paper as above, the direction perpendicular to the paper feeding direction when the machine direction of the transfer recording sheet is printed by a digital full-color copying machines and printers indirect xerographic By employing such a printing method, it is possible to prevent the image from being rough and prevent the occurrence of toner transfer failure.

The base paper preferably used for the support of the heat-sealable electrophotographic transfer recording paper of the present invention is mainly composed of wood pulp and pigment. As wood pulp, chemical pulp such as LBKP and NBKP, GP, PG
Including mechanical pulp such as W, RMP, TMP, CTMP, CMP and CGP, pulp such as waste paper pulp such as DIP, etc., if necessary, conventionally known pigments and binders and sizing agents and fixing agents, retention agents, cationization And various additives such as paper-strengthening agents, and then mixed with one another, and the support is supported by various devices such as a fourdrinier paper machine, a twin wire paper machine, a combination paper machine, a round mesh paper machine, and a Yankee paper machine. It can be manufactured and can be made acidic, neutral or alkaline. or,
The base paper may be subjected to on-machine processing of a calender device including a metal roll and a synthetic resin roll. At that time, off-machine processing may be performed, and after the processing, flatness may be controlled by further performing calendar processing using a machine calendar, a super calendar, or the like.

As the filler, for example, light calcium carbonate, heavy calcium carbonate, kaolin, clay, talc,
Of calcium sulfate, barium sulfate, titanium dioxide, zinc oxide, zinc sulfide, satin white, aluminum silicate, diatomaceous earth, calcium silicate, magnesium silicate, synthetic silica, aluminum hydroxide, alumina, lithopone, zeolite, magnesium carbonate, magnesium hydroxide Such as white inorganic pigments, styrene-based plastic pigments,
Organic pigments such as acrylic plastic pigments, polyethylene, microcapsules, urea resins, and melamine resins.

Examples of the sizing agent include rosin sizing agents for acidic papermaking, modified rosin sizing agents for neutral papermaking, AK
D, ASA, cationic polymer type sizing agents, and the like. If necessary, a surface sizing agent can be applied to the surface of the transfer recording paper for electrophotography. Applying any one of acrylonitrile / vinyl formal / acrylate ester copolymer, styrene / acrylic acid copolymer or styrene / methacrylic acid copolymer as a surface sizing agent Is valid.

As a method for applying the above surface sizing agent by a size press, a conventional size press, a gate roll size press, a film transfer type size press, a rod coater, a bill blade, a short dwell coater or the like is used. Can be. At the same time, starch, binders such as polyvinyl alcohol, dimensional stabilizers such as ethylene-urea resin, inorganic conductive agents such as sodium chloride and potassium chloride,
Of course, it is possible to apply an organic conductive agent, a surfactant, a pigment, and a dye.

Furthermore, inorganic pigments such as silica, alumina, titanium oxide, kaolin, clay, talc, zinc oxide and barium sulfate, starch particles, cellulose powder, melamine resin fine particles, guanamine resin fine particles, and urethane resin fine particles are provided on the surface. Organic pigments such as epoxy resin fine particles, silicone resin fine particles and vinyl resin fine particles, hollow pigments such as vinyl resin hollow fine particles and melamine resin hollow fine particles, starch, casein, gelatin, polyvinyl alcohol, carboxymethyl cellulose, and hydroxyethyl cellulose. Such as water-soluble resins, styrene-butadiene,
Including resin emulsions such as acrylic and vinyl acetate, dispersants, crosslinking agents, dyes, fluorescent agents, ultraviolet absorbers, antioxidants, preservatives, surfactants, defoamers, thickeners, conductive agents, etc. A pigment coating layer coated with a gravure coater, roll coater, rod coater, die coater, curtain coater, blade coater, or the like can be used.

In the paper stock, various other anionic, nonionic, cationic or amphoteric paper strength improvers, etc., which have been conventionally used, may be used as long as the desired effects of the present invention are not impaired. An internal additive for papermaking can be appropriately selected and used as needed. For example, one or more of various starches, polyacrylamide, polyethyleneimine, polyamine, polyamide / polyamine, urea formalin resin, melamine formalin resin, vegetable gum, polyvinyl alcohol, latex, polyethylene oxide, polyamide resin are used. They can be used in combination as appropriate.

Further, if necessary, a dye, a pH adjuster,
Internal additives for paper such as pigments, wetting agents, defoamers, dispersants, antistatic agents, fluorescent brighteners, ultraviolet absorbers, light stabilizers, pitch control agents, slime control agents, etc. can also be contained. . In particular, as the pigment or filler, silica, alumina, titanium oxide, calcium carbonate, kaolin, clay, which can be generally used for papermaking,
Various fillers such as zinc oxide, barium sulfate, and other inorganic particles can be used alone or in combination, but when considered as an electrophotographic transfer recording paper, kaolin, titanium dioxide, neutral If it is a system, light calcium carbonate is desirable.

The resin constituting the heat seal layer used in the present invention includes resins such as polyolefin resin, polyester, ethylene / vinyl acetate copolymer resin, polyacrylate, vinyl chloride / vinyl acetate, ethylene / acrylic acid copolymer resin, and the like. It is used as it is in the form of an organic solvent solution or aqueous dispersion solution or without a solvent. A heat seal layer obtained by preparing and coating a coating liquid using these resins and drying it at a temperature higher than the minimum film forming temperature, or by laminating it on paper in a molten state, is usually touched with a finger. Even though it is dried without stickiness, it is possible to pass paper without any problem to general electrophotographic transfer recording device,
Once heated above the melting point, the heat seal layer is melted and becomes tacky, and it can be bonded to high quality paper, glass, metal, synthetic resin sheet, wood, etc. with light pressure. It remains even after recooling. The heat-sealing layer can contain a pigment having an average particle diameter of 1 to 25 μm to improve printer paper-passing properties. If the average particle size is smaller than 1 μm, the effect of the unevenness is poor, and the paper may be double-fed in the paper feeding at the time of printing. If the average particle size is larger than 25 μm, a heat roll for toner fixing of a printer or a copier may be damaged. There are cases. As pigments, silica, alumina, titanium oxide, kaolin, clay, talc, calcium carbonate, zinc oxide, inorganic pigments such as barium sulfate, starch particles, cellulose powder, melamine-based resin fine particles, guanamine-based resin fine particles, urethane-based resin fine particles, Organic pigments such as epoxy resin fine particles, silicone resin fine particles, Teflon fine particles, polyolefin resin fine particles, vinyl resin fine particles and the like, organic pigments such as vinyl resin hollow fine particles, hollow pigments such as melamine resin hollow fine particles are not particularly limited. It can be selected from those having high heat resistance and satisfying the average particle size.

The heat seal layer of the present invention may further contain, as other additives, organic pigments, inorganic pigments, matting agents, sliding agents, dispersants, thickeners, flow improvers, defoamers, and defoamers. Agents, mold release agents, foaming agents, penetrants, coloring dyes, coloring pigments, fluorescent brighteners, ultraviolet absorbers, antioxidants, preservatives, antibacterial agents, waterproofing agents, wet paper strength agents, dry paper A force enhancer, an antioxidant, and the like can be appropriately blended. Further, an antistatic agent can be added to the heat seal layer for the purpose of preventing static charge. Examples of the antistatic agent include surfactants such as cationic surfactants (quaternary ammonium salts, polyamine derivatives and the like), anionic surfactants (alkyl phosphate and the like), amphoteric surfactants and nonionic surfactants Surfactants and the like.

The amount of the heat-seal layer to be applied varies depending on the bonding method used in laminating, but is preferably in the range of 5 to 40 g / m ^{2 for} the purpose of ensuring good adhesiveness and electrophotographic transfer recordability. preferable. If the application amount of the heat seal layer is smaller than this range, the bonding may be weak due to insufficient adhesiveness, or a large amount of energy may be required for the bonding, so that the electrophotographic transfer recordability may be reduced. If it is larger than this range, it not only hinders the running of the paper but also causes a cost increase economically.

The method of applying the heat seal layer of the present invention includes, for example, a gravure coater, a gravure offset coater, a bar coater, a roll coater, an air knife coater, a U comma coater, an AKKU coater, a smoothing coater, a microgravure coater, and a reverse roll. Any coating method such as a coater, a four or five roll coater, a blade coater, a dip coater, a drop curtain coater, a slide coater, a die coater, and a melt extrusion die may be used.

In the electrophotographic transfer recording paper having a heat seal layer according to the present invention, a penetration preventing layer is provided in contact with the support for the purpose of further preventing the resin forming the heat seal layer from penetrating into the support. You may. The role of the permeation preventing layer is to prevent the resin forming the heat sealing layer from penetrating into the support and to impart smoothness when the heat sealing layer is provided. The anti-penetration layer that can be used in the present invention can be provided by a natural polymer or a synthetic 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 include gelatin, pullulan, dextran, chitin, chitosan, gum latex, gum arabic, funori, natural gum, dextrin, modified cellulose compounds such as methylcellulose, ethylcellulose, hydroxycellulose and carboxymethylcellulose. As synthetic polymers, fully or partially saponified polyvinyl alcohol,
Acetoacetylated polyvinyl alcohol, esterified product of polyvinyl alcohol and polycarboxylic acid, carboxy-modified polyvinyl alcohol, sulfonic acid-modified polyvinyl alcohol, olefin-modified polyvinyl alcohol, nitrile-modified polyvinyl alcohol, amide-modified polyvinyl alcohol, pyrrolidone A modified polyvinyl alcohol compound such as a modified polyvinyl alcohol,
Polyacrylic acid compounds such as polyethylene glycol, polyacrylic amide, polyacrylic acid, ammonium polyacrylate, sodium polyacrylate, polyvinylpyrrolidone, polyethyleneimine, polyvinyl ether, polymaleic acid copolymer, polyacrylamide, water-soluble alkyd resin And the like.

Although not a water-soluble polymer in a strict sense, styrene / butadiene copolymer, butadiene / methacrylate copolymer, acrylonitrile / butadiene /
An emulsion obtained by dispersing a synthetic polymer such as latex acrylate in water can be used instead of the water-soluble polymer solution. As the water-soluble polymer, the above-mentioned polymers may be used alone or as a mixture to form an aqueous solution if necessary.
A dispersant or the like can 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.

In bonding the heat seal adhesive electrophotographic transfer recording paper of the present invention to high quality paper, especially postcards, when a plurality of sets are heated and bonded at a time, the toner is re-melted by heating. For the purpose of preventing the recording medium facing the image receiving surface from being contaminated (in the case of lamination with a postcard, if it is superposed in the same direction, the postcard address surface corresponds to the postcard), a barrier sheet for the toner can be provided. . The barrier sheet is not particularly limited as long as it is not melted by heating, and high-quality paper, coated paper, laminated paper, and a polyolefin resin sheet such as polyethylene or polypropylene can be used. In particular, it has been found that the polyolefin resin sheet not only suppresses the retransfer of the toner, but also has a good effect of separating the barrier sheet and the electrophotographic transfer recording image receiving surface, and has an effect of suppressing bleeding of an image in the toner fixing layer. This is considered to be due to the characteristics of the polyolefin resin not heated by the electromagnetic wave heating device.

The heat-sealing adhesive electrophotographic transfer recording paper of the present invention has a long side of 140 mm to 154 mm and a short side of 90 mm to 107 mm, and penetrates the recording paper from the side opposite to the heat seal layer. It may have a region surrounded by perforations. Perforation pitch,
There are no particular restrictions on the width or type, and general perforation processing,
Any processing method such as micro perforation processing may be used. The area surrounded by perforations as used herein means that four sides may be surrounded by perforations, and one or two of the four sides may be the edges of the original heat seal adhesive electrophotographic transfer recording paper. It does not matter.

Further, in the heat-sealing adhesive electrophotographic transfer recording paper with perforations for a postcard according to the present invention, two or more areas surrounded by perforations by the long side or the short side or both sides are integrated in a continuous state. Or by touching one of the long sides with a perforation
By making the perforated continuous perforated recording paper in a two-sided four-sided shape with two short sides in contact with one side of the short side, a printer is used rather than one postcard size. The processing became simple and continuous processing enabled the printing speed to be increased, and the time required for paper replacement and the amount that could be stored in the stocker increased, making it extremely easy to use.

When the heat-sealable electrophotographic transfer recording paper used in the present invention is used in a size larger than a postcard,
Although the back side does not show adhesiveness or tackiness under normal conditions, the use of ink marks (marks and parentheses) causes the ink to flow during heat-fixing and stains postcards, and heat seal adhesive electrophotographic transfer recording When the sheets are overlapped, the transfer recording layer on the opposite side may be stained.
If the bonding surface (adhesion surface) is completely unmarked, it is difficult to position the postcard, and it is inconvenient because it is difficult to register the bonding even when heating or pressing. By using a perforation that penetrates the recording paper as in the present invention, it is easy to align the postcard due to the unevenness of the perforations on the surface of the heat seal layer, and at the time of lamination, it is easy to register the lamination, and Adhesion becomes easier epoch-making without contamination by heat compression. In addition, when perforations are made from the opposite surface of the heat seal layer, the electrophotographic transfer recording surface has no convex portions, so that toner does not come off or unfixed, and the heat sealable adhesive surface It has been found that there is a merit that the temporary fixation and adhesion are very easy because the postcard does not slip because the slightly convex portion is formed.

The protective sheet for the heat seal adhesive electrophotographic transfer recording paper used in the present invention is such that the heat seal adhesive electrophotographic transfer recording paper stops inside the electrophotographic transfer recording apparatus (printer or copier) due to some trouble. In the event that the sheet has been damaged, the sheet has a function of particularly protecting the heat roll, and may be made of paper, a plastic sheet such as a heat-resistant polyester film, or a metal foil such as an aluminum foil. Heat-seal adhesive The heat-sealable layer of the electrophotographic transfer recording paper can be peelably bonded by laminating the protective sheet with the protective sheet and lightly thermocompressing it. Preferably, processing is performed.

The operation of the present invention is summarized as follows. That is, the heat-sealing adhesive electrophotographic transfer recording paper of the present invention is particularly suitable for producing a method for producing a laminated recording paper with a postcard. Efficiently and efficiently with other supports, especially (government) postcards, without impairing the image quality of the electrophotographic transfer recording already performed by the laminating step with a heating device or the like, or the electrophotographic transfer recordability for performing the electrophotographic transfer recording from now on. This means that they can be pasted together. Since no solvent or solvent such as glue or adhesive is interposed in the laminating step, electrophotographic transfer recordability is not impaired. Furthermore, it has a toner fixing layer for electrophotographic transfer on one side of the support, and has a printer paper-passing property on the other side,
Normally, a heat-sealable electrophotographic transfer recording sheet provided with a heat-seal layer that does not exhibit tackiness or adhesiveness may be cut to a predetermined size, and it is easy to align a postcard on an adhesive surface. By aligning the edge surfaces, positioning can be easily performed, and recording paper, tools, and the surroundings are not stained by heating and pressing, and epoch-making quick and accurate laminating becomes easy. According to the method of the present invention, it is possible to produce a unique and beautiful government-made postcard by bonding to the back of a government-made postcard or a prepaid postcard with a lottery number.

[0058]

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 Examples are parts by weight and% by weight unless otherwise specified.

Preliminary operation <Base paper composition> LBKP (freeness: 450 ml, csf) 100 parts Calcium carbonate (Okutama Kogyo; TP-121) 15 parts AKD sizing agent (Arakawa Chemical; Size Pine) K-903) 0.1 part Sulfuric acid band 0.4 part Amphoteric starch (manufactured by Oji National Co .; Cato3210) 12 parts Yield improver (manufactured by Hymo Corporation; NR-11LS) 0.01 part 0.3% slurry of the above composition A base paper having a water content of 5.0% by weight, an ash content of 7.0% by weight, and a basis weight of 80 g / m ^{2 was} produced by a fourdrinier paper machine at a papermaking width of 1,300 mm and a papermaking speed of 150 m / min.

The base paper was subjected to a size press with the following composition to obtain a base paper for electrophotographic transfer recording having a solid content of 1.4 g / m ² .

<Composition of size press liquid> Oxidized starch (manufactured by Nippon Shokuhin Kabushiki Kaisha; MS-3800) 3 parts Styrene-acrylic surface sizing agent (Harima Chemical Co., Ltd .; KN-500) 0.20 parts Sodium chloride 0.20 96.60 parts water

The base paper for transfer recording for electrophotography was prepared by providing a heat seal layer as shown in the following examples and then applying a linear pressure of 50%.
It was calendered under the condition of kg / cm to obtain a heat seal adhesive electrophotographic transfer recording paper.

Example 1 On the opposite side of the base paper for electrophotographic transfer recording obtained in the preliminary operation,
Ethylene / vinyl acetate copolymer resin (Aquatex MC3800 manufactured by Chuo Rika Kogyo Co., Ltd., solid content 4)
0%) so that the total solid content is 15 g / m ^2.
After drying for 1 minute under warm air at a temperature of 0 ° C., a heat seal layer was provided to obtain heat seal adhesive electrophotographic transfer recording paper. The surface smoothness of the Beck heat seal adhesive electrophotographic transfer recording paper 60 seconds, stiffness of the machine direction of the paper by Clark method was 110 cm ^3/100. This heat seal adhesive electrophotographic transfer recording paper was cut to the size of a postcard, and after recording with an electrophotographic transfer printer, the back surface of the government-made postcard was superimposed on the adhesive layer to form a set of 20 sheets.
In a state where the set is bundled, the upper and lower surfaces are covered with a 3 mm ABS resin plate, fixed with rubber bands, and then put in an electromagnetic wave heater (household microwave oven, 500 w) and heated for 30 seconds to postcard bonding recording paper. I got

Example 2 On the opposite side of the base paper for electrophotographic transfer recording obtained in the preliminary operation,
Specially modified ethylene / vinyl acetate copolymer resin emulsion (Polysol EVA AD-910)
Wheat starch (average particle size: 20μ) as a pigment is mixed with Showa Kogaku Co., Ltd., 45% solid content, 30% solid weight%,
Coating was performed so that the total solid content was 15 g / m ^2, and drying was performed under warm air at 90 ° C. for 35 seconds to provide a heat seal layer, thereby obtaining heat seal adhesive electrophotographic transfer recording paper. The surface smoothness of the Beck heat seal adhesive electrophotographic transfer recording paper 58 seconds, stiffness of the machine direction of the paper by Clark method was 120 cm ^3/100. This heat-sealing adhesive electrophotographic transfer recording paper is cut into a postcard size, recorded by an electrophotographic transfer printer, and then a high-quality paper having a basis weight of 157 g / m ² is overlaid on the adhesive layer to form a set of 20 sets. 3mm ABS with top and bottom surfaces in a bundle
After covering with a resin plate and fixing the long and short sides with a binder, respectively, an electromagnetic wave heater (household microwave oven, 500w)
And heated for 40 seconds to obtain a laminated recording paper.

Example 3 On the opposite side of the base paper for electrophotographic transfer recording obtained in the preliminary operation,
Specially modified ethylene / vinyl acetate copolymer resin emulsion (Polysol EVA AD-910)
Calcium carbonate (average particle size: 3μ) as a pigment is mixed with Showa Kogaku Co., Ltd., 45% solids, 30% solid weight%.
The composition was applied to a solid content of 20 g / m ² and dried under hot air at 125 ° C. for 25 seconds to provide a heat-sealing layer to obtain a heat-sealing adhesive electrophotographic transfer recording paper. The surface smoothness of the Beck heat seal adhesive electrophotographic transfer recording paper 61 seconds, stiffness of the machine direction of the paper by Clark method was 125 cm ^3/100. This heat seal adhesive electrophotographic transfer recording paper is cut to the size of a postcard, and after recording with an electrophotographic transfer printer, the back surface of the government-made postcard is superimposed on the adhesive layer to form one set, and four sets are bundled. The sheet was heated several times from above and below with a home iron to obtain a postcard-bonded recording sheet.

Example 4 In Example 1, when performing bonding by electromagnetic wave heating,
A postcard laminated recording paper was obtained in the same manner as in Example 1 except that a high-density polyethylene sheet having a basis weight of 50 g / m ² was arranged so as to face the toner fixing layer of each heat seal adhesive electrophotographic transfer recording paper.

Example 5 In Example 1, when performing bonding by electromagnetic wave heating,
A postcard laminated recording paper was obtained in the same manner as in Example 1 except that a polypropylene sheet having a basis weight of 50 g / m ² was arranged facing the toner fixing layer of each heat seal adhesive electrophotographic transfer recording paper.

Example 6 In Example 1, when performing bonding by electromagnetic wave heating,
A postcard laminated recording paper was obtained in the same manner as in Example 1 except that high quality paper having a basis weight of 40 g / m ² was disposed facing the toner fixing layer of each heat seal adhesive electrophotographic transfer recording paper.

Example 7 In Example 1, when performing bonding by electromagnetic wave heating,
A postcard laminated recording paper was obtained in the same manner as in Example 1 except that a Teflon sheet having a basis weight of 30 g / m ² was arranged facing the toner fixing layer of each heat seal adhesive electrophotographic transfer recording paper.

Example 8 On the opposite side of the base paper for electrophotographic transfer recording obtained in the preliminary operation,
Specially modified ethylene / vinyl acetate copolymer resin emulsion (Polysol EVA AD-910)
Calcium carbonate (average particle size: 3μ) as a pigment is mixed with Showa Kogaku Co., Ltd., 45% solids, 30% solid weight%.
The coating was applied to a solid content of 20 g / m ² and dried under hot air at 95 ° C. for 25 seconds to form a heat-sealing layer to obtain a heat-sealing adhesive electrophotographic transfer recording paper. A heat-sealable electrophotographic transfer recording paper with a protective sheet was obtained by laminating a polypropylene layer of polypropylene-laminated paper as a protective sheet in contact with the heat-seal layer and lightly thermocompressing the protective sheet so that the protective sheet was releasably adhered. This heat seal adhesive electrophotographic transfer recording paper with a protective sheet is cut to the size of a postcard, and after recording with an electrophotographic transfer printer, the protective sheet is peeled off, and the back surface of the government-made postcard is overlaid on the adhesive layer to form a set. In a state where the four sets were bundled, the sheets were heated several times from above and below with a household iron to obtain a postcard stuck recording paper.

Example 9 The heat-seal adhesive electrophotographic transfer recording paper obtained in Example 1 was cut into a postcard size, and toner transfer was performed with an electrophotographic transfer printer (manufactured by Fuji Xerox Co., Ltd.). The heat seal layer and the back of the government-made postcard are overlapped to form a set, passed through a heating device for fixing the toner of an electrophotographic printer, and then used to fix the toner and heat seal adhesive electrophotographic transfer recording paper and postcard. Fixing was performed simultaneously.

Example 10 On the opposite side of the recording paper obtained by the preliminary operation, an ethylene / vinyl acetate copolymer resin (Aquatex MC) was used as a heat seal layer.
3800 (manufactured by Chuo Rika Kogyo Co., Ltd., solid content: 40%) so as to have a solid content of 15 g / m ^2, and dried under hot air at 125 ° C.
After drying for 0 second, a heat-sealing layer was provided to obtain a heat-adhesive recording paper. This heat-adhesive recording paper has a long side of 148.
mm, a perforation having a short side surrounded by a size of 100 mm was provided so as to penetrate from the toner fixing layer side, to obtain a heat-bonded recording paper with perforations. After recording and printing with an electrophotographic transfer printer, the heat seal layer of the perforated heat-adhesive recording paper and the government-made postcard are overlapped and adhered within the range of the perforation, and integrated by heating at 150 ° C with an iron, Recording paper with postcard was obtained.

Example 11 The heat-adhesive recording paper obtained in Example 10 had a long side of 1
Two perforations having a length of 48 mm and a short side surrounded by a size of 100 mm were provided in a state where two long sides were in contact with each other, thereby producing a continuous perforated adhesive recording paper. After recording and printing with an electrophotographic transfer printer, the sheet was folded at the perforated portion with the heat seal layer inside, and thermocompression-bonded with a simple laminator (manufactured by Ohm Electric Co., Ltd.) to obtain a bonded postcard.

Example 12 The heat-adhesive recording paper obtained in Example 10 had a long side of 1
Two perforations each having a length of 48 mm and a short side surrounded by a size of 100 mm were provided in a state where two short sides were in contact with each other, and an adhesive recording paper with continuous perforations was produced. After recording and printing with an electrophotographic transfer printer, the sheet was folded at the perforated portion with the heat seal layer inside, and thermocompression-bonded with a simple laminator (manufactured by Ohm Electric Co., Ltd.) to obtain a bonded postcard.

Example 13 The heat-adhesive recording paper obtained in Example 10 had a long side of 1
In a post-sealed perforated heat seal adhesive electrophotographic transfer recording paper having a perforation surrounded by a size of 48 mm and a short side of 100 mm, two areas surrounded by the perforation are in contact with one long side. , And a short-sided, continuous, perforated, heat-sealing adhesive electrophotographic transfer recording paper having a cross-shaped cross-section formed of four cross-sections in contact with one side of the short side. After recording and printing with an electrophotographic transfer printer, cut off with the long side touching, fold it with the heat seal layer inside at the long side perforation,
The laminated postcard was obtained by thermocompression bonding using a simple laminator (made by Ohm Electric).

COMPARATIVE EXAMPLE 1 In the preliminary operation, the basis weight of the base paper was set to 95 g / m ^2, and the same size press as in the preliminary operation was performed.
It was used as a base paper for electrophotographic transfer recording of 4 g / m ² . The electrophotographic transfer recording base paper was calendered under the condition of a linear pressure of 50 kg / cm without providing a heat seal layer to obtain electrophotographic transfer recording paper.

Comparative Example 2 An adhesive (Licabond AP-37, manufactured by Chuo Rika Kogyo Co., Ltd.) was provided as an adhesive layer on the opposite side of the recording paper obtained in the preliminary operation so as to have a dry weight of 20 g / m ^2. It was covered with a commercially available release paper to obtain an adhesive electrophotographic transfer recording paper.

Comparative Example 3 The release paper of the adhesive type electrophotographic transfer recording paper of Comparative Example 2 was peeled off, and a government-made postcard was overlaid and adhered to obtain a postcard laminated recording paper.

COMPARATIVE EXAMPLE 4 A commercially available postcard is used as Comparative Example 4.

The recording papers obtained in Examples and Comparative Examples were tested by the following methods. The results are shown in Tables 1 and 2.

[Test Method] 1) Suitability for Printer 3000 color images were printed on the heat-sealing adhesive electrophotographic transfer recording paper obtained in Examples and Comparative Examples using an electrophotographic transfer recording apparatus (manufactured by Fuji Xerox Co., Ltd.). Do,
The number of sheets that cause color disturbance due to paper feeding problems,
The suitability of the printer as paper passing was determined by the total number of sheets discharged by jamming. Naturally, the smaller the better, the better.

2) Printability After printing a color image on the recording paper obtained in each of the examples and comparative examples, the electrophotographic transfer recording portion was observed with a magnifying loupe. There is no color unevenness or white spots in the electrophotographic transfer recording part, and the recording paper with sharpness is excellent in printability, there is a very small amount of color unevenness and white spots and if you pay attention, it is impaired sharpness The printability is good when it is seen, and the printability is poor when the image is slightly sharp but the image is sufficiently clear. Was determined.

3) Swell The swell was printed by an electrophotographic transfer recording printer, and the recording surface after lamination with an official postcard was visually judged. What does not matter in quality is the evaluation of A and B. A: The swell is not recognized, and the appearance is not spoiled. B: The swell is small and does not spoil the aesthetic appearance. C: The undulation is large, and the appearance is impaired.

4) Adhesion The adhesion strength of the recording paper obtained by laminating the postcards or the high-quality papers obtained in Examples and Comparative Examples or self-laminating 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. In Comparative Example 2, the release paper was peeled off and bonded to a postcard. 40
The display of 0 <indicates that the recording paper is broken and the bonding is very preferable.

5) Toner Transferability In the postcard (or high-quality paper) bonded recording paper obtained in Examples 1 to 8 and Comparative Example 3, the postcard addressing surface (or the postcard address) of all the bonded recording paper obtained from the test was used. The corresponding surface) was observed. If the postcard address surface (or the equivalent surface) is not dirty at all per 25 sheets of laminated recording paper, the deduction point is 0 and 100 points, and if it is faintly dirty, it is -1 point per sheet. Toner transferability was evaluated by subtracting from 100 points each of -2 points per sheet when it was so dirty that it could be recognized, and -4 points per sheet when it was so dirty that it was difficult to read the address. .

6) Laminating position controllability In the case of postcard laminating, a recording sheet and a government-made postcard are superimposed and aligned, and the position can be easily controlled so that both pieces fit together. Good bonding position controllability for objects that are easier to position control than for bonding with glue. It was judged as poor.

[0087]

[Table 1]

[0088]

[Table 2]

Evaluation: As is clear from the examples, the heat-adhesive electrophotographic transfer recording in which the support of the present invention had a toner fixing layer for electrophotographic transfer recording on one side and a heat seal layer on the opposite side. The paper has good paper-passing properties in an electrophotographic transfer recording apparatus and good printing properties. Laminated recording paper can be easily obtained by performing heat treatment by superposing it on another paper (for example, a postcard made by government) using the heat seal adhesiveness inherent in this recording paper. Such bonding can be performed by using an electromagnetic wave heating device (household microwave oven) by combining a plurality of sets, which is very efficient and has good curling properties even after bonding. I have. When a plurality of sets of electrophotographic transfer recording paper and a postcard are bonded by this method, the dye may be slightly transferred to the address surface of the postcard. Matching can be achieved. Further, when the material of the barrier sheet was a polyolefin resin such as polyethylene or polypropylene and Teflon, it was found that the recording properties of the toner fixing layer of the electrophotographic transfer recording paper were kept good even after lamination. The good print recordability compared to the case where high quality paper is used for the barrier sheet is that these materials are not overheated by electromagnetic wave heating, printing is not affected, and the toner Probably to prevent migration only.

Further, if the paper conveyance of the heat seal adhesive electrophotographic transfer recording paper is interrupted due to some trouble inside the electrophotographic transfer recording printer or the copying machine, the heat seal layer may be melted and the machine may be damaged. However, by providing a protective sheet facing the heat seal layer, damage to the heat roll can be suppressed. Further, not only the toner can be fixed by using the heat of the heat roll, but also the postcard and the heat seal adhesive electrophotographic transfer recording paper can be bonded together, which can be used as a very simple bonding method.

On the other hand, as is clear from the comparative example, when an adhesive exhibiting tackiness in a normal state is used on the opposite surface of the toner fixing layer for electrophotographic transfer recording, the positioning at the time of lamination with the postcard is very poor. In addition, the printability deteriorates. In Comparative Example 1 having no adhesive layer, lamination with a postcard cannot be performed, and the chance of lottery such as a New Year's card with a New Year's ball is lost.

[0092]

The heat-sealable electrophotographic transfer recording paper of the present invention can be bonded to a postcard after recording by heating it with an electromagnetic wave heating device (microwave oven) or an iron, and before bonding. Can be easily printed with an electrophotographic transfer printer, can be pasted on a government-made postcard, and a beautiful postcard can be easily produced, and its utility value is great.

Claims (8)

[Claims] 1. An electronic device comprising: a support having one side having an electrophotographic toner fixing property and a heat seal layer having a tackiness or an adhesive property upon heating and having a tackiness or an adhesive property when heated on the other surface. Phototransfer recording device Heat seal adhesive electrophotographic transfer recording paper with paper passing properties. 2. The heat-sealing adhesive electrophotographic transfer recording paper according to claim 1, wherein the heat-sealing layer has an average particle size of 1%.
A heat seal adhesive electrophotographic transfer recording sheet having excellent paper-passing properties, wherein the electrophotographic transfer recording apparatus contains a pigment having a size of from 25 to 25 μm. 3. A heat treatment in which one side of a support has an electrophotographic toner fixing property, and the other side is provided with a heat-sealing layer which exhibits neither tackiness nor adhesion in a normal state and exhibits tackiness or adhesiveness when heated. A heat-sealable electrophotographic transfer recording sheet with a protective sheet, wherein a protective sheet is releasably adhered to the heat-seal layer of the seal-adhesive electrophotographic transfer recording sheet. 4. A laminated recording paper, wherein the heat-sealing adhesive electrophotographic transfer recording paper according to claim 1 and high quality paper are adhered by heating. 5. A laminated postcard, wherein the high-quality paper according to claim 4 is an official postcard. 6. An electronic device comprising a support having an electrophotographic toner-fixing property on one surface and a heat-sealing layer exhibiting tackiness or adhesiveness when heated and exhibiting tackiness or adhesiveness in a normal state on the other surface. 2. A heat transfer adhesive, wherein the toner is transferred to the heat seal adhesive electrophotographic transfer recording paper according to the above-mentioned electrophotographic transfer recording paper according to the above-mentioned electrophotographic transfer recording method, and then superposed on high quality paper in contact with the heat seal layer. A process for fixing the toner for electrophotographic transfer recording by passing it through a heating device for fixing the toner, and simultaneously laminating the high-quality paper. 7. An electromagnetic wave heating method in which the adhesive surface of the electrophotographic transfer recording paper having heat-sealing adhesiveness according to claim 1 and the back surface of the postcard are overlapped to form one set, and one or more sets are overlapped. A method for producing a laminated recording paper, comprising heating and bonding the electrophotographic transfer recording paper and the postcard by means of a machine. 8. An electrophotographic transfer recording sheet having heat-seal adhesive property according to claim 1, wherein an adhesive surface of the electrophotographic transfer recording sheet is overlapped with a back surface of a postcard, and the flat surface of the electrophotographic transfer recording sheet faces a toner fixing surface of the electrophotographic transfer recording sheet. A polyolefin resin sheet or Teflon is overlapped as a toner barrier sheet to form a set, and one or more sets are overlapped and heated by an electromagnetic wave heater to bond and integrate the electrophotographic transfer recording paper and the postcard. A method for producing a laminated recording paper.