JPH1142898A - Ink jet recording transfer medium and manufacture of image transferred material using the same - Google Patents

Abstract

PROBLEM TO BE SOLVED: To transfer a transfer layer of a transfer medium to a woven fabric or the like under a good state without generating a problem on transfer inferiority even by use of a domestic iron or the like by a method wherein a release layer and a transfer layer are provided on a carrier, and a layer having water repellency and gliding properties is provided on a rear surface. SOLUTION: In an ink jet recording medium, a release layer and a transfer layer are provided on a carrier, and a layer having water repellency and gliding properties (a water repellent gliding layer) is provided to a rear surface. Thereby, a problem on curling of a transfer medium caused by moisture change of environment which has been generated in the case where an image is formed with an ink jet recording method, especially generated in the case where the carrier and paper base material are used, is not be generated. Further, even in the case where a domestic iron or the like wherein a heating surface is narrower than total area of the transfer layer, temperature segregation also exists on the heating surface, and operation properties are deteriorated since accurate temperature adjustment and temperature control can not be executed, is used to execute a transfer process, smooth ironing at an optimum temperature can be executed.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

[0001] 1. Field of the Invention [0002] The present invention relates to a transfer medium used for forming an image on a transfer material such as a cloth or a film by transfer. More specifically, the present invention relates to a transfer medium for ink jet recording in which an ink jet recording method is used when an image is formed on a transfer layer, and a method for producing an image transfer using the same.

[0002]

2. Description of the Related Art Ink jet recording methods include various ink discharge methods, for example, an electrostatic suction method, a method of applying mechanical vibration or displacement to ink using a piezoelectric element, and heating and bubbling ink to reduce the pressure. Depending on the method used, small droplets of ink are generated and fly, and part or all of them are attached to a recording material such as paper to record images and characters, and noise is generated. Attention has been paid to a recording system capable of performing high-speed printing and color printing.

[0003] In recent years, with the spread of ink jet printers that can easily perform full-color printing,
Utilizing this, it has been required to perform color printing on various media. In response to such demands, the printing technology using the transfer method is notable for any form on the media side, that is, it can perform image formation even on media that cannot be directly printed by a printer. Have been.

Several transfer media using the ink jet recording method have been proposed (for example, Japanese Patent Application Laid-Open Nos. 8-207426 and 8-207450).
No. 5,501,902).
In the transfer method using the conventional transfer medium as described above, first, a desired image is formed by an inkjet method on a transfer layer formed on a support of the transfer medium, and then the transfer layer on which the image is formed is formed. The transfer layer is transferred to the surface of the transfer material by heating from the back surface (hereinafter simply referred to as the back surface) of the support opposite to the transfer layer side in this state. , Forming an image. Such a transfer method is performed not only industrially but also in general households using a general-purpose household iron in many cases.

Many of the transfer media for ink jet recording used as described above have a structure in which a paper base is used as a support, and a transfer layer is formed on one surface of the transfer medium via a release layer. ing. In such a transfer medium in which the support is made of a paper base material and the transfer layer is formed only on one surface thereof, the porous paper base material absorbs or releases moisture due to a change in ambient humidity. The phenomenon that the transfer medium warps (curls) when wet is likely to occur. When the transfer medium is curled, the transportability in the printer is deteriorated, paper feeding failure or double feeding occurs, and ink jet recording is not properly performed on the transfer layer. Such a problem is solved by forming a film having a water vapor barrier property on the back surface of the paper base material, and it becomes possible to form a beautiful image on the transfer layer by the inkjet recording method.

However, as described above, when an image is formed on a cloth or the like using an ink-jet recording transfer medium, a transfer step of heating and transferring the back surface of a paper base as a support after image formation is performed. Is essential, and a problem remains in the formation of a film having the above-mentioned water vapor barrier property. In particular, when the transfer step of the transfer layer to the material to be transferred is performed industrially, there is not much problem because the control of the heating temperature for transfer and the adjustment of the heating area can be easily performed. When the transfer process is performed using a household iron, there are the following problems. That is, usually, the heating surface of the household iron is smaller than the entire area of the transfer layer, and the heating surface also has temperature segregation, and further, it is not configured so that the user can accurately adjust and control the temperature. Therefore, when transferring the transfer layer on a cloth or the like using a household iron, if you try to make sure that the transfer layer is evenly heated uniformly, move the heating surface of the iron up, down, left, and right Need to be At this time, if the above-mentioned steam barrier layer is provided on the back surface of the paper base material, the material for forming the steam barrier layer is fused to the heating surface of the iron, and the iron cannot be applied smoothly. Problem arises. On the other hand, if the iron is used at a low temperature in order to avoid the problem of fusion, a problem of poor transfer due to insufficient heating occurs. In this case, when the cloth having the incomplete transfer layer is washed or other friction is applied, a part or the whole of the transfer layer is easily peeled off, and a large number of cracks or the like are generated on the transfer layer. For example, the quality is deteriorated.

[0007]

SUMMARY OF THE INVENTION Accordingly, an object of the present invention is not only to prevent the transfer medium from being curled due to a change in the humidity of the environment, to solve the problem of poor conveyance in the ink jet recording apparatus, but also to reduce the problem in general household use. Even when using a household iron or the like, when the transfer step is performed, smooth ironing at the optimum temperature is possible, and the transfer layer of the transfer medium is in good condition without causing a problem of poor transfer. An object of the present invention is to provide a transfer medium for ink jet recording which can be transferred to a recording medium and a method for producing an image transfer product using the transfer medium.

[0008]

The above object is achieved by the present invention described below. That is, the present invention provides a transfer medium for inkjet recording, wherein a release layer and a transfer layer are provided on a support, and a layer having water repellency and lubricity is provided on the back of the support. This is a method for producing an image transfer using the same.

According to the present invention, as a result of the curl of the transfer medium being effectively prevented, not only a satisfactory image formation can be performed without causing the problem of conveyance failure in the ink jet recording process, but also In a general household, even when the transfer process is performed using a household iron or the like, the transfer layer of the transfer medium can be transferred to a transfer target such as a cloth in a good state without causing a problem of poor transfer. it can.

[0010]

Next, the present invention will be described in more detail with reference to preferred embodiments. The cross section of the transfer medium for ink jet recording of the present invention is schematically shown in FIG. 1. A release layer and a transfer layer are provided on a support, and the back surface of the support has water repellency and lubricity. A layer (hereinafter, referred to as a water-repellent slip layer) is provided. In the transfer medium of the present invention having such a configuration, after a desired image is formed on a transfer layer by an ink jet recording method, a material to be transferred such as a cloth is superimposed on the transfer layer surface, and as shown in FIG. For example, it is used when a transfer image is transferred to a fabric by heating and pressing using a household iron or the like, and a transfer image is formed on a recording material such as a fabric in which direct recording is difficult. At this time, in the transfer medium for ink jet recording of the present invention, since a layer having water repellency is provided on the back surface of the support, this has occurred when an image is formed by the ink jet recording method. There is no problem of curling of the transfer medium caused by a change in the humidity of the environment, which has occurred when a paper substrate is used. In addition, there is a home iron or the like in which the heating surface is narrower than the entire area of the transfer layer, and the heating surface has temperature segregation, and the user cannot perform accurate temperature control or temperature control. Even when the transfer step is performed, smooth ironing at the optimum temperature is possible, and as a result, uniform heating can be performed on the entire surface of the transfer layer, which may cause a problem of transfer failure due to poor heating. Absent. 1 and 2 show an example in which a transparent coating layer is provided between the release layer and the transfer layer. However, in the present invention, it is not essential to provide such a coating layer. Absent. However, it is more preferable to provide such a coating layer, since this coating layer functions as a protective layer for a transferred image after transfer.

The transfer medium for ink jet recording of the present invention is characterized in that a layer having water repellency and lubricity is provided on the back of the support of the transfer medium. Since heat is applied in the transfer step, a heat-resistant material is preferably used as the material for forming the water-repellent slip layer. Preferred methods for forming the water-repellent slip layer include, for example, the following methods. (1) A method of forming a water-repellent lubricating layer from a heat-resistant resin containing a lubricant or a release agent. (2) A method in which the water-repellent lubricating layer is formed from a silicone resin, a fluorine resin, or a copolymer having a segment of these resins. However, the present invention is not limited to these methods.For example, a method using release paper that has already been release-treated on both sides as a support, or a film made of a water-repellent slip material on the back of the support. A method of forming a water-repellent lubricating layer by laminating may be used.

When the above-mentioned method (1) is used, specifically, for example, an acrylic resin such as polymethyl methacrylate, an acetal resin, a polycarbonate resin, an aromatic polyester resin, an aromatic polyamide resin, In a resin having relatively excellent heat resistance such as a polyimide resin, a coating liquid containing a composition containing a lubricant or a release agent is prepared, and the coating liquid is applied to the back surface of the support and formed into a film. Is preferred. Examples of the lubricant or release agent used in this case include aliphatic hydrocarbon compounds, higher aliphatic alcohols, fatty acid amide compounds, metal soaps of higher fatty acids, higher fatty acid esters, waxes, plasticizers, Surfactants, silicone oils, fluororesin-based oils and the like can be mentioned. Further, it is preferable to use these lubricants or release agents in the range of 5 to 100 parts by weight per 100 parts by weight of the above-mentioned heat-resistant resin.

The method (2) mentioned above is a method of forming a water-repellent lubricating layer using a resin having water repellency and lubricity per se. Specifically, for example, silicone resin, A film is formed on the back surface of the support by using a material such as fluororesin or silicone or a block copolymer of a fluororesin segment and another resin segment to form a water-repellent lubricating layer. Of course, when forming the water-repellent lubricating layer, an appropriate amount of the above-mentioned lubricant or release agent may be added to these resins.

When the water-repellent lubricating layer is formed on the back surface of the support by the above-mentioned method, the transfer temperature of the transfer layer is usually adjusted by easily coating the transfer layer using a household iron. It is designed to be about 100 to 250 ° C. so that it can be performed.
It is preferable to select and use a heat-resistant resin having a melting point or softening point higher than the transfer temperature.

To briefly describe the function of smoothing the sliding of the iron, the water-repellent lubricating layer formed by the method (1) is formed of a heat-resistant resin containing a lubricant or a release agent. Even when the back surface of the support is heated with an iron or the like in the transfer step, the heat-resistant resin does not melt, so that the water-repellent slip layer does not fuse to the heated surface of the iron. On the other hand, the lubricant or the release agent having a low melting point dispersed in the heat-resistant resin is melted and exudes to the surface when heated by the iron, so that the slip of the iron is improved. On the other hand, in the case of the water-repellent lubricating layer formed by the method (2) and made of a silicone resin, a fluororesin or a copolymer having these resin segments, the resin itself has heat resistance. In addition, since it has water repellency and lubricity, slippage is improved without causing fusion to the iron.

As a method for forming the water-repellent slip layer on the back surface of the support, specifically, the above-mentioned materials are dissolved or dispersed in an appropriate solvent to prepare a coating solution, and the coating solution is prepared. On the back of the support to form a film, a method of forming a film from these materials and laminating the film on the support, a method of extrusion lamination, and the like. As a coating method,
Roll coater method, blade coater method, air knife coater method, gate roll coater method, bar coater method,
Size press method, Simsizer method, Spray coat method,
A gravure coating method, a curtain coater method and the like can be mentioned. The water-repellent lubricating layer formed as described above is preferably formed so that the coating amount during drying is about 0.1 to ² g / m ² . In the present invention, it is described as a layer having water repellency and lubricity. The water repellent lubricating layer is preferably in a state of being formed as a uniform layer. It is not limited to this, and a substance having water repellency and lubricity may be distributed on the back surface of the support as long as curl can be prevented and lubricity can be imparted to the back surface of the support.

In a preferred embodiment of the present invention, the water-repellent lubricating layer is formed by a so-called coating liquid containing a so-called temperature-indicating material, in which the visual sensation changes depending on the temperature. By forming the water-repellent lubricating layer using a coating liquid containing a temperature indicating material, it becomes possible to visually identify the area of the water-repellent lubricating layer heated by the iron. The heating of the entire surface of the transfer layer and the uniform heating can be performed more reliably. The temperature indicating material itself is a known material, and any of an irreversible temperature indicating material, a quasi-irreversible temperature indicating material, and a reversible temperature indicating material can be used. Among these,
Particularly, in order to clearly grasp the transfer state, it is preferable to use an irreversible temperature indicating material.

As the irreversible temperature indicating material, a thermal decomposition method,
There are various temperature indicating materials whose visual sensation clearly changes due to physical or chemical changes, such as a sublimation development system, a chemical reaction system, a melt development system, an electron transfer system, and a pH change system. As the temperature indicating material that can be used in the present invention, specifically, for example, cobalt, nickel, iron, copper, chromium,
A salt compound such as manganese, a mixture of two kinds of dyes having different hues, one of which is a dye mixture that sublimates at a specific temperature, a mixture of bismuth oxide and sulfide, a material that changes in visual perception by melting, Dispersion of a leuco dye and a phenol compound (thermosensitive coloring dye), a mixture of an organic acid and phenolphthalein, and the like can be given. The above examples are preferred examples, and other conventionally known dyes and pigments can be used, and various dyes whose luminosity changes at a temperature somewhat higher than the transfer temperature can also be used.

In the transfer medium for ink jet recording of the present invention having a water-repellent slipping layer on the back side of the above-mentioned support, the support, release layer and transfer layer of the other structure may be of specific shapes or materials. The configuration is not particularly limited, and any conventionally known configuration may be used. However, the present invention is particularly effective when a paper base is used as the support. That is, when a plastic film or a synthetic backing sheet is used as a transfer medium support, there is no problem of curling of the transfer medium caused by a change in environmental humidity, but there is a problem that the base material is fused to the iron during heating. Remains. On the other hand, when a paper base material having no fusion problem is used, the above-described curl problem occurs, so that it is necessary to provide a water vapor barrier layer. Problem arises.

Hereinafter, other configurations of the transfer medium for ink jet recording of the present invention will be described. In the present invention, for example, as in JP-A-8-207426, the transfer layer of the transfer medium may be a transfer medium composed of a thermoplastic resin, a crystalline plasticizer and a tackifier. As described in Japanese Patent Application Laid-Open Publication No. H10-209, the transfer layer may be configured so as to be capable of inkjet recording using a granular thermoplastic polymer resin, porous inorganic fine particles, and a binder. Further, as described in U.S. Pat. No. 5,501,902, in addition to the above configuration, a configuration in which a cationic resin, an ink viscosity modifier, and the like are added to the transfer layer may be used. In the invention, in particular, the transfer layer is formed of a water-insoluble thermoplastic resin fine particle and a water-insoluble thermoplastic resin binder, more preferably, these resins, and a plasticizer of at least one of these resins, or an inorganic resin. It is preferable to use a mode composed of fine particles or a cationic resin and configured to be porous. Hereinafter, each material for forming a preferable transfer layer of the transfer medium for inkjet recording of the present invention will be specifically described.

In the present invention, as the water-insoluble thermoplastic resin used for forming the transfer layer, porous thermoplastic resin fine particles are preferably used. That is, such thermoplastic resin fine particles are contained in the transfer layer, and before the transfer image is formed, these thermoplastic resin fine particles are not formed into a film, but remain in the form of fine particles. In the transfer layer, the transfer layer becomes a porous layer, and when the ink is supplied to the transfer layer by the ink jet recording method, the ink can be favorably absorbed and retained in the gaps between the fine particles. In particular, in this case, if porous thermoplastic resin fine particles are used, the ink is absorbed in the voids of the fine particles, and the ink absorbency of the transfer layer is further improved. Further, when the image is adhered to the transfer material and the image is transferred by heating and pressing from the support side of the transfer material, the thermoplastic resin particles in the transfer layer are melted and transferred to the transfer material. Since these fine particles are also formed into a film, the color material can be fixed in a good condition on a material to be transferred such as a cloth or a film. The amount of the thermoplastic fine particles used is about 30% by weight or more based on the entire constituent material of the transfer layer.
It is preferred to be in the range of 90% by weight.

In the present invention, as the fine particle material of the thermoplastic resin which is preferably used as the material for forming the transfer layer, any fine particle made of a water-insoluble thermoplastic resin can be used. Specifically, for example, polyethylene, polypropylene, polyvinyl acetate, water-insoluble polyvinyl alcohol, polyvinyl acetal, copolymer of poly (meth) acrylic acid, poly (meth) acrylate, polyacrylic acid derivative, Polyacrylamide, polyether, polyester, polycarbonate, cellulosic resin, polyacrylonitrile, polyimide, polyamide (nylon), polyvinyl chloride, polyvinylidene chloride, polystyrene, thiochol, polysulfone, polyurethane, polystyrene, and other resins And copolymers of monomers.
Among them, polyethylene, polypropylene, poly (meth)
Acrylic acid copolymer, poly (meth) acrylate, polyvinyl acetate, polyvinyl chloride, polyurethane,
Polyamide (nylon), copolymers of these monomers, and the like are more preferably used.

The particle diameter of the fine particles of the thermoplastic resin used in the present invention may be set to a value of 0.1 from the viewpoints of ink absorption and image clarity.
It is preferably in the range of 05 μm to 100 μm,
More preferably, 0.2 to 50 μm, still more preferably 5
Those having a size in a range of from 20 μm to 20 μm are preferable. Particle size 0.05
When resin particles smaller than μm are used, voids between the particles become too small when the transfer layer is formed,
Sufficient ink absorbency cannot be obtained. On the other hand, if the particles are too small, the smoothness of the surface of the transfer layer is increased and it is difficult to penetrate between the fibers of the fabric, so that the transferred image is easily formed as a uniform continuous film on the surface of the fabric, and the transferred image is easily peeled. When the fabric is stretched or stretched, the transfer layer is cracked and the underlying fibers are visible, and it is difficult to obtain a good transfer image. On the other hand, when thermoplastic resin fine particles having a particle size larger than 100 μm are used, the resolution of the image is reduced, and it is difficult to obtain a clear image.

As described above, in the present invention, in particular, when porous thermoplastic resin fine particles are used in the transfer layer, the ink absorbency of the transfer layer is further improved, and the thinner the layer, the more the thickness. The ink can be absorbed, and a thin transfer layer capable of forming a clear image can be obtained. Furthermore, when the transfer layer thickness is reduced, not only the image transfer becomes easier, but also when the image is transferred to a cloth or the like, the texture of the image after the transfer is softened. A transcript is obtained. For example, if thermoplastic resin fine particles composed of a copolymer of a monomer of nylon 6 and a monomer of nylon 12 are used as a material for forming the transfer layer, the color development of the dye becomes good and a clearer image can be obtained.

The fine particles of the thermoplastic resin used in the present invention are sufficiently formed with a household iron or the like so that the image can be easily transferred at home or the like after forming an image with a general-purpose ink jet printer. It is preferable to use a material that can be melted and transferred onto a fabric. In this respect, the melting point of the thermoplastic resin particles used in the present invention is preferably in the range of 70 ° C to 200 ° C, more preferably in the range of 80 ° C to 180 ° C, and still more preferably in the range of 100 ° C to 150 ° C. A range is preferred. That is, if the melting point is lower than 70 ° C., the fine particles may be formed into a continuous film depending on the conditions at the time of distribution or storage. Further, since the drying temperature after coating must be lower than the melting point of the fine particles, it is preferable to use a resin having a temperature of 70 ° C. or higher from the viewpoint of production efficiency. On the other hand, the melting point is 200
When the temperature is higher than ° C, high energy is required for transfer, and it is difficult to easily form a transfer image on a transfer material such as a cloth or a film.

Further, in the present invention, it is preferable to use thermoplastic resin fine particles having a low hot melt viscosity in consideration of the adhesion of the transfer layer to the cloth. When a resin having a high heat-melt viscosity is used, the adhesion between the transfer layer and the fabric is deteriorated, and the transfer layer formed as a film is easily peeled off. On the other hand, when a material having a low heat-melt viscosity is used, the transfer layer easily enters between the fibers of the fabric, and even if the fabric expands and contracts, the color of the underlying fiber is not seen, and a good transfer image is obtained. .

In the present invention, the thermoplastic resin binder used as a material for forming the transfer layer together with the above-mentioned thermoplastic resin fine particles is used to form the coating film by binding the above-mentioned thermoplastic resin fine particles together to form the transfer layer. In addition, at the time of transfer, it is added for the purpose of bonding the transfer layer on which the image has been formed to the cloth. In the present invention, a conventionally known water-insoluble thermoplastic resin can also be used as the thermoplastic resin binder. Specifically, the same thermoplastic resin as those listed above as the material for the thermoplastic resin fine particles can be used as the binder. The amount of the thermoplastic resin binder used as described above is about 1 to the entire constituent material of the transfer layer.
A range from 0% to 70% by weight is preferred.

In the present invention, the weight ratio of the fine particles of the thermoplastic resin forming the transfer layer to the binder of the thermoplastic resin is defined as:
It is preferably in the range of 1/2 to 50/1, more preferably in the range of 1/2 to 20/1, and still more preferably
The range is 1/2 to 15/1. That is, if the ratio of the fine particles of the thermoplastic resin is too large, adhesion between the fine particles or between the fine particles and the release layer becomes insufficient, so that a transfer layer having sufficient strength cannot be formed before the transfer. On the other hand, if the proportion of the thermoplastic resin particles is too small, it is difficult to obtain a transfer layer capable of forming an image having excellent ink absorbency and image clarity.

When the transfer layer of the transfer medium for ink jet recording of the present invention is formed of only the two kinds of materials described above, there is a problem when the melting point or softening point of the fine thermoplastic resin particles or the thermoplastic resin binder is relatively low. However, when these melting points or softening points are high, the transfer of the transfer layer may be insufficient. Therefore, in the present invention,
As a material for forming the transfer layer, it is preferable to add a plasticizer of the thermoplastic resin fine particles or a plasticizer of the thermoplastic resin binder.

The addition of these plasticizers can lower the melt viscosity of the transfer layer at the time of transfer of the formed image, that is, at the time of heating, and improve the transferability by further improving the adhesion to the fabric. it can. In addition, the use of a plasticizer can impart strength and flexibility to the transferred image,
It is possible to form a transferred image having an excellent texture on a recording material such as a cloth or a film. The amount of the plasticizer as described above is about 1% by weight to the entire constituent material of the transfer layer.
A range of 20% by weight is preferred.

Preferred plasticizers used at this time are, for example, diethyl phthalate, dioctyl phthalate,
Dimethyl phthalate, phthalic acid esters such as dibutyl phthalate, tributyl phosphate, phosphoric acid esters such as triphenyl phosphate, octyl adipate, adipates such as isononyl adipate, dibutyl sebacate, sebacic esters such as dioctyl sebacate, Acetyltributyl citrate, acetyltriethyl citrate, dibutyl maleate, diethylhexyl maleate, dibutyl fumarate, trimellitic acid plasticizer, polyester plasticizer, epoxy plasticizer, stearin plasticizer, chloride paraffin, toluene sulfone Amides and derivatives thereof, p-
Oxybenzoic acid-2-ethylhexyl ester and the like can be mentioned.

Further, when transferring to a porous material to be transferred, such as a cloth, using the transfer medium for ink jet recording of the present invention, it is preferable that inorganic particles are further added to the transfer layer. Is preferred. When the transfer layer on which an image is formed is transferred to a cloth or the like by adding the inorganic particles,
When the transfer layer excessively penetrates into the fabric, the color material sinks and the image density decreases, and the same factor is used to wash the fabric having the transferred image, the fabric surface becomes fluffy and the image density decreases due to the same factor. Can be prevented in advance. In other words, by adding inorganic particles having no melting property to heat in the transfer layer, at the time of transfer, it is possible to prevent the thermoplastic resin forming the transfer layer from excessively penetrating the cloth, A film is formed on the surface of the fabric, and a clear image with high density can be obtained. Further, by doing so, the fibers are adhered on the surface of the cloth, and the cloth and the like having a transferred image having high robustness without fluffing even by washing are provided. The use amount of the inorganic particles as described above is preferably in the range of about 0.1% by weight to 20% by weight based on the entire constituent material of the transfer layer.

As the inorganic particles used in the present invention, any porous and ink-absorbing particles may be used. Specifically, silica, aluminum silicate, magnesium silicate,
Examples include hydrotalcite, calcium carbonate, titanium oxide, clay, talc, (basic) magnesium carbonate, and the like.

Of these, it is preferable to use a material having a particularly high dyeing property, since the dye is fixed on the surface of the fabric. At this time, if a material having a higher porosity is used,
The ink absorbency of the transfer layer is also increased, and a clearer image can be obtained. As the particle diameter of the inorganic particles used in the present invention, the particle diameter of the thermoplastic resin particles described above,
It is preferable to use one as close as possible. This is because the addition of particles having different particle sizes causes the smaller particles to be filled between the larger particles, resulting in a decrease in the porosity in the transfer layer.

Further, in the present invention, a cationic resin may be added to the material for forming the transfer layer. By the addition of the cationic resin, it is possible to obtain a transfer image having higher robustness. That is, the coloring material generally used in the ink jet printer is an anionic dye, and the coloring material is taken in together when the fine particles of the thermoplastic resin and the binder are melted by heat at the time of transfer. Is fixed on a material to be transferred such as a cloth or a film. However, the coating thus formed may not be completely uniform, and in such a case, for example, when the fabric is immersed in water during washing or the like, the dye exudes. On the other hand, if a cationic resin is added to the transfer layer, the cationic resin reacts with the dye to insolubilize the dye, so that elution of the dye can be prevented. The amount of the cationic resin as described above is preferably in the range of about 1% by weight to 20% by weight in the entire transfer layer.

The cationic resin preferably used in this case includes, for example, cationized modified products of resins such as polyvinyl alcohol, hydroxyethyl cellulose and polyvinyl pyrrolidone, allylamine, diallylamine, and the like.
Amine monomers such as allyl sulfone, dimethyl allyl sulfone, diallyl dimethyl ammonium chloride,
Dimethylaminoethyl (meth) acrylate, diethylaminoethyl (meth) acrylate, methylethylaminoethyl (meth) acrylate, dimethylaminostyrene, diethylaminostyrene, methylethylaminostyrene, N-methylacrylamide, N-dimethylacrylamide, N, N- Dimethylaminoethyl methacrylamide, and its quaternized compounds, etc., such as polymers and copolymers of acrylic monomers having a tertiary amine or quaternary ammonium group in the side chain, dicyanamide, etc. Examples thereof include resins having an amine or a quaternary ammonium base.

In the present invention, the thickness of the transfer layer formed of the above-mentioned material is preferably 10 to 1
The range is 50 μm, more preferably 30 to 120 μm, and still more preferably 40 to 100 μm. If the film thickness is too large, a transferred image having flexibility cannot be obtained when the film is transferred to a transfer material such as a cloth. On the other hand, if the film thickness is too thin, the transferred image formed is inferior in image quality or poor in robustness, which is not preferable.

In the transfer layer of the thermal transfer medium for ink jet recording of the present invention, in order to improve the permeability of the ink,
Surfactants can also be included. That is, when a surfactant is added to the transfer layer, the wettability of the particle surface is improved, and the permeability of the aqueous ink is increased. As the surfactant used in the present invention, a commonly used nonionic surfactant can be used, and more specifically,
Surfactants such as ether type, ester type, ether / ester type, and nitrogen-containing type can be used.

Further, the transfer medium for ink jet recording of the present invention has a release layer together with the transfer layer formed as described above. Due to the presence of the release layer, a transfer layer having excellent characteristics can be obtained. It can be easily transferred to a recording material such as a fabric or a film. For example, when the support is peeled and removed after transfer by heating and pressing on the fabric, it is possible to prevent the transfer layer from peeling off from the fabric or prevent a part of the transfer layer from remaining on the support and damaging the image. Is done. When the transfer layer is transferred to a recording material such as a cloth or a film, a material for forming a release layer formed on the support in order to enhance the releasability between the transfer layer and the support is, for example, heat. A fusible material is preferred, and specific examples include the following.
For example, carnauba wax, paraffin wax, microcrystalline wax, waxes such as caster wax, stearic acid, palmitic acid, lauric acid,
Aluminum stearate, lead stearate, barium stearate, zinc stearate, zinc balmitate,
Methylhydroxystearate, glycerol monohydroxystearate, higher fatty acids such as glycerol monohydroxystearate or derivatives thereof such as metal salts and esters, polyamide resins, petroleum resins, rosin derivatives, cumarone-indene resins, terpene resins, Novolak resins, styrene resins, olefin resins such as polyethylene, polypropylene, polybutene, and oxidized polyolefin, and vinyl ether resins. or,
In addition, silicone resin, fluorosilicone resin,
A fluoroolefin vinyl ether terpolymer, a perfluoroepoxy resin, a thermosetting acrylic resin having a perfluoroalkyl group in a side chain, a vinylidene fluoride-based curable resin, and the like are also used.

Further, in another embodiment of the transfer medium for ink jet recording of the present invention, as shown in FIG. 1 or FIG. 2, a coating layer is provided between the transfer layer and the release layer described above. The transfer layer may be provided in two layers. Advantages of providing this coating layer include the following two points. First, the formation of the transfer layer on the release layer becomes easier. In the ink jet recording transfer medium of the present invention, as described above, it is preferable to provide a porous transfer layer in order to improve the ink absorbency, but a layer having low adhesion such as a release layer When a porous layer is provided on the transfer layer, the adhesion between the layers is poor, and the transfer layer may peel off during handling. Therefore, if the transfer layer has a two-layer structure, and a coating layer made of a material different from the resin fine particles of the transfer layer is provided on the release layer side of the transfer layer, the adhesion between the layers is improved, and Such a problem is less likely to occur.

Second, if a coating layer is provided between the above-mentioned transfer layer and the release layer, the washing fastness transferred onto a cloth or the like can be improved. That is, when the transfer layer has a two-layer structure, the film layer becomes the outermost layer after the transfer and covers the image surface, so that the color material is adhered to the fabric in a state where the color material is more hidden in the transfer layer. Therefore, the robustness becomes higher.

As the material for forming the film layer, it is preferable to use the same type of thermoplastic resin binder used for the material for forming the transfer layer described above. That is, by using the same material for forming these two layers,
The adhesion between the two layers can be increased, the robustness can be increased, and the difference in the refractive index between the two layers becomes smaller, so that the transfer layer after the transfer becomes transparent and a clear image can be obtained. Becomes The thickness of the coating layer is thinner than that of the transfer layer.
The thickness is preferably about 50 μm.

In the transfer medium for ink jet recording of the present invention having the above-described structure, an image is formed on a transfer layer by an ink jet recording method, and the formed image is directly image-formed by an ink jet recording method by means such as heating. Is transferred to a transfer-receiving material (recording material) such as a cloth or a film, on which it is difficult to form, and is used for the purpose of forming an image on a cloth or the like. A commercially available general-purpose printer can be used as it is as the inkjet printer. Further, the color material of the ink to be used is not particularly limited, and a conventionally known anionic color material can be used, and it is not particularly necessary to change the color material according to the material of the fabric. Examples of the material on which an image is formed using the transfer medium for inkjet recording of the present invention include a cloth and a film, and a cloth is particularly preferably used. At that time, the material constituting the fabric is not particularly limited, and examples thereof include cotton, hemp, silk, wool, rayon, polyester, nylon, acrylic, acetate, triacetate, polyurethane, and the like, and fibers of a blend thereof. . In addition, this fabric can be used in any form such as a woven fabric, a knitted fabric, and a nonwoven fabric.

In the method for producing an image transfer product of the present invention, the step of forming a desired image on the transfer layer of the transfer medium by the ink jet method as described above, and superposing the surface of the transfer layer on which the image has been formed on the surface of the material to be transferred. And a transfer method comprising a step of transferring the transfer layer to the surface of the material to be transferred by heating from the back surface of the transfer medium, and obtaining an image transfer product by these steps. The method of the present invention is particularly effective when a household iron is used as a heating means during transfer.

[0045]

EXAMPLES Next, the present invention will be described more specifically with reference to examples and reference examples, but the present invention is not limited to these examples. Example 1 Release paper having one side subjected to release processing (part number ST-60)
OKT, manufactured by Lintec Co., Ltd.), and the following coating solution was dried on the entire back surface (hereinafter referred to as a side having no release layer) of 1 g / m ² by a bar coater method, and 80 ° C. in a drying furnace.
For 1 minute to form a water-repellent lubricating layer. (Composition of coating liquid for water-repellent lubricating layer) Polydimethylsiloxane (TPR-6711, manufactured by Toshiba Silicone Co., Ltd., solid content 30% by weight) 333 parts by weight (solid content 100 parts by weight) Catalyst (CM670, Toshiba Silicone Co., Ltd.) Trace ・ Toluene 200 parts by weight

Next, the following coating liquid was dried on the surface of the release paper side (the side opposite to the water-repellent slip layer) of the release paper on which the water-repellent slip layer obtained above was formed. Coating is performed by a bar coater method so as to have a thickness of 50 μm.
After drying for a minute, a transfer layer was formed to prepare a transfer medium of this example. (Transfer layer coating liquid composition)-Porous nylon particles (Orgasol 3501EXD NAT, manufactured by Elf at Chem Co., Ltd., particle size: 10 m) 55 parts by weight-Ethylene-acrylic acid emulsion (Hitech E-8778, Toho Chemical Co., Ltd.) 180 parts by weight (solids content: 45 parts by weight) N-ethyl-o, p-toluenesulfonamide (Topsizer No. 3, manufactured by Fuji Amido Chemical Co., Ltd., solids content) 33 parts by weight (solids content 10 parts by weight) 2 parts by weight of silica particles (Mizukasil P-78A, manufactured by Mizusawa Chemical Industry Co., Ltd., particle size 3 μm) ・ Cationic resin (EL polymer NWS-16, new 23 parts by weight (solids content 8 parts by weight, manufactured by Nakamura Chemical Co., Ltd.) 23 parts by weight (solids content 8 parts by weight) Fluorosurfactant (Surflon S-131, Seimi Chemical ( ) Ltd., solid content 30 wt%) 3 parts by weight (solid content 1 part by weight) Isopropyl alcohol 40 parts by weight

Example 2 A water-repellent lubricating layer was formed on the back side of the same release paper as in Example 1 in the same manner as in Example 1. A coating solution having the following composition is coated on the surface of the release layer side (the side opposite to the water-repellent lubricating layer) of the release paper provided with the slipping layer with a bar coater so that the film thickness when dried becomes 20 μm. Coating at 70 ° C. in a drying oven.
After drying for a minute, a film layer was formed. (Composition of coating liquid for coating layer)-Porous nylon particles (Orgasol 3501EXD NAT, manufactured by Elf at Chem Co., Ltd., particle size: 10 m) 0.1 part by weight-Ethylene-acrylic acid emulsion (Hitec E-8778, 400 parts by weight (solids content 100 parts by weight), isopropyl alcohol 5 parts by weight Next, the water-repellent lubricating layer and the coating layer obtained above are formed. A transfer layer was formed on the film layer of the release paper in the same manner as in Example 1 to produce a transfer medium of this example.

Example 3 A coating liquid having the following composition was coated on the back side of the same release paper as in Example 1 by a bar coater method so that the coating amount when dried was 1 g / m ² . The coating was dried at 140 ° C. for 1 minute in a drying oven to form a water-repellent lubricating layer. (Water-repellent lubricating layer coating composition) Silicone (SD7226, manufactured by Toray Dow Corning Silicone, solid content 30% by weight) 33 parts by weight (solid content 10 parts by weight) Catalyst (SRX212, manufactured by Tore Dow Corning Silicone Co., Ltd.) 0.03 parts by weight, toluene 20 parts by weight Next, on the release layer side surface (the side opposite to the water-repellent slip layer) of the release paper on which the water-repellent slip layer obtained above was formed, A transfer layer was provided in the same manner as in Example 1, and a transfer medium of this example was manufactured.

Example 4 A water-repellent lubricating layer was formed on the back side of the same release paper as in Example 1 in the same manner as in Example 3. The coating liquid having the following composition is coated on the release layer side (the side opposite to the water-repellent slip layer) of the release paper provided with the water-repellent slip layer so that the film thickness when dried becomes 20 μm. Coated by bar coater method and dried at 70 ° C in a drying oven.
After drying for 0 minutes, a film layer was formed. (Composition of coating liquid for coating layer)-Porous nylon particles (Orgasol 3501EXD NAT, manufactured by Elf at Chem Co., Ltd., particle size: 10 m) 0.1 part by weight-Ethylene-acrylic acid emulsion (Hitec E-8778, 400 parts by weight (solids content 100 parts by weight), isopropyl alcohol 5 parts by weight Next, the water-repellent lubricating layer and the coating layer obtained above are formed. On the release layer side (the side opposite to the water-repellent slip layer) of the release paper
A transfer layer was provided in the same manner as in Example 2, and a transfer medium of this example was manufactured.

Example 5 A PPC paper having a basis weight of 64 g / m ² was used as a support, and a 20 μm-thick vinyl monofluoride resin was laminated thereon to form a release layer. A water-repellent lubricating layer was formed in the same manner as in Example 3. On the release layer side surface (the side opposite to the water-repellent slip layer) of the release paper having the water-repellent slip layer formed thereon, a paint having the following composition is dried by a bar coater method so as to have a thickness of 40 μm when dried. Coating, 60 ℃ in drying oven
For 10 minutes to form a transfer layer, thereby producing a transfer medium of this example. (Composition of transfer layer coating liquid)-Ethylene-vinyl acetate copolymer emulsion (Chemipearl V-300, manufactured by Mitsui Petrochemical Co., Ltd., solid content 40% by weight, particle size 6 m) 250 parts by weight (solid content 100% by weight) Parts) ・ Polyvinyl alcohol (trade name: PVA-217, manufactured by Kuraray Co., Ltd., 20% by weight aqueous solution) 50 parts by weight (solid content: 10 parts by weight)

Example 6 In the same manner as in Example 5, a PPC sheet was used as a support, a release layer was provided thereon, and a water-repellent slip layer was formed on the entire back surface of the release layer in the same manner as in Example 3. did. On the surface of the release layer side of the release paper provided with this water repellent slip layer (the side opposite to the water repellent slip layer),
The following coating liquid was applied by a bar coater method so as to have a thickness of 40 μm when dried, and dried at 60 ° C. for 10 minutes in a drying furnace to form a transfer layer, thereby producing a transfer medium of this example. . (Composition of transfer layer coating liquid) Ethylene-vinyl acetate copolymer emulsion (Chemipearl V-300, manufactured by Mitsui Petrochemical Co., Ltd., solid content 40% by weight, particle size 6 μm) 250 parts by weight (solids content 100 parts by weight)・ Polyvinyl alcohol (trade name: PVA-217, manufactured by Kuraray Co., Ltd., 20% by weight aqueous solution) 50 parts by weight (solid content: 10 parts by weight) ・ Polyallylamine hydrochloride (trade name: PAA-HCl-10L, Nitto Boseki) 12 weight parts (solid content: 4.8 weight parts) Benzalkonium chloride (trade name: G50, manufactured by Sanyo Chemical Co., Ltd., solid content: 50 weight%) 6 weight parts Parts (solids content 3 parts by weight)

Example 7 A water-repellent lubricating layer was formed on the back side of the same release paper as in Example 1 in the same manner as in Example 3. A coating having the following composition is applied to the surface of the release layer side (the side opposite to the water-repellent lubricating layer) of the release paper provided with the water-repellent lubricating layer by a bar coater method so as to have a thickness of 50 μm when dried. The resultant was dried in a drying oven at 70 ° C. for 10 minutes to form a transfer layer, thereby producing a transfer medium of this example. (Composition of transfer layer coating liquid) 137.5 parts by weight (solids content 55) of ethylene-vinyl acetate copolymer emulsion (Chemipearl V-300, manufactured by Mitsui Petrochemical Co., Ltd., solid content 40% by weight, particle size 6 μm) Parts by weight) ・ Ethylene-acrylic acid copolymer emulsion (HITEC E-8778, manufactured by Toho Chemical Industry Co., Ltd., solid content 25% by weight) 180 parts by weight (solid content 45 parts by weight) ・ Silica particles (Mizukasil P-78A) 0.6 parts by weight ・ Acrylic cationic resin (EL polymer NWS-16, solid content 35% by weight from Shin-Nakamura Chemical Co., Ltd.) 6.8 parts by weight ( (Solid content: 2.4 parts by weight) ・ Water: 10 parts by weight

Reference Example 1 The same release paper as that used in Example 1 (part number ST-60OK)
T, manufactured by Lintec Co., Ltd.) as a support, a transfer layer was provided on the side where the release layer was provided in the same manner as in Example 1, and the transfer of Reference Example 1 having no water-repellent slip layer was performed. A medium was prepared.

REFERENCE EXAMPLE 2 Release paper having a release treatment on one side (product number ST-60)
OKT, manufactured by Lintec Corporation) as a support.
On the back, low density polyethylene (Petrocene 203,
Tosoh Corporation) was laminated with a thickness of about 5 μm to form a steam barrier layer. A transfer layer was provided on the release layer side surface (the side opposite to the water repellent layer) of the release paper having the water vapor barrier layer formed thereon in the same manner as in Example 1 to produce a transfer medium of Reference Example 2. did.

[Evaluation] The ink jet printer BJC-600 (manufactured by Canon Inc.) was used as a backing medium for the transfer media of Examples 1 to 7 and Reference Examples 1 and 2 produced as described above. Printing was performed in the print film mode, and an image was formed on the transfer layer. The following evaluation was performed using the transfer medium on which this image was formed. (1) Evaluation of transfer operability Each transfer medium on which an image was printed as described above was
Iron TA-FZ2 made by Toshiba Corporation (width 110 mm)
Was used to transfer to a T-shirt (100% cotton), and the transfer operability (iron sliding, etc.) at that time was evaluated according to the following criteria. Table 1 shows the results. ：: The slip of the iron was good, and the transfer was smooth. ×: The slip of the iron is poor, and the operability is poor.

(2) Evaluation of curl of transfer medium Each transfer medium prepared in Examples 1 to 7, Reference Examples 1 and 2 was placed in an environment of high temperature and high humidity (30 ° C./80% RH). The curl amount at the end of the transfer medium when it was inserted was measured. In the measurement, the curl amounts of all four corners of each of the five transfer media were measured, and the average was obtained. Table 1 shows the results.

Table 1: Evaluation results

[0058]

As described above, according to the present invention,
Since the water-repellent layer is formed on the back surface of the transfer medium, curling prevention is effective, and the problem of transportability that occurs at the time of ink jet recording is solved, and good image formation can be performed. In addition, according to the present invention, even when the transfer step is performed in a general household, the back surface of the support has lubricity, so that the operability of a household iron or the like is good and smooth ironing is performed. The transfer layer of the transfer medium can be transferred to a cloth or the like in a good condition. Therefore, according to the present invention, it is possible to easily form a high-quality image excellent in image quality even on a medium on which ink jet recording cannot be directly performed.

[Brief description of the drawings]

FIG. 1 is a schematic sectional view of an example of a transfer medium of the present invention.

FIG. 2 is an illustrative view showing a method for producing an image transfer product using the transfer medium of the present invention.

 ────────────────────────────────────────────────── ─── Continued on front page (72) Inventor Masato Katayama Canon Inc. 3- 30-2 Shimomaruko, Ota-ku, Tokyo

Claims (8)

[Claims] 1. An ink jet recording method comprising: providing a release layer and a transfer layer on a support; and providing a water-repellent slip layer having water repellency and lubricity on the back of the support. Transfer medium. 2. The transfer medium for ink jet recording according to claim 1, wherein the water-repellent lubricating layer is formed from a heat-resistant resin containing a lubricant or a release agent. 3. The transfer medium for ink jet recording according to claim 1, wherein the water-repellent lubricating layer is formed of a silicone resin, a fluorine resin or a copolymer having a segment of these resins. 4. The dry coating amount of the water-repellent lubricating layer is 0.1 to 2 g.
/ Transfer medium for inkjet recording according to any one of claims 1 to 3 m ^2. 5. The transfer layer according to claim 1, wherein the transfer layer has water-insoluble thermoplastic resin fine particles and a water-insoluble thermoplastic resin binder, and is configured to be porous. Item 6. The transfer medium for inkjet recording according to item 1. 6. The transfer medium for ink jet recording according to claim 1, wherein the support comprises a paper substrate. 7. A step of forming a desired image on the transfer layer of the transfer medium for ink-jet recording according to claim 1 by an ink-jet method, wherein the surface of the transfer layer on which the image is formed is covered. A process of superimposing on the surface of the transfer material, heating the back surface of the transfer medium to transfer the transfer layer to the surface of the material to be transferred, and obtaining an image transfer product by these steps; Method. 8. The heating is carried out with a household iron.
3. The method for producing an image transfer product according to item 1.