JPH058564A - Ink ribbon for preparing dry transfer material - Google Patents

Abstract

PURPOSE:To certainly perform re-transfer by providing a pressure-sensitive re-transfer adhesion adjusting layer containing a microcapsule including an adhesive, an ink layer, a pressure-sensitive re-transfer release adjusting layer containing a microcapsule including a release agent and a thermal adhesive layer to a film like ribbon base material. CONSTITUTION:An ink ribbon is formed by successively forming a pressure- sensitive re-transfer adhesion adjusting layer 2 containing a first microcapsule 4 containing and including an adhesive 3 and a colorant 5, an ink layer 6 containing a colorant 7 and a pressure-sensitive adhesive component, a pressure- sensitive re-transfer release adjusting layer 8 containing and including a release agent 9 and a colorant 11 and a thermal adhesive layer 12 on a film like ribbon base material 1. As the adhesive 3, an one-pack type cyanoacrylate instantaneous adhesive or a two-pack type epoxy adhesive and acrylate adhesive is used. By this method, an ink transfer image can be re-transferred to a desired transfer material in an extremely easy and certain manner by external pressure.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to an ink ribbon for producing a dry transfer material, and more particularly, to an ink ribbon having poor wettability or releasability by using a printer, a typewriter, a word processor having a heat-sensitive transfer mechanism. A dry transfer material that enables heat-sensitive transfer and printing even on strong surfaces, and that the ink transfer image obtained by heat-sensitive transfer can be pressure-sensitive retransferred to the desired final transfer target by external pressure. The present invention relates to a manufacturing ink ribbon.

[0002]

2. Description of the Related Art Conventionally, as for the structure of an ink ribbon for producing a dry transfer material, as described in, for example, JP-A-63-128990 and JP-A-63-128991, a film ribbon base material is used. A two-layer structure in which a homogeneous ink layer containing a resin having a pressure-sensitive adhesive property and a dye and a homogeneous layer containing a resin having a heat-sensitive adhesive property are arranged on the above, or JP-A-63-251287. As described in Japanese Patent Publication, on a film-shaped ribbon substrate,
A dry transfer material having either a two-layer structure in which a homogeneous layer containing a resin having a pressure-sensitive adhesive property and a homogeneous ink layer containing a resin having a heat-sensitive adhesive property and a dye are arranged. A manufacturing ink ribbon had been made.

Then, the ribbon cassette accommodating the ink ribbon for producing the dry transfer material is installed in the dry transfer material producing apparatus, and among the many heat generating elements of the thermal head.
By heating only the heating elements corresponding to the characters and figures to be recorded, the ink main component of the dry transfer material manufacturing ink ribbon that corresponds to the desired characters and figures will be retransferred for the dry transfer material. -These are heat-sensitively transferred onto the sheet. As a result, it was possible to manufacture a dry transfer material having a desired ink transfer image such as characters and figures.

[0004]

However, an ink transfer image is formed by thermally transferring the main component of the ink onto the retransfer sheet using the dry transfer material producing ink ribbon prepared as described above. After that, when pressure-sensitive retransfer is performed from the retransfer sheet, there is a problem that the pressure-sensitive retransfer property of the ink transfer image to the final transfer target is strictly inferior.

More specifically, in order to complete the pressure-sensitive retransfer, the surface of the retransfer sheet on which the ink transfer image is formed is brought into close contact with the final transfer object such as paper, plastic, metal or wood. After fixing, it is necessary to continue rubbing for a certain period of time from the surface of the retransfer sheet opposite to the surface on which the ink transfer image is formed. Therefore, if the retransfer sheet is continuously rubbed while it is not sufficiently fixed to the final transferred material, and the retransfer sheet deviates from the final transferred material, it may be crushed or spread.
There is a problem that it is difficult to obtain a good pressure-sensitive retransfer image.

The present invention has been made to solve the above-mentioned problems, and the first object of the invention is to solve the problems.
Is a dry method which makes it possible to transfer the ink transfer image obtained by the heat transfer onto the retransfer sheet by the heat transfer method onto the final transfer object very easily and surely. It is an object to provide an ink ribbon for producing a transfer material.

The second purpose is to significantly improve the cohesive force of the ink transfer image obtained by the heat transfer on the retransfer sheet by the heat transfer method, so that the ink transfer image is finally transferred. An object of the present invention is to provide an ink ribbon for producing a dry transfer material, which enables a pressure-sensitive retransfer in a perfect shape without any scratches or crushing.

Next, a third object is to significantly improve the surface properties such as scratch resistance of the pressure-sensitive retransfer image obtained by pressure-sensitive retransfer of the ink transfer image onto the final transfer object. It is an object of the present invention to provide an ink ribbon for manufacturing a dry transfer material which is made possible.

[0009]

In order to achieve this object, the ink ribbon for producing a dry transfer material of the present invention provides an ink transfer image such as a character or a graphic obtained by using a thermal transfer method.
An ink ribbon for producing a dry transfer material, which is capable of being pressure-sensitively retransferred onto a desired final transfer object by an external pressure, containing an adhesive-containing microcapsule on a film ribbon base material. A pressure-sensitive retransfer adhesion adjusting layer, an ink layer, a pressure-sensitive retransfer releasing adjustment layer containing microcapsules containing a release agent, and a heat-sensitive adhesive layer. It is characterized by

The adhesive used in the present invention is not particularly limited, but an adhesive capable of curing in an extremely short time and having adhesive strength at the same time is particularly desirable.

That is, a one-component type cyanoacrylate instant adhesive, a two-component main liquid type epoxy adhesive, a two-component main liquid acrylic adhesive, and a two-component type of a main liquid and a primer. It is particularly desirable to use either an acrylic adhesive or a cyanoacrylate instant adhesive of a main liquid and a primer.

Further, the releasing agent used in the present invention is not particularly limited as long as it has an excellent releasing property, but most preferably silicone oil, fluorine oil, olefin oil, It is particularly desirable to use either a paraffin oil or an alkyd oil.

The material of the wall material of the microcapsule which is destroyed by the pressure applied from the outside is melamine-formaldehyde resin, urea-formaldehyde resin, gelatin, gum arabic, polyvinyl alcohol,
Egg white, alginate, zein, casein,
Known materials such as methylcellulose, carboxymethylcellulose, ethylene-maleic anhydride copolymer, vinylmethylether-maleic anhydride copolymer, polyurethane resin and polyurea can be used.

The capsule diameter of the microcapsules is preferably 0.1 to 20 μm, but is preferably 0 in order to obtain a good pressure-sensitive retransfer image very easily with a pressure corresponding to the stamp pressure. It is particularly desirable that the thickness is 0.5 to 10 μm.

That is, when the capsule diameter of the microcapsule is less than 0.1 μm, the minimum pressure value required for breaking the microcapsule increases significantly, and the microcapsule becomes extremely difficult to break.

On the other hand, the capsule diameter of the microcapsule is 2
When it is 0 μm or more, the minimum pressure value required for breaking the microcapsules is significantly reduced.

Therefore, the microcapsules are easily broken and the preservability of the microcapsules is deteriorated. Therefore, the above range is particularly desirable.

Similarly, the coating thickness is preferably 1 to 20 μm, and more preferably 1 to 10 μm.

That is, if the coating thickness is less than 1 μm, the adhesive force and releasability required for good pressure-sensitive retransfer cannot be obtained. On the other hand, when the coating thickness is 20 μm or more and the capsule diameter of the microcapsules is small, the microcapsules are less likely to be broken efficiently. When the coating thickness is 20 μm or more and the capsule diameter of the microcapsules is large, the microcapsules are Is easy to destroy. Therefore, the above range is particularly desirable.

The film-shaped ribbon base material used in the ink ribbon for producing a dry transfer material of the present invention is not limited in any way, but it is preferably a publicly known conventional base material for a thermal transfer ink ribbon. Those are preferable.

Most preferably, the thermal head is in close contact with the film. Therefore, the film-shaped ribbon base material may include polyesters such as polyethylene terephthalate and polybutylene terephthalate, polyimides, polycarbonates, A resin film made of polysulfone, polyethersulfone, polyphenylene sulfide, or the like, or paper such as condenser paper or glassine paper is preferable.

Further, the thickness thereof is appropriately determined depending on the kind of material, but is preferably 1 to 30 μm. However, in order to obtain a good ink transfer image,
It is particularly desirable to use a film having a thickness of preferably 3 to 20 μm.

That is, the thickness of the film ribbon base material is 1 μm.
If the thickness is less than m, the running of the ink ribbon is unstable, and the running performance is significantly reduced. On the other hand, if the thickness of the film-shaped ribbon substrate is 30 μm or more, each heating element of the thermal head during recording is used. The above-mentioned range is particularly desirable because the amount of heat required to generate heat becomes large.

Further, as a dispersant or an emulsifier mainly used for microencapsulating the adhesive and the release agent and for preparing a microcapsule solution,
Known dispersants such as ionic surfactants such as sodium hexametaphosphate and condensed sodium naphthalenesulfonate, nonionics such as glycerin fatty acid ester, sucrose fatty acid ester, sorbitan fatty acid ester, and propylene glycol fatty acid ester It is possible to use a known emulsifier such as a hydrophilic surfactant.

Further, a pressure-sensitive retransfer adhesion adjusting layer, an ink layer,
And, as the colorant that can be contained in the pressure-sensitive retransfer release controlling layer, each color pigment such as carbon black for black coloring is mainly used,
Dyes such as leuco dyes that develop an acidic substance and diazo dyes that develop a basic substance can be appropriately used as necessary, and are not limited.

For example, as a color-forming component of a leuco dye which is colored by an acidic substance, known compounds such as phthalide compounds, fluorane compounds, lactone compounds, triphenylmethane compounds, rhodamine lactam compounds and quinone compounds are known. The material can mainly be used.

An acidic substance such as a phenolic substance is mainly used as a developer for a leuco dye that develops a color by an acidic substance, and the color-forming reaction between the color-forming component and the color-developing agent occurs at a thermal color development temperature. As it progresses, it is a mechanism that develops a single color.

The diazo dye which develops a color by a basic substance is composed by combining a diazo compound which is an acidic substance and a coupling compound which is a basic dye precursor, and the diazo compound and the cup by heating are combined. It develops a single color based on the contact of the ring compound.

Next, as the pressure-sensitive adhesive component used as one component of the pressure-sensitive retransfer adhesion controlling layer and the ink layer, polyvinyl chloride, polyacrylic acid ester, ethylene-vinyl acetate copolymer, ethylene- Ethyl acrylate
Copolymer, vinyl-based polymer such as polyvinyl acetate, polyvinyl ether, polyvinyl acetal, polyisobutylene, etc., fiber-based polymer such as ethyl cellulose, nitrocellulose, cellulose acetate and chlorinated rubber , And at least one selected from rubber-based polymers such as natural rubber.

Further, as the heat-sensitive adhesive component contained in the heat-sensitive adhesive layer, a resin having a large heat-sensitive adhesive property such as ethylene-vinyl acetate copolymer, polyvinyl acetate, ionomer, acrylic polymer, ethylene-ethyl acrylate is used. -Tocopolymer, ethylene-acrylic acid copolymer, vinyl chloride-vinyl acetate copolymer, polyvinylpyrrolidone, polyvinyl alcohol, polyamide, ethyl cellulose, etc. ..

Further, the pressure-sensitive retransfer adhesion controlling layer, the pressure-sensitive retransfer release controlling layer, the ink layer and the heat-sensitive adhesive layer may contain a tackifier, a binder agent, a surface modifier and the like. Is.

The tackifier is mainly used for adhesion of ink components,
It has a function of improving hardness, imparting cohesive force, imparting tackiness and imparting tackiness of a pressure-sensitive adhesive component, and specific examples thereof include petroleum-based resins, rosin-based resins, ketone-based resins, polyamide-based resins, A resin containing a phenol resin is used.

As the binder, lipophilic binder agents such as casein, zein (zein) and other protein-based nitrocellulose, acetyl cellulose and other cellulosic binders, and polyvinyl alcohol , Water-soluble binder agents such as polyethylene oxide, carboxymethylcellulose, polyvinylpyrrolidone, hydroxypropylcellulose, polyamide resin, polyester resin, polyethylene resin, polypropylene resin, polystyrene resin, polyvinyl chloride resin, ethylene-vinyl acetate Polymer / Polymethyl methyl methacrylate / Ionomer
At least one selected from thermoplastic binder agents such as resins
A resin binder containing more than one type is used, and candelilla wax, carnauba wax,
Plant wax such as rice wax, wood wax, beeswax,
It is also possible to use a wax binder containing at least one selected from animal waxes such as lanolin and spermaceti, montan wax, mineral waxes such as ceresin, paraffin wax and petroleum waxes such as microcrystalline wax. It is possible.

It is also possible to use at least one resin binder selected from the resin binder and at least one wax binder selected from the wax binder in combination, and there is no difference. It is a thing.

The surface modifier reduces stickiness and tackiness of the ink ribbon surface, and reduces frictional resistance, so that good storage stability without blocking, and good ribbon running performance without meandering or slippage. It is possible to obtain the above-mentioned materials, and specific examples thereof include known materials such as fluorine-based polymers and silicone-based polymers.

Then, on the surface of the film-shaped ribbon base material opposite to the coated surface of the pressure-sensitive retransfer adhesion adjusting layer, the ink layer, the pressure-sensitive retransfer release controlling layer and the heat-sensitive adhesive layer, a silicone resin or the like is applied. It is possible to provide an anti-sticking layer containing the heat-resistant resin, and at least one kind selected from pigments such as barium sulfate, titanium oxide, aluminum hydroxide, zinc oxide and calcium carbonate may be contained. There is nothing wrong with it.

[0037]

The ink ribbon for producing a dry transfer material according to the present invention having the above-mentioned structure is a pressure-sensitive retransfer adhesion adjusting layer comprising a film-shaped ribbon base material and microcapsules containing an adhesive. And the ink layer and the pressure-sensitive retransfer release adjusting layer and the heat-sensitive adhesive layer which are configured to contain the microcapsules containing the release agent. The ink transfer image printed on the retransfer sheet is applied to the paper by simply applying a pressure equivalent to the stamp pressure from the surface of the retransfer sheet opposite to the surface on which the ink transfer image is formed. , Pressure-sensitive retransfer onto a desired final transfer object such as plastic, metal, or wood becomes extremely easy and extremely reliable.

Then, the pressure-sensitive retransferred print image is crushed,
It is possible to obtain a good pressure-sensitive retransfer image which is firmly pressure-sensitively adhered onto the final transfer object without any blurring, spreading or brittleness.

[0039]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

However, it goes without saying that the present invention is not limited by such description.

In addition to the following embodiments, various changes, modifications, improvements, etc. can be added to the present invention based on the knowledge of those skilled in the art without departing from the spirit of the present invention. Is to be understood.

Example 1 FIG. 1 is an enlarged sectional view of an ink ribbon for producing a dry transfer material according to the present invention.

As shown in FIG. 1, a pressure-sensitive retransfer adhesion adjusting layer 2 comprising a film-shaped ribbon substrate 1 and first microcapsules 4 containing an adhesive 3 and a colorant 5.
An ink layer 6 containing a colorant 7 and a pressure-sensitive adhesive component, a second microcapsule 10 containing a release agent 9 and a pressure-sensitive retransfer release adjusting layer containing a colorant 11. 8 and the heat-sensitive adhesive layer 12 were sequentially provided.

Next, one embodiment of the present invention will be described according to the manufacturing process of the ink ribbon for manufacturing the dry transfer material shown in FIG.

First, the steps of finely dispersing and emulsifying the adhesive are carried out.

The step of finely dispersing and emulsifying the adhesive is carried out by atomizing the one-pack type cyanoacrylate-based instant adhesive 3 by a mechanical method such as stirring to prepare the one-pack type cyanoacrylate-based instant adhesive. A fine dispersion of 3 is uniformly contained, or a fine dispersion of an adhesive to prepare an emulsion and an emulsification step are performed.

Here, a dispersant or an emulsifier was used in order to efficiently finely disperse or emulsify, and to stably maintain the obtained fine dispersion and emulsion state.

Then, a fine dispersion of the adhesive, a fine dispersion prepared in the emulsification step, or a microcapsule wall substance having a characteristic of breaking the emulsion at a specific external pressure value or more, and a melamine-formaldehyde resin are added. Thus, a microencapsulation process for producing the first microcapsules 4 by containing and encapsulating is performed.

Next, after finely dispersing or emulsifying the first microcapsules 4 produced in the microencapsulation step and the colorant 5 with a dispersant or an emulsifier,
Fine dispersion of the first microcapsules for preparing the first microcapsule liquid by adding a wax binder,
Perform an emulsification process.

The first microcapsule liquid prepared in the step of finely dispersing and emulsifying the first microcapsules is applied by a known coating method such as bar coating method, blade coating method, air knife coating method, gravure coating method, The film is coated on the polyethylene terephthalate of the film-shaped ribbon base material 1 by a roll coating method, a spray coating method, a dip coating method, or the like.

Then, the polyethylene terephthalate of the film-shaped ribbon base material 1 coated with the first microcapsule liquid is subjected to the step of drying the first microcapsule coating layer.
The pressure-sensitive retransfer adhesion adjusting layer 2 is formed by heating and drying the resin under a 105 ° C. atmosphere.

Further, by finely atomizing the colorant 7 and the pressure-sensitive adhesive component by a mechanical method such as stirring, a fine dispersion liquid or an emulsified liquid in which the colorant 7 and the pressure-sensitive adhesive component are uniformly contained. The steps of finely dispersing and emulsifying the ink components for preparing are carried out.

Also in this case, a dispersant or an emulsifier was used in order to efficiently finely disperse or emulsify and to stably maintain the obtained fine dispersion and emulsion state.

Subsequently, the fine dispersion of the ink components, the fine dispersion prepared in the emulsification step, or the emulsion is applied by a known coating method such as bar coating method, blade coating method, air knife coating method, gravure coating method. It is coated on the pressure-sensitive retransfer adhesion control layer 2 by a roll coating method, a spray coating method, a dip coating method, or the like.

Immediately after the application of the ink component in the application step, heat drying is performed in an atmosphere of 110 ° C.

The ink layer 6 is formed by the step of drying the ink coating layer.

Next, a step of finely dispersing and emulsifying the release agent is carried out.

In the step of finely dispersing and emulsifying the releasing agent, the silicone oil releasing agent 9 is atomized by a mechanical method such as stirring so that the silicone oil releasing agent 9 is uniformly contained. A fine dispersion of a mold release agent for preparing a liquid or an emulsion and an emulsification step are performed.

Also in this case, a dispersant or an emulsifier was used in order to efficiently finely disperse or emulsify, and to stably maintain the obtained fine dispersion and emulsion state.

Then, a fine dispersion of the release agent, a fine dispersion prepared in the emulsification step, or a microcapsule wall substance having a characteristic of destroying the emulsion at a specific external pressure value or more, a melamine-formaldehyde resin. Thus, a microencapsulation process for producing the second microcapsules 10 by encapsulating and containing is performed.

Next, the second microcapsules 10 produced in the microencapsulation process and the colorant 11 are dispersed into
Alternatively, after finely dispersing or emulsifying with an emulsifier, a wax binder is added to prepare a second microcapsule liquid.

The second microcapsule liquid prepared in the step of finely dispersing and emulsifying the second microcapsules is applied by a known coating method such as bar coating method, blade coating method, air knife coating method, gravure coating method, Coating is performed on the ink layer 6 by a roll coating method, a spray coating method, a dip coating method, or the like.

Then, the polyethylene terephthalate of the film-shaped ribbon base material 1 coated with the second microcapsule liquid is subjected to the step of drying the second microcapsule coating layer.
The pressure-sensitive retransfer release adjusting layer 8 is formed by heating and drying the resin under a 105 ° C. atmosphere.

Further, the steps of finely dispersing and emulsifying the components of the heat-sensitive adhesive layer are carried out.

The steps of finely dispersing and emulsifying the components of the heat-sensitive adhesive layer are
By finely atomizing the heat-sensitive adhesive component by a mechanical method such as stirring, a fine dispersion or emulsion containing the heat-sensitive adhesive component uniformly is prepared.

Also in this case, a dispersant or an emulsifier was used in order to efficiently finely disperse or emulsify, and to stably maintain the obtained fine dispersion and emulsion state.

Finally, the fine dispersion of the heat-sensitive adhesive layer component, the fine dispersion prepared in the emulsification step, or the emulsion is applied by a known coating method such as bar coating method, blade coating method, air knife coating method, gravure method. The pressure-sensitive retransfer release controlling layer 8 is coated by a coating method, a roll coating coating method, a spray coating method, a dip coating method, or the like. Then, the polyethylene terephthalate of the film-shaped ribbon base material 1 coated with the heat-sensitive adhesive layer component is heated and dried in an atmosphere of 110 ° C. in the drying step of the heat-sensitive adhesive layer to form the heat-sensitive adhesive layer 12. And the final ink ribbon for producing the dry transfer material according to the first embodiment is formed.

On the other hand, FIG. 3 is an enlarged cross-sectional view of a dry transfer material produced by using the ink ribbon for producing the dry transfer material of the first embodiment. The dry transfer material 15 is a second transfer sheet 14 containing a heat-sensitive adhesive layer 12 and a release agent 9 on a retransfer sheet 14.
Pressure-sensitive retransfer release adjusting layer 8 containing microcapsules 10 of the above, an ink layer 6 and pressure-sensitive retransfer adhesion containing first microcapsules 4 containing adhesive 3. The adjustment layer 2 is produced by sequentially laminating it.

Next, the procedure of the method for producing the dry transfer material 15 will be briefly described.

First, the ink ribbon for producing the dry transfer material of Example 1 and the retransfer sheet 14 are housed in a cassette to manufacture a ribbon cassette. Then, the ribbon cassette is attached to a known dry transfer material manufacturing apparatus (for example, P-touch manufactured by Brother Industries, Ltd.), and the ink ribbon for dry transfer material manufacturing is used as a thermal head 13 built in the dry transfer material manufacturing apparatus. Contact and adhere. At this time, the ink ribbon for producing the dry transfer material and the retransfer sheet 14 are also in close contact with each other.

The thermal head 13 is composed of a large number of minute heating elements (not shown) and has a mechanism in which only the heating elements in the portions corresponding to the characters or figures to be recorded generate heat during recording. I have.

Then, by inputting the data, only the heating elements in the portions corresponding to the characters or figures to be recorded among the large number of heating elements of the thermal head 13 are pressure-sensitive retransfer adhesion adjusting layer 2. The ink layer 6, the pressure-sensitive retransfer release controlling layer 8 and the heat-sensitive adhesive layer 12 are heated to a temperature higher than the heat melting temperature.

As a result, the desired ink transfer image is thermally transferred onto the retransfer sheet 14, and the dry transfer material 15 having the desired ink transfer image can be manufactured.

After the surface of the retransfer sheet 14 on which the ink transfer image is formed is fixed in close contact with the final transfer object, the surface of the retransfer sheet 14 opposite to the surface on which the ink transfer image is formed. From the surface, the first microcapsule 4 and the second microcapsule 10 are destroyed by instantaneously applying a pressure corresponding to the stamping pressure, and the cyanoacrylate instant adhesive 3 and the silico-containing instantly contained and encapsulated therein. The desired oil-transferred image is made to flow out onto the final transfer target material such as paper, plastic, metal or wood by spilling the oil release agent 9, and as a result, there is no crushing, spreading or brittleness. A good quality pressure sensitive retransfer image could be obtained.

In the first embodiment, the material is cured instantly,
At the same time, the cyanoacrylate instant adhesive 3 having adhesive strength is used, and the silicone oil release agent 9 flows out instantly, and the adhesive force between the pressure-sensitive retransfer release adjusting layer 8 and the heat-sensitive adhesive layer 12 is instant. Therefore, it became possible to obtain a pressure-sensitive retransfer image in an extremely short time.

Moreover, a heat-sensitive adhesive layer 12 is newly provided on the pressure-sensitive retransfer release adjusting layer 8 constituted by containing the second microcapsules 10 containing the silicone oil releasing agent 9. As a result, the releasability and the heat-sensitive adhesiveness contribute separately, so that the releasability works extremely efficiently. Therefore, the pressure-sensitive retransfer property, which has become extremely easy, has become extremely reliable.

The colorant 5 is added to the pressure-sensitive retransfer adhesion adjusting layer 2.
By including the colorant 7 in the ink layer 6 and the colorant 11 in the pressure-sensitive retransfer release adjusting layer 8, the cohesive force of the ink transfer image was improved. It is now possible to perform pressure-sensitive retransfer on the final transfer target in a perfect form without any blurring.

The magnitude of the stamp pressure corresponds to the pressure value required to break the first microcapsule 4 and the second microcapsule 10, and is 10 g / cm ² to 200.
0 g / cm ² is desirable, but in order to easily obtain a good pressure-sensitive retransfer image, it is preferably 70 g / cm ^{2 to} 1000 g.
/ Cm ² is particularly desirable.

That is, the magnitude of the stamp pressure is 10 g /
When it is less than cm ² , the first microcapsule 4 and the second microcapsule 10 are less likely to be broken, and the pressure-sensitive retransfer property is deteriorated.

On the other hand, the stamp pressure is 2000 g.
Above / cm ² , the pressure value cannot be obtained by the stamp. Therefore, the above range is particularly desirable.

Further, the magnitude of the external pressure necessary for breaking the first microcapsules 4, including the stamping pressure, is the same as the magnitude of the external pressure necessary for breaking the first microcapsules 10. In addition, even if the magnitude of the external pressure required to break any of the microcapsules is large, there is no problem and there is no limitation.

Further, coloring agent 5, coloring agent 7 and coloring agent 11
, It is common to use the same material,
By using materials with different structures, you can express the same hue,
In addition, it is safe to express intermediate colors.

Using the pressure-sensitive retransfer image obtained as described above and the pressure-sensitive retransfer image of the conventional example as a comparative example, the scratching strength was measured and the scratch resistance was compared. It was shown to.

Sample 1 is based on the pressure-sensitive retransfer image obtained by using the dry transfer material produced from the ink ribbon for producing the dry transfer material of Example 1, and the pressure-sensitive retransfer image of the conventional example is used. The transfer image is specifically described as a dry transfer material prepared from an ink-containing microcapsule containing an adhesive and an ink ribbon for manufacturing a dry transfer material containing no microcapsule containing a release agent. It refers to a pressure-sensitive retransfer image obtained by using.

As a result of comparison with the pressure-sensitive retransfer image of the conventional example, the final transfer object of the pressure-sensitive retransfer image obtained by using the dry transfer material prepared from the ink ribbon for producing the dry transfer material of the present Example 1. It can be seen that since the pressure-sensitive retransferred image became strong due to the significant improvement in the adhesion with the, the scratch resistance such as scratching strength was significantly increased and improved.

In addition, the present Example 1 made from a dry transfer material
FIG. 8 shows the result of observation and comparison of thermal shock resistance between the pressure-sensitive retransfer image of Example 1 and the pressure-sensitive retransfer image of the conventional example.

As a concrete explanation of the observation and comparison method, first, the temperature is lowered stepwise from a room temperature atmosphere to −20 ° C. and then left for 24 hours continuously. Then, after a continuous standing for a total of 72 hours in the atmosphere of 55 ° C. and 80% RH for 48 hours and in the atmosphere of −20 ° C. for 24 hours, a total of 10 cycles are carried out.

Then, for each cycle, the number of samples in which the occurrence of cracks, bleeding and the like and the change in hue and the like were confirmed was observed by intermittent visual observation up to 10 cycles.
It is obtained for 0 pieces.

The pressure-sensitive retransfer adhesion adjusting layer 2 of Example 1 was contained by using the adhesive 3, and the pressure-sensitive retransfer releasing adjusting layer 8 was used as the pressure-sensitive retransfer adhesion adjusting layer 2 having excellent heat resistance and water repellency. Since the release agent 9 was contained, the pressure-sensitive retransfer image obtained from this Example 1 showed no occurrence of cracks, bleeding, etc. and no change in hue etc. even after 480 to 720 hours. It turns out that it is excellent in thermal shock resistance.

(Example 2) The pressure-sensitive retransfer adhesion adjusting layer 17 of FIG. An ink ribbon for producing a dry transfer material was produced in the same manner as in Example 1 except that the colorant 11 was not contained and the pressure-sensitive retransfer release controlling layer 16 was used.

FIG. 4 is an enlarged cross-sectional view of the ink ribbon for producing a dry transfer material according to the second embodiment.

Then, in the same manner as in Example 1, a dry transfer material was prepared from the ink ribbon for producing the dry transfer material,
As a result of the pressure-sensitive retransfer test, the first microcapsule 4 and the second microcapsule 10 are destroyed by the external pressure corresponding to the stamp pressure, and the adhesive 3 and the release agent 9
Is leaked.

The adhesive 3 that has flowed out has an adhesive force simultaneously with the final transfer target, and at the same time, the released release agent 9 is heat-sensitively adhered to the pressure-sensitive retransfer release adjusting layer 16. Since the adhesion with the flexible layer 12 is significantly reduced, it was possible to obtain a pressure-sensitive retransfer image of good quality without crushing, spreading, brittleness, or the like.

Further, as in Example 1, a cyanoacrylate type instant adhesive 3 which is instantly cured and has adhesive strength at the same time is used, and the silicone oil release agent 9 is instantly flown out and pressure-sensitive re-use is carried out. Since the adhesion between the transfer release adjusting layer 16 and the heat-sensitive adhesive layer 12 is instantly reduced, it is possible to obtain a pressure-sensitive retransfer image in an extremely short time.

Moreover, the heat-sensitive adhesive layer 12 is formed on the pressure-sensitive retransfer release adjusting layer 16 which contains the second microcapsules 10 containing the silicone oil release agent 9.
By newly providing, the releasability and the heat-sensitive adhesive property are separately contributed, so that the releasability works extremely efficiently. Therefore, the pressure-sensitive retransfer performance, which has become extremely easy,
It was also extremely reliable.

Using the pressure-sensitive retransfer image obtained as described above and the pressure-sensitive retransfer image of the conventional example as a comparative example, the scratch strength was measured in the same manner as in Example 1, and the scratch resistance was measured. The results of comparison of the above are shown in FIG.

Sample 2 is based on the pressure-sensitive retransfer image obtained by using the dry transfer material prepared from the ink ribbon for producing the dry transfer material of Example 2.

As a result of comparison with the pressure-sensitive retransfer image of the conventional example, the final transfer object of the pressure-sensitive retransfer image obtained by using the dry transfer material produced from the ink ribbon for producing the dry transfer material of the second embodiment. It can be seen that since the pressure-sensitive retransferred image became strong due to the improved adhesion with, the scratch resistance such as scratching strength was significantly increased and improved.

Similarly, the results of observation and comparison of thermal shock resistance are shown in FIG.

The pressure-sensitive retransfer adhesion adjusting layer 17 of Example 2 was made to contain the adhesive 3 and the pressure-sensitive retransfer release adjusting layer 16 was made of silicone oil excellent in heat resistance and water repellency. Since the release agent 9 is used for inclusion,
The pressure-sensitive retransfer image obtained from this Example 2 is 480 to 72.
It can be seen that even after 0 hour has elapsed, cracks, bleeding and the like are not generated and the hue and the like are not observed, and the thermal shock resistance is excellent.

(Example 3) A dry process was carried out in the same manner as in Example 1 except that the colorant 5 of the pressure-sensitive retransfer adhesion adjusting layer 2 in FIG. An ink ribbon for producing a transfer material was produced.

FIG. 5 is an enlarged cross-sectional view of an ink ribbon for producing a dry transfer material according to the third embodiment.

Then, in the same manner as in Example 1, a dry transfer material was prepared from the ink ribbon for producing the dry transfer material,
As a result of the pressure-sensitive retransfer test, the first microcapsule 4 and the second microcapsule 10 are destroyed by the external pressure corresponding to the stamp pressure, and the adhesive 3 and the release agent 9
Is leaked.

The adhesive 3 that has flowed out has an adhesive force simultaneously with the final transferred material, and at the same time, the released release agent 9 is heat-sensitively adhered to the pressure-sensitive retransfer release adjusting layer 8. Since the adhesion with the flexible layer 12 is significantly reduced, it was possible to obtain a pressure-sensitive retransfer image of good quality without crushing, spreading, brittleness, or the like.

Further, as in Example 1, the cyanoacrylate type instant adhesive 3 which is instantly cured and has an adhesive force at the same time is used, and the silicone oil release agent 9 is instantly flown out and pressure-sensitive re-use is carried out. Transfer release adjusting layer 8 and heat-sensitive adhesive layer 1
Since the adhesive force with 2 is instantly reduced, it is possible to obtain a pressure-sensitive retransfer image in an extremely short time.

Moreover, a heat-sensitive adhesive layer 12 is newly provided on the pressure-sensitive retransfer release adjusting layer 8 constituted by containing the second microcapsules 10 containing the silicone oil releasing agent 9. As a result, the releasability and the heat-sensitive adhesiveness contribute separately, so that the releasability works extremely efficiently. Therefore, the pressure-sensitive retransfer property, which has become extremely easy, has become extremely reliable.

Using the pressure-sensitive retransfer image obtained as described above and the pressure-sensitive retransfer image of the conventional example as a comparative example, the scratch strength was measured in the same manner as in Example 1, and the scratch resistance was measured. The results of comparison of the above are shown in FIG.

Sample 3 is based on the pressure-sensitive retransfer image obtained by using the dry transfer material produced from the ink ribbon for producing the dry transfer material of Example 3.

As a result of comparison with the pressure-sensitive retransfer image of the conventional example, the final transfer target of the pressure-sensitive retransfer image obtained by using the dry transfer material prepared from the ink ribbon for producing the dry transfer material of the third embodiment. It can be seen that since the pressure-sensitive retransferred image became strong due to the improved adhesion with the, the scratch resistance such as scratching strength was significantly increased and improved.

Similarly, the results of observation and comparison of thermal shock resistance are shown in FIG.

The pressure-sensitive retransfer adhesion adjusting layer 17 of Example 3 was contained by using the adhesive 3, and the pressure-sensitive retransfer release adjusting layer 8 was used as the silicone oil excellent in heat resistance and water repellency. Since the release agent 9 was contained, the pressure-sensitive retransfer image obtained from this Example 3 was 480 to 720.
Even after a lapse of time, generation of cracks, bleeding, etc. and changes in hue etc. were not observed, and it can be seen that the thermal shock resistance is excellent.

Example 4 Similar to Example 1, except that the colorant 11 of the pressure-sensitive retransfer release adjusting layer 8 in FIG. 1 was not contained and the pressure-sensitive retransfer release adjusting layer 16 was used. An ink ribbon for producing a dry transfer material was produced.

FIG. 6 is an enlarged cross-sectional view of the ink ribbon for producing a dry transfer material according to the fourth embodiment.

Then, in the same manner as in Example 1, a dry transfer material was prepared from the ink ribbon for producing the dry transfer material,
As a result of the pressure-sensitive retransfer test, the first microcapsule 4 and the second microcapsule 10 are destroyed by the external pressure corresponding to the stamp pressure, and the adhesive 3 and the release agent 9
Is leaked.

The adhesive 3 that has flowed out has an adhesive force simultaneously with the final transferred material, and at the same time, the release agent 9 that has flowed out has a heat-sensitive adhesive bond with the pressure-sensitive retransfer release adjusting layer 16. Since the adhesion with the flexible layer 12 is significantly reduced, it was possible to obtain a pressure-sensitive retransfer image of good quality without crushing, spreading, brittleness, or the like.

Further, as in Example 1, the cyanoacrylate type instant adhesive 3 which was cured instantaneously and had adhesive strength at the same time was used, and the silicone oil release agent 9 was instantaneously flown out and pressure-sensitive re-use was carried out. Since the adhesion between the transfer release adjusting layer 16 and the heat-sensitive adhesive layer 12 is instantly reduced, it is possible to obtain a pressure-sensitive retransfer image in an extremely short time.

In addition, the heat-sensitive adhesive layer 12 is formed on the pressure-sensitive retransfer release adjusting layer 16 which contains the second microcapsules 10 containing the silicone oil release agent 9.
By newly providing, the releasability and the heat-sensitive adhesive property are separately contributed, so that the releasability works extremely efficiently. Therefore, the pressure-sensitive retransfer performance, which has become extremely easy,
It was also extremely reliable.

Using the pressure-sensitive retransfer image obtained as described above and the pressure-sensitive retransfer image of the conventional example as a comparative example, the scratch strength was measured in the same manner as in Example 1, and the scratch resistance was measured. The results of comparison of the above are shown in FIG.

Sample 4 is based on the pressure-sensitive retransfer image obtained by using the dry transfer material produced from the ink ribbon for producing the dry transfer material of Example 4.

As a result of comparison with the pressure-sensitive retransfer image of the conventional example, the final transferred material of the pressure-sensitive retransfer image obtained by using the dry transfer material produced from the ink ribbon for producing the dry transfer material of this Example 4. It can be seen that since the pressure-sensitive retransferred image became strong due to the improved adhesion with the, the scratch resistance such as scratching strength was significantly increased and improved.

Similarly, the results of observation and comparison of thermal shock resistance are shown in FIG.

The pressure-sensitive retransfer adhesion adjusting layer 2 of Example 4 was made to contain an adhesive 3 and the pressure-sensitive retransfer releasing adjusting layer 16 was made of silicone oil excellent in heat resistance and water repellency. Since the release agent 9 was contained, the pressure-sensitive retransfer image obtained from this Example 4 was 480 to 720.
Even after a lapse of time, generation of cracks, bleeding, etc. and changes in hue etc. were not observed, and it can be seen that the thermal shock resistance is excellent.

[0123]

As is clear from the above description, the ink ribbon for producing a dry transfer material of the present invention comprises a film-shaped ribbon base material and microcapsules containing an adhesive. A pressure-sensitive retransfer adhesion adjusting layer, an ink layer, a pressure-sensitive retransfer releasing adjusting layer containing microcapsules containing a release agent, and a heat-sensitive adhesive layer are provided in a four-layer structure. By doing so, the ink transfer image is transferred very satisfactorily and very easily to the retransfer sheet, and the ink transfer image transferred to the retransfer sheet is formed into the ink transfer image of the retransfer sheet. Even if you apply pressure instantly from the opposite side of the surface, you can force-sensitively retransfer to the final transfer target such as desired paper, plastic, metal, wood, etc.
There is no crushing, spreading or brittleness in the printed image transferred by pressure-sensitive retransfer, so it is possible to obtain a good image firmly and pressure-sensitively adhered on the final transfer object very easily and very reliably. It was

Further, as for the pressure from the surface of the retransfer sheet opposite to the surface on which the ink transfer image is formed, only the pressure corresponding to the stamp pressure is instantaneously applied, so that the pressure sensitive re-reading can be performed in an extremely short time. The transfer can be completed.

Further, since the integrity of the pressure-sensitive retransfer image and the close contact with the final transferred material are greatly improved, the pressure-sensitive retransfer image becomes solid and the scratch strength of the pressure-sensitive retransfer image is increased. The surface properties such as scratch resistance can be greatly improved.

[Brief description of drawings]

FIG. 1 is an enlarged cross-sectional view of an ink ribbon for producing a dry transfer material according to the present invention.

FIG. 2 is a block diagram showing a manufacturing process of an ink ribbon for manufacturing a dry transfer material.

FIG. 3 is an enlarged cross-sectional view of a dry transfer material manufactured by using the ink ribbon for manufacturing the dry transfer material according to the first embodiment.

FIG. 4 is an enlarged cross-sectional view of an ink ribbon for producing a dry transfer material according to the second embodiment.

FIG. 5 is an enlarged cross-sectional view of an ink ribbon for producing a dry transfer material according to the third embodiment.

FIG. 6 is an enlarged cross-sectional view of an ink ribbon for producing a dry transfer material according to a fourth embodiment.

FIG. 7: Scratch strength using a pressure-sensitive retransfer image obtained by using a dry transfer material prepared from the ink ribbon for producing a dry transfer material of the present invention and a pressure-sensitive retransfer image of a conventional example as a comparative example. It is a figure which shows the result of having measured and measured the abrasion resistance.

FIG. 8 shows a thermal shock resistance obtained by using a pressure-sensitive retransfer image obtained by using a dry transfer material produced from the ink ribbon for producing a dry transfer material of the present invention and a pressure-sensitive retransfer image of a conventional example as a comparative example. It is a figure which shows the result of having observed and compared sex.

[Explanation of symbols]

 1 Filled Ribbon Substrate 2 Pressure Retransfer Adhesion Control Layer 3 Adhesive 4 First Microcapsule 5 Colorant 6 Ink Layer 7 Colorant 8 Pressure Retransfer Release Control Layer 9 Release Agent 10 Second Micro Capsule 11 Colorant 12 Heat-sensitive adhesive layer 13 Thermal head 14 Retransfer sheet 15 Dry transfer material 16 Pressure-sensitive retransfer release adjusting layer 17 Pressure-sensitive retransfer adhesive adjusting layer

Claims (1)

Claim: What is claimed is: 1. An ink transfer image such as a character or a graphic obtained by using a thermal transfer method can be re-transferred onto an intended final transfer object by an external pressure. In the ink ribbon for producing a dry transfer material as described above, a pressure-sensitive retransfer adhesion adjusting layer constituted by containing microcapsules containing an adhesive on a film-shaped ribbon substrate, an ink layer, and a release agent. An ink ribbon for producing a dry transfer material, comprising: a pressure-sensitive retransfer release controlling layer composed of the microcapsules containing and containing a thermosensitive adhesive layer.