JPH08146785A - Transfer method of color copy and toner processing agent used for that transfer method - Google Patents

Abstract

PURPOSE: To provide a transfer method of a color copy by which a color toner image is exactly fixed to a release sheet in a copying machine and the image is clearly transferred without irregularity during a transfer process, and to provide a toner processing agent used for this transfer method. CONSTITUTION: A desired image is copied by a color copying machine on a release sheet 1 having a silicon coating release layer 2. Then a toner processing agent 4 prepared by compounding a solvent comprising at least toluene and ethylacetate and a solid content comprising at least an epoxy resin or butylal resin is applied on the whole surface of the release sheet 1 including the image. Then the image surface of the release sheet 1 is laminated with a transfer body and pressed from the back surface to transfer the image.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a color copy transfer method and a toner processing agent used in the transfer method, and more particularly to three methods, namely toner type, sublimation dye type and ink jet type color copy. Of these, the present invention relates to a toner type color copy transfer method and a toner processing agent used in the transfer method.

[0002]

2. Description of the Related Art Toner-type color copying is performed by fixing fine powders of a thermoplastic resin, for example, epoxy resin, of three primary colors (and sometimes white) to an image at a predetermined ratio. It is configured as follows. Such color copying technology is epoch-making in the sense that the color of the original image can be reproduced on a separate sheet as faithfully as possible, but the reproduction can be loaded into a copy machine. There is a limitation that it can be reproduced only on the copy papers of the above types (particularly the material and the thickness).

Recently, attention has been paid to an excellent original image reproduction function (image and color), and there is a demand that the reproduction can be transferred to a desired paper or object (clothes or three-dimensional product). The technology to transfer is being developed. As the color copy transfer technology, since the toner type color copy uses thermoplastic resin powder, the surface of the color copy on the copy paper is matched to the target object (transfer target), and then heated and pressed. The method of doing was tried.

However, according to this method, an image (toner) can be applied to an image copied on a normal copy paper even if it is heated and pressed.
However, there is a problem in that it cannot be easily separated from the copy paper and transferred to the target object. Therefore, in recent years, a release sheet with a release treatment (usually a silicon coating is applied) on the surface, that is, a special paper or a synthetic resin sheet (heat-resistant) is used in a copy machine instead of a normal copy paper. An attempt has been made to use the toner image on the release layer so that the toner image can be easily released at the time of transfer.

[0005]

However, the present inventor
As a result of repeating the transfer experiment using the release sheet as described above, it was possible to transfer the toner image by heating or pressing (rubbing), but the toner image was still partially formed. I faced a situation where the release sheet remained. Therefore, when a method of increasing the releasing force by increasing the thickness of the releasing layer is adopted, this time, there arises a problem that the color toner is not fixed in the copying machine.

On the contrary, an attempt was made to increase the heating temperature and the pressing force at the time of transfer while keeping the thickness of the releasing layer (the releasing force is small) as it is. Deformation may occur, the image of the thermoplastic color toner may collapse, or the edges of the image may become unclear, and even if the pressing force is increased, complete transfer cannot be performed. I understood. That is, the strength of the releasing force of the release sheet conflicts with the fixing of the color toner in the copying machine and the releasing of the color toner at the time of transfer, and there is no solution.

The inventors of the present invention have made extensive studies on such problems, and the image of the color toner can be surely fixed on the release sheet in the copying machine, and the image can be transferred neatly at the time of transfer. It is an object of the present invention to provide a color copy transfer method and a toner processing agent used in the transfer method.

[0008]

In order to achieve the above object, a color copy transfer method according to the present invention requires a toner type color copying machine to provide a release sheet provided with a release layer of a silicon coating. The image is copied, and then a toner treatment agent adjusted with a solvent containing at least toluene and ethyl acetate and a solid content containing at least an epoxy resin or a butyral resin is applied to the entire surface of the release sheet including the image surface. Then, after aligning the surface image surface of the release sheet with the transfer target and pressing from the back surface, transfer is performed.
That is the means.

According to the present invention, a toner sheet color copying machine is used to copy a desired surface image onto a release sheet provided with a silicone-coated release layer, and then a solvent containing at least toluene and methyl ethyl ketone and at least a urethane resin are used. By applying the toner processing agent adjusted with the solid content to the entire surface of the release sheet including the image surface, and thereafter aligning the image surface of the release sheet with the transfer target, and pressing from the back surface of the release sheet. It is possible to adopt a means of transferring.

According to the present invention, a toner sheet color copying machine is used to copy a desired image to a release sheet having a silicone coating release layer, and then a solvent containing at least isopropyl alcohol and toluene and at least a polyamide resin are used. The toner treatment agent adjusted by the solid content is applied to the entire surface of the release sheet including the image surface, and then the image surface of the release sheet is aligned with the transfer target, and the back surface is pressed. It is possible to adopt a means of transferring with.

According to the present invention, prior to the application of the toner processing agent, the entire surface of the release sheet is wiped from above the image with a silicone remover prepared from a petroleum solvent and a surfactant to remove the image other than the image. It is preferable to take measures to remove the silicon coating remaining on the release sheet.

The method for transferring a color copy according to the present invention comprises the steps of applying a toner processing agent to an image on a release sheet,
Further, an adhesive may be applied and then transferred to the transfer target.

The toner processing agent used for transferring a color copy according to the present invention is adjusted with a solvent containing at least toluene and ethyl acetate and a solid content containing at least an epoxy resin or a butyral resin. Then, it is preferable to simultaneously use the epoxy resin and the butyral resin as the solvent.

Alternatively, the toner processing agent used for transferring a color copy according to the present invention is prepared by using a solvent containing at least toluene and methyl ethyl ketone and a solid content containing at least urethane resin.

Alternatively, the toner processing agent used for transferring a color copy according to the present invention is prepared with a solvent containing at least isopropyl alcohol and toluene and a solid content containing at least a polyamide resin.

[0016]

The method of the present invention and the toner treating agent (prepared with a solvent containing at least toluene and ethyl acetate and a solid content containing at least an epoxy resin or a butyral resin, or a solvent containing at least toluene and methyl ethyl ketone and at least urethane). (Adjusted with a resin or with a solvent containing at least isopropyl alcohol and toluene and a solid content containing at least a polyamide resin), the following effects occur.

That is, at the time of transferring a color copy, a color toner (usually an epoxy resin) is partially dissolved by applying a toner processing agent on the image of the copy, and at the same time, the presence of a solid resin. By increasing the binding force between the color toner fine powders, the color toner image is integrated into a film, and as a result, the color toner image is locally divided and separated when the peeling force at the time of transfer acts. It is thought that it no longer remains on the mold sheet side.

The function of the toner treating agent is to show what kind of chemical reaction the solvent component has with the color toner, and the solid component exerts a binding force on the color toner based on the chemical reaction. It is not clear whether or not it is exerting a mere adhesive function, but as a result,
Compared to conventional transfer using a release sheet, the phenomenon that the color toner image is locally divided and slightly remains on the release sheet side is eliminated.

The toner processing agent is a liquid containing a resin component and has not only excellent compatibility with the resin of the color toner but also adhesiveness to itself, so that it can be applied to a copy image. It can be easily transferred to a transfer target by coating, and since it contains a resin component, the durability of the image surface after transfer is very excellent.

Further, the image of the color toner treated with the toner treatment agent is relatively rich in elasticity, and as a result, not only a flat surface but also a curved surface having irregularities can be smoothly transferred. Other functions will be apparent from the description of the embodiments below.

[0021]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS Preferred embodiments of the color copy transfer method of the present invention and the toner processing agent used in the transfer method will be described in detail below with reference to FIGS.

The copying machine used in this embodiment is a commercially available color toner type model. FIG. 1 is a sectional view showing a state in which a desired original image is copied through the release sheet 1 in this copying machine. The material of the release sheet 1 used in the present invention is made of a synthetic resin film having relatively excellent heat resistance, and a release layer 2 of a silicon film is provided on one side surface thereof. 1 belongs to a known technique and is usually commercially available. This release sheet 1
There is no problem even if ordinary pulp paper is used instead of the synthetic resin film.

The toner treating agent used in this example is
Four kinds were prepared. The first toner processing agent is composed of the following components. A. As a solvent. (1) Toluene: 40% (weight ratio) (2) Ethyl acetate: 15% (3) Isopropyl alcohol: 20% B ． As solids. (1) Epoxy resin: 7% (2) Butyral resin: 13% (3) Nitrified cotton resin: 5% As for the ratio of these solvents, there is no problem in operation within a range of ± 15% increase or decrease for toluene and ethyl acetate.
As for the ratio of solid content, there was almost no problem in working regardless of whether the epoxy resin was used alone or the butyral resin alone, and there was no problem even within the range of ± 10%.

The other second toner processing agent comprises the following components. A. As a solvent. (1) Toluene: 42% (weight ratio) (2) Methyl erketone: 15% (3) Isopropyl alcohol: 15% B. As solids. (1) Urethane resin: 28% As for the ratio of these solvents, toluene and methyl ethyl ketone are similar to those of the first toner treating agent described above.
There was no problem in operation within the range of increase or decrease of ± 15%, and there was no problem even if the urethane resin was changed within the range of increase or decrease of ± 10% as the solid content ratio.

The third toner processing agent comprises the following components. A. As a solvent. (1) Isopropyl alcohol: 55.4% (weight ratio) (2) Cyclohexane: 33.8% (3) n-hexane: 6 .2% (4) Toluene: 4.6% B. As solids. (1) Polyamide resin: 100% (nonvolatile content 24%, weight ratio) As for the ratio of these solvents, there is no problem in terms of operation within the range of ± 15% for isopropyl alcohol and toluene. Moreover, as for the solid content ratio, the polyamide resin had no problem even within the range of ± 10% increase or decrease.

The fourth toner processing agent comprises the following components. A. As a solvent. (1) Isopropyl alcohol: 54.7% (weight ratio) (2) Ethyl acetate: 8.6% (3) Methyl ethyl ketone: 12.0 % (4) Toluene: 24.7% B. As solids. (1) Polyamide resin: 95.0% (2) Nitrified cotton: 5.0% (nonvolatile content 24%, weight ratio) As for the solvent ratio, isopropyl alcohol, toluene and methyl ethyl ketone have no increase or decrease of ± 15%, and the solid content ratio is ± 1 for polyamide resin and nitrified cotton.
Even within the range of 0%, there was no problem.

The silicon remover used in this example was 80% (weight ratio) of mineral oil (petroleum solvent) and 89.2% (weight ratio) of a solvent consisting of propylene glycol and butyl ether 20%. 10.8% of sodium alkylbenzene sulfonate (anionic surfactant).

The color copy transfer method according to the present invention is carried out by the following steps, as shown in FIGS. As shown in FIG. 1, a desired original image is copied onto the release sheet 1 by a color toner type copying machine (not shown). Next, as shown in FIG. 2, the surface of the color toner image 3 on the silicone release layer 2 of the release sheet 1 is wiped with a silicon removing agent (a method of rubbing the silicone removing agent in a sponge and rubbing it). Is good). At this time, the toner image 3 is not dissolved, and the silicon release layer 2 on the part other than the color toner image 3 on the release sheet 1 is removed.

Next, as shown in FIG. 3, the first toner processing agent 4 is applied to the entire surface of the release sheet 1 (including the color toner image 3). The toner processing agent 4 is volatile. Since it is a slightly viscous liquid, it is stored in a handy small container and pressed onto the release sheet 1 by applying pressure to the container and used as a part of the transfer device in the general design industry. Try to stretch it at the bar that is being marked.

After that, as shown in FIG. 4, the transfer paper 5 to be transferred is aligned with the surface of the color toner image 3 of the release sheet 1, and the back surface of the release sheet 1 is rubbed with a spatula. As a result, the transfer paper 5 and the color toner image 3 are integrated due to the adhesiveness of the toner processing agent 4, and then the release sheet 1 is pulled as shown in FIG. Due to the remaining silicone release layer 2, the color toner image 3 is easily peeled off from the release sheet 1, and the transfer onto the transfer paper 5 is completed.

In the practice of the present invention, when a transfer adhesive force is required, for example, in place of the transfer paper 5 serving as a transfer target, for example, transfer is performed on the surface of a three-dimensional transfer target (product). It is preferable to apply a stronger adhesive on the toner treatment agent 4, then apply it to an object to be transferred (commodity), and press it to transfer.

When the second toner processing agent is used in the implementation of this method, the color toners are applied to the release sheet 1 at the same level and the color toner image 3 is not locally peeled at the time of peeling. Needless to say, the transferred toner image 3 is in a film state with extremely excellent stretchability, and in particular, a three-dimensional transferred object having a curved surface (for example, a shape design of a vase or the like is characteristic. It has been found to be suitable for transfer to the surface of commercial products.

[0033]

According to the present invention, the image of the color toner can be reliably fixed to the release sheet in the copying machine, but the image is locally divided during transfer and partially remains on the release sheet side. There is no such problem, and a remarkable effect that a beautiful transfer can be performed without uneven transfer can be achieved.

The toner treating agent used in this transfer method is a liquid material containing a resin component and has not only excellent compatibility with the resin of the color toner but also adhesiveness to itself. Another advantage is that it can be easily transferred to a transfer target by applying it to a copy image and that the image surface after transfer has very good durability because it contains a resin component.

Further, since the image of the color toner treated with the toner treating agent is relatively rich in elasticity, it is possible to smoothly transfer not only to a flat surface but also to a curved surface having unevenness. It also has the advantage that it can be transferred to an article.

[Brief description of drawings]

FIG. 1 is a cross-sectional view illustrating one process showing an embodiment of a color copy transfer method according to the present invention.

FIG. 2 is a cross-sectional view illustrating another step of the embodiment of the color copy transfer method according to the present invention.

FIG. 3 is a cross-sectional view illustrating another step of the embodiment of the color copy transfer method according to the present invention.

FIG. 4 is a cross-sectional view illustrating another step of the embodiment of the color copy transfer method according to the present invention.

FIG. 5 is a cross-sectional view illustrating another step of the embodiment of the color copy transfer method according to the present invention.

[Explanation of symbols]

 1 Release Sheet 2 Silicon Release Layer 3 Color Toner Image 4 Toner Processing Agent 5 Transfer Paper

Claims (9)

[Claims] 1. A toner sheet color copying machine is used to copy a desired image on a release sheet having a silicone-coated release layer, and then a solvent comprising at least toluene and ethyl acetate and at least an epoxy resin or a butyral resin. A toner treatment agent adjusted with a solid content of is applied to the entire surface of the release sheet including the image surface, and then the image surface of the release sheet is aligned with the transfer target, and the back surface is pressed. This is a color copy transfer method. 2. A toner-type color copying machine is used to copy a desired image on a release sheet having a silicone-coated release layer, and then a solvent containing at least toluene and methyl ethyl ketone and a solid content containing at least a urethane resin. The toner treatment agent adjusted by and is applied to the entire surface of the release sheet including the image surface, and then the image surface of the release sheet is aligned with the transfer target, and the transfer is performed by pressing from the back surface. Transfer method of color copy. 3. A toner-type color copying machine is used to copy a desired image on a release sheet having a silicone-coated release layer, and then a solid solution comprising at least isopropyl alcohol and toluene and at least a polyamide resin. Transfer the toner treatment agent adjusted by the amount to the entire surface of the release sheet including the image surface, then align the image surface of the release sheet with the transfer target, and press from the back surface. Color copy transfer method. 4. Prior to applying the toner treatment agent, the entire surface of the release sheet is wiped from above the image with a silicone remover prepared from a petroleum solvent and a surfactant to remove the release sheet other than the image. The method of transferring a color copy according to claim 1, wherein the silicon film remaining on the upper surface is removed. 5. The method of transferring a color copy according to claim 1, wherein after the toner processing agent is applied to the image on the release sheet, an adhesive is further applied and then the image is transferred to the transfer target. 6. A toner processing agent used in a color copy transfer method, which is prepared by adjusting a solvent containing at least toluene and ethyl acetate and a solid content containing at least an epoxy resin or a butyral resin. 7. The toner processing agent used in the method for transferring a color copy according to claim 6, wherein an epoxy resin and a butyral resin are used simultaneously as the solvent. 8. A toner processing agent used in a color copy transfer method, which is prepared by adjusting a solvent containing at least toluene and methyl ethyl ketone and a solid content containing at least urethane resin. 9. A toner processing agent for use in a color copy transfer method, which comprises a solvent containing at least isopropyl alcohol, toluene, and a solid content containing at least a polyamide resin.