JPH11334297A - Transfer body, transferring body thereof, and transfer method using these bodies - Google Patents

Abstract

PROBLEM TO BE SOLVED: To transfer copied toner images with a small quantity of heat energy at a relatively low temperature, besides, by a heat treatment of the short period of time by the use of a transfer body having excellent toner carrying at the time of copying operation and toner transfer during the period of transfer operation with simple structure. and a transferred body having high anti-abrassiveness and wear resistance in toner images with transferred toner images fixed fast. SOLUTION: Toner images 13 consisting of mainly polyester resin is copied to the peeling resin layer 12 of a transfer body 10 by means of a static copying machine, and the transfer body and the peeling resin layer 12 are superimposed on a transferred body 20 to be in contact with a receptor layer 22 so that they are subjected to heating and compressing operation at a pressure of 50-700 kg/cm<2> , and a temperature of 100-300 deg.C for 0.5-5 mins; subsequently, the base material sheet 11 is peeled from the transferred body along with the peeling resin layer 12. The peeling layer 12 contains polyethylene resin and polypropylene resin, and the receptor layer 22 has a glass transition temperature of 50-150 deg.C and consists of synthetic resin such as polyester resin, epoxy resin, and urethane resin.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a transfer member for transferring a toner image onto a surface of a transfer member including a hard substrate such as metal, glass, ceramic, plastic, and the like, a transfer member, and the transfer member. It relates to a transfer method. More specifically, the present invention relates to a transfer member suitable for transferring a color toner image, a transfer member thereof, and a transfer method using the same.

[0002]

2. Description of the Related Art Conventionally, an image transfer sheet for transferring a toner image of this type and an image transfer method using the same have been disclosed in JP-A-7-333882. This image transfer paper is made by applying a release treatment to one side of a base sheet made of paper and then forming a hot melt adhesive layer. Further, in this transfer method, a transfer image is carried in a mirror image state using a copying machine on the hot melt adhesive layer of the image transfer paper, and the hot melt adhesive layer is brought into contact with the transfer object, This is a method in which the substrate sheet is peeled off from the transfer-receiving body after the heating and pressurizing treatment.

Another transfer paper of this type and a transfer method have been proposed in Japanese Patent Application Laid-Open No. 9-202099. In this transfer paper, a transfer image layer is formed by color electronic copying, and a toner coloring material used in the color electronic copying is made of an inorganic pigment coated with an electrostatic material. In addition, this transfer method uses a color electronic copying method in which a transfer image layer is formed of a toner in which an inorganic pigment is coated with an electrostatic material as a transfer paper when a pattern is formed on a transfer target made of a heat-resistant material using the transfer paper. The transfer object after transfer is used in the range of 400 to 12
This is a method of baking at a temperature of 00C for 10 to 480 minutes. By this baking process, the image holding layer underlying the transfer image layer is thermally decomposed and disappears, and the transfer image is printed on the transfer target.

[0004]

SUMMARY OF THE INVENTION However, Japanese Patent Application Laid-Open No. 7-33
In the image transfer paper disclosed in Japanese Patent No. 3882, a hot-melt adhesive layer must be formed after a release layer has been formed on a base sheet, which requires at least two film forming steps. Was. In the transfer method disclosed in Japanese Patent Application Laid-Open No. 9-202099, it is necessary to perform a baking process at a relatively high temperature for a long time. Therefore, the transfer target is limited to a heat-resistant material such as pottery and consumes a large amount of heat energy. There was a problem to do.

SUMMARY OF THE INVENTION An object of the present invention is to provide a transfer member having a simple structure and capable of favorably carrying toner during copying and peeling off toner during transfer. It is another object of the present invention to provide a transferred body in which a transferred toner image is firmly fixed and the fixed toner image has high scratch resistance and abrasion resistance. Still another object of the present invention is to provide a method for transferring a toner image copied or printed by an electrostatic copying machine or an electrostatic printer to a transfer object with a small heat energy by a heat treatment at a relatively low temperature for a short time. It is in.

[0006]

The invention according to claim 1 is
As shown in FIG. 2, a base sheet 11 and a release resin layer 12 formed on one surface of the base sheet 11 to a thickness of 1 to 500 μm and capable of carrying a toner containing a polyester resin as a main component are provided. The transfer body 10 is characterized in that the release resin layer 12 contains one or both of a polyethylene resin and a polypropylene resin. By forming the release resin layer from a polyethylene resin or a polypropylene resin that is incompatible with the polyester resin, the release resin layer has a carrying function of temporarily holding the toner during copying or printing, and a good function of supporting the toner carried during transfer. It has the function of peeling.

The invention according to claim 2 is characterized in that the release resin layer 12 further contains a silicone-based surfactant.
By including the silicone-based surfactant in the release resin layer, the transfer body is easily peeled off from the hard substrate after the transfer to the transfer body.

The invention according to claim 3 is the invention according to claim 1 or 2, wherein the surface resistance value is from 6 × 10 ^{10 to} 7 × 10
^The transfer is ¹⁵ Ω. When the transfer member has a surface resistance value in the above range, the electrostatically charged toner is favorably carried on the release resin layer of the transfer member by the electrostatic copying machine or the electrostatic printer.

As shown in FIG. 3, the invention according to claim 4 comprises a hard base 21 and one to 10
A receiving layer 22 having a thickness of 0 μm and having an adhesive property to the substrate 21 and capable of fixing a toner containing a polyester resin as a main component, wherein the receiving layer 22 is made of a polyester resin, an epoxy resin, and a urethane resin. The transfer member 20 mainly comprising one or more selected synthetic resins and having a glass transition temperature of 50 to 150 ° C. of the receiving layer 22. When the receiving layer is made of the same polyester resin as the toner, the receiving layer has extremely high compatibility with the toner. Further, by setting the glass transition temperature of the receiving layer in the range of 50 to 150 ° C., the adhesion of the toner is improved.

The invention according to claim 5 is the invention according to claim 4, wherein the synthetic resin contained in the receiving layer 22 has an average molecular weight of 10,000 to 100,000. When the average molecular weight of the synthetic resin contained in the receiving layer is in the above range, the resin does not deteriorate at the time of transfer, and the adhesion and adhesion to a hard substrate are improved.

According to a sixth aspect of the present invention, as shown in FIG. 1A, a polyester resin is applied to the release resin layer 12 of the transfer body 10 according to any one of the first to third aspects by an electrostatic copying machine or an electrostatic printer. An image 13 of a toner as a main component is copied or printed, and as shown in FIG. 1B, the transfer body 10 is so arranged that the release resin layer 12 is in contact with the receiving layer 22.
Or, after being heated and pressed at 100 to 300 ° C. and a pressure of 50 to 700 kg / cm ² for 0.5 to 5 minutes while superimposed on the transfer receiving body 20 described in 5, the base sheet 11 is coated together with the release resin layer 12. This is a transfer method for peeling off the transfer body 20. Rather than the conventional high-temperature baking process, the method of the present invention requires only a small amount of heat energy because the heating process is performed in a short time and at a low temperature, and the toner image is satisfactorily peeled from the base sheet and the toner image is transferred. Settles on the body. Further, the transferred toner image is hardly scratched even when rubbed, and is not easily worn.

[0012]

BEST MODE FOR CARRYING OUT THE INVENTION The base sheet of the transfer body of the present invention is
Synthetic paper and plastic sheet having a thickness and strength that can be copied or printed by an electrostatic copying machine or an electrostatic printer.
The release resin layer formed on one side of the base sheet contains 10 to 80% by weight of either or both of a polyethylene resin and a polypropylene resin capable of supporting a toner containing a polyester resin as a main component. The silicone-based surfactant may further be contained in an amount of 1 to 30% by weight. This release resin layer is formed by a method such as melt coating, spray coating, roller coating, or dip coating.
The composition is uniformly coated on the substrate sheet to a thickness of 100 to 100 μm, preferably 10 to 30 μm. It is preferable that the transfer body having such a structure has a surface resistance of 6 × 10 ^{10 to} 7 × 10 ¹⁵ Ω in order to favorably carry the electrostatically charged toner. This surface resistance value is 1 × 10 ¹² to 1 × 1
More preferably, it is 0 ¹⁴ Ω.

Further, the rigid substrate of the transfer object of the present invention comprises
It has a smooth transfer surface that does not deform and change under pressure conditions at a temperature of about 00 to 300 ° C. Specifically, the substrate is made of metal, inorganic glass, glass such as organic glass, tableware,
Ornaments, tiles, ceramics such as Raku-yaki, or European porcelain, ceramics of porcelain such as Shimizu-yaki, Seto-yaki, or plastics, the shape of which is not limited to sheet-like ones, block-like ones or molded products with irregularities, It may be a processed product, a container, or the like. One side of the substrate contains 10 to 50% by weight of one or more synthetic resins selected from polyester resin, epoxy resin and urethane resin, and has a glass transition temperature of 50 to 150 ° C. A layer is formed. This receiving layer has an adhesive property to a hard substrate and is capable of fixing toner.
It is necessary to have three functions. The receiving layer is formed in a thickness of 1 to 100 μm, preferably 10 to 100 μm by a method such as melt coating, spray coating, roller coating, or dip coating in the same manner as the release resin layer described above.
It is uniformly coated on a substrate to a thickness of ３０30 μm. If the glass transition temperature is less than 50 ° C., the receptor layer is fused to the base sheet during transfer, and if it exceeds 150 ° C., the resin itself of the receptor layer becomes hard and the adhesion of the toner deteriorates. The average molecular weight of the synthetic resin contained in the receiving layer is 10,000 to 100,0.
00 is preferred. More preferably 30,00
0 to 50,000. If the average molecular weight is less than 10,000, the resin is thermally degraded or fused with the transfer member.
On the other hand, if it exceeds 100,000, adhesion and adhesion to a hard substrate are deteriorated.

In the transfer method of the present invention, as shown in FIG. 1A, first, the transfer body 10 is set in an electrostatic copying machine or an electrostatic printer, and a toner image is copied or printed on the release resin layer 12 thereof. I do. Next, the transfer body 10 on which the toner image 13 has been copied or printed is overlapped with the transfer body 20 by 0.5 to 5 so that the release resin layer 12 is in contact with the receiving layer 22.
After heating and pressing at 100 to 300 ° C. for 50 minutes at a pressure of 50 to 700 kg / cm ² , the base material sheet 11 and the release resin layer 12 are peeled off from the transferred body 20. Preferred heating and pressurizing conditions are: 1 to 2 minutes, 150 to 200 ° C., 300 to 5
00 kg / cm ² .

[0015]

Next, embodiments of the present invention will be described. <Example 1> 70 μm thick as a base sheet of a transfer body
Of synthetic paper was prepared. On the surface of this synthetic paper, 98% by weight of polyester resin and silicone oil (trade name: KS77
4. Shin-Etsu Chemical Co., Ltd.)
The release resin layer was formed by melt coating using a T-die method so as to have a thickness of 0 μm. A4 base material sheet
A transfer body was obtained by cutting to a size.

Next, as a substrate of the object to be transferred,
Six white tiles of m, side 10 cm and thickness 0.5 cm were prepared. The surface of each of these white tiles was uniformly coated with a resin having the following composition using an air spray gun to form a receiving layer having a thickness of 30 μm on the tile surfaces.

[Composition of Synthetic Resin Constituting Receptive Layer] ・ Saturated copolymerized polyester resin 40% by weight (trade name: UE-3200, Unitika Ltd.) ・ Isocyanate 1% by weight (trade name: Takenate D-11N, Takeda Pharmaceutical Co., Ltd. ・ Methyl ethyl ketone 35% by weight ・ Xylene 24% by weight Total 100% by weight A color electrostatic copying machine (trade name: Pretail 6)
50, Ricoh Co., Ltd.), and reverse-copyed a gravure photo of a flower field where a variety of colorful flowers are blooming. As a result, the gravure image was carried as a mirror image on the release resin layer on the surface of the transfer body. Subsequently, after the six white tiles as the transfer object are closely arranged, the transfer body is placed on the white tile transfer object such that the release resin layer carrying the image by the gravure photograph is in contact with the receiving layer of the transfer object. Overlap with 1
Heating and pressing were performed at 60 ° C. and 300 g / cm ² for 60 seconds. 2
After cooling to 0 ° C., the transfer body was peeled off from the white tile, and a flower field in which many kinds of clear, glossy, and colorful flowers were blooming was transferred to the surface of the white tile.

Example 2 First, the same synthetic paper as in Example 1 having a thickness of 70 μm was prepared as a base sheet of a transfer body. 97% by weight of polypropylene resin on the surface of this synthetic paper
An ink composed of 3% by weight of a silicone oil (trade name: KS774, Shin-Etsu Chemical Co., Ltd.) was melt-coated to a thickness of 100 μm in the same manner as in Example 1 to form a release resin layer. The substrate sheet was cut into an A4 size to obtain a transfer body.

Next, the same six white tiles as in Example 1 were prepared as substrates for the transfer object. The surfaces of these white tiles were uniformly coated with a resin having the following composition by an air spray gun, and then heated at 150 ° C. for 20 minutes to form a 30 μm thick receiving layer on the tile surfaces.

[Composition of Synthetic Resin Constituting Receptive Layer] Epoxy resin 35% by weight (trade name: EPPN-201, Nippon Kayaku Co., Ltd.) Amine curing agent 2% by weight (trade name: CABARD AS・ Nippon Kayaku Co., Ltd. ・ Toluene 40% by weight ・ Xylene 23% by weight Total 100% by weight The above-mentioned transfer member is set in the same color electrostatic copying machine as in Example 1, and various kinds of colorful flowers bloom. The gravure photograph of the flower field was reverse-copied, and the image of the gravure photograph was carried as a mirror image on the release resin layer on the surface of the transfer body. Subsequently, the transfer body was superimposed on the transfer object of the white tile so that the release resin layer carrying the image by the gravure photograph was in contact with the receiving layer of the transfer body in the same manner as in Example 1, and the same conditions as in Example 1 were used. And pressurized. After cooling to 20 ° C., when the transfer body was peeled off from the white tile, a flower field in which various kinds of clear, glossy, and colorful flowers were blooming was transferred to the surface of the white tile.

Example 3 First, a milky white PET (polyethylene terephthalate) film having a thickness of 70 μm was prepared as a base sheet of a transfer body. An ink composed of 50% by weight of a polypropylene resin and 50% by weight of a polyethylene resin was melt-coated on the surface of the synthetic paper to a thickness of 100 μm in the same manner as in Example 1 to form a release resin layer. The substrate sheet was cut into an A4 size to obtain a transfer body.

Next, the same six white tiles as in Example 1 were prepared as substrates for the transfer object. The surfaces of these white tiles were uniformly coated with a resin having the following composition by an air spray gun, and then heated at 150 ° C. for 20 minutes to form a 30 μm thick receiving layer on the tile surfaces.

[Composition of Synthetic Resin Constituting Receptive Layer] Saturated copolymerized polyester resin 30% by weight (trade name: UE-3200, Unitika Ltd.) Epoxy resin 15% by weight (trade name: EPPN-201, Nippon Kayaku Co., Ltd. ・ Amine curing agent 1% by weight (trade name: CABARD AS, Nippon Kayaku Co., Ltd.) ・ Methyl ethyl ketone 20% by weight ・ Xylene 34% by weight Total 100% by weight Set in the same color electrostatic copier as in No. 1 and reverse copy the gravure photo of the flower field where a variety of colorful flowers are blooming and mirror-image the gravure photo on the release resin layer on the surface of the transfer body It was carried by. Subsequently, the transfer body was superimposed on the transfer object of the white tile so that the release resin layer carrying the image by the gravure photograph was in contact with the receiving layer of the transfer body in the same manner as in Example 1, and the same conditions as in Example 1 were used. And pressurized. After cooling to 20 ° C., when the transfer body was peeled off from the white tile, a flower field in which various kinds of clear, glossy, and colorful flowers were blooming was transferred to the surface of the white tile.

<Evaluation> Examples 1, 2 and 3
All of the images transferred by the method described above faithfully reproduce the colors of the original beautiful flower garden scenery, and even if washed 20 times continuously with an automatic dishwasher, no peeling, discoloration, damage, etc. are seen,
Excellent scratch and abrasion resistance.

[0025]

As described above, the transcript of the present invention is
With a simple configuration in which a single release resin layer is provided on the base material sheet, it is possible to favorably carry the toner during copying and peel the toner during transfer. Further, the transfer object of the present invention is characterized in that the transferred toner image is firmly fixed, and the fixed toner image has high scratch resistance and abrasion resistance. Further, according to the transfer method of the present invention, a toner image copied or printed by an electrostatic copying machine or an electrostatic printer can be transferred to a transfer target with a relatively low temperature and a short heat treatment with a small heat energy.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view illustrating a state in which a transfer body carrying a toner image of the present invention is transferred onto a transfer target body of the present invention.

FIG. 2 is a cross-sectional view of the transfer body of the present invention.

FIG. 3 is a cross-sectional view of the transfer object of the present invention.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 10 Transfer body 11 Base sheet 12 Release resin layer 13 Toner image 20 Transfer receiving body 21 Base 22 Reception layer

Claims (6)

[Claims] 1. A base sheet (11), and the base sheet (11)
A release resin layer (12) formed on one side of the substrate to a thickness of 1 to 500 μm and capable of carrying a toner containing a polyester resin as a main component;
Wherein the release resin layer (12) includes one or both of a polyethylene resin and a polypropylene resin. 2. The transfer member according to claim 1, wherein the release resin layer further contains a silicone surfactant. 3. A surface resistance value of 6 × 10 ^{10 to} 7 × 10 ¹⁵ Ω.
The transfer body according to claim 1 or 2, wherein 4. A hard substrate (21) and a toner formed on one surface of the substrate (21) to a thickness of 1 to 100 μm and having an adhesive property to the substrate (21) and containing a polyester resin as a main component. A receiving layer (22) capable of fixing, wherein the receiving layer (22) is mainly composed of one or more synthetic resins selected from polyester-based resins, epoxy-based resins and urethane-based resins; An object to be transferred, wherein the glass transition temperature of the layer (22) is 50 to 150 ° C. 5. The transferred body according to claim 4, wherein the synthetic resin contained in the receiving layer (22) has an average molecular weight of 10,000 to 100,000. 6. The transfer body according to claim 1, wherein
An image (13) of a toner containing a polyester resin as a main component by an electrostatic copying machine or an electrostatic printer on the release resin layer (12) of (10).
Is copied or printed, and the transfer body (10) is separated from the release resin layer (1).
The superposed body (20) according to claim 4 or 5, wherein the superposed body (2) is in contact with the receiving layer (22) for 0.5 to 5 minutes for 100 to 30 minutes.
After heating and pressurizing at 0 ° C. and a pressure of 50 to 700 kg / cm ^2, the base material sheet (11) together with the release resin layer (12) is transferred to the transfer object.
A transfer method for peeling from (20).