JPS61169299A - Thermal transfer method - Google Patents

Abstract

(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.

Description

[Detailed Description of the Invention] (Field of Industrial Application) This invention is applicable to golf balls, accessories, clothing, bags, etc., rubber, plastic, paper, cloth products, etc., with letters and designs, especially handwritten signatures. How to transcribe extremely easily & IM
This is what we intend to offer.

(Prior art) Conventionally, after applying a base treatment to improve adhesion with the ink on an ink support substrate such as glassine paper or polypyrene film, desired characters or designs are printed using the ink to be transferred. , a method is used in which transfer sheets 1 to 1 coated with a protective cover coat are used to perform thermal transfer onto other materials.

Also, British Patent No. 1240794 and British Patent No. 1286
No. 696, letters are printed on a supporting substrate using a specific ink and a pressure-sensitive adhesive, and the pressure-sensitive adhesive layer is rubbed with a pencil or other hard jig to print on other materials. A dry transfer method was used to transfer desired characters to the paper.

(Problems to be Solved by the Invention) However, in the conventional method, in order to make a transfer sheet, it is necessary to perform printing through at least three steps: making a plate, making a negative, and making a plate. Recently, even when transferring a handwritten signature to just a few accessories or golf balls, there has been a problem in that it requires expensive printing equipment, plate-making technology, and a long transfer time. It is an object of the present invention to provide a method for quickly and inexpensively transferring handwritten signatures and existing graphics onto golf balls and the like by using a general-purpose electronic copying machine.

(Structure of the Invention) The original plate can be obtained by directly drawing reversed characters or reversed figures on paper or other sheet-like materials, but since it is troublesome to draw reversed characters, etc., a transparent sheet is used. Draw the characters you want to transfer on top in a normal format. In addition, when using already drawn designs, characters, photographs, etc., they are first copied onto a transparent sheet using an electronic copying machine, and this is used as the original plate. The transparent sheet used at this time may be made of any material as long as it is transparent. Generally transparent cellophane.

Alternatively, it is appropriate to use a plastic film. There is no particular limit to the thickness of the transparent sheet, but for handling reasons it should be 5 to 5.
A range of 00μ is appropriate. Using a transparent sheet is
This is because even if you do not have to take the trouble to draw reversed characters or designs, you can easily obtain reversed characters or designs by writing them properly and copying them with the reverse side intact. There are no particular restrictions on how to draw letters or designs on the transparent sheet 1-, and you can use a felt-tip pen, a ballpoint pen, a fountain pen, a brush, or a known writing instrument.
For example, if you want to write with a pencil, etc., such as water-based ink, black ink, paint, or oil-based ink that cannot be used in daily life, you can copy it onto a transparent film using a copying machine as described above. Moreover, it is also possible to use a printed material as in the conventional method.

The base material used in the present application is not particularly limited as long as it can be subjected to mold release treatment, is compatible with the copying mechanism of an electronic copying machine, and can serve as a support for toner for a copying machine, but it is preferable that the base material be released. Paper or synthetic resin film that has been subjected to mold treatment.

To perform a mold release treatment on such a base material, a commercially available mold release treatment agent 1 such as a silicone resin, a fluorine resin, a polyolefin resin, or a wax may be coated on the base material such as paper, or an olefin A method of laminating a fecal material film such as a silicone-based, silicone-based, or fluorine-based toilet fat film is used.

It is not necessary to use a specified electronic copying machine for use in the present application, and any commercially available electronic copying machine for office use can be used. Furthermore, by using a color electronic copying machine, it is also possible to produce one color or multicolor characters and one pattern. When copying characters and designs onto a base material that has been subjected to mold release treatment using an electronic copying machine, if the original plate has been drawn with inverted characters etc. from the beginning, what is necessary is to copy the drawn letters, etc. of the original plate In other words, set the original in the same way as for normal copying, but if you draw regular characters and designs on a transparent sheet, the characters and designs will be in contact with the glass plate of the copying machine. In this case, it is necessary to set the original plate in a non-contact direction, that is, in the opposite direction to normal copying, and to set the base material so that the copy is made on the release-treated surface of the base material.

The reversely copied thermal transfer base material obtained in this way is brought into contact with a desired position of a desired transfer target substrate and heated and pressed to thermally transfer the characters and designs onto the transfer target substrate, but at this time the heating temperature It is necessary to heat the base material to a temperature higher than the softening temperature of the release agent treated with the base material or the binder of the toner for copying machines, and preferably to a temperature near the melting point. In addition, the pressing force varies depending on the material of the substrate to be transferred, and in the case of a substrate that is elastic and has an uneven pattern on the surface, such as a golf ball, the uneven portion is changed using an indenter that approximates the external shape of the substrate. 4 = It is necessary to pressurize until it is shaped and becomes flat, usually 500
It is desirable to apply a pressure of ν. In the case of a highly rigid transfer target substrate, transfer is possible even with a pressure of about 50 to 200 degrees. The presser to be used is a metal such as iron and a heat-resistant rubber-like elastic material such as silicone rubber or urethane rubber.
It is preferable to stack sheets with a thickness of one field so that the elastic body is in contact with the substrate to be transferred.

This will be specifically explained below by giving examples.

(Example) Example 1 Write English letters using oil-based ink on transparent cellophane paper with a thickness of 5 μm, and place the English letters side up on ## manufactured by Fuji Xerox Co., Ltd.
It was set on a glass plate for setting base paper in a 4150 type electronic copying machine. Next, release paper EKIOQD manufactured by Kokusaku Kako was inserted into a cassette for PPC paper to be copied with the release-treated side facing up, and the start button was pressed to copy English letters in reverse on the release paper.

The reversed English character portion of the thermal transfer base material thus obtained was cut into a rectangular shape and pressed against the outer surface of a commercially available golf ball so that the English character side was in contact with the outer surface of the golf ball. Using a 3m-thick piece of silicone rubber as a presser, the iron plate was heated to 180°C and a pressure of 5009 was applied for 1 second using a press. Letters identical to English letters were clearly thermally transferred from the concave portions to the convex portions of the dimples (irregular pattern) of the golf ball.

Example 2 A photograph published in a magazine was once copied onto a transparent polyester resin film using a conventional method, and then the photo was reversely copied in the same manner as in Example 1 to obtain a thermal transfer base material. Next, this thermal transfer base material was stacked on a 5IlI11 thick plate of polyethylene terephthalate resin EMC310 manufactured by Toyobo Co., Ltd. so that the transfer surface was in contact with the plate, and heated for 1.5 seconds on an iron plate heated to 190°C.
When thermal transfer was carried out under a pressure of 0.0 cm, a pattern corresponding to the shading of the photograph was transferred onto the polyethylene terephthalate 1~board side.

(Effects of the Invention) As is clear from the results of the above examples, the method of the present invention does not require a plate-making printing process such as gravure printing or silk printing as in the prior art, and can be generally used over a wide range of applications. By simply using a widely available electronic copying machine for office use, it is possible to print not only handwritten signatures but also designs, letters, pictures, photographs, etc. that can be obtained as printed matter into desired plate-like or three-dimensional shapes. It is now possible to thermally transfer onto objects.

After transferring letters and designs like a golf ball, when used for actual play, the ball can be further coated with clear paint to protect the transferred letters, etc.

Regarding the transferability of characters and designs by the method of the present invention,
Images obtained by temporarily fixing toner onto a JI-type substrate using heat using an electronic copying method have not been elucidated physically or chemically, but it is possible to produce images by applying a temperature even higher than the fixing temperature. It is conceivable that the image may be transferred to another material again.

Transfer to materials with poor adhesion, such as polyethylene terephthalate, may be possible because the components contained in toner for electronic copying fuse with polyethylene terephthalate at a specific temperature and pressure range. Seem.

The thermal transfer of the present invention can be applied even if the substrate to be transferred is cloth-like, and it has the potential to be applied to things such as adding handwritten names to T-shirts and sports shirts, making it an extremely useful technology industrially. can.

Claims (1)

[Claims] An original plate with the desired characters and designs reversed is created, and then the characters and designs are printed on the treated surface of the release-treated base material using an electronic copying method.
A thermal transfer method comprising copying a pattern onto a thermal transfer base material, bringing the thermal transfer base material into contact with a desired position of a transfer target base material, and heating and pressing the base material.