JPH02253990A - Material to be printed - Google Patents

Abstract

PURPOSE:To obtain a material that can easily exhibit an originality using a conventionally general-purpose thermal transfer printer by a method wherein a retransfer layer consists of a thermoplastic resin having a specific melting temp. or alternatively the thermoplastic resin and specific parts by weight or less of an adhesion improver per 100 pts.wt. of the resin, and a substrate is made of a fibrous mat substrate. CONSTITUTION:A retransfer layer consists of a thermoplastic resin having a melting temp. of 60-250 deg.C or alternatively the thermoplastic resin and 100 pts. wt. or less of an adhesion improver per 100 pts.wt. of the resin, and a substrate is made of a fibrous mat substrate. The thickness of the retransfer layer is determined to be 3-200 mum. In principle, the transferable layer printed with images or patterns is thermally transferred to a final transfer object with the printing surface opposed thereto. Thus, the rear of the printing surface becomes a final surface. From the standpoint of beauty, it is preferable that the thickness of the layer is made as thin as possible. However, because a fibrous rough surface, e.g. cloth, is especially mainly used for the transfer object, a layer thickness is determined to be 3mum or more, and pref. 5 mum or more for obtaining a fastness and a stability of printing at the time of retransfer. With a layer thickness of more than 200mum, the sharpness of the printed object is lowered, and a texture is deteriorated when a cloth or the like is used as the transfer object. A layer thickness of 60mum or less is more desirable.

Description

DETAILED DESCRIPTION OF THE INVENTION Field of the Invention The present invention relates to a printing medium provided with a layer that can be retransferred to another substrate by heating. In particular, the transfer image obtained by first thermally transferring onto the retransferable layer using a thermal transfer printer, typewriter, word processor, etc., is further transferred onto the final transfer object by heating. Regarding printing objects that can be printed.

BACKGROUND OF THE INVENTION In recent years, printing and printing devices such as printers, typewriters, and word processors using a thermal transfer method have been developed, and are widely available on the market, ranging from small personal use devices to business use devices. To perform printing by thermal transfer, a thermal transfer ink ribbon is brought into close contact with a specified printing paper, a specified heating element of a thermal head having a large number of heating elements is heated, and thermal transfer is performed via the support of the thermal transfer ink ribbon. transfer the ink elements to the printing paper. This method is widely used in word processors, and is the most familiar output method for consumers because it is easy to maintain and color. In addition, an electric heat-sensitive transfer method has also been put into practical use as a similar method.

Furthermore, printers are being used not only as information devices but also for other purposes, such as computers, etc.
Examples include color hard copies that output graphics or home video images onto paper or the like. Such copies select arbitrary input images and are used for record-keeping like photographs, as well as outputting desired images and designs, and are being developed into the field of design and the field of expressing so-called originality for individuals. Furthermore, it is also possible to apply glue to the print that is output at this time, or to print on a pre-glued print and then re-attach it to a desired area to create a fashionable effect. There is. Conventionally, so-called hot-melt materials have been used as materials to be pasted onto rough surfaces such as fabrics, and images and designs have mostly been pre-printed ready-made ones; It is hard to say that the originality of this work is being demonstrated. Therefore, there has been a long-awaited material that can easily express originality using a general-purpose thermal transfer printer.

A solution to the problem - The present invention provides an image-printed body comprising a base material and a retransfer layer provided on the base material, wherein the retransfer layer has a melting temperature of 60 to 25
It consists of a thermoplastic resin at 0°C, or the thermoplastic resin and an adhesion improver in an amount of up to 100 parts by weight per 100 parts by weight of the resin, and the base material is a fibrous matte base material. The object of the present invention is to provide an object to be printed.

As the /iJ (hereinafter referred to as retransfer layer) which can be transferred by heating, a material having a melting temperature of 60 to 250° C. is employed. If the melting temperature is less than 60° C., the retransfer layer will melt when printed using a normal thermal transfer printer, and will no longer be able to accept the transferred ink, resulting in a disordered print. Furthermore, the storage stability of the object to be printed itself is also lowered. On the other hand, if the melting temperature exceeds 250° C., it is not practical because the heat source capacity may be insufficient during retransfer of the print onto the final transfer member, or problems may arise in the heat resistance of the support.

It also causes disturbances in printing ink. A more preferable melting temperature of the retransfer layer is 65 to 180°C.

The thickness of this retransfer layer is 3 to 200 μm.

The transferable layer on which images and designs are printed is, in principle, thermally transferred with the printed side facing the final transfer object, and the back side of the printed side becomes the final surface. Therefore, from an aesthetic point of view, the thinner the layer is, the better, but the layer thickness is 3 μm in order to ensure robustness, retention of prints during retransfer, and especially since rough fibrous surfaces such as fabrics are the main objects to be transferred. The thickness is preferably 5 μm or more. If the layer thickness exceeds 200 μm, the sharpness of the printed matter will decrease, and if the object to be transferred is cloth or the like, the so-called texture will deteriorate. Therefore, the layer thickness is more preferably 60 μm or less.

Specific materials used for such a retransfer layer include thermoplastic resins with high film-forming properties and high heat-sensitive adhesive properties;
For example, polyalkylenes such as polyethylene and polypropylene, ethylene-vinyl acetate copolymers, polyvinyl acetate, ionomer resins, acrylic polymers, ethylene-ethyl acrylate copolymers, ethylene-acrylic acid copolymers, polyvinyl chloride, Vinyl chloride-vinyl acetate copolymer, polyvinyl ether, polyvinyl acetal, polyvinyl butyral, polyvinyl alcohol, polyvinylpyrrolidone, polyester, polyurethane, polyamide, fibrous polymers such as ethyl cellulose, nitrocellulose, cellulose acetate, chlorinated rubber, natural rubber, etc. These rubber-based polymers may be used alone or in combination of two or more.

Here, in order to provide greater adhesiveness during retransfer to the final transfer object, adjust the cohesive force of the binder, or improve the adhesiveness with the base material, 100 parts by weight of the above thermoplastic resin is added. Other resins, such as petroleum resins, rosins, hydrogenated rosins, rosin esters, ketone resins, phenolic resins, etc., or one or more of them, or melting point,
As a heat sensitivity improver that adjusts melt viscosity and improves heat sensitivity, waxes consisting of one or more types of vegetable, animal, mineral, petroleum, synthetic wax, resin wax, etc., or phosphorus are used. One or more selected from plasticizers such as acid esters and phthalate esters, oils and/or oils, surfactants, etc. can be used in combination, and the retransfer formed in this way The layer is further filled with fillers such as kaolin, talc, and titanium oxide, and metals such as zinc stearate, to the extent that the practical sharpness of the print is not impaired, in order to adjust the film strength and prevent stains and blocking. Inorganic or organic powders such as soaps may also be incorporated. Furthermore, in order to bring out even more originality, it is possible to mix colored pigments, dyes, metal foils, etc.

The fibrous mat substrate used in the present invention is a fabric sheet entangled with fibrous materials. Examples of such a base material include processed products of natural, organic, and inorganic synthetic fibers, but any material may be used as long as it can withstand heat during transfer. Specific examples include natural fibers such as paper, cotton, linen, and silk, synthetic fibers such as polyester, polyamide, and polyurethane, and woven fabrics and nonwoven fabrics made of glass fibers.

During printing with a printer, the base material not only provides support as photographic paper, but also serves as a spacer between the hot press and the hot press during transfer of the printed matter, and prevents welding to the press side. Further, since the press side is a rough surface, if the final transfer surface is rough, it becomes easy to press the transfer layer onto the transfer surface. Further, the matte base material must be made of a transparent, white or lightly colored fibrous material, and must not hide the printed image. Note that the color of this mat itself may be appropriately selected and used as one pattern.

The thickness of the base material may be appropriately selected depending on the type of printer used. That is, when using a general-purpose printer, the total thickness of the retransfer layer and the base material thickness is limited due to running restrictions, and as a result, the base material thickness is preferably 2 to 300 Itrn. On the other hand, there is no such restriction for types such as handy printers.

The object to be printed according to the present invention is coated or laminated onto a substrate according to known means.

Example Next, the present invention will be explained in more detail with reference to Examples.

The present invention is not limited to this, and may be modified as appropriate without departing from the gist of the present invention.

For example, the present invention mainly targets rough surfaces as transfer objects in order to further express originality, but it may also be applied to smooth surfaces.

Examples 1 to 4 Ethylene-vinyl acetate copolymers (EV'A) having different melting temperatures shown in Table 1 were coated with nylon nonwoven fabric (thickness 1.
1. The film was extrusion laminated using a die to a thickness of 20 μm on a paper (Oμ glass), and processed into sheets of A4 size to obtain an image-receiving paper. Commercially available printer (Rupo J manufactured by Toshiba Corporation)
When characters, etc. were printed on the Evaflex image-receiving paper using a printing press (W90F n ), the results shown in Table 1 were obtained.

We also tried using various thermoplastic resin materials such as polyethylene, polyester, and polyamide, as well as using commercially available general-purpose printers from various companies, but as shown in Table 1, none of them had a melting temperature of 60°C or higher. Stable prints were obtained with the second method.

When the above transfer material was transferred to a T-shirt, the nylon nonwoven fabric base material was integrated with the transfer layer, and the sharpness of the pattern was sufficiently ensured.

Example 5 A polyester film (melting temperature: 250° C., thickness: 1211 cm) was melt-laminated on thin paper (thickness: 100 μg) to produce an image-receiving paper. Examples 1-
When characters were printed in the same manner as in Example 4, the printing was performed well. Hot press the obtained image onto paper (260
After heating and retransfer using 1. The printing was severely distorted.

Examples 6 to 8 The EVA (vinyl acetate content (hereinafter referred to as VA
Each image-receiving paper was prepared using a 14-fold flattened paper (Mr: 3.5) with varying layer thicknesses, and printing was carried out in the same manner as in Examples 11-5. The resulting image was printed on a white cotton shirt.
When the image was transferred at 0° C., the results shown in Table 2 were obtained.

Fruit: Blood Examples 9 to 11 As shown in Table 3, the above EVA (VA14
% by weight, Ml 3.5), and aliphatic saturated hydrocarbon resins were blended in various proportions as a viscosity or cohesive force modifier for the transfer layer during melt transfer to prepare image receiving papers. Printing was performed in the same manner as in the example. When this transfer material was used to transfer onto a white cotton T-shirt at 160°C, the results shown in Table 3 were obtained.

The object to be printed of the present invention is provided with a fibrous matte base material having predetermined characteristics as the substrate of the object to be printed, so that it is possible to obtain desired prints using a commercially available thermal transfer printer. I can,
This can be easily retransferred onto a rough fibrous surface such as cloth by heating, and more originality can be expressed. Additionally, the printing quality is strengthened by the base material, making it highly reliable for industrial use.

Claims (2)

[Claims] (1) An object to be printed consisting of a base material and a retransfer layer provided on the base material, wherein the retransfer layer has a melting temperature of 60 to 250°C.
or the thermoplastic resin and the resin 1
1. An object to be printed comprising up to 100 parts by weight of an adhesion improver per 00 parts by weight, and the substrate is a fibrous matte substrate. (2) The object to be printed according to claim 1, wherein the retransfer layer has a thickness of 3 to 200 μm, and the base material has a thickness of 2 to 300 μm.