KR20010001795A - Heat transfer printing sheet - Google Patents

Abstract

PURPOSE: A reception paper for thermal transfer report is provided, which reception paper makes the image such as a photo emit the fragrance after the dye transcription. CONSTITUTION: The reception paper for thermal transfer report comprises a base material; a dye reception layer coated on the one side of the base material; and an adhesive layer coated on the other side, wherein the adhesive layer comprises 10-100 parts by weight of fragrance and 100 parts by weight of resin. The base material is selected from wood-free paper coated with polyestersulfone, polyimide, cellulose acetate, copolymer of vinyl alcohol and acetal, polyethylene terephthalate or polyethylene, and synthetic paper prepared from polypropylene and polyester.

Description

Heat transfer printing sheet for incense-dissipating thermal transfer recording

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a fragrance divergence thermal transfer recording paper, and more particularly, by adding an appropriate amount of fragrance in manufacturing a thermal transfer recording paper, a conventional thermal transfer recording paper is used to remove dyes or the like from a thermal transfer recording ribbon. While it was limited only to a medium to be embodied, the present invention relates to a fragrance emitting thermal transfer recording paper that has given functionality to continuously emit fragrance in images such as photographs after dye transfer.

As a method of recording a color image, an electrophotographic method, an inkjet method, a thermal transfer method and the like are applied. Among them, the thermal transfer recording method has been applied to a wide range of fields since there is no noise during printing and easy maintenance of the device. This thermal transfer method was widely used in office automation equipment such as facsimile machines and copiers in the early years, and has recently been extended to the field of printing IDs or printing images that are electrically expressed from video cameras through printers. It is becoming.

Thermal transfer is largely divided into a sublimation type method and a melt type method. First, in the sublimation type method, the transfer layer is made of a thermal sublimable dye and a binder resin, and is called a dye diffusion type in such a manner that only a dye is transferred to a card in proportion to the thermal energy applied by the thermal element to form an image. Since the amount of salts transferred is controlled in proportion to the thermal energy applied to the sublimation type, it is easy to express continuous gray levels in the transferred image, and mainly yellow, magenta, cyan, etc. Color films belong to this class. On the other hand, in the melting method, the transfer layer is heat-melt, and the transfer layer is melted by the heat applied by the thermal element and transferred to the card and then solidified again. In this melt type, all the resin in the coating layer is transferred to the card, which corresponds to black or an image protection film.

In general, to obtain a photograph or color image, a thermal transfer recording ribbon that provides color and a thermal transfer recording paper that implements color are required.

First, the thermal transfer recording ribbon can be manufactured in the manner described above.

Further, the thermal transfer recording receiving paper is used as a medium for simply implementing a dye or the like from the thermal transfer recording ribbon, and a plastic card having a material such as polyvinyl chloride, polyethylene terephthalate, polyethylene coated white paper, polypropylene, poly Synthetic paper made from an ester may be used. As a photographic paper vending machine, polyethylene terephthalate or synthetic paper is mainly used as a recording receiving paper, rather than a card, in practical terms.

First, in order to be used as a thermal transfer recording paper, it is necessary to properly implement a color image to be transferred, to store the image in the long term, and to increase durability. Therefore, other resins and various additives are generally introduced to satisfy these requirements. In addition, in order for the recording paper to have a sticker function, one side of the paper must be adhesively adhered, which should not cause any problem during dye transfer.

In general, after the adhesive treatment, a release-treated transparent or opaque film or paper is applied.

Recording sites are disclosed in Korean Patent No. 92-10435, Korean Patent No. 93-16578, and Korean Patent No. 93-16579.

However, the above-described inventions focused solely on transferring and dyeing dyes in producing a thermal transfer recording paper. However, in recent years, with the rapid spread of digital cameras, users' demands are also increasing. Moreover, with the popularization of photosticker vending machines, more various functions are required beyond the simple functions of existing accommodations. Therefore, there is a need for a thermal transfer recording paper that has been added with a fragrance for manufacturing a recording paper, and has a function of continuously giving off a fragrance even after a photograph is output. There is no known reservoir yet.

As described above, the conventional thermal transfer recording paper is limited to a medium for simply implementing a dye or the like from the thermal transfer recording ribbon. Accordingly, the present invention provides a new fragrance emitting thermal transfer paper for imparting functionality that can continuously emit fragrance in images such as photographs after dye transfer by adding an appropriate amount of fragrance in the manufacture of the thermal transfer recording paper. Its purpose is to.

BRIEF DESCRIPTION OF THE DRAWINGS Fig. 1 is a cross sectional structural view of a fragrance divergence thermal transfer recording paper according to the present invention;

[Description of Symbols for Main Parts of Drawing]

1: dye receiving layer 2: base material

3: adhesion layer 4: film

In the present invention, a dye-transfer layer is coated on one side of a substrate, and an adhesive layer is applied on the other side of the substrate.

The adhesive layer is characterized in that the thermal transfer recording receiving paper contains 10 to 100 parts by weight of perfume based on 100 parts by weight of the resin used for the adhesive layer.

Referring to the present invention in more detail as follows.

The present invention has been used for a long time by a human being, and relates to a thermal transfer recording reservoir to which the fragrance is applied in various fields, from fancy products to pharmaceuticals.

As shown in FIG. 1, the recording paper of the present invention is a pressure-sensitive adhesive layer having a dye-receiving layer 1 having a color image on the front surface of the substrate 2 and a sticker on the opposite side thereof, as shown in FIG. (3) is applied and composed of a transparent or opaque film 4 laminated on the adhesive layer, which will be described in detail with reference to the drawings.

A) Description:

First, as the base material 2 of the recording paper for recording, polyester sulfone, polyimide, cellulose acetate, a copolymer of vinyl alcohol and acetal or a film such as polyethylene terephthalate, polyethylene coated white paper, polypropylene, and polyester are produced. Synthetic paper and the like can be used. In the case where synthetic paper is used as a base material, since the synthetic paper itself is easily deformed by heat, it is preferable to use synthetic paper laminated both on the upper and lower sides with white paper in the center for dimensional stability. At this time, it is preferable that the thickness of a base material uses the thing of the range of 5-1,000 micrometers normally.

B) dye receiving layer:

As a material of the dye receiving layer 1 applied to the entire surface of the substrate 2, a material having affinity with the dye to be transferred, a dye is well dispersed during the transfer process, and a good preservation of the dye after transfer should be used. However, such materials are preferably polyester resins, polyacrylate resins, polyvinylacetate resins, polycarbonate resins, polyurethane resins, polyamide resins, polyvinyl chloride resins, You may use resin etc. which have a bonding force.

In addition, the dye receiving layer 1 should be able to properly implement a color image to be transferred together with the resin, and since the image should be stored for a long time, other additives may be used to improve this.

First, polyethylene wax, Teflon, silicone oil, polymeric plasticizer, and the like may be added to improve release properties after transfer. In addition, a surfactant may also be used to disperse them, and titanium dioxide, calcium carbonate, clay, zinc oxide, and the like may be used to improve the whiteness of the resin, and a fluorescent dye may be added to impart formability. have. In addition, antioxidants or ultraviolet absorbers may be introduced to increase weather resistance. In this case, the content of the resin added to the dye receiving layer is preferably 10 to 40 parts by weight based on 100 parts by weight of the total dye receiving layer, which is not preferable if the color is less than the above range is poor in color realization, whereas This is because it is not economical to exceed the range, and it is not preferable because of poor color realization such as color bleeding. In addition, it is preferable that other additives are added in 0.1-20 weight part with respect to 100 weight part of resin added to a dye receiving layer.

The coating thickness of the dye receiving layer after applying and drying the dye receiving layer having the composition as described above is 0.5 to 10 g / ㎡ is appropriate, if the coating thickness is out of the above range is not preferable because there is a problem of poor color implementation.

C) adhesive layer:

As the resin of the adhesive layer 3 applied to the back of the substrate, a copolymer of alkyl acrylate and acrylic acid, acrylonitrile, acrylamide, ethylene and vinyl acetate copolymer, etc., which are generally used, are used. At this time, in order to have the adhesive force, the molecular weight of the resin used should be 100,000 or more, and the glass transition temperature is appropriately -25 to 75 ° C. In addition, the content of the resin added to the pressure-sensitive adhesive layer is preferably 10 to 50 parts by weight with respect to 100 parts by weight of the total pressure-sensitive adhesive layer, because when it exceeds the above range, the adhesive force becomes too strong and it is difficult to be practical. to be.

On the other hand, the most important feature in the present invention, the fragrance added to the pressure-sensitive adhesive layer may be used in capsule form for continuous fragrance divergence, may be used by dissolving the fragrance in alcohol or the like. As the fragrance, all the fragrances generally applied in other fields may be applied. Preferably, the fragrance is selected from jasmine, lavender, floral, potpourri, lilac, scent. At this time, the content of the perfume is preferably 10 to 100 parts by weight with respect to 100 parts by weight of the resin used in the entire pressure-sensitive adhesive layer, it can adjust the amount added according to the type of solubility or flavoring. Here, when the content of the fragrance is less than 10 parts by weight it is not possible to obtain the effect of adding the fragrance, on the other hand, when added in excess of more than 100 parts by weight, the fragrance acts as a plasticizer to flow out the adhesive, weakening the adhesive force Not desirable

Therefore, by adding an appropriate amount of fragrance in manufacturing the thermal transfer recording paper, the fragrance can be continuously emitted in images such as photographs even after dye transfer.

Here, the reason why the fragrance is added to the adhesive layer is that in producing a paper for recording the fragrance emitting sticker, the most important point is that the added fragrance must continually radiate the fragrance, and the adhesive layer to which the film or paper is added rather than the dye receiving layer. This is because the addition of the scent is suppressed by the film added to the adhesive layer, and the scent persistence is relatively excellent.

As for the coating thickness of the adhesion layer after apply | coating and drying the adhesion layer which has the above composition, 0.5-10 g / m <2> is the most suitable considering adhesive force and economical efficiency.

Hereinafter, the present invention will be described in more detail with reference to Examples, but the present invention is not limited by Examples.

Examples 1-3 and Comparative Examples 1-7

A dye receiving layer composition was prepared on one side of a 75 μm-thick polyethylene terephthalate (manufactured by Toyobo Co., Ltd., CN 75) with the composition and content shown in Table 1 below, and then applied using a bar coater. Dried for 30 seconds. At this time, the application amount after drying of the dye receiving layer composition was 4-5 g / m <2>.

Then, the pressure-sensitive adhesive layer composition was prepared by polymerizing at a temperature of 65 ° C. for 5 to 8 hours with the composition and content shown in Table 1 below, and adding a perfume to the content shown in Table 1 below, and then coating the dye receiving layer. It was applied to the other side of the substrate using a bar coater, and then dried in an oven at 100 ° C. for 30 seconds. At this time, the application amount after drying of the adhesion layer composition was 4-5 g / m <2>.

Then, a film was laminated on the adhesive layer to prepare a paper for thermal transfer recording.

The measurement of the degree of fragrance divergence of the prepared reservoir was carried out as follows. First, 40 panelists were selected, and each sample was scented at intervals of 5 minutes while covering the panelists' eyes, and each sample was measured three times at different positions. Averaged. The results are shown in Table 2 below.

As can be seen from the results in Table 2, the more the amount of flavor added, the better the degree of flavor divergence. In addition, it was found that when the fragrance was added to the adhesive layer (Examples 1 to 3) rather than when the fragrance was added to the dye receiving layer (Comparative Examples 2 to 5), the degree of fragrance dissipation was relatively excellent.

As described above, according to the present invention, by adding an appropriate amount of fragrance in producing a thermal transfer recording paper, it is possible to obtain the effect of continuously emitting fragrance in an image even after printing a photograph after dye transfer.

Claims (3)

In the paper for thermal transfer recording wherein a dye receiving layer is applied to one side of the substrate, and an adhesive layer is applied to the other side of the substrate, The adhesive layer is a thermal transfer recording paper, characterized in that 10 to 100 parts by weight of fragrance is contained with respect to 100 parts by weight of the resin used in the adhesive layer. The method of claim 1, wherein the substrate is selected from polyester sulfone, polyimide, cellulose acetate, a copolymer of vinyl alcohol and acetal, polyethylene terephthalate, polyethylene coated white paper, and synthetic paper made from polypropylene and polyester. Reservoir for thermal transfer recording. The paper according to claim 1, wherein the fragrance is selected from jasmine, lavender, floral, potpourri, lilac and pine scent, and is used in capsule form or dissolved in alcohol.