JPS5876054A - Transfer sheet for food - Google Patents

Abstract

PURPOSE:The titled sheet, prepared by printing a pattern with an edible ink on the surface of a transfer base material coated with a solid fat or oil which is a solid at ordinary temperature without the bleeding or stanining of the printed surface by the surface contact. CONSTITUTION:A molten fat or oil or edible wax which is a solid at ordinary temperature id is uniformly cooled and hardened on the surface of a transfer base material, e.g. a polyethylene film, and a pattern is then printed on the surface with an edible ink prepared by adding a binder, e.g. a viscosity increasing agent or an edible resin such as gum arabic, to a solution or dispersion of a food dye, e.g. caramel dyestuff. The printed surface is then brought into the close contact with a material to be printed, and the pattern is then transferred to the material by a means, e.g. the adhesion by pressure or heat, to give a clear printed pattern having a stable printed surface stable to the external force, e.g. contact or friction.

Description

DETAILED DESCRIPTION OF THE INVENTION The present invention relates to a food transfer sheet. More specifically, the pattern to be transferred is printed with edible ink on the surface of a transfer base coated with oil or fat that is solid at room temperature or edible wax, and after the printed surface is brought into close contact with the substrate, it is pressed or heated. The present invention relates to a transfer sheet for food that is characterized by the ability to transfer images.

Traditionally, in the food industry, in order to give food freshness and beauty, simple patterns were formed on the surface of food using a branding iron or food coloring was added, but in recent years, with the diversification of dietary habits, Food products with intricate designs became popular. Pattern formation by printing has come to be used as a means for this purpose. Methods for forming patterns by printing on the surface of foods include direct printing using planography, letterpress, intaglio, screen, plate, etc., or transfer printing.

Regarding the application of transfer printing to food, for example, there is a method of printing using water-based or oil-based liquid edible ink on the transfer substrate, but since the ink does not set, there is a risk of bleeding after transfer or staining of the printed surface due to surface contact. The disadvantage was that it was easy for this to occur. Another known method is to print using a hot-melt edible ink containing solid oil as a binder component and transfer it by heat. The disadvantages were that color tones had to be limited, and temperature control to control viscosity during printing was surprisingly cumbersome and difficult.

The present inventors have arrived at the present invention as a result of intensive research to improve the above-mentioned drawbacks.

That is, the present invention relates to a food transfer sheet in which a pattern is printed with edible ink on the surface of a transfer base coated with room temperature solid oil or fat or edible wax.

Room-temperature solid oil or fat or edible wax referred to in the present invention
is coconut oil, palm oil, palm kernel, edible hydrogenated fats and oils obtained by hydrogenating these, edible waxes such as candelilla wax, or a mixture of fats and oils and edible waxes selected from the above, preferably with a melting point of 20°C or higher. Any temperature may be used as long as the temperature is 35°C or higher.

The transfer substrate in the present invention is preferably polyethylene, but paper or metal may also be used as long as it has a surface that does not penetrate molten room temperature solid oil or edible wax during coating and is hygienic.

The coating method for room temperature solid oil or edible wax is to use an applicator, bar coater, roll coater, etc. after melting.
Any method may be used, and there are no particular restrictions on the coating thickness.

Edible ink is an edible water-based ink that is made by dissolving or dispersing food coloring in water and adding a thickener or edible resin to adjust the viscosity to a level that allows printing. There are edible oil-based inks that are dissolved or dispersed in fats and oils, and edible emulsion inks that are made by emulsifying food pigments, edible oils, and water.

As a method for printing the above-mentioned edible ink, in addition to the screen printing method, other printing methods such as flexographic printing and offset printing may be used.

The food coloring used in the edible ink can be appropriately selected from conventionally known synthetic food colorings and natural food colorings. Examples of synthetic food colors include Food Red No. 2,
Examples include Food Red No. 3, Food Yellow No. 4, Food Yellow No. 5, Food Green No. 3, Food Blue No. 1, Food Blue No. 2, and pigments obtained by forming these into aluminum lakes. Examples of natural food colors include caramel color, gardenia color, monascus color, annatto color, beet red color, anthocyanin color, paprika color, cochineal color, steel chlorophyll and its sodium salt, β-carotene color, and the like. can. It is also possible to add solid edible oils or fats or water-soluble polymeric substances such as gum arabic, sodium salt of carboxymethyl cellulose, methyl cellulose, and sodium alginate as binder components of the edible ink.

In addition, in the present invention, a desired pattern is printed with edible ink, and before the edible ink dries, edible powder is sprinkled on the surface of the printing target to make it adhere to the printed image area and set. Multicolor printing can be easily achieved by printing with an edible ink that exhibits a different color from the above after removing the powder.

The food transfer sheet of the present invention can be set on a coating film even with liquid oil-based ink or W10 type emulsion ink, which could not be used with transfer inks conventionally due to lack of ability to set at room temperature. It has the advantage of being fully usable.

Furthermore, in foods printed with the transfer sheet of the present invention, the coating film is integrated with the impression area during transfer and transferred to the temporary printed food, so that 1) complete transfer and clear printing can be obtained;

2) The six printing surfaces are stable against external forces such as contact and friction.

Excellent features such as Garuru.

Applicable foods according to the present invention include foods with a printable surface, in particular non-aqueous foods such as oily or solid foods with low water content, such as chain gum, caramel, chocolate, cheese, etc.

The first implementation will be described below.

Example 1 Melting point 45°C on polypropylene film 40μ thick
After melting hydrogenated coconut oil at 6o0c, it was coated with an applicator to a thickness of 20μ and cooled and assimilated.

The thus obtained coating surface was coated with water, caramel color chart, and salad oil as main components and emulsified with sucrose fatty acid ester, and the viscosity was 10.000 c. The design is screen printed using a 165 mesh stainless steel screen plate and the transfer sheet is used. Finally, commercially available white chocolate was melted in a bath at 32°C and poured onto the printed surface of this transfer sheet.
After cooling and solidifying at o0c for 30 minutes, the polypropylene film was peeled off to obtain white chocolate with Lm photoprint.

The printed surface of the white chocolate obtained by this method was clear and glossy, and since the printed surface was not exposed on the surface, the printed surface was strong against external influences such as friction. .

Examples 2 and 3 Transfer-printed white chocolate was obtained in the same manner as in Example 1 using the transfer substrate shown in Table 1, oil or wax, and edible ink.

Table 1 Example 4 Commercially available salad oil 5 was applied to the surface of the polyglopylene film coated with the hydrogenated oil obtained in Example 1 to a thickness of 20μ.
Using an edible oil-based ink with a viscosity of 5,000 CpP, which was prepared by kneading 50 g of Liofre Soche Brown Mn1 (polyphere brown pigment, trademark of Toyo Ink Mfg. Co., Ltd.) with 0 g of
Screen print the pattern on a 5-mesh stainless steel screen plate, immediately sprinkle 100 mesh passes of sugar powder, let it adhere to the printed area, set it, remove excess sugar powder from the unattached areas, and transfer to the transfer sheet. He's a samurai. Finally, the transfer sheet was placed in close contact with the chewing gum, heated to 50°C, cooled to room temperature, and the cooling polypropylene film was peeled off, leaving the chewing gum with the transfer print on it.

The printed surface of the chewing gum made by this method was clear and glossy and coated with oil, so it did not bleed due to water.

Example 5 Hydrogenated coconut oil having a melting point of 45°C was melted on a polyethylene film having a thickness of 40μ at 60°C, and then coated with an applicator to a thickness of 20μ and solidified by cooling. Using the edible oil-based ink used in Example 4, a pattern was screen printed on the surface of the Goaty 4 obtained in this way using a 165 mesh stainless steel screen plate, and immediately
00 Metsushibasu sugar powder was sprinkled and set on the printing image tightening area, and the excess sugar powder on the unattached areas was removed with a brush. Next, on this printed surface, an edible oil-based ink with a viscosity of 5.000 cps, which was mixed with 50 g of commercially available salad oil and 50 g of Rio Fresh Red B-177 (beet red colorant, manufactured by Toyo Ink Co., Ltd.), was added. , 165 mesh stainless steel screen plate, with a different pattern than the one above, screen-printed in brown and red.This is a transfer sheet full bone.

Next, melt commercially available white chocolate at 32°C and pour it onto the printed surface of this transfer sheet, and then melt it at 20°C for 30 minutes.
After cooling for a minute, the polyethylene film was peeled off.
Transfer-printed white chocolate was obtained.

Comparative Example 1 A transfer sheet was printed directly on a 40 μm thick polypropylene film using the O/W type negative edible emalun ink used in Example 1 in the same manner as in Example 1, and then a transfer sheet was stretched.

When commercially available white chocolate was transfer-printed using this transfer sheeter in the same manner as in Example 1, the transferability of the printed line area was poor and the proboscis was of no value.

Comparative Example 2 Example 4 directly onto a 40μ thick polypropylene film
A transfer sheet was printed using the 1dE ink used in Example 4 in the same manner as in Example 4.

When Ichi #I white chocolate was transfer printed in the same manner as in Example 1 using this transfer sheet, the printed image did not harden and the printed image easily shifted when touched.

patent applicant Toyo Ink Manufacturing Co., Ltd.

Claims (1)

[Claims] Food transfer sheet made by self-printing a pattern with edible ink on the coating surface of the rabbit transfer base material (coached with room temperature solid oil or edible wax).