JPH1148689A - Pressure sensitive transfer-type tape for promoting memory efficiency - Google Patents

Abstract

PROBLEM TO BE SOLVED: To improve readability of a black printed part at the time of transferring a coating film to the printed part and concealability of the printed part transferred with the film seeing through from a sheet exhibiting a color having complementary color relation to color of the film by preventing striking through a writing surface of ink and unevenness of a coating surface. SOLUTION: The pressure sensitive transfer type tape is provided as a memory efficiency-promoting learning implement. And, the tape comprises a colored layer containing at least colorant, binder resin and surfactant as main components, and a pressure-sensitive adhesive layer containing pressure-sensitive adhesive resin as a main component. In this case, as the colorant in the colored layer, dye or pigment having a particle size of 0.01 to 5 μm is contained by 0.1 to 20 wt.%. And, a thickness of the colored layer is 5 to 30 μm.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a pressure-sensitive transfer tape for memorizing efficiency, which is used to memorize characters, figures, tables, and other matters written in a document.

[0002]

2. Description of the Related Art Heretofore, a marker-type learning device which is commercially available of this type for improving memory efficiency has been known. This is done by coloring one color of the complementary color pair with a marker on the black print portion to be memorized written in the document, and covering the colored portion by covering the sheet with the transparent ground color of the other color of the complementary color pair. It darkens the black printed portion to make it difficult to read.

[0003]

However, in the case of the above-mentioned marker type which is commercially available, if the black printed portion described in the document is colored, the ink of the marker permeates the document and stains the back side of the document. There are drawbacks.
Further, the colored portion often becomes uneven and visually unsightly. Furthermore, since the color density of the colored part is low with the marker, the black printed part colored with one color of the complementary color pair is completely unreadable under the perspective of a sheet with a transparent ground color of the other color of the complementary color pair It is extremely difficult to do so.

[0004]

SUMMARY OF THE INVENTION In order to solve the above-mentioned problems, the present invention provides a pressure-sensitive transfer tape as a learning tool for improving the memorization efficiency.
Having a colored layer mainly composed of a binder resin and a surfactant, and a pressure-sensitive adhesive layer mainly composed of a pressure-sensitive adhesive resin,
A dye or a particle size of 0.01 to 5 as a colorant in the colored layer;
It is characterized in that the pigment contains 0.1 to 20% by weight of a μm pigment, and the thickness of the coloring layer is 5 to 30 μm.

[0005]

Embodiments of the present invention will be described below in detail.

The pressure-sensitive transfer tape for memorizing efficiency enhancement according to the present invention comprises a plastic film or a paper-based substrate provided with a coloring layer containing at least a coloring agent, a binder resin and a surfactant as main components. Further, a pressure-sensitive adhesive layer containing a pressure-sensitive adhesive resin as a main component was provided on the colored layer.

The colored layer in the pressure-sensitive transfer tape for memorizing efficiency enhancement of the present invention is mainly formed of a coloring agent, a binder resin and a surfactant, and if necessary, an antioxidant,
Light stabilizers and the like can also be used.

Although a dye or a pigment can be used as a coloring agent in the colored layer, it is preferable to use a pigment in consideration of fading due to ultraviolet rays.

[0009] Coloring agents used when the colored layer is colored red include azo-based, triphenyl-methane-based, stilbene-based, indigo-based red dyes, red-bodied pigments, chrome vermillion, cadmium red, and the like. Red inorganic pigments, or β-naphthol, naphthol AS, pyrazolone, benzidine, condensation azo, poorly soluble azo,
Red organic pigments such as easily soluble azo, anthraquinone, thioindigo, perinone / perylene, quinacridone, dioxazine, isoindolinone, and diketopyrrolopyrroles.

Examples of the colorant used when the colored layer is colored blue include azo, nitroso, stilbene and indigo blue dyes, blue inorganic pigments such as ultramarine blue, navy blue and cobalt blue, and phthalocyanine. And anthraquinone-based blue organic pigments.

Examples of the coloring agent used for coloring the colored layer to green include azo-based, triphenyl-methane-based, nitroso-based, stilbene-based, and indigo-based green dyes, and chromium oxide green and spirene green. Green inorganic pigments and green organic pigments such as phthalocyanine and anthraquinone are exemplified.

Examples of the coloring agent used for coloring the colored layer to yellow include nitro, azo, stilbene and indigo yellow dyes and yellow such as titanium yellow, graphite, chromium vermillion and cadmium yellow. Inorganic pigments, or acetoacetic acid arylides, pyrazolones, condensed azos, isoindolinones, flavanthrones, anthrapyrimidines, acylaminos, quinophthalones,
Yellow-based organic pigments such as pyrocholine-based and fluoripin-based pigments are exemplified.

Examples of the pigment used for coloring the colored layer in orange include nitro, azo, stilbene, and indigo orange dyes, and orange inorganic pigments such as graphite, chromium vermillion, and cadmium orange. Orange organic pigments such as acetoacetate allylide type, pyrazolone type, condensed azo type, isoindolinone type, flavanthrone type, anthrapyrimidine type, acylamino type, quinophthalone type, pyrocholine type and fluoripin type.

In consideration of the performance of the coloring layer, the particle size of the pigment used as the coloring agent is 0.01 to 5 μm.
Preferably it is 0.05 to 1 μm. When the particle size of the pigment is 0.
If the thickness is less than 01 μm, the cutability of the colored layer is reduced, resulting in poor transfer. On the other hand, if it exceeds 5 μm, the smoothness of the colored layer is impaired and the wear resistance is reduced.

Further, in the transfer type tape for learning memorization efficiency, a black printed portion coated with one color of a complementary color pair by transferring the tape is usually legible.
Considering that the sheet having a transparent ground color of the other color of the complementary color pair needs to be unreadable under fluoroscopy, the weight% of the colorant in the colored layer is 0.1-20%, Preferably it is 0.5 to 15%. If the weight% of the colorant in the colored layer is less than 0.1%, the color density of the tape exhibiting one color of the complementary color pair is low, so that the color of the sheet having a transparent ground color of the other color of the complementary color pair is low. It is necessary to increase the color density of the sheet in order to render the sheet unreadable under fluoroscopy, and it is extremely difficult to read the black printed portion to which the tape has not been transferred under fluoroscopy of the sheet.
On the other hand, if it exceeds 20%, the colored layer is colored more than necessary, so that the black printed portion, to which the tape having one color of the complementary color pair is transferred, has a transparent ground color of the other color of the complementary color pair. It is extremely difficult to read even if it is not below.

As the binder resin in the colored layer, any binder can be used as long as it can form a good coating film in consideration of the transferability, cutting property, and crack resistance of the coating film. Specific examples include acrylic resin, vinyl resin, polyester resin, urethane resin, coumarone resin, and styrene-butadiene copolymer.

Any surfactant can be used as the surfactant in the coloring layer as long as it forms a good coating film in consideration of the dispersibility of the coloring agent in the coloring layer and the improvement of the smoothness of the coating film. Specific examples include a fluorine-based surfactant, an ester-based surfactant, and a polymer-based surfactant.

The thickness of the colored layer in the present invention is 5 to 30 μm.
m, and preferably 8 to 20 μm. If the thickness of the colored layer is less than 5 μm, the color density of the tape exhibiting one color of the complementary color pair is low, so that the sheet having a transparent ground color of the other color of the complementary color pair becomes unreadable under a see-through view. It is necessary to increase the color density of the sheet, and it is extremely difficult to read the black printed portion on which the tape has not been transferred under the see-through of the sheet. On the other hand, if it exceeds the 30 μm range, the color density of the colored layer becomes unnecessarily high, so that the black print portion on which the tape having one color of the complementary color pair is transferred has a transparent ground color of the other color of the complementary color pair. It is extremely difficult to read even if the sheet is not seen through. In addition, it becomes a factor that the cutting property of the coating film is reduced.

As the pressure-sensitive adhesive layer in the present invention, any pressure-sensitive adhesive resin used for the pressure-sensitive adhesive layer can be used as long as it has sufficient adhesiveness to paper. Specifically, acrylic,
Rosin type, polyurethane type and the like can be mentioned.

[0020]

DESCRIPTION OF THE PREFERRED EMBODIMENTS Hereinafter, the present invention will be described in detail with reference to embodiments.

[Table 1]

[Table 2]

With respect to Example 1 in Table 1, the raw materials were first compounded in the above-described amounts, and then the ink prepared by sufficiently dispersing the pigment using a ball mill or the like was applied to a silicon-treated thin paper using an applicator. A colored layer was provided by coating and drying, and a pressure-sensitive adhesive prepared using a pressure-sensitive adhesive resin was further applied and dried on the colored layer to form an adhesive layer, thereby producing a pressure-sensitive transfer type tape. The pressure-sensitive transfer type tape was pressure-sensitively transferred to printed matter, and the state of the coating film was observed. Based on the above procedure, the thickness of the colored layer is 1 μm, 3 μm, 8 μm, 10 μm,
A coating film was formed to have a thickness of 0 μm or 25 μm.

Table 3 shows the results of the comparative study.

[Table 3] …: Very good ○: Good △: Not very good ×: Bad Here, A in Table 3 indicates legibility of the black printed portion when the formed coating film was transferred to the black printed portion, B Indicates the concealing property of the black printed portion to which the coating film has been transferred under a see-through view of a green sheet having a complementary color relationship with the color of the pigment, and C indicates the cutting property of the coating film.

According to Table 3, the readability of the black printed portion and the color of the coated film of the transfer tape for memorizing efficiency enhancement when the coating film formed with the colored layer having a thickness of 8, 10 or 20 μm was transferred to the black printed portion were transferred. The sheet having a color complementary to that of the sheet is excellent in concealing property and cutting property of the black printed portion to which the coating film is transferred under the see-through condition.

Next, inks were prepared in the same manner as in Examples 1 and 2 in Table 1 and Comparative Examples 1 and 2 in Table 2, and coated so that the thickness of the colored layer was uniformly 10 μm. A film was formed.

Table 4 shows the results of the comparative study.

[Table 4] Here, in Table 4, A is the legibility of the black printed portion when the formed coating film is transferred to the black printed portion, and B is the transparent coating film of a green sheet having a complementary color relationship with the pigment color. The concealing property of the transferred black printed portion is shown.

According to Table 4, in Examples 1 and 2, the readability of the black print portion when the formed coating film was transferred to the black print portion, and the see-through of a sheet having a color complementary to the color of the coating film were observed. The black print portion to which the coating film was transferred was very excellent in concealment.

The cutability and transferability of the formed coating film were also good.

Next, with respect to Examples 1 and 2 in Table 1 and Comparative Example 3 in Table 2, inks were prepared by first mixing the raw materials according to the above mixing amounts and then sufficiently dispersing the pigment using a ball mill or the like. Is applied and dried with an applicator on a siliconized thin paper to provide a colored layer having a thickness of 10 μm.
Further, a pressure-sensitive adhesive prepared using a pressure-sensitive adhesive resin was applied on the colored layer and dried to form an adhesive layer, thereby preparing a pressure-sensitive transfer type tape. The pressure-sensitive transfer type tape was pressure-sensitively transferred to printed matter, and the state of the coating film was observed.

When the coating films formed in Examples 1 and 2 and Comparative Example 3 were transferred to a black print portion, the legibility of the black print portion and the perspective of a green sheet having a complementary color relationship with the color of the pigment were observed. The concealability of the black printed portion to which the coating film was transferred was very excellent. However, the coating film formed in Comparative Example 3 was poor in abrasion resistance and slightly cracked.

Next, with respect to Example 3 in Table 1, the raw materials were first compounded in the above-described amounts, and the ink prepared by sufficiently stirring using a sand mill or the like was applied to a silicon-treated thin paper using an applicator. Coated and dried to a thickness of 10
A colored layer having a thickness of μm was provided, and a pressure-sensitive adhesive prepared using a pressure-sensitive adhesive resin was applied on the colored layer and dried to form an adhesive layer, thereby producing a pressure-sensitive transfer tape. The pressure-sensitive transfer type tape was pressure-sensitively transferred to printed matter, and the state of the coating film was observed.

When the coating film formed in Example 3 was transferred to the black printing portion, the readability of the black printing portion was transferred, and the coating film was transferred under a transparent color to a green sheet having a complementary relationship with the color of the dye. The concealing property of the black printed portion was very excellent.

[0032]

[Table 5]

In Examples 4 and 5 in Table 5, the raw materials were first compounded according to the above-mentioned amounts, and then the ink prepared by sufficiently dispersing the pigment using a ball mill or the like was placed on siliconized thin paper. Applying and drying with an applicator, providing a colored layer having a thickness of 10 μm, further applying and drying a pressure-sensitive adhesive prepared using a pressure-sensitive adhesive resin on the colored layer, providing an adhesive layer, and forming a pressure-sensitive transfer type. Created a tape. The pressure-sensitive transfer type tape was pressure-sensitively transferred to printed matter, and the state of the coating film was observed.

When the coating films formed in Examples 4 and 5 were transferred to a black printing portion, the readability of the black printing portion, and a transparent coating film of an orange sheet having a complementary color relationship with the colors of pigments and dyes. Was very excellent in the concealing property of the black print portion to which was transferred.

[0035]

According to the present invention, in order to improve the drawbacks such as strike-through of ink in writing and unevenness of the coated surface which are observed in the marker type learning device for memorizing efficiency, the learning device for memorizing efficiency enhancement is a pressure-sensitive transfer type. The pressure-sensitive transfer type tape contains a dye or a pigment having a particle size of 0.01 to 10 μm as a colorant in the colored layer of the pressure-sensitive transfer type tape in an amount of 0.1 to 20% by weight, and has a thickness of 5%. ３０30 μm, prevents ink strike-through in writing, unevenness of the coated surface, and legibility of the black printed portion when transferred to the black printed portion of the coating, color of the coating The concealing property of the black printed portion to which the coating film is transferred under a see-through color of the sheet having a color complementary to that of the sheet can be improved.

Claims (6)

[Claims] 1. A pair of a readable black printed portion covered with a tape colored in one color of a complementary color pair, and a sheet having a transparent ground color of the other color of the complementary color pair, wherein In the pressure-sensitive transfer tape for memorizing efficiency such that the tape coating part darkens and the black printed part becomes unreadable, the above-mentioned tape is colored with at least a coloring agent, a binder resin and a surfactant as main components. And a pressure-sensitive adhesive layer containing a pressure-sensitive adhesive resin as a main component. In the coloring layer, a dye or a pigment having a particle size of 0.01 to 5 μm as a coloring agent is 0.1 to 20% by weight. And the thickness of the colored layer is 5
A pressure-sensitive transfer type tape for improving the memorization efficiency, which has a thickness of from 30 to 30 μm. 2. The pressure-sensitive transfer tape for memorizing efficiency enhancement according to claim 1, wherein the colorant is a mixture of at least one or two or more red pigments or dyes. 3. The pressure-sensitive transfer tape for memorizing efficiency enhancement according to claim 1, wherein the colorant is at least one kind of a blue pigment or a dye or a mixture of two or more kinds. 4. The pressure-sensitive transfer tape for memorizing efficiency enhancement according to claim 1, wherein the colorant is a mixture of at least one kind of a green pigment or a dye. 5. The pressure-sensitive transfer tape for memorizing efficiency enhancement according to claim 1, wherein the colorant is a mixture of at least one kind of yellow pigments or dyes. 6. The pressure-sensitive transfer tape for memorizing efficiency enhancement according to claim 1, wherein the coloring agent is at least one kind of orange pigment or dye or a mixture of two or more kinds thereof.