JPH0781194A - Cassette having therein tape - Google Patents

Abstract

PURPOSE:To provide a cassette storing therein a tape for use in printing, which tape can produce a printing tape having a clear color, wherein the printing tape can closely reproduce a color of a pigment or a dyestuff when it is mounted to a tape printing device even if a supporter or a thermal color development layer is opaque. CONSTITUTION:A tape for use in printing is wound around a tape spool in a tape cassette, and in the tape, a release paper 6 is bonded to one surface of a base material sheet 4 through an adhesive layer 5. A thermal color development layer 3 is applied and formed on the other surface of the sheet 4, and a colored layer 2, wherein a pigment is dispersed or a dyestuff is dissolved, is formed on the layer 3. A protection layer 1 mainly composed of an room temp. setting type silicone resin wherein an ultraviolet absorbent is dispersed is applied onto the layer 2.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a tape storage for storing a printing tape used in a tape printer for producing a tape with characters by printing characters on the printing tape via a thermal head. The present invention relates to a cassette, and more particularly to a tape storage cassette that stores a colored printing tape.

[0002]

2. Description of the Related Art Conventionally, various kinds of tapes have been proposed as this kind of printing tape. Such a printing tape is generally formed by applying a thermosensitive coloring layer on a tape base material on a film. ing.

Examples of the thermosensitive coloring layer include crystal violet lactone (CVL) as described in US Pat. No. 2,712,507 or US Pat. No. 2,730,457. ) And other leuco dyes and organic acids such as phenolic compounds.

This thermosensitive coloring layer is capable of coloring by being heated via a well-known thermal head or the like.
As a result, characters and the like are colored and formed on the printing tape.

And, such a printing tape is used in a tape printer while being housed in a tape cassette,
When characters or the like are printed on the printing tape via a thermal head provided in the tape printing device, the thermal coloring layer is heated by the thermal head while sliding the thermal head and the printing tape relative to each other.

A protective layer for protecting the thermosensitive coloring layer is provided on the surface of the thermosensitive coloring layer, and the protective layer is formed in a colorless and transparent state so that the color of the thermosensitive coloring layer can be visually recognized through the protective layer. Has been done.

Some of the above-mentioned printing tapes are colored. Usually, the coloring printing tape contains a pigment or a dye on the surface of the support opposite to the surface on which the thermosensitive coloring layer is formed. It is colored with printing ink. Then, the color is visually recognized through at least three layers of the support, the thermosensitive coloring layer and the protective layer.

[0008]

However, the printing tape colored in this way faithfully reproduces the original color of the printing ink unless all layers of the support, the thermosensitive coloring layer and the protective layer are transparent. I can't. In particular, the thermosensitive coloring layer is usually translucent, and few have transparency. For this reason, when the thermosensitive coloring layer is semi-transparent like cloudy glass, the colored color becomes blurred and whitish when viewed through the semi-transparent layer, and the original color of the pigment or dye is seen. I can't.

The present invention has been made to solve the above-mentioned problems, and when it is mounted on a tape printer and used, even if the support or the thermosensitive coloring layer is opaque, a pigment or a dye is used. It is an object of the present invention to provide a tape storage cassette that stores a printing tape capable of producing a printing tape having a vivid color that can faithfully reproduce the color of the tape.

[0010]

To achieve the above object, a tape storage cassette of the present invention is a tape storage cassette which is detachably attached to a tape printer for printing characters on a long printing tape. Which has a cassette case and a tape spool rotatably arranged in the cassette case, and is peeled off around the tape spool via an adhesive layer formed by coating on one surface of the support body. Along with sticking paper, a thermosensitive coloring layer that can be colored by the heating element of the thermal head on the other surface of the support on which the pressure-sensitive adhesive layer is formed, and coloring by dispersing a pigment or dissolving a dye on the thermosensitive coloring layer. A printing tape in which a layer is laminated and a protective layer made of a transparent resin is laminated on the colored layer is wound.

Further, it is preferable that the protective layer contains a room temperature curable resin as a main component.

[0012]

In the tape storage cassette of the present invention having the above-mentioned structure, the printing tape wound on the tape spool is drawn out of the cassette case during printing, and characters and the like are printed on the printing tape via the thermal head. Is printed on. At this time, since the coloring layer is formed on the thermosensitive coloring layer of the printing tape, the color of the pigment or dye contained in the coloring layer is faithfully reproduced.

[0013]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described below with reference to the drawings.

First, the structure of the printing tape T according to this embodiment will be described with reference to FIG. FIG. 1 is a cross-sectional view schematically showing the printing tape T. One surface (lower surface in FIG. 1) of the base material sheet 4 which constitutes the support of the present invention is provided with a release paper 6 via an adhesive layer 5. Is attached. A thermosensitive coloring layer 3 is applied and formed on the other surface (upper surface in FIG. 1) of the base sheet 4, and a protective layer 2 is further formed on the thermosensitive coloring layer 3. In addition, the protective layer 2
A colored layer 1 containing a room temperature curable resin, in which a pigment is dispersed or a dye is dissolved, as a main component is applied thereon.

The thermosensitive coloring layer 3 is a leuco dye, a color developing agent which causes a color reaction with the leuco dye when heated to develop the leuco dye, and a color accelerating agent which accelerates the color developing reaction between these leuco dye and the color developing agent. , A binder for binding a leuco dye and a color developer, other pigments, auxiliaries and the like.

For example, leuco dyes applicable to the thermosensitive coloring layer 3 are usually colorless or slightly pale leuco dyes, and include the following.

(A) Triphenylmethane dye 3,3-bis (P-dimethylaminophenyl) -phthalide, 3,3-bis (P-dimethylaminophenyl) -6
-Dimethylaminophthalide (also known as crystal violet lactone), 3,3-bis (P-dimethylaminophenyl) -6-chlorophthalide, 3,3-bis (P-dibutylaminophenyl) phthalide (also known as malachite green lactone).

(B) Fluoran dyes 3-dimethylamino-6-methoxyfluorane, 3-dimethylamino-6-methyl-7-chlorofluorane, 3
-Dimethylamino-5-methyl-7-dibenzylaminofluorane, 3-diethylamino-7-chlorofluorane, 3-diethylamino-7-methoxyfluorane, 3
-Diethylamino-7-methylaminofluorane, 3-
Diethylamino-7-dibenzylaminofluorane, 3
-Diethylamino-7- (N-methylanilino) fluorane, 3-diethylamino-7-orthochloroanilinofluorane, 3-diethylamino-7- (3-fluoromethyl) phenylaminofluorane, 3-diethylamino-
7,8 Benzofluorane, 3-diethylamino-6-methyl-7-chlorofluorane, 3-diethylamino-6
-Methyl-7-anilinofluorane, 3-diethylamino-6-methyl-7-P-butylanilinofluorane,
3-diethylamino-5-methyl-7-dibenzylaminofluorane, 3-monophoryl-5,6 benzofluorane, 2-ethyl-6-methyl-7-anilinofluorane, 2-anilino-6-diethyla Monofluoran, 3
-(N-methyl-N-cyclohexylamino) -6-methyl-7-anilinofluorane, 3- (Np-tolyl-N
-Ethylamino) -6-methyl-7- (N-phenylamino)
Fluoran.

(C) Phenothiazine dyes benzoyl leuco methylene blue, 2,2 dimethyl leuco methylene blue, P-anisoyl leuco methylene blue, N-bivalyl leuco methylene blue, (d) rhodamine lactam dyes N-phenyl rhodamine β-lactam, arhodamine β-Salton.

(E) Spiropyran dyes Benzo-β-nastspiropyran, 1,3,3-trimethyl-6'-chloro-8'-methoxy-indolinobezospiropyran.

In addition, 2- [3,6-bis (diethylamino) -9- (o-chloroanilino) xanthyl] and lactam benzoate are applicable.

A phenolic compound is used as the developer, and the phenolic compound is liquefied or vaporized at room temperature or higher and reacts with the leuco dye to develop a color of the leuco dye. Examples of the phenolic compound include the following.

4,4'-isopropylidene diphenol, 4,4'-isopropylidene bis (2-chlorophenol), 4,4'-isopropylidene bis (2-methylphenol), 4,4'-isopropylidene Screw (2
-Tert-butylphenol), 4,4'-sec-
Butylidenephenol, 4,4'-cyclohexylidenephenol, 4-tert-butylphenol, 4-t
ert-octylphenol, 4-tert-octyl caracol, 4-phenylphenol (P-phenylphenol), 4-hydroxydiphenoxide, 2,2-
Bis (p-hydroxyphenyl) propane (also known as bisphenol A), 2,2-bis (p-hydroxylphenyl) butane, 2,2-bis (2,5-dibromo-4-hydroxyphenyl) propane, 2,2 '-Dihydroxydiphenol, 2,2'-methylenebis (4-chlorophenol), α-naphthol, β-naphthol, methyl-4-hydroxydibenzoate, benzyl-4-hydroxydibenzoate, ethyl-4-hydroxydibenzoate,
Propyl-4-hydroxydibenzoate, 4-hydroxy-acetophenol, novolac type phenol resin, halogenated novolac type phenol resin, and other phenol polymers.

Benzoic acid, salicylic acid, tartaric acid, gallic acid and the like.

Further, as the color accelerating agent, stearic acid amide, stearic acid methylenebisamide, oleic acid amide, barmitic acid amide, mackerel oleic acid amide,
Palm fatty acid amide and the like are applicable.

Further, the following compounds can be applied as the binder.

For example, polyvinylanicol, starch or its variants and derivatives, methylcellulose, methoxycellulose, hydroxyethylcellulose, carboxymethylcellulose, arabic gum, gelatin, casein, polyvinylpyrrolidone, polyacrylamide, polyacrylate, styrene / butadiene co-polymer. Water-soluble materials such as polymer, polyvinyl acetate, polyacrylic acid ester,
Alternatively, polystyrene, vinyl chloride-vinyl acetate copolymer, aqueous emulsion of polybutylmethacrylate, etc. may be used.

In addition, the thermosensitive coloring layer 3 includes white pigments such as talc, clay, silica, titanium oxide, urea formalin resin, various waxes, higher fatty acid metal salts, higher fatty acid amides, dispersants, lubricants, and defoamers. Auxiliary agents such as agents may be contained. The thermosensitive coloring layer 3 has a solid content of 2 to
20 g / m ^2, in particular, is desired to be applied and formed in the range of 5 to 10 g / m ^2.

Next, the coloring layer 2 is a thermosensitive coloring layer 3 formed by a solvent contained in a room temperature curable silicone resin solution described later.
It is provided as necessary in order to prevent the corrosion of the resin, and it is preferable to use various film-forming water-soluble resins as the resin constituting the colored layer 2. As the compound forming the colored layer 2, for example, polyvinyl alcohol, methyl cellulose, ethyl cellulose, carboxymethyl cellulose, hydroxyethyl cellulose, polyacrylamide, starch, gelatin, polyvinylpyrrolidone, methoxycellulose and the like can be used.
One kind or a mixture of two or more kinds thereof is used as the coloring layer 2.

Further, the coloring layer 2 is mainly intended to protect the thermosensitive coloring layer 3 from moisture, whereby the coloring layer 2 contains a waterproofing agent. Formalin, glyoxal, chrome alum, melamine, melamine formalin, polyamide resin, and polyamide epichlorohydrin resin can be applied as the waterproofing agent. The protective layer 2 has a solid content of 0.5 to 10 g / m ² , particularly 1 to 5 g / m ² .
^It is desirable to form the coating within the range of ² .

Examples of the pigment to be dispersed in the colored layer 2 include organic pigments and inorganic pigments usually used in printing inks, which have been subjected to a surface treatment so as to be easily dispersed in each resin.

The dye dispersed in the colored layer 2 includes
Xanthene dyes, coumarin dyes, merocyanine dyes, thiazine dyes, azine dyes, methine dyes, oxazine dyes, phenylmethane dyes, cyanine dyes, azo dyes, anchitraquinone dyes, pyrazoline dyes , Stilbene dyes, quinoline dyes and the like.

The protective layer 1 formed on the colored layer 2 is
This is a resin layer composed mainly of a room temperature curable resin, and solvent-based, water-based, or UV-curable resins can be used. Desirably, a room temperature curable silicone resin, a room temperature curable urethane resin or the like can be used.

As the room temperature curable silicone resin, there are room temperature curable resin type silicone, room temperature curable type rubber type silicone, etc. Specifically, various silicone coating agents (for example, Toray Dow Corning Silicone SR2410, SR2411, SE506
0, SE5070, SE1980) can be applied.

As the ultraviolet absorber dispersed in the protective layer 1, a benzotriazole derivative is suitable, and as the benzotriazole derivative, the following compounds are applicable. For example, 2- (5-methyl-2-hydroxyphenyl) benzotriazole, 2- [2-hydroxy-3,5-bis (α, α-dimethylbenzyl) phenyl] -2H-benzotriazole, 2- (3. 5-di-
t-butyl-2-hydroxyphenyl) benzotriazole, 2- (3-t-butyl-5-methyl-2-hydroxyphenyl) -5-chlorobenzotriazole, 2-
(3,5-di-t-butyl-2-hydroxyphenyl)
-5-chlorobenzotriazole, 2- (3,5-di-
Examples include t-amyl-2-hydroxyphenyl) benzotriazole and the like.

As the base material sheet 4 which is a base material of the printing tape T, a plastic film such as a polyethylene film, a polyamide film, a polyester film, a polypropylene film, a vinyl chloride film or a paper such as a high quality paper or a Japanese paper is used. It

As the pressure-sensitive adhesive constituting the pressure-sensitive adhesive layer 5, solvent-type acrylic pressure-sensitive adhesives, rubber-based pressure-sensitive adhesives, water-soluble pressure-sensitive adhesives, hot-melt pressure-sensitive adhesives, emulsion-based pressure-sensitive adhesives and the like are used. .

As the release paper 6, glassine paper, high-quality paper coated with silicon or polyethylene, or polyethylene terephthalate (PET) coated with silicon or polyethylene is preferably used.

1. Creation of Printing Tape T Next, a method of creating the printing tape T configured as described above will be briefly described.

To prepare a printing tape T from the above components, first, a dispersion of a leuco dye and a binder and a dispersion of a color developer and a binder are prepared, and each is mixed and stirred. Adjust the heat-sensitive color developing agent paint. The base sheet 4 is coated with such a heat-sensitive color developing agent paint by a coating device such as a bar, an air knife, a comma, a reverse roll, or a gravure roll.
And then dried with hot air to form the heat-sensitive color forming layer 3.

After that, a protective agent in which a pigment is dispersed or a dye is dissolved is applied on the thermosensitive coloring layer 3 by the above coating device and dried to form the coloring layer 2. This colored layer 2
Has a function of protecting the thermosensitive coloring layer 3 from the solvent when the solvent may affect the thermosensitive coloring layer 3 in the room temperature curable resin solution. Then, a room temperature curable resin solution in which an ultraviolet absorber is dispersed and contained is applied on the colored layer 2 and dried to form the protective layer 1. Further, the pressure-sensitive adhesive surface coated with the pressure-sensitive adhesive 5 on the release paper 6 is attached to the other surface of the base sheet 4. As a result, the printing tape T is created.

A specific method of producing the printing tape T will be described below.

(A) Base Material Sheet 4 As the base material sheet 4, a 38 μm thick polyester film (Crisper manufactured by Toyobo Co., Ltd.) was used.

(B) Preparation of Thermosensitive Coloring Agent Paint A solution and B solution having the following compositions are prepared.

[Liquid A] 1. Leuco Dye Crystal Violet Lactone 15 parts by weight 2. Binder 20% polyvinyl alcohol aqueous solution 50 parts by weight 3. Water 435 parts by weight [solution B] 1. Developer bisphenol A 60 parts by weight 2. Color forming accelerator 10 parts by weight of stearic acid amide 3. Binder 20% polyvinyl alcohol aqueous solution 100 parts by weight 4. Calcium carbonate 30 parts by weight 5. Water 300 parts by weight After preparing the liquids A and B having the above composition, the respective liquids A and B
The solutions are separately pulverized and dispersed in a ball mill for 24 hours, and the solutions A and B are sufficiently mixed and stirred to prepare a heat-sensitive color developing agent coating material.

(C) Application of heat-sensitive color developing agent coating The heat-sensitive coloring agent prepared as described above is applied to one surface of the base sheet 4 on a gravure roll so that the coating amount when dried is 5 g / m ^2. And then dried to form the thermosensitive coloring layer 3.

(D) Coating formation of colored layer 2 As a pretreatment for laminating a silicone resin on the thermosensitive coloring layer 3, polyvinyl alcohol (manufactured by Kuraray Co., Ltd.) and modified NB are used.
R (nitrile / butadiene rubber, manufactured by Takeda Pharmaceutical Co., Ltd.) and self-crosslinked acrylic emulsion (manufactured by Rohm Endhaas Co., Ltd.) were made into 20% aqueous solutions, and dye R-305 (Japan) was added to the polyvinyl alcohol aqueous solution. (Manufactured by Kayakusha Co., Ltd.) and 5 parts by weight of each aqueous solution are mixed to prepare a mixed solution, and the mixed solution is coated on the thermosensitive coloring layer 3 formed as described above to give a coating amount of 2 g when dried. / M
^It is applied by a gravure roll so as to be ^2, and then dried to form the protective layer 2. The colored layer 2 is colored with a dye color.

(E) Coating Formation of Protective Layer 1 Subsequently, in order to form the protective layer 1, a urethane resin solution mixed with a silicone resin having the following composition was prepared.

[Urethane Resin Solution] 1. Polyurethane (SANYO Kasei UA-90) 100 parts by weight 2. Polyurethane cross-linking agent (SCAT-24 manufactured by Sanyo Kasei Co., Ltd.) 1 part by weight 3. 3. Room temperature curable silicone resin (SR2411 manufactured by Toray Dow Corning Co., Ltd.) 30 parts by weight 4. UV absorber 2- (5-methyl-2-hydroxyphenyl) benzotriazole 3 parts by weight 5. Toluene 100 parts by weight After stirring and mixing the above respective compositions and further preparing a urethane resin solution in which the above pigments are dispersed, a gravure solution is applied onto the colored layer 2 so that the coating amount when dried is 2 g / m ^2. It is applied by a roll and then dried to form the protective layer 1. This protective layer 1 is colorless and transparent.

(F) Preparation of Release Paper 6 First, an adhesive having the following composition is prepared.

[Adhesive] 1. Fats and oils (oils and fats AS-2050 manufactured by one company) 100 parts by weight 2 parts by weight of oil and fat (oil and fat B-45 manufactured by one company) 3. Ethyl acetate 30 parts by weight After adjusting the pressure-sensitive adhesive by stirring and mixing the above components, a silicone-coated release paper 6 having a thickness of 60 μm formed on one side (70XT-032 manufactured by Fujimori Industry Co., Ltd.)
The pressure-sensitive adhesive layer 5 is formed by applying the pressure-sensitive adhesive agent to the silicone-coated surface of B) so that the pressure-sensitive adhesive amount is 20 g / m ² .

(G) Preparation of Printing Tape T The pressure-sensitive adhesive layer 5 of the release paper 6 prepared as described above is laminated on one surface with the thermosensitive coloring layer 3, the protective layer 2, and the coloring layer 1. It is attached to the other surface of the base sheet 4. As a result, the printing tape T is created.

2. Creation of Printing Tape Next, a method of creating a printing tape by using the printing tape T created as described above will be described with reference to FIGS.
Will be described with reference to. FIG. 2 is a plan view of the lower cassette case, excluding the upper cassette case of the tape cassette, and FIG.
FIG. 3 is a perspective view of a tape printer.

First, the printing tape T is attached to the tape cassette C.
When mounted inside, the printing tape T produced as described above is cut into a 12 mm width, and the tape is used as the tape spool 10.
The release paper 6 is wound around the periphery (both the outer diameter and the height are formed to 12 mm) so that the release paper 6 is on the outer side. The tape spool 10 is set in the lower cassette case 11 as shown in FIG. 2 (the tape spool 10 is rotatably held by the lower cassette case 11 and an upper cassette case (not shown)).

In the lower cassette case 11, the printing tape T is fed from the tape spool 10 to the tape guide portion 1.
The printing tape T is guided to the opening 13 via 2 and is fed by a tape feeding roller 14 which is fitted to a tape feeding shaft 21 of a tape printing device 20 described later to feed the printing tape T. To be Also, the opening 1
3, a thermal head 15 (which is fixed to a cassette mounting portion 22 of a tape printing device 20 described later and is provided with a plurality of heating elements in the vertical direction) is arranged.

Further, a roller support member 16 (supported by the tape printer 20 so as to be rotatable about a shaft 19) is arranged opposite to the thermal head 15. The roller supporting member 16 includes a platen roller 17, and
The pressure contact roller 18 is rotatably supported, and when printing characters or the like on the printing tape T by the thermal head 15, the roller support member 16 is rotated counterclockwise around the shaft 19. It As a result, the platen roller 1
7 is pressed against the thermal head 15, and the thermal head 1
5, characters and the like are reliably printed, the pressure contact roller 18 is pressed against the tape feed roller 14, and the printing tape T after printing is sent to the outside of the tape cassette C by the cooperation of both rollers 18, 14. It is a thing.

The tape cassette C is set in the tape mounting portion 22 provided at the rear (right side in FIG. 3) of the tape printer 20 (see FIG. 3). After that, the heating elements of the thermal head 15 are selectively energized to print the tape T for printing.
By heating the thermosensitive coloring layer 3 from the side of the colored layer 1, a coloring reaction occurs in the thermosensitive coloring layer 3 to form a desired character or the like in the thermosensitive coloring layer 3.

The printing tape T on which characters and the like are printed in this manner is discharged to the outside of the tape cassette C by the cooperation of the tape feed roller 14 and the pressure contact roller 18. The discharged printing tape T is cut by a cutter, and the printing tape T is used as a printing tape.

In this printing tape, when the release paper 6 is peeled off, an adhesive surface of the adhesive layer 5 appears on the surface of the base sheet 4 opposite to the surface on which the thermosensitive coloring layer 3 is formed. It can be attached to a desired position by the adhesive force of the agent layer 5. That is, it is possible to attach a brightly colored printing tape on which desired characters are printed at a desired position.

As described above in detail, in the printing tape T according to this embodiment, the coloring layer in which the pigment is dispersed or the dye is dissolved is formed on the thermosensitive coloring layer 3 formed on one surface of the base sheet 4. 2 is provided, and the protective layer 1 whose main component is the room temperature curable resin in which the ultraviolet absorber is dispersed and contained is provided on the colored layer 2, so that the colored layer 2 is a colorless and transparent protective layer 1.
It can be seen through only, and the color of the pigment or dye can be faithfully reproduced, and the color looks vivid.

Therefore, the thermosensitive coloring layer 3 does not necessarily need to be transparent, and the types of dyes, developers, color accelerators, binders and the like which are preferable for forming the thermosensitive coloring layer 3 increase,
The degree of freedom in selection is improved. Furthermore, the base material sheet 4 does not need to be transparent as well, and the types of materials that can be used for the base material sheet 4 increase, and the degree of freedom in selecting the base material sheet 4 increases.

Further, since the colored layer 2 is formed between the thermosensitive coloring layer 3 and the protective layer 1, even when the urethane resin solution forming the protective layer 1 is applied, the colored layer 2 is not exposed to the urethane resin solution. It is possible to reliably prevent the contained solvent from adversely affecting the thermosensitive coloring layer 3.

The protective layer 1 is formed of a room temperature curable silicone resin as a main component, and the thermal head 15 is printed on the protective layer 1 while relatively sliding on the protective layer 1. Printing can be performed while smoothly sliding relative to the tape T for printing.
Even with such sliding, the life of the thermal head 15 can be extended without wearing the thermal head 15.

Further, since the protective layer 1 contains the ultraviolet absorber dispersed and contained therein, both the recording portion and the non-recording portion of the heat-sensitive recording sheet can be effectively protected from ultraviolet rays, and at the same time, non-recording. It is also possible to realize a heat-sensitive recording sheet which can prevent discoloration (yellowing) in a portion and can be stably used for a long period without causing deterioration of characters and the like.

The present invention is not limited to the above embodiment, and various modifications can be made without departing from the spirit of the present invention.

[0066]

As described above, the present invention faithfully reproduces the color of a pigment or dye when it is attached to a tape printer and used, even if the support or the thermosensitive coloring layer is an opaque layer. It is possible to provide a tape storage cassette that stores a printing tape capable of producing a printing tape having a vivid color. Further, since it is not always necessary to make the support and the thermosensitive coloring layer transparent, the number of materials preferable for forming such a support and the thermosensitive coloring layer is increased, and the degree of freedom in selection is improved.

[Brief description of drawings]

FIG. 1 is a cross-sectional view schematically showing a printing tape.

FIG. 2 is a plan view of a lower cassette case excluding an upper cassette case of the tape cassette.

FIG. 3 is a perspective view of a tape printer.

[Explanation of symbols]

 1 Colored layer 2 Protective layer 3 Thermosensitive coloring layer 4 Base material sheet 5 Adhesive layer 6 Release paper 10 Tape spool 11 Lower cassette case 15 Thermal head 20 Tape printing device C Tape cassette

Claims (2)

[Claims] 1. A tape storage cassette detachably mounted on a tape printing device for printing characters and the like on a long printing tape, the cassette case and a rotatably arranged inside the cassette case. And a release tape attached to the periphery of the tape spool via an adhesive layer formed by coating on one surface of the support, and the other surface of the support on which the adhesive layer is formed. , A thermosensitive coloring layer capable of coloring by a heating element of a thermal head, and a pigment dispersed on the thermosensitive coloring layer,
Or while laminating the colored layer in which the dye is dissolved,
A tape storage cassette characterized in that a printing tape in which a protective layer made of a transparent resin is laminated on the colored layer is wound. 2. The tape storage cassette according to claim 1, wherein the protective layer contains a room temperature curable resin as a main component.