JPH06144449A - Envelope with aperture - Google Patents

Abstract

PURPOSE:To provide an aperture envelope for recording informations on a bearing body in the envelope, to be recorded, by printing directly from the aperture section of the aperture envelope. CONSTITUTION:An aperture envelope with an aperture section covered with a transparent film is of having a layer containing the one element or both the elements of the micro capsule compound (1) of colorless electron-dative and coloring organic-compound and heat-fusing substance of binder resin (2) in the internal section side of the envelope of the transparent film.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a windowed envelope, and more preferably to a windowed envelope capable of printing directly from the windowed portion of the envelope.

[0002]

2. Description of the Related Art At present, window envelopes (see FIG. 1) are often used for direct mail. However, the address, address, and other matters to be displayed in the window portion are all stamped out at another place so that the information comes to the window portion when inserted into the envelope. This means that the windowed part must be set in advance and the information must be printed, which is very complicated.

[0003]

SUMMARY OF THE INVENTION An object of the present invention is to provide a window-opening envelope capable of directly printing information necessary for the window-opening envelope from the window-opening portion instead of another location.

[0004]

That is, the present invention relates to a windowed envelope in which a windowed portion is covered with a transparent film, wherein the transparent film has (1) a colorless electron-donating coloration on the inside of the envelope. Organic compound microencapsulation and
(2) To provide a window-opened envelope having a layer containing either or both of a heat-fusible substance and a binder resin.

The window-opened envelope can enclose the paper coated with the color developer, insert the paper into the envelope, and print the information directly from the window-opened portion by the action of pressure or heat.

The colorless electron-donating color-forming organic compound used in the present invention is a leuco compound such as triphenylmethane type, fluorane type, spiropyran type, auramine type and phenothiazine type, for example 3,3-bis. (p-dimethylaminophenyl) -6-dimethylaminophthalide,
3,3-bis (p-dimethylaminophenyl) phthalide, 3
-(Np-tolyl-N-ethylamino) -6-methyl-
7- (N-phenylamino) fluorane, 2- {N- (3 '
-Trifluoromethylphenyl) amino} -6-diethylaminofluorane, 3-diethylamino-7-chlorofluorane, 6'-chloro-8'-methoxy-benzoindolino-spiropyran, benzoyl leuco methylene blue and the like. . These organic compounds are encapsulated in microcapsules.

Regarding the method for producing microcapsules, a method utilizing coacervation of hydrophilic colloid sol described in US Pat. Nos. 2,800,457 and 2,800,458, and British Patent 867,797. Issue 95
0,443, 989,264, 1,091,076
There is an interfacial polymerization method described in the above publications, and microcapsules produced by these methods are spray-dried and powdered.

The color-encapsulating organic compound microencapsulated product (1) is applied to a transparent film together with (2) a heat-fusible substance or a binder resin.

The heat-fusible substance used in the present invention is a waxy substance, for example, carnauba wax, montan wax, auricury wax, candelilla wax, skarkane wax, coconut wax, paraffin wax, microcrystalline wax. , Hoechst wax (OP, O etc.), Varico wax (WB wax), NPS wax, Rice wax, Low molecular weight polyethylene wax, Stearic acid, Palmitic acid, Myristic acid, Fatty acid amide (Stearamide), Ketone wax (Stearon) etc. However, the present invention is not limited to these. What is a heat-fusible substance?
It is a wax-like substance having a melting point of, and the wax-like substance refers to a substance that becomes a low-viscosity liquid by heating and melting, and becomes a crystalline solid again when cooled below the melting point. It does not mean just. The heat fusible substance preferably has a melting point of 30 to 12
It has a melting point of 0 ° C., more preferably 50-80 ° C. Three
If the melting point is lower than 0 ° C, there are defects such as scumming. On the other hand, if the melting point exceeds 120 ° C., there is a defect of defective copying.

The binder resin used in the present invention may be any one as long as it has good adhesiveness with the film,
Specifically, rosin-modified phenol resin, ketone resin,
Natural or synthetic polymer compounds such as polyamide resin, maleic acid resin, phenol resin, epoxy resin, alkyd resin, melamine resin, urea resin, nitrocellulose, ethyl cellulose, butyral resin, polyvinyl alcohol, gelatin, and shellac are used.

The above components (1) and (2) are coated on a transparent film by a conventional method. The coating method is, for example, (a heat-melting flexo method, a solvent gravure method, a solvent meyer bar method, an aqueous air knife method, an aqueous gravure method). The transparent film has a thickness of 10 to 70 μ, preferably 20 to 60 μ. If it is less than 10 μm, there is a defect of poor strength, and if it exceeds 70 μm, there is a defect of defective copying.

A heat-resistant protective layer may be formed on the side of the transparent film opposite to the layer coated with the dye capsule layer. Heat-resistant protective layer is generally used (silicone resin, acrylic resin, nitrocellulose, cellulose acetate, melamine resin, lubricant, etc.)
It consists of ingredients. This heat resistant protective layer is also formed by a known technique. The transparent film preferably has a haze value of 65 or less. If the haze value exceeds 65 (the transparency is low and the reading of characters becomes unclear), there is a drawback.

The window-opened envelope of the present invention can be obtained by covering the window-opened portion of the window-opened envelope with the transparent film coated with the colorless dye capsule obtained as described above. When printing from a windowed envelope, information is printed on the substrate by inserting a substrate coated with a color developer into the envelope and printing from the windowed portion by pressure or heat.

Examples of the color developer include clay minerals such as montmorillonite, attabargite, bentonite, clay and kaolin, and phenolic substances such as 4-t-butylphenol, 4-phenylphenol and 2,2-bis (p-hydroxyphenyl). Propane, 2,2-bis (p-hydroxyphenyl) butane, polycondensation product of 4-t-butylphenol and formaldehyde, α-naphthol, β-naphthol, or metal salt of salicylic acid derivative of 5-t-aluminalicylic acid Zinc salt, zinc salt of 5-phenylsalicylic acid, zinc salt of 5- (4-hydroxyphenyl) -salicylic acid, zinc salt of 3-methyl-5-phenyl-salicylic acid, zinc salt of condensate of salicylic acid and formaldehyde, etc. are useful. Is. Preference is given to mixtures of phenolic substances, such as 2,2-bis (p-hydroxyphenyl) propane and zinc salts of salicylic acid derivatives, especially zinc salts of 5- (4-hydroxyphenyl) -salicylic acid.

The above-mentioned color developer is applied by a generally known method after being mixed with a resin such as polyvinyl alcohol. For example (air knife method, Mayer bar method, gravure method) is performed. The base material to which the developer is applied is generally paper, but may be a plastic film or the like.

The relationship between the transparent film of the present invention and the support for printing information will be described with reference to FIG. On the inner side of the envelope of the transparent film, a coating liquid consisting of two components of the microencapsulated product (1) of the above-mentioned colorless electron-donating color-forming organic compound and a heat-fusible substance or binder resin (2) is applied to form a layer. To form. On the other hand, when the support is applied with a solution containing a color developer, pressure or heat is applied from the transparent film side where the color developer layer is formed. Will be printed.

[0017]

According to the present invention, there is no alignment or other defect which occurs when the information is printed only at another place and the already printed contents are put in the envelope as in the prior art. In addition, the perforated envelope of the present invention can directly print information from the perforated portion of the perforated envelope directly from the punching equipment such as a computer, which greatly simplifies the process.

[0018]

EXAMPLES The present invention will be described in more detail by way of examples. The invention should not be construed as limited to these examples.

Example 1 A solvent type ink solution was prepared according to the following formulation. Ingredients Weight part Dye capsule powder (containing 3,3-bis (P-dimethylamino) phenyl-6-dimethylaminophthalide) 30 Sazole wax 10 Ethylcellulose N-7 10 Ethanol 45 Water 5 A transparent film for blue color development was obtained.

Example 2 Paraffin wax 115 ° 60 Armide HT 5 Carnauba wax 15 Dye capsule powder (containing 3,3-bis (P-dimethylamino) phenyl-6-dimethylaminophthalide) 20 The above composition was heated and melted. Was prepared and coated by a hot-melt flexo method to obtain a transparent film for blue color development.

Example 3 Component parts by weight 3,3-bis (p-dimethylamino) phenyl-5 6-dimethylaminophthalide benzoyl leuco methylene blue 2 paraffin wax 115 ° 55 Armide HT 15 carnauba wax 23 A transparent film for blue color development was obtained by preparing and coating in the same manner as in 2.

Example 4 Component parts by weight 2- {N- (3'-trifluoromethylphenyl) 7 amino} -6-diethylaminofluorane paraffin wax 115 ° 50 Armide HT 5 carnauba wax 15 2- {N- (3 Microcapsules of -trifluoromethylphenyl) -23 amino)}-6-diethylaminofluorane The above formulation was prepared and coated in the same manner as in Example 2 to obtain a transparent film for black color development.

The above four transparent films were pressure-sensitive printed on a support coated with a color developer by a conventional method. As a result, the printed part had sufficient color development and was easily readable.

[Brief description of drawings]

FIG. 1 is a perspective view showing a windowed envelope according to the present invention.

FIG. 2 is a schematic view showing the relationship between the transparent film of the present invention and a support.

 ─────────────────────────────────────────────────── ─── Continuation of the front page (72) Inventor Kazuho Fujiwara 6-17-1, Kamitsumuro, Takatsuki-shi, Osaka Inside and outside Carbon Ink Co., Ltd.

Claims (5)

[Claims] 1. A window-opening envelope in which a window-opening portion is covered with a transparent film, wherein the transparent film has (1) a microencapsulated product of a colorless electron-donating color-forming organic compound and (2) ) A windowed envelope having a layer containing one or both of a heat-fusible substance and a binder resin. 2. The window-opened envelope according to claim 1, wherein the heat-fusible substance is a wax-like substance having a melting point of 30 to 120 ° C. 3. The windowed envelope according to claim 1, wherein the transparent film has a thickness of 10 to 70 μm. 4. The windowed envelope according to claim 1, wherein the transparent film has a heat-resistant protective layer on the front surface side of the envelope. 5. The windowed envelope according to claim 1, wherein the transparent film has a haze value of 65 or less.