JPH0986060A - Thermal copy method - Google Patents

Abstract

PROBLEM TO BE SOLVED: To record data on wide paper in the presence of a customer by using a small-sized printer easy to carry. SOLUTION: In a thermal copy method applying heat to thermal recording paper consisting of upper and lower sheet papers 1, 2 to form images on both of the surface not facing to the lower sheet paper 2 of the upper sheet paper 1 and the surface facing to the upper sheet paper 1 of the lower sheet paper 2, the thermal recording paper is folded double at the central part thereof so that the lower sheet paper 2 becomes inside to be passed through the thermal printer to form an image to one surface of the twofold thermal recording paper and subsequently turned over so as to form an image on the separate surface of the twofold thermal recording paper to be passed through the thermal printer.

Description

Detailed Description of the Invention

[0001]

FIELD OF THE INVENTION The present invention relates to a thermal copying method. In particular, the present invention relates to a thermal copying method for copying two wide-sized sheets using a thermal printer.

[0002]

2. Description of the Related Art Generally, documents such as contracts are usually prepared by using a paper having a wide width, for example, so-called B4 size or A3 size paper.
In addition, due to the nature of the contract, generally, one copy is created for the other party, one copy for this side and one copy for this side. For example, in an automobile sales contract, etc., after visiting the customer's house etc. and refining the contents to some extent, the salesman brought it back to the company and made a contract, then returned to the customer again. Work such as visiting and stamping a seal is being performed.

However, such a method gives the customer sufficient time to reconsider, and when the customer creates a contract and visits the customer again, the customer reconsiders the contract as a result of the reconsideration. And so on.

In order to prevent this, a method is conceivable in which a portable computer and a punching tool are brought, a contract is prepared in front of the customer, and the contract is completed on the spot.
However, in general, contracts use wide-width paper as described above, so a very large machine is required to print such wide-width paper at one time. Carrying this is not realistic. So, nowadays, we make a contract in front of the customer,
No work is done to get a seal on the spot.

[0005]

SUMMARY OF THE INVENTION The present invention provides a heat-sensitive recording method which eliminates the above inconvenience, makes it possible to create a contract in front of the customer, and immediately imprint a seal on the spot. To do. When the present invention is used, it becomes possible to create a contract in front of the customer, and the labor of the salesman to return to the company and visit the customer is also eliminated.

[0006]

DISCLOSURE OF THE INVENTION The present invention is directed to a heat-sensitive recording paper consisting of upper and lower paper sheets, by applying heat with a thermal printer, the surface not facing the lower paper sheet of the upper paper sheet. And a thermal copying method of forming an image on both the surface of the lower sheet and the surface of the lower sheet facing the upper sheet, the thermal printer is formed by folding the thermal recording sheet in two so that the lower sheet is located inside. After forming an image on one side of the half-folded thermal recording paper through the sheet, the sheet is turned over so as to form an image on the other side of the half-folded thermal recording sheet, and then passed through a thermal printer. Provide a copy method.

As shown in FIG. 1, the thermal recording paper used in the present invention comprises an upper sheet 1 and a lower sheet 2. This thermal recording paper can form an image on both the surface of the upper leaf paper 1 that does not face the lower leaf paper and the surface of the lower leaf paper that faces the upper leaf paper by applying heat with a thermal printer. it can.

Two types of heat-sensitive recording paper capable of forming an image in this manner are specifically considered, one of which is a thermal transfer type carbon ink, and the other of which is an electron-donating color-forming organic material. It consists of a combination of a compound and an organic acidic substance that develops the color. The thermal transfer carbon ink is usually composed of a mixture of a pigment or dye and a substance having heat fusibility (specifically, wax). Wax type is 30 ~ 110 ℃
It preferably has a melting point of Examples of dyes or pigments used in thermal transfer carbon inks are carbon black, cyanine blue, cyanine green, carmine red, shunkasia red, lake red, hansa yellow, permanent yellow, navy blue, nigrosine, methyl violet, Victoria blue, rhodamine red. Is mentioned. Examples of waxes used in the thermal transfer carbon ink include paraffin wax, microcrystalline wax, polyethylene wax, kahana wax, candelilla wax, auricury wax, montan wax, beeswax, and behenic acid. In addition to the above dyes and waxes, the thermal transfer carbon ink may contain polyamide resin, vinyl resin, phenol resin, maleic acid resin, petroleum resin, ketone resin, nonionic surfactant, mineral oil,
The thermal transfer carbon ink is naturally known, and is disclosed in JP-A-60-
104393, JP 60-137193, JP 61-51386, and JP 62-21.
It is described in detail in Japanese Patent No. 591 or the like.

In the other embodiment described above, a colorless electron-donating color-forming organic compound (hereinafter referred to as a color former), an organic acidic substance (hereinafter referred to as a color developer) that develops a color when this compound is heated, and a heat-sensitive material. It is formed by combining with a fusible substance.

The color former used in the present invention is a leuco form 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-dimethylaminofluorane, 3-diethylamino-7-chlorofluorane, 6'-chloro-8 '
-Methoxy-benzoindolino-pyrrolospirane, benzoyl-leuco-methylene blue and the like can be mentioned.

As the color developer, other phenolic substances such as monalilonite, attabargite, bentonite, clay, kaolin and other viscous minerals such as 4-t-butylphenol, 4-phenylphenol, 2,2-bis (p-
Hydroxyphenyl) propane, 2,2-bis (p-hydroxyphenyl) butane, polycondensation product of 4-t-butanephenol and formaldehyde, α-naphthol, β-naphthol, or metal salt of salicylic acid derivative 5-t −
Aluminum salicylic acid zinc salt, 5-phenylsalicylic acid zinc salt, 5- (4-hydroxyphenyl) -salicylic acid zinc salt, 3-methyl-5-phenyl-salicylic acid zinc salt, salicylic acid-formaldehyde condensate zinc salt Etc. are useful. Preference is given to mixtures of phenolic substances such as 2,2-bis (p-hydroxyphenyl) propane with zinc salts of salicylic acid derivatives, in particular zinc salts of 5- (4-hydroxyphenyl) -salicylic acid.

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, Myristyrene acid, Fatty acid amide (Stearamide, etc.), Ketone wax (Stearon) However, the present invention is not limited to these. The heat fusible substance is 30 to 110.
A wax-like substance having a melting point of ℃, a 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 only ester.

Combinations of the above-mentioned color former, developer and heat-fusible substance, coating methods, etc. are known, for example, Japanese Examined Patent Publication No. 6-51422, Japanese Utility Model Publication No. 62-43770, and Japanese Patent Laid-Open No. 57-. It is described in detail in Japanese Patent Publication No. 96896.

The method of recording on the upper leaf of the thermal recording paper of the present invention from the thermal printer is a method using a thermal transfer ribbon or a combination of the above-mentioned color developing body and the color developing body on the lower leaf of the upper paper. You may form by applying to the surface which is not contacting. Methods for applying these thermal transfer ribbons, color developing bodies and color developing bodies are also known.

In the present invention, the heat-sensitive recording paper is used by folding it in two so that the lower leaflet is on the inner side at the center as shown in FIG.

The surface of the folded thermosensitive recording paper, which does not face the lower paper of the upper paper, is exposed on the entire surface.

In the present invention, the half-folded thermosensitive recording paper is first printed on only one side using the printer 3, as shown in FIG. The surface printed here is described as print surface A. Here, the half-folded thermosensitive recording paper once printed is inserted into the thermal printer as shown in FIG. 3 so that the surface on the back side of the printing surface A is printed by the thermal printer 3, and is newly printed. This print is referred to as print surface B. By this method, both upper and lower upper leaf papers are printed, and at the same time, the lower leaf paper is also heat-sensitively recorded on the surface in contact with the upper leaf paper. Here, when one side is being printed, heat is less likely to be transferred to the other side, and coloring of the other side does not normally occur.

When the recording paper having the recording information formed by the method described above is spread, two sheets of a contract such as a wide size document can be formed. One of them is given to the customer to be stamped, and the document is completed.

[0019]

According to the method of the present invention, even a wide-sized document can be printed using a paper of half the size, and a very small printer to carry is sufficient. Moreover, since the document is created and stamped in front of the customer, it is a very useful thermal recording method without facing the reduction of power and the change of contract due to this.

[Brief description of drawings]

FIG. 1 is a diagram schematically showing a folded state of a thermosensitive recording paper of the present invention.

FIG. 2 is a diagram schematically showing a state in which an image is first printed according to the present invention.

FIG. 3 is a diagram schematically showing a state in which the recording paper obtained from FIG. 2 is passed through the printer again.

[Explanation of symbols]

 1 ... Top paper, 2 ... Bottom paper, 3 ... Printer.

─────────────────────────────────────────────────── ───

[Procedure amendment]

[Submission date] December 15, 1995

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] 0008

[Correction method] Change

[Correction contents]

Two types of heat-sensitive recording paper capable of forming an image in this manner are specifically considered, one of which is a thermal transfer type carbon ink, and the other of which is an electron-donating color-forming organic material. It consists of a combination of a compound and an organic acidic substance that develops the color. The thermal transfer carbon ink is usually composed of a mixture of a pigment or dye and a substance having heat fusibility (specifically, wax). Wax type is 30 ~ 110 ℃
It preferably has a melting point of Examples of dyes or pigments used in thermal transfer carbon inks are carbon black, cyanine blue, cyanine green, carmine red, schenka sia red, lake red, hansa yellow, permanent yellow, navy blue, nigrosine, methyl violet, Victoria blue, rhodamine red. Is mentioned. Examples of waxes used in the thermal transfer carbon ink include paraffin wax, microcrystalline wax, polyethylene wax, kahana wax, candelilla wax, auricury wax, montan wax, beeswax, and behenic acid. In addition to the above dyes and waxes, the thermal transfer carbon ink may contain polyamide resin, vinyl resin, phenol resin, maleic acid resin, petroleum resin, ketone resin, nonionic surfactant, mineral oil,
The thermal transfer carbon ink is naturally known, and is disclosed in JP-A-60-
104393, JP 60-137193, JP 61-51386, and JP 62-21.
It is described in detail in Japanese Patent No. 591 or the like.

[Procedure amendment 2]

[Document name to be amended] Statement

[Correction target item name] 0011

[Correction method] Change

[Correction contents]

As the color developer, other phenolic substances such as montmorillonite, attabargite, bentonite, clay, kaolin and the like, such as 4-t-butylphenol, 4-phenylphenol, 2,2-bis (p) are used.
5-hydroxyphenyl) propane, 2,2-bis (p-hydroxyphenyl) butane, polycondensation product of 4-t-butanephenol and formaldehyde, α-naphthol, β-naphthol, or metal salt of salicylic acid derivative t
-Zinc salt of aluminum salicylic acid, zinc salt of 5-phenyl salicylic acid, zinc salt of 5- (4-hydroxyphenyl) -salicylic acid, zinc salt of 3-methyl-5-phenyl-salicylic acid, zinc of condensate of salicylic acid and formaldehyde Salt and the like are useful. Preference is given to mixtures of phenolic substances such as 2,2-bis (p-hydroxyphenyl) propane with zinc salts of salicylic acid derivatives, in particular zinc salts of 5- (4-hydroxyphenyl) -salicylic acid.

[Procedure 3]

[Document name to be amended] Statement

[Correction target item name] 0012

[Correction method] Change

[Correction contents]

The heat-fusible substance used in the present invention is a waxy substance such as carnauba wax, montan wax, auricury wax, candelilla wax, sugar cane 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, myristyrene acid, fatty acid amide (stearoamide etc.), ketone wax (stearone) etc. However, the present invention is not limited to these. The heat fusible substance is 30 to 110.
A wax-like substance having a melting point of ℃, a 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 only ester.

Claims (3)

[Claims] 1. A heat-sensitive recording paper comprising upper paper and lower paper is heated by a thermal printer,
In a heat-sensitive copying method for forming an image on both the surface of the upper paper sheet that does not face the lower paper sheet and the surface of the lower paper sheet that faces the upper paper sheet, the thermosensitive recording paper is placed at the bottom in the central portion. Fold it in two so that the paper sheet is on the inside, pass it through a thermal printer, form an image on one side of the two-sided thermal recording paper, and then form an image on the other side of the two-sided thermal recording paper. A thermal copying method characterized by turning over and passing through a thermal printer. 2. The heat-sensitive copying method according to claim 1, wherein the heat-transfer carbon ink is applied to the surface of the heat-sensitive recording paper facing the lower leaf of the upper leaf, and the lower leaf is plain paper. 3. A thermosensitive recording paper is coated with a colorless mixture of an electron-donating color-developing organic compound and a heat-fusible compound on the surface of the lower leaf paper which faces the lower leaf paper. 2. The heat-sensitive copying method according to claim 1, wherein an organic acidic substance that develops the electron-donating color-developing organic compound upon heating is applied to the surface in contact with the paper.