JP2001287434A - Printing sheet - Google Patents

Abstract

PROBLEM TO BE SOLVED: To provide a printing sheet constituted so as to eliminate the adverse effect on global environment or a human body caused by a volatile organic compound(VOC) causing the formation of smog or an ozone hole caused by a petroleum solvent in printing ink to generate a greenhous phenomenon. SOLUTION: A sheet 1 for a three-folded post card being the printing sheet has items, which must be preliminarily printed on the three-folded post card 1, such as a post card mark 13, a postal code entry column 14, a use specifics entry column 15, a title 16 or the like printed thereon by soybean oil ink containing no petroleum solvent and excellent in heat resistance and abrasion resistance.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a printing sheet having an entry section for entry by a printer (including handwritten entry in the case of copy entry).

[0002]

2. Description of the Related Art In a conventional printing sheet, items to be printed are printed in advance by using a normal ink containing a petroleum-based solvent, for example, an oxidation polymerization type offset ink.

[0003]

According to this conventional example,
The petroleum-based solvent evaporates in the printing process and emits volatile organic compounds (VOCs) that form smog and ozone holes and cause a greenhouse phenomenon. This VOC has a bad influence on the global environment and also has a bad influence on the health of printing workers, and there is a possibility that VOCs generated from petroleum solvents remaining on the sheet may have a bad influence on the health of persons touching the sheet. is there. Furthermore, conventional, for example, oxidation polymerization type offset ink is inferior in heat resistance and abrasion resistance, so that it adheres to a transport portion of a device at the time of printing and causes stains,
In addition to the transfer of this stain to the sheet, when applied to a carbonless copy sheet, it inhibits color formation, and the petroleum-based solvent destroys the microcapsules containing the dye and extracts the dye, causing unexpected color formation. There is a fear. An object of the present invention is to provide a printing sheet that has solved such a disadvantage.

[0004]

In order to achieve the above object, a printing sheet according to claim 1 of the present application is a printing sheet having an entry section, and a matter to be printed on the sheet in advance is soybean oil. Printed with ink.

Also, in order to achieve the above object, a printing sheet according to a second aspect of the present invention is a printing sheet having an entry portion, and is formed by stacking a plurality of sheets. It is equipped with a carbonless copying structure so that it can be copied and written on the lower sheet by filling in the sheet, and among the items to be printed in advance on these sheets, at least the items to be printed on the copy structure installation part are printed with soybean oil ink It was done.

[0006]

Preferred embodiments of the present invention will be described below in detail with reference to the accompanying drawings. 1 to 3 show an embodiment applied to a tri-fold postcard sheet. FIG. 1 is a plan view showing a front side of a tri-fold postcard sheet as a print sheet, and FIG. 2 is a back side thereof. FIG. 3 is a perspective view of the created tri-fold postcard. 4 and 5 show an embodiment applied to a copy sheet. FIG. 4 is a plan view of a copy sheet as a print sheet, and FIG. 5 is a sectional view taken along line AA of FIG.

As shown in FIGS. 1 and 2, a three-fold postcard sheet 1 as a print sheet is folded in a Z-shape through respective folding perforations 2 and 3;
It is composed of a second sheet 3 and a third sheet 6, and each unit sheet 7 is in a continuous state connected via a folding / cutting perforation 8. The second piece of paper 5 is formed in a size that meets the standards of the legal postcard, and the other two pieces of paper 4 and 6 have the length in the width direction of the second piece of paper.
It is formed shorter than a piece of paper. On both sides of the three-fold postcard sheet 1 in the width direction, there are provided marginal portions 11 in which a large number of marginal holes 10 are provided at equal intervals from the perforation 9 for cutting.

As shown in FIG. 1, the front side of the first piece of paper 4 is an entry section a for printing destination information 12 (see FIG. 3), and a postcard mark 13 and a zip code entry field 14 are printed with soybean oil ink. On the front side of the second paper piece 5 and the third paper piece 6, a usage statement entry field 15 which is an entry section b for printing usage statement information (not shown) to be kept confidential is provided. And printed with soybean oil ink.

On the other hand, as shown in FIG. 2, the sender information 17 is provided on the back side of the third paper sheet 6 by printing with soybean oil ink, and the guide text is provided on the back side of the first paper sheet 4 and the second paper sheet 5. Reference numeral 18 is provided by printing with soybean oil ink, and at a position along the folding perforation 3 on the back side of the second sheet 4, a postcard display 19 of “postcard” is provided by printing with soybean oil ink.

Although not shown, the entire back surface of the first sheet 4 and the second sheet 5, which are folded surfaces, and the second sheet 5
A normal pressure-sensitive adhesive which is not bonded to the entire surface of the third paper piece 6 but can be bonded when a predetermined pressure is applied, and which can be peeled off after bonding is applied. As the pressure-sensitive adhesive, for example, a non-peelable adhesive base which is difficult to be peeled once adhered due to pressure sensitivity, and a fine-grained filler exhibiting non-affinity with the non-peelable adhesive base are blended. What is obtained is preferable. Then, the adhesive force of the pressure-sensitive adhesive can be adjusted by the mixing ratio of the fine particulate filler.

The above-mentioned printing sheet 1 is transported by a tractor (not shown) using the marginal hole 10 and is transported by a suitable printer (not shown).
The destination information 12 is printed in the destination information entry section a of the sheet 4, the postal code is printed in the postal code entry field 14, and the usage statement information (in the usage statement entry field 15 of the second and third sheets 5, 6) (Not shown).

At the time of printing, soybean oil ink has high heat resistance and abrasion resistance because of high hardness of the ink film.
Stain is unlikely to occur due to the adhesion of ink to the transport section, the toner fixing section (in the case of a non-impact printer), or the print head (in the case of a thermal printer), and there is almost no transfer to the print sheet 1 due to the stain. Thus, a large number of printing operations can be continuously performed.

The printed printing sheet 1 is
After removing the marginal portion 11, each folding perforation 2,
3 and a predetermined pressure is applied by a pressure roller (not shown) to adhere the superposed surfaces, whereby a postcard 20 shown in FIG. 3 is obtained. During this pressurization, stains due to the adhesion of ink to the pressure roller hardly occur, and transfer to the print sheet 1 due to the stains hardly occurs.

The postcard 20 is mailed to a destination in a state where the usage statement information printed in the usage statement entry field 15 is concealed from the outside so as to be invisible. For mailed addresses, the first
By winding up the sheet 4 and the third sheet 6 from the second sheet 5 and peeling them off, the concealed usage statement information and the guidance 18 can be visually recognized.

Next, an embodiment applied to a copy sheet will be described with reference to FIGS. As shown in FIGS. 4 and 5, the copy sheet 31 is composed of an upper sheet 33 serving as a copy and a lower sheet 34 to be delivered to an issue destination, with one end side of the copy sheet 31 stably separated by a weak adhesive 32 having a weak adhesive force. As shown in FIG. 4, on the surface of the upper sheet 33, there is provided a usage statement entry field 35, which is an entry section c to be printed, printed with soybean oil ink together with a title 36 of "usage statement".

As shown in FIG. 5, a dye-encapsulating microcapsule agent layer 37 is provided on the back side of the upper sheet 33 in a portion corresponding to the use specification entry field 35. As the microcapsules constituting the dye-containing microcapsule agent layer 37, known microcapsules can be used. For example, microcapsules which can be applied in a spot form and which can be dried quickly without heating are formed into ultraviolet curable inks. Is preferred.

On the other hand, on the front side of the lower sheet 34, FIG.
As shown in FIG. 3, a well-known developer layer 38 is provided in a portion of the upper sheet 33 facing the dye-containing microcapsule agent layer 37, and although not shown, a usage specification entry column 3 is provided.
The same entry field is printed and provided with soybean oil ink at a position corresponding to the lower order of the number five. As the color developer constituting the color developer layer 38, for example, clays, phenol resins, polyvalent metal salts of aromatic carboxylic acids, and the like, and mixtures thereof can be used. And zinc salts of 2,2-bisphenolsulfone compounds are preferred.

Here, since soybean oil has a small tendency to inhibit the color development of carbonless paper, soybean oil ink using the same is unlikely to lower the color intensity of a color image. Also,
Since soybean oil ink does not contain a petroleum-based solvent, the leuco dye is hardly extracted from the microcapsules.

The copy sheet 31 configured as described above is
When printing is performed by applying a printing pressure to a use specification entry field 35 of the upper sheet 33 with an appropriate printer, or when a predetermined item is written with an appropriate writing implement such as a ball-point pen, the printing pressure or the writing pressure is applied to the lower sheet. The developer of the color developer layer 38 reacts with the dye of the dye-encapsulated microcapsule agent layer 37 to form a color on the surface of the color developer layer 34, so that the same matter as the printed matter or the written matter is clearly copied.

When copying and writing with this printer, the soybean oil ink has a high hardness of the ink film, and therefore has excellent heat resistance and abrasion resistance. Since there is almost no transfer to the copy sheet 31 due to the dirt, a large amount of printing operations can be continuously performed.

The present invention is not limited to the above-described embodiment. For example, the printing sheet is not limited to the trifold postcard sheet 1 or the copy sheet 31, but may be applied to a medicine bag or a delivery slip. It can be applied to a single sheet. Further, the carbonless copying structure of the copy sheet 31 may be configured such that a self-coloring agent layer including a dye-encapsulated microcapsule and a developer is provided on the surface side of the lower sheet 34. Further, it goes without saying that the printing position and the printing content using the soybean oil ink are not limited to those described above.

[0022]

As is clear from the above description,
According to the printing sheet described in claim 1 of the present invention, since the soybean oil ink does not generate VOC, it does not cause harm to the global environment and the human body, and has high hardness of the ink film and heat resistance and Since it is excellent in abrasion resistance, it has an effect of being excellent in mechanical suitability for various devices such as a printer.

According to the printing sheet according to the second aspect of the present invention, in addition to the effects of the first aspect, the soybean oil ink does not reduce the color intensity due to the carbonless copying structure. In addition, since the microcapsules are not destroyed by the petroleum-based solvent, unexpected color development can be prevented, and clear copying can always be performed.

[Brief description of the drawings]

FIG. 1 is a plan view showing the front side of a tri-fold postcard sheet.

FIG. 2 is a plan view showing the back side of the same.

FIG. 3 is a perspective view of the created tri-fold postcard.

FIG. 4 is a plan view of a copy sheet.

FIG. 5 is a sectional view taken along line AA of FIG. 4;

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Tri-fold postcard sheet 2, 3 Fold perforation 4 1st paper piece 5 2nd paper piece 6 3rd paper piece 7 Unit sheet 8 Cutting perforation 12 Address information 13 Postal postmark mark 14 Postal code entry field 15 Usage details entry field 16 Title 17 Sender Information 18 Guidance 19 Postcard Display 20 Tri-Fold Postcard 31 Copy Sheet 33 Upper Sheet 34 Lower Sheet 35 Usage Details Entry Field 36 Title 37 Dye-Encapsulated Microcapsule Layer 38 Developer Layer a, b, c

Claims (2)

[Claims] 1. A printing sheet having an entry portion, wherein a matter to be printed on the sheet is printed in advance with soybean oil ink. 2. A printing sheet having a writing section, wherein a plurality of sheets are superimposed on each other, and a carbonless copying structure is provided so that writing on a top sheet allows copying and writing on a lower sheet. A printing sheet, comprising: printing out at least items to be printed on the copy structure installation portion with soybean oil ink among the items to be printed on these sheets in advance.