JPH08310097A - Heat-sensitive duplicate slips of adhesive properties - Google Patents

Abstract

PURPOSE: To protect duplicated filled articles on respective base sheet surfaces from getting soiled or uncleaned when adhesive properties are provided by heat and a color carbon layer is melted by heat. CONSTITUTION: This slip is constituted of a carbon sheet group A composed of a plurality of carbon sheets 3 with heat-resistant carbon layers 2 formed on the rear faces of base sheets 1 on which desired layers required for slips are printed and an adhesive sheet B with a heat-sensitive adhesive layer 4 formed on the rear face of a base sheet 1 on which a desired layer is printed, and the sheet group A is bonded with the sheet B on respective one ends or both ends facing each other on respective peripheries.

Description

Detailed Description of the Invention

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to slips provided with a carbon sheet group which can be copied by writing with a ballpoint pen or the like or by pressing with a printing mold, and more particularly, a thermosensitive adhesive layer. The present invention relates to heat-sensitive adhesive copy slips that can be heated and attached to the back surface.

[0002]

2. Description of the Related Art As conventional copying slips, there are adhesive copying slips having an adhesive layer on the back surface of the slips and having a function of being attached to a predetermined product such as a product or a shipping product.

As the above-mentioned conventional adhesive copy slips, there are, for example, pressure-sensitive adhesive copy slips as shown in the whole perspective view of FIG. 2 or the side view of the schematic laminated state of FIG. As shown in FIG. 2, a wax carbon layer 12 containing wax (wax such as paraffin) as a main component is formed on the back surface of the base sheet 1 on which a desired display layer 5 such as predetermined entry fields required for slips is formed by printing. A base sheet on which a carbon sheet group A in which a plurality of carbon sheets 13 provided with (a coloring layer for copying of a desired color such as black or blue) is superposed and a desired display layer 5 required for slips are formed by printing. 1 is provided with an adhesive sheet B provided with an adhesive layer 14 coated with a pressure sensitive adhesive, and the adhesive sheet B is superposed on the lowermost layer of the sheet group A to form the respective base sheets 1. , For example on one end Cormorants at strip joint 6 is one which is stitched with has been copied slips with each other by an adhesive or staples.

The pressure-sensitive adhesive copy slips include an adhesive layer 14
It requires a sheet-like separator (a release sheet coated with silicone resin, paraffin, etc.) on its surface.

Further, as conventional adhesive copy slips,
There are heat-sensitive adhesive copy slips that do not require a separator on the surface of the adhesive layer 14, and as shown in FIG. 2 or 3, the back surface of the base sheet 1 is heat-sensitive and becomes sticky by heating above a predetermined temperature. The pressure-sensitive adhesive sheet B coated with the pressure-sensitive adhesive of No. 1 is provided on the lowermost layer of the carbon sheet group A, and the base sheet 1 is bonded to the belt-shaped joint 6
There are those formed by binding each other.

In such a conventional adhesive copying slip, as shown in FIG. 3, the carbon sheet group A is formed by stacking about 2 to 5 to 2 to 8 carbon sheets 13. The pressure-sensitive wax carbon layer 12 which is the lowermost layer of the carbon sheet group A is superposed on the surface of the base material sheet 1 of the adhesive sheet B, and the base material sheet 1 is attached to one end portion or both end portions facing each other, or In the periphery, they are bonded and bound to each other at the bonding portion 6 with an adhesive or a stapler.

The wax carbon layer 12 of the conventional sticky copying slips is a non-drying layer having a copying function by writing pressure, and the carbon ink is applied to the surface of the base sheet 1 by a method such as a coating method or a relief printing method. Layers are formed by the method.

The above carbon ink is generally 30 to 7
0% by weight of wax (vegetable wax, bituminous wax, hydrocarbon wax, synthetically modified wax, melting point; 4
0 to 110 ° C.), 20 to 40% by weight of non-drying oil, and 5
It is made into an ink by mixing with 35% by weight of a coloring material (carbon black or the like), and is softened and melted at about 90 to 110 ° C.

Further, in the conventional adhesive copy slips, as shown in FIG. 2, perforations 7 as computer output sheets are provided at one end of the slips or at both ends facing each other.

As the conventional adhesive copying slips, the slips shown in FIG. 2 are set as one unit, and a plurality of such units are stacked and bound together, or a large number of units are arranged in the lateral direction. There are long-sized (web-shaped) copy slips that are continuously formed.

[0011]

In the above heat-sensitive adhesive copy slips which do not require a separator, a predetermined item is filled with a ball-point pen or the like in the entry column of the printed display layer 5 of the uppermost base material sheet 1. By writing, the writing pressure causes the wax carbon layer 12 at a location corresponding to the writing to be transferred to each of the lower base material sheets 1 to copy the writing item.

After writing in this way, the heat-sensitive adhesive layer 14 is heated with an appropriate heat source (electric heater or hot-air blower) to give tackiness, and the copy slips are attached to the heat-sensitive adhesive layer 14. It is used as a copy slip for shipping, a form, etc. by sticking it on the surface of a predetermined article (for example, luggage for shipping) to be stuck via.

FIGS. 4 (a) and 4 (b) show a conventional web-shaped adhesive copy slip W (a carbon sheet group A and an adhesive sheet B are bound together) wound in a roll shape.
Sheet-shaped copy slips (Fig. 2) are printed by a writing tool such as a ballpoint pen or press-printed using a printing die (or a dot printer head), and cut into a sheet along a predetermined cutting line C. FIG. 8 is a schematic side view showing a conventional copy slip preparation process for forming a reference sheet).

FIG. 4 (a) shows a step of producing sheet-like copy slips S ₁ from web-shaped pressure-sensitive adhesive copy slips W _{1 which} are successively unwound, and is formed on the surface of the copy slips W ₁ . ,
A sheet-like copy slip S ₁ is obtained by printing a predetermined entry (information) on the printing pressure P and copying it, and then cutting along the cutting line C. W ₁ does not require heating, and the sheet-like copy slips S _{1 produced} are pressure-sensitive adhesive layers 1
It can be appropriately attached to the article by pressing only via 4.

FIG. 4 (b) shows a step of producing sheet-like copy slips S ₂ from web-shaped heat-sensitive adhesive copy slips W _{2 which} are sequentially unwound, and the surface of the copy slips W ₂ is
A sheet-like copy slip S ₂ is obtained by printing a predetermined entry (information) on the printing pressure P and copying it, and then cutting along the cutting line C. The above heat-sensitive adhesive copy slip W ₂ requires heating, and immediately before or after cutting, the heat-sensitive adhesive layer 14 on the back surface
After performing a heating operation H at an appropriate temperature (for example, about 160 to 180 ° C., or about 180 to 200 ° C.) to impart adhesiveness to the adhesive layer 14, through the adhesive layer 14 having adhesiveness It is necessary to attach it appropriately to the article.

When the above heat-sensitive adhesive copy slip W ₂ is used, for example, a heating operation H is performed at about 160 to 180 ° C.
4B, the shaded portions shown in FIG. 4B are heated and exist between the heated portions of the carbon sheet group A.
The wax carbon layer 12 (see FIG. 3) exhibiting a softening and melting temperature of about 0 to 110 ° C. is melted, and the melted carbon layers 12 other than the pressure-printed portion are transferred and adhered to the respective surface of the base sheet 1. In some cases, the predetermined items to be copied and printed on the surface of each base material sheet and its surroundings may be soiled, or the items may be unclear.

The object of the present invention is to prevent the wax carbon layer from being melted by heat when the heat-sensitive adhesive copying slips are subjected to the heating operation H for imparting tackiness. It is to prevent the entries printed and copied on the surface of each substrate sheet from being stained or blurred.

[0018]

According to the present invention, a plurality of carbon sheets 3 each having a heat resistant carbon layer 2 provided on the back surface of a base sheet 1 on which a desired display layer required for slips is printed are superposed. The carbon sheet group A and the adhesive sheet B having the heat-sensitive adhesive layer 4 provided on the back surface of the base sheet 1 on which the desired display layer is formed by printing are formed. The two sides of the conductive carbon layer and the one side of the base sheet 1 of the pressure-sensitive adhesive sheet B are overlapped with each other, and the base sheets 1 are bonded to each other at one end portion or both end portions facing each other or the periphery. These are heat sensitive adhesive copy slips.

The present invention also provides the heat-sensitive adhesive copy slips of the above invention, wherein the heat-resistant carbon layer 2 has a temperature of 160 ° C.
It is a heat-sensitive adhesive copy slip formed of a resin having a resistance to melting at a temperature of up to 200 ° C.

Further, the present invention provides the heat-sensitive adhesive copy slips of the above-mentioned invention, wherein the heat-resistant carbon layer 2 is 160 ° C.
A thermosensitive adhesive copy slip formed of a resin mainly composed of a rosin-modified resin having a resistance to melting at a temperature of up to 200 ° C.

The present invention also relates to the heat-sensitive adhesive copy slips of the above invention, wherein the carbon sheet group A and the adhesive sheet B are the same or different base sheets 1 respectively. is there.

[0022]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS The heat-sensitive adhesive copy slips of the present invention will be described in detail below with reference to the embodiment. FIG. 1 is a side view schematically showing the heat-sensitive adhesive copy slips in one embodiment of the present invention. Is.

The carbon sheet group A has at least 160
Heat resistance formed by coating the back surface of the base sheet 1 with a heat-resistant carbon colorant having a binder resin of a synthetic resin having a resistance to melting in the range of 200 to 200 ° C. Sheet 3 provided with a conductive carbon layer 2
2 or more sheets (for example, about 5 to 8 sheets or more) are superposed.

The adhesive sheet B is the carbon sheet 3 described above.
By applying a heat-sensitive adhesive to the back surface of the base material sheet 1 similar to or different from the base material sheet used for
The heat-sensitive adhesive layer 4 is provided.

The heat-sensitive adhesive has insufficient adhesiveness (pressure-sensitive adhesive strength) at a temperature lower than a certain temperature (for example, room temperature or 40 ° C. to 80 ° C.), and the adhesiveness is imparted by heating at a certain temperature or higher. It is an adhesive having a so-called delayed tack property.

The basic composition of the heat-sensitive adhesive is composed of a polymer material, a tackifier, and a solid plasticizer, and the adhesiveness (pressure-sensitive adhesiveness) is lower than a certain temperature (for example, room temperature or 40 ° C.-80 ° C.). ) Is insufficient, adhesiveness is generated by heating above a certain temperature, and it lasts for a considerable period after cooling. It is an adhesive (adhesive) with so-called delayed tack property. Has no tack and does not require a separator (release paper).

The polymer material which is the composition of the heat-sensitive adhesive is a component which gives an adhesive force, and is, for example, polyvinyl acetate, copolyethylene-vinyl acetate, polyacrylic acid ester-based, polyvinyl chloride-based, natural. Rubber, synthetic rubber,
There are copolyvinyl acetate-acrylic acid ester, polyester-based, polyurethane-based polymer compounds and the like.

The tackifier, which is a composition of the heat-sensitive adhesive, is a component for enhancing the adhesiveness when activated by heating, and is, for example, a rosin derivative, a terpene resin system, a petroleum resin. There are resins such as resin, phenol resin and xylene resin.

The solid plasticizer, which is the composition of the heat-sensitive adhesive, is solid at room temperature and melts when heated above the melting point, swells and dissolves the polymeric material and the tackifier to give viscous and adhesive properties. Since it does not crystallize easily after being expressed and once melted, the adhesive retention time after heat activation can be prolonged, and examples thereof include diphenyl phthalate, dihexyl phthalate, dicyclohexyl phthalate, and phthalic acid. Dihydroabietyl, dimethyl isophthalate, sucrose benzoate, ethylene glycol dibenzoate, trimethylolethane tribenzoate, tribenzoic acid glyceride, pentaerythyl tetrabenzoate, sucrose octaacetate, tricyclohexyl N-cyclohexyl-
There are organic compounds that are solid at room temperature, such as P-toluenesulfonamide.

In the heat-sensitive adhesive slips, the heat-resistant carbon layer 2 at the bottom of the carbon sheet group A is superposed on the base sheet 1 of the adhesive sheet B, and the base sheet 1 is prepared. Are joined together at one end thereof at a joint portion 6 such as an adhesive or a stapler, and are bound.

In the heat-sensitive adhesive copy slips of the present invention, one set of copy slips is formed by superposing the carbon sheet group A and the adhesive sheet B as described above. A plurality of sets may be overlapped with each other, and one end of the overlapped part may be bound to each other (or each set may be detachably bound to each other) to form a booklet-like copy slip. .

As the material of the base material sheet 1, a paper sheet such as a high-quality paper is suitable, but synthetic paper (or a synthetic resin film, sheet) or the like may be used, and is not particularly limited in the present invention. Not something.

The base sheet 1 used for the carbon sheet group A and the base sheet 1 used for the adhesive sheet B may have the same material and thickness, or different materials. It may be thickness.

The material thickness used for the base sheet 1 is
For example, in the case of high-quality paper, a continuous amount of 39 to 41 kg or 41 to 45 kg (continuous amount; total weight of paper / 1000 sheets) is suitable for A size or B size, but is not particularly limited in the present invention. .

The heat-resistant carbon layer 2 applied to the base sheet 1 is a non-drying layer having a copying function (transfer performance) by writing pressure, and is entirely or in a predetermined area on the back surface of the base sheet 1. It is applied in a pattern, 160-
At least non-drying by mixing an appropriate amount of colorant (coloring material) such as carbon black into a resin binder prepared by mixing a heat-resistant resin that is resistant to heat in the range of 200 ° C. and a non-drying oil. The colored resin of is used.

The heat-resistant carbon layer 2 has a thickness of 3-4.
g / m ^2, or 4-6 g / m ² approximately, but it is appropriate, in the present invention is not particularly limited.

As the resin in the non-drying colored resin for forming the heat resistant carbon layer 2, gum rosin,
Softening point 70-85 such as wood rosin and tall oil rosin
A rosin derivative resin having heat resistance to heat of 160 to 200 ° C. by modifying hydrogenated, disproportionated or dimerized rosin at 0 ° C., or methanol, glycols, glycerin, penta A rosin derivative resin having heat resistance to heat of 160 to 200 ° C. can be used by esterification with various alcohols such as erythritol.

As the non-drying oil in the non-drying colored resin for forming the heat resistant carbon layer 2, paraffinic, naphthenic, aromatic or mixed mineral oil having a boiling point of 350 ° C. or higher, or A non-drying vegetable oil such as castor oil can be used, and a surfactant can also be used depending on the application.

Further, examples of the coloring material mixed with the non-drying colored resin are as follows. Black: Carbon black, Oil black Blue: Navy blue, Cyanine blue, Alkali blue, Methyl violet lake Red: Lake red, Carmine white: Calcium carbonate, alumina white, clay, titanium white

An example of the composition ratio of the non-drying colored resin for forming the heat resistant carbon layer 2 will be shown below. Rosin derivative resin (rosin modified resin): 18-50% by weight Non-drying oil: 30-70% by weight Coloring material:・ ・ ・ 5 to 35% by weight

The heat-sensitive adhesive layer 4 is coated on the back surface of the base sheet 1 which is the lowermost layer of each set of copying slips, and the coating thickness is 10 to 15 g / m ² , or About 15 to 20 g / m ² is suitable, but is not particularly limited in the present invention.

The display layer 5 is formed by printing at an appropriate position on each base material sheet 1, and is an entry field such as a slip to be filled in by printing pressure such as writing pressure by a writing instrument.

The joint portion 6 may be formed along the opposite end portions of each base material sheet 1 or along the periphery, in addition to the one end portion. Further, the joint portion 6 may be formed of an adhesive, or may be joined and bound by a binding device such as a stapler.

Specific examples of the heat-sensitive adhesive copy slips of the present invention will be shown below.

<Example 1> After printing a display layer 5 (entry field) to be printed and printed on each page of a voucher by multi-sided printing on a high-quality paper of A full size of 41 kg continuous weight by a printing machine, A large number of base material sheets for each page for the carbon sheet group were prepared by cutting into a predetermined same size corresponding to the multiple imposition size.

Carbon black was mixed in a non-drying resin binder prepared by mixing castor oil with rosin-modified resin to prepare a heat-resistant non-drying colored resin.

The composition of the heat-resistant non-drying colored resin used was as follows. Rosin-modified resin: 20% by weight Castor oil: 65% by weight Carbon black: 15% by weight

Next, the non-drying colored resin is applied in a coater or a printing machine (for example, a letterpress printing machine) in an amount of 4 g / g over the entire area of the back surface of each of the base material sheets other than around the edges.
A heat resistant carbon layer was formed by applying the same coating thickness of m ² to prepare a large number of carbon sheets.

Next, the above-mentioned carbon sheets were collected in the order of a predetermined page of a voucher, and one end thereof was joined with an adhesive agent to be bound to form a set of carbon sheet groups.

Next, the back surface of the quality paper of A Zenban size basis weight 45 kg, after applying the heat-sensitive adhesive at the coating thickness of 15 g / m ^2, the base sheet and the same size of the carbon sheet The sheet was cut to prepare a large number of adhesive sheets having a heat-sensitive adhesive layer on the back surface. The thermosensitive adhesive is DW-
1040 (manufactured by Toyo Ink Mfg. Co., Ltd.) was used and applied by a gravure coating method.

Next, the heat-resistant carbon layer, which is the lowermost layer of the above-mentioned set of carbon sheets, is superposed on the surface of the base sheet of the above-mentioned one adhesive sheet, and one end thereof is joined by an adhesive. Were bound together to produce a set of heat-sensitive adhesive copy slips of the present invention. Note that the creation and binding of the front cover and back cover of the slip are omitted in the first embodiment.

Comparative Example 1 As the heat-resistant, non-drying colored resin of Example 1, the rosin-modified resin was changed to wax, and the castor oil was changed to mineral oil.
In the same manner as above, a set of heat-sensitive adhesive copy slips was prepared.

The composition ratio of the non-drying colored resin used was as follows. Wax: 45% by weight Mineral oil: 30% by weight Carbon black: 15% by weight

The invention product and the comparative product were compared in the following manner.

<Comparative Test> One set each of the heat-sensitive adhesive copy slips of the present invention prepared in Example 1 above and one set of the heat-sensitive adhesive copy slips prepared in Comparative Example 1 above. Using the impact printer (manufactured by IBM Corp.) as a printing device from the uppermost base sheet of the copy slip, printing is performed at a predetermined printing pressure, and then the heat-sensitive adhesive layer at the bottom of the slip is printed. In order to impart tackiness, each slip was heated at 70 ° C or 200 ° C.

<Comparison result> The data of the above comparison test are shown in Table 1.
Summarized in.

[0057]

[Table 1]

As shown in Table 1 above, in the copying slip of the present invention prepared in Example 1, the heat-sensitive adhesive layer was not sufficiently activated (adhered) at 70 ° C., and hot air at 200 ° C.
When sprayed for a second, tackiness was imparted.

Further, the heat-resistant carbon layer (copyable layer) does not melt, the base sheet is not damaged by the melting of the heat-resistant carbon layer, and the base sheet surface below the heat-resistant carbon layer is not damaged. The printed matter was clearly copied as it was when the printing pressure was applied.

On the other hand, in the above-mentioned copy slip prepared in Comparative Example 1, when hot air of 70 ° C. was blown for 1 second, activation (adhesion) of the heat-sensitive adhesive layer was insufficient, and hot air of 200 ° C.
After spraying for 2 seconds, tackiness was imparted, but the heat-resistant carbon layer (copyability layer) was melted, and the base sheet was damaged due to melting of the heat-resistant carbon layer. The printed matter was unclear due to the printing pressure on the surface of the base sheet on the side.

[0061]

In the heat-sensitive adhesive copy slips of the present invention, a plurality of carbon sheets 3 each having a heat-resistant carbon layer 2 provided on the back surface of a base material sheet 1 on which desired display layers required for slips are printed are stacked. The combined carbon sheet group A and the adhesive sheet B in which the heat-sensitive adhesive layer 4 is provided on the back surface of the substrate sheet 1 on which a desired display layer is formed by printing are formed, and the carbon sheet group A and the adhesive sheet B are formed. Are bonded to each other at one end or both ends facing each other or around each other. Particularly, on the back surface of each base material sheet 1 of the carbon sheet group A, for example, with respect to heat of 160 to 200 ° C. Since the heat-resistant carbon layer 2 having melt resistance is provided, heat resistance is maintained even at a temperature higher than room temperature, for example, 160 ° C. to 200 ° C., in order to activate the heat-sensitive adhesive layer 4 and impart adhesiveness. Carbon layer 2 is not melted .

Therefore, the copy slips of the present invention are
It is possible to prevent the base material sheet 1 under the carbon layer from being contaminated by the coloring material contained in the melted carbon layer as in the prior art, and clear entry items due to the writing pressure or the printing pressure can be displayed. Can be copied to.

[0063]

EFFECT OF THE INVENTION The heat-sensitive adhesive copy slips of the present invention, when subjected to a heating operation for activating the heat-sensitive adhesive layer to impart tackiness, the carbon layer containing the coloring material is not melted by heat, There is an effect that a good copy can be made without the respective base material sheet surfaces and the entries printed by copying being contaminated or blurred by the coloring material.

[Brief description of drawings]

FIG. 1 is a side view schematically illustrating heat-sensitive adhesive copy slips of the present invention.

FIG. 2 is an external perspective view illustrating the entire general adhesive copy slips.

FIG. 3 is a side view schematically illustrating a general adhesive copy slip.

FIG. 4A is a schematic side view showing a general process for producing pressure-sensitive adhesive copy slips, and FIG. 4B is a schematic side view showing a general process for producing heat-sensitive adhesive copy slips. .

[Explanation of symbols]

DESCRIPTION OF SYMBOLS 1 ... Base-material sheet 2 ... Heat-resistant carbon layer 3 ... Carbon sheet 4 ... Heat-sensitive adhesive layer 5 ... Display layer 6 ... Joint part 7 ... Perforation 12 ... Wax carbon layer 13 ... Carbon sheet 1
4 ... adhesive layer A ... carbon sheet group B ... adhesive sheet C ... cutting line H ... heating operation P ... printing pressure W ₁ ... web-like pressure-sensitive adhesive property copy slips W ₂ ... web-like heat-sensitive adhesive copying documents S ₁ … Sheet-shaped pressure-sensitive adhesive copy slips S ₂ … Sheet-shaped heat-sensitive adhesive copy slips

Claims (4)

[Claims] 1. A carbon sheet group A in which a plurality of carbon sheets 3 each having a heat-resistant carbon layer 2 provided on the back surface of a base sheet 1 on which a desired display layer required for slips is printed are stacked, and a desired sheet. And a pressure-sensitive adhesive sheet B having a heat-sensitive adhesive layer 4 provided on the back surface of the substrate sheet 1 on which the above-mentioned display layer is formed by printing, and the heat-resistant carbon layer 2 surface which is the lowermost layer of the carbon sheet group A; Base sheet 1 for adhesive sheet B
A heat-sensitive adhesive copy slip, characterized in that the base sheets 1 are superposed on each other, and the base sheets 1 are joined to each other at one end portion or both end portions facing each other or in the periphery. 2. The heat resistant carbon layer 2 has a temperature of 160 ° C. to 20 ° C.
The heat-sensitive adhesive copy slip according to claim 1, which is formed of a resin having a resistance to melting at 0 ° C. 3. The heat resistant carbon layer 2 has a temperature of 160 ° C. to 20 ° C.
2. The heat-sensitive adhesive copy slip according to claim 1, which is formed of a resin mainly composed of a rosin-modified resin having a resistance to melting at 0 ° C. 4. The carbon sheet group A and the adhesive sheet B
4. The heat-sensitive adhesive copy slips according to claim 1, wherein the same or different base sheet 1 is used for each.